Papilomavírus humano de alto risco (HR-HPV) é um fator reconhecido como necessário para o desenvolvimento de câncer cervical. Na última década vários estudos encontraram HR-HPV em OSCC (oral squamous cell carcinoma) e em mucosa oral normal, mas a associação entre HR-HPV e OSCC não é bem conhecida. O objetivo desse estudo foi determinar DNA de HR-HPV na cavidade oral normal de adultos saudáveis. Realizou-se um estudo cross-sectional com amostras da cavidade oral normal de 77 pacientes da Escola de Odontologia da Autonomous University of Yucatan, Merida, Yucatan, México. HR-HPV foi detectado através de Captura Híbrida 2. Uma amostra em 77 (1,2%) foi positiva para HR-PVH e era proveniente de um homem de 50 anos de idade. Concluiu-se que HR-HPV tem baixa prevalência na mucosa oral normal e a Captura Híbrida 2 pode ser um método adequado para estudos epidemiológicos.

High risk human papillomavirus (HR-HPV) are recognized as a necessary factor to development cervical cancer. During the last decade many studies have found HR-HPV in oral squamous cell carcinoma (OSCC) and normal oral mucosa, however the association between HR-HPV and OSCC is still uncertain. The aim of the study was to determine DNA HR-HPV in normal oral cavity of healthy adults. A cross-sectional study was performed; samples from 77 patients with normal oral cavity were collected at the Dentistry school, Autonomous University of Yucatan, Merida, Yucatan, México. HR-HPV was detected by hybrid capture 2. One sample out of 77(1.2%) was positive for HR-PVH. It was from a man of 50 years old. HR-HPV is present in low rate among healthy oral mucosa. Hybrid capture 2 could be a good methodology for large epidemiology studies.

Objetivo: determinar la prevalencia y los genotipos de los papillomavirus humanos (PVH) en mujeres con lesiones escamosas intraepiteliales de bajo grado (LEIBG). Métodos: noventa y seis mujeres de la clínica de colposcopia fueron incluidas. La presencia del ADN de los PVH en las biopsias fue determinada por ensayo de reacción en cadena de la polimerasa (RCP) con oligonucleótidos para el gen L1. Las muestras fueron coamplificadas con MY09/MY11/HMB01 e iniciadores para betaglobina GH20/PC04. Para tipificar se utilizó hibridación reversa en línea. Resultados: el ADN de PVH fue detectado en 28/96 (29,1%) pacientes, de las cuales 21/28 (75%) tuvieron infección con un solo tipo y 7/28 (25%); infección múltiple. En 29/39 (74,3%) fueron de alto riesgo y 10/39 (25,7%) de bajo riesgo. Encontramos 13 diferentes tipos, 9/13 (69,2%) de ellos de alto riesgo. PVH 58 fue el tipo más frecuente. Conclusiones: La prevalencia de VPH en mujeres con diagnóstico citológico de LEIBG fue menor que la esperada; este resultado sugiere una clasificación inadecuada de los diagnósticos.

Objective: to determine the prevalence and types of HPV in women with low-grade squamous intraepithelial lesions (LSIL). Methods: ninety-six women were sequentially enrolled from the colposcopy clinic. The presence of HPV DNA in the biopsies was determined by L1 consensus primer polymerase chain reaction assay. The samples were co-amplified with biotinylated MY09/MY11/HMB01 and GH20/PC04 beta-globin primers. Reverse line blot hybridization was used for typing the samples. Results: HPV DNA was detected in 28/96 (29.1%) patients. From these, 21/28 (75%) had a single HPV infection and 7/28 (25%) had multiple infection; 29/39 (74.3 %) had high-risk subtypes and 10/39 (25.7%) had low-risk. Thirteen different types were found; most of them were high-risk HPV subtypes (9/13, 69.2%). HPV 58 was the most frequently found subtype. Conclusions: the HPV prevalence in women with LSIL was lower than expected; these results suggest a misclassification in the diagnosis.