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Yıl:2021; Cilt: 34; Sayı: 1>> Özet
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Düşünen Adam: Psikiyatri ve Nörolojik Bilimler Dergisi; 2021;34(1):14-22
Fare beyninde sodyum benzoatın anksiyojenik, hafızayı bozucu, pro-oksidan ve proinflamatuar etkileri
A T Olofinnade, A Y Onaolapo, O J Onaolapo
Lagos State University, Lagos State, Nigeria
Amaç: Yaygın olarak kullanılan bir gıda katkı maddesi olan sodyum benzoat (NaB), yiyecek ve içeceklerin bozulmasını ve/veya ekşimesini önlemede etkilidir. Sodyum Benzoatın şizofreni tedavisine yardımcı olacak şekilde potansiyel kullanımını öneren çalışmalar olmakla birlikte; bu maddenin özellikle kuru gıdalara eklendiğinde beyin üzerindeki etkileri konusunda bilgi eksikliği vardır. Bu çalışma, kemirgen yemine eklenen NaB'nin fare beynindeki nöro-davranış, antioksidan durum, antienflamatuar ve apoptotik belirteçler üzerindeki etkilerini incelemektedir. Yöntem: Denek hayvanları her biri 10 fareden oluşan 4 gruba ayrılmıştır. Gruplar, normal kontrol (kemirgen yemiyle beslenen) ve sekiz hafta boyunca sırasıyla 125, 250 ve 500 mg/kg NaB ile beslenen diğer 3 grubu içeriyordu. Açık alan, yükseltilmiş artı labirent (EPM), Y-labirenti ve radyal kollu labirent davranışları 57. günde değerlendirilip davranış testi uygulandıktan 24 saat sonra hayvanlara ötenazi uygulandı. Antioksidan durumunun, enflamatuar/apoptotik belirteçlerin ve asetilkolinesteraz aktivitesinin değerlendirilmesi için tüm beyin homojenatı üzerinde işlem uygulanmıştır. Bulgular: NaB içeren diyet; vücut ağırlığını, açık alan davranışlarını, çalışma belleğini ve anksiyete endekslerini değiştirdi. Beyin antioksidan durumu, tümör nekroz faktörü-α ve interlökin-10 azalırken, malondialdehit, kaspaz-3 düzeyi ve asetilkolinesteraz aktivitesi arttı. Sonuç: Çalışmanın sonuçları, kemirgen yemine bu konsantrasyonlarda NaB eklenmesinin hafıza kaybı, anksiyete, oksidatif stres ve yüksek enflamatuar/apoptotik etkiler ile ilişkili olduğunu ortaya koymuş ve NaB kullanımında dikkatli olunması gerektiği sonucuna varmıştır.
Anxiogenic, memory-impairing, pro-oxidant and pro-inflammatory effects of sodium benzoate in the mouse brain
Objective: Sodium benzoate (NaB), a commonly used food additive, is effective in preventing deterioration and/or spoilage of foods and drinks. While there have been reports suggesting its potential use as an adjunct in schizophrenia management; there is a lack of information on its effects on the brain, especially when added to dry foods. This study examined the effects of NaB added to rodent feed on neurobehavior, antioxidant status, anti-inflammatory and apoptotic markers in mouse brain. Method: Animals were divided into 4 groups of 10 mice each. Groups included normal control (fed with rodent chow) and 3 groups fed with NaB at 125, 250 and 500 mg/kg, respectively, for eight weeks. Open field, elevated plus maze (EPM), Y-maze, and radial-arm maze behaviors were assessed on day 57, following animals were euthanized 24 hours after the behavioral test. Whole-brain homogenate processed for the assessment of antioxidant status, inflammatory/apoptotic markers, and acetylcholinesterase activity. Results: The NaB diet altered body weight, open-field behaviors, working-memory, and anxiety indices. Brain antioxidant status, tumor necrosis factor-a and interleukin-10 decreased, while the malondialdehyde, caspase-3 level, and acetylcholinesterase activity increased. Conclusion: The results of this study revealed that the addition of NaB at these concentrations to rodent chow was associated with memory loss, anxiety, oxidative stress and increased inflammatory/apoptotic effects suggesting vigilance in its use.

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