Discovery clarifies role of peptide in biological clock
...ormally synchronized as a well-oiled marching band coming onto the field at half time. Herzog and graduate student, Sara Aton, found that mice lacking the gene that makes VIP or lacking the receptor molecule for VIP suffer from internal de-synchrony. When they recorded the electrical activity of SCN neuro...Oceans more vulnerable to agricultural runoff than previously thought, study finds
...he same way the Gulf of California is to nutrients coming off the land," Matson said. "Inarguably, the effects of marine nitrogen pollution are becoming extremely widespread and severe as a consequence of the global expansion of industrialized agriculture and the intensification of certain practices," the a...Grizzlies set to invade high Arctic?
... and this complex but exciting environment is just coming into focus for Canadians in general. It's now a mainstream issue."...Scientists discover how fish evolved to float at different sea depths
...sh to float at different levels in the sea without coming to the surface of the water for air. A similar system is also present in the eye of the fish, which provides oxygen to the retina. Dr Berenbrink explains: "I am interested in how the mechanisms in the swimbladder and eye could have evolved. Some fis...VUMC researchers find drug-resistant bacteria MRSA a growing threat
...he said. "These are young healthy children who are coming in for well child visits and they have the resistant organisms in their noses." Creech says the next mystery to be solved is why MRSA is increasing in healthy people. "This study tells us there are a lot of children walking around with MRSA who are...Two UT Southwestern researchers named Howard Hughes Medical Institute investigators
... the Memorial Sloan Kettering Cancer Center before coming to UT Southwestern in 2001. "It's a tremendous honor to be recognized by the Howard Hughes Medical Institute," Dr. Rosen said. "Being an HHMI investigator gives me the opportunity to do daring research with the highest potential impact, and UT South...Study supports use of aspirin in treating pregnancy disorder
...Pennsylvania, where Dr. Funk was on faculty before coming to Queen's through a Canadian Institutes of Health Research (CIHR) program. Pre-eclampsia, which strikes five to 10 per cent of all pregnancies, is characterized by high blood pressure in the mother, and is one of the leading causes of baby and mater...Research warns against sleeping in contact lenses
...ity's Faculty of Life Sciences. He said: "Patients coming to the hospital with acute eye problems were asked to supply details of lens type and pattern of wear, including whether they slept in their lenses. "Four types of lenses were studied rigid, hydrogel daily disposable, hydrogel and silicone hydrogel ...Introduced foxes transformed vegetation on Aleutian Islands from lush grasslands to tundra
...he subsidies by interrupting the flow of nutrients coming from offshore," Croll said. "It transformed the plant community from one that does well in nutrient-rich conditions to one that does well in nutrient-depleted conditions." Foxes were first introduced to some of the islands by Russian fur traders in t...Researchers reveal the infectious impact of salmon farms on wild salmon
...n spread to other previously unexposed populations coming from geographically disparate regions. "At about the 30 km mark from the farm, those lice become reproductive," says Volpe. "In effect, the farm has exported its lice generating properties a cyclical event establishing the potential for re-infectio...'Free-for-all' illegal logging of mahogany in Peruvian parks, says Duke-based monitoring group
...to the field and verify exactly where the logs are coming from." Martinez previously coordinated a Conservation International study that established the exceptional high density of mahogany stands growing in the Alto Purs area. "When we say 'high densities of commercially viable mahogany' we're talking abou...Community MRSA is re-emergence of 1950s pandemic, study suggests
...uld pose such a serious public health challenge in coming years. "The community acquired MRSA clone has a toxin and other traits with a proven track record for causing serious diseases in healthier and younger age groups than those currently regarded as at risk. The increased resistance to antibiotics of th...Rounduphighly lethal to amphibians, finds University of Pittsburgh researcher
...eepers, was unaffected. "The most shocking insight coming out of this was that Roundup, something designed to kill plants, was extremely lethal to amphibians," said Relyea, who conducted the research at Pitt's Pymatuning Laboratory of Ecology. "We added Roundup, and the next day we looked in the tanks and t...Unlocking genetic mysteries focus of UH symposium
...il 1, 2005 Biologists and computer scientists are coming together at the University of Houston to explore the mysteries of genetic material and its potential for leading to advances in evolutionary biology and human health. The event is free and open to the public. A daylong symposium Computational Mol...Chemical compounds present in diet increase risk of colon cancer
...olychlorinated biphenyls. They are toxic compounds coming from industrial processes, which are absorbed into the body through what we eat. At the same time, the team studied patients affected by colon cancer and two genes implicated in the cancer's development: the K-Ras oncogene and the P53 tumour suppres...15 generations of untrained jocks, couch potatoes show big physiological adaptations
...Results of this large longitudinal study have been coming out generation by generation, and now a group of researchers at the University of California, San Diego have found some surprising results at generation #15 (G15), compared with G7. The G7 untrained rats from the "athletic" line had a greater running...Positive air pressure chamber started with patients quickly after surgery
... the impact on the treadmill, the patient's weight coming down on each step, or "off-loading" in physiological terms, can be precisely adjusted based on the amount of air pressure placed in the chamber, first allowing for almost no impact after surgery, then offering more weight-bearing as the patient's coo...Understanding natural killers could lead to new hepatitis treatments
...ls with the blood flow and when they are activated coming to a stop and then crossing through vessel walls in response to a signal." The researchers observed that the roving NKT cells stopped their movement when alerted by a foreign protein, called an antigen, "We think this is a reflection of their normal ...Ophthalmologists and physicists team up to design 'bionic eye'
... with normal vision cannot see the infrared signal coming out of a TV remote control, this infrared flower image is also invisible to normal photoreceptors. But for those sporting retinal implants, the infrared flower electrically stimulates the implant's array of photodiodes. The result? They may not have ...New alloy verified for safer disposal of spent nuclear energy fuel
...for spent nuclear fuel storage applications before coming up against major obstacles to the production of those alloys using conventional hot working techniques....