Maternal Weaning Modulates Emotional Behavior and Regulates the Gut-Brain Axis.

Evidence shows that nutritional and environmental stress stimuli during postnatal period influence brain development and interactions between gut and brain. In this study we show that in rats, prevention of weaning from maternal milk results in depressive-like behavior, which is accompanied by changes in the gut bacteria and host metabolism. Depressive-like behavior was studied using the forced-swim test on postnatal day (PND) 25 in rats either weaned on PND 21, or left with their mother until PND 25 (non-weaned). Non-weaned rats showed an increased immobility time consistent with a depressive phenotype. Fluorescence in situ hybridization showed non-weaned rats to harbor significantly lowered Clostridium histolyticum bacterial groups but exhibit marked stress-induced increases. Metabonomic analysis of urine from these animals revealed significant differences in the metabolic profiles, with biochemical phenotypes indicative of depression in the non-weaned animals. In addition, non-weaned rats showed resistance to stress-induced modulation of oxytocin receptors in amygdala nuclei, which is indicative of passive stress-coping mechanism. We conclude that delaying weaning results in alterations to the gut microbiota and global metabolic profiles which may contribute to a depressive phenotype and raise the issue that mood disorders at early developmental ages may reflect interplay between mammalian host and resident bacteria

SARS-CoV-2 Variants, South Sudan, January-March 2021.

As the coronavirus pandemic continues, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) sequence data are required to inform vaccine efforts. We provide SARS-CoV-2 sequence data from South Sudan and document the dominance of SARS-CoV-2 lineage B.1.525 (Eta variant) during the country's second wave of infection

Social and health-related predictors of family function in older spousal caregivers: a cross-sectional study

Given the benefits of adequate family function for the health and well-being of older adults, it is important to understand what factors predict adequate family function in older people who care for their spouses. Objective: Analyse predictors of family function in older spousal caregivers. Methods: A cross-sectional study design was used to investigate a non-probabilistic sample of 298 older spousal caregivers. Home-based face-to-face interviews were used to evaluate sociodemographic variables and care context, family function (Family APGAR), cognitive function, perceived stress, and depressive symptoms. Data were analysed using multiple logistic regression with stepwise forward method for variable section. Results: Older caregivers having some degree of cognitive impairment (OR=-0.160, 95%CI 0.444–0.579), depressive symptoms (OR=-0.848, 95%CI 0.726–0.992) or high levels of stress (OR=-0.955, 95%CI 0.914-0.999) had overall lower levels of family function. Having more children was linked to approximately 1.3 times higher family function (95%CI 1.080–1.057). Conclusion: Stress, depression, cognitive decline, and number of children are predictors of family function and should be considered in social and health care strategies within the family caregiving context

Trauma na infância e adolescência: epidemiologia, tratamento e aspectos econômicos em um hospital público Epidemiology, treatment and economical aspects of multiple trauma in children and adolescents in a public hospital

INTRODUÇÃO: A realização deste trabalho foi motivada pela escassez de artigos encontrados na literatura que estudam o politrauma na infância e na adolescência.. O objetivo é descrever o perfil epidemiológico das lesões traumáticas na infância tratadas num centro de trauma, avaliar os aspectos econômicos relacionados com o gasto hospitalar e o tempo de internação de acordo com o tratamento realizado. MATERIAIS E MÉTODOS: analisamos todos os prontuários do hospital Geral de Pirajussara no período de dezembro de 2005 a dezembro de 2006. Obtivemos 182 pacientes, sendo 71% do sexo masculino e 29% do feminino; 48% brancos e 52% não brancos. RESULTADOS: houve predominância dos indivíduos do sexo masculino com 71% dos pacientes. O mecanismo de trauma mais freqüente foi a queda (36%). A média de dias de internação foi 4,1 dias, com gasto estimado de R$649,50 para cada paciente. A taxa de mortalidade foi de 2,74$ 649.50 for each patient. The most expensive and the longest periods of hospital therapy were associated to skull trauma and femoral fracture; the economic impact increased when associated lesions were present. The mortality rate was 2.74% with 5 deaths, with skull trauma being accounted for 80% of the deaths, while child abuse accounts for 40%. CONCLUSION: the pediatric population exhibits particular characteristics that make it unique concerning trauma injuries' epidemiology and handling