Modulation of an aqueous extract of Chinese medicine prescription Anzi Heji () on ratio of CD4CD25FOXP3 regulatory T cells in anticardiolipin antibody-positive patients with threatened abortion.

Objective: To evaluate Chinese medicine prescription, Anzi Heji (, AZHJ), on immune regulation of CD4CD25FOXP3 regulatory T cells (Tregs) in anticardiolipin antibody (ACA)-positive patients with threatened abortion.

Methods: Twenty-seven ACA-positive female patients with threatened abortion in the study group were treated with an aqueous extract of AZHJ 125 mL, twice daily for 4 consecutive weeks. The results were compared with control group composed by 15 healthy pregnant women.