New research at UNC shows ribosomes do not function as conventional enzymes
...a new basis for drug design," he said. "Their work shows that the ribosome's effect is to introduce order into chaos."...Penguins ingest mollusk shells to obtain calcium for thicker eggshells
...search led by a University of Washington biologist shows that during the period when eggs are being laid, female penguins have significantly more mollusk shells, mainly clams and mussels, in their stomachs than males do. The mollusk shells gradually leach calcium used to form eggshells. Penguins typically ...Wisconsin chemists find a new chink in TB's armor
...ock. The work published today by Kiessling's group shows that the enzyme uses the vitamin in a new way, which also gives it a new biological role. Detailing the interplay between vitamin B2 and the enzyme provides a blueprint for inhibitors of the enzymes that keep the bacterium's cell walls intact. As a ...Feeding cottonseed meal to female fallow deer safe at low rates
...unts fed should be reduced by half what this study shows to be safe," Randel said. The study was performed by a student under Randel's supervision, Steven Mapel, for his master's degree thesis. No similar studies either at the Overton center or elsewhere have been done to date on white-tailed deer, the w...Fire ant killing protozoa found in 120 Texas counties
...can strain," Mitchell said. The Texas A&M survey shows the protozoa has occurred naturally, without human intervention. Questions still remain, however, before Mitchell is comfortable with the idea of helping the protozoa propagate. It could be that the protozoa was in North America all along, just waiti...Ritalin may improve Parkinson's symptoms, OHSU study says
...which dopamine is reabsorbed into nerve cells, and shows that the transporter may be a target for other levodopa-boosting drugs. "It may be that by blocking the dopamine transporter with one drug or another, we can augment the effects of levodopa and get better control of Parkinson's disease," he said. Pha...Sediments in many Central Valley streams contain toxic levels of pyrethroid pesticides
...ike pyrethroids are unavailable. The current study shows that to be untrue. "It's amazing that, after 20 ye... the organophosphates that preceded them, our work shows that the environmental effects of pyrethroids can not be ignored and have had too little study for t...Insulin-producing pancreatic cells are replenished by duplication
...apacity of the beta cell," he said. "And this work shows the cells to have a significant proliferative capacity that could be clinically useful." According to Melton, the findings might have implications for developing treatments for type 1 diabetes, a disease that destroys beta cells. "If such people have...Scripps scientists look deep inside sharks and their high-performance swimming system
...r closest relatives. The authors believe the study shows that not only have the physical demands of the external environment sculpted the body shapes of these species, but also the internal physiology and "morphology," or form and structure, of their complex locomotor systems have been fine-tuned over the ...Chromosome losses mean poor survival in childhood leukemia
... severe form of acute lymphoblastic leukemia (ALL) shows that certain chromosome losses can signal an especially poor response to therapy, but that other chromosome abnormalities have no effect on treatment survial. The finding should enable doctors to identify patients with severe ALL for additional or e...Human brain works heavy statistics learning language
...pearing in a recent issue of Cognitive Psychology, shows that the human brain is wired to quickly grasp certain relationships between spoken sounds even though those relationships may be so complicated they're beyond our ability to consciously comprehend. "We're starting to learn just how intuitively our m...New research suggests therapeutic approach for autoimmune diseases
...velop arthritis caused by autoantibodies. His team shows that the elimination or blocking of FcRn resulted in the reduction of autoantibodies and a corresponding protection from arthritis. "These findings suggest FcRn is a potential therapeutic target for many forms of autoimmune disease caused by antibodi...Genetic testing of embryos to pick 'savior sibling' OK with most Americans
...blic Policy Center at The Johns Hopkins University shows most Americans approve of using genetic testing and selection of embryos to make sure a baby will be a good match to donate blood or tissue to a sick brother or sister. But they disapprove of selecting an embryo based on whether the baby will be a g...Staying close to mother helps baby dolphins swim
... to a recovery of dolphin populations? A new study shows how chase by tuna fishermen may sever the link between mother and baby dolphins, to disastrous effect. Young dolphins keep up with their mothers, who are more powerful swimmers, by adopting the ideal position to get a 'free ride' in the mother's slip...Researchers confirm genetic link between hereditary breast and prostate cancer
NEW YORK, May 1, 2004 A new study shows that the risk for prostate cancer is significantly elevated in men who are part of families with a hereditary form of breast and ovarian cancer. Researchers at Memorial Sloan-Kettering Cancer Center have determined that men in families carrying BRCA ...Discovery helps explain how cells package DNA
...al units known as acetyl groups. The present study shows that the Hat B enzymes not only chemically modify histone proteins in cytoplasm--the region of the cell outside the nucleus--but that they remain attached to the histones as the proteins travel into the nucleus. There, Parthun and his colleague, Xi ...Study identifies which patients can benefit from targeted lung cancer drug and why
...le in cancers that are relatively rare. Our study shows that it can be effective for a common form of cancer as well." Non-small cell lung cancer (NSCLC) accounts for about 85 percent of all cases of lung cancer, the number one cancer killer of both men and women in the United States. The study's lead au...Cells from adult bone marrow can be converted into brain stem cells for transplantation
...g in San Francisco, Calif., April 24 May 1, 2004, shows that cells taken from adult human bone marrow can be converted into brain stem cells that meet the criteria for transplantation into the brain. "It's exciting to think that some day a person with Alzheimer's disease could use their own bone marrow to...Genetic signature may predict recurrence in colon cancer patients
...e aggressive, therapies. The data from this study shows that such an assay is highly feasible."...Searle Scholars program awards $240,000 to UT Southwestern researcher
...dicated and intellectually gifted investigator who shows promise for a remarkable and outstanding independent scientific career," said Dr. James Stull, chairman of physiology at UT Southwestern. Dr. Jiang's research focuses on determining the structure and function of ion channels, which are proteins f...