PubMed Kapalı Erişimli Yayınlar

Permanent URI for this collectionhttps://hdl.handle.net/11727/10764

Browse

Filters

2019 - 201912020 - 20222

Settings

Subject: search.filters.subject.human papillomavirus

Search Results

Now showing 1 - 3 of 3
  • No Thumbnail Available
    Item
    The prevalence and distribution of human papillomavirus in 4267 Turkish women with or without cervical lesions: A hospital-based study
    (2022) Altay-Kocak, Aylin; Kazanci, Ferah; Dogu-Tok, Canan; Onan, Anil; Erdem, Ozlem; Ozkan, Secil; Bozdayi, Gulendam; 0000-0002-0451-0142; 35676203; AAI-8012-2021
    In the present study, it was aimed to screen the genotypes of human papillomavirus (HPV) retrospectively in women with gynecological symptoms who were admitted to a tertiary care university hospital in Ankara, Turkey. A total of 4267 cervical swab samples of women aged 18-79 years were sent to Medical Virology Laboratory from January 2017 to November 2020. Nucleic acid extraction and amplification of samples were done by an automated system. The test can detect 14 high-risk HPV (HR-HPV) types in a single analysis that performs a real-time polymerase chain reaction, by providing individual results on the highest-risk genotypes HPV 16 and HPV 18 and pooled results on other high-risk genotypes (OHR-HPV) (31, 33, 35, 39, 45, 51, 52, 56, 58, 59, 66, 68). HPV DNA positivity was detected in 14.2% (605/4267) of the samples. HPV type 16 and type 18 were detected in 2.4% and 0.7% of the samples, respectively. OHR-HPV types were found in 8.8% of the samples. Of the 1.9% and 0.4% samples had mixed types with type 16+ OHR-HPV and type 18+ OHR-HPV, respectively. The results of this study presented the rates of HR-HPV genotypes of a university hospital in Ankara, over a 4-year period. It was observed that the positivity rate of type 18 is decreasing and some OHR-HPV types are increasing. HPV vaccination is not in the national immunization program in Turkey yet, however, HPV vaccines are available and the vaccination rates for women are increasing.
  • No Thumbnail Available
    Item
    Detection of HPV DNA in Esophageal Lesions: a Cross-Sectional Study
    (2020) Dinc, Bedia; Altay-Kocak, Aylin; Aydog, Gulden; Kuran, Sedef; Akoglu, Musa; Ozkan, Secil; Bozdayi, Gulendam; 32162873
    Background: Several studies have documented human papillomavirus (HPV) in extra-cervical tumors. We aimed to detect HPV type 16 and HPV other than type 16 (OT-16) DNA in esophageal papilloma and esophagus squamous cell carcinoma (ESCC) samples and to compare clinicopathological features of HPV positive and negative patients. Methods: Materials were obtained from a tertiary care public hospital and studied in an university hospital for this cross-sectional study. Seventy-six tissue samples (50 papilloma and 26 ESCC) were included. After deparaf-finization by xylene and DNA extraction by phenol chloroform-isoamyl-alcohol, 76 samples were studied with a G6PDH control kit. Forty-four papilloma and 21 ESCC samples with enough tissues were studied for HPV DNA. HPV OT-16 DNA and HPV type 16 were detected by real time-polymerase chain reaction. Results: Twelve (27.3%) and one (2.3%) of the papilloma samples were HPV type 16 and other than type 16 positive, respectively. Eleven (52.4%) and one (4.8%) of ESCC samples were HPV type 16 and mixed type positive, respectively. Conclusions: We suggest that HPV infection is common in esophageal papilloma and ESCC. Due to the wellknown association of HPV with premalignant and malignant conditions, follow-up of these patients accompanied by HPV should be implemented.
  • No Thumbnail Available
    Item
    Squamous cell carcinoma of the penis: a clinicopathological study from a population with late circumcision
    (2019) Baydar, Dilek Ertoy; Akkaya, Hampar; Apa, Duygu Dusmez; Bal, Nebil; Demirsam, Asli; Gucluer, Berrin; Nese, Nalan; Sari, Aysegul Akder; Kirdar, Sevin; Akdogan, Bulent; Karabulut, Erdem; 31658325
    Squamous cell carcinoma (SCC) of the penis has been subject to only a few studies in populations where late childhood circumcision is performed. To asses clinicopathological features and human papillomavirus (HPV) status of penile SCC in men with late circumcision, eight institutions in the country volunteered to collaborate and 15 cases of penile SCC were collected from their pathology archives. The presence and genotype of HPV were determined in addition to clinicopathological features of the tumors. Findings were correlated with disease outcome. The mean age of the patients evaluated was 66.5 years. Histological subtypes were usual SCC (6/15), papillary (2/15), mixed (2/15), basaloid (2/15), acantholytic (1/15), pseudohyperplastic (1/15), and warty-basaloid (1/15) carcinomas. HPV was identified in 33.3% of samples; HPV16 was detected in 60% of positive cases and was associated with basaloid and/or warty morphology. Cause-specific 1-year and 2-year survivals were 76.9% and 54.5%, respectively. The usual subtype and nodal metastasis were associated with worse outcome (p=0.045 and p=0.047, respectively). As a conclusion, our results suggest an inclination for penile SCC to develop at a later age in a population with late circumcision than the patients from the regions of high penile cancer incidence. These men seem to have less frequent HPV association and their outcome appears poorer than other populations, although reaching substantial provision is not possible due to our limited case number.