1.DNA Extraction of Cast-off Cells of Fingerprints from 502 Glue Fumigated Con-tact Samples
Xianwen WANG ; Xuefeng LENG ; Shouyu WANG
Journal of Forensic Medicine 2015;(6):454-455,461
Objective To establish a method of fingerprint position, sample transfer and fingerprint DNA extraction in contact samples. Methods Sixty-six cases were visualized by 502 glue fingerprint fumiga-tion. Two methods, ordinary wipe and acetone wipe, were used to transfer cast-off cells of fingerprints fromtesting samples, respectively. DNA was extracted and purified by ultramicro magnetic bead kit. The data was resolved on genetic analysis after amplification. Results In 33 samples, 30 samples got better STR analysis by acetone wipe method. The peak range was 1 000-4 000 R FU and peak shapes were equable. It was hard to get ideal STR typing by ordinary wipe method. Conclusion The samples are visualized by 502 glue fingerprint fumigation and the case-off cells are transferred by acetone wipe method. The method shows better STR analysis result, which might be a better method for forensic sci-ence practice.
2.The effect of nystatin via gastrointestinal tract on invasive fungal infections in patients with mechanical ventilation in ICU
Xianwen HUANG ; Li WANG ; Guangnian MA
Chinese Journal of Postgraduates of Medicine 2014;37(13):11-14
Objective To observe the effect of nystatin via gastrointestinal tract on the incidence of invasive fungal infections (IFI) and the prognosis of patients with mechanical ventilation in ICU.Methods A total of 118 critical ill patients admitted to ICU needing mechanical ventilation were enrolled.The patients were divided into two groups by random digits table method.Patients in study group (57 cases) were administered nystatin 1 000 kU three times a day via the gastric tube;and patients in control group (61cases) were given gastrointestinal prokinetic drug as placebo three times a day.The specimens were collected on admission,the third,the sixth,the ninth day after admission,the strain distribution was observed,and the corrected colonization index (CCI) of all patients were calculated.The incidence of candidemia and 28-day mortality as well as the duration of stay in ICU and hospital was also recorded.Results A total of 860 strains were isolated from 118 patients.Of which Candida albicans accounted for 56.9% (489/860).The most frequently colonized body sites was oropharyngeal site [35.9%(309/860)].CCI on the sixth,the ninth day after admission in study group was lower than that in control group (0.18 ±0.09 vs.0.40 ±0.16 and 0.10 ± 0.02 vs.0.45 ± 0.13),28-day mortality in study group was lower than that in control group [17.5%(10/57) vs.34.4%(21/61)],the duration of stay in ICU in study group was shorter than that in control group [(9.45 ± 3.36) d vs.(11.78 ± 6.21) d],and there were significant differences (P < 0.05).There were no significant differences in the incidence of candidemia and the duration of stay in hospital (P >0.05).Conclusion Nystatin may reduce the colonization of Candida albicans and is associated with shorter ICU day.
3.Design and Implementation of a Mobile Operating Room Information Management System Based on Electronic Medical Record.
Baozhen LIU ; Zhiguo LIU ; Xianwen WANG
Journal of Biomedical Engineering 2015;32(3):581-587
A mobile operating room information management system with electronic medical record (EMR) is designed to improve work efficiency and to enhance the patient information sharing. In the operating room, this system acquires the information from various medical devices through the Client/Server (C/S) pattern, and automatically generates XML-based EMR. Outside the operating room, this system provides information access service by using the Browser/Server (B/S) pattern. Software test shows that this system can correctly collect medical information from equipment and clearly display the real-time waveform. By achieving surgery records with higher quality and sharing the information among mobile medical units, this system can effectively reduce doctors' workload and promote the information construction of the field hospital.
Electronic Health Records
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Information Management
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methods
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Mobile Health Units
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Operating Rooms
4.The role of D-dimer in detection and diagnosis of mycoplasma pneumonia
Xianwen YUAN ; Qingfeng WANG ; Yihui DONG
Chinese Journal of Primary Medicine and Pharmacy 2017;24(16):2449-2452
Objective To investigate the role of D-dimer in the diagnosis and evaluation of mycoplasma pneumonia.Methods The positive rate and concentration of D-dimer in mycoplasma pneumonia,bacterial pneumonia,viral pneumonia and healthy controls were detected and compared.The positive rate and concentration of D-dimer in patients with systemic inflammatory response syndrome(SIRS)and without SIRS were observed.Changes of D-dimer concentration in patients with mycoplasma pneumonia before and 2 weeks after treatment were observed.Results Compared with bacterial pneumonia group(16.7%),the viral pneumonia group(20.0%)and healthy control group(0.0%),the positive rate of D-dimer in mycoplasma pneumonia group(41.6%)was significantly higher(x2=5.625,4.158,17.308,all P<0.05).The positive rate of mycoplasma pneumonia group with SIRS(64.0%)was significantly higher than that in other groups(x2=17.308,P<0.05).The D-dimer levels of the mycoplasma pneumonia group [(324.4±125.3)μg/L],bacterial pneumonia group[(282.3±95.4)μg/L] and viral pneumonia group[(293.1±92.3)μg/L]were significantly higher than that in the healthy controls[(72.9±22.4)μg/L](t=10.878,11.704,12.698,all P<0.05).The concentration of D-dimer[(381.4±129.4)μg/L] in the mycoplasma pneumonia group with SIRS was significantly higher than that in the other groups(t=2.668,P<0.05).Compared with before treatment,the concentration of D-dimer after treatment in the two groups was significantly lower[(129.3±65.3)μg/L,(89.7±28.6)μg/L](t=2.582,P<0.05).Conclusion The level of D-dimer in children with mycoplasma pneumonia was significantly increased,and the severity of the disease could be reflected.
5.Application of dural bilaminar saturation in frontal-temporal skull defect repairs after standard decompres-sive craniectomy
Yongsheng WANG ; Zhiqiang WANG ; Xianwen ZHOU ; Qiang JIA ; Zongbao WANG
Chinese Journal of Primary Medicine and Pharmacy 2015;(17):2604-2606
Objective To approach the operative effect of dural bilaminar saturation in frontal -temporal skull defect repairs after standard decompressive craniectomy.Methods Fifty-two patients with titanium cranioplas-ty in frontal-temporal skull defect were retrospectively analyzed;27 of them adopted dural bilaminar saturation in the first standard decompressive craniectomy(test group);25 of them adopted dural monostratal saturation in the first operation (control group).The operation time,blood loss,postoperative complications in the two groups were compared. The mean operation time:the test group was (65.00 ±8.15)min and the control group was (83.00 ± 10.25)min,there was statistically significant differences between the two groups(t =7.059,P<0.05);average amount of bleeding:the test group was (55 ±8)mL and the control group was (79 ±12)mL,there was statistically significant differences between the two groups (t=8.541,P<0.05);postoperative complications:adverse reactions were noted in 4 patients of test group (14.8%),5 cases of control group (20%),there was no significant differences between the two groups (χ2 =0.016,P>0.05).Conclusion Skull repairs in second standard decompressive crani-ectomy by dural bilaminar saturation,can be shortened the operation time and lessened amount of bleeding.
6.Abnormal expression of connexin 36 plays a role in the pathogenesis of levodopa induced dyskinesia in rat model of Parkinson' s disease
Mian GAO ; Lei HUANG ; Hailei WANG ; Liecheng WANG ; Xianwen CHEN
Chinese Journal of Neurology 2014;(6):375-381
Objective To explore whether gap junction disturbances are involved in the pathogenesis of levodopa-induced dyskinesia ( LID ). Methods The hemi-parkinsonian ( PD ) rat was treated intraperitoneally with L-dopa methylester (20 mg/kg) and benserazid (10 mg/kg) for 21 days and abnormal involuntary movement was evaluated to establish LID rat model. The experimental animals were divided into three groups: LID group, PD group and normal control group, respectively. The behavior responses of intraperitoneal injection of different doses of carbenoxolon and intracerebroventricular injection of quinine were observed to estimate the effects of gap junctional blockade on the abnormal involuntary movement ( AIM ) in the rat model of LID. Double immunofluorescence labeling was used to analyze the expression of connexin 36 ( Cx36 ) in enkephalin positive medium spiny neurons and parvalbumin ( PV ) positive interneurons in the striatum. Western blottings was used to observe the expression of Cx36 in the striatum and moter cortex. Results Behavioral characteristics indicated that high dose of carbenoxolone ( >60 mg/kg) intraperitoneal injection and intracerebroventricular injection of quinine ( 0.5, 1.0, 2.0 μmol/L, > 2.5 μmol/L ) could decrease the AIM score of LID rats. Western blotting indicated that expression of Cx36 in lesioned striatum and motor cortex of LID rat model was 219.56% ±18.12% and 226.03% ±16.33%, respectively, which induced a significant upregulation in comparison with the normal control group (104.05% ±3.82%, t=15.389, P<0.01;105.27% ±2.82%,t=8.074, P<0.01) and untreated PD group (119.31% ±8.92%, t=13.356, P<0.01; 138.20% ±17.88%, t=5.872, P<0.01). Double immunofluorescence labeling staining revealed that Cx36 expression was increased in Enk-positive striatum neurons in LID model ( 57.59% ±5.36%) compared with that in normal control group (32.67% ±4.22%) and PD group (37.24% ±0.86%, F=78.060, P<0.01). The expression of Cx36 in PV-positive interneurons was also elevated in LID group (68.49% ±11.60%) in comparison with normal control group ( 40.43% ± 2.30%) and PD group ( 31.92% ± 5.68%, F = 39.567, P < 0.01 ).Conclusions The Cx36 expression is generally increased in lesioned striatum and motor cortex of LID rat model. In the striatum, the up-regulation of Cx36 is specifically observed in Enk-positive striatum neurons and in PV-positive interneurons. The dyskinesia behavior of LID rats can be significantly reduced by treatment with gap junction blockade. All these results suggest that gap junction dysfunction may play an important role in the pathogenesis of LID.
7.Insulin induces PKC-dependent proliferation of mesenteric vascular smooth muscle cells from hypertensive patients
Xukai WANG ; Yan WANG ; Chenming YANG ; Ying WAN ; Xianwen JI
Journal of Geriatric Cardiology 2006;3(2):100-106
Background and objectives Proliferation of human vascular smooth muscle cells (VSMCs) induced by hyperinsulinemia is a very common clinical pathology. Extensive research has focused on PKC (Protein kinase C)-MAPK (mitogen-activated protein kinase)intracellular signal transduction and the phenotypic modulation accompanied by reorganization of intracellular F-actins in VSMCs.Methods DNA synthesis, signaling of ERK1/2 MAPKs, and changes in α-smooth muscle (SM) actin and F-actin were studied in hypertensive and normotensive human arterial VSMCs exposed to insulin and PMA with and without the PKC inhibitor, GF109203X.Results Differences among cell types in MAPK signaling, α-SM actin, and F-actin isoforms in VSMCs harvested from the arteries of patients with essential hypertension (EH) and normotension (NT) were identified in response to insulin treatment. Proliferation and activation of MAPK were more pronounced in EH VSMCs than in NEH VSMCs. Insulin exposure decreased expression of α-SM actin and was accompanied by rearrangement of intracellular F-actins in VSMCs, especially in the EH group. These effects were reversed by treatment with the PKC inhibitor. Conclusions Human mesenteric VSMCs of EH and NT patients differed in proliferation, MAPK signaling, and degree of changes in α-SM actin and F-actin isoforms immediately following insulin exposure in vitro.
8.Analysis of the related risk factors for progress of the elderly frontal lobe contusions
Shicong ZHOU ; Qiang JIA ; Xianwen ZHOU ; Zongbao WANG ; Zengjun PAN
Chinese Journal of Primary Medicine and Pharmacy 2016;23(10):1530-1533
Objective To investigate the related risk factors for progress of the elderly frontal lobe contusions. Methods The clinical data of 118 cases of elderly frontal lobe contusions from August 2012 to August 2014 were retrospectivelyanalyzed.118 patients were given conventional therapy after admission,received dynamic review of brain CT.The progress of patients were performed surgery of frontal coronary approach,removed contusion brain tissue by bone flap of single frontal or double the frontal lobe.No progress of patients were given conventional conservative treat-ment.Selected seven indicators combining with hypertension,oral aspirin,diabetes mellitus,contrecoup injury,Cushing response,sylvian cistern exist or not and subdural hematoma did a statistical analysis.Results This group of 118 patients,68 cases (57.6%)had progress and 50 cases (42.4%)had no progress.Statistical analysis showed that oral aspirin (P =0.006 ),sylvian cistern exist or not (P =0.001 ),Cushing response (P =0.025 )were independent risk factors of progress of the elderly frontal lobe contusions.Conclusion For elderly patients with fron-tal lobe contusion,oral aspirin,sylvian cistern exist or not,whether there is any Cushing response were risk factors for deterioration of disease progression.If one or more risk factors appeared,clinical need to prevent disease progression.
9.Effects of volume-guaranteed pressure-regulated ventilation on the pulmonary function during percutaneous nephrolithotomy
Jiayou WANG ; Yun LI ; Xianwen HU ; Ye ZHANG
The Journal of Clinical Anesthesiology 2016;32(4):344-346
Objective To observe the effects of pressure control ventilation with volume guar-antee (PCV-VG)on the pulmonary function during percutaneous nephrolithotomy procedures in pa-tients with general anesthesia.Methods Forty patients scheduled for percutaneous nephrolithotomy were selected and randomly allocated into PCV-VG group (n =20)and volume controlled ventilation (VCV)group (n =20).For two modes of ventilation,the goal tidal volume was 6-8 ml/kg,and the respiratory rate was contralled to 12-20 bpm.PA-a O 2 ,OI,RI,Ppk,Pmean,Cst,Hct,Lac were re-corded at intubation (T0 ),1 5 min (T1 ),30 min (T2 ),60 min (T3 ),and 120 min (L4 )after intuba-tion.Results PCV-VG resulted in significantly lower PA-a O 2 ,RI,Ppk,Pmean compared with VC ventilation (P < 0.05 or P < 0.01 ),and significantly higher OI,Cst versus VC ventilation (P <0.05 or P < 0.01).Conclusion In general anesthesia patients undergoing percutaneous nephrolithoto-my,PCV-VG is superior to VCV in terms of lower airway pressure and more stable hemodynamics, thus protects pulmonary function.
10.Effects of dopaminergic medication on decision-making under ambiguity in patients with early Par-kinson's disease
Juan FANG ; Huijuan MA ; Panpan HU ; Xianwen CHEN ; Kai WANG
Chinese Journal of Behavioral Medicine and Brain Science 2016;25(12):1091-1095
Objective To investigate the effects of dopaminergic medication on decision-making un-der ambiguity in patients with early Parkinson's disease( PD) . Methods Using Iowa Gambling Task ( IGT) for 24 early non-medication idiopathic PD patients( Hoehn and Yahr Scale≤Ⅱlevel) ,24 early idiopathic PD patients with regular dopaminergic medication and also for 24 healthy controls( HC) whose age,gender,and education match to PD patients to test their ability of decision-making under ambiguity. Results The results showed non-medication PD group showed impairments on digtal span and verbal fluency and decision-making task. There was significant difference in IGT task scores among the three groups(F=6.024, P=0.004) . The total net scores of advantageous choices in IGT were significantly lower in non-medication PD group( (-4.50 ±22.19) scores) than medication PD group((8.83±23.24)scores) and healthy group((15.92±15.77) scores) . The difference of net scores in block1 to block5 between non-medication PD group and medication PD group was gradually increased,and the difference of net scores in block5 was significant(P<0.05) . There was no significant difference in total net scores and net scores in block1 to block5 between medication PD group and healthy group(P>0.05) . As the game processing,medication PD group gradually shifted their se-lections toward the advantageous choices. But non-medication group did not exhibit this shift pattern and the performance was much poorer. Meanwhile, the study also indicated the total net scores of advantageous choices for non-medication PD group was positive correlation to the MoCA scores ( r=0.614, P=0.001). Conclusion The present study has shown that non-medication PD group has impairment in decision-making under ambiguity risk condition and prefer to choose risky options. when exogenous complement dopaminergic medication,the risk decision-making ability of medication PD group has been improved.