Important note: Information in this article was accurate in 1996. The state of the art may have changed since the publication date.
Human T-cell lymphotropic virus types I and II infections in patients with leukaemia/lymphoma and in subjects with sexually transmitted diseases in Nigeria.
Arch Virol. 1996;141(2):345-55. Unique Identifier : AIDSLINE MED/96195261 Olaleye OD; Ekweozor CC; Li ZL; Opala IE; Sheng Z; Onyemenem TN; Rasheed S; Department of Virology, College of Medicine, University College; Hospital, Ibadan, Nigeria.
Abstract:
Serological assays that distinguish antibodies to human T-cell lymphotropic virus types I (HTLV-I) and type II (HTLV-II), and polymerase chain reaction (PCR) tests were used to investigate association of these two human retroviruses with several well-defined clinical conditions in Nigeria. We compared the frequency of HTLV-I and HTLV-II infections among patients with lymphopholiferative disorders (n=65), individuals with various sexually transmitted diseases (n=40), patients with genitals candidiasis (n=25) and apparently healthy individuals (n=60). Serological analysis of blood samples from all four groups showed that 10 of the 190 (5.3%) individuals tested were confirmed positive for the presence of antibodies to HTLV-I(6) or HTLV-II(4). Using the PCR technique, specific HTLV-I or HTLV-II sequences were amplified from the genomic DNA of 4 of 6 HTLV-I seropositive and 3 of the 4 HTLV-II seropositive individuals respectively. However, sequences of both viruses were amplified from the genomic DNAs of the remaining 3 seropositive individuals. Since one of the 5 sets of primer pairs [SK110(II)/SK111(II)], which is used for specific identification of HTLV-II did not amplify the target sequence from the genomic DNAs of any of the 4 HTLV-II confirmed seropositive individuals in this study, it suggested sequence diversity of these viruses in Nigeria. The virus-infected individuals identified in this study were one (1.5%) of the 65 patients with leukaemia/lymphoma (HTLV-I), 6 of 40 (15.0%) individuals (HTLV-I = 1 , HTLV-II = 3, HTLV-I/II = 2) with sexually transmitted diseases (STD), one of 25(4.0%) subjects with genital candidiasis for HTLV-I and 2 of 60 (33.3%) healthy individuals (one for HTLV-I and one for HTLV-I/II). There was a significant difference (P < 0.025) between the prevalence of HTLV-I/II infections among patients with lymphoma/leukaemia and those who attended STD clinic in Ibadan, Nigeria. This study also suggests that while HTLV-I and HTLV-II may be important sexually transmitted viruses, they may not be specific aetiological agents of the common lymphoproliferative disorders in Nigeria.
Keywords: Adult Base Sequence DNA Primers DNA, Viral/BLOOD/ISOLATION & PURIF Female Human HTLV-I/ISOLATION & PURIF HTLV-I Antibodies/BLOOD HTLV-I Infections/*COMPLICATIONS/DIAGNOSIS/EPIDEMIOLOGY HTLV-II/ISOLATION & PURIF HTLV-II Antibodies/BLOOD HTLV-II Infections/*COMPLICATIONS/DIAGNOSIS/EPIDEMIOLOGY Leukemia/*COMPLICATIONS Lymphoma/*COMPLICATIONS Male Molecular Sequence Data Nigeria/EPIDEMIOLOGY Polymerase Chain Reaction Prevalence Sexually Transmitted Diseases/BLOOD/IMMUNOLOGY/*VIROLOGY Support, Non-U.S. Gov't JOURNAL ARTICLE 960930
M9690848
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