The purpose of this proposal is to develop a core facility that will meet the major shared laboratory needs of a Head Injury Research Program devoted to studies of traumatic brain injury (TBI). The Core Facility will provide a centralized site for production of experimental TBI in rats by highly skilled personnel employing rigorously standardized protocols. The Core Facility will also perform standardized behavioral assessments, limited studies of cerebral blood flow and will process brain tissue for various histological procedures. The facility will also provide a central computerized laboratory database. Thus, the Core Facility will have several functions: 1) Production of experimental brain injury that is comparable across all experimental applications. the facility will employ models of moderate (fluid percussion) and severe (cortical impact) TBI developed in our laboratories. The facility will employ carefully trained and supervised personnel to provide a central surgical facility for preparation of rats and production of TBI. 2) Standardized behavioral assessments to insure consistency of injury and to compare with data derived from other experiments. The relevance of behavioral data to human TBI is periodically reviewed with neurosurgeons (Dr. Guy L. Clifton) and with neuropsychologists (Dr. Julia Hannay). 3) General histological processing of brain tissue for a variety of applications by each laboratory project (e.g. In situ hybridization, immunohistochemistry, light histological stains). Dr. Robert Gillman from University of Texas Medical Branch and Dr. Clay Goodman from Baylor College of Medicine will assist in interpretation of histopathological changes. 4) Compilation of a centralized computer database that will allow systematic comparisons of behavioral outcome measures between injury types and injury magnitudes. The system will also track the status of individual experiments handled by the Core Facility.

Project Start
Project End
Budget Start
Budget End
Support Year
2
Fiscal Year
1994
Total Cost
Indirect Cost
City
Houston
State
TX
Country
United States
Zip Code
77225
Posmantur, R M; Zhao, X; Kampfl, A et al. (1998) Immunoblot analyses of the relative contributions of cysteine and aspartic proteases to neurofilament breakdown products following experimental brain injury in rats. Neurochem Res 23:1265-76
Newcomb, J K; Kampfl, A; Posmantur, R M et al. (1997) Immunohistochemical study of calpain-mediated breakdown products to alpha-spectrin following controlled cortical impact injury in the rat. J Neurotrauma 14:369-83
Dixon, C E; Ma, X; Marion, D W (1997) Reduced evoked release of acetylcholine in the rodent neocortex following traumatic brain injury. Brain Res 749:127-30
Yang, K; Clifton, G L; Hayes, R L (1997) Gene therapy for central nervous system injury: the use of cationic liposomes: an invited review. J Neurotrauma 14:281-97
Yang, K; Mu, X S; Hayes, R L et al. (1997) DC-Chol liposome-mediated gene transfer in rat spinal cord. Neuroreport 8:2355-8
Posmantur, R; Kampfl, A; Siman, R et al. (1997) A calpain inhibitor attenuates cortical cytoskeletal protein loss after experimental traumatic brain injury in the rat. Neuroscience 77:875-88
Dixon, C E; Flinn, P; Bao, J et al. (1997) Nerve growth factor attenuates cholinergic deficits following traumatic brain injury in rats. Exp Neurol 146:479-90
Le, W; Yang, K; Whitson, J S et al. (1996) Liposome-mediated NGF gene transfection increases ChAT activity in CNS cell cultures. Neuroreport 7:710-2
Kampfl, A; Posmantur, R; Nixon, R et al. (1996) mu-calpain activation and calpain-mediated cytoskeletal proteolysis following traumatic brain injury. J Neurochem 67:1575-83
Dixon, C E; Bao, J; Long, D A et al. (1996) Reduced evoked release of acetylcholine in the rodent hippocampus following traumatic brain injury. Pharmacol Biochem Behav 53:679-86

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