Disruption of fertility, placenta, pregnancy outcome, and multigenerational inheritance of hepatic steatosis by organotin exposure from contaminated seafood in rats.

Early life exposure to endocrine-disrupting chemicals (EDCs) is an emerging risk factor for development of complications later in life and in subsequent generations. We previously demonstrated that exposure to the EDC organotin (OT), which is present in contaminated seafood, resulted in reproductive abnormalities in female rats. However, few studies have explored the effect of OT accumulation in seafood on pregnancy outcomes. This led us to consider the potential effects of the OT present in seafood on fertility, pregnancy, the placenta, and the offspring. In this investigation, we assessed whether exposure to the OT in contaminated seafood resulted in abnormal fertility and pregnancy features and offspring complications. OT in contaminated seafood (LNI) was administered to female rats, and their fertility, pregnancy outcomes, and fetal liver morphology were assessed. LNI caused abnormal fertility, a reduction in the total number of pups, and an increase in serum testosterone levels compared to controls. Furthermore, LNI exposure caused irregular uterine morphology with inflammation and fibrosis and led to a reduction in embryonic implantation. In pregnant rats, LNI caused abnormal lipid profiles and livers with steatosis features. LNI exposure also causes placental morpho-physiology disruption, a high presence of glycogen and inflammatory cells, and irregular lipid profiles. In addition, LNI exposure caused an increase in large amounts of carbohydrate and lipid delivery to the fetus via an increase in placental nutrient sensor protein expressions (GLUT1, IRß/mTOR and Akt). In both genders of offspring, LNI exposure led to an increase in body weights, liver megakaryocytes, lipid accumulation, and oxidative stress (OS) levels. Collectively, these data suggest that OT exposure from contaminated seafood in female rats leads to reduced fertility, uterine implantation failure, pregnancy and placental metabolic outcome irregularities, offspring adiposity, liver steatosis, and an increase in OS. Furthermore, some of the effects of OT may be the result of obesogenic and multigenerational effects of OT in adult female rats.

Efficacy and safety of a new formulation kit (shampoo + lotion) containing anti-inflammatory and antioxidant agents to treat hair loss.

Androgenetic alopecia (AGA) and telogen effluvium (TE) are common causes of hair loss, with limited options for treatment. The aim of this study was to determine the efficacy and safety of a new formulation kit (Pielus Anti-hair loss lotion and shampoo) containing anti-inflammatory and antioxidant agents in patients with TE and/or AGA. This was a prospective, single-arm, open-label study with 35 women and 10 men, median age of 44 years, with clinical diagnosis of TE and/or AGA. They used the combination of shampoo and lotion daily for 90 days. There was nonoccurrence of adverse events. Phototricogram showed increase in the average number of anagen hairs at T90 (P < .001). Scalp microphotography showed increase in total follicular units, total of hairs, and median hair per follicle unit at T90. There was an increase in diameter (P = .003) and in median maximum load and resistance to traction in T90 (P = .040). Combing and washing test demonstrated a decrease in the number of shed hairs before washing (P = .005), after washing (P = .01) and in total (P < .001). The use of shampoo+ lotion daily was safe and effective to attenuate hair loss in men and women with TE and/or AGA.

O drama do sexo desprotegido: estilizações corporais e emoções na gestão de risco para HIV entre homens que fazem sexo com homens / The drama of unprotected sex: body stylizations and emotions in risk management for HIV among men who have sex with men / El drama del sexo sin protección: estilizaciones corporales y emociones en el manejo del riesgo para el VIH entre hombres que tienen sexo con hombres

Resumo O texto discute gestões de risco para o HIV no sexo anal desprotegido (SAD) realizadas por homens que fazem sexo com homens (HSH). Está embasado na análise de 25 entrevistas com enfoque biográfico com HSH e observação participante na comunidade gay do Recife. Os homens utilizam a soroescolha: SAD com parceiros de mesma sorologia. Além da testagem, são empregados outros indicadores para inferir a condição sorológica negativa. Estilizações corporais, nuançadas pelos vínculos com os parceiros, produzem emoções que medeiam o SAD. Dada a precariedade dos indicadores utilizados, os homens recorrem muito ao teste anti-HIV. Este acontece após a exposição ao risco, como um ritual reparador para o drama do sexo desprotegido, mas sem eficácia preventiva individual.

Abstract The text discusses HIV risk management in unprotected anal sex (UAS) carried out by men who have sex with men (MSM). It is based on analyses of 25 interviews with a biographical focus with MSM, and participant observation in the gay community of Recife. The men use serosorting: UAS is chosen with partners of the same serology. Besides testing, other indicators are used to infer a serologically negative condition. Body stylizations, nuanced by affective bonds with the partners, produce emotions which mediate the willingness to engage in UAS. As they understand the precariousness of the indicators used, the men often resort to testing. This takes place after exposure to risk, as a repairing ritual for the drama of unprotected sex, but without any individual preventative effectiveness.

Resumen El texto discute el manejo del riesgo para el VIH en el sexo anal sin protección (SASP) llevado a cabo por hombres que tienen sexo con hombres (HSH). Se basa en el análisis de 25 entrevistas con enfoque biográfico con HSH y la observación participante en la comunidad gay de Recife. Los hombres utilizan el "suero elección": elige para el SASP parejas de la misma serología. Además de las pruebas, utilizan otros indicadores para inferir una condición serológica negativa. Estilizaciones corporales, matizadas por los vínculos afectivos con parejas sexuales, producen emociones que median el SASP. Como entienden la precariedad de los indicadores utilizados, los hombres a menudo recurren a las pruebas. Esto ocurre después de la exposición al riesgo, como un ritual de reparación para el drama del sexo sin protección, pero sin ninguna eficacia preventiva individual.

Assessment of work-related accidents associated with waste handling in Belo Horizonte (Brazil).

As more urban solid waste is generated, managing it becomes ever more challenging and the potential impacts on the environment and human health also become greater. Handling waste - including collection, treatment and final disposal - entails risks of work accidents. This article assesses the perception of waste management workers regarding work-related accidents in domestic and health service contexts in Belo Horizonte, Brazil. These perceptions are compared with national data from the Ministry of Social Security on accidents involving workers in solid waste management. A high proportion of accidents involves cuts and puncture injuries; 53.9% among workers exposed to domestic waste and 75% among those exposed to health service waste. Muscular lesions and fractures accounted for 25.7% and 12.5% of accidents, respectively. Data from the Ministry of Social Security diverge from the local survey results, presumably owing to under-reporting, which is frequent in this sector. Greater commitment is needed from managers and supervisory entities to ensure that effective measures are taken to protect workers' health and quality of life. Moreover, workers should defend their right to demand an accurate registry of accidents to complement monitoring performed by health professionals trained in risk identification. This would contribute to the improved recovery of injured workers and would require managers in waste management to prepare effective preventive action.

Administration of a murine diet supplemented with conjugated linoleic acid increases the expression and activity of hepatic uncoupling proteins.

Daily intake of conjugated linoleic acid (CLA) has been shown to reduce body fat accumulation and to increase body metabolism; this latter effect has been often associated with the up-regulation of uncoupling proteins (UCPs). Here we addressed the effects of a CLA-supplemented murine diet (~2 % CLA mixture, cis-9, trans-10 and trans-10, cis-12 isomers; 45 % of each isomer on alternating days) on mitochondrial energetics, UCP2 expression/activity in the liver and other associated morphological and functional parameters, in C57BL/6 mice. Diet supplementation with CLA reduced both lipid accumulation in adipose tissues and triacylglycerol plasma levels, but did not augment hepatic lipid storage. Livers of mice fed a diet supplemented with CLA showed high UCP2 mRNA levels and the isolated hepatic mitochondria showed indications of UCP activity: in the presence of guanosine diphosphate, the higher stimulation of respiration promoted by linoleic acid in mitochondria from the CLA mice was almost completely reduced to the level of the stimulation from the control mice. Despite the increased generation of reactive oxygen species through oxi-reduction reactions involving NAD(+)/NADH in the Krebs cycle, no oxidative stress was observed in the liver. In addition, in the absence of free fatty acids, basal respiration rates and the phosphorylating efficiency of mitochondria were preserved. These results indicate a beneficial and secure dose of CLA for diet supplementation in mice, which induces UCP2 overexpression and UCP activity in mitochondria while preserving the lipid composition and redox state of the liver.