Atherogenic diet induced lipid accumulation induced NFκB level in heart, liver and brain of Wistar rat and diosgenin as an anti-inflammatory agent
2018
Binesh, Ambika | Devaraj, Sivasithamparam Niranjali | Halagowder, Devaraj
Atherogenic Diet (AD) was given to rats to understand the key role of inflammatory mediators in atherosclerotic lesion formation, as a serendipitous study, the diet induced inflammatory mediators in liver and brain, whereas pancreas, kidney and spleen were not affected. The efficacy of diosgenin in ameliorating atherosclerotic progression in heart and suppression of inflammatory mediators in liver and brain of Wistar rat fed on AD diet was investigated. Atherogenic diet triggered inflammatory mediators in heart, liver and brain by upregulating TNF-α, COX-2 and NFkBp65 which are the inflammatory hub, played a key role in pathophysiologic conditions. Endothelial dysfunction, liver tissue with prominent steatosis and the stress evoked in the brain by the atherogenic diet triggered these inflammatory mediators. TNF-α and COX-2 expression was upregulated and its elevation was associated with NFkBp65 activation in heart, liver and brain of atherogenic diet induced rat. Diosgenin downregulated these inflammatory mediators, thereby prevented the atherosclerotic disease progression and concomitant suppression of inflammatory mediators in liver and brain.
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