[Patterns of urinary aminoacid excretion in exceptional children and patients with mental disorders in Costa Rica]. / Patrones de excreción de aminoácidos urinarios en niños excepcionales y pacientes con trastornos mentales en Costa Rica.
Rev Biol Trop
; 31(1): 1-9, 1983 Jun.
Article
en Es
| MEDLINE
| ID: mdl-6665250
The amino acid profile was studied in individual random samples of urine from 1147 normal schoolchildren and 1074 exceptional children: 628 with mental retardation, 332 with hearing and speech defects and 114 with visual defects as well as in 673 patients with mental disorders. Laboratory procedures included chemical tests and one-dimension paper- electro- and column-chromatography. Phenylketonuria was found in a mentally retarded girl and in one of her brothers; iminoglycinuria in a mentally retarded boy and heterozygote cystinuria in a man with manic-depressive psychosis. The percentage of high excretors of beta-aminoisobutyric acid (B-AIB) in the controls (4.88%) was similar to previous findings in the Caucasian race. The children with hearing and speech defects showed a number of high excretors of B-AIB significantly lower (X2 = 5.32; p less than 0.025) and the children with visual defects a number of hyperglycinurias significantly higher (X2 = 9.19; p less than 0.05). Previous non-consistent findings on the excess of high excretors of B-AIB in Down's syndrome were not confirmed in this study. These results suggest a relationship between transport defects in the plasma membrane and pathological disorders in some of the cases screened.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Aminoácidos
/
Trastornos Mentales
/
Discapacidad Intelectual
Tipo de estudio:
Diagnostic_studies
Límite:
Child
/
Female
/
Humans
/
Male
País/Región como asunto:
America central
/
Costa rica
Idioma:
Es
Revista:
Rev Biol Trop
Año:
1983
Tipo del documento:
Article
Pais de publicación:
Costa Rica