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Int J Infect Dis . Serum levels of laminin and von Willebrand factor in COVID-19 survivors 6 months after discharge

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  • Int J Infect Dis . Serum levels of laminin and von Willebrand factor in COVID-19 survivors 6 months after discharge


    Int J Infect Dis


    . 2021 Nov 26;S1201-9712(21)00879-1.
    doi: 10.1016/j.ijid.2021.11.032. Online ahead of print.
    Serum levels of laminin and von Willebrand factor in COVID-19 survivors 6 months after discharge


    Hongwei Li 1 , Qian Wu 2 , Zhonghua Qin 3 , Xinwei Hou 1 , Limin Zhang 1 , Jin Guo 1 , Yajie Li 1 , Fangfei Yang 1 , Yan Zhang 1 , Qi Wu 4 , Li Li 5 , Huaiyong Chen 6



    Affiliations

    Abstract

    Objectives: To evaluate clinical characteristics, pulmonary diffusion function, chest computerized tomography (CT), and serum lung cell damage indicators of coronavirus disease 2019 (COVID-19) survivors 6 months after discharge.
    Methods: Data of COVID-19 survivors discharged from hospital between January 21, 2020 and January 11, 2021 and healthy controls were collected. Serum levels of surfactant D (SPD), the receptor for advanced glycation products (RAGE), laminin, and von Willebrand factor (vWF) were measured in healthy controls and COVID-19 survivors 6 months after discharge. The relationships between serum lung cell damage indicator levels and various parameters were explored.
    Results: Fifty-two COVID-19 survivors (31 non-severe and 21 severe) and 30 controls were included. Serum levels of laminin in COVID-19 survivors 6 months after discharge were significantly higher than those in the controls. The increase was more significant in elderly and female patients. Serum levels of RAGE and vWF were not statistically different from those of the controls. However, 6 months after discharge, COVID-19 survivors with abnormal chest CT and those in the severe group had higher vWF levels.
    Conclusions: COVID-19 patients had abnormal lung injury indicators 6 months after discharge. The recovery time after infection is currently unknown, and long-term observations are required.

    Keywords: COVID-19; Chest Computed Tomography; Follow-up; Laminin; von Willebrand factor.

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