CYBERMED LIFE - ORGANIC  & NATURAL LIVING

Myocardial Infarction

Myocardial infarction (MI), commonly known as a heart attack, occurs when blood flow decreases or stops to a part of the heart, causing damage to the heart muscle. The most common symptom is chest pain or discomfort which may travel into the shoulder, arm, back, neck, or jaw. Often it occurs in the center or left side of the chest and lasts for more than a few minutes. The discomfort may occasionally feel like heartburn. Other symptoms may include shortness of breath, nausea, feeling faint, a cold sweat, or feeling tired. About 30% of people have atypical symptoms. Women more often have atypical symptoms than men. Among those over 75 years old, about 5% have had an MI with little or no history of symptoms. An MI may cause heart failure, an irregular heartbeat, cardiogenic shock, or cardiac arrest.

Most MIs occur due to coronary artery disease. Risk factors include high blood pressure, smoking, diabetes, lack of exercise, obesity, high blood cholesterol, poor diet, and excessive alcohol intake, among others. The complete blockage of a coronary artery caused by a rupture of an atherosclerotic plaque is usually the underlying mechanism of an MI. MIs are less commonly caused by coronary artery spasms, which may be due to cocaine, significant emotional stress, and extreme cold, among others. A number of tests are useful to help with diagnosis, including electrocardiograms (ECGs), blood tests, and coronary angiography. An ECG, which is a recording of the heart's electrical activity, may confirm an ST elevation MI (STEMI) if ST elevation is present. Commonly used blood tests include troponin and less often creatine kinase MB.

Treatment of an MI is time-critical. Aspirin is an appropriate immediate treatment for a suspected MI. Nitroglycerin or opioids may be used to help with chest pain; however, they do not improve overall outcomes. Supplemental oxygen is recommended in those with low oxygen levels or shortness of breath. In a STEMI, treatments attempt to restore blood flow to the heart, and include percutaneous coronary intervention (PCI), where the arteries are pushed open and may be stented, or thrombolysis, where the blockage is removed using medications. People who have a non-ST elevation myocardial infarction (NSTEMI) are often managed with the blood thinner heparin, with the additional use of PCI in those at high risk. In people with blockages of multiple coronary arteries and diabetes, coronary artery bypass surgery (CABG) may be recommended rather than angioplasty. After an MI, lifestyle modifications, along with long term treatment with aspirin, beta blockers, and statins, are typically recommended.

Worldwide, about 15.9 million myocardial infarctions occurred in 2015. More than 3 million people had an ST elevation MI and more than 4 million had an NSTEMI. STEMIs occur about twice as often in men as women. About one million people have an MI each year in the United States. In the developed world the risk of death in those who have had an STEMI is about 10%. Rates of MI for a given age have decreased globally between 1990 and 2010. In 2011, AMI was one of the top five most expensive conditions during inpatient hospitalizations in the US, with a cost of about $11.5 billion for 612,000 hospital stays.

  • A Case of Sudden Infant Death Due to Incomplete Kawasaki Disease.

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    Abstract Title:

    A Case of Sudden Infant Death Due to Incomplete Kawasaki Disease.

    Abstract Source:

    J Forensic Sci. 2016 Jan ;61 Suppl 1:S259-64. Epub 2015 Sep 8. PMID: 26347043

    Abstract Author(s):

    Daisuke Yajima, Keiko Shimizu, Kumiko Oka, Masaru Asari, Chikatoshi Maseda, Katsuhiro Okuda, Hiroshi Shiono, Seiji Ohtani, Katsuhiro Ogawa

    Article Affiliation:

    Daisuke Yajima

    Abstract:

    Although Kawasaki disease (KD) is a self-limiting disease, it may cause sudden cardiac death. Diagnosis of KD is principally based on clinical signs; however, some infant cases do not meet the criteria. Such cases are identified as incomplete KD. The sudden death risk in incomplete KD cases is similar to conventional KD. In our 5-month-old case, he had been admitted to a hospital for a fever and suppuration at the site of Bacille de Calmette et Guerin (BCG) vaccination. However, after discharge from the hospital, his C-reactive protein (CRP) levels declined, he got indisposed and died suddenly. A medico-legal autopsy revealed myocarditis, coronaritis, platelet-aggregated emboli in coronary arteries, and myocardial degeneration, suggesting that the fatal myocardial infarction was due to thrombus emboli in the coronary arteries. Forensic pathologists therefore should pay attention to the cardiac pathology originated from incomplete KD as a potential cause in cases of sudden infant death.

  • A Mediterranean diet and risk of myocardial infarction, heart failure and stroke: A population-based cohort study.

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    Abstract Title:

    A Mediterranean diet and risk of myocardial infarction, heart failure and stroke: A population-based cohort study.

    Abstract Source:

    Atherosclerosis. 2015 Sep 3 ;243(1):93-98. Epub 2015 Sep 3. PMID: 26363438

    Abstract Author(s):

    Thanasis G Tektonidis, Agneta Åkesson, Bruna Gigante, Alicja Wolk, Susanna C Larsson

    Article Affiliation:

    Thanasis G Tektonidis

    Abstract:

    BACKGROUND AND AIMS:The Mediterranean diet, which is palatable and easily achievable, has been associated with lower all-cause and cardiovascular disease (CVD) incidence and mortality. Data on heart failure (HF) and stroke types are lacking. The aim was to examine a Mediterranean diet in relation to incidence of myocardial infarction (MI), HF and stroke types in a Swedish prospective cohort.

    METHODS:In a population-based cohort of 32,921 women, diet was assessed through a self-administered questionnaire. The modified Mediterranean diet (mMED) score was created based on high consumption of vegetables, fruits, legumes, nuts, whole grains, fermented dairy products, fish and monounsaturated fat, moderate intakes of alcohol and low consumption of red meat, on a 0-8 scale. Relative risks (RR) with 95% confidence intervals (CI), adjusted for potential confounders, were estimated by Cox proportional hazards regression models.

    RESULTS:During 10 y of follow-up (1998-2008), 1109 MIs, 1648 HFs, 1270 ischemic strokes and 262 total hemorrhagic strokes were ascertained. A high adherence to the mMED score (6-8), compared to low, was associated with a lower risk of MI (RR: 0.74, 95% CI: 0.61-0.90, p = 0.003), HF (RR: 0.79, 95% CI: 0.68-0.93, p = 0.004) and ischemic stroke (RR: 0.78, 95% CI: 0.65-0.93, p = 0.007), but not hemorrhagic stroke (RR: 0.88, 95% CI: 0.61-1.29, p = 0.53).

    CONCLUSIONS:Better adherence to a Mediterranean diet was associated with lower risk of MI, HF and ischemic stroke. The Mediterranean diet is most likely to be beneficial in primary prevention of all major types of atherosclerosis-related CVD.

  • Cardiac pre-differentiation of human mesenchymal stem cells by electrostimulation.

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    Abstract Title:

    Cardiac pre-differentiation of human mesenchymal stem cells by electrostimulation.

    Abstract Source:

    Front Biosci. 2009;14:2996-3002. Epub 2009 Jan 1. PMID: 19273251

    Abstract Author(s):

    Jorge A Genovese, Cristiano Spadaccio, Emmanuel Chachques, Olivier Schussler, Alain Carpentier, Juan C Chachques, Amit N Patel

    Article Affiliation:

    Heart, Lung and Esophageal Surgery Institute, University of Pittsburgh Medical Center, Pittsburgh, PA, USA. This email address is being protected from spambots. You need JavaScript enabled to view it.

    Abstract:

    Myocardial repair using stem-cell therapy has become a promising therapeutic tool. However, many questions concerning a precise functional integration of injected cells remain unanswered. The use of cardiac pre-committed cells may improve integration, as these cells may complete their differentiation in the myocardium reducing fibrosis and restoring muscle function. We have previously demonstrated that electrostimulation (ES) induces cardiomyocyte pre-commitment of fibroblasts in vitro and is an effective alternative to cytokine-induced differentiation. In this study, we evaluated the effects of long term electrostimulation on human mesenchymal stem cells (hMSCs). ES induced both morphological and biochemical changes in hMSCs resulting in a shift toward a striated muscle cell phenotype expressing cardiac specific markers. This partially differentiated phenotype might allow a gradual, ongoing differentiation within the cardiac environment, providing time for both myocardial regeneration and electro-mechanical integration, and convey potential advantages in clinical applications.

  • Effect of potentially modifiable risk factors associated with myocardial infarction in 52 countries in a case-control study based on the INTERHEART study

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    Abstract Title:

    [Effect of potentially modifiable risk factors associated with myocardial infarction in 52 countries in a case-control study based on the INTERHEART study].

    Abstract Source:

    Orv Hetil. 2006 Apr 16;147(15):675-86. PMID: 16734179

    Abstract Author(s):

    Iván Gyárfás, Mátyás Keltai, Yusuf Salim

    Article Affiliation:

    Gottsegen György Országos Kardiológiai Intézet.

    Abstract:

    An international, standardised case-control study was established to assess the importance of risk factors for coronary heart disease worldwide. From 52 countries representing every inhabited continent 15152 cases and 14820 controls were enrolled. The relation of smoking, history of hypertension and/or diabetes, waist/hip ratio, dietary patterns, physical activity, consumption of alcohol, blood apolipoproteins and psychosocial factors to myocardial infarction was reported. Odds ratios and their 99% confidence limits for the association of risk factors to acute myocardial infarction and their population attributable risks were calculated. Smoking (odds ratio 2.87 for current vs never, population attributable risk 35.7% for current and former smoker vs never), raised apolipoprotein B / apolipoprotein A1 ratio (3.25 for top vs lowest quintile, population attributable risk 49.2 for top four quintiles vs lowest quintile), history of hypertension (1.91, 17.9%), diabetes (2.37, 9.9%), abdominal obesity (1.12 for top vs lowest tertile and 1.62 for middle vs lowest tertile, 20.1% for top two tertiles vs lowest tertile), psychosocial factors (2.67, 32.5), daily consumption of fruits and vegetables (0.70, 13.7% for lack of daily consumption), regular alcohol consumption (0.91, 6.7%), and regular physical activity (0.86, 12.2%) were all significantly related to acute myocardial infarction (p<0.0001 for all risk factors, and p = 0.03 for alcohol). These associations were noted in men and women, old and young and in all regions of the world. Collectively these nine risk factors accounted for 90% of the population attributable risk in men and 94% in women. This finding suggests that approaches to prevention can be based on similar principles worldwide.

  • Effects of geranium aroma on anxiety among patients with acute myocardial infarction: A triple-blind randomized clinical trial.

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    Abstract Title:

    Effects of geranium aroma on anxiety among patients with acute myocardial infarction: A triple-blind randomized clinical trial.

    Abstract Source:

    Complement Ther Clin Pract. 2017 Nov ;29:201-206. Epub 2017 Oct 16. PMID: 29122262

    Abstract Author(s):

    Razieh Shirzadegan, Mohammad Gholami, Shirin Hasanvand, Mehdi Birjandi, Afsaneh Beiranvand

    Article Affiliation:

    Razieh Shirzadegan

    Abstract:

    OBJECTIVE:The is study examined the effects of geranium aroma on anxiety among patients with AMI.

    METHODS:This randomized, triple-blind, placebo-controlled clinical trial recruited 80 patients with AMI through convenience sampling. The patients were allocated to geranium and placebo groups (n = 40 each) using stratified block randomization. On the second day of admission three drops of geranium essential oil and placebo were poured on absorbing patches attached inside the oxygen masks of the geranium and placebo groups, respectively. The patients were asked to inhale the aroma for 20 min a day on two consecutive days.

    RESULTS:all stages of the intervention, the two groups had a significant difference in anxiety scores, i.e. geranium aroma caused significantly greater reductions in the anxiety scores (P < 0.001).

    CONCLUSION:Inhalation aromatherapy with geranium essential oil is recommended as an easy-to-use, intervention to reduce anxiety among patients with AMI.

  • Effects of histidine and vitamin C on isoproterenol-induced acute myocardial infarction in rats. 📎

    Abstract Title:

    Effects of histidine and vitamin C on isoproterenol-induced acute myocardial infarction in rats.

    Abstract Source:

    Vet Res Forum. 2016 ;7(1):47-54. Epub 2016 Mar 15. PMID: 27226887

    Abstract Author(s):

    Masoumeh Moradi-Arzeloo, Amir Abbas Farshid, Esmaeal Tamaddonfard, Siamak Asri-Rezaei

    Article Affiliation:

    Masoumeh Moradi-Arzeloo

    Abstract:

    In the present study, we investigated the effects of histidine and vitamin C (alone or in combination) treatments against isoproterenol (aβ-adrenergic receptor agonist)-induced acute myocardial infarction in rats. We used propranolol (a β-adrenergic receptor blocker) to compare the results. Rats were given intraperitoneal injections of histidine (40 mg kg(-1)) and vitamin C (40 mg kg(-1)) alone and combined daily for 21 days. Propranolol (10 mg kg(-1)) was orally administered daily for 10 days (from day 11 to day 21). Myocardial infarction was induced by subcutaneous injections of 150 mg kg(-1) of isoproterenol at an interval of 24 hr on days 20 and 21. Blood and tissue samples were taken for histopathological and biochemicalevaluations following electrocardiography recording on day 21. Isoproterenol elevated ST segment, increased heart weight, heart rate, serum activities of aspartate transaminase, lactate dehydrogenase, creatine kinase-MB and heart tissue content of malondialdehyde, and decreased R wave amplitude andsuperoxide dismutase and catalase activities of heart tissue. Necrosis, edema and inflammatory cells infiltration were observed in myocardial tissue sections. Our results indicated that histidine and vitamin C alone, and especially in combination prevent isoproterenol-induced cardiotoxicity and havesimilar protective effects with propranolol. Cardioprotective effects of histidine and vitamin C may be associated with their ability to reduce free radical-induced toxic effects.

  • Impact of adherence to a Mediterranean Diet pattern on patients with first acute myocardial infarction.

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    Abstract Title:

    Impact of adherence to a Mediterranean Diet pattern on patients with first acute myocardial infarction.

    Abstract Source:

    Nutr Metab Cardiovasc Dis. 2019 Dec 6. Epub 2019 Dec 6. PMID: 32007333

    Abstract Author(s):

    Marco Magnoni, Paola Scarano, Vittoria Vergani, Martina Berteotti, Guglielmo Gallone, Nicole Cristell, Attilio Maseri, Domenico Cianflone

    Article Affiliation:

    Marco Magnoni

    Abstract:

    BACKGROUND AND AIMS:The Mediterranean diet (MD) affects the risk of myocardial infarction and long-term prognosis after a coronary event. Limited data are available regarding the influence of MD on short-term prognosis. We assessed the impact of the MD adherence on in-hospital and short-term outcome in patients with first ST-elevation Myocardial Infarction (STEMI).

    METHODS AND RESULTS:As many as 533 European patients with STEMI and no previous history of coronary artery disease were included in this analysis. Previous dietary habits of each patient were collected with a food frequency questionnaire from which we calculated the FAMI Mediterranean Diet Score (FAMI MD Score), according to the MD adherence. A blood sample was drawn to each patient within 6 h of symptoms onset. Levels of high-sensitivity C-Reactive Protein (hsCRP), Interleukin-6 (IL-6) were measured. Clinical outcome at 180 days and myocardial reperfusion were assessed. Patients with higher FAMI MD Score had lower levels of hsCRP; there were no differences between IL-6 level among FAMI MD Score quintiles. There were no associations between adherence to MD and 180-day adverse events. Lower FAMI MD Score was associated with a higher risk of ineffective myocardial reperfusion after thrombolysis or percutaneous coronary intervention. Similar results were observed for daily consumption of ≥4 portions of fruit and vegetable.

    CONCLUSIONS:A positive effect of the Mediterranean diet, and fruit and vegetable intake was observed on hsCRP and the occurrence of effective myocardial reperfusion. These findings confirm the favorable impact of Mediterranean diet adherence not only in primary but also in secondary prevention.

  • Mediterranean diet and all-causes mortality after myocardial infarction: results from the GISSI-Prevenzione trial📎

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    Abstract Title:

    Mediterranean diet and all-causes mortality after myocardial infarction: results from the GISSI-Prevenzione trial.

    Abstract Source:

    Eur J Clin Nutr. 2003 Apr;57(4):604-11. PMID: 12700623

    Abstract Author(s):

    F Barzi, M Woodward, R M Marfisi, L Tavazzi, F Valagussa, R Marchioli,

    Abstract:

    OBJECTIVE: To ascertain whether simple dietary advice to increase the consumption of Mediterranean foods, given in a clinical setting, leads to reduced mortality after a myocardial infarction. DESIGN: Data were used from the GISSI-Prevenzione clinical trial, analysed as a cohort study with adjustment for treatment allocation.

    SETTING: A total of 172 centres in Italy. SUBJECTS: A total of 11323 men and women with myocardial infarction. All subjects received advice to increase their consumption of fish, fruit, raw and cooked vegetables and olive oil.

    MEASUREMENTS: The intakes of the five foods were assessed at baseline, 6, 18 and 42 months. Associations of food intakes, a combined dietary score, and the risk of death over 6.5 y were estimated adjusting for several non-dietary variables, using pooled logistic regression.

    RESULTS: Subjects generally improved their diet according to the advice given. All foods were associated with a significant reduction in risk of death. Compared with people in the worst dietary score quarter, the odds ratio for those in the best score quarter was 0.51 (95% CI 0.44-0.59). A good diet had a protective effect in sub-groups defined by age, sex, smoking, randomized treatment and concomitant drug therapy.

    CONCLUSIONS: Myocardial infarction patients can respond positively to simple dietary advice, and this can be expected to lead to a substantial reduction in the risk of early death. Regardless of any drug treatment prescribed, clinicians should routinely advise patients with myocardial infarction to increase their frequency of consumption of Mediterranean foods.

  • Mediterranean diet and reduction in the risk of a first acute myocardial infarction: an operational healthy dietary score.

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    Abstract Title:

    Mediterranean diet and reduction in the risk of a first acute myocardial infarction: an operational healthy dietary score.

    Abstract Source:

    Antiviral Res. 2005 Apr;66(1):9-12. PMID: 12242583

    Abstract Author(s):

    Miguel A Martínez-González, Elena Fernández-Jarne, Manuel Serrano-Martínez, Amelia Marti, J Alfredo Martinez, José M Martín-Moreno

    Abstract:

    BACKGROUND: Although an important secondary prevention trial reported an impressive protection by a Mediterranean dietary pattern on reinfarction and cardiovascular death, scarce direct epidemiologic evidence is currently available regarding the role of the Mediterranean diet in the aetiology of coronary heart disease.

    AIMS: The aim of the study was to quantify the risk reduction of incident myocardial infarction provided by a Mediterranean dietary pattern.

    METHODS: We included 342 subjects (171 patients who suffered their first acute myocardial infarction and 171 matched controls) in a case-control study. A validated semi-quantitative food frequency questionnaire (136 items) was used. We defined an a priori Mediterranean dietary pattern. We assessed six food items that we considered protective: 1) olive oil, 2) fiber, 3) fruits, 4)vegetables, 5) fish and 6) alcohol. For each of these six dietary factors, we calculated the distribution according to quintiles within the study and assigned each participant a score of 1 to 5 corresponding to the quintile of intake, with 1 representing the lowest and 5 representing the highest quintile. We also estimated the quintiles of two other elements assumed to be associated with a higher risk: 7) meat/meat products and 8) some items with high glycaemic load (white bread, pasta and rice). For these two elements we inversely ranked the score, with 1 representing the highest and 5 representing the lowest quintile. Finally, we summed up the eight quintile values for each participant.A second score ( post hoc pattern) was built using only a single cut-off point for these eight elements. The cut-off points for each element in this post hoc pattern were decided according to the dose-response relationships between the consumption of each food item and the risk of myocardial infarction observed in the analyses that used quintiles of each food item.

    RESULTS: For both patterns, we found that the higher the score, the lower the odds ratio of myocardial infarction. A significant linear trend was apparent after adjustment for the main cardiovascular risk factors. For each additional point in the a priori Mediterranean pattern (observed range: 9-38) the odds ratio (95 % confidence intervals) was 0.92 (0.86-0.98). This estimate was 0.55 (0.42-0.73) when we used the post hoc pattern (range: 0-8).

    CONCLUSIONS: Our data support the hypothesis that a Mediterranean diet (that emphasizes olive oil, fiber, fruits, vegetables, fish and alcohol and reduces meat/meat products) can be an effective measure for reducing the risk of myocardial infarction. However, our results support the exclusion of refined cereals with a high glycaemic load as healthy elements of this pattern.

  • Modified Mediterranean diet and survival after myocardial infarction: the EPIC-Elderly study.

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    Abstract Title:

    Modified Mediterranean diet and survival after myocardial infarction: the EPIC-Elderly study.

    Abstract Source:

    Eur J Epidemiol. 2007;22(12):871-81. Epub 2007 Oct 10. PMID: 17926134

    Abstract Author(s):

    A Trichopoulou, C Bamia, T Norat, K Overvad, E B Schmidt, A Tjønneland, J Halkjaer, F Clavel-Chapelon, M-N Vercambre, M-C Boutron-Ruault, J Linseisen, S Rohrmann, H Boeing, C Weikert, V Benetou, T Psaltopoulou, P Orfanos, P Boffetta, G Masala, V Pala, S Panico, R Tumino, C Sacerdote, H B Bueno-de-Mesquita, M C Ocke, P H Peeters, Y T Van der Schouw, C González, M J Sanchez, M D Chirlaque, C Moreno, N Larrañaga, B Van Guelpen, J-H Jansson, S Bingham, K-T Khaw, E A Spencer, T Key, E Riboli, D Trichopoulos

    Abstract:

    Mediterranean diet is associated with lower incidence of coronary heart disease, and two randomised trials indicated that it improves prognosis of coronary patients. These trials, however, relied on a total of 100 deaths and evaluated designer diets in the clinical context. We have evaluated the association of adherence to the modified Mediterranean diet, in which unsaturates were substituted for monounsaturates, with survival among elderly with previous myocardial infarction within the European Prospective Investigation into Cancer and nutrition (EPIC) study. As of December 2003, after a median follow-up of 6.7 years, 2671 EPIC participants from nine countries were 60 years or older and had prevalent myocardial infarction but no stroke or cancer at enrolment, complete information on dietary intakes and important covariates and known survival status. Adherence to the modified Mediterranean diet was assessed through a 10-unit-scale. Mortality ratio in relation to modified Mediterranean diet was estimated through Cox regression controlling for possible confounding. Increased adherence to modified Mediterranean diet by two units was associated with 18% lower overall mortality rate (95% confidence interval 7-27%, fixed effects model). There was no significant heterogeneity by sex, age at enrolment, or country, although the association tended to be less evident among northern Europeans. Associations between food groups contributing to the modified Mediterranean diet and mortality were generally weak. A diet inspired by the Mediterranean pattern that can be easily adopted by Western populations is associated with substantial reduction of total mortality of coronary patients in the community.

  • Myocardial Infarction

    Myocardial infarction (MI), commonly known as a heart attack, occurs when blood flow decreases or stops to a part of the heart, causing damage to the heart muscle. The most common symptom is chest pain or discomfort which may travel into the shoulder, arm, back, neck, or jaw. Often it occurs in the center or left side of the chest and lasts for more than a few minutes. The discomfort may occasionally feel like heartburn. Other symptoms may include shortness of breath, nausea, feeling faint, a cold sweat, or feeling tired. About 30% of people have atypical symptoms. Women more often have atypical symptoms than men. Among those over 75 years old, about 5% have had an MI with little or no history of symptoms. An MI may cause heart failure, an irregular heartbeat, cardiogenic shock, or cardiac arrest.

  • One-Year Safety Analysis of the COMPARE-AMI Trial: Comparison of Intracoronary Injection of CD133 Bone Marrow Stem Cells to Placebo in Patients after Acute Myocardial Infarction and Left Ventricular Dysfunction. 📎

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    Abstract Title:

    One-Year Safety Analysis of the COMPARE-AMI Trial: Comparison of Intracoronary Injection of CD133 Bone Marrow Stem Cells to Placebo in Patients after Acute Myocardial Infarction and Left Ventricular Dysfunction.

    Abstract Source:

    Bone Marrow Res. 2011 ;2011:385124. Epub 2011 Feb 27. PMID: 22046562

    Abstract Author(s):

    Samer Mansour, Denis-Claude Roy, Vincent Bouchard, Louis Mathieu Stevens, Francois Gobeil, Alain Rivard, Guy Leclerc, François Reeves, Nicolas Noiseux

    Article Affiliation:

    Division de Cardiologie, Département de Médecine, Centre Hospitalier de l'Université de Montréal (CHUM), 3840, Rue Saint Urbain, Montréal, Québec, Canada H2W 1T8.

    Abstract:

    Bone marrow stem cell therapy has emerged as a promising approach to improve healing of the infarcted myocardium. Despite initial excitement, recent clinical trials using non-homogenous stem cells preparations showed variable and mixed results. Selected CD133(+) hematopoietic stem cells are candidate cells with high potential. Herein, we report the one-year safety analysis on the initial 20 patients enrolled in the COMPARE-AMI trial, the first double-blind randomized controlled trial comparing the safety, efficacy, and functional effect of intracoronary injection of selected CD133(+) cells to placebo following acute myocardial infarction with persistent left ventricular dysfunction. At one year, there is no protocol-related complication to report such as death, myocardial infarction, stroke, or sustained ventricular arrhythmia. In addition, the left ventricular ejection fraction significantly improved at four months as compared to baseline and remained significantly higher at one year. These data indicate that in the setting of the COMPARE-AMI trial, the intracoronary injection of selected CD133(+) stem cells is secure and feasible in patients with left ventricle dysfunction following acute myocardial infarction.

  • Salvianolic acid B-vitamin C synergy in cardiac differentiation from embryonic stem cells.

    Abstract Title:

    Salvianolic acid B-vitamin C synergy in cardiac differentiation from embryonic stem cells.

    Abstract Source:

    Biochem Biophys Res Commun. 2009 Oct 2;387(4):723-8. Epub 2009 Jul 28. PMID: 19643081

    Abstract Author(s):

    Sunny Sun-Kin Chan, Jyh-Hong Chen, Shiaw-Min Hwang, I-Ju Wang, Hui-Jing Li, Richard T Lee, Patrick C H Hsieh

    Article Affiliation:

    Institute of Clinical Medicine and Research Center for Clinical Medicine, National Cheng Kung University&Hospital, Tainan, Taiwan, ROC.

    Abstract:

    Inefficient cardiomyocyte differentiation limits the therapeutic use of embryonic stem (ES) cell-derived cardiomyocytes. While large collections of proprietary chemicals had been screened to improve ES cell differentiation into cardiomyocytes, the natural product library remained unexplored. Using a mouse ES cell line transfected with a cardiomyocyte-specific alpha-myosin heavy chain promoter-driven enhanced green fluorescent protein (EGFP) reporter, we screened 24 natural products with known cardioprotective actions. Salvianolic acid B (saB), while produced minimal effect on its own, concentration-dependently synergized with vitamin C in inducing cardiomyocyte differentiation, as demonstrated by an increase in EGFP(+) cells, beating area in embryoid bodies, and expression of cardiomyocyte maturity markers. This synergy is specific to cardiomyocyte differentiation, and is involved with collagen synthesis. The present study demonstrates the saB-vitamin C synergy in inducing ES cell differentiation into matured and functional cardiomyocytes, and this may lead to a practicable cocktail approach to generate ES cell-derived cardiomyocytes for cardiac stem cell therapy.

  • Synergistic interactions of ferulic acid with ascorbic acid: its cardioprotective role during isoproterenol induced myocardial infarction in rats.

    Abstract Title:

    Synergistic interactions of ferulic acid with ascorbic acid: its cardioprotective role during isoproterenol induced myocardial infarction in rats.

    Abstract Source:

    Mol Cell Biochem. 2006 Feb ;283(1-2):139-46. PMID: 16444596

    Abstract Author(s):

    Surinder Kumar Yogeeta, Arunachalam Gnanapragasam, Subramanian Senthil Kumar, Rajakannu Subhashini, Arumugam Sathivel, Thiruvengadum Devaki

    Article Affiliation:

    Surinder Kumar Yogeeta

    Abstract:

    Studies on the lipid peroxidation and antioxidant changes and their significance during myocardial injury have provided a new insight into the pathogenesis of heart disease. The heart failure subsequent to myocardial infarction may be associated with an antioxidant deficit as well as increased myocardial oxidative stress. The present study was designed to evaluate the effect of the combination of ferulic acid and ascorbic acid on antioxidant defense system and lipid peroxidation against isoproterenol (ISO)-induced myocardial infarction in rats. Induction of rats with isoproterenol (150 mg/kg body weight daily, i.p.) for 2 days resulted in a marked elevation in lipid peroxidation, serum marker enzymes (LDH, CPK, GOT, and GPT), and a significant decrease in activities of endogenous antioxidants (SOD, GPx, GST, CAT, and GSH). Pre-co-treatment with the combination of ferulic acid (20 mg/kg body weight/day) and ascorbic acid (80 mg/kg body weight/day) orally for 6 days, significantly attenuated these changes when compared to the individual treatment groups. Histopathological observations were also in correlation with the biochemical parameters. Thus, ferulic acid and ascorbic acid significantly counteracted the pronounced oxidative stress effect of ISO by the inhibition of lipid peroxidation, restoration of antioxidant status, and myocardial marker enzymes levels. In conclusion, these findings indicate the synergistic protective effect of ferulic acid and ascorbic acid on lipid peroxidation and antioxidant defense system during ISO-induced myocardial infarction and associated oxidative stress in rats.

  • Tai Chi Chuan improves functional capacity after myocardial infarction: A randomized clinical trial.

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    Abstract Title:

    Tai Chi Chuan improves functional capacity after myocardial infarction: A randomized clinical trial.

    Abstract Source:

    Am Heart J. 2015 Jun ;169(6):854-60. Epub 2015 Mar 13. PMID: 26027624

    Abstract Author(s):

    Rosane Maria Nery, Maurice Zanini, Juliana Beust de Lima, Raquel Petry Bühler, Anderson Donelli da Silveira, Ricardo Stein

    Article Affiliation:

    Rosane Maria Nery

    Abstract:

    BACKGROUND:Patients with a recent myocardial infarction (MI) present a reduction in functional capacity expressed as a decrease in peak oxygen consumption (Vo2 peak). The impact of a Tai Chi Chuan (TCC) cardiac rehabilitation program for patients recovering from recent MI has yet to be assessed. Our goal is to evaluate functional capacity after a TCC-based cardiac rehabilitation program in patients with recent MI.

    METHODS:A single-blind randomized clinical trial was conducted. The researchers who performed the tests were blinded to group allocation. Between the 14th and 21st days after hospital discharge, all patients performed a cardiopulmonary exercise testing and a laboratory blood workup. Mean age was similar (56±9 years in the TCC group and 60±9 years in the control group). Patients allocated to the intervention group performed 3 weekly sessions of TCC Beijin style for 12 weeks (n=31). The control group participated in 3 weekly sessions of full-body stretching exercises (n=30).

    RESULTS:After the 12-week study period, participants in the TCC group experienced a significant 14% increase in Vo2 peak from baseline (21.6± 5.2 to 24.6 ± 5.2 mL/kg per minute), whereas control participants had a nonsignificant 5% decline in Vo2 peak (20.4 ± 5.1 to 19.4 ± 4.4 mL/kg per minute). There was a significant difference between the 2 groups (P<.0001).

    CONCLUSIONS:Tai Chi Chuan practice was associated with an increase in Vo2 peak in patients with a recent MI and may constitute an effective form of cardiac rehabilitation in this patient population.

  • The Effect of Acupressure on Physiological Parameters of Myocardial Infarction Patients: A Randomized Clinical Trial. 📎

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    Abstract Title:

    The Effect of Acupressure on Physiological Parameters of Myocardial Infarction Patients: A Randomized Clinical Trial.

    Abstract Source:

    Iran J Nurs Midwifery Res. 2018 Mar-Apr;23(2):143-148. PMID: 29628963

    Abstract Author(s):

    Marzieh Batvani, Hojatollah Yousefi, Mahboubeh Valiani, Javad Shahabi, Hossein Mardanparvar

    Article Affiliation:

    Marzieh Batvani

    Abstract:

    Background:Myocardial infarction is a major complication of coronary heart disease, and due to high mortality, is a part of important medical emergencies. Today, complementary and alternative medicine, as nonpharmacological and health promotion methods is considered. Therefore, this study was designed to evaluate the effectiveness of acupressure on physiological parameters of patients with myocardial infarction.

    Materials and Methods:This clinical trial was carried out among two groups and three stages in 2015. Study participants included 64 patients hospitalized in Iran, Isfahan Shahid Chamran hospital. Acupressure in five points and at any point for 2 minutes, twice per day for 3 days was done in the experimental group and as the same at a false point for the control group. Physiological parameters were recorded before, immediately, and 30 minutes after intervention. Data were analyzed using SPSS 20 and independent-tests, Chi-square, Mann-Whitney test, repeated-measurements analysis of variance.

    Results:Independent-test immediately and 30 minutes after the intervention showed that mean systolic blood pressure and arterial oxygen saturation in the intervention group were significantly lower and higher than the control group, respectively; however, mean diastolic blood pressure and heart rate were not significantly different. However, 30 minutes after intervention, diastolic blood pressure and heart rate were significantly lower in the intervention group.

    Conclusions:Acupressure in five points of body had a positive effect on physiological parameters, and showed that after a short time of interventions these parameters lead to promotion over time.

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