. 2003 Apr 8;1:33. doi: 10.1186/1477-7827-1-33

Table 1.

Endothelin-1 (ET-1) concentrations (mean ± SEM) in the ovaries, the adrenal glands, and the hypothalami in the three experimental groups the healthy control group, the polycystic ovary (PCO) control group, and the PCO group receiving electro-acupuncture (EA).

	ET-1 concentrations (pmol/g)

	Healthy control	PCO Control	PCO EA
Ovary	0.44 ± 0.11	0.38 ± 0.14	0.15 ± 0.05^a
Adrenal gland	0.01 ± 0.01	0.05 ± 0.02	0.06 ± 0.04
Hypothalamus	0.14 ± 0.05	0.33 ± 0.10	0.71 ± 0.23^a

^ap < 0.05 when the PCO group receiving EA were compared with the healthy controls.