Climate change plus human pressure caused large mammal extinctions in late Pleistocene
...hs; and two horse species occurred before apparent signs of human contact. A second pulse of climate-caused extinctions began in Europe and Asia about 12,000 years ago as cold-adapted animals - the wooly rhino and the mammoth - died out with warming temperatures. But it's possible, Barnosky said, that the ...Chemical derived from vitamin-E shows early promise as cancer drug
...y lymph nodes of those mice lacked any microscopic signs of cancer, though these structures are where the c...er-free. Treated mice that did develop microscopic signs of cancer in the lymph nodes had only one or two lesions, rather than the six or seven of untreated ...UT Southwestern biochemist honored with NIH Director's Pioneer Award
...mes, from abnormal eating and sleeping patterns to signs of depression. Studies of the genetic link to sleep patterns may help researchers better understand and treat insomnia and other sleep-related disorders, while a clearer picture of the relationship between circadian rhythms and depression might im...Newly identified master gene key in baby's first breath
...e was deleted, the knockout mice developed all the signs and symptoms of respiratory distress syndrome on the first day of life and died within hours of birth. The few knockout mice that did survive, developed asthma-like symptoms and emphysema later in life. On the other hand, when Foxa2 was fully intact,...University of Alberta researcher looks for clues to mysterious disease
...mpbell describes how they examined ATM mutants for signs of locomotor defects in mutant and control flies and found the average climbing ability to be lower for the mutant males. Aside from locomotor defects, the mutants recapitulated major symptoms of the disease, A-T, including sensitivity to ionizing ra...A liking for sweets, combined with novelty seeking, may predict alcoholism
...ly boys who prefer stronger sweet tastes and have signs of elevated novelty seeking, it is especially important to delay their first experience with alcohol, although the same advice is good for all children. Garbutt said there are multiple questions that can be addressed in future research. First, does ...Columbia research to examine gene influence on severity of peridontal disease, therapy response
...aggressive that are categorized based on clinical signs after consideration of medical and oral health his...e categories can be difficult because the clinical signs of both can be quite similar, while response to standard therapeutic procedures may vary considerabl...Hunting illusive signs of natural selection
...ily selected." This 115-kilobase region shows many signs of a recent selective sweep, but only in the European-American population. Recent for geneticists is something like 20 to 25,000 years ago. One hypothesis of human population movement suggests that a small number of humans moved out of Africa and p...Computer scientists at UH developing 'nurturing' computers
... of facial imagery, almost the full range of vital signs can be extracted. This physiological information can then be used to draw inferences about a variety of health symptoms on a continuous basis. "An increased anxiety level, for instance, is indicated when we detect periorbital warming through therm...Purdue study finds antioxidant protects metal-eating plants
...edium, the normal plants failed to grow and showed signs of severe membrane damage, an indicator of oxidati... plants with the inserted gene thrived, showing no signs of membrane damage. Going one step further, Salt conducted another experiment in which he exposed th...Congress to fund Sequim-based coastal security research effort
...w generation of sensors and technologies to detect signs of WMD, sometimes referred to as signatures. For example, PNNL researchers will evaluate the use of living marine systems such as clams and mussels as biosensors to concentrate and detect the presence of biological, chemical or nuclear materials in c...... sleep during the nighttime, and some of our vital signs follow this pattern. Our blood pressure fluctuates daily, rising and falling at predictable times of day and night. Scientists have provided evidence of the existence of internal clock mechanisms by placing organisms like rodents in chambers isolat...Jefferson scientists find gene expression pattern may predict behavior of leukemia
...he development of cancer. MiRNAs can serve as stop signs for gene expression and protein synthesis, and are thought to play important roles in regulating gene expression in development. Reporting in both the online and the August 10 print version of the Proceedings of the National Academy of Sciences, the...The telomere crisis: A crucial stage in breast cancer
... correlated features as the amount of DNA content, signs of rearranged chromosomes, and the number of copies of genes known to play a role in cancer. These measures increased, on average, from the hyperplasia stage to the invasive cancer stage. They also measured mean telomere lengths of cells at each sta...New hypoxic event found off Oregon coast
...with PISCO. "Then two months ago, we saw the early signs of another hypoxic event, and we believe we're now in the process of another dead zone event." In the 2002 event, water at depths of 30-50 meters, within a mile or two of the shoreline, had dissolved oxygen levels in the range of 0.5 to 1 milliliter...Study finds anti-HIV protein evolved millions of years before the emergence of AIDS
... to Apobec3G and found that some of them also show signs of evolutionary pressure. These too may have arisen to defend the host genome against mobile genetic elements and may now play a role in defending against as-yet-unknown viruses. Malik said that there is a good lesson to be learned from his lab's res...FDA approves VYTORIN, first and only to powerfully reduce LDL cholesterol through dual inhibition
...ported to a doctor promptly because these could be signs of a serious side effect. VYTORIN should be discontinued if myopathy is diagnosed or suspected. To help avoid serious side effects, patients should talk to their doctor about medicine or food they should avoid while taking VYTORIN. In three placeb...New drug shows promise against Gleevec resistance in mice
...l whether the drug makes it into the clinic. Early signs are good. "This could be the first drug to get around kinase resistance, and that has broad implications," Sawyers said. "If this drug should prove to be safe and effective in the clinic, one can envision using this in a combination kinase inhibitor ...Mouse brain stem cells capable of converting into blood vessel cells
...rcent of the mouse neural stem cells began to show signs that they had developed into cells similar to endothelial cells. The new cells expressed CD146, Flk-1 and VE Cadherin, protein markers that are associated with endothelial cells. They also retained a single nucleus and had only mouse chromosomes, sug......urces Group of the city parks department will show signs of progress on an ongoing effort to restore native habitat to the former site of a cement plant on the Bronx River, now a city park. The Cat from the Wrong Side of the Freeway Major highways limit the migration of large predators and put a major da...