" 

 Here is another reference.  More of the same as far as I can tell from the abstract:  Yes, reiki has a significant effect, at a high level of confidence, but no placebo control group.  ""Biological correlates of Reiki Touchsm healing"" Diane Wind Wardell PhD RNC, Joan Engebretson DrPH RNC (2001); Journal of Advanced Nursing 33 (4), 439–445  "