Tryptophan metabolism change in patients with chronic hepatitis B and hepatitis B cirrhosis and its correlation analysis / 重庆医学

ABSTRACT

Objective To investigate the tryptophan (Trp) metabolism change in the patients with chronic hepatitis B (CHB) and hepatitis B cirrhosis (HBC) and to analyze the related risk .Methods Eighty-one cases of CHB and 40 cases of HBC hospitalized in the First Affiliated Hospital of Chongqing Medical University from October 2015 to January 2016 served as the stud-y subjects ,and 40 healthy persons as the controls .High performance liquid chromatography -fluorescence detection (HPLC-FD) were adopted to detect the levels of plasma Trp ,kynurenine (Kyp) and its metabolite 5-hydroxy tryptamine (5-HT) .HBV-DNA vi-ral replication number was detected by real-time quantitative PCR .The serological indicators differences among 3 groups were ana-lyzed .The risk factors were analyzed and screened by the Logistic regression analysis and Pearson correlation analysis .Results Compared with the control group ,plasma 5-HT and Trp levels in the CHB group and HBC group were significantly decreased (P<0 .01);plasma Kyn/Trp in the HBC group was significantly higher than that in the other two groups (P<0 .01) .Kyn/Trp in the HBC group was negatively correlated with A/G (r= -0 .686 ,P<0 .01) ,and Kyn/Trp in the CHB group was positively correlated with Log DNA (r= 0 .784 ,P<0 .01) .The Logistic regression analysis indicated that Kyn/Trp was the risk factor of CHB and HBC .Conclusion Detecting plasma Trp and its metabolite can serve as the adjuvant indicators for assessing the progression of hep-atitis B .