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Reg Hypoglycemie Bilan
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Reg Hypoglycemie Bilan

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  • 1. Cellule hépatique Cellule musculaire Adipocyte Circulation sanguine Glycémie
  • 2. Cellule hépatique Cellule musculaire Adipocyte Circulation sanguine G : Glucose G G G G G G G G G Glycémie Glucose Glycogène Glycogène Glucose 6 phosphate Lipides Acide gras + glycérol Cellule α Cellule β Pancréas 1 2 0
  • 3. Cellule hépatique Cellule musculaire Adipocyte Circulation sanguine G : Glucose glucagon G G G G G G G G G Glycémie Glucose Glycogène Cellule α Cellule β Pancréas 1 2 0 Lipides Acide gras + glycérol Glycogène Glucose 6 phosphate
  • 4. Cellule hépatique Cellule musculaire Adipocyte Circulation sanguine G : Glucose glucagon Récepteurs membranaires à l’insuline au glucagon G G G G G G G G G Glycémie 1 – détection d’une hypoglycémie 2- sécrétion de glucagon 3 – fixation du glucagon sur les cellules-cible 4 – stimulation de la glycogénolyse 5 – libération de glucose dans le milieu intérieur 6 – augmentation de la glycémie 1 2 3 4 5 6 Glucose Glycogène Cellule α Cellule β Pancréas 1 2 0 + Glycogène Glucose 6 phosphate Lipides Acide gras + glycérol