scholarly journals Papillomaviral infection: risk factors of cervical neoplastic progression

2004 ◽  
Vol 53 (3) ◽  
pp. 34-41
Author(s):  
Е. V. Shipitsyna ◽  
K. A. Babkina ◽  
Е. А. Orzheskovskaya ◽  
А. M. Savicheva
Keyword(s):  
Risk Factors ◽  
Cervical Cancer ◽  
Human Papillomavirus ◽  
P53 Gene ◽  
Hpv Infection ◽  
Neoplastic Progression ◽  
Protein Loss ◽  
Gene Encoding ◽  
Infection Risk Factors ◽  
Cell Genome

Human papillomavirus (HPV) plays the important role in the etiology of the cervical cancer. Considering that the cancer is very rare consequence of HPV-infection and even the high-grade lesions may spontaneously regress, search for the factors capable of predicting disease progression is of great significance. In the present review results of researches into risk factors of developing cervical cancer are summarized. Some virus-associated factors, such as infection with oncogenic types and variants of human papillomavirus, viral load, integration of viral DNA into cell genome, as well as host factors - polymorphism of p53 gene encoding a key apoptotic protein, loss of heterozygosity, tumor suppressor genes hypermethylation - are analyzed in terms of their prognostic value.

scholarly journals Prevalence of Human Papillomavirus Infection and Cervical Cancer Screening among Riverside Women of the Brazilian Amazon

2017 ◽  
Vol 39 (07) ◽  
pp. 350-357 ◽  
Author(s):  
Daniel Duarte ◽  
Rodrigo Vieira ◽  
Elza Brito ◽  
Maria Pinheiro ◽  
Jeniffer Monteiro ◽  
...  
Keyword(s):  
Risk Factors ◽  
Cervical Cancer ◽  
Human Papillomavirus ◽  
Low Income ◽  
Pap Test ◽  
Brazilian Amazon ◽  
Hpv Infection ◽  
Cervical Lesions ◽  
Hpv 16 ◽  
Hpv 18

Purpose The aim of this study was to evaluate the overall and type-specific prevalence of human papillomavirus (HPV) infection among females living in riverside communities in the state of Pará, in the Eastern Brazilian Amazon. These communities are inhabited by low-income people, and are accessible only by small boats. Cervical cytology and risk factors for HPV infection were also assessed. Methods Cervical samples from 353 women of selected communities were collected both for Papanicolau (Pap) test and HPV detection. Conventional polymerase chain reaction (PCR) and real-time PCR were used to assess the overall and type-specific prevalence of HPV-16 and HPV-18, the main oncogenic types worldwide. Epidemiological questionnaires were used for the assessment of the risk factors for HPV infection. Results The mean age of the participants was 37 years (standard deviation [SD] ± 13.7). Most were married or with a fixed sexual partner (79%), and had a low educational level (80%) and family monthly income (< U$ 250; 53%). Overall, HPV prevalence was 16.4% (n = 58), with 8 cases of HPV-16 (2.3%) and 5 of HPV-18 (1.4%). Almost 70% of the women surveyed had never undergone the Pap test. Abnormal cytology results were found in 27.5% (n = 97) of the samples, with higher rates of HPV infection according to the severity of the lesions (p = 0.026). Conclusions The infections by HPV-16 and HPV-18 were not predominant in our study, despite the high prevalence of overall HPV infection. Nevertheless, the oncogenic potential of these types and the low coverage of the Pap test among women from riverside communities demonstrate a potential risk for the development of cervical lesions and their progression to cervical cancer, since the access to these communities is difficult and, in most cases, these women do not have access to primary care and public health services.

scholarly journals Persistence of cervical human papillomavirus infection among cohort of women in Awka, Nigeria

2021 ◽  
Vol 22 (3) ◽  
pp. 344-351
Author(s):  
C.U. Ezebialu ◽  
I.U. Ezebialu ◽  
C.C. Ezenyeaku
Keyword(s):  
Risk Factors ◽  
Cervical Cancer ◽  
Human Papillomavirus ◽  
Facteurs De Risque ◽  
Hpv Infection ◽  
Low Grade ◽  
Hpv Dna ◽  
Papillomavirus Humain ◽  
Pcr En Temps Réel ◽  
Col De L’Utérus

Background: Many women are known to contract human papilloma virus (HPV) infection in their lifetime but only a few develop cervical cancer. One of the major factors that contribute to development of cervical cancer is HPV persistence. Several other factors including viral load have been implicated in cervical cancer development. This work therefore intends to investigate the persistence of cervical HPV infection among cohort of women in Awka, Nigeria.Methodology: A cohort of 58 women with normal Papanicolaou (Pap) test but positive HPV DNA selected from a population of 410 women at baseline were followed up over a period of 6 months from April to October 2015. Cervical specimens collected were subjected to HPV DNA test and viral quantification using TaqMan Real Time PCR and cervical cytology. Risk factors were obtained using semi structured interviewer administered questionnaires. Variables were analysed using descriptive statistics and T-test on IBM SPSS statistics version 21.0 and EPI INFOTM 7.0Results: At the 6-month follow up, cervical HPV infection persisted in 29 women, representing 50% of the women followed up. Among the 29 women, 7 (24.1%) developed abnormal Pap smear (Low grade Squamous Intraepithelial Lesion). Factors significantly associated with persistence at bivariate analysis of HPV include previous sexually transmitted infection (STI) (p=0.005), HIV positivity (p=0.04), HIV positivity but no anti-retroviral drugs (p=0.014), HPV 16 infection (p<0.0001) and age less than 40 years (p<0.0001). At multinomial logistic regression, only age above 17 years at first sexual intercourse (p=0.003, CI=0.012-0.392) and multiple lifetime sexual partners (p=0.021, CI=0.20-0.726) were statistically significant.Conclusion: High risk HPV infection, in addition to other factors peculiar to an individual may influence HPV persistenceKey words: cervical cancer, human papillomavirus, persistence, cytology, risk factors, infection   French Title: Persistance de l'infection cervicale par le papillomavirus humain parmi une cohorte de femmes à Awka, Nigéria Contexte: De nombreuses femmes sont connues pour contracter une infection au virus du papillome humain (VPH) au cours de leur vie, mais seules quelques-unes développent un cancer du col de l'utérus. L'un des principaux facteurs qui contribuent au développement du cancer du col de l'utérus est la persistance du VPH. Plusieurs autres facteurs, y compris la charge virale, ont été impliqués dans le développement du cancer du col de l'utérus. Ce travail vise donc à étudier la persistance de l'infection cervicale au VPH parmi la cohorte de femmes à Awka, au Nigeria. Méthodologie: Une cohorte de 58 femmes avec un test de Papanicolaou (Pap) normal mais un ADN HPV positif sélectionné parmi une population de 410 femmes au départ ont été suivis sur une période de 6 mois d'avril à octobre 2015. Les échantillons cervicaux collectés ont été soumis à l'ADN HPV. test et quantification virale à l'aide de la PCR en temps réel TaqMan et de la cytologie cervicale. Les facteurs de risque ont été obtenus à l'aide de questionnaires semi-structurés administrés par les intervieweurs. Les variables ont été analysées à l'aide de statistiques descriptives et d'un test T sur IBM SPSS statistics version 21.0 et EPI INFOTM 7.0 Résultats: Au suivi de 6 mois, l'infection cervicale au VPH persistait chez 29 femmes, soit 50% des femmes suivies. Parmi les 29 femmes, 7 (24,1%) ont développé un test Pap anormal (lésion squameuse intraépithéliale de bas grade). Les facteurs significativement associés à la persistance lors de l'analyse bivariée du VPH comprennent les antécédents d'infection sexuellement transmissible (IST) (p=0,005), la positivité au VIH (p=0,04), la positivité au VIH mais pas d'antirétroviraux (p=0,014), l'infection au VPH 16 (p<0,0001) et moins de 40 ans (p<0,0001). Lors de la régression logistique multinomiale, seuls les âges supérieurs à 17 ans lors du premier rapport sexuel (p=0,003, IC=0,012-0,392) et les multiples partenaires sexuels à vie (p=0,021, IC=0,20-0,726) étaient statistiquement significatifs. Conclusion: Une infection au VPH à haut risque, en plus d'autres facteurs propres à un individu, peut influencer la persistance du VPH Mots clés: cancer du col de l'utérus, papillomavirus humain, persistance, cytologie, facteurs de risque, infection  

scholarly journals Distribution of human papillomavirus types, cervical cancer screening history, and risk factors for infection in Manitoba

2012 ◽  
Vol 32 (4) ◽  
pp. 177-185 ◽  
Author(s):  
A.A. Demers ◽  
B. Shearer ◽  
A. Severini ◽  
R. Lotocki ◽  
E.V. Kliewer ◽  
...  
Keyword(s):  
Risk Factors ◽  
Cervical Cancer ◽  
Human Papillomavirus ◽  
Cancer Screening ◽  
Pap Test ◽  
Hpv Infection ◽  
Sexual Partners ◽  
Hpv Typing ◽  
Number Of Sexual Partners ◽  
Screening History

Objectives We conducted a study to investigate the prevalence of human papillomavirus (HPV) infections in an opportunistic sample of women in Manitoba, Canada. We inquired about risk factors associated with HPV infections and linked the HPV typing results with the cervical cancer screening history of the participants. Methods The study population included 592 women attending Papanicolaou (Pap) test clinics. After signing a consent form, participants were given a self-administered questionnaire on risk factors and received a conventional Pap test. Residual cells from the Pap tests were collected and sent for HPV typing. Results The mean age of the population was 43 years. A total of 115 participants (19.4%) had an HPV infection, 89 of whom had a normal Pap test. Of those who were HPV-positive, 61 (10.3%) had high-risk (Group 1) HPV. HPV-16 was the most prevalent type (15/115: 13.0% of infections). The most consistent risk factors for HPV infection were young age, Aboriginal ethnicity, higher lifetime number of sexual partners and higher number of sexual partners in the previous year. Conclusion The prevalence of HPV types in Manitoba is consistent with the distributions reported in other jurisdictions. These data provide baseline information on type-specific HPV prevalence in an unvaccinated population and can be useful in evaluating the effectiveness of the HPV immunization program. An added benefit is in the validation of a proof of concept which links a population-based Pap registry to laboratory test results and a risk behaviour survey to assess early and late outcomes of HPV infection. This methodology could be applied to other jurisdictions across Canada where such capacities exist.

scholarly journals Prevalence of vaccine and non-vaccine human papillomavirus types among women in Accra and Kumasi, Ghana: a cross-sectional study

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Oksana Debrah ◽  
Francis Agyemang-Yeboah ◽  
Emmanuel Timmy Donkoh ◽  
Richard Harry Asmah
Keyword(s):  
Risk Factors ◽  
Cervical Cancer ◽  
Human Papillomavirus ◽  
High Risk ◽  
Reproductive Health ◽  
Hpv Infection ◽  
Reproductive Health Services ◽  
High Prevalence ◽  
Hpv Genotypes ◽  
High Risk Hpv

Abstract Background Human Papillomavirus (HPV) infection is the main etiological factor for pre-invasive and invasive cervical cancer. HPV type-specific vaccination is being widely recommended to control the burden of disease, but the genotype-specific distribution of HPV may vary in different countries. The aim of the study was to determine the prevalence and distribution of HPV genotypes among women attending reproductive health services in Ghana, their associated risk factors, and to assess the potential coverage of identified HPV genotypes by three licensed vaccines among these women. Method Women presenting for reproductive health services in two regional hospitals in Accra and Kumasi from October 2014 to March 2015 were conveniently recruited into the study (n = 317). HPV-DNA detection and genotype identification were carried out by a nested multiplex PCR assay that combines degenerate E6/E7 consensus primers and type-specific primers for the detection and typing of eighteen HPV genotypes. Cytology was performed to screen women for cervical cancer lesions. Risk factors for HPV infection were analyzed by logistic regression. Statistical significance was accepted for p < 0.05. Results The age of study participants ranged from 21 to 76 years. Among women positive for HPV, 35.0% were infected with high-risk HPV, 14.5% with probable high-risk HPV, and 17.0% with low-risk HPV. The prevalence of HPV 16/18 was 8.2%, HPV 6/11/16/18 was 9.1% and HPV 6/11/16/18/31/33/45/52/58 was 28.4%. The most prevalent among HR-HPV were types 52 (18.3%) and 58 (8.8%). HPV positivity may be associated with educational background (p < 0.001), age at first pregnancy (p = 0.028), and age at coitarche (p = 0.016). Conclusions Our study revealed a high prevalence of HR-HPV infection among women. The high prevalence of HR HPV indicates that multivalent vaccines will be useful for controlling HPV burden in general population contexts. The distribution of HPVs in this population suggests that of the three currently available vaccines the nonavalent vaccine, which protects against seven HPV types in addition to HPV 16 and 18, has the highest coverage of HPV infections among Ghanaian women. Healthcare officials planning to reduce the transmission of HPV and cervical cancer must consider the coverage of the nonavalent vaccine as an advantage.

A combined ultrastructural and gene molecular research for the relationship between human uterine cervical carcinoma and human papillomavirus

1990 ◽  
Vol 48 (3) ◽  
pp. 204-205
Author(s):  
Kun Lee ◽  
Jingyi Si ◽  
Ricai Han ◽  
Wei Zhang ◽  
Bingbing Tan ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Human Papillomavirus ◽  
Intraepithelial Neoplasia ◽  
Hpv Infection ◽  
Dot Blot ◽  
Homologous Sequences ◽  
Normal Cervical Epithelium ◽  
The Relationship ◽  
Chronic Cervicitis

There are more supports for the view that human papillomavirus (HPV) infection might be an etiological factor in the development of cervical cancer when the association of persistent condylomata is considered. Biopsies from 318 cases with squamous cell carcinoma of uterine cervix, 48 with cervical and vulvar condylomata, 14 with cervical intraepithelial neoplasia (CIN), 34 with chronic cervicitis and 24 normal cervical epithelium were collected from 5 geographic regions of China with different cervical cancer mortalities. All specimens were prepared for Dot blot, Southern blot and in situ DNA-DNA hybridizations by using HPV-11, 16, 18 DNA labelled with 32P and 3H as probes to detect viral homologous sequences in samples. Among them, 32 cases with cervical cancer, 27 with condyloma and 10 normal cervical epitheliums were randomly chosen for comparative EM observation. The results showed that: 1), 192 out of 318 (60.4%) cases of cervical cancer were positive for HPV-16 DNA probe (Table I)

Human Papillomavirus Selected Properties and Related Cervical Cancer Prevention Issues

2020 ◽  
Vol 26 (18) ◽  
pp. 2073-2086
Author(s):  
Saule Balmagambetova ◽  
Andrea Tinelli ◽  
Ospan A. Mynbaev ◽  
Arip Koyshybaev ◽  
Olzhas Urazayev ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Human Papillomavirus ◽  
Cancer Prevention ◽  
Screening Program ◽  
Hpv Infection ◽  
Cervical Cancer Prevention ◽  
Point Of View ◽  
Prevention Strategies ◽  
Middle Income ◽  
Screening Programs

High-risk human papillomavirus strains are widely known to be the causative agents responsible for cervical cancer development. Aggregated damage caused by papillomaviruses solely is estimated in at least 5% of all malignancies of the human body and 16% in cancers that affect the female genital area. Enhanced understanding of the complex issue on how the high extent of carcinogenicity is eventually formed due to the infection by the Papoviridae family would contribute to enhancing current prevention strategies not only towards cervical cancer, but also other HPV associated cancers. This review article is aimed at presenting the key points in two directions: the current cervical cancer prevention and related aspects of HPV behavior. Virtually all applied technologies related to HPV diagnostics and screening programs, such as HPV tests, colposcopy-based tests (VIA/VILI), conventional and liquid-based cytology, currently available are presented. Issues of availability, advantages, and drawbacks of the screening programs, as well as vaccination strategies, are also reviewed in the article based on the analyzed sources. The current point of view regarding HPV is discussed with emphasis on the most problematic aspect of the HPV family concerning the observed increasing number of highly carcinogenic types. Present trends in HPV infection diagnostics throughout the human fluids and tissues are also reported, including the latest novelties in this field, such as HPV assay/self-sample device combinations. Besides, a brief outline of the related prevention issues in Kazakhstan, the leading country of Central Asia, is presented. Kazakhstan, as one of the post-soviet middle-income countries, may serve as an example of the current situation in those terrains, concerning the implementation of globally accepted cervical cancer prevention strategies. Along with positive achievements, such as the development of a nationwide screening program, a range of drawbacks is also analyzed and discussed.

scholarly journals Nurses’ and midwives’ knowledge, attitudes, and acceptance regarding human papillomavirus vaccination in Ghana: a cross-sectional study

BMC Nursing ◽  
2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Nancy Innocentia Ebu ◽  
Gifty Esinam Abotsi-Foli ◽  
Doreen Faakonam Gakpo
Keyword(s):  
Risk Factors ◽  
Cervical Cancer ◽  
Human Papillomavirus ◽  
Hpv Vaccination ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional ◽  
Cancer Risk Factors ◽  
Cervical Cancer Risk ◽  
Nurses And Midwives

Abstract Background Nurses and midwives play important roles in educating the public on cervical cancer prevention strategies. Aim This study sought to assess nurses’ and midwives’ knowledge of, attitudes towards, and acceptance of human papillomavirus (HPV) vaccination in relation to their background characteristics. Methods A descriptive cross-sectional study using questionnaires was conducted with a convenience sample of 318 female nurses and midwives, ages 20 to 59, at the Korle-Bu Teaching Hospital in Ghana. The data were summarised using frequencies, percentages, chi-square tests, and Fisher’s exact tests. Results The results indicated that 41.5% (n = 132) of the participants had high levels of knowledge about cervical cancer risk factors, and 17.6% (n = 56) of the respondents had received at least one dose of the HPV vaccine. Reasons for receiving the HPV vaccination included advice from a colleague (12.9%, n = 41) and perceived threat of cervical cancer (11.7%, n = 37). Of the 262 respondents who had not been vaccinated, 24.45% (n = 78) strongly agreed and 28.0% (n = 89) agreed with the statement that there was limited information on HPV vaccination. Also, there were statistically significant associations between age (X2 = 23.746, p = 0.001), marital status (X2 = 14.758, p = 0.005), completed level of education (X2 = 21.692, p = 0.001), and duration of working at the hospital (X2 = 8.424, p = 0.038) and acceptance of HPV vaccination. Conclusions This study demonstrated gaps in knowledge about cervical cancer risk factors and attitudes towards HPV vaccination, indicating the need for targeted measures to improve knowledge and attitudes. Also, measures to increase acceptance of HPV vaccination among nurses and midwives should consider their sociodemographic characteristics.

The role of circumcision, tobacco, and alcohol use in genital human papillomavirus infection among men from Denmark

2021 ◽  
pp. 095646242110147
Author(s):  
Julie B Hebnes ◽  
Christian Munk ◽  
Kirsten Frederiksen ◽  
Hans O Joergensen ◽  
Thomas Iftner ◽  
...  
Keyword(s):  
Risk Factors ◽  
Sexual Behavior ◽  
Human Papillomavirus ◽  
Alcohol Use ◽  
Potential Risk ◽  
Hpv Infection ◽  
Sex Partners ◽  
Current Cigarette Smoking ◽  
Hpv Dna ◽  
Potential Risk Factors

It is crucial to understand the natural history of genital human papillomavirus (HPV) infection in men to prevent the increasing male HPV-related disease burden. We evaluated the associations between HPV infection and circumcision, smoking, and alcohol use after accounting for sexual behavior. The study included 2331 male personnel from Danish barracks. Penile swabs were tested for HPV DNA with a polymerase chain reaction assay, INNO-LiPA. All men completed a self-administered questionnaire providing data on potential risk factors for HPV such as lifestyle and sexual habits. Using multivariable logistic regression, associations between potential risk factors and HPV infection were estimated and expressed as odds ratios (ORs) with 95% confidence intervals (CI). Current cigarette smoking was associated with increased odds of HPV detection (OR = 1.2; 95% CI: 1.0–1.4), but we found no association with alcohol use in the analysis adjusted for sexual behavior. Circumcision reduced the odds of a prevalent HPV infection (OR = 0.7; 95% CI: 0.5–1.0) although not statistically significantly. Strong associations with lifetime and recent number of female sex partners were observed, but in contrast to uncircumcised men, increasing number of sex partners was not associated with higher HPV prevalence in circumcised men. In conclusion, smoking was associated with increased odds of penile HPV in men from the general population in Denmark, whereas circumcision seemed to reduce the risk. Moreover, our results indicated that there might be differences in the viral susceptibility between circumcised and uncircumcised men.

Sign in / Sign up

Export Citation Format

Share Document