جستجوی مقالات مرتبط با کلیدواژه "human papillomavirus (hpv)" در نشریات گروه "پزشکی"
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Objective
Considering the prevalence of Human Papillomavirus (HPV) infection and the lack of HPV vaccination program in Iran among young women and the importance of quality of life and sexual performance in women, we decided to conduct a study to examine the relationship between HPV infection and sexual dysfunction and quality of life in Iranian women.
Materials and methodsIn this cohort study, 250 married women who infected with HPV were recruited via convinence sampling from colposcopy clinic of Arash women hospital (Tehran, Iran) from April 2020 to May 2022.They were evaluated concerning their sexual function in the domains of desire, arousal, lubrication, orgasm, satisfaction and pain with the female sexual function index (FSFI) questionnaire (the total FSFI score is calculated by the sum of the nineteen items). Sexual quality of life-female (SQOL-F) items (Likert-type scale with a cut-off of 65 points) were organized into four sub-scales: psychosexual feelings, sexual and relationship satisfaction, self-worthlessness, and sexual repression. All patients filled out the female sexual function index (FSFI) and sexual quality of life (SQOL) questionnaires. Variables were analysed via correlation coefficient and linear regression tests.
ResultsMean age and mean marriage duration were 38.5±4.5 and 12.2±7.2, respectively. There was a weak correlation between FSFI and SQOL (r=0.15, p=0.001).Time of marriage and genital warts were the predictors on the FSFI and SQOL.
ConclusionThe findings suggest that HPV infection can impair sexual function and quality of life. This research contributes valuable insights, especially considering the prevalence of HPV.
Keywords: Sexual Dysfunctions, Human Papillomavirus (HPV), Quality Of Life -
Background and Objectives
Cervical cancer global burden is highly skewed towards poor countries primarily due to lack of awareness, poor screening, and low uptake of prophylactic vaccines. The purpose of our study is to educate and raise awareness among young girls and women about the importance of cervical screening and HPV vaccination.
Materials and MethodsThe present study, conducted from January 2023 to December 2023, focused on students, teachers, housewives, and healthcare professionals in the Jammu region to assess their awareness of cervical cancer and the HPV vac- cine. HPV DNA testing was carried out using the Truenat Real-Time PCR method at Swastik Diagnostic Laboratory, Jammu.
ResultsKnowledge of cervical cancer, awareness of the HPV virus, and the vaccination status of women were assessed in survey. In the HPV screening test, out of 2,400 women, 106 tested positive for HPV. Among these 106 women, 19% had a high viral load (Ct < 20), 11% had a low viral load (25 ≤ Ct < 30), indicating a low relative concentration of HPV viruses, 40% had a medium viral load (20 ≤ Ct < 25), and 30% had very low viral loads (Ct ≥ 30).
ConclusionThese findings highlight the importance of routine cervical screenings, such as Pap smears and HPV tests, for the early detection of cervical cancer. There is an urgent need to implement cervical cancer screening and vaccination pro- grams in the Jammu region.
Keywords: Cervical Cancer, Human Papillomavirus (HPV), HPV Vaccine, Real Time Polymerase Chain Reaction, Vaccination -
Background
Cervical cancer stands out as one of the most prevalent gynecological cancers. Cervical cancer’s link to human papillomavirus (HPV) testing and recurrence is unclear despite previous studies. Investigating this relationship in Iranian patients is a pivotal aspect of this research.
MethodsThis study encompassed all cervical cancer patients referred to Firoozgar Hospital, Tehran, Iran, between 2016 and 2018. Utilizing a census method, the patients’ data, including their demographics and treatment details, were extracted from records. Follow-up samples were collected after vaginal cuff or cervix treatment (surgical or radiotherapy). A total of 124 patients were included in the study and categorized into two groups: Patients with recurrence and those without. INNO-LiPA standard test was employed to detect HPV presence. Comparative analysis of various variables, such as age at diagnosis, smoking history, multiple partners, sexually transmitted diseases history, body mass index, abnormal cervix, vaginal fornix involvement, cervical parameters involvement, tumor size, The International Federation of Gynaecology and Obstetrics (FIGO) staging, MRI staging, pathology, and treatment, was conducted between the recurrence and non-recurrence groups.
ResultsA total of 124 patients were included in the study, with an average age of 45.95±7.45 years. Most patients had an 18-25 kg/m2 body mass index. Based on MRI findings, the most common stage of cervical cancer was stage III, IIB. Squamous cell carcinoma pathology was the most prevalent, observed in 47 patients (37.9%). The most frequently performed treatment modality was radical trachelectomy and adjuvant chemoradiotherapy, accounting for 20 cases (16.1%). There were no significant differences in terms of age at disease diagnosis, smoking history, body mass index, histological type, and treatment type between patients with recurrent disease and those without recurrence. However, a significant difference was observed in terms of lymph node involvement. In addition, the HPV test was positive in 3 cases (2.4%) with recurrence and 11(8.9%) without. These results suggest no relationship between hrHPV (high-risk human papillomavirus) status and disease recurrence (P=0.196).
ConclusionThe result of our study showed no correlation between positive HPV test and cervical cancer recurrence. Consequently, HPV testing is not suitable as a reliable predictor for the recurrence of cervical cancer.
Keywords: Human Papillomavirus (HPV), Recurrence, Cervical Cancer, Chemotherapy, Radiotherapy -
Journal of Medical Microbiology and Infectious Diseases, Volume:11 Issue: 3, Summer 2023, PP 123 -127Introduction
Developing potent therapeutic vaccines against human papillomaviruses (HPVs) is crucial for the effective management of various HPV-associated cancers. DNA-based vaccines are attractive due to their safety, stability, and capacity to elicit a targeted immune response against specific antigens. Heat shock proteins (HSPs) can enhance the efficacy of DNA vaccines when used as adjuvants. In this study, we created a recombinant DNA molecule by fusing the HPV16 e7 gene with either the hspB1 or hsp27 gene and assessed its expression in a eukaryotic cell line.
MethodsInitially, we constructed a recombinant eukaryotic expression vector by inserting the hsp27-e7 fusion gene into the pcDNA3.1 (-) vector. The concentration and purity of the sample were evaluated using NanoDrop spectrophotometry. We cultured human embryonic kidney 293T (HEK-293T) cells in RPMI 1640 medium and transfected them with the pcDNA3.1-hsp27-e7 construct using Lipofectamine 2000 transfection reagent. After 48 hours, we assessed the expression of the Hsp27-E7 fusion protein by western blotting using an anti-E7 monoclonal antibody.
ResultsWe successfully subcloned the hsp27-e7 fusion gene into the pcDNA3.1 (-) vector, and enzymatic digestion confirmed a distinct ~975 bp band on an agarose gel. The concentration and purity of the recombinant DNA vector in a 10 mL culture were measured to be 210 ng/µL and 1.86, respectively. Furthermore, the expression of the Hsp27-E7 fusion protein in HEK-293T cells was confirmed by Western blot analysis, which detected a distinct band of approximately 38 kDa.
ConclusionOur in vitro findings demonstrate successful expression of the DNA construct encoding the hsp27-e7 gene, which can be utilized as a DNA vaccine for future in vivo investigations.
Keywords: Human papillomavirus (HPV), E7, Small heat shock protein, DNA-based vaccine, Recombinant DNA construct, Eukaryotic cells -
Background and Aims
Human papillomavirus (HPV) is considered to be the important viral agent associated with several human cancers, the most important of which is cervical cancer. Today, the role of this virus in gastrointestinal cancers, including gastric cancer (GC), has also been considered. This study performed to clarify the possible association of HPV and the occurrence of GC in Ardabil province, Northwest Iran, which is a high-risk area.
Materials and MethodsThe study involved 140 paraffin-embedded specimens of gastric tissue that divided into two groups based on the pathological diagnosis: 70 patients with GC as the case group and 70 samples without a diagnosed tumor in gastric tissue as control. The nested polymerase chain reaction (Nested-PCR) method was carried out to detect the HPV genome in paraffin embedded gastric tissue samples. Finally, samples that were positive for the presence of the HPV genome were sequenced to determine the type of virus.
ResultsHPV genome was detected in 33 (47.14%) of 70 gastric cancer samples and 4.28% (3/70) of samples without gastric cancer. In case and control groups 97% and 67% of HPV positive samples were over 40 years old, respectively and the number of men was more than women. Ultimately, HPV-16 and HPV-18 were detected in PCR positive samples by sequence analysis.
ConclusionBased on our founding, the infection rate of HPV in patients with gastric cancer was significantly higher than that in non-cancerous samples of gastric tissue. Moreover, high-risk types of HPV (16, 18) were detected in all positive samples. Therefore, the results of this investigation suggest that HPV can be one of the possible risk factors for the occurrence of gastric cancer in Ardabil province.
Keywords: Human papillomavirus (HPV), Gastric Cancer (GC), Ardabil, 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.
ObjectiveThis study aims to investigate the frequency of HPV in PCa samples in hospitals in Tabriz City, Iran.
MethodsThis 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.
Findings3 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.
ConclusionThe 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.
Keywords: Prostate cancer (PCa), Human papillomavirus (HPV), HPV16, HPV18, Carcinoma, Benign prostatic hyperplasia (BPH) -
Background
Colorectal cancer (CRC) is the third common cause of malignancy in Iran, and its incidence rate has been raised due to an increase in individual and environmental risk factors.
ObjectivesThe present study aimed to define the role of human papillomavirus (HPV) infection in CRC, then by drawing a phylogenetic tree, we aimed to analysis the sequences of isolated HPVs, and finally determine the viral genome physical status for HPV-16.
MethodsA nested-PCR (nPCR), direct sequencing, and INNO-LiPA HPV genotyping assay were carried out for HPV detection, and a quantitative real-time PCR assay (qRT-PCR) was conducted for the physical status of the viral genome.
ResultsAmong 157 subsets, there were 66 cases and 91 controls. Moreover, 5.7% (9/157) were HPV positive by nPCR, among whom 9.1% (6/66) were cases and 3.3% (3/91) were control groups (P = 0.750). The qRT-PCR analysis showed three forms of integrated, episomal, and mixed forms in our three HPV-16 strains. A higher rate of HPV infection was detected in the CRC cases; however, it was not statistically significant.
ConclusionsAlthough there were limited positive results, higher ages (> 65) were related to HPV involvement and CRC outcome. Furthermore, 9.1% of the CRC cases were infected with HPVs. The HPV-16 genome integration is observed in high-grade cancer cases with severe malignancy in CRC patients.
Keywords: Viral Infection, Oncogenic Viruses, Integration, Human Papillomavirus (HPV), Colorectal Cancer (CRC) -
International Journal of Molecular and Cellular Medicine, Volume:11 Issue: 41, Winter 2022, PP 64 -77
Human papillomavirus (HPV) is recognized as a most important risk factor in oral cavity cancer and pre-malignant lesions; however, etiological association of concomitant infection with other oncogenic viruses as a co-factor has not been definitively proven. The present study aimed to determine the prevalence of co-infection with HPV, Epstein–Barr virus (EBV) and Merkel Cell PolyomaVirus (MCPyV) in oral cavity lesions in Iranian patients. One hundred and fourteen oral cavity samples, including 33 oral squamous cell carcinoma, 28 oral lichen planus, 16 oral epithelial dysplasia and 37 oral irritation fibromas were analyzed for the HPV, EBV and MCPyV infection by quantitative real-time PCR. According to histological features 32.5% and 28.9% of cases were oral irritation fibroma and oral squamous cell carcinoma, respectively. Infection with at least two viruses was detected in 21.1% of patients. In this group, co-infection with HPV/EBV was identified in 37.5% of cases, HPV/MCPyV in 29.2%, EBV/MCPyV in 12.5%, and HPV/EBV/MCPyV in 20.8%. There was no statistically significant difference between multiple infections and anatomical locations of cancer. The prevalence of triple viral infection (HPV/EBV/MCPyV) in well differentiated tumors was higher than EBV or MCPyV single infection. This study revealed that co-infection of HPV, EBV and MCPyV can be detected in both malignant and non-malignant oral cavity tissues, and co-infection with all three viruses in well differentiated tumors can be shown as a synergistic hypothesis of the pathogenic role of these viruses in oral malignant transformation.
Keywords: Co-infection, human papillomavirus (HPV), Merkel cell polyomavirus (MCPyV), Epstein–Barr virus (EBV), oral lesions -
Journal of Obstetrics, Gynecology and Cancer Research, Volume:7 Issue: 5, Sep - Oct 2022, PP 405 -414Background & Objective
Persistent infection with some types of Human papillomavirus (HPV), which are high-risk genotypes, can lead the patients toward cervical cancer and, finally, death. Recent studies showed HPV co-infection with non-HPV sexually transmitted infections (non-HPV STIs) could increase the persistency rate of HPV infections. This study aimed to estimate the prevalence of STIs and assess the association of HPV/non-HPV STIs co-infection on cervical cell changes based on cytological findings.
Materials & MethodsIn this cross-sectional study, in addition to the routine cervical screening, including HPV testing and cytological assessment, non-HPV STI testing was performed on 1065 Iranian women. To assess the HPV and non-HPV STIs, commercial kits were used.
Results964 (90.5%) women had normal cytology (NILM) results. The overall prevalence of HPV and non-HPV STIs were 39.1% and 68.5%, respectively. HPV-53 (6.5%), -16 (6.1%) and -31 (5.5%) were found as the most prevalent genotypes. Ureaplasma Parvum (UP) (42.7%), Group B Streptococcus (GBS) (23.7%), Candida Species (CS) (23.6%), Ureaplasma Urealyticum (UU) (9.6%), and Mycoplasma Hominis (MH) (7.1%) were found as the most prevalent non-HPV STIs. The co-infection of HPV with GBS played an important role in developing the cervical lesion (P<0.05).
ConclusionIn the present study, the STIs, including HPV, UP, GBS, CS, UU, and MH, were prevalent among the study participant, and it was found that the HPV/GBS co-infection played a significant role in the development of LSIL or worse cytological grades. To clarify this issue, further studies will be conducted.
Keywords: Cervical Lesions, Co-infections, Group B Streptococcus (GBS), Human Papillomavirus (HPV), Sexually Transmitted Infection (STIs) -
Introduction
Focal epithelial hyperplasia (FEH), also known as Heck’s disease, is a human papilloma virus-induced proliferation of epithelial cells, which causes asymptomatic lesions in the oral mucosa. Heck’s disease is more prevalent among children or in a family. Despite the self-limitation of lesions, they may progress or cause esthetical and functional discomforts. Hence, early diagnosis is necessary.
Case PresentationA middle-aged man with peripheral multiple soft, elevated, sessile, smooth, lobulated surface and nodular lesions in his right buccal mucosa was referred. The dimensions of the lesions varied from 5 to 25 mm. Through clinical and histopathological examinations, Heck’s disease was diagnosed. The diode laser (wavelengths of 980 nm), 1-W power using continuous waves) was applied serially (in 2 sessions with a 1-week interval) for surgically removing the lesions. The patient was followed up for 6 months with no lesion recurrence, and gradual healing was observed.
ConclusionThe laser is an effective treatment with no scar remaining after the procedure and brings satisfaction to patients.
Keywords: Focal epithelial hyperplasia, Heck’s disease, Human papillomavirus (HPV), Diode laser -
Background and Objectives
The human papillomavirus (HPV) is associated with more than 70% of the cervical neoplasm. The current study aims to evaluate the distribution of HPV genotypes in suspected women cytological specimens from Tehran, Iran.
Materials and MethodsIn the current cross-sectional study, HPV genotype prevalence was investigated in 433 subject women. DNA extraction was performed by High Pure Viral Nucleic Acid kit. A semi-automatically hybriSpot 24™ (HS24) setting was used for HPV typing and data interpreted by hybriSoft™ software according to instructions.
ResultsPathologic data showed 181 (41.8%) had non-malignant lesions, 212 (49%) had inflammation and 40 (9.2%) reported LSIL in primary Pap-smear result. HPV was found in 143 (33%) specimens and the most comment high-risk and low-risk HPV types were HPV-16 and -6, respectively. Also, 62 (43%) were co-infected with multiple genotypes includes, 34 (24%) cases had co-infection with two HPV types, 17 (12%) cases had co-infection with three HPV types, 6 (4%) cases had co-infection with four HPV types and 5 (3%) cases had co-infection with five HPV types. There was statistically different domination on high-risk genotype in most of the co-infected samples (p<0.01).
ConclusionCurrent study indicates that the lesion pathology assessment was significantly associated with the HPV infection (p<0.01). Furthermore, the age group assessment shows that most of the HPV positive cases were 21 to 40 (p<0.01). The HPV infection prevalence in the current study was 33% and the most frequently reported high-risk and low-risk HPV types were 16 and 6, respectively.
Keywords: Human papillomavirus (HPV), Papillomavirus infections, Uterine cervical neoplasms, In situ hybridization, Co-infection -
Journal of Obstetrics, Gynecology and Cancer Research, Volume:7 Issue: 3, May - Jun 2022, PP 151 -157Background & Objective
Recent advances in molecular testing for human papillomavirus (HPV) has increased the accuracy of cervical screening programs. This study intended to estimate the diagnostic value of high-risk (HR) HPV DNA- and E6/E7 mRNA-based methods for triage of Iranian women with abnormal cytological results regarding the histopathological cut-off.
Materials & MethodsIn this cross-sectional study, 360 non-pregnant women (≥ 21 years) who had faced abnormal cytological findings (ASC-US and LSIL) were enrolled and referred for further diagnostic tests. The INNO-LiPA® HPV Genotyping Extra-II and Aptima HPV assay kits were used in DNA- and E6/E7 mRNA-based methods for detection of HR-HPV. Regarding the CIN-2+ histopathological cut-off, the diagnostic value of each molecular-based assay was calculated.
ResultsAmong the study participants, 260 cases had ASC-US, and 100 had LSIL. The overall positivity rate for DNA- and mRNA-based methods was 74.4% (268/360) and 64.2% (231/360), respectively. Fifty-nine (16.4%) individuals showed CIN-2+. The DNA-based test showed higher sensitivity (100%) than the mRNA-based method (93.2%), while the mRNA-based method revealed greater clinical specificity (41.5%) compared to the DNA-based test (30.6%).
ConclusionOur results revealed appropriate clinical sensitivity of the molecular-based methods for triage of Iranian women with abnormal cytological results; however, the mRNA-based method showed greater specificity for detection of CIN-2+.
Keywords: ASC-US, Cervical Intraepithelial Neoplasia (CIN), Human Papillomavirus (HPV), LSIL, Molecular-based methods -
Background
Prostate cancer is one of the most frequent cancers in men, with several risk factors, including infection. In this study, we aimed to assess the association of human papillomavirus (HPV) infection with prostate cancer risk and aggressiveness.
MethodsThis case-control study was performed on a total of 70 archival formalin-fixed paraffin-embedded (FFPE) prostatic tissue blocks. Among them, 35 histopathologically confirmed prostate cancer tissues and 35 benign prostate hyperplasia (BPH) samples were enrolled as cases and controls, respectively. The specimens were examined by the polymerase chain reaction (PCR) and in situ hybridization for the detection of HPV DNA of both low-risk (6, 11) and high-risk (16, 18) types.
ResultsThe primary results of PCR for the L1 region revealed HPV infection in 34.3% and 8.6% of the cases and controls, respectively (P = 0.018). The HPV typing using hybridization revealed a significant difference between the two groups in terms of infection with HPV types 16 and 18 (P = 0.003, P = 0.028, respectively). The findings showed no significant association of HPV infection with age and prostate specific antigen (PSA) level of the patients. In addition, no significant association was found between infection with HPV and Gleason score (GS).
ConclusionsOur findings indicated that HPV infection, especially with high-risk types 16 and 18, has a significant association with prostatic carcinogenesis. In addition, although patients with GS = 7 showed higher rates of infection with HPV, we did not observe any statistical association between HPV infection and GS.
Keywords: Prostate Cancer, Human Papillomavirus (HPV), Typing Polymerase Chain Reaction (PCR), Hybridization Gleason Score -
Background
The purpose of this study was to investigate the association between IL-4 -589C>T, IL-6 -174G>C, IL-1β -31T>C and IL-1β -511C>T genes polymorphism with high concentrations of human papillomavirus (HPV), and the influence of gene-gene interactions on persistent human papillomavirus infection.
MethodsIn this study, 101 infected women with high HPV viral load and 93 healthy women were involved in a case-control study. Genotyping of SNPs for IL-4 -589C>T, IL-6 -174G>C, IL-1β -31T>C and IL-1β -511C>T genes was carried out by allele-specific PCR. Quantitative analysis of HPV-DNA was performed by Amplisens HPV HCR genotype-titer software. Gene-gene interactions were analyzed using multifactor dimensionality reduction (MDR) algorithm. Haplotype interactions were analyzed by HaploView 4.2 tool.
ResultsThe study of single individual SNPs in promoters of IL-4 -589C>T, IL-6 -174G>C and IL-1β -31T>C genes did not reveal statistically significant difference in genotypes and allele frequencies among women with high HPV viral load and control group. The frequency of -511T allele and TT genotype of the IL-1β gene in case group was significantly higher than the one in control group (OR=1.71, p=0.012 and OR=2.02, p=0.046, respectively). Haplotype analysis revealed that -511C/-31T haplotype for IL-1β gene is significantly less common among women with high HPV viral load (p=0.018).
ConclusionThe haplotype -511C/-31T for IL-1β gene is associated with a protective effect against increasing HPV viral load. The frequencies of -511T allele and -511TT genotype of the IL-1β -511C>T were significantly higher among women with HPV in comparison to control group.
Keywords: Cytokines, Human papillomavirus (HPV), Inflammation, Polymorphism, Viralload -
Background
Human papillomavirus (HPV) has been found as the most considerable causes of cervical cancer. Recently, several molecular methods have been introduced to increase the accuracy of the screening programs and decrease the mortality rate. Among these methods, mRNA-based methods have more advantages as they assess the expression level of HPV E6 and E7 oncogenic mRNAs. This study aimed to evaluate the results of HPV RNA- and DNA-based methods among Iranian women population with normal cytology results.
MethodsOverall, 4640 women were enrolled referred to the Gynecology Oncology Ward of Vali-e-Asr Hospital, private and academic clinics, Tehran, Iran from Jan 2016 to Apr 2018. To assess the HPV-DNA infection INNO-LiPA® HPV Genotyping Extra-II kit was used. For HPV-RNA assessment, Aptima HPV Assay and in house HPV-RNA genotyping methods were applied.
ResultsThe positivity rates of HPV infection according to DNA- and RNA-based methods were 18.0% and 11.2%, respectively (P<0.001). The positive predictive value, negative predictive value, specificity and sensitivity of DNA-based method in contrast with RNA-based method were 59.2% (56.6-61.6), 99.4% (99.0-99.6), 91.7% (90.8-92.6) and 95.2% (93.0-96.9) respectively.
ConclusionAt the present study for prognosis of cervical cancer, RNA-based method seemed to be more specific in contrast to DNA-based method. Patient follow up and further studies will be conducted in order to clarify the clinical sensitivity and specificity of the two methods.
Keywords: Cervical cancer, Human Papillomavirus (HPV), Intraepithelial lesion, Malignancy -
Background
Esophageal cancer (EC) is a common cancer worldwide. Despite epidemiological studies, the etiology of EC is undetected. It was recommended that tobacco, alcohol, food carcinogens, and infectious agents may be involved in the pathogenesis of EC. Accumulating evidence suggests the role of human papillomavirus (HPV) on EC.
ObjectivesThe aim of this study was to evaluate the prevalence and association of HPV with EC.
MethodsIn this case-control study, 86 samples of formalin-fixed and paraffin-embedded esophageal tissues were gathered from the pathology laboratory, Imam Khomeini Hospital, Urmia, West Azerbaijan, Iran. A total of 43 samples were esophageal cancers (cases) and 43 samples were esophageal non-cancerous tissues (controls). The tissues were sectioned and deparaffinized, and deoxyribonucleic acid was extracted. The polymerase chain reaction test was conducted to detect HPV, using general (GP5+/GP6+) and type-specific (E6/E7) primers. HPV types were confirmed by sequencing. The data were analyzed by the SPSS software.
ResultsOut of 86 samples, 23 (26.74%) were positive for HPV (15 cases, and 8 controls). By type-specific primers, high-risk HPVs were detected in the cases (3 HPV-16, 10 HPV-18, 1 HPV-31, and 1 HPV-33) and the controls (6 HPV-18, 1 HPV-31, and 1 HPV-33). No significant association was observed between HPV and EC (P = 0.078).
ConclusionsAlthough no significant association was observed between HPV and EC, high-risk HPV genotypes were found in esophageal cancers more than non-cancerous esophageal tissues. To confirm this result, more studies should be carried out in other populations.
Keywords: Human Papillomavirus (HPV), Esophageal Cancer, Esophageal Squamous Cell Carcinoma (ESCC) -
Background & ObjectiveHuman papillomavirus (HPV) is the main cause of genital warts and some anogenital cancers in male and female subjects which is commonly transmitted by sexual contacts. The objective of this cross-sectional study was to examine the prevalence of HPV genotypes in 10,266 Iranian male and female population, according to their age.MethodsSamples were collected from the penile and anal sites of male subjects and the vagina and cervix of female subjects in a time period between 2011 and 2016. HPV DNA was detected in PCR using the MY09 and MY11 primers, and the INNO-LiPA assay was applied for HPV genotyping. To investigate the relevance of HPV infection and age, the samples were classified into 4 age groups (13-29, 30-44, 45-59, and 60-74).ResultsTotally, the most common low risk HPV genotypes detected in the studied male and female subjects were HPV-6 (77.7% and 43.3%) and HPV-11 (13.7% and 11.4%), and more frequent high risk HPV genotypes were HPV-16 (5.5% and 16.6%) and HPV-52 (3.2% and 9.6%), respectively. High burden of the HPV infection was observed at ranges of 30 and 44 years (51.8%) with a peak at ranges between 30 and 32 years. No considerable statistically significant correlation was found between HPV infection and age (P=1).ConclusionThis study gave an epidemiological overview of circulating HPV genotypes in Iranian population to develop future vaccination policies, though the findings of prevalent HPV genotypes in female subjects were inconsistent with the previous studies reported in Iran.Keywords: Human Papillomavirus (HPV), Age distribution, Genotype distribution, Iran, INNO LiPA HPV genotyping
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BackgroundHuman papillomavirus (HPV) can infect the epithelium of the esophagus, but so far there is no reliable and comprehensive evidence about the prevalence and association of HPV with esophageal cancer in Iran, as high incidence region. This study aimed to evaluate the prevalence and association of HPV with esophageal squamous cell carcinoma (ESCC) in Iran.MethodsRelevant English and Persian articles published up to Aug 2017 and indexed in databases were reviewed. Frequency of HPV genotypes in ESCC cases and controls was surveyed according to regions of Iran. Data were meta-analyzed with random effects models using Comprehensive Meta-Analysis software.ResultsOverall, 14 studies were eligible including 1444 samples (1062 ESCC cases and 382 controls). HPV was positive in 269 (25.32%) of 1062 ESCC cases and in 65 (17.01%) of 382 controls. Total prevalence of HPV in both groups was estimated 0.256 (95%CI, 0.208%-0.310%). The prevalence of HPV-16 and HPV-18 was estimated 0.121 (95%CI: 0.087-0.183) and 0.046 (95%CI; 0.023-0.088), respectively. The difference in HPV prevalence in different regions of Iran was statistically significant (Q=18.20, df =4, P=0.001). In 6 case-control studies, the pooled odds ratio was estimated 1.99 (95%CI; 0.916-4.315).ConclusionHigh-risk HPVs were observed in ESCC cases and controls from different regions of Iran. The odds ratio indicates that the HPV infection in ESCC cases was approximately 2 fold more than the controls. More case-control studies in other populations with larger sample size are necessary.Keywords: Human papillomavirus (HPV), Esophageal cancer, Esophageal squamous cell carcinoma (ESCC)
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مقدمه
آملوبلاستوما از شایع ترین تومورهای ادونتوژنیک می باشد. از فاکتورهای موثر در بروز این بیماری، ویروس پاپیلومای انسانی (HPV) است. مطالعه حاضر، با هدف بررسی حضور HPV در نمونه های تومور آملوبلاستومای فکین با استفاده از روش PCR انجام شد.
مواد و روش هادر این مطالعه، 77 بلوک پارافینی مربوط به آملوبلاستوما از آرشیو بخش پاتولوژی دانشکده دندانپزشکی مشهد و بیمارستان قائم مشهد جمع آوری و پس از دپارافینیزه کردن نمونه ها، DNA آنها با استفاده از Genomic DNA extraction mini YTA kitبراساس دستور کارخانه سازنده استخراج گردید. پس از انجام فرآیند PCR، حضور HPV در آنها مورد بررسی قرار گرفت. داده ها با استفاده از نرم افزار SPSSنسخه 16، آزمون کای دو و رگرسیون لوجستیک مورد تجزیه و تحلیل قرار گرفتند.
یافته هااز مجموع 77 ضایعه مورد بررسی، 20 مورد فولیکولار، 4 مورد اکانتوماتوز، 3 مورد بازال سل، 8 مورد دسموبلاستیک، 17 مورد یونی سیستیک و 25 مورد پلکسی فرم بود. در مجموع 5 مورد (5/6 درصد) از آنها از نظر HPV مثبت بود. بدین صورت که در نوع فولیکولار یک مورد، در نوع یونی سیستیک دو مورد و در نوع پلکسی فرم نیز دو مورد از نظر HPV مثبت شده بود.
نتیجه گیریبا توجه به فراوانی کم ویروس پاپیلومای انسانی در ضایعات مورد بررسی، نمی توان این گونه نتیجه گرفت که این ویروس در اتیولوژی و پاتوژنز این دسته از ضایعات نقش داشته باشد و جهت اظهار نظر دقیق تر به مطالعاتبا حجم نمونه بزرگ تر نیاز است.
کلید واژگان: ویروس پاپیلومای انسانی, آملوبلاستوما, واکنش زنجیره ای پلی مراز (PCR)IntroductionAmeloblastoma is a prevalent odontogenic maxillofacial tumor. Human papillomavirus (HPV) is considered to be one of the main risk factors for ameloblastoma. The current research aimed to investigate the presence of HPV in the ameloblastoma of jaw samples using the polymerase chain reaction (PCR).
Materials and MethodsThis study was conducted on 77 formalin-fixed and paraffin-embedded tissue blocks, which were obtained from the archives of the Department of Pathology at Mashhad Dentistry School and Ghaem Hospital in Mashhad, Iran. Deparaffinization and DNA extraction in the samples were performed in accordance with the instructions of the YTA genomic DNA extraction mini kit. After PCR, the presence of HPV was evaluated in the samples. Data analysis was performed in SPSS version 16 using descriptive statistic (frequency distribution tables and charts), Chi-square, and logistic regression.
ResultsAmong 77 lesions, 20 cases were follicular, four cases were acanthomatous, three cases were basal cells, eight cases were desmoblastic, 17 cases were unicystic, and 25 cases were plexiform. Moreover, five samples (6.5%) were positive for HPV. HPV was detected in one follicular case, two unicystic cases, and two plexiform cases.
ConclusionConsidering the low prevalence of HPV in the examined lesions, it could not be concluded that the virus was involved in the etiology and pathogenesis of the lesions. Therefore, further investigations must be conducted on larger sample sizes for more accurate results
Keywords: Human Papillomavirus (HPV), Ameloblastoma, Polymerase Chain Reaction (PCR) -
The menace of cervical cancer has reached an alarming rate. There are more than 450.000 cases of cervical cancer yearly, with mortality rate of about 50%. This deadly cancer is caused by human papillomavirus (HPV), mainly subtypes 16 and 18. The pharmaceutical industry has produced drug for combating the virus, known as SAHA (suberoylanilide hydroxamic acid). It inhibits class II HDAC Homo sapiens (HDACi). The utilization of SAHA has some side effects, one of which is bone loss. Thus, searching for viable alternatives aside SAHA is inevitable. The objective of this research is to investigate the molecular interaction of selected Indonesian natural products with class II HDAC Homo sapiens. LigX tool in MOE 2008.10 was used as an instrument to investigate the molecular interaction. Then, computer aided drug discovery and development (CADDD) approach involving molecular docking and dynamics methods was utilized to screen the natural products library. In the end, we found that herbaric acid could act as a potential drug candidate for cervical cancer.Keywords: Cervical cancer, Human papillomavirus (HPV), Indonesian natural products, HDAC, HDACi, CADDD approach, Herbaric acid
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