Journals / Turkish Neurosurgery / 2012 / Cilt: 22 - Sayı: 5

İmmatür sıçanlarda travmatik beyin hasarının neden olduğu anksiyete, prefrontal korteks VEGF immunreaktivitesi ve nöron dansitesinde azalma ile koreledir

Anxiety caused by traumatic brain injury correlates to decreased prefrontal cortex VEGF immunoreactivity and neuron density in immature rats

Pages
604–610
DOI
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ConclusIon: These results indicate that TBI decreases VEGF immunoreactivity in prefrontal cortex neurons and increases the anxiety levels of immature rats.

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Objective & Hypothesis:AIM: Traumatic brain injury (TBI) may cause neuropsychiatric disorders such as anxiety disorder which has negative effects on cognitive functions and behavior.
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Key Findings & Data:The aim of this study is to investigate the effects of TBI on anxiety and vascular endothelial growth factor (VEGF) immunoreactivity on the prefrontal cortex of immature rats, which is one of the anxiety-related regions of the brain in 7-day-old immature rats subjected to contusion injury.
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Conclusion & Impact:ConclusIon: These results indicate that TBI decreases VEGF immunoreactivity in prefrontal cortex neurons and increases the anxiety levels of immature rats.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

AIM: Traumatic brain injury (TBI) may cause neuropsychiatric disorders such as anxiety disorder which has negative effects on cognitive functions and behavior. The aim of this study is to investigate the effects of TBI on anxiety and vascular endothelial growth factor (VEGF) immunoreactivity on the prefrontal cortex of immature rats, which is one of the anxiety-related regions of the brain in 7-day-old immature rats subjected to contusion injury. MaterIal and Methods: Rats were divided into three groups: Control (n=7), Sham (n=7) and TBI (n=7). Anxiety levels were assessed with open field activity and elevated plus maze in postnatal 27 days. Prefrontal cortex damage related to TBI was examined by cresyl violet staining and VEGF immunostaining. Prefrontal cortex neuronal density was calculated. Serum corticosterone levels were determined. Results: The anxiety level in the TBI group was significantly greater than the control and sham groups. The prefrontal cortex VEGF immunostaining score and neuron density were decreased in the TBI group compared to control and sham group. Serum corticosterone levels were significantly increased in the TBI group. ConclusIon: These results indicate that TBI decreases VEGF immunoreactivity in prefrontal cortex neurons and increases the anxiety levels of immature rats.

Özet

AMAÇ: Travmatik beyin hasarı (TBH), bilişsel işlevler ve davranışları üzerinde olumsuz etkileri vardır. Anksiyete bozukluğu gibi nöropsikiyatrik hastalıklara neden olabilir. Bu çalışmanın amacı, 7 günlük sıçanlara uygulanan TBH’nin anksiyete düzeyleri, prefrontal kortekste nöron dansitesi ve vasküler endotelyal büyüme faktörü (VEGF) immünoreaktivitesi üzerine olan etkilerini araştırmaktır. YÖNTEM ve GEREÇLER: Sıçanlar üç gruba ayrıldı: Kontrol (n = 7), Sham (n = 7) ve TBH (n = 7). Anksiyete düzeyleri, doğum sonrası 27 gün içinde açık alan aktivitesi ve yükseltilmiş artı labirent ile değerlendirildi. Prefrontal korteks, cresyl violet ve VEGF immün boyaması ile incelendi. Prefrontal korteks nöronal yoğunluğu hesaplandı. Serum kortikosteron düzeyleri belirlendi. BULGULAR: TBH grubunda anksiyete düzeyi kontrol ve sham gruplarına göre anlamlı derecede daha fazlaydı. Prefrontal korteks VEGF immünreaktivitesi ve nöron yoğunluğu kontrol ve sham grubu ile karşılaştırıldığında TBH grubunda azalmış olarak bulundu. Serum kortikosteron düzeyleri TBH grubunda anlamlı derecede artmış bulundu. SONUÇ: Bu sonuçlar immatür sıçanlarda TBH’ın, anksiyete düzeylerini arttırdığını, prefrontal korteks nöron dansitesi ve VEGF immünoreaktivitesini azalttığını göstermektedir.

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Cite This Article

BAYKARA, B., ÇETİN, F., BAYKARA, B., AKSU, İ., DAYI, A., KİRAY, M., ŞİŞMAN, A. R., ÖZDEMİR, D., ARDA, M. N., UYSAL, N. (2012). İmmatür sıçanlarda travmatik beyin hasarının neden olduğu anksiyete, prefrontal korteks VEGF immunreaktivitesi ve nöron dansitesinde azalma ile koreledir. Turkish Neurosurgery, Cilt: 22 - Sayı: 5, 604–610. https://ajindex.com/articles/405049

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