Tenuigenin is a major active component isolated from the root of the Chinese herb Polygala tenuifolia. Tenuigenin protects against S.aureus-induced pneumonia by inhibiting NF-κB activation. Tenuigenin has anti-inflammatory effect.
抗炎药。抑制IL-6和IL-8,TNF-α和白介素-1β的表达。增加NR2B表达。在体内显示出抗缺血,神经保护和神经再生的作用。口服有效。Senegenin (Tenuigenin) is a natural product from Polygala tenuifolia used in Chinese medicine with antioxidative and antiinflammatory activity. Senegenin has been studied for nootropic ability to improve cognition. In several independent studies, Tenuigenin attenuated α-synuclein-induced cytotoxicity and α-synuclein phosphorylation by down-regulating polo-like kinase 3 (PLK3) in α-synuclein cell model of Parkinson′s Disease, improved behavioral Y-maze learning by enhancing synaptic plasticity in mice, and attenuated hepatic ischemia-reperfusion induced cognitive dysfunction by increasing hippocampal N-methyl-D-aspartate (NMDA) receptor NR2B subunit expression in rats.
Senegenin is lipophilic and hydrosoluble. It is chemically represented as (2β,3β,4α,12α)-12-(Chloromethyl)-2,3-dihydroxy-27-norolean-13-ene-23,28-dioic acid. Senegenin plays a protective role against memory impairment in a dose and time dependent manner.