Abstract
Exposure to maternal diabetes (DM) or hypertension (HTN) during pregnancy impacts offspring metabolic health in childhood and beyond. Animal models suggest that induction of hypothalamic inflammation and gliosis in the offspring’s hypothalamus is a possible mechanism mediating this effect. We tested, in children, whether in utero exposures to maternal DM or HTN were associated with mediobasal hypothalamic (MBH) gliosis as assessed by brain magnetic resonance imaging (MRI). The study included a subsample of 306 children aged 9–11 years enrolled in the ABCD Study®; 49 were DM-exposed, 53 were HTN-exposed, and 204 (2:1 ratio) were age- and sex-matched children unexposed to DM and/or HTN in utero. We found a significant overall effect of group for the primary outcome of MBH/amygdala (AMY) T2 signal ratio (F(2,300):3.51, p = 0.03). Compared to unexposed children, MBH/AMY T2 signal ratios were significantly higher in the DM-exposed (β:0.05, p = 0.02), but not the HTN-exposed children (β:0.03, p = 0.13), findings that were limited to the MBH and independent of adiposity. We concluded that children exposed to maternal DM in utero display evidence of hypothalamic gliosis, suggesting that gestational DM may have a distinct influence on offspring’s brain development and, by extension, children’s long-term metabolic health.
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Data availability
National Institute of Mental Health Data Archive (NDA) ABCD Study Collection can be found here: https://nda.nih.gov/edit_collection.html?id=2573 Annual Release 3.0 and fast-track imaging active series were used and can be found here: https://nda.nih.gov/study.html?id=901 and through https://doi.org/10.15154/1519007. Data used in this manuscript can be accessed at https://doi.org/10.15154/1524669.
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Acknowledgements
Data used in the preparation of this manuscript were obtained from the Adolescent Brain Cognitive Development (ABCD) Study (https://abcdstudy.org), held in the NIMH Data Archive (NDA). This is a multisite, longitudinal study designed to recruit more than 10,000 children age 9-10 and follow them over 10 years into early adulthood. The ABCD Study® is supported by the National Institutes of Health and additional federal partners under award numbers U01DA041048, U01DA050989, U01DA051016, U01DA041022, U01DA051018, U01DA051037, U01DA050987, U01DA041174, U01DA041106, U01DA041117, U01DA041028, U01DA041134, U01DA050988, U01DA051039, U01DA041156, U01DA041025, U01DA041120, U01DA051038, U01DA041148, U01DA041093, U01DA041089, U24DA041123, U24DA041147. A full list of supporters is available at https://abcdstudy.org/federal-partners.html. A listing of participating sites and a complete listing of the study investigators can be found at https://abcdstudy.org/consortium_members/. ABCD consortium investigators designed and implemented the study and/or provided data but did not necessarily participate in the analysis or writing of this report. This manuscript reflects the views of the authors and may not reflect the opinions or views of the NIH or ABCD consortium investigators. The ABCD data repository grows and changes over time. The ABCD data used in this report came from the fast track data release. The raw data are available at https://nda.nih.gov/edit_collection.html?id=2573. Instructions on how to create an NDA study are available at https://nda.nih.gov/training/modules/study.html. These authors appreciate the contribution of the ABCD study participants and their families to this research.
Funding
This research was supported by the National Institutes of Health (NIH) R01DK117623 (EAS), R01DK089036 (EAS), K24HL144917 (EAS), and University of Washington Nutrition and Obesity Research Center grant P30DK035816 (EAS).
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LES, SC and EAS were involved in developing the design of the current study. KO, LES, SK carried out the MRI analysis. LES carried out the data analysis. KO, LES, SJM, EAS contributed to interpretation of the data. KO wrote the first draft of the manuscript. KO, LES, SK, SJM, SC, and EAS contributed to critical revision of the manuscript for important intellectual content. All authors approved the submitted version of the manuscript.
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Olerich, K.L.W., Sewaybricker, L.E., Kee, S. et al. In utero exposure to maternal diabetes or hypertension and childhood hypothalamic gliosis. Int J Obes 48, 594–597 (2024). https://doi.org/10.1038/s41366-024-01463-0
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DOI: https://doi.org/10.1038/s41366-024-01463-0