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Rev. Inst. Med. Trop. Säo Paulo ; 54(1): 11-16, Jan.-Feb. 2012. graf, tab
Article in English | LILACS | ID: lil-614890

ABSTRACT

Human papillomavirus (HPV) can induce a wide spectrum of squamous intraepithelial lesions (SIL) of varying severity. The aim of the present study was to establish the frequency of HPV infection and identify the genotypes circulating in women from Córdoba, Argentina, in relation to age and cytology. A total of 186 women, between 18 and 65 years old, with antecedents of SIL, underwent a pelvic examination and had cervical cells collected for cytology and HPV DNA detection. Ninety-six samples (51.6 percent) were positive for HPV detection, and sixty-three (65.6 percent) of them showed the presence of at least one HR-HPV. Low- and high-grade SIL showed significant association in patients younger than 35 years of age. We found 18 different genotypes, with a greater presence of HR-HPV. Genotypes 16 and 6 were the most frequent. Seven (7.3 percent) multiple infections, 85.7 percent of which had at least one HR-HPV, were detected. The detection of a large number of different HPV genotypes is a warning sign. It is thus necessary to strengthen the monitoring of the circulation of high-risk genotypes, currently less prevalent in intraepithelial lesions, as a control measure for the possible impact of the implementation of vaccines against genotypes 16 and 18.


El papilomavirus humano (human papilloma, HPV) induce un amplio espectro de lesiones intraepiteliales escamosas (SIL) de variada severidad. Objetivo: conocer la frecuencia de infección por HPV y determinar los genotipos circulantes en mujeres de la ciudad de Córdoba, Argentina, en relación con la edad y la citología. Se realizó citología y detección de ADN-HPV en células cervicales de 186 mujeres de 18 a 65 años con antecedentes de SIL. Noventa y seis (51.6 por ciento) fueron positivas para la detección del HPV, de las cuales, en 63 (65.6 por ciento) se detectó la presencia de al menos, un HPV de Alto Riesgo (HR-HPV). Las SIL de alto grado (HSIL) y de bajo grado (LSIL) se asociaron a pacientes menores de 35 años. Se hallaron 18 genotipos diferentes, con mayor presencia de HR-HPV. HPV 16 y 6 fueron más frecuentes y se detectaron 7 (7.3 por ciento) infecciones múltiples, 85.7 por ciento de éstas presentaron al menos un HR-HPV. La detección de un alto número de diferentes genotipos es una señal de alerta. Por tanto, es necesario fortalecer la vigilancia de los HR-HPV, actualmente menos frecuentes en las SIL, como medida de control del impacto que tendrá la implementación de las vacunas contra HPV 16 y 18.


Subject(s)
Adolescent , Adult , Aged , Female , Humans , Middle Aged , Young Adult , Uterine Cervical Dysplasia/virology , Papillomaviridae/isolation & purification , Papillomavirus Infections/virology , Uterine Cervical Dysplasia/virology , Uterine Cervical Neoplasms/virology , Argentina/epidemiology , Uterine Cervical Dysplasia/epidemiology , DNA, Viral/analysis , Genotype , Papillomaviridae/genetics , Papillomavirus Infections/epidemiology , Uterine Cervical Dysplasia/epidemiology , Uterine Cervical Neoplasms/epidemiology , Vaginal Smears
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