PMID- 22490797 OWN - NLM STAT- MEDLINE DCOM- 20121231 LR - 20120411 IS - 0376-2491 (Print) IS - 0376-2491 (Linking) VI - 92 IP - 4 DP - 2012 Jan 31 TI - [Prevalence status and mutation pattern of H221Y in subtype B' of HIV-1]. PG - 250-3 AB - OBJECTIVE: To explore the prevalence and mutation pattern of H221Y at reverse transcriptase (RT) among the subtype B' of human immunodeficiency virus1 (HIV-1) in antiviral therapy-failure patients. METHODS: A total of 1363 sequences, comprising of 1205 therapy-failure individuals and 158 therapy-naive individuals, were submitted to the Stanford HIV drug resistance database (SHDB) to analyze the frequency and mutation pattern of H221Y. RESULTS: The prevalence of mutation H221Y in the therapy-failure population was significantly higher than that of the therapy-naive (6.59% vs 0.60%) (chi(2) = 6.59, P = 0.027). The emergence of H221Y usually accompanied the position mutations of T215, M184, K103 and Y181 of RT, and the pattern of TAMs/H221Y/Y181C/I was common. Frequency of H221Y in the regimen of AZT/ddI/NVP was more popular than the other 4 regimens (14.6% vs 3.5%, 4.9%, 2.3%, 2.6%, all P < 0.01). CONCLUSION: With a unique mutation pattern, H221Y has a low prevalence in the individuals of first-line therapy-failure patients. FAU - Li, Han-ping AU - Li HP AD - State Key Laboratory of Pathogen & Biosecurity, Institute of Microbiology & Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China. FAU - Guo, Wei AU - Guo W FAU - Liu, Yong-jian AU - Liu YJ FAU - Bao, Zuo-yi AU - Bao ZY FAU - Li, Lin AU - Li L FAU - Zhuang, Dao-min AU - Zhuang DM FAU - Liu, Si-yang AU - Liu SY FAU - Wang, Xiao-lin AU - Wang XL FAU - Li, Jing-yun AU - Li JY LA - chi PT - English Abstract PT - Journal Article PT - Research Support, U.S. Gov't, Non-P.H.S. PL - China TA - Zhonghua Yi Xue Za Zhi JT - Zhonghua yi xue za zhi JID - 7511141 SB - IM MH - Acquired Immunodeficiency Syndrome/virology MH - Adult MH - Aged MH - Antiretroviral Therapy, Highly Active MH - Drug Resistance, Viral/*genetics MH - Female MH - Genes, Viral/genetics MH - Genotype MH - HIV-1/*genetics/isolation & purification MH - Humans MH - Male MH - Middle Aged MH - *Mutation MH - Young Adult EDAT- 2012/04/12 06:00 MHDA- 2013/01/01 06:00 CRDT- 2012/04/12 06:00 PHST- 2012/04/12 06:00 [entrez] PHST- 2012/04/12 06:00 [pubmed] PHST- 2013/01/01 06:00 [medline] PST - ppublish SO - Zhonghua Yi Xue Za Zhi. 2012 Jan 31;92(4):250-3.