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  • Title: [Decrease of insulin resistance after splenectomy in a diabetic patient with liver cirrhosis and portal hypertension. Physiopathologic evaluation].
    Author: Moro E, Pais M, Benvegnù M, Ferrari M, Bittolo Bon G.
    Journal: Minerva Gastroenterol Dietol; 1994 Dec; 40(4):213-8. PubMed ID: 7849151.
    Abstract:
    Liver cirrhosis is characterized by an increased incidence of glucose intolerance, diabetes and insulin resistance. We report a cirrhotic man (41 years old) who developed glucose intolerance and diabetes with insulin resistance over a period of six years. This patient suffered from severe portal hypertension with oesophageal varices and a enormously increased spleen volume. The subject underwent prophylactic endoscopic sclerotherapy of oesophageal varices. Splenectomy was performed because of severe piastrinopenia with recurrent nose bleeding. During laparotomy, multiple liver biopsies confirmed diagnosis of liver cirrhosis. Intra-operatory exploration revealed a splenic vein thrombosis. For this reason the planned spleno-renal shunting was not performed and the patient was only submitted to splenectomy. Liver function improved in the month following splenectomy and concomitant decrease of insulin resistance was observed (with a reduction in daily insulin dosage from 126 to 10 I.U.). We propose the following explanations of this event: 1) A decrease of portal and pancreatic vein pressure may have induced a proportional decrease (as already reported) of glucagon secretion. 2) The ameliorated liver function may have induced an improvement of liver glucose, insulin and glucagon metabolism. 3) A reduction of insulin circulating level (proved by a decrease of C Peptide value) may have lessened the insulin receptor down-regulation.
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