In a recent systematic review of 40 trials involving 4858 participants, scientists found that stimulation of the wrist acupuncture point P6 is as effective as standard antiemetic drugs in preventing postoperative nausea and vomiting (Lee A and Fan LT. Cochrane Database Syst Rev. 2009 Apr 15;(2):CD003281).
In another recent systematic review of 15 randomized controlled trials, researchers found supporting evidence for acupuncture usage in the acute postoperative pain management (Sun Y, et al. Br J Anaesth. 2008 Aug;101(2):151-60).
However, most of so-called scientific studies have drawn contraversial conclusions as to the efficacy and mechanisms of acupuncture due to limitations of modern scientific research methods. Although a bioenergetic model has been developed to explain nearly all aspects of acupuncture and channel theory, more evidence can be obtained through using the emerging systems biological research approaches, such as microarray assays or RNA-seq, proteomics.
Science of Chinese Medical Herbs
It is almost impossible to find any consistent scientific evidence for Chinese herbs in the literature. We found that one reason for this phenomenon is the prevailing wrong experimental design based on the assumption that a specialist should be good at everything beyond his/her specialty. For example, ginseng is very powerful in nourishing Qi and should only be used by patients with Qi-deficiency. But many trials enrolled healthy people to validate the efficacy of ginseng. Then a systematic reviewer drew a conclusion that ginseng did not show consistent positive effects on something. To learn more about this topic, please download our paper here.