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Yıl:2017; Cilt: 4; Sayı: 1>> Özet
TAM METİN
The Journal of Neurobehavioral Sciences; 2017;4(1):8-12
Tanıma Hafızası Bozukluğu ve Albino Sıçanlarındaki Travmatik Beyin Yaralanmaları Esnasında Dmso, Ala Ve C Vitaminin Rolü
B Ibrahim, LS Bilbis, AY Abbas, N Suleiman, K Ibrahim
University of Maiduguri, Nigeria
Bilişsel ve işlevsel bozukluklar, esasen hasarın meydana geldiği bölge ve şiddetine bağlı olarak belirlenen travmatik beyin yaralanmasının (TBI) yaygın görülen bir klinik gelişmesi olarak ifade edilebilir. Mevcut çalışma, Dimetil Sülfoksit (DMSO), C vitamini ve Alfa lipoik asit (ALA) içerikli bir akut antioksidan tedavisinin potansiyel etkinliğini daha derinden inceleyebilmek adına kapalı kafa travmatik beyin yaralanmasının albino sıçanlarının hafızaları üzerindeki etkilerini araştırmayı amaçlamaktadır. Ağırlık düşürme yöntemiyle kapalı kafa yaralanmasının sıçan modeli uyuşturulmuş sıçanlar üzerinde uygulandı. Tedavi protokolü, travmatik beyin yaralanmasından bir saat sonra DMSO, C vitamini ve ALA’nın üç farklı doz halinde (22.5, 45 ve 67.5 mg/kg) ve tek seferde ağızdan alınmasını öngörmüştür. Travmatik beyin yaralanması sonrası sırasıyla mevcut hafızayı ve nörolojik işlevi değerlendirmek üzere Değiştirilmiş Nörolojik Şiddet Skorunun (mNSS) yanı sıra Yeni Nesne Tanıma Testi uygulanmıştır. Elde edilen sonuçlar, travmatik beyin yaralanmasını takip eden yedi ila on dört gün boyunca önemli ölçüde tanıma hafızası eksikliğini ortaya çıkarmıştır. Daha da önemlisi; DMSO, C vitamini ve ALA, travmatik beyin yaralanmasından kaynaklı hafıza bozukluğunu azaltma eğilimi göstermiştir. Müdahalede bulunulan deney guruplarına ait Değiştirilmiş Nörolojik Şiddet Skoru’nda (mNSS) müdahale edilmeye guruptakilere nazaran birinci ve ikinci haftada önemli ölçüde düşüş gözlenmiştir. Sonuç olarak antioksidan kullanımı, oksidatif stresi azaltarak ve bilişsel işlevi geliştirerek travmatik beyin yaralanması tedavisine katkıda bulunabilir.
Recognition Memory Impairment and The Role of DMSO, ALA and Vitamin C During Traumatic Brain Injury in Albino Rats
Expression of cognitive and functional disorders is a common clinical development of traumatic brain injury (TBI) that is essentially determined by the site and severity of the insult. The present study sought to examine the effects of closed-head TBI on memory in albino rats, in order to further examine the potential efficacy of an acute antioxidants treatment with Dimethyl Sulfoxide (DMSO), Vitamin C and Alpha µ- lipoic acid (ALA). The rat model of closed-head injury by weight drop method was applied on anesthetized rats. The treatment protocol included single oral administration of DMSO, Vitamin C and ALA in three different doses (22.5, 45 and 67.5 mg/kg) 1hr post-TBI and continued for two weeks. The Novel Object Recognition Test as well as the Modified Neurological severity score (mNSS) were employed to assess post-TBI memory and neurological function respectively. Our results revealed a recognition memory deficit that was significant 7 days after TBI up to 14 days post-TBI. Most importantly, DMSO, Vitamin C and ALA were able to attenuate the memory impairment by TBI. The mNSS of the treated groups decreased significantly than the non-treated group in the first and second week. Conclusively, the use of antioxidants can help in the management of TBI by reducing oxidative stress and improving cognitive function.

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