兔孤束核区域内与呼吸相关的神经元。

Respiration related neurons in the region of the nucleus tractus solitarius of the rabbit.

作者信息

Jiang C, Gao L, Shen E, Wei J Y

出版信息

Brain Res. 1986 Jul 2;377(1):190-3. doi: 10.1016/0006-8993(86)91208-4.

Abstract

Systematic mapping of respiration-related units (RRUs) in the region of the nucleus tractus solitarius (NTS) was performed on rabbits anesthetized with urethane. Of 523 RRUs 295 (56%) were inspiratory (I), 130 (25%) expiratory (E) and 98 (19%) phase-spanning (PS). Such a large number of E and PS RRUs in NTS have not been reported in the cat. Six out of 16 I RRUs 6 of 13 E RRUs, and 1 of 3 PS RRUs had projections to contralateral cervical spinal cord. The 'no I inflation' test was conducted on 76 I and 38 E RRUs, of which 29 I RRUs were identified as I alpha and 31 as I beta. Thirteen E RRUs were inhibited and 6 facilitated by preceding lung inflation. Almost all types of respiratory neurons so far reported from different nuclei of cat's brainstem have been located in the NTS region of the rabbit.

摘要

在用氨基甲酸乙酯麻醉的兔子身上，对孤束核（NTS）区域内与呼吸相关的神经元（RRUs）进行了系统定位。在523个RRUs中，295个（56%）为吸气性（I），130个（25%）为呼气性（E），98个（19%）为跨相性（PS）。猫中尚未报道过NTS中有如此大量的E和PS RRUs。16个I RRUs中的6个、13个E RRUs中的6个以及3个PS RRUs中的1个向对侧颈脊髓有投射。对76个I RRUs和38个E RRUs进行了“无I期充气”测试，其中29个I RRUs被鉴定为Iα，31个为Iβ。在先前的肺充气过程中，13个E RRUs被抑制，6个被促进。迄今为止，在猫脑干不同核团中报道的几乎所有类型的呼吸神经元都已在兔子的NTS区域中定位。