針刺外關(SJ5)對甲襞微循環微血管之作用

目的　藉由針刺對甲襞微循環微血管的效用，進一步探討針刺之作用生理機制。方法　本研究以38位年輕女性自願者為對象，分別針刺右手或左手外關(SJ5)記錄針刺前、針刺後5分鐘、10分鐘、15分鐘和20分鐘時，以及出針後5分鐘、10分鐘時右手中指甲襞微循環微血管包括微血管輸入枝、輸出枝的長度和寬度，管絆頂寬和管間距的變化。結果　針刺右手外關對甲襞微循環微血管之輸入枝寬度和管間距沒有作用，但針刺左手外關則能減少輸入枝寬度和管間距。針刺右手或左手外關都能減少甲襞微循環微血管之輸入枝和輸出枝長度，輸出枝寬度和管絆頂寬，針刺作用持續至出針後10分鐘。結論　針刺是經由大腦皮質的調節對甲襞微循環產生作用，而神經節段性的活化也扮演部分的角色。

關鍵字

針刺；甲襞微循環；外關

並列摘要

Purpose. To study the physiological effect of acupuncture stimulation on microcirculation. Methods. A total of 38 female volunteers were studied. Nailfold microcirculation in the middle finger of the right hand was recorded before, and then after 5 min, 10 min, 15 min and 20 min of acupuncture stimulation at Waiguan (SJ5) of the right or left hand; nailfold microcirculation was also recorded 5 min and 10 min after stopping acupuncture stimulation. The changes in nailfold microcirculation observed in this study included the length and width of afferent and efferent loops, the width of the loop peak, and the distance of the inter-loop. Results. Acupuncture stimulation at Waiguan of the right hand did not induce changes in nailfold microcirculation afferent loop width or inter-loop distance; however, afferent loop width and inter-loop distance were reduced by acupuncture stimulation at the Waiguan of the left hand. Acupuncture stimulation at the Waiguan of the right and left hands reduced the length of afferent and efferent loops, width of efferent loop and the width of loop peak; these effects were maintained for 10 min after discontuing acupuncture stimulation. Conclusions. Acupuncture affects nailfold microcirculation via modulation of the cerebral cortex, and in part by segmental activation of the spinal nerve.

並列關鍵字

acupuncture ； nailfold microcirculation ； Waiguan

國際替代計量

針刺外關(SJ5)對甲襞微循環微血管之作用

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