Tag: "occurs" at biology news
Feeding cottonseed meal to female fallow deer safe at low rates
...l contain gossypol, a toxic element that naturally occurs
in cotton plants. The effects of gossypol on ruminants such as red deer and related species are not so overt as those on non-ruminants, but seem focused on the animal's reproductive physiology. Whole cottonseed contains tenfold the amount of gossyp...
UCLA scientists decipher how the brain retrieves and stores our oldest memories
... a puzzle with missing pieces. This could be what occurs
during dementia." Silva believes that the new findings open the door for greater scientific understanding of the molecular mechanisms and biochemistry of cortex storage. "Now that we know where to look, we're one step closer to developing drugs to ...
Findings redefine mechanism of action of RNA helicase enzymes
...ing RNA-protein complexes, or RNPs. Wherever RNA occurs
in the cell, ubiquitous RNA helicase enzymes are responsible for rearrangements of such complexes. RNA helicases are proteins that burn the universal cellular fuel molecule ATP and use the energy gained from this reaction to unwind double-stranded R...
Chromosome losses mean poor survival in childhood leukemia
... are present. The Philadelphia chromosome, which occurs
in 2 to 5 percent of children with ALL, is an abnormal chromosome that sometimes occurs
in several types of childhood and adult leukemias. It arises when a piece of chromosome 9 fuses with...
UC Riverside researchers develop low-carb corn with enhanced protein and oil
... level of cytokinin may determine whether abortion occurs
and this knowledge can be used to engineer grain to improve its nutrient and economic value. "Such improvement would be particularly important for those who depend on grain as their primary source of dietary protein which includes many people in the...
March of Dimes awards $250,000 prize to pioneering scientist
...that are located on the X chromosome. The disease occurs
in about 1 in 5,000 males -- but rarely occurs
in females. Dr. Lyon's groundbreaking hypothesis explained that, very early in em...
Study detects protein in human milk linked to reduced risk of obesity
...y, type 2 diabetes and coronary artery disease and occurs
in 20-25 percent of adults. Higher levels of adiponectin have been associated with less disease. If adiponectin is present in human milk, the Cincinnati Children's researchers theorized, the protein could have an influence over the metabolic "progr...
UCSD finds genetic time bomb in heart that leads to heart failure in some patients
...mined where and how this progressive heart failure occurs
in patients with familial forms of congenital hear...between the heart's two upper chambers (the atria) occurs
in the septum, the wall that separates the heart's left and right sides. The most common treatment ...
Experimental smallpox DNA vaccine protects primates from lethal monkeypox
... the overall public health." As smallpox no longer occurs
naturally, experimental vaccines cannot be tested for their ability to prevent the disease in humans. Thus, licensing of future vaccine candidates will include studies of immune response and protection in nonhuman primates. Monkeypox currently prov...
NCAR aircraft, ground instruments to track carbon dioxide uptake
...s have estimated that 25-50% of U.S. carbon uptake occurs
in mountainous terrain. In the northern midlatitudes, significant carbon uptake occurs
in forests, which are typically left to grow undisturbed in mountainous regions. Ground-based sensor...
Researchers discover cold virus can 'hit and hide'
.... It is possible that the recurrent wheezing which occurs
in children who have suffered from bronchiolitis may be due to virus hidden in the lung. Professor Openshaw says: "Some people may be 'carriers', able to act as a source of new outbreaks in children. If RSV is a 'hit and hide' virus, this could expl...
Inflammation, hypertension are focus of major new MCG research program
...ould be involved just in the end-organ injury that occurs
in hypertension and have nothing to do with blood ...esponse. "We think the elevation of cytokines that occurs
in cardiovascular disease is actually decreasing metabolites produced by the endothelium that would ...
Newfound grasshopper takes to the trees on Konza Prairie
...seldom observed because of it secretive habits. It occurs
in very low numbers, and that makes it more difficult to determine its habitat." Hopkins speculates that its potential distribution on Konza will be limited to wooded areas along creeks and to trees around the headquarters and the Hokan...
Obesity alone not a good predictor of cardiovascular risk and death, fat distribution proved best
...dies without causing an increase in cholesterol as occurs
in those who store fat in their abdomen, allowing them to become massively obese without a corresponding rise in cardiovascular risks....
UC Riverside researchers improve drought tolerance in plants
...minate the buildup in reactive oxygen species that occurs
with the onset of a drought. "This reduction in vitamin C recycling causes plants to be highly responsive to dry growth conditions by reducing the rate of water that escapes from their leaves. Thus, they are better able to grow with less water and s...
New York microbiologists awarded research grants in antibiotic resistance and lyme disease
... emergence of bacterial antibiotic resistance that occurs
between aquatic and terrestrial environments in the salmon aquaculture industry in Chile. The first faculty member to win a Guggenheim fellowship, which is given "on the basis of distinguished past achievement and exceptional promise for future accom...
Tips from the Journals of the American Society for Microbiology
.... Bacterial contamination of maple sap usually occurs
at the taphole. In the study, samples of sap were taken from the taphole of maple trees throughout two seasons and screened for bacteria. Amplified ribosomal DNA restriction analysis (ARDRA) was used to place the bacterial isolates in groups and a ...
Rewriting textbooks on DNA crossover
Key decisions in the genetic shuffling that occurs
before eggs orsperm are formed are made earlier than thought, rewriting textbookgenetics, according to recent papers from researchers at UC Davis,Harvard University and UC San Diego. For sexual reproduction to occur, organisms have to form gamete...
Brain areas identified that 'decode' emotions of others
... passively react to an emotional stimulus, it also occurs
when they actively search for mental state information," says Dr. Sabbagh. Problems in "mental state decoding" are associated with developmental disorders such as autism. As a next step, the researchers plan to investigate whether autistic individua...
St. Jude researchers create image of enzyme that orchestrates natural genetic engineering
...d the replication fork. A stalled replication fork occurs
when the two strands of a chromosome's double-stranded DNA fail to separate. UvsW restarts RDR by unsnarling the stalled fork and restarting replication. During RDR, the ends of the free strands at the fork drift into the DNA of another chromosome, l...
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