Which incretin hormone is deficient or has a blunted response in type 2 diabetes and normally stimulates insulin secretion in a glucose-dependent manner?
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A
Cholecystokinin (CCK)
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B
Glucagon-like peptide-1 (GLP-1)
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C
Gastric inhibitory polypeptide (GIP) — and it remains fully intact in T2D
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D
Peptide YY (PYY)