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Journal : The Indonesian Biomedical Journal

Combination of Aerobic Exercise and Continuous Environmental Enrichment Improves Adult Male Rats’ Spatial Memory: Study on Hippocampal Insulin Like Growth Factor 1 (IGF-1) and Fibroblast Growth Factor 2 (FGF-2) Expression Sophie Yolanda; Sri Redjeki; Trinovita Andraini; Dewi Irawati Soeria Santoso; Nurhadi Ibrahim; Rena Mailani
The Indonesian Biomedical Journal Vol 11, No 2 (2019)
Publisher : The Prodia Education and Research Institute (PERI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18585/inabj.v11i2.731

Abstract

BACKGROUND: Memory declines with the progression of age through the neurodegeneration process. Aerobic exercise and environmental enrichment can delay neurodegeneration by improving neuroplasticity via expression of insulin like growth factor 1 (IGF-1), fibroblast growth factor 2 (FGF-2) and other proteins. Combination treatment of aerobic exercise and continuous environmental enrichment and their effect on the expression of IGF-1 and FGF-2 which were expected to improve memory function has not been studied previously. Thus, this study aimed to observe it.METHODS: This is an experimental research using 24 male Wistar rats (Rattus norvegicus, 300-400 g, age 7-8 months) divided randomly into 4 groups: control (C), aerobic exercise (A), continuous (EE), and combination of aerobic exercise and continuous environmental enrichment (A-EE). At the end of an 8-week treatment, rats were sacrificed, and an enzyme-linked immunosorbent assay (ELISA) examination was performed to assess hippocampal IGF-1 and FGF-2 levels.RESULTS: In the 8th week, A-EE group showed the best improvement in rats’ spatial memory (47.84±10.6 %) followed by EE group (45.03±4.1 %), A group (38.61±3.8 %), and C group (22.76±7.12 %). However, A-EE group’s hippocampal IGF-1 (16.21±7.56 ng/mg protein) and FGF-2 (1.29±0.57 ng/mg protein) expression were not higher than other groups.CONCLUSION: Improvement in memory function in the combination group is a result of induction of various growth factors’ expression in the hippocampus, including IGF-1 and FGF-2, but the primary pathway of memory function improvement may be from other growth factors.KEYWORDS: spatial memory, aerobic exercise, environmental enrichment, hippocampus, IGF-1, FGF-2
Effect of the High-Intensity Interval Training on BDNF Level in Ischemic Stroke Rat Model on the Recovery of Motor Function Yani, Sri; Harris, Salim; Jusuf, Ahmad Aulia; Goenarjo, Roman; Makkiyah, Feda Anisah; Sabita, Rifqi; Ibrahim, Nurhadi
The Indonesian Biomedical Journal Vol 16, No 2 (2024)
Publisher : The Prodia Education and Research Institute (PERI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18585/inabj.v16i2.2911

Abstract

BACKGROUND: Stroke is one of the major causes of disability in the world. High-intensity interval training (HIIT) is known as a novel treatment to promote stroke recovery. However, the results differ in their effects on irisin, which is a regulator of brain-delivered neurotrophic factor (BDNF). Therefore, this study was conducted to investigate the effect of HIIT on BDNF and irisin levels in a rat model of ischemic stroke with middle cerebral artery occlusion (MCAO) induction on recovery motor function.METHODS: Rats were categorized into 4 groups: sham, MCAO, MCAO+moderate-intensity interval training (MIIT), and MCAO+HIIT. MCAO induction was performed to create the ischemic stroke rats model. The motor function was assessed through rotarod and footprint tests. Blood samples were obtained 6 days before MCAO and 14 days after MCAO to examine BDNF and irisin levels with enzyme-linked immunosorbent assay (ELISA). Brain tissue samples were collected 14 days after MCAO for histopathological examination of cortical tissue with hematoxylin-eosin (HE) staining.RESULTS: Rats in the MCAO+HIIT group exhibited an enhanced ability to walk on the rotarod (p=0.016). The stride-length hind paw right in the MCAO+HIIT group demonstrated a noteworthy increase in comparison to baseline value (p=0.036), and the stride-length fore paw right showed a significant increase in both the MCAO+HIIT (p=0.036) and MCAO groups (p=0.034). BDNF significantly improved in the MCAO+MIIT (p=0.043) and MCAO+HIIT groups (p=0.018). The irisin level only showed a significant enhancement in the MCAO+HIIT group (p=0.018).CONCLUSION: HIIT increased motor function, while BDNF level increased with HIIT and MIIT intervention. This preclinical research is useful for supporting the recovery of stroke patients by HIIT intervention.KEYWORDS: BDNF, HIIT, MIIT, irisin, ischemic stroke, MCAO