Social distancing, feeling of sadness and lifestyles of the Brazilian population during the COVID-19 pandemic / Distanciamento social, sentimento de tristeza e estilos de vida da população brasileira durante a pandemia de COVID-19

The COVID-19 pandemic has had biopsychosocial impacts on individual and collective health. The aim of the study was to analyze adherence to social distance, the repercussions on mood and changes in the lifestyles of the Brazilian adult population during the beginning of the COVID-19 pandemic. This is a cross-sectional study with adult individuals living in Brazil (n = 45,161) who participated in the virtual health survey ConVid - Behavior Survey, from April 24 to May 24, 2020. Data collection was performed via web, using a self-administered questionnaire. The prevalence and 95% confidence interval of the studied variables were calculated. Of the sample studied, only 1.5% led normal lives, without any social restrictions and 75% stayed at home, of which 15% stayed strictly at home. The frequent feelings of sadness or depression (35.5%), isolation (41.2%) and anxiety (41.3%) were reported by a large part of the studied population. It was found that 17% of participants reported increased consumption of alcoholic beverages and 34% of smokers increased the number of cigarettes. There was an increase in the consumption of unhealthy foods and a reduction in the practice of physical activity in the period studied. It was concluded that there was a high adherence to social distance and an increase in feelings of sadness, depression and anxiety, as well as an increase in the consumption of unhealthy foods, use of alcoholic beverages and cigarettes and a reduction in the practice of physical activity. These changes are worrying and can result in damage to individual and collective health in the medium and long term.

A pandemia de COVID-19 acarretou impactos biopsicossociais à saúde individual e coletiva. O objetivo do estudo foi analisar a adesão ao distanciamento social, as repercussões no estado de ânimo e mudanças nos estilos de vida da população adulta brasileira durante o início da pandemia da COVID-19. Trata-se de estudo transversal com indivíduos adultos residentes no Brasil (n = 45.161) que participaram do inquérito de saúde virtual ConVid - Pesquisa de Comportamentos, no período de 24 de abril a 24 de maio de 2020. A coleta de dados foi realizada via web, utilizando-se de um questionário autopreenchido. Foram calculadas as prevalências e intervalo de 95% de confiança das variáveis estudadas. Da amostra estudada, apenas 1,5% levou vida normal, sem nenhuma restrição social e 75% ficaram em casa, sendo que destes 15% ficaram rigorosamente em casa. Os sentimentos frequentes de tristeza ou depressão (35,5%), isolamento (41,2%) e ansiedade (41,3%) foram reportados por grande parte da população estudada. Verificou-se 17% dos participantes reportaram aumento do consumo de bebidas alcoólicas e de 34% dos fumantes aumentaram o número de cigarros. Observou-se aumento no consumo de alimentos não saudáveis e redução da prática de atividade física no período estudado. Conclui-se que houve elevada adesão ao distanciamento social e aumento dos sentimentos de tristeza, depressão e ansiedade, bem como aumento de consumo de alimentos não saudáveis, uso de bebidas alcóolicas e cigarros e redução da prática de atividade física. Essas mudanças são preocupantes e podem resultar em danos à saúde individual e coletiva a médio e longo prazo.  

Engineering of Nanofibrous Amorphous and Crystalline Solid Dispersions for Oral Drug Delivery.

Poor aqueous solubility (<0.1 mg/mL) affects a significant number of drugs currently on the market or under development. Several formulation strategies including salt formation, particle size reduction, and solid dispersion approaches have been employed with varied success. In this review, we focus primarily on the emerging trends in the generation of amorphous and micro/nano-crystalline solid dispersions using electrospinning to improve the dissolution rate and in turn the bioavailability of poorly water-soluble drugs. Electrospinning is a simple but versatile process that utilizes electrostatic forces to generate polymeric fibers and has been used for over 100 years to generate synthetic fibers. We discuss the various electrospinning studies and spinneret types that have been used to generate amorphous and crystalline solid dispersions.

Solid microcrystalline dispersion films as a new strategy to improve the dissolution rate of poorly water soluble drugs: A case study using olanzapine.

In this study, we evaluate the dissolution rate enhancement of solid microcrystalline dispersion (SMD) films of olanzapine (OLZ) formulated with four water-soluble polymers namely poly(N-vinylpyrrolidone) (PVP), poloxamer 188 (P188), poloxamer 407 (P407) and Soluplus(®) (SLP). Prepared formulations were characterised to determine particle size, morphology, hydrogen bonding interactions, thermal characteristics as well as in vitro dissolution studies conducted under sink conditions (pH 6.8). Particle size of OLZ in all formulations ranged between 42 and 58µm. Attenuated Total Reflectance Fourier Transform Infrared spectroscopy (ATR-FTIR), Differential Scanning Calorimetry (DSC) and Hot-Stage Microscopy (HSM) studies confirmed OLZ was well maintained in its crystalline state during the formulation process. In vitro dissolution studies showed immediate drug release from all formulation when compared to the drug alone. The greatest increase in in vitro dissolution rate was observed in formulations containing P188 most likely due to its enhanced hydrophilic and surfactant properties compared to the other agents used. Overall, this study successfully generated OLZ loaded SMD films with improved in vitro dissolution rates which is highly likely to result in improved oral bioavailability in vivo.

Sociodemographic determinants of prevalence and incidence of Helicobacter pylori infection in Portuguese adults.

BACKGROUND: Understanding the determinants of Helicobacter pylori infection in adults is essential to predict the burden of H. pylori-related diseases. We aimed to estimate the prevalence and incidence of H. pylori infection and to identify its major sociodemographic correlates in an urban population from the North of Portugal. MATERIAL AND METHODS: A representative sample of noninstitutionalized adult inhabitants of Porto (n = 2067) was evaluated by ELISA (IgG) and a subsample (n = 412) was tested by Western Blot to assess infection with CagA-positive strains. Modified Poisson and Poisson regression models were used to estimate crude and sex-, age-, and education-adjusted prevalence ratios (PR) and incidence rate ratios (RR), respectively. RESULTS: The prevalence of H. pylori infection was 84.2% [95% confidence interval (95%CI): 82.4-86.1]. It increased across age-groups in the more educated subjects, (18-30 years: 72.6%; ≥71 years: 88.1%; p for trend <0.001) and decreased with education in the younger (≤4 schooling years: 100.0%; ≥10 schooling years: 72.6%; p for trend <0.001). Living in a more deprived neighborhood was associated with a higher prevalence of infection, only in the younger (PR = 1.20, 95%CI: 1.03-1.38) and more educated participants (PR = 1.15, 95%CI: 1.03-1.29). Among the infected, the proportion with CagA-positive strains was 61.7% (95%CI: 56.6-66.9). The incidence rate was 3.6/100 person-years (median follow-up: 3 years; 95%CI: 2.1-6.2), lower among the more educated (≥10 vs ≤9: RR = 0.25, 95%CI: 0.06-0.96). The seroreversion rate was 1.0/100 person-years (95%CI: 0.6-1.7). CONCLUSIONS: The prevalence of infection among adults is still very high in Portugal, suggesting that stomach cancer rates will remain high over the next few decades.