Results 71 to 80 of about 42,028 (236)

Transaminase Enzyme and Liver Histological Profile of Mice Administered Extract of Pegagan (Centella Asiatica (L.) Urban) [PDF]

open access: yes, 2011
The purpose of this study was to determine whether pegagan caused toxic effects on the liver. This study used completely randomized design with four treatments, ie 125, 200, 275 mg/kg BW and control, each treatment consisting of six replicates. Variables
Adi, T. T. (T)   +2 more
core  

Unveiling protective mechanisms of wild olive (acebuche) oil in retinal pigment epithelial cells with hypertensive phenotype

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Circulating extracellular vesicles (EVs) derived from acebuche (ACE) oil‐ and extra virgin olive oil (EVOO)‐fed mice modulate nitric oxide (NO) metabolism in the retinal pigment epithelial cell line (ARPE19) with a hypertensive phenotype induced by angiotensin II (AngII).
Álvaro Santana‐Garrido   +6 more
wiley   +1 more source

Distribution of miliacin (olean-18-en-3β-ol methyl ether) and related compounds in broomcorn millet (Panicum miliaceum) and other reputed sources: Implications for the use of sedimentary miliacin as a tracer of millet [PDF]

open access: yes, 2013
International audienceUsing sedimentary miliacin (olean-18-en-3β-ol methyl ether) as a molecular tracer of the history of Panicum miliaceum (broomcorn millet) cultivation depends upon broomcorn millet being sedimentary miliacin's dominant source. It also
Bossard, Nicolas   +6 more
core   +3 more sources

Triterpenes from Kadsura coccinea

open access: yesJournal of Traditional and Complementary Medicine, 2012
In vitro anti-allergic screening of medicinal herbal extracts revealed that the 80% acetone extract of the rhizome of Kadsura coccinea inhibited nitric oxide (NO) production in a lipopolysaccharide (LPS) and recombinant mouse interferon-γ (IFN-γ) activated murine macrophage like cell line, RAW264.7. Further fractionation of the EtOAc extract led to the
Hai-Xia Li   +5 more
openaire   +3 more sources

Phylogenetic history shapes the composition of floral scents in a specialized pollination mutualism

open access: yesNew Phytologist, Volume 250, Issue 5, Page 3428-3443, June 2026.
Summary Most studies of the chemical ecology of plant–pollinator interactions emphasize the role of pollinator‐mediated selection in shaping floral scent composition. Nevertheless, phylogeny may constrain the metabolic pathways underlying these profiles, thereby influencing the evolutionary trajectory of the emitted signals.
Li Cao   +8 more
wiley   +1 more source

Triterpenes from Euphorbia rigida

open access: yesPharmacognosy Research, 2010
Phytochemical studies of the aerial parts of Euphorbia rigida afforded three triterpenes: betulin (1), cycloart-23Z-ene-3, 25-diol (2) and cycloartan-3, 24, 25-triol (3), firstly isolated from this plant. The structures and relative stereochemistry were determined on the basis of extensive spectroscopic analyses, including 1D and 2D NMR experiments (1H
Gherraf, Noureddine   +9 more
openaire   +3 more sources

Manganese Porphyrin‐Catalyzed One‐Pot Oxidation of Lupeol: Efficient Conversion of Its Terminal Alkene Into Carboxylic Acids

open access: yesChemistry &Biodiversity, Volume 23, Issue 5, May 2026.
Manganese porphyrin catalyst enables green PhI(OAc)2 oxidation of lupeol in ethyl acetate, achieving 94% conversion and the formation of eight products, including selective C20 olefin transformations and one‐pot conversion of the isopropenyl group to carboxylic acids, all without the need of C3‐OH protection step.
Leila Renan Oliveira   +5 more
wiley   +1 more source

Second‐Generation Crystalline Sponges Enabling Consistent Structure Analysis Under Standardized Conditions for Diverse Molecules

open access: yesAngewandte Chemie, Volume 138, Issue 17, 20 April 2026.
The second‐generation crystalline sponge method allows structurally diverse molecular guests to crystallize under standardized crystallization conditions. The key is the predominant packing type of cages and anions in crystals. ABSTRACT Crystallization is typically highly sensitive to even minor structural differences in target molecules.
Wei He, Hiroki Takezawa, Makoto Fujita
wiley   +2 more sources

Three Novel Triterpenoids from Taraxacum officinale Roots

open access: yesMolecules, 2016
Three novel lupane-, bauerane-, and euphane-type triterpenoids (1–3), in addition to seven known triterpenoids (4–10)—18β,19β-epoxy-21β-hydroxylupan-3β-yl acetate (4), 21-oxolup-18-en-3β-yl acetate (5), betulin (6), officinatrione (7), 11α-methoxyolean ...
Takashi Kikuchi   +4 more
doaj   +1 more source

Rosa roxburghii‐Derived Exosome‐Like Nanovesicles Alleviate Ulcerative Colitis Based on Th17/Treg Immune Balance and Gut Microbiota Modulation

open access: yesFood Frontiers, Volume 7, Issue 3, May 2026.
Rosa roxburghii‐derived exosome‐like nanovesicles target the intestine, repairing barriers, regulating gut microbiota, balancing Th17/Treg, and combating oxidative stress/inflammation to alleviate colitis, a promising UC therapy. ABSTRACT Plant‐derived nanovesicles (PDVs), an innovative and bioactive form of natural products, are key mediators of ...
Yuanyuan Wang   +8 more
wiley   +1 more source

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