1.Experimental study of VAP-chitosans-honey suspension on the healing of decubitus ulcer in swines
Xiaoyan JIA ; Laijin LU ; Zhaopeng XUAN
Orthopedic Journal of China 2006;0(06):-
[Objective]To study the influence of VAP(velvet antler polypeptide)-chitosan-honey suspension on decubitus ulcer.[Method]Swines'pressure ulcers were used as decubitus ulcer model.Honey was used as solvent carrier.VAP and chitosan were put into the honey in different proportion.The suspension was applied to the ulcer once a day for seven days.The dressings were changed once every other day.The healing state of the ulcer was observed and the area of the ulcer was calculated.The changes of the ulcer histopathology were observed.[Result]In the group of the suspension proportion of the VAP to the chitosan was 4:1,the wounds had little effusion and the granulation tissues grew fast with the scars falling off early and Absolutely.Pathology results indicated that in the group of the suspension proportion of the VAP to chitosan was 4:1,none necrosis was found,the epithelization was apparent,and the inflammatory cells were fewer.There was no edema,but more newly born blood vessles.[Conclusion]The VAP-chitosan-honey suspension could apparently promote the healing of decubitus ulcer,but the possible mechanism needs to be further studied.
2.Mitochondrial dysfunction in the process of cisplatin-induced acute kidney injury in mice
Jingjing PAN ; Xiaoyan XUAN ; Aihua ZHANG ; Guixia DING
Chinese Journal of Nephrology 2013;29(12):914-919
Objective To assess the characteristics of different doses of cisplatin-induced acute kidney injury,further to understand mitochondrial dysfunction and its role in acute kidney injury (AKI).Methods Male C57BL/6J mice were first randomly divided into two groups:control group (n =6) and AKI group (n =12).Then,AKI group was subsequently divided into other two groups according to different dose of cisplatin (10 mg/kg or 20 mg/kg).AKI group received intraperitoneal injection of cisplatin.All mice were sacrificed after 72 h of injection.Renal biochemical function,renal pathological changes,renal injury markers,kidney mitochondrial function and structural changes were observed.Results (1) After 72 hours of injection,the AKI group performed significant kidney injury changes compared to control group,thereinto 20 mg/kg group was more serious than 10 mg/kg group.With the cisplatin dose increasing,renal function markers such as serum creatinine,urine protein gradually increased.(2)Kidney biopsy showed tubular structural damage,the formation of protein casts,kidney injury molecule-1 (KIM-1) gradually increased(P < 0.05).(3)Electron microscopy found tubular mitochondrial structural damage,mtDNA copy number decreased,the level of peroxisome proliferatoractivated receptor-gamma coactivator-1alpha (PGC-1α),ATP synthase β decreased(P < 0.05),and Western blotting manifested cytochrome C was released from mitochondria to the cytoplasm.These data all exhibited significant difference between different groups(P < 0.05).Conclusions Cisplatin induces acute kidney injury in dose-dependent manner.Mitochondrial dysfunction participates in kidney injury,and is also related to the kidney pathological damage.
3.Expression and significance of VEGF in endometriosis
Xuan QI ; Xiaoyan XIN ; Jiqing CHANG ; Detang WANG ; Huiling GUO ;
Journal of Medical Postgraduates 2003;0(03):-
Objectvies:To investigate the role of vascular endothelial growth factor(VEGF) in the pathogenesis of endometriosis(EMs). Methods:A total of 70 specimens of endometriosis and 30 specimens of the normal controls were evaluated by immunohistologically techique with polyclonal antibody against VEGF. Results:The expression levels of VEGF in endometriotic tissues was higher than that in the normal endometrium( P
4.Observation of the effect of alprostadil combined with valsartan in the treatment of chronic glomerulonephritis proteinuria
Xiaoyan XUAN ; Aicheng YANG ; Zian LIANG ; Jiefeng LI ; Baoan WANG
Chinese Journal of Primary Medicine and Pharmacy 2014;21(11):1676-1677
Objective To observe the clinical efficacy of alprostadil combined with valsartan in treatment of chronic glomerulonephritis proteinuria.Methods 78 patients with chronic glomerulonephritis proteinuria were randomly divided into two groups,and each group had 39 cases.The control group was given conventional treatment,while the observation group was given alprostadil combined with valsartan on the basis of the control group.The clinical outcomes were compared between the two groups.Results The total effective rate of the observation group was 92.31%,which was significantly higher than 74.36% of the control group (x2 =9.825,P < 0.05).After treatment,the 24h Upro,BUN and SCr of the observation group were (1.00 ± 0.39) g/24h,(7.11 ± 0.15) mmol/L and (80.86 ± 0.65) μmol/L,which were significantly lower than those of the control group [(1.30 ± 0.48) g/24h、(9.18 ± 2.21) mmol/L and (98.71 ± 4.34) μmol/L],the differences were statistically significant (t =9.32,7.83,7.12,all P < 0.05).Conclusion Alprostadil combined with valsartan in the treatment of chronic glomerulonephritis proteinuria has significant effect,and it can significantly alleviate clinical symptoms,improve renal function,which should be widely applied in clinical.
5.A novel hemiacetal from the marine-derived fungus Penicillium citrinum.
Mini NI ; Xiaoyan ZHOU ; Xuan HE ; Qianqun GU
Acta Pharmaceutica Sinica 2011;46(9):1098-100
A novel hemiacetal, citrinacetal (1) was isolated from a marine-derived fungus Penicillium citrinum by column chromatography on silica gel, Sephadex LH-20 and semi-preparative HPLC. Its structure and stereochemistry was established on the basis of HR-ESI-MS, 1D and 2D NMR spectroscopic methods. The NMR spectrum showed this compound exists in solution as a mixture of two stereoisomers. The cytotoxic effect of compound 1 was evaluated in A-549, HL-60, HeLa, and K562 cancer cell lines. However, compound 1 only displayed weak cytotoxic activity on HL-60 cell, with IC50 value 77.4 micromol x L(-1).
6.Development and implementation of comprehensive experimental training of clinical nursing
Na LI ; Xuan ZHOU ; Xiaoyan LIU ; Shukun JIANG ; Juguo CHEN
Chinese Journal of Medical Education Research 2017;16(8):815-818
In order to train higher vocational nursing talents with strong theoretical knowledge,practical ability and humanistic quality,Kunming health Career Academy specially has developed clinical nursing comprehensive training course.Focusing on the training of students' occupation ability and the employment orientation,this course introduces multi-station concept,design and arrange the site teaching content,uses rich teaching methods and practices scientific and strict assessment,and especially it puts forward and implements intensive training t of site teaching before the practice of nursing students.Finally,the graduation test scores between the students who studied the course and the previous students who didn't are compared and analyzed.The result shows that the teaching of this course has obviously improved the theory,skill level and humanistic quality of nursing students in our hospital.
7.Reliability and validity of the application of two consciousness assessment scales in neurosurgical patients
Juan PENG ; Hongzhen ZHOU ; Lei SHI ; Xiaoyan WANG ; Ying ZHOU ; Xuan LI
Chinese Journal of Practical Nursing 2015;(35):2672-2675
Objective To compared the reliability and validity of the application of two consciousness assessment scales in neurosurgical patients by Full Outline of Unresponsiveness Score Coma Scale (FOUR) and the Glasgow Coma Scale (GCS), and provide the effective evaluation for the consciousness of the nerve severe patients. Methods A total of 100 neurological intensive patients from Nanfang Hospital, Southern Medical University were enrolled and the consciousness was evaluated by FOUR and GCS. The reliability and validity of these scales were evaluated and compared by the following method such as Cronbach αcoefficient, the inter-rater agreement,content validity index (CVI) and the receiver operating characteristic curve (ROC) which used to predict the discrimination of prognosis.The important experimental indexes of blood of the degree of brain injury were collected in the same period:S-100 B protein and neuron specific enolization enzymes (NSE). Results The Cronbach α coefficient was 0.811 (FOUR) and 0.923(GCS). The overall rater agreement was excellent with an intraclass correlation coefficients of 0.972 (FOUR) and 0.979(GCS). CVI was 0.965 (FOUR) and 0.973 (GCS). Both scales had better distinguish and predictive abilities for the poor prognosis.The area under the curve for mortality was 0.938 for the FOUR and 0.932 for the GCS. The best cut-off values for predicting poor prognosis were FOUR of 12 and GCS of 11. For the FOUR, the correlation coefficient was-0.324(P<0.05) with the level of NSE,-0.427(P<0.01) with the level of S-100B protein. For the GCS,the correlation coefficient was-0.316 (P<0.05) with the level of NSE,-0.395 (P<0.01) with the level of S-100B protein. Conclusions Both FOUR and GCS are a reliable scale for evaluating the level of consciousness in neurosurgical patients. The GCS is familiar with the medical staff while the FOUR is more adapted to assess the patients with tracheotomy or intubated and which more easy to remember and learn by medical staff of neurosurgery department.
8.Attention impairment in children with primary nocturnal enuresis:an event-related potentials study
Li DING ; Jie ZHU ; Huijuan SHEN ; Xiaoyan GU ; Kaihua JIANG ; Xuefeng LIN ; Xuan DONG
Chinese Journal of Behavioral Medicine and Brain Science 2017;26(5):435-439
ObjectiveTo explore the neural mechanism of attention impairment in children with primary nocturnal enuresis.MethodsERPs elicited by performing the continuous operation test(CPT) were assessed in 20 children with primary nocturnal enuresis and 20 normal children.The Go/Nogo measurements of enuretic group at central scalp(Cz) were compared with the normal children and analyzed.Results1.Behavior results: there was no significant difference in the reaction time,the correct number and the false number between primary nocturnal enuresis and control group(P>0.05).2.ERP:(1)Go stimulate:the latency of Go-N2 and P3 of the children with primary nocturnal enuresis were longer than the normal control group(Go-N2:(326.80±46.40)ms vs (295.90±38.27)ms,P3:(438.80±62.60)ms vs (402.60±39.74)ms),and the difference had statistic significance(P<0.05).(2)Nogo stimulate:①Amplitude: the amplitude of Nogo-N2 of the children with primary nocturnal enuresis were lower than that of the normal control group((-10.55±3.30)μV vs (-14.12±5.99)μV),and the difference had statistic significance(P<0.05).There was no significant difference in the amplitude of Nogo-P2 and Nogo-P3(P>0.05).②Latency: the latency of Nogo-P2 of the children with primary nocturnal enuresis was longer than that of the normal control group((214.10±27.85)ms vs (198.30±19.16)ms),and the difference had statistic significance(P<0.05).There was no significant difference in the latency of Nogo-N2 and Nogo-P3(P>0.05).ConclusionAttention impairment in children with primary nocturnal enuresis might be caused by the information processing speed and conflict monitoring function obstacle,but it is not because the reactive inhibition dysfunction,thus result in the lack of arousal function and bedwetting.
9.Isolation and molecular analysis of blaNDM-1-positive Morganella morganii
Xuan WANG ; Xiaoyan WU ; Jiaping LI ; Guorong SONG ; Bingfeng QIU ; Danxia GU ; Rong ZHANG
Chinese Journal of Laboratory Medicine 2015;38(12):857-860
Objective To investigate the molecular background of the New Delhi-metallo-1 (NDM-1)-producing Morganella morganii.Methods Two carbapenem-resistant M.morganii named 1 and 2 were isolated in the Second Hospital of Jiaxing,Zhejiang on October 4th and 29th,respectively.Antimicrobial susceptibility was determined by agar dilution method.Pulsed-field gel electrophoresis (PFGE) was performed to analyse the homololgy of isolates.Amplification with specific primers,DNA sequencing,conjugation experiments and genetic environment analysis were conducted to investigate the molecular mechanisms of resistance.Results The two M.morganii isolates were resistant to carbapenem and fluoroquinolones,while susceptible to aztreonam.PFGE analysis indicated that the two isolates were distinguishable.Amplification and DNA sequencing confirmed the coexistence of blaNDM-1,blasHv-12,qnrS1 and aac(6')-Ib-cr in both isolates.Transconjugants were detected with blaNDM.1 and qnrS1 simultaneously.Genetic environment analysis demonstrated that the blaNDM-1-bleMBL-trpF-dsbC-cutA1 structure was in consistence with those from known blaNDM-1-carrying Klebsiella pneumoniae.Conclusion The blaNDM-1 in M.morganii isolates possiblely obtained from K.pneumoniae through translatable plasmids.
10.Relationship Between Baseline Levels of High Sensitivity C-reactive Protein With the Morbidity of Pulmonary Embolism
Yunqiu LIU ; Xiaoyan YANG ; Liye WANG ; Xuan LAN ; Xiaoyu LIU ; Hailiang XIONG ; Shouling WU
Chinese Circulation Journal 2015;(9):854-858
Objective: To evaluate the predictive value for baseline levels of high sensitivity C-reactive protein (hs-CRP) in morbidity of pulmonary embolism (PE). Methods: We conducted a prospective cohort study of 101510 subjects in Kailuan Group by regular physical examination from 2006-07 to 2007-10, and 94314 subjects were enrolled by relevant criteria including 75252 male and 19062 female. The baseline levels of hs-CRP were divided by quartile levels as①hs-CRP<0.3l mg/L,n=25592,②hs-CRP (0.3l-0.77) mg/L,n=21746,③hs-CRP (0.78-1.9) mg/L,n=23504 and④hs-CRP≥2.0 mg/L,n=23472. The subjects were followed-up for (81.5 ± 4.76) months, the morbidity of PE was collected and the predictive value of baseline levels of hs-CRP for PE occurrence was evaluate by multivariable Cox proportional hazard regression analysis. Results: The total PE morbidity was 0.15%, the female subjects were similar with male subjects,P>0.05. As the increased baseline level of hs-CRP, PE occurrence was elevated accordingly,P<0.05. Multivariable Cox proportional hazard regression analysis presented that with adjusted age, gender, smoking, body mass index (BMI), systolic blood pressure (SBP), diastolic blood pressure (DBP), triglyceride (TG), fasting blood glucose (FBG), neutrophile granulocyte (NEU), white blood cells (WBC) and heart rate (HR), the subjects in the highest quartile group had 2.84 times higher risk for PE occurrence than the subjects in the lowest quartile group. With the elevated baseline level of hs-CRP, the subjects’ mean age, BMI, SBP, FBG and NEU levels increased accordingly, allP<0.05; while DBP, TG and HR were similar between quartile③ and quartile④ groups, allP>0.05. WBC counts had the increasing trend in quartile①,②,③ groups and had the decreasing trend in quartile④ group, while it was similar between quartile③ and quartile④ groups,P>0.05. Conclusion: Baseline hs-CRP level may predict the risk of PE morbidity; the increased hs-CRP level could be used as one of the predictors for PE occurrence.