TY - JOUR
T1 - Evolution of glucose-insulin homeostasis in children with a-thalassemia major (a-TM)
T2 - A twenty-year retrospective ICET-A observational analysis from early childhood to young adulthood
AU - De Sanctis, Vincenzo
AU - Daar, Shahina
AU - Soliman, Ashraf T.
AU - Tzoulis, Ploutarchos
AU - Karimi, Mehran
AU - Kattamis, Christos
N1 - Publisher Copyright:
© 2022, Mattioli 1885. All rights reserved.
PY - 2022
Y1 - 2022
N2 - Background: Thalassemia guidelines recommend oral glucose tolerance test (OGTT), starting from the age of 10 years, or earlier in the presence of iron overload. Objective: The aim of this retrospective study was to review and document the changes of glucose-insulin homeostasis from early childhood to young adulthood in β-thalassemia major (β-TM) patients with impaired fasting glucose (IFG) and normal OGTT. Methods: All data of the clinical patients’ records of 18 β-TM patients from September 1983 to September 2021 were included in the study. Annual or biennial OGTT results, for a duration of 15-20 years, were available for all patients. Results: The main findings are: a) IFG in children with β-TM represents a risk factor for the development of glucose dysregulation (GD) at later age; b) fluctuations of glucose homeostasis during follow-up were observed mainly in β-TM patients with IFG at baseline; and c) the primary defect of GD ap-pears to be a low degree insulin resistance (IR), as estimated by HOMA-IR, followed by an insulin secretion defect. Conclusion: These results are noteworthy as they revealed that firstly, the baseline IFG predicts future development of GD, and secondly, that almost half of patients with IFG at the outset had normal glucose handling 15 years later. Understanding the sequence of abnormalities in the progression from normal glucose homeostasis to GD and identifying the risk factors for the glycometabolic defects in thalassemic patients might help in the formulation of interventions.
AB - Background: Thalassemia guidelines recommend oral glucose tolerance test (OGTT), starting from the age of 10 years, or earlier in the presence of iron overload. Objective: The aim of this retrospective study was to review and document the changes of glucose-insulin homeostasis from early childhood to young adulthood in β-thalassemia major (β-TM) patients with impaired fasting glucose (IFG) and normal OGTT. Methods: All data of the clinical patients’ records of 18 β-TM patients from September 1983 to September 2021 were included in the study. Annual or biennial OGTT results, for a duration of 15-20 years, were available for all patients. Results: The main findings are: a) IFG in children with β-TM represents a risk factor for the development of glucose dysregulation (GD) at later age; b) fluctuations of glucose homeostasis during follow-up were observed mainly in β-TM patients with IFG at baseline; and c) the primary defect of GD ap-pears to be a low degree insulin resistance (IR), as estimated by HOMA-IR, followed by an insulin secretion defect. Conclusion: These results are noteworthy as they revealed that firstly, the baseline IFG predicts future development of GD, and secondly, that almost half of patients with IFG at the outset had normal glucose handling 15 years later. Understanding the sequence of abnormalities in the progression from normal glucose homeostasis to GD and identifying the risk factors for the glycometabolic defects in thalassemic patients might help in the formulation of interventions.
KW - glucose dysregulation
KW - impaired fasting glucose
KW - insulin resistance
KW - insulin secretion defect
KW - long-term follow-up
KW - oral glucose tolerance test
KW - β-thalassemia major
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U2 - 10.23750/abm.v93i3.12643
DO - 10.23750/abm.v93i3.12643
M3 - Article
C2 - 35775765
AN - SCOPUS:85133235778
SN - 0392-4203
VL - 93
JO - Acta Biomedica
JF - Acta Biomedica
IS - 3
M1 - e2022243
ER -