本文旨在探討維生素D(Vitamin D, VD)對於新冠肺炎(Coronavirus disease 2019, COVID-19)的效益,特別是闡述VD可降低COVID-19感染的風險、病症嚴重程度及其他併發症等。VD可經由多種機制以降低急性呼吸道感染和COVID-19的風險,例如降低病毒的複製、減少促發炎細胞因子的生成、調控腎素-血管收縮素系統(Renin-angiotensin system, RAS)、平衡血管收縮素轉換酶(Angiotensin-converting enzyme, ACE)和血管收縮素轉換酶2(Angiotensin-converting enzyme 2, ACE2)、保持細胞間隙的完整性等。雖已有研究指出,補充VD可以預防或緩解COVID-19病症,但仍需更多隨機對照研究來證實它的效益性。
This review article aims to evaluate the effects of vitamin D (VD) on Coronavirus disease 2019 (COVID-19), especially, to analyze its potential roles in mitigating the infection risk and disease severity of COVID-19, and its complications. Proposed mechanisms of VD include decrease in replication of viruses, reduction in production of inflammatory cytokines, regulation of renin-angiotensin system (RAS), balance between angiotensin-converting enzyme (ACE) and angiotensin-converting enzyme 2 (ACE2), and maintenance of cell-cell junction integrity. There are several studies suggesting that VD supplementation may be effective in the prevention or treatment of COVID-19. However, the clinical consensus on the effects of VD supplementation for COVID-19 still needs more support from the randomized controlled trials.