Glucose Homeostasis Is Dysregulated in Ducks Infected with Duck Hepatitis B Virus

Author:

Tan Yanlian,Liu Jianxiang,Qin Yingjian,Liang Bin,Gu Yunyan,Liang Lilan,Liu Lili,Liu Yongming,Su Heling

Abstract

<b><i>Introduction:</i></b> The association between hepatitis B virus (HBV) infection and the development of diabetes remains controversial. This study examined the effect of HBV infection on glucose homeostasis using a duck HBV (DHBV) model. <b><i>Methods:</i></b> Plasma DHBV DNA was detected by quantitative polymerase chain reaction (PCR). Tissue infection of DHBV was determined by detecting DHBV covalently closed circular DNA (cccDNA) with a method of rolling circle amplification combined with cross-gap PCR, and verified by fluorescence in situ hybridization assay. An intravenous injection glucose tolerance test (GTT) was used to analyze the effect of DHBV infection on glucose tolerance. <b><i>Results:</i></b> Of the finally included 97 domestic ducks, 53 (54.6%) were congenitally infected by DHBV. The positive rate of DHBV cccDNA in the liver, kidney, pancreas, and skeletal muscle of the infected ducks was 100, 75.5, 67.9, and 47.2%, respectively. The DHBV-infected ducks had higher blood glucose levels at 15 and 30 min post-load glucose (<i>p</i> &#x3c; 0.01 and <i>p</i> &#x3c; 0.001, respectively) in the GTT, much more individuals with greater glucose area under curve (<i>p</i> &#x3c; 0.01), and a 57% impaired glucose tolerance (IGT) rate, as compared with noninfected controls. In addition, the subgroups of the infected ducks with DHBV cccDNA positive in skeletal muscle maintained the higher blood glucose level up to 2 h post-load glucose during the GTT and had a 76% IGT rate. <b><i>Conclusion:</i></b> These results suggest that DHBV intrahepatic and extrahepatic infection impairs glucose tolerance, and thus evidence the association of DHBV infection with the dysregulation of glucose metabolism.

Publisher

S. Karger AG

Subject

Infectious Diseases,Virology

Reference24 articles.

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