Prevention of diabetes and prolongation of the honeymoon phase of diabetes by administration of GnRH antagonists

   
   

A method for reducing the incidence or delaying the onset of diabetes in diabetes-susceptible mammals (e.g., mice, rats, humans) is provided wherein the mammals are treated with a gonadotropin-releasing hormone (GnRH) antagonist. Additionally, the present invention provides a method of prolonging the honeymoon phase and decreasing the rate of islet cell infiltration by lymphocytes by administration of a GnRH antagonist. Preferably, the antagonist is administered repeatedly over time by subcutaneous injection. Preferred antagonists include Acetyl-.beta.-[2-Naphthyl]-D-Ala-D-p-Chloro-Phe-.beta.-[3-Pyridyl]-D-Ala-S er-N.epsilon.-[Nicotinoyl]-Lys-N.epsilon.-[Nicotinoyl]-D-Lys-Leu-N.epsilon. -[Isopropyl]-Lys-Pro-D-Ala-NH.sub.2, Nal-Glu, Abarelix, Degarelix, and acetyl-D2Nal-D4CIPhe-D3Pal-Ser-Aph(Ac)-D-Aph(Ac)-Leu-Lys(lpr)-Pro-D-Ala-NH 2.

Un metodo per la riduzione dell'incidenza o un delaying l'inizio del diabete in mammiferi diabete-suscettibili (per esempio, mouse, ratti, esseri umani) è fornito in cui i mammiferi sono trattati con un antagonista gonadotropin-liberantesi dell'ormone (GnRH). Ulteriormente, la presente invenzione fornisce un metodo di prolungamento della fase di honeymoon e di fare diminuire il tasso di infiltrazione delle cellule dell'isolotto dai linfociti tramite la gestione di un antagonista di GnRH. Preferibilmente, l'antagonista è amministrato ripetutamente col tempo tramite l'iniezione sottocutanea. Gli antagonisti preferiti includono Acetyl-.beta.-[2-Naphthyl]-D-Ala-D-p-Chloro-Phe-.beta.-[3-Pyridyl]-D-Ala-S er-N.epsilon.-[Nicotinoyl]-Lys-N.epsilon.-[Nicotinoyl]-D-Lys-Leu-N.epsilon. -[Isopropyl]-Lys-Pro-D-Ala-NH.sub.2, Nal-Glu, Abarelix, Degarelix ed acetyl-D2Nal-D4CIPhe-D3Pal-Ser-Aph(Ac)-D-Aph(Ac)-Leu-Lys(lpr)-Pro-D-Ala-NH 2.

 
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