Abstract:To evaluate the drug-resistance gene mutation of HIV-1 strains in Fujian Province, 226 samples with viral load of HIV-1 in plasma above 1 000 copy/mL were collected from 2008 to 2013. The average of viral load was 1.62×105 copy/mL. Then the whole sequence of gene including the pol gene and the partial reverse transcriptase gene of HIV-1 were amplified by RT-PCR, in which 124 samples were amplified successfully and then the sequences of those amplified ones were edited by the software Conting Express and submitted to the website http//hivdb.stanford.edu./to analyze the drug resistance status. It was found that 92 samples (74.2%) of that strains were classified as CRF_01AE, 14 samples were B, C and BC were 7 samples, respectively. According to the interpretation of Stanford University drug resistance database, 63 of 124 sequences occurred mutations for NRTIs, 74 of 124 sequences occurred mutations for NNRTIs, and 9 of 124 sequences occurred mutations for PIs. The NRTI resistance mutations were M184V, M41L, D67N, L70R, T219F, and K219Q, which caused high or medium level of resistance to TDF, 3TC, D4T and so on. The NNRTI resistance mutations were K101E, Y181C, K103N, and G190A, which caused high or medium level of EFV and NVP. These results showed that the rate of total drug resistance mutation of HIV-1 in Fujian Province was low. But with the increase of the populations using highly active anti-retrovirus therapy and the length of the time during therapy, the mutation may cause high or medium level of drug resistance, so the surveillance for that of HIV-1 is necessary.
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