RESUMEN
AIM: The aim of this study was to evaluate common human leucocyte antigen (HLA) associations in patients with juvenile idiopathic arthritis (N=110), in patients with generalized aggressive periodontitis (N=50) and in patients with chronic periodontitis (N=102) in comparison to healthy controls (no periodontitis, no arthritis N=102). MATERIAL AND METHODS: HLA-class I and II markers were determined using microlymphocytotoxicity test and polymerase chain reaction with sequence specific primers. Statistical analyses were carried out by chi(2)-test and Yates' correction. If n<5 Fisher's exact test was performed. In the arthritis group the influence of HLA on attachment loss was determined by using backwards logistic regression considering age, gender, smoking, plaque level, and the duration of the disease. RESULTS: In comparison with the controls HLA-DRB3(*) occurred more frequently in both females suffering from juvenile idiopathic arthritis (74.58%versus 54.54%, p=0.024) and females suffering from chronic periodontitis (73.02%versus 54.54%, p=0.035). Furthermore, among patients with juvenile idiopathic arthritis an increased odds ratio (OR) for attachment loss was found in subjects who expressed HLA-A(*)01 (OR=4.6, p=0.014) or HLA-A(*)01:DRB3(*) (OR=4.3, p=0.031). CONCLUSION: HLA-DRB3(*) could be a common putative risk indicator for juvenile idiopathic arthritis and chronic periodontitis among females.
Asunto(s)
Artritis Juvenil/inmunología , Antígenos de Histocompatibilidad Clase II/análisis , Antígenos de Histocompatibilidad Clase I/análisis , Periodontitis/inmunología , Adolescente , Adulto , Niño , Enfermedad Crónica , Estudios de Cohortes , Femenino , Frecuencia de los Genes , Antígenos HLA-C/análisis , Antígenos HLA-DR/análisis , Cadenas HLA-DRB1 , Cadenas HLA-DRB3 , Antígenos de Histocompatibilidad Clase I/genética , Antígenos de Histocompatibilidad Clase II/genética , Humanos , Masculino , Persona de Mediana Edad , Pérdida de la Inserción Periodontal/inmunología , Periodoncio/inmunología , Fenotipo , Factores de Riesgo , FumarRESUMEN
AIM: The aim was to compare the prevalence of periodontal conditions in patients with juvenile idiopathic arthritis (JIA) (n=78, age 14.4 years) with those revealed in a healthy control group (n=75, age 15.5 years). MATERIAL AND METHODS: In both groups, the approximal plaque index (API), the modified sulcular bleeding index (SBI), and the clinical attachment loss (CAL) were determined. Laboratory parameters for JIA activity included the capsule-reactive protein (CRP) and the immunoglobulins A, G, M. RESULTS: JIA patients had a significantly higher API (64.6%versus 49.9%, p=0.004) and slightly higher mean percentages of sites with CAL>3.5 mm (0.58%versus 0.22%, p=0.041). There was no significant difference in the prevalence of patients and controls who had sites with CAL >3.5 mm (25.6%versus 17.3%, p=0.212). The mean CAL was slightly greater (0.2 mm; p=0.030) in patients with CRP> or =5.0 mg/l compared with patients with CRP<5.0 mg/l. Patients who took non-steroidal anti-inflammatory drugs (NSAIDs) had a significantly decreased SBI (26.2%versus 51.1%, p=0.019). CONCLUSION: After adjustment for microbial plaque, JIA is not a risk factor for periodontitis.
