Bibliographic Details
| Title: |
Umbilical cord blood DNA methylation in children who later develop type 1 diabetes. |
| Authors: |
Laajala, Essi, Kalim, Ubaid Ullah, Grönroos, Toni, Rasool, Omid, Halla-aho, Viivi, Konki, Mikko, Kattelus, Roosa, Mykkänen, Juha, Nurmio, Mirja, Vähä-Mäkilä, Mari, Kallionpää, Henna, Lietzén, Niina, Ghimire, Bishwa R., Laiho, Asta, Hyöty, Heikki, Elo, Laura L., Ilonen, Jorma, Knip, Mikael, Lund, Riikka J., Orešič, Matej |
| Source: |
Diabetologia; Sep2022, Vol. 65 Issue 9, p1534-1540, 7p |
| Abstract: |
Aims/hypothesis: Distinct DNA methylation patterns have recently been observed to precede type 1 diabetes in whole blood collected from young children. Our aim was to determine whether perinatal DNA methylation is associated with later progression to type 1 diabetes. Methods: Reduced representation bisulphite sequencing (RRBS) analysis was performed on umbilical cord blood samples collected within the Finnish Type 1 Diabetes Prediction and Prevention (DIPP) Study. Children later diagnosed with type 1 diabetes and/or who tested positive for multiple islet autoantibodies (n = 43) were compared with control individuals (n = 79) who remained autoantibody-negative throughout the DIPP follow-up until 15 years of age. Potential confounding factors related to the pregnancy and the mother were included in the analysis. Results: No differences in the umbilical cord blood methylation patterns were observed between the cases and controls at a false discovery rate <0.05. Conclusions/interpretation: Based on our results, differences between children who progress to type 1 diabetes and those who remain healthy throughout childhood are not yet present in the perinatal DNA methylome. However, we cannot exclude the possibility that such differences would be found in a larger dataset. [ABSTRACT FROM AUTHOR] |
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| Database: |
Complementary Index |
