1.Research of micro sleeping monitor and evaluation system.
Caibing ZHU ; Yantao SONG ; Lanlan WEI ; Jilun YE ; Xu ZHANG
Chinese Journal of Medical Instrumentation 2013;37(6):414-431
By studying of the pathology of human sleep and respiration disorder diseases, the method of sleep and respiration measurement, the evaluation index, a kind of micro sleep monitor and evaluation system was designed. Based on the methods of spectrum absorption and force changing, using high performance pulse oxygen saturation monitoring technology and respiration monitoring technology, developing a low-cost, high usability sleep monitor system which is convenience for family using. It can measure the signal of human oxygen saturation and chest respiration, can improve the quality of signal and reliable from arithmetic and sensor installing.
Humans
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Monitoring, Physiologic
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instrumentation
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methods
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Oximetry
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instrumentation
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methods
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Respiration
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Sleep
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physiology
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Software Design
2.Isolation of Brucella melitensis from the blood of infective endocarditis infected patient
Hai CHEN ; Chunhui LI ; Lanlan ZHU ; Xiaomin YANG ; Haiwen LI
Chinese Journal of Zoonoses 2010;(3):289-291
The aim of the present study was to explore the prevalence characteristics of brucellosis in Hainan by investigating the biological characteristics and clinical type of pathogenic bacteria isolated from the blood of a patient infected by infective endocarditis.Bacteriological experiments were conducted according to the standard identification methods of Brucella including morphology,cultural characters,biochemistry characters,serological test and phage test,etc.At the same time,systematic analysis on the information about epidemiology,clinical manifestation and laboratory data of the patient was carried on.The Brucella melitensis was identified as Brucella melitensis biotype 2 and was significantly different from the Brucella melitensis biotypes 1 and 3 isolated in China reported in recent years.The urease test result of Brucella melitensis was variable and there is no strong positive result reported except the isolates in Hainan.As Brucellosis cause by Brucella melitensis biotype 2 was firstly reported in Hainan Province,great importance should be attached to its point-like prevalence.
3.Application of Procalcitonin Test in Lower Respiratory Tract Infection
Yuling SHI ; Yang LIAO ; Zhu ZHEN ; Lanlan ZENG
Chinese Journal of Nosocomiology 1994;0(01):-
OBJECTIVE To evaluate the diagnosis value of the procalcitonin(PCT) test in the lower respiratory tract infection(LRTI),and to provide the application of PCT in the bacterial infectious disease.METHODS Procalcitonin concentrations were measured using the quantitative immunofluorescence test in 93 patients and the results were compared with the levels of C-reactive protein(CRP) and white blood cell count(WBC).Samples were collected and divided into 2 groups,one including 63 cases(bacterial infected group) the other including 30 cases(non-bacterial infected group) corresponding to their clinical diagnosis(temperature,heart rate,bacteremia culture,CRP,WBC count).RESULTS The levels of PCT in bacterial infected group were significantly higher than in non-bacterial infected group(P
4.Evaluation of the Effect of Discharge Planning Model in Patients with Intracoronary Stent Implantation
Lanlan LOU ; Xiuni GAN ; Jifang ZHU ; Li XIN
Journal of China Medical University 2015;(5):415-419
Objective To evaluate the effect of discharge planning service mode in patients with intracoronary stent implantation. Methods Total?ly 106 patients with intracoronary stent implantation were divided into intervention group and control group,the intervention group received discharge planning services. The control group received routine nursing and follow?up of Department of Cardiology. The intervention lasted 6 months. Compari?son of two groups of patients in hospitalization days,cost of hospitalization and cardiovascular events and the rate of readmission and Compliance be?havior and clinical indicators and quality of life. Results The incidence rate of cardiovascular events and readmission rate in discharge planning group is lower than the routine nursing group(P<0.05);Discharge planning group of smoking cessation rates,weekly rehabilitation exercise times and coronary heart disease in two level prevention drug use rate is superior to that of routine group(P<0.05). Discharge planning group,left ventric?ular ejection fraction,success rate of blood lipids and the quality of life is better than the routine group(P<0.05). Conclusion Discharge plan?ning intervention can reduce the incidence of cardiovascular events and readmission rate,improve ventricular function and the compliance behavior and the quality of life in patients with coronary stent implantation.
5.Study on Marzulene combined with Omeprazole for treating peptic ulcer disease and the safety of Marzulene in children
Feng CHEN ; Wenli LIU ; Lanlan GENG ; Xiaoli XIE ; Yanfang GUO ; Chaomin ZHU
Chinese Journal of Applied Clinical Pediatrics 2014;29(7):493-497
Objective To assess the effect of Marzulene as an adjuvant therapy for peptic ulcer disease in children and the safety of Marzulene.Methods From Dec.2011 to Feb.2013,138 cases of peptic ulcer disease in children from Chongqing,Guiyang,Guangzhou,Chengdu and Xinjiang were randomly divided into trial group (n =75) and control group (n =63).The treatment protocls of the trial group was Marzulene combined with Omeprazole,and the control group gave Omeprazole only,all the cases with Helicobacter pylori (Hp) infection were treated by antibiotics,then clinical manifestations,gastroscopy and laboratory examinations were followed up after 8 weeks.Results The remission rates of clinical manifestations in the trial group were abdominal pain 91.8% (56/61 cases),vomiting 90.2%(37/41 cases),melena 92.9% (26/28 cases),nausea 93.1% (27/29 cases),hematemesis 89.5% (17/19 cases),abdominal discomfort 100.0% (19/19 cases),abdominal distension 100.0% (11/11 cases),sour regurgitation 100.0% (9/9 cases),ozostomia 90.0% (9/10 cases),eructaion 88.9 % (8/9 cases),bloody stools 100.0% (4/4 cases),poor appetite 50.0% (1/2 case),and abdominal tenderness 89.3 % (50/56 cases) ;the remission rates of clinical manifestations in the control group were abdominal pain 90.4% (47/52 cases),vomiting 89.7% (26/29 cases),melena 96.4%(27/28 cases),nausea 87.5 % (21/24 cases),hematemesis 92.9 % (13/14 cases),abdominal discomfort 58.3 % (7/12 cases),abdominal distension 85.7% (12/14 cases),sour regurgitation 100.0% (13/13 cases),ozostomia 80.0%(8/10 cases),eructaion 100.0% (8/8 cases),bloody stools 100.0% (4/4 cases),poor appetite 33.3% (1/3 case),and abdominal tenderness 90.0% (45/50 cases).Abdominal discomfort,abdominal distension,ozostomia,eructaion and poor appetite had significant statistical disparity between control group and trial group (P < 0.05).One hundred and thirty-one cases reviewed gastroscopy,in the control group their ulcer clearance rate was 65.1% (41/63 cases) ;the remission rates of gastroscopic manifestations were edema 54.8% (34/62 cases),hyperemia 51.7% (31/60 cases),areola 76.0% (19/25 cases),atrophy 0% (0/1 case),and hemorrhage 85.7% (12/14 cases),the Hp clearance rate in the control group was 67.9% (19/28 cases).In the trial group the ulcer clearance rate was 66.2% (45/68 cases),and the remission rates of gastroscopic manifestation were edema 63.0% (46/73 cases),hyperemia 64.7 % (44/68 cases),areola 86.1% (31/36 cases),atrophy 50.0% (1/2 case),and hemorrhage 100.0% (19/19 cases) ;the Hp clearance rate in the trial group was 72.7% (24/33 cases),and the remission rates of atrophy and hemorrhage had significant disparity between the control group and the trial group.The clinical effective rates of the trial and the control groups were 98.7% (74/75 cases) and 98.4% (62/63 cases),and the gastoscopic detection rates were 98.5% (67/68 cases) and 96.8% (61/63 cases).There was no adverse reaction in the trial group due to using marzulene for 8 weeks and 4 weeks' follow-up after its withdrawal.Conclusions Marzulene is helpful for improving the clinical and gastroscopic manifestations of peptic ulcer disease in children,and is effective and safe as an adjuvant therapy in children.
6.Effects of aldehyde-free fixation solution and aldehyde fixation solution on the nucleus DNA and cytoplasm staining
Rongxiang HUANG ; Lanlan YU ; Chenyan ZHU ; Liang MA ; Kun NIE ; Wenbo HE
Chongqing Medicine 2017;46(23):3241-3244
Objective To investigate the effect of aldehyde-free fixation solution and aldehyde fixation solution on DNA and cytoplasm of nucleus.Methods The DNA quantification (IOD),discrete coefficient (CV),DNA index (DI) and nucleus area (area) were measured by DNA quantification system (ICM) in 8 different fixation solution;combined with cytological staining,the effects of different fixative solution on nuclear DNA and cytoplasmic staining were analyzed.Results Aldehyde fixation solution was better than aldehyde free fixation solution,the formaldehyde in fixtion solution has important influence on Feulgen-eosin staining.Conclusion Aldehyde fixation solution combined with cytological staining can obtained good dyeing effect,which provides the basis for the subsequent multi-technique joint diagnosis.
7.Differences of risk factors and pathologies betw een the single and multiple lacunar infarctions
Lanlan CHEN ; Jun XU ; Xiaofeng ZHU ; Cancan MA ; Hailong YU ; Jian JING ; Xiaobo LI
International Journal of Cerebrovascular Diseases 2015;(6):444-448
ObjectiveToinvestigatethecharacteristicsofsinglelacunarinfarct(SLI)andipsilateral multiple lacunar infarction (MLI), and the differences of risk factors and and pathologies betw een them. Methods The clinical data of al patients w ith cerebral infarction in acute internal carotid artery territory from August 1, 2008 to December 13, 2014 w ere analyzed retrospectively. Lacunar infarctions w ere screened according to the clinical manifestations and imaging findings. The patients w ere divided into a SLI, a unilateral MLI in the same blood supply area (MLI 1) and a unilateral MLI in the different blood supply area (MLI 2) group according to the number and location of the lesions show ed on diffusion w eighted imaging. Multivariate logistic regression analysis w as used to identify potential independent risk factors. Results The incidences of ipsilateral carotid plaque (73.33%vs.48.67%; χ2 =5.801, P=0.016), ipsilateral unstable carotid plaque ( 70.0%vs.42.5%; χ2 =7.192, P= 0.007 ), and ipsilateral carotid stenosis ≥50%(16.67%vs.1.77%; χ2 =8.327, P=0.004) of the MLI 1 group w ere significantly higher than those of the SLI group; the incidence of atrial fibril ation of the MLI 2 group w as significantly higher than that of the SLI group (40.0%vs.0.88%; χ2=15.887, P<0.001); there w ere no significant differences in the remaining risk factors among each group. Multivariate logistic regression analysis showed that atrial fibrilation (odds ratio [OR] 14.452, 95% confidence interval [CI] 1.558-134.011; P=0.019) and ipsilateral carotid stenosis ≥50% (OR 11.483, 95%CI 2.202-59.891; P=0.011) w ere the independent risk factors for MLI. Conclusions MLI may have different risk factors and pathogeneses w ith SLI. Atherosclerotic lesions and embolism are the important pathogeneses of MLI, w hile SLI is not.
8.A comparative study between bedside pleuropulmonary ultrasonography and chest X-ray in patients with dyspnea
Hong LI ; Yidan LI ; Weiwei ZHU ; Qizhe CAI ; Lanlan SUN ; Lingyun KONG ; Xiaoguang YE ; Xiuzhang LYU
Chinese Journal of Ultrasonography 2017;26(2):116-120
Objective To evaluate the ability of high resolution pleuropulmonary ultrasonography and bedside chest X-ray in identifying different pathologic abnormalities in patients with dyspnea,using thoracic computed tomography (CT) as a gold standard.Methods Bedside pleuropulmonary ultrasonography was performed in 350 dyspneic patients in the emergency department and ICU,111 patients were enrolled in the study with pleuropulmonary ultrasonography,chest X-ray and chest CT examination performed within 24 hours.Pathologic entities were evaluated:pleural effusion,consolidation,atelectasis,pneumothorax,pulmonary interstitial fibrosis,and pulmonary edema.The sensitivity,specificity,negative and positive prediction value of pleuropulmonary ultrasonography and chest X-ray were compared with the corresponding CT scan results.Results Pleuropulmonary ultrasonography was highly concordant with chest X-ray.Overall ultrasonography exhibited higher sensitivity than chest X-ray and CT for pleural effusion.For atelectasis and pulmonary edema,the sensitivity of ultrasonography was up to 100%.In the diagnosis of pulmonary interstitial fibrosis,the sensitivity of pleuropulmonary ultrasonography was higher than that of chest X-ray,but the specificity was slightly lower.The sensitivity of pleuropulmonary ultrasonography was slightly higher than that of chest X-ray in pneumothorax,and the specificity was coincident with chest X-ray.Although the sensitivity of ultrasonography was slightly lower for consolidation,it was still higher than chest X-ray.The ability of chest X-ray for differentiating pleural effusion from atelectasis or consolidation was worse than that of ultrasonography.Conclusions Our study demonstrates a high concordance between ultrasonography with radiography.The diagnostic performance of bedside pleuropulmonary ultrasonography is better than that of chest X-ray.
9.Gastroprotective Effects of Ascaridole on Gastric Ulcer in Rats
Yonghong ZHU ; Xinxin LI ; Hongmei MO ; Lihua ZHANG ; Lanlan ZHANG ; Shuiping ZHOU ; Xiaohui MA ; Boli ZHANG
Chinese Herbal Medicines 2012;04(1):58-62
ObjectiveTo evaluate the gastroprotective activity of ascaridole.MethodsThe gastroprotective effect of ascaridole was evaluated on ulcer healing in rats with acetic acid-induced chronic gastric ulcer,pylorus ligation- and Aspirininduced gastric ulcer.Ascaridole was ig administered with the dosages of 10 and 20 mg/kg once daily for 7 d.Results Ascaridole showed the significant anti-ulcer effects.In acetic acid-induced gastric ulcer rats,the ulcer areas after 10 and 20 mg/kg of ascaridole treatment were (65.1 ± 20.0) and (50.6 ± 11.0) mm2,respectively,which were significant lower (P < 0.01) than that of the control group [(116.7 ± 35.8) mm2].For pylorus ligation model,ascaridole showed a gastric ulcer healing effect in a dose-dependent manner.Ascaridole at the dose of 20 mg/kg showed 50% ulcer protection and had a significant (P < 0.05) gastroprotective activity since it decreased the total acidity and pepsin activity.Compared to the control group,the two dosages of ascaridole showed the significant reduction (P < 0.05) in the ulcer index on Aspirin-induced ulcer.ConclusionThis study provides evidence that ascaridole shows potential efficacy on the healing of gastric ulcers induced by acetic acid,Aspirin,and pylorus ligation.
10.β-Elemene improves endothelial cells dysfunction, and abnormal proliferation and migration of vascular smooth muscle cells
Lanlan DUAN ; Jing DONG ; Xiangcheng FAN ; Junyi ZHU ; Yifan ZHANG ; Jichun HAN ; Jing SHANG
Journal of China Pharmaceutical University 2020;51(3):333-339
This study aimed to investigate whether β-elemene could improve the dysfunction of vascular endothelial cells induced by low shear force (LSS), and the proliferation and migration of vascular smooth muscle cells induced by oxidized low-density lipoprotein (ox-LDL). Parallel plate flow chambers and ox-LDL were used to establish vascular endothelial cells (ECs) dysfunction model and vascular smooth muscle cell (VSMCs) proliferation and migration model, respectively, and the effects of β-elemene on ECs dysfunction and VSMCs proliferation and migration were examined. The activity of ROS in ECs was measured by DHE and the activity of NO in ECs was tested by DAF-FM DA. The protein phosphorylation of Akt and ERK in ECs were detected by Western blot. The proliferation of VSMCs was measured by MTT. The migration of VSMCs was examined by cell scratch test and Transwell assay. The gene expression of MMP-2 and MMP-9 in VSMCs was measured by RT-qPCR. In ECs, β-elemene could significantly reduce the LSS-induced increase in ROS, significantly increase the LSS-induced decrease in NO, decrease the phosphorylation of ERK, and increase the phosphorylation of Akt. In VSMCs, β-elemene could significantly reduce the proliferation and migration of VSMCs induced by ox-LDL, and reduce the gene expression of MMP-2 and MMP-9. To conclude, β-elemene can improve the LSS-induced ECs dysfunction and ox-LDL-induced VSMCs proliferation and migration.