Showing 9 results for Apoptosis
Majid Jahani, Hasan Matinhomaie, Parvin Farzanegi,
Volume 19, Issue 4 (4-2020)
Abstract
Background: Physical activity plays a major role in the prevention of cardiovascular disease and diabetes, but the effect of intense activity on endoplasmic reticulum proteins and apoptosis and necroptosis in diabetic conditions is unclear. The aim of the present study was to investigate the changes of PERK and CHOP proteins in endoplasmic reticulum of cardiac myocytes of diabetic Wistar rats following continuous and interval exercise.
Methods: For this purpose, 32 male white wistar were purchased and were randomly divided into 4 groups of hemogenus 8 rats in each group: Healthy control (C), Diabetic control (D), Diabetic with moderate-intensity continuous training intensity at the 55min on 26 m/min speed (D+MICT) and Diabetic with high-intensity interval training intensity at the 85-90% of maximum speed (D+HIIT); 5 days/week for 8 weeks. For evaluate changes in the expression of the proteins associated with apoptosis and necroptotic death in the diabetic heart muscle myocardium, based on Western blot analysis will be used. Also, the one-way analysis of variance (ANOVA) is used to determine differences between the study groups.
Results: The results showed that induction of type 2 diabetes increased apoptotic and necroptosis cell death (P≥0.05). Therefore, both continuous and intermittent aerobic exercise modulate apoptotic cell death. And both intermittent and continuous exercise had a significant effect on cell necroptosis death.
Conclusion: It seems that different levels of aerobic exercise have different effects on cardiac myocytes cell death in diabetic rats. But more research is needed to confirm the death of diabetic necroptics.
Maryam Delfan, Malihe Rabiee, Raheleh Amadeh Juybari,
Volume 20, Issue 3 (2-2021)
Abstract
Background: Imbalance of apoptotic factors plays important role in pathogenesis of diabetes. Considering the role of curcumin supplementation and high-intensity interval training (HIIT) on these factors, the aim of this study was to investigate effects of four weeks of HIIT with curcumin supplementation on Bax and Bcl-2 gene expression in the soleus muscle of diabetic rats.
Methods: Present study was experimental research. 30 male Wistar rats were divided into one normal control (NC), and four diabetic groups: control (DC), supplement (SDC), high-intensity interval training (DHIIT) and high-intensity interval training supplement (SDHIIT). The training protocol was performed five days a week for four weeks, which included five to seven two-minute intervals at 80 to 90% of maximum power until exhaustion and one-minute recovery at 30% of maximum power until exhaustion. At the same time, Curcumin gavage at a dose of 100 mg/kg was performed daily. Bax and BCL-2 gene expression levels were measured by the qReal-TimePCR method and data were analyzed by two-way analysis of variance at a significant level of p≥0.05.
Results: Bcl-2 gene expression was significantly increased in DHIIT and SDHIIT groups compared to DC (P= 0.000). Also, a significant decrease in Bax gene expression was observed in DHIIT and SDHIIT groups compared to DC (P=0.000). There was a significant difference between DHIIT and SDHIIT in Bcl-2 (P=0.000) and Bax (P=0.013) gene expression.
Conclusion: It seems that HIIT in combination with curcumin supplementation, is more effective in improving the balance between apoptosis factors than any of these interventions alone.
Abdollah Fatemi, Amin Farzaneh, Hajar Abaszadeh, Mino Dadban,
Volume 21, Issue 1 (3-2021)
Abstract
Background: The formation of islet amyloid polypeptide (IAPP) have been proposed for d increased b-cell apoptosis in type 2 diabetes. Exercise training plays a protective role against diabetes. Alpha lipoic acid (ALA) is a powerful biological antioxidant. However, the role of exercise training and ALA on IAPP are not well understood. The aim of the present study was to investigate the effect of training with different intensity and Alpha lipoic acid supplement on pancreatic mRNA IAPP in rats with type 2 diabetes.
Methods: In this experimental study, 35 wistar rats were randomly divided into seven groups: control, diabetic (D), diabetic+ alpha lipoic acid (ALA), diabetic high intensity training (HIT), diabetic moderate intensity training (MIT), diabetes HIT+ALA (ALA+HIT), diabetic MIT +ALA (ALA+MIT). The HIT and MIT protocols was performed five days a week for six weeks. HIIT included 10 bouts of four minutes (running at 85–90% of VO2max) and MIT 13 bouts of four minutes (running at 65–70% of VO2max). ALA was administered orally 20 mg/kg once a day by gavage. Real-time PCR method for the relative expression of mRNA of IAPP gene were used.
Results: The level of IPAA increased significantly in diabetic group compared to control (p=0.0039). Also, level of IPAA decreased significantly in ALA (p=0.01) and ALA+HIT diabetic group (p=0.021).
Conclusion: diabetes is associated with increased mRNA IAPP in pancreatic b-cell and HIT plus ALA can be as an effective intervention in decreasing IAPP in pancreatic b-cell. in diabetics.
Mohamad Derakhshandeh, Farzaneh Taghian, Khosro Jalali Dehkordi, Ali Hoseini,
Volume 21, Issue 6 (3-2022)
Abstract
Background: Artificial intelligence analysis based on the gene list obtained from the DisGeNET database identified the important genes involved in the heart damage process. Data enrichment highlighted the apoptosis signaling pathway as a vital pathway in cardiovascular risk. Hence, we estimated the binding affinity of chemical and plant bioactive molecules for cytochrome-c protein. Here, we performed to evaluate the effect of eight weeks of resistance training (RT) with Tribulus Terrestris (TT) consumption on the mechanism of apoptosis in the heart tissue of rats exposed to stanozolol.
Methods: Thirty-five male rats were divided into seven groups: (1) Control, (2) Stanozolol (ST), (3) ST + 100 mg / kg TT, (4) ST + 50 mg / kg TT, (5) ST + RT (SRT), (6) S + RT + 100 mg / kg T (SRTT100), and (7) ST + RT + 50 mg / kg T (SRTT50). Differential gene expression was measured by q-RT-PCR. In bioinformatics analysis, the apoptosis signaling pathway was defined as a critical process in heart damage. In addition, adverse effects of Tribulus Terrestris and stanozolol on heart tissue were detected through the apoptotic pathway by molecular docking.
Result: Resistance training along with 100 mg/kg reduced CRP and cytochrome-c Moreover, 100 mg/kg TT as a more favorable effect than 50 mg/kg TT
Conclusion: we showed the beneficial effects of Tribulus Terrestris, the plant’s bioactive compound that can reduce cardiovascular risks by impairing the formation of apoptosome assemblages and inflammation.
Masomeh Sarmadiyan, Eidy Aliijani, Foud Fazalhi, Davood Khorshidi,
Volume 22, Issue 1 (4-2022)
Abstract
Background: The aim of the present study was to investigate the simultaneous effect of resistance training and stem cell injection on the levels of some indicators of skeletal muscle apoptosis in STZ-induced diabetic male rats.
Methods: In this study, 30 rats were randomly divided into 5 groups. Rats in the diabetic group and the diabetic group + stem cell injection had a total of 17 sessions of resistance training for 5 weeks. The training period for rats with this type of training was 3 days, which was done 48 hours before STZ injection. Western blotting was used to evaluate the changes in Caspase7 and caspase3. The data were analyzed using two-factor analysis of variance test with SPSS software version 19 at a significance level of α≤ 5%.
Results: The results of the present study showed that there was no significant difference between the mean of caspase3 in the resistance training group with simultaneous injection of stem cells and the training group. Also, resistance training with simultaneous injection of endothelial stem cells, compared to resistance training or injection alone, led to a significant reduction in Caspase7 expression in skeletal muscle tissue of diabetic rats.
Conclusion: Based on the results of this study, it can be stated that resistance training or injection of endothelial progenitor cells can stimulate apoptosis in skeletal muscle.
Masomeh Sarmadiyan, Eidy Aliijani, Fuad Feizolahi, Davood Khorshidi,
Volume 22, Issue 3 (9-2022)
Abstract
Background: Type 1 diabetes is a disorder caused by autoimmune destruction of pancreatic insulin-producing cells. This induction of autoimmunity may be due to genetic and environmental factors. Bax and Bcl2 proteins play an important role in the process of apoptosis.
Methods: In this study, 30 male Wistar rats weighting approximately 200±20gr were randomly selected from available rats in lab (500). Subjects after 2 weeks of familiarity with the environment were randomly divided into 5 groups of 6, including (diabetes + injection, exercise) and (diabetes + exercise) and (diabetes + injection) and (diabetes control to control the passage of time) and (basic diabetes to Defaults) under the same laboratory conditions and developed type 1 diabetes by intraperitoneal injection of streptozotocin (stz) (60 mg / kg). Rats in the diabetic group and the diabetic group + stem cell injection had a total of 17 sessions of resistance training for 5 weeks.
Results: The results of the present study showed that there was no significant difference between the mean of Bax and Bcl2 in the resistance training group with simultaneous injection of stem cells and the training group.
Conclusion: The results of our study showed that performing 17 sessions of resistance training alone with stem cell injection was effective on the expression of Bax protein and Bcl2, but there was no significant difference between the effect of training alone and training with stem cells.
Masuad Jahantash, Hossein Abednatanzi, Mandana Gholami, Farshad Ghazalian,
Volume 22, Issue 6 (3-2023)
Abstract
Background: Type 2 diabetes is the most common endocrine disease that can cause tissue damage and apoptosis. The purpose of the present study was to study the changes in the expression of related liver apoptosis genes after High Intensity Training (HIT) and royal jelly in type 2 diabetic rats.
Methods: The statistical sample of the study was 36 male rats that became diabetic after 20 weeks of high-fat diet and injection of 25 ml/kg of STZ. Fasting glucose between 150 and 400 mg/dl was considered as the criteria for type 2 diabetes. Diabetic rats were placed in 4 groups: control, HIIT, Jelly, and HIIT-Jelly. The HIITprotocol was performed 8 weeks, 5 sessions / week with intense 2-minute intervals with 2-8 intervals and 80-90% vo2max and one-minute rest intervals with 50-56% vo2max and Royal Jelly gavage at 100 mg/kg for 5 days / week. Data analysis was done using one-way and two-factor analysis of variance and post hoc test.
Results: The results showed that compared to the control group, HIIT led to a significant decrease in glucose and insulin resistance index. Also, HIIT and royal jelly consumption led to a decrease in Bax gene expression and an increase in Bcl2 gen expression and a decrease in the Bax/Bcl2 ratio in liver cells compared to the control group (P<0.05).
Conclusion: HIIT with royal jelly in diabetic rats led to the reduction and improvement of glycemic index and insulin resistance and appropriate changes in the expression of liver apoptotic genes.
Sedigheh Babaee, Maghsoud Peere, Mohammad Ali Azarbayjani, Maryam Delfan,
Volume 23, Issue 1 (5-2023)
Abstract
Impaired insulin function with exogenous changes is a major cause of heart failure. The purpose of this study was to investigate the effect of four weeks of high intensity interval training with curcumin supplement on the expression of IRS-1 and IRE-1α gene in the Left ventricle of type 2 diabetic rats.
Methods: In the present experimental study, 30 male mice with diabetes were divided into five groups of 6; high intensity interval training (HIIT), High intensity interval Training+Curcumin(S+HIIT), Diabetic control+curcumin(S+DC), Diabetic Control (DC), Normal control (NC). The High intensity interval training protocol was performed five days a week for four weeks. Curcumin gavage at a dose of 100 mg/kg was performed daily. The expression of IRS-1 and IRE-1α were measured by the qReal-TimePCR method, and data were analyzed by one-way ANOVA at the alpha level of 0.05.
Results: IRS-1 gene expression in the S+HIIT group compared to the DC (P=0.003) and S+DC (P=0.001) groups and in the HIIT group compared to the DC (P=0.002), and S groups +DC had a significant decrease (P=0.019). IRE-1α gene was significantly decreased in S+HIIT group compared to DC (P=0.003), S+DC (P=0.001) and HIIT (P=0.008) groups.
Conclusion: It seems that HIIT with curcumin supplement can reduce the process of myocardial apoptosis in diabetic patients by improving metabolic conditions and genetic factors.
Behzad Azadbakht, Abbas Saremi, Mojtaba Khansooz,
Volume 23, Issue 2 (5-2023)
Abstract
Background: The effects of exercise on kidney tissue in withdrawal syndrome are unclear. In this study, the effect of 8 weeks of endurance training on the protein levels of cytochrome C, caspase 8 and caspase 3 in the kidney tissue of diabetic and diabetic rats with withdrawal syndrome was investigated.
Methods: 32 male Wistar rats were used in this experimental study. After the induction of diabetes, the rats were randomly divided into 4 groups of 8. Including: diabetes control (D), morphine diabetes (D.M), diabetes + endurance training (D.ET), morphine diabetes+endurance training (D.M.ET). Then, in addicted groups, the oral method was used for morphine dependence. The training groups performed 8 weeks of endurance training protocol. At the end of the study, all rats were anesthetized, dissected and their kidneys were separated and kept at -70 degrees for further investigations. Protein levels of the indicators of this study were measured by ELISA kits. Data were analyzed using one-way ANOVA and Tukey's post hoc test at a significance level of P≤0.05.
Results: The results of this study showed a significant decrease in caspase 3 protein levels in D.ET (P=0.000), D.M.ET (P=0.000) and cytochrome C levels in D.ET (P=0.000), D.M.ET (P=0.000) groups in Comparison with group D. Also, caspase 8 protein levels in D.M.ET group (P=0.015) compared to D group and D.M.ET group (P=0.038) compared to D.M group showed a significant decrease (P≥0.05).
Conclusion: Endurance training can probably have a positive and protective effect on the reduction of kidney tissue apoptosis in diabetic and diabetic withdrawal syndrome rats.
