1.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.
2.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 .
3.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
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.Changes of cognitive function and spinophilin expression after partial hepatectomy in APP/PS1 transgenic mice
Fan ZHANG ; Yanjie WAN ; Jing XU ; Yuxi CAI
Chinese Journal of Behavioral Medicine and Brain Science 2013;(2):110-112
Objective To investigate the effects of partial hepatectomy on spatial learning and memory abilities and the expression of spinophilin,which was used as a marker to quantify changes in dendritic spine density in the hippocampus of APP/PS1 transgenic mice.Methods 3-month-old and 6-month-old male APP/PSI transgenic mice and 3-month-old wild-type male littermates were divided into five groups based on their genetic background:3-month-old control (group A,n =8),anesthesia (group B,n =32),surgery (group C,n =32),littermates control(group D,n =8),6-month-old control (group E,n =8).According to the different time points at day 1,3,7,14 after anesthesia or surgery,group B and C were divided randomly into 4 subgroups:B1,B3,B7,B14 and C1,C3,C7,C14.The spatial learning and memory abilities were detected by Morris water maze test in each group at the corresponding time points.Meanwhile,spinophilin expression was detected by Western blot and Immunocytochemistry in the hippocampus.Results Compared with the same time point subgroup B,the latency to find a hidden platform was longer and the frequency of passing through the platform was decreased in Group C at day 3,7,14(P < 0.05).No significant differences were found among group A,group D,and group B (P > 0.05).The grey value and Western blot relative integrated optical density of spinophilin in group A(1 609 453 ±92 801/0.471±0.015),approached the Group D(1 329 398.4±77 783/0.434±0.008)(P>0.05),were significantly increased compared with that(801 678 ± 10 505/0.053 ± 0.003) in group E (P < 0.01).Compared with the Group A,the same time point subgroup B and subgroup C14,the grey value and Western blot relative integrated optical density of spinophilin were decreased in Group C at day 1,3,7 (P < 0.05).Conclusion Partial hepatectomy can impair spatial learning and memory abilities of the APP/PS1 transgenic mice,which is closely related to the decrease expression of spinophilin in hippocampus.
8.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 .
9.The inhibitory effect of eupatorium japonicum thunb and foeniculum vulgare extract on prostatic hyperpla-sia in rats
Wei TANG ; Guangcheng DAI ; Boxin XUE ; Yuxi SHAN ; Wenfang ZHANG
Journal of Medical Postgraduates 2014;(12):1266-1268
Objective Benign prostatic hyperplasia ( BPH) is one of common diseases in aged males , and searching for new therapeutic drugs to BPH has been a research hotspot in recent years .This article was to study the inhibitory effect of eupatorium ja-ponicum thunb and foeniculum vulgare extract ( EFE) on benign prostatic hyperplasia in rats and its possible mechanism . Methods 48 male rats were randomly divided into 6 groups:normal control group without any treatment , model group of BPH treated with subcu-taneous injection of testosterone propionate , positive control group of BPH treated with dutasteride , high, middle and low dosage groups according to different EFE dosage (156 mg/kg, 234 mg/kg and 312 mg/kg).45 days after the treatment, the rats were sacrificed for measurement of the prostate glandular wet weight , the index of prostate gland ( PI ) , the morphological changes of prostate gland by light microscopy and the content of sex hormone . Results The prostate wet weight and PI decreased after EFE treatment for 45 days compared with the BPH model group(P<0.01 ).The hyperplastic glandular epithelium papilla waned and even disappeared in three EFE groups under the light microscope , and the epithelial cells became cubical or flat .High dosage EFE group (312 mg/kg) has simi-lar efficacy to dutasteride group .EFE significantly reduced serum testosterone content , dihydrotestosterone content and T/E2 ratio( P<0.05 ). Conclusion EFE can significantly inhibit prostatic hyperplasia in rats , and its mechanism is related to the decrease of the contents of serum testosterone and dihydrotestosterone as well as T/E2 ratio.
10.Effects of hepatolobectomy on space learning capability and hippocampus Drebrin and PSD95 expressions in APP/PS1 transgenic mouse model of Alzheimer's disease
Yuxi CAI ; Jing XU ; Yanjie WAN ; Fan ZHANG
Chinese Journal of Geriatrics 2014;33(9):1014-1017
Objective To study the influences of hepatolobectomy on space learning capability and the expressions of Drebrin and PSD95 in the hippocampus in APP/PS1 transgenic mouse model of Alzheimer's disease.Methods A total of fifty-four 3-month-old APP/PS1 transgenic mouse were randomly divided into 3 groups:3-month-old control group,sham surgery group,hepatolobectomy group,3-month-old littermates control group and 6-month-old control group.Morris water maze test was used to observe space learning capability on the 1st,3rd,7th,14th day after surgery,meanwhile the expressions of Drebrin and PSD95 in hippocampus were measured by Western blotting.Results Compared with the sham surgery group,the results of the Morris water maze test were decreased in hepatolobectomy group at day 3,7,14 after surgery [(62.9±6.9) s vs.(35.7±12.2) s,(66.3± 9.5) s vs.(39.3±8.3) s,(67.1±7.5) s vs.(32.6±14.1) s],and 6-month-old control group [(75.9±12.1) s] (all P<0.05).The escape latency were (62.9±6.9)s,(66.3±9.5)s,(67.1± 7.5)s and (75.9±12.1)s,the probe trials were (2.1±0.7) times,(1.83±1.5) times,(2.5±1.9) times and (1.8±0.8) times respectively in hepatolobectomy group at day 3,7,14 after surgery and 6-month old control group.No significant differences in the results of the Morris water maze test were found among 3-month-old control group,3-month-old littermates control group,and sham surgery group.Compared with 3-month-old control group and sham surgery group atday 1,3,7,14 after surgery the expressions of Drebrin were decreased in 6-month-old control group and the hepatolobectomy group at the same time points.Meanwhile,the expression of Drebrin in hepatolobectomy group was increasedat day 14 versus day 7 after surgery.Compared with 3 month-old control group,the expression of Drebrin was increased at day 7 after sham surgery.Compared with 3-month-old control group and sham surgery group at day 3,7 and 14,the expressions of PSD95 were decreased in hepatolobectomy group at the same time points.Compared with 3-month-old control group,the expression of PSD95 was increased in sham surgery group at 7th day (P<0.05).Between 3 month-old control group and 3-month-old littermates control group,the expressions of Drebrin and PSD95 had no significant differences.Concltsions Hepatolobectomy can impair the capabilities of space learning and memory in 3-month-old APP/PS1 transgenic mice,which may be associated with the decreased expressions of Drebrin and PSD95 in hippocampus.