scholarly journals Protective Effect of Silymarin against Acrolein-Induced Cardiotoxicity in Mice

2012 ◽  
Vol 2012 ◽  
pp. 1-14 ◽  
Author(s):  
Elahe Taghiabadi ◽  
Mohsen Imenshahidi ◽  
Khalil Abnous ◽  
Fatemeh Mosafa ◽  
Mojtaba Sankian ◽  
...  
Keyword(s):  
Protective Effect ◽  
Caspase 3 ◽  
Troponin I ◽  
Environmental Pollutants ◽  
Protective Effects ◽  
Histopathological Changes ◽  
Cardiac Tissues ◽  
Creatine Kinase Mb ◽  
Serum Cardiac Troponin ◽  
Cytosolic Cytochrome

Reactiveα,β-unsaturated aldehydes such as acrolein (ACR) are major components of environmental pollutants and have been implicated in the neurodegenerative and cardiac diseases. In this study, the protective effect of silymarin (SN) against cardiotoxicity induced by ACR in mice was evaluated. Studies were performed on seven groups of six animals each, including vehicle-control (normal saline + 0.5% w/v methylcellulose), ACR (7.5 mg/kg/day, gavage) for 3 weeks, SN (25, 50 and 100 mg/kg/day, i.p.) plus ACR, vitamin E (Vit E, 100 IU/kg, i.p.) plus ACR, and SN (100 mg/kg, i.p.) groups. Mice received SN 7 days before ACR and daily thereafter throughout the study. Pretreatment with SN attenuated ACR-induced increased levels of malondialdehyde (MDA), serum cardiac troponin I (cTnI), and creatine kinase-MB (CK-MB), as well as histopathological changes in cardiac tissues. Moreover, SN improved glutathione (GSH) content, superoxide dismutase (SOD), and catalase (CAT) activities in heart of ACR-treated mice. Western blot analysis showed that SN pretreatment inhibited apoptosis provoked by ACR through decreasing Bax/Bcl-2 ratio, cytosolic cytochrome c content, and cleaved caspase-3 level in heart. In conclusion, SN may have protective effects against cardiotoxicity of ACR by reducing lipid peroxidation, renewing the activities of antioxidant enzymes, and preventing apoptosis.

scholarly journals Salidroside pretreatment protects against myocardial injury induced by heat stroke in mice

2019 ◽  
Vol 47 (10) ◽  
pp. 5229-5238
Author(s):  
Guo-dong Chen ◽  
Heng Fan ◽  
Jian-Hua Zhu
Keyword(s):  
Oxidative Stress ◽  
Myocardial Injury ◽  
Troponin I ◽  
Heat Stroke ◽  
Cardiac Injury ◽  
Myocardial Damage ◽  
Thiobarbituric Acid ◽  
Protective Effects ◽  
Creatine Kinase Mb ◽  
Factor Α

Objective To explore the protective effects and mechanisms of salidroside on myocardial injury induced by heat stroke (HS) in mice. Methods We pretreated mice with salidroside for 1 week and then established an HS model by exposure to 41.2°C for 1 hour. We then examined the effects of salidroside on survival. We also assessed the severity of cardiac injury by pathology, and analyzed changes in levels of myocardial injury markers, inflammatory cytokines, and oxidative stress. Results Salidroside pretreatment significantly reduced HS-induced mortality and improved thermoregulatory function. Salidroside also provided significant protection against HS-induced myocardial damage, and decreased the expression levels of cardiac troponin I, creatine kinase-MB, and lactate dehydrogenase. Moreover, salidroside attenuated HS-induced changes in the inflammation markers tumor necrosis factor-α, interleukin (IL)-6, and IL-10, and down-regulated the oxidative stress response indicated by thiobarbituric acid reactant substances, malondialdehyde, reduced glutathione, and superoxide dismutase. Conclusions Salidroside pretreatment protected against HS-induced myocardial damage, potentially via a mechanism involving anti-inflammatory and anti-oxidative effects.

Cardiac Protective Effect of Astragalus on Viral Myocarditis Mice: Comparison with Perindopril

2006 ◽  
Vol 34 (03) ◽  
pp. 493-502 ◽  
Author(s):  
Xiang-Jian Chen ◽  
Zhi-Ping Bian ◽  
Shu Lu ◽  
Jin-Dan Xu ◽  
Chun-Rong Gu ◽  
...  
Keyword(s):  
Survival Rate ◽  
Troponin I ◽  
Viral Myocarditis ◽  
Acute Stage ◽  
Protective Effects ◽  
Radix Astragalus ◽  
Beneficial Effects ◽  
Endothelin System ◽  
Serum Cardiac Troponin ◽  
Sarcoplasmic Reticulum Calcium

In clinical practice, Astragali Radix (Astragalus), the root of Astragalus membranaceus Bunge, has been widely applied to treat patients with viral diseases, including viral myocarditis in China. The present study was designed to evaluate the protective effects of Astragalus on the function of sarcoplasmic reticulum calcium ATPase (SERCA2) activity and endothelin system at acute and chronic periods of myocarditis mice induced by CVB 3 infection. Astragalus feeding (2.2 mg/kg/day) could significantly increase the survival rate, alleviate pathological alterations and serum cardiac troponin I (cTnI), as well as restore impaired SERCA activity at the acute stage. Low affinity and capacity of ETR were reversed with Astragalus after the first CVB 3 inoculation up to 7 days and after the second virus inoculation up to 150 days. In the meantime, the contents of cardiac ET-1 and ANP were reduced. Comparison the myocarditis mice treated with Perindopril (0.44 mg/kg/day), an ACE inhibitor, shows that Astragalus achieved a similar effect on survival rate, SERCA2 and ET system. These results indicated that the beneficial effects of Astragalus and Perindopril for treating viral myocarditis might be partly mediated by preserving the functions of SERCA 2 activity and ET system.

scholarly journals Myelosuppression and Nephrotoxicity Induced by Cisplatin in Female Rats: The Role of Berberine Nanoparticles

2018 ◽  
Vol 11 ◽  
pp. 2218-2235
Author(s):  
Nema Abdelhameed Mohamed
Keyword(s):  
Uric Acid ◽  
Protective Effect ◽  
Total Protein ◽  
Caspase 3 ◽  
Treated Group ◽  
Female Rats ◽  
Histopathological Changes ◽  
Cisplatin Nephrotoxicity ◽  
Anti Oxidant ◽  
Clinical Interest

Cisplatin (CDDP) is one of the most effective antineoplastic drugs used in chemotherapy, strategies to protect tissues against cisplatin nephrotoxicity is a clinical interest. This study aimed to evaluate the possible protective effect of berberine nanoparticles (BBR-NPs) against cisplatin-induced nephrotoxicity in female rats. Intraperitoneal (IP) injection of cisplatin (8 mg/kg) caused significant decrease in RBC, Hb, Hct, WBC and platelets. Also, cisplatin caused disturbances in kidney function as documented by a significant increase in urea, uric acid, creatinine and MDA, with significant decreases in the total protein, albumin, GSH and total thiol.TNF- , caspase-3, IL-2, IL-6 and IL-1were increased in cisplatin treated group. The histopathological changes in cisplatin group include degeneration and desquamation of tubular epithelial cells, hyaline cast formation, inflammatory cell infiltration and tubular dilation. Oral administration of BBR-NPs at a dose 1mg/kg/day for 30 days after cisplatin produced significant decrease in the levels of urea, uric acid, creatinine, TNF- and caspase-3 as well as kidney MDA with a marked increase in total protein, albumin, GSH, total thiol and repairing the histopathological changes. Scanning microscope of RBC showed the protective effect of BBR-NPs against the different changes induced by CDDP. The present study suggested that the anti-oxidant and anti-inflammatory effects of BBR-NPs may prevent CDDP-induced nephrotoxicity via decreasing the oxidative stress, inhibiting the inflammation and apoptosis.

scholarly journals Supplementation of Lipoic Acid, Zinc and Clopidogrel Reduces Mortality Rate and Incidence of Ventricular Arrhythmia in Experimental Myocardial Infarction

2021 ◽  
Vol 12 ◽  
Author(s):  
Enas Abdel-Hady ◽  
Fatma Mohamed ◽  
Mona Ahmed ◽  
Mohamed Abdel-Salam ◽  
Mahmoud Ayobe
Keyword(s):  
Myocardial Infarction ◽  
Mortality Rate ◽  
Lipoic Acid ◽  
Plasma Levels ◽  
Troponin I ◽  
Heart Diseases ◽  
Hypolipidemic Effect ◽  
Protective Effects ◽  
Adrenergic Stimulation ◽  
Creatine Kinase Mb

Despite the significant advances in management of coronary heart diseases, myocardial infarction (MI) is still associated with a high mortality rate. The present study was planned to investigate the possible protective effects of the anti-oxidants lipoic acid and zinc sulfate as well as the anti-platelet clopidogrel on cardiac dysfunction in experimental isoproterenol (ISO)-induced MI, aiming at achieving useful means for protection and therapy against MI. Wistar rats of both sexes were allocated into five groups: control, untreated MI and MI pre-treated with lipoic acid, zinc, or clopidogrel. All rats were subjected to ECG recording and measurement of plasma levels of troponin I, creatine kinase-MB (CK-MB) unit, triglycerides and total cholesterol. The hearts were isolated and studied on Langendorff preparation for assessment of intrinsic cardiac activities. The results revealed that the percent mortality was markedly reduced upon pre-treatment and the total arrhythmia was also decreased except for the zinc pre-treated rats. The ST-segment elevation was significantly reduced and the plasma levels of CK-MB were only decreased in lipoic acid and clopidogrel pre-treated rats with variable hypolipidemic effect. Hearts of clopidogrel pre-treated rats showed augmented inotropic activity both basal and in response to β-adrenergic stimulation. While zinc pre-treated hearts revealed improved rate of contraction and increased myocardial flow rate. Overall, these results indicate that lipoic acid, zinc and clopidogrel were variably effective in modifying the ISO-induced MI insults and offered partial protection against experimental myocardial damage.

The impact of high fructose on cardiovascular system

2015 ◽  
Vol 35 (2) ◽  
pp. 194-204 ◽  
Author(s):  
M Saygin ◽  
H Asci ◽  
FN Cankara ◽  
D Bayram ◽  
S Yesilot ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Uric Acid ◽  
Structural Changes ◽  
Pathological Examination ◽  
Protective Effects ◽  
Corn Syrup ◽  
Cardiac Tissues ◽  
High Fructose ◽  
Creatine Kinase Mb ◽  
The Impact

The aim of this study was to evaluate the role of α-lipoic acid (α-LA) on oxidative damage and inflammation that occur in endothelium of aorta and heart while constant consumption of high-fructose corn syrup (HFCS). The rats were randomly divided into three groups with each group containing eight rats. The groups include HFCS, HFCS + α-LA treatment, and control. HFCS was given to the rats at a ratio of 30% of F30 corn syrup in drinking water for 10 weeks. α-LA treatment was given to the rats at a dose of 100 mg/kg/day orally for the last 6 weeks. At the end of the experiment, the rats were killed by cervical dislocation. The blood samples were collected for biochemical studies, and the aortic and cardiac tissues were collected for evaluation of oxidant–antioxidant system, tissue bath, and pathological examination. HFCS had increased the levels of malondialdehyde, creatine kinase MB, lactate dehydrogenase, and uric acid and showed significant structural changes in the heart of the rats by histopathology. Those changes were improved by α-LA treatment as it was found in this treatment group. Immunohistochemical expressions of tumor necrosis factor α and inducible nitric oxide synthase were increased in HFCS group, and these receptor levels were decreased by α-LA treatment. All the tissue bath studies supported these findings. Chronic consumption of HFCS caused several problems like cardiac and endothelial injury of aorta by hyperuricemia and induced oxidative stress and inflammation. α-LA treatment reduced uric acid levels, oxidative stress, and corrected vascular responses. α-LA can be added to cardiac drugs due to its cardiovascular protective effects against the cardiovascular diseases.

scholarly journals A Strategy for Optimizing the Combination of Active Components Based on Chinese Medicinal Formula Sheng-Mai-San for Myocardial Ischemia

2018 ◽  
Vol 45 (4) ◽  
pp. 1455-1471 ◽  
Author(s):  
Fang Li ◽  
Xiao-Xue Fan ◽  
Chun Chu ◽  
Yu Zhang ◽  
Jun-Ping Kou ◽  
...  
Keyword(s):  
Myocardial Ischemia ◽  
Protective Effect ◽  
Infarct Size ◽  
Troponin I ◽  
Serum Lactate Dehydrogenase ◽  
Chinese Drug ◽  
Myocardial Infarct Size ◽  
Effective Components ◽  
Creatine Kinase Mb ◽  
Further Development

Background/Aims: Traditional Chinese medicine (TCM) has been used in clinical practice for thousands of years and has accumulated considerable knowledge concerning the in vivo efficacy of targeting complicated diseases. TCM formulae are a mixture of hundreds of chemical components with multiple potential targets, essentially acting as a combination therapy of multi-component drugs. However, the obscure substances and the unclear molecular mechanisms are obstacles to their further development and internationalization. Therefore, it is necessary to develop new modern drugs based on the combination of effective components in TCM with exact clinical efficacy. In present study, we aimed to detect optimal ratio of the combination of effective components based on Sheng-Mai-San for myocardial ischemia. Methods: On the basis of preliminary studies and references of relevant literature about Sheng-Mai-San for myocardial ischemia, we chose three representative components (ginsenoside Rb1 (G), ruscogenin (R) and schisandrin (S)) for the optimization design studies. First, the proper proportion of the combination was explored in different myocardial ischemia mice induced by isoproterenol and pituitrin based on orthogonal design. Then, the different proportion combinations were further optimized through uniform design in a multi-model and multi-index mode. Finally, the protective effect of combination was verified in three models of myocardial ischemia injured by ischemia/reperfusion, chronic intermittent hypoxia and acute infarction. Results: The optimized combination GRS (G: 6 mg/kg, R: 0.75 mg/kg, S: 6 mg/kg) obtained by experimental screening exhibited a significant protective effect on myocardial ischemia injury, as evidenced by decreased myocardium infarct size, ameliorated histological features, decreased myocardial myeloperoxidase (MPO) and malondiadehyde (MDA), calcium overload, and decreased serum lactate dehydrogenase (LDH), creatine kinase MB isoenzyme (CK-MB), cardiac troponin I (cTn-I) activity. In addition, the interactions of three components in combination GRS were also investigated. The combination, compared to G, R and S, could significantly reduce the concentration of serum CK-MB and cTn-I, and decrease myocardial infarct size, which demonstrated the advantages of this combination for myocardial ischemia. Conclusion: Our results demonstrated that the optimized combination GRS could exert significant cardioprotection against myocardial ischemia injury with similar effect compared to Sheng Mai preparations, which might provide some pharmacological evidences for further development of new modern Chinese drug for cardiovascular diseases basing on traditional Chinese formula with affirmative therapeutic effect.

scholarly journals Cardioprotective potential of polyphenols rich Thraatchathi Chooranam against isoproterenol induced myocardial necrosis in experimental rats

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Ramakrishnan Ganapathy ◽  
Anita Ramachandran ◽  
Sushmitha Basavapattana Shivalingaiah ◽  
Muhammed Bishir ◽  
Saravanan Bhojaraj ◽  
...  
Keyword(s):  
Troponin I ◽  
Histopathological Examination ◽  
Antioxidant Properties ◽  
Membrane Integrity ◽  
Myocardial Necrosis ◽  
Experimental Period ◽  
High Dose ◽  
Dependent Manner ◽  
Protective Effects ◽  
Cardiac Tissues

Abstract Background The present study establishes the cardioprotective role of Thraatchathi Chooranam (TC), a polyherbal traditional Siddha medicine, in terms of membrane stabilizing and antioxidant properties in isoproterenol (ISO) induced myocardial necrosis model in rats. Methods Animals were divided into six groups (n = 6), normal (received vehicle 0.5% CMC, p.o.), ISO control (received 0.5% CMC + ISO 120 mg/kg, b.w. s.c. twice at an interval of 48 h), standard control (received Vit-E 100 mg/kg, p.o.) + ISO, TC low and high dose (50 and 100 mg/kg p.o., respectively) + ISO, and drug control (received TC at 100 mg/kg, p.o.). At the end of experimental period, blood samples collected and plasma cardiac troponin-I (CTn-I) was measured by ELISA. Cardiac tissues were isolated, levels of membrane stabilizing enzymes, antioxidants and inflammatory markers were estimated. Gene expression of Bax, Bcl2, Caspase 3, HIF-α, TNF-α, iNOS, TRX1 and TrxR were performed by RT-PCR. Histopathological studies on cardiac tissues were conducted using hematoxylin and eosin (H&E) stain. Statistical analyses were performed by one-way ANOVA followed by Tukey’s multiple comparison as post-hoc test. Results Administration of ISO resulted in a significant increase in plasma CTn-I, decrease in superoxide dismutase, glutathione and glutathione peroxidase; it also significantly altered membrane stabilizing enzymes like Na+/K+-ATPase, Mg2+-ATPase Ca2+-ATPase and Cathepsin D. Pretreatment with TC (50 mg/kg and 100 mg/kg) decreased CTn-I, and improved membrane stabilizing and endogenous antioxidant enzymes and decreased cathespin D level in a dose dependent manner. Histopathological examination revealed that TC improves cellular membrane integrity and decreases inflammatory cell infiltration and necrotic death. Conclusion The present study provided a strong evidence on the protective effects of TC against ISO-induced myocardial necrosis in rats.

Protective effects of olmesartan and l-carnitine on doxorubicin-induced cardiotoxicity in rats

2020 ◽  
Vol 98 (4) ◽  
pp. 183-193 ◽  
Author(s):  
Malek M. Aziz ◽  
Mai A. Abd El Fattah ◽  
Kawkab A. Ahmed ◽  
Helmy M. Sayed
Keyword(s):  
Transforming Growth Factor Beta ◽  
Troponin I ◽  
Transforming Growth Factor ◽  
Antineoplastic Agent ◽  
The Other ◽  
Control Group ◽  
Albino Rats ◽  
Protective Effects ◽  
Group I ◽  
Creatine Kinase Mb

Doxorubicin (DOX), an anthracycline antibiotic, is an important antineoplastic agent due to its high antitumor efficacy in hematological as well as in solid malignancies. The clinical use of DOX is limited due to its cardiotoxic effects. The present study aimed to investigate the possible protective effect of olmesartan (Olm), l-carnitine (L-CA), and their combination in cardiotoxicity induced by DOX in rats. Male albino rats were randomly divided into seven experimental groups (n = 8): group I: normal control, group II: L-CA, group III: Olm, group IV: DOX. The other three groups were treated with Olm (10 mg/kg), L-CA (300 mg/kg), and their combination for 2 weeks after induction of cardiotoxicity by a single dose of DOX (20 mg/kg). In the results, DOX showed a significant elevation in serum troponin I, creatine kinase-MB (CK-MB), and lactate dehydrogenase (LDH) together with increased inflammation manifested by the rise of tumor necrosis factor-alpha (TNF-α), intercellular adhesion molecules-1 (ICAM-1), interleukin IL-1β (IL-1β), myeloperoxidase (MPO), nuclear factor-kappa B (NF-κB), and transforming growth factor beta (TGF-β) in cardiac tissues as well as DOX-induced oxidative stress by increasing in malondialdehyde (MDA) and decreasing in superoxide dismutase (SOD) and glutathione (GSH) in heart tissues. In addition, caspase-3 activity was boosted as indication of increased apoptosis. On the other hand, administration of L-CA and Olm attenuated the DOX-evoked disturbances in the abovementioned parameters. In addition, DOX exhibited echocardiographic changes and severe histopathological changes, which were significantly reversed by L-CA and Olm treatment. In conclusion, the present study data confirm the protective role of L-CA and Olm in DOX-induced cardiotoxicity, which may be related to its antioxidant, antiinflammatory, and antiapoptotic agents.

scholarly journals Protective Effects of Total Saponins of Panax Notoginseng on Steroid-Induced Avascular Necrosis of the Femoral Head In Vivo and In Vitro

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Heng-feng Yuan ◽  
Jian-feng Pan ◽  
Shuo Li ◽  
Chang-an Guo ◽  
Shu-hao Liu ◽  
...  
Keyword(s):  
Femoral Head ◽  
Protective Effect ◽  
Avascular Necrosis ◽  
Caspase 3 ◽  
In Vitro Study ◽  
Panax Notoginseng ◽  
Protective Effects ◽  
Model Group

This research was designed to investigate the protective effects of TSPN on steroid-induced avascular necrosis of the femoral head (ANFH) and the likely mechanisms of those effects. As an in vivo study, TSPN was shown to be protective against steroid-induced ANFH due to the upregulation of VEGF-A. Furthermore, TSPN attenuated the apoptosis of osteocytes and reduced the expression of Caspase-3 relative to the model group. As an in vitro study, TSPN exerted a concentration-dependent protective effect against apoptosis in MC3T3-E1 cells. Moreover, TSPN (at a dose of 100 μg/mL) significantly reversed the dexamethasone-induced augmentation of Caspase-3 expression and activity. Therefore, our study demonstrated that TSPN had a protective effect against steroid-induced ANFH that was related to the upregulation of VEGF-A and the inhibition of apoptosis and Caspase-3 activation.

scholarly journals Protective Effect of Kolaviron on Cyclophosphamide-Induced Cardiac Toxicity in Rats

2018 ◽  
Vol 23 ◽  
pp. 215658721875764 ◽  
Author(s):  
Joseph Gbenga Omole ◽  
Oladele Abiodun Ayoka ◽  
Quadri Kunle Alabi ◽  
Modinat Adebukola Adefisayo ◽  
Muritala Abiola Asafa ◽  
...  
Keyword(s):  
Body Weight ◽  
Protective Effect ◽  
Food Consumption ◽  
Troponin I ◽  
Cardiac Toxicity ◽  
Heart Weight ◽  
Garcinia Kola ◽  
Cardiac Tissues ◽  
Therapeutic Uses ◽  
Group I

Background. Cyclophosphamide (CP) is a nitrogen mustard alkylating drug used for the treatment of chronic and acute malignant lymphomas, myeloma, leukemia, neuroblastoma, adenocarcinoma, retinoblastoma, breast carcinoma, and immunosuppressive therapy. Despite its vast therapeutic uses, it is known to cause severe cardiac toxicity. Kolaviron (KV), a Garcinia kola seed extract containing a mixture of flavonoids, is reputed for its antioxidant and membrane stabilizing properties. Objective. This study investigated the protective effect of KV on CP-induced cardiotoxicity in rats. Methods. Thirty rats were used, and they were divided into 6 groups of 5 rats each. Group I received 2 mL/kg propylene glycol orally for 14 days; group II received CP (50 mg/kg/d, intraperitoneally [i.p.]) for 3 days; groups III and IV received 200 and 400 mg/kg/d KV, respectively, orally for 14 days and groups V and VI were pretreated with 200 and 400 mg/kg/d KV, respectively, orally for 14 days followed by CP (50 mg/kg/d, i.p.) for 3 days. Results. CP treatment resulted in a significantly lower food consumption and body weight in rats. The lactate dehydrogenase and creatine kinase enzymes in cardiac tissues of rats treated with CP were significantly higher. In cardiac tissues, 3-day doses of CP resulted in significantly higher heart weight, cardiac troponin I, myeloperoxidase, malondialdehyde, hydrogen peroxide and lower superoxide dismutase, catalase, glutathione peroxidase activities, and reduced glutathione levels. Histological examination of cardiac tissues showed sign of necrosis of myocardium after CP treatment. However, administration of KV at 200 and 400 mg/kg for 14 days prior to CP treatment, increase food consumption, body weight, and attenuates the biochemical and histological changes induced by CP. Conclusions. These results revealed that KV attenuates CP-induced cardiotoxicity by inhibiting oxidative stress and preserving the activity of antioxidant enzymes.

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