Data/hora: 02/06/2024 06:55:20

Provedor de dados: 	55	
País: 	Brazil	
Título: 	Assessing subtypes and drug resistance mutations among HIV-1 infected children who failed antiretroviral therapy in Kelantan, Malaysia	
Autores: 	Mohamad,Suharni; Deris,Zakuan Zainy; Yusoff,Nik Khairulddin; Ariffin,Tg Ahmad Akram Tg Mohd; Shueb,Rafidah Hanim.	
Data: 	2012-06-01	
Ano: 	2012	
Palavras-chave: 	HIV-1 subtype; Resistance mutation; Children.	
Resumo: 	Antiretroviral (ARV) therapy has dramatically reduced morbidity and mortality in human immunodeficiency virus 1 (HIV-1) infected children. However, development of ARV resistance in these children is a major public health problem due to lack of availability of and access to new drugs. This study was conducted in order to identify circulating HIV subtypes and recombinant forms and evaluate the drug resistance mutation patterns in 18 HIV-1 infected children failing ARV treatment in Kelantan, Malaysia. Genotyping for codon 1-99 of protease (PR) and 1-250 of reverse transcriptase (RT) were performed by polymerase chain reaction (PCR) amplification and DNA sequencing. Subsequently, these were phylogenetically analyzed to determine the subtypes. CRF33_01B (44.4%) was found to be the predominant HIV subtype, followed by B (27.8%), CRF15_01B (16.7%) and CRF01_AE (11.1%) subtypes. The most prevalent RT mutations were T215F/V/Y (66.7%), D67G/N (55.6%), K219Q/E/R (44.4%), M184V/I (38.9%), K70R/E (27.8%) and M41L (27.8%), associated with nucleoside reverse transcriptase inhibitors (NRTI) resistance; and K103N (55.6%), G190A (33.3%), and K101P/E/H (27.8%) associated with non-nucleoside reverse transcriptase inhibitors (NNRTI) resistance. The results showed a possible emergence of CRF33_01B as current predominant subtypes/circulating recombinant forms (CRFs), and a high frequency of primary mutations among HIV-1 infected children after failure of ARV therapy in Kelantan, Malaysia.	
Tipo: 	Info:eu-repo/semantics/other	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702012000300012	
Editor: 	Brazilian Society of Infectious Diseases	
Relação: 	10.1590/S1413-86702012000300012	
Formato: 	text/html	
Fonte: 	Brazilian Journal of Infectious Diseases  v.16 n.3 2012	
Fonte: 	info:eu-repo/semantics/openAccess