Mahtab Moshref Javadi, Mohammad Abdolahad, Neda Soleimani,
Volume 9, Issue 2 (5-2021)
Abstract
Background and Objective: Cancer immunotherapy combined with other common treatments can be an effective way to overcome cancerous cells. The purpose of this study was to investigate the effect of Freund Adjuvant on breast cancer in the BALB/c model of mice.
Material and Methods: Twenty female inbred 6–7-week-old- BALB/c mice were randomly divided into two groups of Test and Control, each containing 10 mice. Breast cancer was induced by injecting106 4T1 cells into the right flank region of mice. After the tumors were palpable; animals were immunized three times by intraperitoneal (IP) injection of Freund adjuvant in the test group and phosphate buffered saline (PBS) in the control group at same condition. During the study; tumor growth, body weight, and survival percentages in mice were measured by using the caliper method, and mortalities were recorded. Results were tabulated using Excel, and Graphpad Prism Version 8. Data were analyzed using One-Way ANOVA and T-test and the significance level for statistical tests was considered p≤0.05.
Results: The results showed that tumor mice given Freund Adjuvant had a significant reduction in tumor size compared to the control group (P=0.01) and no significant weight difference was observed between the two groups (P=0.4). Furthermore, Kaplan Meier showed that the survival of the mice in the Freund Adjuvant group was significantly increased compared to the control group (P=0.009).
Conclusion: This study showed that Freund Adjuvant may play an important role in improving the function of the immune system for cancer immunotherapy.
Azar Mohammadi, Abdolhossein Taheri Kalani, Mahnaz Omidi,
Volume 12, Issue 1 (10-2024)
Abstract
Background: When metabolic demands increase due to an obesity-induced high-fat diet (HFD), mitochondrial function is impaired, production can increase, and oxidative stress occurs. This type of stress has been shown to play a key role in various pathological conditions such as heart disease, hypertension, diabetes, chronic kidney disease, and cancers. This study aims to evaluate the impact of HFD and resistance training (RT) on oxidative stress biomarkers and cardiac health in rats.
Methods: In this experimental study, 21 male Wistar rats (weighing 200-300 g) were randomly and equally assigned into the following groups: control (CTRL), HFD, and HFD+ RT. Animals in the HFD groups received a high-fat diet for 23 weeks. During the treatments, rats in the HFD+ RT group, besides receiving a high-fat diet, performed the progressive RT protocol three times per week with 30- 100% of their body mass in the last eight weeks. At the end of the treatments, superoxide dismutase (SOD), glutathione peroxidase (GPX), total antioxidant capacity (TAC), and malondialdehyde (MDA) levels in cardiac tissue were measured by colorimetric method. The data were analyzed by one-way analysis of variance (ANOVA) and Tukey’s post hoc test at a significant level of P<0.05.
Results: HFD did not alter levels of SOD, GPX, TAC, or MDA in cardiac tissue. Cardiac SOD (P=0.021), GPX (P=0.024), and TAC (P=0.041) levels in the HFD+ RT increased significantly compared to the HFD group, but there was no significant difference in cardiac MDA levels between the three groups (P=0.438).
Conclusion: RT seems to improve cardiac tissue oxidative stress adaptations in an animal model fed with an HFD.
