Body

Antibiotic resistance is a gut reaction

Scientists from the Institute of Food Research and the University of East Anglia have discovered how certain gut bacteria can protect themselves and others in the gut from antibiotics.

The bacteria produce compounds, called cephalosporinases, which inactivate and destroy certain antibiotics such as penicillin derivatives and cephalosporins, protecting themselves and other beneficial bacteria that live in close proximity. However, they may also give protection from these antibiotics to harmful bacteria, such as Salmonella.

UTMB study finds that Hispanic women less likely to survive endometrial uterine cancer

GALVESTON, Texas -- In the largest study to date evaluating outcomes of Hispanic women with endometrial uterine cancer, researchers at the University of Texas Medical Branch at Galveston have found that Hispanic women in the United States were significantly less likely to survive the cancer than non-Hispanic white women.

Extra vitamin E protected older mice from getting common type of pneumonia

BOSTON (Dec. 16, 2014) -- Extra vitamin E protected older mice from a bacterial infection that commonly causes pneumonia. Microbiologists and nutrition researchers from Tufts University report that the extra vitamin E helped regulate the mice's immune system. The findings, published online in advance of print in the The Journal of Immunology, show promise for studies investigating the effects of vitamin E and infection in humans.

UBC scientist finds genetic wrinkle to block sun-induced skin aging

A scientific team at UBC and Providence Health Care have genetically engineered mice with less wrinkled skin, despite repeated exposure to wrinkle-inducing ultraviolet (UV) light.

Social connections keep workers on board

Contrary to popular belief, new research suggests that some employees adapt well to pressures caused by changes in the workplace.

Pay cuts, reduced working hours, fewer training and promotion opportunities are just a few of the measures organisations employ to combat economic downturn and industry competition. Where previous research has suggested cut backs result in a demotivated and unhappy workforce, experts from Monash University and The University of Iowa say this might not necessarily be the case.

Composite plane life cycle assessment shows lighter planes are the future

A global fleet of composite planes could reduce carbon emissions by up to 15 percent, but the lighter planes alone will not enable the aviation industry to meet its emissions targets, according to new research.

The study, by the Universities of Sheffield, Cambridge and UCL (University College London), is the first to carry out a comprehensive life cycle assessment (LCA) of a composite plane, such as the Boeing Dreamliner 787 or Airbus 350, and extrapolate the results to the global fleet.

E-cigarettes may recruit lower risk teens to nicotine use

Researchers at the Norris Cotton Cancer Center and University of Hawaii Cancer Center find that one-third of Hawaiian adolescents have tried e-cigarettes, half of whom have never used another tobacco product.

Urban stream contamination increasing rapidly due to road salt

Average chloride concentrations often exceed toxic levels in many northern United States streams due to the use of salt to deice winter pavement, and the frequency of these occurrences nearly doubled in two decades.

Men in recovery from Ebola should wear condoms for at least 3 months

Los Angeles, CA (November 16, 2014) A new article reports that despite a clear lack of research on male survivors of Ebola, the current recommended practice of waiting at least three months after recovery to have unprotected sex should be upheld. This study was published today in Reproductive Sciences, a SAGE journal.

A novel tool to study life-threatening arrhythmias: A genetically engineered pig

Researchers at NYU Langone Medical Center have developed the first large animal model of an inherited arrhythmic syndrome - an advance that will lead to a better understanding of the biologic mechanisms important in normal heart conduction and rhythm. The novel pig model points the way toward development of better treatments for inherited forms of life-threatening arrhythmias, which are a significant cause of sudden cardiac death.

Receptor may be key to treating nonalcoholic fatty liver disease

Inhibiting a nuclear receptor in the gut could lead to a treatment for a liver disorder that affects almost 30 percent of the Western world's adult population, according to an international team of researchers.

The researchers found that tempol, an antioxidant drug, and antibiotics can treat and prevent nonalcoholic fatty liver disease in mice that were fed a high-fat diet. Nonalcoholic fatty liver disease -- NAFLD -- is a build up of fat in liver cells that disrupts liver function and, if left untreated, can lead to liver failure.

Microbial-induced pathway promotes nonalcoholic fatty liver disease

Nonalcoholic fatty liver disease (NAFLD) is the most common liver disorder and affects approximately 1 billion people worldwide. It is not clear how this disease develops, but recent studies suggest that the bacterial population in the gut influences NAFLD. A new study in the Journal of Clinical Investigation provides a link between molecular signaling pathways in the gut, the intestinal microbiome, and development of NAFLD.

Non-Gluten proteins identified as targets of immune response to wheat in celiac disease

NEW YORK, NY (December 15, 2014)--Researchers at Columbia University Medical Center have found that, in addition to gluten, the immune systems of patients with celiac disease react to specific types of non-gluten protein in wheat. The results were reported online in the Journal of Proteome Research.

Dartmouth researchers create 'green' process to reduce molecular switching waste

HANOVER, N.H. - Dartmouth researchers have found a solution using visible light to reduce waste produced in chemically activated molecular switches, opening the way for industrial applications of nanotechnology ranging from anti-cancer drug delivery to LCD displays and molecular motors.

The study appears in the Journal of the American Chemical Society. A PDF is available on request.

Women's age at first menstrual cycle linked to heart disease risk

Women who had their first menstrual cycle at age 10 or younger, or age 17 or older, may be at higher risk of developing heart disease, stroke, and complications of high blood pressure, according to new research in the American Heart Association's journal Circulation.

Researchers analyzed data collected from 1.3 million women aged 50 to 64 years old, who were mostly white. After over a decade of observation, those women who had their first menstrual cycle at the age of 13 had the least risk of developing heart disease, stroke, and high blood pressure.