Tag: "uncover" at biology news

Researchers achieve germline transmission of 'gene knockdown' in mice

...ery and other methods, should enable scientists to uncover a great deal of information about how genes influence many normal and pathological processes. Although the current study targeted a gene thought to be involved in DNA repair, any gene would have sufficed as a target to demonstrate proof of principle ...

Effects of rare, devastating disease linked to shrinking of cells' telomeres

...able to follow the mice longer and, ultimately, to uncover signs and symptoms of premature aging - a prominent feature of the AT condition in humans. "This study reveals the complexity of the genetic interactions between Atm deficiency and telomere dysfunction" in living mice, the authors wrote....

Univ of MD study on prevalence of celiac disease

...be able to use this data on celiac disease to help uncover what causes other autoimmune diseases."...

Opening the black box: Scientists gain new tools to learn about the near-shore environment

...oung go, to take this apart. We need to be able to uncover the physical mechanisms, the current flows and the oceanographic features." "In order to figure out the movement of both fish and invertebrates, weve got to become really good oceanographers," said Steve Gaines, co-author and director of the Marine S...

[Mis]understanding village abandonments

...Varien and his team also studied tree ring data to uncover the periods when humans harvested trees for construction timbers and fuels. Periods where there was little or no tree harvesting were interpreted as evidence of a community's depopulation. By taking over 10,000 tree-ring samples at over 8,000 sites, ...

Researchers discover strategy that shields HIV from destruction

...ield, as well as other regions of the envelope, to uncover different working areas, conferring a strong survival advantage to viral particles that cannot now be "seen" by antibodies, which also change their structure in pursuit of the virus. But the cat (the immune system) cannot keep up with the wily mouse ...

Studies of rare blood syndrome yield novel route to cancer

...ed to detect cancer-causing abnormalities will not uncover such deletions, said Gilliland, a screen of the 96 known tyrosine kinases in the human genome could readily identify such deletions. According to Gilliland, the new study also suggests that Gleevec may be inhibiting other tyrosine kinases in some HES...

Human sperm may 'smell' their way to the egg, Science study suggests

...nce called "bourgeonal." "We were not expecting to uncover a receptor for chemo-attraction, this is the best we could expect to find," said author Marc Spehr of Ruhr-Universitt Bochum in Bochum, Germany, who noted that one of the next steps is to identify a female-produced equivalent to bourgeonal. The scie...

Army ants have defied evolution for 100 million years

...ly sought information from four different genes to uncover clues to their relationships. "Essentially I built a genetic family tree. Then I took that family tree and looked at its genetic tree rings to postulate what happened in the past," he said. Brady combined the genetic data with the army ant fossil in...

U. of Colorado scientists discover four new kingdoms of life

...en growing as scientists use new DNA techniques to uncover the family of eukaryotes, they said. Unearthing new organisms might even help in solving practical problems in agriculture and ecology, Meyer said. "Newly discovered microbial eukaryotes could be of benefit in understanding soil diversity that may b...

UNC HIV-AIDS screening, prevention method could become national model for cutting illness

...sts had suggested that the pooling technique could uncover individual new acute HIV cases among large groups of at-risk people, but the UNC investigators and their colleagues were the first to try the idea. Other states have expressed interest in conducting similar screening. According to the JAMA article, t...

Getting closer

...he team's work is yet another feat in the quest to uncover how the body's immune system fights an enormous array of antigens, employing a delicate balance of mutations. "Mutations can be both helpful and harmful," Petruska said. "Balance is key."...

Leaf fall in ancient polar forests still a mystery

...carbon loss hypothesis was not valid, they did not uncover the reasons why deciduous, and not evergreen trees, populated the polar forests. "What we did find is that while everyone thought that the biggest problems would be during the polar winter -- when there is no sunlight -- there appears to be a proble...

Lose it or lose it

...e-clinical dementia, it takes an extended study to uncover the dangers that overweight may pose to a very elderly population." Women in the study who developed AD between the ages of 79 and 88 were significantly more likely to have been overweight at age 70, as well as at 75 and 79. The women who developed A...

Depression in African-American men may be barrier to high blood pressure control

...arly the first step in treating hypertension is to uncover any underlying depression early on."...

Ancient DNA analysis unveils mystery of history's most horribly deformed man -- The Elephant Man

...ntists will take viewers along on their journey to uncover the truth behind the legend in THE CURSE OF THE ELEPHANT MAN, premiering Wednesday, July 30 at 9 PM ET. For the first time ever, scientists were incredibly successful in extracting DNA from Joseph Merrick's century-old hair and bone in their inv...

Weizmann Institute scienists find that stem cells in the bone marrow become liver cells

...ants, especially liver-related ones. They may also uncover a whole new stock of stem cells that can under certain conditions become liver cells. Until a few years ago only embryonic stem cells were thought to possess such capabilities. Understanding how stem cells in the bone marrow turn into liver cells cou...

Sex matters in health promotion and disease prevention

...but only within the past decade have they begun to uncover significant biological differences between the sexes. This reality was validated in the IOM report, which clearly distinguishes between sex and gender, while attempting to better understand sex differences and determinants at the biological level," ...

Drug developed for rare disease may help millions more as treatment for cancer, autoimmune diseases

...ly 1990s, research at U-M and elsewhere started to uncover the role of copper in angiogenesis, or the formation of new blood vessels. This is a process that occurs normally in the body but becomes uncontrolled in cancerous cells. Researchers found copper was important to various molecules called growth facto...

UCLA study uses genetic profiling to distinguish types of leprosy

...e in the new science of using genetic profiling to uncover genes linked to responses that lead to disease progression," said principal investigator Dr. Robert L. Modlin, professor of dermatology and microbiology, immunology and molecular genetics and chief, division of dermatology, David Geffen School of Med...

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