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New Isotope Cluster Could Lead To Better Understanding Of Atmospheric Carbon Dioxide
A team of researchers has discovered an unexpected concentration of a certain isotopic molecule in parts of the stratosphere that could have implications for understanding the carbon cycle and its response to climate change.
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Hemophilia A Mice Benefit From Gene Therapy
Hemophilia A is an inherited bleeding disease caused by a lack of the blood clotting protein Factor VIII. It had been hoped that gene therapy would provide a breakthrough in treatment, but the most common gene therapy approach has had little clinical success. However, a team of researchers, at the University of Minnesota Medical School, Minneapolis, has now developed a new approach to target genes specifically to mouse liver sinusoidal endothelial cells (the cells that are the main of Factor VIII) and used it to provide long-term expression of Factor VIII in hemophilia A mice, markedly reducing their disease. They hope that their data might prove to be a step toward successful human clinical trials in individuals with hemophilia A.
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Opioid-Induced Hibernation Protects Against Stroke
Using an opioid drug to induce a hibernatory state in rats reduces the damage caused by an artificial stroke. Researchers writing in the open access journal BMC Biology have shown that those animals put into the chemical fugue suffered less behavioral dysfunctions after a period of cerebral artery blockage than control rats.
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Children's Hospital Oakland Scientists First To Discover New For Harvesting Stem Cells

A groundbreaking study conducted by Children"s Hospital & Research Center Oakland is the first to reveal a new avenue for harvesting stem cells from a woman"s placenta, or more specifically the discarded placentas of healthy newborns. The study also finds there are far more stem cells in placentas than in umbilical cord blood, and they can be safely extracted for transplantation. Furthermore, it is highly likely that placental stem cells, like umbilical cord blood and bone marrow stem cells, can be used to cure chronic blood-related disorders such as sickle cell disease, thalassemia, and leukemia. The study, led by Children"s Hospital & Research Center Oakland scientists Frans Kuypers, PhD, and Vladimir Serikov, PhD, will be the feature story in the July 2009 issue of Experimental Biology and Medicine. The doctors and their team made the discoveries by harvesting term placentas from healthy women undergoing elective Cesarean sections. "Yes, the stem cells are there; yes, they are viable; and yes, we can get them out," declared Dr. Kuypers. Stem cells are essentially blank cells that can be transformed into any type of cell such as a muscle cell, a brain cell, or a red blood cell. Using stem cells from umbilical cord blood, Children"s Hospital Oakland physicians have cured more than 100 kids with chronic blood-related diseases through their sibling donor cord blood transplantation program, which began in 1997. However, according to the American Cancer Society, each year at least 16,000 people with serious blood- related disorders are not able to receive the bone marrow or cord blood transplant they need because they can"t find a match. Dr. Kuypers explained that even when a patient receives a cord blood transplant, there may not be enough stem cells in the umbilical cord to successfully treat their disorder. Placentas, however, contain several times more stem cells than umbilical cord blood. "The greater supply of stem cells in placentas will likely increase the chance that an HLA (human leukocyte antigen) matched unit of stem cells engrafts, making stem cell transplants available to more people. The more stem cells, the bigger the chance of success," said Dr. Kuypers. Drs. Kuypers and Serikov have also developed a patent-pending method that will allow placental stem cells to be safely harvested and made accessible for transplantation. The process involves freezing placentas in a way that allows them to later be defrosted and suffused with a compound that enables the extraction of viable stem cells. The method will make it possible for companies to gather, ship and store placentas in a central location. "We"re looking for a partnership with industry to get placenta-derived stem cells in large quantities to the clinic," said Dr. Kuypers. He adds that much more research and grant funding are needed to explore the maximum potential of this latest discovery. He remains encouraged. "Someday, we will be able to save a lot more kids and adults from these horrific blood disorders." About Children"s Hospital & Research Center Oakland Children"s Hospital & Research Center Oakland is Northern California"s only freestanding and independent children"s hospital. Children"s is the leader in many pediatric specialties including neonatology, cardiology, neurosurgery and intensive care. The hospital is a designated Level 1 pediatric trauma center and has the largest pediatric critical care facility in the region. Children"s Hospital has 190 licensed beds, 201 hospital-based physicians in 30 specialties, more than 2,611 employees and an operating budget of $312 million. Children"s research arm, Children"s Hospital Oakland Research Institute, has about 300 staff members and an annual budget of more than $49 million. Primary research funding comes from the National Institutes of Health. The institute is a leader in translational research, bench discoveries to bedside applications, developing new vaccines for infectious diseases and discovering new treatment protocols for previously fatal or debilitating conditions such as cancers, sickle cell disease and thalassemia, diabetes, asthma, HIV/AIDS, pediatric obesity, nutritional deficiencies, birth defects, hemophilia and cystic fibrosis. Children"s Hospital & Research Center Oakland


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