Olga ORĂŞAN

Publications (2)0 Total impact

• Source

  Available from: intmed.ro

  Article: Endothelial dysfunction in metabolic syndrome.

  Angela Cozma, Olga Orăşan, D Sâmpelean, Adriana Fodor, C Vlad, V Negrean, N Rednic, D Zdrenghea
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  ABSTRACT: Metabolic syndrome (MS) or insulin resistance syndrome is the result of multiple metabolic abnormalities associated with cardiovascular disease. Since 1988, when Reaven first described MS, many researches have been conducted in order to understand its pathophysiology, epidemiology, prognostic implications and therapeutic strategies. Numerous metabolic abnormalities found in the metabolic syndrome, including hyperglycemia, excessive fatty acids and insulin resistance, cause an endothelial cell dysfunction by affecting nitric oxide synthesis or degradation. Although the exact mechanism by which metabolic syndrome induces endothelial dysfunction remains to be clarified, there are many possibilities of vascular endothelial damage and increase in cardiovascular risk in these patients. The most frequent metabolic, hormonal, hemostatic abnormalities in patients with metabolic syndrome that may contribute to endothelial dysfunction are: hyperinsulinemia, hyperglycemia, increase in fatty acid levels, hypertriglyceridemia, decrease in HDL-cholesterol, increase in small dense LDL-cholesterol, increase in apolipoprotein B, increase in insulin-1 growth factor levels, increase in tissue angiotensin II levels, increase in plasminogen activator inhibitor-1, increase in C reactive protein, increase in oxidative stress.
  Romanian journal of internal medicine = Revue roumaine de médecine interne 01/2009; 47(2):133-40.
• Source

  Available from: umfcluj.ro

  Article: Impact of the Defining Criteria and Components of Metabolic Syndrome on Arterial Stiffness Parameters

  Angela Cozma, Adela Viviana SITAR-TĂUT, Dan Andrei SITAR-TĂUT, Olga ORĂŞAN, Daniel Corneliu Leucuţa, Dana Pop, Dumitru Tudor ZDRENGHEA
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  ABSTRACT: Background: Metabolic syndrome is associated with an increase in cardiovascular morbidity and mortality. Since the first description of MS, several definitions have been elaborated (IDF, AHA, Who, NCEP). Arterial stiffness is a strong independent predictor of cardiovascular events and cardiovascular mortality in various groups of patients. Aim: The purpose of present study was to investigate the impact of the different definitions of MS on arterial stiffness. Material and Methods: we investigated 214 patients, mean age 60.04±9.98 years. Arterial stiffness was evaluated using TensioMed TM Arteriograph. Results: Using the three definitions of the metabolic syndrome – IDF 2005, AHA, NCEP -, a proportion of 71.5% (153 patients), 72.9% (156 patients) and 62.1% (133 patients), respectively, had metabolic syndrome. Pulse wave velocity in the group of patients with metabolic syndrome was increased compared to those without metabolic syndrome, but the difference was not statistically significant (IDF - 10.37±2.13m/sec vs 10.04±2.21m/sec, AHA 10.40±2.14m/sec vs 9.93±2.19m/sec, NCEP 10.47±1.86m/sec vs 9.95±2.55m/sec). A statistically significant difference between pulse wave velocity in men with metabolic syndrome compared to those without metabolic syndrome was found, the relationship being not true in women. Conclusion: Patients with MS (especially men) have increased arterial stiffness parameters than those without metabolic syndrome. All the three definitions used have the same ability to identify patients with arterial stiffness. Arterial stiffness parameters are more altered as the number of criteria for the definition of metabolic syndrome increases, regardless of the definition used.
  Applied Medical Informatics; Vol 27, No 4 (2010); 39-46.