Evaluation of Cellular Proliferative Activity in Patients with Actinic Cheilitis through Silver-stained Nucleolar Organizer Region Method
| Autor: | Luiz Renato Paranhos, João Paulo De Carli, Marcos Eugênio de Bittencourt, Samela Martins, Carmen Silvia Busin, Maria Ss Linden, Bernardo Zoehler, Silas Aj de Freitas Filho |
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| Rok vydání: | 2018 |
| Předmět: |
Male
Pathology medicine.medical_specialty Silver Asymptomatic Lesion 030207 dermatology & venereal diseases 03 medical and health sciences 0302 clinical medicine Humans Medicine Clinical significance In patient Coloring Agents General Dentistry Aged Cell Proliferation Cell Nucleus business.industry Actinic cheilitis Significant difference 030206 dentistry Middle Aged medicine.disease Lip Nucleolar Organizer Region Cheilitis Female medicine.symptom Nucleolus organizer region business |
| Zdroj: | The Journal of Contemporary Dental Practice. 19:384-388 |
| ISSN: | 1526-3711 |
| Popis: | Introduction: Actinic cheilitis (AC) is a lesion potentially malignant that affects the lips after prolonged exposure to solar ultraviolet (UV) radiation. The present study aimed to assess and describe the proliferative cell activity, using silver-stained nucleolar organizer region (AgNOR) quantification proteins, and to investigate the potential associations between AgNORs and the clinical aspects of AC lesions. Materials and methods: Cases diagnosed with AC were selected and reviewed from Center of Histopathological Diagnosis of the Institute of Biological Sciences, Passo Fundo University, Brazil. Clinical data including clinical presentation of the patients affected with AC were collected. The AgNOR techniques were performed in all recovered cases. The different microscopic areas of interest were printed with magnification of *1000, and in each case, 200 epithelial cell nuclei were randomly selected. The mean quantity in each nucleus for NORs was recorded. One-way analysis of variance was used for statistical analysis. Results: A total of 22 cases of AC were diagnosed. The patients were aged between 46 and 75 years (mean age: 55 years). Most of the patients affected were males presenting asymptomatic white plaque lesions in the lower lip. The mean value quantified for AgNORs was 2.4 ± 0.63, ranging between 1.49 and 3.82. No statistically significant difference was observed associating the quantity of AgNORs with the clinical aspects collected from the patients (p > 0.05). Conclusion: The present study reports the lack of association between the proliferative cell activity and the clinical aspects observed in patients affected by AC through the quantification of AgNORs. Clinical significance: Knowing the potential relation between the clinical aspects of AC and the proliferative cell activity quantified by AgNORs could play a significant role toward the early diagnosis of malignant lesions in the clinical practice. Keywords: Actinic cheilitis, Proliferative cell activity, Silver-stained nucleolar organizer regions. |
| Databáze: | OpenAIRE |
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