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The Plasticity of Brain Gray Matter and White Matter following Lower Limb Amputation
المؤلفون المشاركون
Zhao, Lu
Evans, Alan C.
Jiang, Guangyao
Yin, Xuntao
Li, Chuanming
Li, Lei
Wu, Jixiang
Wang, Jian
Jiang, Tianzi
المصدر
العدد
المجلد 2015، العدد 2015 (31 ديسمبر/كانون الأول 2015)، ص ص. 1-10، 10ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2015-10-25
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
الملخص EN
Accumulating evidence has indicated that amputation induces functional reorganization in the sensory and motor cortices.
However, the extent of structural changes after lower limb amputation in patients without phantom pain remains uncertain.
We studied 17 adult patients with right lower limb amputation and 18 healthy control subjects using T1-weighted magnetic resonance imaging and diffusion tensor imaging.
Cortical thickness and fractional anisotropy (FA) of white matter (WM) were investigated.
In amputees, a thinning trend was seen in the left premotor cortex (PMC).
Smaller clusters were also noted in the visual-to-motor regions.
In addition, the amputees also exhibited a decreased FA in the right superior corona radiata and WM regions underlying the right temporal lobe and left PMC.
Fiber tractography from these WM regions showed microstructural changes in the commissural fibers connecting the bilateral premotor cortices, compatible with the hypothesis that amputation can lead to a change in interhemispheric interactions.
Finally, the lower limb amputees also displayed significant FA reduction in the right inferior frontooccipital fasciculus, which is negatively correlated with the time since amputation.
In conclusion, our findings indicate that the amputation of lower limb could induce changes in the cortical representation of the missing limb and the underlying WM connections.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Jiang, Guangyao& Yin, Xuntao& Li, Chuanming& Li, Lei& Zhao, Lu& Evans, Alan C.…[et al.]. 2015. The Plasticity of Brain Gray Matter and White Matter following Lower Limb Amputation. Neural Plasticity،Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1075414
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Jiang, Guangyao…[et al.]. The Plasticity of Brain Gray Matter and White Matter following Lower Limb Amputation. Neural Plasticity No. 2015 (2015), pp.1-10.
https://search.emarefa.net/detail/BIM-1075414
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Jiang, Guangyao& Yin, Xuntao& Li, Chuanming& Li, Lei& Zhao, Lu& Evans, Alan C.…[et al.]. The Plasticity of Brain Gray Matter and White Matter following Lower Limb Amputation. Neural Plasticity. 2015. Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1075414
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1075414
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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