‘Longevity gene’ (SIRT6) responsible for more efficient DNA repair

by Lindsey Valich Explorers have dreamt for centuries of a Fountain of Youth, with healing waters that rejuvenate the old and extend life indefinitely. Researchers at the University of Rochester, however, have uncovered more evidence that the key to longevity resides instead in a gene. In a new paper published in the journal Cell, theContinue reading “‘Longevity gene’ (SIRT6) responsible for more efficient DNA repair”

Forever young: study uncovers protein that keeps skin youthful.

Beauty might only be skin deep, but for those wondering how to keep that skin young, scientists may have found an answer in the form of a protein that encourages cell competition. The prosaically named COL17A1 might not sound like a fountain of youth, but the new study suggests it does the heavy lifting whenContinue reading “Forever young: study uncovers protein that keeps skin youthful.”

Stress Test-Based Physiological Age May Be Superior Mortality Predictor

Estimated age based on exercise stress testing performance may be a better predictor of mortality than chronological age, according to a study published online Feb. 13 in the European Journal of Preventive Cardiology. Serge C. Harb, M.D., from the Cleveland Clinic, and colleagues evaluated whether age based on stress testing exercise performance (A-BEST) would beContinue reading “Stress Test-Based Physiological Age May Be Superior Mortality Predictor”

New major study shows that there is no healthy level of alcohol consumption

Even the occasional drink is harmful to health, according to the largest and most detailed research carried out on the effects of alcohol, which suggests governments should think of advising people to abstain completely. The uncompromising message comes from the authors of the Global Burden of Diseases study, a rolling project based at the UniversityContinue reading “New major study shows that there is no healthy level of alcohol consumption”

How restricting calories might offer protection against age-related diseases

Instead of survival of the fittest, evolution might actually be about survival of the laziest. That’s according to a new study published Tuesday in the journal The Royal Society. Researchers from the University of Kansas studied fossils of ancient mollusks and gastropods, and found that organisms with higher metabolic rates were more likely to goContinue reading “How restricting calories might offer protection against age-related diseases”

Depression speeds up brain ageing

Psychologists at the University of Sussex have found a link between depression and an acceleration of the rate at which the brain ages. Although scientists have previously reported that people with depression or anxiety have an increased risk of dementia in later life, this is the first study that provides comprehensive evidence for the effectContinue reading “Depression speeds up brain ageing”

Clock Nucleus and Aggression Centres Linked, Implication For Alzheimer’s Treatment

A research team at University of Copenhagen including a researcher from the Faculty of Health and Medical Sciences has discovered a circuit in the brains of mice connecting circadian rhythm to aggressive behaviour. The discovery is particularly interesting to Alzheimer’s patients who experience increased aggression at night. The researchers have developed special protein tools capableContinue reading “Clock Nucleus and Aggression Centres Linked, Implication For Alzheimer’s Treatment”

New research shows that human make lots of new nerve cells in the brain well into old age.

Roughly the same number of new nerve cells (dots) exist in the hippocampus of people in their 20s (three hippocampi shown, top row) as in people in their 70s (bottom). Blue marks the dentate gyrus, where new nerve cells are born. BY LAUREL HAMERS Healthy people in their 70s have just as many young nerveContinue reading “New research shows that human make lots of new nerve cells in the brain well into old age.”

Anxiety may be an early indicator of Alzheimer’s disease

lzheimer’s disease is a neurodegenerative condition that causes the decline of cognitive function and the inability to carry out daily life activities. Past studies have suggested depression and other neuropsychiatric symptoms may be predictors of AD’s progression during its “preclinical” phase, during which time brain deposits of fibrillar amyloid and pathological tau accumulate in aContinue reading “Anxiety may be an early indicator of Alzheimer’s disease”

Some video games are good for older adults’ brains

If you’re between 55 and 75 years old, you may want to try playing 3D platform games like Super Mario 64 to stave off mild cognitive impairment and perhaps even prevent Alzheimer’s disease. That’s the finding of a new Canadian study by Université de Montréal psychology professors Gregory West, Sylvie Belleville and Isabelle Peretz. PublishedContinue reading “Some video games are good for older adults’ brains”