Relationship Between GH Response to Stimuli, Levels of IGF-1, and Final Height
Intensive transfusion regimens have significantly improved the prognosis for patients with thalassemia major. However, growth failure and hypogonadism are still major problems. Growth failure is generally accepted as beginning at the age of 10, with a marked decline in the growth rate after the age of 12–14 years [1, 2]. A recent report shows that height impairment occurs before the age of 10 . While it is possible that delayed puberty may be responsible for the failure to grow during the physiological period of puberty, factors determining precocious growth impairment are less clear. Endocrine studies in young children have frequently, but not always, revealed the presence of a normal GH response to provocative stimuli. However, low plasma insulin-like growth factor-1 (IGF-1) activity was found in several studies [4, 5]. The aim of the present study was to investigate the relationship between GH response to pharmacological stimuli, the levels of IgF-1, and final height in thalassemic patients.
KeywordsFinal Height Growth Failure Pubertal Stage Thalassemic Patient Thalassemia Major
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