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Biology RSS FeedsFirst trachea transplant without immunosuppression - Tissue engineering has made possible this doubly innovative operation - the first trachea transplant and the first tissue transplant to be performed without the need for immunosuppression. Professor Paolo Macchiarini, Head of the thoracic surgery department of Hospital Clínic has led the basic research and the international team formed by the universities of Bristol, Padua and Milan, who contributed to this success. The transplanted tissue is a hybrid from a donor that was repopulated with stem and epithelial cells from the recipient. Five months later, Claudia Castillo, who required the operation to save a lung following tuberculosis, is in perfect health. ...Feed Source: feeds.feedburner.com Deep brain mapping to isolate evidence of Gulf War syndrome - Researchers at Southern Methodist University in Dallas are pioneering the use of spatial statistical modeling to analyze brain scan data from Persian Gulf War veterans, aiming to pinpoint specific areas of the their brains affected by Gulf War Syndrome.
... Worker ants of the world, unite! You have nothing to lose but your fertility - The highly specialized worker castes in ants represent the pinnacle of social organization in the insect world. As in any society, however, ant colonies are filled with internal strife and conflict. So what binds them together? More than 150 years ago, Charles Darwin had an idea and now he's been proven right.
... Researchers: Ban on fast food TV advertising would reverse childhood obesity trends - A ban on fast food advertisements in the United States could reduce the number of overweight children by as much as 18 percent, according to a new study being published this month in the Journal of Law and Economics. The study also reports that eliminating the tax deductibility associated with television advertising would result in a reduction of childhood obesity, though in smaller numbers.
... Scientists sequence woolly-mammoth genome - Scientists at Penn State are leaders of a team that is the first to report the genome-wide sequence of an extinct animal, according to Webb Miller, professor of biology and of computer science and engineering and one of the project's two leaders. The scientists sequenced the genome of the woolly mammoth, an extinct species of elephant that was adapted to living in the cold environment of the northern hemisphere. They sequenced four billion DNA bases using next-generation DNA-sequencing instruments and a novel approach that reads ancient DNA highly efficiently.
... How do bacteria swim? Brown physicists explain - Imagine yourself swimming in a pool: It's the movement of your arms and legs, not the viscosity of the water, that mostly dictates the speed and direction that you swim.
... New imaging technique tracks cancer-killing cells over prolonged period - Coaxing a patient's own cells to hunt down and tackle infected or diseased cells is a promising therapeutic approach for many disorders. But until now, efforts to follow these specially modified cells after their reintroduction to the body have relied on short-term monitoring techniques that don't give a complete picture of the cells' status.
... Australian first: Kangaroo genome mapped - Australian researchers will today launch the world first detailed map of the kangaroo genome, completing the first phase of the kangaroo genomics project.
... Why HIV treatment makes people so susceptible to heart disease and diabetes - Clinicians have known for some time that people treated for HIV also become much more susceptible to diabetes and heart disease. A study by scientists at Sydney's Garvan Institute of Medical Research has now shown some of the reasons why ? enabling better patient management and monitoring.
... New study bolsters beliefs about DNA repair - Aucott et al. report the first in vivo experiments on the heterochromatin protein 1 (HP1) family, which sidles up to silent DNA. The results, to be published in the Nov. 17 issue of the Journal of Cell Biology, add to the evidence that the different versions of the proteins help cells fix broken DNA.
... Microarray analysis improves prenatal diagnosis - A "chip" or array that can quickly detect disorders such as Down syndrome or other diseases associated with chromosomal abnormalities proved an effective tool in prenatal diagnosis in a series of 300 cases at Baylor College of Medicine, said researchers in a report that appears in the current issue of the journal Prenatal Diagnosis.
... New life beneath sea and ice - Scientists have long known that life can exist in some very extreme environments. But Earth continues to surprise us.
... Sleep helps people learn complicated tasks - Sleep helps the mind learn complicated tasks and helps people recover learning they otherwise thought they had forgotten over the course of a day, research at the University of Chicago shows.
... Cooling the brain prevents cell death in young mice exposed to anesthesia - New research from Washington University School of Medicine in St. Louis suggests cooling the brain may prevent the death of nerve cells that has been observed in infant mice exposed to anesthesia. The effects of anesthesia on human infants and young children have been debated among neuroscientists, but growing evidence suggests exposure to anesthetic drugs during brain development may contribute to behavioral and developmental delays.
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