Chemicals used to protect soldiers in 1991 Gulf War can damage testes, animal studies show
...re interrupted, and some of the stages were absent altogether among rats treated with all three chemicals and stressful conditions. Similar cell degeneration occurred in the seminiferous tubules, where developing sperm are produced, and Sertoli cells that support and nurture the developing germ cells. "On eve...Animal study demonstrates carbon monoxide may help heart patients
...blood flow is decreased and in some cases stopped altogether potentially leading to a heart attack or to organ rejection." The paradoxical idea that the poisonous gas carbon monoxide (CO) might prevent this dangerous turn of events is rooted in animal studies co-authored by Soares and Fritz Bach, M.D., direct...How the nose knows a rose-or a mate
...essive, many mammalian brains can also identify an altogether different type of "smell." Mammals ranging from mice to elephants produce substances called pheromones, which communicate information about social status and when an individual is ready to reproduce. These signals are somehow picked up through the "a...From da Vinci to Monet: Understanding how artists can manipulate the human visual system
...d white photo of the painting: the sun disappeared altogether and melted into the same gray as the sky. To the naked eye, in Impression: Sunrise, an orange sun deceives the senses and appears to shift and flicker in the middle of a dark blue sky. The sun is really, in fact, just as bright (or dull, depending on...Researchers discover strategy that shields HIV from destruction
...es in combating the virus that causes AIDS was not altogether clear. The new data suggest a more active role for HIV-1-neutralizing antibodies in virus containment and an unexpected mechanism of virus escape," he said. "We found that the neutralizing epitopes on the virus did not change, but instead other part......ift and what is today's hot topic may be forgotten altogether tomorrow. Many concepts traditionally denounced by Christianity or, for that matter, other value systems now have become commonly accepted, or at least acquiesced to, even by followers of the religion. These range from scientific principles such as...Fe-TAML(R) activators developed at Carnegie Mellon help cleanup paper and wood pulp manufacturing
...up efforts, their real promise may be in replacing altogether chlorine-based bleaching processes currently in pl...ally avert the formation of chlorinated byproducts altogether and greatly reduce or eliminate color production associated with paper processing, according to Coll...Researchers find key gene in production of egg and sperm
...sis in corn, all either prevent chromosome pairing altogether or else lead to pairs that easily break apart. Other genes are known to be involved specifically in recombination, while still others appear to be critical to synapsis. The gene phs1, however, appears to coordinate the three steps. "Ongoing resea...Pew report finds GM insects may offer benefits, but clear regulatory oversight is lacking
...aking pre-existing pest problems worse or creating altogether new challenges. It is also possible that GM insects released to control the spread of disease could actually have the unintended consequence of enabling an insect to more effectively spread disease or even carry a human disease it was never before a...Scripps scientists describe dangerous cocktail of alcohol, brain peptides, and neurotransmitters
...the amygdala. And when the CRF receptor is removed altogether (by genetic knock out), the effect of alcohol and CRF on GABA neurotransmission is lost. Siggins and his colleagues say that this suggests a cellular mechanism underlying involvement of CRF in alcohol's behavioral and motivational effects. Dur......lly cutting back as a step toward quitting tobacco altogether may be caught in a haze of self-deception. New research shows smokers who slash their cigarette use by half quickly change the way they smoke to compensate for less exposure ironically, in the process, often boosting their consumption of smoke, carb...