Background: Diabetes during pregnancy is associated with an increased risk of foetal and neonatal complications and long-term complications in the offspring. Brain-derived neurotrophic factor (BDNF), a neurotrophin that has a crucial role in neurogenesis modulation and neural pathway maturation during neurodevelopment, may have a role in protecting neurons against injury and diseases by modulating glucose metabolism. The aim of this study was to investigate the possible relationship between the serum BDNF levels of infants of mothers with gestational diabetes (IMGD) and neurodevelopmental outcomes of the children after birth.
Methods: A total of 24 candidates, including 8 IMGD and 16 healthy infants, were recruited for the study. Medical records were reviewed. Serum BDNF levels of the study participants were collected at birth and at 6 and 12 months of age. Developmental outcomes of each candidate were assessed using the Bayley Scales of Infant Development III (BSID III) at 6 and 12 months of corrected age.
Results: Compared to non-IMGD, IMGD had greater mean body weight (p = 0.04) and height (p < 0.01) at age 12 months. The language composite score was significantly lower in IMGD at 12 months of age (p = 0.038). The BDNF content was significantly higher in the non-IMGD than in the IMGD group at 12 months of age (p = 0.013).
Conclusion: In this study, we demonstrated that infants of mothers with gestational diabetes do worse in language development and have lower BDNF levels at 12 months of age. There may be a close correlation between language outcomes and serum BDNF levels at 12 months of age. A follow-up study on future developmental status is warranted.
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