الأحد، 7 يوليو 2013

ScienceDaily: Health & Medicine News

ScienceDaily: Health & Medicine News

'Organic' milk is poorer in iodine than conventional milk

Posted: 04 Jul 2013 06:46 AM PDT

Milk from organic farms has a lower concentration of elements like zinc, iodine and selenium than milk produced by conventional farming methods. The discrepancy is due to the absence of mineral substances in the diets of the cows reared. According to researchers, animals on organic farms should have their diets supplemented with natural sources of iodine such as seaweed, because it is a very important element for children and pregnant women.

Maintaining immune balance involves an unconventional mechanism of T cell regulation

Posted: 04 Jul 2013 06:46 AM PDT

A new study challenges prior understanding of the process regulating specialized T cells that are essential for a balanced immune system.

Does being a bookworm boost your brainpower in old age?

Posted: 04 Jul 2013 06:44 AM PDT

New research suggests that reading books, writing and participating in brain-stimulating activities at any age may preserve memory.

Cancer drug labels missing key information about patients' symptoms

Posted: 04 Jul 2013 06:43 AM PDT

For patients facing treatment for cancer, it is essential to understand how their symptoms will be affected. Symptoms like pain, fatigue, or nausea can result from the cancer, or from treatment side effects. The best way to collect this information is from patients themselves in research studies. But almost no drug labels in the U.S. include this information. As a result, incomplete information is available to patients and clinicians to help with treatment decisions.

Genetic signals reflect the evolutionary impact of cholera

Posted: 03 Jul 2013 01:06 PM PDT

Scientists have used a novel approach to identify genetic factors that appear to influence susceptibility to cholera. The indicate the importance of pathways involved in regulating water loss in intestinal cells and of the innate immune system in the body's response to the Vibrio cholerae bacteria.

Improved outlook for immune-based therapies: Assay identifies T cells most capable of fighting infections and cancers

Posted: 03 Jul 2013 01:06 PM PDT

The idea of fighting infections and even cancers by inducing protective immune responses may now be a step closer to clinical practice. Researchers have removed a major obstacle to widespread use of adoptive transfer therapy, in which a patient receives "killer" immune cells targeting a disease agent. Existing technologies can easily provide antigen-specific T cells, but it has been challenging to identify those individual cells most likely to fight disease effectively -- until now.

Cancer-linked FAM190A gene found to regulate cell division

Posted: 03 Jul 2013 01:03 PM PDT

Cancer scientists have discovered that a little-described gene known as FAM190A plays a subtle but critical role in regulating the normal cell division process known as mitosis, and the scientists' research suggests that mutations in the gene may contribute to commonly found chromosomal instability in cancer.

Novel research model for study of auto-immune diseases developed

Posted: 03 Jul 2013 11:05 AM PDT

Scientists have discovered a novel research model for the study of auto-immune diseases. They have found a way to separate two important mechanisms that improve the quality of antibodies.

GI doctors use endoscopy to place transpyloric stent

Posted: 03 Jul 2013 10:58 AM PDT

Physicians say they are encouraged by early results in three patients of their new treatment for gastroparesis, a condition marked by the failure of the stomach to properly empty its contents into the small intestine. They describe how the placement of a small metal stent in the stomach can improve life for people who suffer from severe bouts of nausea, abdominal pain and vomiting that accompany the condition.
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