In female mice, removing the receptors for two gut hormones (GIP and GLP-1) causes blood sugar to rise abnormally after eating sugar, but not after injecting sugar directly into the bloodstream,...

In female mice, when the receptors for two specific gut hormones (GIP and GLP-1) are removed, the body no longer releases extra insulin after eating glucose compared to receiving it directly into the bloodstream, even when blood sugar levels are the same. This suggests these two hormones are responsible for the increased insulin response seen after eating.

In female mice, removing receptors for two gut hormones reduces the pancreas's ability to release insulin in response to sugar taken by mouth, but not when sugar is injected directly into the bloodstream, showing that these hormones help the pancreas respond to food entering the gut.

In female mice, removing the receptors for two gut hormones (GIP and GLP-1) prevents the normal increase in insulin production after eating glucose, reducing the insulin response by about 65% compared to normal mice, showing that these two hormones are responsible for most of the insulin boost triggered by oral glucose in this model.

In female mice, removing receptors for GIP and GLP-1 hormones does not stop the pancreas from releasing insulin when glucose is injected into the bloodstream, showing that the pancreas can still detect glucose levels even without these hormonal signals.

GLP-1 and GIP are hormones that increase insulin production and decrease glucagon production when nutrients are consumed, which helps control blood glucose levels.