title: Evaluation of delta-aminolaevulinic acid excretion in random urine samples of children.
abstract: Urinary delta-aminolaevulinic acid (delta-ALA) excretion was evaluated in random urine samples of 191 healthy children, aged 2-14 years, with blood lead levels < 0.8 mumol/l (mean +/- SD: 0.34 +/- 0.13), erythrocyte zinc-protoporphyrin < 70 mumol/mol haem (mean +/- SD: 50.4 +/- 8.0) and blood haemoglobin > 6.8 mmol/l (mean +/- SD: 8.2 +/- 0.5). It was found that uncorrected delta-ALA concentration and delta-ALA/creatinine ratio are age-dependent, whereas the ratio of delta-ALA/logarithm of creatinine concentration (mean +/- SD: 55.3 +/- 13.5 mumol/log mmol) is independent of age and sex. The authors recommend the use of this parameter for the assessment of delta-ALA excretion in random urine samples in children.
authors.affiliation: Department of Analytical and Clinical Chemistry, National Institute of Occupational Health, Budapest, Hungary.
authors.forename: A
authors.initials: A
authors.lastname: Hudák
authors.forename: G
authors.initials: G
authors.lastname: Kiss
authors.forename: M
authors.initials: M
authors.lastname: Náray
authors.forename: E
authors.initials: E
authors.lastname: Süveges
mesh_terms: D000293:Adolescent; D000622:Aminolevulinic Acid / Q000652:urine*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D012016:Reference Values
chemical_list: D000622:Aminolevulinic Acid