1.Study on the role of Bcl-2 in anti- neuronal apoptosis after spinal cord injury
Ying WANG ; Zhiyang SUN ; Kuiming ZHANG ; Guoqiang XU ; Guang LI
Chinese Journal of Emergency Medicine 2010;19(12):1275-1280
Objective To study the variables of behavioral function and TUNEL (terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling) figure in Bcl-2 transgenic (TG) mice and control mice after spinal cord injury (SCI), thus to find new ideas and ways for diagnosing and treating SCI. Method The genesis of Bcl-2 overexpression transgenic (TG) mice were produced by injection of Bcl-2 plasmid into the fertilized ova of mice.Nine Bcl-2 TG mice and nine control mice were subjected to SCI of moderate severity at T10, with the use of weight dropping (WD) method (impact force 2.5~3.0 g·cm). Up to 1 day , 7 days, and 14 days after SCI,functional deficits were evaluated with BBB scales, and the apoptosis of neurons was investigated by using TUNEL method. Another three mice of control group were only treated with laminectomy without SCI for comparison. Results The mean functional scores in the control mice were lower than those in the Bcl-2 TG mice, although the unpaired T -test revealed no significant differences. On the other hand, the number of TUNEL positive neurons and IOD(Integrated Optical Density)score in the Bcl-2 TG mice were both significantly lower than those in the control mice. Conclusions This experiment suggests that overexpression of Bcl-2 may suppress neuronal apoptosis after SCI. The Bcl-2 may be an important factor in relieving the damage within CNS after trauma.
2.The application of ultrasound visualization in instantly evaluation and supplement therapeutics in the treatment of uterine fibroids and adenomyosis with HIFU
Xiaojuan XIONG ; Guang OUYANG ; Ying ZHANG ; Zhiwen LAI ; Qin TU
Chongqing Medicine 2013;(35):4286-4288
Objective To investigate the application of ultrasound visualization in instantly evaluation and supplement therapeu-tics in the treatment of uterine fibroids and adenomyosis with high intensity focused ultrasound (HIFU ) .Methods 57 patients with 67 uterine fibroids and 31 patients with 41 adenomyosis were treated with JC-200 HIFU treatment system and monitored the blood flow change in the lesion with B-ultrasound .Evaluated the curative effect with ablation ratio and ablation ratio after supplement therapeutics .Results The average ablation ratio of 57 uterine fibroids was(84 .6 ± 16 .1)% and the increased to(87 .0 ± 10 .7)% af-ter supplement therapeutics to 9 lesions with blood flow in the border of all .The changes were no significance(P>0 .05) .The aver-age ablation ratio of 31 adenomyosis was(62 ± 22 .7)% and increased to(74 ± 14 .7)% after supplement therapeutics to 11 lesions with blood flow in the border of all .The changes were statically significance(P<0 .05) .Conclusion Ultrasound visualization could be used to evaluate the area and extent of ablation with HIFU therapy ,it can clear lesions remaining parts and guiding the supple-ment therapeutics to improve the ablation ratio .Ultrasound visualization provided an evidence of therapeutics in the early period .
3.Effect of Actinidia chinensis planch polysaccharide on the growth and apoptosis, and p-p38 expression in human gastric cancer SGC-7901 cells.
Wen-Ying SONG ; Guan-Hua XU ; Guang-Ji ZHANG
Chinese Journal of Integrated Traditional and Western Medicine 2014;34(3):329-333
OBJECTIVETo investigate the effect of Actinidia chinensis Planch polysaccharide (ACPS) on the growth and apoptosis of human gastric cancer SGC-7901 cells, and to explore the effect of SGC-7901 cells on p-p38 expression.
METHODSThe inhibition rates at different concentrations of ACPS on SGC-7901 cells at 24, 48, and 72 h were detected using CCK-8 method. Apoptosis ratios in SGC-7901 were determined by flow cytometry after 48-h treatment of different concentrations of ACPS. The expression of pro-caspase-9, PARP, and p-p38 in SGC-7901 cells after treated by different concentrations of ACPS was detected using Western blot. The expression of pro-caspase-9, PARP, and p-p38 was detected after SGC-7901 cells were pre-treated by p38 specific inhibitor.
RESULTSCompared with the control group, the optical density of SGC-7901 cells decreased after treated by 1, 2.5, 5, and 10 mg/mL ACPS (P < 0.05). Meanwhile, the longer the acting time, the lower the optic density (P < 0.01). IC50 was 7.43 mg/mL at 24 h; 3.88 mg/mL at 48 h, and 1.32 mg/mL at 72 h respectively. ACPS suppressed the protein expression of pro-caspase-9 (P < 0.01) and up-regulated the expression of PARP (89KD) (both P < 0.01). Further study showed that the protein expression of p-p38 was up-regulated in SGC-7901 cells treated by ACPS of different concentrations at 24 h (P < 0.05). The expression of phosphorylation p38 and the ACPS induced apoptosis of SGC-7901 cells could be inhibited after treated by specific inhibitor for 2 h.
CONCLUSIONSACPS could inhibit the growth of SGC-7901 cells and induce apoptosis. The underlying mechanism of inducing apoptosis was partially due to activating the p38MAPK path and further activating Caspase9 and PARP, finally leading to cell death.
Actinidia ; chemistry ; Apoptosis ; drug effects ; Caspase 9 ; metabolism ; Cell Line, Tumor ; Cell Proliferation ; drug effects ; Humans ; Poly (ADP-Ribose) Polymerase-1 ; Poly(ADP-ribose) Polymerases ; metabolism ; Polysaccharides ; pharmacology ; Stomach Neoplasms ; metabolism ; pathology ; p38 Mitogen-Activated Protein Kinases ; metabolism
4.Study on preoperative low dose amiodarone administration for prevention of atrial fibrillation after off-pump coronary artery bypass grafting
Ying FANG ; Zhao-guang ZHANG ; Cheng-xiong GU ; Yang YU ;
Chinese Journal of Geriatrics 2009;28(6):457-459
Objective To assess the safety, tolerability and efficacy of preoperative low dose intravenous amiodarone in the prevention of atrial fibrillation (AF) after off-pump coronary artery bypass grafting (OPCAB). Methods Two hundred patients with coronary atheroselerotic heart disease underwent selected OPCAB and were randomly divided into two groups: control group (100 cases) and experimental group (100 cases). Patients in control group were given conventional medicines and placebo, and patients in experimental group were treated with low dose intravenous amiodarone daily for 4 days before surgery. They were given conventional medicines after surgery. Results After the off-pump coronary artery bypass grafting, the incidence of AF, ventricular rate and the duration of AF in the experimental group were lower than those in control group [15% vs. 41%, χ2=16.766, P=0.000; (126.0±20.8) times/ min vs. (150.0±25.6) times/ min, t=0.478, P =0. 017; (8. 0±8. 6) h vs. (12.0±9.6) h, t=0. 439, P=0. 019]. No significant difference were found in the incidence of side effect between low close amiodarone group and the control group. Conclusions Prophylactic application of low dose intravenous arniodarone before off-pump coronary artery bypass grafting can safely and effectively reduce the postoperative ventricular rate and the incidence of AF, shorten the duration of AF, promote the rehabilitation and slightly improve the clinical symptoms.
5.Effect of aspheric multifocal toric IOL implantation on visual acuity and contrast sensitivity in patients with cataract
Ling-Ling, ZHANG ; Yi-Jun, JIA ; Guang-Ying, ZHENG
International Eye Science 2016;16(7):1302-1305
AIM: To observe the effect of intraocular lens ( IOL) implantation on visual acuity and contrast sensitivity in patients with cataract.
METHODS: Fifty - eight cases ( 72 eyes ) cataract patients with regular cornel astigmatism, in our hospital from May 2014 to May 2015 were randomly divided into two groups to undergo phacoemulsification and IOL implantation: the observation group: 29 cases (36 eyes) received multifocal toric IOL implantation; the control group: 29 cases (36 eyes) received monofocal toric IOL implantation. Uncorrected distance visual acuity ( UCDVA), uncorrected near visual acuity ( UCNVA), best corrected distance visual acuity (BCDVA), the best corrected near visual acuity ( BCNVA ), total eye astigmatism, and the dark contrast sensitivity were observed for these patients at 1 and 6mo after cataract surgery.
RESULTS: There were no statistical significant difference between the two groups at postoperative 1, 6mo on UCDVA, BCNVA, BCDVA and total eye astigmatism(P>0. 05). UCNVA of observation group at 1 and 6mo were better than those of control group ( P <0. 05); there were statistically significant difference in high frequency comparison at the sixth postoperative months (P<0. 05).
CONCLUSION: Both monofocal toric IOL implantation, and aspheric multifocal toric IOL implantation for cataract with regular corneal astigmatism are effective to improve visual acuity. But the latter treatment would contribute to the improvement of uncorrected near visual acuity and the dark contrast sensitivity.
7.Comparison of the characteristics of coronary artery disease between first-degree relatives and non-first-degree relatives of patients with type 2 diabetes
Weiqiong GU ; Yifei ZHANG ; Jie HONG ; Ying CHEN ; Yu ZHANG ; Yuwen ZHANG ; Xiaoying LI ; Guang NING
Chinese Journal of Endocrinology and Metabolism 2009;25(4):374-377
y screen and prevent CAD in these people before diabetes sets in.
8.The application of GlideScope videolaryngoscope in head neck tumor operations with difficult tracheal intubation.
Xiu-ying ZHANG ; Guang-hua ZHANG ; Lu-bo GAO
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2006;41(12):950-951
Adult
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Aged
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Aged, 80 and over
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Female
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Head and Neck Neoplasms
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surgery
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Humans
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Intubation, Intratracheal
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methods
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Laryngoscopes
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Male
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Middle Aged
9.Study on compatibility of Salviae Miltiorrhizae Radix et Rhizoma and Chuanxiong Rhizoma based on pharmacokinetics of effective components salvianolic acid B and ferulic acid in rat plasma.
Cui-ying ZHANG ; Hong ZHANG ; Yu DONG ; Wei-guang REN ; Heng-wen CHEN
China Journal of Chinese Materia Medica 2015;40(8):1589-1593
A study was made on the pharmacokinetic regularity of effective components salvianolic acid B and ferulic acid in Salviae Miltiorrhizae Radix et Rhizoma (SMRR) and Chuanxiong Rhizoma(CR) in rats, so as to discuss the compatibility mechanism of Salviae Miltiorrhizae Radix et Rhizoma and Chuanxiong Rhizoma. Rats were randomly divided into three groups and intravenously injected with 50 mg x kg(-1) salvianolic acid B for the single SMRR extracts group, 0.5 mg x kg(-1) ferulic acid for the single CR extracts group and 50 mg x kg(-1) salvianolic acid B + 0.5 mg x kg(-1) ferulic acid for the SMRR and CR combination group. The blood samples were collected at different time points and purified by liquid-liquid extraction with ethyl acetate. With chloramphenicol as internal standard (IS), UPLC was adopted to determine concentrations of salvianolic acid B and ferulic acid. The pharmacokinetic parameters of salvianolic acid B and ferulic acid were calculated with WinNonlin 6.2 software and analyzed by SPSS 19.0 statistical software. The UPLC analysis method was adopted to determine salvianolic acid B and ferulic acid in rat plasma, including linear equation, stability, repeatability, precision and recovery. The established sample processing and analysis methods were stable and reliable, with significant differences in major pharmacokinetic parameters, e.g., area under the curve (AUC), mean residence time (MRT) and terminal half-life (t(1/2)). According to the experimental results, the combined application of SMRR and CR can significantly impact the pharmacokinetic process of their effective components in rats and promote the wide distribution, shorten the action time and prolong the in vivo action time of salvianolic acid B and increase the blood drug concentration and accelerate the clearance of ferulic acid in vivo.
Animals
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Apiaceae
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chemistry
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Benzofurans
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blood
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pharmacokinetics
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Coumaric Acids
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blood
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pharmacology
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Drug Interactions
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Drugs, Chinese Herbal
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analysis
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pharmacokinetics
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Male
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Rats
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Rats, Sprague-Dawley
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Rhizome
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chemistry
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Salvia miltiorrhiza
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chemistry
10.Study on the association between interleukin-1 loci polymorphism and risk of gastric cancer
Ying ZHANG ; Zhi-Guang ZHANG ; Feng-Xiang JI ; Shu-Jun WEN ; Chun-You CAI ;
Chinese Journal of Digestive Endoscopy 2001;0(03):-
Objective To evaluate the association between interleukin-I(IL-1)loci polymorphisms and increased risk of gastric carcinoma in samples from northern Chinese population.Methods Blood sam- ples from 126 patients with gastric cancer and 125 controls with chronic gastritis were collected.Genomic DNA was extracted and polymorphisms at -31(C to T),-511(C to T)and at intron 2(86-bp VNTR)of IL-I RN were genotyped by PCR-CTPP,PCR-RFLP and PCR.For detection of Hp infection fast urenase test,~(14)C breath test and serum anti-Hp IgG antibody assay were used.Results Five kinds of polymorphism of IL-IRN were found as 1/1,1/3,1/4,1/2 and 2/2,and the frequencies in patients were 76.19%、4.76%、6.35%、11.90% and 0.79%,respectively.However,the frequencies in controls were 76.00%、4.00%、4.80%、13.60% and 1.60%.No significant differences were observed between cases and controls in each genotype.The polymorphism of IL-IB-31 allele was C/C,C/T and T/T.The frequencies in patients were 12.70% ,47.62% and 39.68%,and in controls 28.00%,48.80% and 23.20% respectively.IL-1B- 31 T/T carriers were at an increase risk of gastric cancer with an odds ratio of 3.772(95% CI,1.786- 7.966).IL-IB-511 alleles were C/C,C/T and T/T.The frequencies in patients were 19.20%,56.80% and 24.00% and in controls,23.38%,49.19% and 27.42% respectively.No significant differences were observed between cases and controls in each genotype.Conclusion In Chinese population,the polymor- phism of IL-1B-31 alleles may be associated with the susceptibility of gastric cancer.However,no evidence was found to support that the polymorphisms of IL-1RN and IL-I B-511 alleles had relationship with gastric cancer.