延胡索乙素 (Tetrahydropalmatine) 是从中药紫堇中分离到的一种活性物质，具有镇痛的功效，也被用于研究抗心律失常、抗高血压等。

Tetrahydropalmatine possesses analgesic effects. Tetrahydropalmatine acts through inhibition of amygdaloid release of dopamine to inhibit an epileptic attack in rats^[1].

Dopamine^[1]

Tetrahydropalmatine (THP), an active component isolated from corydalis (a Chinese herbal medicine), possesses analgesic effects. Picrotoxin treatment alone has a significant effect on the following activity measure: there is an increase in horizontal motion time (HMT), vertical motion time (VMT), clockwise turnings (CT), anticlockwise turning (ACT) and a decrease in freezing time (FT). Tetrahydropalmatine treatment alone causes a decrease in HMT, VMT and total distance traveled (TDT), but an increase in FT. Pretreatment of rats with an i.p. dose of 10 mg/kg or 15 mg/kg of Tetrahydropalmatine significantly attenuates the Picrotoxin-induced enhancement in HMT, VMT, CT, ACT and TDT, as well as reduction in FT. Another 48 rats under urethane anesthesia are randomly divided into six groups, each of eight rats. The s.c. injection of Picrotoxin causes an increase in amygdaloid release of dopamine (DA), while i.p. injection of Tetrahydropalmatine at 10 mg/kg has an insignificant effect on amygdaloid release of DA. Again, the Picrotoxin-induced increase in amygdaloid release of DA is significantly attenuated by pretreatment with Tetrahydropalmatine. The Picrotoxin-induced augmented amygdaloid release of DA is almost completely abolished by pretreatment with Tetrahydropalmatine 30 min before s.c. injection of Picrotoxin^[1].

355.43

C₂₁H₂₅NO₄

2934-97-6

四氢帕马丁；延胡索乙素；DL-四氢帕马丁；DL-延胡索乙素

Room temperature in continental US; may vary elsewhere.

DMSO : 6.67 mg/mL (18.77 mM; Need ultrasonic)

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• 1.

  请依序添加每种溶剂： 10% DMSO 40% PEG300 5% Tween-80 45% saline

  Solubility: ≥ 0.67 mg/mL (1.89 mM); Clear solution