Results 31 to 40 of about 28,859 (302)

Brominated Selinane Sesquiterpenes from the Marine Brown Alga Dictyopteris divaricata

open access: yes, 2009
Two new brominated selinane sesquiterpenes, 1-bromoselin-4(14),11-diene (1) and 9-bromoselin-4(14),11-diene (2), one known cadinane sesquiterpene, cadalene (3), and four known selinane sesquiterpenes, α-selinene (4), β-selinene (5), β-dictyopterol (6 ...
Nai-Yun Ji   +11 more
core   +1 more source

Sesquiterpenes in cancer therapy [PDF]

open access: yes, 2017
Charles University Faculty of Pharmacy in Hradec Králové Department of Biochemical Sciences Candidate: Mgr. Martin Ambrož Supervisor: Prof. RNDr. Lenka Skálová, Ph.D. Title of Doctoral Thesis: Sesquiterpenes in cancer therapy.
Ambrož, Martin
core   +1 more source

Chemical Composition, Antioxidant and Cytotoxicity Activities of Leaves, Bark, Twigs and Oleo-Resin of Dipterocarpus alatus

open access: yesMolecules, 2019
Dipterocarpus alatus (Dipterocarpaceae) is a medicinal plant whose use is well known for the treatment of genito-urinary diseases. However, there is no report of its cytotoxic potential.
Chawalit Yongram   +3 more
doaj   +1 more source

β‐Elemene Rescues Radiation‐Induced Enteritis by Orchestrating a Host‐Microbiome Circuit That Fuels Epigenetic DNA Repair

open access: yesAdvanced Science, EarlyView.
This study elucidates that β‐elemene promotes cellular uptake of L. gasseri‐derived lactate by enhancing the membrane translocation of MCT1 in a CD147‐dependent manner. Intracellular lactate, through the lactylation of RBBP4 at the K26 site, recruits EP300 to the promoter regions of downstream genes (POLD1/POLD3), catalyzing H3K27ac modification.
Jiancheng He   +10 more
wiley   +1 more source

Identification of volatile compounds from three species of Cyathodium (Marchantiophyta: Cyathodiaceae) and Leiosporoceros dussii(Anthocerotophyta: Leiosporocerotaceae) from Panama, and C. foetidissimum from Costa Rica.

open access: yesBoletín de la Sociedad Argentina de Botánica, 2017
Cyathodium is a thalloid marchantialean liverwort with five species reported for the Neotropics. Three species that occur in Panama (C. bischlerianum, C. spruceanum, C. cavernarum) and one from Costa Rica (C.
Noris Salazar Allen   +4 more
doaj   +1 more source

Isolamento de metabólitos halogenados de Laurencia catarinensis e Laurencia dendroidea de Santa Catarina, Brasil [PDF]

open access: yes, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Programa de Pós-Graduação em Farmácia, Florianópolis, 2014.Algas vermelhas do complexo Laurencia são encontradas em todo o mundo e produzem uma enorme ...
Wanke, Tauana
core  

Sesquiterpenes and oxygenated sesquiterpenes dominate the emissions of downy birches [PDF]

open access: yes, 2020
Abstract. Even though isoprene and monoterpene (MT) emissions of boreal needle trees have been studied quite intensively, there is less knowledge on the emissions of broadleaved deciduous trees and emissions of larger terpenes and oxygenated volatile organic compounds (OVOCs).
Heidi Hellén   +7 more
openaire   +1 more source

S100A14 in Tumor‐Derived EVs Targets PIAS3 to Reprogram Astrocytes and Induce Immunosuppressive Microenvironment Promoting Brain Metastasis and Germacrone Reversal Effect

open access: yesAdvanced Science, EarlyView.
This study identifies S100A14 in tumor‐derived exosomes as a key driver of brain metastasis. S100A14 targets PIAS3 in astrocytes, activating STAT3 signaling and promoting immunosuppressive MDSCs recruitment via chemokine secretion. Germacrone, a natural compound, binds S100A14 to disrupt this axis, effectively inhibiting brain metastasis with low ...
Qian Feng   +13 more
wiley   +1 more source

Variation of essential oil composition of Tapirira guianensis Aubl. (Anacardiaceae) from two sandbank forests, north of Brazil

open access: yesQuímica Nova, 2014
Tapirira guianensis (Anacardiaceae) is used in traditional medicine and is important for the recovery of degraded areas and riparian forests because the T. guianensis fruits are highly consumed by wildlife.
Maria das Graças Bichara Zoghbi   +3 more
doaj   +1 more source

Structure Elucidation and Total Synthesis of Granolides A–C: Ethyl‐branched Sesquiterpenes From the Tropical Frog Gephyromantis granulatus

open access: yesChemistry – A European Journal, EarlyView.
Males of the tropical frog Gephyromantis granulatus carry unique ethyl‐branched sesquiterpenoid macrolactones in their scent glands. Their structure elucidation was performed by GC/MS, leading to the proposed structures of the granolides. A flexible enantioselective synthesis confirmed the structures and allowed determination of their absolute ...
Johanna Kuhn   +2 more
wiley   +1 more source

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