ArticleBMC oral health2026
Enhanced odontoblast regeneration and anti-inflammatory effects of nanocurcumin-loaded BM-MSC-derived exosomes in an LPS-induced periodontitis rat model.
Article in BMC oral health, 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 is commonly known as a chronic inflammatory disease which adversely affects pulpal and periodontal tissues, including odontoblasts. Bone marrow mesenchymal stem cell-derived exosomes (BM-MSC-Exo) and nanocurcumin (NCUR) possess anti-inflammatory and regenerative properties; however, their combined effects on odontoblasts remain insufficiently explored. The research target was to assess the histological, histochemical, and anti-inflammatory effects of BM-MSC-Exo and NCUR-loaded BM-MSC-Exo on odontoblasts of LPS-induced periodontitis in rats.
methodsTwenty-eight male albino rats were assigned at random into four groups (n = 7 each): control, periodontitis, periodontitis treated with BM-MSC-Exo, and periodontitis treated with NCUR-loaded BM-MSC-Exo. Periodontitis was induced via intra-periodontal LPS injections. Histological evaluation was performed using hematoxylin and eosin staining, and collagen synthesis was analyzed using Masson's trichrome stain. Morphometric analysis of newly formed collagen and enzyme-linked immunosorbent assay (ELISA) of interleukin-10 (IL-10) levels were conducted.
resultsUntreated periodontitis caused marked odontoblastic degeneration, reduced predentin thickness, and decreased collagen formation. Treatment with BM-MSC-Exo significantly improved odontoblastic architecture, enhanced collagen deposition, and increased IL-10 expression. NCUR-loaded BM-MSC-Exo demonstrated superior regenerative and anti-inflammatory effects, characterized by improved odontoblastic organization, increasing the area of newly formed collagen, and significantly elevated IL-10 levels compared with all other groups (p < 0.001).
conclusionsBM-MSC-Exo exerts regenerative effects on odontoblasts in periodontitis, which are further enhanced by NCUR loading. NCUR-loaded BM-MSC-Exo declares an encouraging cell-free medicinal strategy for regeneration of periodontal and pulpal tissues.
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