Showing 5 results for Myocardial Infarction
Imaneh Bagheri, Robabeh Memarian, Ebrahim Hajizadeh, Behrooz Pakcheshm,
Volume 2, Issue 1 (5-2014)
Abstract
Background & Objective: Myocardial infarction is one of the most common coronary artery diseases. One of the educational needs of patients, is how to perform sexual activities. Unfortunately, this issue is not being taught to patients, leading to problems in patients and their partners. This study was aimed to determine the effect of sex education on patients and their spouses› satisfaction after myocardial infarction.
Method: This Quasi-experimental, non-randomized study was performed on 60 patients with myocardial infarction and their spouses in the city of Yazd whom were divided into two groups of experimental and control (60 in each group),in the year 1392. The main method of this study was the education and preparation of nurses and then educating patients by trained nurses and to assess sexual satisfaction based on the standard Larson›s questionnaire. The data were then statistically analyzed using SPSS version 16 using paired, independent t-test.
Results: The average sexual satisfaction of patients in the experimental group before the intervention was 81.93 ± 12.47 and after the intervention 82.50 ± 12.57 While in the control group before the intervention the average satisfaction was 83.10 ± 17.36 and after 6 weeks 75.30 ± 15.42. Also the mean sexual satisfaction of partners in the test group before and after the intervention was 81.30 ± 12.47 and 82.07 ± 12.28 respectively. In the control group before the intervention, the average score was 82.50 ± 17.21 and after intervention it was 74.57 ± 15.30. There was significant difference between patients and spouses› sexual satisfaction scores in the experimental and control groups before and after the intervention (P=0.001).
Conclusion: Sex education increased the sexual satisfaction among the tested group. Therefore, it is suggested to include programs in order to prepare nurses in terms of sex education of patients and their spouses in cardiac intensive wards.
Shirin Heidarpour, Mehran Ghahramani, Sedigheh Hosseinpour Delavar,
Volume 8, Issue 4 (12-2020)
Abstract
Background and Objective: Vascular obstruction and impaired blood flow and oxygen delivery cause a myocardial infarction and limit a person's function. Therefore, finding a way to create new arteries and replace blocked arteries has always been of interest to researchers, including exercise physiologists. Therefore, this study was conducted to evaluate the effect of eight weeks of moderate-intensity endurance training on the capillary density of the myocardium and ejection fraction and left ventricular shortening fraction in male rats with myocardial infarction.
Material and Methods: 16 ten-week-old male wistar rats with mean weight of 250-300gr were allocated to two groups of experimental (60 minutes of interval treadmill running for four minutes at an intensity of 65-70% VO2max and two minutes of active rest at 50-60 percent of VO2max for 5 days a week for 8 weeks) and control group (without any training). Immunohistochemistry was used to measure the capillary density of the myocardium. Ejection fraction and left ventricular shortening fraction were measured by Doppler echocardiography. Data were analyzed in SPSS18 using independent samples t test (α≤ 0.05).
Results: The findings showed that there was a significant increase in the capillary density of the myocardium (p=0.000), ejection fraction (P = 0.001) and left ventricular shortening fraction (P = 0.001) in the experimental group as compared with the control group.
Conclusion: In general, eight weeks of moderate-intensity endurance training can effectively increase angiogenesis in male Wistar rats after MI.
Ali Mohammadnia, Khosro Jalali Dehkordi, Gholamreza Sharifi,
Volume 9, Issue 3 (10-2021)
Abstract
Background and Objective: The application of exercise training and herbal supplements is believed to be a typical approach in treating chronic diseases and metabolic disorders. Accordingly, given the healing effects of swimming training and cannabidiol (CBD) oil consumption, the aim of the current study was to reveal if eight weeks of swimming training and CBD oil consumption downregulates the expression of MAPK, PPARα genes in the heart tissue of myocardial infarction rats.
Material and Methods: In the present experimental study, 20 myocardial infarction rats were divided into four groups of five animals, including: 1) control, 2 swimming training, 3) CBD, 4) CBD + swimming training, and 5) healthy control. For eight weeks, groups 3 and 4 consumed 50 mg/kg of CBD daily by gavage, and groups 2 and 4 performed swimming training five days a week. Induction of myocardial ischemia was performed by subcutaneous injection of isoproterenol (50 mg/kg i.p.), in myocardial infarction rats. Bax and Bcl2 cardiomyocytes were measured by PCR-RT. For data analysis, one-way analysis variance test was used to compare inter-group differences at P<0.05.
Results: Swimming training, CBD consumption and swimming training with CBD consumption had a significant effect on reducing MAPK gene expression in cardiac tissue (P≤0.05). Also, swimming training with CBD consumption had a greater effect than swimming training and CBD consumption alone on reducing PPARα gene expression in cardiac tissue (P≤0.05).
Conclusion: It appears that application of swimming training with CBD oil consumption has more positive impacts on improving MAPK and PPARα gene expression levels in the heart tissue of rats with myocardial infarction than using each one alone. Besides, swimming training with CBD oil consumption plays a role in the rehabilitation process and improves key factors involved in cardiovascular health.
Monireh Omomi, Farzaneh Taghian, Gholamreza Sharifi,
Volume 10, Issue 2 (5-2022)
Abstract
Background and objectives: Zingiber officinale extract can control cardiovascular risk factors. Moreover, endurance training may effectively rehabilitate myocardial infarction by strengthening the myocardial muscle tissue. In-silico analysis identified essential genes involved in the heart damage process based on data from the DisGeNET database. Hence, we estimated the affinity of chemical and bioactive molecules for PPARγ. Therefore, this study aimed to investigate the effect of endurance exercise alone or combined with Zingiber officinale extract on Myocardial infarction rats.
Material and Methods: Twenty-five male rats were randomly divided into five groups, including (1) group of myocardial infarctions (MI) induced by subcutaneous injection of isoproterenol, (2) myocardial infarction+exercise (MI+EX), (3) myocardial infarction+Zingiber Officinale extraction administered orally (MI+GE), (4) myocardial infarction+exercise+Zingiber Officinale extract (MI+EX+GE), and (5) Control group. The qPCR-Real Time technique was used to measure the expression of PGC1-ɑ, PPARγ, and TNF-ɑ genes. We evaluated the concentration of Troponin-1 as a vital myocardial ischemia marker.
Results: In bioinformatics analysis, we found that the PPARγ, PGC1-ɑ, and TNF-ɑ pathways were critical in heart injury. Also, the effects of Zingiber officinale on heart tissue were detected through PPARγ by drug design. Endurance training combined with Zingiber officinale consumption reduced the expression of TNF-ɑ, Troponin-1 and increased the PGC1-ɑ, PPARγ genes. Furthermore, consumption of Zingiber officinale extraction improved the levels of PGC1-ɑ, PPARγ, TNF-ɑ, and Troponin-1.
Conclusion: Our data indicated that six weeks of endurance training and consumption of Zingiber officinale extract could reduce the relative expression of the TNF-ɑ and significantly increase the level of PGC1-ɑ, PPARγ.
Vahid Fallahzadeh, Farzaneh Taghian, Khosro Jalali Dehkordi,
Volume 11, Issue 3 (12-2023)
Abstract
Background: Aerobic exercise and ginger after myocardial infarction (MI) modify calcium handling. Ginger has cardioprotective effects on cardiovascular disease. This study assessed the effects of aerobic exercise combined with ginger extract (GE) loaded into chitosan nanoparticles (CNPs) on miRNA-214, Serca2a, and Anp genes and cardiac fibrosis in myocardial infarction (MI) rat models.
Methods: Twenty-five male rats divided into 5 groups were subjected to ginger treatment and exercise. Aerobic exercises (AE) were performed on a rodent treadmill 5 days per week for 6 weeks. The GE-CNPs (500 mg/kg) were orally administered to the rats for 6 weeks. The expressions of miRNA-214, Serca2a, and Anp genes were assessed by real-time polymerase chain reaction (PCR). The histopathological assessments were performed using hematoxylin and eosin (H&E) and Masson's trichrome staining. The serum activities of creatine kinase-MB (CK-MB) and lactate dehydrogenase (LDH) were also measured by ELISA.
Results: The MI model and CNP groups had the highest rate of collagen deposition (P <0.05). The serum activities of both CK-MB and LDH were significantly elevated in the Isop group compared to the control (P<0.05), while following aerobic exercise and ginger treatment, their activity was significantly dropped in the Isop + AE + GE-CNPs group. The expression of miRNA-214 showed a significant increase in GE-CNPs (P <0.01) and GE-CNPs + AE (P <0.001) groups. Serca2a and Anp genes showed significant changes in the GE-CNPs + AE group (P<0.05).
Conclusion: Our findings revealed that aerobic exercise, along with ginger treatment, improved cardiac fibrosis, modulating the expression levels of miRNA-214, Serca2a, and Anp genes and serum levels of MI biomarkers.
