New research proves single origin of humans in Africa
...single area in Sub-saharan Africa." The research team found that genetic diversity decreased in populati...ng a set of measurements across all the skulls the team showed that not only was variation highest amongst the sample from south eastern Africa but that it ...Fruit fly research may 'clean up' conventional impressions of biology
...al methods from physics and molecular biology, the team has replaced these snapshots with the movie, allow...each one of which is rather sloppy or noisy," said team member William Bialek, the John Archibald Wheeler/Battelle Professor in Physics. "This research, how...Research study describes the role part of the brain plays in memory
...s "recognised" by receptor molecules. The research team examined the possibility of one part of the brain, the prelimbic prefrontal cortex, being linked to the social transmission of food preference. To do so, they applied a chemical compound to the experimental rats that neutralised the acetylcholine rec...Disease-free mosquito bred to disease-carrier can have all disease-free progeny
...delman said. Using the nanos key, the researcher team successfully achieved germline-specific expression of Mos1, an enzyme isolated from the housefly that is a transposable element (TE) -- a piece of genetic material that moves around. Mos1 can also move anything attached to it and can duplicate itself......ork in Mexico in the 1940s, where with a dedicated team of plant specialists he developed wheats that were more productive and disease resistant than the wheat Mexican farmers grew. As a result, Mexico became self-sufficient in wheat production for the first time. Word of what had been done in Mexico spre...Foxes get frisky in the far north
...hnique called microsatellite DNA fingerprinting, a team of researchers from the University of Alberta in Edmonton and the University of Quebec at Rimouski collected DNA samples from 49 arctic foxes trapped in dens on Bylot Island, Nunavut. In three-quarters of the dens, DNA fingerprints showed that the...Study finds hereditary link to premenstrual depression
... provided blood samplesfor genetic analysis. The team discovered four specific genetic variants, called singlenucleotide polymorphisms, in one of the two genes that encode the estrogen receptor. The variants, which are differences in strings of DNA nucleotides A, G, C, or T, were identified in the estro...Better sleep may put Huntington's disease sufferers back on track
...ith perception and learning in healthy people, the team wondered whether the circadian disruption and cognitive disturbances in HD mice were linked. To test this, drugs were administered to regulate sleep patterns in the mice. The results, published today in the Journal of Neuroscience, show that both ...University of Colorado licenses two influenza virus detection discoveries to Quidel Corp.
...nti-Viral Resistance (AVR) Chip was developed by a team of CU-Boulder researchers led by Drs. Kathy Rowlen and Robert Kuchta. Quidels intent is to develop and market diagnostic tests featuring the chip for use in identifying mutations that may complicate influenza treatment decisions. The chip detects ...Malaria -- Effective insecticide-repellent synergy against mosquito vectors
...ns did not match the researchers expectations. The team consequently envisage working in conjunction with a company able to devise a system for encapsulating the mixture to prolong the residual life of treated mosquito nets. The efficacy of these mixtures between organophosphates and repellents therefore...Vaccine trials inject hope into koala's future
...reat of chlamydia in koalas. QUT's koala vaccine team also includes Professor Ken Beagely and PhD student Asad Sukar. "While we have funding for the initial trial we are hoping to attract additional financial support for us to be able to continue this important work," he said. "We seem to be doing g...Immune system 'escape hatch' gives cancer cells traction
...hy cancer cells, marking them for destruction, the team reports. The good news, they say, is that thei...cells were inactivating the T cells. The Florida team then turned to Schneck, who in 1993 developed several novel proteins to test how various antigens, s...Metabolic syndrome -- don't blame the belly fat
...h the help of powerful new imaging technologies, a team of Howard Hughes Medical Institute (HHMI) researchers at Yale University School of Medicine has found that insulin resistance in skeletal muscle leads to alterations in energy storage that set the stage for the metabolic syndrome. Insulin resistance...Stem cell specialists face questioning
...eakers at the conference is Shinya Yamanaka, whose team at Kyoto University in Japan is pioneering ways of producing stem cells from adult human cells and therefore avoiding the need for embryos....Scientists take next step in understanding potential target for ovarian cancer treatment
...called km23, the traffice cop protein, because the team previously found altered forms of the protein in 4...ormally function. In the current study, Mulders team found that blocking km23 from doing its job in the TGF- signaling system disrupted the transport of ...Manchester University helps with pharaoh DNA analysis
...e for Biomedical Egyptology, advised and trained a team led by Dr Yehia Gad in Egypt in techniques of extr...e of the mummies actually damage their DNA but the team was able to extract small amounts of genetic information from the areas of the mummies least affecte...Gene discovered for type 1 diabetes in children
...under control. As the project continues, the study team expects to identify additional genes (perhaps as m...mosome 16, occupied by a gene called KIAA0350. The team then replicated this discovery in yet another independent cohort of 1,333 children with the disease ...A new plant-bacterial symbiotic mechanism promising
...rate zones, very little those of the tropics. The team from the IRDs Laboratoire des Symbioses Tropicales et Mditerranennes and its partners (1), taking as model a symbiosis between a tropical aquatic legume, Aeschynomene, and Bradyrhizobium, bacteria of the Rhizobia family, have just revealed a new mode......give our patients better outcomes. Olson led the team that included neurosurgeons, engineers and biologi...ory at the Hutchinson Center. In mouse models, the team demonstrated that they could light up brain tumors as small as 1 millimeter in diameter without ligh......rning from conflict in Iraq and Afghanistan. The team will report their results in the July 15 advance online publication of Nature Neuroscience. A study conducted by the Army in 2004 found that one in eight soldiers returning from Iraq reported symptoms of post-traumatic stress disorder (PTSD). Acco...