Results 21 to 30 of about 6,774 (178)

An iridoid, lamiide, its extraction method from Phlomis bruguieri, and evaluation of its antioxidant capacity

open access: yesInfectious Diseases and Herbal Medicine, 2021
Phlomis bruguieri is a native plant in Iran, which deserves phytochemical study. The aim of this study was evaluation of its iridoid contents along with its antioxidant capacity.
Behzad Zolfaghari   +3 more
doaj   +1 more source

Three New Iridoid Derivatives Have Been Isolated from the Stems of Neonauclea reticulata (Havil.) Merr. with Cytotoxic Activity on Hepatocellular Carcinoma Cells

open access: yesMolecules, 2018
Three new iridoids, namely neonanin A (1), neonanin B (2) and neoretinin A (3), as well as twelve known compounds, 6-hydroxy-7-methyl-1-oxo-4-carbomethoxyoctahydrocyclopenta[c]pyran (4), 4-epi-alyxialactone (5), loganetin (6), loganin (7), phenylcoumaran-
Fang-Pin Chang   +8 more
doaj   +1 more source

Generation of the Camptothecin Scaffold by a Flavin‐Catalyzed Photooxidative Skeletal Reorganization

open access: yesAngewandte Chemie, EarlyView.
The biosynthetic pathway of the anticancer drug precursor camptothecin involves an enigmatic skeletal reorganization from a 6/5/6 tetrahydro‐β‐carboline to a 6/6/5 pyrroloquinoline ring system. Here, we show that this transformation can be achieved by photooxidation with flavin cofactors, such as flavin mononucleotide (FMN) as catalysts.
Shenyu Liu   +6 more
wiley   +2 more sources

Taxonomic Revision and Clinical Importance of Phlomoides Genus: A Comprehensive Review [PDF]

open access: yesPharmaceutical Sciences
Phlomoides (L.) Moench belongs to the Lamiaceae family. It has recently undergone significant changes in taxonomy, with many species from Eremostachys and Phlomis added to the genus.
Samin Mohammadi   +6 more
doaj   +1 more source

Host Plant Effects on Immune Response Across Development of a Specialist Caterpillar

open access: yesFrontiers in Ecology and Evolution, 2019
Some herbivorous insects sequester chemicals from their host plants, which can serve as a defense against predators. However, sequestration can also be costly, impacting immunological responses important for other types of natural enemies, such as ...
Adrian L. Carper   +2 more
doaj   +1 more source

Distribution of Naturally Occurring Anthraquinones, Iridoids and Flavonoids from Morinda genus: Chemistry and Biological activity

open access: yesWalailak Journal of Science and Technology, 2012
The present review covers chemistry and bioactivities of anthraquinones, iridoids, and flavonoids from the Morinda genus. The plants of Morinda species, belonging to the Rubiaceae family, have been used as traditional folk medicine with anti-bacterial ...
Wong PHAKHODEE
doaj   +1 more source

Transcriptome‐based identification and functional characterization of iridoid synthase involved in monotropein biosynthesis in blueberry

open access: yesPlant Direct, 2023
Blueberries (Vaccinium spp.) are well known for their nutritional quality, and recent work has shown that Vaccinium spp. also produce iridoids, which are specialized metabolites with potent health‐promoting benefits.
Lovely Mae F. Lawas   +4 more
doaj   +1 more source

Iridoids and iridoid glucosides from fruits of Crescentia cujete [PDF]

open access: yesPhytochemistry, 1997
Abstract Further study on the constituents of the fruits of Crescentia cujete afforded 16 iridoids and iridoid glucosides. The structures of eight new compounds, named crescentins I–V and crescentosides A, B and C, were determined by analysis of their spectral data.
Tetsuo Kaneko   +4 more
openaire   +1 more source

New Iridoid Derivatives from the Fruits of Cornus officinalis and Their Neuroprotective Activities

open access: yesMolecules, 2019
Three previously undescribed iridoids, cornusfurals A⁻C, were isolated from the ethanolic extracts of fruits of Cornus officinalis. Their structures were elucidated by spectroscopic methods, including one-dimensional and two-dimensional nuclear ...
Lin-lin Ji   +6 more
doaj   +1 more source

Protective effects of paederoside in rotenone-induced cellular models of Parkinson’s disease

open access: yesFrontiers in Cell and Developmental Biology
IntroductionParkinson’s disease (PD) is the most prevalent age-related neurodegenerative motor disorder. It affects approximately 1% of individuals aged 65 and older, with its prevalence increasing significantly with advancing age.
Juan Lang   +3 more
doaj   +1 more source

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