unmyelinated

Schwanns cells proliferated and unmyelinated nerve fiber decreased.

毛细血管内皮细胞增生及细胞连接增宽等.

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TH, 5 - HT , SP and L - ENK immunoreactive fibers in the lateral horn were unmyelinated.

大鼠侧角内的 5-HT 、TH 、 SP和L-ENK免疫反应纤维均为无髓纤维.

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