1.Discussion on Regulatory Risk of in Vitro Diagnostic Reagents in Use.
Zhe LI ; Haixin JIANG ; Jingke WANG ; Jiefang SHEN
Chinese Journal of Medical Instrumentation 2018;42(1):62-63
According to the information of the supervision and inspection of in vitro diagnostic reagents for clinical use, this article analyzed the compliance issues and discussed the methods to solve the problems, to urge medical institutions to reduce the regulatory risk of in vitro diagnostic reagents in use.
Government Regulation
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Indicators and Reagents
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adverse effects
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Risk
2.Analysis of Ancient Literature and Modern Clinical Application of Tuoli Xiaodusan
Shunxi WANG ; Weilu NIU ; Xuewei LIU ; Jingke GENG ; Mengyue LI
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(8):176-186
Tuoli Xiaodusan is the 65th formula in the Catalogue of Ancient Famous Classical Formulas(First Batch). In this study, the bibliometric method was used to summarize and verify the ancient books about Tuoli Xiaodusan in terms of its historical origin, composition and dosage of the formula, indications, decoction and administration method, and processing, etc. According to the research, there is no definite date of the formation of Tuoli Xiaodusan, the earliest can be traced back to Lizhai Waike Fahui in Ming dynasty, which has been widely circulated, with many versions of prescription composition, and the modern influential version is from Waike Zhengzong in Ming dynasty, which is made up of 12 Chinese herbs including Ginseng Radix et Rhizoma(3.73 g), Chuanxiong Rhizoma(3.73 g), Paeoniae Radix Alba(3.73 g), Astragali Radix(3.73 g), Angelicae Sinensis Radix(3.73 g), Atractylodis Macrocephalae Rhizoma(3.73 g), Poria(3.73 g), Lonicerae Japonicae Flos(3.73 g), Angelicae Dahuricae Radix(1.87 g), Glycyrrhizae Radix et Rhizoma(1.87 g), Gleditsiae Spina(1.87 g), Platycodonis Radix(1.87 g). The herb origins almost follow the 2020 edition of Chinese Pharmacopoeia, except that Angelica dahurica var. formosana is only recommended as the origin of Angelicae Dahuricae Radix, and Glycryyhiza uralensis is only recommended as the origin of Glycyrrhizae Radix et Rhizoma. All the herbs are recommended to be used in the raw products. As for the preparation method, it is recommended to decoct with water, add 400 mL of water, boil until 160 mL, and take 2-3 times a day. The formula has the functions of nourishing Qi and nourishing blood, detoxifying and draining pus, and was mainly used to treat ulcerative diseases with the syndrome of syndrome of healthy Qi deficiency and pathogenic factors excess in ancient times, and in modern times, it is used for a wide range of treatment, involving the skin and soft tissues, bones, digestion and many other systemic diseases, and is also mainly used for syndrome of healthy Qi deficiency and pathogenic factors excess. In this study, the ancient and modern applications of Tuoli Xiaodusan were summarized, and its key information was identified, providing a basis for its wider clinical application, in-depth research and formulation development.
3.Analysis of volatile constituents in different parts of Huai chrysanthemum by GC-MS combined with stoichiometry
Mengzhen GUO ; Meng LI ; Xiaoyan DENG ; Shuyan LIU ; Xiaolan WANG ; Xiaoya SUN ; Jingke ZHANG ; Xiaoke ZHENG ; Weisheng FENG
China Pharmacist 2024;27(2):209-219
Objective To analyze and identify the volatile constituents in different parts(flowers,stems and leaves)of Huai chrysanthemumin,and to lay a theoretical foundation for the comprehensive utilization for it.Methods The volatile oil in different parts of Huai chrysanthemumin were extracted by hydrodistillation,respectively.Their constituents were analyzed by gas chromatography-mass spectrometry(GC-MS).The compounds were identified by library search and literature screening.The relative percentage of each compound was obtained by the area normalization method.The differences in their chemical compositions were analyzed by Venn diagram,principal component analysis(PCA)and cluster heat map analysis.Results A total of 62 volatile chemical components were identified from different parts of Huai chrysanthemumin,including monoterpenes,sesquiterpenes,and their derivatives,as well as a small amount of aliphatic compounds.32,42 and 40 volatile components were detected from the flowers,stems and flowers,respectively.Furthermore 17 volatile components were shared by three parts,whereas 5,6 and 16 volatile components were unique to the flowers,stems and leaves,respectively.The results of stoichiometric analysis showed that both PCA and cluster heat map analysis could separate the flowers,stems and leaves,and their volatile components were different.Conclusion The types and contents of the volatile oil in the stems,leaves and flowers of Huai chrysanthemumin have certain variability,which provide a scientific basis for the further medicinal or industrial exploitation of different parts of Huai chrysanthemumin.
4.Comparison of liposoluble constituents and study on in vitro antioxidant activities of different processed products of Huaizhong No. 1 Rehmannia glutionsa
Meng LI ; Ying YANG ; Xiaoyan DENG ; Jingke ZHANG ; Shengchao WANG ; Xiaoya SUN ; Xiaoke ZHENG ; Weisheng FENG
China Pharmacy 2022;33(5):563-568
OBJECTIVE To co mpare the difference of liposoluble constitue nts in different processed products of Huaizhong No.1 Rehmannia glutionsa (fresh R. glutionsa ,R. glutionsa and prepared R. glutionsa ),and to evaluate its in vitro antioxidant activity preliminarily. METHODS Liposoluble extracts were extracted from 3 processed products of R. glutionsa by Soxhlet extraction. Their constituents were analyzed by gas chromatography-mass spectrometry. The spectral library of NIST 98 system was used to automatically retrieve the mass spectrum information of components ,and the structures of compounds were identified in combination with relevant literature and by comparing with eight peak index and EPA/NIH library. Relative contents of the components were calculated by using peak area normalization method with Hewlett Packard software. The antioxidant activities of liposoluble constituents in 3 processed products of R. glutionsa were investigated by 1,1-diphenyl-2-picrylhydrazyl(DPPH)free radical scavenging. RESULTS A total of 79 liposoluble components were identified from different processed products of R. glutionsa,and 48,52 and 37 liposoluble compounds were identified from fresh R. glutionsa ,R. glutionsa and prepared R. glutionsa,respectively;their relative contents accounted for 92.69%,86.29%,92.89% of the total components respectively. Among them ,there were 20 liposoluble compounds totally ,and their relative contents accounted for 88.73%,80.89% and 85.87% of liposoluble components in each processed product respectively ;they were mainly composed of fatty acids such as methyl linoleate,methyl palmitate and methyl oleate. In addition ,there were 18 unique liposoluble components in fresh R. glutionsa , mostly terpenoids ;there were 17 and 6 unique liposoluble components in R. glutionsa and prepared R. glutionsa ,mostly alkanes. The results of antioxidant experiment showed that median scavenging concentrations of liposoluble components to DPPH limeng free radical were 0.756,0.660,0.758 mg/mL,respectively. CONCLUSIONS The common liposoluble components in different processed products of R. glutionsa are mostly acids;the unique liposoluble components in fresh R. glutionsa are mostly terpenoids ,and those of R. glutionsa and prepared R. glutionsa are mostly alkanes ;the liposoluble constituents possess in vitro antioxidant activities.