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Year : 2018  |  Volume : 7  |  Issue : 2  |  Page : 71-74

Insulin resistance profile of apparently healthy term neonates in Lagos, Nigeria

1 Department of Paediatrics, Lagos State University Teaching Hospital, Lagos, Nigeria
2 Department of Paediatrics, College of Medicine, Lagos University Teaching Hospital, Lagos, Nigeria
3 Department of Paediatrics and Child Health, Lagos State University College of Medicine, Lagos, Nigeria

Correspondence Address:
Dr. Ibironke J Akinola
Department of Paediatrics, Lagos State University Teaching Hospital, Lagos
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jcn.JCN_129_17

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Background: While there is currently much emphasis on the developmental origins of diseases associated with deranged metabolism in developed societies, there is a paucity of data on this subject in developing countries. Insulin resistance (IR) at birth is known to be the earliest detectable abnormality in the natural history of diabetes. It is also a precursor of obesity and cardiovascular diseases. Objective: The objective of the study was to determine IR profile in apparently healthy term neonates. Methods: The cross-sectional study involved 33 small for gestational age (SGA), 29 appropriate for gestational age (AGA), and 38 large for gestational age (LGA) healthy neonates <48 h of age. Glucose and insulin samples taken after a shortened fasting time were measured with glucose oxidase and Enzyme-linked immunosorbent assay methods, respectively. Homeostatic model assessment of IR (HOMA-IR) was calculated. Results: The mean fasting glucose, fasting insulin, and HOMA-IR were 2.66 ± 0.7 mmol/L, 8.68 ± 3.63 μU/mL, and 1.01 ± 0.46, respectively. Fasting glucose levels in LGA, AGA, and SGA neonates were 2.92 ± 0.76 mmol/L, 2.58 ± 0.53 mmol/L, and 2.45 ± 0.68 mmol/L, respectively (p = 0.012). Insulin levels of LGA, AGA, and SGA were 9.47 ± 4.77 μU/mL, 8.44 ± 2.03 μU/mL, and 7.98 ± 3.08 μU/mL, respectively (p = 0.207). HOMA-IR of LGA, AGA, and SGA was 1.18 ± 0.54, 0.97 ± 0.32, and 0.86 ± 0.40, respectively (p = 0.01). The correlation coefficient, r, between HOMA-IR and birth weight was 0.72 (p < 0.001) and the correlation coefficient between HOMA-IR of neonates and maternal body mass index (BMI) was 0.51 (p = 0.001). Conclusions: LGA and infants delivered to mothers with higher BMI are at a higher risk of IR and should be screened at birth.

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