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Piotr Wieczorek

4 papers in the library · 64 citations · publishing 2014-2020

Papers

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What is the form of muscimol from fly agaric mushroom (Amanita muscaria) in water? An insight from NMR experiment supported by molecular modeling.

Magnetic resonance in chemistry : MRC June 2020 Teobald Kupka, Małgorzata A Broda, Piotr Wieczorek

The biologically active alkaloid muscimol is present in fly agaric mushroom (Amanita muscaria), and its structure and action is related to human neurotransmitter γ -aminobutyric acid (GABA). The current study reports on determination of muscimol form present in water solution using multinuclear 1 H and 13 C nuclear magnetic resonance (NMR) experiments supported by density functional theory...

DOI: 10.1002/mrc.4990 (opens in new tab) Full text (opens in new tab) Giao nmr Nmr in water Molecular modeling Muscimol

Theoretical and experimental NMR studies on muscimol from fly agaric mushroom (Amanita muscaria).

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy January 15, 2016 Teobald Kupka, Piotr Wieczorek

In this article we report results of combined theoretical and experimental NMR studies on muscimol, the bioactive alkaloid from fly agaric mushroom (Amanita muscaria). The assignment of (1)H and (13)C NMR spectra of muscimol in DMSO-d6 was supported by additional two-dimensional heteronuclear correlated spectra (2D NMR) and gauge independent atomic orbital (GIAO) NMR calculations using density...

Research on Acute Toxicity and the Behavioral Effects of Methanolic Extract from Psilocybin Mushrooms and Psilocin in Mice

Toxins March 27, 2015 О. В. Жук, Іzabela Jasicka-Misiak, Anna Poliwoda et al. 64 citations

The pharmacological activities and acute toxicity of the psilocin (PC) and dried residues of the crude extracts of psychotropic mushrooms were investigated in mice. The hallucinogenic substances were effectively isolated, by using methanol, from the species of Psilocybe semilanceata and Pholiotina cyanopus, that were collected in the north-east region of Poland. The chemical analysis of these...

Pholiotina cyanopus, a rare fungus producingpsychoactive tryptamines

Open Life Sciences November 19, 2014 Marek Halama, Anna Poliwoda, Іzabela Jasicka-Misiak et al.

Abstract Pholiotina cyanopus was collected from wood chips and other woody remnants of undetermined tree species. Its basidiomata were found in June within the area of closed sawmill in the central part of Żywiec city (SW Poland). Description and illustration of Ph. cyanopus based on Polish specimens are provided and its ecology, general distribution and comparison with similar taxa –...

DOI: 10.1515/biol-2015-0005 (opens in new tab) Psilocybin Basidiocarp Tryptamines Dry weight +1