Associations between Psychological Distress and Body Mass Index among Law Enforcement Officers: The National Health Interview Survey 2004-2010

OBJECTIVES: To investigate the association between psychological distress and obesity among law enforcement officers (LEOs) in the United States. METHODS: Self-reported data on psychological distress based on six key questions were obtained from LEOs who participated in the National Health Interview Survey (2004-2010). We used Prochaska's cut-point of a Kessler 6 score > or = 5 for moderate/high mental distress in our analysis. Mean levels of body mass index (BMI) were compared across three levels of psychological distress. RESULTS: The average age of LEOs (n = 929) was 39.3 years; 25% were female. Overall, 8.1% of LEOs had moderate or high psychological distress; 37.5% were obese (BMI > or = 30). Mean BMI increased with increasing psychological distress (no distress, BMI = 27.2 kg/m2; mild distress, 27.6 kg/m2; and moderate/high distress, 33.1 kg/m2; p = 0.016) after adjustment for age, race, income, and education level among female officers only. Physical activity modified the association between psychological distress and BMI but only among male LEOs (interaction p = 0.002). Among male LEOs reporting low physical activity, psychological distress was positively associated with BMI (30.3 kg/m2 for no distress, 30.7 for mild distress, 31.8 for moderate/high distress; p = 0.179) after adjustment, but not significantly. This association was not significant among males reporting high physical activity. CONCLUSION: Mean BMI significantly increased as psychological distress increased among female LEOs. A longitudinal study design may reveal the directionality of this association as well as the potential role that physical activity might play in this association.

Tropical Africa as a cradle for horizontal transfers of transposable elements between species of the genera Drosophila and Zaprionus.

We have recently reported numerous cases of horizontal transfers of transposable elements between species of drosophilids. These studies revealed a substantial number of horizontal transfers between species of the subgroup melanogaster of the genus Drosophila and between these species and species of the genus Zaprionus. In this review, these transfers and similar, previously reported events are discussed and reanalysed to portray the interrelationships between the species that allowed the occurrence of so many horizontal transfers. The paper also addresses problems that may arise in drawing inferences about the time period during which the horizontal transfers occurred and the factors that may be associated with these transfers are discussed.

High association of human papillomavirus infection with oral cancer: a case-control study.

BACKGROUND: The aim of the present study was to determine the association of high-risk human papillomavirus (HR-HPV) in Mexican individuals with oral squamous cell carcinoma (OSCC) and their association with various risk factors. METHODS: We designed a matched case-control study. Cases were individuals with newly diagnosed OSCC, age- and sex-matched with controls (1:4). Demographic and clinical data were obtained; also a self-administered questionnaire about sexual behavior was included. DNA from oral brushing was purified to amplify HPV-DNA through MY09/MY11 and GP5+/GP6+ primers and subsequently subjected to sequencing. Conditional regression models were built to calculate odds ratios (ORs) and 95% confidence intervals (CI). RESULTS: Sixty two cases and 248 controls (53.2% males), median age 62 years (Q1-Q3=54-72 years) were included. HPV prevalence was 43.5% in cases and 17.3% in controls (HR-HPV: 37.1% cases, 9.7% controls). The most frequent types in cases were HPV-16 and HPV-18 (55.6 and 18.5%). The presence of HR-HPV was associated with OSCC (OR=6.2; 95% CI: 2.98-12.97) controlling for the most common risk factors. An interaction between smoking and drinking was detected, and family history of cancer was also significant (OR: 3.61; 95% CI=1.44-8.99). Early age at first sexual intercourse and large number of lifetime sexual partners showed an association with HR-HPV (p=0.019 and p=0.033, respectively). CONCLUSIONS: Oral HR-HPV was strongly associated with OSCC, suggesting that HPV-16 and -18 are risk factors for oral cancer in Mexican patients. A significant association of tobacco and alcohol was confirmed. In addition, family history of cancer was associated with OSCC. The results underline the role of HPV in OSCC and its multifactorial etiology.

Educação a distância e TV escola: apropriações de professores em formação contínua

Encontrar condições de viabilização da TV Escola em contexto de formação contínua para professores de ensino fundamental foi o principal objetivo nessa pesquisa. Para isso, foi necessário um estudo aprofundado das relações estabelecidas entre três objetos: formação contínua, educação a distância e TV escola. Os dados foram coletados em duas fases: fase exploratória e fase experimental. Os resultado das duas fases demontram que a TV Escola foi vista como um meio de formação contínua desde que respeitadas quatro diferentes condições: a necessidade de um espaço físico adequado a TV Escola, a necessidade de um coordenador que gerencie a situação de aprendizagem, os ajustes necessários à continuidade do processo, e por fim a necessidade da modificação da política do projeto TV Escola. Além, do desenvolvimento de formas de acompanhamento e avaliação qualitativas de experiências efetivas no uso da TV Escola (AU)