Moderate aerobic exercise training decreases middle-aged induced pathologic cardiac hypertrophy by improving Klotho expression, MAPK signaling pathway and oxidative stress status in Wistar rats

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BAGHAIEE BEHROUZ; KARIMI POURAN; SIAHKOUHIAN MAREFAT; Pescatello Linda S.

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Journal Paper

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Journal: Iranian Journal of Basic Medical Sciences Year:2018 | Volume:21 | Issue:9 Page(s): 911-919

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Title

Moderate aerobic exercise training decreases middle-aged induced pathologic cardiac hypertrophy by improving Klotho expression, MAPK signaling pathway and oxidative stress status in Wistar rats

Author(s)

BAGHAIEE BEHROUZ | KARIMI POURAN | SIAHKOUHIAN MAREFAT | Pescatello Linda S. | Issue Writer Certificate

Keywords

Exercise

Fibrosis

H2O2

Left ventricular hypertrophy

Klotho

Mitogen-activated proteinkinase

Abstract

Objective(s): This study aimed to investigate the effect of aerobic training on serum levels of Klotho, cardiac tissue levels of H2O2 and phosphorylation of ERK1/2 and P38 as well as left ventricular internal diameter (LVID), the left ventricle wall thickness (LVWT) and Fibrosis in middle-aged rats. Materials and Methods: Forty wistar rats, including young rats (n=10, 4 month-old) and middle-aged rats (n=30, 13-15 months-old) were enrolled in this experimental study. The all young and 10 middle-aged rats were sacrificed (randomly) under deep anesthesia without any Exercise training as normal young control and normal middle-aged control respectively. The remaining 20 middle-aged rats participated in 4 (n=10) or 8-week (n=10) aerobic Exercise training. Results: There were significant differences in the plasmatic Klotho levels and the heart tissue levels of phosphorylated-ERK1/2 (p-ERK1/2), P-P38 and H2O2, LVWT, LVID and Fibrosis between young and middle-aged rats (P=0. 01). Plasmatic Klotho level was significantly increased after eight weeks training (P=0. 011). Also, p-ERK1/2 was significantly decreased after eight weeks and p-P38 was significantly decreased in the fourth (P=0. 01) and eight weeks of training (P=0. 01). A similar decrease was reported for aging-induced H2O2 in the fourth (P=0. 016) and eighth weeks (P=0. 001). LVID was significantly increased in eight weeks, but LVWT and Fibrosis was significantly reduced in the eighth week (P=0. 011, P=0. 028, P=0. 001 respectively). Conclusion: Moderate aerobic training attenuates aging-induced pathological cardiac hypertrophy at least partially by restoring the Klotho levels, attenuating oxidative stress, and reduction in the phosphorylation of ERK1/2, P38 and Fibrosis.

Cites

Effect of Resistance Exercise and Vitamin C Intake on Expression of Telomerase Reverse Transcriptase and Telomere Repeat Binding Factor-2 Genes and the Diameter and Number of Myofibrils in Old Rats

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APA: Copy

BAGHAIEE, BEHROUZ, KARIMI, POURAN, SIAHKOUHIAN, MAREFAT, & Pescatello, Linda S.. (2018). Moderate aerobic exercise training decreases middle-aged induced pathologic cardiac hypertrophy by improving Klotho expression, MAPK signaling pathway and oxidative stress status in Wistar rats. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES, 21(9), 911-919. SID. https://sid.ir/paper/725798/en

Vancouver: Copy

BAGHAIEE BEHROUZ, KARIMI POURAN, SIAHKOUHIAN MAREFAT, Pescatello Linda S.. Moderate aerobic exercise training decreases middle-aged induced pathologic cardiac hypertrophy by improving Klotho expression, MAPK signaling pathway and oxidative stress status in Wistar rats. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES[Internet]. 2018;21(9):911-919. Available from: https://sid.ir/paper/725798/en

IEEE: Copy

BEHROUZ BAGHAIEE, POURAN KARIMI, MAREFAT SIAHKOUHIAN, and Linda S. Pescatello, “Moderate aerobic exercise training decreases middle-aged induced pathologic cardiac hypertrophy by improving Klotho expression, MAPK signaling pathway and oxidative stress status in Wistar rats,” IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES, vol. 21, no. 9, pp. 911–919, 2018, [Online]. Available: https://sid.ir/paper/725798/en

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