جستجوی مقالات مرتبط با کلیدواژه "caspase3" در نشریات گروه "پزشکی"

Apoptosis is organized cellular death, induced by various physiological and pathological factors. Therefore, the purpose of this study is to investigate the effect of continuous training on rate of Caspase3, BAX and BCL-2 proteins in rats vascular by induced poisoning due to various doses of hydrogen peroxide.

40 mature male wistar rats were randomly assigned into 5 groups including 8 rats in each group. The groups were injected by: 1-Intraperitoneal injection of 1mM H2O2, group (H1), 2- Intraperitoneal injection of 2mM H2O2, group(H2), 3-Intraperitoneal injection of 1mM H2O2 with regular exercise, group (H1E), 4- Intraperitoneal injection of 2mM H2O2 with regular exercise, group (H2E), and 5-control group(C).The training groups performed regular training on the treadmill daily for 8 weeks, all of rats after the anaesthesia knocked out and the BAX, BCL-2 and Caspas3 proteins ratio were determined and measured by ELISA technic. The ANOVA Two Way test was used to determine the effect of each of the independent variables on the indicators. Also, the ANOVA One Way test of the Bonfroni follow-up test was used to examine the intergroup of each of the variables. And significance was considered as P≤ 00.05.

Continuous training in the rats showed that the amount of BAX protein did not decrease significantly compared to the treatment group with 1 and 2 mM of hydrogen peroxide. Exercise alone or with injections of 1 and 2 mM of hydrogen peroxide, increased the amount of protein BCL-2, which was not significant and decreased Caspase3, BAX, and BAX / BCL-2 ratios in both groups receiving one and two milliliters of hydrogen peroxide, but only changes in Caspase-3 (P = 0.014) and ratio BAX / BCL-2 (p = 0.0002) was significant in groups receiving 2 mM of hydrogen peroxide (P ≤ 0.05).

Continuous exercises are likely to reduce the apoptosis of endothelial cells by reducing Caspase3, BAX / BCL-2 ratio and increasing BCL-2 which is likely to prevent vascular tissu damage.

The present study was conducted to investigate the effect of aerobic training with resveratrol supplementation on regulatory and executive factors of cardiomyocytes apoptosis in streptozocin diabetic male rats.
In an experimental study, 50 male rats were randomly divided into 5 groups of 10 healthy controls, diabetics, resveratrol supplements, aerobic training and complementary resveratrol + aerobic training. Diabetes was induced by single injection of streptozotocin (50 ml/kg). Training was done 5 days per week for 8 weeks. They did exercise on the treadmill at 15m/min, 5 min and gradient of 15%. At the end of the course, all animals were completely and similarly treated and 48 hours after the last training session, anesthetized and sacrificed. After cardiac out and homogenization, the concentration of BAX, Bcl-2 and Caspase3 was measured individually.
After induction of diabetes, the concentration of BAX and Caspase-3 significantly increased compared with healthy controls, while BCL-2 concentration decreased significantly. However, only exercise interaction and resveratrol had significant effect on BAX concentration and had no significant effect on Caspase-3 levels. Each exercise and resveratrol separately increased BCL-2 concentration, but their interactive effect was not significant.
Aerobic exercise and resveratrol have a beneficial effect on cardiac apoptosis in inducing diabetes, but their interaction is not significant in the process of cardiac apoptosis. Of course, aerobic exercise and resveratrol could be used as complementary therapies for myocardial protection against invasive apoptosis induced by diabetes.

Cardiac apoptosisplays an important role in myocardial diseases. Current evidence suggests that exercise training may modify some apoptosis-related signaling in myocardium. This study aimedto investigate the effect of aerobic training on cardiac Bax, Bcl2 and caspase-3 inmale rats.

In this experimental study, Sixteen Wistar male rats 10 weeks old with 299.74±19.32 g weight were randomly classified into control and training groups. Training groups have performed an aerobic running program (at 10-18 m/min, 10-40 min/day, and 5 days/week) on a motor-driven treadmill for six weeks.Forty eight hours after the last training session, rats were sacrificed; hearts were excised and immediately frozen in liquid nitrogen and stored at -80 °C.Bax, Bcl2 and caspase3 protein expression were evaluated by ELISA and western blot. Data were analyzed using Independent t-test and ANCOVA at P<0.05.

The results showed that six weeks aerobic training significantly decreased heart Bax in rats (P=0.045). Also heart Bcl2 (P=0.003) and caspase-3 (P=0.040) were significantly increased in comparison to the training group.

Moderate-intensity aerobic exercise seems to modify some factors affecting the apoptosis of the heart tissue of male rats.

Breast cancer is regarded as one of the most common female cancers in the world. Many efforts have been made to treat the breast cancer, among which surgery, radiation, and chemotherapy can be mentioned. There is an increasing interest regarding using herbal preparations as a promising source of new anti-cancer drugs because of their safety profile and efficient pharmaceutical potentials. Since citrullus colocynthis proposes some cytotoxic effects against cancer, the present study aimed to explore the effect of hydro alcoholic extract of C. colocynthis fruit on the viability and expression level of Caspase-3 in MCF-7 cell line. In this laboratory study, the MCF-7 breast cancer cells were treated by different concentrations of Citrullus Colocynthis ethanol extract for 24, 48 and 72 h. The extract effect on cell viability was assessed by trypan blue staining. The RNA extraction was performed, and after the construction of cDNA, expression of Caspase 3 was analyzed via Real-Time PCR. The obtained results revealed a noticeable dose and time dependent reduction in viability of C. colocynthis in the treatment group compared to the control samples. Moreover Real-Time PCR results demonstrated that the expression of Caspase3 gene at 48 and 72 hours after extract treatment significantly increased compared to the control cells. It can be concluded that citrullus colocynthis fruit extract can destroy cancer MCF-7 cells, which is resulted from an increase in caspase 3 gene expression.