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Asra Askari , Amir Rashid Lamir , Nahid Bijeh , Majid Momeni Moghadam ,
Volume 11, Issue 6 (Nov - Dec 2017)

         Background and Objectives: The present study aimed to investigate effects of eight weeks of aquatic exercise and resistance training on plasma neurotrophin-4 (NT-4) levels and NT-4 expression in peripheral blood mononuclear cells (PBMCs) of women with multiple sclerosis (MS).
         Methods: Thirty women with MS were randomly assigned to a resistance-training group, an aquatic exercise group and a control group. After separating plasma and PBMCs from blood samples, level of plasma NT-4 and NT-4 expression was measured after eight weeks of exercise via ELISA and Real-time PCR, respectively.
        Results: The level of plasma NT-4 and NT-4 expression increased significantly following eight weeks of aquatic training and resistance training. 
        Conclusion: Based on the results of the present study, both resistance training and aquatic exercise can increase the level of plasma NT-4 and NT-4 expression in female MS patients. It can be concluded that such trainings could have protective and positive effects on the nervous system of MS patients.
        Keywords: Exercise, Multiple Sclerosis, Neurotrophic Factors, Women.

Babisan Askari , Nahid Bijeh , Amir Rashid Lamir,
Volume 11, Issue 6 (Nov - Dec 2017)

         Background and Objectives: We studied effects of eight weeks of resistance training and IGF-1 injection on serum level of IGF-1, IGFBP-3 and IGF-1/IGFBP-3 ratio in Wistar rats.
          Methods: We randomly divided 28 male Wistar rats into four groups of saline-injected control (C), resistance training+saline injection (RS), resistance training+IGF-1 injection (RI) and IGF-1 injection (II). Resistance training protocol consisted of climbing a ladder (three days/week with 5 reps/3 sets) while carrying a weight suspended from the tail for eight weeks. IGF-1 and saline (1.5 µg/kg/day) were injected before and after exercise sessions. Serum IGF-1, IGFBP-3 and IGF-1/IGFBP-3 ratio and morphology of colorectal tissue were evaluated.
          Results: Serum IGF-1 level and IGF-1/IGFBP-3 ratio decreased in the RS group compared to the other groups (P< 0.05). Rats in the RS group had higher IGFBP-3 level than those in the II and RI groups (P< 0.05). IGF-1 injection had no effect on morphology of colorectal tissue.
          Conclusion: The resistance training reduces IGF-1 and increases IGFBP-3 levels, which might represent a link between resistance training and lower risk of colorectal cancer.
         Keywords: Exercise, Colorectal Neoplasms, Insulin-Like Growth Factor-1, Insulin-Like Growth Factor Binding Protein-3.

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