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Yıl:2019; Cilt: 6; Sayı: 2>> Özet
TAM METİN
The Journal of Neurobehavioral Sciences; 2019;6(2):149-158
Albino ratlarda alcl3 ve kronik zorlu yüzme stresine bağlı bellek ve bilişsel bozulmaların nöroetolojik çalışması
H Rafi, H Rafiq, R Khan, F Ahmad, J Anis, M Farhan
University of Karachi, Pakistan
Bellek bozuklukları; inme, nörodejeneratif hastalıklar, travma, anksiyete veya depresif bozukluklar dahil olmak üzere çeşitli nörolojik bozuklukların ortaya çıkmasından kaynaklanabilir. Alüminyum iyi bilinen bir nörotoksiktir ve hafıza ve öğrenmeyle ilgili Santral Sinir Sistemi işlevsel bozukluklarına neden olan çeşitli nörodejeneratif hastalıklar ile ilişkilendirilir. Kronik zorlu yüzme stresi, prefrontal korteks ve hipokampus gibi öğrenme ve bellek süreçlerinde görev alan beyin bölgelerini etkiler. Bu araştırmada 36 erkek albino wistar rat üç gruba ayrılmıştır: Grup I: Kontrol (Su p.o.), Grup II: AlCl3 (vücut ağırlığına göre 100 mg / kg) (i.p.) testi I ve Grup III: zorlu yüzme stresi (20 oC, 10 dakika) 14 gün boyunca test II. Davranışlar Açık / Koyu Geçiş Kutusu, Açık Alan Testi, Yeni Nesne Tanıma Testi (NOR), T Labirent Testi ve Morris Su Labirent Testi’nde değerlendirilmiştir. Vücut ağırlığı ve besin alımı haftada bir gözlenmiştir. AlCl3 ve Zorlu Yüzme Testi uygulanan deneklerde vücut ağırlığı ve gıda alımının azaldığı, açık alan testinde hareket etmek öncesi daha uzun gecikme süresi kullandığı, geçilen kare sayısının azaldığı, açık / koyu kutuların aydınlık alanlarına girişlerin sayısının ve alanda geçirilen sürenin azaldığı ortaya konmuştur. Öğrenme ve bellek testlerinde Morris su labirentinde ve T labirent testinde uzamsal bellekte bozulma, Yeni Nesne Tanıma testinde yeni nesneyle etkileşimin süresinde azalma ve ayırt etme endeksinde azalma gözlenmiştir. Bu çalışma AlCl3 ve Zorlu Yüzme Testi uygulamalarının davranışsal bozukluklar ya da diğer psikopatolojilere yol açabilecek olan bellek kusurları ve bilişsel bozulmalar ilişkili olabileceğini göstermektedir.
Neuroethological study of alcl3 and chronic forced swim stress ınduced memory and cognitive deficits in albino rats
Memory disorders could be caused due to occurrence of various neurological disorders including strokes, neurodegenerative diseases, trauma, anxiety or depressive disorders. Aluminium is a well-known neurotoxicant and is associated with several neurodegenerative diseases that caused memory deficits and CNS functional impairments related to memory and learning whereas chronic forced swim stress affects learning abilities and impaired various brain regions such as prefrontal cortex and hippocampus which are involved in memory and learning processes. 36 male Albino wistar rats were divided into three groups: a) water (p.o.) control, b) AlCl3 (100 mg/kg bodyweight) (i.p.) test I and c) forced swim stress (20 oC, 10 minutes) test II for 14 days. Behaviors were assessed in Light/Dark transition Box, Open Field Test, Novel Object Recognition Test (NOR), T Maze Test and Morris Water Maze Test. Body weight and food intake were observed weekly. Animals administered with AlCl3 and FSS revealed reduced body weight and food intake while decreased total numbers of square crossed with greater latency to move in open field test and reduced time spent and entries in bright area of light/dark box. Deficient spatial memory in Morris water maze and T maze test and reduced discrimination index along with decreased duration of interactions with novel object in NOR test were observed in learning and memory tests. Present study determines that AlCl3 and FSS treatment could induce memory and cognitive impairment that lead to behavioral deficits and various other psychopathologies.

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