Search results for "HPV"
showing 10 items of 166 documents
The pesticides use and the risk for head and neck cancer: A review of case-control studies
2020
Background Tobacco, alcohol consumption, and HPV infection are the most common risk factors for head and neck cancer (HNC). Despite of this, recent evidences are growing on the association between long-term exposure to pesticides and the risk of chronic diseases, including different types of cancer. The present review evaluated in current literature evidence of an association between exposure to pesticides and the occurrence of HNCs. Material and Methods A literature search of the case-control studies was conducted in the PubMed, Web of science and Cochrane databases. Methodological quality of each study was rated with the Scottish Intercollegiate Guidelines Network (SIGN 50) checklist. Res…
TP53 codon 72 polymorphism and cervical cancer
2009
Background Cervical cancer is caused primarily by human papillomaviruses (HPV). The polymorphism rs1042522 at codon 72 of the TP53 tumour-suppressor gene has been investigated as a genetic cofactor. More than 80 studies were done between 1998 and 2006, after it was initially reported that women who are homozygous for the arginine allele had a risk for cervical cancer seven times higher than women who were heterozygous for the allele. However, results have been inconsistent. Here we analyse pooled data from 49 studies to determine whether there is an association between TP53 codon 72 polymorphism and cervical cancer.Methods Individual data on 7946 cases and 7888 controls from 49 different st…
Lactobacillus crispatus M247 oral administration: Is it really an effective strategy in the management of papillomavirus-infected women?
2022
Abstract Background Recent studies have shown the importance of the microbiota in women's health. Indeed, the persistence of Human Papilloma Virus (HPV)-related lesions in patients with dysbiosis can be the antechamber to cervical cancer. The aim of this study was to evaluate whether long term administration of oral Lactobacillus crispatus can restore eubiosis in women with HPV infections and hence achieve viral clearance. Methods In total, 160 women affected by HPV infections were enrolled at the Department of Gynecological Obstetrics of “San Paolo” Hospital, Italy between February 2021 and February 2022. The women were randomly assigned to two groups, one in treatment with oral Lactobacil…
“Proliferative verrucous vs conventional leukoplakia: no significantly increased risk of HPV infection” [Oral Oncology 40 (2004) 835–840]
2005
a Department of Oral Sciences, University of Palermo, Via del Vespro 129, Palermo 90127, Italy b Department of Microbiology, University of Palermo, Via del Vespro 133, Palermo 90127, Italy c Department of Head and Neck Pathology, II University of Napoli Piazza Miraglia, 80100, Italy d Department of Biomedical sciences and Human Oncology, Section of Oral Medicine, School of Medicine and Dentistry, University of Turin, Corso Dogliotti, 14, Torino 10126, Italy e Department of Dentistry and Surgery, Pizza G. Cesare 11, Bari 70124, Italy
Geographical distribution and oncogenic risk association of human papillomavirus type 58 E6 and E7 sequence variations.
2013
Human papillomavirus (HPV) 58 accounts for a notable proportion of cervical cancers in East Asia and parts of Latin America, but it is uncommon elsewhere. The reason for such ethnogeographical predilection is unknown. In our study, nucleotide sequences of E6 and E7 genes of 401 HPV58 isolates collected from 15 countries/cities across four continents were examined. Phylogenetic relationship, geographical distribution and risk association of nucleotide sequence variations were analyzed. We found that the E6 genes of HPV58 variants were more conserved than E7. Thus, E6 is a more appropriate target for type-specific detection, whereas E7 is more appropriate for strain differentiation. The frequ…
A survey of seroprevalence of human papillomavirus types 16, 18 and 33 among children.
1999
The importance and natural history of HPV infections in childhood is incompletely understood. We performed a survey for presence of serum antibodies to HPV capsids among 1031 children aged 0 to 13 years, resident in Stockholm, Sweden. The HPV seroprevalence among these children was 3.0% for HPV16, 0.6% for HPV18 and 2.7% for HPV33. By comparison, among simultaneously analyzed positive control panels comprising women with CIN or healthy women with type-specific cervical HPV DNA, seroprevalence of HPV 16, 18 and 33 was 69%, 58% and 63% respectively. The results suggest that HPV infection in childhood is not common.
Infezione orale da Human papillomavirus: dalla verruca al carcinoma orale. Epidemiologia, clinica, prevenzione e terapia
2015
Riasunto Obiettivi Prendere in esame l’epidemiologia e le manifestazioni cliniche dell’infezione orale da Human papillomavirus (HPV), con particolare attenzione alle lesioni con potenziale oncologico maligno. Materiali e metodi E stata condotta una revisione sistematica della letteratura finalizzata a descrivere lo stato dell’arte in merito all’infezione da HPV nella mucosa orofaringea e alle relative modalita di trasmissione del virus con particolare riferimento alla possibile contemporanea infezione in sedi anatomiche multiple. Vengono approfonditi gli aspetti riguardanti la prevenzione e il controllo dell’infezione mediante la somministrazione di vaccini e lo svolgimento di campagne cono…
Serological evidence for protection by human papillomavirus (HPV) type 6 infection against HPV type 16 cervical carcinogenesis
1999
Human papillomavirus (HPV) exists as more than 100 genotypes. It is not well-established whether the different HPV types interfere with infection or pathogenesis by each other. Possible interactions in cervical carcinogenesis between infection with the most common HPV types (6, 11, 16, 18 and 33) were studied in a seroepidemiological case- control study of 218 women with primary untreated cervical cancer and 219 healthy age-matched control women. As previously shown, HPV-16 seropositivity was associated with cervical cancer risk [odds ratio (OR), 2·39], but HPV-16 was not associated with cervical cancer risk among HPV-6 seropositive women (OR, 1·0). The relative excess risk due to interacti…
P33 Up-regulation of FOXP3 T regulatory lymphocytes in patients with high-grade squamous intraepithelial lesions correlated with HPV infection
2019
Introduction/Background Regulatory (FOXP3+) T cells (Tregs) comprise a subpopulation of CD4+ T cells that suppress autoreactive immune cells, thereby protecting organs and tissues from autoimmunity. Novel therapeutic strategies for cervical cancer and squamous intraepithelial lesions (SIL) focus on immune-modulatory and cancer vaccination approaches. The aim of this study was to analyze the role of T regulatory cells (Tregs), CD4 and CD8 T lymphocytes and HPV status in low and high grade squamous intraepithelial lesions (LSIL and HSIL). Methodology 62 patients were enrolled in the study in Riga East University Hospital. Each patient had undergone a biopsy or electroexcision of the cervix. T…
Detection of human papilloma virus (HPV) in liquid-based cervical samples. Correlation with protein p16INK4a expression.
2011
Artículo publicado en: Invest Clin 52(1): 3 - 14, 2011 La citología del cuello uterino en base líquida mejora la calidad de la muestra y el material residual podría ser utilizado para realizar pruebas complementarias, como la detección del virus papiloma humano (HPV) y estudio inmunocitoquímico de biomarcadores. El propósito de este estudio fue correlacionar la presencia de HPV y la inmunoexpresión de p16INK4a en las muestras citológicas en base líquida para examinar la utilidad de estas nuevas herramientas en la detección de cáncer de cuello uterino. Las pacientes incluidas (n=67) presentaban una citología anormal o patología cervical previa. La detección y genotipificación de HPV se reali…