Results 1 to 10 of about 79,429 (193)

Pyrrolizidine alkaloids

Nat. Prod. Rep., 2014
This review focuses on the isolation and synthesis of natural products containing a 1-azabicyclo[3.3.0]octane core (July 2001 to December 2012).
Robertson, J, Stevens, K
core   +5 more sources

Comment on Pyrrolizidine Alkaloids and Terpenes from Senecio (Asteraceae): Chemistry and Research Gaps in Africa [PDF]

Molecules, 2022
The genus Senecio is one of the largest in Asteraceae. There are thousands of species across the globe, either confirmed or awaiting taxonomic delimitation.
Nicholas John Sadgrove
doaj   +2 more sources

Hepatotoxicity of Pyrrolizidine Alkaloids

Journal of Pharmacy & Pharmaceutical Sciences, 2015
PURPOSE: This article aimed 1) to review herbal medicine containing pyrrolizidine alkaloids (PA)-induced toxicities of the liver; 2) to encourage the recognition and prevention of common problems encountered when using complementary and alternative ...
Manuela G Neuman, Lawrence Cohen, Mihai Opris, Radu M Nanau, Hyunjin Jeong   +4 more
doaj   +4 more sources

Pyrrolizidine Alkaloids in Food on the Italian Market [PDF]

Molecules, 2023
Pyrrolizidine alkaloids (PAs) are secondary metabolites produced by over 6000 plant species worldwide. PAs enter the food chain through accidental co-harvesting of PA-containing weeds and through soil transfer from the living plant to surrounding ...
Mariantonietta Peloso, Gaetan Minkoumba Sonfack, Sandra Paduano, Michele De Martino, Barbara De Santis, Elisabetta Caprai   +5 more
doaj   +2 more sources

Liquid chromatography-tandem mass spectrometry analysis of pyrrolizidine alkaloids in Polish honey [PDF]

Journal of Veterinary Research
Pyrrolizidine alkaloids (PAs) are among the most widespread naturally occurring toxins. Since they are primarily produced by flowering plants, there is a high likelihood of their transfer into honey.
Kowalczyk Ewelina
doaj   +2 more sources

Development of a High-Resolution Tandem Mass Spectral Library for Pyrrolizidine Alkaloids (PASL) [PDF]

Scientific Data
This Data Descriptor reports the submission of a High-Resolution Orbitrap Mass Spectral Library of Pyrrolizidine Alkaloids (PASL) to public repositories.
Leonie V. Straub, Patrick P. J. Mulder, Han Zuilhof, Federico Padilla Gonzalez, Laura Righetti   +4 more
doaj   +2 more sources

Pyrrolizidine alkaloids from seven wild-growing Senecio species in Serbia and Montenegro [PDF]

Journal of the Serbian Chemical Society, 2009
The genus Senecio (family Asteraceae) is one of the largest in the world. It comprises about 1100 species which are the rich source of pyrrolizidine alkaloids.
BORIS M. MANDIC, DEJAN N. GODJEVAC, VLADIMIR P. BESKOSKI, MILENA R. SIMIC, SNEZANA S. TRIFUNOVIC, VELE V. TESEVIC, VLATKA V. VAJS, SLOBODAN M. MILOSAVLJEVIC   +7 more
doaj   +3 more sources

Independent recruitment of a flavin-dependent monooxygenase for safe accumulation of sequestered pyrrolizidine alkaloids in grasshoppers and moths. [PDF]

PLoS ONE, 2012
Several insect lineages have developed diverse strategies to sequester toxic pyrrolizidine alkaloids from food-plants for their own defense. Here, we show that in two highly divergent insect taxa, the hemimetabolous grasshoppers and the holometabolous ...
Linzhu Wang, Till Beuerle, James Timbilla, Dietrich Ober   +3 more
doaj   +1 more source

Pyrrolizidine Alkaloid Extraction and Analysis: Recent Updates

Foods, 2022
Pyrrolizidine alkaloids are natural secondary metabolites that are mainly produced in plants, bacteria, and fungi as a part of an organism’s defense machinery.
Sarah F. Al-Subaie, Abdullah M. Alowaifeer, Maged E. Mohamed   +2 more
doaj   +1 more source

Effective Solid Phase Extraction of Toxic Pyrrolizidine Alkaloids from Honey with Reusable Organosilyl-Sulfonated Halloysite Nanotubes

Separations, 2022
Pyrrolizidine alkaloids are plant secondary metabolites that have recently attracted attention as toxic contaminants in various foods and feeds as they are often harvested by accident.
Tobias Schlappack, Nina Weidacher, Christian W. Huck, Günther K. Bonn, Matthias Rainer   +4 more
doaj   +1 more source