Results 11 to 20 of about 386 (118)
AASLD practice guidance on drug, herbal, and dietary supplement–induced liver injury
, 2022 Hepatology, EarlyView.
Robert J. Fontana +6 more
wiley +1 more source
Foods, 2023 Pyrrolizidine alkaloids are secondary metabolites produced by plants as a defense against insects. These can cause acute or chronic toxicity in humans. Therefore, avoiding potential poisoning from the consumption of tea and culinary plants contaminated ...
Zinar Pinar Gumus
doaj +1 more source
Journal of Veterinary Research, 2022 Pyrrolizidine alkaloids (PAs) and tropane alkaloids (TAs) are natural contaminants of honey and respectively hepatoxic and neurotoxic compounds. Because honey is a popular constituent of the human diet, it is relevant to warrant the safety of the product.
Kowalczyk Ewelina, Kwiatek Krzysztof
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
Simultaneous determination of 7 pyrrolizidine alkaloids and their nitrogen oxides in herbal tea by SPE-UPLC-MS/MS [PDF]
Zhongguo niangzaoA analysis method for simultaneous determination of 7 pyrrolizidine alkaloids and their nitrogen oxides (monocrotaline, monocrotaline N- oxide, lycopsamine, lycopsamine-N-oxide, heliosinine, heliosinine-N-oxide, senecionine) in herbal tea was established
WU Zhongling, HE Zhongqiang, HUANG Zhining, SU Ruifen, CHEN Liting, ZHONG Junwei
doaj +1 more source
Diet and chemical defence in ladybird beetles (Coleoptera: Coccinellidae)
European Journal of Entomology, 2022 In this paper, I review the effects of the diet of ladybirds on chemical defence in this group of beetles. The tendency to reflex bleed and the diversity of autogenously produced alkaloids in different taxa may be evolutionarily related to diet and the ...
John J. SLOGGETT
doaj +1 more source
Tolerating Toxins: Grasshoppers that Feast on Pyrrolizidine Alkaloids §
CHIMIA, 2018 The elegant grasshopper (Zonocerus elegans) and the variegated grasshopper (Z. variegatus) are among insects that deliberately consume and store pyrrolizidine alkaloids which are subsequently used in defence mechanisms.
Catherine E. Housecroft
doaj +1 more source
Pyrrolizidine alkaloids from Bulgarian species of the genus Senecio [PDF]
Journal of the Serbian Chemical Society, 2006 Nine Bulgarian species from the genus Senecio were studied phytochemically and/or by GC-MS analysis. Senecivernine-N-oxide was isolated and identified by spectral data for the first time.
Kostova Nadezhda +4 more
doaj +3 more sources