ArticleJournal of periodontology2026
Association between serum α-Klotho levels and severity of periodontitis in a representative U.S. population.
Article in Journal of periodontology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundPeriodontitis, a chronic inflammatory disease, is linked to systemic conditions such as cardiovascular and kidney disease. Serum α-Klotho, an anti-aging protein with anti-inflammatory properties, has been associated with systemic diseases, but its role in periodontitis is unclear. This study evaluated the relationship between serum α-Klotho levels and periodontitis severity while accounting for confounders.
methodsIn this cross-sectional study, data from 961 participants in the National Health and Nutrition Examination Survey (NHANES) database were analyzed. Periodontitis was classified into stages (I-IV) and grades (A-C) using the ACES (Application of the 2018 periodontal status Classification to Epidemiological Survey data) guidelines. Serum α-Klotho levels were measured via enzyme-linked immunosorbent assay (ELISA). Ordinal logistic regression assessed associations between α-Klotho levels and periodontitis, adjusting for confounders such as age, smoking, comorbidities, and oral hygiene. The number of lost teeth was analyzed as a secondary outcome.
resultsIn both adjusted and unadjusted regression models, no significant association was found between α-Klotho levels and periodontitis. Particularly, adjusted models revealed no significant association between α-Klotho levels and periodontitis stage (OR = 1.0001, p = 0.547, 95% CI: 0.9997-1.0006) or grade (OR = 0.9996, p = 0.144, 95% CI: 0.9991-1.0001). Age, smoking, and comorbidities significantly predicted severity. Despite a weak negative correlation between α-Klotho and tooth loss (r = -0.07, p = 0.023), this association was no longer significant after adjustment.
conclusionNo significant association was found between serum α-Klotho levels and periodontitis severity. Age, smoking, and comorbidities were key predictors, highlighting the multifactorial nature of periodontitis. Further longitudinal and mechanistic studies are needed to clarify whether α-Klotho has a value as a biomarker of periodontal inflammation or disease progression.
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