Tag: "harbor" at biology news

New study reveals locations of possible Alzheimer's genes

...e found two locations in the human genome that may harbor genes that increase the risk of Alzheimer's disease. If confirmed, they will be the first genes linked to Alzheimer's disease since ApoE4 was discovered in 1993. The findings are published in the November issue of Molecular Psychiatry, a journal of t...

Not finding life? Dig deeper.

...-- has none. Nor does the area have cliffs which harbor ancient piles of vegetation, known as middens, collected and stored by long-gone rodents. Researchers use such fossil plant remains to tell what grew in a place long ago. So to figure out whether the area had ever been vegetated, Quade and Beta...

Chicken genomic sequence yields insight into vertebrate evolution

...large regions of the genome that are not likely to harbor such mutations. "There are many indications that stable gene deserts may represent treasure boxes of multiple gene regulatory elements," says Ovcharenko, "while the variable gene deserts may be depleted in biological activity." In contrast t...

Researchers discover a stem-cell switch lurking within leukemias

... that divide continually, or self-renew, when they harbor certain genetic abnormalities. Continuous self-renewal prevents these cells from developing into the specialized blood cells that the body needs to function normally. According to Gilliland, previous research had established that leukemia and some ot...

Towards targeted lung cancer treatment

... non-small-cell lung cancers, and that tumors that harbor such mutations are sensitive to two drugs called gefitinib and erlotinib. In the new study, they focused on a signaling protein called KRAS. The KRAS gene is also often mutated in lung cancers, but very few cancers have mutations in both the EGF rece...

Interaction between stem cells and their niches key to differentiation

... stem cells and the specialized "niche cells" that harbor and regulate them. The findings provide better understanding of the signals that stimulate stem cells to either create more copies of themselves or to differentiate into another cell type, said the researchers. Germline stem cells are immature cells ...

New species of coral discovered off southern California

...Many of the deepwater reefs in southern California harbor remarkably healthy communities of corals, sponges, and other large invertebrates," said Love. "This may be the case because, historically, there has been relatively little trawling over reefs in our area. What we need to know is the role that these l...

Hypertension in African Americans linked to two genomic regions

...tified regions on chromosomes 6 and 21 that likely harbor genes contributing to high blood pressure in that group. The novel statistical method, called admixture mapping, narrowed the search for genes related to hypertension, bringing researchers and doctors closer to finding more effective treatments. Rese...

Researching airborne metals in transit workers' bodies

...r in New York City. But do transit workers' bodies harbor elevated levels of these metals? And does this translate into a health concern for the workers? In a new paper called Steel Dust in the New York City Subway System as a Source of Manganese, Chromium, and Iron Exposures for Transit Workers, Steven C...

Researchers uncover mutated genes involved in lung cancer; one affects nonsmokers

... have never smoked are more likely than smokers to harbor one of two genetic mutations that researchers at U...have established eight lung cancer cell lines that harbor several types of EGFR mutations and are now establishing another line from a patient who relapsed af...

Hydrogen and methane provide raw energy for life at 'Lost City'

...rns the diversity of life. The fluids at Lost City harbor large amounts of microorganisms comparable to what's found in rich organic sediments. However the diversity of species is low with, for example, just a handful of methane-producing and methane-consuming Archaea. In surprising contrast, researchers d...

Stealth worms may improve insect pest control

...us bacteria; those in the family Heterorhabditidae harbor Photorhabdus bacteria. Both types of EPN operate in similar ways. In the soil or in encrypted habitats such as the pockets behind the bark of trees, the juvenile nematode waits for (or sometimes actively seeks) an unsuspecting host - a grub or a larv...

Heart repair gets new muscle

...ver, recent evidence suggests that the heart might harbor stem cells after all and that such cells can be tr.... The authors can't say why skeletal muscle would harbor cardiac stem cells, but for now, the Spoc cells provide a valuable tool for studying heart cell diff...

VUMC researchers find drug-resistant bacteria MRSA a growing threat

...SA) and the number of asymptomatic individuals who harbor the organism in their bodies. In fact, in a recent analysis of children seen in 2003 at the emergency department of the Monroe Carell Jr. Children's Hospital at Vanderbilt, approximately 60 percent of the skin infections due to the staphylococcus ge...

Primates on the brink

...r just 2.3 percent of the Earth's land surface but harbor well over 50 percent of all terrestrial plant and animal diversity. Eight of the hotspots are considered the highest priorities for the survival of the most endangered primates: Indo-Burma, Madagascar and the Indian Ocean Islands, Sundaland, Eastern ...

Study reveals candidate targets for anti-retroviral therapeutics

... the May issue of Genome Research. Many organisms harbor mobile genetic elements that are non-pathogenic molecular relatives of retroviruses. In budding yeast, these mobile elements (called Ty or transposable yeast elements) encode proteins that are homologs of retroviral proteins. The proteins encoded...

Same-sex mating discovered in a toxic fungus

...us because patients infected with it predominantly harbor a single mating type, reducing the possibility of normal fungal sexual reproduction." The potentially life-threatening fungus C. neoformans invades the central nervous system to cause disease, most commonly in immune-compromised patients such as orga...

Genes influence how heart failure patients respond to drugs

...ve discovered that patients with heart failure can harbor genetic variations that determine whether they will tolerate the common heart drugs known as beta-blockers. In a separate study, they also determined certain genes influence whether beta-blockers successfully restore the heart to a more normal shape ...

ASU researcher creates novel 'bioelectronic signatures' to detect DNA mutations

...e rapid screening and identification of genes that harbor disease. Joseph Wang, director of the Center for Bioelectronics and Biosensors at the Biodesign Institute at ASU, led a team that successfully merged efforts in the fields of biosensors, electronics, and nanotechnology to fashion nanocrystals that ca...

Can our genes tell the story of our divergence?

...l, yet scientists predict that both species should harbor genetic footprints of our divergence the subject of a recent study in the premier open-access journal PLoS Biology . One way to find such genetic signatures is to search for genes that reveal signs of positive natural selection. The assumption is ...

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Breaking Biology News(10 mins):Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 2Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 3Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 4EyeLock, MorphoTrust Form Strategic Partnership to Pursue Commercial Enterprise Deployments 2EyeLock, MorphoTrust Form Strategic Partnership to Pursue Commercial Enterprise Deployments 3Study finds laundry detergent pods, serious poisoning risk for children 2
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