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High school health classes fail to endorse safe sex habits

High school health classes fail to help students refuse sexual advances or endorse safe sex habits when teachers focus primarily on testing knowledge, a new study reveals.

16 Nov 2011

Conventional approach could soon increase recurrent stroke risk after first event

For patients who have suffered an ischemic stroke, traditional treatment prescribes keeping subsequent blood pressure levels as low as possible to reduce the risk of another stroke. A new international study, however, suggests this conventional approach may not be helpful, and could actually increase recurrent stroke risk - at least in the first few months after the first event.

16 Nov 2011

Sex during adolescence can have negative effects on body and mood well into adulthood

A new study suggests that sex during adolescence can have lasting negative effects on the body and mood well into adulthood, most likely because the activity occurs when the nervous system is still developing.

16 Nov 2011

Molecular level insights into connection between cancer and diabetes

Developing type 2 diabetes is a lengthy process. An early sign that it has begun is high levels of insulin in the blood. As long as the insulin-producing beta cells are able to compensate for the increased demand, for example when the individual is overweight, the blood sugar levels remain normal. It is not until the capacity for insulin secretion falls below the level needed that type 2 diabetes becomes a fact. The latter stage generally goes quickly, as the stressed beta cells work themselves to death.

16 Nov 2011

Researchers examine how brain recognizes color

How the brain perceives color is one of its more impressive tricks. It is able to keep a stable perception of an object's color as lighting conditions change.

16 Nov 2011

States seeking waivers, moving ahead on health reform implementation

The court could upend the national health law if the justices decide the mandate is unconstitutional. Yet, planning for full implementation of the law in Massachusetts is moving "full steam ahead," said Glen Shor, executive director of the Massachusetts Health Connector, the agency that runs the state's health insurance exchange. ... Lawmakers in Colorado, for example, created the infrastructure needed to set up the state's health insurance exchange earlier this year.

16 Nov 2011

Alcohol can readily decrease function of women's serotonin system

After only four years of problem drinking, a significant decrease in the function of the serotonin system in women's brains can be seen. This is the system that regulates such functions as impulse control and mood. It takes 12 years before a corresponding decrease is seen in men.

16 Nov 2011

GOP presidential candidates assail possible tax changes in deficit deal

As members of the super committee race against the clock in their quest for a plan to reduce the deficit, some of the Republicans running for president criticize efforts that would raise taxes.

16 Nov 2011

Researchers discover human genes that might contribute to ALS

Amyotrophic lateral sclerosis (ALS), or Lou Gehrig's disease, is a universally fatal neurodegenerative disease. Mutations in two related proteins, TDP-43 and FUS, cause some forms of ALS. Specifically, these two proteins are RNA-binding proteins that connect to RNA to regulate the translation of proteins and other cellular functions such as RNA splicing and editing. In a new study, researchers at the Perelman School of Medicine at the University of Pennsylvania discovered additional human genes with properties similar to TDP-43 and FUS that might also contribute to ALS.

16 Nov 2011

AHA honors Gladstone senior investigator with Distinguished Scientist Award

The American Heart Association will today present Gladstone Institutes Senior Investigator and President Emeritus Robert Mahley, MD, PhD, with the 2011 AHA Distinguished Scientist Award, bestowing yet another honor on one of Gladstone's founding cardiovascular scientists.

16 Nov 2011

U.N.-backed polio vaccination campaign moves forward in South Sudan

"Up to 3.2 million South Sudanese children have received vaccinations against polio in a United Nations-backed campaign to ensure the new country remains free of the deadly disease, more than two years after the last case was reported," the U.N. News Centre reports.

16 Nov 2011

NIAID's ACTG and TB Alliance partner to complete moxifloxacin Phase III trial

The TB Alliance announces the launch of a collaboration with the National Institute of Allergy and Infectious Diseases' (NIAID) AIDS Clinical Trial Group (ACTG) to conduct and help complete a Phase III clinical trial testing potentially faster-acting tuberculosis (TB) treatments.

16 Nov 2011

Scarring prevents precipitous decline in heart function after cardiac injury

After a heart attack, the portions of the heart damaged by a lack of oxygen become scar tissue. Researchers have long sought ways to avoid this scarring, which can harden the walls of the heart, lessen its ability to pump blood throughout the body and eventually lead to heart failure. But new research from the University of North Carolina at Chapel Hill School of Medicine shows that interrupting this process can weaken heart function even further.

16 Nov 2011

What will be at stake when the Supreme Court offers a decision?

President Barack Obama is so confident of the constitutionality of his signature Affordable Care Act - and so happy to cast Mitt Romney as his human shield against its Republican critics - that he did little to stop the Supreme Court from fast-tracking a ruling on the law now likely to come in the middle of the 2012 campaign.

16 Nov 2011

Community-based cancer screening may increase awareness of smoking, reduce at-risk behaviors

Large, population specific community-based screening may increase awareness of the dangers of smoking and reduce at-risk behaviors, according to a new study in the November 2011 issue of Otolaryngology-Head and Neck Surgery.

16 Nov 2011

Blood-based gene expression test more effective in ruling out obstructive CAD

A blood-based gene expression test was found to be more effective for ruling out obstructive coronary artery disease in stable symptomatic patients than myocardial perfusion imaging (MPI), a common test that uses a radioactive agent to evaluate the blood flow and function of the heart.

16 Nov 2011

High court to hear health care challenge as presidential campaign heats up

The Supreme Court on Monday agreed to hear a challenge to the 2010 health care overhaul law, President Obama's signature legislative achievement, setting the stage for oral arguments by March and a decision in late June as the 2012 presidential campaign enters its crucial final months.

16 Nov 2011

Researchers produce normal sperm from mouse cells

A Ben-Gurion University of the Negev researcher has achieved a significant breakthrough in male fertility, producing normal sperm from mouse cells.

16 Nov 2011

ZIOPHARM announces new preclinical data from two darinaparsin studies on solid tumors

ZIOPHARM Oncology, Inc., a drug development company employing small molecule and synthetic biology approaches to cancer therapy, announced today new preclinical data from two separate studies of darinaparsin, a novel organic arsenic, in various solid tumor models at the AACR-NCI-EORTC International Conference on Molecular Targets and Cancer Therapeutics, taking place November 12-16 in San Francisco.

16 Nov 2011

Poor communities, not just poor countries, affected by NTDs

In this Global Network for Neglected Tropical Diseases "End the Neglect" blog post, Alanna Shaikh, an expert in health consulting and writer for U.N. Dispatch, examines the burden of neglected tropical diseases (NTDs) in the developed world, highlighting findings from an article published in PLoS in July looking at Europe's NTD burden.

16 Nov 2011