Biomaterial Database

Relevance of urinary coproporphyrin isomers in hereditary hyperbilirubinemias. 1989

M Frank, and M O Doss

Department of Clinical Biochemistry, Faculty of Medicine, Philipp University, Marburg, Federal Republic of Germany.

Porphyrin metabolism is impaired in Dubin-Johnson syndrome (DJS), Rotor's syndrome (RS), and Gilbert's syndrome (GS). Urinary coproporphyrin (CP) isomer I is increased in these hereditary hyperbilirubinemias to different degrees: in DJS to 85%, in RS to 70%, and in GS to 50% in the homozygous state (p less than 0.001 compared to controls with isomer I of 27%). Intermediate isomer proportions were found in heterozygote carriers of DJS. An overlapping distribution of the isomer I/III ratio is observed in DJS and RS carriers, homozygous subjects with GS, and individuals suffering from alcohol-related intrahepatic cholestasis. The diagnosis of DJS and RS can be based mainly on porphyrin analysis, but the detection of carriers (heterozygotes) requires additional criteria to distinguish them from patients with intrahepatic cholestasis of a different etiology.

UI	MeSH Term	Description	Entries
D007566	Jaundice, Chronic Idiopathic	A benign, autosomally recessive inherited hyperbilirubinemia characterized by the presence of a dark pigment in the centrilobular region of the liver cells. There is a functional defect in biliary excretion of bilirubin, cholephilic dyes, and porphyrins. Affected persons may be asymptomatic or have vague constitutional or gastrointestinal symptoms. The liver may be slightly enlarged, and oral and intravenous cholangiography fails to visualize the biliary tract.	Dubin-Johnson Syndrome,Hyperbilirubinemia 2,Hyperbilirubinemia II,Chronic Idiopathic Jaundice,Chronic Idiopathic Jaundices,Dubin Johnson Syndrome,Hyperbilirubinemia 2s,Hyperbilirubinemia IIs,Idiopathic Jaundice, Chronic,Idiopathic Jaundices, Chronic,Jaundices, Chronic Idiopathic,Syndrome, Dubin-Johnson
D010641	Phenotype	The outward appearance of the individual. It is the product of interactions between genes, and between the GENOTYPE and the environment.	Phenotypes
D011166	Porphyrins	A group of compounds containing the porphin structure, four pyrrole rings connected by methine bridges in a cyclic configuration to which a variety of side chains are attached. The nature of the side chain is indicated by a prefix, as uroporphyrin, hematoporphyrin, etc. The porphyrins, in combination with iron, form the heme component in biologically significant compounds such as hemoglobin and myoglobin.	Porphyrin
D002855	Chromatography, Thin Layer	Chromatography on thin layers of adsorbents rather than in columns. The adsorbent can be alumina, silica gel, silicates, charcoals, or cellulose. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)	Chromatography, Thin-Layer,Thin Layer Chromatography,Chromatographies, Thin Layer,Chromatographies, Thin-Layer,Thin Layer Chromatographies,Thin-Layer Chromatographies,Thin-Layer Chromatography
D003306	Coproporphyrins	Porphyrins with four methyl and four propionic acid side chains attached to the pyrrole rings. Elevated levels of Coproporphyrin III in the urine and feces are major findings in patients with HEREDITARY COPROPORPHYRIA.
D005878	Gilbert Disease	A benign familial disorder, transmitted as an autosomal dominant trait. It is characterized by low-grade chronic hyperbilirubinemia with considerable daily fluctuations of the bilirubin level.	Constitutional Liver Dysfunction,Familial Nonhemolytic Jaundice,Gilbert Syndrome,Gilbert's Disease,Gilbert's Syndrome,Gilbert-Lereboullet Syndrome,Hyperbilirubinemia 1,Hyperbilirubinemia I,Hyperbilirubinemia, Arias Type,Meulengracht Syndrome,Unconjugated Benign Bilirubinemia,Arias Type Hyperbilirubinemia,Arias Type Hyperbilirubinemias,Disease, Gilbert,Disease, Gilbert's,Gilberts Disease,Gilberts Syndrome,Hyperbilirubinemia 1s,Hyperbilirubinemias, Arias Type,Syndrome, Gilbert,Syndrome, Gilbert's
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006933	Hyperbilirubinemia, Hereditary	Inborn errors of bilirubin metabolism resulting in excessive amounts of bilirubin in the circulating blood, either because of increased bilirubin production or because of delayed clearance of bilirubin from the blood.	Rotor Syndrome,Hyperbilirubinemia, Rotor Type,Hereditary Hyperbilirubinemia,Hereditary Hyperbilirubinemias,Hyperbilirubinemias, Hereditary,Rotor Type Hyperbilirubinemia,Syndrome, Rotor
D013050	Spectrometry, Fluorescence	Measurement of the intensity and quality of fluorescence.	Fluorescence Spectrophotometry,Fluorescence Spectroscopy,Spectrofluorometry,Fluorescence Spectrometry,Spectrophotometry, Fluorescence,Spectroscopy, Fluorescence
D013577	Syndrome	A characteristic symptom complex.	Symptom Cluster,Cluster, Symptom,Clusters, Symptom,Symptom Clusters,Syndromes