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.Investigation and analysis for requirement of hierarchical model of nurses
Ailing FAN ; Hongyan YU ; Qian YOU ; Yanhua ZHAO
Chinese Journal of Practical Nursing 2008;24(15):50-51
Objective To study the influence of hierarchical model on the professional attitude and quality improvement of nurses and supply references for the apphcation of hierarchical model.Methods 310 nurses were divided into the control group(158 cases)and the practice group(152 cgses).The practice group adopted hierarchical model while the control group did not.Investigation was carried out in 15 aspects such as training requirement,choosing of nursing posts and departure intention,etc.Results The nursing teaching pest and nursing management post in the aspect of post requirement between the two groups had no statistical difference(P>0.05),but statistical difference existed in other items(P<0.05).In the aspect of training requirement evident difference existed in two groups(P<0.05).Conclusion Application of hierarchical model proved to be a pivotal method to improve the professional passion and loyalty of nurses.
6.Factors Influencing Agrobacterium-mediated Transformation of Foxtail Millet (Setaria italica)
Yinghui LIU ; Jingjuan YU ; Guangming AO ; Qian ZHAO
Chinese Journal of Biochemistry and Molecular Biology 2007;23(7):531-536
An efficient and repeatable approach in transforming the foxtail millet (Setaria italica ) using Agrobacterium LBA4404 horboring the plasmid pBI121 was established. Factors affecting transformation efficiency were investigated including the genotype, explants, the density of bacteria, the duration for inoculation and co-cultivation, and the concentration of acetosyringone in the medium. The maximum transformation conditions were: the callus induced from inflorescence was used as explant; the duration for inoculation with Agrobacterium at low cell density was 30-40 min; for the co-cultivation , the suitable concentration of acetosyringone in the medium was 0.1 mmol/L, and the duration was 2 days.
7.Clinical features of 70 cases of psoriatic arthritis
Wei ZHAO ; Qian YU ; Yangfeng DING ; Shaoqiong XIE ; Yuling SHI
Chinese Journal of Dermatology 2016;49(9):607-611
Objective To investigate the prevalence of psoriatic arthritis (PsA) in patients with psoriasis and its clinical features.Methods A cross-sectional study was conducted among patients diagnosed with psoriasis from January 2014 to January 2015.Through a questionnaire survey,the diagnosis of PsA was confirmed according to the Classification Criteria for Psoriatic Arthritis (CASPAR) in patients with suspected PsA.Clinical data were collected from patients with newly and previously diagnosed PsA.Statistical analysis was carried out by t test for two-group comparisons,one-way analysis of variance (ANOVA) for multi-group comparisons,and chi-square test for comparisons of rates.All the statistical tests were two-sided.Results Totally,1 062 outpatients with psoriasis were enrolled into this study,and 125 were suspected to have PsA.According to the CASPAR,70 (6.59%) patients were finally diagnosed with PsA,with the ratio of male to female being 2.1 ∶ 1,and 45 of them (64.29%) were newly diagnosed.Psoriasis vulgaris lesions were observed in 50 (71.43%) patients with PsA,and were the most common type of skin lesions in patients with PsA.There were 5 clinical types of PsA in these patients,including asymmetrical oligoarthritis (23 cases,32.86%),symmetric polyarthritis (19 cases,27.14%),distal interphalangeal predominant arthritis (10 cases,14.29%),vertebral or sacroiliac arthropathy (7 cases,10.00%),and arthritis mutilans (11 cases,15.71%),with some overlap among these clinical types.As relatively distinctive manifestations of PsA,dactylitis and enthesitis were observed in 14 (20.00%) and 8 cases (11.43%) respectively.In addition,43 (61.43%) cases had nail involvements.Conclusion To master clinical features of PsA and to diagnose it early are of great significance for long-term prognosis of PsA patients.
8.Ethical Dilemma and Countermeasure of the Vagrant Mental Patients
Lie QIAN ; Zhihong ZHAO ; Ping LI ; Yuhai YU ; Zhuying FANG
Chinese Medical Ethics 2016;29(5):894-897
Through investigating the hospital admission and hospital discharge of vagrant mental patients in Xi-aoshan Hospital from January 2011 to December 2015 , the present study found that there existed some ethical di-lemmas including the risk ofdiagnosing mental disorder but actually not, lack of the guarantee of patients' rights and interests and supervision mechanism without guardian, long-term retention in the wards, and so on. It is sug-gested to establish right protection and supervision committee for vagrant mental patients, reduce the misdiagnosis ofdiagnosing mental disorder but actually not through the error correction mechanism, ensure proper treatment and care, create retention way, protect the basic rights of the vagrant mental patients, reduce mental disability, avoid to stray again, so as to perfect the social management system.
9.Effects of Yili dark bee propolis on oral cariogenic biofilm in vitro.
Qian YU ; Jing LIN ; Zulkarjan-Ahmat ; Jin ZHAO
West China Journal of Stomatology 2015;33(4):343-346
OBJECTIVETo evaluate the effects of Yili dark bee propolis on the main cariogenic biofilm and mechanisms.
METHODSSusceptibilities to the ethanolic extract of propolis against Streptococcus mutans (S. mutans), Streptococcus sobrinus (S. sobrinus), Streptococcus sanguis (S. sanguis), Actinomyces viscosus (A. viscosus), and Actinomyces naeslundii (A. naeslundii) were analyzed by crystal violet stain method to determine the minimum biofilm eradication concentration (MBEC). The biofilm was initially cultivated for 24 h. Subsequently, the propolis groups with different concentration MBEC and initial pH 7.0 were cultured for 24 h. Moreover, the pH value was measured to evaluate the acid-producing ability of the tested plaque biofilm. The effects of propolis on the insoluble extracellular polysaccharide synthesis of S. mutans biofilm were evaluated by anthrone method.
RESULTSThe MBEC of Yili propolis on S. mutans, S. sobrinus, S. sanguis, A. viscosus, and A. naeslundii were 6.25, 1.56, 3.13, 0.78, and 0.78 mg.mL-1, respectively. Propolis could decrease the ΔpH of the tested plaque biofilm, and the differences between the control and propolis groups were statistically significant (P<0.05). At MBEC, propolis could reduce the ability of S. mutans in synthesizing insoluble extracellular polysaccharides.
CONCLUSIONYili propolis demonstrate remarkable eradicative effects on the cariogenic plaque biofilm, showing inhibition of the synthesis of biofilm-produced acids and insoluble extracellular polysaccharides.
Actinomyces viscosus ; Animals ; Bees ; Biofilms ; Dental Plaque ; Propolis ; Streptococcus mutans ; Streptococcus sanguis ; Streptococcus sobrinus
10.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