Body

Higher blood levels of cadmium in females, and higher blood levels of lead in males, delayed pregnancy in couples trying to become pregnant, according to a study by researchers at the National Institutes of Health and other academic research institutions.

Immunological diseases, such as eczema and asthma, are on the increase in westernised society and represent a major challenge for 21st century medicine. A new study has shown, for the first time, that growing up on a farm directly affects the regulation of the immune system and causes a reduction in the immunological responses to food proteins.

Obstacles in an organism's path can help it to move faster, not slower, researchers from New York University's Applied Math Lab at the Courant Institute of Mathematical Sciences have found through a series of experiments and computer simulations. Their findings, which appear in the Journal of the Royal Society Interface, have implications for a better understanding of basic locomotion strategies found in biology, and the survival and propagation of the parasite that causes malaria.

DURHAM, N.C. – In a large analysis of men participating in a prostate drug trial, researchers at the Duke Cancer Institute found a significant correlation between coronary artery disease and prostate cancer, suggesting the two conditions may have shared causes.

If confirmed that heart disease is a risk factor for prostate cancer, the malignancy might be combated in part by lifestyle changes such as weight loss, exercise and a healthy diet, which are known to prevent heart disease.

For coffee lovers, the first cup of the morning is one of life's best aromas. But did you know that the leftover grounds could eliminate one of the worst smells around – sewer gas?

In research to develop a novel, eco-friendly filter to remove toxic gases from the air, scientists at The City College of New York (CCNY) found that a material made from used coffee grounds can sop up hydrogen sulfide gas, the chemical that makes raw sewage stinky.

Gay, lesbian, bisexual and transgendered adults who smoke are not thinking about quitting or getting ready to quit, and a quarter are uncomfortable approaching their doctors for help, report University of Colorado Cancer Center researchers in a recent article published in Nicotine & Tobacco Research.

These and other findings from the study may help identify new approaches to encourage GLBT smokers to quit.

AURORA, Colo. (Feb. 8, 2012) – Children of diabetic pregnancies have a greater risk of childhood obesity, but new research from the Colorado School of Public Health shows breastfeeding can reduce this threat.

Epidemiologist Tessa Crume, Ph.D., MSPH, and fellow researchers tracked 94 children of diabetic pregnancies and 399 of non-diabetic pregnancies from birth to age 13. They evaluated the influence of breastfeeding on the growth of body mass index (BMI), an indicator of childhood obesity.

PHILADELPHIA -- In their search for new, better ways to diagnose periprosthetic joint infection, Rothman Institute at Jefferson researchers have discovered that measurement of C-reactive protein in the synovial fluid is extremely accurate, while measuring a patients’ serum white blood cell count (WBC) and the percentage of neutrophils (PMN%), the conventional method for diagnosis, has a minimal role in the determination of PJI.

The synovial fluid is the viscous liquid that lubricates the joints and feeds the cartilage.

A large-scale study analyzing metabolic compounds in rice grains conducted by researchers at the RIKEN Plant Science Center (PSC) and their collaborators has identified 131 rice metabolites and clarified the genetic and environmental factors that influence their production. The findings provide a natural way to bioengineer improved rice grain varieties by selectively increasing production of useful metabolites, boosting the nutritional value of crops.

Stripping some mouth bacteria of their access key to gangs of other pathogenic oral bacteria could help prevent gum disease and tooth loss. The study, published in the journal Microbiology suggests that this bacterial access key could be a drug target for people who are at high risk of developing gum disease.

Respiratory tract infections, including pneumonia, are the most common cause of death in children under the age of five. In a study looking at children given standard antibiotic therapy, new research published in BioMed Central's open access journal BMC Medicine shows how zinc supplements drastically improved children's chances of surviving the infection. The increase in survival due to zinc (on top of antibiotics) was even greater for HIV infected children.

COLUMBUS, Ohio -- When mature male white-crowned sparrows duel to win a mate or a nesting territory, a young bird just doesn't get much respect.

Researchers found that older male white-crowned sparrows don't put much of a fight when they hear a young male singing in their territory – probably because the older bird doesn't consider the young rival much of a threat.

But a male sparrow will act much more aggressively if it hears a bird of the same age singing in a territory it claims as its own.

Cleansing a newborn's umbilical cord with chlorhexidine can reduce an infant's risk of infection and death during the first weeks of life by as much as 20 percent, according to a study led by researchers at the Johns Hopkins Bloomberg School of Public Health.

Mapping the ancestry of sheep over the past 11,000 years has revealed that our woolly friends are stars among domestic animals, boasting vast genetic diversity and substantial prospects for continued breeding to further boost wool and food production for a rising world population.

Contrary to current convention by which infection with the organism Clostridium difficile is regarded as an infection that is acquired by contact with symptomatic patients known to be infected with C. difficile, these may account for only a minority of new cases of the infection. These findings are important as they indicate that C. difficile infection, which can be fatal especially in older people, may not be effectively controlled by current hospital infection strategies.