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ObjectiveTo establish the proper review rules for the microscopic screening of urine samples tested by automatic urinalysis work station which is composed of LabUMat urine dry chemical analyzer and Urised urine sedimental analyzer.Methods The paired comparison was used to analyze the results tested by microscopy and Urised.A total of 2015 random urine samples were enrolled to establish and validate review rules.All the samples were collected from the inpatients and ontpatients of General Hospital of the People's Liberation Army from May to November 2011 and tested by urinalysis work station.2015 urine samples were firstly tested by urinalysis work station,including both urine dry chemical analyzer and urine sediments analyzer.Then each urine sample was examined microscopically by two technicians-in-charge using double-blind method.The average results from the two technicians were used as review results.Compared with review results,we set up the review rules and evaluated the Irue positive rate,false positive rate,true negative rate,false negative rate (omission diagnostic rate) and review rate.According to different test methods by automatic urinalysis work station,four microscopic review protocols were defined:( 1 ) Protocol 1:based on chemistry results only,microscopy review was performed when any of WBC,RBC,PRO and NIT was positive; (2) Protocol 2:based on urine sedimental analysis only,microscopy review was performed when any of WBC,RBC and CAST count was over upper limit of the reference range ; (3) Protocol 3:if any of BLD vs.RBC,LEU vs.WBC was different between two systems,or quantitative results had two or more than two gradient differences,microscopy review was performed; (4) Protocol 4:if any of BLD vs.RBC,LEU vs.WBC was different between two systems,or CAST was over upper limit of the reference range,or alam appeared,microscopic review was performed.300 randomly selected urine samples were tested to validate the review rules.Omission diagnostic rate and review rate were used to evaluate the rules.Results According to our review rules,the positive samples rate was 41.14％ (829/2015) and the negative rate was 58.86％ ( 1186/2015 ) ; Positive samples were composed of RBC (50.30％),WBC (53.32％) and CAST (3.74％).The review rates of four protocols were 42.93％ (865/2015),39.70％ (810/2015),29.58％(596/2015),18.91％ (381/2015 ),respectively.The false negative rates (omission diagnostic rates) were 6.36％ (128/2015),4.42％ (89/2015),1.34％ (27/2015)and 1.04％ (21/2015)respectively.Protocol 4 was selected as an ideal plan.Additional 300 urine samples were tested using protocol 4 in order to confirm the review rule.The review rate,consistency rate,true positive rate,false positive rate,true negative rate,omission diagnostic rate were 19.67％ (59/300),91.67％ (275/300),35.67％ (107/300),7.67％(23/300),56.00％ (168/300),0.67％ (2/300),respectively.After image review revised,the review rate was 8.67％ (26/300).ConclusionThe review rules established by our research for Urinalysis Work Station can find the abnormal urine samples effectively and exactly and can reduce the workload significantly.(Chin J Lab Med,2012,35:810-814)

Objective: To study the influence of Centipede Acidic Protein(CAP) on the proliferation and collagen synthesis of cultured neonatal rat cardiac fibroblasts(CFb) induced by angiotensinⅡ(AngⅡ),and to explore the mechanisms of CAP on cardiac fibrosis.Methods: Neonatal rat cardiac fibroblasts were treated with AngⅡ to produce fibrosis model.The effects of CAP on proliferation of CFb were observed by MTT colorimetric assay,synthesis of collagen was observed by the hydroxyproline concentration.The NO contents were measured by Nitric acid reductase method.The c-myc expression was examined by semi-quantitative RT-PCR analysis.Results: Compared with that of control group,the proliferation,collagen synthesis and the levels of c-myc mRNA expression of CFb in the model group increased,while the NO contents decreased obviously(P

OBJECTIVE:To study the effects of Chongcaodihuang(CCDH)syrupus on immune function and antistress ability.METHODS:The experiments were carried out to investigate the effects of CCDH on weight of immune organs,the phagocytization of the monocytes by using the method of carbon particles expurgation,the content of antibody of hemolysin in serum,and time of swimming and hypoxia tolerance in mice.RESULTS:CCDH could enhance weight of immune organs,the phagocytization of the monocytes and increase the content of antibody of hemolysin in serum.It can also delay the time of swimming and strengthen hypoxia tolerance in mice.CONCLUSION:CCDH significantly improve immune function and antistress ability of mice.

Objective To summarize and analyze the shielding,retention and reentry works of blood donors,and to investigate the feasibility of retention and reentry strategy.Methods The samples of ELISA single reagent reactive/NAT non-reactive and ELISA non-reactive/ NAT reactive were negative by confirmatory tests.Then the blood was weeded out and the donation qualification was reserved.The donors of shielding more than 6 months could propose the reentry application at any blood station in the province,and were allowed to return to the ranks after qualified by routine detection and re-detection by Jiangsu Provincial Blood Center.The unqualified rates were compared between the donors of again blood donation after retention and reentry with the common donors by χ2 test.Results From October 2014 to June 2016,1 615 cases were ELISA single reagent reactive/NAT non-reactive,among which 67 cases were confirmed as positive,42 cases were undetermined and 1 506 cases were negative;831 cases were ELISA non-reactive/ NAT reactive,in which 809 cases were positive by confirmation and 22 cases were negative.A total of 1 528 donors were confirmed as negative and their donation qualifications were reserved,89 donors conducted blood donation again and 79 were qualified in blood detection.The unqualified rate was 11.24%,compared with that of common donors,the difference was statistically significant(P<0.001).Meanwhile,596 donors applied for reentry,among them 218 persons were weeded out by the reentry blood station.In remaining 378 samples sent to Jiangsu Provincial Blood Center,359 samples were qualified and confirmed to the reentry condition.Among them,332 donors conducted blood donation and all were qualified by blood detection.Conclusion The reentry strategy in Jiangsu Province is reasonable and feasible,but the donors retention strategy needs to be further optimized and perfected.

OBJECTIVE： To establish UPLC fingerprint of Fortunella margarita， and to conduct its cluster analysis and principal component analysis. METHODS： UPLC method was adopted. The determination was performed on Waters Acquity UPLC BEH C18 column with mobile phase consisted of acetonitrile-0.1％ phosphoric acid solution （gradient elution） at the flow rate of 0.3 mL/min. The detection wavelength was set at 330 nm， and sample size was 2 μL. Using fortunellin as reference， UPLC fingerprints of 8 batches of F. margarita were determined. The similarity of 8 batches of samples was evaluated by TCM Chromatographic Fingerprint Similarity Evaluation System（2012 edition） to confirm common peak. Cluster analysis and principal component analysis were performed by using SPSS 24.0 software. RESULTS： There were 24 common peaks in UPLC fingerprints of 8 batches of sample，the similarity of which was higher than 0.97. Cluster analysis showed that 8 batches of samples were clustered into 2 categories. S1， S2， S3， S4， S6， S7 and S8 were clustered into one category； S5 was clustered into the other category. By principal component analysis， the accumulative contribution rate of three main components was 81.366％. CONCLUSIONS： Established UPLC fingerprint， the results of cluster analysis and principal component analysis can provide reference for quality control of F. margarita.

OBJECTIVE： To optimize and improve the quality standard for Citrus reticulata formula granules. METHODS： Totally 13 batches of C. Reticulata formula granules from 4 different manufacturers were used as trial samples， and qualitative identification of hesperidin and nobiletin in the samples were carried out by TLC according to the method of 2015 edition of Chinese Pharmacopoeia （part Ⅳ）. The quantitative analysis of naringin， hesperidin， hesperetin， nobiletin and tangeretin in C. reticulatae formula granules were conducted by UPLC[The determination was performed on Waters Acquity UPLC BEH C18 column with mobile phase consisted of acetonitrile-0.2％ phosphoric acid aqueous solution （gradient elution）. The detection wavelength was set at 283 nm， and sample size was 3 μL]. RESULTS： The results of TLC showed that in the chromatograms of samples， same color spots were shown in the corresponding positions of the chromatogram of reference substance. The results of UPLC showed， that the linear range of naringin， hesperidin， hesperetin， nobiletin and tangeretin were 0.64-6.44， 15.78-157.80， 0.17-1.66， 2.08-20.85 and 2.04-20.43 μg/mL， respectively （all r≥0.999 2）； the limits of detection were 0.03， 0.33， 0.10， 0.20 and 0.06       μg/mL； the limits of quantitation were 0.07， 1.34， 0.20， 0.60 and 0.22 μg/mL. The average recoveries were 99.4％， 99.6％， 99.7％， 99.7％ and 99.7％ （n＝9）； RSDs of precision （n＝6）， stability （n＝7） and reproducibility （n＝6） tests were all≤2.03％； naringin was detected in only 3 batches of samples from one manufacturer （the content ranged from 0.067 3 to 0.069.6    mg/g）， while the other 4 components were detected in 13 batches of samples （the contents of them ranged 0.646 5-1.728 0，   0.102 6-0.290 5， 0.023 1-0.689 8， 0.018 2-0.270 7 mg/g）. CONCLUSIONS： In this study， the quality standard of C. reticulata formula granules was improved by qualitative and quantitative methods， and the contents of hesperidin， hesperetin， nobiletin and tangeretin were not less than 0.60， 0.10， 0.02 and 0.01 mg/g， respectively.