1.Analysis of prevalence of vaginal Candida colonization in diabetic patients
Yuxi JIA ; Rihua JIANG ; Qi ZHANG
Journal of Jilin University(Medicine Edition) 2006;0(04):-
Objective To investigate the rate of vaginal colonization of Candida species in patients with diabetes,and to discuss the relationship between prevalence of vulvovaginal candidiasis(VVC) and diabetes mellitus(DM).Methods Genital tract examination and fungal cultures of discharge taken among 144 patients with DM(DM group) and 150 healthy subjects(control group) were performed.Chrom Agar Candida mediums were used to study the isolates of 64 strains cultured in 144 participants.Results The isolated rates of Candida species were 44.4%(64/144) in subjects with DM and 18%(27/150)in healthy subjects,the isolated rate of Candida species in DM group was prominently higher than that in control group(P
2.Effects of overexpressed SGK1 on the secretion of fibronectin in human podocytes
Xiaoli ZHANG ; Xiaoqiang DING ; Yuxi FENG
Chinese Journal of Pathophysiology 2000;0(12):-
AIM:To investigate the effects of high concentration of glucose on the expressions of serum and glucocorticoid induced protein kinase 1 (SGK1) and fibronectin in human podocytes and detect the production of fibronectin in human podocytes transfected with active and mutant forms of SGK1.METHODS: The expressions of SGK1 and fibronectin in human podocytes exposed in high glucose for 24 h were detected by using Western blotting. Human podocytes were transfected with three kinds of plasmid: pIRES2-EGFP-SGK1SD (SGK1-active plasmid), pIRES2-EGFP-SGK1KN (SGK1-mutant plasmid) and pIRES2-EGFP (empty vector plasmide). The synthesis levels of fibronectin were detected by immunofluorescence.RESULTS: The expression of SGK1 in normal human podocytes was observed and the expression level was up-regulated in podocytes exposed to high glucose for 24 h (50?4 vs 35?3), parallelly with the high expression of fibronectin (19?4 vs 12?2). The secretion of fibronectin was increased obviously in SGK1-active plasmid (SGK1SD) transfected podocytes compared with the vector transfected podocytes. Whereas, the fibronectin level was decreased significantly but not completely abolished in SGK1-mutant plasmid (SGK1KN) transfected podocytes, compared with SGK1SD transfected podocytes. CONCLUSION: SGK1 may be involved in the synthesis of fibronectin in human podocytes induced by high glucose and play a critical role in the activation of human podocytes during early stage of diabetic nephropathy.
3.Analysis of related detections before blood transfusion in tumor patients
Yuxi CHEN ; Lichuan ZHANG ; Jianfeng LIU
International Journal of Laboratory Medicine 2016;37(13):1770-1771,1774
Objective To investigate the detection situation and distribution of blood typing positive and negative disagree and irregular antibody positive in blood transfusion related tests in tumor patients ,and to make comparative analysis with the data of non‐tumor patients .Methods The results data in 16 760 patients with blood preparation in our hospital from November 2011 to June 2015 were selected and divided into the tumor patients group and the non‐tumor patients group .Among them ,the results of blood typing positive and negative disagree and positive in the irregular antibody screening test were statistically analyzed .Results 27 cases were ABO blood type positive typing inconsistent with reverse typing ,the occurrence rate of the tumor patients group was 0 .65% ,which of the non‐tumor patients group was 0 .08% ;the irregular antibody positive was in 49 cases ,in which 18 cases were in the tumor patients group with the occurrence rate of 0 .74% ,31 cases were in the non‐tumor patients group witht e occurrence rate of 0 .22% ,showing that the occurrence proportion of blood typing positive and reverse inconsistency and irregular antigen posi‐tive was higher than that of the non‐tumor patients group ,the difference was statistically significant (P<0 .05) ,31 cases in the non‐cancer group ,the positive rate is 0 .22% .18 cases in cancer‐group with 0 .74% incidence rate .It shows that the proportion of posi‐tive in cancer patients was higher than non‐cancer patients (P<0 .05) .The main influencing factors affecting blood typing problems in the tumor patients group and non‐tumor patients group were the antibody weakening ,followed by autoantibody ,etc .the reasons for the irregular antibody screening positive in the two groups were mainly the specific antibodies .Conclusion The disease charac‐teristics of tumor patients are easier to cause ABO blood type positive and reverse inconsistency and irregular antibody screening positive .In the work ,more attention should be paid to the detection results for avoiding the missed detection ,increasing the identifi‐cation ability and ensuring the blood transfusion safety .determination is more often in cancer patients about Tests about blood transfusion ;This should be relate to character of phymatosis .Much concern should be given to related test of cancer patients′blood transfusion ,avoiding omissions ,and improve the safety of blood infusion .
4. Shallow Fire-needle Acupuncture Stimulation Plus Cupping Relieves Neuralgia and Down-regulates Serum Substance P Level in Patients with Acute Herpes Zoster
Acupuncture Research 2018;43(8):492-494
OBJECTIVE: To observe the influence of repeated shallow fire-needle acupuncture stimulation plus cupping on local neuralgia and serum substance P(SP)content in patients with acute herpes zoster (AHZ). METHODS: A total of 60 cases of AHZ patients were randomly divided into control (medication) group and treatment (medication plus fire-needle) group (n=30 in each). Patients of both groups were ordered to take Famciclovir (0.25 g/time, three times a day) and Mecobalamin (0.5 g/time, three times a day) orally for 7 days. In addition, patients of the treatment group were also treated by repeated shallow fire-needle stimulation and cupping, once a day for 7 days. Before and after the treatment, the patient's pain severity was assessed using visual analogue scale (VAS) and serum SP concentration was measured using ELISA. RESULTS: After the treatment, the VAS scores and serum SP concentrations in both groups were significantly decreased in comparison with those of their own pre-treatment (P<0.01), and were significantly lower in the treatment group than in the control group(P<0.01). There was a highly positive correlation between the decreased VAS score and serum SP content in the treatment group(P<0.01). CONCLUSION: Repeated shallow fire-needle stimulation plus cupping can accelerate the relief of local neuralgia in AHZ patients, which may be associated with its effect in down-regulating serum SP level.
5.The Anti Tumor Effect of Hyaluronic Acid Decoreted Chlorogenic Acid Liposomes on Mice Bearing Uterine Cervical Carcinoma (U14)
Yuxi ZHAO ; Ying WEI ; Zhen CHEN ; Shipeng ZHANG ; Fan ZHANG
Progress in Modern Biomedicine 2017;17(26):5029-5033
Objective:To optimize the formulation of HA-CA liposomes and to study the anti-tumor effect of HA-CA liposomes on uterine cervical carcinoma mice.Methods:The methods of preparing HA-CA liposomes were screened,and the optimal fomulation was selected by the orthogonal design experiment with the the phospholipids/cholesterol ratio,the drug/lipids ratio and the pH value of PBS buffer was 7.4 as entrapment enfficiency was the index.The release of HA-CA liposomes was studyed by dialysis bag method.Uterine cervical carcinoma cells were inoculated subcutaneously into right axillary ofBal b/c mice,after continuous treatment of 14 d,we weighed the tumor and calculated the rate of tumor growth inhibition.Results:HA-CA liposomes were prepared by thin film hydration methods.The optimal parameters were as follows:the phospholipids/cholesterol ratio was 4∶1,the drug/lipids ratio was 1∶ 30,the pH value of PBS buffer was 7.4.The release curve of HA-CA liposome and CA liposome was basically the same,both of which a sustained-release efficacy.The cumulative release of HA-CA liposomes and CA liposomes were 78.39% and 83.01% at 48h.The inhibition rate of HA-CA liposomes on U14 cervical cancer mice was 60.39% and significantly higher than that of positive control group,which was higher than that of CA and CA liposomes.Conclusions:HA-CA liposomes can significantly inhibit the effect of U14 cervical cancer nude mice higher than that of CA and CA liposomes owe to the modification of the active target ligand HA.
6.Design of the Mobile ECG Monitoring System Based on Android 4.3.
Shun ZHANG ; Yuxi LIAN ; Yajie QIN ; Yuanyuan WANG
Chinese Journal of Medical Instrumentation 2015;39(4):261-264
To monitor and record Electrocardiograph (ECG) signals for 24 hours, a mobile ECG monitoring system is designed based on Android 4.3. In this system, domestic indigenous E9622A is used to acquire ECG signals and TI CC2541 is adopted to communicate with mobile phones. The program is implemented on the Android platform to display and process ECG signals. The whole system is integrated on a 2 cm x 2 cm PCB. From experiments, it is shown that ECG signals can be obtained effectively when this system is worn, and clear ECG waveforms and parameters can be shown on the phones. With this system, arrhythmia can be diagnosed preliminarily. It is also shown that the system is low-power, low-cost, flexible and portable.
Arrhythmias, Cardiac
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diagnosis
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Cell Phone
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Electrocardiography
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Humans
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Monitoring, Physiologic
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instrumentation
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Software
7.PGP and MRP are involved in the regulation of penetration of oxcarbazepine through blood-brain barrier in rat after pilocarpine induced seizures
Aimei MA ; Shouwen ZHANG ; Fengyun HU ; Yuxi LIU
Chinese Journal of Nervous and Mental Diseases 2009;35(12):726-729
Objective To study the effect of inhibitors of the multidrug transporters including P-glycoprotein (PGP)and multi-drug resistance-associated protein(MRP)on the regulation of concentration of oxcarbazepine in the extra-cellular fluid of the hippocampus after pilocarpine induced seizures in rats.To investigate whether oxcarbazepine are sub-strate for PGP and MRP and whether brain expressions of PGP and MRP are involved in muhidrug resistance mechanisms of refractory epilepsy.Methods The epileptic rats model were established by repeated peritoneal injection treatment with pi-locarpine.Thirty-two Wistar rats were divided into four groups:control group,pilocarpine epileptic model group,verapamil treated group and probenecid treated group.At 30,60,90,120 and 150 min following systemic injection of oxcarbazepine (80 mg/kg),dialysate was collected and the concentration of oxcarbazepine in the extracellular fluid of hippocampus was determined by microdialysis and high-performance liquid chromatography technique.Results After systemic injection of oxcarbazepine,the concentration of oxcarbazepine in extracellular fluid of the hippocampus during 90~150 min(1.26±0.09、0.93±0.10)were much higher in verapamil treated group than in pilocarpine epileptic model group(0.87±0.06、0.66±O.04)(P<0.05)and the concentration of oxcarbazepine in the hippocampus during 60~150 min(1.07 4±0.11、1.32±O.13、1.02±0.10、0.87±0.08)were higher in probenecid treated group than in pilocarpine epileptic model group (0.81±0.08、0.87±0.06、0.66.4±0.04、0.58±0.06)(P<0.05).Conclusions Oxcarbazepine are substrates for PGP and MRP and,penetration of oxcarbazepine through blood-brain barrier are restricted by PGP and MRP.Increased expres-sions of PGP and MRP in brain maybe involved in the mechanisms of multidrug resistance of refractory epilepsy.
8.Regulatory effect of human beta-interferon matrix attachment region on transgene expression in CHO cells
Yuxi ZAN ; Tianyun WANG ; Junhe ZHANG ; Li WANG
Chinese Journal of Tissue Engineering Research 2007;0(29):-
BACKGROUND: Matrix attachment region (MAR), a DNA sequence, is still bound to the nuclear matrices after chromatindigested with restriction endonuclease, not only affects expression of endogenous gene, but also overcames transgenic silence andimproves transcription and expression of exogenous gene. OBJECTIVE: To investigate the influence of ?-interferon MAR of CHO cells on the transgenic expression of chloramphenicolacetyltransferase (CAT). DESIGN, TIME AND SETTING: The opening experiment was performed at the Department of Biochemistry and MolecularBiology, Molecular Institute, Xinxiang Medical College from October 2006 to April 2007. MATERIALS: CHO cell lines were obtained from China Center for Type Culture Collection. The pCATG vector of CAT and G418screening markers were constructed by this laboratory. METHODS: Human ?-interferon MAR by PCR was digested with SacI/KpnI and BamHI/SalI, and was inserted into pCATGvector, which was propagated in Escherichia coli JM109, then extracted and purified followed by enzyme digestion analysis. Vectorof CAT expression cassette and human ?-interferon MAR by the two sides was successfully constructed, and christened aspCAT-MAR. Two methods were compared between CHO cells of pCATG transformation and CHO cells of pCATG-MARtransformation. After G418 selecting, genome DNA of cell lines of G418 was extracted, then primers for PCR to amplify the CATtarget gene fragment was designed. MAIN OUTCOME MEASURES: The activity of CAT was analyzed by ELISA method. It was also tested to see if thepCATG-MAR was stably integrated into genomic DNA in the transfected cells. RESULTS: CHO cells of pCATG transformation was screened to have 16 strains of positive cell, and CHO cells of pCATG-MARtransformation was screened to have 17 strains of positive cell. Human ?-interferon MAR could increase the CAT gene expressionby 2.8 fold. The coefficient of variation of CHO cells of pCATG transformation was 2.065 0, and coefficient of variation of CHOcells of pCATG-MAR transformation was 0.813 1. Genome DNA of stable transformation cell lines was amplified by a fragment of437 bp. The results confirmed the pCAT-MAR vector was stably integrated into genomic DNA. CONCLUSION: Human ?-interferon MAR can increase transgenic expression in CHO cells and decrease the transgenicexpression variation in different transfected cells.
9.Diagnosis of metastases encephaloma by using susceptibility weighted imaging and contrast-enhanced T1-weighted imaging of MR before and after radiotherapy
Hengwu CUI ; Jinyi DONG ; Yuxi GE ; Lianhe ZHANG
Journal of Practical Radiology 2014;(12):1955-1957,1981
Objective To evaluate the value of susceptibility-weighted imaging (SWI)sequence in the diagnosis of metastatic en-cephaloma pre and after radiotherapy by comparing the appearance of the SWI and contrast-enhanced T1-weighted imaging(T1 WI). Methods Thirty-eight lung cancer patients with brain metastases underwent SWI and contrast-enhanced T1-weighted imaging re-spectively before and 2-3 months after radiotherapy.Evaluated the two methods by score(the score ranged from 0-3,0 represen-ted no showing,1 represented not showing clearly,2 represented could judging,3 represented showing obviously).Results Before radiotherapy,SWI detected 1 61 lesions of metastases and could obviously show tumor vascular in brain metastases (mean score 2.73±0.05).Contrast-enhanced T1 WI detected 1 61 lesions(mean score 1.93±0.04 ).SWI showed significantly higher score than enhanced T1 WI(P <0.05)through paired sample t test.After radiotherapy,SWI found 98 lesions (mean score 1.47±0.1 1 )and en-hanced T1 WI found 140 lesions (mean score 1.80±0.07),enhanced T1 WI had significantly higher score than SWI(P <0.05).Con-clusion SWI is superior to contrast-enhanced T1 WI to show the metastases before radiotherapy and can show tumor vascular in brain metastases obviously.SWI is inferior to enhanced T1 WI after radiotherapy.It has some value and may provide a new method for evaluating effects of radiotherapy.
10.Study of clinical blood management mode for regional medical center
Jianfeng LIU ; Lichuan ZHANG ; Yuxi CHEN ; Shuhua WANG
International Journal of Laboratory Medicine 2015;(15):2218-2220
Objective To explore the management mode of regional clinical blood ,as well as the role of Regional Medical Center in the blood management ,and have a comprehensive understanding of Daxing district clinical blood using present situation .Methods Organized Daxing district clinical blood using quality control center experts to do a research of 18 medical institutions in the blood management status of clinical blood demand within the jurisdiction ,and analyzed the statistics related to clinical use of blood in vari‐ous medical institutions from January to December in 2014 ,according to Beijing Wei Yi [2008]189 words in medical institutions of Beijing City ,the department of transfusion(blood bank) in the relevant provisions of the basic standard.Results Through the sur‐vey ,only regional medical center established the department of transfusion in 18 medical institutions ,other medical institutions have set up blood bank .Practitioners of department of transfusion (blood bank) in the number full‐time staff ,with post qualification num‐ber and degree of structure ,difference between regional medical center and other kind hospitals was significant (P<0 .01) ,but no statistical differences in the structure of professional title (P>0 .05) .Three grade hospitals in biological safety and continuous im‐provement of quality ,could be carried out in accordance with the PDCA cycle ,and have obvious advantages compared with the other one or two grade hospitals .Conclusion Fifteen medical institutions do not have the clinical blood transfusion compatibility testing conditions .To ensure the safety of blood for clinical use ,blood need to be tested by the department of transfusion regional medical center .