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Overview of Amanita muscaria
Myco-pharmacological Outline and Personal Experiences by Francesco Festi and Antonio Bianchi from PM&E Volume Five
- Summary
- Part One: Mycological, Chemical and Neuropharmacological Aspects
- Part Two. Personal Experience with Amanita muscaria.
- Notes
Summary
Part I: Mycological, Chemical and Neuropharmacological Aspects
1) Mycological Outline
2) A Short Ethnomycological Account
3) Chemistry and Pharmacology
3a) Miscellaneous Chemical Compounds
Other Quaternary Ammonium Bases:
Tropane Alkaloids and Bufotenine:
1,2,3,4-tetrahydro-I -methyl-B-carboline-carboxylic acid:
3b) Muscimol and Isoxazoles
3c) The Pharmacology of Muscimol
3d) Possible Mode of Action of Muscimol
Part Two. Personal Experience with Amanita muscaria.
The Vedic poets speak of three filters involved in the preparation of Soma:
- The filtering of sunlight into the mushroom, bearing its magical powers from the heavens,
- The woolen cloth through which the juices were strained,
- The human body.
Notes
- Even without entering into the subject, it's worth mentioning the other three species of the genus Amanita which are somehow connected to the hallucinogenic substances: A. tomentelIa Kromb., A. citrina (Scheff.) S.F. Gray (= A. mappa (Batsch. ex Fr.) Quulet) and A. porphyria (A. & S. ex Fr.) Seer. (= A. recutita (Fr.) Gillet). In this species were found bufotenine and other compounds such as the psychotropic dimethyl-byptamine (DMT) [Catalfolmo & Tyler, 1961; Tyler, 1961; Hofmann, 1964; Tyler and Gr6ger, 1964; Eugster, 1968; Perez-Silva and Aroche Alfonso, 1983].
- Traces of plants with known therapeutical value but without alimentary usefulness are found in caves and burial places more than 60,000 years old [Furst, 1976].
- Already Neanderthal men might have had a proto-religion with shaman characters [Furst, 1976].
- Well enough known to give the name to cholinergic receptors tied to the effecters (and its parasympathomimetic activity at post-ganglionic levels).
- The tropane alkaloids, typical of deliriants of the family Solanaceae, are generally active after ingestion of higher than 10-30 mg. of pure substance [Hoffer and Osmond, 1967; Waser, 1967; Schultes and Hofmann, 1980].
- It's worth remembering here the report of a compound, named Agarin, found in the mushroom by Bowden and Drysdale [1965; Bowden et al., 1965] and whose structure is then shown exactly alike Muscimol.
- This difference of concentration for different parts of the mushroom, different picking seasons and different growing stages can give partial scientific support to the "rules" of Amanita muscaria gathering among the Siberian people using it as an inebriant [Wasson, 1967a, 1967b].
- A benzodiazepine which, as we will see below, potentiates the effects of Muscimol and, in general, of GABA-agonists.
- der to be exhaustive, we can say that the behavioral and EEG effects of ibotenic acid re practically the same as muscimol, yet 5-10 times less powerful.
- One among GABA-antagonists at the CNS level.
- On the other hand, the lack of neurobiological relationship between hallucinogenic drugs of different psychotropic families demonstrates the baselessness of one among the hypotheses proposed in the early 1970s, which supposed a common final way for the actions of hallucinogens [Brawley and Duffield, 1972; Grinspoon and Bakalar, 1979; Jacobs, 1984].
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