ArticleBiomolecules2026
Curcumin Retains Anti-Inflammatory Effects Despite IDO Inhibition-Associated Neutrophilic Shift in OVA-Induced Rat Model.
Article in Biomolecules, 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
Allergic asthma is characterized by Th2-driven airway inflammation. Indoleamine 2,3-dioxygenase (IDO) maintains immune tolerance, but its role in modulating the anti-inflammatory actions of Curcumin (CN) is unclear. This study investigated whether CN retains efficacy in a rat model of Ovalbumin (OVA)-induced airway inflammation under pharmacological IDO inhibition. Rats were sensitized and challenged with OVA and treated with methylprednisolone (MP, 15 mg/kg), CN (200 mg/kg), the IDO inhibitor 1-MT (70 mg/kg), or CN+1-MT. Assessments included systemic and pulmonary leukocyte profile, delayed-type hypersensitivity (DTH), OVA-specific IgE, bronchoalveolar lavage fluid (BALF) inflammatory cells and nitric oxide (NO) levels, lung wet/dry weight ratio, gene expression of tumor necrosis factor alpha (TNF-α), interleukin (IL)-4, IL-6,
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