News tagged with experimental biology
Two is not company -- as far as fish are concerned
Jun 29, 2009 |
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Research at the Universities of Plymouth and Exeter has shown that fish kept alone or in small groups are more aggressive and exhibit fewer natural behaviors such as shoaling. Dr Katherine Sloman will discuss the findings ...
Super-sleepers could help super-sizers!
Jun 29, 2009 |
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Burrowing frogs can survive buried for several years without food or water. Scientists have discovered that the metabolism of their cells changes radically during the dormancy period allowing the frogs to ...
Ozone depletes oil seed rape productivity
Jun 29, 2009 |
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With rising ozone levels scientists have found that high ozone conditions cause a 30 percent decrease in yield and an increase in the concentration of a group of compounds with toxic effects to livestock, but anticarcinogenic ...
Mice run faster on high-grade oil
Jun 29, 2009 |
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Between the 1932 and 2008 Olympic Games, world record times of the men's 100m sprint improved by 0.6 seconds. Scientists at the Research Institute of Wildlife Ecology in Austria have shown that an equivalent improvement can ...
Dolphins get a lift from delta wing technology
Jun 26, 2009 |
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We can only marvel at the way that dolphins, whales and porpoises scythe through water. Their finlike flippers seem perfectly adapted for maximum aquatic agility. However, no one had ever analysed how the animals' ...
Get a grip! Blistering new evidence on why we have fingerprints
May 29, 2009 |
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(PhysOrg.com) -- Fingerprints do not help primates grip, as previously thought, scientists have discovered. They actually reduce the friction needed to hold onto flat surfaces. Now Dr Roland Ennos and his ...
Caffeic acid inhibits colitis in a mouse model -- is a drug-metabolizing gene crucial?
May 26, 2009 |
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Researchers at Iowa State University have found that increased expression of a form of cytochrome P-450 (CYP4B1) is a key marker of inhibition of colitis in mice by caffeic acid, an anti-inflammatory antioxidant compound ...
Dolphins maintain round-the-clock visual vigilance
May 01, 2009 |
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Dolphins have a clever trick for overcoming sleep deprivation. Sam Ridgway from the US Navy Marine Mammal Program explains that they are able to send half of their brains to sleep while the other half remains ...
Mosquito parasite may help fight dengue fever
May 01, 2009 |
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Dengue fever is a terrible viral disease blighting many of the world's tropical regions. Carried by mosquitoes, such as Aedes aegypti, 40% of the world's population is believed to be at risk from the infect ...
Regulation of cell proliferation by the OGF-OGFr axis is dependent on nuclear localization signals
Apr 23, 2009 |
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Researchers at The Pennsylvania State University College of Medicine, Hershey, Pennsylvania have discovered that the efficacy of the Opioid Growth Factor (OGF, [Met5]-enkephalin), a clinically important antitumor agent, is ...
Benefit of grapes may be more than skin deep
Apr 22, 2009 |
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Can a grape-enriched diet prevent the downhill sequence of heart failure after years of high blood pressure?
First compound for receptors in schizophrenia and Alzheimer's holds promise
Apr 20, 2009 |
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For almost 20 years, pharmacological companies have known that certain compounds that activate two specific CNS receptors, causing them to release the neurotransmitter acetylcholine, are effective in treating the cognitive ...
Chewing gum reduces snack cravings and decreases consumption of sweet snacks
Apr 19, 2009 |
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Men and women who chewed Extra® sugar-free gum three times hourly in the afternoon chose and consumed less snacks and specifically, less sweet snacks than they did when they did not chew gum. They still reached for a variety ...
THC exposure as adolescents linked to negative effects of THC as adults
Apr 19, 2009 |
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In earlier studies, researchers at Louisiana State University had found that estrogen - or more precisely, having ovaries - made adult rats exposed for the first time to THC, the primary ingredient in marijuana and hashish, ...
Newly discovered epidermal growth factor receptor active in human pancreatic cancers
Apr 19, 2009 |
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Finally some promising news about pancreatic cancer, one of the most fatal cancers, due to the difficulties of early detection and the lack of effective therapies: Johns Hopkins University pathologist Akhilesh Pandey has ...
