Tag: "mature" at biology news

Most promising clinical uses for stem cells from fat agreed on by international society

...and differentiation and other groups consisting of mature cells. The society aims to develop common scientific methods in order to best compare results between studies, and believes that much of the research effort should be directed toward identifying the protein markers for adipose stem cells in order to ...

Muscling in on a deadly cancer

... provide evidence that the cancer may originate in mature or nearly mature skeletal muscle fibers. That is controversial because satellite stem cells cells that become new mu...

Researchers find protein that makes long-term memory possible

... The protein is known as mBDNF, which stands for mature brain-derived neurotrophic factor. It appears to chemically alter neurons, boosting their ability to communicate with one another. "Most of what we accomplish as human beings depends on what we learn," said Duane Alexander, M.D., Director of t...

GENEPI: a tool to refine and fine-tune radiotherapy treatment for cancer

...fects are anticipated within the next 2 years with mature data, which will also provide information on the late effects of radiotherapy, available in about 10 years. The collected tissues will be available to researchers for at least twenty years. "It is estimated that 5-10% of cancer patients could tolerat...

Genetically endowed worm may substitute for rodents in some toxicology testing

.... Even if the animals do not sicken or die as they mature in the presence of toxicants, the chemicals may affect their organs in ways that can be investigated normally through surgery or necropsy. As with laboratory rats and mice, Freedman and his workers can even produce "knockout" varieties of ...

Fly gut's 'sticky spot' for leishmaniasis parasite

...ke to "stick" around inside their hosts while they mature and prepare to infect again. Now, Jesus Valenzuela and colleagues have identified the molecular receptor inside the midgut of the sand fly Phlebotomus papatasi that provides the "flypaper" for the parasite that causes the major form of leishmaniasis,...

Researchers discover molecular timekeeper in bone development

...oft cartilage-based foundation is laid, upon which mature bone will solidify. Then, minerals containing calcium and phosphate are deposited throughout the foundation, creating a framework for the bone. Finally, this raw material is sculpted and hardened into bone. Missteps in this process can result in deve...

Discovery of real-time natural gas formation offers prospect for renewable energy resource

...years ago, when the hydrocarbon deposits were less mature and closer to the surface of the earth. More recently, however, research has suggested that living methanogenic organisms may be present and actively forming methane within some major coalfields. LUCA scientists, employing the tools of m...

Study identifies molecular complex vital to creation of miRNAs

...ecursor RNA molecules before final processing into mature miRNAs. The finished miRNAs are remarkably small, only 22 nucleotides in length, but powerful. These molecules appear to work by binding to complementary regions in messenger RNA, responsible for translating genes into proteins, or even to certain st...

New pheromone creates buzz about the clout of older bees

... ones don't keep them in check, the young ones can mature too quickly," Huang said. "It's kind of the same t... bees didn't come home, the young nurse bees would mature ahead of schedule and head out to become foragers themselves. If the older bees were kept inside mor...

Read your shampoo's label: Study finds common ingredient stunts developing neurons of rats

...Journal of Neuroscience involved acute exposure to mature rat neurons. They reported that 10-minute exposure at a high concentration roughly 100 times the dose used in their current study was lethal to these cells. To understand what effect chronic exposure would have on immature, developing neurons, the...

Stanford biologist working to restore native forests to Hawaii

...tree cover, including pasture, restored forest and mature forest. Doctoral student Joshua Goldstein is conducting the financial research. He is working with landowners to develop a financial model that depicts what land uses will yield the best balance of profit and ecological benefit. He plans to assess fa...

What have scientists learned since Mount St. Helens erupted?

...sed productivity, but remained far below that of a mature forest. "Even in areas where all life had perished, small-oasis habitats developed within a few years of the 1980 eruption," says Crisafulli. "Plants became established around small springs that promoted the colonization of many small mammals, bird...

MIT team aims to mend broken hearts

...eart tissue that displays many of the hallmarks of mature cardiac tissue, including regular contractions. "We have been trying to engineer a patch of tissue that has the same properties as native heart tissue, or myocardium, that could be attached over injured myocardium," said Gordana Vunjak-Novakovic, a ...

Baby songbirds and human infants learn sounds in similar ways

...By 80 to 90 days of age, the bird is both sexually mature and sings the song he will use in courtship. After that he sings that song exactly the same way every time and will do so for the remainder of his life. Zebra finches can live for up to 8 years. The Rockefeller University studies are the first to inv...

Key to understanding how blood and blood vessel cells develop discovered

...topitic cells --- the blood-forming cells that can mature into red blood cells and important immune cells. A new study that appeared this month in Nature gives the strongest proof yet for this theory. Gordon Keller, PhD, Professor of Gene Therapy and Molecular Medicine and colleagues identified the shared p...

New model of rare childhood blindness holds promise for testing preventive therapies

...at give rise to the special cells that make up the mature retina," Dyer said. "Or, the gene might determine which specialized cell develops from a specific primitive cell. In fact, the gene might control both activities." The researchers also hypothesize that AIPL1 regulates the for...

Research studies effects of soy baby formula on intestinal development

...which suggests that genistein had little effect on mature intestinal cells that were no longer proliferating. Although these data are the first to show that genistein is bioactive in the neonatal intestine, Donovan said these results do not mean soy formulas should not be fed to babies. "Clinical data sug...

Combined stem cell-gene therapy approach seen as potential treatment for cystic fibrosis

... from normal subjects and placed in a culture with mature epithelial cells for 14 days differentiated into the specialized cells, taking on their shape and displaying their characteristic protein markers. Importantly, stem cells aspirated from the bone marrow of three CF patients and co-cultured in the same...

Researchers discover a stem-cell switch lurking within leukemias

...sing genes associated with leukemias can transform mature white blood cells into leukemic cells that have al...ifferentiated state. At that point in development, mature white blood cells have irrevocably lost one of the key properties of stem cells the ability to self...

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(Date:5/16/2013)... African-American adults living closer to a fast food restaurant ... who lived further away from fast food, according to ... Center, and this association was particularly strong among those ... published online in the American Journal of Public ... to a fast food restaurant, and among lower-income African-Americans, ...
(Date:5/16/2013)... a gene involved in neurodegenerative disease also plays a ... clock. , In a study of the common ... keeps the clock responsible for sleeping and waking on ... the fruit fly,s sleep-wake cycle is disturbed, making waking ... , The discovery is particularly interesting because mutations ...
(Date:5/16/2013)... the cellular layer lining the body,s blood vessels, ... nanometers in thickness, this super-tenuous structure routinely withstands ... to create a unique and highly dynamic barrier ... from the body,s circulatory system. , It,s also ... be physically breached to enable immune cells ...
Breaking Biology News(10 mins):Body mass index of low income African-Americans linked to proximity of fast food restaurants 2Body mass index of low income African-Americans linked to proximity of fast food restaurants 3Gene involved in neurodegeneration keeps clock running 2Endothelium, heal thyself 2Endothelium, heal thyself 3Endothelium, heal thyself 4
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