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ACE2 is on the X chromosome: could this explain COVID-19 gender differences?

AuthorsCulebras, Esther; Hernández, Félix
Issue Date24-Jun-2020
PublisherOxford University Press
CitationEuropean Heart Journal ehaa521 (2020)
AbstractThis commentary refers to ‘Circulating plasma concentrations of angiotensin-converting enzyme 2 in men and women with heart failure and effects of renin–angiotensin–aldosterone inhibitors’, by I.E. Sama et al., 2020;41:1810–1817. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and the resulting disease termed coronavirus disease 2019 (COVID-19) shows a fatality rate greater in men compared with women.1 To explain this, some hypotheses have been raised, from genes that regulate the immune system encoded on the X chromosome to smoking behaviour,2 to expression levels1 or variants for angiotensin-converting enzyme 2 (ACE2), the receptor for SARS-CoV-2.3However, we would like to point out that the ACE2 gene is located on the X chromosome (location: Xp22.2; nucleotides 15 494 402–15 602 148, GRCh38.hg38 version). To our knowledge, the importance of ACE2 localization on the X chromosome has not been explored previously. Often, to have two copies ameliorates the deleterious effects of X-linked diseases and, as a consequence, most X-linked syndromes produce male diseases.
Publisher version (URL)https://doi.org/10.1093/eurheartj/ehaa521
Appears in Collections:(CBM) Artículos
(VICYT) Colección Especial COVID-19
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