An increase in the circulation of HIV-1 non-B subtypes has been observed in recent years in Western European countries. Due to the lack of data on the circulation of HIV-1 non-B subtypes among European HIV-1-infected men who have sex with men (MSM), a biomolecular study was conducted in Rome, Italy. HIV-1 partial pol gene sequences from 111 MSM individuals (76 drug naive and 35 drug experienced) were collected during the years 2004-2006. All these sequences were analyzed using the REGA HIV-1 Subtyping Tool, and aligned using CLUSTAL X followed by manual editing using the Bioedit software. A BLAST search for non-B subtype sequences was also performed. Twenty-six (23.4%) MSM were not Italians. Eight individuals (7.2%) were diagnosed as HIV infected before 1991, 20 (18.0%) between 1991 and 1999, and 83 (74.8%) from 2000 to 2006. Fifteen (15/111, 13.5%) individuals were infected with the non-B subtype. The percentage of infection with HIV-1 non-B subtypes was 8.2% (7/85) among Italian MSM and 30.8% (8/26) among the non-Italians (OR = 4.95 95% IC: 1.40-17.87). Individuals infected with the non-B subtype were significantly younger than those infected with the HIV-1 B subtype (28 years vs. 34 years, p = 0.003). The CRFs were more prevalent (8.1%) than pure subtypes (5.4%), which were distributed as follows: subtype C (2.6%), subtype A1 (1.7%), and subtype F1 (0.9%). Major mutations conferring resistance to antiretroviral drugs (ARV) were not found among HIV-1 non-B subtype drug-naive patients but were found in two ARV-experienced individuals. The data show that viral diversity is likely increasing in a population group that had been previously characterized by the circulation of HIV-1 subtype B. © Copyright 2009, Mary Ann Liebert, Inc.

Giuliani, M., Montieri, S., Palamara, G., Latini, A., Alteri, C., Perno, C.f., et al. (2009). Non-B HIV type 1 subtypes among men who have sex with men in Rome, Italy. AIDS RESEARCH AND HUMAN RETROVIRUSES, 25(2), 157-164 [10.1089/aid.2008.0175].

Non-B HIV type 1 subtypes among men who have sex with men in Rome, Italy

PERNO, CARLO FEDERICO;SANTORO, MARIA;
2009-02-24

Abstract

An increase in the circulation of HIV-1 non-B subtypes has been observed in recent years in Western European countries. Due to the lack of data on the circulation of HIV-1 non-B subtypes among European HIV-1-infected men who have sex with men (MSM), a biomolecular study was conducted in Rome, Italy. HIV-1 partial pol gene sequences from 111 MSM individuals (76 drug naive and 35 drug experienced) were collected during the years 2004-2006. All these sequences were analyzed using the REGA HIV-1 Subtyping Tool, and aligned using CLUSTAL X followed by manual editing using the Bioedit software. A BLAST search for non-B subtype sequences was also performed. Twenty-six (23.4%) MSM were not Italians. Eight individuals (7.2%) were diagnosed as HIV infected before 1991, 20 (18.0%) between 1991 and 1999, and 83 (74.8%) from 2000 to 2006. Fifteen (15/111, 13.5%) individuals were infected with the non-B subtype. The percentage of infection with HIV-1 non-B subtypes was 8.2% (7/85) among Italian MSM and 30.8% (8/26) among the non-Italians (OR = 4.95 95% IC: 1.40-17.87). Individuals infected with the non-B subtype were significantly younger than those infected with the HIV-1 B subtype (28 years vs. 34 years, p = 0.003). The CRFs were more prevalent (8.1%) than pure subtypes (5.4%), which were distributed as follows: subtype C (2.6%), subtype A1 (1.7%), and subtype F1 (0.9%). Major mutations conferring resistance to antiretroviral drugs (ARV) were not found among HIV-1 non-B subtype drug-naive patients but were found in two ARV-experienced individuals. The data show that viral diversity is likely increasing in a population group that had been previously characterized by the circulation of HIV-1 subtype B. © Copyright 2009, Mary Ann Liebert, Inc.
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore MED/07 - Microbiologia e Microbiologia Clinica
English
Con Impact Factor ISI
antiretrovirus agent; RNA directed DNA polymerase inhibitor; adult; antiviral resistance; article; computer program; gene mutation; gene sequence; human; Human immunodeficiency virus 1; Human immunodeficiency virus 1 infection; Italy; major clinical study; male; male homosexual; nucleotide sequence; priority journal; structural gene; Adult; Cluster Analysis; Epidemiology, Molecular; Genotype; HIV Infections; HIV-1; Homosexuality; Humans; Male; Molecular Sequence Data; pol Gene Products, Human Immunodeficiency Virus; Prevalence; Rome; Sequence Analysis, DNA; Sequence Homology; Young Adult
Giuliani, M., Montieri, S., Palamara, G., Latini, A., Alteri, C., Perno, C.f., et al. (2009). Non-B HIV type 1 subtypes among men who have sex with men in Rome, Italy. AIDS RESEARCH AND HUMAN RETROVIRUSES, 25(2), 157-164 [10.1089/aid.2008.0175].
Giuliani, M; Montieri, S; Palamara, G; Latini, A; Alteri, C; Perno, Cf; Santoro, M; Rezza, G; Ciccozzi, M
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/39180
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