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Vol. 54. Issue 4.
Pages 225-229 (April 2007)
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Vol. 54. Issue 4.
Pages 225-229 (April 2007)
Puesta al día: pruebas de laboratorio en Endocrinología y Nutrición
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Diagnóstico bioquímico de la deficiencia de hormona de crecimiento
Biochemical diagnosis of growth hormone deficiency
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Montserrat Mauri
Corresponding author
mauri_mon@gva.es

Correspondencia: Dra. M. Mauri. Laboratorio de Hormonas. Hospital General Universitario de Alicante. Pintor Baeza, 12. 03010 Alicante. España.
, Rocío Alfayate
Laboratorio de Hormonas. Servicio de Análisis Clínicos. Hospital General Universitario de Alicante. Alicante. España
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El diagnóstico bioquímico de la deficiencia de hormona de crecimiento (GH) es un tema controvertido. Los avances tecnológicos no han contribuido a su esclarecimiento debido a muchos factores inherentes a la fisiología de la secreción de GH y a la falta de consenso en muchos aspectos metodológicos. Los resultados obtenidos con los distintos inmunoanálisis presentan una gran variabilidad por los distintos anticuerpos utilizados y los diferentes calibradores.

A pesar de sus limitaciones, se sigue utilizando pruebas farmacológicas de estímulo. Sin embargo, no existe en la actualidad ninguna prueba bioquímica ni clínica definitiva para el diagnóstico del déficit de GH. El endocrinólogo debe conocer la especificidad y las limitaciones de los métodos de laboratorio. Los datos bioquímicos deben interpretarse en el contexto clínico y no deben ser utilizados como único criterio para stablecer un diagnóstico.

Palabras clave:
Hormona de crecimiento
Inmunoanálisis
Pruebas de estímulo

Biochemical diagnosis of growth hormone (GH) deficiency is controversial. Despite advances in assay design, many factors inherent to the physiology of GH secretion and the lack of consensus on methodological issues hamper resolution of these controversies. The results obtained with various assays show wide variability due to differences in the antibodies used and the distinct reference preparations employed for the calibration of assay kits.

Despite its limitations, provocation testing continues to be performed. However, there is no definitive clinical or biochemical test for the diagnosis of GH deficiency. Endocrinologist should be familiar with the specificity and limitations of biochemical tests. Biochemical data should be interpreted in the clinical context and should not be the only criterion used to establish the diagnosis.

Key words:
Growth hormone
Immunoassay
Stimulation tests
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Copyright © 2007. Sociedad Española de Endocrinología y Nutrición
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