Rationale: Ecstasy (MDMA) is a psychostimulant drug which is increasingly associated with psychobiological dysfunction. While some recent studies suggest acute changes in neuroendocrine function, less is known about long term changes in HPA functionality in recreational users. Objectives: The current study is the first to explore the effects of ecstasy-polydrug use on psychological distress and...

Paratuberculosis is a chronic bowel disease of ruminants caused by Mycobacterium avium subsp. paratuberculosis (MAP). Its secretion through semen highlights the importance of paratuberculosis-free breeding bulls. The breeding and teaser bulls at three semen production units (SPUs) located in Punjab, Pakistan, were screened for the presence of antibodies against MAP. A total of 253 samples were ...

OBJECTIVES The purpose of this study was to better understand substance use behaviors and deleterious health consequences among individuals with HIV. METHODS We examined a multicenter cohort of HIV-infected patients (n = 3,413) receiving care in 4 US cities (Seattle, Birmingham, San Diego, Boston) between December 2005 and April 2010 in the Centers for AIDS Research Network of Integrated Clin...

Using the National Longitudinal Study of Adolescent Health (Add Health), the current study applies a general biosocial theoretical model to polydrug use and associated substance-related problems. Along with measures of molecular genetic polymorphisms, neurocognitive skills, self-control, and environmental pathogens a recursive path modeling strategy was used to empirically examine the relations...

To examine patterns of mono- versus polydrug abuse, data were obtained from intake records of 69,891 admissions to publicly funded treatment programs in Tennessee between 1998 and 2004. While descriptive statistics were employed to report frequency and patterns of mono- and polydrug abuse by demographic variables and by study years, bivariate logistic regression was applied to assess the probab...