Chemistry:Tricyanoaminopropene
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| Trade names | Triap |
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| Formula | C6H4N4 |
| Molar mass | 132.126 g·mol−1 |
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Tricyanoaminopropene (TRIAP, TCAP, Malononitrile Dimer, 1,1,3-tricyano-2-amino-1-propene) is a nootropic drug which mimics the function of nerve growth factor and increases the growth of nerves and tissue regeneration both in isolated tissues[1] and in vivo. It stimulates the action of the enzyme choline acetyltransferase, resulting in increased acetylcholine production.[2] This then results in increased synthesis of RNA in many different tissues in the body.[3] However it also suppresses the production of thyroxine, causing temporary hypothyroidism which returns to normal once the drug is discontinued.[4]
Tricyanoaminopropene reduces the amnesia produced by electroconvulsive shock,[5] and animal tests suggested nootropic activity,[6][7][8] but no beneficial effect was found when it was tested in mentally disabled children,[9] and administration to pregnant rats actually reduced learning ability in their young because of its anti-thyroid hormone effects.[10] This drug thus produces two effects which oppose each other, with the nootropic effect from the increased acetylcholine production cancelled out by the opposite effect produced by the decrease in production of thyroxine. It is not known whether the efficacy of the drug could be improved by supplementation with additional thyroxine or equivalent drugs.
See also
References
- ↑ "1,1,3 tricyano-2-amino-1-propene (Triap): a small molecule which mimics or potentiates nerve growth factor". Brain Research. Developmental Brain Research 55 (1): 21–27. August 1990. doi:10.1016/0165-3806(90)90101-4. PMID 2208638.
- ↑ "1,1,3 Tricyano-2-amino-1-propene (Triap) stimulates choline acetyltransferase activity in vitro and in vivo". Brain Research. Developmental Brain Research 67 (2): 113–120. June 1992. doi:10.1016/0165-3806(92)90212-f. PMID 1511511.
- ↑ "Radioautographic study of the effect of malononitrile dimer on RNA synthesis in mice". Acta Anatomica 100 (1): 44–50. 1978. doi:10.1159/000144880. PMID 899675.
- ↑ "Histological changes in the thyroid gland of the mouse following treatment with 1, 1, 3-tricyano-2-amino-1-propene". Acta Anatomica 106 (4): 468–472. 1980. doi:10.1159/000145216. PMID 7386168.
- ↑ "Effect of tricyanoaminopropene on the amnesic effect of electroconvulsive shock". Psychopharmacologia 9 (5): 426–433. 1966. doi:10.1007/BF00406452. PMID 4173302.
- ↑ "The biochemical and pharmacological basis of learning and memory". Agents and Actions 2 (3): 87–102. November 1971. doi:10.1007/bf01990087. PMID 4950562.
- ↑ "A screening method for substances potentially active on learning and memory". Journal of Pharmacological Methods 8 (4): 255–263. December 1982. doi:10.1016/0160-5402(82)90042-0. PMID 7154677.
- ↑ "Studies of the Effects of Manipulation of Brain Metabolism on Learning. I. Vitamin B12. II. Magnesium Pemoline (Cylert). III. Malononitrile Dimer (u9189). IV. Anodal Polarization". http://stinet.dtic.mil/oai/oai?verb=getRecord&metadataPrefix=html&identifier=AD0660565.[|permanent dead link|dead link}}]
- ↑ "Tricyanoaminopropene (TCAP): lace of improvement of mentation in mentally retarded children". Psychosomatics 10 (2): 136–140. 1969. doi:10.1016/S0033-3182(69)71773-X. PMID 4181970.
- ↑ "Cretinism in rats: enduring behavioral deficit induced by tricyanoaminopropene". Science 167 (3920): 1007–1008. February 1970. doi:10.1126/science.167.3920.1007. PMID 4188980. Bibcode: 1970Sci...167.1007D.
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