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Objective To evaluate the efficacy of entecavir treatment up to 96 weeks for patients with chronic hepatitis B (CHB).Methods The study recruited 62 CHB patients who were admitted to or hospitalized at the Taixing People′s Hospital from July 201 1 to July 2014. The patients were treated with entecavir (0.5 mg/d)for 96 weeks of antiviral therapy.All the patients were divided into HBeAg-positive (n=43)and HBeAg-negative groups (n=19).The HBV DNA load was higher than 106 copies/ml in 38 patients and lower than 106 cop-ies/ml in 24 patients.The efficacy of entecavir in the two groups was compared at 24,48,and 96 weeks of treatment.Between-group com-parison of categorical data was performed byχ2 test.Results At 24,48,and 96 weeks of treatment,the HBeAg-positive group had a sig-nificantly lower HBV DNA clearance rate than the HBeAg -negative group (34.88% vs 78.95%,P=0.003;65.12% vs 89.47%, P=0.047;74.42% vs 100%,P=0.038);there was no significant difference in alanine aminotransferase (ALT)normalization rate be-tween the two groups (P=0.102,0.779,and 0.638).Patients with a HBV DNA load of >106 copies/ml had a significantly lower HBV DNA clearance rate than those with a HBV DNA load of <106 copies/ml at 24,48,and 96 weeks of treatment (34.21% vs 70.83%, P=0.005;57.89% vs 95.83%,P=0.001;76.32%vs 95.83%,P=0.002);there was no significant difference in ALT normalization rate between the two groups (P=0.940,0.150,and 0.280).Conclusion Entecavir has a high antiviral activity in the treatment of CHB, which can suppress HBV replication and concurrently improve liver function.
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BACKGROUND: Previous studies demonstrated that eucommia bark can promote bone marrow stern cells (BMSCs) differentiated into osteoblasts, but relative mechanism is poorly understood. OBJECTIVE: To investigate the effects of eucommia bark water/methanol extracts on expressions of osteopontin (OPN) and osteoprotegedn (OPG) in rat BMSCs. METHODS: Totally 2 g eucommia bark powder were added into water or methanol to 16 mL and oscillated for 1 hour at room temperature. After soaked overnight, both extracts were centrifuged at 15 000 r/min for 10 minutes. Water extract was obtained from supernatant in water soaked powder. In methanol soaked powder, methanol extracts was obtained by concentrated supernatant in vacuo and resolved using 16 mL water. Water and methanol extracts were then filtered by 0.22 μm membrane, and conserved at -20℃. Six SD rats, aged 2 months, were selected, and the 3~(rd)passage of BMSCs were induced by water or methanol extracts with dilution of 1 × 10~(-2), 1 × 10~(-3), 1 × 10~(-4) and 1 × 10~(-5), respectively. PBS was added in the negative control group. All cells were cultured for 6 days. Expressions of OPN and OPG was measured by immunocytochemistry at 6 days with induction. The expression of OPN and OPG induced by water and methanol at 1 ×10~(-3) and 1×10~(-4) dilution was detected by RT-PCR. RESULTS AND CONCLUSION: Immunocytochemistrical results indicated that both water and methanol extracts of eucommia bark simulated OPN and OPG expression, in particular with dilution of 1×10~(-4). The methanol extracts had a stronger effect than water extract, but the expression of OPG did not change obviously. RT-PCR demonstrated that at the 3rd day of inducement, the level of OPN expression induced by water extract was higher than that of methanol extract, and no OPG expression was detected. Osteogenic differentiation of rat MSCs induced by eucommia bark water/methanol extracts relates to stimulating expression of OPN, which has no correlation to OPG. OPN expression induced by water extract is early than that of methanol extract.