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Depression: 21st Century Solutions + The Dark Side of Wheat

Abstract Title:

Anti-inflammatory activity ofβ-patchoulene isolated from patchouli oil in mice.

Abstract Source:

Eur J Pharmacol. 2016 Apr 14. Epub 2016 Apr 14. PMID: 27090925

Abstract Author(s):

Zhenbiao Zhang, Xiaoying Chen, Hanbin Chen, Lan Wang, Jiali Liang, Dandan Luo, Yuhong Liu, Hongmei Yang, Yucui Li, Jianhui Xie, Ziren Su

Article Affiliation:

Zhenbiao Zhang

Abstract:

β-Patchoulene (β-PAE) is a tricyclic sesquiterpene isolated from the oil of Pogostemon cablin (patchouli oil), which has been widely used in traditional Chinese medicine for the treatment of inflammatory diseases. However, as one of the major principle of patchouli oil, the biological activity ofβ-PAE has not been explored so far. In the present study, the anti-inflammatory activity in vivo, and the underlying mechanism, of β-PAE was investigated on experimental mice models of acute inflammation, i.e. xylene-induced ear edema, acetic acid-induced vascular permeability and carrageenan-induced paw edema. The results showed that β-PAE evoked a significant dose-dependent inhibition of ear edema induced by xylene, paw edema induced by carrageenan and suppressed the increase of vascular permeability elicited by acetic acid. Histopathological analysis indicated that β-PAE could markedlydecrease the cellular infiltration in paw tissue. β-PAE was also shown to significantly decrease the malondialdehyde (MDA) level and myeloperoxidase (MPO) activity in edema paw. In addition, carrageenan-induced production of some pro-inflammatory cytokines: tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), interleukin-6 (IL-6), prostaglandin E2 (PGE2) and nitric oxide (NO), were suppressed in a dose-dependent manner in mice subjected to β-PAE pretreatment, and it also significantly down-regulated the protein expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2(COX-2). Further analysis revealed that β-PAE also inhibited the translocation of nuclear factor-κB (NF-κB) from the cytoplasm to the nucleus and stabilize the conversion of nuclear factor-κBα (IκBα) level. These results provided additional chemical and pharmacological basis for the traditional application of P. cablin in inflammatory disorders.

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Sayer Ji
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Depression: 21st Century Solutions + The Dark Side of Wheat

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