Look at past sea-level rise points to troubling future
...variables that go into this than I would ever have believed when I started studying the Gulf Coast in the 1980s."...Sea change: Skeletons of ancient corals different from today's
... This is groundbreaking, because it was previously believed that organisms do not generally change their skele...s astounding, given that most scientists have long believed that the mineral composition of a group of organisms' skeletons is fixed over time," Ries said. ...Elevated inflammatory enzyme, Lp-PLA2, significantly linked to ischemic stroke
...lipoprotein-associated phospholipase A2 (Lp-PLA2) believed to trigger a cascade of inflammatory events in atherosclerosis can independently predict increased risk of stroke, even after accounting for both traditional and novel cardiovascular risk factors, according to a new analysis by investigators from the...Tiny exosomes extracted from donor cells may be 'magic bullet' for drug-free transplants
...tic cells can capture antigens efficiently and are believed to participate in the induction of transplant tolerance. By contrast, once mature, dendritic cells are capable of triggering the T cell activation that leads to transplant rejection. Additional research will be required to determine whether donor-de...Ancient fossil offers new clues to brown bears past
...cestors of modern brown bears in North America are believed to have migrated from Asia to Alaska and Yukon (then a part of Beringia) between 50,000 and 100,000 years ago, and old brown bear fossils are not particularly uncommon in Beringia. Between roughly 13,000-23,000 years ago, the route from Beringia to a...Scientists advocate genomic sequencing of 'living fossil'
...evolution of vertebrate species. Coelacanths were believed to have been extinct until a live specimen was discovered in 1938 off the coast of South Africa. Both of the known coelacanth species that survive today, Latimeria chalumnae and Latimeria menadoensis, are anatomically similar to their fossil relativ...GlaxoSmithKline awards $250,000 in research grants for research on drug therapies for HIV/AIDS
...sent in the RNA of some viruses. IRES regions are believed to direct the synthesis of viral proteins in host cells. Dr. Robertson and his colleagues have discovered a target site within the IRES regions of several viruses, allowing them to be inhibited by a host enzyme called RNase P. "Research by other ...Army-funded effort examines androgen's role in bone loss
..., chronic smoking and bone marrow malignancies are believed to cause androgen deficiency. All in addition to reduced hormone secretion from the testes, a condition called hypogonadism are associated with osteoporosis development in men. The disease also is a side effect of androgen deprivation therapy...2004 IUCN Red List of Threatened Species reveals 15,589 species at risk of extinction
... captivity. However, the real extinction figure is believed to be much higher, due to the conservative approach used in such listings; A total of 15,589 species (7,266 animal species and 8,323 plant and lichen species) are now considered at risk of extinction. This represents an increase of 3,330 since the ...Researchers discover defense mechanisms in some plants believed bred out by humans
...n an enzyme and another protein, both of which are believed to be involved in helping plants defend themselves against pests. "If we can understand how the plant defense system works, we can optimize it in such a way that plants can defend themselves without using pesticides," Esen said. "Plants have been ...A new species of amyloid peptide
...reduce the production of amyloid β-peptide is believed to be one of the more promising avenues of treatment of the disease. To date, more than one dozen γ-secretase inhibitors have been developed or identified."...Psychological stress and disease: UCSF-led study suggests connection
...its toll, at least in part, by affecting molecules believed to play a key role in cellular aging and, possibly, disease development. In the study, published in the November 30 issue of Proceedings of the National Academy of Sciences , the UCSF-led team determined that chronic stress, and the perception of li...New study by UGA researcher shows that Salmonella uses hydrogen as an energy source
... This permits growth of the pathogen. Maier believed that these enzymes might enable bacteria to glean energy from the splitting of molecular hydrogen. Because the high-energy gas produced by the reactions of normal flora bacteria in the intestinal tract is freely diffusible, it can be measured within ...Racial disparities noted in immune system genes
...ne response to injury and illness. Inflammation is believed to be a fundamental component of heart attack, stroke, diabetes and kidney disease, all of which strike African Americans in higher proportions than whites. Other disorders associated with the inflammatory response include premature labor, transplant...Vaccination with anthrax capsule protects against experimental infection in animals
...nthrax vaccine, Anthrax Vaccine Adsorbed (AVA), is believed to be based on the presence of PA. Though the exac... is not known, antibodies to PA induced by AVA are believed to play a role in neutralizing the anthrax toxins. USAMRIID scientists have extensively studied pro...Efforts to clone primates move forward
...mpt to make a successful pregnancy. Stem cells are believed to be a key ingredient in the body's self-repair system blank slates that can develop into multiple cell types such as nerve, blood, bone or muscle. Stem cell-based approaches may hold promise for treating or curing diabetes, Parkinson's disease, am...Stanford study links obesity to hormonal changes from lack of sleep
...o produce increases in body weight, Mignot said he believed they were likely to do so because all the effects were in the right direction and of the expected magnitude. Mignot said more studies on the direct effect of sleep loss on food intake, energy expenditure and obesity are needed. Altering s...Draft sequence of chicken genome completed
...s involved in immune function that previously were believed to be unique to humans." An international consortium of over 170 people from 49 different institutes across the globe assembled and analysed this genome. All of the data has been deposited into freely available public databases (see notes). "Having t...UCSD researchers derive lessons about human evolution from chicken genome
...on vertebrate ancestor of mammals and birds is now believed to reach back 310 million years, compared to roughly 87 million years since humans and rodents split off from their evolutionary 'family tree.' Added NHRGI director Francis Collins: "Sequencing the chicken genome provides an opportunity to reconstr......nfall and changes in land cover. But this study is believed to be the first multisite, observational analysis demonstrating that aerosols affect the carbon cycle. The study shows aerosols affect the earth's regional climate in an even more profound manner by affecting its biological and chemical exchanges of ...