Regular exercise training can lead to several health benefits, reduce mortality risk, and increase life expectancy. On the other hand, a sedentary lifestyle is a known risk factor for chronic diseases and increased mortality. Acute kidney injury (AKI) and chronic kidney disease (CKD) represent a significant global health problem, affecting millions of people worldwide. The progression from AKI to CKD is well-recognized in the literature, and exercise training has emerged as a potential renoprotective strategy. Thus, this article aims to review the main molecular mechanisms underlying the renoprotective actions of exercise training in the context of AKI and CKD, focusing on its antioxidative, anti-inflammatory, anti-apoptotic, anti-fibrotic, and autophagy regulatory effects. For that, bibliographical research was carried out in Medline/PubMed and Scielo databases. Although the pathophysiological mechanisms involved in renal diseases are not fully understood, experimental studies demonstrate that oxidative stress, inflammation, apoptosis, and dysregulation of fibrotic and autophagic processes play central roles in the development of tissue damage. Increasing evidence has suggested that exercise can beneficially modulate these mechanisms, potentially becoming a safe and effective non-pharmacological strategy for kidney health protection and promotion. Thus, the evidence base discussed in this review suggests that an adequate training program emerges as a valuable tool for preserving renal function in experimental animals, mainly through the production of antioxidant enzymes, nitric oxide (NO), irisin, IL-10, and IL-11. Future research can continue to explore these mechanisms to develop specific guidelines for the prescription of exercise training in different populations of patients with kidney diseases.
Exercise , Renal Insufficiency, Chronic , Animals , Humans , Acute Kidney Injury/prevention & control , Acute Kidney Injury/metabolism , Acute Kidney Injury/therapy , Antioxidants/metabolism , Apoptosis , Autophagy/physiology , Exercise/physiology , Exercise Therapy/methods , Oxidative Stress , Renal Insufficiency, Chronic/therapy , Renal Insufficiency, Chronic/metabolism
O contexto de pandemia do vírus Sars-Cov-2 contribuiu para a diminuição significativa do contato dos idosos com seus companheiros e familiares, além de desencadear sentimentos de vulnerabilidade e solidão. Além disso, o olhar sensível às subjetividades e demandas individuais deve ser continuamente estimulado durante todo o processo de educação médica, de modo a promover uma formação profissional mais sensível às necessidades do outro. Nesse sentido, a ação intitulada "Cartas aos Idosos" foi criada com o intuito de estabelecer uma comunicação entre idosos e estudantes por meio de cartas com conteúdo de afeto e suporte emocional. A ação "Cartas aos Idosos'', desenvolvida remotamente pela Federação Internacional das Associações de Estudantes de Medicina do Brasil (IFMSA Brazil) da Universidade Federal da Bahia, Campus Anísio Teixeira (UFBA-CAT), entre os meses de agosto e outubro, consistiu na escrita de cartas por estudantes de Medicina, de cunho pessoal, para idosos em situação asilar. O impacto da ação foi medido por meio de uma análise qualitativa dos envolvidos. A atividade foi bem-sucedida no que se refere ao acolhimento e ao amparo dos idosos envolvidos.
Although the coronavirus disease 2019 (COVID-19) pandemic has reached all over the world population, it has demonstrated a heterogeneous impact on different populations. The most vulnerable communities which coexist daily with the social inequalities like low access to hygiene and personal protection products, crowded residences, and higher levels of chronic diseases have a higher risk of contact and the spread of infection, beyond unfavorable clinical outcomes. The elevation of the risk of infection exposure can be related to gender due to the presence of a larger contingent of women in essential services, as well as frontline and cleaning professionals who regardless of gender have the greatest exposure to the virus. Such exposures can contribute to the development of fear of contaminating themselves or their family members associated also with the work stress, both of which are related to the emergence of mental disturbances in these populations. Furthermore, conditions of unsanitary living and low socioeconomic status, populations at war, pre-existing social barriers, and ethnicity have contributed to more impact of the pandemic both in the exposure to the virus and access to health services, COVID-19 management, and management of other pathologies. At the same time, factors such as the closing of non-essential services, the loss of jobs, and the increase in household spending aggravated the social vulnerabilities and impacted the family economy. Lastly, the COVID-19 pandemic contributed still more to the impact on women's health since it propitiated a favorable environment for increasing domestic violence rates, through the segregation of women from social life, and increasing the time of the victims with their aggressors.
Recent research has demonstrated that critically ill patients with coronavirus disease 2019 (COVID-19) show significant immune system dysregulation. Due to that, some nutrients that influence immunomodulation have been suggested as a form of treatment against the infection. This review collected the information on the impact of vitamins on the prognosis of COVID-19, with the intention of facilitating treatment and prevention of the disease risk status in patients. The collected information was obtained using the PubMed electronic database by searching for articles that relate COVID-19 and the mechanisms/effects of the nutrients: Proteins, glucose, lipids, vitamin B12, vitamin D, calcium, iron, copper, zinc, and magnesium, including prospective, retrospective, and support articles. The findings reveal an optimal response related mainly to omega-3, eicosapentaenoic acid, docosahexaenoic acid, calcium, and iron that might represent benefits in the treatment of critically ill patients. However, nutrient supplementation should be done with caution due to the limited availability of randomized controlled studies.
