1.Effect of cyanin on the expression of L-glutamate and L-aspartate transporter in high glucose cultured retina Müller cells
Chinese Journal of Ocular Fundus Diseases 2011;27(2):170-173
Objective To observe the effect of cyanin on the expression of L-glutamate/ L-aspartate transporter (GLAST) in high glucose cultured retina Müller cells. Methods The retinal tissue of SpragueDawley (SD) rats was collected at postnatal 10 day, and Müller cells were isolated and cultured according to literature. The Müller ceils (2nd-4th generations) were treated with five different medium as normal group (group A), high glucose control group (group B), high glucose+30 μmol/L cyanin group (group C), high glucose+60 μmol/L cyanin group (group D) and high glucose+100 μmol/L cyanin group (group E). Cell relative survival rates (A value) were measured by MTT assay at 570 nm. The GLAST protein expression in M011er cells was observed by Western blot. Results MTT assay showed that the A value of the five group were 0. 450 8±0. 020 4, 0. 270 1±0. 031 4, 0. 332 0±0. 023 2, 0. 428 3±0. 017 2, 0. 361 9±0. 027 0,the cell relative survival rate were 100. 0%, 59. 9%, 73.6%, 95%, 80.3% respectively. The A value of group C, D, E were significantly higher than that of group B (F=32.25, P<0.05), the A value of group D were significantly higher than that of group C and E (F=21.07, P<0. 05). Western blot showed that the GLAST protein expression of group B was lower than that of group A (t=5.25, P<0. 05) ; there was no obvious changes of GLAST protein expression in group A, C, D and E (F= 2. 979, P>0.05).Conclusion Cyanin can rescue high glucose-induced GLAST reduction.
2.Laparoscopic versus Open Cholecystectomy in Aged Patients in Plateau Region:A Clinical Comparison of Cardiopulmonary Complications
Chinese Journal of Minimally Invasive Surgery 2005;0(08):-
Objective To evaluate the safety of laparoscopic cholecystectomy's in aged patients in plateau region.Method From January 2005 to June 2006,a total of 64 local aged gallbladder disease patients were included,in which 32 cases received open cholecystectomy(OC)and 32 cases received laparoscopic cholecystectomy(LC).Postoperative cardiopulmonary complications were compared.Results In the LC group,1 case of acute pneumonedema,1 case of chronic right heart failure and 1 case of pulmonary infection occurred;and 3 cases of left heart failure accompanied with pneumonedema,2 cases of right heart failure and 5 cases of pulmonary infection occurred in the OC group.The incidence of cardiopulmonary complications of the LC group was significantly lower than that of the OC group(9% vs 31%,?2=4.730,P=0.030).Conclusions In the circumstances of high altitude,low atmospheric pressure and low oxygen partial pressure,LC is safer than OC for aged patients in regard to postoperative complications.
3.Meta analysis of non-penetrating trabecular surgery versus trabeculectomy for the treatment of open angle glaucoma.
Min, KE ; Jing, GUO ; Zhigang, QIAN
Journal of Huazhong University of Science and Technology (Medical Sciences) 2011;31(2):264-70
This study compared the efficacy of non-penetrating trabecular surgery and trabeculectomy for the treatment of open angle glaucoma. We searched the Cochrane Library, PUBMED (1966 to 2009), Embase (1980 to 2009) and CMB-disk (1979 to 2009) for the randomized clinical trials (RCT) concerning the two treatment strategies. The reports, including the papers listed in bibliographies, were evaluated against a set of quality criteria and the RCTs that satisfied the criteria were selected and subjected to Meta analysis by employing the Cochrane Collaboration's RevMan 4.5 software package. A total of nine RCTs were included in the study. The analyses of the reports showed that, 12 months after surgery, there was significant difference in the reduction of interocular pressure (IOP) between non-penetrating trabecular surgery and trabeculectomy (Z=6.05 P<0.00001). There also existed statistically significant difference in the reduction of IOP at the censored time between the two procedures (Z=4.92, P<0.00001). Difference in the success rate was also found between the two surgeries (Z=3.82, P=0.0001). It is concluded that, compared with the non-penetrating trabeculectomy, the traditional trabeculectomy could reduce IOP more and had higher success rate while the non-penetrating trabecular surgery is associated with lower postoperative complications.
4.Accuracy of dual-energy CT in diagnosing gouty arthritis:a Meta-analysis
Xuexia SHENG ; Zhihong CAO ; Zhigang MIN
Journal of Practical Radiology 2015;(6):974-977
Objective To estimate the diagnostic value of dual-energy CT in gouty arthritis.Methods English and Chinese litera-tures publicated before May 2014 were searched in PubMed,Embase,Cochrane and Wanfang database.Available literatures were selected according to the inclusion and exclusion criterias.Sensitivity,specificity with 95% confidence interval (95% CI)was pooled with bivariate random-effects model.Hierarchical weighted symmetric summary receiver-operating curve (HSROC)was also used in estimating.Meta-regression and sensitivity analysis were used to explore the potential sources of heterogeneity.Results Nine studies were included in the analysis.The pooled sensitivity,specificity and 95% CI were 92%(84-96%)and 88%(83-92%)respectively, area under the HSROC curve was 0.91 (0.88-0.93).There was substantial heterogeneity between studies(I 2 =85%).Conclusion Dual-energy CT is accuracy in diagnosing gouty arthritis.The sources of heterogeneity was not been explored.
5.Progresses of ultrasound in evaluation of myocardial function for sick sinus syndrome
Xue FENG ; Min LU ; Zhigang WANG
Chinese Journal of Interventional Imaging and Therapy 2017;14(7):444-447
Sick sinus syndrome (SSS) is a disease of multiple arrhythmias and symptoms.It has great impact on patients in the quality of life for the symptoms of high incidence.The asynchrony of myocardial electromechanical movement caused by the SSS electrophysiological changes are focused.The ultrasound can not only observe the electrical physiological activity,but also measure the mechanical movement caused by electrophysiological delay.The research progresses of ultrasound in quantitative evaluation of myocardial function in SSS patients was reviewed in this article.
6.Analysis of pre-hospital treatment characteristics of patients with cerebrovascular disorders
Zhigang CHEN ; Suqin LU ; Yiping SUN ; Min WU
Chinese Journal of General Practitioners 2013;12(10):829-830
The medical records of stroke patients at Zhenjiang Emergency Medical Center from January 1 to December 31,2011 were analyzed.A total of 797 stroke patients were managed,accounting for 10.42 percent of the emergency number over the same period.The average ages of males and females were (67 ± 14)and (72± 14)years old respectively (P < 0.01).The incidence rate increased with age (P <0.05).The highest incidence occurred from 9:00 to 10:00 (n =61,7.7%),while the lowest incidence at 4:00 to 5:00 (n =9,1.1%).A total of 552 (69.3%) cases were sent to class 3A hospitals; the number of patients who independently option hospital were 626 cases (78.5%).Emergency response time (from call to arrival) was an average of 13.49 minutes.A total of 318 cases (39.9%) took no more than 10 minutes and first aid an average of 38.11 minutes.
7.The application value in diagnosis of chronic atrophic gastritis using the magnifying endoscopy and narrow-band imaging
Jinxuan DU ; Min HU ; Zhigang SHANG ; Binfang ZENG
Journal of Chinese Physician 2016;18(5):668-670
Objective To explore the application value in diagnosis of chronic atrophic gastritis using the magnifying endoscopy and narrow-band imaging.Methods A total of 98 cases of chronic atrophic gastritis patients was selected,and carried out the ordinary white light endoscopy,magnifying endoscopy and narrow-band imaging(ME-NBI) and pathological examination in file,followed by comparison of the results.Results The sensitivity and specificity of chronic atrophic gastritis by magnifying endoscopy and narrowband imaging mode were 74.07% and 82.35%,respectively;which were significantly higher than that obtained by conventional endoscopy,which were 48.15% and 64.71% (P <0.05).In magnifying endoscopy and narrow-band imaging endoscopy group,60 patients were positive,which intestinal metaplasia accounted for 35%,while in conventional endoscopy group,39 patients were positive which was only 17.95% (P < 0.05).Conclusions Magnifying endoscopy and narrow-band imaging can improve the diagnostic accuracy of chronic atrophic gastritis.
8.Effect of curcumin microemulsion on proliferation and apoptosis of human leukemia cell line K562 cells
Hongyan WU ; Lingling GENG ; Zhigang LIU ; Yalin DONG ; Min HE
Journal of Leukemia & Lymphoma 2013;22(10):578-581
Objective To determine the effects of curcumin microemulsion on proliferation and apoptosis of the human leukemia cell line K562 cells.Methods The curcumin microemulsion was prepared with the routine procedure.MTT assay was used to determine cell proliferation in cultured K562 cells,flow cytometry analysis was applied to examine cell apoptosis,and WT1 mRNA was determined with RT-PCR.The results about curcumin microemulsion were compared with these on curcumin.Results The prepared curcumin microemulsion was a stable clear solution with diameter of 10-100 nm.Curcumin microemulsion inhibited K562 cell proliferation by 24%,46%,68%with a 24 h incubation at dose of 2.5 μg/ml,5.0 μg/ml,and 10.0 μg/ml respectively,whereas curcumin reduced the proliferation by 6%,14%,25%at equal concentrations.WT1 mRNA level of curcumin microemulsion group(0.190±0.036)was reduced stronger than that of curcusin group(0.456±0.047).Conclusions Microemulsion is a great carrier for curcumin.Curcumin microemulsion is more effective in inhibiting proliferation,pro-apoptosis,and reducing WT1 gene expression than curcumin.A strong basis of medical value for the use of curcumin microemulsion to treat tumors is provided.
9.Cloning,expression and the immune characterization of panallergen profilin in coco(Cocos nucifera Linnaeus)
Guang MENG ; Min YAO ; Zhigang LIU ; Yulan WU ; Hongyun ZHANG
Chinese Journal of Immunology 1985;0(06):-
Objective:To clone and express panallergen profilin from the pollen of coco(Cocos nucifera Linnaeus).Methods:RT-PCR and RACE methods were applied to clone the full-length panallergen genes from coco pollen and the sequence was analyzed.The specific primers were designed.The ORF of profilin of coco pollen was amplified with RT-PCR and cloned into the expression vector pET 28a.Expression of the recombinant coco pollen profilin was carried out in E.coli BL21(DE3) and the purification of the recombinant protein was performed via affinity chromatography with Ni2+ coupled to sepharose.IgE reactivity to recombinant coco pollen profilin was investigated by immunoblot.Results:The complete sequence of coco pollen profilin was cloned.The sequence was 608 bp and included an open reading frame(396 bp) coding for 131 amino acids.Sequence analysis showed that the deduced protein was an acidic protein with an estimated molecular mass of 14.19 kD and a pI of 4.61.The GeneBank accession number of the clones was EF173598.After overexpressed in E.coli BL21(DE3),the recombinant protein was purified through affinity chromatography with Ni2+ coupled to sepharose.Immunoassay showed that the recombinant allergen has good IgE binding capacity.Conclusion:The profilin of coco pollen is expressed successfully in BL21(DE3),which will be used as a base for further study on coco pollen related allergy.
10.CT characteristics of extra-organic primary tumor in pelvis and the anatomic bases
Weixia CHEN ; Zhigang YANG ; Pengqiu MIN ; Ziyan HE
Chinese Journal of Radiology 1994;0(06):-
Objective To analyze the CT contrast enhanced features of the extra-organic primary tumors in pelvis and to evaluate anatomic bases of these imaging characteristics.Methods CT findings in 14 patients with pathologically proved extra-organic primary tumors in pelvis were reviewed retrospectively for tumor size,density,margins,contrast enhanced characteristics,location and relationship of the lesions with surrounding organs and tissues.Results There were benign tumors (n=3) and malignant tumors(n=11) in this study.There were 6 lesions in peritoneal cavity and 6 in retroperitoneal space of pelvis respectively,and two other masses were in both peritoneal cavity and retroperitoneal space of pelvis.CT scan revealed that there were 6 solid masses and 8 cystic-solid masses.The enhanced characteristics of lesions were homogeneous and heterogeneous in 3 and 11 patients respectively.The fatty space surrounding the lesion was invasive in 7 cases and all of them were malignant tumor.The fatty space surrounding lesion was clear in other 7 cases including 3 benign tumors and 4 malignant tumors.CT revealed calcification in 4 lesions including benign teratoma (n=2) , malignant teratoma (n=1), and carcinoid (n=1).Conclusion In the diagnosis of extra-organic primary tumors in pelvis,CT enhancement scan can reveal the anatomic location and relationships of the lesions with surrounding organs and tissues and can differentiate benign and malignant tumor to some degree.