OBJECTIVETo study the impact of Shangjuxu (ST 37) with acupuncture on each zang fu organ in human body so as to provide the objective evidence of the efficacy induced by acupuncture on gastrointestinal system and other organs.

METHODSShangjuxu (ST 37) was punctured bilaterally. The biological energy information medical diagnosis apparatus was applied to observe the changes in the energy in every part of human body before acupuncture and 10 min, 1 h and 24 h after acupuncture separately.

RESULTSAcupuncture on this point not only adjusted the digestive functions in esophagus, stomach, rectum and other parts, but also affected the functions of other organs, such as lung, uterus/prostate gland, thymus and spines, resulting in either rising or falling of the energy. The maximal peak value of the change happened 1 h after acupuncture.

CONCLUSION(1) Shangjuxu (ST 37) works mainly on rectum in the adjustment of large intestine functions and induces quite large impacts also on the energy changes of esophagus and stomach. (2) The energy changes in other organs, such as thymus, lung, reproductive organ and spine reveal that the actual indications of ST 37 may exceed to the currently-recognized range. (3) The peak value of the effect produced by acupuncture presents in 1 h after needling.