China Journal of Chinese Materia Medica, the 1st in the field of TCM, is supervised by China Association for Science and Technology and sponsored by Institute of Chinese Pharmaceutical Association. The journal is China's earliest comprehensive core journal of traditional Chinese medicine, and always maintains the circulation top in the professional areas. The journal publishes the latest research and progress of traditional Chinese medicine and takes a leading position in numbers of articles published, downloads and citations among all journals in this discipline.
Its scope covers new achievements, technologies, methods, experiences and concepts resulting from the research on Chinese materia medica pursuant to Chinese medical and pharmaceutical theories, traditional experiences, and modern science and technology, including medicinal resources and identification, cultivation, processing, preparation, chemistry, pharmacology, theory of Chinese pharmacy and clinical practice, bencaological study.
The journal is included in CA, JST and CSCD.
Honorary Editor-in-Chief Xiao Peigen Editor-in-Chief Wang Yongyan
Associate Editors Zhang Boli, Hu Zhibi, Yao Xinsheng, Li Lianda, Li Dapeng, Yang Baofeng, Zhou Chaofan, Huang Luqi, Chen Shilin, Li He.
Executive Editorial Board Cai Shaoqing, Chen Shilin
Kaurenoic acid oxidase is involved in biosynthesis pathway of gibberellin. According to the transcriptome database, the specific primers were designed and used in cloning the full-length cDNA of TwKAO, the bioinformatic analysis of the sequence was performed. The qRT-PCR were used to detect the expression level of TwKAO after MeJA treatment. The full-length cDNA of the TwKAO was 1 874 bp encoding a polypeptide of 487 amino acids. The calculate molecular weight was about 56.02 k Da, and the theoretical isoelectric point(p I) was 8.89. The relative expression level of TwKAO was deduced by MeJA and reached the highest at 12 h after the treatment. Plant tissue expression analysis indicated that, TwKAO expressed the highest in leaves, while lowest in roots. For the first time, we cloned and analyzed the expression characteristics of TwKAO, which laid a foundation for deep analysis of growing development and terpenoid secondary metabolites in T. wilfordii.
A new neolignan, (−)-(7R, 8S, 7'E)-3', 4-dihydroxy-3-methoxy-8, 4'-oxyneoligna-7'-ene-7, 9, 9'-triol (1), and seven known compounds, 9-(tetrahydropyran-2-yl)-nona-trans, trans-2, 8-diene-4, 6-diyn-1-ol (2), 9-(tetrahydropyran-2-yl)-trans-non-8-ene-4, 6-diyn-1-ol (3), lobetyol (4), lobetyolin(5), dehydrodieoniferyl alcohol (6), 5-hydroxymethylfurfural (7), and 4, 4'-dihydroxy-3, 3'-dimethoxy-trans-stilbene (8), were isolated from the H2O extract of Codonopsis pilosula. The structures of 1-8 were elucidated by spectroscopic methods including NMR, HR-ESI-MS, and CD. In addition, compounds 2 and 3 were isolated from the genus Codonopsis for the first time.
The purpose of the present study is to optimize the concentrate process of alkaloid from Leonurus japonicus by ultrafiltration-nanofiltration coupling technology together with response surface methodology. The experiment showed that after ultrafiltration pre-treatment, the total protein removal rate was 94.38% in aqueous extract from L. japonicus, and the nanofiltration technology had obvious advantages over the conventional concentrate process. The optimal concentrate conditions were as follows: molecular weight cut-off 450, pH 3.07, concentration of stachydrine hydrochloride 80.15 mg·L−1, and concentration of the total alkaloid 285.73 mg·L−1. The rejection was 93.37% and 95.85% respectively for stachydrine hydrochloride and the total alkaloid under the optimum conditions, with the relative error of 0.79% and 1.16% respectively. The combination of Box-Behnken design and response surface analysis can well optimize the concentrate process of L. japonicus by nanofiltration, and the results provide the basis for nanofiltration concentrate for heat-sensitive traditional Chinese medicine.
To explore the effect of the licorice-processed Tripterygium wilfordii on reducing the liver toxicity. In animal experiments, the liver toxicity of T. wilfordii was evaluated both before and after processing, and the differences in liver tissue biopsy, serum biochemical indexes and inflammatory cell factor among blank group, T. wilfordii group and licorice-processed T. wilfordii group were observed. Liver tissue biopsy results showed that liver tissue injury was obvious in T. wilfordii group, and no obvious injury was found in licorice-processed T. wilfordii group. As compared with the blank group, the levels of AST, ALT and CRE were significantly increased (P < 0.01), UREA was increased (P < 0.05), and ALB level was significantly decreased (P < 0.01) in the T. wilfordii group. As compared with T. wilfordii group, the levels of AST, ALT, CRE, and UREA were decreased (P < 0.01), while ALB was increased (P < 0.01) in the licorice-processed T. wilfordii group. The results of inflammatory factors in rats showed that the levels of IL-1β, IL-6, and TNF-α in T. wilfordii group were significantly higher than those in blank group (P < 0.01); the levels of IL-1β, IL-6, and TNF-α in licorice-processed T. wilfordii group were significantly lower than those in T. wilfordii group (P < 0.01). Overall, licorice processing of T. wilfordii can effectively reduce the liver toxicity and reduce the liver injury caused by T. wilfordii. The experiment can provide reference for the clinical rational use of the T. wilfordii, and provide data support for the studies on reducing the liver toxicity of T. wilfordii by licorice processing.
DNA marker-assisted selection of medicinal plants is based on the DNA polymorphism, selects the DNA sequences related to the phenotypes such as high yields, superior quality, stress resistance according to the technologies of molecular hybridization, polymerase chain reaction and high-throughput sequencing, and assists the breeding of new cultivars. This study bred the first disease-resistant cultivar of Panax notoginseng “Miaoxiang Kangqi 1” using the technology of DNA marker-assisted selection of medicinal plants and systematic breeding. The disease-resistant cultivar of P. notoginseng contained 12 special SNPs based on the analysis of Restriction-site Associated DNA Sequencing (RAD-Seq). The SNP (record_519688) was verified to be related to the root rot-resistant characteristics, which indicated this SNP could serve as genetic markers of disease-resistant cultivars and assist the systematic breeding. Compared to the conventional cultivated cultivars, the incidence rate of root rot and rust rot in P. notoginseng seedlings decreased by 83.6% and 71.8%, respectively. The incidence rate of root rot respectively declined by 43.6% and 62.9% in biennial and triennial P. notoginseng cultivation compared with those of the conventional cultivated cultivars. Additionally, the potential disease-resistant groups were screened based on the relative SNP, and this model enlarged the target groups and advanced the breeding efficiency. DNA marker-assisted selection of medicinal plants accelerated the breeding and promotion of new cultivars, and guaranteed the healthy development of Chinese medicinal materials industry.
