Results 31 to 40 of about 45,296 (245)

Secondary Metabolites with Anti-Inflammatory Activities from an Actinobacteria Herbidospora daliensis

open access: yesMolecules, 2022
Bioassay-guided fractionation of extracts derived from solid cultures of a Herbidospora daliensis originating from Taiwan led to the isolation of five new compounds, for which we propose the name herbidosporadalins A–E (1–5), one isolated for the first ...
Jih-Jung Chen   +2 more
doaj   +1 more source

Progress in Antimelanoma Research of Natural Triterpenoids and Their Derivatives: Mechanisms of Action, Bioavailability Enhancement and Structure Modifications

open access: yesMolecules, 2023
Melanoma is one of the most dangerous forms of skin cancer, characterized by early metastasis and rapid development. In search for effective treatment options, much attention is given to triterpenoids of plant origin, which are considered promising drug ...
Marta Grudzińska   +4 more
doaj   +1 more source

Advances in Preventive Therapy for Estrogen-Receptor-Negative Breast Cancer. [PDF]

open access: yes, 2014
Preventing breast cancer is an effective strategy for reducing breast cancer deaths. The purpose of chemoprevention (also termed preventive therapy) is to reduce cancer incidence by use of natural, synthetic, or biological agents.
Brown, Powel H, Litzenburger, Beate C
core   +1 more source

Determination of the Five Main Terpenoids in Different Tissues of Wolfiporia cocos

open access: yesMolecules, 2018
Wolfiporia cocos is a fungus containing triterpenoids and is widely used as an herbal medicine. However, it is unknown whether its main triterpenoid contents differ in different tissues.
Ming Fu   +5 more
doaj   +1 more source

Supercritical fluid extraction of Eucalyptus globulus bark: a promising approach for triterpenoid production [PDF]

open access: yes, 2012
Eucalyptus bark contains significant amounts of triterpenoids with demonstrated bioactivity, namely triterpenic acids and their acetyl derivatives (ursolic, betulinic, oleanolic, betulonic, 3-acetylursolic, and 3-acetyloleanolic acids). In this work, the
Armando J. D. Silvestre   +45 more
core   +2 more sources

Antifeedant Triterpenoids from the Seeds and Bark of Lansium domesticum cv Kokossan (Meliaceae)

open access: yesMolecules, 2011
Two tetranortriterpenoids, kokosanolide A (1) and C (2) were isolated from the seeds and three onoceranoid-type triterpenoids: kokosanolide B (3), 8,14-secogammacera-7,14-diene-3,21-dione (4) and a 1.5:0.5 mixture of 8,14-secogammacera-7,14(27)-diene-3 ...
Roekmiati Tjokronegoro   +5 more
doaj   +1 more source

Fermentation and purification strategies for the production of betulinic acid and its lupane-type precursors in Saccharomyces cerevisiae [PDF]

open access: yes, 2017
Microbial production of plant derived, biologically active compounds has the potential to provide economic and ecologic alternatives to existing low productive, plant-based processes. Current production of the pharmacologically active cyclic triterpenoid
Arnezeder   +48 more
core   +1 more source

Mechanochemical-Assisted Extraction and Pharmacological Study of Triterpenoids from Antrodia Camphorata

open access: yesApplied Sciences, 2019
Antrodia camphorata (AC) is a precious medicinal mushroom native to Taiwan and famous for its excellent pharmacological activity. A ball mill assisted mechanochemical extraction method was applied in the extraction of triterpenoids from Antrodia ...
Rongjun He   +4 more
doaj   +1 more source

Natural Products as Geroprotective Modulators in Diabetic Nephropathy: A Mechanistic Framework Integrating Aging Hallmarks and the AMPK–SIRT1–Nrf2 Axis

open access: yesAging and Cancer, EarlyView.
Natural products target the aging kidney in diabetic nephropathy by restoring the AMPK–SIRT1–Nrf2 axis, reducing oxidative stress, inflammation, fibrosis, and cellular senescence while enhancing mitochondrial biogenesis and antioxidant defenses.
Sherif Hamidu   +8 more
wiley   +1 more source

Chemical derivatization strategies for enhancing the HPLC analytical performance of natural active triterpenoids

open access: yesJournal of Pharmaceutical Analysis
Triterpenoids widely exist in nature, displaying a variety of pharmacological activities. Determining triterpenoids in different matrices, especially in biological samples holds great significance. High-performance liquid chromatography (HPLC) has become
Xiao-Feng Huang   +5 more
doaj   +1 more source

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