Biomolecules & Therapeutics
- 제1권1호
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- Pages.37-43
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- 1993
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- 1976-9148(pISSN)
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- 2005-4483(eISSN)
복외측 하부연수의 전기자극이 고양이의 척수후각세포의 활성에 미치는 영향
Effects of Electrical Stimulation of the Caudal Ventrolateral Medulla on the Activity of Dorsal Horn Neurons of the Spinal Cord in the Cat
초록
Electrical or chemical stimulation of many areas in the brainstem modulates activity of dorsal horn neurons (DHN). This is known to be mediated by a population of bulbospinal neurons. Yet, little is known about responses of DHNs to stimulation of the caudal ventrolateral medulla (CVLM). Thus, the purpose of the present study is to see if there is any change in activity of DHNs when CVLM is stimulated electrically. Thirty-one DHNs were recorded from dorsal horn of the spinal cord. Fourteen DHNs (45%) were classified as wide dynamic range neurons and 9 (19%) were high threshold cells, and 4 (13%) and 4 (13%) were deep and low threshold neurons, respectively. Among 31 neurons tested for responses to stimulation of CVLM, 21 DHNs (68%) were inhibited by the electrical stimulation of CVLM (