Background: Women with a history of gestational diabetes (p-GDM) are at increased risk of developing type 2 diabetes mellitus (DM2) later in life, and therefore at increased risk for future cardiovascular disease.
Materials And Methods: Three months after delivery we investigated the plasma levels of plasminogen activator inhibitor type 1 (PAI-1), tissue plasminogen activator (t-PA), fibrinogen and von Willebrand factor (vWF) in 74 women with p-GDM and 20 healthy females with normal glucose tolerance during and after pregnancy, as well as the relation of fibrinolytic parameters to insulin resistance and glycaemic control. All women underwent an oral (OGTT) as well as an intravenous glucose tolerance test (FSIGT). Mathematical model analysis disclosed that 50% (n=37 each) of the p-GDM subjects had normal (NIS) or impaired (IIS) insulin sensitivity. Parameters of interest were determined using commercially available test systems.
Results: Women with p-GDM and IIS had significantly increased body fat mass (BFM) (P
Conclusions: Plasminogen activator inhibitor type 1 is elevated in p-GDM women with IIS and depends on plasma proinsulin and abdominal obesity. An increase of the PAI-1/SI ratio further characterizes obese insulin-resistant p-GDM women who may be at risk for diabetes and angiopathy.
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