Protective effect of carnosine on white matter damage in corpus striatum induced by chronic cerebral hypoperfusion. (14th September 2018)

• Record Type: Journal Article
• Authors: Ma, Jing; Yan, Haijing; Wang, Ranran; Bo, Shuhong; Lu, Xiaotong; Zhang, Jian; Xu, Ajing
• Is Part Of: Neuroscience letters. Volume 683(2018)
• Page Start: 54
• Page End: 60
• Publication Date: 2018-09-14
• Subjects: MBP myelin basic protein -- rUCCAO rightunilateral common carotid arteries occlusion -- SIVD subcortical ischemic vascular dementia -- VaD vascular dementia -- 5-HT 5-hydroxytryptamine; Carnosine -- Microglia -- Corpus striatum -- Subcortical ischemic vascular dementia -- White matter damage; Neurology -- Periodicals; Neurology -- Periodicals; Research -- Periodicals; Neurologie -- Périodiques; Neuroanatomie -- Périodiques; Neuropharmacologie -- Périodiques; Neurophysiologie -- Périodiques; Neurology; Periodicals; Electronic journals; 617.48
• DOI: 10.1016/j.neulet.2018.06.032
• Languages: English
• ISSNs: 0304-3940

Abstract

Graphical abstract: Highlights: Carnosine recovered the myelin damage in the corpus striatum after Ruccao. Carnosine inhibited the activation of microgial in the corpus striatum after rUCCAO. Carnosine elevated the level of dopamine in the corpus striatum after rUCCAO. Carnosine inhibited the decrease of 5-HT level in the corpus striatum after rUCCAO. Carnosine reversed the apoptosis in the corpus striatum after rUCCAO. Abstract: Subcortical ischemic vascular dementia caused by chronic cerebral hypoperfusion due to small-artery disease is a common subtype of vascular dementia, which is recognized as the second most prevalent type of dementia. The aim of this study was to determine the effect of carnosine on white matter damage in corpus striatum. Adult male mice (C57BL/6 strain) were subjected to right unilateral common carotid arteries occlusion (rUCCAO), and treated with carnosine or saline. Klüver-Barrera staining, immunohistochemical analyses, Western blots and neurochemical analysis were performed after rUCCAO. The white matter in corpus striatum was damaged at day 37 after rUCCAO, which was largely rescued by carnosine (200, 500 mg/kg). Carnosine (200, 500 mg/kg) significantly recovered the expression of myelin basic protein, suppressed the activation of microglia and reversed the decrease of 5-hydroxytryptamine and dopamine levels in corpus striatum. Moreover, carnosine (200, 500 mg/kg) significantly inhibited the apoptosis in corpus striatum. These data suggest that carnosine has the neuroprotective effect in corpus striatum on rUCCAO in mice, may be due to its protection of neurotransmitters and inhibition of apoptosis.