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SARS-CoV-2 in the pancreas and the impaired islet function in COVID-19 patients #MMPMID35343389
Ji N; Zhang M; Ren L; Wang Y; Hu B; Xiang J; Gong Y; Wu C; Qu G; Ding W; Yin Z; Li S; Wang Z; Zhou L; Chen X; Ma Y; Tang J; Liu Y; Liu L; Huang M
Emerg Microbes Infect 2022[Dec]; 11 (1): 1115-1125 PMID35343389show ga
Diabetes mellitus (DM) is one of the most common underlying diseases that may aggravates COVID-19. In the present study, we explored islet function, the presence of SARS-CoV-2 and pathological changes in the pancreas of patients with COVID-19. Oral glucose tolerance tests (OGTTs) and the C-peptide release test demonstrated a decrease in glucose-stimulated C-peptide secretory capacity and an increase in HbA1c levels in patients with COVID-19. The prediabetic conditions appeared to be more significant in the severe group than in the moderate group. SARS-CoV-2 receptors (ACE2, CD147, TMPRSS2 and neuropilin-1) were expressed in pancreatic tissue. In addition to SARS-CoV-2 virus spike protein and virus RNA, coronavirus-like particles were present in the autophagolysosomes of pancreatic acinar cells of a patient with COVID-19. Furthermore, the expression and distribution of various proteins in pancreatic islets of patients with COVID-19 were altered. These data suggest that SARS-CoV-2 in the pancreas may directly or indirectly impair islet function.