Results 101 to 110 of about 2,331 (162)

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

Scientific 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   +1 more source

Hypericin-Mediated Antimicrobial Photodynamic Therapy in Dentistry: A Systematic Review of Applications Against Oral Biofilms and Infections

Pharmaceutics
Background: Oral biofilms are a major etiological factor in dental caries, periodontal disease, peri-implantitis, and endodontic infections. Increasing antimicrobial resistance and the limitations of conventional therapies have intensified interest in ...
Radosław Turski, Maciej Dobrzyński, Aleksandra Warakomska, Magdalena Pietrzko, Iwona Gregorczyk-Maga, Dariusz Skaba, Rafał Wiench   +6 more
doaj   +1 more source

Melanoma response mechanisms to hypericin-PDT.

, 2014
Hypericin (HYP) was taken up by melanoma cells and localized to various intracellular organelles, including the endoplasmic reticulum, mitochondria, lysosomes and melanosomes.
Dirk Lang (606352), Benjamin Loos (606351), Britta Kleemann (606350), Thomas J. Scriba (76847), Lester M. Davids (606353)   +4 more
core   +1 more source

HYPERICIN AND ITS PHOTODYNAMIC ACTION [PDF]

Photochemistry and Photobiology, 1986
N, Durán, P S, Song
openaire   +2 more sources

Hypericin [PDF]

, 2020
openaire   +1 more source

Hypericinates preparation and comparative study of cell viability with hypericin

Photodiagnosis and Photodynamic Therapy, 2015
Gislaine Patricia de Andrade, Giselle Cerchiaro, Anderson Orzari Ribeiro   +2 more
openaire   +1 more source

Comparative studies of photophysical and biological properties of hypericin and hypericin-glucamine

Photodiagnosis and Photodynamic Therapy, 2011
C. Bernal, T.T. Tominaga, A.O. Ribeiro, H. Imasato, J.R. Perussi   +4 more
openaire   +1 more source

The Multifaceted Photocytotoxic Profile of Hypericin

Molecular Pharmaceutics, 2009
Photodynamic therapy (PDT) is an established anticancer treatment employing a phototoxin (photosensitizer), visible light and oxygen. The latter is photochemically converted into reactive oxygen species, which are highly toxic to the cells. Hypericin, a natural pigment of hypericum plants, is prominent among photosensitizers. The unique perylenequinone
Theodossis Theodossiou, Peter De Witte, Patrizia Agostinis   +2 more
exaly   +4 more sources

Hypericin and hypericin-like substances: Analytical problems

, 1998
Abstract Hypericin is a substance derived from Hypericum perforatum L., a plant utilized in the production of extracts used to aromatize alcoholic beverages and soft drinks and limited in food and beverages by the E.E.C. Directives on Flavouring. This paper deals with the H.P.L.C.
F. Tateo, S. Martello, E. Lubian, M. Bononi   +3 more
openaire   +3 more sources

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Hypericin in phototherapy

Journal of Photochemistry and Photobiology B: Biology, 1996
We describe the first local use of hypericin as photosensitizer for photodynamic therapy in a patient with recurrent malignant mesothelioma. Hypericin is a polycyclic quinone, which has been shown to possess in vivo and in vitro antiretroviral and photosensitizing activity; moreover, it is used in depressive disorders.
H, Koren, G M, Schenk, R H, Jindra, G, Alth, R, Ebermann, A, Kubin, G, Koderhold, M, Kreitner   +7 more
exaly   +3 more sources