الخميس، 22 ديسمبر 2011

ScienceDaily: Health & Medicine News

ScienceDaily: Health & Medicine News


Self-affirmation may break down resistance to medical screening

Posted: 21 Dec 2011 06:13 PM PST

People resist medical screening, or don't call back for the results, because they don't want to know they're sick or at risk for a disease. But many illnesses, such as HIV/AIDS and cancer, have a far a better prognosis if they're caught early. How can health care providers break down that resistance?

Do you hear what I hear? Noise exposure surrounds us

Posted: 21 Dec 2011 06:12 PM PST

Nine out of 10 city dwellers may have enough harmful noise exposure to risk hearing loss, and most of that exposure comes from leisure activities.

Breakthrough in treatment to prevent blindness

Posted: 21 Dec 2011 11:07 AM PST

A new study shows a popular treatment for a potentially blinding eye infection is just as effective if given every six months versus annually. This randomized study on trachoma, the leading cause of infection-caused blindness in the world, could potentially treat twice the number of patients using the same amount of medication.

Crucial advances in 'brain reading' demonstrated

Posted: 21 Dec 2011 11:07 AM PST

A new study demonstrates several crucial advances in "brain reading" or "brain decoding" using computerized machine learning methods. Researchers classified data taken from people being scanned while watching videos meant to induce nicotine cravings and detected whether people were watching and resisting cravings, indulging in them, or watching videos that were unrelated to smoking or cravings.

How normal cells fuel tumor growth

Posted: 21 Dec 2011 07:58 AM PST

A new study has discovered how normal cells in tumors can fuel cancer progression. The study examines what happens when normal cells called fibroblasts in tumors lose an important tumor-suppressor gene. The findings suggest new strategies for controlling tumor growth, they provide insight into the mechanisms that control the co-evolution of cancer cells and their surrounding normal cells in tumors, and they demonstrate how this gene normally suppresses cancer development.

Do our medicines boost pathogens?

Posted: 21 Dec 2011 06:17 AM PST

Scientists have discovered a parasite that not only had developed resistance against a common medicine, but at the same time had become better in withstanding the human immune system. With some exaggeration: Medical practice helped in developing a superbug. For it appears the battle against the drug also armed the bug better against its host.

The biology behind severe PMS

Posted: 21 Dec 2011 06:17 AM PST

Sensitivity to allopregnanolone, a hormone that occurs naturally in the body after ovulation and during pregnancy, changes during the course of the menstrual cycle and is different in women with severe PMS compared with women without PMS complaints.

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