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Flow of potassium ions in brain cells is key to sexual arousal

When it comes to sex, a female rat knows how to avoid a communication breakdown. To announce her sexual readiness, she will automatically arch her back, deflect her tail and stand rigid to allow an aroused male to mount.

3 Jun 2008

Long term dope use shrinks the brain

According to Australian researchers the long term use of marijuana may cause parts of the brain which control memory, emotion and aggression, to shrink.

3 Jun 2008

NGAL protein levels in simple urine test speed diagnosis of failing kidneys

Walk into any emergency department complaining of chest pain and you are likely to have blood drawn. Within hours it should be clear whether you've had a heart attack, based on enzyme levels in your blood and whether those levels reveal the tissue damage normally associated with a heart attack or other major cardiac event.

2 Jun 2008

Probiotics provide hay fever hope

With the peak grass pollen season approaching, scientists can reveal that a daily dose of probiotic can change the immune status of people with hay fever.

2 Jun 2008

Chronic inflammation of the intestine or stomach damages DNA

Chronic inflammation of the intestine or stomach can damage DNA, increasing the risk of cancer, MIT scientists have confirmed.

2 Jun 2008

New approach to treating autoimmune disease offered by Weizmann scientists

In autoimmune diseases, the immune system turns against the body's own tissues and organs, wreaking havoc and destruction for no apparent reason. Partly because the origins of these diseases are so obscure, no effective treatment exists, and the suffering they inflict is enormous.

2 Jun 2008

New genetic mutations involved in inflammatory intestinal disorders discovered

The discovery of new genetic mutations involved in inflammatory intestinal disorders could lead to a better understanding of these common conditions, two scientists told the annual conference of the European Society of Human Genetics today (Monday 2 June).

2 Jun 2008

Long-term, heavy cannabis use may shrink brain's hippocampus and amygdala

Long-term, heavy cannabis use may be associated with structural abnormalities in areas of the brain known as the hippocampus and amygdala, according to a report in the June issue of Archives of General Psychiatry.

2 Jun 2008

People who are obese may be more likely to become depressed

A major review in Clinical Psychology: Science and Practice reveals that research indicates people who are obese may be more likely to become depressed, and people who are depressed may be more likely to become obese.

2 Jun 2008

Distinct clusters of genetic markers linked to treatment responses for smoking cessation

Scientists have identified distinct clusters of genetic markers associated with the likelihood of success or failure of two smoking cessation treatments, nicotine replacement therapy (NRT) and the medication bupropion (Zyban). This study, supported by the National Institute on Drug Abuse (NIDA) and the National Cancer Institute (NCI), part of the National Institutes of Health (NIH), was published in the June issue of the journal Archives of General Psychiatry.

2 Jun 2008

New model predicts whether patients will be free of renal cancer 12 years after initial treatment

A UT Southwestern Medical Center physician and other researchers have developed a unique statistical model that predicts the probability of a patient being cancer free 12 years after initial surgical treatment.

2 Jun 2008

How advanced prostate cancer becomes resistant to androgen-deprivation therapy

For the past 70 years the treatment of choice for advanced, metastatic prostate cancer has been androgen-deprivation therapy. That is, the suppression of circulating testosterone - the hormone that fuels prostate-cancer growth - via surgical castration (orchiectomy) or medical castration with testosterone-blocking drugs. While such therapy buys time for patients, it is not a cure, as inevitably the cancer becomes resistant to the androgen deprivation and continues to grow.

2 Jun 2008

Survivors of childhood Hodgkin's lymphoma at higher risk of future health problems

Adults who survived childhood Hodgkin's Lymphoma should be especially vigilant about cancer and cardiovascular screenings, according to researchers from Wake Forest University Baptist Medical Center and colleagues.

2 Jun 2008

Researchers find gene signature profile for metastasis

A common signature of tiny, specific pieces of non-coding genetic material known as microRNAs (miRNAs) may be directly involved in the spread of cancer to other parts of the body.

2 Jun 2008

UT Southwestern mouse model mimics hyperglycemia, aids in diabetes research

UT Southwestern Medical Center researchers have genetically engineered a laboratory mouse in which pancreatic beta cells can regenerate after being induced to die. The new animal model's regenerative ability may provide future insights into improved treatments of diabetes, which affects millions of Americans.

2 Jun 2008

Potential hypophosphatasia therapy discovered

Researchers at the Burnham Institute for Medical Research, led by José Luis Millán, Ph.D., have demonstrated in mice the first successful use of enzyme replacement therapy to prevent hypophosphatasia (HPP), a primary skeletal disease of genetic origin. This discovery lays the foundation for future clinical trials for HPP patients.

1 Jun 2008

Novel chemo drug helps treat prostate cancer

Men with a certain type of prostate cancer have been shown to respond to a new chemotherapy drug, Sagopilone, plus prednisone in an international trial led by Oregon Health & Science University Cancer Institute researchers.

1 Jun 2008

Yale researchers block transforming growth factor to clear up amyloid plaques in mice

Blocking a common immune system response cleared up plaques associated with Alzheimer's Disease and enabled treated mice to recover some lost memory, Yale University researchers report Friday in the journal Nature Medicine.

1 Jun 2008

Researchers pinpoint gene mutations responsible for 10 percent of non-familial cases of schizophrenia

Scans of the genome of patients with schizophrenia have revealed rare spontaneous copy number mutations that account for at least 10 percent of the non-familial cases of the disease.

1 Jun 2008

Tumor suppressor genes speed up and slow down aging in engineered mouse

Mayo Clinic researchers have developed an animal model that can test the function of two prominent tumor suppressor genes, p16 and p19, in the aging process. Scientists knew that both these genes were expressed at increased levels as humans and mice age, but their role in the aging process was not clear. Findings by the Mayo team show that p16 provides gas to accelerate cellular aging, while p19 stops that process.

1 Jun 2008