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Humic Acid, a Polyphenolic Substance, Decreases Alveolar Bone Loss in Experimental Periodontitis in Rats
Metin Çalışır1, Aysun Akpınar2, Ömer Poyraz3
1Department of Periodontology, Faculty of Dentistry, Adıyaman University, Adıyaman, Turkey.
Journal of Veterinary Dentistry
|March 25, 2020
Summary
Humic acid administration in rats with experimental periodontitis reduced alveolar bone loss. Doses of 20 and 80 mg/kg showed protective effects against bone degradation and inflammation.
Area of Science:
- Periodontology
- Biochemistry
- Histopathology
Background:
- Periodontitis is a complex inflammatory disease affecting tooth-supporting structures.
- Experimental models are crucial for understanding periodontitis pathogenesis and testing therapeutic interventions.
Purpose of the Study:
- To investigate the effects of locally administered humic acid on experimental periodontitis in rats.
- To evaluate biochemical, morphometric, and histopathological changes induced by humic acid treatment.
Main Methods:
- Wistar rats were induced with periodontitis and treated with varying doses of humic acid (20, 80, 150 mg/kg).
- Alveolar bone loss was measured morphometrically.
- Histopathological analysis assessed osteoclasts, osteoblasts, and inflammatory infiltration.
- Serum and gingival IL-1β and IL-10 levels were quantified using ELISA.
Main Results:
- Humic acid (20 and 80 mg/kg) significantly reduced alveolar bone loss compared to the ligature-only group.
- Osteoclast numbers and inflammatory cell infiltration were decreased by humic acid treatment.
- IL-1β levels were reduced, while IL-10 levels showed variations across groups.
Conclusions:
- Local administration of humic acid, particularly at 20 and 80 mg/kg, demonstrates potential in preventing alveolar bone loss in a rat model of periodontitis.
- Humic acid may exert protective effects by modulating inflammatory responses and bone remodeling processes.

