Journals / Bağımlılık Dergisi / 2007 / Cilt: 8 - Sayı: 2

P-Klorfenilalaninin sıçanlarda etanol yoksunluk sendromu üzerine etkileri

Effects of p-chlorophenylalanine (pCPA) on ethanol withdrawal syndrome in rats

Pages
73–78
Publication Date
2022-10-10
DOI
—
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AI Summary & Key Takeaways

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

These signs of ethanol withdrawal may be related to serotonergic mechanisms in central nervous system.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: In the present study, the effects of p- chlorophenylalanine (pCPA), a serotonin depleting agent, treatment on ethanol withdrawal syndrome have been investigated in rats.
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Key Findings & Data:Thus, contributions of central serotonergic system to various signs of ethanol withdrawal syndrome have been examined and clarified.Methods: Ethanol (7.2% v/v) was given to adult male Wistar rats by a liquid diet for 21 days. pCPA (100 mg/kg) and saline were injected to rats intraperitoneally 24 h before ethanol withdrawal testing.
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Conclusion & Impact:These signs of ethanol withdrawal may be related to serotonergic mechanisms in central nervous system.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: In the present study, the effects of p- chlorophenylalanine (pCPA), a serotonin depleting agent, treatment on ethanol withdrawal syndrome have been investigated in rats. Thus, contributions of central serotonergic system to various signs of ethanol withdrawal syndrome have been examined and clarified.Methods: Ethanol (7.2% v/v) was given to adult male Wistar rats by a liquid diet for 21 days. pCPA (100 mg/kg) and saline were injected to rats intraperitoneally 24 h before ethanol withdrawal testing. After 2nd, 4th and 6th h of ethanol withdrawal, rats were observed for 5 min, and withdrawal signs, including locomotor hyperactivity, agitation, stereotyped behavior, wet dog shakes, tremor and audiogenic seizures were recorded or rated. pCPA (100 mg/kg) were also administered to no ethanol-dependent control rats and locomotor activity was measured and evaluated like in ethanol-dependent group.Results: pCPA treatment produced some significant increases in locomotor activity of both control and ethanol- dependent rats during the observation period. pCPA caused some increases the severity of agitation and intensity of wet dog shakes at 2nd and 6th hrs of ethanol withdrawal, respectively. It was no effective on the other signs of ethanol withdrawal except audiogenic seizures. pCPA pretreatment inhibited significantly the incidence of audiogenic seizures.Conclusion: Our findings suggest that pCPA intensified locomotor hyperactivity, agitation and wet dog shakes but attenuated audiogenic seizures during ethanol withdrawal in ethanol-dependent rats. These signs of ethanol withdrawal may be related to serotonergic mechanisms in central nervous system.

Özet

Amaç: Sunulan çalışmada, serotonin depolarını boşaltan bir ajan olan p-klorfenilalaninin (pCPA) sıçanlarda etanol yoksunluk sendromu üzerine etkileri incelenmiştir. Böylece etanol yoksunluk sendromunun çeşitli belirtilerinesantralserotonerjik sistemin katkısı incelenmiş ve açıklığakavuşturulmuştur.Yöntem: Etanol (% 7.2 v/v) erişkin Wistar türü erkek sıçanlara sıvı diyet tekniği ile 21 gün süre ile verildi. pCPA (100 mg/kg) sıçanlara etanol yoksunluğunun test edilmesinden 24 saat önce intraperitoneal yoldan enjekte edildi. Etanol yoksunluğun 2, 4 ve 6. saatlerinde sıçanlarda 5’er dakika süre ile lokomotor hiperaktivite, ajitasyon, stereotipik davranışlar, ıslak köpek silkinmesi, tremor ve odiyojenik nöbetler gibi yoksunluk belirtileri değerlendirilerek bunların sıklık ve şiddeti kaydedildi veya skorlandı. pCPA (100 mg/kg) ayrıca etanole bağımlı olmayan kontrol sıçanlara da enjekte edilerek lokomotor aktivite üzerine etkileri değerlendirildi.Bulgular: pCPA uygulaması gözlem süreci boyunca hem etanole bağımlı hem de bağımlı olmayan sıçanların lokomotor aktivitelerinde anlamlı düzeyde artışlara neden oldu. pCPA etanol yoksunluğun 2. saatinde ajitasyonun şiddetinde, 6. saatinde ise ıslak köpek silkinmesi davranışının sıklığında anlamlı ölçüde artışlara neden oldu. Odiyojenik nöbetler hariç diğer yoksunluk belirtileri üzerine etkisizdi. pCPA verilmesi odiyojenik nöbetlerin sıklığını anlamlı ölçüde inhibe etti.Sonuç: Bulgularımız pCPA’nın etanole bağımlı sıçanlarda lokomotor hiperaktivite, ajitasyon ve ıslak köpek silkinmesi gibi yoksunluk belirtilerini daha da şiddetlendirirken, odiyojenik konvulsiyonların sıklığını azalttığına işaret etmektedir. Etanol yoksunluğunun bu belirtileri santral serotonerjik mekanizmalar ile ilişkili olabilir.

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Cite This Article

KAYIR, H., UZBAY, T. İ. (2022). P-Klorfenilalaninin sıçanlarda etanol yoksunluk sendromu üzerine etkileri. Bağımlılık Dergisi, Cilt: 8 - Sayı: 2, 73–78. https://ajindex.com/articles/459126

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