Cornell Researchers Precisely Date Wood From Ancient Tomb In Turkey
...nd earlier samples of wood." While the researchers stress that they have not yet achieved an absolute chronology, they believe their latest findings have brought them considerably closer and will enhance their understanding of the relationship between pivotal cultural events of the past and present. "Often ...Nitric Oxide May Hold Key To First Treatment For Deadly Form Of Malaria, Duke Scientists Report
...ell can't contain the flow of SNO, the nitrosative stress can well be theorizedto contribute to cancer, arthritis, neurodegenerative diseases, stroke andhardening of the arteries -- all diseases associated with NO."...Nitric Oxide Found To Control Cells By Turning On Genes; Suggests New Role In Health And Disease
...ell can't contain the flow of SNO, the nitrosative stress can well be theorizedto contribute to cancer, arthritis, neurodegenerative diseases, stroke andhardening of the arteries -- all diseases associated with NO."...ORNL Finds Common Genetic Cause For Epilepsy, Migraine
...ion-based studies, such other factors as emotional stress and certainfoods and additives have been associated with migraine attacks. Isolation of the human episodic ataxia/migraine gene was reported in anindependent study done by LLNL and Leiden University in The Netherlands. Inthat study, researchers clone......environmental stress." Their study, "Environmental stress sensitivity of an ascorbic acid-deficient Arabidopsis mutant," in the Proceedings of the National Academy of Sciences, was reported by Last, Patricia L. Conkin, a postdoctoral fellow with Boyce Thompson and Elizabeth H. Williams, a Cornell undergradu...Altered Genes, Altered Metabolism--Longer Life?
...t a downshifting of glucose metabolism in times of stress helpsthe worm live longer. Dr. David Finkelstein, of NIA's Biology of Aging program says, "this findingsuggests that altering glucose metabolism could be a key to slowing aging inhigher organisms, even perhaps in humans." The daf-2 gene is in the sa...A New Biochemical Link Established Between Stress, Sex And Dominance
...Fernald has shown that continuous high levels of a stress hormone, cortisol, work to prevent most male cichl...olved dominant and non-dominant males, the role of stress hormones in social systems may be widespread."The interesting new thing we have found is that stress...MGH-Led Team Finds Gene For Crippling Neurologic Disorder
...te exciting, because it may help us understand how stress situations bring on a variety of neurological diseases, including this one," says Breakefield. She explains that only 30 percent of those inheriting the DYT1 gene mutation actually develop dystonia and that vulnerability to the disease seems to disa...Wonder Thread: UD Scientists Report First Protein With Collagen And Elastin-Like Domains
...a perfectly functional collagen subjected to great stress and strain in marine environments." It's possible, Waite speculates, that the missing glycine creates a 35-degree "kink" or bend in the collagen. But, he adds, "how that might contribute to the stretchiness of the protein is anybody's guess." Two his......hat the veterans do not suffer from post-traumatic stress disorder or other psychological problems (published in the August 1997 Archives of Clinical Neuropsychology ). The $3 million will allow UT Southwestern researchers, assisted by the Defense Department and North Carolina-based Research Triangle Insti...Brain-Activity Data Clarify Contradictions In Earlier Anxiety Research
...ty in combat veterans sufferingfrom post-traumatic stress syndrome. In the study, 40 students were split into groups based on levels of reportedtrait anxiety, which is associated with a tendency toward anxious arousaland panic. As the students listened to narratives that depicted pleasant,unpleasant, arou......rough the bloodstream, but pregnancy can produce a stress onthe pancreas. When this happens, the pancreas sometimes can't produce enoughinsulin, a hormone that allows the body to use carbohydrates, triggeringgestational diabetes. Taylor says newborn rats are immature at birth so their first threewe...Presence Of Protein Extends Life; Potential Aging Mechanism Found
...demonstrates that a brief genetic response to heat stress can increase a fruitfly's life span at normal temp...hanism for aging because the capacity to moderate stress is a centralfunction to regulating that aging mechanism. In the study, Marc Tatar and colleagues f...Stress Lowers Sperm Count By Overwhelming Cells That Make Testosterone
NEW YORK - Why does stress cause a man's sperm count to plummet? Research led...n Council endocrinologist Matthew Hardy found that stress hormonesoverpower the enzymes responsible for ensuring that cells in the testes producetestosterone,...Recombinant Protein Immunizes Mice, Promises New Strategy Against Infection And Cancer
... says Dr. Young. Heat shock proteins, or stress proteins, are a family of proteins thatcells produce in response to stress from heat, injury, germs, or toxins. Normally, these proteins act as molecular chaperones, binding t...Free Radicals Implicated In Impaired Lung Function; Damage May Be Mitigated By Certain Antioxidants
...of smoking. "It is well known that oxidative stress plays a role in atherosclerosis, cancer and other ...the relationship between lung function, oxidative stress caused by free oxygen molecules, also known as free radicals, and blood levels of antioxidants, subs...Regulator Of Fat Thermostat Found
..."stress hormone" becauseits levels increase during stress and long-term illnesses such as chronicdepression and AIDS. But no one has understood how cortisol causes weight loss. "Our study suggests that leptin might be one link between cortisol action andweight loss," Dagogo-Jack says. Dagogo-Jack notes tha...Garlic Prevents Hardening Of Aorta, New Study Shows
...nducts blood smoothly from the heart and puts less stress onother organs. The study also revealed that...ugh the narrowed passage at high speed, which puts stress on the body. “Every time the heart contracts, it gives stress to the aorta,”said Bou...Diet, Antioxidant Status, And Smoking Habits In French Men
...ant vitamin intake and plasma indexes of oxidative stress and antioxidant defenses inFrench adults. Food and...ainst malondialdehyde-protein adducts as oxidative stress indexes. Smokers ateless fruit and vegetables than nonsmokers, leading to lower vitamin E, vitamin C...Fauci: New Findings Help Explain "Rebound" Of HIV In Patients Who Discontinue Triple-Drug Therapy
...ssays," Dr. Fauci says. "Our data also stress the importance of developing comprehensive treatment strategies which not only block HIV replication but also modulate the host factors that drive such replication. Background In studies dating ...