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Tag: "resident" at biology news

Newly-discovered class of genes determines ?and restricts ?stem cell fate

...pitulation of an embryonic program is occurring in resident stem cells in adult skin," explains Jon Epstein, M...s that many cancers may arise from normally scarce resident stem cells that grow uncontrollably, rather than from the vast majority of differentiated cells that...

Gray wolves maintain the food chain in winter

...ter trends and model wolves' impact on the fate of resident scavengers faced with a changing climate. Their models show that wolf kills temper the potentially devastating effects of climate-related carrion shortages on scavengers. Unlike mountain lions and grizzly bears, wolves abandon their prey (usually elk...

Study reveals new technique for fingerprinting environmental samples

...ithout having to know the actual identities of the resident microbes. This finding is crucial for studies of microbes in the wild since the sheer number of different organisms present in nearly all environments makes it a daunting task to sequence the multitude of organisms one at a time. With the EGT approac...

Aggressive aquatic species invading Great Lakes

...egardless of whether or not they were the original resident of the territory "A territory owner, such as the logperch, is likely to fight hard to make sure it keeps its turf, but round gobies are extremely aggressive compared to the naturally occurring relatively peaceful logperch and easily take over contes...

Newer imaging techniques may lead to over-treatment

...teries, said J. David Prologo, MD, chief radiology resident at University Hospitals of Cleveland and lead author of the study. However, "our study found no significant difference in the outcomes of patients ruled out for pulmonary embolism with MDCT vs. single-detector CT," he said. "It is possible that we mi...

Gene therapy advance treats hemophilia in mouse models

...sistant research scientist in pediatrics (now a UI resident in internal medicine), targeted the liver because its main functional cells, called hepatocytes, can make the factor VIII protein and secrete it into the bloodstream. However, the investigators recognized the need to target the liver more effectively...

Rutgers to lead $52.7 million protein research program

...olecular biology and biochemistry at Rutgers and a resident faculty member of the Center for Advanced Biotechnology and Medicine (CABM), a research institute jointly administered by Rutgers and the University of Medicine and Dentistry of New Jersey. "Montelione's dedication and the committed efforts of other...

Researchers find ways to turn manure into power

...research to become reality, said Dr. John Sweeten, resident director of the Texas Agricultural Experiment Station at the Texas A&M University System Agriculture Research and Extension Center here. Researchers have long worked with manure as a fertilizer and have studied ways to convert it into energy, bu...

New cell transplantation technique restores insulin production in diabetics

...o-author Saravanan Krishnamoorthy, M.D., radiology resident at the University of Minnesota in Minneapolis. "This is a safe method of cell transplantation that could potentially become a same-day procedure." In type 1 diabetes, the body does not produce insulin. This typically results from the destruction of ...

Pacific Islands paradise protected

...venues. The plan allows for subsistence fishing by resident communities and other sustainable economic development in designated zones of the protected area. In creating the protected area, the Republic of Kiribati took a significant step toward meeting protected area commitments for 2010/12 under the Conven...

Weizmann Institute suggests that immune cells help to maintain cognition and brain cell renewal

...n but instead, recruit the help of the brain's own resident immune cells to safely fight off any outflow of toxic substances from damaged nerve tissues. In the present study, the scientists showed that the same immune cells may also be key players in the body's maintenance of the normal healthy brain. Their...

New antimicrobial compound adheres to skin to promote healing

... a Mexico City amusement park and is now a popular resident of the Georgia Aquarium. Petroleum-based ointments are commonly used in treating skin infections, but Capomacchia said that petroleum can be toxic and inhibit healing,"Using a petroleum product would be like pouring motor oil into the wound," he sa...

A clue from macaques yields evidence for impaired retroviral defense genes in humans

...s that are related to now-extinct viruses that are resident in the human genome. Previous studies had suggested that relatively few evolutionary changes in the TRIM5 protein were responsible for this difference in battling retroviral infection. This prompted the Malik and Emerman groups to screen human popu...

Invasive exotic plants helped by natural enemies

...ing to us because, on most continents, many of the resident herbivores have been hunted to extinction by early settlers, often times to make room for their own domesticated and feral herbivores from the old world," said Parker. He also noted that this radical shift in herbivore composition may favor exotic p...

Scientists force viruses to evolve as better delivery vehicles for gene therapy

...ated virus, or AAV, is a common, though innocuous, resident of the body that has received a lot of attention in recent years as a possible carrier for genes in gene therapy. Because as many as 90 percent of people already have the virus, however, their immune systems are primed with antibodies to quickly tack...

UCLA paper examines how one disease may prevent another

...torical review from cases he saw while a pediatric resident at Babies Hospital in New York City. One case was a kidney disease patient with nephrosis who was unresponsive to medications but went into remission after contracting measles. The other, a cystic fibrosis (CF) patient who needed to be admitted to th...

Molecular force field helps cancer cells defend against attack

...f their major proteins for survival." UF surgical resident Christopher Garces, M.D., and UF research assistant professors Elena Kurenova, Ph.D., and Vita Golubovskaya, Ph.D., also were involved in the work, funded by the National Cancer Institute. "We take our patients, we look at their tumors and we try to...

U of MN uses robotic surgery techniques in cardiac cell therapy research

... Ott, M.D., co-leader of this study, now a surgery resident at Massachusetts General Hospital in Boston, pointed out, "Currently these types of cell therapies, in which stem cells are injected into damaged hearts, are only available to people who are enrolled in clinical research trials." Skeletal and bone...

Stanford doctors advance in bid to turn mice stem cells into blood vessels

...h embryonic stem cells derived from mice, surgical resident Oscar Abilez, MD, and colleagues have successfully differentiated the stem cells into myocytes, one of the building blocks of blood vessels, after placing them in a life-like growth environment that the research team had created. The scientists hope ...

How healthy is that marsh? Biologists count parasites

...eproduce and hence will be underrepresented in the resident snail population, he explained. A survey of the trematode population in resident snails thus becomes a clever means of reconstructing the food web in the area, as the trematodes ref...

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