Recent Advance in Studies on Angelica sinensis

Angelicae Sinensis Radix (ASR) is the root of Angelica sinensis which is a fragrant and perennial herb native to China, Japan, and Korea. In traditional Chinese medicine (TCM), the plant is useful for replenishing and invigorating blood, relieving pain, and moistening the intestines, resulting in its application for the treatment of menstrual disorders, and as an emollient and laxative for chronic constipation of the aged and debilitated. An in-depth review of the literature brings to light a great number of chemical constituents that have been isolated from ASR as well as both preclinical (in vivo and in vitro) and clinical studies, which over the years, have sought to investigate the medicinal relevance of some of these phytoconstituents and/or extract(s) prepared from ASR. The purpose of this review is therefore to present some major pharmacological and pharmacokinetic research findings on some selected phytoconstituents of ASR with emphasis on the current trends in terms of research techniques or design. This review would also provide a wealth of information for users/practitioners of TCM regarding the use of ASR or its products for maximum efficiency and minimal toxicity or side effects.