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Data · dataset · 2026

Genetic susceptibility in the relative maternal protection from type 1 diabetes

Listed in ZivaHub and Deakin Research Online and DMU Figshare — shown once because both records carry DOI 10.2337/figshare.33619168.v1

<p dir="ltr"><b>Objective:</b> Type 1 diabetes is half as common in offspring of affected mothers versus fathers.

Description

We investigated whether selective loss of fetuses with high genetic risk during type 1 diabetes pregnancy explains this relative protection.</p><p dir="ltr"><b>Research Design and Methods:</b> In 6942 TEDDY cohort live births, we compared genetic susceptibility by type 1 diabetes-affected family member and tested if it explained maternal protection from diabetes or its preclinical stages.</p><p dir="ltr"><b>Results: </b>The GRS2x did not differ between children with affected mothers (<i>P=</i>0.36) or siblings (<i>P=</i>0.27) versus fathers.

Relative maternal protection from type 1 diabetes and islet autoimmunity (IA) was observed with GRS2x adjustment (diabetes HR: 0.50, <i>P</i>=0.01; IA HR: 0.38, <i>P</i>=0.006) and without adjustment but not during progression from IA to diabetes. This protection wanes after age 6 years.</p><p dir="ltr"><b>Conclusions:</b> Intrauterine exposure to type 1 diabetes offers relative protection from IA during early childhood and is not explained by genetic susceptibility differences.</p>

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Where it is published

Catalogue records · 1

Topics

Inferred from text
Genetics 70%
Provenance · 3 source records, 15 field assertions
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ZivaHuboai:figshare.com:article/3361916812 d agoJSON v1
Deakin Research Onlineoai:figshare.com:article/3361916812 d agoJSON v1
DMU Figshareoai:figshare.com:article/3361916812 d agoJSON v1
FieldAssertionExtractorEvidence
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