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Journals / Bağımlılık Dergisi / 2001 / Cilt: 2 - Sayı: 3

Strain dependent differences between rodents in nicotine-induced locomotor sensitization

Rodentlerde nikotine gelişen duyarlılıkta türe bağlı farklılıklar

İ. Tayfun UZBAY
Hakan KAYIR
Pages
120–123
Publication Date
2022-10-10
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Results showed that sensitization development to nicotine in rodents has strain dependent variations.

📌 3 Key Takeaways

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Objective & Hypothesis:Object: In the present study, strain dependent differences between mice and rats were investigated in the acute locomotor (LM) effect of nicotine, and LM sensitization produced by repeated administration of nicotine.
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Key Findings & Data:Nicotine (1 mg/kg) or saline (control group) were injected to mice or rats intraperitoneally, and LM activities were recorded immediately by intervals of 5 min for total 30 min.
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Conclusion & Impact:Results showed that sensitization development to nicotine in rodents has strain dependent variations.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Object: In the present study, strain dependent differences between mice and rats were investigated in the acute locomotor (LM) effect of nicotine, and LM sensitization produced by repeated administration of nicotine. Method: Adult male Swiss-Webster mice and Wistar rats were subjects. Nicotine (1 mg/kg) or saline (control group) were injected to mice or rats intraperitoneally, and LM activities were recorded immediately by intervals of 5 min for total 30 min. Nicotine and saline injections were lasted once a day for 5 days repeatedly. Results: Nicotine (1 mg/kg) had no significant effect on total LM activity (30 min) of both mice and rats at the first injection. When the data were analyzed by 5 min intervals, a significant increase in LM activity was only determined in rats treated with nicotine. On the 5th day, only the LM activity (30 min) of nicotine treated rats was increased significantly compared to both control (saline treated) group and the 1st day of the same group. That increase was also significant in 5 min intervals of LM activity. Discussion: Nicotine administration to mice and rats by the same protocol resulted in sensitization only in rats. Results showed that sensitization development to nicotine in rodents has strain dependent variations.

Özet

Bu çalışmada, nikotinin farelerde ve sıçanlarda akut lokomotor (LM) etkisinde ve tekrarlayan dozları sonucu gelişen LM duyarlılıkta türe bağlı farklılıkların incelenmesi amaçlanmıştır. Yöntem: Çalışmada yetişkin, erkek Swiss-Webster fareler ve Wistar sıçanlar kullanıldı. Deneklere nikotin (1 mg/kg) yada salin (kontrol gurubu), intraperitoneal olarak enjekte edildi ve hemen ardından, 5 dakikalık periyotlarla, toplam 30 dk LM aktiviteleri ölçüldü. Enjeksiyonlara arka arkaya 5 gün devam edildi. Sonuçlar: Nikotin (1 mg/kg) ilk gün uygulamada, hem farelerde hem de sıçanlarda 30 dakikalık toplam LM aktivite üzerine anlamlı etki oluşturmadı. Beşer dakikalık ölçüm intevallerinde ise sadece sıçanlarda nikotin grubunda anlamlı fark saptandı. Uygulamanın 5. gününde 30 dakikalık LM aktivite, sadece sıçanlarda, nikotin (1 mg/kg) alan gurupta, hem kontrol gurubuna hem de ilk güne göre istatistikçe anlamlı ölçüde arttı. Bu artış beşer dakikalık aralıklı ölçümlerde de anlamlı düzeydeydi. Değerlendirme: Fare ve sıçanlara aynı doz ve protokolde nikotin verilmesi sadece sıçanlarda duyarlılaşmaya yol açmıştır. Bulgularımız rodentlerde nikotine duyarlılaşma gelişmesinde türe bağlı farklılıklar olduğunu göstermektedir.

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Cite This Article

UZBAY, İ. T., KAYIR, H. (2022). Strain dependent differences between rodents in nicotine-induced locomotor sensitization. Bağımlılık Dergisi, Cilt: 2 - Sayı: 3, 120–123. https://ajindex.com/articles/459219

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