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HUMAN PAPILLOMAVIRUS TYPES DISTRIBUTION AMONG WOMEN WITH CERVICAL PRENEOPLASTIC, LESIONS AND CANCER IN LUANDA, ANGOLA
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Instituto Superior. Hospital MIlitar Prncipal. Departamento de Anatomia Patológica. Luanda, Angola.
Fundação Oswaldo Cruz, Instituto Oswaldo Cruz. Rio de Janeiro, RJ, Brasil / Instituto Nacional de Câncer. Divisão de Genética. Rio de Janeiro, RJ, Brasil.
Instituto Nacional de Câncer. Divisão de Genética. Rio de Janeiro, RJ, Brasil.
Instituto Superior. Hospital MIlitar Prncipal. Departamento de Anatomia Patológica. Luanda, Angola.
Instituto Superior. Hospital MIlitar Prncipal. Departamento de Anatomia Patológica. Luanda, Angola.
Instituto Superior. Hospital MIlitar Prncipal. Departamento de Anatomia Patológica. Luanda, Angola.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório Interdisciplinar de Pesquisa Médica. Rio de Janeiro, RJ. Brasil.
Fundação Oswaldo Cruz, Instituto Oswaldo Cruz. Rio de Janeiro, RJ, Brasil / Instituto Nacional de Câncer. Divisão de Genética. Rio de Janeiro, RJ, Brasil.
Instituto Nacional de Câncer. Divisão de Genética. Rio de Janeiro, RJ, Brasil.
Instituto Superior. Hospital MIlitar Prncipal. Departamento de Anatomia Patológica. Luanda, Angola.
Instituto Superior. Hospital MIlitar Prncipal. Departamento de Anatomia Patológica. Luanda, Angola.
Instituto Superior. Hospital MIlitar Prncipal. Departamento de Anatomia Patológica. Luanda, Angola.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório Interdisciplinar de Pesquisa Médica. Rio de Janeiro, RJ. Brasil.
Abstract
Introduction: Cervical cancer is the leading cause of cancer deaths among females in Angola and human papillomavirus (HPV) is the main risk
factor for the development of pre-cancerous squamous intraepithelial lesions. The diversity and frequency of HPV types in Angola has yet to be
reported. Aim: To determine the frequency of HPV among women with squamous intraepithelial lesions from women in Luanda, Angola.
Methods: Study participants included women diagnosed with cytological abnormalities that voluntarily provided Pap smears (n = 64). Genomic
DNA was extracted from the samples for use as templates in the PCR amplification of HPV sequences. PCR products were sequenced to determine
HPV type. Results: HPV DNA was detected in 71.9% (46/64) in the samples. A higher diversity of HPV types was found in the cytological lesions,
such as ASCUS and LSIL (HPV16, 6, 18, 31, 58, 66, 70 and 82, in order of frequency) than that detected for HSIL and SSC (HPV16, 18, 6 and 33).
The most prevalent HPV type were: HPV16, HPV6 and HPV18. Conclusion: This is the first report on HPV type diversity and frequency in woman
of Angola. The results suggest that large-scale studies across Africa would improve our understanding of interrelationship between HPV infections
and cervical cancer. More directly, the identification of the HPV types most prevalent suggests that women in Angola would benefit from currently
available HPV vaccines.
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