Studies identify DNA regions linked to nicotine dependence
... twins previously concluded that the clustering is partly related to genetic factors. An important aspect of these latest studies is that rather than comparing smokers to non-smokers, the researchers compared addicted smokers to non-addicted smokers. "You're not at risk for nicotine dependence unless you'...Are some people immune to avian flu?
...containing huN1 makes mice produce antibodies that partly protect them against avian H5N1 infection. In addition, the human data suggest that a proportion of people have low titer antibodies against H5N1 influenza because of prior exposure to H1N1 viruses or routine influenza vaccination. As Laura Gillim...Male-killing bacteria makes female butterflies more promiscuous
...s to continue the population successfully. This is partly because the decision to mate is mainly under female control and because males have a high mating capacity." This study was carried out on Hypolimnas bolina butterflies in Pacific Island and South-East Asian populations. The islands provide an ideal...Sea creature's toxin could lead to promising cancer treatment
...ional Institute of General Medical Sciences, which partly funded the work. "Not only has this UT Southwestern team identified a potent anti-cancer drug, but its unique mode of action avoids the kinds of side effects that make cancer chemotherapy so difficult. It's a great example of how NIH support for fund...Investigating the invisible life in our environment
...s only change slowly throughout evolution, perhaps partly due to long dormancy phases during winter. In collaboration with Phil Hugenholtz and Susannah Green Tringe from the Joint Genome Institute in Walnut Creek, California, Bork and his colleagues also investigated whether habitat preferences of microbe...Cypress replanting unsuccessful without dual cultivation with lavender or mycorrhizal fungi
Morocco possesses a rich and varied flora, owing partly to its great diversity of relief and landscapes. However, advancing erosion and processes of desertification, combined with the development of human activities, are damaging this biodiversity. One of the representative species of this flora, the cypr...Whitefly spreads emerging plant viruses
...wn said. B. tabaci has proven difficult to control partly because of its tendency to develop insecticide resistance. "As the population levels of the whitefly B. tabaci continue to remain robust, new species of plant viruses will continue to emerge and cause damaging diseases in food and fiber crops," Br...Toward more effective paleolgenetic analysis
...ses were often subject to a high failure rate, due partly to a lack of any ancient DNA detected by PCR , or to contamination by modern DNA. An extensive study of around 250 fossil bones from 600 to 50 000 year old herbivores was carried out thanks to international cooperation between the Institut Jacques ...Dinosaurs -- stones did not help with digestion
...ontrary, the surface of the stones, which had been partly smooth, became rough in the stomachs during the experiments. The mass of the stones then corresponded on average to one per cent of the body mass of the birds. 'Whereas occasionally stones were found together with sauropod skeletons, we don't think...Sniffers show that humans can track scents, and that two nostrils are better than one
... other mammals. "Our sense of smell is less keen partly because we put less demand on it," Porter said. "But if people practice sniffing smells, they can get really good at it."...Project to intensify agricultural production in Great Lakes -- Africa's most impoverished region
..., reduce poverty, and promote peace and stability, partly by establishing or strengthening the capacities of farmer and agri-input dealer organizations. IFDC will work through farmers' organizations, several national and international NGOs, the private sector, donors, and other consortia. Dr. Henk Breman,...Found -- the apple gene for red
...llaboration between CSIRO and the DAFWA, which has partly funded the project with a voluntary contribution. The project has been facilitated by Horticulture Australia Ltd (HAL) in partnership with industry and has been funded as part of HAL's 'across industry program'. The Australian Government provides mat......ulation structure of Typhi were poorly understood, partly because these bacteria show little genetic diversity. Now a team led by Mark Achtman and Philippe Roumagnac from the Max Planck Institute for Infection Biology, Berlin, has applied population genetic experience from prior work with Yersinia pestis, E...High HPV concentrations combined with smoking significantly raise risks of cervical cancer
...of careful monitoring." The study, which also may partly explain why some women may not get cervical cancer despite smoking behavior or being HPV-positive, had too few women with high viral loads for the researchers to declare both smoking and HPV, by themselves, caused the disease. But since it was one of......during the last interglacial, but it may have been partly due to a reduction in the ocean's ability to take up atmospheric carbon, as the seas warmed. Today CO2 levels are even higher, at 380 parts per million with the additional 100 ppm being mainly due to human activities. Prof. McCulloch says the oce...Pediatrics study shows no link between juice and children's weight
...much to drink, how much to serve their children -- partly because of the natural sweet taste of fruit juice. According to Theresa Nicklas, professor of pediatrics at the Baylor College of Medicine, parents should be confident serving their children appropriate amounts of 100 percent fruit juice. Approp...Diabetes gene carries similar risk to obesity
... Wilson, Director of Research at Diabetes UK which partly funded the study, said: "The findings of this research are very exciting, as Type 2 diabetes results from a complex mix of genetic and lifestyle factors. "If we can improve our understanding as to why people with certain genes are more likely to ...'Drunk' fruit flies could shed light on genetic basis of human alcohol abuse
...al. find that the development of tolerance is only partly dependent on initial sensitivity to ethanol....Resistance and genetic sensitivity to sleeping sickness
... the acute one provoked by T. b. rhodesiense, only partly reflect the real mechanisms at work. Concerning the Gambian form, the screening and treatment teams indicates the occurrence of several categories of subjects infected: some show Glossina fuscipes gorged with blood affected by classical chronic forms......ersus contact lenses can not be compared directly, partly because complications from contact lenses accumulate over years of use, and complications from surgery occur soon after the surgery. Data extrapolated from a study in Lancet shows the lifetime risk of bacterial keratitis to be 1 in 100 for contact...