2.Literature review on premarketing and postmarketing evidence of xiyanping injection.
Zhi-Fei WANG ; Xiao CHEN ; Wen ZHANG ; Yan-Ming XIE
China Journal of Chinese Materia Medica 2014;39(18):3637-3640
This article systematically summarizes the non-clinical safety studies, pharmacological studies and postmarketing safety studies of Xiyanping injection based on literature. These studies include acute toxicity test, long-term toxicity test, reproductive toxicity test, active and passive anaphylaxis test, curative mechanism study, clinical trials of effectiveness, active surveillance, security analysis of passive monitoring data, the real world analysis of hospital information system (HIS) data, literature analysis, etcetera This article also analysis the relationship of the different evidence, summarizes the strategy of the researches, in order to make it to be a reference for making a systemic research program of traditional Chinese medicine injection.
Drugs, Chinese Herbal
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administration & dosage
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adverse effects
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Injections
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Medicine, Chinese Traditional
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methods
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Product Surveillance, Postmarketing
5.Diagnosis and treatment of lacrimal passage obstruction by lacrimal endoscope.
Zhi, WANG ; Yukan, HUANG ; Wen, CHEN ; Wei, CHEN ; Mingchang, ZHANG ; Fei, CHEN
Journal of Huazhong University of Science and Technology (Medical Sciences) 2007;27(5):593-7
The diagnosis and treatment of the lacrimal passage obstruction with lacrimal endoscope was investigated and its subsidiary surgical procedures were evaluated. Ninety-three patients (109 eyes) with lacrimal passage obstruction, including presaccal canalicular obstruction (PSCO) and nasolacrimal duct obstruction (NLDO), were examined under a lacrimal endoscope, and the obstructions were treated with laser or micro-drill. All patients were followed up after the operation for 3-6 months. The difference between the laser and the micro-drill treatment was observed. During the period of follow-up, the curative rate was 82.57%. The healing rate in PSCO group and NLDO was 80.36% and 84.91% respectively (P>0.05). After treatment with the laser, the healing rate was 93.33% in the PSCO group and 66.67% in the NLDO group respectively (P<0.05). After treatment with the micro-drill, the healing rate in PSCO and NLDO groups was 65.39% and 94.28% respectively (P<0.01). The lacrimal passage obstruction can be observed and treated directly through the lacrimal endoscope. Choosing different surgical procedures in operation according to the locations of the obstruction is helpful to improve the effectiveness.
Endoscopy/*methods
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Follow-Up Studies
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Lacrimal Duct Obstruction/*diagnosis
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Lacrimal Duct Obstruction/*surgery
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Laser Therapy/*methods
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Young Adult
6.The mechanism of toxicity enhancement with the combination of Flos Genkwa and Radix et Rhizoma Glycyrrhizae based on the solubilization of glycyrrhizic acid
Yu-qin YANG ; Fei-fei LI ; Shan CHEN ; Zhi-jia WANG ; Peng-long WANG ; Hai-min LEI
Acta Pharmaceutica Sinica 2021;56(9):2561-2566
In order to study the contraindications of the compatibility of Flos Genkwa-Radix et Rhizoma Glycyrrhizae, in this study, the solubilizing and poisoning essence were explored. In this experiment, chromatographic assay, field emission scanning electron microscopy, MTT cytotoxicity evaluation, and other methods were used to study the main chemical components, morphology and toxicity of the ethyl acetate part of Flos Genkwa and its co-decoction with glycyrrhizic acid, in order to clarify Flos Genkwa-Radix et Rhizoma Glycyrrhizae incompatibility provides a new idea for the research on incompatibility of Flos Genkwa-Radix et Rhizoma Glycyrrhizae. The results showed that after co-decoction of the ethyl acetate part of Flos Genkwa with glycyrrhizic acid, high performance liquid chromatography (HPLC) detected the dissolution of the toxic component yuanhuacine of 54.8%, while yuanhuacine chromatographic peak was not detected in the Flos Genkwa ethyl acetate part of the single decoction. The increase of co-decoction dissolution rate was observed by scanning electron microscopy, and it was found that glycyrrhizic acid uniformly dispersed the fat-soluble components of Flos Genkwa into nano-scale particles, which improved the solubility and stability in the solution. Furthermore, the results of cytotoxicity evaluation showed that the survival rate of cells decreased after co-decoction, 4',6-diamidino-2-phenylindole (DAPI) staining also gave the same results. In summary, the co-decoction of the ethyl acetate part of Flos Genkwa with glycyrrhizic acid promotes the dissolution of the toxic component yuanhuacine, and makes the part form uniformly distributed nanoparticles, which is conducive to the absorption of the ingredient and increases the toxicity.
7.SAR of benzoyl sulfathiazole derivatives as PTP1B inhibitors.
Wen-Wen YIN ; Zheng CHEN ; Yan-Bo TANG ; Fei YE ; Jin-Ying TIAN ; Zhi-Yan XIAO
Acta Pharmaceutica Sinica 2014;49(5):632-638
Protein tyrosine phosphatase (PTP) 1B is a potential target for the treatment of diabetes and obesity. We have previously identified the benzoyl sulfathiazole derivative II as a non-competitive PTP1B inhibitor with in vivo insulin sensitizing effects. Preliminary SAR study on this compound series has been carried out herein, and thirteen new compounds have been designed and synthesized. Among them, compound 10 exhibited potent inhibition against human recombinant PTP1B with the IC50 value of 3.97 micromol x L(-1), and is comparable to that of compound II.
Humans
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Protein Tyrosine Phosphatase, Non-Receptor Type 1
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antagonists & inhibitors
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Structure-Activity Relationship
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Sulfathiazoles
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chemistry
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pharmacology
8.Cloning and functional characterization of a cDNA encoding isopentenyl diphosphate isomerase involved in taxol biosynthesis in Taxus media.
Tian SHEN ; Fei QIU ; Min CHEN ; Xiao-zhong LAN ; Zhi-hua LIAO
Acta Pharmaceutica Sinica 2015;50(5):621-626
Taxol is one of the most potent anti-cancer agents, which is extracted from the plants of Taxus species. Isopentenyl diphosphate isomerase (IPI) catalyzes the reversible transformation between IPP and DMAPP, both of which are the general 5-carbon precursors for taxol biosynthesis. In the present study, a new gene encoding IPI was cloned from Taxus media (namely TmIPI with the GenBank Accession Number KP970677) for the first time. The full-length cDNA of TmIPI was 1 232 bps encoding a polypeptide with 233 amino acids, in which the conserved domain Nudix was found. Bioinformatic analysis indicated that the sequence of TmIPI was highly similar to those of other plant IPI proteins, and the phylogenetic analysis showed that there were two clades of plant IPI proteins, including IPIs of angiosperm plants and IPIs of gymnosperm plants. TmIPI belonged to the clade of gymnosperm plant IPIs, and this was consistent with the fact that Taxus media is a plant species of gymnosperm. Southern blotting analysis demonstrated that there was a gene family of IPI in Taxus media. Finally, functional verification was applied to identify the function of TmIPI. The results showed that biosynthesis of β-carotenoid was enhanced by overexpressing TmIPI in the engineered E. coli strain, and this suggested that TmIPI might be a key gene involved in isoprenoid/terpenoid biosynthesis.
Amino Acid Sequence
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Carbon-Carbon Double Bond Isomerases
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genetics
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Cloning, Molecular
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DNA, Complementary
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genetics
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Escherichia coli
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Paclitaxel
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biosynthesis
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Phylogeny
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Plant Proteins
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genetics
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Taxus
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enzymology
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genetics
9.The clinical observation of oxaliplatin combined with capecitabin for patients with advanced colorectal cancer
Xin-Jian RUAN ; Jian-Fei WANG ; Zhi GUO ; Zhao-Liang CHEN ; Xia ZHANG ;
Cancer Research and Clinic 2000;0(06):-
Objective To observe the therapeutic effect and toxicity reaction of Oxaliplatin com- bined with XeLoda in the treatment of 42 patients with advanced colorectal cancer.Methods All the pa- tients were treated with Oxaliplatin(130 mg/m~2,ivgtt for 2 h,d1)combined with XeLoda(2000 mg?m~(-2)?d~(-1), po,bid,d1 to d14).The regime was repeated every 21 days for at least 3 consecutive cycles.Results The to- tal response rate was 40.5%(17/42)in which 2 got CR and 15 PR.24 patients got Kamofsky score increased. The major toxic effects were alopecia,peripheral neuritis,gastrointestinal tract reactions and myelosuppression. Conclusion Oxaliplatin combined with XeLoda regimen is effective in the treatment of advanced colorectal cancer,and its toxicity is tolerable.It is worth studying in the future.
10.Short-term results of cutting balloon and intravascular brachytherapy for the treatment of coronary in-stent restenosis
Fei YE ; Shao-Liang CHEN ; Bao-Xiang DUAN ; Jin HUANG ; Zhi-Zhong LIU ; Jie SONG ;
Chinese Journal of Clinical Pharmacology and Therapeutics 1999;0(04):-
0.05); the levels of LL, LI, RRS in CBA group and CBA+IBT group were significantly lower than those in control group(P