Detection of YMDD mutation during lamivudine therapy by real time fluorimetry PCR / 中华检验医学杂志

ABSTRACT

Objective Setting up a method to detect YMDD mutation during lamivudine therapy. Methods Two specific fluorescent probes were designed, on the unpaired base can remarkably affect melting temperature when oligonucleotide probe binding to DNA template. 297 patients (354 sera samples) were detected YMDD mutation by real time fluorimetry PCR. Results 156 YMDD mutation were found in 354 sera samples (44.1%), in which the mixed variant species were 34%(53/156). In the same time, nine sera samples wre sequenced. The results of sequencing were fully corresponded to those of fluorimetry PCR. The statistical analysis showed that YMDD variants were obviously correlated with ALT level(P