Journals / Klinik Psikofarmakoloji Bülteni / 2014 / Cilt: 24 - Sayı: 3

Atomoksetin ve reboksetinin pasif sakınma testinde bellek üzerindeki iyileştirici etkisi

Improving Effect of Atomoxetine and Reboxetine on Memory in Passive Avoidance Task

Pages
211–219
Publication Date
2022-10-17
DOI
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Conclusion: Our results suggest that the effect of atomoxetine and reboxetine on improving memory deficit may be attributed to their inhibition of noradrenaline re-uptake.

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Objective & Hypothesis:Improving effect of atomoxetine and reboxetine on memory in passive avoidance task Objective: The effects of serotonin and/or noradrenaline re-uptake inhibitors on memory have been investigated in various clinical and pre-clinical studies.
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Key Findings & Data:Methods: Male Balb-C mice (25-30 g) were used.
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Conclusion & Impact:Conclusion: Our results suggest that the effect of atomoxetine and reboxetine on improving memory deficit may be attributed to their inhibition of noradrenaline re-uptake.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Improving effect of atomoxetine and reboxetine on memory in passive avoidance task Objective: The effects of serotonin and/or noradrenaline re-uptake inhibitors on memory have been investigated in various clinical and pre-clinical studies. However, contradictory results have been reported. In this study, the effect of the selective noradrenaline re-uptake inhibitors atomoxetine and reboxetine, a tricyclic antidepressant, amitriptyline, and a selective serotonin re-uptake inhibitor, paroxetine, on learning and memory were examined alone or in combination with scopolamine in mice using a passive avoidance task. Methods: Male Balb-C mice (25-30 g) were used. Reboxetine (10 mg/kg), atomoxetine (5 mg/kg), paroxetine (10 mg/kg) and amitriptyline (10 mg/ kg) were investigated alone or in combination with scopolamine (1 mg/kg). A passive avoidance task was used to evaluate memory function. Acquisition time was recorded on the first day and retention time on the second (after 24 h). All drugs and saline were administered intraperitoneally 30 min prior to testing in order to evaluate retention time. Results: None of the drugs or saline impaired retention time when administered alone; however, scopolamine significantly impaired retention time (p=0.003). Reboxetine, atomoxetine and paroxetine all resulted in a marked improvement in retention time in combination with scopolamine. A combination of amitriptyline and scopolamine also significantly reduced retention time (p=0.013). Conclusion: Our results suggest that the effect of atomoxetine and reboxetine on improving memory deficit may be attributed to their inhibition of noradrenaline re-uptake. The effect of paroxetine on improving memory deficit may arise from enhanced serotonergic activity. Amitriptyline’s lack of positive effect on memory deficit may be due to its own anticholinergic effect. Further studies using the same models and animal species are needed to clarify the mechanisms of the effects of each drug.

Özet

Atomoksetin ve reboksetinin pasif sakınma testinde bellek üzerindeki iyileştirici etkisiAmaç: Serotonin ve/veya noradrenalin geri alıminhibitörlerinin bellek üzerine etkileri çeşitli klinik vepreklinik çalışmalarda araştırılmıştır. Ancak, çelişkilisonuçlar bildirilmiştir. Bu çalışmada selektif noradrenalingeri alım inhibitörü olan atomoksetin ve reboksetinin;serotonin geri alım inhibitörü olan paroksetinin vetrisiklik antidepresan amitriptilinin farelerde belleküzerindeki etkileri pasif sakınma testi ile karşılaştırılmalıolarak değerlendirilmiştir.Yöntem: Çalışmada 25-30 gr ağırlığında erkekBalb-C fareler kullanıldı. Reboksetin (10 mg/kg),atomoksetin (5 mg/kg), paroksetin (10 mg/kg) veamitriptilin (10 mg/kg) tek başlarına ve skopolamin (1mg/kg) ile kombinasyon şeklinde uygulandı. Belleğideğerlendirmek için pasif sakınma testi kullanıldı. İlkgün farelerin kazanım süresi (acquisition time) ikincigün (24 saat sonra) ise retansiyon süresi (retention time)kaydedildi. Tüm ilaçlar ve salin, retansiyon süresinindeğerlendirilmesinden 30 dakika önce intraperitonealolarak uygulandı.Bulgular: Tüm ilaçlar ve salin, tek başlarınauygulandıklarında retansiyon süresini bozmadılar.Ancak, skopolamin retansiyon süresini anlamlı ölçüdebozdu (p=0.003). Skopolamin ile kombine edildiğindereboksetin, atomoksetin ve paroksetin retansiyonsüresinde belirgin bir iyileştirici etki gösterdi.Amitriptilin, skopolamin ile kombine edildiğinderetansiyon süresi anlamlı ölçüde azaldı (p=0.013).Sonuç: Atomoksetin ve reboksetinin bellek bozukluğuüzerindeki iyileştirici etkisi noradrenalin gerialıminhibisyonuna bağlı olabileceği ileri sürülebilir. Bellekbozukluğu üzerinde paroksetinin iyileştirici etkisi artmışserotonerjik aktivite ile ilişkili olabilir. Amitriptilininbellek bozukluğu üzerinde iyileştirici etkisinin olmamasıantikolinerjik yan etkisi nedeniyle olabilir. Bu ilaçlarıniyileştirici etkilerinin mekanizmalarını açıklamak içinaynı model ve hayvan türlerini kullanarak yapılacakdaha ileri çalışmalara ihtiyaç vardır.

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Cite This Article

YUCE, M., GUZEL, H., ILKAYA, F., SAY, G. N., MUJDECİ, M., AGRİ, A. E., AYDİN, F., KARABEKİROGLU, K., BAYRİL, F. (2022). Atomoksetin ve reboksetinin pasif sakınma testinde bellek üzerindeki iyileştirici etkisi. Klinik Psikofarmakoloji Bülteni, Cilt: 24 - Sayı: 3, 211–219. https://ajindex.com/articles/574035

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