Showing 18 results for Training
Bahareh Yazdanparast Chaharmahali, Mohammad Ali Azarbayjani, Maghsood Peeri, Parvin Farzanegi Arkhazloo,
Volume 6, Issue 4 (12-2018)
Abstract
Background and objectives: Elderly is characterized by decreased cardiac function, which is widely associated with mitochondrial failure in cell death. Elderly causes heart apoptosis. Although the old heart is vulnerable to apoptosis, physical training and some supplements through different mechanisms could be effective in reducing apoptosis. The present study aimed to investigate the effect of interval training on some apoptotic parameters of Bax and Bcl2 cardiomyocytes in old female rats.
Methods: In an experimental study, 49 Wistar female rats (2 years old) were randomly assigned into 7 groups: control, saline, curcumin, moderate intensity training, moderate intensity training + curcumin, high intensity training, high intensity training + curcumin. The experimental groups received gavage doses of curcumin 30 mg / kg body weight three days a week via. The saline group also received the same amount of saline. Training groups had moderate and severe exercises on the treadmill for eight weeks, and three sessions per week. Forty-eight hours after the last training session and gavage, the animals were killed and their heart tissues were isolated to determine the levels of Bax and Bcl2.
Results: The results indicated that interval training and curcumin consumption could significantly increase the levels of Bcl2 and BAX and the BAX / Bcl2 ratio, the amount of which depends on the intensity of training. Moreover, the combination of training and curcumin had an antagonistic effect.
Conclusion: According to the results, physical activity and curcumin separately have a protective effect on the heart tissue; however, these two interventions do not enhance each other’s effect. Hence each one is suggested to be used separately.
Jamshid Banaii Broojeni, Saeed Keshavarz, Iman Zakavi,
Volume 7, Issue 1 (3-2019)
Abstract
Background and objectives: The purpose of the present study was to examine the effect of a progressive resistance-training program beside an energy deficit diet on body Composition, insulin resistance and plasma adiponectin levels in overweight adult men.
Methods: Twenty-five overweight men (age =32.1 ± 4.3 years, BMI =28.9 ± 1.3 kg.m-2) were randomly assigned into one of the two groups: resistance training+ diet (RD, n =15); and diet only (DO, n =12). Both groups undertook a 12-week weight loss program using a moderate isocaloric energy deficit.
Results: After 12 weeks intervention, there was equivalent significant weight loss for both groups (p <0.01). Total and abdominal fat mass, fasting insulin concentration and HOMA-IR score were decreased in both groups (p <0.01). All previously mentioned variables except fasting insulin levels were more significantly reduced in RD compared to DO group. There was a significant decrease in lean body tissue only in DO (p <0.01) group. We did not find any significant changes in plasma adiponectin concentration of the experimental groups. Reduction in insulin resistance had a significant positive correlation with abdominal and total fat loss (p < 0.05) and a negative correlation with lean mass loss (p < 0.05).
Conclusion: Adding a progressive resistance-training program to an energy deficit diet, without any change on magnitude of weight loss could prevent the loss of lean body mass and improve the reduction of total and abdominal fat mass and insulin resistance. Moreover, the change in body composition and insulin resistance was accompanied with no significant change in plasma adiponectin.
Faegheh Jafari Amoli, Seyed Ali Hosseini, Mohammad Ali Azarbayjani, Parvin Farzanegi Arkhazloo,
Volume 7, Issue 4 (12-2019)
Abstract
Background and objectives: It has been reported that deep-fried oils (DFOs) used in the preparation of fast foods can affect the immune system. On the other hand, regular physical activity and proper nutrition, in addition to affecting physical function, have a tremendous impact on the immune system. The aim of the present study was to investigate the anti-inflammatory effects of aerobic training (T) and octopamine (O) consumption in the heart tissue of rats fed DFO.
Methods: In this experimental study, 25 male Wistar rats with mean age of 20 weeks old and weighing 300- 350 were purchased and divided into 5 groups of 5 rats, including: 1) control, 2) DFO, 3) DFO+T, 4) DFO+O and 5) DFO+T+O. During four weeks, groups 2- 5 received DFO by gavage; groups 3- 5 ran on treadmill (with speed of 50% Vo2max in the first week which reached 65% Vo2max in the last week) five sessions per week and 20 minutes per session and groups 4-5 received 81 μmol/kg octopamine supplement peritoneally for 5 days per week. Nuclear factor kappa B (NF-κB) and tumor necrosis factor-alpha (TNF-α) gene expression were measured in heart tissue.
Results: DFO significantly increased NF-κB (P=0.005) and TNF-α (P=0.001) gene expression levels; T significantly on decreased NF-κB (P=0.01) and TNF-α (P=0.007) gene expression levels; O consumption significantly decreased NF-κB (P=0.001) and TNF-α (P=0.001) gene expression levels; however, the interactive effects of T and O consumption on NF-κB (P=0.57) and TNF-α (P=0.20) gene expression levels was not significant.
Conclusion: It seems that T and O consumption alone have anti-inflammatory effects on the heart tissue of rats fed DFO, however T and O do not have anti-inflammatory interactive effects.
Mohammad Mousaei, Mohammad Ali Azarbayjani, Maghsoud Peeri, Seyed Ali Hosseini,
Volume 7, Issue 4 (12-2019)
Abstract
Background and objectives: Controlling nutrition and exercise can be two important strategies in controlling tendon health. It has been reported that resistance training and palm pollen separately can improve Scleraxis (Scx) in tendon tissue; so present study aimed to investigate the interactive effects of resistance training with ethanolic extract of palm pollen on Scx protein and gene expression levels in the tendon tissue of male adult rats.
Methods: In this experimental study 30 male adult rats divided into 6 groups of 6 rats including: 1) sham, 2) training, 3) palm pollen, 4) testosterone, 5) training + palm pollen, and 6) training + testosterone. During 4 weeks, groups 2, 5, and 6 performed resistance trainings for five sessions per week; groups 3 and 5 received 100 mg/kg palm pollen for five days per week via gavage and groups 4 and 6 received 2 mg/kg testosterone propionate peritoneally. Scx protein and gene expression levels were measured in tendon tissue by Western blot and real-time PCR methods respectively. Shapiro- Wilk, one way ANOVA with Tukey’s post- hoc tests were used to analyze the findings (P≤0.05).
Results: Training significantly increased Scx protein levels (P=0.005); palm pollen significantly increased Scx gene expression levels (P=0.001); training + palm pollen significantly increased Scx protein and gene expression levels (P=0.001) also training + palm pollen had more favorable effect on increase of Scx protein and gene expression levels compared to training and palm pollen alone (P=0.001).
Conclusion: It seems that resistance training simultaneously with palm pollen administration can have a more favorable effect than each one alone on improving Scx protein and gene expression levels in tendon tissue of male adult rats.
Zinab Shykholeslami, Ahmad Abdi, Alireza Barari, Seyed Ali Hosseini,
Volume 7, Issue 4 (12-2019)
Abstract
Background and objectives: Proper nutrition and exercise are two effective factors in improving liver function in old age. The aim of this study was to investigate the effect of aerobic training (T) with consumption of Citrus aurantium (CA) on SIR1 and PGC-1α gene expression levels in the liver tissue of elderly rats.
Method: In this experimental study, 25 elderly female rats were placed in five groups of 5 rats, including 1) control, 2) sham, 3) CA, 4) T and 5) T+CA. Over the course of eight weeks, groups 4 and 5 ran on the treadmill three sessions per week at 65 to 75 percent of the maximum running speed, and groups 3 and 5 received 300 mg/kg/day of CA extract peritoneally. Forty- eight hours after the last training session and CA consumption, SIR1 and PGC-1α gene expression levels in the liver tissue were measured by real-time PCR method. In order to analyze the findings, the Shapiro-Wilk, one-way ANOVA with Tukey’s post- hoc tests were used (P≤0.05).
Results: T had a significant effect on increasing SIR1 (P = 0.009) and PGC-1α (P = 0.001) gene expression levels; CA had a significant effect on reducing SIR1 gene expression levels and increasing PGC-1α (P = 0.001); T + CA had a greater effect on increasing PGC-1α gene expression levels than T and CA (P = 0.001).
Conclusion: Although eight weeks of T and CA consumption alone appear to improve PGC-1α gene expression levels in the liver tissue of elderly rats, concurrent T and CA consumption has more favorable effects than each of them alone.
Eraj Baghery Nasab Najaf Abad, Ali Khajehlandi, Amin Mohammadi,
Volume 8, Issue 1 (3-2020)
Abstract
Background and objective: Type 2 diabetes (T2D) is a metabolic disease that leads to increased levels of lipids, therefore the present study aimed to investigate the effect of eight weeks of aerobic training(AT) with silymarin (S)consumption on lipid profile in men with type 2 diabetes.
Material and Methods: 60 middle-aged male volunteers were randomly divided into 4 groups, including: (1) control(C) + placebo, (2) AT + placebo, (3) S consumption and (4) AT+S consumption. The AT groups performed for eight weeks, three sessions per week and 20-45 minutes per session at an intensity of 60 to 85% of the reserve heart rate, and the S groups of consumed 140 mg / kg of S daily (in two meals). Serum levels of Low Density Lipoprotein (LDL), High Density Lipoprotein (HDL), Cholesterol (CHO), and Triglyceride (TG) were measured before and after the test. Data were analyzed using one-way ANOVA and Bonferroni’s test, and P value less than 0.05 was considered significant.
Results: AT reduced serum levels of LDL, CHO, TG and increased HDL in men with T2D(P ≥ 0.05). Consumption of S reduced LDL, CHO, TG and increased HDL in men with T2D(P ≥ 0.05). AT and S consumption reduced LDL, CHO, TG and increased HDL; also, decrease in LDL, CHO, TG and increase in HDL in the AT and S consumption group was more favorable than the effect of S alone (P ≥ 0.05).
Conclusion: It seems that AT and S consumption simultaneously have interactive effects on reducing LDL, CHO, TG and increasing HDL in men with T2D.
Omid Reza Salehi, Simin Ghabezi, Ali Khajehlandi, Amin Mohammadi,
Volume 8, Issue 2 (7-2020)
Abstract
Background and objective: Aging and menopause are associated with decreased antioxidant function, however, the role of exercise and estrogen consumption in the health of these people has been shown. The aim of the present study was to investigate the interactive effect of aerobic training (AT) and estrogen (Es) on serum levels of catalase (Cat) and glutathione peroxidase (Gpx) enzymes in ovariectomized rats.
Material and Methods: In this experimental study, 45 ovariectomized rats were randomly divided into 5 groups of 9 rats, including (1) control (C), (2) estrogen solvent (sesame oil) (Sh), (3) AT, (4), Es,and (5) AT+Es. Rats in groups 3 and 5 were trained for eight weeks and three sessions, and groups 4 and 5 randomly received 30 micrograms of estradiol valerate daily for eight weeks. Data analysis was analyzed using one-way analysis of variance and Tukey’s post hoc test at the significance level of 0.05.
Results: Cat levels in the AT (P= 0.006), Es (P= 0.005) and AT + Es (P = 0.001) groups were significantly higher than the control group. Cat levels in the AT + Es group were also significantly higher than in the Es group (P = 0.01). Gpx levels in the AT (P = 0.001), S (P = 0.001) and AT + Es (p = 0.001) groups were significantly higher than the control group, while in the S (P = 0.001) and AT + Es (P = 0.001) groups, they were significantly higher than the AT group.
Conclusion: It seems that aerobic training combined with estrogen consumption synergistically improves the function of the antioxidant system in ovariectomized rats. However, it seems that the signaling pathway of interventions requires further study.
Raziyeh Shiri, Mandana Gholami, Hojatolah Nikbakht, Khosrow Ebrahim,
Volume 8, Issue 2 (7-2020)
Abstract
Background and objective: Resistance training is a potential stimulus to increase muscle protein synthesis and the time under tension of muscle is one of the variables of strength training that contributes to its adaptation. The aim of this study was to investigate the effect of resistance training with slow and fast speeds on some anabolic and catabolic hormones in healthy young women.
Material and Methods: This quasi- experimental study was conducted on 20 female students (mean age 21.65±2.03 years). The subjects were randomly and equally assigned to two groups with a time under tension of 1s-1s (fast contraction speed (FCS)) and 3s-3s (slow contraction speed (SCS)). The training load was the same in both groups and resistance training was done in a circular manner for six weeks, three days a week in eight stations. Blood samples were taken from the subjects to study the research variables before the training period and 48h after the last session of the training.
Results: There was no significant difference between the serum levels of GH(P = 0.82), IGF-1(P = 0.13) and cortisol(P = 0.59) in both groups, but the levels of myostatin in the fast group increased and in the slow group decreased, and the difference between the two groups was significant (P = 0.04). Also, in the strength test, the slow group experienced further increased strength. (P = 0.02)
Conclusion: : Although no significant changes in the levels of IGF-1, myostatin, and cortisol is observed in intragroup comparison at six weeks, resistance training with slow contraction speed can lead to further increases in the growth hormone levels and strength.
Rasoul Azizi, Amin Mohammadi, Ali Khajehlandi,
Volume 8, Issue 4 (12-2020)
Abstract
Background and Objective: Although the efficacy of selected training and antioxidant herbs in the treatment of diabetes mellitus has been determined, the interactive effect of selected training and aqueous extract of barberry on insulin resistance and risk factors of type2 diabetes mellitus is not well understood. The aim of the present study was to investigate the effect of aqueous extract of barberry and selected training on some blood factors in men with type2 diabetes.
Material and Methods: In this study, 48 middle-aged men an age range of 40-50 years with type2 diabetes participated in the study. The participants were randomly divided into four groups of 12 subjects, including(1)control, (2)aqueous extract of barberry consumption, (3)aerobic training, and (4)aerobic training+ barberry consumption, based on insulin resistance index. The participants in the aqueous extract of barberry consumption group received200 ml of barberry juice daily for8 weeks and the training and training+ barberry consumption groups performed the training protocol designed in the study for 8 weeks, while the control group did not receive any intervention.
Results: After 8 weeks of exercise training and consumption of aqueous extract of barberry, insulin resistance index, fasting insulin level, fasting blood glucose level, triglyceride level, low density lipoprotein (LDL)and total cholesterol were significantly decreased compared to the control group and high density lipoprotein (HDL)had a significant increase; on the other hand, regarding the intergroup changes, only the levels of LDL and CHO were significant compared to the aqueous extract of barberry consumption and aerobic training.
Conclusion: In general, aqueous extract of barberry consumption and regular exercise training seems to be effective in improving insulin resistance index and blood lipids levels in type2 diabetic patients.
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.
Somaye Pouranfar, Mohammad Ali Azarbayjani, Bahram Abedi,
Volume 8, Issue 4 (12-2020)
Abstract
Background and Objective: Reports indicate that over 60% of people with diabetes die from cardiovascular diseases. The present study was conducted to investigate the interactive effects of resistance training and genistein consumption on the serum levels of vascular cell adhesion molecule 1 (VCAM-1), intercellular adhesion molecule 1 (ICAM-1) and C-Reactive Protein (CRP) in diabetic rats with streptozotocin.
Material And Methods: In this experimental study, 40 diabetic rats were selected and divided into 5 groups of 8 subjects, including: (1) control, (2) sham (dimethyl sulfoxide), (3) resistance training (4), genistein consumption, and (5) resistance training and genistein consumption. Rats in groups 3 and 5 received 8 weeks of resistance training, 3 sessions per week, with 30 to 100% body weight, and rats in groups 4 and 5 received 30 mg/kg of peritoneal genistein per day. Data were analyzed using independent sample t-test and two-way ANOVA in SPSS software (p≤0.05).
Results: Genistein consumption has a significant effect on reduced serum levels of VCAM and ICAM in diabetic rats (p≤0.05). Eight weeks of resistance training has a significant effect on reduced serum levels of ICAM and CRP in diabetic rats (p≤0.05). Resistance training and genistein consumption have interactive effects on reduced serum levels of VCAM and CRP in diabetic rats (p≤0.05).
Conclusion: Resistance training and genistein consumption simultaneously appear to reduce the risk of atherosclerosis in diabetic rats.
Mojtaba Karimi Fard, Ali Khajehlandi,
Volume 9, Issue 1 (3-2021)
Abstract
Background and Objective: Diabetes is one of the health problems in all societies. The aim of the present study was to investigate the effect of a period of training at different temperatures on the gene expression of GLUT_4 and insulin receptor in the brown adipose tissue of diabetic rats.
Material and Methods: In this experimental study, 21 diabetic rats were randomly divided into 3 groups of 7 animals, including: (1) control (C), (2) swimming training at 5° C (S5ºC), and (3) swimming training at 36° C (S36ºC). Water swimming training was performed at 5±2° C and 36±2° C for six weeks, 5 sessions per week and 2-4 minutes per session. Data were analyzed using one-way analysis of variance and Tukey’s post hoc test at the significance level of p≤0.05.
Results: The gene expression of GLUT4 and insulin receptor in the S5º C and S36º C groups was significantly (P = 0.0001) higher than the control group. Also, the gene expression of GLUT4 in the S36º C group was higher than the S5º C group (p = 0.001), and the expression of insulin receptor in the S5º C group was significantly (p = 0.001) higher than the S36º C group.
Conclusion: Swimming training at 5º C and 36º C significantly increased the gene expression of GLUT4 and insulin receptor in the brown adipose tissue of diabetic rats.
Farah Nameni, Fatemeh Jafary Nia, Bahareh Yazdanparast Chaharmahali,
Volume 9, Issue 2 (5-2021)
Abstract
Background and Objective: Autophagy is a genetically and evolutionarily conserved the programmed process that destroys long-lived cellular proteins and organelles. This study aimed to evaluate the effect of eight weeks of strength training with alpha-lipoic acid supplementation on LC3-I and P62 in elderly diabetic rats.
Material and Methods: In this experimental study, 35 old male Wistar rats were randomly divided into 5 groups (healthy control, diabetic, diabetic + strength training, Diabetic + supplement, Diabetic + strength training + supplement). First, the rats became diabetic and had a fatty liver. Strength training program in 10 weeks performed. Alfa-lipoic acid supplement was also injected 3 days a week. At the end of the training period and tissues were removed and the expression of LC3-I and P62 were measured by RT-PCR. For data analysis, a one-way analysis variance test was used for comparison between groups was considered (P<0/05).
Results: The result showed mRNA LC3-1 has increased and this change is more in the diabetic group. (P=0.001) and despite the decrease in P62 gene expression, we did not see a significant difference between the control group and the diabetic in the training group with and without supplementation.However, no significant difference was observed between training methods and supplementation with exercise. Also, resistance training in combination with alpha-lipoic acid supplementation had a significant effect on reducing P62 content between control and experimental groups. (P=0.001).
Conclusion: Alfa-lipoic acid supplement with anti-oxidant and anti-inflammatory effect along with exercise can play an important role in improving fatty liver in elderly type 2 diabetic rats.
Abdossaleh Zar, Fatemeh Ahmadi,
Volume 9, Issue 2 (5-2021)
Abstract
Background and Objective: Effects of resistance training and herbal supplements on cardiac signaling pathways are sparsely reported in the literature. This study aimed to evaluate the CITED4 gene expression in the cardiac muscle of male rats as a result of resistance exercise and spirulina supplementation.
Material and Methods: Thirty-two rats (male - Sprague Dally) were grouped into 4 groups (1. resistance training: RE, 2. spirulina + resistance training: SP +RE, 3. spirulina platensis: SP, 4. control: Co, n = 8). The training program was performed for healthy training groups 5 sessions per week for 8 weeks. Supplementation included 200 mg/kg/ day of Spirulina for the supplement groups. Real-time PCR was used to measure gene expression. We used of Two-way ANOVA in SPSS (p<0.05).
Results: In comparison with the control group, we observed a significant increase in CITED4 gene expression in RE (P= 0.001) and RE+SP (P= 0.001) groups. Also, there was a significant difference in CEBP gene expression between CO with RE (P= 0.001), SP (P= 0.034), RE+SP (P= 0.001) groups.
Conclusion: Spirulina supplementation alone has no effect on the signaling pathway of cardiac hypertrophy. However, if used concomitantly with resistance training, it can affect the signal pathway of cardiac hypertrophy.
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.
Samaneh Jadidi , Seyed Mohsen Avandi, Ali Khaleghian ,
Volume 11, Issue 1 (7-2023)
Abstract
Samaneh Jadidi,
Seyed Mohsen Avandi 
,
Ali Khaleghian
Background: Obesity is one of the most serious health problems associated with inflammation. It has been found that functional and resistance physical activities improve obesity and inflammation. The aim of this study was to investigate the effect High-intensity Functional training (HIFT) and Circuit resistance training (CRT) on serum levels of the pro-inflammatory factor interferon gamma (IFN-γ) in obese women.
Methods: Thirty-six obese women of Semnan city (age: 32.66 ± 3.91, weight: 86.97± 9.08 and BMI> 30) were selected and divided into three groups of HIIF (n =12), CRT (n = 12) and control (n = 12) were divided. HIIF was performed in the form of cross-fit exercises and Circuit exercises in the form of weight training for 6 weeks. Finally, the IFN-γ was measured using the Human IFN-g Elisa kit 96t-zellbio. To examine the data, one-way analysis of variance and dependent t-test at the level of p≤0.05 were used and all calculations were performed using SPSS software version 24.
Results: The results showed that there was no significant change in IFN-γ level in training groups compared to before training (P>0.05). Also, the results between groups did not show a significant difference in serum IFN-γ between HIIF and CRT (P>0.05).
Conclusion: Therefore, it seems that of exercise does not affect the dependent variable of serum interferon gamma levels.
Farah Nameni, Sviz Khalili Shavarini,
Volume 11, Issue 2 (10-2023)
Abstract
Background: Recently, the role of sports training and medicinal plants in the expression of genes has been considered to prevent the progression of diseases. The purpose of this research was to investigate the role of weight training and oleander extract on interferon regulatory factor 8 (IRF8) and cathepsin S (CTSS) gene expression in the soleus muscle of Alzheimer's disease (AD) model mice.
Methods: Fifty-five male Wistar rats were randomly divided into 5 groups: healthy control group, AD control group, AD resistance training group, AD group with the supplement of Melilotus officinalis, and AD resistance training group + Melilotus officinalis supplement. Trimethyltin-induced AD was induced. In the resistance training protocol, a weight was attached to the tail of the rats, and they had to lift this weight on a ladder with 26 steps. Melilotus officinalis was injected intraperitoneally as a supplement for 6 weeks with a dose of 300 mmol/kg. Seventy-two hours after the last training session, the rats were anesthetized, and the hippocampal tissue was immediately extracted, frozen, and analyzed. A two-way analysis of variance was used to estimate the differences between groups in control and experimental AD mice.
Results: There was a significant increase in the expression level of interferon-regulating factor 8 and cathepsin S genes in the AD group compared to the control group. The results of Bonferroni's post-hoc test showed that in the AD group + resistance training + Melilotus officinalis, a significant decrease was observed compared to the AD group (P≤0.05).
Conclusion: Resistance training and the Melilotus officinalis extract with antioxidant mechanisms can affect CTSS and IRF8 gene expression.
Hamid Reza Zolfi, Amir Shakib, Zahra Niknam, Zhaleh Pashaei,
Volume 11, Issue 3 (12-2023)
Abstract
Background: Metabolic syndrome, a problem of the present age, is a combination of several medical issues, and miRNAs play important regulatory roles in metabolic syndrome. Many studies indicate that high-intensity interval training (HITT) may improve risk factors for metabolic syndrome.
This study aimed to investigate the effect of 8 weeks of HIIT training on the changes in miR-21, miR-122, alanine aminotransferase (ALT), aspartate aminotransferase (AST), low-density lipoprotein (LDL), lipid profile, and glucose.
Methods: In this quasi-experimental study, middle-aged male (n=19) volunteers with metabolic syndrome (body mass index (BMI)>30) were randomly assigned to the control (n=9) and training (n=10) groups. The training program consisted of 8 weeks of HIIT training with 4 sets of workouts with an intensity of 80-90% heart rate for the training group (3 sessions per week during the first 4 weeks and 4 sessions per week during the second 4 weeks). Blood samples were collected from the subjects 48 hours before and after the last training session to analyze miR-21, miR-122, ALT, AST, HDL, LDL, triglyceride, cholesterol, and glucose. The within-group and between-group differences of data were analyzed using the paired t-tests and analysis of covariance at a significance level of P˂0.05 in SPSS software.
Results: This study indicated that HIIT caused a significant decrease in miR-122, ALT, AST, triglyceride, cholesterol, glucose, body weight indicators, fat percentage, and BMI (P˂0.05). Also, a significant increase in miR-21 and HDL levels was observed following HIIT training (P˂0.05).
Conclusion: HIIT training seems essential in metabolic changes, such as reducing the lipid profile, decreasing glucose, and improving liver damage by affecting miR-21 and miR-122 indicators as small regulatory transcripts. However, more extensive studies are needed in this field.
