1.Anti-N-methyl-D-aspartate receptor encephalitis in children
International Journal of Pediatrics 2013;(2):179-182
Anti-N-methyl-D-aspartate receptor encephalitis is an autoimmune syndrome of central nervous system.The main clinical manifestations include psychiatric symptoms,movement disorders and seizures.It is often misdiagnosed as viral encephalitis.Tumors,especially the ovarian teratoma,play an important role in the disease.The prevalence in children is beyond imagination.Anti-NMDAR antibodies are specific diagnostic tests.Immune suppression is the main treatment.The first-line treatments include corticosteroids,intravenous immunoglobulin,and plasmapheresis.The second-line treatments include biological agents and cytotoxic drugs.Early diagnosis and treatment are essential for neurologic recovery.Overall prognosis is good.
3.Effect of Tongxinluo capsule combined with metoprolol on elderly patients with coronary heart disease and angina pectoris and its influence on hemorheology and inflammatory factors
Chinese Journal of Primary Medicine and Pharmacy 2017;24(19):2925-2929
Objective To investigate the effect of Tongxinluo capsule combined with metoprolol on elderly patients with coronary heart disease and angina pectoris and its influence on hemorheology and inflammatory factors.Methods 135 elderly patients with angina pectoris of coronary heart disease were selected,and they were randomly divided into treatment group (68 cases) and control group (67 cases).The treatment group was treated with Tongxinluo capsule combined with metoprolol,while the control group was treated with metoprolol.The two groups were treated for 8 weeks.The curative effect of the two groups was compared,the number and duration of angina pectoris,the changes of hemorheology and inflammatory factors before and after treatment were compared.Results The total effective rate of the treatment group (94.12%) was higher than 76.12% of the control group (P < 0.05).After treatment,the frequency and duration of angina pectoris in the treatment group were (6.03 ± 1.21) times/week and (3.02 ± 0.76) min/time,respectively,which were significantly lower than those in the control group [(9.87 ± 1.46) times/week and (4.86 ± 0.98) min/time] (t =16.649,12.201,all P < 0.05).After treatment,the whole blood viscosity at high shear rate [(3.76 ± 0.41) mPa/s],whole blood viscosity in low shear [(8.13 ± 0.76) mPa/s],plasma viscosity [(1.23 ± 0.08) mPa/s],erythrocyte aggregation index [(2.06 ± 0.27)],fibrinogen [(2.46 ± 0.41) g/L] in the treatment group were lower than those in the control group[(4.53 ± 0.52) mPa/s,(9.61 ± 0.89) mPa/s,(2.09 ± 0.27) mPa/s,(2.63 ± 0.35),(3.53 ± 0.62) g/L] (t =9.562,10.396,25.170,10.604,11.844,all P < 0.05).After treatment,the interleukin-6 (IL-6) [(8.49 ± 1.76) pg/mL],intercellular adhesion molecule-1 (ICAM-1)[(85.25 ± 8.92) pg/mL],C reactive protein (CRP) [(8.74 ± 1.76) mg/L] in the treatment group were lower than those in the control group[IL-6 (11.32 ± 2.10) pg/mL,ICAM-1 (103.42 ± 10.72) pg/mL,CRP (14.98 ± 2.24)mg/L] (t =8.491,10.712,18.012,all P<0.05).Conclusion Tongxinluo capsule combined with metoprolol in the treatment of elderly patients with coronary heart disease angina pectoris has obvious curative effect,and can improve the patients'blood rheology and inflammatory reaction.
4.Study of the relationship between carotid atherosclerosis and progressing stroke
Qian-mei CHEN ; CHEN CHEN ; CHEN CHEN
Chinese Journal of Rehabilitation Theory and Practice 2004;10(12):731-732
ObjectiveTo investigate the relationship between carotid atherosclerosis and progressing stroke.Methods103 patients with acute cerebral infarction within the first 24 hours from onset were tested with carotid color doppler ultrasonography during the first week from admission. Univariate and multiple logistic regression analyses were performed to examine the relationship between carotid intima media thickness (IMT), plaque structure, the degree of artery stenosis and the early deterioration of cerebral infarction.ResultsPrevalence of carotid plaque and thickness of IMT in patients with progressing stroke were higher than that in non progressing patients. In logistic regression, presence of carotid plaque was independent predictors of progressing stroke. Plaque size, extent of artery stenosis and IMT were not included in the regression model.ConclusionPlaque structure and its chemical feature may be the cause of progressing stroke.
5.The parameter estimation method of Gaussian point spread function in microscopic images.
Journal of Biomedical Engineering 2014;31(1):53-57
As the most popular simplified model of the optical imaging system, the acquisition of the Gaussian point spread function (PSF) parameter is one of the hotspots and key points on which people do research in the field of image restoration. Based on the idea by which there exists deterministic mathematical relationship between Gaussian OTF feature points as well as its parameter and the frequency representation of the image in an existed literature, we proposed an automatic, accurate, stable, and improved approach. This method is able to give prominence to the related calculation feature by a Gaussian convolution and degeneration operation and finally realize the automatic esti mation of PSF parameter of a microscopic image. Experiments have proved that a good restoration result can be achieved utilizing the estimated PSF by the present method, which is of considerable application and reference value in restoration of other sorts with Gaussian approximate PSF model or 3D microscopic image restoration.
Algorithms
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Humans
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Image Interpretation, Computer-Assisted
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Imaging, Three-Dimensional
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Microscopy
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Models, Theoretical
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Normal Distribution
6.Decision-making of restorations for endodontically treated teeth.
West China Journal of Stomatology 2015;33(2):115-120
Coronal restoration of endodontically treated teeth may be viewed as one of the main parameters that influence the outcome of endodontic treatment. The purposes of restoring endodontically-treated teeth include preventing recontamination of the root canal system and periapical area, replacing the compromised dental hard tissue, restoring the coronal morphology and function, providing necessary strength for the restoration/tooth complex for functional stress, and avoiding crown and/or root fracture. This article reviewed recent researches on the restoration of endodontically treated teeth, provided evidence for clinical practice on topics as when to restore them, basic principles to be considered during treatment planning, and specific restoration options for both anterior and posterior teeth under different functional occulsal load conditions. Several issues should be taken into account during the decision making process, such as remaining tooth tissue, functional masticatory forces, comprehensive oral rehabilitation, and esthetic requirements.
Decision Making
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Dental Restoration, Permanent
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Humans
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Root Canal Therapy
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Tooth Crown
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Tooth, Nonvital
7.MRI of atherosclerotic plaque
Journal of Medical Postgraduates 2003;0(07):-
MRI is a powerful noninvasive imaging tool. Multispectral MRI sequences have been validated to characterize atherosclerotic plaque components, size, thickness and vulnerable plaque in animals and humans. Developments of intravascular MRI (IVMRI) may play an important role in this regard. MRI contrast agents may identify inflammation and thrombus within atherosclerotic plaque. MRI has progressed to be used in serial studies of atherosclerotic plaque progression and regression in the face of therapeutic intervention.
8.Diagnosis and Management of Partial ACL Tears
Jiwu CHEN ; Shiyi CHEN ;
Chinese Journal of Sports Medicine 1983;0(03):-
Objective To study the maneuver of diagnosis and management of anterior cruciate ligament (ACL) partial tears. Methods 24 cases of ACL partial tears confirmed by arthroscopy including anteromedial band (AMB) tear in 7 cases and posterolateral bulk (PLB) tear in 17 cases were investigated, from Mar 2000 to Jun 2002. ACL reconstruction was performed in 16 cases under arthroscopy. Clinical findings including symptoms or signs, physical examinations and MRI were collected for differential diagnosis of AMB and PLB tear. The efficiency of ACL reconstruction was evaluated by Lysholm scale with average follow-up of 11 months. Results 28.5% AMB and 98.2% PLB tear cases showed knee instability. Regarding the results of anterior drawer test, Lachman test and pivot shift test, it is positive 71.4%, 14.3% and 0 in AMB tears respectively; and 17.6%, 98.2%, 76.5% in PLB tears. The Lysholm scores were significantly increased from preoperative 63.53?8.11 to postoperative 93.47?2.62(P
9.Effect evaluation of three ELISA kits in detection of paragonimiasis
Chinese Journal of Schistosomiasis Control 2016;28(3):264-268
Objective To evaluate the effects of 3 kinds of ELISA reagents on the detection of human paragonimiasis. Meth?ods A total of 45 serum samples from patients with paragonimiasis,218 serum samples from patients with other parasitic dis?eases as well as 80 serum samples from healthy people were detected by GD?ELISA(IgG antigen ELISA detection reagent),ES?ELISA(using excretory/secretory(ES)products of Paragonimus westermani),and sAg?ELISA(using semi?purified antigen (sAg)of P. westermani),respectively. The effects of the 3 reagents were evaluated and compared. Results The sensitivities of GD?ELISA,ES?ELISA,and sAg?ELISA were 95.6%(95%CI:89.6%~100.0%),93.3%(95%CI:86.0%~100.0%)and 86.7%(95%CI:76.8%~96.6%),respectively;the specificities of the above three reagents were 88.6%(95%CI:85.0%~92.2%),88.9%(95%CI:85.3%~92.5%)and 99.0%(95%CI:97.9%~100.0%),respectively,and the Youden indexes of them were 0.84,0.82 and 0.86,respectively. Conclusion sAg?ELISA is more suitable than GD?ELISA and ES?ELISA for clin?ical sample tests in paragonimiasis endemic areas in China.
10.Distribution of Klebsiella pneumoniae infection and antimicobial resistance change in elderly patients
International Journal of Laboratory Medicine 2015;(10):1330-1331,1335
Objective To investigate distribution of Klebsiella pneumoniae infection and its drug resistance change in elderly pa‐tients during 2011 and 2013 .Methods API system was used to identify bacteria ,collected from clinical samples of elderly patients during 2011 and 2013 .Drug sensitivity was tested by using disk diffusion method .Results The isolation rate of Klebsiella pneu‐moniae from 2011 to 2013 was 9 .93% ,11 .56% and 13 .37% .During these three years ,the isolation rate of strains was the highest in Intensive Care Unit ,and the specimens mainly distributed in sputum .There was an increasing tendency of the resistance rates of Klebsiella pneumoniae to commonly used antibiotics ,though the resistant rate to piperacillin/tazobactam ,ceftazidime ,meropenem and amikacin was below 30% .Conclusion Observation on changes of drug resistance of Klebsiella pneumoniae and reduction of risk factors for bacteria infection ,might be important for prohibiting the increasing of drug resistance of Klebsiella pneumoniae .