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COVID-19 can bring several psychological problems to patients and non-patients, which highlights the need for a better understanding of outcomes that can emerge due the occurrence of the virus. One of these variables is fear, present in situations of continuous uncertainty. Fear is a key variable for mental health and tracking it and its correlates might help to develop proper education and prevention programs. Currently, Brazil is one of the epicentres of the COVID-19 pandemic, with its public health system scrapped and not being able to contain the amount of infected people. Therefore, a proper measure to screen the fear of COVID-19 will help to provide improvements in mental health in such contexts. For that, two studies were performed. In Study 1 ( N  = 230) we assessed the factorial structure of the measure through exploratory factor analysis, and item parameters using item response theory. In Study 2 ( N  = 302), we assessed whether the structure would replicate in an independent sample and through confirmatory factor analysis, besides assessing convergent validity using Structural Equation Modelling and proposing a shorter version of the measure. Both long and short versions presented a reliable unidimensional structure and similar patterns of correlations with depression, anxiety, and stress. Overall, our results showed that the FCV-19S and its short version are useful measures to the assessment of fear of COVID-19 in Brazil., Competing Interests: Conflict of InterestThe authors have no conflict of interest to declare., (© The Author(s), under exclusive licence to Springer Science+Business Media, LLC part of Springer Nature 2021.)

This study aimed to analyze the effect of type of breastfeeding on the nutritional status of children between 12-24 months of age. This cohort study included 435 children born in 2012 in a public hospital in Joinville, Santa Catarina State, Brazil. Two years after delivery the mothers and their children were contacted in their homes for a new investigation of demographic, economic, nutritional, and anthropometric data. In the unadjusted analysis, children who were not exclusively breastfed were more likely to be overweight (including obesity) at 2 years of age (OR = 1.6; p = 0.049) than exclusively breastfed children. After adjusting for several covariates, children who were not exclusively breastfed had a 12% higher risk of overweight including obesity compared to unadjusted analysis (OR = 2.6 vs. OR = 1.8; p = 0.043). In addition, birthweight was also an independent determinant of overweight including obesity (OR = 2.5; p = 0.002). The practice of exclusive breastfeeding can reduce the risk of overweight in children from developing countries such as Brazil.

Berardinelli-Seip syndrome (BSS) is a very rare disorder characterized by near-complete absence of adipose tissue from birth or early infancy, hypoleptinemia, hypertriglyceridemia, insulin resistance, diabetes mellitus, and other clinical signals. It is caused by mutations in AGPAT2 or Gng3lg. We evaluated 10 BSS patients and 10 healthy subjects. A single dose of 382.43 μmol zinc was administered intravenously before and after 3 months of oral zinc supplementation. Blood samples were collected from the contralateral arm at 0, 30, 60, 90, and 120 min after zinc injection. Plasma and serum were obtained to measure hematological and biochemical parameters. Urine was collected to measure creatinine, protein, and zinc. Basal serum zinc levels were similar in controls and BSS patients. However, serum zinc profiles were significant reduced in BSS patients in comparison with controls. The change in total-body zinc clearance was more significant in BSS patients, indicating that these patients had suboptimum zinc deficiency., (Copyright © 2011 Elsevier GmbH. All rights reserved.)