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Growing Evidence Of Marijuana Smoke's Potential Dangers
In a finding that challenges the increasingly popular belief that smoking marijuana is less harmful to health than smoking tobacco, researchers in Canada are reporting that smoking marijuana, like smoking tobacco, has toxic effects on cells. Their study is scheduled for the Aug. 17 issue of ACS" Chemical Research in Toxicology, a monthly journal.
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Halting A Pandemic: NIH Mounts Search For A Vaccine
Bracing for an outbreak of 2009 H1N1 (swine-origin) flu that a Saint Louis University infectious diseases expert estimates could sicken one in five people this fall, scientists at eight Vaccine and Treatment Evaluation Units funded by the National Institutes of Health (NIH) are launching a series of clinical trials this summer to test vaccines to protect against the illness. Purchase zoloft to treat depression.
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Diabetes: MRI May Help In The Diagnosis, Staging And Treatment
Noninvasive imaging (MRI) may aid physicians in the early diagnosis, staging and treatment of diabetes, according to a study performed at Massachusetts General Hospital and Harvard Medical School in Boston, MA. This is the first study of its kind to apply noninvasive imaging techniques to diabetes research.
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Primary Insomnia Linked To A Neurochemical Abnormality

A research abstract presented on June 9, at SLEEP 2009, the 23rd Annual Meeting of the Associated Professional Sleep Societies, is the first demonstration of a specific neurochemical abnormality in adults with primary insomnia (PI), providing greater insight to the limited understanding of the condition"s pathology. Results indicate that gamma-aminobutyric acid (GABA), the most common inhibitory transmitter in the brain, is reduced by nearly 30 percent in individuals who suffer from primary insomnia for more than six months. These findings suggest that primary insomnia is a manifestation of a neurobiological state of hyperarousal, which is present during both waking and sleep at physiological and cognitive levels. According to principal investigator Dr. John Winkelman of Brigham and Women"s Hospital, at Harvard Medical School in Boston, Mass., the recognition that primary insomnia is associated with a specific neurochemical deficiency helps validate the often misunderstood complaint of insomnia. "Recognition that insomnia has manifestations in the brain may increase the legitimacy of those who have insomnia and report substantial daytime consequences," he said. "Insomnia is not just a phenomenon observed at night, but has daytime consequences for energy, concentration and mood." The study included 16 non-medicated individuals (eight of whom were women) with PI and 16 individuals (seven women) who were deemed normal sleepers. Global brain GABA levels were measured in both groups. PI was established through clinical interviews, sleep diary, actigraphy use and polysomnograpy. Winkelman published similar results in the Nov. 1, 2008, issue of the journal SLEEP. Abstract Title: Reduced brain GABA in primary insomnia: preliminary data from 4T proton magnetic resonance spectroscopy (1H-MRS) Presentation Date: Tuesday, June 9 Category: Sleep Disorders - Insomnia Abstract ID: 0768 Kelly Wagner American Academy of Sleep Medicine


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