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Yıl:2018; Cilt: 5; Sayı: 3>> Özet
TAM METİN
The Journal of Neurobehavioral Sciences; 2018;5(3):137-139
Tnf-α aracılı nöroinflamasyonda östrojenin kinürenin yolu ve nf-kb üzerine etkileri
HE Yalçın, BK Aksulu, F Özen, BA Arslan
Üsküdar Üniversitesi, İstanbul
Nöroinflamasyon, glia aktivasyonunu, sitokinler ve kemokinler gibi inflamatuar mediatörlerin salınmasını ve reaktif oksijen ve nitrojen türlerinin oluşumunu içerir. Alzheimer hastalığı, Parkinson hastalığı, demans gibi birçok nörodejeneratif hastalık sürecinde merkezi bir rol oynar. Genellikle yaşlanmayla ilişkili olan östrojen yoksunluğu, özellikle menopoz sonrası kadınlarda öğrenme kaybı ve hafıza becerileriyle ilişkilidir ve Alzheimer hastalıgi ile ilişkilidir. Bu çalışmada, 17-b östradiolun, kynunerine yolağı ve NF-kB gen ifadesi uzerine etkisini arastirdik. Elde ettiğimiz sonuçlara göre östrojen, farklılaşmış SH-SY5Y hücrelerinde TNF-alfainkübasyonu sonrası kinüreninaz geninin ekspresyon düzeyini arttırırken, IDO-1 gen ekspresyon düzeyini azalttı. Bununla birlikte, NF- kB gen ekspresyon seviyesini değiştirmedi.
Effects of estrogen on kynurenıne pathway and nf-kb in tnf-α induced neuroinflammation
Neuroinflammation involves glia activation, releasing of inflammatory mediators such as cytokines and chemokines, and formation of reactive oxygen and nitrogen species. It plays a central role in many neurodegenerative diases processes such as Alzheimer’s disease, Parkinson’s disease, dementia. Estrogen deprivation, commonly associated with aging, loss of learning and memory skills in postmenopausal women and Alzheimer’s disease. In this study, we studied effects of 17-ßestradiol on kynunerine pathway and NK-kB gene expression in neuroinflammation. According to our results, estrogen increased expression of kynunerinase gene and decreased IDO-1 gene expression after TNF-alpha incubation in differentiated SH-SY5Y cells. However, it did not change NF-kB gene expression.

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