Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1991-10-3
pubmed:abstractText
1 The aim of this pilot study was to investigate if the porphyrinuria produced by arsenic in rodents was present in humans chronically exposed to arsenic via drinking water. 2 The concentrations of uroporphyrin, coproporphyrin and total arsenic in urine were compared between 21 individuals exposed to arsenic in their drinking water (0.390 mg l-1) and 19 controls exposed to 0.012 mg l-1. 3 Arsenic-exposed individuals had significantly higher total arsenic concentrations in their urine than the control group. No increase in urinary porphyrin excretion was found in exposed individuals. However, an inversion of the coproporphyrin/uroporphyrin (COPRO/URO) ratio was observed in most exposed individuals. This inversion was caused both, by a decrease in coproporphyrin excretion and an increase in uroporphyrin excretion. 4 No demonstrable correlations between porphyrin excretion, the COPRO/URO ratio and total arsenic concentration in urine were found in exposed individuals.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0960-3271
pubmed:author
pubmed:issnType
Print
pubmed:volume
10
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
189-93
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
A pilot study on the urinary excretion of porphyrins in human populations chronically exposed to arsenic in Mexico.
pubmed:affiliation
Departamento de Farmacologia y Toxicologia, CINVESTAV-IPN, México, D.F. México.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't