目的探讨中枢支和外周支切断对背根节(DRG)脑源性神经营养因子(BDNF)和神经营养因子(NT - 3)表达的影响。
Objective to explore the expression of brain derived neurotrophic factor (BDNF) and neurotrophin 3 (nt 3) in dorsal root ganglion (DRG) following peripheral and central axotomy.
方法：116例 肺外周病变的患者先进行纤支镜肺活检并刷检共163次，对于经纤支镜检未能获得诊断的37例患者再进行经皮 肺穿针吸活检共42次。
Methods:Under fluoroscopic guidance, TBPB was taken 163 times in 116 patients with peripheral pulmonary disease, among whom 37 patients with negative TBPB underwent PNAB 42 times totally.
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