Ergine

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Ergine
Clinical data
Other namesLSA; d-Lysergic acid amide; d-Lysergamide; Ergine; LA-111
Pregnancy
category
Routes of
administration
Oral, intramuscular injection
ATC code
  • none
Legal status
Legal status
Pharmacokinetic data
MetabolismHepatic
ExcretionRenal
Identifiers
  • (8β)-9,10-didehydro-6-methyl-
    ergoline-8-carboxamide
JSmol)
Melting point135 °C (275 °F) Decomposes[4]
  • O=C(N)[C@@H]1C=C2C3=CC=CC4=C3C(C[C@@]2([H])N(C1)C)=CN4
  • InChI=1S/C16H17N3O/c1-19-8-10(16(17)20)5-12-11-3-2-4-13-15(11)9(7-18-13)6-14(12)19/h2-5,7,10,14,18H,6,8H2,1H3,(H2,17,20)/t10-,14-/m1/s1 checkY
  • Key:GENAHGKEFJLNJB-QMTHXVAHSA-N checkY
  (verify)

Ergine, also known as d-lysergic acid amide (LSA) and d-lysergamide, is an

ololiuhqui, Hawaiian baby woodrose and morning glories have been linked to ergine and/or isoergine, its epimer, as it is an alkaloid present in the seeds.[5][6][7]

Occurrence in nature

Ergine has been found in high concentrations of 20 μg/g dry weight in the

sleepygrass infected with an Acremonium endophytic fungus together with other ergot alkaloids.[8]

Ergine is a component of the alkaloids contained in the ergot fungus, which grows on the heads of infected rye grasses.

It is also found in the seeds of several varieties of

Hawaiian baby woodrose seeds, at a concentration of around 0.13% of dry weight.[9]

History

Ololiuhqui was used by South American healers in shamanic healing ceremonies.[10] Similarly, ingestion of morning glory seeds by Mazatec tribes to "commune with their gods" was reported by Richard Schultes in 1941 and is still practiced today.[11][10]

Sewell RA. Entheogen Rev. 2008;16:117-25.

Additional reports of the use of ergine were made by Don Thomes MacDougall. He reported that the seeds of

Rivea corymbosa, another species which has a similar chemical composition, with lysergol instead of ergometrine.[7]

Ergine was assayed for human activity by

baseline was recovered within five hours.[6]

In 1956, the

In 1959, Hofmann was the first to isolate chemically pure ergine from the seeds of

Turbina corymbosa, determining that it, and other alkaloids, were acting as the main active components in the seeds.[7] Twenty years prior to its isolation, ergine was first chemically defined by English chemists S. Smith and G. M. Timmis as the cleavage product of ergot alkaloids. Additionally, Guarin and Youngkin reportedly isolated the crude alkaloid in 1964 from morning glory seeds.[13]

Ingestion

Like other psychedelics, ergine is not considered to be addictive. Additionally, there are no known

seeds.[14] Another instance is a death due to falling off of a building after ingestion of Hawaiian baby woodrose seeds and alcohol.[15]

Physiological effects

While its physiological effects vary from person to person, the following symptoms have been attributed to the consumption of ergine or ergine containing seeds:[7][10][16]

One study found that 2 of 4 human subjects experienced cardiovascular dysregulation and the study had to be halted, concluding that the ingestion of seeds containing ergine was less safe then commonly believed. Importantly this may have been a product of other substances within the seeds. The same study also observed that reactions were highly differing in type and intensity between different subjects.[17] Another study in mice found that the drug had aphrodisiac properties, inducing increased sexual behavior.[18]

A study gave mice 3000 mg/kg with no lethal effects.[citation needed]

Psychedelic component

Ergine is thought to be a

serotonergic psychedelic and its psychedelic effects are thought to be due to it being a partial agonist of the 5-HT2A receptor
. Though, the reason as to why this may be hallucinogenic remains elusive.

The idea that ergine is the main psychedelic component in ergine containing seeds (morning glory, Hawaiian baby woodrose) is well debated, as the effects of isolated synthetic ergine are reported to be only mildly psychedelic.[9][16] Thus, the overall psychedelic experience after consumption of such seeds has been proposed to be due to a mixture of ergoline alkaloids.

Pharmacology

Pharmacodynamics

Affinities of LSA and LSD for various receptors[20]
Receptor Affinity (Ki [nM])
LSA LSD
5-HT1A 10 2.5
5-HT2 28 0.87
D1
832 87
D2L
891 155
D2S
145 25
D3
437 65
D4.4
141 30
α1
912 60
α2
62 1.0
Notes: 5-HT1A and D1 are for pig receptors.[20]

Ergine interacts with

lysergic acid diethylamide (LSD).[20] The psychedelic effects of ergine can be attributed to activation of serotonin 5-HT2A receptors.[21]

Chemistry

Biosynthesis

Biosynthesis of the ergoline scaffold
Biosynthesis of the ergoline scaffold

The biosynthetic pathway to ergine starts like most other ergoline alkaloid- with the formation of the ergoline scaffold. This synthesis starts with the

short-chain dehydrogenase/reductase (SDR), EasD.[22][23]

Formation of argoclavine
Formation of argoclavine

From here, the biosynthesis diverges and the products formed are plant and fungus-specific. The biosynthesis of ergine in

nonribosomal peptide synthase (NRPS) with two enzymes primarily involve: D-lysergyl peptide synthase (LPS) 1 and 2.[22][23]

Legal status

The legality of consuming, cultivating, and possessing ergine varies depending on the country.

There are no laws against possession of ergine-containing seeds in the United States. However, possession of the pure compound without a prescription or a DEA license would be prosecuted, as ergine, under the name "lysergic acid amide", is listed under Schedule III of the Controlled Substances Act.[24] Similarly, ergine is considered a Class A substance in the United Kingdom, categorized as a precursor to LSD.

In most Australian states, the consumption of ergine containing materials is prohibited under state legislation.

In Canada, ergine is not illegal to possess as it is not listed under Canada's Controlled Drugs and Substances Act, though it is likely illegal to sell for human consumption.[25]

In New Zealand, ergine is a controlled drug, however the plants and seeds of the morning glory species are legal to possess, cultivate, buy, and distribute.

See also

References

  1. ^ Erowid Morning Glory Basics, Erowid.org, retrieved 2012-02-03
  2. ^ Anvisa (2023-07-24). "RDC Nº 804 - Listas de Substâncias Entorpecentes, Psicotrópicas, Precursoras e Outras sob Controle Especial" [Collegiate Board Resolution No. 804 - Lists of Narcotic, Psychotropic, Precursor, and Other Substances under Special Control] (in Brazilian Portuguese). Diário Oficial da União (published 2023-07-25). Archived from the original on 2023-08-27. Retrieved 2023-08-27.
  3. ^ "Arrêté du 20 mai 2021 modifiant l'arrêté du 22 février 1990 fixant la liste des substances classées comme stupéfiants". www.legifrance.gouv.fr (in French). 20 May 2021.
  4. .
  5. ^ Perrine DM (2000). "Mixing the Kykeon" (PDF). ELEUSIS: Journal of Psychoactive Plants and Compounds. New Series 4: 9. Archived from the original (PDF) on 2019-07-20. Retrieved 2008-05-05.
  6. ^ a b Alexander Shulgin, "#26. LSD-25", TiHKAL, Erowid.org, retrieved 2012-02-03
  7. ^ .
  8. PMID 1344912. Archived from the original
    on 2012-12-16.
  9. ^ .
  10. ^ a b c Sewell RA (2008). "Unauthorized research on cluster headache" (PDF). The Entheogen Review. 16 (4): 117–125.
  11. ^ Schultes RE (1941). A Contribution to Our Knowledge of Rivea Corymbosa: The Narcotic Ololinqui of the Aztecs (1st ed.). Botanical Museum of Harvard University.
  12. ^ "PROJECT MKULTRA, SUBPROJECT 22 (W/ATTACHMENTS)". Central Intelligence Agency.
  13. ^ Der Marderosian AH, Guarino AM, De Feo JJ, Youngken Jr HW (1964). "A Uterine Stimulant Effect of Extracts of Morning Glory Seeds". Pschedelic Review: 317–323.
  14. PMID 14138842
    .
  15. .
  16. ^ .
  17. ^ .
  18. ^ a b Subramoniam A, Madhavachandran V, Ravi K, Anuja VS (December 2007). "Aphrodisiac property of the elephant creeper Argyreia nervosa". Journal of Endocrinology and Reproduction. 11 (2): 82–85.
  19. ^
    S2CID 9261722
    .
  20. ^ .
  21. .
  22. ^ .
  23. ^ .
  24. ^ "Initial schedules of controlled substances (Schedule III), Section 812". www.deadiversion.usdoj.gov. Archived from the original on 2021-11-04. Retrieved 2020-01-17.
  25. ^ "Erowid LSA Vault : Legal Status". erowid.org. Retrieved 2020-05-05.

Further reading

External links