Marijuana is the most commonly used illicit drug in the United States. Roughly eight to 12 percent of marijuana users are considered "dependent" and, just like alcohol, the severity of symptoms increases with heavier use. A new study has found that use and misuse of alcohol and marijuana are influenced by a common set of genes...

Students who watch as their peers endure the verbal or physical abuses of another student could become as psychologically distressed, if not more so, by the events than the victims themselves, new research suggests...

Students who watch as their peers endure the verbal or physical abuses of another student could become as psychologically distressed, if not more so, by the events than the victims themselves, new research suggests...

Torn tendons, muscles and ligaments plague athletes in many types of sports. In attempts to help heal the wounded tissue, some athletes, both amateur and professional, have turned to platelet-rich plasma (PRP) therapy. For the treatment, doctors take a small vial of a patient's blood, about 30 milliliters, and spin it in a centrifuge to separate the platelet-rich plasma from the other components. Then they inject the concentrated platelets at the site of the patient's injury. In theory, the growth factors that platelets secrete (not including human growth hormone) spur tissue recovery. [More]

NCDEU is a scientific meeting that focuses on the latest developments in psychopharmacologic clinical trials research and related methodology. Co-sponsored by NIMH and the American Society of Clinical Psychopharmacology (ASCP), the meeting brings together over 1200 academic and industry investigators, research pharmacists, and clinicians and provides state-of-the-art workshops, panels, posters, and other special sessions devoted to advancing clinical research. Through its highly successful New Investigator Program, NCDEU emphasizes the development of research careers for those relatively new to the field of clinical research.

Research by Binghamton University psychologist Brandon Gibb could provide new weapons for the fight against childhood depression. Working with colleagues around the country, he hopes to identify the causes of mental-health problems in kids and define trajectories of risk for depression...

Research by Binghamton University psychologist Brandon Gibb could provide new weapons for the fight against childhood depression. Working with colleagues around the country, he hopes to identify the causes of mental-health problems in kids and define trajectories of risk for depression...

A nationwide study found that suicide rates for HIV patients in Switzerland decreased by more than half, after 1996 when the highly active antiretroviral therapy (HAART) was introduced. Despite the dramatic decrease, the suicide rate among HIV-infected individuals still significantly exceeded that of the general population...

A nationwide study found that suicide rates for HIV patients in Switzerland decreased by more than half, after 1996 when the highly active antiretroviral therapy (HAART) was introduced. Despite the dramatic decrease, the suicide rate among HIV-infected individuals still significantly exceeded that of the general population...

People infected with hepatitis C virus (HCV) face a long road of drug treatment that, in the best cases, can cure their infections and allow their livers to recover from HCV-associated liver disease, whose symptoms range from scarring and cancer to organ failure. Unfortunately, for nearly half of those treated for the most common strain of HCV, the standard antiviral drugs do not succeed in clearing the virus. And, even in cases where the drug regime is effective, flulike symptoms, depression and anemia are common side effects during the 48-week treatment period. [More]