Reza Zare; Narges Ghazi; Farnaz Mohajertehran; Narges Asfiaee; Pendar Argani; Negar Khodaeni; Salehe Akhondian
Abstract
Introduction:Oral lichen planus treatment offers favorable clinical results over time due to its widespread prevalence. However, to date, there is still no theoretical agreement on the cause of this disease. Therefore, the present study aimed to investigate the frequency of human papillomavirus (HPV) ...
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Introduction:Oral lichen planus treatment offers favorable clinical results over time due to its widespread prevalence. However, to date, there is still no theoretical agreement on the cause of this disease. Therefore, the present study aimed to investigate the frequency of human papillomavirus (HPV) DNA in oral lichen planus (OLP) tissue samples by the polymerase chain reaction (PCR) method.Methods:This retrospective study was carried out from 1387 to 1398 on 40 OLP samples (24non-erosive-atrophic and 16 erosive-atrophic forms) in the Oral Pathology Department of Mashhad Dental School. Polymerase chain reaction (PCR) was undertaken to identify HPV-DNA. Subsequently, the samples for HPV-DNA underwent PCR analysis again with the specific primers. The data were analyzed statistically by chi-square and independent t-test test regarding the significance levelof lower than 0.05.Results: The population consisted of 29 women (72.5%) and 11 men (27.5%) with an average age of 49.48± 2.78 years. Human papillomavirus DNA in none of the studied samples (in none of the groups) was detected by PCR. Gender distribution in the studied groups was not significantly different from each other, as the groups did not differ significantly in average age.Conclusion: No HPV-positive samples were observed in oral lichen planus samples based on the recent findings in the current study of the Iranian population. Nevertheless, the patients› demographic data were not meaningfully associated. More sample sizes with a control group and a complete medical history should be recruited in further studies. Using complementary methods to approve the PCR method can help further studies to demonstrate accurate results.
Nooshin Mohtasham; Hooshang Rafatpanah; Atessa Pakfetrat; Reza Zare; Hamideh Kade; Mahshad Hosseini shad; Maryam Zamanzadeh; Farnaz Mohajertehran
Abstract
Introduction:Recurrent aphthous ulcers are the most common pathologic conditions of the oral cavity, which despite having clear clinical features, the etiology is unknown. This study aimed to determine the relationship between one of the histocompatibility antigens (HLA DRB1) and its sub-groups with ...
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Introduction:Recurrent aphthous ulcers are the most common pathologic conditions of the oral cavity, which despite having clear clinical features, the etiology is unknown. This study aimed to determine the relationship between one of the histocompatibility antigens (HLA DRB1) and its sub-groups with the incidence of recurrent aphthous ulcers in an Iranian population (North East of Iran). Methods: In this case-control study, a total of 72 patients with recurrent aphthous ulcers and 70 healthy subjects in Northeast Iranian population were included. Genotyping was done by polymerase chain reaction-specific sequence primers (PCR- SSP) for each sample, according to standard kit protocol (BAG- Germany). Results: In 72 patients with recurrent aphthous ulcers that were included in this study, 26 were male and 46 were female; of the 70 control patients, this difference not significant statistically (P>0.05). The frequency of HLA -DRB1 *16 was 0.7% in the healthy subjects, however frequency of HLA -DRB1 *16 in patients with recurrent aphthous stomatitis (RAS) was 42.36%, and this difference was statistically significant (P=0.03). But, this difference was not observed in other subgroups.Conclusion: The frequency of DRB1 * 16 in the patients with RAS were higher than the group. Therefore, DRB1 * 16 can be suggested as a Predisposing factor for aphthous ulcers patients.