Results 1 to 10 of about 8,749 (218)

Hypericin enhances β-lactam antibiotics activity by inhibiting sarA expression in methicillin-resistant Staphylococcus aureus [PDF]

open access: yesActa Pharmaceutica Sinica B, 2019
Bacteremia is a life-threating syndrome often caused by methicillin-resistant Staphylococcus aureus (MRSA). Thus, there is an urgent need to develop novel approaches to successfully treat this infection.
Genzhu Wang   +8 more
doaj   +3 more sources

Hypericin Inhibit Alpha-Coronavirus Replication by Targeting 3CL Protease

open access: yesViruses, 2021
The porcine epidemic diarrhea virus (PEDV) is an Alphacoronavirus (α-CoV) that causes high mortality in infected piglets, resulting in serious economic losses in the farming industry. Hypericin is a dianthrone compound that has been shown as an antiviral
Yue Zhang, Huijie Chen, Ruili Zhang
exaly   +3 more sources

Hypericin alleviates cerebral ischemia/reperfusion injury by modulating endoplasmic reticulum stress [PDF]

open access: yesFrontiers in Pharmacology
IntroductionCerebral ischemia/reperfusion (I/R) injury remains a leading cause of neurological disability and is characterized by oxidative stress, calcium overload, inflammation, and endoplasmic reticulum (ER) stress following reperfusion.
Tingting Li, Chao Wang
doaj   +2 more sources

Hypericin in the Light and in the Dark: Two Sides of the Same Coin

open access: yesFrontiers in Plant Science, 2016
Hypericin (4,5,7,4',5',7'-hexahydroxy-2,2'-dimethylnaphtodiantrone) is a naturally occurring chromophore found in plants of the genus Hypericum, especially Hypericum perforatum L. (St.
Rastislav Jendželovský   +1 more
exaly   +3 more sources

Inhibition of dengue virus type 2 by hypericin mediated through viral envelope protein interaction [PDF]

open access: yesVirology Journal
Background Dengue fever continues to exert significant global impact, affecting populations worldwide with considerable public health and economic consequences. There is no antiviral drug for dengue. This study focuses on hypericin, a naturally occurring
Lianxin Qi   +6 more
doaj   +2 more sources

Detection of a Water-Soluble Hypericin Formulation in Glioblastoma Tissue with Fluorescence Lifetime and Intensity Using a Dual-Tap CMOS Camera System [PDF]

open access: yesDiagnostics
Background: High hypericin-loaded polyvinylpyrrolidone (HHL-PVP) constitutes a novel approach to utilize the promising characteristics of hypericin for photodynamic diagnosis (PDD) and therapy (PDT) of brain tumors in an orally bioavailable formulation ...
Mario Mischkulnig   +15 more
doaj   +2 more sources

Foliar application of yeast extract mitigates water deficit stress and elicits hypericin and phenolic production in Hypericum perforatum L [PDF]

open access: yesScientific Reports
Yeast extract has emerged as a bio-elicitor capable of modulating secondary metabolism and stress tolerance in plants, but its impact on St John’s Wort (Hypericum perforatum L.) remains unexplored.
Rayhaneh Amooaghaie, Nafiseh Rajaie
doaj   +2 more sources

Inhibition Effect and Molecular Mechanism of Hypericin on Xanthine Oxidase

open access: yesShipin gongye ke-ji, 2022
Dietary flavonoid has been reported to possess a high potential for inhibition xanthine oxidase (XOD). Herein, hypericin was investigated for its inhibition effect and interaction mechanism on XOD by enzyme inhibition kinetics, multi-spectroscopy and ...
Min WANG   +4 more
doaj   +1 more source

St John's Wort (Hypericum perforatum L.) photomedicine: hypericin-photodynamic therapy induces metastatic melanoma cell death. [PDF]

open access: yesPLoS ONE, 2014
Hypericin, an extract from St John's Wort (Hypericum perforatum L.), is a promising photosensitizer in the context of clinical photodynamic therapy due to its excellent photosensitizing properties and tumoritropic characteristics.
Britta Kleemann   +4 more
doaj   +1 more source

Inhibitory Activity and Mechanism Investigation of Hypericin as a Novel α-Glucosidase Inhibitor

open access: yesMolecules, 2021
α-glucosidase is a major enzyme that is involved in starch digestion and type 2 diabetes mellitus. In this study, the inhibition of hypericin by α-glucosidase and its mechanism were firstly investigated using enzyme kinetics analysis, real-time ...
Qi Dong, Na Hu, Huilan Yue, Honglun Wang
doaj   +1 more source

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