Frequency Of Human Papillomavirus Research Articles

Prevalence of Carcinogenic Genotypes of HPV-Infected Women in a Ten-Year Period (2014-2023) in Vojvodina, Serbia.

Background and Objectives: Human papillomavirus (HPV) infection and its etiological role in the development of cervical cancer are well established. The cervical cancer mortality rate in Serbia is one of the highest among European countries, and this cancer is the second-leading cause of death in Serbian women aged from 15 to 44. Materials and Methods: This retrospective study was conducted at the Institute of Public Health of Vojvodina. A total of 10,062 cervical specimens from Serbian women were collected and HPV tested in ten years. The study patients were divided into five age groups. HPV genotype testing was performed using a commercial kit to detect 14 high-risk (HR) HPV genotypes. Additionally, cervix cytology data have been available for patients tested in 2022 and 2023. Results: An overall positive rate was found in 43.3% of patients (4356/10,062). A single HPV infection (62.1%) was the main infection pattern. The most frequent HR HPV genotypes were HPV 16, 31, 52, 56, 39, and 51, comprising 62.3% of the detected genotypes, including multiple infections. A significant difference was noted in the HPV prevalence across the different age groups, with a bimodal distribution of HPV infection. The highest prevalence was recorded in the age group ≤ 30 and those after 61 years. Women diagnosed with high-grade squamous intraepithelial lesions (HSIL) were significantly older compared to others. HR HPV is the most prevalent in patients with HSIL cytological findings (76.5%). The most common type, according to age-specific distribution and cytological findings, was HR HPV 16. Conclusions: This study provides comprehensive data on HR HPV distribution among Serbian women, which can serve as a basis for subsequent monitoring of genotypic distribution. It is particularly significant considering they are missing in the updated ICO/IARC Report for Serbia, and the cervical cancer mortality rate in Serbia is one of the highest among European countries.

Molecular Epidemiology of Human Papilloma Virus (HPV) in Women’s Cervical Samples from Tehran, Iran

Background: Cervical cancer (CC) is the second-leading cause of cancer death among women. In this cancer, more than any other type of malignancy, the effects of prevention, early diagnosis, and timely treatment on reducing the death rate are evident. Hence the aim of this study was to Investigating the prevalence of human papilloma virus different genotypes in women’s cervical tissue samples. Methods: In this cross-sectional study, 1045 samples obtained from referred patients were selected for periodic cervical examinations. Then, DNA extraction from cytology liquid brush was done in accordance with the standard method. The presence of HPV was determined by PCR. By using pyrosequencing method and then BLAST online search, HPV genotypes were identified. Results: of 1045 patients, 159 (15%) had HPV infection in which 50.3% were LSIL by frequent HPV types 6, 18, 16, 11; 19.4% were HSIL by frequent HPV types 16, 18, and 30.1% were ASCUS by frequent HPV types 6, 11, respectively. The age group, 30–40 years had the highest prevalence of HPV infection (p-value = 0.6). 21.4% people diagnosed by mix genotype HPV infection. significant value identified by the pathological patterns and multiple types infections (p-value=0.007), HPV-16 infection and younger age (p-value=0.02). Conclusion: our study showed 15% HPV infection identified in studied samples and the most HPV prevalent types were 6, 18, 11, 16, respectively. HPV-16 is common in younger ages. HPV vaccination and regular screening programs are major prevention measures.

Human Papillomavirus Genotype Distribution in a Hospital-based Single-Center Study

Background: Cervical cancer is reported as one of the most prevalent malignancies worldwide in women. There is a substantial connection between cervical diseases and infection with Human Papillomavirus (HPV), especially Types 16 and 18 of HPV. Objective: This study aimed to assess the HPV genotype distribution to determine its most common type at a referral hospital in Iran. Methods: This cross-sectional study was conducted on 400 women with positive HPV result tests who visited the gynecologic oncology clinic of Baqiyatallah Hospital from 2017-2021. Results: The average age of subjects was 37.46±9.75 years (range=19-74). About 167 (41.8%) of the patients were between 25 to 35 years. The analysis showed that 137 (34.2%) patients had only low-risk (LR) typing, 129 (32.2%) patients had only high-risk (HR) typing, and 134 (33.5%) patients had both HR and LR typing. The most frequent LR HPV types were HPV 6 (18.5%) and 11 (17%), and the most frequent HR HPV types were HPV-16 (14.7%), 52 (8.2%), 18, and 31 (6.5%). Conclusion: This study showed that the most frequent age category in both low- and HR HPVpositive women is the age 25 to 35 years. The second most common HR-HPV subtypes included HPV-52, not HPV-18, which indicates variations in HR-HPV subtypes in different populations and races and warrants further research.

Analogies between HPV Behavior in Oral and Vaginal Cavity: Narrative Review on the Current Evidence in the Literature.

Human genital papilloma virus infection is the most prevalent sexually transmitted infection in the world. It is estimated that more than 75% of sexually active women contract this infection in their lifetime. In 80% of young women, there is the clearance of the virus within 18-24 months. In developed countries, oral squamous cell carcinoma (OSCC) is now the most frequent human papilloma virus (HPV)-related cancer, having surpassed cervical cancer, and it is predicted that by 2030 most squamous cell carcinomas will be the HPV-related rather than non-HPV-related form. However, there are currently no screening programs for oral cavity infection. While the natural history of HPV infection in the cervix is well known, in the oropharynx, it is not entirely clear. Furthermore, the prevalence of HPV in the oropharynx is unknown. Published studies have found wide-ranging prevalence estimates of 2.6% to 50%. There are also conflicting results regarding the percentage of women presenting the same type of HPV at two mucosal sites, ranging from 0 to 60%. Additionally, the question arises as to whether oral infection can develop from genital HPV infection, through oral and genital contact or by self-inoculation, or whether it should be considered an independent event. However, there is still no consensus on these topics, nor on the relationship between genital and oral HPV infections. Therefore, this literature review aims to evaluate whether there is evidence of a connection between oral and cervical HPV, while also endorsing the usefulness of the screening of oral infection in patients with high-risk cervical HPV as a means of facilitating the diagnosis and early management of HPV-related oral lesions. Finally, this review emphasizes the recommendation for the use of the HPV vaccines in primary prevention in the male and female population as the most effective means of successfully counteracting the increasing incidence of OSCC to date.

Anogenital warts-An update

With aprevalence of around 1% in the sexually active population anogenital warts are the most frequent human papillomavirus (HPV)-related disease. In the vast majority of cases the underlying cause of the infection is due to HPV types6 and11. The diagnosis can usually be clinically established but in certain cases a histopathological work-up can be useful. Buschke-Lowenstein tumors represent such a scenario. The current therapeutic armamentarium for anogenital warts ranges from surgical ablative procedures up to local immunomodulatory treatment. All procedures have different advantages and disadvantages and are relatively time-consuming and sometimes also unpleasant for the patient. Anogenital warts are also a possible expression of an incomplete immunological control of HPV. Therefore, it should be emphasized that for certain affected individuals, especially immunosuppressed patients, special attention should be given to ensuring that screening investigations for HPV-associated dysplasia is carried out according to the respective valid guidelines. The primary prophylaxis by vaccination of girls and boys prior to first HPV exposure represents a very effective option to drastically reduce the prevalence of anogenital warts and other HPV-related diseases.

Analysis of somatic mutations and key driving factors of cervical cancer progression.

We investigated the somatic mutations and key driving factors of cervical cancer by whole exome sequencing . We found 22,183 somatic single nucleotide variations (SNVs) in 52 paired samples. Somatic SNVs in cervical cancer were significantly higher than those in high-grade intraepithelial lesion and low-grade squamous intraepithelial lesion groups (P < 0.05). C → T/G accounted for 44.12% of base substitution. Copy number variation (false discovery rate < 0.05) was found in 57 chromosome regions. The three regions with significant differences between cervical cancer and non-cervical cancer groups were 1q21.1, 3q26.33, and 13q33.1, covering genes related to tumor proliferation, differentiation, and apoptosis. The frequency of human papillomavirus (HPV) insertion/integration and the number of "tCw" mutations in the cervical cancer group were significantly higher than those in the non-cervical cancer group (P < 0.05). The total number of mutations was positively correlated with the number of "tCw" mutations (R 2 = 0.7967). HPV insertion/integration (OR = 2.302, CI = 1.523-3.589, P = 0.0005), APOBEC enrichment (OR = 17.875, CI = 2.117-150.937, P = 0.001), and HLA-B*39 in HLA-I (OR = 6.435, CI = 0.823-48.919, P = 0.0042) were risk factors for cervical cancer, while HLA-DQB1*05 in HLA-II was a protective factor (OR = 0.426, CI = 0.197-0.910, P = 0.032). Conclusively, HPV insertion/integration, APOBEC mutagenesis, and HLA polymorphisms are high-risk factors for cervical cancer and may be causes of genome instability and somatic mutations. This study provides experimental data for revealing the molecular mechanism of cervical cancer.

Risk factors for human papillomavirus infection, cervical intraepithelial neoplasia and cervical cancer: an umbrella review and follow-up Mendelian randomisation studies

BackgroundPersistent infection by oncogenic human papillomavirus (HPV) is necessary although not sufficient for development of cervical cancer. Behavioural, environmental, or comorbid exposures may promote or protect against malignant transformation. Randomised evidence is limited and the validity of observational studies describing these associations remains unclear.MethodsIn this umbrella review, we searched electronic databases to identify meta-analyses of observational studies that evaluated risk or protective factors and the incidence of HPV infection, cervical intra-epithelial neoplasia (CIN), cervical cancer incidence and mortality. Following re-analysis, evidence was classified and graded based on a pre-defined set of statistical criteria. Quality was assessed with AMSTAR-2. For all associations graded as weak evidence or above, with available genetic instruments, we also performed Mendelian randomisation to examine the potential causal effect of modifiable exposures with risk of cervical cancer. The protocol for this study was registered on PROSPERO (CRD42020189995).ResultsWe included 171 meta-analyses of different exposure contrasts from 50 studies. Systemic immunosuppression including HIV infection (RR = 2.20 (95% CI = 1.89–2.54)) and immunosuppressive medications for inflammatory bowel disease (RR = 1.33 (95% CI = 1.27–1.39)), as well as an altered vaginal microbiome (RR = 1.59 (95% CI = 1.40–1.81)), were supported by strong and highly suggestive evidence for an association with HPV persistence, CIN or cervical cancer. Smoking, number of sexual partners and young age at first pregnancy were supported by highly suggestive evidence and confirmed by Mendelian randomisation.ConclusionsOur main analysis supported the association of systemic (HIV infection, immunosuppressive medications) and local immunosuppression (altered vaginal microbiota) with increased risk for worse HPV and cervical disease outcomes. Mendelian randomisation confirmed the link for genetically predicted lifetime smoking index, and young age at first pregnancy with cervical cancer, highlighting also that observational evidence can hide different inherent biases. This evidence strengthens the need for more frequent HPV screening in people with immunosuppression, further investigation of the vaginal microbiome and access to sexual health services.

Frequency of human papilloma virus (HPV) vaccination among female health care providers and reasons for non-immunization at a public sector hospital.

To assess the knowledge and attitude of female healthcare providers about human papilloma virus and its vaccination, to determine the frequency of respondents vaccinated against the virus, and to evaluate the reasons for non-immunisation. The cross-sectional study was conducted at the Jinnah Hospital, Lahore, Pakistan, from January 7 to February 20, 2022, and comprised female health care providers aged 20-60 years. Data was collected using a self-assessing questionnaire. Data was analysed using SPSS 22. Of the 250 individuals approached, 210(84%) took part in the study. The mean age was 28.9+/-7.99 years. Most of the subjects were house officers, medical officers or senior registrars 138(65.7%), and 126(60%) were unmarried. Overall, 170(81%) respondents knew about human papilloma virus and 174(82.9%) were aware of its link with cervical cancer. Even though 128(61%) respondents knew that the virus can be prevented by vaccine, 14(6.7%) were actually vaccinated. The vaccinated individuals had better knowledge about HPV, its spread, complications, its association with cervical cancer, prevention by vaccination and availability of vaccine compared to the non-vaccinated (p =0.05). The trend of human papilloma virus vaccination among female health professionals was found to be low, and lack of awareness and counselling was the leading cause.

Frequency of human papilomavirus and associated factors in gypsy and quilombola women

BackgroundThe prevalence of Human Papillomavirus (HPV) infection in the general population is widely known, however, there are still few studies related to this infection in minority groups, Thus, the objective is to analyze the frequency of human papillomavirus and associated factors in quilombola and gypsy women.MethodsCross-sectional research with 145 quilombola and gypsy women from Caxias, Maranhão. Two Pap smear collections were performed and a questionnaire with 46 questions was applied between January, 2020 and March, 2021. Descriptive analysis and Odds Ratio with 95% confidence interval were performed. The research was approved by the ethics committee.ResultsThere were 09 cases of atypia. The frequency of human papillomavirus was 41.37%, with a higher risk in quilombolas 55 (91.70%). Multiple infections were prevalent (53%) with high-risk genotypes 21 (35%). Types 16 and 18 together accounted for 42.85% of cases.ConclusionsThe frequency of human papillomavirus infection was higher than those recorded in the Northeast and Brazil, and therefore type 16 predominated. Due to limitations, the virus lineages and sublineages were not evaluated. Quilombola women had a higher rate of infection than gypsies.

Epidemiology of human papillomavirus on condyloma acuminatum in Shandong Province，China

ABSTRACT Condyloma acuminatum (CA) is a sexually transmitted disease (STD) caused by human papillomavirus (HPV) infection. It is important to study the prevalence and distribution of HPV genotypes before implementing the HPV vaccination program. Therefore, the aim of this study was to evaluate the epidemiological characteristics of CA cases and the distribution of HPV genotypes in Shandong Province, China. One-to-one questionnaire surveys were conducted on all patients diagnosed with CA in sentinel hospitals from Shandong Province, China. HPV genotypes were determined using the polymerase chain reaction (PCR)-reverse dot blot hybridization method. The study enrolled 1185 patients (870 males and 315 females) and found that CA patients are mainly males and sexually active people between the ages of 20 and 40. Recurrence occurred in 34.7% patients. Among the 880 CA patients who underwent HPV typing, the HPV test positivity rate was 91.4%. In these cases, low-risk (LR) HPV infection was predominant, with an infection rate of 91.3%, while high-risk (HR) HPV genotypes were found in 53.5% patients. The most frequent HPV genotypes encountered were HPV6 (57.8%), HPV11 (37.2%), HPV16 (13.7%), and HPV42 (10.3%). HPV6 and/or HPV11 are the main infections in all patients, and more than half of the patients are coinfected with HR-HPV. However, unlike other regions, HPV42 has a higher prevalence rate among CA patients in Shandong Province and is a nonvaccine HPV genotype. Therefore, regular HPV typing helps to understand the characteristics of specific genotypes and the choice of the best type for vaccine coverage.

Penile Squamous Cell Carcinomas in Sub-Saharan Africa and Europe: Differential Etiopathogenesis.

Penile squamous cell carcinomas (PSCC) are classified by the World Health Organization into two categories based on their relationship with the human papillomavirus (HPV): HPV-associated and HPV-independent. We compared a cohort of PSCC from Mozambique, a sub-Saharan country in southeast Africa with a high prevalence of HPV and HIV infection, and Spain, a country in southwestern Europe with a low prevalence of HPV and HIV, to study the distribution of the etiopathogenic categories of these tumors in both sites. A total of 79 PSCC were included in the study (28 from Mozambique and 51 from Spain). All cases underwent HPV-DNA polymerase chain reaction (PCR) testing, genotyping, and immunohistochemistry for p16 and p53. Any PSCC showing either p16 overexpression or HPV-DNA in PCR analysis was considered HPV-associated. Overall, 40/79 (50.6%) tumors were classified as HPV-associated and 39 (49.4%) as HPV-independent. The two sites showed marked differences: 25/28 (89.3%) tumors from Mozambique and only 15/51 (29.4%) from Spain were HPV-associated (p < 0.001). HPV16 was the most frequent HPV type identified in 64.0% (16/25) of the HPV-associated tumors from Mozambique, and 60.0% (9/15) from Spain (p = 0.8). On average, patients from Mozambique were almost two decades younger than those from Spain (mean age 50.9 ± 14.9 and 69.2 ± 13.3, respectively [p < 0.001]). In conclusion, significant etiopathogenic differences between PSCC in Mozambique and Spain were observed, with a remarkably high prevalence of HPV-associated tumors in Mozambique and a relatively low prevalence in Spain. These data may have important consequences for primary prevention of PSCC worldwide.

Evaluation Frequency of Human Papillomavirus and Its Related Genotypes in Women of the General Population Living in 11 Provinces of Iran.

Introduction Persistent infection with one of the most high-risk genotypes of human papillomavirus causes all cases of cervical cancer and a significant proportion of other genital cancers. The HPV virus, unlike any other infection that leads to cancer, is transmitted only through sexual intercourse and is less affected by the general changes and development in lifestyle and medical standards, so only vaccination and screening can prevent the HPV virus and cancers caused by it. Therefore, determining the prevalence and distribution of HPV genotypes are of utmost importance in screening strategies regarding cervical cancer and vaccination decisions against HPV that vary based on the geographical and cultural characteristics of the study area. As a result, this study aimed to determine the frequency of human papillomavirus and the distribution of this virus's genotypes in the general population of women living in 11 provinces of Iran. Materials and Methods This study is a community-based survey study. Sampling was done by the cluster sampling method. Women aged 15–59 years old from the general population living in 11 provinces of Iran were included in the study after considering the inclusion and exclusion criteria. Data were collected using a questionnaire and vaginal examination. The study was performed on 2562 vaginal specimens that were referred to the laboratory of the present study. HPV genome was detected by the nested MY-GP method and papillomavirus genotyping was performed using the PCR multiplex method to identify 19 papillomavirus genotypes. Results The general prevalence of HPV in the 11 provinces was obtained at 2.4% (108 out of 2562 people). The highest prevalence of the virus was in the age group of 25–34 years. The prevalence of HPV was statistically significant among different provinces. Hormozgan province with 22 cases (5.9%) had the highest and Isfahan province with 6 cases (2.2%) had the lowest incidence of HPV. The prevalence of high-risk HPV and medium-risk HPV is 3%, and the prevalence of low-risk HPV was estimated to be 2.1% of the total female population. Also, the highest prevalence was related to genotype 16. Conclusion According to the high prevalence of the HPV virus in young age groups in Iran, it is necessary to pay attention to screening programs to reduce the incidence of cervical cancer.

Prevalence and genotypes of cervical and vaginal HPV in female sex workers attending a Sexual Control Centre, North Area of Santiago, Chile

In Chile, cervical cancer is the second leading cause of death from malignancy in women. The main causal agent of cervical cancer is the human papillomavirus (HPV). Compared with the general population, sex workers (SW) are at increased risk of acquiring HPV. To analyze the prevalence and genotypes of cervical and vaginal HPV in female SW attending a Sexual Control Centre. A cross-sectional study was carried out on 97 women (19-70 years old). Two samples were taken per patient, one from exocervix and the other from vaginal walls. HPV DNA. was identified by polymerase chain reaction (PCR) and genotyping using specific probes for 32 types of HPV. The overall frequency of HPV was 45%, 41.2% in cervical carrier and 36.1% in vaginal carrier, 32% were co-infected, 63% of HPV were high-risk genotypes. The most frequent high-risk HPV was HPV 66 (12%), HPV 58 (9.3%), followed by HPV 16, HPV 59 and HPV 82 with the same frequency (8% each one). Thirty two (43%) of females were infected with multiple genotypes. HPV is frequent infection among SW. This is the first study in Chile on the prevalence and genotypes of HPV in sex workers.

Frequency of Human Papilloma Virus 16/18 Patients With Prostate Cancer by Polymerase Chain Reaction Method in Hospitals of Tabriz City, Iran

Background: Prostate cancer (PCa), as the fifth leading cause of death, is the second most common cancer diagnosis in men worldwide. Human papillomavirus (HPV) can potentially contribute to PCa development and chronic inflammation. HPV infection leads to malignant and benign lesions in the genital areas of men and women. The data on the role of HPV in PCa development is contradictory. Objective: This study aims to investigate the frequency of HPV in PCa samples in hospitals in Tabriz City, Iran. Methods: This study was conducted in a cross-sectional descriptive manner. Paraffin tissue blocks including 50 patients with primary prostate adenocarcinoma and 50 patients with benign prostatic hyperplasia (BPH) were selected from Tabriz hospitals. All samples were examined for the presence of HPV16/18 by the polymerase chain reaction (PCR) method. Findings: 3 out of 50 PCa patients are infected with HPV18. None of the benign and malignant prostate samples are infected with HPV 16. Therefore, in our study, no connection exists between HPV and PCa. The Mean±SD age of HPV positive samples was 61.33±11.50 years. Conclusion: The result of this research does not support the role of HPV in the development of PCa. Therefore, additional studies are necessary to clarify the possible role of HPV in prostate carcinogenesis.

The Frequency of Human Papillomaviruses and Epstein-Barr Virus in Colorectal Cancer Samples in Algeria

Background: Environmental factors may play a role in colon cancer. In this view, several studies investigated tumor samples for the presence of various viral DNA with conflicting results. The purpose of this study is to investigate the prevalence of Human papillomaviruses (HPVs) and Epstein-Barr virus (EBV) in patients with colorectal carcinomas. Materials and Methods: In this study, we collected 74 tumorous paraffin-embedded tissues (Mean±SD age: 66.3±14.98) from the Pathology Department of a hospital in AinTemouchent and laboratories of pathological anatomy in western Algeria. DNA from each tissue was extracted and the presence of HPV and EBV was investigated using PCR. Results: None of our samples were HPV or EBV positive, and we failed to find an obvious correlation between EBV and HPV infections and this type of cancer. Conclusion: The results suggested that EBV and HPV infection is not common in patients with colorectal cancer in our population. However, the findings merit more investigations on a large number of cases.

Взаимодействие вируса Эпштейна — Барр и вируса папилломы человека в канцерогенезе шейки матки. Возможности профилактики

Objective of the Review: To comprehensively analyse the potential role of Epstein-Barr virus (EBV) in development of cervical cancer. Key Points. Human papilloma virus (HPV) is a key causative factor of cervical cancer. However, there are a lot of data collected over the last two decades demonstrating that EBV has a role to play in this process; still, its contribution to development of cervical cancer has been studied poorly. This review describes the real-time published data on EBV and HPV co-infection in the genesis of cervical cancer, and the potential role of EBV in gynaecological cancer progression. Conclusion. EBV has an important role in the genesis and progression of some human malignancies including lymphoid tumours (both В- and Т-cell cancer) and carcinoma (nasopharyngeal and gastric cancer). The available data are indicative of potential cause-effect relations between EBV and cervical cancer pathogenesis. A frequent EBV and HPV co-infection in cervical cancer witnesses possible cancer-causing interaction between the two viruses. Thus, more in-depth studies are needed to find out the mechanisms underlying the EBV and HPV synergism and its clinical effects. Taking into account successful cervical cancer prevention with HPV vaccine and possible future EBV vaccination, the carcinogenesis mechanisms should be studied more thoroughly in order to improve the prevention of oncological diseases. Keywords: oncology, Epstein-Barr virus, human papilloma virus, co-infection, cervical cancer.

Evaluation of cervical smear screening and colposcopy assessments at a tertiary obstetrics and gynecology center in the blacksea region of Turkey: Retrospective chart-review of the last 5 years

Cervical cancer is the fourth most common cancer worldwide. Furthermore, it is the 9thmost common cancer in all ages and the 4thmost common in the 25-49 age group of women in Turkey. Given these significantly high figures, it is a significant public health problem. Therefore, this study aimed to evaluate the epidemiological characteristics of patients screened for Human papillomavirus (HPV) in a tertiary-care setting in Turkey. This is a retrospective chart review of patients admitted for clinical examinations and who underwent cervical cancer screening between 1 January 2017 and 1 March 2022. The data analyses included HPV positivity, genotype distribution, cytology analyses, colposcopy results, pathological diagnoses, and follow-up methods. A total of 529 cases were included, of whom 41.6% were HPV positive. The most frequent HPV types were HPV-16 (16.6%) and HPV-high risk (HR) (12.1%). Cytology analyses revealed atypical squamous cells of undetermined significance (ASC-US) in 17.8% and low-grade squamous intraepithelial lesions (LSIL) in 12.7%. The most common pathological finding was cervicitis in 23.1% (n=122), cervical intraepithelial neoplasia (CIN)-1 in 9.3% (n=49), CIN-3 in 4% (n=21), and CIN-2 in 3.8% (n=20) of patients. HPV-59 (p=0.027) and HPV-HR (p=0.003) genotypes were determined in higher proportions in patients with ≥ASC-US cytology, and HPV-16 was significantly higher among patients with ≥CIN-1 lesions. The HPV positivity rate was 41.6% among women admitted to our tertiary-care university hospital for gynecological assessments. Distribution differences in HPV genotypes, cytology assessments, and pathological diagnoses might reflect the population characteristics in different geographical regions from previous studies. Our results provide current data for HPV surveillance in the Turkish population.

Epidemiological Aspects of Age and Genotypical Occurrence of HPV Infection Among Females of Canton Sarajevo Over a 10-year Period.

Human papillomaviruses (HPV) are one of the most prevalent causes of cervical, anal, and oral cancer, and it is believed that nearly all sexually active males and females have been infected with HPV at some point in their lives. The purpose of this study is to highlight epidemiological characteristics of the age and genotypical incidence of HPV infection among females in Canton Sarajevo during a 10-year period. This cross-sectional study was conducted in the period between January 2012 and December 2021 at the medical institutions "Zavod za Ginekologiju, Perinatologiju i Neplodnost "Mehmedbašić" among females who were admitted for a routine gynaecological exam in Canton Sarajevo in Bosnia and Herzegovina. In total, 1517 patients who reported typical sexarche at 18.35±1.92, having one 721 (47.5%) sexual partner, regular use of contraceptive methods 820 (54.5%) with male condom 513 (62.6%) being the dominant choice of contraception and having gynacological hereditary oncological positive history 141 (9.3%), were included in the study from which 653 (43.05%) patients had positive HPV test and 864 (56.95%) had negative HPV results. HPV positive patients, 386 (59.1%) were infected either with one type of virus only, while 267 (40.9%) patients were infected with multiple virus strains where we have identified 166 virus strain combinations. Analysis showed that the patients infected by only one virus strain were one of next specific HPV viruses: 16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59, 66 and 68. HPV-16 was the predominately strain 16 (22.5%) identified among all the patients. Mean age of HPV positive patients was 33.38±7.85, ranging from 18 to 61 years. This study highlights the significance of the most frequent HPV high-risk strains (HPV-16, -18, -31.-33,-45,-52, and -58) among the Bosnia and Herzegovina population as one of the most common cancer-causing strains worldwide.

Anal human papillomavirus infection among men who have sex with men and transgender women living with and without HIV in Pakistan: findings from a cross-sectional study

ObjectivesThe aim of this study was to determine the prevalence of infection, genotypes and risk factors for human papillomavirus (HPV) among men who have sex with men (MSM) and transgender...

Detection of HPV and Human Chromosome Sites by Dual-Color Fluorescence In Situ Hybridization Reveals Recurrent HPV Integration Sites and Heterogeneity in Cervical Cancer.

Human papillomavirus (HPV) integration in the human genome is suggested to be an important cause of cervical cancer. With the development of sequencing technologies, an increasing number of integration “hotspots” have been identified. However, this HPV integration information was derived from analysis of whole cervical cancer tissue, and we know very little about the integration in different cancer cell subgroups or individual cancer cells. This study optimized the preparation of probes and provided a dual-color fluorescence in situ hybridization (FISH) method to detect HPV integration sites in paraffin-embedded cervical cancer samples. We used both HPV probes and site-specific probes: 3p14 (FHIT), 8q24 (MYC), 13q22 (KLF5/KLF12), 3q28 (TP63), and 5p15 (TERT). We detected HPV signals in 75 of the 96 cases of cervical cancer; 62 cases showed punctate signals, and 13 cases showed diffuse punctate signals. We identified 3p14 as a high-frequency HPV integration site in 4 cervical cancer cases. HPV integration at 8p14 occurred in 2 cases of cervical cancer. In the same cervical cancer tissue of sample No.1321, two distinct subgroups of cells were observed based on the HPV probe but showed no difference in cell and nucleus morphology. Our study provides a new method to investigate the frequent HPV integration sites in cervical cancer and reports the heterogeneity within cervical cancer from the perspective of HPV integration.