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Year : 2012  |  Volume : 44  |  Issue : 5  |  Page : 602-606

Preventive effect of glycosaminoglycans from Amussium pleuronectus (Linne) on biomolecules, lactate dehydrogenase-isoenzyme and electrocardiographic patterns in isoproterenol-induced myocardial infarction in Wistar rats

1 Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai, India
2 Department of Physiology, Raja Muthiah Medical College, Annamalai University, Annamalai Nagar, Tamil Nadu, India

Correspondence Address:
Ramachandran Saravanan
Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0253-7613.100385

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Objectives: This study was aimed to assess the cardioprotective role of low molecular weight glycosaminoglycans (LMW-GAG) in isoproterenol (ISO)-induced myocardial infarction (MI) in male Wistar rats. Effect of LMW-GAG on biomolecules, lactate dehydrogenase (LDH)-isoenzyme, and electrocardiographic (ECG)-patterns was studied as evidence of cardioprotection. Materials and Methods: Male Wistar rats (140 ± 10 g) were divided into four groups; untreated control (group I), LMW-GAG treated (300 μg/day s. c. for 2 weeks-group II), ISO (85 mg s.c. injected on 13 th and 14 th days-group III), and LMW-GAG plus ISO (300 μg/day s. c. for 12 days followed by 85 mg/kg ISO on the end of 13 th and 14 th days-group IV). At the end of the experimental period, all animals were terminated. Results: Rats treated with LMW-GAG (300 μg/kg) for 12 days showed significant increasing levels of triglyceride (TG) (both serum and heart tissue), low density lipoprotein (LDL), very low density lipoprotein (VLDL), total cholesterol, uric acid, creatinine, and glucose. However, it significantly decreased the levels of high density lipoprotein (HDL) (serum), plasma total protein, and albumin/globulin (A/G) ratio. ISO also adversely affected the LDH-isoenzymes and caused marked elevation in ST segment. Pretreatment with LMW-GAG (300 μg/kg) daily for a period of 2 weeks prevented the ISO-treated changes. Conclusions: The results indicate that LMW-GAG exhibits a cardioprotective effect in ISO-induced MI in rats, by maintaining the biomolecules and LDH-isoenzymes.


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