Related Experiment Video

Updated: Feb 13, 2026

Purification and Transplantation of Myogenic Progenitor Cell Derived Exosomes to Improve Cardiac Function in Duchenne Muscular Dystrophic Mice
08:13

Purification and Transplantation of Myogenic Progenitor Cell Derived Exosomes to Improve Cardiac Function in Duchenne Muscular Dystrophic Mice

Published on: April 10, 2019

6.5K

Modified constraint-induced movement therapy improves functional recovery after ischemic stroke and its impacts on

Beiyao Gao1, Ruidong Ge1, Ying Xing2

  • 1Department of Rehabilitation Medicine, China-Japan Friendship Hospital Beijing, China.

American Journal of Translational Research
|February 12, 2026
PubMed
Abstract

Insights

Modified constraint-induced movement therapy (mCIMT) enhances brain function after stroke by increasing exosomes and microRNA. This therapy promotes neural recovery and improves motor function through these key biological mechanisms.

Area of Science:

  • Neuroscience
  • Regenerative Medicine
  • Biochemistry

Background:

  • Stroke significantly impairs brain function and motor recovery.
  • Exosomes and microRNA are implicated in intercellular communication and neural repair.
  • Constraint-induced movement therapy (CIMT) is a rehabilitation strategy, but its underlying biological mechanisms require further elucidation.

Purpose of the Study:

  • To investigate the effect of modified constraint-induced movement therapy (mCIMT) on exosome and microRNA concentrations in stroke patients and animal models.
  • To explore the correlation between mCIMT-induced changes in exosomes and microRNA with functional recovery after stroke.
  • To determine if exosome administration can replicate the neuroprotective effects of mCIMT.

Main Methods:

  • Analyzed plasma samples from stroke patients undergoing mCIMT versus control groups for cytokines and exosomal microRNAs.
  • Utilized a middle cerebral artery occlusion (MCAO) rat model to assess exosome concentration and microRNA profiles in brain tissue after mCIMT.
  • Administered exosomes derived from mCIMT-treated or control rats into the brains of MCAO rats to evaluate neurobehavioral and histopathological outcomes.

Main Results:

  • mCIMT significantly increased exosome concentration in both stroke patient plasma and rat brain tissue.
  • Exosome size in patients correlated with motor function improvement (Fugl-Meyer Motor Function Assessment).
  • Exosome administration (exo-mCIMT group) in rats led to increased MAP2 and VEGF expression and improved neurobehavioral outcomes.

Conclusions:

  • mCIMT promotes neural recovery post-stroke by enhancing exosome and microRNA activity.
  • Increased exosome and microRNA concentrations play a crucial role in neuronal activity and repair after brain injury.
  • Exosomes represent a potential therapeutic avenue for stroke recovery.
Keywords:
Cerebral ischaemic injuryexosomesmCIMTrehabilitationstroke

More Related Videos

Purification and microRNA Profiling of Exosomes Derived from Blood and Culture Media10:45

Purification and microRNA Profiling of Exosomes Derived from Blood and Culture Media

Published on: June 14, 2013

32.4K
Robotic Mirror Therapy System for Functional Recovery of Hemiplegic Arms10:32

Robotic Mirror Therapy System for Functional Recovery of Hemiplegic Arms

Published on: August 15, 2016

16.0K

Related Concept Videos

MicroRNAs01:22

MicroRNAs

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...
24.3K
MicroRNAs01:22

MicroRNAs

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...
4.1K
The Derivative as a Function01:26

The Derivative as a Function

A derivative quantifies how a function changes in response to variations in its input. It provides a localized rate of change, representing the slope of the tangent line to the function at any given point. When this process is applied systematically across the entire domain of the function, it yields a new function—the derivative function—which encodes the rate of change at every point. This concept is central to calculus and essential for understanding the behavior of dynamic...
166
Derivatives of the Trigonometric Functions01:26

Derivatives of the Trigonometric Functions

The motion of a Ferris wheel rotating at a constant speed provides an intuitive model for understanding trigonometric functions and their derivatives. As a rider moves along the circular path, the vertical height above the ground changes smoothly and periodically over time. This vertical motion can be accurately represented by a sine function, reflecting the repeating pattern of ascent and descent inherent to circular motion.Height and Rate of ChangeIf the rider’s height is modeled by a...
492
Derivatives of Logarithmic Functions01:22

Derivatives of Logarithmic Functions

Logarithmic and Exponential RelationshipA logarithmic function is the inverse of an exponential function. If y = logb x then, it can be rewritten as by = x. This relationship allows for implicit differentiation, making logarithmic functions useful in calculus. Logarithmic scales are widely used to represent data that span multiple orders of magnitude, such as earthquake magnitudes (Richter scale) and sound intensity (decibels).Differentiation of Logarithmic FunctionsTo differentiate y = logb x,...
105
Constraints and Statical Determinacy01:26

Constraints and Statical Determinacy

In structural engineering, the equilibrium of a system is not only determined by its equations of equilibrium but also with the help of constraints. Constraints refer to restrictions on the motion of a system. The proper combinations of constraints can minimize the total number of constraints needed to maintain a system in mechanical equilibrium. When this happens, the system is said to be statically determinate. For such systems, the unknown reaction supports can be estimated using equilibrium...
1.0K