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Acute Sulfonylurea therapy at disease onset can cause permanent remission of K ATP -induced diabetes Remedi MS et al. Diabetes . 2011; 60:2515-2522. Healthy. Neonatal Diabetes. High Glucose. Ca 2+. Mutations: KCNJ11 - ABCC8 (SUR1). Kir6.2. SUR1. Depolarization. Insulin Secretion.
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Acute Sulfonylurea therapy at disease onset can cause permanent remission of KATP-induced diabetesRemedi MS et al. Diabetes. 2011; 60:2515-2522
Healthy Neonatal Diabetes High Glucose Ca2+ • Mutations: • KCNJ11 • - ABCC8 (SUR1) Kir6.2 SUR1 Depolarization Insulin Secretion ATP K+ High ATP/ADP ratio
Healthy Neonatal Diabetes Sulfonylureas High Glucose Ca2+ • Mutations: • KCNJ11 • - ABCC8 (SUR1) Kir6.2 SUR1 Depolarization Different outcomes Insulin Secretion ATP K+ High ATP/ADP ratio
Healthy Neonatal Diabetes Sulfonylureas High Glucose Ca2+ • Mutations: • KCNJ11 • - ABCC8 (SUR1) Kir6.2 SUR1 Depolarization Different outcomes Insulin Secretion ATP K+ High ATP/ADP ratio Mouse neonate • KATP dependent neonatal diabetes • Hyperglycemia • Loss of β-cells
Healthy Neonatal Diabetes Sulfonylureas High Glucose Ca2+ • Mutations: • KCNJ11 • - ABCC8 (SUR1) Kir6.2 SUR1 Depolarization Different outcomes Insulin Secretion ATP K+ High ATP/ADP ratio Mouse neonate Sulfonylureas 6 days • KATP dependent neonatal diabetes • Hyperglycemia • Loss of β-cells Early onset of neonatal diabetes
Healthy Neonatal Diabetes Sulfonylureas High Glucose Ca2+ • Mutations: • KCNJ11 • - ABCC8 (SUR1) Kir6.2 SUR1 Depolarization Different outcomes Sulfonylureas Insulin Secretion Not cured (70%) ATP K+ High ATP/ADP ratio Cured (30%) Fed Glucose Mouse neonate Sulfonylureas time 6 days • KATP dependent neonatal diabetes • Hyperglycemia • Loss of β-cells Early onset of neonatal diabetes Insulin Content Not Cured Cured
Healthy Neonatal Diabetes Sulfonylureas High Glucose Ca2+ • Mutations: • KCNJ11 • - ABCC8 (SUR1) Kir6.2 SUR1 Depolarization Different outcomes Sulfonylureas Insulin Secretion Not cured (70%) ATP K+ High ATP/ADP ratio Cured (30%) Fed Glucose Mouse neonate Sulfonylureas time 6 days • KATP dependent neonatal diabetes • Hyperglycemia • Loss of β-cells Early onset of neonatal diabetes Insulin Content Not Cured Cured