Urine growth hormone determinations compared with other methods in the assessment of growth hormone secretion. Acta Paediatr Scand [Suppl] 337:74, 1987.Urinary excretion of hGH was studied in children with short stature using a sensitive sandwich enzyme immunoassay technique. Urinary hGH excretion, in terms of hGH: creatinine ratio, showed excellent correlation with the mean and peak hGH values during physiological and pharmacological tests. It seems that the urinary hGH levels reflect serum hGH profiles during the urine collection period. A border zone for the lower limits of normal hGH levels in the urine was 7.5-13.4 ng/g creatinine for the physiological test at night (from 2000 hours to 0600 hours) and 17.4-35.0 ng/g creatinine for the pharmacological tests. Assessment of hGH secretory status by the urinary hGH levels showed good agreement with the serum hGH response. Measurement of urinary hGH could be used as a diagnostic test for impaired hGH secretion, and the multiple blood drawing required in physiological and pharmacological tests might be replaced by urine sampling. Key words: Urinary hGH, enzyme immunoassay, short stature, hGH deficiency.
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