scholarly journals Sundarban Honey Confers Protection against Isoproterenol-Induced Myocardial Infarction in Wistar Rats

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Rizwana Afroz ◽  
E. M. Tanvir ◽  
Nurul Karim ◽  
Md. Sabir Hossain ◽  
Nadia Alam ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Troponin I ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Lipid Peroxide ◽  
Myocardial Damage ◽  
Lipoprotein Cholesterol ◽  
Albino Rats ◽  
Marker Enzyme ◽  
Creatine Kinase Mb

The present study was designed to investigate the cardioprotective effects of Sundarban honey (SH) in rats with isoproterenol- (ISO-) induced myocardial infarction. Adult male Wistar Albino rats were pretreated with Sundarban honey (5 g/kg) daily for a period of 6 weeks. After the treatment period, ISO (85 mg/kg) was subcutaneously injected into the rats at 24 h intervals for 2 days. ISO-induced myocardial damage was indicated by increased serum cardiac specific troponin I levels and cardiac marker enzyme activities including creatine kinase-MB, lactate dehydrogenase, aspartate transaminase, and alanine transaminase. Significant increases in serum total cholesterol, triglycerides, and low-density lipoprotein-cholesterol levels were also observed, along with a reduction in the serum high-density lipoprotein-cholesterol level. In addition to these diagnostic markers, the levels of lipid peroxide products were significantly increased. The activities of antioxidant enzymes such as superoxide dismutase, glutathione peroxidase, and glutathione reductase were significantly decreased in the hearts after ISO-induced myocardial infarction. However, pretreatment of ischemic rats with Sundarban honey brought the biochemical parameters to near normalcy, indicating the protective effect of Sundarban honey against ISO-induced ischemia in rats. Histopathological findings of the heart tissues further confirmed the biochemical findings, indicating that Sundarban honey confers protection against ISO-induced oxidative stress in the myocardium.

scholarly journals Low HDL Cholesterol, Smoking and IL-13 R130Q Polymorphism are Associated with Myocardial Infarction in Greek Cypriot Males. A Pilot Study

2008 ◽  
Vol 2 (1) ◽  
pp. 52-59 ◽  
Author(s):  
Stavroulla Xenophontos ◽  
Marilena Hadjivassiliou ◽  
Alexandros Karagrigoriou ◽  
Nafsika Demetriou ◽  
George Miltiadous ◽  
...  
Keyword(s):  
Risk Factors ◽  
Myocardial Infarction ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Hdl Cholesterol ◽  
Lipoprotein Cholesterol ◽  
Greek Cypriot ◽  
Low Hdl ◽  
First Time ◽  
Control Study

This study was carried out in Greek Cypriot males to identify risk factors that predispose to myocardial infarction (MI). Genetic and lipid risk factors were investigated for the first time in a Greek Cypriot male case-control study.Contrary to other studies, mean low density lipoprotein cholesterol did not differ between cases and controls. High density lipoprotein cholesterol on the other hand, although within normal range in cases and controls, was significantly higher in the control population. In agreement with many other studies, smoking was significantly more prevalent in cases compared with controls. In pooled cases and controls, smokers had a significantly lower HDL-C level compared with non-smokers. The frequency of the IL-13 R130Q homozygotes for the mutation (QQ), as well as the mutant allele were significantly higher in cases compared with controls. The IL-13 R130Q variant, or another locus, linked to it, may increase the risk of MI.

scholarly journals CARDIOPROTECTIVE EFFECT OF DATE PALM AGAINST DOXORUBICIN-INDUCED CARDIOTOXICITY

2018 ◽  
Vol 11 (7) ◽  
pp. 141 ◽  
Author(s):  
Shimaa Mubarak ◽  
Shadia Abdel Hamid ◽  
Abdel Razik Farrag ◽  
Nahla Samir ◽  
Jihan Seid Hussein
Keyword(s):  
Date Palm ◽  
Cardiac Tissue ◽  
Density Lipoprotein ◽  
Heart Tissue ◽  
Lipoprotein Cholesterol ◽  
Medical Community ◽  
Albino Rats ◽  
Fruit Extract ◽  
Palm Fruit ◽  
Creatine Kinase Mb

Objective: Doxorubicin (Dox), an anthracycline antibiotic, has been widely used to treat cancer, principally hematological malignancies, and solid tumors. The administration of Dox is a topic of concern in the medical community, as it frequently related to dose-dependent cardiotoxicity. Therefore, the present study was designed to investigate the protective potential of date palm fruit extract on Dox-induced cardiotoxicity.Methods: A total of 40 female albino rats were used in this study and classified into four groups including control, date palm fruit extract, Dox, and treated date palm fruit extract groups.Results: Dox produced a significant increase in creatine kinase-MB and lactate dehydrogenase activities. It also decreased the activities of cardiac glutathione peroxidase and superoxide dismutase but increase levels of cardiac malondialdehyde and also of urinary 8-hydroxy-2-deoxyguanosine. Myocardial toxicity of Dox also appeared in the elevation of serum total cholesterol, triglycerides, and low-density lipoprotein cholesterol levels, while level of high-density lipoprotein cholesterol decreased. Histopathological studies revealed alteration of cardiac tissue structure by Dox. Treatment with date palm fruit extract restored the aforementioned parameters.Conclusion: Date palm fruit exhibits a cardioprotective influence on the heart tissue against toxicity induced by Dox.

Arbutin prevents alterations in mitochondrial and lysosomal enzymes in isoproterenol-induced myocardial infarction: An in vivo study

2020 ◽  
Vol 40 (1) ◽  
pp. 100-112
Author(s):  
S Sivasangari ◽  
L Asaikumar ◽  
L Vennila
Keyword(s):  
Myocardial Infarction ◽  
Lysosomal Enzymes ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Heart Tissue ◽  
Lipoprotein Cholesterol ◽  
Tissue Homogenate ◽  
Mitochondrial Enzymes ◽  
Low Density ◽  
Low Density Lipoprotein Cholesterol

The present study demonstrated the protective effects of arbutin (ARB) on hyperlipidemia, mitochondrial, and lysosomal membrane damage and on the DNA damage in rats with isoproterenol (ISO)-induced myocardial infarction (MI). Rats were pretreated with ARB (25 and 50 mg/kg body weight (bw)) for 21 days. After pretreatment with ARB, MI was induced by subcutaneous injection of ISO (60 mg/kg bw) for two consecutive days at an interval of 24 h. The levels of TC, TG, and FFA were increased and decreased the level of PL in the heart tissue of ISO-induced MI rats. Very-low-density lipoprotein cholesterol and low-density lipoprotein cholesterol were increased while high-density lipoprotein cholesterol was decreased in the plasma of ISO-administered rats. A heart mitochondrial fraction of the ISO rats showed a significant decrease in the activities of mitochondrial enzymes isocitrate dehydrogenase, α-ketoglutarate dehydrogenase, succinate dehydrogenase, and malate dehydrogenase. The activities of lysosomal enzymes (β-glucosidase, β-glucuronidase, α-galactosidase, β-galactosidase, cathepsin-B, and cathepsin-D) were increased significantly in the heart tissue homogenate of disease control rats. In ISO-induced MI, rat’s significant increase in the percentage of tail DNA and tail length, and a decrease in the level of head DNA were also observed. ARB administration to MI rats brought all these parameters to near normality, showing the protective effect of ARB against MI in rats. The results of this study demonstrated that the 50 mg/kg bw of ARB shows higher protection than 25 mg/kg bw against ISO-induced damage.

scholarly journals Hepatoprotective effect of aqueous extract of cardamom against gentamicin induced hepatic damage in rats

2015 ◽  
Vol 5 (1) ◽  
pp. 1 ◽  
Author(s):  
Mohamed Aboubakr ◽  
Abdelazem Mohamed Abdelazem
Keyword(s):  
Aqueous Extract ◽  
Histopathological Examination ◽  
Low Density Lipoprotein ◽  
Elevated Serum ◽  
Density Lipoprotein ◽  
Serum Levels ◽  
Hepatoprotective Activity ◽  
Lipoprotein Cholesterol ◽  
Albino Rats ◽  
Aqueous Extracts

<p>The study was designed to evaluate the hepatoprotective activity of aqueous extract of cardamom in acute experimental liver injury induced by gentamicin. Twenty four male albino rats were randomly divided into four groups (six rats in each). Animals of the first group served as control and orally (p.o.) received (1 ml/kg saline). The second experimental group was given gentamicin (80 mg/kg i.p.) for 7 days. Third and fourth groups were given aqueous extract of cardamom (100 and 200 mg/kg p.o.) + gentamicin for 7 days, respectively. The degree of hepatoprotection was measured using serum aspartate aminotransferase (AST), alanine aminotransferase (ALT), bilirubin, albumin, and lipid profile levels. In the acute liver damage induced by gentamicin, cardamom aqueous extracts (100 and 200 mg/kg, p.o.) significantly reduced the elevated serum levels of AST, ALT, bilirubin, cholesterol, triglycerides and low density lipoprotein cholesterol (LDL-chol) in gentamicin induced hepatotoxicity. Also cardamom aqueous extracts (100 &amp; 200 mg/kg, p.o.) significantly increased the lowered serum levels of albumin and high density lipoprotein cholesterol (HDL-chol) in gentamicin induced hepatotoxicity rats. Histopathological examination of the liver tissues supported the hepatoprotection. Our findings concluded that cardamom aqueous extracts possessed hepatoprotective activity against gentamicin induced hepatotoxicity in rats.</p>

scholarly journals Effect of Curcuma longa (Turmeric) on serum creatine kinase-MB and troponin I in isoproterenol induced myocardial infarction in wistar albino rats

2018 ◽  
Vol 13 (2) ◽  
pp. 47-53
Author(s):  
Sharmin Nahar ◽  
Qazi Shamima Akhter
Keyword(s):  
Myocardial Infarction ◽  
Body Weight ◽  
Troponin I ◽  
Curcuma Longa ◽  
Heart Weight ◽  
Control Group ◽  
Albino Rats ◽  
Creatine Kinase Mb ◽  
The Mean ◽  
Wistar Albino Rats

Background: The prevalence of myocardial infarction (MI) is increasing day by day in Bangladesh due to socioeconomic transition. Spices and herbs are important source of remedy for various diseases in human. Curcuma longa suggested to be used as an indigenous medicine for the prevention and treatment of cardiovascular disease. Objective: To observe the effect of Curcuma longa in isoproterenol induced myocardial infarction in Wistar albino rats. Methods: This experimental study was carried out in the Department of Physiology, Dhaka Medical College, Dhaka during 2015. Twenty one Wistar albino male rats, weighing 100 to 150 g (initial body weight); aged 85 to 100 days were selected for the study. After acclimatization for 14 days, the rats were divided into BC (Baseline control group), ISP-TC (Isoproterenol treated control group) and CLP-ISPT (Curcuma longa pretreated and isoproterenol treated group). Each group consisted of 7 rats. After experiment, on the 10th day, final body weight was taken, rats were sacrificed and blood samples were collected from the heart. The heart was removed and weighed. Serum creatine kinase-MB (CK-MB) level was estimated by ELISA method and Troponin I (cTnI) level by AxSYM method. The statistical analysis was done by one way ANOVA and Bonferroni test as applicable. Results: In this study, the mean percent (%) change of body weight (p<0.01), mean serum CK-MB (p<0.001) and cTnI (p<0.001) levels were significantly higher but mean heart weight was non significantly higher in ISP-TC in comparison to those of BC. Again, the mean percent (%) change of body weight (p<0.01), mean heart weight (p<0.01), mean serum CK-MB (p<0.01) and cTnI (p<0.001) levels were significantly lower in CLP-ISPT than those of ISP-TC group. Conclusion: From the results, it can be concluded that Curcuma longa may have cardioprotective effect. J Bangladesh Soc Physiol. 2018, December; 13(2): 47-53

Sign in / Sign up

Export Citation Format

Share Document