Abstract: Considering the use of de novo or add-on 3TC+ADV bitherapy, we investigated the possibility of the emergence of an HBV strain harboring polymerase mutations conferring resistance to both 3TC (rtL180M+M204V) and ADV (rtN236T).
Abstract: In conclusion, the combination of rtL180M+M204V and rtN236T mutations impairs HBV replication and confers resistance to both 3TC and ADV in vitro.
Abstract: Interferon alfa inhibited equally the replication of wt and L180M+M204V+N236T HBV.
Long-term therapy with adefovir dipivoxil for HBeAg-negative chronic hepatitis B.
PMID: 15987916
2005
The New England journal of medicine
Abstract: Resistance mutations rtN236T and rtA181V were identified in 5.9 percent of patients after 144 weeks.
Chronic hepatitis B--treatment with nucleoside analogues.
PMID: 16108169
2005
The Medical journal of Malaysia
Abstract: Adefovir-resistant mutants (rt N236T) are susceptible to lamivudine and entecavir.
Adefovir-resistant hepatitis B can be associated with viral rebound and hepatic decompensation.
Abstract: RESULTS: Eight male patients with pre-existing lamivudine resistance or breakthrough (mean age 47+/-13 years) were found to have adefovir-resistant mutations rtA181V/T or rtN236T.
Abstract: In the case of rtN236T mutant, loss of two hydrogen bonds accompanied by significant decrease in electrostatic interactions is observed, which explains the observed decrease in drug sensitivity and binding affinity of adefovir diphosphate toward the rtN236T mutant HBV polymerase.
Successful therapy of hepatitis B with tenofovir in HIV-infected patients failing previous adefovir and lamivudine treatment.
Abstract: Surprisingly, adefovir therapy failed, although none of the virus isolates displayed mutations known to be associated with adefovir resistance (A181V, N236T).