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Quantitative determination of Zn protoporphyrin IX, heme and protoporphyrin IX in Parma ham by HPLC
Meat Science, 2009We measured the contents of Zn protoporphyrin IX (ZPP), heme and protoporphyrin IX (PPIX) in Parma ham by simultaneous analysis using high-performance liquid chromatography (HPLC). Extraction with ethyl acetate-acetic acid (4:1) was suitable for the quantitative analysis of ZPP.
Takanori Nsihimura, Jun-Ichi Wakamatsu
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Protoporphyrin IX and oxidative stress
Free Radical Research, 1999The short- and long-term pro-oxidant effect of protoporphyrin IX (PROTO) administration to mice was studied in liver. A peak of liver porphyrin accumulation was found 2 h after the injection of PROTO (3.5 mg/kg, i.p.); then the amount of porphyrins diminished due to biliar excretion.
A Batlle
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The pro- and antioxidant properties of protoporphyrin IX
Lipids and Lipid Metabolism, 1994The effect of protoporphyrin on lipid peroxidation in rat liver microsomes was investigated in the presence and absence of light. Protoporphyrin and light stimulated Fe(3+)-ADP/ascorbate-induced lipid peroxidation, whereas Fe(3+)-ADP/NADPH-mediated lipid peroxidation was inhibited.
J VAN STEVENINCK, J Van Der Zee
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Journal of Applied Toxicology, 2022
AbstractChlamydomonas reinhardtii is a nonpathogenic, nontoxigenic green algae used as a sustainable source of protein in foods. In order to mimic meat‐like qualities, a strain rich in protoporphyrin IX (PPIX), an endogenous heme/chlorophyll precursor, was developed using an evolution and selection strategy, and investigations were carried out to ...
Timothy S. Murbach +9 more
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AbstractChlamydomonas reinhardtii is a nonpathogenic, nontoxigenic green algae used as a sustainable source of protein in foods. In order to mimic meat‐like qualities, a strain rich in protoporphyrin IX (PPIX), an endogenous heme/chlorophyll precursor, was developed using an evolution and selection strategy, and investigations were carried out to ...
Timothy S. Murbach +9 more
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Triplet states of protoporphyrin IX and protoporphyrin IX dimethyl ester
Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 1980Laser and conventional flash photolysis have been used to obtain the triplet—triplet absorption spectra, triplet lifetimes, rates of oxygen quenching and quantum efficiencies of triplet formation of protoporphyrin IX as the dication, monocation and free base in several solvent systems. The results are rationalised in terms of protoporphyrin IX existing
Roy S. Sinclair +2 more
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The photosensitizing effect of the photoproduct of protoporphyrin IX
Journal of Photochemistry and Photobiology B: Biology, 2001The photodynamic effect of a photoproduct of protoporphyrin IX (PpIX) induced by 5-aminolevulinic acid (ALA) was investigated in WiDr cells, a human adenocarcinoma cell line. The fluorescence excitation and emission spectra of PpIX and the photoproduct were measured.
L, Ma, S, Bagdonas, J, Moan
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Transfer of Protoporphyrin IX Between Cells¶
Photochemistry and Photobiology, 2002Human adenocarcinoma cells of the line WiDr and human leukemia T cells of the line Jurkat were incubated with 5-aminolevulinic acid and found to produce protoporphyrin IX (PpIX). They were able to transfer a fraction of the sensitizer to neighboring control cells. The transfer took place through direct membrane contact.
Johan, Moan, Li Wei, Ma, Trond, Stokke
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Biosynthesis of Chlorophylls from Protoporphyrin IX
ChemInform, 2003AbstractFor Abstract see ChemInform Abstract in Full Text.
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Protoporphyrin IX Photosensitization of Corneal Endothelium
Archives of Ophthalmology, 1989Protoporphyrin IX, a naturally occurring precursor of hemoglobin found in serum and erythrocytes, is a photoactive compound that we have detected in aqueous aspirates of three patients with hyphemas (0.13, 0.33, and 0.67 microgram/dL). To determine whether corneal endothelial photosensitization could occur, rabbit corneas were exposed to physiologic ...
J D, Gottsch +5 more
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The metabolism of coproporphyrinogen-III into protoporphyrin-IX
International Journal of Biochemistry, 1978Abstract This review considers the stages and enzymes between coproporphyrinogen-III and protoporphyrin-IX.
A H, Jackson, G H, Elder, S G, Smith
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