1.A study of downregulation of miR-93 on the suppression of human glioma cell growth and invasion
Anling ZHANG ; Kun WANG ; Guangxiu WANG ; Zhifan JIA ; Peiyu PU
Journal of International Oncology 2012;39(1):68-72
ObjectiveTo confirm the effect of miR-93 inhibitor in glioma cell growth and invasion.MethodsMalignant glioma cells were transfected with miR-93 inhibitor by lipofectamin to downregulate their overexpression of miR-93.Real time-PCR was taken to measure miR-93 expression after transfection.The cell cycle kinetics and cell growth rate were detected by flowcytometry and MTT assay,the cell proliferative ability was evaluated by soft agar assay,and the invasive ability was detected by transwell assay.ResultsThe highlevel expression of miR-93 was downregulated effectively in glioma cells after transfecting the miR-93 inhibitor.Meanwhile,the cell cycle progress was delayed,S phase cells were reduced,the speed of growth was slowed,cloning formation ability was receded,the number of cells through the matrigel was reduced,and invasive ability was significantly repressed.ConclusionDownregulation of miR-93 expression could inhibit the proliferative ability and invasive ability of glioma cells.
2.Differences in distribution and drug resistance of pathogens for hospital-acquired urinary tract infections between patients in internal medicine wards and surgical wards
Na WANG ; Lipin JIA ; Li WANG ; Xin FENG ; Kun WEI
Chinese Journal of Clinical Infectious Diseases 2015;(5):413-418
Objective To investigate the distribution and drug resistance of pathogens for hospital-acquired urinary tract infections between patients in internal medicine wards and in surgical wards .Methods A total of 586 midstream urine samples were collected from patients in the First Municipal Hospital of Qinhuangdao during January 2012 and December 2014.Vitek 2 Compact system was applied in bacteria identification and drug sensitivity tests .Excel and SPSS 11.5 software were applied for data analysis . Results A total of 661 strains were isolated , in which 404 strains were from internal medicine wards and 257 strains were from surgical wards .Escherichia coli (44.6%vs.33.1%) and Enterococcus (23.0%vs. 16.3%) infections were more common in the internal medicine wards (χ2 =8.620 and 4.309, P<0.05), while the occurrence of Pseudomonas aeruginosa infection (4.0%vs.24.5%) was higher in surgical wards (χ2 =63.056, P <0.01).Escherichia coli and Klebsiella pneumonia strains were highly sensitive to piperacillin/tazobactam, cefptetan, amikacin, imipenem, and meropenem, and the sensitivity rates were from 85% to 100.0%.The sensitivity rates of Escherichia coli to ampicillin/sulbactam, levofloxacin and ciprofloxacin were <30%, and strains from surgical wards had lower sensitivity rates to these drug than those isolated from internal medicine wards (χ2 =4.987, 4.575 and 5.359, P<0.05).The sensitivity rates of Klebsiella pneumonia isolated from internal medicine wards to ceftazidime , gentamicin and aztreonam were 68.8%, 60.6% and 69.7%, which were higher than those isolated from surgical wards (36.0%, 32.0%, and 40.0%), and the differences were of statistical significance (χ2 =6.068,4.661 and 5.115, P<0.05).Pseudomonas aeruginosa strains were highly sensitive to piperacillin/tazobactam and amikacin, and the susceptibilities of strains isolated from surgical wards (98.4%and 96.8%) were higher than those isolated from internal medicine wards (75.0% and 81.3%) (χ2 =11.797 and 5.221, P <0.05). Pseudomonas aeruginosa strains isolated from surgical wards were also highly sensitive to cefepime (92.1%), but the sensitive rate of strains from internal medicine wards was only 37.5%, and the difference was of statistical significance (χ2 =24.696, P<0.01).Enterococcus faecium and Enterococcus faecalis were sensitive to tigecycline , vancomycin and linezolid with the sensitivity rates over 95%.Except quinupristin/dalfopristin and tetracycline , the sensitivities of Enterococcus faecalis to other antibiotics were higher than Enterococcus faecium.Susceptibility of Enterococcus faecium from surgical wards (33.3%) to moxifloxacin was lower than those from internal medicine wards (70.8%), and the difference was of statistical significance (χ2 =4.629, P <0.05).Conclusion There are differences in distribution and antimicrobial susceptibility of pathogens isolated from internal medicine wards and from surgical wards .
3.Nursing care of a child with hand, foot and mouth disease complicating multiple organ failure
Lili GAO ; Min XU ; Lili JIA ; Hong WANG ; Kun XIE
Chinese Journal of Nursing 2009;44(8):707-708
This paper summarizes the nursing care of a child with hand,food and mouth disease complicating multiple organ failure,such as use of ice-blanket and strategies of vessel protection. As a result,the child recovered well and was discharged after rehabilitation.
4.Study on the construction of public health master curricula system based on the professional competencies
Yongjie QIN ; Jia HE ; Kun ZHAO ; Yungui WANG
Chinese Journal of Medical Education Research 2015;(2):119-122
This article analyzed the current problems existing in the public health master cur-ricula system, such as educational ideas being backward, tralning objectives not explicit, curricula teaching unsatisfactory and effects of practical curriculum needing to be improved. Based on the pro-fessional competencies, we discussed the ideas and principles of the new curricula system of master of public health, and proposed making sure of a refined professional competencies, making strict traln-ing standards, confirming tralning objectives, embodying advantages, setting up reasonable curricula, fostering practical abilities, strengthening cooperation and carrying on professional identification.
5.Correlation of inflammatory cytokine interleukin?1β, interleukin?33 and neutrophil?to?lymphocyte ratio with atrial fibrillation
Tingting HE ; Kun XIAO ; Qiang LIU ; Tao WANG ; Ruyi JIA
Clinical Medicine of China 2017;33(9):786-789
Objective To investigate the relationship between interleukin 1β( IL?1β) , interleukin?33 ( IL?33) , neutrophil?to?lymphocyte ratio ( NLR ) and atrial fibrillation. Methods Eighty?two patients with nonvalvular atrial fibrillation treated in the department of cardiology in the Fourth People′s Hospital of Jinan from October 2015 to October 2016 were enrolled in the study,including 43 patients with persistent atrial fibrillation and 39 patients with paroxysmal atrial fibrillation. 50 healthy subjects were selected as the control group. Enzyme linked immunosorbent assay (ELISA) was used to determine the concentration of IL?1βand IL?33,and the left atrial diameter ( LAD) was measured by echocardiography. Results ( 1) The concentrations of IL?1β,NLR and LAD in the paroxysmal atrial fibrillation group were (24. 44±4. 89) ng/L,(2. 51±1. 22) %,(36. 16± 6. 12) mm,the concentrations of IL?1β,NLR and LAD in the persistent atrial fibrillation group were (26. 95±5. 86) ng/L,(5. 7±1. 8) %,(39. 36±4. 78) mm and the values in the control group were (19. 53±4. 51) ng/L,(1. 82 ± 0. 41 ) %, ( 33. 31 ± 2. 89 ) mm, respectively. The differences among the three groups were statistically significant ( F=16. 74,11. 82,14. 85,P<0. 01) . The indexes of paroxysmal atrial fibrillation group and persistent atrial fibrillation group were higher than those of the control group ( P<0. 01 ) . ( 2 ) In the persistent atrial fibrillation group, NLR and LAD were ( 5. 7 ± 1. 8 )% , and ( 39. 36 ± 4. 78 ) mm, higher than those of the paroxysmal atrial fibrillation group ( (2. 51±1. 22)%,(36. 16±6. 12) mm),the differences were statistically significant ( P<0. 01) . However,the level of IL?1βin the persistent atrial fibrillation group was not significantly different from that in the paroxysmal atrial fibrillation group ( (26. 95±5. 86) ng/L vs. (24. 44±4. 89) ng/L,P>0. 05). (3) The concentrations of IL?33 in the paroxysmal atrial fibrillation group,atrial fibrillation group, control group were ( 48. 31 ± 4. 72 ) ng/L, ( 50. 03 ± 2. 18 ) ng/L, ( 56. 87 ± 5. 12 ) ng/L, respectively. The difference among the three groups has no statistical significance ( F=2. 52, P>0. 05 ) . ( 4 ) NLR level was positively correlated with LAD ( r=0. 32,P=0. 002) . There was no significant correlation among IL?1β,IL?33 and LAD ( r=0. 16, P=0. 11, r=0. 02, P=0. 37 ) . Conclusion The levels of IL?1β, NLR and LAD in peripheral blood of patients with atrial fibrillation were significantly higher than those in patients with sinus rhythm,and there was a positive correlation between NLR and LAD.
6.Risk Assessment of Combined Detection of Lipoprotein Associated Phospholipase A2 and Cystatin C for Lupus Nephritis in Patients with Systemic Lupus Erythematosus
Kun WANG ; Xingwang JIA ; Jin DONG ; Guangtao YAN
Journal of Modern Laboratory Medicine 2017;32(4):6-8,11
Objective To investigate the value of combinedevaluation of serum lipoprotein associated phospholipase A2 (LP-PLA2) and cystatin C (CysC) on systemic lupus erythematosus (SLE) patients with lupus erythematosus.Methods A total of 177 patients with SLE were enrolled in the General Hospital of People's Liberation Army from June 2000 to February 2017,87 cases in lupus group (SLE group),90 cases in lupus nephritis group (LN group),60 cases in healthy control group.The concentration of LP-PLA2 and CysC were measured.The ROC curves was established for estimation of the cutoff values of two indexes in SLE patients with LN,and the diagnostic efficacy of different diagnostic criteria was compared.Results The LP-PLA2 and CysC concentration in the LN group were higher than those in the SLE group (Z=-2.512,-5.688,all P<0.05).The cutoff value of LP-PLA2 was 245.5 U/L and the cutoff value of CysC was 1.235 mg/L on the risk assessment of in SLE patients with LN.When using the parallel method for combined LP-PLA2 and CysC to evaluate the risk of LN,the sensitivity and negative predictive value would be significantly improved (x2 =9.461,4.377,all P< 0.05),the efficiency was better.Conclusion Parallel assessment of serum LP-PLA2 and CysC have clinical value on assessment of the risk of LN in SLE patients.
7.Comparison of arsenic trioxide and cisplatin on inhibiting osteosarcoma MG-63 cells
Xue-song, LI ; Jia-kun, LIU ; Wen-bo, WANG
Chinese Journal of Endemiology 2010;29(1):37-41
Objective To explore the inhibiting effects of arsenic trioxide and cisplatin on MG-63 cells. Methods Using MTT assay,flowcytometry,phase contrast microscopy and electron microscopy methods,the therapeutic effect of arsenic trioxide was studied for the osteosarcoma in the cultured MG-63 cells in vitro,and compared these effects with cisplatin. The inhibitory rotes of cell growth and the effect of apoptosis and cell cycle were compared between arsenic trioxide and cisplatin on MG-63 cells. Results The contrast phase microscope revealed the adhesion ability of normal groups was good and cellular morphology showed epithelium cells. But the celhdar morphology showed irregular arrangement in arsenic trioxide groups and cytoplasmic vacuoles in cisplatin group. Electron microscope revealed the globular plasmalemma ecphymas in cell surface of control groups,the enlarged crista mitochondriales and the double-deck membrane structure appeared clearly. But electron microscope revealed globular plasmalemma processes in cell surface of arsenic trioxide groups,thinned crista mitochondriales and clearly seen karyopycnosis and nuclear membrane of apoptotic cells. The globular plasmalemma processes in cell surface of cisplatin groups were separated,nuclear membrane thickened and chromatin were in sandy shape. Both arsenic trioxide and cisplatin inhibited effectively MG-63 cells growth. There was a significant difference in different groups of inhibition ratios to the growth of cells(all P < 0.05). In 2,4,8,16,32,64,128 hours,the inhibition ratios(%) of arsenic trioxide(56.31±0.03,70.00±0.06,79.84±0.03,87.31±0.13,84.70±0.09,90.68±0.06,91.18±0.05) and cisplatin groups(7.55±0.15,15.70±0.17,30.72±0.07,49.80±0.05,45.11± 0.13,61.62±0.08,93.80±0.12) were obviously increased as compared with those in the control group(2.03± 0.07,2.78±0.08,3.11±0.01,5.67±0.04,12.23±0.04,18.65±0.04,24.45±0.04,all P < 0.05). Moreover the inhibition ratio of arsenic trioxide group in 2 to 32 hour was significantly higher than that of cisplatin group and the effect was more faster(all P < 0.05). Both arsenic trioxide and cisplatin could induce apoptosis MG-63 cells. There was a significant difference in different groups of the inhibition ratio to the growth of cells(F = 13.317,P < 0.05). The inhibition ratios(%) of arsenic trioxide on 24,36,48 hour(20.50±3.78,45.76±9.90,25.16±15.41),and cisplatin groups on 24,36,48 hour(12.55±1.51,18.85±3.40,12.37±5.43),were obviously increased as compared with those in the control group at the same time(6.57±1.48,8.03±2.08,6.54±1.30,P< 0.05 or<0.01). Both arsenic trioxide and cisplatin inhibited MG-63 cells cycle. There was a significant difference in different groups of the inhibition ratio to the growth of cells(F = 54.579,43.429,21.795,P < 0.05 or < 0.01). And the total inhibition ratios(%) in G1 cycle of arsenic trioxide(78.26±5.24) and cisplatin groups(80.48±2.81) were obviously increased as compared with those in the control group(57.49±6.65,all P < 0.05 or < 0.01). Conclusions Arsenic trioxide and cisplatin can effectively inhibit the proliferation of MG-63 cell line and induce the apoptosis of MG-63 cell line. And the effects induced by arsenic trioxide group were faster than that of cisplatin groups. Moreover arsenic trioxide can arrest the cell cycle of MG-63 cell line at G1 phase.
8.Jeune syndrome in a case.
Jia-xin ZHUANG ; Li-de RAO ; Kun-ming WANG ; Qiang WANG
Chinese Journal of Pediatrics 2003;41(9):696-696
Abnormalities, Multiple
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diagnosis
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therapy
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Asphyxia
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pathology
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Female
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Humans
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Infant
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Musculoskeletal Abnormalities
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diagnosis
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therapy
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Syndrome
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Thorax
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abnormalities
9.Regulation of miR-19a and miR-19b on tumor suppressor gene-SEPT7
Kun WANG ; Guangxiu WANG ; Peiyu PU ; Anling ZHANG ; Jianwei HAO ; Zhifan JIA
Journal of International Oncology 2011;38(3):233-236
objective To identify SEPT7as one of the target genes of miR-19a and miR-19b.MethodsmiR-19a inhibitor and miR-19b inhibitor mediated by lipofectamine2000,were transfected to SNB19 glioma cells for knocking down miR-19a/19b overexpression.Real time PCR was conducted to detect the expression of miR-19a/miR-19b in transfected cells.The expression of SEPT7was determined by Western blot analysis.RT-PCR was used to detect the mRNA expression of SEPT7; and Luciferase reporter assay was used to identify the direct regulation of miR-19a/19b on SEPT7.ResultsIn SNB19 glioma cells transfected with miR-19a/19b inhibitor,the expression of miR-19a/miR-19b was significantly reduced,whereas the protein expression of SEPT7 was upreguhtted; no significant change of SEPT7 mRNA level was found and luciferase activity became stronger as compared to control cells.ConclusionSEPT7 is the target negatively regulated by miR-19a and miR-19b.
10.The correlation, between expression of stanniocalcin-1 gene and level of hydrogen peroxide in tissue during cutaneous scand repair in mice.
Hong-xu YUAN ; Yong-fang JIA ; Jiang-jiang ZHANG ; Kun-ying WANG ; Wei-guo LI ; Jia-wen LI
Chinese Journal of Applied Physiology 2011;27(3):298-337
Animals
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Burns
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physiopathology
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Female
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Glycoproteins
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genetics
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metabolism
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Hydrogen Peroxide
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metabolism
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Male
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Mice
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RNA, Messenger
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genetics
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metabolism
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Skin
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injuries
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metabolism
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Wound Healing
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physiology