Volume 9, Issue 1 Summary

A groundbreaking study on repairing damaged heart tissue through stem cell therapy has given patients hope that they may again live active lives. An international team of Mayo Clinic researchers and collaborators has done it by discovering a way to regenerate heart tissue.

Clinical trial participant Miroslav Dlacic near his home in Belgrade.

Andre Terzic, M.D., Ph.D., is the Michael S. and Mary Sue Shannon Family Director, Center for Regenerative Medicine, and the Marriott Family Professor of Cardiovascular Diseases Research at Mayo Clinic in Minnesota.

Miroslav Dlacic's heart attack changed his life drastically and seemingly forever. His damaged heart made him too tired to work in his garden or to spend much time at his leather-accessories workshop in Belgrade, Serbia. Like many patients with heart problems, Dlacic, who is 71, thought he would live his remaining years in a weakened condition.

Then, a groundbreaking Mayo Clinic trial of stem cell therapy to repair damaged heart tissue changed his life again this time for the better.

Dlacic agreed to participate in the Mayo Clinic stem cell trial through the hospital in Serbia where he is treated. Two years later, Dlacic is able to walk again without becoming worn out.

"I am more active, more peppy," he says. "I feel quite well."

"It's a paradigm shift," says Andre Terzic, M.D., Ph.D., director of Mayo Clinic's Center for Regenerative Medicine and senior investigator of the stem cell trial. "We are moving from traditional medicine, which addresses the symptoms of disease, to being legitimately able to cure disease."

For decades, treating patients with cardiac disease has typically involved managing heart damage with medication. It's a bit like driving a car without fixing a sluggish engine you manage the consequences as best you can and learn to live with them.

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Regenerating heart tissue through stem cell therapy ...

Updated: 10/12/2014 4:19 PM Created: 10/11/2014 11:51 PM WNYT.com By: Steve Flamisch

LOUDONVILLE Four years ago, Doris Calderon was diagnosed with a form of blood cancer called Myelodysplastic Syndrome (MDS). Doctors told her she needed a bone marrow transplant.

"They were looking for a donor because I had no siblings that could match, and my children are not a good match," said Calderon, of Halfmoon. "We didn't have anybody, so we just figured we'd wait."

More than 800 miles away, in Illinois, a total stranger made a fateful decision later that year. Chad LaMont wanted to donate blood to at his employers "Good Deed Day," but his iron was too low.

LaMont went over to the "Be The Match" table and signed up to be a marrow donor, instead. He turned out to be the match for Calderon, later donating the stem cells and T-cells that saved her life.

"Ive encouraged so many people to get on the list because you never know who you can save, and whose life you can change at the end of the day," LaMont said.

On Friday, Calderon and LaMont met for the first time at Albany International Airport. On Saturday, they took part in the Light the Night Walk at Siena College, raising money to fight blood cancer.

"To have the man responsible for saving my mother's life with us on such a momentous occasion is just such a blessing," said Calderons daughter, Lisa Calderon-Haun. "He couldn't be more wonderful."

Calderon has been in remission for more than two years and her prognosis is good. To learn more about how to become a bone marrow donor, visit "Be The Match."

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MIAMI (PRWEB) October 13, 2014

Regenestem, one of the largest membership networks of regenerative medicine clinics worldwide, has announced the launch of a new stem cells clinic in Antofagasta, Northern Chile. The clinic, to be headed by renowned stem cell specialists DRA Maria G. Soledad Gonzalez and Angel Gallegos Freire, M.D., will provide the latest advancements in stem cell treatments and protocol for a variety of eye conditions and diseases including macular degeneration and retinitis pigmentosa, as well as the latest anti-aging and aesthetic treatments and therapies.

Soledad Gonzalez specializes in opthamology at the Laser Surgery Clinic in Higher Vision of Antofagasta since 2003, where he focuses on refractive surgery to treat conditions like myopia, hyperopia, astigmatism and presbyopia. He incorporated minimally invasive aesthetic medicine protocols to his practice in 2012 and specializes in the harvest, preparation, activation and application of stem cell therapies for a number of chronic degenerative diseases.

Gallegos Freire, Medical Director, Policlinico Bhpbilliton M: BHP Billiton Spencea in Ubicacin, Chile, specializing in aesthetic and anti-aging stem cell medicine. Gallegos Freire in an active member of the Argentina Society of Aesthetic Medicine (SOARME), Institutional Member of the Medical Association of Argentina (AMA), the Pan-American Society of Aesthetic Medicine (PASAM) and the Antiaging & Aesthetic Medicine International Society (AAAMISO).

The Antofagasta Regenestem clinic is the companys third international stem cell treatment center opened since Global Stem Cells Group opened the Regenestem Asia Clinic in Manila, Philippines in June and the Regenestem Mexico Clinic in Villahermosa Tabasco. These new, state-of-the-art regenerative medicine facilities join the company's growing global presence that includes clinics in Miami, New York, Los Angeles and Dubai. Regenestem Asia facility marks the first Regenestem brand clinic in the Philippines.

The Global Stem Cells Group and Regenestem are committed to providing the highest of standards in service and technology, expert and compassionate care, and a philosophy of exceeding the expectations of their international patients.

For more information, visit the Regenestem website, email info(at)regenstem(dot)com, or call 305-224-1858.

About Regenestem:

Regenestem, a division of the Global Stem Cells Group, Inc., provides stem cell treatments for a variety of diseases and conditions including arthritis, autism, chronic obstructive pulmonary disease (COPD), diabetes and multiple sclerosis at various facilities worldwide. Each Regenestem clinic offers an international staff experienced in administering the leading cellular therapies available.

Regenestem is certified for the medical tourism market, and staff physicians are board-certified or board-eligible. Regenestem clinics provide services in more than 10 specialties, attracting patients from the United States and around the world.

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Regenestem Names Renowned Stem Cell Specialists to Launch New Regenerative Medicine Clinic in Antofagasta, Northern ...

MIAMI (PRWEB) October 13, 2014

Global Stem Cells Group, Inc. has launched a new corporate website (http://www.stemcellsgroup.com) designed to better highlight its six stem cell-related operating companies and provide up-to-date information on upcoming conferences, corporate news, stem cell research findings and more.

The website offers detailed information on each stem cell division including:

For more information about any of the Global Stem Cells Group operating companies, visit the Global Stem Cells Group website, email bnovas(at)regenestem(dot)com, or call 305-224-1858.

About Global Stem Cells Group:

Global Stem Cells Group, Inc. is the parent company of six wholly owned operating companies dedicated entirely to stem cell research, training, products and solutions. Founded in 2012, the company combines dedicated researchers, physician and patient educators and solution providers with the shared goal of meeting the growing worldwide need for leading edge stem cell treatments and solutions.

With a singular focus on this exciting new area of medical research, Global Stem Cells Group and its subsidiaries are uniquely positioned to become global leaders in cellular medicine.

Global Stem Cells Groups corporate mission is to make the promise of stem cell medicine a reality for patients around the world. With each of GSCGs six operating companies focused on a separate research-based mission, the result is a global network of state-of-the-art stem cell treatments.

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Global Stem Cells Group Launches New Corporate Website

Beverly Hills, California (PRWEB) October 13, 2014

Top Beverly Hills and LA orthopedic doctor, Dr. Raj, is now offering platelet rich plasma therapy for sports injuries and all types of degenerative arthritis. The treatment option has recently been added to Dr. Raj's regenerative medicine therapies such as bone marrow derived stem cell procedures and amniotic derived stem cell therapies. Call (310) 247-0466 for more information and scheduling.

Platelet Rich Plasma Therapy, known as PRP for short, has been increasing in popularity due to the success shown in several research studies. There was a recent study out of HSS showing amazing outcomes for degenerative knee arthritis, with preservation of cartilage and significant pain relief. Results with rotator cuff tendonitis, tennis elbow, plantar fasciitis and knee/achilles tendonitis have also been excellent as well.

Athletes in all types of sports have benefited from PRP therapy including golf, tennis, basketball, football, baseball and more. Whether or not an athlete is professional or amateur, the PRP treatment can be instrumental in helping patients avoid surgery and get back on the field quickly.

PRP therapy at Beverly Hills Orthopedic Institute involves an outpatient procedure that begins with a simple blood draw from the patient's arm of approximately 30 to 60 millileters. The blood is placed into a centrifuge and spun rapidly for 15-20 minutes. The platelets become concentrated in the middle layer, and this is what is utilized for the platelet rich plasma therapy in Beverly Hills.

The PRP therapy is injected under sterile conditions into the painful area. Results are typically seen over the ensuing weeks. Along with the PRP treatment, Dr. Raj also offers bone marrow and amniotic stem cell therapy. Typically, the best regenerative medicine therapy option is decided upon in conjunction with the patient.

Dr. Raj is a Double Board Certified Beverly Hills and Los Angeles orthopedic surgeon, who is also an ABC News Medical Correspondent along with a WebMD expert. For those interested in PRP and stem cell therapy Beverly Hills trusts, call (310) 247-0466.

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Top Beverly Hills Orthopedic Doctor, Dr. Raj, Now Offering Platelet Rich Plasma Therapy for All Sports Injuries and ...

MADISON Winning the State Cow of the Year award at the 2014 World Dairy Expo on Oct. 3 was only the second biggest thing that happened while the Peterson family of Cashton was in Madison that week.

The most important came a few days later, on the west side of the University of Wisconsin-Madison campus, when stem cells from Kurt Petersons bone marrow began flowing into the blood stream of his brother, giving Scot Peterson, 45, a new immune system and a good shot of beating adult acute lymphoblastic leukemia (ALL).

Hes a man of few words, says Scot, of his younger brother, Kurt, 40. But you know he really loves you to do something like this.

Its been a good news/bad news kind of a year for the Peterson brothers, who co-own the Coulee Crest farm in the rolling hills of Monroe County, and the states queen of cows, Coulee Crest Nick Lorilyn. Guernseys are the caramel brown and white cows known for the richness of their milk. And Lorilynn won the crown because she, her mother, and one of her daughters have each produced 40,000 pounds of milk in a year.

The last weekend in June, the National Guernsey Association held its national convention in La Crosse. The Petersons hosted a tour of their farm and a dinner event for 475 convention goers at their farm.

Scot Peterson, a burly guy who competed in Sweden for the world tug-of-war championship when he was younger, felt pains in his legs, odd bruises, and general exhaustion.

I thought I was tired from all the work of getting the farm ready, Scot Peterson says. He got through the convention and the national sale on June 30. That was another high point for the farm, with one of Lorilyns daughters topping the sale at $19,000.

By the next day, there was bad news.

By the middle of the day on July 1, I was in the hospital, finding out my diagnosis of leukemia, he recalls.

His oncologist, Dr. Wayne Bottner of Gundersen Health System in La Crosse, told Scot that he had a type of leukemia, ALL, in which the bone marrow makes too many lymphocytes, a type of white blood cell. ALL is more common and easier to treat in children. Adults fare better if they can find a match that allows them to have a stem cell transplant from a donors bone marrow. So Bottner referred Peterson to the UW Carbone Comprehensive Cancer Center in Madison.

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Cashton man goes from winning state award to battling cancer

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Newswise Four scientists from the Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research at UCLA have received a National Institutes of Health (NIH) Director's New Innovator Award that will forward revolutionary stem cell and neuro-science in medicine. The four UCLA researchers were among only 50 scientists nationwide to receive the New Innovator Award, the most of any institution represented.

Each recipient received a $2.3M award for their respective projects. These included Dr. Reza Ardehali, assistant professor of cardiology, for his research investigating novel ways to use stem cells to regenerate heart tissue; Dr. Elissa Hallem, assistant professor of microbiology, immunology and molecular genetics, for her work studying interactions between animal parasites and their hosts to foster the further understanding of human parasitic diseases; Dr. Sririam Kosuri, assistant professor of chemistry and biochemistry, for his project developing new biological system technologies to solve outstanding problems in gene regulation; and Dr. Lili Yang, assistant professor of microbiology, immunology and molecular genetics, for her work developing a new method to track special immune cells for use in new cellular therapies.

"These New Innovator Award grants are an important acknowledgement of our cutting-edge research and will help our faculty drive the revolutionary advances we are seeing in stem cell and neuro-science," said Dr. Owen Witte, professor and director of the Broad Stem Cell Research Center. "Every cellular therapy that reaches patients must begin in the laboratory with novel ideas and experiments that will lead us in new directions in medicine and ultimately improve human life. That makes these awards invaluable to our research effort."

The NIH Director'sNew Innovator Award is designed specifically to support unusually creative investigators with highly innovative research ideas at an early stage of their career. The award seeks to support exceptionally creative new scientists whose research complements ongoing efforts by NIH.

Dr. Reza Ardehali: Unlocking the Secrets to Regenerating Heart Tissue

Dr. Ardehali's cutting-edge work focuses on both human embryonic stem cells and induced pluripotent stem cells, known as human pluripotent stem cells (hPSC), to provide insights into the mechanisms involved in the differentiation and specification of heart cells. hPSC have the unique ability to become any cell type in the body. His lab recently identified several novel surface markers that can highly enrich early cardiovascular progenitor cells. When delivered into functioning human hearts that are transplanted in laboratory conditions, the progenitor cells integrate structurally and functionally into the host myocardium. These studies established the basis for future hPSC-based cardiac therapy.

Dr. Ardehali and his colleagues were also the first to directly measure limited division in the cells that make up heart muscle (cardiomyocytes), proving that cardiomyocytes divide and that such cell division is rare. This discovery resolves an important controversy over whether the heart muscle has the power to regenerate and is critical for future research that may lead to regenerating heart tissue to repair damage caused by disease or heart attack.

His 2013, California Institute for Regenerative Medicine (CIRM), the state's stem cell research agency, New Faculty Physician Scientist Translational Research Award allowed Dr. Ardehali to initiate the preclinical studies on stem cell based therapies for heart disease that were pivotal for his success in the 2014 New Innovator Award competition. The NIH grant affirms the critical success of the project-to-date, and emphasizes the creativity of Dr. Ardehali's research and its potential to have a significant impact on the creation of novel regenerative approaches to treat heart disease.

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Four UCLA Scientists Receive Prestigious Innovator Award for Pioneering Research Using Stem Cells

96 Year Old Women gets Stem Cell Therapy
96 Year Old Women who suffered from Osteoarthritis uses Stem Cells and no longer needs to use her walker. Dr. Lox | http://www.drloxstemcells.com | 844-440-8503.

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Can brain damage caused during birth be ever reversed? Is it possible to repair the damaged brain tissues among children, who suffer from Cerebral Palsy (CP)?

So far, the treatment option for CP is to manage the symptoms of the ailment. However, in recent times, scientists and researchers worldwide have started to explore stem cell therapy as a potential treatment option for CP patients.

Can stem cells reverse the brain damage, which is the sole cause for CP among children? Our research on over 100 CP patients and stem cell therapy has been very encouraging. The patients, who underwent stem cell therapy, have displayed huge improvement in CP symptoms, says Professor and Head of Neurosurgery, LTM Medical College, Mumbai, Alok Sharma.

The neurosurgeon, who is taking part in an international conference on CP in Hyderabad this weekend, said that doctors are not concentrating on treating the brain damage.

The current treatment options available to help patients are only to mange symptoms and nobody tries to repair the underlying damage to the brain tissue. Therefore, developing a standard therapeutic approach for CP through stem cells is the need of the hour, he said.

The results from the stem cell therapy on CP patients conducted by Dr. Aloks team were recently published in Neurogens chapter on Stem cell therapy for cerebral palsy A Novel Option in a book titled Cerebral Palsy Challenges For the Future. According to the neurosurgeon, the patients after therapy had improvements in their speech, balance, upper and lower limb activity and movement.

While for stem cell research, many prefer cord blood banking, Dr. Alok pointed out that they have used stem cells from the adults derived from the bone marrow. The transplanted stem cells have the ability to migrate to the area of the damaged tissue in the brain and home-in on those affected areas to help repair the damage. Stem cells release substance that stimulates natural growth, which decreases the process of damage of the brain, Dr. Alok explained.

The researcher, who has started NeuroGen Brain and Spine Institute in Mumbai to conduct stem cell research, pointed out that stem cell therapy and other rehabilitation programmes should be encouraged for the benefit of CP patients. The positive changes that we recorded in our patients were not just restricted to their symptoms but also constructive change in brain metabolism observed through PET-CT scans, he explained. Dr. Alok Sharma can be reached at: alok276@gmail.com

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Fighting CP through stem cell therapy

10.10.2014 - (idw) Fraunhofer-Gesellschaft

From 9-10 October 2014 around 200 scientists met at the Leipzig Fraunhofer Institute for Cell Therapy and Immunology for the ninth Fraunhofer Life Science Symposium. Held every two years, this year the event focused on the theme "Medicinal Cell Products and Stem Cells for Medicinal Applications". In recent years biomedical research has revealed numerous promising new approaches for the prevention and treatment of serious illnesses. The issue of stem cells plays a key role in this. With the symposium the Fraunhofer IZI offers international scientists a platform on which they can discuss the latest developments in this field.

The scientific program encompasses three major subject areas: production, manufacture and application. In the first section a paper presented by Sarah Ferber (Centre for Stem Cells, Regenerative Medicine and Tissue Engineering, Sheba Medical Center, Tel Hashomer, Israel) was one major point of interest: "Reprogramming the endocrine pancreas; autologous cell replacement therapy for diabetic patients". She spoke about the possibilities for transforming liver cells into insulin-producing cells. In the future this method could possibly be used to help patients with type 1 diabetes, where the misdirected immune system destroys the body's own insulin-producing beta cells of the pancreas.

The Fraunhofer Life Science Symposium brings together up to 200 participants from academic and clinical institutions to discuss the various focal points concerning new technologies, trends and developments. It is organized by the Fraunhofer Institute for Cell Therapy and Immunology IZI. For further information see http://www.fs-leipzig.com. Weitere Informationen:http://www.fs-leipzig.comhttp://www.izi.fraunhofer.de

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Experts discuss new developments in the field of stem cell research and cell therapy

Ageless Derma Apple Stem Cell Skincare
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CAMBRIDGE, Mass., Oct. 9 (UPI) -- Patients with type 1 diabetes lack the insulin-producing cells that keep blood glucose levels in check. Currently, these patients must use insulin pumps or daily hormone injections to keep levels stable.

But in a recent breakthrough in laboratories at Harvard University, researchers came upon a new technique for transforming stem cells into pancreatic beta cells that respond to glucose levels and produce insulin when necessary. The breakthrough could lead to new less invasive, more hands-off treatment for diabetes.

Remarkably, the new technique -- a complex process which involves turning on and off specific genes and takes about 40 days and six precise steps to complete -- was replicated not only on embryonic stem cells but also on human skin cells reprogrammed to act in a stem-cell-like manner. This revelation allows scientists to produce millions of insulin-producing cells while avoiding the ethical dilemmas attached to traditional stem cell research.

Previous attempts to convert stem cells into insulin-producers have proven moderately successful, but these cells mostly produced insulin at will, unable to adjust their output on the fly. The latest techniques -- developed by Douglas Melton, co-director of the Harvard Stem Cell Institute, and his research colleagues -- produce insulin cells that react to glucose spikes by upping production, and lowering insulin output when there's not excess sugar to break down.

The breakthrough has already shown significant promise when used on lab mice. Diabetic mice who received a transplant of the stem cell beta cells had improved blood sugar levels, and were shown to be capable of breaking down sugar.

"We can cure their diabetes right away -- in less than 10 days," Melton told NPR. "This finding provides a kind of unprecedented cell source that could be used for cell transplantation therapy in diabetes."

But there's still one major issue. For reasons doctors still don't understand, the beta cells in humans with diabetes are attacked by the body's immune system. Researchers like Melton still have to figure out a way to protect the new beta cells from being killed -- otherwise the breakthrough won't become anything more than another short-term solution.

"It's taken me 10 to 15 years to get to this point, and I consider this a major step forward," Melton told TIME. "But the longer term plan includes finding ways to protect these cells, and we haven't solved that problem yet."

2014 United Press International, Inc. All Rights Reserved. Any reproduction, republication, redistribution and/or modification of any UPI content is expressly prohibited without UPI's prior written consent.

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Harvard researchers grow insulin-producing stem cells

October 10, 2014 - 17:56 AMT

PanARMENIAN.Net - In what could be a major breakthrough for diabetes treatment, scientists have discovered a way to drastically alter human embryonic stem cells, transforming them into cells that produce and release insulin, RT said.

Developed by researchers at Harvard University, the innovative new technique involves essentially recreating the formation process of beta cells, which are located in the pancreas and secrete insulin. By stimulating certain genes in a certain order, the Boston Globe reports that scientists were able to charm embryonic stem cells and even altered skin cells into becoming beta cells.

The whole process took 15 years of work, but now lead researcher Doug Melton says the team can create hundreds of millions of these makeshift beta cells, and theyre hoping to transplant them into humans starting in the next few years.

"We are reporting the ability to make hundreds of millions of cells the cell that can read the amount of sugar in the blood which appears following a meal and then squirts out or secretes just the right amount of insulin," Melton told NPR.

There are 29.1 million people in the United States believed to have diabetes, according to statistics by the Centers for Disease Control and Prevention dating back to 2012. Thats 9.3 percent of the entire population.

Currently, diabetes patients must rely on insulin shots to keep their blood-sugar levels stable, a process that involves continual monitoring and attentiveness. Failure to efficiently control these levels can cause some patients to go blind, suffer from nerve damage and heart attacks, and even lose limbs. If Meltons beta cell creation process can be successfully applied to humans, it could eliminate the need for such constant check-ups, since the cells would be doing all the monitoring. Already, there are positive signs moving forward: the transplanted cells have worked wonders on mice, quickly stabilizing their insulin levels.

"We can cure their diabetes right away in less than 10 days," Melton said to NPR. "This finding provides a kind of unprecedented cell source that could be used for cell transplantation therapy in diabetes."

With mice successfully treated, the team is now working with a scientist in Chicago to put cells into primates, the Globe reported.

Even so, significant obstacles remain, particularly for those who have Type 1 diabetes. With this particular form of the disease, the human immune system actually targets and destroys insulin-producing beta cells in the pancreas, so Meltons team is looking into encasing cells inside of a protective shell in order to ensure their safety.

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Harvard University scientists alter stem cells to make insulin

Research into a cure for diabetescould result in an end to insulin injections It has beenhailed as the biggest medical breakthrough since antibiotics Harvard researcher Doug Melton promised his children he'd find a cure Treatment involves making insulin-producing cells from stem cells Scientistshope to have human trials under way within a 'few years'

By Fiona Macrae for the Daily Mail

Published: 17:41 EST, 9 October 2014 | Updated: 04:45 EST, 10 October 2014

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Scientists have hailed stem-cell research into a cure for diabetes as potentially the biggest medical breakthrough since antibiotics.

It could result in an end to insulin injections, and to the disabling and deadly complications of the disease, such as strokes and heart attacks, blindness and kidney disease.

The treatment, which involves making insulin-producing cells from stem cells, was described as a 'phenomenal accomplishment' that will 'leave a dent in the history of diabetes'.

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Could this stem cell breakthrough offer an end to diabetes?

StemCells Inc. ( STEM ) announced that it has commenced a phase II proof-of-concept study, Pathway, which will use the company's proprietary human neural system stem cells (HuCNS-SC) platform for treating patients suffering from cervical spinal cord injury (SCI). The company's phase II trial is titled "Study of Human Central Nervous System (CNS) Stem Cell Transplantation in Cervical Spinal Cord Injury."

The randomized, controlled, single-blind study will evaluate the safety and efficacy of transplanting HuCNS-SC cells into patients with traumatic injury in the cervical region of the spinal cord. The study will evaluate patients for a period of 12 months post-enrollment.

We remind investors that earlier in the year, the company had reported encouraging interim results from a phase I/II thoracic SCI study. StemCells intends to present final data from the phase I/II study in mid-2015.

According to the press release issued by StemCells, nearly 1.3 million people in the U.S. have reported paralysis due to an SCI and about 56% of spinal cord injuries occur in the cervical region. Upon approval, the new treatment will provide significant benefits to patients suffering from cervical SCI considering the present lack of effective treatments.

Meanwhile, StemCells is currently evaluating HuCNS-SC cells for several other indications including dry age-related macular degeneration (AMD), Pelizeaus-Merzbacher disease (PMD) and Alzheimer's disease.

We expect investor focus to remain on pipeline updates.

StemCells currently carries a Zacks Rank #3 (Hold). Some better-ranked stocks in the health care sector include Emergent BioSolutions, Inc. ( EBS ), Ligand Pharmaceuticals Inc. ( LGND ) and Medivation, Inc. ( MDVN ). All three carry a Zacks Rank #1 (Strong Buy).

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StemCells Starts Phase II Cervical Spinal Cord Injury Study - Analyst Blog

October 8, 2014

Image Caption: New genetic barcoding technology allows scientists to identify differences in origin between individual blood cells. Credit: Camargo Lab

Provided by Joseph Caputo, Harvard University

New technology that tracks the origin of blood cells challenges scientific dogma

A 7-year-project to develop a barcoding and tracking system for tissue stem cells has revealed previously unrecognized features of normal blood production: New data from Harvard Stem Cell Institute scientists at Boston Childrens Hospital suggests, surprisingly, that the billions of blood cells that we produce each day are made not by blood stem cells, but rather their less pluripotent descendants, called progenitor cells. The researchers hypothesize that blood comes from stable populations of different long-lived progenitor cells that are responsible for giving rise to specific blood cell types, while blood stem cells likely act as essential reserves.

The work, supported by a National Institutes of Health Directors New Innovator Award and published in Nature, suggests that progenitor cells could potentially be just as valuable as blood stem cells for blood regeneration therapies.

This new research challenges what textbooks have long read: That blood stem cells maintain the day-to-day renewal of blood, a conclusion drawn from their importance in re-establishing blood cell populations after bone marrow transplantsa fact that still remains true. But because of a lack of tools to study how blood forms in a normal context, nobody had been able to track the origin of blood cells without doing a transplant.

Boston Childrens Hospital scientist Fernando Camargo, PhD, and his postdoctoral fellow Jianlong Sun, PhD, addressed this problem with a tool that generates a unique barcode in the DNA of all blood stem cells and their progenitor cells in a mouse. When a tagged cell divides, all of its descendant cells possess the same barcode. This biological inventory system makes it possible to determine the number of stem cells/progenitors being used to make blood and how long they live, as well as answer fundamental questions about where individual blood cells come from.

Theres never been such a robust experimental method that could allow people to look at lineage relationships between mature cell types in the body without doing transplantation, Sun said. One of the major directions we can now go is to revisit the entire blood cell hierarchy and see how the current knowledge holds true when we use this internal labeling system.

People have tried using viruses to tag blood cells in the past, but the cells needed to be taken out of the body, infected, and re-transplanted, which raised a number of issues, said Camargo, who is a member of Childrens Stem Cell Program and an associate professor in Harvard Universitys Department of Stem Cell and Regenerative Biology. I wanted to figure out a way to label blood cells inside of the body, and the best idea I had was to use mobile genetic elements called transposons.

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Scientists Develop Barcoding Tool For Stem Cells

Ageless Derma Anti Aging Skin Care
This active ingredient won the Best Active Ingredient prize in European Innovation in 2008. Stem Cells derived from a rare Swiss Apple are part of the revolutionary technological designed...

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Hamish Gilbert - Development of a Stem Cell Therapy forRepair of the Degenerate Intervertebral Disc
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Hamish Gilbert - Development of a Stem Cell Therapy forRepair of the Degenerate Intervertebral Disc - Video

Arthritis of shoulder; results four years after stem cell therapy by Harry Adelson, N.D.
Heavy discusses his outcome four years out from his first bone marrow stem cell treatment for his arthritic shoulders and torn rotator cuffs by Harry Adelson, N.D. http://www.docereclinics.com.

By: Harry Adelson, N.D.

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Arthritis of shoulder; results four years after stem cell therapy by Harry Adelson, N.D. - Video