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Solanesol is a trisesquiterpenoid that has been found in N. tabacum and has diverse biological activities.1,2,3 It is active against E. coli, M. phlei, P. aeruginosa, and S. aureus.1 Solanesol (40 μM) increases basal heme oxygenase-1 (HO-1) and nuclear factor erythroid 2-related factor 2 (Nrf2) activities and inhibits LPS-induced production of IL-6, IL-1β, and TNF-α in RAW 264.7 cells.2 It reduces escape latency in the Morris water maze and the number of slips in a beam-crossing task in a rat model of Huntington's disease induced by 3-nitropropionic acid when administered at doses of 5, 10, and 15 mg/kg.3 Solanesol is also a precursor in the formation of polynuclear aromatic hydrocarbons (PAHs), which are carcinogenic components of tobacco smoke, and has been used as a synthetic intermediate in the synthesis of coenzyme Q10 and vitamin K analogs that have antioxidant activities.1

1.Yan, N., Liu, Y., Liu, L., et al.Bioactivities and medicinal value of solanesol and its accumulation, extraction technology, and determination methodsBiomolecules9(8)334(2019) 2.Yao, X., Lu, B., Lü, C., et al.Solanesol induces the expression of heme oxygenase-1 via p38 and Akt and suppresses the production of proinflammatory cytokines in RAW264.7 cellsFood Funct.8(1)132-141(2017) 3.Mehan, S., Monga, V., Rani, M., et al.Neuroprotective effect of solanesol against 3-nitropropionic acid-induced Huntington's disease-like behavioral, biochemical, and cellular alterations: Restoration of coenzyme-Q10-mediated mitochondrial dysfunctionIndian J. Pharmacol.50(6)309-319(2018)

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