Pseudocoptisine (Isocoptisine) chloride is a quaternary alkaloid with benzylisoquinoline skeleton, was isolated from Corydalis Tuber. Pseudocoptisine chloride inhibits acetylcholinesterase (AChE) activity with an IC₅₀ of 12.8 μM. Anti-inflammatory and anti-amnestic effects.

Pseudocoptisine (0, 60, 90 μM; 1 hour) dose-dependently inhibited LPS-induced NO production in RAW264.7 cells.
Pseudocoptisine (30-90 μM; 1 hour; RAW264.7 cells) significantly reduces the LPS-induced TNF-α and IL-6 production and their mRNA expressions.
Pseudocoptisine acetate reduces levels of the pro-inflammatory mediators, such as, iNOS, COX-2, TNF-alpha, and IL-6 through the inhibition of NF-kappaB activation via the suppression of ERK and p38 phosphorylation in RAW 264.7 cells.

西域 has not independently confirmed the accuracy of these methods. They are for reference only.

The anti-amnesic activities of Pseudocoptisine in mice on the learning and memory impairments induced by scopolamine (1.0 mg/kg, i.p.) are examined. Pseudocoptisine (2.0 mg/kg, p.o.) significantly reverses cognitive impairments in mice by passive avoidance test.

西域 has not independently confirmed the accuracy of these methods. They are for reference only.

The anti-amnesic activities of Pseudocoptisine in mice on the learning and memory impairments induced by scopolamine (1.0 mg/kg, i.p.) are examined. Pseudocoptisine (2.0 mg/kg, p.o.) significantly reverses cognitive impairments in mice by passive avoidance test.

西域 has not independently confirmed the accuracy of these methods. They are for reference only.

• . Hung TM, et al. Anti-amnestic activity of pseudocoptisine from Corydalis Tuber. Biol Pharm Bull. 2008;31(1):159-162.  [Content Brief]

  . Yun KJ, et al. Quaternary alkaloid, pseudocoptisine isolated from tubers of Corydalis turtschaninovi inhibits LPS-induced nitric oxide, PGE(2), and pro-inflammatory cytokines production via the down-regulation of NF-kappaB in RAW 264.7 murine macrophage c  [Content Brief]