scholarly journals Hydrolyzed FB1 (aminopentol) detection on urine of HPV positive Mexican women: A preliminary study

2021 ◽  
Author(s):  
M. Ángeles Ramírez-Cisneros ◽  
Vladimir Rivera ◽  
Maria Yolanda Rios ◽  
Cruz Vargas-De-León ◽  
Sonia Dávila ◽  
...  
Keyword(s):  
Transmitted Disease ◽  
Healthy Woman ◽  
Fumonisin B1 ◽  
Hpv Infection ◽  
Multiple Sexual Partners ◽  
Sexually Transmitted ◽  
Surface Receptors ◽  
Preliminary Study ◽  
Main Component ◽  
Membrane Components

Abstract Human Papillomavirus (HPV) infection is the most common sexually transmitted disease in humans. About 200 HPV types have been described and classified into high and low oncogenic risk for its ability to transform the cell. Some main risk factors for HPV infection are multiple sexual partners, multiparity and immunosuppression. However, these factors can not completely explain the HPV prevalence in different world regions. Mexico has a high global burden, being important to determine other external biological factors implicated. The infection is mediated by surface receptors of basal stratum cells that bind to the viral capsid entering the cell by endocytosis. Some cell membrane components such as sphingolipids have a role in structure and membrane permeability. Besides, fumonisins are micotoxins structurally very similar to sphingolipids, fumonisin B1 (FB1) is the most abundant and most similar to some sphingolipids such ceramide. Fumonisins are produced by Fusarium fungus, widely distributed in maize, the main component of Mexican diet. Thus, it is possible that FB1 contamination be a factor to permeabilize the membrane expediting the HPV infection. In this preliminary study, we postulated that mechanism of HPV infection is mediated by contamination with FB1, hence, FB1 could be higher in women HPV positive. Urine samples from patients with HPV infection and healthy woman were analyzed by UPLC-MS, hydrolyzed FB1 was found only in the infected women, in contrast, in HPV negative women was not detected. Additional studies are needed to support the hypothesis of contamination with FB1 as biological risk factor for HPV infection.

scholarly journals Hydrolyzed FB1 (aminopentol) detection on urine of HPV positive Mexican women: A preliminary study

2020 ◽  
Author(s):  
M. Ángeles Ramírez-Cisneros ◽  
Vladimir Rivera ◽  
Maria Yolanda Rios ◽  
Cruz Vargas-De-León ◽  
Sonia Dávila ◽  
...  
Keyword(s):  
Transmitted Disease ◽  
Healthy Woman ◽  
Fumonisin B1 ◽  
Hpv Infection ◽  
Multiple Sexual Partners ◽  
Sexually Transmitted ◽  
Surface Receptors ◽  
Preliminary Study ◽  
Main Component ◽  
Membrane Components

Abstract Human Papillomavirus (HPV) infection is the most common sexually transmitted disease in humans. About 200 HPV types have been described and classified into high and low oncogenic risk for its ability to transform the cell. Some main risk factors for HPV infection are multiple sexual partners, multiparity and immunosuppression. However, these factors can not completely explain the HPV prevalence in different world regions, Mexico has a high global burden, being important to determine other external biological factors implicated. The infection is mediated by surface receptors of basal stratum cells that bind to the viral capsid entering the cell by endocytosis. Some cell membrane components such as sphingolipids have a role in structure and membrane permeability. Besides, fumonisins are micotoxins structurally very similar to sphingolipids, fumonisin B1 (FB1) is the most abundant and most similar to some sphingolipids such ceramide. Fumonisins are produced by Fusarium fungus, widely distributed in maize, the main component of Mexican diet. Thus, it is possible that FB1 contamination be a factor to permeabilize the membrane expediting the HPV infection. In this preliminary study, we postulated that mechanism of HPV infection is mediated by contamination with FB1, hence, FB1 could be higher in women HPV positive. Urine samples from patients with HPV infection and healthy woman were analyzed by UPLC-MS, hydrolyzed FB1 was found only in the infected women, in contrast, in HPV negative women was not detected. Additional studies are needed to support the hypothesis of contamination with FB1 as biological risk factor for HPV infection.

scholarly journals SEROPREVALENCE AND RISK FACTORS ASSOCIATED WITH HPV INFECTIONS AMONG PATIENTS IN KOGI EAST SENATORIAL ZONE

2020 ◽  
Vol 4 (3) ◽  
pp. 645-655
Author(s):  
OLOBO F. AWULU ◽  
Mariam Aminu ◽  
A. B. SULEIMAN ◽  
DANIEL MAKOLO
Keyword(s):  
Risk Factors ◽  
Sexual Debut ◽  
Transmitted Disease ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Hpv Infection ◽  
Sexual Partners ◽  
Multiple Sexual Partners ◽  
Sexually Transmitted ◽  
Factors Associated

Analysis of prevalence and risk factors for Human Papilloma Virus (HPV) is the basis for prophylactic strategies against HPV infections. This study was to determine the seroprevalence of human papillomavirus, sociodemographic and risk factors associated with acquiring the virus among the study population. A total of 195 samples were collected by simple random sampling technique from three major hospitals in the zone. Serum from blood samples was used for ELISA and analyzed for IgM. Overall prevalence of 3.08% (6/195) was established for HPV infection. Patients with early sexual activity and those with multiple sexual partners were likely to be infected than their counterparts with 15.8%: 3/19 (χ 2 =16.4, df=3, p=0.001) and 50%: 2/4 (χ 2 =30.2, df=1, p=0.005) respectively. The infection was more among those who got married at age range of 26-30 years with prevalence of 5.4%: 2/37 (χ 2 =1.30, df = 5, p=0.82). On the basis of sex, female were found to have higher prevalence of 3.6%: 6/167(χ 2 =1.04, df = 1, p=0.6). Subjects with sexually transmitted disease (STD) had a higher prevalence of 8%: 2/25(χ 2 =2.45, df=2, p=0.32). The study shows that infection with HPV was strongly associated with age of sexual debut and number of sexual partners. It also reveals the occurrence of HPV infection in Kogi East, Nigeria. Hence, there is need for routine screening, public education and vaccination to prevent the spread of the virus which is a threat to public health.

scholarly journals Prevalence of High Risk HPV in HIV-Infected Women From Belém, Pará, Amazon Region of Brazil: A Cross-Sectional Study

2021 ◽  
Vol 9 ◽  
Author(s):  
Jacqueline Cortinhas Monteiro ◽  
Ricardo Roberto de Souza Fonseca ◽  
Tuane Carolina de Sousa Ferreira ◽  
Luana Lorena Silva Rodrigues ◽  
Andreza Reis Brasil da Silva ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
High Risk ◽  
Hpv Infection ◽  
Cross Sectional Study ◽  
Reproductive Age ◽  
Transmitted Infection ◽  
Cross Sectional ◽  
Multiple Sexual Partners ◽  
Sexually Transmitted ◽  
High Risk Hpv

Human papillomavirus (HPV) is the most common sexually transmitted infection in the world. Several studies have shown a higher prevalence of HPV infection in HIV-infected women. The aim of this study was to determine the prevalence and the genotype diversity of HPV infection in HIV-infected women. From April 2010 to December 2012 cervical specimens were collected from 169 HIV-infected women who screening for cervical cancer at Reference Unit in Belém. The detection of HPV infection was performed by nested PCR and HPV type was performed using a commercial system. The prevalence of HPV infection was 63.3%. Of the 47 genotyped samples, 40.4% was found positive for high risk-HPV 16 and 12.8% for high risk-HPV 52. HPV infection was predominant in the group of women with no incidence of cytological abnormalities and more prevalent in women of reproductive age, unmarried, low education level, and who reported use condoms during sexual intercourse. It was observed an association between HPV infection and independent variables, such as condom use, multiple sexual partners, and history of sexually transmitted diseases. High-risk types of HPV infection were prevalent in our study. Infection with multiple high-risk HPV genotypes may potentiate the development of cervical cancer in HIV-infected women.

Prevalence of Chlamydia trachomatis in a public colposcopy clinic population

Sexual Health ◽  
2007 ◽  
Vol 4 (2) ◽  
pp. 133 ◽  
Author(s):  
Rodney W. Petersen ◽  
Sepehr N. Tabrizi ◽  
Suzanne Garland ◽  
Julie A. Quinlivan
Keyword(s):  
Chlamydia Trachomatis ◽  
Chlamydial Infection ◽  
Transmitted Disease ◽  
Hpv Infection ◽  
Public Health Issue ◽  
Transmitted Infection ◽  
Cross Sectional ◽  
Sexually Transmitted ◽  
Clinic Population ◽  
Colposcopy Clinic

Background: Chlamydia trachomatis is a major public health issue, with notifications of this sexually transmitted disease continuing to rise in Australia. Women attending colposcopy clinics are referred for treatment of cervical abnormalities often associated with human papilloma virus (HPV) infection. There is evidence that women who have acquired one sexually transmitted infection, such as HPV, are at higher risk of acquiring another. Women attending colposcopy clinics may therefore be at risk of undiagnosed infection with C. trachomatis. Aim: To determine the prevalence of C. trachomatis in women attending a public metropolitan colposcopy clinic in Victoria. Methods: A cross-sectional study was performed. Institutional ethics committee approval and informed consent were obtained. Consecutive women attending the colposcopy clinic completed a questionnaire and had a swab collected from the endocervix for analysis by polymerase chain reaction for C. trachomatis. Positive screens were treated in accordance with best practice. Data were analysed with Minitab Version 2004 (Minitab Inc, State College, PA, USA). Results: Of 581 women approached to participate in the trial, consent was obtained from 568 women (98%) and final outcome data was available on 560 women (99%). The overall rate of chlamydial infection was 2.1% (95% CI 1.5–2.7%). However, in women aged 25 years or less the rate was 5.8% (95% CI 3.8–7.8%) and in women over 25 years it was only 0.9% (95% CI 0.4–1.4%). Apart from age, no other demographic factor was significantly associated with chlamydial infection. Conclusion: Although the prevalence of chlamydial infection in the colposcopy clinic population as a whole does not warrant a policy for routine screening, screening directed at women aged 25 years or less would gain the greatest yields in terms of cost efficacy. Such a policy should be implemented as standard practice.

Risk factors associated with human papillomavirus infection status in a Korean cohort

2013 ◽  
Vol 142 (8) ◽  
pp. 1579-1589 ◽  
Author(s):  
H. LEE ◽  
D.-H. LEE ◽  
Y.-M. SONG ◽  
K. LEE ◽  
J. SUNG ◽  
...  
Keyword(s):  
Risk Factors ◽  
Human Papillomavirus ◽  
Contraceptive Use ◽  
Transmitted Disease ◽  
Multivariate Regression Analysis ◽  
Hpv Infection ◽  
Sexually Transmitted ◽  
Papillomavirus Infection ◽  
Behavioural Factors ◽  
Epidemiological Characteristics

SUMMARYBy surveying extensive epidemiological behavioural and sexual risk factors in a Korean twin cohort, risk factors for human papillomavirus (HPV) infection were investigated in South Korea. A total of 912 vaginal specimens were collected from the Healthy Twin Study, consisting of twins and their families. A range of epidemiological, behavioural, and sexual activity characteristics were evaluated using multivariate logistic regression analyses of family and twin relationships, adjusted to elucidate the risk factors for HPV infection. Of the various epidemiological characteristics, the possibility of extramarital affairs [odds ratio (OR) 2·48, 95% confidence interval (CI) 1·02–6·02] significantly increased the prevalence of HPV infection. Our multivariate regression analysis indicated that oral contraceptive use (OR 40·64, 95% CI 0·99–1670·7) and history of sexually transmitted disease (OR 2·56, 95% CI 0·93–7·10) were strongly associated with an increase in HPV infection. On the other hand, more frequent vaginal douching (OR 0·32, 95% CI 0·13–0·77) significantly decreased the prevalence of HPV infection. Our results suggested that HPV infection is associated with both biological and behavioural factors.

Human Papillomavirus Infection and Prevention In The Adolescent

2020 ◽  
Author(s):  
Alexandria Richards ◽  
Joanna Stacey
Keyword(s):  
Human Papillomavirus ◽  
Hpv Vaccination ◽  
Transmitted Disease ◽  
Cervical Dysplasia ◽  
Vaccine Safety ◽  
Genital Warts ◽  
Hpv Infection ◽  
Sexually Transmitted ◽  
Papillomavirus Infection

Human papillomavirus, or HPV, is a common sexually transmitted disease, most often acquired during the adolescence or the early 20s. It can be divided into oncogenic and nononcogenic serotypes. It is responsible for genital warts as well as pathologic diseases that can lead to genital cancers and cancers of the oropharyngeal tract in both males and females. The majority of adolescents who acquire HPV infections do not go on to develop cancer. New discoveries about the virus’ persistence and latency direct how we treat adolescents with HPV infections. Recommendations for prevention of HPV include use of the 9-valent vaccine against the most common oncogenic HPV serotypes. Screening should be delayed until the age of 21, with the exception of immunocompromised women. The HPV vaccination is safe and effective, and does not encourage sexual activity among adolescents. Both boys and girls should be vaccinated against HPV at 11 to 12 years of age but may receive the vaccination as early as 9 or as late as 21 (males) or 26 (females) years of age. The vaccine may now also be given in only two doses if the series was started before the age of 15. Follow-up studies in the years after the vaccine’s introduction have shown large decreases in HPV infection rates. This review contains 7 figures, 7 tables and 63 references Key Words: Oncogenic subtype, Oropharyngeal cancer, Infection persistence, Immune tolerance, Cervical dysplasia, Genital warts, 9-valent vaccine, Vaccine safety  

scholarly journals Knowledge of prevention and treatment of human papillomavirus (HPV) infections among young men

2021 ◽  
Vol 15 (SUPPLEMENT 2) ◽  
pp. 1-7
Author(s):  
Maria Florkiewicz ◽  
Anna Tobolska ◽  
Grażyna Bączek
Keyword(s):  
Human Papillomavirus ◽  
Online Survey ◽  
Transmitted Disease ◽  
Young Men ◽  
Skin Lesions ◽  
Hpv Infection ◽  
Sexually Transmitted ◽  
Prevention And Treatment ◽  
Level Of Knowledge ◽  
High Level

Background: Today, human papillomavirus (HPV) infection has become the most common sexually transmitted disease worldwide. Major consequences of contracting the virus include both mild skin lesions and a range of cancers, the most frequent of which are cervical cancer, penile cancer, oral cavity cancer, throat cancer, and anal cancer, undoubtedly demonstrating its high oncogenic potential. Aim of the study: The objective of this study is to determine the level of knowledge among men aged 18–26 years with regard to HPV prevention and treatment. Materials and methods: An online survey was conducted using a questionnaire developed by the authors. The questionnaire was comprised of 16 closed-ended questions and 5 questions pertaining to demographics. Chi-squared tests or Spearman’s rank correlation coefficients were used for the statistical analysis. Results: Only 27.5% of the respondents correctly answered a question regarding the number of types of the virus, and 33% correctly determined the percentage of the cases where an active infection turns into a chronic state. However, a high level of awareness of the routes of infection was demonstrated, with more than half of the respondents (63%) answering this question correctly. Additionally, more than two-thirds (67.9%) of the men indicated correctly that one of the factors facilitating infection is a young age at the time of the first contact with the virus. Nearly all respondents (90%) indicated that using condoms is an effective form of prevention. Conclusions: The results expressly indicate an insufficient level of knowledge regarding HPV among young men. Due to the high level of sexual activity in this age group, increased education with regard to the prevention of sexually transmitted diseases is needed.

scholarly journals Prevalence high risk Human Papillomavirus (HPV) in HIV-infected women from Belém, Pará, Amazon region of Brazil: A cross-sectional study

2020 ◽  
Author(s):  
Jacqueline Monteiro ◽  
Ricardo Roberto de Souza Fonseca ◽  
Tuane Ferreira ◽  
Luana Rodrigues ◽  
Andreza Silva ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Human Papillomavirus ◽  
High Risk ◽  
Transmitted Disease ◽  
Hpv Infection ◽  
Cross Sectional Study ◽  
Reproductive Age ◽  
Cross Sectional ◽  
Sexually Transmitted ◽  
High Risk Hpv

Abstract Background: Human papillomavirus (HPV) is the most common sexually transmitted disease in the world. Several studies have shown a higher prevalence of HPV infection in HIV-infected women. The aim of this study was to determine the prevalence and the genotype diversity of HPV infection in HIV-infected women.Methods: From April 2010 to December 2012 cervical specimens were collected from 169 HIV-infected women who screening for cervical cancer at Reference Unit in Belém. The detection of HPV infection was performed by nested PCR and HPV type was performed using the commercial kit.Results: The prevalence of HPV infection was 63,3%. Of the 47 genotyped samples, 40,4% was found positive for high risk-HPV 16 and 12.8% for high risk-HPV 52. HPV infection was predominant in the group of women with no incidence of cytological abnormalities and more prevalent in women of reproductive age, unmarried, low education level and who used condoms during sexual intercourse. It was observed an association between HPV infection and independent variables, such as condom use, multiple sexual partners and history of sexually transmitted diseases.Conclusions: High-risk types of HPV infection were prevalent in our study. Infection with multiple high-risk HPV genotypes may potentiate the development of cervical cancer in HIV-infected women.

scholarly journals Genital HPV infection among heterosexual and homosexual male attendees of sexually transmitted diseases clinic in Beijing, China

2017 ◽  
Vol 145 (13) ◽  
pp. 2838-2847 ◽  
Author(s):  
H.N. XIN ◽  
H.J. LI ◽  
Z. LI ◽  
X.W. LI ◽  
M.F. LI ◽  
...  
Keyword(s):  
High Risk ◽  
Sexual Behaviors ◽  
Hpv Vaccine ◽  
Hpv Vaccination ◽  
Transmitted Disease ◽  
Hpv Infection ◽  
Etiologic Agent ◽  
Hospital Data ◽  
Sexually Transmitted ◽  
Hpv Genotypes

SUMMARYHuman papillomavirus (HPV) has been identified as etiologic agent of various cancers for both men and women. However, HPV vaccine has not been recommended for men in China by far. To provide more evidences to promote HPV vaccination among males at high-risk of infection, this study investigated genital HPV genotypes among male attendees of sexually transmitted disease (STD) clinic. Male attendees (⩾18 years old) were recruited from STD clinic of Beijing Ditan Hospital. Data on sociodemographic characteristics and self-reported sexual behaviors were collected based on questionnaire. Genital swab specimens were collected for HPV genotypes. Finally, a total of 198 eligible participants were included in the study. Nearly half of them were infected with at least one type of HPV. The prevalence of genital infection among participants with only heterosexual behaviors (50·91%, 56/110) was significantly higher than those with only homosexual behaviors (36·36%, 32/88) (P < 0·001). However, the distribution pattern of the most frequently observed HPV subtypes were found to be similar between these two subgroups. HPV31, HPV18, HPV16 and HPV58 were the most frequently identified high-risk types and HPV11, HPV6, HPV81 and HPV61 were the most frequently observed low-risk types. Our results, although need further verification by larger sample size, suggested that currently available HPV vaccines covered most prevalent HPV types observed in Chinese men. As HPV vaccine has been approved for application in females in China, molecular epidemiological studies and intervention studies among high-risk males should be promoted as well.

scholarly journals Cloning, Expression, and Purification of the rE2 Protein Human Papillomavirus type 16

2020 ◽  
pp. 1-5
Author(s):  
Saucedo Mendiola María Leticia ◽  
Keyword(s):  
Human Papillomavirus ◽  
Sexually Transmitted Disease ◽  
Reliable Method ◽  
Uterine Cancer ◽  
Transmitted Disease ◽  
Hpv Infection ◽  
Expression And Purification ◽  
Men And Women ◽  
Sexually Transmitted ◽  
Human Papillomavirus Type 16

Human papillomavirus (HPV) infection is the most common sexually transmitted disease, both in men and women, and the persistence of this infection is the main causative agent of cervical-uterine cancer. HPV 16 protein E2 is important in viral replication and transcription. For this reason, it is of utmost importance to have a reliable method of expression and purification of recombinant E2 (rE2) proteins to carry out experiments focused on the development of drugs against HPV.

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