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Cannabis-based medicines given in a highly-controlled clinical environment unexpectedly lead to strong psychotic effects

Volunteers taking cannabis-based therapeutic drugs as part of a controlled trial, which had been approved by an ethics board as safe for the subjects, experienced psychotic effects just as strong as if they had smoked cannabis. These findings, highly unexpected in such a controlled environment, are published today in the peer-reviewed, Open Access journal BMC Psychiatry.

3 Apr 2005

Scientists identify novel regulator of telomere homeostasis

Each of our 46 chromosomes is capped by a telomere – a long stretch of repeated DNA (TTAGG). Telomeres play a key protective function in our cells, and now Dr. In Kwon Chung and colleagues at Yonsei University (Seoul, Korea) and the University of Central Florida reveal a novel mechanism to modulate telomere length.

3 Apr 2005

Location on chromosome 2 that may contain one or more genes that contribute to dyslexia

Researchers trying to tease out the genetic basis of dyslexia have discovered a location on chromosome 2 that may contain one or more genes that contribute to the reading disorder and make it difficult for people to rapidly pronounce pseudowords.

3 Apr 2005

Implantable medical device that lowers blood pressure

Doctors at the University of Rochester Medical Center are the first in the nation to implant an investigational medical device that lowers blood pressure by activating the body's natural blood pressure regulation systems.

3 Apr 2005

New methods for training eyes to pinpoint

A new study suggests there may be a better way to sharpen the eyes of radiologists, military pilots and other professionals for whom identifying objects or patterns in a monitor or visual display – often quickly and with pinpoint accuracy – is a critical part of the job.

3 Apr 2005

Novel strategy to create a genetic vaccine against P. aeruginosa

Pseudomonas aeruginosa is a bacterium that can cause respiratory tract infections, which can be life threatening in patients who have cystic fibrosis. It is therefore important to develop a vaccine against this pathogen.

3 Apr 2005

Radiation for prostate cancer doubles the risk of developing rectal cancer

Men who undergo radiation for prostate cancer have nearly double the risk of developing rectal cancer when compared to men who opt to have surgery to treat prostate cancer, according to a study published today in the American Gastroenterological Association (AGA) journal Gastroenterology.

3 Apr 2005

Blood pressure control suggests new approach to hypertension therapy

The kidneys have long been known to play a major role in many cases of high blood pressure, but a new study by researchers at Duke University Medical Center reveals that the body's control of blood pressure depends as much on other organs in the body.

3 Apr 2005

Exposure to organochlorine compounds increases the risk of suffering colorectal cancer

A team of researchers at the Universitat Autònoma de Barcelona, The Catalan Institute of Oncology and the Higher Council for Scientific Research (CSIC) have published a study indicating that exposure to organochlorine compounds, which we ingest in our diets, increases the risk of suffering colorectal cancer.

3 Apr 2005

New miniature sensors for analysing DNA

The sensors have the same size and thickness as a fingernail and reduce the time needed to identify DNA chains to several minutes or a few hours, depending on each chain.

3 Apr 2005

Dozens of new genes identified in X chromosome

By intensely and systematically comparing the human X chromosome to genetic information from chimpanzees, rats and mice, a team of scientists from the United States and India has uncovered dozens of new genes, many of which are located in regions of the chromosome already tied to disease.

3 Apr 2005

cT3 prostate cancer is operable

New findings from Mayo Clinic indicate that cT3 prostate cancer, a disease in which the cancer has spread locally from inside the prostate to immediately outside it, is operable and has 15-year cancer survival rates of almost 80 percent.

3 Apr 2005

Researchers are changing the face of drug addiction treatment

People addicted to heroin, alcohol and other drugs of abuse often fail to stay clean because they won't go to or won't stay in treatment.

3 Apr 2005

New trial for treatment of liver disease

The Nonalcoholic Steatohepatitis (NASH) Clinical Research Network is launching its first two clinical trials for the study of NASH, a liver disease that resembles alcoholic liver disease but occurs in patients who drink little or no alcohol.

3 Apr 2005

Stress may enhance the body's ability to fight the flu

Short bouts of intense social stress improved the ability in the mice to recover from the flu. The stress apparently did so by substantially boosting the production of specialized immune cells that fought the virus.

3 Apr 2005

Movie techniques, MRI/CT data combine with computer modeling of knee/patella to aid surgery

Take the kinds of movie techniques that allow animation with true-life action, throw in an anatomically-based muscle, ligament, tendon, bone and soft-tissue geometries dataset, and add individual patient MRI or CT scan data.

3 Apr 2005

$Why do black South Africans have a low hip fracture rate despite low calcium intake?$

Why do black South Africans have a low hip fracture rate despite low calcium intake?

After Nelson Mandela was released from prison February 11, 1990, all children born in the great Johannesburg area were enrolled in a 20-year longitudinal study. Officially known as “Birth to Twenty,” the study and its 3,273 youth, are colloquially referred to as “Mandela’s Children.” It’s the largest and longest running study of child and adolescent health and development in Africa, and one of the few large-scale longitudinal studies in the world.

3 Apr 2005

Being a couch potatoe may run in family

So, you don’t like to exercise? Maybe you could blame it on your great-great-grandparents. Similarly, if you’re a practiced and proud couch potato who suddenly woke up to the fact that you’re a “natural” athlete, the credit could also belong to your genes.

3 Apr 2005

Estrogen, SERMS reduce asthma impact by halting constriction

For years, anecdotal evidence suggested that ovulating or pregnant women or post-menopausal women taking estrogen supplements, experienced fewer asthma attacks and less severe asthma symptoms, strongly suggesting that perhaps estrogen affects airway smooth muscle function by preventing the hyperresponsiveness characteristic of asthma and other chronic lung diseases.

3 Apr 2005

Airway inflammation boosts infarction damage

Epidemiological studies show that the incidence of cardiovascular disease (CVD) complications are increased in long standing cases of asthma. Historically, the complications are often attributed to the chronic drug therapy used to treat asthma.

3 Apr 2005