Abnormal chondrocyte apoptosis in the cartilage growth plate is influenced by genetic background and deletion of CHOP in a targeted mouse model of pseudoachondroplasia.

Pseudoachondroplasia (PSACH) is an autosomal dominant skeletal dysplasia caused by mutations in cartilage oligomeric matrix protein (COMP) and characterised by short limbed dwarfism and early onset osteoarthritis. Mouse models of PSACH show variable retention of mutant COMP in the ER of chondrocytes, however, in each case a different stress pathway is activated and the underlying disease mechanisms remain largely unknown. T585M COMP mutant mice are a model of moderate PSACH and demonstrate a mild ER stress response.

Assortativity coefficient-based estimation of population patterns of sexual mixing when cluster size is informative.

Objectives: Population sexual mixing patterns can be quantified using Newman's assortativity coefficient (r). Suggested methods for estimating the SE for r may lead to inappropriate statistical conclusions in situations where intracluster correlation is ignored and/or when cluster size is predictive of the response. We describe a computer-intensive, but highly accessible, within-cluster resampling approach for providing a valid large-sample estimated SE for r and an associated 95% CI.

Wake me up when there's a crisis: progress on state pandemic influenza ethics preparedness.

We assessed the progress since 2005 of state plans for pandemic influenza and found that 7 states had recommended steps to further clarify ethical processes or decisions; 6 states had made some progress but almost exclusively in hospital preparedness. Having a high-level public health leader, such as a health department director, committed to ethics was the key determinant of progress. Some state health departments may be destined to gain an appreciation for ethics through ethical mishaps.

Perceived neighborhood safety and depressive symptoms among African American crack users.

This study examined the association between perceived neighborhood safety and depressive symptoms among 443 out-of-treatment African American crack cocaine users interviewed between 2000 and 2002 in North Carolina and tested the regression of depression on perceived neighborhood safety and common predictors of depression. Perceived neighborhood safety was an important predictor of depressive symptoms in models that adjusted for other correlates of depression. The findings are limited by the cross-sectional nature of the data and the complex etiology and course of depression.

Alcohol, cannabis, and methamphetamine use and other risk behaviours among Black and Coloured South African women: a small randomized trial in the Western Cape.

Background: There is a pressing need for brief behavioural interventions to address the intersection of high HIV prevalence, increasing substance use, and high-risk sex practices among South African women. The primary aim of this pilot, randomized trial was to examine whether an adapted evidence-based intervention would be equally, more, or less effective at reducing HIV risk behaviours when delivered using an individual or group format. The secondary aim was to examine differences between Black and Coloured South African women across pre- and post-intervention measures of alcohol and illicit drug use and sex risk behaviours.

Health care-based interventions for women who have experienced sexual violence: a review of the literature.

Thirty publications that evaluated health care-based interventions for women who experienced sexual violence were reviewed. The findings highlight that clinicians often need training in the provision sexual assault care, and that not all emergency departments have sexual assault care protocols. Studies examining effectiveness found that Sexual Assault Nurse Examiner programs are very helpful, that health care-based sexual assault treatment settings attract more women than do forensic-based settings, that sexual assault survivors often prefer a combination of medication and counseling treatment, and that preexam administration of a video explaining the collection of forensic evidence may reduce women's stress during the procedure.