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Names | |
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IUPAC name 1,2-Dimethoxy-6aβ-aporphine | |
Systematic IUPAC name (6aR)-1,2-Dimethoxy-6-methyl-5,6,6a,7-tetrahydro-4H-dibenzo[de,g]quinoline | |
Other names (R)-1,2-Dimethoxyaporphine | |
Identifiers | |
3D model (JSmol) | |
ChEMBL | |
ChemSpider | |
PubChem CID | |
UNII | |
CompTox Dashboard (EPA) | |
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Properties | |
C19H21NO2 | |
Molar mass | 295.376 g/mol |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). |
Nuciferine is an alkaloid found within the plants Nymphaea caerulea and Nelumbo nucifera . [1] [2]
Preliminary psychopharmacological research in 1978 was unable to conclusively determine the compound's classification regarding dopamine-receptor activity. [3] On one hand, investigative studies found evidence of behavior traditionally associated with dopamine-receptorstimulation: stereotypy, increase in spontaneous motor activity, inhibition of conditioned avoidance response, and an increase in pain sensitivity resulting in an inhibition of morphine analgesia. [3] On the other hand, these early investigative studies also found evidence of behavior traditionally associated with dopamine-receptorblockade: decrease of spontaneous motor activity, chills, catalepsy, trance-like states of consciousness. [3]
Nuciferine exhibits a receptor profile similar to atypical antipsychotics, demonstrating antipsychotic-like effects in rodent models without inducing catalepsy. [4]
Nuciferine has been reported to have various anti-inflammatory effects, possibly mediated via PPAR delta activation. [5]
According to a newer study from 2016, Nuciferine acts as an antagonist at 5-HT2A, 5-HT2C, and 5-HT2B receptors, an inverse agonist at the 5-HT7 receptor, a partial agonist at D2, D5, and 5-HT6 receptors, and an agonist at 5-HT1A and D4 receptors. Additionally, it inhibits the dopamine transporter (DAT). [4]
In rodent models relating to antipsychotic drug effects, Nuciferine has shown various actions such as blocking head-twitch responses and discriminative stimulus effects of a 5-HT2A agonist, enhancing amphetamine-induced locomotor activity, inhibiting phencyclidine (PCP)-induced locomotor activity, and restoring PCP-induced disruption of pre-pulse inhibition without inducing catalepsy. [4]
Nuciferine may also potentiate morphine analgesia. The median lethal dose in mice is 289 mg/kg. It is structurally related to apomorphine and other aporphine derivatives. [6] [7]