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Exercise may not be key to obesity epidemic

A recent international study fails to support the common belief that the number of calories burned in physical activity is a key factor in rising rates of obesity.

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

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

Nicotine gum effective for gradual smoking reduction and cessation

Nicotine gum has been in use for over 20 years to help smokers quit abruptly yet close to two-thirds of smokers report that they would prefer to quit gradually.

6 Jan 2009

Many babies with simple febrile seizures can avoid spinal tap

When babies develop a fever high enough or abrupt enough to cause a seizure, frightened parents often rush them to the emergency room, where their workup frequently includes a lumbar puncture (spinal tap) to rule out bacterial meningitis.

6 Jan 2009

Health-monitoring technology helps seniors live at home longer

Many older adults want to remain active and independent for as long as possible. Seniors want to age in their own homes and avoid moving to institutions or nursing homes.

6 Jan 2009

Home visits lower likelihood of low birth weight babies

Socially disadvantaged mothers who receive home visits from trained community visitors are less likely to deliver low birth weight babies than other mothers in similar circumstances, a new study finds.

6 Jan 2009

Hand-held game devices lower fitness in children

If videogames like "Madden NFL" didn't exist, 12-year-old Tom might go outside and toss around a real football - and he'd have a better chance of sprinting for a touchdown without getting winded.

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

Lung cancer related to indoor radon could easily be prevented

About 1,100 people each year die in the UK from lung cancer related to indoor radon, but current government protection policies focus mainly on the small number of homes with high radon levels and neglect the 95% of radon related deaths caused by lower levels of radon, according to a study published on bmj.com.

6 Jan 2009

Hepatitis B and C in U.S.

In the last decade, more than 60,000 patients in the United States were asked to get tested for hepatitis B virus (HBV) and hepatitis C virus (HCV) because health care personnel in settings outside hospitals failed to follow basic infection control practices, according to a new study by the CDC.

6 Jan 2009

Innovative brain-scan technology helps visualize brain aging before symptoms appear

UCLA scientists have used innovative brain-scan technology developed at UCLA, along with patient-specific information on Alzheimer's disease risk, to help diagnose brain aging, often before symptoms appear.

6 Jan 2009

Bacteria discovered in amniotic fluids of women who undergo preterm birth

Researchers from Case Western Reserve University and Yale University have made a significant advancement in understanding the cause behind why some pregnant women suffer from inflammations in the inner womb without any signs of an infection.

6 Jan 2009

Experts warn Australia is surrounded by a ring of disease hot-spots

Australian biosecurity experts have warned that Australia is surrounded to its north by a 'ring of fire' where new human and animal plagues could appear with very little warning and with potentially dire consequences.

6 Jan 2009

Sildenafil may help protect heart from high blood pressure damage

Johns Hopkins and other researchers report what is believed to be the first direct evidence in lab animals that the erectile dysfunction drug sildenafil amplifies the effects of a heart-protective protein.

5 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

Metadherin gene linked to metastasis of breast cancer

A team of researchers at Princeton University and The Cancer Institute of New Jersey has identified a long-sought gene that is fatefully switched on in 30 to 40 percent of all breast cancer patients, spreading the disease, resisting traditional chemotherapies and eventually leading to death.

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