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Distribution of HPV genotypes in cervical intraepithelial lesions and cervical cancer in Tanzanian women.

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Date
2011-11-14
Authors
Vidal, Adriana C
Murphy, Susan K
Hernandez, Brenda Y
Vasquez, Brandi
Bartlett, John A
Oneko, Olola
Mlay, Pendo
Obure, Joseph
Overcash, Francine
Smith, Jennifer S
van der Kolk, Mike
Hoyo, Cathrine
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(12 total)
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Abstract
BACKGROUND: Infection with human papillomavirus (HPV) is associated with uterine cervical intraepithelial neoplasia (CIN) and invasive cancers (ICC). Approximately 80% of ICC cases are diagnosed in under-developed countries. Vaccine development relies on knowledge of HPV genotypes characteristic of LSIL, HSIL and cancer; however, these genotypes remain poorly characterized in many African countries. To contribute to the characterization of HPV genotypes in Northeastern Tanzania, we recruited 215 women from the Reproductive Health Clinic at Kilimanjaro Christian Medical Centre. Cervical scrapes and biopsies were obtained for cytology and HPV DNA detection. RESULTS: 79 out of 215 (36.7%) enrolled participants tested positive for HPV DNA, with a large proportion being multiple infections (74%). The prevalence of HPV infection increased with lesion grade (14% in controls, 67% in CIN1 cases and 88% in CIN2-3). Among ICC cases, 89% had detectable HPV. Overall, 31 HPV genotypes were detected; the three most common HPV genotypes among ICC were HPV16, 35 and 45. In addition to these genotypes, co-infection with HPV18, 31, 33, 52, 58, 68 and 82 was found in 91% of ICC. Among women with CIN2-3, HPV53, 58 and 84/83 were the most common. HPV35, 45, 53/58/59 were the most common among CIN1 cases. CONCLUSIONS: In women with no evidence of cytological abnormalities, the most prevalent genotypes were HPV58 with HPV16, 35, 52, 66 and 73 occurring equally. Although numerical constraints limit inference, findings that 91% of ICC harbor only a small number of HPV genotypes suggests that prevention efforts including vaccine development or adjuvant screening should focus on these genotypes.
Type
Journal article
Permalink
https://hdl.handle.net/10161/5939
Published Version (Please cite this version)
10.1186/1750-9378-6-20
Publication Info
Vidal, Adriana C; Murphy, Susan K; Hernandez, Brenda Y; Vasquez, Brandi; Bartlett, John A; Oneko, Olola; ... Hoyo, Cathrine (2011). Distribution of HPV genotypes in cervical intraepithelial lesions and cervical cancer in Tanzanian women. Infect Agent Cancer, 6(1). pp. 20. 10.1186/1750-9378-6-20. Retrieved from https://hdl.handle.net/10161/5939.
This is constructed from limited available data and may be imprecise. To cite this article, please review & use the official citation provided by the journal.
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Scholars@Duke

Bartlett

John Alexander Bartlett

Professor of Medicine
My clinical investigation is focused on the pathogenesis and treatment of HIV infection and its complicastions, especially in resource-limited settings. Key Words: HIV infection, AIDS, treatment strategies, treatment failure, co-infections, resource-limited settings
Murphy

Susan Kay Murphy

Associate Professor in Obstetrics and Gynecology
My research interests are largely centered around epigenetics and the role of epigenetic modifications in health and disease. My research projects include studies of gynecologic malignancies, including working on approaches to target ovarian cancer cells that survive chemotherapy and later give rise to recurrent disease.  I have ongoing collaborative projects in which we investigate the nature of the Developmental Origins of Health and Disease (DOHaD) hypothesis. DOHaD reflects the ide
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