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Serum Concentration of Ghrelin, Oxidative Stress and Lipid Parameters in Obese Subjects

DOI: 10.26650/EurJBiol.2018.18008 Objective: Ghrelin is a hormone with peptide structure. It has fatty tissue and increases appetite. Obesity is a multifactorial chronic disease characterized by an increase in fat tissue. Fat tissue, like the endocrine organ, triggers oxidative stress and can lead to the development of obesity-related pathologies. The purpose of this study is to examine the relationship between the ghrelin in blood, and oxidative stress and lipid parameters. Materials and Methods: The study was conducted with  61 obese and 24 healthy individuals. Ghreline levels were measured using the ELISA method, while total antioxidant status (TAS) and oxidant status (TOS), triglyceride (TG), total cholesterol (TC), HDL-cholesterol (HDL-C) and LDL cholesterol (LDL-C) levels were measured using the photometric method. Results: A negative correlation was found between body mass index (BMI) and ghrelin levels in the obese group (p 0.05). TAS was observed to be lower in obese compared to control group, while The Oxidative Stress Index (OSI) was found to be significantly higher than the obese group (p 0.05). Conclusion: Increasing obesity level (BMI) and decreasing ghrelin level were found to be correlated. New studies are needed in order to discover the changes in ghrelin level connected to oxidative stress.