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Thursday, January 3, 2013

ScienceDaily: Top Health News

ScienceDaily: Top Health News


Can diet beat depression?

Posted: 02 Jan 2013 05:55 PM PST

Research into diet and depression should follow the model of studies into diet and cardiovascular risk. So argue experts in a recent opinion piece.

Risk genes for Alzheimer's and mental illness linked to brain changes at birth

Posted: 02 Jan 2013 05:54 PM PST

Some brain changes that are found in adults with common gene variants linked to disorders such as Alzheimer's disease, schizophrenia, and autism can also be seen in the brain scans of newborns, a new study finds.

For those short on time, aerobic, not resistance, exercise is best bet for weight- and fat loss

Posted: 02 Jan 2013 02:29 PM PST

A new study finds that when balancing time commitments against health benefits, aerobics training is optimal for reducing fat- and body mass.

New research helps explain why girls do better in school

Posted: 02 Jan 2013 01:18 PM PST

Why do girls get better grades in elementary school than boys -- even when they perform worse on standardized tests? New research suggests that it's because of their classroom behavior, which may lead teachers to assign girls higher grades than their male counterparts.

Lower thresholds for blood transfusion found to have no adverse effects on patients' health

Posted: 02 Jan 2013 01:11 PM PST

A systematic review of 19 clinical trials comparing higher versus lower hemoglobin thresholds in red blood cell transfusion concludes that there is no significant difference in patient outcomes with red blood cell transfusions using lower threshold levels.

Sleep apnea may offer unusual protection for heart attack patients

Posted: 02 Jan 2013 01:11 PM PST

Researchers at the Technion have found that heart attack patients with breathing disorders such as sleep apnea may benefit from mild-moderate sleep-disordered breathing. The findings could suggest ways to rebuild damaged heart tissue.

Promising compound restores memory loss and reverses symptoms of Alzheimer's in mice

Posted: 02 Jan 2013 11:05 AM PST

A new ray of hope has broken through the clouded outcomes associated with Alzheimer's disease. When a molecule called TFP5 is injected into mice with disease that is the equivalent of human Alzheimer's, symptoms are reversed and memory is restored -- without obvious toxic side effects.

Communication is key to medication adherence

Posted: 02 Jan 2013 11:05 AM PST

Even the best medicines in the world can be rendered ineffective if they are not taken as prescribed. The problem known as medication "non-adherence" is a major health issue in the United States, contributing to worse outcomes for people who have diabetes and other chronic diseases.

Previous studies on toxic effects of BPA couldn't be reproduced

Posted: 02 Jan 2013 11:05 AM PST

Following a three-year study using more than 2,800 mice, a researcher was not able to replicate a series of previous studies by another research group investigating the controversial chemical BPA.

New method for uncovering side effects before a drug hits the market

Posted: 02 Jan 2013 11:05 AM PST

Side effects are a major reason that drugs are taken off the market and a major reason why patients stop taking their medications, but scientists are now reporting the development of a new way to predict those adverse reactions ahead of time.

Nature-inspired advance for treating sensitive teeth

Posted: 02 Jan 2013 11:04 AM PST

Taking inspiration from Mother Nature, scientists are reporting an advance toward preventing the tooth sensitivity that affects millions of people around the world. The substance is similar to the adhesive that mussels use to attach to rocks and other surfaces in water.

Treating sleep-disordered breathing in pregnancy may improve fetal health

Posted: 02 Jan 2013 11:04 AM PST

A new study suggests that treatment of mild sleep-disordered breathing with continuous positive airway pressure therapy in pregnant women with preeclampsia improves fetal activity levels, a marker of fetal well-being.

Molecule that polices TB lung infection discovered: Could lead to vaccine

Posted: 02 Jan 2013 11:03 AM PST

The presence of a certain molecule allows the immune system to effectively police tuberculosis of the lungs and prevent it from turning into an active and deadly infection, according to a new study.

Accepted model of memory formation refuted

Posted: 02 Jan 2013 11:01 AM PST

A widely accepted model of long-term memory formation — that it hinges on a single enzyme in the brain — is flawed, according to new research. The new study found that mice lacking the enzyme that purportedly builds memory were in fact still able to form long-term memories as well as normal mice could.

If baby's crawling, you'll probably be up more at night, study reveals

Posted: 02 Jan 2013 07:45 AM PST

Infants who have started crawling wake up more often at night compared to the period before the crawling, reveals a new study.

Electric stimulation of brain releases powerful, opiate-like painkiller

Posted: 02 Jan 2013 07:45 AM PST

Researchers used electricity on certain regions in the brain of a patient with chronic, severe facial pain to release an opiate-like substance that's considered one of the body's most powerful painkillers.

Itchiness explained: Specific set of nerve cells signal itch but not pain, researchers find

Posted: 02 Jan 2013 07:45 AM PST

Researchers have uncovered strong evidence that mice have a specific set of nerve cells that signal itch but not pain, a finding that may settle a decades-long debate about these sensations, and, if confirmed in humans, help in developing treatments for chronic itch, including itch caused by life-saving medications.

Language learning begins in utero, study finds; Newborn memories of oohs and ahs heard in the womb

Posted: 02 Jan 2013 05:36 AM PST

Babies only hours old are able to differentiate between sounds from their native language and a foreign language, scientists have discovered. The study indicates that babies begin absorbing language while still in the womb, earlier than previously thought.

Early predictor for glaucoma identified

Posted: 02 Jan 2013 05:36 AM PST

A new study finds that certain changes in retinal blood vessels provide an early warning of increased glaucoma risk. Using Blue Mountains Eye Study data, the researchers showed that patients who had abnormally narrow retinal arteries at baseline were also most likely to have glaucoma at 10-year follow up. If confirmed by future research, this finding could give ophthalmologists a new way to identify and treat those who are most vulnerable to glaucoma.

Smoking affects heart surgery outcome even a year after quitting

Posted: 02 Jan 2013 05:34 AM PST

Smoking cessation even a year prior to coronary artery bypass grafting (CABG) surgery does not fully normalize the changes smoking has made to the saphenous (leg) veins used for the surgery and may lead to later graft failure, according to a new study.

'Protecting' psychiatric medical records puts patients at risk of hospitalization

Posted: 02 Jan 2013 05:34 AM PST

Medical centers that elect to keep psychiatric files private and separate from the rest of a person's medical record may be doing their patients a disservice, a new study concludes.

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