Endocrine Pancreas Flashcards
Beta Cell Secretions
Insulin and C Peptide
Alpha Cell Secretion
Glucagon
Delta Cell Secretion
Somatostatin
Insulin Stimulation
Increased Glucose, FAs, AAs, Potassium, Cortisol
Glucagon/GLP-1/GIP (via Gs)
Ach/CCK (via Gq)
Insulin Inhibition
Somatostatin (via Gi)
Adrenergic receptor activation
Fasting, Exercise or Decreased Glucose
Insulin Actions
Increased Glucose/Potassium uptake, Glycogenesis, Protein Synthesis, Lipid Synthesis
Decreased Gluconeogenesis, Glycogenolysis, Lipolysis,
Type 1 Diabetes Characteristics
Increased blood Glucose/FA/AA/Ketoacids
Metabolic Acidosis
Decreased Potassium uptake
Hyperkalemia
Osmotic Diuresis
Type 2 Diabetes Characteristics
Decreased GLUT4 functioning
Decreased inhibition of hepatic glucose by insulin
Decreased inhibition of HSL by insulin
Decreased incretin effect
Hyperglucagonemia
Less prone to ketoacidosis
Glucagon Stimulation
Decreased blood glucose (fasting)
Increased AA, CCK, Ach and Beta agonists
Glucagon Inhibition
Increased Insulin, Somatostatin, FAs and Ketoacids
Glucagon Liver Effects
Increased glycogenolysis, gluconeogenesis and lipolysis
Decreased glycogenesis and FA synthesis