Body

Breast density change linked to cancer development in WHI hormone replacement study

Washington, DC --An increase in breast density appears to be the culprit behind an increase of breast cancer found in women participating in the estrogen and progestin therapy study, a part of the Women's Health Initiative (WHI). That is the finding of a new WHI analysis led by Celia Byrne, PhD, assistant professor at Georgetown Lombardi Comprehensive Cancer Center, and presented during the AACR 101st Annual Meeting 2010 in Washington, DC.

Standardized testing method for cranberry products will reveal effectiveness of UTI treatments

Natural compounds in cranberries are linked to the prevention of urinary tract infections (UTIs) but inconsistencies in methods currently used commercially to measure levels can result in the over- or under-estimation of potency levels, leaving product manufacturers and consumers without good data. A study published today in the Journal of the Science of Food and Agriculture outlines a new, commercially viable method of measuring these compounds.

Computer model better than clinical judgment for diagnosing fever in young children

A computerised diagnostic model outperforms clinical judgement for the diagnosis of fever in young children, and may improve early treatment, finds a study published on bmj.com today.

Fever (or febrile illness) is a common symptom in children, especially in those under five years of age, but it can be difficult to diagnose the correct cause. Yet physicians need to be able to distinguish minor viral illnesses from serious bacterial infections such as pneumonia, urinary tract infection and meningitis.

2,363 new DNA sequences discovered in human genome

Researchers have discovered 2,363 new DNA sequences corresponding to 730 regions on the human genome by using new approaches. These sequences represent segments of the genome that were not charted in the reference map of the human genome.

Alternative strategies to reduce maternal mortality in India

A study by Sue J. Goldie and colleagues from the Harvard School of Public Health published this week in PLoS Medicine finds that better family planning, provision of safe abortion, and improved intrapartum and emergency obstetrical care could reduce maternal mortality in India by 75% in less than a decade.

Higher consumption of dietary added sugars associated with unfavorable lipid levels

This release is available in http://chinese..org/zh/emb_releases/2010-04/jaaj-hco041610.php">Chinese.

Consuming a higher amount of added sugars in processed or prepared foods is associated with lower levels of high-density lipoprotein cholesterol (HDL-C, the "good cholesterol") and higher levels of triglycerides, which are important risk factors for cardiovascular disease, according to a study in the April 21 issue of JAMA.

Children with short mothers die earlier, study finds

Among 54 low- to middle-income countries, a mother's shorter height is associated with a higher rate of death for her children and a greater likelihood of these children being underweight and having a reduced rate of growth, according to a study in the April 21 issue of JAMA.

Study examines outcomes of early vs. late tracheotomy for mechanically ventilated ICU patients

Adult ICU patients who received tracheotomy 6 to 8 days vs. 13 to 15 days after mechanical ventilation did not have a significant reduction in the risk of ventilator-associated pneumonia, according to a study in the April 21 issue of JAMA.

Association of fiber and colorectal cancer risk differs depending on dietary assessment method

High dietary fiber intake was associated with a lower risk of colorectal cancer when researchers used data from food diaries but not when they used data obtained from food frequency questionnaires, according to a study published online April 20 in the Journal of the National Cancer Institute.

Previous studies have examined the issue of dietary fiber and risk of colorectal cancer, but the results have been inconsistent, particularly in studies that used food-frequency questionnaires (FFQs).

Shorter maternal height associated with more deaths among children in developing countries

Boston, MA—Mothers shorter than 4 feet, 9 inches in low- to middle-income countries had about a 40 percent higher risk of their children dying within the first five years of life than mothers who were 5 feet, 3 inches or taller according to a new study from the Harvard School of Public Health (HSPH). The risk was higher—almost 60 percent—in the first 30 days after birth. It is the most comprehensive study to date to show that a mother's short stature is associated with poor health in her offspring.

Higher amounts of added sugars increase heart disease risk factors

ATLANTA – Added sugars in processed foods and beverages may increase cardiovascular disease risk factors, according to a study by Emory University researchers.

The study, published in the April 20, 2010, issue of the Journal of the American Medical Association (JAMA), analyzed U.S. government nutritional data and blood lipid levels in more than 6,000 adult men and women between 1999 and 2006. The study subjects were divided into five groups according to the amount of added sugar and caloric sweeteners they consumed daily.

Change in breast density over time provides clues about breast cancer risk

WASHINGTON — A decrease in breast density, or the proportion of fibroglandular tissue depicted on the mammogram image, over a number of years is associated with decreased risk of breast cancer, researchers from the Mayo Clinic campus in Minnesota report at the American Association for Cancer Research (AACR) 101st Annual Meeting 2010.

Scientists create artificial human skin

Scientists from the University of Granada in Spain have generated artificial human skin by tissular engineering basing on agarose-fibrin biomaterial. The artificial skin was grafted onto mice, and optimal development, maturation and functionality results were obtained. This pioneering finding will allow the clinical use of human skin and its use in many laboratory tests on biological tissues –which, additionally, would avoid the use of laboratory animals. Further, this finding could be useful in developing new treatment approaches for dermatological pathologies.

Even modest weight loss boosts immune system of obese people (more for diabetics)

Australian scientists have shown for the first time that even modest weight loss reverses many of the damaging changes often seen in the immune cells of obese people, particularly those with Type 2 diabetes.

The immune system is made up of many different kinds of cells that protect the body from germs, viruses and other invaders. These cells need to co-exist in a certain balance for good health to be maintained. Many factors, including diet and excess body fat, can tip this balance, creating cells that can attack, rather than protect, our bodies.

Increased EGFR levels may be an early marker of breast cancer

WASHINGTON, D.C. — Levels of epidermal growth factor receptor (EGFR) may be elevated in the blood of women within 17 months prior to their breast cancer diagnosis, according to findings presented at the American Association for Cancer Research 101st Annual Meeting 2010, held here April 17-21.

The goal of the study led by Christopher Li, M.D., Ph.D., an associate member of the Epidemiology Program at the Fred Hutchinson Cancer Research Center, Seattle, was to discover and validate blood markers that could potentially be used for the early detection of breast cancer.