Body

The physical health impact of job loss

In the face of rising unemployment and businesses declaring bankruptcy, a new study has found that losing your job can make you sick. Even when people find a new job quickly, there is an increased risk of developing a new health problem, such as hypertension, heart disease, heart attack, stroke or diabetes as a result of the job loss. The study will be published in the May 8 issue of Demography.

Long-lived yeast provides anti-aging secret: glucose to glycerol conversion

Cell biologists have found a more filling substitute for caloric restriction in extending the life span of simple organisms. In a study published May 8 in the open-access journal PLoS Genetics, researchers from the University of Southern California Andrus Gerontology Center show that yeast cells maintained on a glycerol diet live twice as long as normal -- as long as yeast cells on a severe caloric-restriction diet. They are also more resistant to cell damage.

Constant sunlight linked to summer suicide spike

Suicide rates in Greenland increase during the summer, peaking in June. Researchers writing in the open access journal BMC Psychiatry speculate that insomnia caused by incessant daylight may be to blame.

Kidney disease patients reap rewards of prevention

Making sure you see your doctor and have tests run on a regular basis can prevent serious complications of chronic kidney disease (CKD), according to a study appearing in an upcoming issue of the Journal of the American Society Nephrology (JASN). The results suggest that patients who follow preventive measures are more likely to stay healthy.

Low blood sugar: A killer for kidney disease patients?

Low blood sugar, or hypoglycemia, poses a serious health threat for patients with chronic kidney disease (CKD), according to a study appearing in an upcoming issue of the Clinical Journal of the American Society Nephrology (CJASN). The findings indicate that hypoglycemia may account for some portion of the excess heart-related deaths seen in CKD patients.

Massage after exercise a benefit? No, a myth, says study

Massage actually impairs blood flow to the muscle after exercise

A Queen's University research team has blown open the myth that massage after exercise improves circulation to the muscle and assists in the removal of lactic acid and other waste products.

Expression of infrared fluorescence engineered in mammals

Researchers at the University of California, San Diego – led by 2008 Nobel-Prize winner Roger Tsien, PhD – have shown that bacterial proteins called phytochromes can be engineered into infrared-fluorescent proteins (IFPs). Because the wavelength of IFPs is able to penetrate tissue, these proteins are suitable for whole-body imaging in small animals. Their findings will be published in the May 8 edition of the journal Science.

Honeybees are on the rise but demand grows faster

The notion that a decline in pollinators may threaten the human food supply – producing a situation that has been referred to as a "pollination crisis" – can be considered a myth, at least where honey bees are concerned, say researchers reporting online on May 7th in Current Biology, a Cell Press publication. First of all, most agricultural crop production does not depend on pollinators. On top of that, while honey bees may be dwindling in some parts of the world, the number of domesticated bees world-wide is actually on the rise, their new report shows.

Disappearing act of world's second largest fish explained

Researchers have discovered where basking sharks – the world's second largest fish – hide out for half of every year, according to a report published online on May 7th in Current Biology, a Cell Press publication. The discovery revises scientists' understanding of the iconic species and highlights just how little we still know about even the largest of marine animals, the researchers said.

Study reveals current multi-component vaccines may need reworking

Current strategies for designing vaccines against HIV and cancers, for instance, may enable some components in multi-component vaccines to cancel the effect of others on the immune system, eliminating their ability to provide protection, according to an article to be published shortly in the Proceedings of the National Academy of Sciences (PNAS). The authors also suggest, and successfully test, techniques that offer a solution to newly revealed mechanisms that enable some vaccine components to outcompete others.

Visualizing virus replication in three dimensions

Dengue fever is the most common infectious disease transmitted by mosquitoes – some 100 million people around the world are infected. Researchers at the Hygiene Institute at Heidelberg University Hospital were the first to present a three-dimensional model of the location in the human cell where the virus is reproduced. Their research provides an insight into the exact process of viral replication and serves as a model for other viruses whose replication is still unclear, such as the hepatitis C virus.

Dengue fever costs billions in health care, lost productivity and absenteeism

Waltham, MA—Researchers at Brandeis, in collaboration with several other institutions worldwide, have pinpointed for the first time the multi-country economic costs of dengue fever, the endemic and epidemic mosquito-borne illness that is a rapidly growing public health problem in tropical and sub-tropical countries.

Undiagnosed diabetes takes economic toll

New Rochelle, NY, May 7, 2009—Approximately 6.3 million adults—or one fourth of the people in the U.S. with diabetes mellitus—are unaware they have the disease, and this undiagnosed population accounts for an estimated $18 billion in health care costs each year, according to a study in a recent issue of Population Health Management, a peer-reviewed journal published by Mary Ann Liebert, Inc. (www.liebertpub.com).

Is dephytinization from infant cereals beneficial to the nutrition absorption?

Cereals are considered a rich plant source of carbohydrate, proteins, vitamins, and minerals, and are therefore are usually introduced to an infant's diet between the ages of four and six months. However, cereals are also rich in antinutrients, which can decrease the absorption of critical nutrients such as iron, calcium, and zinc because of their high ability to chelate and precipitate minerals. Given the importance of an adequate intake of minerals during infancy, Dr.

Computer simulation at the duodenal stump after gastric resection

There are various types of reconstruction of gastrointestinal continuity after gastric resection. It seems that insufficient attention has been paid to how the geometry and flow conditions affect the gastroduodenal system after distal gastric resection. Also, intraluminal pressure can be the dominant cause of duodenal suture dehiscence, but still many pathological mechanisms involved in this surgical problem remain unclear.