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1.
Clin J Am Soc Nephrol ; 16(11): 1755-1765, 2021 11.
Article in English | MEDLINE | ID: covidwho-1526737

ABSTRACT

Despite evidence of multiorgan tropism of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in patients with coronavirus disease 2019 (COVID-19), direct viral kidney invasion has been difficult to demonstrate. The question of whether SARS-CoV2 can directly infect the kidney is relevant to the understanding of pathogenesis of AKI and collapsing glomerulopathy in patients with COVID-19. Methodologies to document SARS-CoV-2 infection that have been used include immunohistochemistry, immunofluorescence, RT-PCR, in situ hybridization, and electron microscopy. In our review of studies to date, we found that SARS-CoV-2 in the kidneys of patients with COVID-19 was detected in 18 of 94 (19%) by immunohistochemistry, 71 of 144 (49%) by RT-PCR, and 11 of 84 (13%) by in situ hybridization. In a smaller number of patients with COVID-19 examined by immunofluorescence, SARS-CoV-2 was detected in 10 of 13 (77%). In total, in kidneys from 102 of 235 patients (43%), the presence of SARS-CoV-2 was suggested by at least one of the methods used. Despite these positive findings, caution is needed because many other studies have been negative for SARS-CoV-2 and it should be noted that when detected, it was only in kidneys obtained at autopsy. There is a clear need for studies from kidney biopsies, including those performed at early stages of the COVID-19-associated kidney disease. Development of tests to detect kidney viral infection in urine samples would be more practical as a noninvasive way to evaluate SARS-CoV-2 infection during the evolution of COVID-19-associated kidney disease.


Subject(s)
COVID-19/virology , Kidney Diseases/virology , Kidney/virology , SARS-CoV-2/pathogenicity , Animals , Biopsy , COVID-19/complications , COVID-19/diagnosis , COVID-19/mortality , COVID-19 Testing , Host-Pathogen Interactions , Humans , Kidney Diseases/diagnosis , Kidney Diseases/mortality , Predictive Value of Tests , Prognosis , Risk Assessment , Risk Factors
2.
Clin J Am Soc Nephrol ; 16(11): 1755-1765, 2021 11.
Article in English | MEDLINE | ID: covidwho-1269953

ABSTRACT

Despite evidence of multiorgan tropism of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in patients with coronavirus disease 2019 (COVID-19), direct viral kidney invasion has been difficult to demonstrate. The question of whether SARS-CoV2 can directly infect the kidney is relevant to the understanding of pathogenesis of AKI and collapsing glomerulopathy in patients with COVID-19. Methodologies to document SARS-CoV-2 infection that have been used include immunohistochemistry, immunofluorescence, RT-PCR, in situ hybridization, and electron microscopy. In our review of studies to date, we found that SARS-CoV-2 in the kidneys of patients with COVID-19 was detected in 18 of 94 (19%) by immunohistochemistry, 71 of 144 (49%) by RT-PCR, and 11 of 84 (13%) by in situ hybridization. In a smaller number of patients with COVID-19 examined by immunofluorescence, SARS-CoV-2 was detected in 10 of 13 (77%). In total, in kidneys from 102 of 235 patients (43%), the presence of SARS-CoV-2 was suggested by at least one of the methods used. Despite these positive findings, caution is needed because many other studies have been negative for SARS-CoV-2 and it should be noted that when detected, it was only in kidneys obtained at autopsy. There is a clear need for studies from kidney biopsies, including those performed at early stages of the COVID-19-associated kidney disease. Development of tests to detect kidney viral infection in urine samples would be more practical as a noninvasive way to evaluate SARS-CoV-2 infection during the evolution of COVID-19-associated kidney disease.


Subject(s)
COVID-19/virology , Kidney Diseases/virology , Kidney/virology , SARS-CoV-2/pathogenicity , Animals , Biopsy , COVID-19/complications , COVID-19/diagnosis , COVID-19/mortality , COVID-19 Testing , Host-Pathogen Interactions , Humans , Kidney Diseases/diagnosis , Kidney Diseases/mortality , Predictive Value of Tests , Prognosis , Risk Assessment , Risk Factors
5.
Am J Physiol Lung Cell Mol Physiol ; 318(5): L1027-L1028, 2020 05 01.
Article in English | MEDLINE | ID: covidwho-185314
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