標題: | Association of IL28B gene variations with mathematical modeling of viral kinetics in chronic hepatitis C patients with IFN plus ribavirin therapy |
作者: | Hsu, Ching-Sheng Hsu, Shih-Jer Chen, Hung-Chia Tseng, Tai-Chung Liu, Chen-Hua Niu, Wei-Fang Jeng, Jenher Liu, Chun-Jen Lai, Ming-Yang Chen, Pei-Jer Kao, Jia-Horng Chen, Ding-Shinn 數學建模與科學計算所(含中心) Graduate Program of Mathematical Modeling and Scientific Computing, Department of Applied Mathematics |
公開日期: | 1-三月-2011 |
摘要: | Asian patients with chronic hepatitis C (CHC) are known to have better virological responses to pegylated (Peg) IFN-based therapy than Western patients. Although IL28B gene polymorphisms may contribute to this difference, whether favorable hepatitis C virus (HCV) kinetics during treatment plays a role remains unclear. We enrolled 145 consecutive Taiwanese patients with CHC receiving Peg-IFN alpha-2a plus ribavirin for the study. Blood samples were taken more frequently at defined intervals in the first 3 d. Peg-IFN was administered at week 1. It was then administered weekly in combination with daily ribavirin for 24 or 48 wk. A mathematical model fitted to the observed HCV kinetics was constructed, which could interpret the transient HCV titer elevation after Peg-IFN treatment. The results demonstrated a comparable viral clearance rate (c = 3.45 +/- 3.73) (day(-1), mean +/- SD) but lower daily viral production rate (P = 10(6)-10(12)) in our patients than those reported previously in Western patients. Of 110 patients with a sustained virological response (SVR), 47 (43%) had a transient elevation of viral titer within 12 h (proportion of 12 h/3 d: 44% in non-SVR vs. 70% in SVR; P = 0.029). Among 91 patients with available rs8099917 data, patients with the TT genotype had an early surge of viral titer after therapy and a higher SVR and viral clearance rate than those with the GT genotype. In conclusion, Taiwanese patients with CHC receiving Peg-IFN plus ribavirin therapy have a lower daily viral production rate than Western patients, and the rs8099917 TT genotype may contribute to the increased viral clearance rate and better virological responses in these patients. |
URI: | http://dx.doi.org/10.1073/pnas.1100349108 http://hdl.handle.net/11536/9241 |
ISSN: | 0027-8424 |
DOI: | 10.1073/pnas.1100349108 |
期刊: | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
Volume: | 108 |
Issue: | 9 |
起始頁: | 3719 |
結束頁: | 3724 |
顯示於類別: | 期刊論文 |