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Yıl:1996; Cilt: 33; Sayı: 1>> Özet
Nöropsikiyatri Arşivi; 1996;33(1):19-28
Akut İskemik Strokte Nöronal Hasarın Nöron Spesifik Enolaz İle Belirlenmesi
T Duman, E Çıtır, M Aldemir, S Gürçay
Ankara Numune Hastanesi Nöroloji Kliniği
Nöronal doku hücresel farklılığı ve kompleksliğine karşın hücreye spesifik proteinler konusunda yoğun araştırma alanı olmuştur. Nöron spesifik enolaz, 2-Fosfogliseratın fosfoenolpiruvat'a dönüşümünü katalize eden, glikolitik yolun enzimi enolaz'ın bir izoenzimi olup nöronal ve nöroendokrin dokuda yüksek konsantrasyon özelliği gösterir. Bu çalışma, akut serebral iskemide serebral hasarın belirlenmesinde nöron spesifik enolazın değerlendirilmesi ve sensitivitesinin tespit edilmesi amacıya planlandı. Akut iskemik stroklu 20 hastada ve kontrol grubu olarak alınan 15 olguda BOS'ta nöron spesifik enolaz düzeyleri ölçüldü.
1) Akut iskemik stroklu 20 olgunun NSE düzeyi ortalaması normalden yüksek bulundu (45.41 ng/ml)
2) Enfarkt hacmi ile enolaz düzeyi arasındaki pozitif korelasyon bulundu (r= 0.83 p< 0.001).
3) Hasta grubunun NSE düzeyi (x= 55,51 ng/ml) kontrol grubunun NSE düzeyi (x= 6.66 ng/ml) ile karşılaştırıldığında anlamlı farklılık bulundu. Bu sonuçlar NSE düzeyi ile iskemik beyin hasarı arasında kullanılabilir bir ilişki bulunduğunu düşündürmektedir.
Neuron Specific Determination of Neuronal Damage In Acute Ischemic Stroke
Although its cellular differenciency and complexity, neuronal tissue has became an important research field about the proteins which are specific for cell. Neuron specific enolase (NSE) is an isoensime of glycolytic pathway enzyme enolase which catalyses inversion of 2 phosphoglycerate to phosphoenolpiruvate and it shows high concertration in neuronal and neuroendocrin tissues. This study was planned to evaluate NSE for determination of cerebral damage in acute cerebral Ischemia and to detect sensitivity of NSE. NSE in cerebrospinal fluid was measured m 20 patients with acute cerebral ischemia and in 15 control subjects
1) Mean NSE level was found higher than normal level m 20 patients with acute ischemic stroke (45.41 ng/ml).
2) A positive correlation was found between volume of infarct and enolase level (r= 0.83 p< 0.001)
3) When NSE level of patient group compared with control group, a meaningful difference was found (p< 0.0001).
4) In evaluation of sensitivity, sensitivity was found 95 % for NSE to indicate neuronal damage when maximum value was taken as cut of value.
These study suggest an usable relation between NSE level and damage of ischemic brain.

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