Compensatory recombination phenomena of neurological functions in central dysphagia patients

We speculate that cortical reactions evoked by swallowing activity may be abnormal in patients with central infarction with dysphagia. The present study aimed to detect functional imaging features of cerebral cortex in central dysphagia patients by using blood oxygen level-depen- dent functional mag...

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Published inNeural regeneration research Vol. 10; no. 3; pp. 490 - 497
Main Authors Yuan, Xiao-dong, Zhou, Li-fu, Wang, Shu-juan, Zhao, Yan-sheng, Wang, Xiao-jie, Zhang, Li-li, Wang, Shou-hong, Zhang, Ya-jie, Chen, Li
Format Journal Article
LanguageEnglish
Published India Medknow Publications and Media Pvt. Ltd 01.03.2015
Medknow Publications & Media Pvt. Ltd
Department of Neurology, Afifliated Kailuan General Hospital of Hebei United University, Tangshan, Hebei Province, China%Department of MRI Room, Afifliated Kailuan General Hospital of Hebei United University, Tangshan, Hebei Province, China
Medknow Publications & Media Pvt Ltd
Wolters Kluwer Medknow Publications
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PP2
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Summary:We speculate that cortical reactions evoked by swallowing activity may be abnormal in patients with central infarction with dysphagia. The present study aimed to detect functional imaging features of cerebral cortex in central dysphagia patients by using blood oxygen level-depen- dent functional magnetic resonance imaging techniques. The results showed that when normal controls swallowed, primary motor cortex (BA4), insula (BA13), premotor cortex (BA6/8), supramarginal gyrus (BA40), and anterior cingulate cortex (BA24/32) were activated, and that the size of the activated areas were larger in the left hemisphere compared with the right. In re- current cerebral infarction patients with central dysphagia, BA4, BA13, BA40 aild BA6/8 areas were activated, while the degree of activation in BA24/32 was decreased. Additionally, more areas were activated, including posterior cingulate cortex (BA23/31), visual association cortex (BA18/19), primary auditory cortex (BA41) and parahippocampal cortex (BA36). Somatosen- sory association cortex (BA7) and left cerebellum in patients with recurrent cerebral infarction with central dysphagia were also activated. Experimental findings suggest that the cerebral cortex has obvious hemisphere lateralization in response to swallowing, and patients with recurrent cerebral infarction with central dysphagia show compensatory recombination phenomena of neurological functions. In rehabilitative treatment, using the favorite food of patients can stimu- late swallowing through visual, auditory, and other nerve conduction pathways, thus promoting compensatory recombination of the central cortex functions.
Bibliography:nerve regeneration; blood oxygen level-dependent functional magnetic resonance imag-ing; cerebral ischemia; dysphagia; function restructuring; cerebral cortex; neural regeneration
We speculate that cortical reactions evoked by swallowing activity may be abnormal in patients with central infarction with dysphagia. The present study aimed to detect functional imaging features of cerebral cortex in central dysphagia patients by using blood oxygen level-depen- dent functional magnetic resonance imaging techniques. The results showed that when normal controls swallowed, primary motor cortex (BA4), insula (BA13), premotor cortex (BA6/8), supramarginal gyrus (BA40), and anterior cingulate cortex (BA24/32) were activated, and that the size of the activated areas were larger in the left hemisphere compared with the right. In re- current cerebral infarction patients with central dysphagia, BA4, BA13, BA40 aild BA6/8 areas were activated, while the degree of activation in BA24/32 was decreased. Additionally, more areas were activated, including posterior cingulate cortex (BA23/31), visual association cortex (BA18/19), primary auditory cortex (BA41) and parahippocampal cortex (BA36). Somatosen- sory association cortex (BA7) and left cerebellum in patients with recurrent cerebral infarction with central dysphagia were also activated. Experimental findings suggest that the cerebral cortex has obvious hemisphere lateralization in response to swallowing, and patients with recurrent cerebral infarction with central dysphagia show compensatory recombination phenomena of neurological functions. In rehabilitative treatment, using the favorite food of patients can stimu- late swallowing through visual, auditory, and other nerve conduction pathways, thus promoting compensatory recombination of the central cortex functions.
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Author contributions: XDY was responsible for the design, organization and coordination of the study, involved in data processing and analysis, responsible for the results analysis and writing the manuscript. LFZ was involved in the design of the study and responsible for the experimental operations, data processing, results analysis and writing the manuscript. SJW was responsible for the choice of subjects, involved in the design of the study, results analysis and writing the manuscript. YSZ, SHW and YJZ were involved in the experimental operations, data processing and results analysis. XJW and LC were involved in the choice of subjects and data processing. LLZ was involved in results analysis and writing the manuscript. All authors approved the final version of the paper.
ISSN:1673-5374
1876-7958
DOI:10.4103/1673-5374.153701