title: Nucleometric study of anisonucleosis, diabetes and oxidative damage in liver biopsies of orthotopic liver transplant recipients with chronic hepatitis C virus infection.
abstract: Anisonucleosis is defined as a morphological manifestation of nuclear injury characterized by variation in the size of the cell nuclei. It has been described in variety of benign conditions and is most pronounced in dysplasia and malignancy. To better understand the pathogenesis of anisonucleosis in liver diseases, this study focused on hepatocyte anisonucleosis in biopsies of liver transplant recipients who developed recurrent chronic hepatitis C virus (HCV) infection. Post transplant surveillance liver biopsy specimens were evaluated employing light microscopy, immunohistochemistry, digital image analysis, and nucleometry for histopathological analyses, measurement of nuclear size, and quantification of tissue expression of oxidative marker 8-hydroxy-2'deoxyguanosine (8-OHdG). Our aim in this study was to determine whether there were any independent associations between hepatocyte anisonucleosis and various clinicopathological parameters. These features included patient age, body mass index, gender, race, donor age, live versus cadaveric donor status, history of diabetes mellitus, history of tacrolimus and cyclosporine therapy, duration post transplant and parameters of hepatitis activity index, fibrosis index, steatosis, and oxidative tissue damage in formalin fixed paraffin embedded (FFPE) liver biopsies as determined by immunohistochemistry using 8-OHdG, an indicator of hydroxyl radical mediated tissue damage. Our findings suggested that in liver transplant recipients with recurrent chronic HCV infection, hepatocyte anisonucleosis is more pronounced in individuals with diabetes mellitus (p = 0.0016), and among those who have heightened hepatic expression of the oxidative damage marker 8-OHdG (p = 0.0053). Further studies are necessary to determine whether anisonucleosis is an independent marker for diabetes or oxidative damage.
authors.affiliation: Department of Pathology, College of Medicine, University of Illinois at Chicago, Room 130, 840 South Wood Street, M/C 847, Chicago, IL 60612, USA. GraceGuz@uic.edu
authors.forename: Grace
authors.initials: G
authors.lastname: Guzman
authors.forename: Rohini
authors.initials: R
authors.lastname: Chennuri
authors.forename: Andras
authors.initials: A
authors.lastname: Voros
authors.forename: Redouane
authors.initials: R
authors.lastname: Boumendjel
authors.forename: Alberto
authors.initials: A
authors.lastname: Locante
authors.forename: Roshan
authors.initials: R
authors.lastname: Patel
authors.forename: Tibor
authors.initials: T
authors.lastname: Valyi-Nagy
mesh_terms: D000080242:8-Hydroxy-2'-Deoxyguanosine; D000293:Adolescent; D000328:Adult; D000368:Aged; D001706:Biopsy; D002467:Cell Nucleus / Q000473:pathology*; D003849:Deoxyguanosine / Q000031:analogs & derivatives / Q000378:metabolism; D003920:Diabetes Mellitus; D005260:Female; D019698:Hepatitis C, Chronic / Q000209:etiology / Q000378:metabolism / Q000473:pathology*; D022781:Hepatocytes / Q000378:metabolism / Q000473:pathology*; D006801:Humans; D007090:Image Interpretation, Computer-Assisted; D007150:Immunohistochemistry; D008103:Liver Cirrhosis / Q000150:complications / Q000473:pathology; D016031:Liver Transplantation / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D018384:Oxidative Stress / Q000502:physiology; D055815:Young Adult
chemical_list: D000080242:8-Hydroxy-2'-Deoxyguanosine; D003849:Deoxyguanosine