Air pollutants lead to age-related muscle declineSeptember 23rd, 2009 WASHINGTON - Scientists have come up with new ways to stop by-products from the air we breathe from harming our muscles. Atanu Duttaroy, associate professor of biology at Howard University in Washington, D.C., and colleagues have shown how about 3 percent of the air we breathe gets converted into harmful superoxides, which ultimately harm our muscles.
Like humans, fruit flies too learn from experienced femalesSeptember 17th, 2009 WASHINGTON - Like humans, novice fruit flies tend to learn from their more experienced counterparts i.e. mated fruit flies, say researchers.
What makes us uniquely humanSeptember 2nd, 2009 WASHINGTON - In a remarkable piece of detective work, scientists working at Trinity College Dublin have discovered three genes that are unique to humans. In the study published online in Genome Research, boffins have made a crucial discovery of genes that have evolved in humans after branching off from other primates.
Newly found natural odours could pave way for developing mosquito repellentsAugust 27th, 2009 LONDON - In a lab study on fruit flies, entomologists led by an Indian origin scientist at the University of California, Riverside, have discovered a novel class of compounds that could help in developing inexpensive and safe mosquito repellents for combating West Nile virus and other deadly tropical diseases. Under stress, fruit flies emit carbon dioxide (CO2) that serves as a warning to other fruit flies that danger or predators could be nearby.
Female fruit flies prefer keeping sex short to get a reproductive boostAugust 22nd, 2009 WASHINGTON - A new study has shown that female fruit flies prefer keeping sex short and sweet because they get a reproductive boost from shorter intercourse. Since males like sex to last longer, a fight ensues.
Insects' bio-clocks could help more effective pest controlAugust 13th, 2009 WASHINGTON - Researchers have discovered that the circadian rhythms or biological "clocks" in some insects can make them far more susceptible to pesticides at certain times of the day than other. With further research, it may be possible to tap into this genetic characteristic, identify the times that a target insect is most vulnerable to a specific pesticide, and use that information to boost the effectiveness of a pesticide.
Flies can pick up and transfer toxic nanomaterials to habitats in environmentAugust 6th, 2009 WASHINGTON - A new study raises the possibility that flies and other insects that encounter nanomaterial "hot spots," or spills, near manufacturing facilities in the future could pick up and transport nanoparticles on their bodies, transferring the particles to other flies or habitats in the environment. The study, by David Rand and Robert Hurt and colleagues, notes that emergence of a nanotechnology industry is raising concerns about the potential adverse health and environmental effects of nanoparticles.
Chemical helps female flies say buzz offJuly 17th, 2009 WASHINGTON - A chemical produced by male fruit flies and transferred to females during mating enables the female to tell other males to buzz off. Harvard Medical School (HMS) researchers, along with German colleagues, discovered the chemical pheromone, which they named CH503.
New pheromone helps female fruit flies tell potential mates to 'buzz off'July 17th, 2009 WASHINGTON - Scientists at the Harvard Medical School have discovered a previously unidentified pheromone that contributes to the anti-aphrodisiac effects observed in female fruit flies after copulation. In study, which has been published in Current Biology, Harvard Medical School (HMS) researchers, along with German colleagues, report on a newly discovered pheromone produced by male fruit flies.
Myth that fasting leads to longer life spans debunkedJuly 14th, 2009 WASHINGTON - In a study on fruit flies, scientists have debunked the belief that fasting extends life spans in various organisms, including humans, when they suffer infection. In their study, researchers at Stanford University School of Medicine wanted to see if reduced caloric intake also helps creatures cope with infection.
Happiness 'can be inherited'May 15th, 2009 WASHINGTON - Our feelings in our lifetime can affect our children, concludes a new study. Dr Alberto Halabe Bucay led the study published in Elsevier's journal Bioscience Hypotheses.
Scientists identify genes that determine right warfarin doseMarch 21st, 2009 WASHINGTON - Researchers at Uppsala University, together with colleagues at Karolinska Institute and Sanger Institute, have identified three genes that would help determine the optimal dose of blood-thinning drug warfarin. The team led by Mia Wadelius have come across three genes VKORC1, CYP2C9, and CYP4F2 that would help determine adequate warfarin dosage.
Genes linked to spinal disc degeneration identifiedMarch 14th, 2009 WASHINGTON - Researchers from University of Alberta have identified certain genes responsible for spinal disc degeneration. Michele Crites-Battie and Tapio Videman, in the Faculty of Rehabilitation Medicine, have discovered eight genes linked to lumbar disc degeneration.
Fruit flies use evolved antennae to detect wind directionMarch 13th, 2009 WASHINGTON - Scientists at Caltech University, US, have discovered that fruit flies have evolved a specialized population of neurons in their antennae that let them know not only when the wind is blowing, but also the direction from which it is coming. The behavior of fruit flies in the face of a stiff breeze is remarkable in and of itself, according to David J.
Scientists identify mechanism that can prolong life in 'Indy' fruit fliesJanuary 22nd, 2009 WASHINGTON - Scientists have identified a cellular mechanism in mutated 'Indy' fruit flies that could help prolong life by cutting down the output of free radicals. The finding by Stephen Helfand and Nicola Neretti of Brown University and others adds another piece to the puzzle that Helfand, a professor of biology first discovered in 2000.
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