Body

Drinking alcohol during pregnancy may damage semen quality in sons

Rome, Italy: Mothers who drink alcohol while they are pregnant may be damaging the fertility of their future sons, according to new research to be presented at the 26th annual meeting of the European Society of Human Reproduction and Embryology in Rome today (Tuesday 29 June).

Irish hares fall foul of modern farming trap

Research from Queen's University Belfast has revealed the 20th century decline in the Irish hare population is almost certainly associated with changes in farming practices.

The Stormont Assembly voted to ban hare coursing in Northern Ireland last Tuesday (22nd June), but a recent study, funded by the Northern Ireland Environment Agency (NIEA) and published in the international journal Biological Conservation, suggests hares may join the ranks of other farmland species, such as the Corncrake, unless more is done to protect its habitat.

Use of less invasive, imaging-guided biopsies on the rise

OAK BROOK, Ill. – Advanced imaging technologies have helped shift biopsy techniques away from more invasive approaches toward imaging-guided percutaneous—or through the skin—techniques, according to a new study appearing online and in the September print edition of the journal Radiology.

Biopsy—the removal of cells or tissue for microscopic examination—has a long history in medicine. The first percutaneous needle biopsy of the liver was reported in 1923, and the technique developed into an invaluable diagnostic tool in many organ systems.

Mitochondrial genome analysis revises view of the initial peopling of North America

June 29, 2010 – The initial peopling of North America from Asia occurred approximately 15,000-18,000 years ago, however estimations of the genetic diversity of the first settlers have remained inaccurate. In a report published online today in Genome Research (www.genome.org), researchers have found that the diversity of the first Americans has been significantly underestimated, underscoring the importance of comprehensive sampling for accurate analysis of human migrations.

Harvard's Wyss Institute develops technology to produce sugar from photosynthetic bacteria

Researchers from the Wyss Institute for Biologically Inspired Engineering at Harvard and Harvard Medical School have engineered photosynthetic bacteria to produce simple sugars and lactic acid. This innovation could lead to new, environmentally friendly methods for producing commodity chemicals in bulk. Their research findings appear in the June issue of Applied and Environmental Microbiology.

Some males react to competition like bonobos, others like chimpanzees

DURHAM, N.C. -- The average man experiences hormone changes similar to the passive bonobo prior to competition, but a "status-striving" man undergoes changes that mirror those found in a chimpanzee, say researchers from Duke and Harvard universities.

A new study published Monday (today) in Proceedings of the National Academy of Sciences reveals differing hormone levels in our two closest relatives, bonobos and chimpanzees, in anticipation of competition.

Weight and children with developmental coordination disorder

Children with developmental coordination disorder are at greater risk of being overweight or obese according to a study published in CMAJ (Canadian Medical Association Journal) (pre-embargo link only) http://www.cmaj.ca/embargo/cmaj091454.pdf.

Bicycling, brisk walking help women control weight

Boston, MA— Premenopausal women who make even small increases in the amount of time they spend bicycling or walking briskly every day decrease their risk of gaining weight, according to a new study by researchers from the Harvard School of Public Health (HSPH).

The study appears in the June 28, 2010 issue of the journal Archives of Internal Medicine.

Report examines whether statins prevent death in high-risk individuals without heart disease

A meta-analysis of previously published studies finds no evidence that statins are associated with a reduced risk of death among individuals at risk for but with no history of cardiovascular disease, according to a report in the June 28 issue of Archives of Internal Medicine, one of the JAMA/Archives journals.

Aggressive control of cardiac risk factors might not benefit all patients with diabetes

A mathematical model suggests that aggressively pursuing low blood pressure and cholesterol levels may not benefit, and could even harm, some patients with diabetes, according to a report in the June 28 issue of Archives of Internal Medicine, one of the JAMA/Archives journals.

Increased bicycle riding and brisk walking associated with less weight gain in women

Bicycling and brisk walking are associated with less weight gain among pre-menopausal women, especially those who are overweight and obese, according to a report in the June 28 issue of Archives of Internal Medicine, one of the JAMA/Archives journals. Additionally, the report finds that slower walking does not appear to offer the same benefits as brisk walking.

Nitrate in beetroot juice lowers blood pressure

The nitrate content of beetroot juice is the underlying cause of its blood pressure lowering benefits, research from Queen Mary University of London reveals today.

The study, published online in the American Heart Association journal Hypertension, found that blood pressure was lowered within 24hours in people who took nitrate tablets, and people who drank beetroot juice.

Fewer than half of breast cancer patients adhere to hormonal therapy regimen, study finds

A new study of nearly 8,800 women with early-stage breast cancer found that fewer than half – approximately 49 percent – completed their full regimen of hormone therapy according to the prescribed schedule. Investigators found that younger women were particularly likely to discontinue treatment. The findings underscore the need to both better understand the reasons behind such treatment non-compliance and also develop interventions to reduce it.

New formula gives first accurate peak heart rate for women

CHICAGO --- Women who measure their peak heart rates for exercise will need to do some new math as will physicians giving stress tests to patients.

A new formula based on a large study from Northwestern Medicine provides a more accurate estimate of the peak heart rate a healthy woman should attain during exercise. It also will more accurately predict the risk of heart-related death during a stress test.

Gene leads to longer shelf life for tomatoes, possibly other fruits

Gene leads to longer shelf life for tomatoes, possibly other fruits

WEST LAFAYETTE, Ind. - A Purdue University researcher has found a sort of fountain of youth for tomatoes that extends their shelf life by about a week.