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Metabolic syndrome: from insulin resistance to adipose tissue dysfunction.
2008
Recently the definition, the pathophysiology and even the clinical utility of metabolic syndrome (MS) have been discussed. The risk induced by each component of the metabolic syndrome is higher than the risk induced by MS alone. MS alone is, in fact, a weaker predictor of cardiovascular disease than diabetes. New criteria to define the metabolic syndrome have been proposed, as adipokines, CRP and PAI-1. IGFBP-1 is related to hyperinsulinemia/insulin resistance and to the risk of diabetes and fatal ischemic heart disease development. IGF/IGFBP system could be a link between insulin resistance and cardiovascular disease. RBP-4 can attenuate insulin signalling in skeletal muscle and induce hep…
Polymorphonuclear leukocytes and diabetes mellitus.
2008
Diabetic subjects have a higher infective risk than healthy people, with more frequent and severe infections. This predisposition to infections is determined by hyperglycemia, microangiopathy and altered immune system. In particular, there is a polymorphonuclear leukocytes disfunction including chemotaxis, phagocytosis, bacterial killing and cellular activation by infective stimulus. These alterations are due to abnormal properties of polymorphonuclear leukocytes (PMN) in diabetic patients. Several parameters like phagocytosis of bacterial cells, chemiluminescence during oxidative burst and cell membrane deformability are related to glycaemia and glycated hemoglobin. Recent acquisitions sho…