Study of menopausal women finds no benefit from hormone therapy and antioxidant vitamins
...dant vitamins either alone or in combination with hormones did not have fewer heart attacks, deaths, or prog... study were small, participants taking both active hormones and vitamins had the highest death rate while participants on placebo versions of both treatments ha...Influences of sex on gene expression discussed at annual conference
...of autoimmune diseases. The effects of sex steroid hormones estrogen, progesterone and testosterone on the d...fects women two to three times more than men. Sex hormones play a role in the development and progression of prostate and breast cancers. Despite diverse genet...UCLA scientists eavesdrop on cellular conversations by making mice 'glow' with firefly protein
...e receptors continually grab and release different hormones and molecules that influence cellular communication activity. "A cell receptor has no voice or vocal cord," Gambhir said. "It must plug into the cell's protein network to speak. One protein moves and acts on another, which sets off a chain reaction o...UC Riverside leads the country with the highest number of 2002 AAAS Fellows
...s from venoms, and discovery of ecdysis-triggering hormones in insects. Janet Arey , professor of atmospheric chemistry. Dr Arey's research includes gas-phase atmospheric chemistry and air pollution. Citation: For research identifying the products of atmospheric reactions of volatile organic compounds,...Another job discovered for a master metabolic off-switch
... which translate external chemical signals such as hormones into a cellular response. Discovering the detailed mechanisms of beta-arrestin action is important because the receptors it "downregulates" number perhaps in the thousands, and control processes throughout the body -- including heart rate; blood pres...Walleye fishery threatened; Puerto Rico aquaculture, calling ALVIN on ocean bottom
...d in animals, including humans), or from synthetic hormones like those found in birth control pills and industrial products such as detergents, packaging plastics and insecticides. Many questions still remain. So far, researchers have been unable to pinpoint a specific chemical as the cause of the sexual ch...New study promises safer hormone replacement therapy
...am reported last year in the journal Cell that sex hormones exert their bone-protecting and reproductive effec...entists have demonstrated in animals how synthetic hormones can build bone without affecting reproductive organs. Manolagas and colleagues tested the effects o...Hormones modify the type of proteins produced
HOUSTON -- (Oct. 11, 2002) -- Naturally occurring hormones such as estrogen, progesterone and cortisol play a...y's issue of the journal Science. "These steroid hormones are some of the things that change the protein that comes from a gene," said Dr. Bert O'Malley, chai...Researchers discover genes that control regulatory functions in malaria mosquitoes
.... Regulatory peptides acting as neurochemicals and hormones govern these processes in mosquitoes, so describing and understanding these peptides are crucial steps toward control. "At this point the exact function of these genes is speculative," said Crim, a peptide-reception biologist. "None of these reg...Growth hormone could make farm fish bigger, faster to market
Synthetic growth hormones could shorten the growth time needed for farm-raised fish to reach market size. In research led by Connecticut Sea Grant scientist Thomas Chen, transgenics, or the technique of transferring DNA from one species to another, has showed promise as a me...Hormone replacement therapy may improve breast cancer detection and survival rate
...ue of the journal The Archives of Surgery. Because hormones increase the density of breast tissue, researchers have suspected that HRT use would make it more difficult to detect tumors on mammograms. As a result, it was suspected that tumors in patients who have received HRT might not be detected until they w...Happiness, health and hormones are behind six ESRC-funded research projects, whose findings will be presented this week at the British Association Festival of Science. A summary of six research projects and times of their presentations follows below: Diet, deprivation and food re...Pregnancy hormone induces healthy blood vessels, Magee-Womens Research Institute scientists report
...sburgh School of Medicine. "If we can discover the hormones responsible for these pregnancy changes and how th...ggest that it may be time to evaluate other female hormones besides estrogen for affects on cardiovascular health particularly in light of the newest findings ...Mice become first animals to produce other species' sperm
...demonstrates that testosterone and other mammalian hormones can work across species, said David de Kretser, di...rsity in Australia. "These data indicate that the hormones produced by the mouse are adequate to stimulate sperm production in a range of species." Spermatogen...Leading lab expert to update medical community on diagnostic testing for thyroid function
...ma condition in which the concentration of thyroid hormones in the body is below normalis the most common form of thyroid dysfunction, and is far more common than an overactive thyroid. Large population studies have shown that as many as one woman in ten over the age of 65 has evidence of the earliest stages ...University of Georgia researchers link increased risk of illness to sewage sludge used as fertilizer
...ng machines, heavy metals from industry, synthetic hormones from birth control pills, pesticides, and dioxins, a group of compounds that have been linked to cancer. Fertilization of land with processed sewage sludge, or "biosolids," has become common practice in Western Europe, the United States and Canada. L...Sex genes of fish disrupted by common household products
...ing compounds in the water behaves chemically like hormones in fish tissues and cells. When compounds such as polychlorinated biphenyls, dioxins, certain plasticizers, and some detergent additives are in streams or rivers, groups of fish, birds, frogs and other animals are sometimes found to be all male, or a...UCLA scientists discover hormone may spur dramatic weight loss
... will explore the interactions of leptin and other hormones in the elderly, how leptin replacement influences the human endocrine system, and the effect of a single mutation in one of the two genes that encode for human leptin....Structural mechanism of cell enzyme revealed by UT Southwestern researchers
...te many cellular processes, including responses to hormones and drugs, to ultimately prompt certain changes in the body. This cellular signaling is necessary for every function. "Signaling cascades are an important 'middle man' in the body's responses to the environment and modulate cell growth and differenti...Collaborators receive $10.5 million to explore progression and treatment of prostate cancer
...oject involves a study of the relationship between hormones and prostate cancer. Scientists already know that ...some prostate cancers are able to find replacement hormones within the human body, besides testosterone, to grow. Researchers want to know why and how this happ...