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  • Title: Glucose metabolism in the idiopathic blepharoptosis: utility of the Oral Glucose Tolerance Test (OGTT) and of the Insulin Resistance Index.
    Author: Bosco D, Costa R, Plastino M, Branca D, Cotronei P, Sperlì T, Santacroce N, Siniscalchi A, Consoli D, Ceccotti C, Mungari P, Fava A.
    Journal: J Neurol Sci; 2009 Sep 15; 284(1-2):24-8. PubMed ID: 19361813.
    Abstract:
    BACKGROUND: Diabetes mellitus (DM), neuromuscular, hereditary or immunological disorders are the most common identified causes of blepharoptosis. However, in about 15-25% they remained uncertain. OBJECTIVE: To determined the role of glucose metabolism abnormality in idiopathic blepharoptosis. METHODS: We identified 162 patients with unilateral idiopathic blepharoptosis and 128 control subjects. In all we evaluated a glucose and insulin levels at fasting and after 2 h-OGTT. In addition we determined insulin resistance (IR), by HOMA-index. RESULTS: Following a 2 h-OGTT the prevalence of undiagnosed glucose metabolism abnormality was significantly higher in blepharoptosis patients vs. control group (P<.001). The IR was documented in 129 patients (78%), of whom 55 (34%) had Impaired Glucose Tolerance (IGT), 36 (22%) newly diagnosed DM (NDDM) and 38 (30%) only IR. The Body Mass Index, blood pressure, serum lipids, triglycerides and smoking were not associated with an increased risk of developing ptosis. Conversely, waist circumference were significantly increased in blepharoptosis patients (P=.003). CONCLUSIONS: In this study we focused on emerging evidence that prediabetic status may represent a risk factor for developing blepharoptosis. We propose that 2 h-OGTT and mainly HOMA-index should be determined as a rule in all patients with idiopathic blepharoptosis.
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