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Introduction: Performing aerobic exercise programs during pregnancy will have positive effects on various characteristics related to the health of mother and children. Therefore, the aim of this study is to investigate the effect of aerobic activity of the mother during pregnancy on the levels of leptin hormone in the blood serum of adult rats.
Methods: This research is of an experimental type with a post-test design with a control group, including 20 female rats with an average age of 8 weeks, randomly divided into two training (T) (221 ± 8.9 grams) and control (C). (223±12.8 grams) groups. Pregnancy sports activity was performed immediately after the observation of vaginal plaque for 21 days and for 5 sessions per week with moderate intensity on the treadmill, and it was terminated 2 days before delivery. The comparison of leptin hormone level in two control and exercise groups was analyzed using independent t-test in 8-week-old mice at a significant level of P≥0.05.
Ethical considerations: This study was an experimental and interventional type, and the ethical standards in maintaining and conducting experiments are in accordance with the ethics code of this study (IR.QUMS.REC.1396.288) which has been approved by the Ethics Committee of the Faculty of Basic Sciences of Qazvin University of Medical Sciences.
Results: The amount of leptin hormone (p=0.002) in adult rats whose mothers had exercised during pregnancy was significantly lower than the control group, the weight of food consumed by the mother in the last weeks of pregnancy in the group training was less than the control group and the weight of the adult rats in the training group was less than the control group.
Conclusions: It seems that sports activity during pregnancy can have positive effects on weight control and prevention of obesity in adult children.
 

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Introduction: Considering the destructive effects of the prevalence of infectious diseases such as Covid-19 and the resulting social crisis on physical and mental health, a leading study was conducted to investigate Pattern of structural relationships of Covid-19 epidemic anxiety based on self-control mediated by emotional resilience.
Methods: The method of this research was descriptive-correlational and the statistical population of the present study included all students of Mohaghegh University in the academic year 2021-2022. Corona, resilience, completed the self-control questionnaire. Pearson correlation coefficient tests and structural equation modeling using Spss.25 and Lisrel 8.8 software were used to analyze the data.
Ethic: This research has been approved by the ethics code IR.ARUMS.REC.1400.045 in the ethics committee of Ardabil University of Medical Sciences.
Results: The results showed that coronary anxiety was negatively associated with self-control and emotional resilience. Emotional resilience is also positively associated with self-control. Model fit indices also confirmed the path of self-control over coronary anxiety mediated by emotional resilience.
Conclusions: According to the results of the current study, psychiatric clinics, counseling centers and health networks can use the findings of the research in the field of mental health and to face the covid-19 epidemic.

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Introduction: Cisplatin, a widely used chemotherapy agent, offers therapeutic benefits for cancer treatment but often leads to adverse effects on neurogenesis and oxidative stress. On the other hand, physical activity has been proposed as a potential strategy to counteract these side effects. Therefore, the aim of the present study was to investigate the effect of an endurance training period on oxidative stress markers in the brain tissue of rats induced with cisplatin.
Methods: In this study, 32 male rats with an average weight of 220 grams were divided into four groups: healthy control, cisplatin-injected control, endurance training, and cisplatin + endurance training. After 8 weeks of endurance training, the rats were dissected, and blood serum was separated to measure oxidant and antioxidant factors. Additionally, the brain was removed under sterile conditions for the examination of the desired markers. Data were analyzed using one-way ANOVA.
Results: The results showed that cisplatin significantly decreased MDA and significantly increased TAC and CAT in the cisplatin-receiving control group. On the other hand, 8 weeks of endurance training significantly decreased MDA and significantly increased TAC and CAT. Moreover, no significant change was observed in serum SOD levels. In brain tissue, MDA levels significantly increased, and TAC, CAT, and SOD levels significantly decreased in the cisplatin-receiving group. Conversely, 8 weeks of endurance training reduced MDA levels and increased TAC, CAT, and SOD levels.
Conclusions: Based on the findings of the present study, it appears that physical exercise has protective effects against cisplatin-induced oxidative stress in the brain, which may be attributed to its antioxidant capabilities

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Introduction: Internet infidelity is one of the most significant threats to family cohesion in recent years. Identifying the factors associated with marital infidelity is crucial as it can help reduce the risk of family breakdown. The aim of this study was to examine the role of power-seeking, independence, and conscientiousness in predicting internet infidelity among employed married women.
Methods: This study was conducted using Structural Equation Modeling (SEM). The research design was descriptive-correlational, and the statistical population comprised all employed married women working in offices, healthcare centers, and educational institutions in Urmia County during the years 2023–2024. The sample size was determined to be 250 participants, selected through purposive random sampling. Specifically, among the employed married women, those who met the inclusion criteria (such as formal or contractual employment and frequent internet use) were randomly chosen from the pool of volunteers. The research instruments included questionnaires measuring power-seeking, independence, conscientiousness, and internet infidelity.
Results: Data were analyzed using structural equation modeling assistance. Evaluation of the hypothetical model using fit indices indicated that the hypothetical model fit well with the measurement model. The results showed that power-seeking and independence had a positive and significant relationship with internet infidelity, while conscientiousness had a negative impact on this phenomenon. Notably, power-seeking was identified as a stronger predictor of internet infidelity with a beta coefficient of 0.16.
Conclusions: The findings indicated that power-seeking and independence could be suitable predictors of internet infidelity among employed married women, serving as valid indicators for identifying this phenomenon.