Thant S. Zhu

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To investigate the production of steroid hormones by Schwann cells and to examine the regulation of steroid hormone production during myelination, cultures of rat Schwann cells were differentiated into their myelinating phenotype in the absence of neurons with dibutyryl cAMP (db-cAMP). During this process, the expression of P450scc (involved in steroid(More)
Fluorescence digital imaging microscopy was used to develop a method that allows the continuous monitoring and quantitative measurement of a single myelin internode throughout its development. Using this technique, steroid hormones such as progesterone and dexamethasone were shown to reduce the time required for the initiation and to regulate the rate of(More)
A simple and reproducible demyelination-remyelination system was developed with cocultures of rat dorsal root ganglia (DRG) neurons and Schwann cells, and the effects of steroid hormones were examined in this system. Addition of forskolin to the cocultures induced demyelination and lower levels of myelin protein P0 expression were seen in immunoblots after(More)
Through introducing the size (Nt) and the shape factor (λ), the size- and shape-dependent bond number Ba of quantum dots, respectively, with icosahedral, truc-decohedral, cuboctahedral, octahedral, decohedral and tetrahedral structures is established in this work. It is found that Nt and λ have reverse contribution to Ba, that is, Ba increases with increase(More)
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