scholarly journals Urinary Coproporphyrin Isomers I and III in Lead Workers and a Control Group

1966 ◽  
Vol 23 (2) ◽  
pp. 112-115
Author(s):  
S. Mehani
Keyword(s):  
Control Group ◽  
Lead Workers ◽  
Coproporphyrin Isomers ◽  
Urinary Coproporphyrin

scholarly journals A MICROMETHOD FOR THE QUANTITATIVE DETERMINATION OF THE URINARY COPROPORPHYRIN ISOMERS (I AND III)

1947 ◽  
Vol 168 (1) ◽  
pp. 133-144
Author(s):  
Samuel Schwartz ◽  
Violet Hawkinson ◽  
Sanford Cohen ◽  
Cecil James Watson
Keyword(s):  
Quantitative Determination ◽  
Coproporphyrin Isomers ◽  
Urinary Coproporphyrin

Detection of the Heterozygous State in Bovine Porphyria: Analysis of Urinary Coproporphyrin Isomers

1970 ◽  
Vol 134 (4) ◽  
pp. 926-929 ◽  
Author(s):  
W. E. Moore ◽  
B. D. Stephenson ◽  
A. S. Anderson ◽  
S. Schwartz
Keyword(s):  
Heterozygous State ◽  
Coproporphyrin Isomers ◽  
Urinary Coproporphyrin

Faecal and urinary coproporphyrin isomers in biliary atresia and neonatal hepatitis

1980 ◽  
Vol 10 (3) ◽  
pp. 501-509 ◽  
Author(s):  
Emilio Rocchi ◽  
Paolo Gibertini ◽  
Valter Santunione ◽  
Fiorella Balli ◽  
Ezio Ventura
Keyword(s):  
Biliary Atresia ◽  
Neonatal Hepatitis ◽  
Coproporphyrin Isomers ◽  
Urinary Coproporphyrin

Fecal and Urinary Coproporphyrin Isomers in the Diagnosis of Biliary Atresia1

2015 ◽  
pp. 172-177
Author(s):  
E. Ventura ◽  
E. Rocchi ◽  
F. Balli ◽  
P. Gibertini ◽  
V. Santunione ◽  
...  
Keyword(s):  
Coproporphyrin Isomers ◽  
Urinary Coproporphyrin

Altered Urinary Porphyrin Excretion in a Human Po p ulation Chronically Exposed to Arsenic in Mexico

1994 ◽  
Vol 13 (12) ◽  
pp. 839-847 ◽  
Author(s):  
Gonzalo G. García-Vargas ◽  
Luz M. Del Razo ◽  
Mariano E. Cebrián ◽  
Arnulfo Albores ◽  
Patricia Ostrosky-Wegman ◽  
...  
Keyword(s):  
Drinking Water ◽  
High Performance ◽  
Direct Relationship ◽  
Clinical Signs ◽  
Control Group ◽  
Decarboxylase Activity ◽  
Uroporphyrinogen Decarboxylase ◽  
Excretion Pattern ◽  
Johnson Syndrome ◽  
Coproporphyrin Isomers

1 A detailed study of the urinary excretion pattern of porphyrins in humans chronically exposed to As via drinking water was performed using high performance liquid chromatography (HPLC) 2 Thirty-six individuals (15 men and 21 women) were selected from a town which had 0.400 mg L -1 of As in drinking water. The control group consisted of thirty-one individuals (13 men and 18 women) whose As concentration in drinking water was 0.020 mg L-1. 3 The major abnormalities in the urinary porphyrin excretion pattern observed in arsenic-exposed individuals were: (a) significant reductions in coproporphyrin III excretion resulting in decreases in the COPRO III/COPRO I ratio, and (b) significant increases in uroporphyrin excretion. Both alterations were responsible for the decrease in the COPRO/URO ratio. 4 No porphyrinogenic response was found in individuals with urinary As concentrations below 1,000 μg of As g-1 of creatinine, However, as arsenic concentrations exceeded this value, the excretion of porphyrins (except coproporphyrin III) increased proportionally. 5 The prevalence of clinical signs of arsenicism showed a direct relationship to both As concentration in urine and time-weighted exposure to As. A direct relationship between time-weighted exposure and alterations in urinary porphyrin excretion ratios was also observed. 6 The alterations found are compatible with a lower uroporphyrinogen decarboxylase activity in arsenic-exposed individuals. However, the similarities in the urinary porphyrin excretion pattern between As-exposed individuals and Dubin-Johnson syndrome patients suggest that impairments in the excretion of coproporphyrin isomers may also contribute to the pattern observed.

Urinary Coproporphyrin isomers in Rotor's syndrome: A study in eight families

Hepatology ◽  
1981 ◽  
Vol 1 (2) ◽  
pp. 173-178 ◽  
Author(s):  
Yoshitaka Shimizu ◽  
Hiroshi Naruto ◽  
Setsuko Ida ◽  
Masateru Kohakura
Keyword(s):  
Coproporphyrin Isomers ◽  
Rotor’S Syndrome ◽  
Urinary Coproporphyrin
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