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This work was performed on the offspring of 5 outbred female albino rats to give a comparative immunohistochemical evaluation of doublecortin (DCX) and NeuN expression in the neurons of the cerebellar cortex and nucleus interpositus in the early postnatal ontogenesis (postnatal days 2-15). DCX expression was detected in postmitotic neurons of the external granular layer and migrating neurons of the cerebellar cortex. At postnatal days 2 and 7 DCX expression in neocerebellum was higher than in paleocerebellum. NeuN expression was found to appear in migrating granule neurons, and reach the maximum in mature neurons of internal granular layer. DCX expression was not detected in Purkinje cells and in the nucleus interpositus of the cerebellum. In neurons of the nucleus interpositus the expression of NeuN progressively increased from postnatal days 2 to 15. Thus, a comparative immunohistochemical study of the dynamics of the expression of the pair of molecular markers studied proved to be an effective way of the assessment of the development of granular neurons of the cerebellum in early postnatal ontogenesis.


S M Zimatkin, O A Karniushko. EXPRESSION OF DOUBLECORTIN AND NeuN IN THE DEVELOPING CEREBELLAR NEURONS IN RAT]. Morfologii︠a︡ (Saint Petersburg, Russia). 2016;149(1):38-42

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PMID: 27487661

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