Washington, November 6 : A PhD student at Sydney's Garvan Institute of Medical Research has made a significant advance towards understanding exactly how insulin prompts fat and muscle cells to absorb glucose, a problem that has puzzled researchers for over 50 years.
"Since the 1920s, when Banting and Best discovered insulin, scientists have been battling to discover how it actually works," said Professor David James, head of Garvan''s Diabetes Program.
"Then along comes Freddy Yip, doing his PhD, who unveils a completely novel action of insulin, one which we believe plays a fundamental role in glucose uptake, a process that is defective in Type 2 diabetes," he added.
London, Nov 6: A team of researchers has shown that a molecule called Cyclophilin D (CypD) interacts with amyloid beta (Aâ) peptide, the main constituent of plaques in the brains of Alzheimer''s patients, within the mitochondria.
The study involving a transgenic mouse model of Alzheimer’s disease suggests that blocking CypD and development of surrounding mitochondrial targets may be viable therapeutic strategies for the prevention and treatment of Alzheimer’s disease, reports Nature.
Washington, Nov 6: Alaska Governor Sarah Palin has dismissed reports that she is a ‘diva’, insisting that she never made unreasonable demands on the McCain campaign during her time as a vice presidential nominee.
Speaking to TV reporters in Phoenix, Palin said that rumours of tension between her and Republican nominee John McCain and members of his staff were ‘absolutely false.’
Washington, Nov 6 : Women who have a history of migraine headaches are at a significantly lower risk of breast cancer, a new study has found.
The findings have been reported in the November issue of Cancer Epidemiology, Biomarkers and Prevention by Christopher I. Li, M. D., Ph. D., and colleagues at Fred Hutchinson Cancer Research Center.
"We found that, overall, women who had a history of migraines had a 30 percent lower risk of breast cancer compared to women who did not have a history of such headaches," said Li, a breast-cancer epidemiologist and associate member of the Hutchinson Center''s Public Health Sciences Division.
Washington, Nov 6: The life of Mars Phoenix Lander is literally hanging by a thread, with the solar-powered probe running out of sunlight, a condition that is being described by scientists as the ‘Hospice’ mode.
According to a report in Discovery News, compared to NASA’s long-lived Mars rovers, the ice-sampling Phoenix lander is presently in a communications coma, just five months after touchdown.
But, there is nothing engineers could have done to fix the fundamental problem.