الجمعة، 15 فبراير 2013

ScienceDaily: Health & Medicine News

ScienceDaily: Health & Medicine News

Common chemicals linked to osteoarthritis

Posted: 14 Feb 2013 10:40 AM PST

A new study has linked exposure to two common perfluorinated chemicals with osteoarthritis. The study is the first to look at the associations between perfluorooctanoic acid and perfluorooctanesulfonic acid, and osteoarthritis, in a study population representative of the United States.

Vision restored with total darkness in kittens with amblyopia

Posted: 14 Feb 2013 10:39 AM PST

Restoring vision might sometimes be as simple as turning out the lights. That's according to a study in which researchers examined kittens with a visual impairment known as amblyopia before and after they spent 10 days in complete darkness.

A little molecule's remarkable feat: Prolonging life

Posted: 14 Feb 2013 10:26 AM PST

Nitric oxide, the versatile gas that helps increase blood flow, transmit nerve signals, and regulate immune function, appears to perform one more biological feat -— prolonging the life of an organism and fortifying it against environmental stress, according to a new study.

Behavioral therapy for children with autism can impact brain function

Posted: 14 Feb 2013 09:06 AM PST

Using functional magnetic resonance imaging for before-and-after analysis, a team of researchers discovered positive changes in brain activity in children with autism who received a particular type of behavioral therapy.

Sewage lagoons remove most -- but not all -- pharmaceuticals

Posted: 14 Feb 2013 09:06 AM PST

Many rural communities in the United States use aerated lagoon systems to treat their wastewater. In a new study, researchers determined the effectiveness of rural lagoon systems at removing drugs, chemicals and hormone contaminants from the sewage before the water is discharged back into local waterways.

Understanding why cells stick

Posted: 14 Feb 2013 09:05 AM PST

Scientists have revealed new insights into how cells stick to each other and to other bodily structures, an essential function in the formation of tissue structures and organs. It's thought abnormalities in their ability to do play an important role in a broad range of disorders, including cardiovascular disease and cancer.

Personality plus: Researchers find link to energy rates

Posted: 14 Feb 2013 09:05 AM PST

People with a more resilient personality profile are more likely to have greater aerobic capacity, which may contribute to better health and longevity.

Low-protein diet slows Alzheimer's in mice

Posted: 14 Feb 2013 08:16 AM PST

Mice with many of the pathologies of Alzheimer's disease showed fewer signs of the disease when given a protein-restricted diet supplemented with specific amino acids every other week for four months.

Calcium is initial trigger in our immune response to healing

Posted: 14 Feb 2013 08:16 AM PST

For the first time, scientists studying the cellular processes underlying the body's response to healing have revealed how a flash of calcium is the very first step in repairing damaged tissue. The findings could lead to new therapies that speed up the healing process following injury or surgery.

Effective treatment for common gynecological problem, suggested by new study

Posted: 14 Feb 2013 07:38 AM PST

A new study offers relief for women suffering from excessive periods.

Chagas disease: Cure in sight for kissing bug's bite

Posted: 14 Feb 2013 06:23 AM PST

Chagas disease, a deadly tropical infection caused by the protozoan parasite Trypanosoma cruzi and transmitted by biting insects called "kissing bugs," has begun to spread around the world, including the U.S. Yet current treatment is toxic and limited to the acute stage.

Indian plant could play key role in death of cancer cells

Posted: 14 Feb 2013 06:23 AM PST

Scientists have identified an Indian plant, used for centuries to treat inflammation, fever and malaria, that could help kill cancer cells.

Study suggests link between untreated depression and response to shingles vaccine

Posted: 14 Feb 2013 04:56 AM PST

Results from a new study suggest a link between untreated depression in older adults and decreased effectiveness of the herpes zoster, or shingles, vaccine. Older adults are known to be at risk for shingles, a painful condition caused by the reactivation of the varicella-zoster virus, and more than a million new cases occur each year in the US. The vaccine boosts cell-mediated immunity to the virus and can decrease the incidence and severity of the condition.

Our primitive reflexes may be more sophisticated than they appear, study shows

Posted: 14 Feb 2013 04:56 AM PST

Supposedly 'primitive' reflexes may involve more sophisticated brain function than previously thought, according to researchers.

Life experiences put their stamp on the next generation: New insights from epigenetics

Posted: 14 Feb 2013 04:55 AM PST

There has long been the impression that major life events, like psychological traumas, not only have effects on individuals who directly experience these events, but also have effects on their children. Until recently, these trans-generational effects were attributed to changes in the way that parents treated their children or the child's reaction to learning about the parent's history. In a new article, researchers discuss how the emergence of the field of epigenetics has introduced a new component to this discussion -- the trans-generational transmission of changes in the regulation of gene expression.

Gut microbes could determine the severity of melamine-induced kidney disease

Posted: 14 Feb 2013 04:55 AM PST

Microbes present in the gut can affect the severity of kidney disease brought on by melamine poisoning, according to a new study.

Chemotherapy and radiotherapy: Pioneering technique to effectively treat mucositis

Posted: 14 Feb 2013 04:55 AM PST

Mucositis is one of the most frequent side effects of chemotherapy and radiotherapy in cancer patients and currently cannot be treated. Investigators have now patented a melatonin gel that they say is 100% effective against this inflammatory reaction.

A glimpse inside the control centers of cell communication

Posted: 14 Feb 2013 04:55 AM PST

Researchers have detected characteristic constructional features in a family of sensors that process signals in the human body and control physiological processes.

Surgery: How 'Mallard' dye fills need for speed

Posted: 14 Feb 2013 04:54 AM PST

Scientists have developed a new medical tool which could help surgeons carrying out complex procedures in the operating theater. Researchers have developed a dye which provides a quick and accurate method of checking heparin levels in the blood. Heparin is an important anti-coagulant which has a significant role in major surgery.

Eco-safe antibacterial fiber discovered

Posted: 14 Feb 2013 04:54 AM PST

Researchers have discovered an antibacterial polymer that can be used in everyday products such as sportswear, diapers and bandages, without causing resistant bacteria.

Rheumatism: Scientists improve arthritis treatments

Posted: 14 Feb 2013 04:54 AM PST

Scientists have presented a new therapy approach for the treatment of rheumatoid arthritis (RA), a chronic form of joint inflammation. The new therapy study was especially directed at patients who showed no adequate response to conventional treatment with tumor-necrosis-factor directed reagents (anti TNF). The new approach represents a combined form of treatment with the medication Methotrexat and Tofacitinib.
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