Results 71 to 80 of about 12,996 (224)

A New Triterpene from the Plant of Uncaria Macrophylla

open access: yesMolecules, 2012
Our ongoing investigations on the stem bark of Uncaria macrophylla afforded a new ursolic triterpene, 3β,6β,19α-trihydroxy-urs-12-en-28-oic acid-24-carboxylic acid methyl ester (1), named uncariursanic acid, and three known ursolic triterpenes including ...
Jingquan Yuan   +5 more
doaj   +1 more source

Toxicity of aqueous extracts of Ilex paraguariensis A.St.‐Hil. about Euphorbia heterophylla L.

open access: yesPest Management Science, Volume 82, Issue 7, Page 6196-6206, July 2026.
Aqueous extracts of Ilex paraguariensis A.St.‐Hil. strongly inhibit Euphorbia heterophylla L. germination and early seedling growth, but show mild phytotoxicity on mature plants, paradoxically promoting biomass via antioxidants. Abstract BACKGROUND The escalating challenge of herbicide‐resistant weeds, exemplified by Euphorbia heterophylla L.
Tamara Alberton da Silva   +8 more
wiley   +1 more source

Effect of ursolic acid from epicuticular waxes of jacaranda decurrens on schizaphis graminum [PDF]

open access: yes, 1992
Ursolic acid from Jacaranda decurrens showed toxicity and feeding deterrency towards the greenbug Schizaphis graminum. Biological activity was determined by analyzing ursolic acid effects on the survival, reproductive index, and population growth rate of
Zúñiga, G. E.   +4 more
core   +1 more source

Oxidation and Acetylation of Ursolic and Oleanolic Acids Isolated from Fragraea fragrans fruits; Antiproliferation of P388 Leukemia Cells

open access: yesIndonesian Journal of Chemistry, 2014
An interesting natural product chemistry aspect of Fragraea fragrans is that their fruits are richness with ursolic acid and its isomer oleanolic acid (3.05% of dried powder).
Dasril Basir   +3 more
doaj   +1 more source

Synthesis and Antiplasmodial Activity of Betulinic Acid and Ursolic Acid Analogues [PDF]

open access: yesMolecules, 2012
More than 40% of the World population is at risk of contracting malaria, which affects primarily poor populations in tropical and subtropical areas. Antimalarial pharmacotherapy has utilised plant-derived products such as quinine and artemisinin as well as their derivatives.
Innocente, Adrine   +8 more
openaire   +4 more sources

Crataegus oxyacantha Extract Enhances Cardiac Adaptation and Reduces Oxidative‐Inflammatory Stress in Broiler Chickens Raised at High Altitude Under Cold Stress

open access: yesVeterinary Medicine and Science, Volume 12, Issue 4, July 2026.
Crataegus oxyacantha extract at 0.4 mL/L improved cardiac function in broilers under cold stress and high altitude by increasing nitric oxide synthase gene expression, boosting nitric oxide, reducing endothelin‐1 gene expression, and lowering oxidative‐inflammatory stress, offering a natural solution to mitigate pulmonary hypertension syndrome ...
Behnam Ahmadipour   +3 more
wiley   +1 more source

Inhibitory effects of ursolic acid from Bushen Yijing Formula on TGF-β1-induced human umbilical vein endothelial cell fibrosis via AKT/mTOR signaling and Snail gene

open access: yesJournal of Pharmacological Sciences, 2019
The present study aimed to investigate the functional components from Bushen Yijing Formula and their inhibition of endothelial–mesenchymal transition (EndMT) and fibrosis in human umbilical vascular endothelial cells (HUVECs). HUVEC fibrosis was induced
Ke Zhu   +7 more
doaj   +1 more source

Traditional Respiratory Remedies From Anatolia: Ethnobotanical Insights and Bioactive Properties

open access: yesChemistry &Biodiversity, Volume 23, Issue 6, June 2026.
ABSTRACT Respiratory disorders, ranging from acute viral infections such as influenza and bronchitis to chronic inflammatory conditions including chronic obstructive pulmonary disease, asthma, emphysema, and pneumonia, represent a major global health burden, affecting millions annually. Traditional Anatolian folk medicine has long relied on plant‐based
Golshan Zare   +5 more
wiley   +1 more source

PEG–Ursolic Acid Conjugate: Synthesis and In Vitro Release Studies

open access: yes, 2014
A highly water-soluble macromolecular compound of ursolic acid with mono-methoxypoly(ethylene glycol) (mPEG) was prepared. The physicochemical properties and stabilities under different conditions were investigated.
ZACCHIGNA, MARINA   +8 more
core   +1 more source

Pharmacological studies on the laxative effects of Fagonia indica on rodents

open access: yesBangladesh Journal of Pharmacology, 2019
This study explores the pharmacological basis for the folk use of Fagonia indica in constipation using in vivo and in vitro assays. The crude extract of F. indica contained tannins, saponins, anthraquinones, alkaloids, flavonoids, glycosides and phenols.
Muhammad Zeeshan Ali   +3 more
doaj   +1 more source

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