To identify
differentially expressed miRNAs, serum miRNAs were profiled using the Human
serum/plasma miScript miRNA PCR array (n=4 per group). The expression of
miR-19b-3p was 6-fold (p=0.033) lower in women with GDM compared to controls,
miR-20a-5p was 4.5-fold (p=0.047) lower in women with T1DM compared to controls
and the expression of miR-29a-3p was 1.8-fold (p=0.002) higher in women with
T2DM compared to controls. Differential expression of additional nine miRNAs,
although not statistically significant (miR-155-5p,
miR-222-3p, miR-9-5p, miR-124-3p, miR-126-3p, miR-210-3p, miR-30d-5p,
miR-27a-3p and miR-128-3p) was demonstrated.
These differentially expressed miRNAs will be measured in serum and urine
samples using SYBR green individual primer assays
Funding
South African Medical Research Council (SAMRC), SAMRC Division of Research and Capacity Development, the National Research Foundation (NRF) (grant no. 120832) and the University of Pretoria postgraduate bursary