1.Protective effects of total extract of astragalus(TEA) onprimary rats hepatocytes injured by CCl4 or H2O2
Yan YANG ; Min-Zhu CHEN ;
Chinese Journal of Clinical Pharmacology and Therapeutics 1999;0(04):-
Aim To study the protective effect of total extract of astragalus(TEA) on primary rat hepatocytes injured by CCl4 or H2O2 and its mechanism.Methods The primary hepatocytes were isolated by Ⅳ collaganase and injured by CCl4 or H2O2.The contents of malondialdehyde(MDA) and glutathion(GSH),glutathion peroxidase(GSHpx) activity of hepatocytes and the AST and /or ALT level in cultural supernatant were determined by general methods. Results (1) The elevation of MDA content of hepatocytes and AST level in supernatant of cultural hepatocytes,and the loss of GSH content and GSHpx activity induced by CCl4 were restored remarkably by TEA(5~80 mg?L-1);(2)The elevation of ALT level in the supernatant of hepatocytes and MDA content of hepatocytes, and the loss of GSH content and GSHpx activity induced by H2O2 were improved significantly by TEA(5~80 mg?L-1) treatment.Conclusion The results suggest that TEA possess direct protective action on primary hepatocyte in vitro injured by CCl4 or H2O2. These might be associated with its anti-oxidative activity.
2.Electrogastrographic parameters from 40 healthy subjects 6 to 14 years of age.
Yan YANG ; Hui-min YAN ; Ming LI
Chinese Journal of Pediatrics 2005;43(9):697-698
Adolescent
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Child
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Electromyography
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Female
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Humans
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Male
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Stomach
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physiology
3.Effects of Early Rehabilitation and Insulin Treatment on Acute Cerebral Infarction
Min YANG ; Lei ZHANG ; Yan ZHAO
Chinese Journal of Rehabilitation Theory and Practice 2010;16(1):60-61
ObjectiveTo observe the effect of early rehabilitation and insulin treatment on acute cerebral infarction. Methods160 cases with acute cerebral infarction (without diabetes and the serum glucose were all above 6.7 mmol/L) were divided into treatment group and control group. Each case of both groups was treated with routine treatment, and those in the treatment group were treated with insulin instantly and early rehabilitation in the first day after onset when physical signs were stable and conditions didn't deteriorate. They were assessed with Neurological Impairment, Fugl-Meyer Assessment and Barthel Index 4 weeks after treatment. ResultsCompared with the control group, the neurological function improved obviously in the treated group (P<0.05). ConclusionEarly rehabilitation and insulin treatment can improve neurological function and the activity of daily living.
4.The spread and influence of YunQi theory of TCM in Japan
International Journal of Traditional Chinese Medicine 2009;31(2):111-112
With the frequent culture communication between china and Japan, YanQi theory of TCM spread to Japan and exerted an influence on Japanese medicine. From the volume of"YunQi" in "The literature investigation of TCM", we can tell YunQi theory occupied a major position in the Japanese medical literatures which spread from china. The primary books of YunQi edited by Japanese scholars reveal Japanese doctors are apt to use this theory to promote their clinical practice. The accordant cognition of Chinese and Japanese scholars is that Japanese doctors accept the value of YunQi theory and beware of it's deficiency in clinic.
5.Reference from the Fair PharmaCare Program of BC Canada
Zhenyu YANG ; Min YAN ; Guozhu LIU
China Pharmacy 2001;0(10):-
OBJECTIVE:To introduce the Fair PharmaCare program of BC Canada for the reference of the reform of China's medical insurance system.METHODS:The running procedure of Fair PharmaCare program of BC Canada was introduced in detail and its characteristics were analyzed.RESULTS & CONCLUSIONS:Fair PharmaCare program covers all BC residents and protects them against economic difficulties in pharmacare.The program serves as a reference for the reform of China's medical insurance system.
6.Circulating MicroRNAs and Inflammatory Bowel Disease
Pei DENG ; Min MIN ; Yan LIU ; Guiliang WANG ; Yang XU
Chinese Journal of Gastroenterology 2016;21(2):118-120
MicroRNAs(miRNAs)are a group of non-coding RNA molecules having modulating function,and as a post transcriptional modulating factor is involved in the modulation of expression of eukaryotic genes. Inflammatory bowel disease(IBD)is a chronic non-specific intestinal inflammatory disease and its etiology has not yet been fully clarified. Recent studies have shown that circulating miRNAs were specifically expressed in patients with IBD. This article reviewed the advances in studies on circulating miRNAs and IBD.
7.Application of a novel endoscopic suture device to endoscopic submucosal dissection
Yan LIU ; Yang XU ; Min MIN ; Wei SHEN
Chinese Journal of Digestive Endoscopy 2016;(1):45-48
Objective To evaluate a new suture coil in endoscopic submucosal dissection (ESD). Methods Data of 15 patients with early gastrointestinal cancer undergoing ESD were retrospectively ana?lyzed. The edge of the lesion was pulled up by the new coil?assisted suture for the submucosal layer to be full?y revealed, then the submucosa were dissected,and the wound was stitched by suture coil. The success rate and complications were evaluated. Results The lesions were successfully resected in 15 patients. By pull?up, the submucosal blood vessels were completely revealed. No intraoperative uncontrollable bleeding oc?curred. Small perforation occurred in one patient, and was well stitched by the suture coil. The pull?ups were successfully completed in all patients, and the operation time was 5?10 min. The intraoperative slippage of fixed titanium clips occurred in two cases. All the wounds were stitched. Minor bleeding happened in 1 pa?tient, and was controlled by hemostatic clip. Conclusion The new suture coil is easy to use,and can effec?tively prevent and deal with the occurrence of intraoperative and postoperative ESD?related complications.
8.Advances on chemical constituents and pharmacological activity of genus Scilla.
Meng-Yang FAN ; Yan-Min WANG ; Zhi-Min WANG ; Hui-Min GAO
China Journal of Chinese Materia Medica 2014;39(2):162-170
The genus Scilla consists of 90 species widely distributed in Europe, Asia and Africa, one and its variant of which can be found in China Some species of the genus have been used in traditional medicine to treat various diseases related to inflammation and pain. Phytochemical studies have demonstrated the presence of triterpene and tritepenoid saponins derived from eucosterol, bufadienolides, alkaloids, stilbenoids and lignan in the plants of this genus. Various bioactivities such as antimicrobial, anti-inflammatory, antioxidant, anti-tumor and glycosidase inhibitory activities, have been reported. In this review, the advance of chemical constituents and pharmacological activities of the Scilla species are summarized for further development and utilization of the resource.
Animals
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Drugs, Chinese Herbal
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chemistry
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pharmacology
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Humans
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Scilla
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chemistry
9.Homoisoflavanones and stilbenes from fresh bulb of Scilla scilloides.
Yan-Min WANG ; Meng-Yang FAN ; Juan LI ; Zhi-Min WANG ; Hui-Min GAO
China Journal of Chinese Materia Medica 2014;39(19):3788-3793
Mian-Zao-Er was collected from the bulbs of Scilla scilloides (Lindl. ) Druce, belonging to the Hyacinthaceae family. 17 compounds were obtained using various column chromatographies on macroporus resin (HPD100), silica gel, Sephadex LH-20 and ODS, as well as semi-preparative HPLC. Their structures were elucidated on the basis of physicochemical properties and spectral data as 2-hydroxy-7-methoxyscillascillin (1), scillascillin (2), 5,7-dihydroxy-3',4'-dimethoxyspiro 2H-1-benzopyran-7'-bicyclo[4.2.0 ] octa [1,3,5 ] -trien } -4-one (3), socialinone (4), 4-methylresveratrol (5), (E)-resveratrol (6), scillavoneA (7), 3,9-di- hydroeucomnalin (8), 3-(3-hydroxy-4-methoxybenzyl) -5,7-dihydroxychroman-4-one (9), (3R)-5,7,3'-trihydroxy-4'-methoxyspiro (2H-1-benzopyran-7'-bicyclo[4, 2, 0] octa [1, 3, 5]-trien} -4-one (10), scillabene A (11), 2-hydroxyscillascillin (12), 3-(4-hydroxybenzyl) -5,7-dihydroxychroman-4-one (13), 3-( 4-hydroxybenzylidene) -5, 7-dihydroxychroman-4-one (14), 3-( 4-hydroxybenzyl) -5-hydroxy-7,8-dimethoxychroman-4-one (15), 3-(4-hydroxybenzyl) -5-hydroxy-6, 7-dimethoxychroman-4-one (16), and 3-(4-hydroxybenzyl)-5,8-hydroxy-7-methoxychroman-4-one (17). Among them, compounds 3, 4, 6, 9, 13 and 15-17 were isolated from this plant for the first time.
Drugs, Chinese Herbal
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chemistry
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Flowers
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chemistry
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Isoflavones
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chemistry
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Mass Spectrometry
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Molecular Structure
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Scilla
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chemistry
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Stilbenes
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chemistry
10.Advances in peptidyl Asx-specific ligases for the application of cyclic peptides
Xin SHEN ; Min-zhi LIU ; Yan YANG ; Wei WANG
Acta Pharmaceutica Sinica 2023;58(9):2656-2668
Asparaginyl endopeptidases (AEPs) in plants belong to the family of cysteine protease that undergo self-activation in the form of zymogen in acidic vacuole and play important physiological roles in maturation of seed storage proteins, protein degradation, programmed cell death and host defense. Bioprocessing enzymes (peptidyl Asx-specific ligases, PALs) that promote the maturation of cyclotides have recently been isolated and identified from several cyclotide-rich plants. PALs derived from AEPs can site-specifically catalyze the formation of asparagine or aspartate peptide bonds. Due to the advantages of relatively traceless peptide bonds and broad substrate spectrum and high catalytic efficiency, they have been playing important roles in the cyclization and modification of peptides and proteins, and are powerful tools for improving the stability of peptide drugs. This review describes the physiological functions of AEPs in plants and summarizes the discoveries, structural characteristics, catalytic mechanism and protein engineering of PALs, as well as the limitation of their applications and future trends. In addition, the applications of PALs in cyclotides biosynthesis and the development of macrocyclic peptides are highlighted, with the aim of providing a new idea for the biocatalytic synthesis of cyclic peptides.