Background: Studies have shown that Alzheimer's disease (AD) causes neuromuscular dysfunction by damaging different parts of the central nervous system and inflammation that can increase C-reactive protein (CRP) levels. Nevertheless, the beneficial effects of endurance training (ET) and royal jelly (RJ) on inflammation and reduction of CRP are not fully elucidated. Objectives: The aim of this research was to investigate the effect of ET with RJ on gene expression of CRP in muscle tissues of rats with AD. Methods: In this experimental study, 24 rats with AD (8 mg/kg trimethyltin injection) were randomly divided into four groups of 1-ET, 2-ET + [RJ (100 mg/kg)], 3-RJ and 4-control. Also, six healthy rats were placed in the healthy control group to investigate the effects of AD induction on CRP gene expression. Endurance training groups performed endurance training with a speed of 15 -20 m/min, 5 sessions per week for eight weeks. Results: Our findings showed ET and RJ significantly decreased CRP gene expression in muscle tissues of rats with AD (P = 0.001) as well as the interaction of ET and RJ was significant in reducing CRP gene expression in muscle tissues of rats with AD (P = 0.001).Conclusions: It appears that ET and RJ have interactive effects on the reduction of CRP in muscle tissues of rats with AD.

Introduction: IGF-1 is a polypeptide hormone that plays a vital role in the development and regeneration of skeletal muscles. IGF-1 activates anabolic pathways such as PI3K and IRS-1/2 to activate a series of intracellular anabolic signals. The purpose of this study was to investigate the effect of 8 weeks resistance training on IGF1, PI3K and insulin sensitivity in neural muscle in type 2 diabetic rats. Methods: In this experimental study, 14 male Wistar mice aged 8 to 10 weeks and induction of type 2 diabetes (type 2 diabetes was induced by intraperitoneal injection of nicotinamide and STZ in diabetic groups) and were divided into two groups of resistance training and control groups. The mice in the control group did not exercise during the study, while the resistance group performed 8 weeks of training for 5 sessions per week. Resistance exercises in each session were performed in the form of 10 repetitions with 90-second rest intervals in the form of climbing a 26-step ladder to a height of one meter with a vertical slope of 85%, and weight was applied to the base of the rat's tail. 48 hours after the last training session, blood samples were taken from the heart and neural muscle tissue was extracted. Real Time-PCR method was used to determine the genes and one-way ANOVA test was used to compare the variables. All statistical studies were done using SPSS version 16 software. Results: The results of this study showed that expression of IGF-1 and PI3K in the duodenal axis of diabetic rats in resistance training group was significantly higher than that of the control group (P = 0.001) (P = 0.11). Serum insulin sensitivity in diabetic rats was not significantly different in diabetic rats compared to the diabetic rats (P=0.778). Conclusion: It seems that eight weeks of resistance training can be a strong stimulus on IGF-1 and PI3K gene expression and no change in insulin sensitivity in neural muscle in type 2 diabetic rats.