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People with Ala12 gene variant need to watch out for high fat in their diets

New evidence in mice bolsters the notion that a version of a gene earlier shown to protect lean people against weight gain and insulin resistance can have the opposite effect in those who eat a high-fat diet and are heavier, reveals a report in the January 7th issue of the journal Cell Metabolism, a Cell Press publication.

6 Jan 2009

Discovery of new way for bacteria to transfer toxic genes to unrelated bacterial species

In a laboratory experiment, the scientists from NYU School of Medicine discovered that Staphylococcus aureus, a notorious bacterium that causes toxic shock syndrome and many other types of infections and is the scourge of hospitals nationwide due to its growing antibiotic resistance, could co-opt viral parasites as secret pipelines for transferring toxin genes to vastly different bacterial species.

6 Jan 2009

New hope for leptin as a solution to obesity

The discovery more than a decade ago of leptin, an appetite-suppressing hormone secreted by fat tissue, generated headlines and great hopes for an effective treatment for obesity.

6 Jan 2009

Oxytocin hormone helps people recognize familiar faces

Oxytocin, a hormone involved in child-birth and breast-feeding, helps people recognize familiar faces, according to new research in the January 7 issue of The Journal of Neuroscience.

6 Jan 2009

Genetic mutation causes familial susceptibility for degenerative brain disease acute necrotizing encephalopathy

Mutation of a gene that helps proteins migrate in and out of the cell's genetic command center - the nucleus - puts some families at higher risk for the degenerative brain disease acute necrotizing encephalopathy (ANE).

6 Jan 2009

COUP-TFII plays pivotal role in obesity, metabolic syndrome

A protein known to play a role in development and the formation of organs is also an important factor in the control of obesity and diabetes, said researchers from Baylor College of Medicine in a report that appears in the current issue of the journal Cell Metabolism.

6 Jan 2009

Apolipoprotein D protects against Alzheimer's

Do Carmo and her collaborators have successfully demonstrated the protective and reparative role of apolipoprotein D, or ApoD, in neurodegenerative diseases. Their discovery suggests interesting avenues for preventing and slowing the progression of this type of illness.

6 Jan 2009

Recovery coaches reduce the number of babies exposed to drugs

Of the 4 million babies born in the United States each year around 11% have been exposed to alcohol or illicit drugs in the womb.

6 Jan 2009

Cancer cells pull off 'Houdini' escape to evade chemotherapy

Scientists have revealed for the first time that cancer cells can reverse a process which irrevocably commits normal cells to die, in a study published in the British Journal of Cancer.

6 Jan 2009

Scientists find new way to 'track' response to cancer drugs

Scientists have found a new way of accurately measuring the success of experimental cancer drugs, according to a study published in Cancer Research.

6 Jan 2009

Research initiative looks at helpful bacteria found on the skin

The study of ancient microbes may not seem consequential, but such pioneering research at the University of Oklahoma has implications for the state of modern human health.

5 Jan 2009

Stem cells from human testes can change into other body tissues

Scientists at the Stanford University School of Medicine and at UC-San Francisco have succeeded in isolating stem cells from human testes.

5 Jan 2009

The impact of substance use disorders on medical expenditures for Medicaid beneficiaries with behavioral health disorders

People with substance abuse disorders cost Medicaid hundreds of millions of dollars annually in medical care, suggesting that early interventions for substance abuse could not only improve outcomes but also save substantial amounts of money, according to a comprehensive study that examined records of nearly 150,000 people in six states.

5 Jan 2009

Females of all ages are less active than their male peers

Two studies, presented (Tuesday 6 January) at a major academic conference, reveal the gender difference in activity levels among school children and the over 70s. Both studies show males to be more physically active than females.

5 Jan 2009

Scientists now able to differentiate between normal stem cells and cancer stem cells in humans

One of the current handicaps of cancer treatments is the difficulty of aiming these treatments at destroying malignant cells without killing healthy cells in the process.

5 Jan 2009

Researchers gain new insight into cancer metastasis

Few things are as tiresome as house hunting and moving. Unfortunately, metastatic cancer cells have the relocation process down pat. Tripping nimbly from one abode to another, these migrating cancer cells often prove far more deadly than the original tumor.

5 Jan 2009

Prolonged nevirapine in breast-fed babies prevents HIV infection but leads to drug-resistant HIV

Babies born to HIV-positive mothers and given the antiretroviral drug nevirapine through the first six weeks of life to prevent infection via breast-feeding are at high risk for developing drug-resistant HIV if they get infected anyway, a team of researchers report.

5 Jan 2009