1.Effect of torasemide or furosemide combined with mannitol in treatment of acute cerebral hemorrhage patients with cerebral edema
Yanbei YANG ; Jingcun DAI ; Xiao DONG
Chinese Journal of Postgraduates of Medicine 2014;37(6):42-44
Objective To compare the effect of torasemide or furosemide combined with mannitol in the treatment of acute cerebral hemorrhage patients with cerebral edema.Methods One hundred and sixty patients with cerebral hemorrhage were selected,and divided into torasemide group and furosemide group according to different treatment methods,40 cases in each.The torasemide group was treated with torasemide combined with 20% mannitol,the furosemide group was treated with furosemide combined with 20% mannitol.The curative effect,mannitol dosage,edema volume,24 h urine and adverse reactions in two groups were compared.Results The total effective in torasemide group was higher than that in furosemide group [97.5% (78/80) vs.77.5% (62/80)],mannitol dosage was less than that in furesemide group [(347.5 ±32.5) ml vs.(438.2 ±30.7) ml],the incidence of adverse reactions was lower than that in furosemide group [7.5%(6/80) vs.27.5%(22/80)],which reached statistical significance (P< 0.01 or < 0.05).The edema volume in the 7th,14th day in torasemide group was less than those in furosemide group [(21.1 ±3.4) ml vs.(23.3 ±4.8) ml,(17.6 ±4.5) ml vs.(22.4 ±5.6) ml],the 24 h urine in the 3re,7th,14th day were more than those in furosemide group [(3 684 ±528) ml vs.(3 429 ±592) ml,(3 854 ± 746) ml vs.(3 185 ±490) ml,(3 742 ±t658) ml vs.(2 251 ± 324) ml],which reached statistical significance (P < 0.05).Conclusions Torasemide in treatment of acute cerebral hemorrhage patients has better efficacy and safety.It is better than furosemide.
2.Pseudocyst of spleen with widespread calcification: report of a case.
Xiao-lu YUAN ; Yi-fei DAI ; Ji-zhou YANG
Chinese Journal of Pathology 2011;40(11):782-782
Adult
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Calcinosis
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diagnostic imaging
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pathology
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surgery
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Cysts
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diagnostic imaging
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pathology
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surgery
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Diagnosis, Differential
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Female
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Humans
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Lymphatic Vessel Tumors
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pathology
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Mucocele
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pathology
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Parasitic Diseases
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pathology
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Spleen
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diagnostic imaging
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Splenectomy
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Splenic Diseases
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diagnostic imaging
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pathology
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surgery
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Tomography, X-Ray Computed
3.Establishment of cell model for determining activity of insulin receptor kinase by STAT5b responsive reporter gene
Qingyuan DAI ; Xianggui CHEN ; Xiao YANG ; Jing LUO
Chinese Pharmacological Bulletin 1987;0(02):-
Aim To develop a simple and rapid method to monitor insulin receptor kinase activity and provide a novel cell-based model for screening anti-diabetes drugs.Methods CHO cells were co-transfected by plasmids which respectively contained insulin receptor gene,STAT5b gene and luciferase gene driven by STAT5 response elements.The expression of exogenous gene in transfected cells was examined by RT-PCR.The transfected cells were treated by insulin,and then the concentration and time-dependent response of luciferase expression to insulin induction was examined.Moreover,the specificity was identified by AG1024 treatment and PTP1B gene transfection.Results Expressions of insulin receptor and STAT5b were detected in the transfected CHO cells.The expression of luciferase in transfected cells was induced by insulin in concentration and time-dependent way.The maximal induction fold was 6.25.Moreover,the inducible expression of luciferase by insulin could be specifically blocked by tyrphostin AG1024,an inhibitor of insulin receptor kinase,or co-transfected PTP1B gene.Conclusions The insulin receptor kinase activity can be detected by expression of reporter gene with high sensitivity and specificity in this cell model,and with potential value in high throughput screening for insulin receptor activators and sensitizers.
4.Aspirin inhibits tumor cell metastasis mediated by HGF/c-Met
Xiao-yang DAI ; Si-kang CHEN ; Jin-xin CHE
Acta Pharmaceutica Sinica 2022;57(10):2985-2994
In this study, we investigated the effect of aspirin on tumor biological effects mediated by hepatocyte growth factor/cellular-mesenchymal-epithelial transition factor (HGF/c-Met) axis, and preliminarily explored the molecular mechanism of inhibiting tumor metastasis by aspirin. The binding of aspirin to c-Met was predicted by molecular docking; cellular thermal shift assay (CETSA) was used to verify the binding of aspirin to c-Met at the cellular level. The inhibitory effect of aspirin on c-Met kinase was detected by kinase activity; Western blot, cell scattering test, cell branching morphogenesis and Transwell test were used to evaluate the cell signal transduction, morphological changes and migration and invasion ability. The results showed that aspirin could effectively inhibit the kinase activity of c-Met with a half inhibitory concentration of 0.95 mmol·L-1. The results of docking showed that aspirin could bind to the ATP pocket of c-Met protein, and the main binding sites were Tyr1230, Tyr1159 and Met1229. The CETSA test also showed that aspirin could form binding complex with c-Met protein. Western blot results showed that aspirin could inhibit the up-regulation of phosphorylated Met stimulated by HGF in a concentration-dependent manner. The results of cell scattering test showed that aspirin could block HGF/c-Met promoted cell scattering in a concentration dependent manner. Aspirin could almost completely block the biological function mediated by c-Met activation at the concentration of 4 mmol·L-1, and this effect was independent of HGF. Similarly, the results of MDCK cell branching morphogenesis experiment showed that aspirin could inhibit HGF/c-Met mediated invasive growth in a concentration dependent manner. The results of Transwell test showed that aspirin could block HGF/c-Met mediated cell migration and invasion in a concentration-dependent manner. Aspirin could almost completely block the biological function mediated by c-Met activation at the concentration of 4 mmol·L-1, and this effect was independent of HGF. The above results indicate that aspirin can bind to c-Met, thereby blocking the biological effects mediated by HGF/c-Met, and inhibiting tumor metastasis. This study revealed the new biological function of aspirin, and provided a new theoretical basis for a comprehensive understanding of the anti-metastatic effect of aspirin.
5.Regulation effects of electroacupuncture at "Sanyinjiao" (SP 6) on bladder function in rats with overactive bladder after cystostomy.
Jing YANG ; Xiu DAI ; Yang WU ; Xiao-dong YANG ; Ka-ming HU ; Bo XIANG
Chinese Acupuncture & Moxibustion 2014;34(10):998-1002
OBJECTIVETo observe the effects of electroacupuncture (EA) at "Sanyinjiao" (SP 6) on urodynamics indices in rats with overactive bladder (OAB) after cystostomy, and to explore its regulation mechanism on bladder function.
METHODSForty-eight Sprague-Dawley female rats which received cystostomy were randomly divided into a blank group (group A), a blank Sanyinjiao group (group B), a blank non-acupoint group (group C), a model group (group D), a model Sanyinjiao group (group E) and a model non-acupoint group (group F), 8 rats in each one. The model of OAB was established with 1% acetic acid solution perfused into the bladder in the group D, group E and group F. No treatment was given to the group A and group D. Acupuncture was applied at bilateral "Sanyinjiao" (SP 6) in the group B and group E, followed by EA after the arrival of qi. Acupuncture was applied at bilateral non-acupoint in the group C and group F, followed by EA with continuous wave, 2 Hz of frequency for 30 min. The treatment was given for continuous 5 urination cycles. The BL-420 E+ biological function experiment system was used to measure and record the changes of indices of bladder pressure and urodynamics.
RESULTSCompared with the group A, the bladder capacity and urine output in the group B were significantly increased (both P<0.05), and the urination rate was increased in the group C (P<0.05); the differences of each index between group C and group B were not statistically significant (all P>0.05). Compared with the group D, the capacity pressure, bladder capacity, detrusor pressure, urinary output and urination rate in the group E were all increased (all P<0.05). Compared with the group F, the capacity pressure and detrusor pressure in the group E were increased (both P<0.05).
CONCLUSIONThe EA at "Sanyinjiao" (SP 6) could significantly improve urine function in rats with OAB after cystostomy, but its regulation effect on urination is not obvious in rats with non-OAB.
Acupuncture Points ; Animals ; Cystostomy ; Disease Models, Animal ; Electroacupuncture ; Female ; Humans ; Rats ; Rats, Sprague-Dawley ; Urinary Bladder ; physiopathology ; surgery ; Urinary Bladder, Overactive ; physiopathology ; surgery ; therapy
6.Randomized study of kezhi Capsules in Treating Nonalconolic Fatty Liver
Yuewu YANG ; Gemin XIAO ; Baiming ZHAO ; Hongzhi YANG ; Min DAI ; Lichun TENG
The Journal of Practical Medicine 2014;(4):638-640
Objective To evaluate the effect and side effects of Kezhi capsule in short-term treatment of nonalcoholic fatty liver disease (NAFLD). Methods 60 NAFLD cases of outpatients according to the inclusion criteria of were randomly assigned to two groups: the treated group-30cases with the prescription of Kezhi capsule , and the control group-30cases with the prescription of Xuezhikang. The treatment Course of taking Kezhi capusule (1.25 g, tid, po) and Xuezhikang(0.6 g, bid, po)was 24 weeks. Results After treatment in both groups we saw the significant decrease of the levels of ALT, AST, TC, TG, LDL-C, CREAT, BUN, BMI and TCM Syndromes scores, and the improvement of the ultrasonographic findings of liver steatosis. In the Xuezhikang group we saw higher decrease of TC and TG than the Kezhi capsule group with statistic difference (P < 0.05), while in Kezhi capsule group we saw higher decrease of BMI , TCM Syndromes scores and the improvement of the ultrasonographic findings of liver steatosis than the xuezhikang group with statistic difference (P < 0.05). Conclusions The results show that kezhi capsule is effective for the treatment of NAFLD without obvious side effects.
7.Establishment of a mouse model of kidney deficiency induced by oral administration of hydrocortisone and evaluation of related factors
Bing DAI ; Jiani ZHANG ; Menglin YANG ; Yuxing LI ; Zizeng XIAO ; Lei YANG ; Qiang WEI
Acta Laboratorium Animalis Scientia Sinica 2017;25(1):70-73
Objective To establish a mouse model of kidney-yin and kidney?yang deficiency after oral administra?tion of hydrocortisone, and to explore the related evaluation factors. Methods The model was established by oral adminis?tration of hydrocortisone to induce kidney?yin and kidney?yang deficiency in mice. The survival and body weight of the mice were observed. The serum content of adrenal cortical hormone ( ACTH) , cortisol ( Cor. ) in the hypothalamic?pituitary?ad?renal (HPA) axis, and thyroid stimulating hormone (TSH), triiodothyronine (T3), thyrox (T4) in the hypothalamic?pi?tuitary?thyroid (HPT) axis, follicle?stimulating hormone (FSH), estradiol (E2), testosterone (T) in the hypothalamic?pituitary?gonadal ( HPG) axis were determined by radioimmunoassay. Results The body weight of kidney?yin and kidney?yang mice were decreased, the serum ACTH, Cor, TSH, T3, T4 contents were decreased, the serum FSH, E2, T contents were increased in the kidney?yang deficiency model mce ( P<0. 01 ) , and those parameters in the kidney?yin deficiency model mice were changed in opposite direction. Conclusions It is found that the hormone levels of ACTH, Cor, TSH, T3, T4, FSH, E2 and T in kidney deficiency mice are changed, and cortisol can be used as an important index to evaluate the model of kidney deficiency induced by glucocorticoid.
8.Preparation and identification of scFv and bsFv against transferrin receptor.
Jing, LIU ; Daiwen, XIAO ; Xiaoou, ZHOU ; Xue, WEN ; Hong, DAI ; Zhihua, WANG ; Xin, SHEN ; Wei, DAI ; Daofeng, YANG ; Guanxin, SHEN
Journal of Huazhong University of Science and Technology (Medical Sciences) 2008;28(6):621-5
To obtain single chain variable fragment (scFv) and bivalent single chain variable fragment (bsFv) against transferrin receptor, up-stream and down-stream primers were designed according to the complementary sequences of FR1 region of variable heavy (VH) and FR4 of variable light (VL), respectively, which contained inter-linker G4S and the restriction endonuclease SfiI, AscI and NotI. Two pieces of scFv fragments were first amplified through PCR and then inserted into plasmid pAB1, which could express scFv protein once induced by IPTG in the host bacteria. To express scFv and bsFv, E. coli TG1 was cultured in LB broth and was induced by IPTG. The restriction enzyme digestion map and DNA sequencing demonstrated that scFv and bsFv genes were successfully inserted into the expression plasmid. SDS-PAGE and Western blotting revealed the protein band at 35kD and 60kD, which were consistent with the molecular weight of scFv and bsFv respectively. Flow cytometry showed that scFv and bsFv harbored the specific binding activity with TfR expressed in various tumor cells, and the avidity of bsFv was higher than that of the parent scFv.
Base Sequence
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Cloning, Molecular
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Escherichia coli/genetics
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Escherichia coli/metabolism
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Genetic Vectors/genetics
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Hep G2 Cells
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K562 Cells
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Molecular Sequence Data
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Receptors, Transferrin/*immunology
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Recombinant Fusion Proteins/biosynthesis
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Recombinant Fusion Proteins/genetics
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Single-Chain Antibodies/*biosynthesis
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Single-Chain Antibodies/genetics
9.Over-articular external fixator combined with limited internal fixation for the treatment of high-energy Pilon fractures.
Da-Cheng LIU ; Xiao-Ning YANG ; Chang-Zhi HUANG ; Yi-Gong SUN ; Xing-Ming DAI
China Journal of Orthopaedics and Traumatology 2014;27(4):331-334
OBJECTIVETo study clinical effects of the over-articular external fixator combined with limited internal fixation for the treatment of Pilon fractures caused by high energy.
METHODSFrom September 2003 to April 2011, 36 patients with Pilon fractures caused by high energy were treated with the over-articular external fixator combined with limited internal fixator. There were 25 males and 11 females, ranging in age from 16 to 72 years old,with an average of 38 years old. The diagnoses of all patients were determined by conventional X-ray examination or three-dimensional spiral CT examination. The AOFAS scoring criteria was used to evaluate the therapeutic effects. The patients with comminuted fractures were treated with screw or Kirschner wire fixation without uncovering periost so as to enhance stability between fracture end and bone blocks,followed by the fixation with over-articular external fixators.
RESULTSAll the patients were followed up, and the duration ranged from 4 to 27 months, with an average of 13 months. Thirty-two patients got wound healing at the first stage. And the bone union duration ranged from 2 to 6 months, with a mean of 3 months. According to the AOFAS ankle-hindfoot subjective scoring standard, 13 patients got an excellent result, 20 good and 3 fair, with an score of 88.2 +/- 3.6. Twelve patients had infections at pinhole, 5 patients had pinhole pain. One patient had the fixator broken induced by over loading, who was cured after treatment. There were no complications such as nerve or vascular injuries, or osteomyelitis.
CONCLUSIONThe over-articular external fixation combined with limited internal fixation for the treatment of Pilon fractures caused by high energy is an ideal method, which has such advantages as reliable fixation, simple operation, coincidence with principles of biomechanical fixation, and benefit for fracture healing.
Adolescent ; Adult ; Aged ; Ankle Injuries ; diagnostic imaging ; surgery ; Ankle Joint ; diagnostic imaging ; surgery ; External Fixators ; Female ; Fracture Fixation ; Fracture Fixation, Internal ; Humans ; Internal Fixators ; Male ; Middle Aged ; Radiography ; Treatment Outcome ; Young Adult
10.Construction and identification of a eukaryotic expression vector of fusion protein containing avian H5N1 influenza virus hemagglutinin antigen and the cholera toxin B subunit
Ling ZHANG ; Xin XIAO ; Wang YANG ; Shulan DAI ; Chunhua HU ; Fang LIAO
Chinese Journal of Infectious Diseases 2013;31(7):386-391
Objective To construct a eukaryotic vector which contains avian H5N1 influenza virus hemagglutinin (HA) antigen and the cholera toxin B subunit (CTB) and to investigate its expression in COS7 cells,and the ability to induce specific immune responses in vivo in different periods.Methods After cloned by polymerase chain reaction (PCR),CTB and HA genes were digested with BamH Ⅰ and connected into CTB-HA gene with T4 ligase.The connected gene was referred to as CH.After double digestion,CH gene was inserted into a eukaryotic recombinant plasmid pCI-neo.The pCI-CH plasmid was then transfected into COS7 cells.Western blot was used to detect the expression of HA antigen.After New Zealand white rabbits were immunized,the titer of HA antigen-specific antibody in serum and its specificity with other strains such as H1N1,H9N1,H3N2 and influenza B virus were determined by indirect enzyme-linked immunosorbent assay.Results The pCI-CH vector (DNA vaccine) was successfully constructed,which could be efficiently expressed in COS7 cells and induce specific antibodies against pCI-CH in rabbits.Cross reactions indicated that DNA vaccine pCI-CH specific antisera could not only react with H5N1 strain (P/N>2.1),but also H1N1,H9N1 and H3N2 strains,but did not cross react with influenza B virus.Conclusion The newly constructed avian H5N1 influenza virus nucleic acid vaccine has good immunogenicity.