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eISSN: 2083-8441
ISSN: 2081-237X
Pediatric Endocrinology Diabetes and Metabolism
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SCImago Journal & Country Rank
3/2023
vol. 29
 
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abstract:
Original paper

The incidence of insulin resistance based on indices calculated using the HOMA and Belfiore methods and its impact on the occurrence of metabolic complications in prepubertal children born small for gestational age

Anna Łupińska
1, 2
,
Renata Stawerska
1, 2
,
Małgorzata Szałapska
2
,
Marzena Kolasa-Kicińska
2
,
Krzysztof Jeziorny
1, 2
,
Wojciech Stawerski
3
,
Sara Aszkiełowicz
2
,
Andrzej Lewiński
2, 4

  1. Department of Paediatric Endocrinology, Medical University of Lodz, Poland
  2. Department of Endocrinology and Metabolic Diseases, Polish Mother's Memorial Hospital – Research Institute of Lodz, Poland
  3. Department of Arthroscopy, Minimally Invasive Surgery and Sports Traumatology, Medical University of Lodz, Poland Institute of Lodz, Poland
  4. Department of Endocrinology and Metabolic Diseases, Medical University of Lodz, Poland
Pediatr Endocrinol Diabetes Metab 2023; 29 (3): 175-183
Online publish date: 2023/10/23
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Introduction
Children born small for gestational age (SGA) are predisposed to obesity, insulin resistance (IR), and lipid disorders. The HOMA-IR index is commonly used to assess IR (IRIHOMA), calculated from fasting glucose and insulin. However, sometimes, during the oral glucose tolerance test (OGTT), elevated and prolonged postprandial insulin secretion is observed despite normal fasting insulin levels. IRIBelfiore is an IR index that analyses glucose and insulin levels during OGTT according to the method proposed by Belfiore.

The aim of the study
was to assess the frequency of IR based on IRIHOMA and IRIBelfiore results in SGA children aged 6–8 years, after catch-up phenomenon, to determine the usefulness of IRIBelfiore in diagnosis of IR and in predicting future metabolic complications.

Material and methods
In 129 SGA normal-height children, aged 6–8 years, height, weight, waist circumference, blood pressure, as well as lipids, IGF-1, cortisol, C-peptide, leptin, adiponectin, and resistin concentrations were measured. The glucose and insulin concentrations were evaluated at 0, 60, and 120 minutes of OGTT.

Results
IRIHOMA was normal in all children, while elevated IRIBelfiore was found in 22.5% of them. Children with IR diagnosed by IRIBelfiore were taller, had higher blood pressure, higher leptin, and lower HDL-cholesterol concentrations.

Conclusions
It seems worth recommending IRIBelfiore derived from OGTT as a valuable diagnostic tool for identifying IR in SGA prepubertal children. Abnormal IRIBelfiore is related to higher blood pressure and lower HDL-cholesterol concentration in this group.

keywords:

small for gestational age, insulin resistance, OGTT, leptin, metabolic syndrome


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