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Tag: "proven" at biology news

Suicide risk does not increase when adults start using antidepressants, study finds

...ple with depression being treated with medications proven to be effective in battling depression, he adds. "There may be subgroups of people who become more agitated or suicidal after taking these drugs, and those people should seek help from a doctor or therapist right away if that happens," says Simon. "...

Report lists top 20 most-vulnerable African carnivores

...g toward developing that picture, but the task has proven challenging. That's because the enzyme tends to clump together once outside of cells, preventing it from forming the ordered crystals necessary for structural studies. Scientists from Cech's lab and others had tried to simplify matters by crystallizi...

Efficiency, not more doctors, is the prescription for aging population

...tice and directing resources to care that has been proven to be effective. They point to large interdisciplinary (or multispecialty) group practices, a structure that has been in place in many parts of the United States since early in the 20th century, as models of both clinical excellence and efficiency. ...

Groovy protein essential for promoting cancer development

...g toward developing that picture, but the task has proven challenging. That's because the enzyme tends to clump together once outside of cells, preventing it from forming the ordered crystals necessary for structural studies. Scientists from Cech's lab and others had tried to simplify matters by crystallizi...

Restoring seagrass beds: Is it for the birds?

...ze the shoal grass beneath them. "Birdstakes have proven successful in the Florida Keys," comments Dr. Heck. "We're placing signs in marinas and along the grassbed borders warning boaters against using their motors in the seagrasses. We'll also monitor the effects the bird droppings are having in the pro...

Nearly half of people who need cholesterol treatment don't get it

...n this country and lipid-lowering therapy has been proven to help prevent it," said Goff, a professor of public health sciences and internal medicine at Wake Forest's School of Medicine, part of Wake Forest University Baptist Medical Center. "Our research illustrates the importance of improving the treatmen...

Scientists develop a way to make the deadliest toxin known even more toxic

...re just a few of the conditions for which BoNT has proven surprisingly effective. The discovery of small molecule activators may ultimately provide a valuable method for minimizing dosage, reducing resistance, and increasing its clinical efficacy." Botulinum neurotoxins are the most lethal poisons known. T...

UF researchers develop ways to keep the bloom on the rose

...by withstanding the test of time. "It is already proven that flowers are the most popular gift to receive, that they consistently increase a sense of individual well-being, and are even capable of increasing creative thought and output in workplace settings," Nell said. "If we can help make floral product...

Study: Competition for sex is a 'jungle out there'

...it's not the only one. Habitat fragmentation is a proven cause of pollen limitation, as well as development. "These findings have global implications given the importance of biodiversity hotspots for medicine, food, nutrient cycling, and alternative resources for pollinators of domesticated crops world wi...

Mice studies illustrate potential of chimp/human antibodies to protect against smallpox

...at causes smallpox. Vaccinia immunization has been proven effective in generating immunity against smallpox virus and other orthopoxviruses, including monkeypox and cowpox. Although most reactions to the vaccinia virus are mild, the vaccine can cause serious and even life-threatening complications in indiv...

Natural selection at single gene demonstrated

...the Holy Grail" of population genetics. "What has proven very difficult is to connect specific molecular changes to selection," Nordborg said. The PLoS paper, along with other recent studies based on intrinsic genomic comparisons, brings biology closer to this goal. ...

Ocean virus identified in human blood samples

...dentified to be statistically relevant but not yet proven as a cause - with abortion, diarrhea, severe respiratory disease and vesicular disease. In another study to be published soon, a population of Thoroughbred mares on horse farms in Kentucky, which was having an unusually high level of spontaneous abo...

Predators keep the world green, ecologists find

...ich herbivores can increase without constraint has proven almost insurmountable." However, the researchers realized that the hypothesis could be tested on a vast hydroelectric project. Within Venezuela's Caroni Valley, an area of 4,300 square kilometres was flooded in 1986 to create a lake (Lago Guri) con...

Some good news for the world's poor

...research just published has confirmed details of a proven strategy to reduce poverty in the planet's two most populous countries, China and India. The research shows that, in 1999, for every US$1 million invested at the Philippines-based International Rice Research Institute (IRRI), more than 800 and 15,00...

New GM mosquito sexing technique is step towards malaria control, report scientists

...ditional females. The release of sterile males has proven effective in controlling several insect pests when methods for sorting sex are available. "Female mosquitoes are responsible for spreading malaria, and also for damage to crops, but they are only able to breed once before dying. By forcing females t...

Viagra's hidden help for wildlife

...1998, no product in any medical tradition had been proven to be an effective and non-intrusive treatment of erectile dysfunction. So despite their history of using traditional medicines and their alleged suspicions of Western medicine, the men we interviewed chose the product that works best." These find...

Sperm trading can resolve hermaphrodite mating conflicts

...lows suit. However, this prediction had never been proven experimentally. In the new work, researchers Nils Anthes, Annika Putz, and Nico Michiels generated individual sea slug hermaphrodites only capable of performing a "dry" copulation--that is, without sperm transfer. Sea slugs that mated with such a "c...

Gene controls whether fear is a factor

...w less reaction to conditions that have previously proven unpleasant, an indication that the mice lack a normal memory for fear. "While one of the best understood memory-related neural circuitries within the mammalian brain is that which controls fear conditioning, little is known about the molecular mecha...

New study shows patients more willing to consider self-injectable HIV therapy than many physicians anticipate

...cians may be reluctant to prescribe a treatment of proven efficacy and safety. The reasons include; the physicians' perception that patients would be reluctant to use a self-injectable therapy, the physicians' opinion that the patient would not be able to incorporate FUZEON into their lifestyle and the pote...

Zebrafish may hold key to improved cancer research

...OSU's Center for Fish Disease Research. "We've now proven that most of the carcinogens that affect humans ar...nes in development and disease. This research has proven that the mechanism of cancer prevention in fish is remarkably similar to that of humans, including t...

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