A high prevalence of glucokinase mutations in gestational diabetic subjects selected by clinical criteria.

Abstract

Patients with glucokinase mutations are characterised by mild, persistent fasting hyperglycaemia, a small increment in glucose in response to an oral load and a dominant family history. These patients frequently present with gestational diabetes and often require insulin treatment during pregnancy. We assessed whether the selection of gestational diabetic subjects by clinical criteria would result in a high detection rate of glucokinase mutations.