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Mortality risks of being overweight or obese are underestimated

Mortality risks of being overweight or obese are underestimated

New research by Andrew Stokes, a doctoral student in demography and sociology in the School of Arts and Sciences at the University of Pennsylvania, suggests that many obesity studies substantially underestimate the mortality risks associated with excess weight in the United States. His study, “Using Maximum Weight to Redefine Body Mass Index Categories in Studies of The Mortality Risks of Obesity,” was published in the March issue of the open-access journal Population Health Metrics Continue reading

Race now or later? Calculating best time to compete after altitude training

Race now or later? Calculating best time to compete after altitude training

Date: April 3, 2014 Source: American Physiological Society (APS) Summary: A number of studies focus on the optimal time to begin altitude training before competition, but few address the best time to come down from altitude and how long athletes should wait to reacclimatize before competing. Researchers search for the answers in the new review article. Altitude training is a popular practice used by elite athletes to improve endurance in competitions, such as marathons and cycling races, that take place at sea level. Continue reading

Marriage linked to lower heart risks in study of more than 3.5 million adults

Marriage linked to lower heart risks in study of more than 3.5 million adults

People who are married have lower rates of several cardiovascular diseases compared with those who are single, divorced or widowed, according to research to be presented at the American College of Cardiology’s 63rd Annual Scientific Session. The relationship between marriage and lower odds of vascular diseases is especially pronounced before age 50 Continue reading

Comeback of an abandoned antibiotic: Trimethoprim

Comeback of an abandoned antibiotic: Trimethoprim

Scarlet fever and infections of the skin and throat are often caused by a bacterium called Streptococcus pyogenes . Continue reading

Scientists track evolution of a superbug

Scientists track evolution of a superbug

Date: March 17, 2014 Source: NIH/National Institute of Allergy and Infectious Diseases Summary: Using genome sequencing, scientists have tracked the evolution of the antibiotic-resistant bacterium Klebsiella pneumoniae sequence type 258 (ST258), an important agent of hospital-acquired infections. While researchers had previously thought that ST258 K. pneumoniae strains spread from a single ancestor, the team showed that the strains arose from at least two different lineages. Continue reading

Alcohol mixed with diet drinks may increase intoxication more than alcohol and regular drinks

Alcohol mixed with diet drinks may increase intoxication more than alcohol and regular drinks

Feb. 5, 2013 — An individual’s breath alcohol concentration (BrAC) following alcohol intake is influenced by several factors, including food. While it is known that food delays the stomach emptying, thus reducing BrAC, only recently has the role of nonalcoholic drink mixers used with alcohol been explored as a factor influencing BrAC. Continue reading

One in three children with MS has cognitive impairment

One in three children with MS has cognitive impairment

Feb. 5, 2013 — Data from the largest multicenter study accessing cognitive functioning in children with multiple sclerosis (MS) reveals that one-third of these patients have cognitive impairment, according to a research paper published in the Journal of Child Neurology. Led by Lauren B Continue reading

Green tea and red wine extracts interrupt Alzheimer’s disease pathway in cells

Green tea and red wine extracts interrupt Alzheimer’s disease pathway in cells

Feb. 5, 2013 — Natural chemicals found in green tea and red wine may disrupt a key step of the Alzheimer’s disease pathway, according to new research from the University of Leeds Continue reading

Air pollution primes children for asthma-related cockroach allergy

Air pollution primes children for asthma-related cockroach allergy

Feb. 6, 2013 — An allergic reaction to cockroaches is a major contributor to asthma in urban children, but new research suggests that the insects are just one part of a more complex story. Very early exposure to certain components of air pollution can increase the risk of developing a cockroach allergy by age 7 and children with a common mutation in a gene called GSTM may be especially vulnerable Continue reading

Automated breast density test identifies women at high cancer risk

Automated breast density test identifies women at high cancer risk

Feb. 1, 2013 — Researchers at Moffitt Cancer Center and colleagues at the Mayo Clinic in Rochester, Minn., have developed a novel computer algorithm to easily quantify a major risk factor for breast cancer based on analysis of a screening mammogram Continue reading