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What Does It Mean If Your GH Is Normal, But Your IGF-1 Is High?

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    Growth  hormone is  responsible for  growth in all animals including human. Its levels are different throughout the day but high at one hour after sleep. Function of GH is anabolic.
    IGF-1 is insulin like growth factor is polypeptide protein hormone which act as anabolic in adults and play important role in child growth. It is produced by the liver and its production is stimulated by growth hormone.
    You have not indicated your age because its  normal levels vary withe age, sex and pubertal stages.  Interpretation of its level  is  complex. Usually, its low levels cause growth failure and excess levels cause acromegaly that is enlargement of extremities. But your high levels of IGF-1 are can be normal depending upon your age. Your doctor can tell you properly.

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    John007 

    answered 1 year ago

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