Document Detail


Involvement of pontine transverse and longitudinal fibers in multiple system atrophy: A tractography-based study.
MedLine Citation:
PMID:  21310434     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVE: Pathological studies showed both pontine transverse (cortico-ponto-cerebellar) and longitudinal (corticospinal) fibers degenerate in MSA. The objective was to investigate the association between the development of cross sign, degenerations of pontine fibers, and the frequency of pyramidal signs in MSA. METHODS: Patients with MSA (n=26) and healthy subjects (n=27) were enrolled in this study. Whole pontine transverse and longitudinal fibers were individually traced by diffusion tensor tractography. FA was calculated along each entire tractography. Cross sign was graded as: 0, no cross sign; 1, anterior-posterior line only; and 2, complete cross sign. T2-hyperintense MCPs was graded as: 0, no change; 1, slight signal change; and 2, severe signal change. FA of pontine fibers in MSA patients and that in healthy subjects was statistically evaluated by ANOVA with an overall statistical significance level of 0.05. The frequency of pyramidal signs in MSA was compared between each cross and MCP grade. RESULTS: FA of pontine transverse fibers in MSA patients decreased with the development of cross sign. FA of Cross 2 was significantly lower than that of healthy subjects (p=0.003). As regards pontine longitudinal fibers, FA decreased when cross sign was completed. The frequency of pyramidal signs in MCP 2 and 1 was higher than that in MCP 0. CONCLUSION: Pontine transverse fibers degenerate as cross sign develop, and degenerations of pontine longitudinal fibers begin, or even accelerate when cross sign becomes apparent. Pyramidal signs are frequently present when T2-hyperintense MCPs are clearly observed.
Authors:
Takahiro Makino; Shoichi Ito; Satoshi Kuwabara
Related Documents :
9010404 - Impairment and recovery of left motor function in patients with right hemiplegia.
20582954 - Yield of systematic transcranial doppler in patients with transient ischemic attack.
10673174 - Time course of sleep-related breathing disorders in first-ever stroke or transient isch...
10210874 - Risk factors of stroke after percutaneous transluminal coronary angioplasty.
17523704 - Once-daily moxifloxacin therapy for community-acquired pneumonia in general practice : ...
24748744 - Significance of impaired serum gelatinases activities in metabolic syndrome.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-2-8
Journal Detail:
Title:  Journal of the neurological sciences     Volume:  -     ISSN:  1878-5883     ISO Abbreviation:  -     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-2-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0375403     Medline TA:  J Neurol Sci     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Elsevier B.V. All rights reserved.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Cutaneous Myxosarcoma with Pulmonary Metastases in a Dog.
Next Document:  Sorption of heavy oil onto Jiaozhou Bay sediment.