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Related Experiment Video

Updated: Feb 7, 2026

Motor Dual-Tasks for Gait Analysis and Evaluation in Post-Stroke Patients
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The Serum BDNF Level Offers Minimum Predictive Value for Motor Function Recovery After Stroke.

Wenshu Luo1,2, Tao Liu1,3, Shanshan Li1,4

  • 1Stroke Biological Recovery Laboratory, Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, the teaching affiliate of Harvard Medical School, Charlestown, MA, 02129, USA.

Translational Stroke Research
|August 4, 2018
PubMed
Summary
This summary is machine-generated.

Serum Brain-Derived Neurotrophic Factor (BDNF) shows minimal predictive value for motor function recovery after stroke. While statistically correlated with outcomes, BDNF levels may relate to white matter integrity (Fractional Anisotropy) during rehabilitation.

Keywords:
BDNF (brain-derived neurotrophic factor)FA (fractional anisotropy)FIM (functional independence measure)Stroke rehabilitation

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Area of Science:

  • Neuroscience
  • Biochemistry
  • Rehabilitation Medicine

Background:

  • Brain-Derived Neurotrophic Factor (BDNF) is crucial for neuroplasticity and neurogenesis after brain injury.
  • The prognostic significance of BDNF for short-term stroke outcomes remains debated.
  • Understanding factors influencing post-stroke recovery is vital for effective rehabilitation strategies.

Purpose of the Study:

  • To investigate the relationship between serum BDNF levels, Fractional Anisotropy (FA), and functional outcomes in stroke patients undergoing rehabilitation.
  • To assess the predictive value of serum BDNF for motor function recovery during the post-acute phase.

Main Methods:

  • Serum BDNF levels were measured upon admission to inpatient rehabilitation.
  • Functional Independence Measure (FIM) motor and total scores were assessed at admission and discharge.
  • Diffusion tensor imaging was used to measure FA, with correlations analyzed against BDNF levels and FIM scores.
  • Receiver Operating Characteristic (ROC) analysis evaluated BDNF's predictive accuracy for motor improvement.

Main Results:

  • Serum BDNF levels showed a weak statistical correlation with FIM motor and total scores at discharge (p<0.01).
  • BDNF demonstrated low accuracy in predicting motor function improvement (Area Under Curve = 0.581).
  • A significant correlation between serum BDNF and FA was observed in patients with higher motor function recovery, but not in those with lower recovery.

Conclusions:

  • Serum BDNF levels alone have limited predictive power for motor function recovery in post-acute stroke rehabilitation.
  • Serum BDNF may be associated with white matter integrity, as indicated by its correlation with FA in certain patient groups.
  • Further research is needed to elucidate the role of BDNF in stroke recovery and its relationship with neuroimaging markers.