Results 31 to 40 of about 97,065 (262)

PHYTOCHEMICAL STUDIES ON ASTER SQUAMATUS L. PART III: CONSTITUENTS OF THE LEAVES [PDF]

open access: yesBulletin of Pharmaceutical Sciences. Assiut University, 1986
From the air- dried powdered leaves of Aster squamatus L., we isolated and identified quercetin-3-methyl ether, quercetin-4'-methyl-ether, Kaempferol, quercetin, quercetin-3-O- diarabinoside, quercetin-3-methyl ether-4'-O- dirhamnoside, a saturated ...
S. Ross, H. Sayed
doaj   +1 more source

Negotiating in a Foreign Land: Understanding the Curious Interactions Between Intracellular Mitochondria and Internalized Nanoparticles

open access: yesAdvanced Materials Interfaces, EarlyView.
Therapeutic nano‐drug delivery systems interact with cellular mitochondria in a multitude of ways. While the complexity of such interactions disrupts the mitochondrial electron transport chain and increases reactive oxygen species production, thereby contributing to nanoparticle toxicity, they also present unique theranostic opportunities in diseases ...
Sourav Bhattacharjee
wiley   +1 more source

Effect of matter other than grapes on quercetin evolution and key wine parameters

open access: yesIVES Technical Reviews
Quercetin instability is a practical concern in red wines because low-solubility quercetin aglycone can form haze or crystals during storage. This study evaluated whether sub-threshold levels of matter other than grapes (MOG; < 3 % w/v), as encountered ...
Shuyan Liu   +3 more
doaj   +1 more source

Quercetin inhibits LPS-induced macrophage migration by suppressing the iNOS/FAK/paxillin pathway and modulating the cytoskeleton

open access: yesCell Adhesion & Migration, 2019
The natural flavonoid quercetin has antioxidant, anti-inflammatory, and anticancer effects. We investigated the effect of quercetin on lipopolysaccharide (LPS)-induced macrophage migration.
Shuna Cui   +5 more
doaj   +1 more source

Aggregation‐Controlled Vat Dyeing of Meta‐Aramid Fibers: Mechanistic Insights and Suppression of Surface Dye Deposition

open access: yesAdvanced Materials Interfaces, EarlyView.
Supramolecular aggregation governs the interfacial adsorption, diffusion, and fixation of anthraquinone‐based vat dyes in meta‐aramid fibers. By correlating reduction chemistry, aggregate formation, and fiber microstructure, a multiscale mechanism for aggregation‐controlled dyeing is established, providing an effective strategy to suppress surface dye ...
Jisiyuan Qin   +8 more
wiley   +1 more source

Quercetin suppresses cyclooxygenase-2 expression and angiogenesis through inactivation of P300 signaling.

open access: yesPLoS ONE, 2011
Quercetin, a polyphenolic bioflavonoid, possesses multiple pharmacological actions including anti-inflammatory and antitumor properties. However, the precise action mechanisms of quercetin remain unclear.
Xiangsheng Xiao   +6 more
doaj   +1 more source

Engineering Approaches to Modify Immunomodulatory Functions of Mesenchymal Stromal Cells (MSCs): Tissue Regeneration and Clinical Application

open access: yesAdvanced Science, EarlyView.
Mesenchymal stromal cells (MSCs) show promise for treating immune‐related disorders through immunomodulation and tissue regeneration. This review gives a brief overview of current clinical approval of MSC therapies. It also discussed how bioengineering, including genetic modification, biomaterial delivery, extracellular vesicles, and iPSC‐derived MSCs,
Sichen Yang   +6 more
wiley   +1 more source

Preparation and Characterization of Quercetin Phospholipid Complex and Its Effect on the Oxidative Stability of Walnut Oil

open access: yesShipin gongye ke-ji
To expand the application of quercetin, quercetin phospholipid complexes were optimally prepared by the solvent method. The complexes were structurally characterized and evaluated for their antioxidant capacity in vitro, and the effect of the complexes ...
Yan XIANG   +5 more
doaj   +1 more source

Senolytic Therapy as a Preventive Strategy for Spine Degeneration and Pain

open access: yesAdvanced Science, EarlyView.
Cellular senescence promotes inflammation, tissue degeneration, and chronic back pain. In sparc‐null mice, early oral administration of the senolytic agents o‐vanillin and RG‐7112 reduced senescent cell burden and pro‐inflammatory SASP signaling across intervertebral discs, endplates, vertebral bone, and spinal cord.
Saber Ghazizadeh   +7 more
wiley   +1 more source

Evaluation of the Mrp2-mediated flavonoid-drug interaction potential of quercetin in rats and in vitro models

open access: yesAsian Journal of Pharmaceutical Sciences, 2019
Quercetin is a biologically active flavonoid that has been used as a popular health supplement. It is reported that quercetin may cause flavonoid-drug interaction mediated by P-glycoprotein, the most predominant efflux transporter.
Ju-Hee Oh, Joo Hyun Lee, Young-Joo Lee
doaj   +1 more source

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