ArticlePharmaceuticals (Basel, Switzerland)2026
Omega-3-Based Nutraceuticals Suppress LPS-Induced Inflammatory Responses in Primary Human Monocytes.
Article in Pharmaceuticals (Basel, Switzerland), 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
Chronic inflammation is a key contributor to the pathogenesis of numerous diseases, including cardiovascular, metabolic, and neurodegenerative disorders. Nutraceutical strategies targeting inflammatory pathways are of increasing interest, particularly those based on omega-3 fatty acids. The objective of this study was to evaluate the anti-inflammatory effects of two omega-3-based nutraceutical formulations, Omega 3 Plus and Omega 3 Orange, in primary human monocytes. Primary human monocytes were isolated from peripheral blood of a healthy donor and cultured under standardized conditions. Cells were pre-treated with different concentrations of the test formulations and subsequently stimulated with lipopolysaccharide (LPS, 10 ng/mL) for 24 h. Cell viability was assessed using the AlamarBlue assay. The release of pro-inflammatory mediators, including TNF-α, IL-1β, IL-6, MCP-1, IL-8, and prostaglandin E2 (PGE2), as well as the anti-inflammatory cytokine IL-10, was quantified using ELISA. Both formulations were well tolerated at concentrations up to 2.5%, with no significant cytotoxic effects. LPS stimulation induced a robust increase in inflammatory mediator release. Pre-treatment with Omega 3 Plus and Omega 3 Orange resulted in a significant, dose-dependent inhibition of pro-inflammatory cytokines, including TNF-α, IL-1β, and IL-6 (up to ~70% reduction). MCP-1 was moderately reduced, whereas IL-8 was only minimally affected. Notably, Omega 3 Orange exhibited a pronounced inhibition of PGE2 production (up to ~95%), while Omega 3 Plus reduced PGE2 levels by approximately 80%. Neither formulation induced IL-10 production in unstimulated cells. These findings demonstrate that both omega-3-based nutraceutical formulations exert potent anti-inflammatory effects in primary human monocytes, primarily through the inhibition of pro-inflammatory cytokines and PGE2. The strong suppression of PGE2 is consistent with a possible modulation of pathways involved in prostaglandin synthesis. These results support the potential application of such formulations in inflammation-associated conditions and warrant further mechanistic and clinical investigation.
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