Body

Mast cells give clues in diagnosis, treatment of dengue

DURHAM, N.C. -- A protein produced by mast cells in the immune system may predict which people infected with dengue virus will develop life-threatening complications, according to researchers at Duke Medicine and Duke-National University of Singapore (Duke-NUS).

Their study also found that in experiments in mice, a class of drugs commonly used to treat asthma by targeting the mast cells could help treat vascular symptoms associated with dengue infections. The findings were published in the online journal eLife on April 30, 2013.

Low HDL-cholesterol -- not quantity, but quality

Many of the genes regulating the inflammation and immune response of the body are also associated with low HDL-cholesterol levels in the circulation, tells the recent study conducted at the University of Helsinki, Finland. The research also discovered that the quality of HDL particle can vary considerably.

Cholesterol is a major risk factor for heart disease. Elevated LDL-cholesterol, commonly known as the 'bad cholesterol,' is associated with increased risk of heart disease while HDL-cholesterol, the 'good cholesterol', is associated with decreased risk.

Electron-beam pasteurization of raw oysters may reduce viral food poisoning

COLLEGE STATION – According to the Centers for Disease Control, about one in six Americans gets food poisoning each year. Additionally, virus infection risks from consumption of raw oysters in the U.S. are estimated to cost around $200 million a year.

A text message a day keeps the asthma attack away

Simply sending children with asthma a text message each day asking about their symptoms and providing knowledge about their condition can lead to improved health outcomes.

In a study by the Georgia Institute of Technology, pediatric patients who were asked questions about their symptoms and provided information about asthma via SMS text messages showed improved pulmonary function and a better understanding of their condition within four months, compared to other groups.

Good days, bad days: When should you make sacrifices in a relationship?

A pile of dirty dishes looms in the kitchen. It's your spouse's night to wash, but you know he or she has had a long day so you grab a sponge and step up to the plate. It's just one of the minor daily sacrifices you make in the name of love. But what if you had a long, stressful day, too?

Encountering connections may make life feel more meaningful

Experiencing connections, regularities, and coherence in their environment may lead people to feel a greater sense of meaning in life, according to a new study published in Psychological Science, a journal of the Association for Psychological Science.

Estrogen fuels autoimmune liver damage

A life-threatening condition that often requires transplantation and accounts for half of all acute liver failures, autoimmune hepatitis is often precipitated by certain anesthetics and antibiotics. Researchers say these drugs contain tiny molecules called haptens that ever so slightly change normal liver proteins, causing the body to mistake its own liver cells for foreign invaders and to attack them. The phenomenon disproportionately occurs in women, even when they take the same drugs at the same doses as men.

How some cancers 'poison the soil' to block metastasis

NEW YORK (April 30, 2013) -- Cancer spread or metastasis can strike unprecedented fear in the minds of cancer patients. The "seed and the soil" hypothesis proposed by Stephen Paget in 1889 is now widely accepted to explain how cancer cells (seeds) are able to generate fertile soil (the microenvironment) in distant organs that promotes cancer's spread. However, this concept does not explain why some tumors do not spread or metastasize.

Low vitamin D levels a risk factor for pneumonia

A University of Eastern Finland study showed that low serum vitamin D levels are a risk factor for pneumonia. The risk of contracting pneumonia was more than 2.5 times greater in subjects with the lowest vitamin D levels than in subjects with high vitamin D levels. The results were published in Journal of Epidemiology and Community Health.

Women smokers may have greater risk for colon cancer than men

PHILADELPHIA — Smoking increased the risk for developing colon cancer, and female smokers may have a greater risk than male smokers, according to data published in Cancer Epidemiology, Biomarkers & Prevention, a journal of the American Association for Cancer Research.

Gastric bypass surgery alters hormones to relieve diabetes symptoms

Chevy Chase, MD––Gastric bypass surgery alters the hormones and amino acids produced during digestion, hinting at the mechanisms through which the surgery eliminates symptoms of type 2 diabetes, according to a recent study accepted for publication in The Endocrine Society's Journal of Clinical Endocrinology & Metabolism (JCEM).

Secondhand smoke presents greater threat to teen girls than boys

Chevy Chase, MD––When teenage girls are exposed to secondhand smoke at home, they tend to have lower levels of the "good" form of cholesterol that reduces heart disease risk, according to a recent study accepted for publication in The Endocrine Society's Journal of Clinical Endocrinology & Metabolism (JCEM).

Mayo Clinic finds experimental drug inhibits growth in all stages of common kidney cancer

JACKSONVILLE, Fla. — Researchers at Mayo Clinic's campus in Florida have discovered a protein that is overly active in every human sample of kidney cancer they examined. They also found that an experimental drug designed to block the protein's activity significantly reduced tumor growth in animals when used alone. Combining it with another drug already used to treat the cancer improved the effectiveness of both.

Researchers pinpoint upper safe limit of vitamin D blood levels

Chevy Chase, MD––Researchers claim to have calculated for the first time, the upper safe limit of vitamin D levels, above which the associated risk for cardiovascular events or death raises significantly, according to a recent study accepted for publication in The Endocrine Society's Journal of Clinical Endocrinology & Metabolism (JCEM).

Cell response to new coronavirus unveils possible paths to treatments

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