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Background and Objective: Paraoxonase-1 is an important factor in preventing lipid oxidation and formation of oxidized low-density lipoprotein. There are conflicting reports on the impact of physical activity on serum level of Paraoxonase-1. This study was done to determine the effect of four weeks of endurance training on serum level of Paraoxonase-1 and lipid profile in non-athlete obese men. Method: In this clinical trial study, sixteen obese healthy non-athletic men randomly divided into intervention and control groups. Subjects in interventional group were practiced endurance running periodic for four weeks, three sessions a week with 65-80% of maximum heart rate. Blood samples collected 48 hours perior the first and 48 hours following the final training. Serum level of Paraoxonase-1 and lipid profile including cholesterol, triglycerides, low-density lipoprotein and high-density lipoprotein were measured by ELISA method. Results: At the end of the training, the serum level of of paraoxonase -1 increased 15.57% (P<0.05) in interventional group and non-significantly reduced in control group (19.25%). The serum level of serum Paraoxonase-1 in interventional group significantly increased compared to controls (P<0.05). The serum level of low-density lipoprotein in interventional group significantly reduced in comparision with controls (P<0.05). Conclusion: 4 weeks of endurance training increased serum level of paraoxonase -1 and decreased lowdensity lipoprotein in non-athlete obese men. [ABSTRACT FROM AUTHOR]

Background and Objective: Fluctuation in the homeostasis system is one of the main causes of heart attacks. There are contradectry reports regarding the effect of regular exercise, particularly resistance training on hemostasis indeces. This study was done to determine the effect of 8 weeks of resistance training on hemostasis indeces and lipid profile in adult men. Methods: In this clinical trail study, 16 adult men were randomly divided into interventional and control groups. Subjects in interventional group participated in a resistance training program including a period 3 days a week for 8 weeks session. Body mass index, level of fibrinogen, protrombin time (PT), partial thromboplastin time (PTT), platelet count, D-dimer fibrinolytic factor, Cholesterol, Triglyceride, HDL and LDL were measured for each subject. Results: After 8 weeks of resistance training, the level of fibrinogen, PT, PTT and platelets count were significantly reduced and D-dimer fibrinolytic factor increased in interventional group in compared to controls (P<0.05). Serum level of Cholesterol, Triglyceride, HDL and LDL had no significant change in interventional group in comparsion with the controls. Conclusion: Resistance training reduces hemostasis indeces in adult men. [ABSTRACT FROM AUTHOR]

Background and Objective: In pathogenesis of beta major thalassemia, tissue damage is occurring due to oxidative stress. The present study was designed to evaluate the effects of vitamin E supplementation on serum Paraoxonase, SOD, GPX enzyme activity and lipid profiles in beta major thalassemia patients. Materials and Methods: In this clinical tiral study, Sixty (25 males, 35 females) beta major thalassemia patients with age⩾18 years who had criterias to enter the study, were selected randomely in two groups. The patients in interventional group, vitamin E at a dose of 400 mg/day were given for three months, with no supplementations in control group. The enzyme activities of paraoxonase, SOD, GPX and lipid profiles (LDL-c, HDL-c, triglyceride, total Antixidant Capacity) were measured prior and after 3 months in both case and control groups. Data analyzed by using paired t-test. Results: Significant increases in serum levels of vitamin E, Paraoxonase activity, HDL cholesterol (P<0.001), BMI (P⩽0.001) and a significant reduction in GPX activity (P<0.05) were observed in cases compared to controls. Conclusion: The vitamin E supplementation may be useful in reducing oxidative stress and lipid profiles in beta major thalassemic patients. [ABSTRACT FROM AUTHOR]