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논문 기본 정보

자료유형
학술저널
저자정보
Seung Hak Lee (University of Ulsan) Bong-Kwang Jung (Korea Association of Health Promotion) Hyemi Song (Korea Association of Health Promotion) Han Gil Seo (Seoul National University Hospital) Jong-Yil Chai (Korea Association of Health Promotion) Byung-Mo Oh (Seoul National University Hospital)
저널정보
대한기생충학열대의학회 Parasites, Hosts and Diseases The Korean Journal of Parasitology Vol.58 No.4
발행연도
2020.8
수록면
461 - 466 (6page)

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Toxoplasma gondii is an obligate intracellular protozoan parasite that can invade various organs in the host body, including the central nervous system. Chronic intracranial T. gondii is known to be associated with neuroprotection against neurodegenerative diseases through interaction with host brain cells in various ways. The present study investigated the neuroprotective effects of chronic T. gondii infection in mice with cerebral ischemia experimentally produced by middle cerebral artery occlusion (MCAO) surgery. The neurobehavioral effects of cerebral ischemia were assessed by measurement of Garcia score and Rotarod behavior tests. The volume of brain ischemia was measured by triphenyltetrazolium chloride staining. The expression levels of related genes and proteins were determined. After cerebral ischemia, corrected infarction volume was significantly reduced in T. gondii infected mice, and their neurobehavioral function was significantly better than that of the uninfection control group. Chronic T. gondii infection induced the expression of hypoxia-inducible factor 1-alpha (HIF-1α) in the brain before MCAO. T. gondii infection also increased the expression of vascular endothelial growth factor after the cerebral ischemia. It is suggested that chronic intracerebral infection of T. gondii may be a potential preconditioning strategy to reduce neural deficits associated with cerebral ischemia and induce brain ischemic tolerance through the regulation of HIF-1α expression.

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