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Qiao X.-L.,Tianjin Nankai Hospital | Xiao X.-F.,Tianjin University of Traditional Chinese Medicine | Zhou D.-Z.,Tianjin Tasly Pride Pharmaceutical Co. | Ye Z.-L.,Tianjin Tasly Pride Pharmaceutical Co. | And 4 more authors.
Chinese Traditional and Herbal Drugs | Year: 2014

Objective: To establish a UPLC-MS/MS analytical method for the simultaneous analysis of ginsenosides (ginsenosides Rb1, Re, Rg1, Rc, Rd, Rf, Rg3, F2, and notoginsenoside R1) and lignans (gomisin A, schisandrol B, deoxyschizandrin, and schisandrin B) in Yiqi Fumai Injection (freeze-dried) (YFI), and measure the contents of these constituents in YFI. Methods: Quantitative research of 13 components in YFI was done by reversed-phase liquid chromatography on a C18 column using a gradient elution (0.1% formic acid in water and 0.1% formic acid in methanol). A triple quadrupole mass spectrometer operating in positive electrospray ionization mode with multiple reaction monitoring was used. Results: Thirteen components in YFI have good linear relationship, precision, stability, and repeatability according to the requirements of the methodology determination. The recoveries were 98.28%-101.08%. The 13 components in three batches of YFI were determined by UPLC-MS/MS method. Conclusion: The developed UPLC-MS/MS method is simple, sensitive, and accurate, and has good repeatability. The 13 components in YFI could be rapidly and accurately quantified by UPLC-MS/MS, which provides the helpful information for the comprehensive quality evaluation of YFI. ©, 2014, Editorial Office of Chinese Traditional and Herbal Drugs. All right reserved. Source


Tian X.,Tianjin University of Traditional Chinese Medicine | Tian X.,Tianjin International Joint Academy of Biotechnology & Medicine | Liu J.,Tianjin University of Traditional Chinese Medicine | Liu J.,Tianjin International Joint Academy of Biotechnology & Medicine | And 7 more authors.
Mitochondrial DNA | Year: 2015

The giant Asian mantis Hierodula formosana (Mantodea: Mantidae) is widely distributed in Taiwan. In the present study, we investigated the complete mitochondrial genome of H. formosana and the mitogenome is 16 266 bp in length. The circular molecule consists of 13 protein-coding genes, 2 ribosomal RNA genes, 22 transfer RNA genes, and a non-coding control region, with an AT content of 75.8%. An extra non-coding region is inserted between trnM and ND2, similar to the other Mantidae species T. tamolana. A preliminary phylogenetic analysis has been carried out with 11 related species and the status of Hierodula formosana is further confirmed. © 2015 Taylor & Francis. Source


Tian X.,Tianjin University of Traditional Chinese Medicine | Tian X.,Tianjin International Joint Academy of Biotechnology & Medicine | Ma G.,Tianjin University of Traditional Chinese Medicine | Ma G.,Tianjin International Joint Academy of Biotechnology & Medicine | And 8 more authors.
Mitochondrial DNA | Year: 2015

The first complete mitochondrial genome in Blaberidae has been reported in this research. Opisthoplatia orientalis (Blaberidae, Epilamprinae) known as ground cockroach with golden edge is distributed in East and South Asia and widely used for thrombolytic therapy in China. Meanwhile, Blaptica dubia (Blaberidae, Blaberinae) has been adopted as feeder insect for various kinds of pets all over the world. In the present study, we investigated the complete mitochondrial genome of O. orientalis and B. dubia, and the mitogenome is 18 724  and 17 340 bp in length, respectively. The circular molecule consists of 13 protein coding genes, 2 ribosomal RNA genes, 22 transfer RNA genes, and a non-coding control region, with an AT content of 75.7% for O. orientalis and 72.8% for B. dubia. A preliminary phylogenetic analysis has been carried out with 11 related species and the status of these two species is further confirmed. © 2015 Taylor & Francis. Source


Wang J.,Tianjin University of Traditional Chinese Medicine | Wang J.,Tianjin International Joint Academy of Biotechnology & Medicine | Lu C.-S.,Tianjin University of Traditional Chinese Medicine | Lu C.-S.,Tianjin International Joint Academy of Biotechnology & Medicine | And 7 more authors.
Journal of Asian Natural Products Research | Year: 2016

A new saponin, isonarthogenin 3-O-β-d-glucopyranosyl-(1→4)-β-d-galactopyranoside (1), together with twelve known compounds, were isolated from the rhizomes of Polygonatum sibiricum. The structures of these compounds were elucidated by analysis of their 1D/2D NMR and MS data. Among them, phenol compounds 4–7 and 9–10 showed significant inhibitions against the formation of advanced glycosylation end products, with IC50 values of 0.091 ± 0.0021, 0.10 ± 0.041, 0.014 ± 0.0027, 0.11 ± 0.011, 0.13 ± 0.045, and 0.055 ± 0.019 μM, respectively. The results will promote exploiting potential medicinal use of these compounds in the prevention of diabetic complications and supporting Polygonatum sibiricum as a functional food for healthy and medicinal diet. © 2016 Taylor & Francis Source


Dong S.,Nankai University | Dong S.,Tianjin International Joint Academy of Biotechnology & Medicine | Yang P.,Nankai University | Yang P.,Tianjin International Joint Academy of Biotechnology & Medicine | And 15 more authors.
Protein and Cell | Year: 2015

Ebola virus (EBOV) is a key member of Filoviridae family and causes severe human infectious diseases with high morbidity and mortality. As a typical negative-sense single-stranded RNA (−ssRNA) viruses, EBOV possess a nucleocapsid protein (NP) to facilitate genomic RNA encapsidation to form viral ribonucleoprotein complex (RNP) together with genome RNA and polymerase, which plays the most essential role in virus proliferation cycle. However, the mechanism of EBOV RNP formation remains unclear. In this work, we solved the high resolution structure of core domain of EBOV NP. The polypeptide of EBOV NP core domain (NPcore) possesses an N-lobe and C-lobe to clamp a RNA binding groove, presenting similarities with the structures of the other reported viral NPs encoded by the members from Mononegavirales order. Most strikingly, a hydrophobic pocket at the surface of the C-lobe is occupied by an α-helix of EBOV NPcore itself, which is highly conserved among filoviridae family. Combined with other biochemical and biophysical evidences, our results provides great potential for understanding the mechanism underlying EBOV RNP formation via the mobility of EBOV NP element and enables the development of antiviral therapies targeting EBOV RNP formation. © 2015, The Author(s). Source

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