1.Detection of circulating cardiac troponin I autoantibodies and its clinical significance
Yu WU ; Weiguo ZHAO ; Qian SHEN
Chinese Journal of Laboratory Medicine 2008;31(7):801-806
Objective To detect the positivity of circulating autoantibodies against cardiac troponin Ⅰ (cTnI) in acute myocardial infarction (AMI) and myocarditis patients and investigate the interference of the antibodies with the detection of cTnI. Methods cTnI ELISA was established for assessment of sera obtained from 121 patients with AMI, 24 with myocarditis and 210 healthy subjects. Binding specificity of cTnI antibody from positive sera by ELISA was confirmed with Western Blot. The recovery of cTnl studies was employed to evaluating the effects of cTnl autoantibodies on cTnI immunoassays. Results Thirteen of the 121 AMI patients (10.74%) and 2 of the 24 myocarditis patients (8.3%) had positive anti-cTnI antibodyas compared with none in the healthy subjects. The recovery of cTnI by adding cTnI-C fusion proteincorresponding to final cTnI concentration of 0.625-100 ug/L to sample with anti-cTnI antibody wasinhibited significantly (Spearman correlation coefficient r=0.943, P=0.005 ). There was no significantchange of recovery of cTnl when adding it to a normal sera(Spearman correlation coefficient r=0.377,P=0.461). When cTnI-C complex corresponding to 20 ug/L cTnI was added, 5 of the 15 sera with anti-cTnIantibody were found with the inhibition of recovery (<80%). Conclusions Autoantibodies against cTnIwere increasing in patients with AMI and myocarditis, yet it appears that these autoantibodies could interferenegatively with the cTnI immunoassay. Thus, it should be paid more attention to cTnI immunoassays.
2.Imaging findings of solitary fibrous tumors of the lower extremity: Two cases report and review of the literatures
Changliang YU ; Yongqiang YU ; Cheng ZHANG ; Bensheng ZHAO ; Yinfeng QIAN
Chinese Journal of Interventional Imaging and Therapy 2009;6(6):541-544
Objective To analyze the imaging appearances of solitary fibrous tumors (SFT) of the lower limb.Methods The imaging manifestations of SFT of the lower limb proved with pathology in 2 patients were reported and the relevant literatures were reviewed.All patients underwent MR examination,and 1 received skeletal radiography.Results Both tumors were mainly located within the biceps muscle of thigh.MR demonstrated that the tumor appeared as a solitary round or oval well circumscribed mass,with inhomogeneous low to intermediate intensity signal on T1WI and heterogeneous low to high intensity signal on T2WI.Inhomogeneous enhancement was demonstrated on T1WI.Marked enhancement of solid components in the tumor was identified.No bone destruction was found on plain film.Conclusion There are some characteristics on the imaging of SFT of the lower extremity.MRI is the optimal imaging method for the diagnosis of this disease.
3.Effects of spectral domain optic coherence tomography in monitoring glaucomatous progression of POAG
Jun, ZHAO ; Ling, LUO ; Qian-Qian, XU ; Hong-Wei, ZHAO ; Yu-Bo, GONG
International Eye Science 2017;17(10):1939-1941
AIM: To evaluate the ability of spectral domain optic coherence tomography ( SD-OCT ) parameters to detect progressive structural damage in primary open angle glaucoma ( POAG) by contrasting with visual field. ·METHODS: Retrospectively we evaluated 48 subjects (48 eyes ) of POAG, followed up 14 to 62mo. The parameters of SD-OCT and visual field were obtained. The correlation between the change of visual field measurements and OCT measurements were analyzed. Visual field progression was defined as reproducible drop of at least 2dB of mean deviation (MD) from the baseline visit. ROC curve was made to evaluated the ability of OCT parameters in detect progression of POAG. ·RESULTS: The 25 eyes were classified in progression group and 23 eyes were in non-progression group. No significant correlation was seen between OCT parameters and visual field in non-progression group. In progression group, OCT parameters which were significantly correlated with MD reduce were rim volume ( r=-0. 5997, P=0. 0007), C/D vertical ratio (r=-0. 6309, P=0. 0003), RNFL(r= 0. 4201, P= 0. 0260), and GCC(r= 0. 7080,P<0. 01). ROC curves showed the GCC reflected the reduce of MD accurately (P=0. 013). ·CONCLUSION: Part parameters of SD-OCT can reflect the progression of POAG accurately and provided a new method to detect the damage of visual function of POAG.
4.Difference analysis of proteome between diabetic cataract and age related cataract
Qian-qian, YU ; Yong, YAO ; Zhao-dong, CHU ; Yong-hui, TAO ; Jun, SHAO ; Yu-zheng, HUANG
Chinese Journal of Experimental Ophthalmology 2012;30(6):548-552
Background With the changes of diet and living style,the diabetes has become the major diseases affecting human health.Diabetic cataract is a common complication of diabetes. Objective The present study was to investigate the difference of lens proteomics between diabetic cataract and age related cataract using two dimensional electrophoresis (2-DE) and mass spectrometry in order to postpone happening of diabetic cataract and offer the effective approach to the prevention and therapy of diabetic cataract. Methods The lenses were obtained from 8 diabetic patients and 12 age-related cataract patients during the surgery to extract the protein by lysis and centrifugation.The lens proteins were separated using immobilized pH gradients 2-DE.Image analysis was carried out using PDQuest Advanced-8.0.1 software package.Significant difference of the crystallines was identified by matrixassisted laser adsorption/ionization time of-flight-mass spectrometry (MALDI-TOF-MS) and peptide mass fingerprint combined with protein database. Results The maps of 2-DE showed that lens proteins of diabetic cataract and age related cataract were in the section of pH 5-9 with the relative molecular weight 14000-97000;while relative molecular weight of more abundant crystalline was localized at 20000-31000.About 3 differential protein spots were detected by image analysis software.Two crystallines,αB and βB1 crystallin,were identified using MALDI-TOF-MS.Conclusions Proteomic analysis of lens can be accomplished and the proteins can be well separated,moreover,differential proteins can be analyzed using 2-DE and mass spectrometry between diabetic cataract and age related cataract.These results indicate that αB and βB1 crystallin proteins accelerate the development of diabetic cataract.This technique offers a new avenue for clarity of lens proteins of diabetic cataract other than age related cataract.
5.A case of human herpes virus 6 meningoencephalitis with normal immune function
Yu ZHAO ; Yiyi WANG ; Qian LI ; Chuanxia LI
Chinese Journal of Neurology 2021;54(6):597-600
Meningoencephalitis caused by the human herpes virus 6 is common in acquired immune deficiency syndrome patients or in patients after organ transplantation, rarely in immunocompetent adults. The clinical manifestations include headache, drowsinesss, coma, epileptic attack, psychiatric symptom and focal neurological signs. Antiviral therapy is effective, however the prognosis should be poor if the treatment is not timely. The clinical data of one case of meningoencephalitis caused by the human herpes virus 6 in Tianjin Haihe Hospital in October 2019 were analyzed. Meningoencephalitis caused by the human herpes virus 6 can be recurrent. The clinical manifestations are nonspecific and the diagnosis is difficult. The next generation sequencing of cerebrospinal fluid is a powerful method to identify pathogens.
6.Study of IL-1?, TNF-? and IL-6 gene expression for peripheral blood mononudear cells in non-dialysis uremic patients
Zhiyuan YU ; Jiaqi QIAN ; Hanfang ZHAO ; Al ET ;
Chinese Journal of Nephrology 1997;0(05):-
To determine whether uremia per se can activate peripheral blood mononuclear cells (PBMCs). Methods Maintained hemodialysis patients with cuprophane, non-dialysis uremic patients and healthy volunteers were selected to investigate IL-1?、 TNF-? and 11,6 mRNA in PBMCs by RT-PCR and cells in situ hybridization. Results IL-1?,TNF-? and IL-6 mRNA in PBMCs were undetected in healthy volunteers, but these cytokine gene expression were detected in hemodialysis patients and non-dialysis uremic patients. IL-1?、TNF-? and IL-6 mRNA level was lower in non-dialysis uremic patients than that in hemodialysis patients. Conclusion Uremia per se or its related factors may activated PBMCs and the preactivation of PBMCs might be associated with the body resistance against infection in uremic patients.
7.Construction of System Framework of Basic Dataset of Nursing Management Information for Hospital of TCM
Yu ZHAO ; Changxiu WAN ; Qiong ZHOU ; Qian XU
Journal of Medical Informatics 2017;38(5):39-42
Starting with the concepts of basic dataset and basic dataset of nursing management information of hospital of Tradtional Chinese Medicine (TCM),the paper introduces the research purpose,construction principle,construction method,construction contents and system framework of the basic dataset standard system of nursing management information of hospital of TCM,in order to lay a foundation for achieving nursing management data resource sharing and exchange of hospital of TCM.
8.Effect of F89 on body v levels of Gaoyou duck.
Yu-chuan ZHOU ; Yin-xue XU ; Ru qian ZHAO
Chinese Journal of Applied Physiology 2002;18(4):316-328
Animals
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Benzodiazepines
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pharmacology
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Ducks
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physiology
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Growth Hormone
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blood
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Insulin-Like Growth Factor I
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metabolism
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Serum
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metabolism
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Weight Gain
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drug effects
9.Experimental Study on Anti-Gastric Ulcer Effect of Aqueous Extractive of Clarke Boea Herb
Kai ZHU ; Xin ZHAO ; Yu QIAN ; Ruokun YI
Chinese Journal of Information on Traditional Chinese Medicine 2014;(8):63-66
Objective To observe effects of aqueous extractive of Clarke boea herb on mice with gastric ulcer, and provide basis for clinical application.Methods Gastric ulcer model was induced by reserpine. The mice were divided into normal group, model group, ranitidine group, low and high dose of Clarke boea herb groups. Mice in treatment groups were given corresponding drugs by gavage, and the normal group and control group were given the same amount of saline for 4 weeks. The area of gastric ulcer, serum proinflammatory cytokines gastric juice volume, gastric juice acidity, iNOS and COX-2 gene expressions were detected.Results Compared with control group, the gastric ulcer area in low and high dose of Clarke boea herb groups decreased significantly. Clarke boea herb increased the SS and VIP, decreased the MOT and SP serum levels (P<0.05,P<0.01). Clarke boea herb reduced the levels of serum proinflammatory cytokines of IL-6, IL-12, TNF-α and IFN-γ(P<0.05,P<0.01). Clarke boea herb also decreased the genetic expressions of iNOS and COX-2 (P<0.05,P<0.01).ConclusionClarke boea herb has good gastric ulcer preventive effects, and the high dose of Clarke boea herb group showed the best efficiency.
10.Characteristics of autoantibody and its perspectives for clinical diagnostics
Gusheng TANG ; Dongbao ZHAO ; Yu WU ; Qian SHEN
Chinese Journal of Laboratory Medicine 2012;35(3):193-196
Disease-associated autoantibodies (AAB) are important for the diagnosis of respective autoimmune diseases (AID).Autoantibodies can also be used for monitoring of response to therapy and for prognostic purpose.However,significant biological heterogeneity of autoantibody response,the difficulty in simultaneously improving detection sensitivity and specificity of autoantibodies and the lack of standardization in detection methods lead to limitations in its clinical applications and some difficulties in explaining the test results.It is important to search for novel autoantibodies in sera,to establish and standardize automated detection platforms with good quality and to perform well-designed clinical evaluation in the future research and clinical applications of autoantibodies.