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KMID : 0892920140230030258
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Experimental Neurobiology
2014 Volume.23 No. 3 p.258 ~ p.265
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Proposed Motor Scoring System in a Porcine Model of Parkinson's Disease induced by Chronic Subcutaneous Injection of MPTP
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Moon Joon-Ho
Kim Ji-Ho
Im Hyung-Jun
Lee Dong-Soo
Park Eun-Jung
Song Kil-Young
Oh Hyun-Ju
Hyun Su-Bin
Kang Sang-Chul
Kim Hyun-Il
Moon Hyo-Eun
Park Hyung-Woo
Lee Hong-Jae
Kim Eun-Ji
Kim Seok-Joong
Lee Byeong-Chun
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Abstract
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Destruction of dopaminergic neurons in the substantia nigra pars compacta (SNpc) is a common pathophysiology of Parkinson's disease (PD). Characteristics of PD patients include bradykinesia, muscle rigidity, tremor at rest and disturbances in balance. For about four decades, PD animal models have been produced by toxin-induced or gene-modified techniques. However, in mice, none of the gene-modified models showed all 4 major criteria of PD. Moreover, distinguishing between PD model pigs and normal pigs has not been well established. Therefore, we planned to produce a pig model for PD by chronic subcutaneous administration of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP), neurotoxin. Changes in behavioral patterns of pigs were thoroughly evaluated and a new motor scoring system was established for this porcine model that was based on the Unified Parkinson's Disease Rating Scale (UPDRS) in human PD patients. In summary, this motor scoring system could be helpful to analyze the porcine PD model and to confirm the pathology prior to further examinations, such as positron emission tomography-computed tomography (PET-CT), which is expensive, and invasive immunohistochemistry (IHC) of the brain.
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KEYWORD
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Parkinson's disease, pig, 1-methyl-4-phenyl-1, 2, 3, 6-tetrahydropyridine (MPTP), scoring analysis
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