title: [Urinary excretion of calcium, magnesium, uric acid and oxalic acid in normal children].
abstract: A group of normal children with a free diet was studied. Their first morning urine (n = 176) and their 24-hour-urine (n = 64) was collected, valuing the calciuria, magnesiuria, uricosuria and oxaluria, establishing their relationship with a dietetic survey. Ca/Cr rate value was 0.13 +/- 0.7 mg/mg in the morning urine, and 0.12 +/- 0.06 mg/mg in the 24-hour-urine. Calciuria (mg/kg/day) was 2.46 +/- 1.45, higher to that noticed by other authors. Prevalence of hypercalciuria was 7.8%. We haven't noticed any correlation between the calciuria (mg/kg/day) and the consumption of proteins and carbohydrates. A positive correlation was found between Ca/Cr and Na/Cr rate, together with high natriuria (3.87 +/- 1.35 mEq/kg/day); these findings could justify the elevated calciuria in the children studied. Mean values of magnesium and uric acid were 0.04 +/- 0.02 and 0.30 +/- 0.08 mg/100 ml FG, respectively and the oxaluria was 34.51 +/- 16.35 mg/day/1.73 m2.
authors.affiliation: Departamento de Pediatría, Hospital Clínico Universitario, Valencia.
authors.forename: R
authors.initials: R
authors.lastname: Hernández Marco
authors.forename: F
authors.initials: F
authors.lastname: Núñez Gómez
authors.forename: C
authors.initials: C
authors.lastname: Martínez Costa
authors.forename: J
authors.initials: J
authors.lastname: Fons Moreno
authors.forename: A
authors.initials: A
authors.lastname: Peris Vidal
authors.forename: J
authors.initials: J
authors.lastname: Brines Solanes
mesh_terms: D000293:Adolescent; D002118:Calcium / Q000652:urine*; D002648:Child; D002675:Child, Preschool; D002940:Circadian Rhythm; D003404:Creatinine / Q000652:urine; D005260:Female; D006801:Humans; D008274:Magnesium / Q000652:urine*; D008297:Male; D010070:Oxalates / Q000652:urine*; D019815:Oxalic Acid; D014527:Uric Acid / Q000652:urine*
chemical_list: D010070:Oxalates; D014527:Uric Acid; D019815:Oxalic Acid; D003404:Creatinine; D008274:Magnesium; D002118:Calcium
vernacular_title: Excreción urinaria de calcio, magnesio, ácido úrico y ácido oxálico en niños normales.