Neuron Discharge and c-Fos Expression in the Nucleus of the Solitary Tract Following Electroacupuncture at Acupoints of the Yangming Stomach Meridian of Foot
Journal: Journal of Acupuncture and Meridian Studies (Vol.6, No. 2)Publication Date: 2013-04-30
Authors : Jun-Feng He; Jie Yan; Jiang-Shan Li; Jian-Hua Liu; Chao Wang; Xiao-Rong Chang; Ya-Ting Qu;
Page : 82-88
Keywords : acupoints; acupuncture; c-Fos expression; discharge neuron; meridian; nucleus tractus solitarii;
Abstract
The nucleus of the solitary tract (nucleus tractus solitarii; NTS) is a primary center for both visceral afferents and somatic afferents. Previous experiments have demonstrated that the NTS is closely connected to the stomach and acupoints in the Yangming Stomach Meridian of Foot (ST Meridian). In this study, extracellular recording and immunochemistry methods were used to analyze the discharge of neurons and c-Fos protein expression in the NTS following acupuncture at different acupoints and a nonacupoint. A total of 104 discharging neurons were detected in the NTS of 52 rats, of which 86 provided complete data. After acupuncture at Sibai (ST 2), Zusanli (ST 36), Neiting (ST 44), Quanliao (SI 18), and the nonacupoint, the neuron response rate in the NTS was 65.12%, 51.16%, 46.51%, 34.88% and 31.40% respectively. For neuron response rate, there was a significant difference among Sibai (ST 2), Zusanli (ST 36), Neiting (ST 44), Quanliao (SI 18), and the nonacupoint (p
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