Vidyya Medical News Service
Volume 5 Issue 255 Published - 14:00 UTC 08:00 EST 12-Sep-2003 Next Update - 14:00 UTC 08:00 EST 13-Sep-2003
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Emory researchers find Paxil improves memory and brain structure in PTSD sufferers
Emory University researchers have found that paroxetine HCL (Paxil) produces measurable improvement in verbal memory and also increases the size of the hippocampus, a key area of the brain involved in learning and remembering, in persons suffering from post-traumatic stress disorder (PTSD). Their study, which will be published in the Oct. 1 edition of Biological Psychiatry, also found that Paxil significantly reduces the three main symptom clusters of PTSD–re-experiencing the traumatic event; avoidance and emotional numbing related to experiences that recall the traumatic event; and hyperarousal at inappropriate times.. more

Prescribing information: Paxil
Patients in a PTSD study experienced significant improvement in verbal declarative memory functions and retention, a four percent increase in the right hippocampus, which affects visual/spatial functioning, and a 5.2 percent increase in their left hippocampus, which controls verbal functioning; decreased cortisol levels, a stress regulator, in the brain; and significant relief of each of the three major symptom clusters of PTSD. Get the prescribing information for paxil, today in Vidyya.  more


Toxin reveals new antibiotic resistance mechanism
Over time, many antibiotic-producing microbes have evolved a variety of ways of not succumbing to the toxins they use to keep competitors at bay. But these methods of evading their own chemical warfare agents tend to be shared among bacteria and are at the root of antibiotic resistance among the pathogenic bacteria that also borrow the defense mechanisms.  more

Ingredient in domestic detergent may not contribute to antibiotic resistance
An ingredient commonly found in antibacterial products does not appear to contribute to antibiotic resistance, say researchers from the University of Manchester, United Kingdom and Proctor and Gamble in Cincinnati, Ohio. Their findings appear in the September 2003 issue of the journal Applied and Environmental Microbiology.  more

Researchers find blue light important for setting biological clock
Researchers from Brigham and Women’s Hospital (BWH) in Boston and Jefferson Medical College have found that the body’s natural biological clock is more sensitive to shorter wavelength blue light than it is to the longer wavelength green light, which is needed to see.  more

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