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Growth hormone deficiency, brain development, and intelligence.

H F Meyer-Bahlburg, J A Feinman, M H MacGillivray

    American Journal of Diseases of Children (1960)
    |June 1, 1978
    PubMed
    Summary
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    Growth hormone (GH) deficiency in children does not impact intelligence or specific mental abilities. Growth hormone treatment also showed no effect on intelligence in later childhood and adolescence.

    Area of Science:

    • Pediatric Endocrinology
    • Neuroscience
    • Human Development

    Background:

    • Growth hormone (GH) deficiency can impact childhood growth and development.
    • The potential effects of GH deficiency on cognitive functions remain an area of investigation.
    • Understanding these effects is crucial for comprehensive patient care.

    Purpose of the Study:

    • To investigate the relationship between GH deficiency and intelligence in children.
    • To determine if GH deficiency affects specific mental abilities.
    • To assess the impact of GH treatment on cognitive development.

    Main Methods:

    • Selection of 29 patients with confirmed GH deficiency, excluding reversible causes, pituitary tumors, or trauma.
    • Categorization of patients into multiple hormone deficiencies or isolated GH deficiency groups.

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  • Administration of psychometric tests to assess intelligence and specific mental abilities.

    • Main Results:

    • Psychometric testing revealed a normal distribution of IQ scores among patients.
    • GH deficiency was not found to be associated with deficits in specific mental abilities.
    • GH treatment did not appear to influence intelligence in later childhood and adolescence.
    • Patients with multiple hormone deficiencies exhibited slightly lower IQs than those with isolated GH deficiency, after controlling for socioeconomic status.

    Conclusions:

    • GH deficiency itself does not seem to impair human brain development or overall intelligence.
    • Cognitive function in children with GH deficiency is generally preserved.
    • Further research may explore nuanced cognitive impacts in specific subgroups.