Results 81 to 90 of about 13,793 (186)

Effect of 5-aminolevulinic acid-based photodynamic therapy via reactive oxygen species in human cholangiocarcinoma cells

open access: yesInternational Journal of Nanomedicine, 2011
Cy Hyun Kim1,2, Chung-Wook Chung1, Kyung Ha Choi1, Jin-Ju Yoo1, Do Hyung Kim1,2, Young-IL Jeong1, Dae Hwan Kang1,21National Research and Development Center for Hepatobiliary Cancer, Research Institute for Convergence of Biomedical Science and Technology,
Kang DH   +6 more
doaj  

Effects of Light Quality on the Chlorophyll Degradation Pathway in Rice Seedling Leaves

open access: yesNotulae Botanicae Horti Agrobotanici Cluj-Napoca, 2016
The objective of this study was to investigate the dynamics of chlorophyll (Chl), biosynthetic intermediates (protoporphyrin IX, magnesium protoporphyrin IX, and protochlorophyllide), degradation intermediates [chlorophyllide (Chlide), pheophytin (Phe ...
Chang-Chang CHEN   +4 more
doaj   +1 more source

Peroxidase and Photoprotective Activities of Magnesium Protoporphyrin IX

open access: yesJournal of Microbiology and Biotechnology, 2014
Magnesium-protoporphyrin IX (Mg-PPn), which is formed through chelation of protoporphyrin IX (PPn) with Mg ion by Mg chelatase, is the first intermediate for the (bacterio)chlorophyll biosynthetic pathway. Interestingly, Mg-PPn provides peroxidase activity (approximately 4 × 10(-2) units/micrometer) detoxifying H2O2 in the presence of electron donor(s).
Eui-Jin, Kim   +2 more
openaire   +2 more sources

Synthesis of new derivatives of protoporphyrin IX

open access: yesТонкие химические технологии, 2010
In the course of searching new highly active substances which are prospective for treating tumors and some other types of widespread diseases the synthesis of protoporphyrin IX bearing the benzodiazepine residue, was performed.
V. Yu. Pavlov   +2 more
doaj  

Mechanism of Penoxsulam’s Effect on Chlorophyll Synthesis and the Metabolism of Foxtail Millet

open access: yesPlants
Foxtail millet is a characteristic miscellaneous grain crop with many benefits in current agricultural production and is crucial in the adjustment of the planting structure and the sustainable development of dry farming.
Tingting Chen   +9 more
doaj   +1 more source

Intraoperative fluorescence diagnosis in patients with brain metastases (medical technology)

open access: yesBiomedical Photonics, 2014
The technique of intraoperative fluorescence diagnosis with alasens for brain metastases includes visual assessment of alasens-induced protoporphyrin IX fluorescence and local spectroscopy.
A. M. Zaytsev   +2 more
doaj  

Effects of Porphyrin Photosensitizers on Photostability and Bioactivities of Dietary Pigments, Curcumin and β-Carotene

open access: yesColorants
Natural food pigments such as curcumin and β-carotene are valued for their coloring properties and health-promoting bioactivities, including antioxidant and anticancer effects.
Yu Na Jung, Jungil Hong
doaj   +1 more source

Accumulation of protoporphyrin IX and zinc protoporphyrin IX during the cultivation of HeLa cells

open access: yesAccumulation of protoporphyrin IX and zinc protoporphyrin IX during the cultivation of HeLa cells
identifier:oai:t2r2.star.titech.ac.jp ...
openaire   +3 more sources

Short communication: Fluorescence preservation of protoporphyrin IX in fresh frozen glioma tissue. [PDF]

open access: yesBrain Spine
Demetz M   +8 more
europepmc   +1 more source

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