doi:10.1210/jcem.86.7.7809
The peptide and G protein binding sites within GPCRs are allosterically linked to enable the transmission of information from peptide binding to G protein coupling
Enteroendocrine cells (EEC) comprise approximately 1% of the intestinal epithelium, but secrete more than 30 different peptide hormones, which makes them the largest endocrine system in the whole body (Worthington 2015)
You should also contact your GP if: You are unable to attend scheduled maintenance injections, as missing doses can lead to symptom recurrence You develop new symptoms that might indicate other deficiencies or health problems You are planning pregnancy, as B12 requirements may change You experience persistent side effects such as headaches, dizziness, or gastrointestinal symptoms If you experience any side effects, talk to your doctor, pharmacist or nurse
Contrary to GLP-1R mono-agonist, whose efficacy is limited by dose-dependent gastrointestinal events, the new triple agonists can simultaneously increase energy expenditure, reduce food intake, and improve glucose control by engaging all three receptors at once