A search for the molecular clues of longevity has taken Mayo Clinic researchers down another path that could explain why some people who consume excessive calories don’t gain weight. The study, which was done in laboratory mouse models, points to the absence of a gene called CD38. When absent, the gene prevented mice on high-fat diets from gaining weight, but when present, the mice became obese.

The findings were published this month in the online issue of The FASEB Journal, the journal of the Federation of American Societies for Experimental Biology.

Children suffering from pneumonia could be spared the pain of the doctor’s needle, thanks to new research funded by the British Lung Foundation.

The study, a world-first carried out by researchers at The University of Nottingham, discovered that children given oral treatment recovered as quickly, suffered less pain, required less oxygen therapy in hospital and were able to go home sooner than those given injections.

Two-and-a-half million children are affected by pneumonia each year in Europe. Until now, most children have been admitted to hospital and treated with injected antibiotics.

People on polar expeditions can undergo serious negative psychological changes as they struggle to adapt to their isolated, extreme and confined environment; but also positive changes due to sense of achievement after having coped with such a stressful situation.

Dr Lawrence Palinkas, University of Southern California, Los Angeles, USA and Dr Peter Suedfeld, University of British Columbia, Vancouver, did a review of published data on polar expeditions, specifically focussing on psychological or social dimensions of behaviour.

The authors say: “Polar expeditions include treks and stays at summer camps or year-around research stations.

Researchers at UT Southwestern Medical Center have determined how a substance derived from the bark of the South American lapacho tree kills certain kinds of cancer cells, findings that also suggest a novel treatment for the most common type of lung cancer.

The compound, called beta-lapachone, has shown promising anti-cancer properties and is currently being used in a clinical trial to examine its effectiveness against pancreatic cancer in humans. Until now, however, researchers didn’t know the mechanism of how the compound killed cancer cells.

For more than 100 years, scientists have known that humans carry a rich ecosystem within their intestines. An astonishing number and variety of microbes, including as many as 400 species of bacteria, help humans digest food, mitigate disease, regulate fat storage, and even promote the formation of blood vessels.

By applying sophisticated genetic analysis to samples of a year’s worth baby poop, Howard Hughes Medical Institute researchers have now developed a detailed picture of how these bacteria come and go in the intestinal tract during a child’s first year of life.

Dr. Zahi Hawass, Secretary General of the Supreme Council of Antiquities in Egypt, sent out this announcement:

On Wednesday (27/6/2007) at 11:00 a.m Culture Minster Farouk Housni and Dr. Zahi Hawass Secretary General of the Supreme Council of Antiquities (SCA) will hold an International Conference at the Egyptian Museum in Tarir in Room 43 to announce the Identification of Hatshepsut's mummy .

Please come to attend the event at 10:00 am. at the Egyptian Museum in order to fix cameras and TV crews.

This is being called the most important discovery in the Valley of the Kings since King Tutankhamun.