Feed aggregator

Bifactor latent structure of ADHD/ODD symptoms: predictions of dual-pathway/trait-impulsivity etiological models of ADHD

Test 3 March 29, 2016 - 3:14pm
Mothers' and fathers' ratings of ADHD-IN, ADHD-HI, and ODD symptoms in a community sample of 4,658 children and adolescents (53% female) from Brazil, Thailand, and the US were used to evaluate the measurement models.
Categories: News

Evidence for linkage and association of GABRB3 and GABRA5 to panic disorder

Test 3 March 29, 2016 - 3:14pm
Panic disorder (PD) is a debilitating anxiety disorder characterized by episodes of intense fear with autonomic and psychological symptoms that lead to behavioral impairment. A convergence of genetic and biological evidence implicates gamma-aminobutyric acid type A receptor subunits on chromosome 15q12 as candidate genes for PD. This study investigated 120 Caucasian, multiplex PD pedigrees using regional microsatellites (chr15q11-13) and found support for linkage (logarithm of odds (LOD) ⩾2), with a prominent parent-of-origin effect.
Categories: News

Community-based harm reduction substance abuse treatment with methamphetamine-using men who have sex with men

Test 3 March 29, 2016 - 3:13pm
Harm reduction approaches endeavor to assist individuals with avoiding the most detrimental consequences of risk taking behaviors, but limited research has documented the outcomes of harm reduction substance abuse treatment. In total, 211 methamphetamine-using men who have sex with men (MSM) enrolled in two outcome studies of substance abuse treatment programs that were implementing an evidence-based, cognitive-behavioral intervention (i.e., the Matrix Model) from a harm reduction perspective.
Categories: News

Factors predicting development of opioid use disorders among individuals who receive an initial opioid prescription

Test 3 March 29, 2016 - 3:12pm
Prescription drug abuse in the United States and elsewhere in the world is increasing at an alarming rate with non-medical opioid use, in particular, increasing to epidemic proportions over the past two decades. It is imperative to identify individuals most likely to develop opioid abuse or dependence to inform large-scale, targeted prevention efforts.
Categories: News

Reducing risk for illicit drug use and prescription drug misuse: High school gay-straight alliances and lesbian, gay, bisexual, and transgender youth

Test 3 March 29, 2016 - 3:11pm
Previous research suggests that lesbian, gay, bisexual, and transgender (LGBT) youth are at elevated risk for using illicit drugs and misusing prescription drugs relative to heterosexual youth. Previous research also indicates that LGBT youth who attend high schools with a gay-straight alliance (GSA) report having fewer alcohol problems and lower levels of cigarette smoking. The present study investigates whether the absence of a GSA is associated with risk for illicit drug use and prescription drug misuse in a sample of 475 LGBT high school students (M age=16.79) who completed an online survey.
Categories: News

Reliability of functional magnetic resonance imaging activation during working memory in a multi-site study

Test 3 March 29, 2016 - 2:48pm
Multi-site neuroimaging studies offer an efficient means to study brain functioning in large samples of individuals with rare conditions; however, they present new challenges given that aggregating data across sites introduces additional variability into measures of interest. Assessing the reliability of brain activation across study sites and comparing statistical methods for pooling functional data are critical to ensuring the validity of aggregating data across sites.
Categories: News

Facilitating culture-centered communication between health care providers and veterans transitioning from military deployment to civilian life

Test 3 March 29, 2016 - 2:46pm
To describe returning veterans' transition experience from military to civilian life and to educate health care providers about culture-centered communication that promotes readjustment to civilian life.
Categories: News

Clues to maintaining calorie restriction? Psychosocial profiles of successful long-term restrictors

Test 3 March 29, 2016 - 2:46pm
To combat the obesity epidemic, interventions and treatments often recommend low-calorie dieting. Calorie restriction (CR) as a weight intervention, however, is often unsuccessful, as most people cannot sustain the behavior.
Categories: News

Does abortion reduce self-esteem and life satisfaction?

Test 3 March 29, 2016 - 2:30pm
This study aims to assess the effects of obtaining an abortion versus being denied an abortion on self-esteem and life satisfaction.
Categories: News

Lhx6 directly regulates Arx and CXCR7 to determine cortical interneuron fate and laminar position

Test 3 March 29, 2016 - 2:29pm
Cortical GABAergic interneurons have essential roles for information processing and their dysfunction is implicated in neuropsychiatric disorders. Transcriptional codes are elucidating mechanisms of interneuron specification in the MGE (a subcortical progenitor zone), which regulate their migration, integration, and function within cortical circuitry.
Categories: News

Hippocampal volume is inversely related to PTSD duration

Test 3 March 29, 2016 - 2:29pm
Numerous imaging studies have reported smaller hippocampal volumes in patients with PTSD. To investigate whether decreased hippocampal volume is associated with PTSD chronicity, independent of age, we used hierarchical linear regression to examine the relationship between PTSD duration (estimated from the amount of time that had elapsed since the traumatic event; mean=17 years; range=6-36 years) and hippocampal volume, adjusting for age and other factors.
Categories: News

Decreased smoking disparities among Vietnamese and Cambodian communities

Test 3 March 29, 2016 - 2:28pm
Since 1964, smoking prevalence in the United States has declined because of nationwide intervention efforts. However, smoking interventions have not been implemented uniformly throughout all communities. Some of the highest smoking rates in the United States have been reported among Southeast Asian men, and socioeconomic status has been strongly associated with smoking.
Categories: News

Major progress towards elucidating brain wiring diagrams

Test 3 March 29, 2016 - 2:28pm
Systematic comparison of adeno-associated virus and biotinylated dextran amine reveals equivalent sensitivity between tracers and novel projection targets in the mouse brain.
Categories: News

Interneurons from embryonic development to cell-based therapy

Test 3 March 29, 2016 - 2:28pm
Many neurologic and psychiatric disorders are marked by imbalances between neural excitation and inhibition. In the cerebral cortex, inhibition is mediated largely by GABAergic (γ-aminobutyric acid-secreting) interneurons, a cell type that originates in the embryonic ventral telencephalon and populates the cortex through long-distance tangential migration.
Categories: News

Association of alcohol use biomarkers and cognitive performance in veterans with problematic alcohol use and posttraumatic stress disorder

Test 3 March 29, 2016 - 2:27pm
The authors conducted a study of alcohol use biomarkers and cognitive performance among 85 veterans with problematic alcohol use and posttraumatic stress disorder (PTSD). All analyses were adjusted for demographics, depression, anxiety, and PTSD symptoms. Elevated levels of aspartate aminotransferase were associated with worse performance on the Trail Making Test Part A and Hopkins Verbal Learning Test. Two other biomarkers were not associated with any neurocognitive measures.
Categories: News

Proteomic analysis of saliva in HIV-positive heroin addicts reveals proteins correlated with cognition

Test 3 March 29, 2016 - 2:26pm
The prevalence of HIV-associated neurocognitive disorders (HAND) remains high despite effective antiretroviral therapies. Multiple etiologies have been proposed over the last several years to account for this phenomenon, including the neurotoxic effects of antiretrovirals and co-morbid substance abuse; however, no underlying molecular mechanism has been identified. Emerging evidence in several fields has linked the gut to brain diseases, but the effect of the gut on the brain during HIV infection has not been explored.
Categories: News

Decision making and prostate cancer screening

Test 3 March 29, 2016 - 2:25pm
This article presents an overview of the challenges that men encounter in making decisions about prostate cancer screening, including complex affective and cognitive factors and controversies in the interpretation of the evidence on prostate cancer screening. Shared decision making involving patient decision aids are discussed as approaches that can be used to improve the quality of prostate cancer screening decisions, including a close alignment between a man's values, goals, and preferences and his choice about screening.
Categories: News

Cytokine gene variations associated with subsyndromal depressive symptoms in patients with breast cancer

Test 3 March 29, 2016 - 2:25pm
This study explored the relationships between variations in cytokines genes and depressive symptoms in a sample of patients who were assessed prior to and for six months following breast cancer surgery. Phenotypic differences between Resilient (n = 155) and Subsyndromal (n = 180) depressive symptom classes, as well as variations in cytokine genes were evaluated.
Categories: News

Smoking cessation outcomes among sexual and gender minority and nonminority smokers in extended smoking treatments

Test 3 March 29, 2016 - 2:24pm
Sexual and gender minority individuals (i.e., lesbian, gay, bisexual, and transgender [LGBT]) have a higher smoking prevalence than nonminority individuals. There is limited evidence of smoking abstinence success in nontailored smoking treatments among LGBT smokers.
Categories: News

Emergence of context-dependent variability across a basal ganglia network

Test 3 March 29, 2016 - 2:23pm
Context dependence is a key feature of cortical-basal ganglia circuit activity, and in songbirds the cortical outflow of a basal ganglia circuit specialized for song, LMAN, shows striking increases in trial-by-trial variability and bursting when birds sing alone rather than to females. To reveal where this variability and its social regulation emerge, we recorded stepwise from corticostriatal (HVC) neurons and their target spiny and pallidal neurons in Area X.
Categories: News

Pages