二月蘭是我們對數(shù)百種天然植物進行毒理學解毒劑研究時挖掘出來的保肝功效性植物。從初識二月蘭到本書的編寫，經歷了十七年以上的系統(tǒng)性研究，在一定程度上揭開了二月蘭的神秘面紗，可以讓社會來共享我們的原創(chuàng)性科研成果，為人類衛(wèi)生保健貢獻我們的一份力量了。
本書的章節(jié)結構基本源于我們的實踐，我們在校園進行二月蘭種植實踐、研究了二月蘭的安全性和有用性以及有效成分單體。本書成書的過程也是培養(yǎng)研究生和廣泛合作的過程。為了方便廣大讀者，本書采用了圖文并舉和中英文雙語模式，盡量做到通俗易懂。
本書由國家重點研發(fā)計劃“基于辨證保健的中藥復方保健產品評價技術體系研究及示范平臺的建立（2018YFC1706800）”資助。本書在編寫過程中得到了全部作者的大力支持，也得到了出版社的熱心幫助，在此一并感謝！
我們對二月蘭的研究還在繼續(xù)當中。由于水平有限，書中難免有不妥之處。誠懇期望讀者不吝賜教，以便在本書再版時予以糾正。

張寶旭 醫(yī)學博士
北京大學公共衛(wèi)生學院毒理學系
北京大學國家中醫(yī)藥管理局中藥配伍減毒重點研究室
Email：bxzhang@bjmu.edu.cn





Preface
Orycho (Orychophragmus Violaceus) is a plant with liverprotecting effect, which was excavated when we studied toxicological antidotes of hundreds of natural plants. After more than seventeen years' systematic research, the mystery of orycho has been unveiled to a certain extent, which allows the society to share our original scientific research achievements and contributes to human health promotion.
The organization of this book is basically derived from our practice. We planted orycho on campus, and studied the safety and usefulness of orycho and the monomer of the active ingredients. The process of completing this book is also a process of training graduate students and extensive cooperation. In order to facilitate the readers, this book is wellillustrated, bilingual in both Chinese and English, so as to make it easy to understand.
The book is funded by the National Key R&D Program （2018YFC1706800）. In the process of writing this book, we received strong support from all the authors, and kind assistance from the publishing house. Thanks here!
Our research on orycho is still ongoing. Due to the limited level, mistakes are inevitable in the book. I sincerely hope that readers will kindly give us advice so as to improve this book when it is reprinted.

Baoxu Zhang, M,D.
Department of Toxicology, School of Public Health, Peking
University
Peking university state administration of traditional chinese
medicine primary laboratory of Chinese medicine compatibility
and detoxification
Email： bxzhang@bjmu.edu.cn