Porphyrinogenic Agents
Mostrando 1-3 de 3 artigos, teses e dissertações.
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1. Spot urine porphyrins/creatinine ratio profile of healthy Brazilian individuals adjusted for personal habits
Changes in urinary porphyrin excretion may be the result of hereditary causes and/or from environmental or occupational exposure. The objective of this study was to measure the amount of some porphyrins in spot urine samples obtained from volunteers randomly selected from a healthy adult population of São Paulo with a sensitive HPLC method and to estimate n
Brazilian Journal of Medical and Biological Research. Publicado em: 15/05/2009
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2. Urinary porphyrins reference ranges by HPLC in a population not exposed to porphyrinogenic agents / Valores de referência de porfirinas urinárias por CLAE numa população não-exposta a agentes químicos porfirinogênicos
Porphyrins which are formed as intermediates in heme biosynthesis, vary from eight to four carboxyl groups: uro, hepta, hexa, penta and coproporphyrins. Alterations in the urinary porphyrin excretion profile may be caused by a hereditary disease or by environmental/occupational exposure. The purpose of this study was to establish a sensitive and accurate hig
Publicado em: 2005
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3. Selenium regulation of hepatic heme metabolism: induction of delta-aminolevulinate synthase and heme oxygenase.
Selenium was found to be a novel regulator of cellular heme methabolism in that the element induced both the mitochondrial enzyme delta-aminolevulinate synthase [succinyl-CoA:glycine C-succinyltransferase (decarboxylating); EC 2-3-1-37] and the microsomal enzyme heme oxygenase [heme, hydrogen-donor:oxygen oxidoreductase(alpha-methene-oxidizing, hydroxylating