Results 161 to 170 of about 1,927 (199)
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Protoporphyrin and Zinc Protoporphyrin in the Blood of Tumor Transplanted Mice
Chemistry Letters, 1995Abstract Fluorescence at 630 nm was detected from the blood of tumor implanted mice. The fluorescence was attributed to protoporphyrin and zinc protoporphyrin. The fluorescence intensity increased with the increase of the period from tumor implantation and then decreased. By measuring the fluorescence intensity of the blood, the progress
Nishisaka T. +4 more
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Nitric oxide inhibits the formation of zinc protoporphyrin IX and protoporphyrin IX
Meat Science, 2010The aim of this study was to elucidate the mechanism by which curing agents, especially nitrite, inhibit the formation of zinc protoporphyrin IX (ZPP) in dry-cured hams such as Parma ham. The oxidation-reduction potential of model solutions was increased by the addition of nitrite, but it was not clear whether the formation of ZPP is inhibited by the ...
Jun-ichi, Wakamatsu +3 more
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Zinc protoporphyrin as an indicator of lead exposure: precision of zinc protoporphyrin measurements
International Archives of Occupational and Environmental Health, 1987In lead-exposed workers many factors affect the relationship between the levels of lead and of zinc protoporphyrin (ZPP) in blood. When the zinc protoporphyrin level is used to assess the lead in the blood level, the analytical accuracy of the ZPP and the PbB determinations should be known.
M, Verschoor +3 more
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Canadian Journal of Biochemistry, 1981
The binding of protoporphyrin to melanin and the effect of the binding of protoporphyrin to melanin on the oxidation–reduction properties of melanin were studied. Various concentrations of protoporphyrin were incubated with melanin suspensions.
S, Persad, H F, Haberman, I A, Menon
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The binding of protoporphyrin to melanin and the effect of the binding of protoporphyrin to melanin on the oxidation–reduction properties of melanin were studied. Various concentrations of protoporphyrin were incubated with melanin suspensions.
S, Persad, H F, Haberman, I A, Menon
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Journal of Chromatography B: Biomedical Sciences and Applications, 1980
Zinc protoporphyrin and protoporphyrin free acid in blood were determined by high-performance liquid chromatography on a C18 column. Results for 63 human blood samples obtained through a lead poisoning detection program compared favorably with the widely-used ethyl acetate--acetic acid extraction determination.
R M, Smith, D, Doran, M, Mazur, B, Bush
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Zinc protoporphyrin and protoporphyrin free acid in blood were determined by high-performance liquid chromatography on a C18 column. Results for 63 human blood samples obtained through a lead poisoning detection program compared favorably with the widely-used ethyl acetate--acetic acid extraction determination.
R M, Smith, D, Doran, M, Mazur, B, Bush
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Zinc Protoporphyrin, Zinc Ion, and Protoporphyrin Reduce Focal Cerebral Ischemia
Stroke, 1996Background and PurposeZinc protoporphyrin pretreatment protects against temporary focal ischemic brain injury in rats. However, it is not known whether the zinc or the protoporphyrin portion of zinc protoporphyrin has effects on focal cerebral ischemia. Hence, all three agents were compared with regard to infarct size and edema in a rat model of middle
Y J, Zhao, G Y, Yang, E F, Domino
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Protoporphyrin in the Integument of Asterias rubens
Nature, 1953MACMUNN in 18861 extracted the integument of A. rubens (then known as Uraster rubens) with ethyl alcohol containing sulphuric acid. The extracts were red-fluorescent to ultra-violet light, and MacMunn reported the presence of haematoporphyrin in them— the only porphyrin then known, having been discovered by Hoppe-Seyler in 1871 2.
G Y, KENNEDY, H G, VEVERS
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Synthesis of protoporphyrin XIII and protoporphyrin III
The Journal of Organic Chemistry, 1977G, Buldain, L, Diaz, B, Frydman
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On the Protoporphyrin Monolayers Conformation
ChemPhysChem, 2006Christophe, Humbert +5 more
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