Multiple endocrine neoplasia type 1 (MEN 1) is associated with an increased prevalence of diabetes mellitus and impaired fasting glucose
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McCallum, RW and Parameswaran, V and Burgess, JR, Multiple endocrine neoplasia type 1 (MEN 1) is associated with an increased prevalence of diabetes mellitus and impaired fasting glucose, Clinical Endocrinology, 65, (2) pp. 163-168. ISSN 0300-0664 (2006) [Refereed Article]
Objective: Multiple endocrine neoplasia type 1 (MEN 1) is an autosomal dominant syndrome characterized by primary hyperparathyroidism, pituitary neoplasia and foregut lineage neuroendocrine tumours. It has also been associated with premature cardiovascular death. As diabetes is a risk factor for increased cardiovascular mortality we investigated the prevalence and clinical correlates of glycaemic abnormalities in a large MEN 1 kindred. Patients and design: The glycaemic status of 72 MEN 1 affected and 133 unaffected members of a single large MEN 1 pedigree was assessed. Fasting glucose results were categorized and compared using WHO criteria. Associations between glycaemic status and MEN 1 phenotype were assessed. Results: Thirteen (18.1%) patients with MEN 1 compared to 5 (3.8%) control patients were diabetic (P < 0.001). Six (8.3%) MEN 1 patients had impaired fasting glucose compared to 4 (3%) of controls (P < 0.05). Of patients with MEN 1, uncontrolled hypercalcaemia (P < 0.05) and elevated serum gastrin (P < 0.05) were more common amongst patients diagnosed with abnormal glycaemia than those with normoglycaemia. There was a nonsignificant trend for elevated chromogranin A, pancreatic polypeptide, gastric inhibitory polypeptide (but not glucagon) and history of bronchopulmonary carcinoid in MEN 1 patients with elevated glycaemia. Conclusions Diabetes and impaired fasting glucose occur significantly more frequently amongst MEN 1 patients than controls and is associated with uncontrolled hyperparathyroidism and evidence of enteropancreatic hyperstimulation. © 2006 Blackwell Publishing Ltd.
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