1.Hypothermia combined with dexamethasone reduces ICAM1 expression and protects spermatogenesis after testicular torsion-detorsion.
Hui-Chang LI ; Wu-Bin WENG ; Chang-Ming LIU ; Ben-Jiang QIAN ; Miao-Chun LIN
National Journal of Andrology 2014;20(7):618-623
OBJECTIVETo investigate the protective effect of hypothermia combined with dexamethasone on spermatogenesis and the expression of intercellular adhesion molecule 1 (ICAM1) after testicular torsion-detorsion.
METHODSWe made unilateral testicular torsion models in 100 pubertal male Sprague-Dawley rats by 720 degree torsion of the left testis and then randomly divided them into four groups of equal number to be treated with normal temperature + physiological saline (group A), hypothermia + physiological saline (group B), normal temperature + dexamethasone (group C), and hypothermia + dexamethasone (group D). After 48 hours, we collected the testes, observed pathological changes of the testicular tissue by HE staining under the light microscope, detected the apoptosis of spermatogenic cells by TUNEL, and determined the expression of ICAM1 by Western blot.
RESULTSHE staining showed different degrees of testicular tissue injury in the four groups of rats, most obvious in group A, but mild in the other three. The ICAM1 protein expression was significantly higher in group A (0.68 +/-0. 03) than in B (0. 49 +/- 0. 06, P <0. 05) , C (0. 46 +/- 0. 09, P < 0.05) , and D (0.17 +/- 0.08, P <0.01). The nuclei were deep brown or brown. Lots of apoptotic spermatogenic cells were seen in the torsion testis of group A, with a significantly higher apoptosis index ( [33. 13 +/- 3.21 ]%) than in B ( [ 17. 12 +/-5.23 ]%, P < 0.05), C ([14.13 +/- 2.03]%, P <0.05), and D ([9.05 +/- 1.03]%, P <0.01).
CONCLUSIONHypothermia combined with dexamethasone can protect the testis from injury as well as the reproductive function of the testis after testicular torsion-detorsion and reduce the expression of ICAM1.
Animals ; Dexamethasone ; pharmacology ; Disease Models, Animal ; Hypothermia, Induced ; Intercellular Adhesion Molecule-1 ; metabolism ; Male ; Rats ; Rats, Sprague-Dawley ; Spermatic Cord Torsion ; metabolism ; physiopathology ; Spermatogenesis ; drug effects
2.Study of the antiulcer effect of pantoprazole
Ying-Xin WANG ; Xiao-Qiang LI ; Guang-Wu WU ; Shan-Jun QIAN ; Hong LEI ; Chang CAO ;
Chinese Journal of Clinical Pharmacology and Therapeutics 1999;0(04):-
Aim To evaluate the effects of pantoprazole on various experimental acute ulcer inrats and mice. Methods The model of a gastric ulcer of rats or mice was caused bystree- induced ulcer and ligatel pylurus-induced ulcer. Results & Conclusions At adose of 5, 10, 20 mg? kg-1 of Pantoprazole can markedly decrease the ulcer index ofstree-induced ulcer. Pantoprazole(4, 8, 16 mg? kg -1 ) significantly decrease the areaof ligated pylorus-induced gastric ulcer. It was also found that pantoprazole caninhibit the output of basic gastric acid.
3.Preliminary clinical evaluation of nerve growth factor gel on neuroprotecion in patients with glaucoma
Ren-Yi, WU ; Chang-Quan, HUANG ; Jie-Xuan, LV ; Qian-Qian, HU ; Wei-Yi, HUANG ; Ya-Zhang, XU
International Eye Science 2015;(2):255-258
To evaluate the neuroprotective effect of nerve growth factor ( NGF ) on acute angle-closure glaucoma patients after trabeculetomy.METHODS: Patients with viral keratitis who underwent trabeculectomy in treatment of acute angle - closure glaucoma in Xiamen Eye Center of Xiamen University from December 2011 to October 2013 were selected and completed the treatment, 61 eyes of 45 cases were followed up. The treatment group of 23 cases (32 eyes) with acute angle-closure glaucoma patients were treated by NGF gel for 3mo after trabeculetomy, while in the control group 22 cases (29 eyes) were treated by normal saline replaced NGF. All patients were followed up for at least 12mo, visual acuity, perimetry, retinal nerve fiber layer ( RNFL) thickness and cup/disc ratio of the patients were followed up during the treatment. The safety of topical use of NGF gel was also evaluated.RESULTS:ln all patients, the intraocular pressure ( lOP) was successfully controlled under 21mmHg and the visual acuity was markedly increased in the affected eye after trabeculectomy. Compared with control group, the postoperative lOP and visual acuity had no significant differences in treatment group (P>0. 05). The average light sensitivity of perimetry and mean defect were better than that in control group postoperative 6 and 12mo; The results of optical coherent tomography ( OCT ) and Heiderburg Retina Tomography ( HRT )-Ⅲ showed that RNFL thickness was significantly greater than that in control group, while cup/disc ratio significantly less than that in control group postoperative 6 and 12mo. Ocular surface damage, corneal endothelium to reduce and other eye complication were no observed in treatment group.CONCLUSlON:Acute angle-closure glaucoma treated by NGF gel after operation is effective and safe.
4.One stage hybrid aortic arch replacement and early results
Yizhen WEI ; Qian CHANG ; Cuntao YU ; Xiaogang SUN ; Xiangyang QIAN ; Dong HE ; Jun FENG ; Yongbo WU ; Yanhai MENG
Chinese Journal of Thoracic and Cardiovascular Surgery 2011;27(6):342-344,348
Objective To summarize the clinical experience of one stage hybrid operation for aortic arch replacement and explore the indication. Methods From July,2009 to March,2010, 22 consecutive patients received one stage hybrid operation in our hybrid suite for aortic dissection or aortic aneurysm involving aortic arch. Two operative methods are used. (1)Bypass from ascending aorta to brachiocephalic arteries using midstemotomy and normothermia with antegrade aortic arch endovascular stented graft implantation. (2) Ascending aorta replacement and/or aortic valve replacement and/or coronary artery bypass grafting using midstemotomy and cardiopulmonary bypass with antegrade aortic arch endovascular stented graft implantation. Results All patients were technically successful. Angiography during the operation showed 100% patency of all the bypass grafts and no obvious translocation or endoleak of the stents. One patient in the first group died on sixth day after operation due to distal dissection rupture. There was one case of mediastinal lymph effusion in the second group and one case of death due to renal failure and respiratory failure 12 days after operation in the second group. The ICU stay and hospital stay were obviously shorter in hybrid open chest group than that in traditional open chest operation group(P <0.05). The blood product consumption and expenditure were also obviously less in hybrid open chest group than that in traditional open chest operation group (P <0.05). All the patients were followed up with a mean period of (14.45 ±2.33) months (range: 12 -20 months). All other patients were recovered with normal social life. CT showed neither endoleak nor translocation of the stented grafts. Faulse lumen closure rate at stented-graft segment is 100%. There was no obvious change of distal part of the dissection three months after operation except some thrombosis formation in some of the false lumen. Conclusion One stage hybrid operation for aortic arch replacement is safe and effective in shortening the duration of the operation and reducing the surgical trauma and risk of interval between procedures, shortening the hospital stay and reducing the blood product consumption compared with conventional operation with satisfactory early results. The midterm and long term results are still needed to be followed up.
5.Preliminary Discuss on Identification and Characterization of One Decolorizing Fungus
Hong-Chang LIANG ; Ying-Hua QIAN ; Qing-Hua ZHANG ; He-Miao CHEN ; Xiao-Yu WU ;
Microbiology 2008;0(07):-
According to morphological and microscopic characteristics, a high-efficient decolorizing fungus, the strain Asaw117, was identified as Aspergillus awamori. Selecting eight different dyes from Azo dyes, anthraquinones dyes and oxygen Quinones dyes, the decolorizing assays of various dyes showed that the strain Asaw 117 was the highest decolorizing potential to 0.1 g/L Vat Blue RSN, the discoloration rate up to 100 percent. Comparing to different kinds of medium and several of carbon and nitrogen sources, the strain had the best decolorizing efficient although grew slower in the Czapek medium, otherwise, grew quicker and decolorizing efficient lower in the PDF medium. It could use Vat Blue RSN as a nitrogen source, but not as a carbon source. The medium composing of saccharose and ammonium nitrate as carbon and nitrogen sources was decolorizing potential markedly during different combinations of carbon and nitrogen sources. So the strain has good potential for the dyeing wastewater treatment
6.Detection of associated genes in human lung squamous cell carcinoma in early stage with tumor cDNA microarray
Li LIU ; Qin YANG ; Wei HUANG ; Qian WU ; Ting YANG ; Chang HE ; Peng RAN ; Feng LING
Chinese Journal of Pathophysiology 2000;0(08):-
AIM:To investigate the gene expression profile of human lung squamous cell carcinoma in early stage.METHODS:The mRNA was extracted from cancer tissue and normal lung tissue.The mixed probes were labeled and hybridized with chip containing 480 carcinoma related genes,then analyzed by SuperArray Image software to study the gene expression patterns in lung squamous cell carcinoma.RESULTS:192 genes associated with lung squamous cell carcinogenesis were found,which were grouped into transporter,adhesion molecules,cytoskeleton proteins,transcription regulator,genes associated with metabolism and immune response according to functions.127 gens were positive to lung squamous cell carcinogenesis and 65 genes were negative to lung squamous cell carcinogenesis.CONCLUSION:The screen of gene expression profile of human lung squamous cell carcinoma provides valuable information for the research of molecular mechanism of the lung squamous cell carcinogenesis.
7.Expression of recombinant human acetylcholinesterase and its application in screening its inhibitors.
Xiang-Jun WANG ; Huai-Xiu WU ; Shan-Shan YE ; Lan-Ying PAN ; Yong-Chang QIAN
Acta Pharmaceutica Sinica 2014;49(1):50-54
This study is designed to obtain recombinant human acetylcholinesterase (rhAChE) and apply it in screening acetylcholinesterase inhibitors. The rhAChE was overexpressed in HEK293 cells transfected by plasmid of pCMV-AChE with the cationic liposome and rhAChE was found to be secreted into cell culture medium. AChE activity was assayed according to modified Ellman method to obtain kinetic parameters. IC so50 values for donepezil compounds of rhAChE were calculated to determine their activities of inhibition. The results showed that Km value was 151.9 micromol.L-1 donepezil inhibited rhAChE in a mixed competitive-noncompetitive way (Ki= 16.03 nmol.L-1, Ki = 18.36 nmol.L-1) and that most new compounds tested exhibited high activities of inhibition on rhAChE. The study suggests that rhAChE is available to be applied in screening AChE inhibitors in vitro.
Acetylcholinesterase
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genetics
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metabolism
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Cholinesterase Inhibitors
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analysis
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pharmacology
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HEK293 Cells
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Humans
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Indans
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analysis
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pharmacology
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Inhibitory Concentration 50
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Kinetics
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Piperidines
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analysis
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pharmacology
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Plasmids
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Recombinant Proteins
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genetics
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metabolism
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Transfection
8.A review on implementation effects of National Essential Medicine System
Yu FANG ; Qian SHEN ; Caijun YANG ; Jie CHANG ; Lina WU ; Shimin YANG
Chinese Journal of Health Policy 2015;(4):12-17
Objective:To conduct a systematic review on the implementation effects of National Essential Medi-cine System ( NEMS) since the new health care reform and provide some suggestions to further improve the NEMS. Methods:Databases and relevant international organization reports were searched to collect studies related to the im-plementation of NEMS in China. The database search occurred from January 2009 to December 2014. Results:A to-tal of 1 292 studies were finally included, encompassing 1,277 Chinese papers, 12 English papers, and 3 WHO/HAI reports. A lot of researches have been done on NEMS, but the techniques of NEMS evaluation are not perfect. The sample representativeness is poor, and the longitudinal follow-up studies of the microscopic view is insufficient. . Evi-dence-based evaluation research using big data has just started. Conclusions: The research on NEMS should be strengthened. The NEMS evaluation should not only be based on national conditions, but it should also be in combi-nation with an international, multidimensional evaluation framework in terms of availability, affordability and rational drug use, so as to provide evidences to perfect the NEMS.
9.Effect of levodopa and benserazide hydrochloride on static balance stability of patients with Parkinson disease under different standing positions: digital evaluation methods with wearable device
Chang-Qing LI ; Xi WU ; Lin-Yong SHEN ; Xiao-Wu HU ; Jin-Wu QIAN
Chinese Journal of Clinical Medicine 2017;24(6):863-867
Objective:To evaluate the effect of levodopa and benserazide hydrochloride on static balance stability patients with of Parkinson disease (PD) by using wearable device.Methods:PD patients with Hoehn & Yahr stage of grade 3 were enrolled and age-matched healthy subjects were selected as control group.The balance stability data under different positions,including natural standing with open eyes,standing on the feet with open eyes and natural standing with close eyes,were recorded by wearable sensor in ON and OFF state of drug.The swing displacements of antero-posterior/medio-lateral (the center of gravity swing parameters) under different standing positions were compared between two groups.Results:Totally 12 PD patients with Hoehn & Yahr stage of grade 3 and 12 healthy subjects were selected.The age,gender,and score of Montreal cognitive assessment (MoCA) were not significantly different between two groups.In control group,the swing displacement under position of natural standing with open eyes was significantly less than that under position of natural standing with close eyes (P<0.05).In PD group,the swing displacement was not significantly changed in ON and OFF stage of drug.However,under position of natural standing with open eyes,the displacement of antero-posterior swing in PD group was significantly less than that in control group in OFF state of the drug (P<0.05);under naturally standing state with close eyes,the displacement of medio-lateral swing in PD group was significantly greater than that in control group (P<0.05).Conclusions:Digital wearable devices can effectively assess the balance stability of PD patients and healthy people;levodopa and benserazide hydrochloride do not improve the balance capacity of PD patients significantly;PD patients may have abnormal integration of visual and somatosensory.
10.Association of new functional SNP rs72689236 of CASP3 with Kawasaki disease: a meta-analysis.
Qian PENG ; Chang-Hui CHEN ; Qing WU ; Yuan YANG
Chinese Journal of Contemporary Pediatrics 2013;15(6):477-483
OBJECTIVETo investigate the association of rs72689236, a new functional single nucleotide polymorphism (SNP) of the gene encoding caspase-3 (CASP3), with the occurrence and development of Kawasaki disease by a meta analysis.
METHODSA literature search was performed using databases at home and abroad according to inclusion and exclusion criteria, to acquire studies on the relationship between rs72689236 and Kawasaki disease published up to November 2012, including case-control studies and transmission disequilibrium tests. An integrated meta analysis was performed using RevMan 5.1 software after the studies were screened and evaluated.
RESULTSSix studies were extracted for systematic review of the association between rs72689236 and Kawasaki disease. The frequency of allele A of the SNP was significantly higher in patients with Kawasaki disease than in the controls (OR=1.34, 95%CI=1.24-1.46, P<0.001); the risk for Kawasaki disease in children with allele A (AA+AG) increased by approximately 44% compared with children with GG (OR=1.44, 95%CI=1.27-1.65, P<0.001). The frequency of allele A of the SNP was significantly higher in Kawasaki disease patients with coronary artery lesions than in those without coronary artery lesions (OR=1.51, 95%CI=1.10-2.07, P= 0.01); the risk for coronary artery lesions in Kawasaki disease patients with allele A (AA+AG) increased by approximately 59% compared with Kawasaki disease patients with GG (OR=1.59, 95%CI= 1.00-2.53, P=0.05]. No association between this SNP and the therapeutic effect of intravenous immunoglobulin (IVIG) was found in patients with Kawasaki disease.
CONCLUSIONSThe allele A of functional SNP rs72689236 of CASP3 increases the risk for Kawasaki disease, and it may be used as the genetic marker for susceptibility to coronary artery lesions as a complication of Kawasaki disease. Currently, there is still no sufficient evidence that this SNP has an impact on the therapeutic effect of IVIG in patients with Kawasaki disease, and more studies are needed to investigate the feasibility of its application in individualized treatment.
Caspase 3 ; genetics ; Coronary Artery Disease ; etiology ; Genotype ; Humans ; Immunoglobulins, Intravenous ; therapeutic use ; Mucocutaneous Lymph Node Syndrome ; drug therapy ; etiology ; genetics ; Polymorphism, Single Nucleotide