Effects of spermine and the passive avoidance learning (PAL) following cerebral ischemia in chicks: Association with neuroprotection of pyramidal cells

• Published in: Journal of chemical neuroanatomy Vol. 88; pp. 41 - 45
• Main Authors: Kaplan, Suleyman, Onger, M. Emin, Altunkaynak, B. Zuhal, Elibol, Ebru, Deniz, Omur G., Karayiğit, M. Önder, Yarım, Murat, Marangoz, Cafer, Ragbetli, Murat Çetin
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 01.03.2018
• Subjects: Hippocampus; Ischemia; Learning; Spermine; Stereology; PBS; CE; CG; IMM; Hp; MeA; CNS; LPO; Learning; CV; Spermine; SG; Ischemia; NMDA; PAL; Stereology; TO; ISG; IG; CA; Hippocampus
• ISSN: 0891-0618; 1873-6300
• DOI: 10.1016/j.jchemneu.2017.11.006

•Spermine may decrease the side effects of the ischemia.•How spermine and the passive avoidance learning affect the ischemic chick brain?.•In this study, optical fractionator method was used for neuronal estimation. The aim of this study is to investigate the effects of spermine and the passive avoidance learning on hippocampus following transient cerebral ischemia in the chicks. The study is composed of the pure control (CG), sham (SG) and experimental groups (n=20). Experimental groups (ischemia group, IG and ischemia-spermine group, ISG) were exposed to ischemia for 20min whereas the SG was exposed to sham operation and CG group was not exposed to any operation. Passive avoidance learning (PAL) was applied to the half number of the subjects in each group. Both before and after 7days from the ischemia, operated animals were taken to PAL and then they were sacrificed. Total numbers of neurons in the hippocampus were stereologically estimated using Cresyl violet stained sections. We detected that number of neurons was increased following PAL and especially spermine treatment. According to our results, we suggested that spermine may reduce the deleterious effects of the ischemia by causing to increase in the neuronal number and so, it may be slightly supportive to the PAL.