Up to a quarter of all women suffer from depression  during pregnancy, and many are reluctant to take antidepressants. Now a new study suggests that acupuncture  may provide some relief during pregnancy, even though it has not been found to be an effective treatment against depression in general.The Stanford University study recruited 150 depressed women who were 12 to 30 weeks pregnant, and randomly assigned 52 to receive acupuncture specifically designed for depressive symptoms, 49 to regular acupuncture and 49 to Swedish massage.

Each woman received 12 sessions of 25 minutes each; those given acupuncture did not know which type they were getting. (In the depression-specific treatment, needles are inserted at body points that are said to correspond to symptoms like anxiety, withdrawal and apathy.)

After eight weeks, almost two-thirds of the women who had depression-specific acupuncture experienced a reduction in at least 50 percent of their symptoms, compared with just under half of the women treated with either massage or regular acupuncture.

There was no significant difference in the rates of complete remission — about a third in each group. The findings appear in the March issue of Obstetrics & Gynecology.

The lead author, Rachel Manber, a professor of psychiatry and behavioral sciences at Stanford, said the results suggested that some symptoms of depression during pregnancy might be related to physical discomfort that is alleviated by acupuncture.

Still, the results were striking, she said, adding, “It’s quite remarkable, especially since the prevalence of depression is highest in the third trimester of pregnancy, so it goes against the course of how you would expect depression to go.”