Genetic polymorphisms of TNF‐α, IL‐6, and IL‐10 in female elderly patients with chronic temporomandibular disorder pain
Special Care in Dentistry(2022)
Abstract
AbstractAimTo verify the association of the TNF‐α, IL‐6, and IL‐10 polymorphisms with chronic temporomandibular disorder pain development in female elderly patients.MethodsParticipants were evaluated according to Diagnostic Criteria for Temporomandibular Disorders. The genomic DNA was extracted from blood according to the Salting Out method followed by a quantification using the NanoDrop spectrophotometer. The –308G/A TNF‐α polymorphism analysis was performed by the polymerase chain reaction‐restriction fragment length polymorphism technique, the determination of –174G/C IL‐6 polymorphism was performed by polymerase chain reaction, and the evaluation of the –1082A/G IL‐10 polymorphism was carried out by polymerase chain reaction‐ allele‐specific amplification. Data were analyzed using the BioEstat 5.3 software.ResultsThe –308G/A TNF‐α polymorphism showed a significant difference when genotypes of cases with chronic temporomandibular disorder pain and controls were compared (p = .025). There was a lack of association regarding the –174G/C IL‐6 polymorphism (p = .286) however, a positive association between the –1082A/G IL‐10 polymorphism with chronic temporomandibular disorder was observed (p = .020).ConclusionThe analyzed data of elderly subjects support the possible involvement of the GA genotype of the –308G/A TNF‐α and the AA genotype of the –1082A/G IL‐10 polymorphisms in the pathogenesis of chronic temporomandibular disorder pain.
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