Results 21 to 30 of about 253,123 (156)
Diversity, 2014 Among the diversity of secondary metabolites which are produced by plants as means of defence against herbivores and microbes, pyrrolizidine alkaloids (PAs) are common in Boraginaceae, Asteraceae and some other plant families. Pyrrolizidine alkaloids are
Assem El-Shazly, Michael Wink
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Molecules, 2021 Seeds of Crotalaria cleomifolia (Fabaceae) are consumed in Madagascar in preparation of popular beverages. The investigation of extracts from the seeds of this species revealed the presence of high amounts of alkaloids from which two pyrrolizidine ...
Anjaramampionona Henintsoa Duvale Solofomalala +6 more
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The Relationship between Structurally Different Pyrrolizidine Alkaloids and Western Flower Thrips Resistance in F2 Hybrids of Jacobaea vulgaros and Jacobaea aquatica [PDF]
, 2011 Segregating plant hybrids often have more ecological and molecular variability compared to parental species, and are therefore useful for studying relationships between different traits, and the adaptive significance of trait variation.
Vrieling, K. +5 more
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Effects and mechanisms of natural alkaloids for prevention and treatment of osteoporosis
Frontiers in Pharmacology, 2022 Natural alkaloids are polycyclic, nitrogen-containing, and basic compounds obtained from plants. In this review, the advances in bioactive alkaloids with respect to their chemical structures, herbal sources, and effects for the prevention and treatment ...
Bingfeng Lin +6 more
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Extracting and Analyzing Pyrrolizidine Alkaloids in Medicinal Plants: A Review
Toxins, 2020 Pyrrolizidine alkaloids (PAs) are distributed in plant families of Asteraceae, Boraginaceae, and Fabaceae and serve in the chemical defense mechanism against herbivores.
T. Kopp, Mona Abdel-Tawab, B. Mizaikoff
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Pyrrolizidine alkaloids and beehive products: A review.
Food Chemistry, 2020 Pyrrolizidine alkaloids (PA) are secondary metabolites of plants, which are mostly found in the genus Senecio, Echium, Crotalaria, and Eupatorium. The presence of 1,2-unsaturated PA in foods is a concern to food regulators around the world because these ...
Patrícia Brugnerotto +5 more
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PYRROLIZIDINE ALKALOIDS OF CERINTHE GLABRA MILLER (BORAGINACEAE)
Zagazig Journal of Pharmaceutical Sciences, 2004 The pyrrolizidine alkaloids of Cerinthe glabra Miller (total yield 0.3 mg/g dry weight) was investigated by capillary GLC and GLC-MS in combination with retention indices.
Assem El-Shazly
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Metabolism of pyrrolizidine alkaloids by ruminal microbes [PDF]
The plant Senecio jacobaea (tansy ragwort) produces several macrocyclic pyrrolizidine alkaloids which cause irreversible liver cirrhosis. All of the pyrrolizidine alkaloids in Senecio jacobaea are macrocyclic diesters of the necine base retronecine, with
Hovermale, Jeannette Talbot
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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 +4 more
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Pyrrolizidine alkaloids - Tumorigenic components in Chinese herbal medicines and dietary supplements
, 2020 Traditional Chinese medicine (TCM) has long been used for treating illness in China and other Asian countries, and recently use d by the Western countries in several different ways, either for new drug development, or as functional foods and dietary ...
P. Fu +5 more
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