No final de 2019, surgiu em Wuhan, o novo coronavírus 2019, responsável pela doença COVID-19, causador de um quadro clínico múltiplo, variando de sintomas inespecíficos leves à pneumonia grave com danos na função orgânica. Sabendo-se que uma alimentação balanceada pode beneficiar significativamente pacientes no controle de doenças infectocontagiosas crônicas, objetivou-se com este estudo, discutir e apresentar dados recentes sobre o papel das vitaminas A, C, D e E, e os minerais zinco e selênio associados à COVID-19. Trata-se de uma revisão narrativa, sobre os aspectos da pandemia da COVID-19 e dados relacionados às vitaminas e minerais, bem como sua importância nutricional para essa doença. As alterações provocadas pela deficiência das concentrações plasmáticas de vitaminas e minerais, envolvem a redução do bom desempenho do sistema imunológico, sendo um dos fatores que levam ao estado imunitário deficiente. No entanto, são necessários mais estudos para elucidar a relação dos micronutrientes com a infecção causada pelo COVID-19.

The new coronavirus pandemic disease (COVID-19) pandemic was first reported in Wuhan, China, in late 2019, and rapidly spread around the world. Considering its fast transmission rate, the new COVID-19 has become a threat to the public health worldwide. Thus, objective ideas based on scientific evidences must be proposed for the treatment of patients infected. Vitamin D is a hormone with important role in the regulation of the immune system functioning. The main sources of Vitamin D are food intake and synthesis process in the organism which starts in the skin through photoreaction with sun exposure. Then, the pre-Vitamin D is isomerized into pro-Vitamin D. Afterwards, it is metabolized in the liver into 25-hydroxivitamin D, and then converted into in the kidney into its active form, the 1.25-dihydroxivitamin D. Due to its pivotal role in the improvement of the immune response, Vitamin D can positively affect the treatment of several infecto-contagious diseases, such as influenza and H1N1.  This concise review aims to inform about the use of Vitamin D as a possible ally in the treatment of COVID-19. The studies included in this review point out that Vitamin D can perform immunomodulatory and anti-inflammatory functions, which would significantly improve the treatment of viral infections.  Further clinical trials and large populational studies should be carried out in order to better elucidate the effective role of Vitamin D in the treatment of patients with COVID-19.

INTRODUCTION: Studies have shown the importance of hydration in maintaining the physical performance and physiological responses of athletes. Therefore, the objective of this review was to provide data on the impact of hydration on physical performance and physiological responses during sports practice. METHODOLOGY: We performed a search of articles published in selected PubMed and ScienceDirect databases from March 2018 to May 2019 using the keywords “hydration”, “dehydration”, “physical performance”, “thermoregulation”, and “hydroelectrolytic repositors”. RESULTS: The scientific data presented in this review show the importance of hydration in maintaining heart rate, maximum oxygen volume (VO2MAX), and the physical performance of athletes. In addition, our results show that when properly performed, hydrating can help athletes avoid hyponatremia, fatigue, and quitting due to perceived exertion more quickly. CONCLUSION: Proper hydration during exercise helps achieve satisfactory physical performance and prevent health-related problems.

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Background: Curcumin has protective actions in neuropsychiatric disorders. Its mechanism of action is associated with the restoration of catecholaminergic balance, reduction of oxidative/nitrosative stress, protection against inflammation, and neuroprotection. Objective: In a first approach, the study presents an empty review of the potential effect of curcumin on cognitive performance in attention deficit hyperactivity disorder (ADHD).Methods: On a second moment, seeing the scarcity of studies and knowing that ADHD is related to hyperactive and anxious behavior, 20 spontaneously hypertensive Wistar rats (SHR) were divided into groups that received water (1 mg/kg/day), curcumin (50 mg/kg/day), or methylphenidate (1 mg/kg/day) for 42 days. Behavioral tests to assess activity (Open Field test), anxiety and impulsivity (Elevated Plus Maze, and Social Interaction), and memory (Y Maze and Object Recognition Test) were performed. Results: Animals treated with curcumin showed less anxious and hyperactive behavior. Related to the memory, the results can be related to hyperactivity. Conclusion: Thus, the data suggest that the treatments used here can beneficially modulate the anxious and hyperactive behavior of SHR.