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논문KCI 등재

흰쥐 악하선에서 교감신경과 부교감신경에 의한 나트륨 운반체 및 수분 통로 조절

Altered expression of sodium transporters and water channels following sympathetic and parasympathetic denervation in rat submandibular gland

유선열|김기영
대한구강악안면외과학회 (Korean Association Of Oral And Maxillofacial Surgeons)|2005.02|대한구강악안면외과학회지 (Journal of the Korean Association of Oral and Maxillofacial Surgeons)|제31권 제1호|pp. 24-30

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참고문헌

주제분류치의학

초록

Abstract

The flow of saliva is controlled entirely by nervous stimuli. The present study was aimed to explore the role of sympathetic and parasympathetic nerves in the regulation of sodium transporters and water channels in the salivary gland. Rats were denervated of their sympathetic and parasympathetic nerves to the submandibular gland, and the expression of sodium transporters and water channels was determined. The expression of either α-1 or β-1 subunit of Na,K-ATPase was not significantly affected by the sympathetic denervation. On the contrary, the expression of both subunits was decreased by the parasympathetic denervation. The expression of α-, β-, and γ-subunits of ENaC was not significantly affected by the sympathetic denervation, but was increased by the parasympathetic denervation. On the contrary, the expression of NHE3 was markedly decreased by both the sympathetic and the parasympathetic denervation. The sympathetic denervation significantly increased the expression of AQP1, while the parasympathetic denervation was without effect. The sympathetic and parasympathetic denervation significantly increased the expression of AQP4. The sympathetic denervation did not affect the expression of AQP5, but the parasympathetic denervation significantly decreased it. These results suggest that sympathetic and parasympathetic nerves have tonic effects on the regulation of sodium transporters and AQP water channels in the salivary gland. The sympathetic and parasympathetic denervation may then result in alterations of secretory rate and electrolyte composition of the saliva.

참고문헌 (34)

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