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https://www.selleckchem.com/products/nms-p937-nms1286937.html Ultrastructural examination identified typical coronavirus particles characterized by spike structure in cytoplasm of hepatocytes in two COVID-19 cases. SARS-CoV-2 infected hepatocytes displayed conspicuous mitochondrial swelling, endoplasmic reticulum dilatation, and glycogen granule decrease. Histologically, massive hepatic apoptosis and a certain binuclear hepatocytes were observed. Taken together, both ultrastructural and histological evidence indicated a typical lesion of viral infection. Immunohistochemical results showed scanty CD4+ and CD8+ lymphocytes. No obvious eosinophil infiltration, cholestasis, fibrin deposition, granuloma, massive central necrosis, or interface hepatitis were observed. Conclusions SARS-CoV-2 infection in liver is a crucial cause of hepatic impairment in COVID-19 patients. Hence, a surveillance of viral clearance in liver and long outcome of COVID-19 is required.Background Gallbladder cancer (GBC) has a female predominance, although other biliary tract cancers (BTCs) such as extrahepatic and intrahepatic bile duct (EHBDC and IHBDC) and ampulla of Vater (AVC) have a male predominance. The role of female reproductive factors in BTC etiology remains unclear. Methods We pooled data from 19 studies of >1.5 million women participating in the Biliary Tract Cancers Pooling Project to examine the associations of parity, age at menarche, reproductive years, and age at menopause with BTC. Associations for age at menarche and reproductive years with BTC were analyzed separately for Asian and non-Asian women. Hazard ratios (HRs) and 95% CIs were estimated using Cox proportional hazards models, stratified by study. Results During 21,681,798 person-years of follow-up, 875 GBC, 379 IHBDC, 450 EHBDC, and 261 AVC cases occurred. High parity was associated with risk of GBC (HR ≥5 vs. 0 births 1.72, 95% CI 1.25, 2.38). Age at menarche (HR per year increase 1.15, 95% CI 1.06, 1.24) was associat

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