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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

DETECÇÃO E GENOTIPAGEM DE HPV EM CARCINOMAS DE VULVA E DE VAGINA.

Fonseca, Tatiane Ribeiro da 26 June 2014 (has links)
Made available in DSpace on 2016-08-10T10:38:52Z (GMT). No. of bitstreams: 1 Tatiane Ribeiro da Fonseca.pdf: 3044117 bytes, checksum: d604b5b291d33d0e053ad75336e7a264 (MD5) Previous issue date: 2014-06-26 / This study evaluated the sociodemographic and clinicopathological aspects of patients with cancer of the vulva and the vagina diagnosed in Araújo Jorge Hospital, Goiânia - GO as well as the prevalence of HPV and HPV16 and 18 genotypes in these tumors. The sample consisted of paraffin embedded samples from 57 patients with primary invasive vulvar cancer and 20 patients with primary invasive cancer of the vagina. The HPV detection was made by polymerase chain reaction (PCR) with SPF (short PCR fragment) 1-2 primers and the HPV 16 and 18 genotyping was performed with primers designed to detect these two genotypes. The results were analyzed by Fisher s exact test. The prevalence of HPV in vulvar cancer samples was 89%. The HPV16 genotype was detected in 42% of positive cases and HPV18 in 24%. The HPV prevalence in vaginal cancer samples was 90%. Among these, 56% were infections by HPV16 and HPV18 by 18%. Over 70% of patients with vulvar and vaginal cancer and positive for HPV detection were over 50 years. Statistical analyzes of the data showed significance of smoking for cancer of the vulva (p = 0.0110). A relationship between lymph node metastasis and cancer of the vulva was also observed (p = 0.0304). A better prognosis for patients with vaginal cancer HPV positive was found (p = 0.0158). A relationship between the degree of tumor differentiation and the presence of HPV in patients with cancer of the vulva was suggested (p = 0.0541). Based on the results presented, it is estimated that the HPV vaccine could have prevented 58% of cases of vulvar cancer and 65% of cases of vaginal cancer of the sample investigated. / O presente estudo avaliou os aspectos sociodemográficos e clinicopatológicos de pacientes com câncer de vulva e vagina diagnosticadas no Hospital Araújo Jorge, Goiânia-GO, bem como a prevalência do HPV e dos genótipos do HPV16 e 18 nesses tumores. A casuística consistiu de amostras parafinizadas de 57 pacientes com câncer invasor primário de vulva e 20 pacientes com câncer invasor primário de vagina. A detecção do HPV foi feita por meio de reação em cadeia da polimerase (PCR) com oligonucleotídeos iniciadores SPF (do inglês short PCR fragment) 1-2 e a genotipagem do HPV16 e 18 foi realizada com oligonucleotídeos iniciadores projetados para a detecção desses dois genótipos. Os resultados foram analisados por Teste Exato de Fisher. A prevalência do HPV nas amostras de câncer de vulva foi de 89%. O genótipo HPV16 foi detectado em 42% dos casos positivos e o HPV18 em 24%. A prevalência do HPV nas amostras de câncer de vagina foi de 90%. Dentre estas, 56% eram infecções pelo HPV16 e 18% pelo HPV18. Mais de 70% das pacientes com câncer de vulva e de vagina positivas para a detecção do HPV tinham mais de 50 anos. As análises estatísticas dos dados demonstraram significância do tabagismo para o câncer de vulva (p=0,0110). Uma relação entre metástase linfonodal e câncer de vulva também foi observada (p=0,0304). Um melhor prognóstico para pacientes com câncer de vagina HPV positivas foi constatado (p= 0,0158). Uma relação entre o grau de diferenciação tumoral e a presença do HPV em pacientes com câncer de vulva foi sugerida (p= 0,0541). Com base nos resultados apresentados, estima-se que a vacina contra o HPV poderia ter prevenido 58% dos casos de câncer de vulva e 65% dos casos de câncer de vagina da casuística investigada.

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