Results 51 to 60 of about 79,429 (193)

Phytochemical Screening, Pharmacological Evaluation, and Exploratory In Silico Analysis of Emilia sonchifolia Extract and Solvent Fractions

Cell Biochemistry and Function, Volume 44, Issue 11, November 2026.
ABSTRACT Emilia sonchifolia (L.) DC. is a medicinal plant used traditionally for the management of several disorders; however, integrated experimental evaluation of its pharmacological properties remains limited. This study evaluated the phytochemical composition and selected biological activities of the methanolic whole‐plant extract of E. sonchifolia
Md. Masud Morshed, Mohammad Arman, Mohammad Nazmul Islam, Ziaul Karim, Rakibur Rahman, Mohammed Hassan Kawsar, Md. Sohel Rana   +6 more
wiley   +1 more source

Pyrrolizidine Alkaloids From <i>Cynoglossum furcatam</i>

, 2008
Two new pyrrolizidine alkaloids of Cynoglossum furcatam have been isolated and characterised. They are lactodine, a monoester alkaloid and viridinatine, a pyrrolizidine diester alkaloid.
Ravikumar, T, Lakshmanan, A J, S Ravi, Ravi, S, T Ravikumar, A J Lakshmanan   +5 more
core   +1 more source

Pyrrolizidine alkaloids from Heliotropium transoxanum Bunge [PDF]

Research Journal of Pharmacognosy, 2016
Background and objectives: The plants belonging to the genus Heliotropium L. (Boraginaceae) are the main sources of toxic pyrrolizidine alkaloids (PAs).
M. R. Delnavazi, M. Banihashem, H. Farsam, A. Shafiee, N. Yassa   +4 more
doaj  

Stemonine Alleviates UVB‐Induced Keratinocyte Senescence by Activating SIRT3

Journal of Biochemical and Molecular Toxicology, Volume 40, Issue 11, November 2026.
Stemonine, a natural alkaloid, protects human HaCaT keratinocytes against UVB‐induced skin senescence. Stemonine attenuated oxidative stress, mitochondrial dysfunction, DNA damage, and key senescence markers. It functioned by upregulating the expression and activity of SIRT3.
Kun Chen, Xudong Yan, Guixiang You, Mingyang Li, Chen Chen, Xiaolan Yu, Jiyi Xia   +6 more
wiley   +1 more source

Use of a new LC-MS method for the determination of pyrrolizidine alkaloids in feeds

Journal of Veterinary Research, 2018
Pyrrolizidine alkaloids (PAs) are secondary metabolites produced by many plant species. Due to their toxicity PAs can pose a risk to human and animal health.
Kowalczyk Ewelina, Kwiatek Krzysztof
doaj   +1 more source

Plant Part–Specific Differences in Ashwagandha (Withania somnifera): A Comparative Evaluation of Root and Leaf Evidence for Safety and Regulation

Food Science &Nutrition, Volume 14, Issue 10, October 2026.
This review contrasts the root and leaf of Withania somnifera (ashwagandha) across phytochemistry, clinical evidence, and regulatory context. Root preparations are dominated by withanolide A, D, and glyco‐withanolides, with multiple randomized controlled trials supporting reductions in stress, anxiety, and insomnia alongside a favorable safety profile.
Abhijit Dutta, Jang Bahadur Gupta
wiley   +1 more source

Complex multitrophic species interactions and fitness costs: Intricate consequences of jasmonate and salicylate induced plant defences

Journal of Animal Ecology, Volume 95, Issue 10, Page 1859-1875, October 2026.
This study reveals how long‐term activation of jasmonic and salicylic acid signalling reshapes arthropod communities and plant fitness across seasons. By showing that induced defences generate contrasting outcomes and cascading trade‐offs across trophic levels, it challenges the assumption that induced resistance is uniformly beneficial in natural ...
Mônica F. Kersch‐Becker, Guilherme P. Pinheiro, Thaís S. Schweller, Martin Pareja, Victoria M. Pocius, José R. Trigo, Gustavo Q. Romero   +6 more
wiley   +1 more source

Comparative Study of the Antioxidant Mediated Antiaging Properties of Endocarp Extracts From Phoenix dactylifera and Phoenix dactylifera L. via In Silico and In Vitro Analysis

Food Science &Nutrition, Volume 14, Issue 9, September 2026.
This comparative study demonstrates that Phoenix dactylifera possesses higher anti‐aging potential compared to Phoenix dactylifera L., which may be attributed to their higher phenolic and flavonoid contents along with stronger free radical scavenging capacity.
Farheen Asaad, Mazhar Abbas, Waqas Haider, Naveed Munir, Maha Gul Zafar, Muhammad Riaz, Muhammad Arshad, Muhammad Arfan Zaman, Tariq Hussain, Muhammad Adnan Ayub, Hasan Ejaz, Quzi Sharmin Akter   +11 more
wiley   +1 more source

Pyrrolizidine alkaloids in foods

, 2003
In addition to the many well-known major nutrients (protein, fat, carbohydrate and fiber) and minor nutrients (vitamins, minerals and nonessential compounds), foods contain thousands of naturally present toxic plant compounds. Some are carcinogenic in animals, and thus may be potentially carcinogenic in people.
openaire   +3 more sources

Neuroprotective Effects of Senecio brasiliensis Extract Against Chlorpyrifos‐Induced Neurotoxicity and Oxidative Stress in Drosophila melanogaster

Basic &Clinical Pharmacology &Toxicology, Volume 139, Issue 3, September 2026.
ABSTRACT Chlorpyrifos (CP) is an organophosphate insecticide that induces neurotoxicity through acetylcholinesterase (AChE) inhibition and redox imbalance, raising environmental and occupational health concerns. Plant‐derived compounds from Senecio brasiliensis, native to the Pampa biome, offer multitarget therapeutic potential.
Maria Vitória Takemura Mariano, Giany Gabriely Padão dos Santos, Ana Beatriz Guedes de Souza, Thaís de Camargo Neves, Franklin Vinny Medina Nunes, Pedro Henrique Vicenzi, Karen Kich Gomes, Mauro Eugênio Medina Nunes, Marcelo Farina, Jeferson Luis Franco, Thaís Posser   +10 more
wiley   +1 more source