View clinical trials related to Glucagon Deficiency.
Filter by:The goal of this clinical trial is to investigate the etiopathogenesis of isolated hypoglycemia and hypoglycemia with abnormal glucose tolerance in children with Cystic Fibrosis (CF) and to evaluate the role of glucagon and pancreatic insufficiency on hypoglycemia in CF. The main questions it aims to answer are: 1. Do isolated hypoglycemia and hypoglycemia with abnormal glucose tolerance have different etiopathogenesis? 2. What is the role of pancreatic insufficiency in these two conditions? Participants were asked to perform 3-h OGTT and to take blood samples. Researchers compared with healthy peers to see if there is isolated hypoglycemia in OGTT and how is the glucagon response to OGTT in healthy peers.
Almost all people who have had type 1 diabetes for 5 years have a defect in secretion of the hormone Glucagon. This hormone is involved in the body's response to low blood glucose (hypoglycaemia). It works by releasing glucose stores from the liver to bring the blood glucose back to normal. This defect therefore increases the risk of severe hypoglycaemia. The reason for this Glucagon defect in people with Type 1 diabetes is currently unknown. This study aims to look at the Glucagon response to hypoglycaemia in 24 people with type 1 diabetes to ascertain whether tight blood glucose control over a period of time improves this response. The investigators aim to achieve good blood glucose control using new generation Automated Insulin Delivery systems (AIDs). This system is made of: an insulin pump, a continuous glucose monitor (CGM) and an algorithm that allows adjustment of insulin delivery based on the blood glucose readings from the CGM. This is the most up to date technology that there is in the management of type 1 diabetes. However, people using this technology often still have problems with high blood glucose after eating. To ensure a very good blood glucose control participants will also follow a low carbohydrate diet to prevent this blood glucose rise after meals. The Glucagon response to low blood glucose will be measured at zero and eight months using the hyperinsulinaemic hypoglycaemic clamp technique.