AB1098
OBESITY AND INSULIN RESISTANCE IN FIBROMYALGIA PATIENTS
R. D. Grembiale 1,*F. Ursini 1C. Bruno 1F. Savarino 1S. Naty 1
1Medical And Surgical Sciences, University Of Catanzaro Magna Graecia, Catanzaro, Italy
Background: Fibromyalgia is a chronic disorder of uncertain etiology characterized by widespread pain and reduced threshold to pressure and other stimuli. Scientific evidences show a relationship between fibromyalgia and obesity. Insulin resistance, a key feature of obesity and metabolic syndrome (MS), is a now well-recognized cardiovascular risk factor.
Objectives: Objective of the study was to evaluate insulin resistance in fibromyalgia patients compared with age- and sex- matched healthy women.
Methods: For the present study 53 consecutive fibromyalgia female patients referred to the Internal Medicine Unit, University of Catanzaro (Italy) for chronic widespread pain were recruited. Fibromyalgia was diagnosed by a single specialist according to 1990 American College of Rheumatology (ACR) Criteria [1]. For comparison, 50 healthy age- matched female subjects were used.
Body mass index (BMI), blood insulin and glucose were measured after overnight fasting. HOMA-IR, a surrogate measure of insulin resistance, was calculated as previously described by Matthews et al. [2]
Results: Mean age was 58.3 ± 6.9 for patients and 56.6 ± 7.4 for controls (p > 0.05). Patient’s BMI and HOMA-IR, an indirect measure of insulin resistance, were significantly higher compared to healthy age- matched controls (p < 0.01 and p < 0.05 respectively).
Conclusions: Fibromyalgia patients have a higher degree of insulin resistance compared to healthy age-matched controls.
References: [1] Wolfe, F., et al., The American College of Rheumatology 1990 Criteria for the Classification of Fibromyalgia. Report of the Multicenter Criteria Committee. Arthritis Rheum, 1990. 33(2): p. 160-72.
[2] D.R. Matthews, J.P.Hosker. Homeostasis model assessment: insulin resistance and β-cell function from fasting plasma glucose and insulin concentrations in man Diabetologia 1985;28: 412-9
Disclosure of Interest: None Declared