1.Diagnosis and therapy status of mesenteric venous thrombosis
Chinese Journal of Interventional Imaging and Therapy 2009;6(6):590-593
Mesenteric venous thrombosis (MVT) is a kind of rare intestinal anemic disease.Because the clinical manifestations of MVT do not have high specificity,early diagnosis is difficult.In recent years,with huge progress of medical imaging technology,particularly the clinical application of spiral CT and MRI,the early diagnosis of MVT became possible.With the development of interventional therapies,especially the maturity of the interventional treatment technology such as mesenteric artery perfusion with papaverine,thrombectomy and thrombolysis via percutaneous transhepatic portal vein and so on,MVT mortality rate reduced greatly.The diagnosis and therapy status of MVT were reviewed in this article.
2.Design and application of hospital material management system
Chinese Medical Equipment Journal 1993;0(06):-
In order to improve the scientificity and rationality of materiel management,we developed the materiel management system and realized the computerizing of material management. This system can solve all problems in material computerizing which occur during the process from the material application to its abandonment. Aiming at solving disadvantages in human management,the utilization of this system will greatly reduce the staff's work load,enhance the working efficiency and make the material management standardized.
3.Construction of Eukaryotic Expression Vector with HIV-1 Integrase for Expression in Hela Cells
Wangang GU ; Li ZHANG ; Xuan ZHANG
Journal of Kunming Medical University 2013;(9):42-45
Objective To construct recombinant eukaryotic expression vector for EGFP fused HIV-1 integrase expression. Methods Wild type of HIV-1 integrase gene was cloned into eukaryotic expression vector-pcDNA6/V5-HisA. After restricted enzyme mapping, PCR confirmation and sequence confirmation, the recombinant plasmid was transfected into HeLa cells with Lipofectamine2000. After 24 hours, the expression of integrase was examined by immunofluorescence with confocal fluorescent microscopy. The cells were fixed with 4%paraformaledhyde. The cell nuclei were stained with Propidium Iodide (PI). Then the expression was imaged and analyzed with Confocal Microscopy. Results The integrase expressed significantly in HeLa cells in 24 hours after transfection. Integrase was expressed and localized into nuclei mainly. After fixed with 4% paraformaldehyde, the cell nuclei were stained with PI. When nuclei were showed in red in normal cells, the nuclei with integrase over expression turned yellow or orange. Conclusion The construction of eukaryotic expression vector of integrase was successful. Integrase was expressed and localized into nuclei mainly after transfection in HeLa cells.
4.Discovery of Protease Inhibitors of HIV-1 through Structure Based Virtual Screening
Wangang GU ; Li ZHANG ; Xuan ZHANG
Journal of Kunming Medical University 2013;(8):19-22
Objective Through new virtual screening tools of PyRx to run AutoDock Vina to virtually screen the 20000 compounds in ZINC database,so as to discover new HIV protease inhibitors, and make a tentative study of the combination model of them with HIV protease. Methods The study focused on the targets of HIV protease, the virtual screening program of AutoDock Vina was used to virtually screen the compounds in ZINC database. It was differing from previous studies by using new virtual screening tools of PyRx to run AutoDock Vina. The HIV protease crystal structure (PDB ID:4phv) was downloaded from PDB and dealed with AutoDock Tools. Compound structure was downloaded from ZINC database and imported with PyRx, processed into format of pdbqt. The post-screen compounds were imported into AutoDockTools, and the data were outputted with PyMOL.Results There were 1000 drugs of small molecular compound for high-throughput screening from about 20000 compounds in the library. After screening for 3 times we found five highly active HIV protease inhibitors from the 1000 small molecular compounds.Conclusion The further development of the five new HIV protease inhibitors will contribute to the treatment and basic research of HIV,and provide new reference for structure-based virtual screening and discovery of HIV drugs.
5.Acute renal failure induced by primary hyperuricemia in children: a case report.
Yan LIU ; Bi-li ZHANG ; Xuan ZHANG
Chinese Journal of Pediatrics 2005;43(7):525-525
Acute Kidney Injury
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blood
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diagnosis
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etiology
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Child, Preschool
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Humans
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Hyperuricemia
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blood
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complications
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Kidney
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pathology
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Magnetic Resonance Imaging
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Male
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Uric Acid
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blood
6.MRI evaluation of the posterior meniscus root tear
Jianjun ZHANG ; Zhuozhao ZHENG ; Xuan LI
Chinese Journal of Radiology 2010;44(12):1300-1303
Objective To determine the value of MRI for diagnosing the posterior meniscus root tear. Methods MR examinations of 30 patients with tear of the posterior meniscus root confirmed by knee arthroscopies were retrospectively reviewed. Of the 30 patients, 17 with posterior medial meniscus root tear (MMRT) and 13 with posterior lateral meniscus root tear (LMRT). The diagnostic sensitivity of MRI for the posterior meniscus root tear was analyzed. Fisher's exact test was used to compare the detection rate of MRI for MMRT with that for LMRT. Results All 17 cases with MMRT and 9 cases out of 13 with LMRT were correctly diagnosed by MRI and the diagnostic sensitivity of MRI for the posterior meniscus root tear was 86. 7% (26/30). The main MR appearance of the posterior meniscus root tear was distortion of the meniscal root, with its low signal replaced by abnormal high signal. The detection rate of MRI for MMRT (17/17)was significantly greater than that for LMRT (9/13) ( P =0. 026). The prevalence of MMRT associated with meniscus extrusion ( 15/17 ) was significantly greater than that of LM RT ( 6/13 ) ( P = 0. 020), but the prevalence of MMRT associated with anterior cruciate ligament (ACL) injury (5/17) was significantly lower than that of LMRT (11/13) (P = 0. 004). Conclusion MRI is a relatively good method for detection of posterior meniscus root tears and associated injuries.
7.Clinical efficacy of Shenkang injection combined with valsartan in the treatment of patients with early stage diabetic nephropathy
Xuan ZHANG ; Bo LI ; Lin WANG
Chinese Journal of Primary Medicine and Pharmacy 2016;23(6):911-914
Objective To study the clinical effect of Shenkang injection combined with valsartan in the treat-ment of patients with early stage diabetic nephropathy,and its influence on the expression changes of homocysteine ( Hcy) ,transforming growth factor β1 ( TGF -β1 ) , the inflammatory cytokines high sensitive C -reactive protein (hs-CRP),and interleukin-6 (IL-6).Methods 138 cases of early stage diabetic nephropathy were randomly divided into control group ( conventional treatment, valsartan act as antihypertensive drug ) and treatment group ( treated with Shenkang injection combined with valsartan) by digital table.The total effective rate,glycemic index, renal function,levels of Hcy and TGF-β1,expression levels of inflammatory cytokines of two groups were compared. Results The total effective rate of the treatment group (91.30%) was significantly higher than the control group (76.81%) (χ2 =5.004,P<0.05).The values of FPG,2h PG,HbAlc,UAER,CysC and Scr were lower in the treat-ment group compared with the control group (t=4.514,3.743,4.754,6.214,3.925,3.777,all P<0.05).Com-pared with the control group,the concentrations of Hcy,TGF-β1,hs-CRP and IL-6 decreased significantly[ (11. 78 ±1.95)μmol/L vs (9.21 ±1.64)μmol/L,(71.32 ±14.88) mg/L vs (60.04 ±11.75) mg/L,(7.07 ±1.25) mg/L vs (5.81 ±1.14)mg/L,(50.24 ±21.86)pg/mL vs (32.55 ±17.01)pg/mL],the differences were statistical-ly significant (t=8.378,4.942,6.187,5.305,all P<0.05).Conclusion Shenkang injection combined with val-sartan for the treatment of early stage diabetic nephropathy has significant clinical efficacy.It can improve patients're-nal function and reduce blood sugar levels.The effects may be related with inflammatory response inhibition and Hcy, TGF-β1 levels reduction.
8.Effect of body mass index on outcomes of in vitrofertilization for infertile females at different ages
Pei LI ; Jing ZHANG ; Xuan JIN
Chinese Journal of Tissue Engineering Research 2016;20(15):2212-2217
BACKGROUND:The effect of body mass index (BMI) on the outcomes ofin vitrofertilization (IVF) is controversial. Some scholars suggested that the higher BMI, the lower rate of pregnancy, and the higher rate of abortion. However, some others got the different results. To data, the effects of BMI on the pregnancy outcomes in females at different ages are rarely reported.
OBJECTIVE:To explore the effect of BMI on the pregnancy outcomes of IVF for infertile women atdifferent ages.
METHODS:A total of 902 cycles undergoing IVF were divided into two groups according to the age:≤ or> 35 years old groups. The patients in each group were then divided into four subgroups according to BMI: low weight, normal weight, excess weight, and obesity subgroups, respectively.
RESULTS AND CONCLUSION: With increasing BMI, the average dosage of gonadotropins was increased gradualy in two both of age groups (P < 0.05). In the≤ 35 years old, the levels of estrogens on the day of injecting human chorionic gonadotropin was significantly lower in obesity group than the other subgroups (P < 0.05); the rates of empty folicle in excess weight and obesity subgroups were significantly higher than that in normal weight subgroup (P < 0.008 23). The fertilization rate and clinical pregnancy rate of in obesity subgroup were significantly lower than those in the other subgroups (P < 0.05). In the > 35 years old group, the empty folicle rate in obesity subgroup was significantly higher than that in normal weight subgroup (P < 0.008 23). Fertilization rate in excess weight and obesity subgroups was significantly lower than that in the normal weight subgroup (P< 0.008 23). There were no significant differences in cleavage rate, cycle cancelation rate, implantation rate, biochemical pregnancy rate and abortion rate between four subgroups (P> 0.05). These findings suggest that in the females at the younger age, BMI not only affects the quality of folicles and fertilization rate; but with increasing BMI, clinical pregnancy rate is decreased obviously. However in the females at the older age, BMI only affects the folicular quality, embryo quality and fertilization rates; there are no significant differences in the outcomes of pregnancy in the four subgroups. BMI have effects on pregnancy outcomes of IVF, and the effects are much greater in the younger female group.
9.Analysis of cognitive dysfunction and its related factors in patients with diabetes mellitus
Qiaojun ZHANG ; Xuan XIE ; Li XIANG
Journal of Clinical Neurology 1993;0(03):-
Objective To investigate the changes of the cognitive function in patients with type 2 diabetes mellitus,and the correlated sensitive index and risk factors were evaluated.Methods Mini-mental state examination (MMSE),Wechsler Memory Scale-Revised (WMS-R) and Event-related potentials (ERP) were tested in 100 type 2 diabetic cases and 40 normal controls,and the relations of cognitive function,P_3 peak latency (PL) to course of disease,treatment and glycohemoglobin A1 (GhbA1) were analysed respectively.Results The scores of MMSE and WMS-R in patient group were lower than those in control group( P
10.Evaluation of effects of uterine artery embolization for uterine fibroid by color Doppler sonography
Zhaohui LIU ; Lufang ZHANG ; Xuan LI
Chinese Journal of Minimally Invasive Surgery 2005;0(10):-
Objective To assess the clinical value of color doppler sonography in the evaluation of effects of uterine artery embolization(UAE) for the treatment of uterine fibroid.Methods Twentythree patients with symptomatic uterine fibroid were given transvaginal color Doppler sonography before and 1~7 days,1~3 months and 6~12 months after the UAE.Measurements of the uterus,myomas,and resistance index(RI) of the uterine artery were obtained. Results Out of 21 patients examined at 1~7 days after UAE,the uterus volume increased by a mean of 10% in 7 patients(4%~63%) and decreased by a mean of 21% in 14 patients(1%~67%) with the dominant myoma decreased by 24% in size(1%~56%).In 21 patients examined at 1~3 months after embolization,the uterus and dominant myoma decreased in size by 53%(24%~82%) and 47%(6%~88%),respectively.In 19 patients examined at 6~12 months,the uterus and myoma decreased in size by 66%(5%~91%) and 71%(32%~99%),respectively.Vessels inside and surrounding the myoma remarkably diminished or completely disappeared after embolization.No statistically significant changes in uterine artery RI were noted before and after UAE(F=0.47,P=0.70).Symptomatic improvements were achieved in 87% of patients(20/23) at 1 year after UAE. Conclusions UAE for the treatment of symptomatic uterine fibroid is safe and effective.Color Doppler sonography can evaluate the effect of UAE by means of measuring the volume of the uterus and myoma and the hemodynamic changes of the uterine artery before and after embolization.