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Sex hormones, autoimmunity and gender disparity in COVID-19.

ABSTRACT: The Coronavirus disease 2019 (COVID-19) pandemic has majorly contributed to massive and widespread mortality. Epidemiological data strongly indicates a sex-based disparity in COVID-19 clinical outcomes, with women having lower infection and hospitalisation rates, coupled with better prognosis and lesser mortality. This disparity may be explained by several mechanisms including differences in innate and adaptive immune responses, genetic factors, and an interplay between sex hormones and immune effectors, as well as gender-specific behaviour differences. These pathways, particularly the immunological divergence in response to viral infection, could potentially influence not only COVID-19 pathogenesis and disease course, but also the response to antiviral drugs and vaccines. Furthermore, factors that confer a protective advantage against COVID-19 may be exploited to develop therapeutic strategies to improve clinical outcomes in COVID-19.

SUBMITTER: Raza HA

PROVIDER: S-EPMC8075025 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature

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Sex hormones, autoimmunity and gender disparity in COVID-19.

Raza Hussain Ahmed HA Sen Parikshit P Bhatti Omaima Anis OA Gupta Latika L

Rheumatology international 20210426 8

The Coronavirus disease 2019 (COVID-19) pandemic has majorly contributed to massive and widespread mortality. Epidemiological data strongly indicates a sex-based disparity in COVID-19 clinical outcomes, with women having lower infection and hospitalisation rates, coupled with better prognosis and lesser mortality. This disparity may be explained by several mechanisms including differences in innate and adaptive immune responses, genetic factors, and an interplay between sex hormones and immune e ...[more]

PMID: 33903964

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Project description:AbstractIn patients with coronavirus disease 2019 (COVID-19), men are more severely affected than women. Multiple studies suggest that androgens might play a role in this difference in disease severity. Our objective was to assess the association between sex hormone levels and mortality in patients with severe COVID-19.We selected patients from the Amsterdam University Medical Centers COVID-19 Biobank, in which patients admitted to hospital in March and April 2020, with reverse transcription-polymerase chain reaction proven severe acute respiratory syndrome-coronavirus-2 infection, were prospectively included. Specifically, we included postmenopausal women (>55 years) and age-matched men, with a mortality of 50% in each group. Residual plasma samples were used to measure testosterone, estradiol, sex hormone binding globulin (SHBG), and albumin. We investigated the association of the levels of these hormones with mortality in men and women.We included 16 women and 24 men in March and April 2020 of whom 7 (44%) and 13 (54%), respectively, died. Median age was 69 years (interquartile range [IQR] 64-75). In men, both total and free testosterone was significantly lower in deceased patients (median testosterone 0.8 nmol/L [IQR 0.4-1.9] in deceased patients vs 3.2 nmol/L [IQR 2.1-7.5] in survivors; P < .001, and median free testosterone 33.2 pmol/L [IQR 15.3-52.2] in deceased patients vs 90.3 pmol/L [IQR 49.1-209.7] in survivors; P = .002). SHBG levels were significantly lower in both men and women who died (18.5 nmol/L [IQR 11.3-24.3] in deceased patients vs 34.0 nmol/L [IQR 25.0-48.0] in survivors; P < .001). No difference in estradiol levels was found between deceased and surviving patients.Low SHBG levels were associated with mortality rate in patients with COVID-19, and low total and free testosterone levels were associated with mortality in men. The role of testosterone and SHBG and potential of hormone replacement therapy needs further exploration in COVID-19.

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Sex hormones, autoimmunity and gender disparity in COVID-19.

Publications

Sex hormones, autoimmunity and gender disparity in COVID-19.

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