Temporal changes in the expression of TGF-beta 1 and EGF in the ventral horn of the spinal cord and associated precentral gyrus in adult Rhesus monkeys subjected to cord hemisection.

Temporal changes in the expression of TGF-beta 1 and EGF in the ventral horn of the spinal cord and associated precentral gyrus in adult Rhesus monkeys subjected to cord hemisection. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Temporal changes in the expression of TGF-beta 1 and EGF in the ventral horn of the spinal cord and associated precentral gyrus in adult Rhesus monkeys subjected to cord hemisection. Abstract Text:

Xiao-Li Li,Jia Liu,Xu-Yang Wang,Li-Yan Li,Wei Ni,Rong-Yuan Zheng,Hui-Juan Yang,Yong-Chao Lu,Jian-Guo Qi,Ting-Hua Wang,

It is well known that some growth factors can not only rescue neurons from death, but also improve motor functions following spinal cord injury. However, their cellular distribution in situ and temporal expressions following spinal cord injury have not been determined, especially in primates. This study investigated the temporal changes in the expression of two growth factors-epidermal growth factor (EGF) and transforming growth factor-beta 1 (TGF-beta1) in the injured motoneurons of the spinal cord and the associated precentral gyrus in adult Rhesus monkeys subjected to spinal cord hemisection. Animals were allowed to survive 7, 14, 30 and 90 days post operation (dpo). Functional recovery of the hindlimbs was assessed using Tarlov scale. The immunohistological expressions of EGF and TGF-beta1 in the ventral horn motoneurons decreased sharply at 7 dpo in the cord segments caudal to the lesion site, which was followed by an increase and a peak between 14 and 30 dpo for EGF and at 90 dpo for TGF-beta1. Changes in the expression of EGF in the precentral gyrus were similar to that in the spinal cord. No TGF-beta1 immunoreactive neurons were detected in the precentral gyrus. In the spinal segments rostral to the lesion, the expressions of EGF and TGF-beta1 peaked at 30 dpo. The mRNA of EGF was detected in both spinal motoneurons and the precentral gyrus, while that of TGF-beta1, only in the spinal motoneuons, suggesting that the spinal motoneurons themselves could synthesize both the growth factors. Partial locomotor recovery in hindlimbs was seen, especially after 14 dpo. It was concluded that a possible association existed between the modulation of EGF and TGF-beta1 and the recovery of locomotor function, and their roles differed somewhat in the neuroplasticity observed after spinal cord injury in primates.

Temporal changes in the expression of TGF-beta 1 and EGF in the ventral horn of the spinal cord and associated precentral gyrus in adult Rhesus monkeys subjected to cord hemisection. Publishing Authors By Initials

XL Li,J Liu,XY Wang,LY Li,W Ni,RY Zheng,HJ Yang,YC Lu,JG Qi,TH Wang,

For similar abstracts research abstracts see: abstracts research

PUBMED ID PMID:

MEDLINE DATE:

Temporal changes in the expression of TGF-beta 1 and EGF in the ventral horn of the spinal cord and associated precentral gyrus in adult Rhesus monkeys subjected to cord hemisection. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of the neurological sciences

VOLUME: 268

Page Numbers: 163-71

Journal Abbreviation: J. Neurol. Sci.

ISSN: 0022-510X

DAY: 14

MONTH: 01

YEAR: 2008

Temporal changes in the expression of TGF-beta 1 and EGF in the ventral horn of the spinal cord and associated precentral gyrus in adult Rhesus monkeys subjected to cord hemisection. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 375403

Temporal changes in the expression of TGF-beta 1 and EGF in the ventral horn of the spinal cord and associated precentral gyrus in adult Rhesus monkeys subjected to cord hemisection. Keywords Mesh Terms:

KEYWORDS:

MESH TERMS:

Chemical & Substance for Abstract: Temporal changes in the expression of TGF-beta 1 and EGF in the ventral horn of the spinal cord and associated precentral gyrus in adult Rhesus monkeys subjected to cord hemisection. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for Temporal changes in the expression of TGF-beta 1 and EGF in the ventral horn of the spinal cord and associated precentral gyrus in adult Rhesus monkeys subjected to cord hemisection.

AFFILIATION: Institute of Neurological Disease, West China Hospital, Sichuan University, Chengdu 610041, China; Department of Neurology, the First Affiliated Hospital, Wenzhou Medical College, Wenzhou, 325000, China.

Country: Netherlands

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: J Neurol Sci

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Temporal changes in the expression of TGF-beta 1 and EGF in the ventral horn of the spinal cord and associated precentral gyrus in adult Rhesus monkeys subjected to cord hemisection Related Publications

• A novel link between the proteasome pathway and the signal transduction pathway of the bone morphogenetic proteins (BMPs).
• Effects of phytoestrogen genistein on delayed after depolarization and triggered activity induced by ouabain in guinea pig papillary muscles.
• Occupational health in China.
• Research on expression of telomerase in human odontogenic lesions.
• Suppression of tumor necrosis factor-mediated apoptosis by nuclear factor kappaB-independent bone morphogenetic protein/Smad signaling.
• [A gene analysis of the low density lipoprotein receptor in Chinese with homozygous familial hyperchol-esterolemia]
• [A novel rat aplastic anemia model induced by 5-fluorouracil combined with busulfan]
• [A study of association between atherothrombotic brain infarction and HLA-DQA1 peptide binding motifs]
• [An experimental study on the bone repairing ability of recombinant human bone morphogenetic protein-2-coral composited artificial bone]
• [Analysis of EEG based on the complexity measure]
• [Apoptosis of bone marrow cells aplastic anemia patients treated with cyclosporin A]
• [Carrier detection and prenatal diagnosis for hemophilia A]
• [Changes of the expression of integrin alpha6beta1 and the activity of focal adhesion kinase in the liver sinusoidal endothelial cell in experimental fibrotic rats]
• [Clinical analysis of 22 patients with primary biliary cirrhosis]
• [Clinical significance of hemostatic molecular markers in acute leukemia]
• [Effects of phenytoin on structural aberration of human sperm chromosomes in vitro]
• [Expression and purification of human papillomavirus type16 L1 protein in a prokaryotic expression system]
• [Extension of cardiac monitoring function by used of ordinary ECG machine]
• [Histopathological features of 27 cases of primary biliary cirrhosis]
• [Multiagent system for individual artificial hip joint]
• [Neomycin inhibits nicotinic receptor-mediated response in pheochromocytoma (PC12) cells]
• [No evidence for association between the alpha 2-macroglobulin polymorphism and Alzheimer's disease in the Han Chinese]
• [PCR cloning of 3'-terminal repeat fragments of Clostridium difficile toxin A and toxin B gene]
• [Preliminary study of prevention from restenosis of hepatic venous in stents by gene transfer of phVEGF165]
• [Prostaglandin inhibitor indomethacin inhibits afferent activities of Adelta and C units in the saphenous nerve of diabetic hyperalgesic rats]
• [Research and development on microwave sterilization]
• [Role of recombinant human bone morphogenetic protein 2/collagen as an onlay bone graft on adult rat calvarial bone]
• [Study of telomerase activity and its related genes expression in leukemia cells]
• [Thrombopoietic effect of recombinant human thrombopoietin gene transferred to mice mediated by electric pulse on normal and experimental thrombocytopenia mice]
• [Thymectomy for late-onset myasthenia gravis in the elderly (with report of 23 cases)]