Increased expression of microRNA-15a and microRNA-15b in skeletal muscle from adult offspring of women with diabetes in pregnancy
| Autor: | Maren Schrölkamp, Louise Kelstrup, Tine D. Clausen, Azadeh Houshmand-Oeregaard, Peter Damm, Christa Broholm, Allan Vaag, Elisabeth R. Mathiesen, Ninna S. Hansen, Line Hjort, Anne Cathrine B. Thuesen |
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| Rok vydání: | 2018 |
| Předmět: |
Adult
Male 0301 basic medicine medicine.medical_specialty Offspring Type 2 diabetes Biology Epigenesis Genetic 03 medical and health sciences Insulin resistance Pregnancy Internal medicine Diabetes mellitus Genetics medicine Humans Insulin Muscle Skeletal Molecular Biology Genetics (clinical) Glycated Hemoglobin Type 1 diabetes Skeletal muscle General Medicine medicine.disease Gestational diabetes Diabetes Gestational MicroRNAs 030104 developmental biology medicine.anatomical_structure Endocrinology Diabetes Mellitus Type 2 Gene Expression Regulation Adult Children Female Insulin Resistance |
| Zdroj: | Human Molecular Genetics. 27:1763-1771 |
| ISSN: | 1460-2083 0964-6906 |
| DOI: | 10.1093/hmg/ddy085 |
| Popis: | Offspring of women with diabetes in pregnancy exhibit skeletal muscle insulin resistance and are at increased risk of developing type 2 diabetes, potentially mediated by epigenetic mechanisms or changes in the expression of small non-coding microRNAs. Members of the miR-15 family can alter the expression or function of important proteins in the insulin signalling pathway, affecting insulin sensitivity and secretion. We hypothesized that exposure to maternal diabetes may cause altered expression of these microRNAs in offspring skeletal muscle, representing a potential underlying mechanism by which exposure to maternal diabetes leads to increased risk of cardiometabolic disease in offspring. We measured microRNA expression in skeletal muscle biopsies of 26- to 35-year-old offspring of women with either gestational diabetes (O-GDM, n = 82) or type 1 diabetes (O-T1DM, n = 67) in pregnancy, compared with a control group of offspring from the background population (O-BP, n = 57) from an observational follow-up study. Expression of both miR-15a and miR-15b was increased in skeletal muscle obtained from O-GDM (both P < 0.001) and O-T1DM (P = 0.024, P = 0.005, respectively) compared with O-BP. Maternal 2 h post OGTT glucose levels were positively associated with miR-15a expression (P = 0.041) in O-GDM after adjustment for confounders and mediators. In all groups collectively, miRNA expression was significantly positively associated with fasting plasma glucose, 2 h plasma glucose and HbA1c. We conclude that fetal exposure to maternal diabetes is associated with increased skeletal muscle expression of miR-15a and miR-15b and that this may contribute to development of metabolic disease in these subjects. |
| Databáze: | OpenAIRE |
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