Archive for March, 2012
How a single gene mutation leads to uncontrolled obesity
ScienceDaily (Mar. 18, 2012) Researchers at Georgetown University Medical Center have revealed how a mutation in a single gene is responsible for the inability of neurons to effectively pass along appetite suppressing signals from the body to the right place in the brain. What results is obesity caused by a voracious appetite.
Their study, published March 18th on Nature Medicine's website, suggests there might be a way to stimulate expression of that gene to treat obesity caused by uncontrolled eating.
The research team specifically found that a mutation in the brain-derived neurotrophic factor (Bdnf) gene in mice does not allow brain neurons to effectively pass leptin and insulin chemical signals through the brain. In humans, these hormones, which are released in the body after a person eats, are designed to "tell" the body to stop eating. But if the signals fail to reach correct locations in the hypothalamus, the area in the brain that signals satiety, eating continues.
"This is the first time protein synthesis in dendrites, tree-like extensions of neurons, has been found to be critical for control of weight," says the study's senior investigator, Baoji Xu, Ph.D., an associate professor of pharmacology and physiology at Georgetown.
"This discovery may open up novel strategies to help the brain control body weight," he says.
Xu has long investigated the Bdnf gene. He has found that the gene produces a growth factor that controls communication between neurons.
For example, he has shown that during development, BDNF is important to the formation and maturation of synapses, the structures that permit neurons to send chemical signals between them. The Bdnf gene generates one short transcript and one long transcript. He discovered that when the long-form Bdnf transcript is absent, the growth factor BDNF is only synthesized in the cell body of a neuron but not in its dendrites. The neuron then produces too many immature synapses, resulting in deficits in learning and memory in mice.
Xu also found that the mice with the same Bdnf mutation grew to be severely obese.
Other researchers began to look at the Bdnf gene in humans, and large-scale genome-wide association studies showed Bdnf gene variants are, in fact, linked to obesity.
But, until this study, no one has been able to describe exactly how BDNF controls body weight.
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How a single gene mutation leads to uncontrolled obesity
This Week in PLoS
In PLoS One this week, researchers at Thailand's National Center for Genetic Engineering and Biotechnology present microPIR, a database of "microRNA-promoter target interactions for experimental microRNA researchers and computational biologists to study the microRNA regulation through gene promoter." The database "integrates various annotated genomic sequence databases repetitive elements, transcription factor binding sites, CpG islands, and SNPs offering users the facility to extensively explore relationships among target sites and other genomic features," the authors write. "The built-in genome browser of microPIR provides a comprehensive view of multidimensional genomic data." The resource also includes a PCR primer design module to facilitate experimental validation, and functional data from the OMIM and other resources, the team adds.
Elsewhere in the journal, a Japanese team led by investigators at Kitasato University presents the carbonic anhydrase XII, or CAXII, antibody as a sero-diagnostic marker for lung cancer, based on immunoprecipitation and MADLI TOF/TOF-mass spectrometry analysis.
Over in PLoS Genetics, the University of California, Davis' Daniele Filiault and Julin Maloof report on a GWAS for variants associated with increased hypocotyl elongation in Arabidopsis thaliana. Filiault and Maloof describe variants that underlie the shade-avoidance response in the plant.
A team led by investigators at Princeton University this week describes the "genetic architecture of highly complex chemical resistance traits across four yeast strains," through an extreme QTL mapping approach. The team says its results "improve our understanding of complex traits in yeast and have implications for study design in other organisms."
Read more:
This Week in PLoS
Genetic research develops tools for studying diseases, improving regenerative treatment
ScienceDaily (Mar. 19, 2012) Research from a Kansas State University professor may make it easier to recover after spinal cord injury or to study neurological disorders.
Mark Weiss, professor of anatomy and physiology, is researching genetic models for spinal cord injury or diseases such as Parkinson's disease. He is developing technology that can advance cellular therapy and regenerative medicine -- a type of research that can greatly improve animal and human health.
"We're trying to build tools, trying to build models that will have broad applications," Weiss said. "So if you're interested in neural differentiation or if you're interested in response after an injury, we're trying to come up with cell lines that will teach us, help us to solve a medical mystery."
Weiss' research team has perfected a technique to use stem cells to study targeted genetic modifications. They are among a handful of laboratories in the world using these types of models for disease. The research is an important step in the field of functional genomics, which focuses on understanding the functions and roles of these genes in disease.
The researchers are creating several tools to study functional genomics. One such tool involves developing new ways to use fluorescent transporters, which make it easier to study proteins and their functions. These fluorescent transporters can be especially helpful when studying neurological disorders such as Parkinson's disease, stroke and spinal cord injury.
"People who have spinal cord injury do not experience a lot of regeneration," Weiss said. "It is one of the problems of the nervous system -- it is not great at regenerating itself like other tissues."
The researchers want to discover a way to help this regenerative process kick in. By studying signals from fluorescing cells, they can understand how neural stem cells are reactivated.
"We want to try and make these genetic markers, and then we can test different kinds of treatment to see how they assist in the regenerative process," Weiss said.
Weiss' stem cell research has appeared in two recent journals: Stem Cells and Development and the Journal of Assisted Reproduction and Genetics. His research has been funded by the National Institutes of Health and university funds, including the Johnson Cancer Research Center.
Weiss' seven-member research team includes a visiting professor, two full-time researchers, a graduate student and three undergraduates. He has also been collaborating with researchers from the University of Kansas Medical Center.
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Genetic research develops tools for studying diseases, improving regenerative treatment
Genetic variation in human gut viruses could be raw material for inner evolution
ScienceDaily (Mar. 19, 2012) A growing body of evidence underscores the importance of human gut bacteria in modulating human health, metabolism, and disease. Yet bacteria are only part of the story. Viruses that infect those bacteria also shape who we are. Frederic D. Bushman, PhD, professor of Microbiology at the Perelman School of Medicine at the University of Pennsylvania, led a study published this month in the Proceedings of the National Academy of Sciences that sequenced the DNA of viruses -- the virome -- present in the gut of healthy people.
Nearly 48 billion bases of DNA, the genetic building blocks, were collected in the stools of 12 individuals. The researchers then assembled the blocks like puzzle pieces to recreate whole virus genomes. Hundreds to thousands of likely distinct viruses were assembled per individual, of which all but one type were bacteriophages -- viruses that infect bacteria -- which the team expected. The other was a human pathogen, a human papillomavirus found in a single individual. Bacteriophages are responsible for the toxic effects of many bacteria, but their role in the human microbiome has only recently started to be studied.
To assess variability in the viral populations among the 12 individuals studied, Bushman's team, led by graduate student Samuel Minot, looked for stretches of bases that varied the most.
Their survey identified 51 hypervariable regions among the 12 people studied, which, to the team's surprise, were associated with reverse transcriptase genes. Reverse transcriptase enzymes, more commonly associated with replication of retroviruses such as HIV, copy RNA into DNA. Of the 51 regions, 29 bore sequence and structural similarity to one well-studied reverse transcriptase, a hypervariable region in the Bordetella bacteriophage BPP-1. Bordetella is the microbe that causes kennel cough in dogs.
BPP-1 uses reverse transcriptase and an error-prone copying mechanism to modify a protein to aid in entering and reproducing in a wide array of viral targets. Bushman and colleagues speculate that the newly discovered hypervariable regions could serve a similar function in the human virome, and microbiome, by extension.
"It appears there's natural selective pressure for rapid variation for these classes of bacteriophages, which implies there's a corresponding rapidly changing environmental factor that the phage must be able to quickly adapt to," says Minot. Possible reasons for change, say the authors, include evading the immune system and keeping abreast of ever-evolving bacterial hosts -- a kind of mutation-based host-pathogen arms race. Whatever the case, Minot says, such variability may be helping to drive evolution of the gut microbiome: "The substrate of evolution is mutation."
Evolutionary analysis of the 185 reverse transcriptases discovered in this study population suggests that a large fraction of these enzymes are primarily involved in generating diversity. Now, Minot says, the challenge is to determine the function of the newly discovered hypervariable regions, and understand how their variability changes over time and in relationship to disease.
"This method opens a whole new world of 'diversity-generating' biology to discover what these clearly important systems are actually doing," he says.
In addition to Bushman and Minot, co-authors are Stephanie Grunberg (Department of Microbiology); Gary Wu (Division of Gastroenterology); and James Lewis (Department of Biostatistics and Epidemiology), all from Penn.
The research was supported by grants from the National Institutes of Health, Pennsylvania Department of Health, and the Crohn's and Colitis Foundation of America.
Continued here:
Genetic variation in human gut viruses could be raw material for inner evolution
Geneticist: We need more people who can explain genetic data to patients
Dr. Charis Eng
For the promise of personalized medicine to be realized, the health industry needs more people who can interpret genetic data and make that data meaningful to patients, according to a prominent Cleveland Clinic geneticist.
The ability to tailor treatment to a patients genetic profile plus, the rapidly declining cost of technology to analyze genetic data holds lots of possibilities for improving health, but also brings risks, according to Dr. Charis Eng, chair of Cleveland Clinics Genomic Medicine Institute.
For example, data analyzed incorrectly could be dangerous, while data presented badly could create unjustified fears in patients, Eng told MIT Technology Review.
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The people who are very facile at interpreting [information] to the patient are very few and far between, she said.
Eng spoke with Technology Review about a recent paper in the journal Cell, in which a Stanford University genetics professor for two-and-a-half years tracked a host of his own personalized health data at the molecular level. This article reminds us that the future is now, Eng said.
Eng placed at No. 31 in MedCity News list of the The 50 best Cleveland Clinic doctors. Ever. In 2010, she was elected to the Institutes of Medicine.
Her research has led to the discovery of three genetic mutations that are linked to thyroid cancer.
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Geneticist: We need more people who can explain genetic data to patients
New genetic path for scleroderma
Public release date: 19-Mar-2012 [ | E-mail | Share ]
Contact: Marla Paul marla-paul@northwestern.edu 312-503-8928 Northwestern University
CHICAGO --- A genetic pathway previously known for its role in embryonic development and cancer has been identified as a target for systemic sclerosis, or scleroderma, therapy. The finding, discovered by a cross-disciplinary team led by John Varga, MD, John and Nancy Hughes Distinguished Professor of Rheumatology at Northwestern University Feinberg School of Medicine, was recently published in the journal Arthritis & Rheumatism.
"We showed, for the first time, that the Wnt signaling pathway is abnormally activated in scleroderma patients," said Varga, who is also a physician at Northwestern Memorial Hospital. "This is significant for three reasons. First, it gives a better picture of scleroderma and fibrosis in general. Second, it provides a strategy for assessing disease severity, progression, and activity. And third, it opens a door for the design of treatments that aim to block the Wnt pathway and restore its normal controlled activity."
Varga's laboratory collaborated with a pulmonary team at Northwestern, along with teams at Case Western Reserve University and Dartmouth University on the discovery.
Researchers studied skin and lung biopsies from scleroderma patients and found that the Wnt pathway was 'turned on', in contrast to healthy individuals where the pathway was 'turned off.' Varga said this activation may be due to loss of Wnt inhibitors that normally serve as 'brakes' on the pathway to prevent its activation.
The team also examined what the pathway does using fibroblasts and stem cells from healthy people. They found Wnt causes fibroblast activation and blocks the development of fat cells (adipocytes), which directly contribute to scar formation and tissue damage seen in scleroderma.
Scleroderma is a chronic autoimmune disease in which the body's immune system attacks itself. It causes progressive thickening and tightening (fibrosis) of the skin and also can lead to serious internal organ damage and, in some cases, death. Scleroderma affects an estimated 150,000 people in the United States, most frequently young to middle-aged women.
"Scleroderma is a complex and poorly understood disease with no cure," said Varga. "Our findings suggest that treatments targeting the Wnt signaling pathway could lead to an effective treatment."
Varga said Northwestern researchers next plan to conduct multi-center preclinical studies to evaluate treatments that block the Wnt pathway in animal models and measure Wnt activity in additional scleroderma biopsies to see if it can be clinically useful as a biomarker.
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New genetic path for scleroderma
Nuvilex Highlights the Technology and Advances Behind the Cutting-Edge Cell-in-a-Box® Technology Platform
SILVER SPRING, Md.--(BUSINESS WIRE)--
Nuvilex, Inc. (OTCQB:NVLX), an emerging biotechnology provider of cell and gene therapy solutions through its ongoing acquisition of the assets of SG Austria, today discussed the proprietary Cell-in-a-Box technology, providing additional information about the science and technology behind the product.
Creation of Cell-in-a-Box was a technological concept over 20 years ago, originally designed for studying potential ways to create protection for cells and destruction of viruses through neutralizing antibody production. This concept soon became a reality and developed over time to have a wide variety of uses, some of which are still being realized. In the past decade, this concept has advanced to the point we can now fully address the enormous humanitarian value and applications as well as substantial clinical potential for treatment of an extremely diverse set of diseases.
The founding principle was to develop an artificial, semi-permeable capsule with sufficient permeability that oxygen and nutrients could reach encapsulated cells while cellular products could be released into the bloodstream or adjacent tissues. In addition, the capsule material had to remain robust, yet restrictive enough to exclude antibodies and immune cells. Otherwise, antibodies or immune cells would cause or allow recognition of the foreign capsule material, or the cells inside, and ultimately cause rejection and destruction of the live cellular implant.
After substantial research, initial capsules were created which offered strength and durability. The SG Austria Cell-in-a-Box patented encapsulation platform uses natural cotton, or cellulose sulphate, as the building blocks for the capsule itself, ultimately providing an optimum permeability balance. One of the best and most exciting properties was that the resulting capsules were non-allergenic. Additional intervening years included advances in purification, manufacturing, and chemistry of the cellulose sulphate to enable careful manipulation of the materials to allow specific size and characteristic capsules to be made.
Over time, advances in material science made it possible to vary the capsule size giving rise to a range from ~0.7 to 1.4 cm in diameter, about the size of the head of a pin. Further refinement has produced an extremely robust, yet flexible material. This capability enables varying numbers of cells to be placed inside each capsule, anywhere from a few cells to 10,000 or more cells. Even specific pore sizes can be created for the capsule based on the application. This unusual feature therefore provides an ability to limit or regulate what components or constituents can enter and exit the capsules.
During the past several months together SG Austria and Nuvilex have been provided an opportunity to make new advances in the encapsulation material, production and resulting capsules, some of which will be destined for use in future company activities. Thus, the encapsulation technology platform and its resulting capsule can thus be viewed as a robust, implantable device which provides strength, support, protection and durability for live cells inside yet flexible enough to allow transplantation into animals and humans without giving rise to an immune response and therefore they alleviate the need for immunosuppression.
Dr. Robert Ryan, Chief Executive Officer of Nuvilex, commented, Together with SG Austria, we are working to commercialize the Cell-in-a-Box technology platform through co-development activities and by establishing out-licensing deals with other companies that have potentially useful therapeutic cell systems that they would like to encapsulate and implant. Given the unique and advantageous properties of the Cell-in-a-Box technology, we anticipate seeing it incorporated into the cutting edge of medical treatments across a broad swath of unmet medical needs.
About Nuvilex
Nuvilex, Inc. (OTCQB:NVLX) is an emerging international biotechnology provider of live, clinically useful, encapsulated cells and services for the research and medical communities. Through substantial effort, all aspects of our corporate activities alone and in concert with SG Austria are moving toward completion and a strong future together. Our companys planned clinical offerings will include cancer, diabetes and other treatments using the companys industry-leading cell and gene therapy expertise and cutting edge, live-cell encapsulation.
Original post:
Nuvilex Highlights the Technology and Advances Behind the Cutting-Edge Cell-in-a-Box® Technology Platform
Biostem U.S., Corporation Continues Building Its Scientific and Medical Board of Advisors With Appointment of Leading …
CLEARWATER, FL--(Marketwire -03/19/12)- Biostem U.S., Corporation (OTCQB: BOSM.PK - News) (Pinksheets: BOSM.PK - News) (Biostem, the Company), a fully reporting public company in the stem cell regenerative medicine sciences sector, announced today the addition of Perinatologist Sanford M. Lederman, MD to its Scientific and Medical Board of Advisors (SAMBA).
As Chairman of the Department of Obstetrics and Gynecology at New York Methodist Hospital in Brooklyn, Dr. Lederman is consistently recognized by New Yorker Magazine's list of "Top Doctors" in New York. A specialist in high-risk pregnancy issues, Dr. Lederman has authored a number of scientific papers and is a highly regarded public speaker. He adds a very important dimension to the Biostem Scientific and Medical Board of Advisors by bringing specialized knowledge regarding the potential use of stem cell applications for the health of women and children.
Biostem President Dwight Brunoehler said, "Dr. Lederman is one of the most highly respected Obstetric and Gynecological physicians in the country. Sandy and I have worked together very actively on stem cell projects for over 18 years, including setting up a cord blood stem cell national donation system where all expectant moms have a chance to donate their baby's cord blood to benefit others."
Dr. Lederman stated, "Biostem's expansion plans mesh well with my personal interest in developing and advancing the use of non-controversial stem cells to improve the health of women and children. I have a particular interest in increasing the use of cord blood stem cells for in-utero transplant procedures, where stem cells are used to cure a potential life threatening disease such as sickle cell or thalassemia and other selective genetic disorders in a baby before it is even born."
Prior to accepting his current position with New York Methodist Hospital, Dr. Lederman was Residency Program Director and Vice Chairman of the Department of Obstetrics and gynecology at Long Island College Hospital in Brooklyn. At various times, he has served as a partner at Brooklyn Women's Health Care, President at Genetics East and Clinical Associate Professor at the State University of New York. He has served on the medical advisory board of several companies. He previously was Medical Director of Women's Health USA and was a founding member of the Roger Freeman Perinatal Society.
A graduate of Hunter College in New York, he received his initial medical training at Universidad Autonoma de Guadalajara School of Medicine. His initial internship was at New York Medical College in the Bronx. During the course of his career, Dr. Lederman has served and studied in various capacities at Long Island College Hospital in the Bronx, North Shore University Hospital in New York, Kings County Medical Center in Brooklyn, Long Beach Memorial Medical Center in California and the University of California at Irvine.
About Biostem U.S., CorporationBiostem U.S., Corporation (OTCQB: BOSM.PK - News) is a fully reporting Nevada corporation with offices in Clearwater, Florida. Biostem is a technology licensing company with proprietary technology centered around providing hair re-growth using human stem cells. The company also intends to train and license selected physicians to provide Regenerative Cellular Therapy treatments to assist the body's natural approach to healing tendons, ligaments, joints and muscle injuries by using the patient's own stem cells. Biostem U.S. is seeking to expand its operations worldwide through licensing of its proprietary technology and acquisition of existing stem cell related facilities. The company's goal is to operate in the international biotech market, focusing on the rapidly growing regenerative medicine field, using ethically sourced adult stem cells to improve the quality and longevity of life for all mankind.
More information on Biostem U.S., Corporation can be obtained through http://www.biostemus.com, or by calling Kerry D'Amato, Marketing Director at 727-446-5000.
Original post:
Biostem U.S., Corporation Continues Building Its Scientific and Medical Board of Advisors With Appointment of Leading ...
Stem cell therapy banned in Kuwait
(MENAFN - Arab Times) Ministry of Health (MoH) employees holding PhD degrees announced that they will participate in the sit-in demonstration carried out by the Labor Union of Health Ministry, reports Al-Seyassah daily.
In the press release, they said they are protesting against the fact that they are receiving the same salary scale and benefits as any other ministry employee with lower qualifications and if necessary, they are ready to even burn their PhD certificates at the sit-in to get the benefits they deserve according to their qualifications.
The sit-in will be carried out in front of Health Ministry headquarters in Sulaibikhat at 10 am on Tuesday, March 20, 2012.
The number of PhD holders has exceeded 100 considering the participation of PhD holders from other ministries as well.
Meanwhile, the MoH has banned stem cell therapy in the country until the committee tasked to set the standards for the treatment completes its work, reports Al-Anba daily quoting Director of Health License Department Dr Marzouq Al-Bader.
Al-Bader disclosed the ministry had earlier formed the committee to ensure the stem cell procedures are carried out in an appropriate manner to protect the patients. He added the ministry will also issue a decision soon to regulate the use of antibiotics in the private health sector.
Meanwhile, Al-Bader confirmed the ministry has endorsed around 51,000 female doctors in private hospitals and health centers. He said the ministry closely monitors the performance of female doctors and those found to have violated the law will be referred to the Medical Council for the necessary action.
On the issuance of licenses through the Internet, Al-Bader revealed his department has asked the ministry to activate the e-link system for this purpose.
He said the ministry has asked the Kuwait Municipality to issue permit for the construction of a building fit for the department's operations.
Meanwhile, the Medical Emergency Department at the Ministry of Health has affirmed its readiness to deal with emergency cases that may arise due to a series of dust storms engulfing the country.
Read more from the original source:
Stem cell therapy banned in Kuwait
K-State professor’s research hopes to ‘solve a medical mystery’
MANHATTAN A Kansas State University professor is doing research that may one day help make it easier to recover after spinal cord injury or to study neurological disorders.
Mark Weiss, professor of anatomy and physiology, is researching genetic models for spinal cord injury or diseases such as Parkinsons disease. He is developing technology that can advance cellular therapy and regenerative medicine a type of research that can improve animal and human health.
"Were trying to build tools, trying to build models that will have broad applications," Weiss said. "So if youre interested in neural differentiation or if youre interested in response after an injury, were trying to come up with cell lines that will teach us, help us to solve a medical mystery."
Weiss research team has perfected a technique to use stem cells to study targeted genetic modifications. The research is an important step in the field of functional genomics, which focuses on understanding the functions and roles of these genes in disease.
The researchers are creating several tools to study functional genomics. One such tool involves developing new ways to use fluorescent transporters, which make it easier to study proteins and their functions. These fluorescent transporters can be especially helpful when studying neurological disorders such as Parkinsons disease, stroke and spinal cord injury.
Here is the original post:
K-State professor’s research hopes to ‘solve a medical mystery’
Biostem U.S., Corporation Continues Building Its Scientific and Medical Board of Advisors With Appointment of Leading …
CLEARWATER, FL--(Marketwire -03/19/12)- Biostem U.S., Corporation (OTCQB: BOSM.PK - News) (Pinksheets: BOSM.PK - News) (Biostem, the Company), a fully reporting public company in the stem cell regenerative medicine sciences sector, announced today the addition of Perinatologist Sanford M. Lederman, MD to its Scientific and Medical Board of Advisors (SAMBA).
As Chairman of the Department of Obstetrics and Gynecology at New York Methodist Hospital in Brooklyn, Dr. Lederman is consistently recognized by New Yorker Magazine's list of "Top Doctors" in New York. A specialist in high-risk pregnancy issues, Dr. Lederman has authored a number of scientific papers and is a highly regarded public speaker. He adds a very important dimension to the Biostem Scientific and Medical Board of Advisors by bringing specialized knowledge regarding the potential use of stem cell applications for the health of women and children.
Biostem President Dwight Brunoehler said, "Dr. Lederman is one of the most highly respected Obstetric and Gynecological physicians in the country. Sandy and I have worked together very actively on stem cell projects for over 18 years, including setting up a cord blood stem cell national donation system where all expectant moms have a chance to donate their baby's cord blood to benefit others."
Dr. Lederman stated, "Biostem's expansion plans mesh well with my personal interest in developing and advancing the use of non-controversial stem cells to improve the health of women and children. I have a particular interest in increasing the use of cord blood stem cells for in-utero transplant procedures, where stem cells are used to cure a potential life threatening disease such as sickle cell or thalassemia and other selective genetic disorders in a baby before it is even born."
Prior to accepting his current position with New York Methodist Hospital, Dr. Lederman was Residency Program Director and Vice Chairman of the Department of Obstetrics and gynecology at Long Island College Hospital in Brooklyn. At various times, he has served as a partner at Brooklyn Women's Health Care, President at Genetics East and Clinical Associate Professor at the State University of New York. He has served on the medical advisory board of several companies. He previously was Medical Director of Women's Health USA and was a founding member of the Roger Freeman Perinatal Society.
A graduate of Hunter College in New York, he received his initial medical training at Universidad Autonoma de Guadalajara School of Medicine. His initial internship was at New York Medical College in the Bronx. During the course of his career, Dr. Lederman has served and studied in various capacities at Long Island College Hospital in the Bronx, North Shore University Hospital in New York, Kings County Medical Center in Brooklyn, Long Beach Memorial Medical Center in California and the University of California at Irvine.
About Biostem U.S., CorporationBiostem U.S., Corporation (OTCQB: BOSM.PK - News) is a fully reporting Nevada corporation with offices in Clearwater, Florida. Biostem is a technology licensing company with proprietary technology centered around providing hair re-growth using human stem cells. The company also intends to train and license selected physicians to provide Regenerative Cellular Therapy treatments to assist the body's natural approach to healing tendons, ligaments, joints and muscle injuries by using the patient's own stem cells. Biostem U.S. is seeking to expand its operations worldwide through licensing of its proprietary technology and acquisition of existing stem cell related facilities. The company's goal is to operate in the international biotech market, focusing on the rapidly growing regenerative medicine field, using ethically sourced adult stem cells to improve the quality and longevity of life for all mankind.
More information on Biostem U.S., Corporation can be obtained through http://www.biostemus.com, or by calling Kerry D'Amato, Marketing Director at 727-446-5000.
Breakthrough Beauty Procedure Using Your Own Stem Cells Offered in the Inland Empire
-- Allure Image Enhancement Among First to Offer the Stem Cell Facelift and PRP Therapy in the Inland Empire --
UPLAND, CA (PRWEB) March 19, 2012
Stem Cell Facelift with PRP Therapy provides an amazing full facial restoration and can simulate the effects of a face lift, brow lift, and total facial rejuvenation in one sitting. In addition, the benefits of the PRP Therapy with growth factors enhance stem cell survival, giving long lasting and potentially permanent results, says John Grasso MD, Medical Director at Allure Image Enhancement. I find these procedures to be an exciting new approach to the world of dermal fillers. Rather than using lab derived products, patients can enjoy the benefits of volume and longevity from their own cells.
Stem Cells often thought of as controversial and futuristic, are the latest beauty secret now available. Although injectable wrinkle treatments are very popular, there are many who shy away from putting anything foreign into their face. The two most common requests my patients ask me when it comes to anti-aging rejuvenation are: 1. Is there something natural I can use? and 2. Is there anything that lasts longer? Autologous fat transfer enhanced with stem cells and platelet rich plasma is going to change the world of Anti-Aging skin care, says Mina Grasso NP, owner of Allure Image Enhancement. For those who do not have adequate fat deposits or choose not to have autologous fat transfer can still benefit from the healing and repair response of various growth factors and cytokines with PRP alone or combined with manufactured fillers.
Fat transfer has been around for many years and may yield inconsistent results: 50% of the transferred fat usually breaks down within 2 years. Fat is an abundant source of mesenchymal stem cells. The difficulty is that in obtaining fat using Liposuction, up to half of the natural stem cells may be damaged. By adding additional autologous stem cells to the suctioned fat, it closer approximates the original concentration of stem cells in fat in the body and may aid the transplanted fat cells in surviving longer. Platelet Rich Plasma (PRP), which contains growth factors and cytokines, stimulates a repair response in soft tissue when added to the stem cell enhanced fat cells. The grafted fat and stem cells as well as surrounding local cells are activated by these growth factors to generate new growth that plumps up sagging areas. The growth factors enhance the quality of skin on the surface and repair sun damage and skin color irregularities.
Using this revolutionary new method, stem cells show promise in regenerating collagenproducing fibroblasts, cartilage, muscle and even bone cells. Research trials are under way using stem cells to repair other damaged tissue such as lungs, knees, and hearts and reverse neurological degenerative diseases. Stem Cell Facelift with PRP results in long-lasting volume in the treated area, and patients can start to see improvement in skin texture a healthy glow as soon as three weeks following treatment, with dramatic results occurring over a period of two to four months and lasting for years..
About Allure Image Enhancement, Inc.
Founded by Mina Grasso, RN, MSN, FNP-C, and her husband John Grasso MD. Allure Image Enhancement, Inc., for 15 years has served the Inland Empire with the latest in medical esthetics, providing services such as Botox Cosmetic, Restylane, Dysport, Juvderm, Latisse, Laser Hair Removal, Tattoo Removal, Laser Skin Rejuvenation, Vein Treatment, Body Shaping, and many more services.
Contact:
Nicholas Rodgers, CAC
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Breakthrough Beauty Procedure Using Your Own Stem Cells Offered in the Inland Empire
Stem cell therapy banned in Kuwait
(MENAFN - Arab Times) Ministry of Health (MoH) employees holding PhD degrees announced that they will participate in the sit-in demonstration carried out by the Labor Union of Health Ministry, reports Al-Seyassah daily.
In the press release, they said they are protesting against the fact that they are receiving the same salary scale and benefits as any other ministry employee with lower qualifications and if necessary, they are ready to even burn their PhD certificates at the sit-in to get the benefits they deserve according to their qualifications.
The sit-in will be carried out in front of Health Ministry headquarters in Sulaibikhat at 10 am on Tuesday, March 20, 2012.
The number of PhD holders has exceeded 100 considering the participation of PhD holders from other ministries as well.
Meanwhile, the MoH has banned stem cell therapy in the country until the committee tasked to set the standards for the treatment completes its work, reports Al-Anba daily quoting Director of Health License Department Dr Marzouq Al-Bader.
Al-Bader disclosed the ministry had earlier formed the committee to ensure the stem cell procedures are carried out in an appropriate manner to protect the patients. He added the ministry will also issue a decision soon to regulate the use of antibiotics in the private health sector.
Meanwhile, Al-Bader confirmed the ministry has endorsed around 51,000 female doctors in private hospitals and health centers. He said the ministry closely monitors the performance of female doctors and those found to have violated the law will be referred to the Medical Council for the necessary action.
On the issuance of licenses through the Internet, Al-Bader revealed his department has asked the ministry to activate the e-link system for this purpose.
He said the ministry has asked the Kuwait Municipality to issue permit for the construction of a building fit for the department's operations.
Meanwhile, the Medical Emergency Department at the Ministry of Health has affirmed its readiness to deal with emergency cases that may arise due to a series of dust storms engulfing the country.
Read this article:
Stem cell therapy banned in Kuwait
Japanese traditional therapy may help prevent inflammatory brain damage
Washington, Mar 19 (ANI): A compound used in traditional Japanese medicine, honokiol (HNK), plays a role in blocking key protein in inflammatory brain damage, a new study led by Indian origin scientist has suggested.
Microglia are the first line defence of the brain and are constantly looking for infections to fight off.
Overactive microglia can cause uncontrolled inflammation within the brain, which can in turn lead to neuronal damage.
New research shows that HNK is able to down-regulate the production of pro-inflammatory cytokines and inflammatory enzymes in activated microglia via Klf4, a protein known to regulate DNA.
Scientists from the National Brain Research Centre, Manesar, India, used lipopolysaccharide (LPS), a molecule present on the surface of bacteria, to stimulate an immune response from microglia cells.
LPS mimics the effect of a bacterial infection and the microglia cells spring into action, releasing proinflammatory cytokines, such as TNFa.
Activation of microglia also stimulates the production of nitric oxide (NO) and Cox-2, which co-ordinate the immune response, leading to inflammation.
However uncontrolled inflammation can lead to neuronal death and permanent brain damage.
Microglial inflammation is also observed in several neurodegenerative diseases including Alzheimer's disease, Parkinson's disease, and multiple sclerosis.
The team led by Dr Anirban Basu found that the inflammatory response was mediated by Klf4, a 'transcription' factor which binds directly to DNA to enhance or impede gene expression.
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Japanese traditional therapy may help prevent inflammatory brain damage
Gluttony gene that makes you eat more even when you are full identified
London, March 19 (ANI): Researchers have revealed how a mutation in a single gene is responsible for the inability of neurons to effectively pass along appetite suppressing signals from the body to the right place in the brain, which results in obesity caused by a voracious appetite.
Researchers at Georgetown University Medical Center suggested there might be a way to stimulate expression of that gene to treat obesity caused by uncontrolled eating.
The research team specifically found that a mutation in the brain-derived neurotrophic factor (Bdnf) gene in mice does not allow brain neurons to effectively pass leptin and insulin chemical signals through the brain.
In humans, these hormones, which are released in the body after a person eats, are designed to "tell" the body to stop eating. But if the signals fail to reach correct locations in the hypothalamus, the area in the brain that signals satiety, eating continues.
"This is the first time protein synthesis in dendrites, tree-like extensions of neurons, has been found to be critical for control of weight," said the study's senior investigator, Baoji Xu, Ph.D., an associate professor of pharmacology and physiology at Georgetown.
"This discovery may open up novel strategies to help the brain control body weight," he noted.
Xu has long investigated the Bdnf gene. He has found that the gene produces a growth factor that controls communication between neurons.
For example, he has shown that during development, BDNF is important to the formation and maturation of synapses, the structures that permit neurons to send chemical signals between them.
The Bdnf gene generates one short transcript and one long transcript. He discovered that when the long-form Bdnf transcript is absent, the growth factor BDNF is only synthesized in the cell body of a neuron but not in its dendrites. The neuron then produces too many immature synapses, resulting in deficits in learning and memory in mice.
Xu also found that the mice with the same Bdnf mutation grew to be severely obese.
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Gluttony gene that makes you eat more even when you are full identified
'Gluttony gene' may explain out-of-control appetite
A single gene's effect on the brain can result in non-stop eating, research has shown.
Scientists believe the "gluttony gene" may be responsible for cases of obesity caused by out-of-control appetite.
The Bdnf gene variant was studied in mice. It was found to prevent brain neurons from transmitting signals that tell the body it has eaten enough.
"This discovery may open up novel strategies to help the brain control body weight," said lead researcher Dr Baoki Xu, from Georgetown University Medical Centre in the United States.
Hunger and satiety, the sensation of "feeling full", are governed by a complex balance of hormonal and neuronal signals.
Two hormones in particular, leptin and insulin, released in the body after a meal play a key role.
Their chemical signals activate neurons in the hypothalamus region of the brain that trigger satiety. But if the connection is not made, the craving for food continues.
"Short" versions of the Bdnf gene block the leptin and insulin signals and prevent the "stop eating" message passing through the brain to the correct appetite-suppressing locations, say the scientists.
The research is reported in the journal Nature Medicine.
Bdnf makes a protein that is synthesised in dendrites, the branch-like "fingers" that project from nerve cells. Dendrites carry the synapses that neurons use to communicate to each other.
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'Gluttony gene' may explain out-of-control appetite
Tiverton centenarian recruited for genetics contest that could unlock secrets of longevity
At 102, Saul Belson has escaped many of the diseases that easily kill men 30 and 40 years his junior.
It may be luck, or the fact that he tried to eat healthy and was never a smoker or a drinker. Or, it might be genetics.
Belson is part of a set of those not just living, but living life well and with no or few health problems, over age 100.
Hes hoping to be selected as a genomic pioneer in a gene sequencing competition.
A hundred centenarians are being chosen worldwide to voluntarily contribute their DNA to the Archon Genomics X PRIZE competition, presented by Medco, a health care and research company based in New Jersey.
It is a competition of world-class teams from genotyping companies that will compete to quickly, accurately and affordably sequence the genomes of the 100 centenarians.
The grand prize to the winning genotyping company is $10 million. It is being funded by philanthropists and sponsors.
Ive always been very interested in science, Belson said. If Ive got something good, Im willing to share it.
Belson was born in London on Sept. 12, 1909, to Russian immigrant parents. They came to Chicago when he was 5 years old.
Belson spent most of his professional life working in the dental industry as a designer, making false teeth for Boston Dental in Chicago. He moved to Sakonnet Bay Manor in Tiverton six years ago after his wife, Dora, died, and to be closer to his son, Harold.
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Tiverton centenarian recruited for genetics contest that could unlock secrets of longevity
Gene variant in East Asians could explain resistance to cancer drugs
London, March 19 (ANI): Scientists have now found answer to why some patients fail to respond to some of the most successful cancer drugs.
Tyrosine kinase inhibitor drugs (TKIs) work effectively in most patients to fight certain blood cell cancers, such as chronic myelogenous leukemia (CML), and non-small-cell lung cancers (NSCLC) with mutations in the EGFR gene.
These precisely targeted drugs shut down molecular pathways that keep these cancers flourishing and include TKIs for treating CML, and the form of NSCLC with EGFR genetic mutations.
Now, a multi-national research team led by scientists at Duke-NUS Graduate Medical School in Singapore, working with the Genome Institute of Singapore (GIS), Singapore General Hospital and the National Cancer Centre Singapore, has discovered that there is a common variation in the BIM gene in people of East Asian descent that contributes to some patients' failure to benefit from these tyrosine kinase inhibitor drugs.
"Because we could determine in cells how the BIM gene variant caused TKI resistance, we were able to devise a strategy to overcome it," said S. Tiong Ong, M.B.B. Ch., senior author of the study and associate professor in the Cancer and Stem Cell Biology Signature Research Programme at Duke-NUS and Division of Medical Oncology, Department of Medicine, at Duke University Medical Center.
"A novel class of drugs called the BH3-mimetics provided the answer," he said.
"When the BH3 drugs were added to the TKI therapy in experiments conducted on cancer cells with the BIM gene variant, we were able to overcome the resistance conferred by the gene. Our next step will be to bring this to clinical trials with patients," Ong added.
Yijun Ruan, Ph.D., a co-senior author of this study and associate director for Genome Technology and Biology at GIS said: "We used a genome-wide sequencing approach to specifically look for structural changes in the DNA of patient samples. This helped in the discovery of the East Asian BIM gene variant. What's more gratifying is that this collaboration validates the use of basic genomic technology to make clinically important discoveries."
If the drug combination does override TKI resistance in people, this will be good news for those with the BIM gene variant, which occurs in about 15 percent of the typical East Asian population. By contrast, no people of European or African ancestry were found to have this gene variant.
"While it's interesting to learn about this ethnic difference for the mutation, the greater significance of the finding is that the same principle may apply for other populations," said Patrick Casey, Ph.D., senior vice dean for research at Duke-NUS and James B. Duke Professor of Pharmacology and Cancer Biology.
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Gene variant in East Asians could explain resistance to cancer drugs
California’s stem cell agency ponders a future without taxpayer support
LOS ANGELES, Calif. - The creation of California's stem cell agency in 2004 was greeted by scientists and patients as a turning point in a field mired in debates about the destruction of embryos and hampered by federal research restrictions.
The taxpayer-funded institute wielded the extraordinary power to dole out $3 billion in bond proceeds to fund embryonic stem cell work with an eye toward treatments for a host of crippling diseases. Midway through its mission, with several high-tech labs constructed, but little to show on the medicine front beyond basic research, the California Institute for Regenerative Medicine faces an uncertain future.
Is it still relevant nearly eight years later? And will it still exist when the money dries up?
The answers could depend once again on voters and whether they're willing to extend the life of the agency.
Several camps that support stem cell research think taxpayers should not pay another cent given the state's budget woes.
"It would be so wrong to ask Californians to pony up more money," said Marcy Darnovsky of the Center for Genetics and Society, a pro-stem cell research group that opposed Proposition 71, the state ballot initiative that formed CIRM.
Last December, CIRM's former chairman, Robert Klein, who used his fortune and political connections to create Prop 71, floated the possibility of another referendum.
CIRM leaders have shelved the idea of going back to voters for now, but may consider it down the road. The institute recently submitted a transition plan to Gov. Jerry Brown and the Legislature that assumes it will no longer be taxpayer-supported after the bond money runs out. CIRM is exploring creating a non-profit version of itself and tapping other players to carry on its work.
"The goal is to keep the momentum going," board Chairman Jonathan Thomas said in an interview.
So far, CIRM has spent some $1.3 billion on infrastructure and research. At the current pace, it will earmark the last grants in 2016 or 2017. Since most are multi-year awards, it is expected to stay in business until 2021.
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California's stem cell agency ponders a future without taxpayer support
California’s stem cell agency ponders its future
LOS ANGELES (AP) The creation of California's stem cell agency in 2004 was greeted by scientists and patients as a turning point in a field mired in debates about the destruction of embryos and hampered by federal research restrictions.
The taxpayer-funded institute wielded the extraordinary power to dole out $3 billion in bond proceeds to fund embryonic stem cell work with an eye toward treatments for a host of crippling diseases. Midway through its mission, with several high-tech labs constructed, but little to show on the medicine front beyond basic research, the California Institute for Regenerative Medicine faces an uncertain future.
Is it still relevant nearly eight years later? And will it still exist when the money dries up?
The answers could depend once again on voters and whether they're willing to extend the life of the agency.
Several camps that support stem cell research think taxpayers should not pay another cent given the state's budget woes.
"It would be so wrong to ask Californians to pony up more money," said Marcy Darnovsky of the Center for Genetics and Society, a pro-stem cell research group that opposed Proposition 71, the state ballot initiative that formed CIRM.
Last December, CIRM's former chairman, Robert Klein, who used his fortune and political connections to create Prop 71, floated the possibility of another referendum.
CIRM leaders have shelved the idea of going back to voters for now, but may consider it down the road. The institute recently submitted a transition plan to Gov. Jerry Brown and the Legislature that assumes it will no longer be taxpayer-supported after the bond money runs out. CIRM is exploring creating a nonprofit version of itself and tapping other players to carry on its work.
"The goal is to keep the momentum going," board Chairman Jonathan Thomas said in an interview.
So far, CIRM has spent some $1.3 billion on infrastructure and research. At the current pace, it will earmark the last grants in 2016 or 2017. Since most are multi-year awards, it is expected to stay in business until 2021.
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California's stem cell agency ponders its future
Billings game warden fights cancer complications
For about three days in January, Matt Ladd said he didnt know whether it was day or night, what was top or bottom.
I was probably as sick as Ive ever been, said Ladd, a Billings game warden, in a telephone interview from Seattle. As things got progressively worse and worse, I was really concerned about what was going on right then.
Ladd was headed to Seattle for stem cell bone marrow transplant surgery when an infection he was being treated for worsened. The infection started around a catheter inserted into his chest to deliver chemotherapy drugs. The chemo was battling Ladds acute myeloid leukemia and myelodysplastic syndrome, which was diagnosed in September. His bone marrow wasnt producing enough red blood cells.
The chemo worked. He was in remission and on his way to Seattle for a bone marrow transplant when the infection sent him into a rapid downward spiral. Because of the location of the catheter, the infection attacked his heart valves. During the struggle with the infection, his kidneys failed, his body retained water and he swelled up.
The infection scuttled plans for the bone marrow transplant surgery. With his kidneys failing, he had to undergo dialysis. As a final insult to his immune system, he had to take more chemotherapy since the surgery had been delayed and doctors feared the MDS might return.
My body and kidneys didnt respond well to the chemo, he said.
More than a month after he was scheduled to undergo surgery, Ladd is living in an apartment north of Seattle as family members rotate caretaking duties. His wife, Maureen, a math teacher at Billings West High, is holding down the fort at home, trying to maintain a sense of normalcy for their sons, Dylan, Logan and Jack.
What was going to be a short process has become a very long process, Maureen said.
Now the Ladds are waiting to hear whether Matt and his sister, Jessica Cook, will take part in a Seattle Cancer Center Alliance study of a new method of bone marrow transplantation. Since Ladds kidneys have been injured, he would normally have to have a reduced-intensity transplant used for the elderly and those with health issues, Maureen explained.
The experimental method would treat Cook, Ladds only sibling and a bone marrow transplant match, with Lipitor prior to the surgery. The cholesterol-lowering drug has shown promise in preventing reactions to transplants. If they are accepted for the study, it would mean a further delay of surgery, since Cook would have to be on the drug for a couple of weeks prior to the operation.
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Billings game warden fights cancer complications
13 years after a bone-marrow transplant, Katy Hubbell plans for college
For David and Mary Hubbell of Fisher, every day spent with their 18-year-old daughter, Katy, feels like a treasure.
Katy Hubbell was 4 years old in 1997 when doctors diagnosed her with a life-threatening bone marrow disease called aplastic anemia.
The disease prevented Katy's body from producing enough blood cells to keep her alive, and at least one doctor gave the Fisher girl a year to live.
But Katy and her family received new hope when she received a bone marrow transplant in Houston, followed by rounds of chemotherapy treatment. Community members offered their prayers and put on fundraisers to help pay for the family's bills.
Nearly 13 years after the life-changing procedure, Katy Hubbell is a senior at Fisher High School, where she has a part in the school play, completes anime drawings and plans to go to college.
"Katy continues to amaze us, and every day with this smiling girl is a gift," said Katy's mother, Mary Hubbell. "The experience changed us as people and made us realize that life is so short."
David Hubbell took his daughter to a pediatrician at Carle after she began receiving an abnormal number of bruises in 1997. Blood tests showed Katy's platelet level was dangerously low.
When her red and white cell counts started to fall, Katy was transferred to Children's Memorial Hospital in Chicago, where she was diagnosed with aplastic anemia, along with lymphoma.
"Patients with severe aplastic anemia have no immune system," Mary Hubbell said. "They can't be outside of a hospital environment, and any kind of infection can be very life-threatening."
Katy was kept at home to avoid infection, and visitors had to scrub themselves before entering the home.
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13 years after a bone-marrow transplant, Katy Hubbell plans for college
Bone-marrow transplant reverses Rett syndrome in mice
Rett syndrome, an autism spectrum disorder, causes problems with communication, coordination and movement.
AP Photo/The Idaho Statesman
A bone-marrow transplant can treat a mouse version of Rett syndrome, a severe autism spectrum disorder that affects roughly 1 in 10,00020,000 girls born worldwide (boys with the disease typically die within a few weeks of birth).
The findings, published today in Nature1, suggest that brain-dwelling immune cells called microglia are defective in Rett syndrome. The authors say their findings also raise the possibility that bone-marrow transplants or other means of boosting the brains immune cells could help to treat the disease.
If we show the immune system is playing a very important role in Rett patients and we could replace it in a safe way, we may develop some feasible therapies in the future, says Jonathan Kipnis, a neuroscientist at the University of Virginia School of Medicine in Charlottesville, who led the study.
Mutations in a single gene on the X chromosome,MECP2, cause the disease. Because they have only one X chromosome, boys born with the mutation die within weeks of birth. Girls with one faulty copy develop Rett syndrome.
Symptoms of Rett syndrome typically set in between 6 and 18 months of age. Girls with the disease have trouble putting on weight and often do not learn to speak. They repeat behaviours such as hand-washing and tend to have trouble walking. Many develop breathing problems and apnoea. Rett syndrome is classified as an autism spectrum disorder, and treatments focus on symptoms such as nutritional and gastrointestinal problems.
The MECP2 protein orchestrates the activity of many other genes, but how its alteration causes Rett syndrome is a mystery. I wish I knew, says Kipnis.
Neurons express more MECP2 than any other cell in the brain, and restoring the genes function in mouse neurons reverses some disease symptoms2.Recently, however, scientists have begun to suspect that other brain cells are also involved. Re-activating MECP2 in brain-support cells called astrocytes treats gait problems and anxiety in mice3.
Kipnis and his team focused on another class of brain cell microglia. They are the brains macrophages, a type of immune cell that sops up the detritus created by other cells. Studies have linked various immune cells to brain function, including repetitive and compulsive behaviour4, which led Kipnis to test whether replacing an immune system in mice lacking Mecp2 with cells containing the gene could improve symptoms.
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Bone-marrow transplant reverses Rett syndrome in mice
Physicians grow retinas from human blood-derived stem cells
Among the primary causes of adult-onset blindness are degenerative diseases of the retina, such as macular degeneration and retinitis pigmentosa. While some treatments have been developed that slow down the rate of degeneration, the clinical situation is still generally unsatisfactory. But if you could grow a new retina, transplant might be a possible cure. Now new hope is springing up from a research project at the University of Wisconsin-Madison in which scientists have succeeded in growing human retinal tissue from stem cells.
Pluripotent stem cells are capable of forming nearly any tissue in the body including retinal tissue. There has been great controversy about using pluripotent stem cells for human research or treatment, as historically the only source was to harvest them from early stage human embryos. Instead, for this work the researchers were able to regress mature body cells back into the pluripotent stem cells from which they originally grew. The process is called reprogramming, and is accomplished by inserting a set of proteins into the cell.
To produce the pluripotent stem cells, a white blood cell was taken from a simple blood sample. Genes which code for the reprogramming proteins are inserted into a plasmid, a nonliving ring of DNA. The cell is then infected with the plasmid, rather as a virus infects a cell, with the difference that the plasmid's genes do not become part of the cell's genetic structure. As the reprogramming proteins are formed within the cell by the plasmid DNA, the cell has a good chance of being reprogrammed into a pluripotent stem cell. This stem cell can then be encouraged to grow and differentiate into retinal tissue rather than make more blood cells.
Laboratory-grown human retinal tissue will certainly be used in testing drugs and to study degenerative diseases of the retina, and may eventually make available a new transplantable retina, or a new retina that is grown in place within the eye.
The figure above compares a schematic of the human retina with a photomicrograph of laboratory-grown retinal tissue. The new tissue has separated into at least three layers of cells, with rudimentary photosensitive rods or cones (red) at the top of the picture, and nerve ganglia (blue-green) at the bottom. The blue cells in the middle layer are likely bipolar retinal cells. The structure of the lab-grown retinal tissue is similar to that of a normal human eye, as can be seen by comparison with the retina schematic. The cells also formed synapses, which provide the channels through which optical information flows to the brain.
"We don't know how far this technology will take us, but the fact that we are able to grow a rudimentary retina structure from a patient's blood cells is encouraging, not only because it confirms our earlier work using human skin cells, but also because blood as a starting source is convenient to obtain," says Dr. David Gamm, pediatric ophthalmologist and senior author of the study. "This is a solid step forward." Further steps are eagerly awaited by those living in the dark.
Source: University of Wisconsin School of Medicine and Public Health
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Physicians grow retinas from human blood-derived stem cells
Georgetown University Medical Centre: Scientists discover 'greedy gene¿ that makes you eat more even when you are full
Could lead to treatments for obesity
By Tamara Cohen
PUBLISHED: 14:28 EST, 18 March 2012 | UPDATED: 14:28 EST, 18 March 2012
The secret to staying slim may be all in your genes.
Scientists believe they have found the gluttony gene which fails to tell your brain when you are full.
In tests on mice, they showed that a mutation on a single gene broke down communication in the body and led to non-stop eating and rapid weight gain.
Gut buster: Scientists believe they have uncovered a gene which makes you eat even when are full because it breaks down communication between the body and the brain
But the good news is, they hope identifying the gene could help with treatments for obesity which affects nearly one in four adults in the UK.
Researchers at Georgetown University Medical Centre in the U.S. studied variations in the Bdnf gene in mice.
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Georgetown University Medical Centre: Scientists discover 'greedy gene¿ that makes you eat more even when you are full