Evidence map›Paper›PMID 27532014›Full record

ArticleInfectious agents and cancer2016

Human papillomavirus genotypes distribution in cervical cancer cases in Gabon.

Samira Zoa-Assoumou, Angelique Ndjoyi-Mbiguino, Barthelemy Mabika Mabika, Ernest Belembaogo, Abdelkim Khattabi, My Mustapha Ennaji

Abstract read
In one paragraph

Article in Infectious agents and cancer, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed.

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  8. Factors associated with Trichomonas vaginalis infection in reproductive-aged women attending cervical screening in southeast of Brazil.The Brazilian journal of infectious diseases : an official publication of the Brazilian Society of Infectious Diseases
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Samira Zoa-AssoumouLaboratoire National de Référence IST/Sida, Laboratoire de Référence OMS Rougeole, Rubéole, Fièvre jaune et Tétanos néonatal, Département de Bactériologie-Virologie, Faculté de Médecine et des Sciences de la Santé, Université des Sciences de la Santé, Libreville, Gabon ; Laboratoire de Virologie, Microbiologie et Qualité/Eco-toxicologie et Biodiversité, Faculté des Sciences et Techniques de Mohammedia, Université Hassan II-Casablanca, Casablanca, Morocco.
Angelique Ndjoyi-MbiguinoLaboratoire National de Référence IST/Sida, Laboratoire de Référence OMS Rougeole, Rubéole, Fièvre jaune et Tétanos néonatal, Département de Bactériologie-Virologie, Faculté de Médecine et des Sciences de la Santé, Université des Sciences de la Santé, Libreville, Gabon.
Barthelemy Mabika MabikaDépartement d'Anatomie et de Cytologie pathologiques, Faculté de Médecine et des Sciences de la Santé, Université des Sciences de la Santé, Libreville, Gabon.
Ernest BelembaogoInstitut de Cancérologie d'Agondjé, Libreville, Gabon.
Abdelkim KhattabiLaboratoire d'Agroalimentaire et Santé, Département de biologie, Faculté des Sciences et Techniques de Settat, Université Hassan I, Settat, Morocco.
My Mustapha EnnajiLaboratoire de Virologie, Microbiologie et Qualité/Eco-toxicologie et Biodiversité, Faculté des Sciences et Techniques de Mohammedia, Université Hassan II-Casablanca, Casablanca, Morocco.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCervical cancer is a real public health problem in African countries. The relation between HPV and cervical cancer is well established. However, it is known that the distribution of HPV genotypes differ geographically and this may influence the effectiveness of the three available vaccines, which among other HPV genotypes targets the genotypes 16 and 18 that cause about 70 % of cervical cancers cases. The objective of this study was to identify for the first time the HPV genotypes distribution in cervical cancer specimens obtained from Gabonese women.

methodsA total of 105 cervical samples including 93 formalin-fixed paraffin embedded tissues collected between 2007 and 2013 and 12 fresh biopsies collected in August 2013 were investigated. The presence of HPV DNA was analyzed by nested PCR with primers MY09/11 and GP5+/6+ followed by sequencing for HPV genotyping.

resultsAmplification of the housekeeping gene (β-globin) with PCO4/GH20 primers was successful for 91.4 % (96/105) of the cervical cancer samples and HPV DNA was detected in all the 96 samples. Five different HPV genotypes were identified. HPV 16 [58.3 %; 95 % IC: 48.44-68.16] was the most common genotype followed by HPV 33 [25.0 %; 95 % IC: 16.34-33.66], HPV 18 [8.4 %; 95 % IC: 2.86-13.94], HPV 70 [7.3 %; 95 % IC: 2.1-12.5] and HPV 31 [1.1 %; 95 % IC: -0.986-3.186]. HPV 16 was also the most prevalent in all histological malignant lesions. It was found in 56.6 % of squamous cervical carcinoma and 69.2 % of adenocarcinoma. Concerning the HPV positive adenocarcinoma cases, HPV 18 was identified in 7.7 % (1/13).

conclusionThese findings show the predominance of HPV 16 in cervical cancer cases among Gabonese women. However, HPV33 is more prevalent than HPV18. Our study suggests that HPV vaccines may be effective at reducing the burden of cervical cancer in Gabon.

Indexed as

Cervical cancerGabonGenotypingHuman papillomavirus

Identifiers

PMID27532014
PMCPMC4986226

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