Results 11 to 20 of about 281 (158)

Drug-delivery and multifunction possibilities of hypocrellin photosensitizers [PDF]

open access: yesJournal of Innovative Optical Health Sciences, 2015
Photodynamic therapy (PDT) has been a routine treatment of tumors and some microvascular diseases, but clinically available photosensitizers are still scarce.
Hong Deng, Jie Xie, Jingquan Zhao
doaj   +2 more sources

Contrasting regulation of live Bacillus cereus No.1 and its volatiles on Shiraia perylenequinone production [PDF]

open access: yesMicrobial Cell Factories, 2022
Background Fungal perylenequinones (PQs) are a class of photoactivated polyketide mycotoxins produced by plant-associated fungi. Hypocrellins, the effective anticancer photodynamic therapy (PDT) agents are main bioactive PQs isolated from a bambusicolous
Rui Xu   +5 more
doaj   +2 more sources

Advancements and Future Prospects in Hypocrellins Production and Modification for Photodynamic Therapy

open access: yesFermentation
Hypocrellins (HYPs), naturally occurring 3,10-xylene-4,9-anthracene derivatives sourced from Shiraia bambusicola and Hypocrella bambusae, exhibit significant photobiological activities.
Xiang Zhang   +10 more
doaj   +2 more sources

Improvement of hypocrellin production by a new fungal source and optimization of cultivation conditions

open access: yesBiotechnology & Biotechnological Equipment, 2016
Hypocrellins is regarded as the new generation of potential photosensitizer in the photodynamic therapy. However, the current production of HA in large quantity is limited, whether extracted from the fruit bodies of Hypcrella bambusae and Shiraia ...
Xiao-Ye Shen   +3 more
doaj   +2 more sources

Photophysical Process of Hypocrellin-Based Photodynamic Therapy: An Efficient Antimicrobial Strategy for Overcoming Multidrug Resistance

open access: yesPhysics
The emergence of multidrug-resistant (MDR) bacteria and biofilm-associated infections has created a significant hurdle for conventional antibiotics, prompting the exploration of alternative strategies.
Pazhani Durgadevi   +2 more
doaj   +2 more sources

Structural Diversity of Perylenequinones Is Driven by Their Redox Behavior. [PDF]

open access: yesJ Org Chem, 2022
Hypocrellins and hypomycins are two subclasses of fungal perylenequinones with unique structural, biological, and photochemical properties. With the growing interest in these naturally occurring photosensitizers, more studies were warranted to better ...
Al Subeh ZY   +8 more
europepmc   +3 more sources

Effects of 5-Azacytidine on Growth and Hypocrellin Production of Shiraia bambusicola [PDF]

open access: yesFrontiers in Microbiology, 2018
Hypocrellins, fungal perylenequinones of Shiraia bambusicola are developed as important photodynamic therapy agents against cancers and viruses. Due to the limitation of the wild resources, the mycelium culture is a promising alternative for hypocrellin ...
Yan Jun Ma, Can Song Lu, Jian Wen Wang
doaj   +2 more sources

Effect of Structural Modification on Photodynamic Activity of Hypocrellins

open access: yesPhotochemistry and Photobiology, 2001
Aluminum ion complexed 5,8-di-Br-hypocrellin B is a new water-soluble perylenequinonoid derivative with enhanced absorption over hypocrellin B (HB) in the phototherapeutic window (600-900 nm). Electron paramagnetic resonance and 9,10-diphenyl-anthracene bleaching methods were used to investigate the photosensitizing activity of [AL2(5,8-di-Br-HB)Cl4]n ...
J, Ma, J, Zhao, L, Jiang
openaire   +3 more sources

The effect of a hypocrellin A enriched diet on egg yolk quality and hypocrellin A distributions in the meat of laying hens

open access: yesEuropean Food Research and Technology, 2011
Hypocrellins, including hypocrellin A and hypocrellin B, are natural red pigments isolated from a traditional Chinese medicine. The present work was designed to investigate the influence of dietary HA supplementations on the colour and emulsifying properties of egg yolk and HA distributions in tissues of laying hens.
Yujie Su   +5 more
openaire   +2 more sources

Natural Photosensitizers in Cancer Therapy: A Chemo-Biodiversity Perspective on Light-Activated Natural Compounds. [PDF]

open access: yesChem Biodivers
Natural photosensitizers, shaped by chemo‐biodiversity and evolution, offer diverse photoactive scaffolds for PDT. This review highlights their structure–activity relationships, photophysical properties, and nanotechnology‐based strategies to enhance efficacy, while addressing translational challenges and demonstrating how nature's molecular diversity ...
Baidoo I, Abrahamse H, George BP.
europepmc   +2 more sources

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