The U-shaped association of serum iron level with disease severity in adult hospitalized patients with COVID-19

Abstract Coronavirus disease 2019 (COVID-19) is an emerging infectious disease that leads to severe respiratory failure (RF). It is known that host exposure to viral infection triggers an iron-lowering response to mitigate pathogenic load and tissue damage. However, the association between host iron...

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Autores principales: Kentaro Tojo, Yoh Sugawara, Yasufumi Oi, Fumihiro Ogawa, Takuma Higurashi, Yukihiro Yoshimura, Nobuyuki Miyata, Hajime Hayami, Yoshikazu Yamaguchi, Yoko Ishikawa, Ichiro Takeuchi, Natsuo Tachikawa, Takahisa Goto
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Publicado: Nature Portfolio 2021
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spelling oai:doaj.org-article:6ade467b256d48199ffaecfa218cbc532021-12-02T14:33:58ZThe U-shaped association of serum iron level with disease severity in adult hospitalized patients with COVID-1910.1038/s41598-021-92921-62045-2322https://doaj.org/article/6ade467b256d48199ffaecfa218cbc532021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-92921-6https://doaj.org/toc/2045-2322Abstract Coronavirus disease 2019 (COVID-19) is an emerging infectious disease that leads to severe respiratory failure (RF). It is known that host exposure to viral infection triggers an iron-lowering response to mitigate pathogenic load and tissue damage. However, the association between host iron-lowering response and COVID-19 severity is not clear. This two-center observational study of 136 adult hospitalized COVID-19 patients analyzed the association between disease severity and initial serum iron, total iron-binding capacity (TIBC), and transferrin saturation (TSAT) levels. Serum iron levels were significantly lower in patients with mild RF than in the non-RF group; however, there were no significant differences in iron levels between the non-RF and severe RF groups, depicting a U-shaped association between serum iron levels and disease severity. TIBC levels decreased significantly with increasing severity; consequently, TSAT was significantly higher in patients with severe RF than in other patients. Multivariate analysis including only patients with RF adjusted for age and sex demonstrated that higher serum iron and TSAT levels were independently associated with the development of severe RF, indicating that inadequate response to lower serum iron might be an exacerbating factor for COVID-19.Kentaro TojoYoh SugawaraYasufumi OiFumihiro OgawaTakuma HigurashiYukihiro YoshimuraNobuyuki MiyataHajime HayamiYoshikazu YamaguchiYoko IshikawaIchiro TakeuchiNatsuo TachikawaTakahisa GotoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Kentaro Tojo
Yoh Sugawara
Yasufumi Oi
Fumihiro Ogawa
Takuma Higurashi
Yukihiro Yoshimura
Nobuyuki Miyata
Hajime Hayami
Yoshikazu Yamaguchi
Yoko Ishikawa
Ichiro Takeuchi
Natsuo Tachikawa
Takahisa Goto
The U-shaped association of serum iron level with disease severity in adult hospitalized patients with COVID-19
description Abstract Coronavirus disease 2019 (COVID-19) is an emerging infectious disease that leads to severe respiratory failure (RF). It is known that host exposure to viral infection triggers an iron-lowering response to mitigate pathogenic load and tissue damage. However, the association between host iron-lowering response and COVID-19 severity is not clear. This two-center observational study of 136 adult hospitalized COVID-19 patients analyzed the association between disease severity and initial serum iron, total iron-binding capacity (TIBC), and transferrin saturation (TSAT) levels. Serum iron levels were significantly lower in patients with mild RF than in the non-RF group; however, there were no significant differences in iron levels between the non-RF and severe RF groups, depicting a U-shaped association between serum iron levels and disease severity. TIBC levels decreased significantly with increasing severity; consequently, TSAT was significantly higher in patients with severe RF than in other patients. Multivariate analysis including only patients with RF adjusted for age and sex demonstrated that higher serum iron and TSAT levels were independently associated with the development of severe RF, indicating that inadequate response to lower serum iron might be an exacerbating factor for COVID-19.
format article
author Kentaro Tojo
Yoh Sugawara
Yasufumi Oi
Fumihiro Ogawa
Takuma Higurashi
Yukihiro Yoshimura
Nobuyuki Miyata
Hajime Hayami
Yoshikazu Yamaguchi
Yoko Ishikawa
Ichiro Takeuchi
Natsuo Tachikawa
Takahisa Goto
author_facet Kentaro Tojo
Yoh Sugawara
Yasufumi Oi
Fumihiro Ogawa
Takuma Higurashi
Yukihiro Yoshimura
Nobuyuki Miyata
Hajime Hayami
Yoshikazu Yamaguchi
Yoko Ishikawa
Ichiro Takeuchi
Natsuo Tachikawa
Takahisa Goto
author_sort Kentaro Tojo
title The U-shaped association of serum iron level with disease severity in adult hospitalized patients with COVID-19
title_short The U-shaped association of serum iron level with disease severity in adult hospitalized patients with COVID-19
title_full The U-shaped association of serum iron level with disease severity in adult hospitalized patients with COVID-19
title_fullStr The U-shaped association of serum iron level with disease severity in adult hospitalized patients with COVID-19
title_full_unstemmed The U-shaped association of serum iron level with disease severity in adult hospitalized patients with COVID-19
title_sort u-shaped association of serum iron level with disease severity in adult hospitalized patients with covid-19
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/6ade467b256d48199ffaecfa218cbc53
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