Results 41 to 50 of about 20,067 (234)

Dispersive liquid–liquid microextraction and injection-port derivatization for the determination of free lipophilic compounds in fruit juices by gas chromatography-mass spectrometry [PDF]

, 2017
A method consisting of dispersive liquid–liquid microextraction (DLLME) followed by injection-port derivatization and gas chromatography-mass spectrometry (GC–MS) for the analysis of free lipophilic compounds in fruit juices is described.
Balcells Fluvià, Mercè, Canela i Garayoa, Ramon, Eras i Joli, Jordi, Marsol i Vall, Alexis   +3 more
core   +1 more source

Tigogenin and ursolic acid fromCestrum diurnum Linn. [PDF]

Experientia, 1964
AusCestrum diurnum Linn. wurden Ursolsaure und Tigonin, [α]D23 −48° (Pyridine) und aus Tigonin Tigogenin durch Hydrolyse isoliert bzw. erhalten.
R N, Chakravarti, S, Datta, M N, Mitra
openaire   +2 more sources

The potential chemo preventive effect of ursolic acid isolated from Paulownia tomentosa, against N-diethylnitrosamine: initiated and promoted hepatocarcinogenesis

Heliyon, 2019
The present study discusses the isolation of ursolic acid from the chloroform extract of Paulownia tomentosa (Thunb) Steud fruits and its cytotoxic effect has been assessed in-vitro was performed in different cells lines (A-549, MCF-7, HepG2) and in-vivo
Sanaa A. Ali, Nabaweya A. Ibrahim, Magdy M.D. Mohammed, Seham El-Hawary, Esraa A. Refaat   +4 more
doaj   +1 more source

Antigenotoxic effects of quercetin, rutin and ursolic acid on HepG2 cells : evaluation by the comet assay [PDF]

, 2008
In the present study, the chemoprotective effects of quercetin, rutin and ursolic acid on tert-butyl hydroperoxide (t-BHP)-induced DNA damage in a human hepatoma cell line (HepG2) were investigated by the comet assay.
Ferreira, Manuel Fernandes, Lima, Cristóvão F., Pereira, M. L., Ramos, Alice A., Wilson, Cristina Pereira   +4 more
core   +1 more source

Evaluation of the Dual Impact of Nanotechnologies on Health and Environment Through Alternative Bridging Models

Advanced Healthcare Materials, EarlyView.
This review explores how alternative invertebrate and small‐vertebrate models advance the evaluation of nanomaterials across medicine and environmental science. By bridging cellular and organismal levels, these models enable integrated assessment of toxicity, biodistribution, and therapeutic performance.
Marie Celine Lefevre, Margherita Bernardeschi, Matteo Battaglini, Gianni Ciofani   +3 more
wiley   +1 more source

Ursolic Acid Induces Beneficial Changes in Skeletal Muscle mRNA Expression and Increases Exercise Participation and Performance in Dogs with Age-Related Muscle Atrophy

Animals
Muscle atrophy and weakness are prevalent and debilitating conditions in dogs that cannot be reliably prevented or treated by current approaches. In non-canine species, the natural dietary compound ursolic acid inhibits molecular mechanisms of muscle ...
Scott M. Ebert, Celine S. Nicolas, Paul Schreiber, Jaime G. Lopez, Alan T. Taylor, Andrew R. Judge, Sarah M. Judge, Blake B. Rasmussen, John J. Talley, Christophe A. Rème, Christopher M. Adams   +10 more
doaj   +1 more source

An unusual 2,3-secotaraxerene and other cytotoxic triterpenoids from pleiocarpa pycnantha (apocynaceae) leaves collected from Nigeria [PDF]

, 2014
Three known triterpenoids, namely ursolic acid (1), and the 27-E- and 27-Z-pcoumaric esters of ursolic acid (compounds 2, 3), were isolated together with a new triterpene 2,3-seco-taraxer-14-en-2,3-lactone [pycanocarpine (4)] from an ethanolic extract
Ahmed A. Hussein, Emmanuel Iwuoha, Ivan Green, Mervin Meyer, Olubunmi A. Omoyeni   +4 more
core   +3 more sources

Protection and Delivery of Phytochemicals from Passive Encapsulation to Guaranteed Self‐Assembly Induced by Amyloid Template for Chronic Disease Prevention via Modulating Microbial‐Host Crosstalk

Advanced Science, EarlyView.
ABSTRACT The rising incidence of chronic diseases globally has drawn widespread attention to phytochemicals, which exert targeted preventive and alleviating effect by modulating gut microbiota; thus, a potential strategy for precision nutritional interventions is offered.
Shiqi Bai, Siying Cheng, Fengguang Ma, Xiaorong Zhang, Jianan Huang, Zhonghua Liu, Bing Hu   +6 more
wiley   +1 more source

Bioactive metabolites of Streptomyces misakiensis display broad-spectrum antimicrobial activity against multidrug-resistant bacteria and fungi

Frontiers in Cellular and Infection Microbiology, 2023
BackgroundAntimicrobial resistance is a serious threat to public health globally. It is a slower-moving pandemic than COVID-19, so we are fast running out of treatment options.PurposeThus, this study was designed to search for an alternative biomaterial ...
Rewan Abdelaziz, Yasmine H. Tartor, Ahmed B. Barakat, Gamal EL-Didamony, Marwa M. Gado, Adina Berbecea, Habil dr. Isidora Radulov   +6 more
doaj   +1 more source

Inherently fluorescent and porous zirconia colloids : preparation, characterization and drug adsorption studies [PDF]

, 2015
Porous, fluorescent zirconia particles of nearly 380 nm diameter were prepared without template molecules or labeling dyes. The porous structure is the result of aggregation-induced particle formation.
Balogh, Lajos, Bóta, Attila, Császár, Barbara, Czégény, Zsuzsanna, Dabasi, Gabriella, Debreczeni, Balázs, Drotár, Eszter, Jakab, Emma, Kiss, Éva, Klébert, Szilvia, Mihály, Judith, Naszályi Nagy, Lívia, Polyák, András, Szigyártó, Imola Csilla, Wacha, András   +14 more
core   +1 more source