Results 1 to 10 of about 2,990 (179)

Pheophorbide a: State of the Art [PDF]

open access: yesMarine Drugs, 2020
Chlorophyll breakdown products are usually studied for their antioxidant and anti-inflammatory activities. The chlorophyll derivative Pheophorbide a (PPBa) is a photosensitizer that can induce significant anti-proliferative effects in several human ...
Assunta Saide   +2 more
doaj   +3 more sources

Zinc-Substituted Pheophorbide A Is a Safe and Efficient Antivascular Photodynamic Agent

open access: yesPharmaceuticals, 2022
The present study focuses on the photodynamic activity of zinc-substituted pheophorbide a against human endothelial cells. Previously, zinc pheophorbide a has been shown to be a very potent photosensitizer but also a strong albumin binder.
Andrzej Gamian, Milena J Szafraniec
exaly   +3 more sources

Effect of Slightly Acidic Electrolyzed Water on Chlorophyll Degradation in Postharvest Broccoli [PDF]

open access: yesShipin Kexue, 2023
To explore the effect of slightly acidic electrolyzed water (SAEW) on chlorophyll degradation in postharvest broccoli, the pattern of changes in the color, total chlorophyll content, chlorophyll derivative content, chlorophyll degrading enzyme activities,
HAN Ying, SUN Ying, GUO Feng, WANG Xinyu, ZHAO Anqi, WU Zhaoxia, LI Pengxia, LI Guofeng, HU Huali
doaj   +1 more source

Phototoxicity of Pheophorbide A Extracted from Gracilaria Lemaneiformis on Six Kinds of Cancer Cells

open access: yesZhongliu Fangzhi Yanjiu, 2022
Objective To investigate the photodynamic antitumor activity and chemical characteristics of pheophorbide A (PPBa)in vitro. Methods Breast cancer cells (MCF-7), lung cancer cells (A549), cervical cancer cells (HeLa), and three kinds of hepatoma cells ...
HUANG Xixiang   +5 more
doaj   +1 more source

Pheophorbide A and Paclitaxel Bioresponsive Nanoparticles as Double-Punch Platform for Cancer Therapy

open access: yesPharmaceutics, 2021
Cancer therapy is still a challenging issue. To address this, the combination of anticancer drugs with other therapeutic modalities, such as light-triggered therapies, has emerged as a promising approach, primarily when both active ingredients are ...
Francesca Moret   +8 more
doaj   +1 more source

Pheophorbide a Derivatives Exert Antiwrinkle Effects on UVB-Induced Skin Aging in Human Fibroblasts

open access: yesLife, 2021
Pheophorbide a is a chlorophyll metabolic breakdown product. This study investigated the antiwrinkle effect of pheophorbide a (PA) and its derivatives, including pyropheophorbide a (PyroPA) and pyropheophorbide a methyl ester (PyroPA-ME), on ultraviolet (
Hwa Lee, Ho-Yong Park, Tae-Sook Jeong
doaj   +1 more source

The Diatom Cylindrotheca closterium and the Chlorophyll Breakdown Product Pheophorbide a for Photodynamic Therapy Applications

open access: yesApplied Sciences, 2023
Microalgae, eukaryotic unicellular plants that are distributed worldwide, have been shown to exert anti-proliferative and anticancer activities on various human cancer cell lines.
Assunta Saide   +3 more
doaj   +1 more source

Effect of Blue Light-Emitting Diode (LED) Irradiation on Chlorophyll Metabolism in Ethylene-Degreened Early-Season Satsuma Mandarin Fruit [PDF]

open access: yesShipin Kexue, 2023
Early-season Satsuma mandarin fruit produced in Chongqing are usually harvested when the flesh reaches the acceptable internal maturity standards, while the peel is still green. In order to solve this problem, ethylene degreening treatment is widely used
CAO Tingting, ZENG Kaifang, DENG Lili
doaj   +1 more source

Two New Phloroglucinol Derivatives and Five Photosensitizing Pheophorbides from Leaves (Salam)

open access: yesNatural Product Communications, 2012
Two new phloroglucinol derivatives, identified as anthuminoate ( 1 ) and anthuminone ( 2 ), were isolated from the ichthyotoxic ethyl acetate fraction of Syzygium polyanthum leaves.
Lee Wei Har   +4 more
doaj   +1 more source

Pheophorbide Derivatives Isolated From Açaí Berries () Activate an Antioxidant Response Element In Vitro

open access: yesNatural Product Communications, 2019
Activity-guided fractionation was used to isolate and identify 2 components of the Brazilian açaí berry ( Euterpe oleracea Mart.) with the ability to induce antioxidant response element (ARE)-dependent gene transcription in human hepatoma (HepG2) cells ...
Suneel K. Kandagatla   +4 more
doaj   +1 more source

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