Related Experiment Video
Updated: Sep 18, 2025
08:22
Tissue-specific miRNA Expression Profiling in Mouse Heart Sections Using In Situ Hybridization
Published on: September 15, 2018
8.2K
Effect of Exercise on Regulating miRNA Expression in Brain Health and Diseases
Jian Zhang1, Fengmei Gu1, Anand Thirupathi2
1College of Physical Education, Chuzhou University, Chuzhou 239000, China.
Biology
|June 26, 2025
Summary
Physical exercise alters microRNAs (miRNAs), small molecules that regulate gene expression. Understanding these exercise-induced miRNA changes offers therapeutic potential for neurodegenerative diseases.
Area of Science:
- Epigenetics and Molecular Biology
- Neuroscience
- Exercise Physiology
Background:
- Physical exercise triggers epigenetic changes, notably affecting microRNA (miRNA) expression.
- miRNAs play a crucial role in regulating gene expression, impacting exercise performance and neurological function.
- Dysregulated miRNA expression is linked to neurodegenerative diseases, affecting pathways like TGF-β, FOXO, and NOTCH.
Purpose of the Study:
- To review the impact of exercise-mediated miRNA expression on brain pathophysiology.
- To explore the potential of exercise as a therapeutic strategy for neurodegenerative diseases by targeting miRNA mechanisms.
- To highlight the need for further research into exercise modality-specific effects on brain miRNA expression.
Main Methods:
- Literature review of studies investigating exercise, miRNA expression, and neurodegenerative diseases.
- Analysis of molecular pathways influenced by exercise-induced miRNAs, including TGF-β, FOXO, and NOTCH.
- Synthesis of current understanding regarding the relationship between exercise type, intensity, duration, and brain miRNA profiles.
Main Results:
- Exercise significantly modifies miRNA expression, influencing cellular signaling pathways relevant to neurodegeneration.
- Specific miRNAs targeted by exercise can modulate pathways implicated in the progression of neurological disorders.
- The precise relationship between exercise characteristics and brain cell miRNA expression remains incompletely understood.
Conclusions:
- Exercise-induced epigenetic modifications, particularly via miRNAs, present a promising avenue for neurodegenerative disease therapeutics.
- Targeting exercise-mediated miRNA regulation could offer novel strategies to combat neurological decline.
- Further research is essential to elucidate the nuanced effects of different exercise modalities on brain miRNA expression and function.
Related Concept Videos
01:22MicroRNAs
3.1K
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...
3.1K
01:20Exercise and Cardiovascular Response
1.1K
Exercise significantly impacts cardiovascular response, which is crucial for understanding patient health and designing effective treatment plans.
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
1.1K
01:37Neural Regulation
40.4K
Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.
40.4K
01:23Regulation of Expression at Multiple Steps
1.0K
The gene expression in cells is regulated at different stages: (i) transcription, (ii) RNA processing, (iii) RNA localization, and (iv) translation. Transcriptional regulation is mediated by regulatory proteins such as transcription factors, activators, or repressors—these control gene expression by initiating or inhibiting the transcription of genes. Once a precursor or pre-mRNA is produced, it undergoes post-transcriptional modification, including 5' capping, splicing, and the...
1.0K
01:25Stress Prevention and Stress Management Techniques III
114
Regular exercise and meditation serve as essential tools in managing stress and promoting physical and mental well-being.
The Role of Exercise in Stress Management
Regular physical activity is essential for reducing stress and promoting cardiovascular health. Exercise strengthens the heart, enhances blood flow, keeps blood vessels flexible, and helps lower blood pressure, all of which reduce the body's stress response. Research shows that adults who exercise regularly have nearly half the...
The Role of Exercise in Stress Management
Regular physical activity is essential for reducing stress and promoting cardiovascular health. Exercise strengthens the heart, enhances blood flow, keeps blood vessels flexible, and helps lower blood pressure, all of which reduce the body's stress response. Research shows that adults who exercise regularly have nearly half the...
114
02:24Regulation of Expression Occurs at Multiple Steps
23.5K
Gene expression can be regulated at almost every step from gene to protein. Transcription is the step that is most commonly regulated. This involves the binding of proteins to short regulatory sequences on the DNA. This association can either promote or inhibit the transcription of a gene associated with the respective sequence.
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
23.5K