Research on treatment process of major compatibility and minor incompatibility in cross matching with microcolumn agglutination technique / 国际检验医学杂志

Objective To solve the clinical blood transfusion problem of the major cross-match compatibility and the minor cross-match incompatibility by using the microcolumn agglutination technique in the cross matching of the patients with non-auto-immune hemolytic anemia(non-AIHA).Methods The process was set up to analyze the reasons of the minor cross-match incom-patibility by reviewing the sample information from the patient and the blood donor,re-detection of ABO and Rh blood group,direct anti-globulin test (DAT),comparison of the agglutination intensity between DAT and minor cross-match,and antibody screening tests,etc.,and the corresponding laboratory treatment was carried out.Results The problem of minor cross-matching incompatibil-ity in 3 014 cases of non-AIHA were treated by this process,the result showed that the main reason leading to minor cross-match incompatibility was the DAT positive(98.6%).Those patients were infused with the RBC suspension with minor cross-match in-compatibility,comparing the occurrence rate(0.52%)of blood transfusion adverse reaction and the blood transfusion effectiveness (87.4%)had no statistical differences compared with the occurrence rate(0.48%)of blood transfusion adverse reaction and the blood transfusion effectiveness(85.4%)in the transfused RBC suspension with major and minor cross-matching compatibility,the differences had no statistical significance(P >0.05);other causes leading to the minor-cross-matching incompatibility were the sam-ple or blood group errors(0.8%),irregular antibody from the donor(0.6%),in such situation,the blood could be exchanged and the blood cross-matching could be performed again,the RBC suspension with major and minor compatibility was transfused.Conclusion This process can quickly and safely solve the clinical blood transfusion problem of minor cross-match incompatibility in the non-AIHA patients and is suitable for the laboratory adopting the microcolumn agglutination technique for conducting the cross-matc-hing test.

Clinical application of CCND1 gene expression detection with fluorescent quantitative polymerase chain reaction in the diagnosis of breast cancer / 国际检验医学杂志

Objective To use fluorescent quantitative polymerase chain reaction (FQ-PCR) todetect the level of cyclin D1 gene (CCND1), and to investigate its clinical application in the diagnosisand monitoring of breast cancer. Methods FQ-PCR was applied to detecting the expression level ofCCND1 gene in peripheral blood from 15 healthy females, 30 patients with benign breast disease and81 patients with breast cancer with β2-microglobin as the internal control. Results There were no sig-nificant difference in the level of CCND1 expression between healthy control group and benign breastdisease group (P>0. 05). The level of CCND1 expression was significantly higher in breast cancergroup than that in healthy control group and benign breast disease group (P<0.05). The difference inβ2-microglobin was statistically insignificant among three groups (P> 0. 05). The positive rate was45.7% in breast cancer group, and 0 in benign breast disease group. Conclusion FQ-PCR is a rapid,sensitive and specific method for quantitative determination of CCND1 gene, which may he used as anavailable tool for the diagnosis, monitoring of therapeutic effect and metastasis as well as prognosis e-valuation of breast cancer.

Clinical application of fluorescent quantification polymerase chain reaction for detecting CK19 in the diagnosis of breast cancer / 中华检验医学杂志

005) There was significant difference between pre-operation and 56 th day( P

Apoptosis mechanism of cultured human hepatocyte HL-7702 induced by glycodeoxycholate / 西安交通大学学报(医学版)

Objective To investigate the apoptosis of cultured normal human hepatocyte HL-7702 cells induced by glycodeoxycholate(GCDC)and to explore its possible mechanism.Methods HL-7702 cells were incubated with various concentrations(100,150,200 and 250 ?mol/L)of GCDC.The changes of cellular morphology were observed under optical microscope.The apoptosis rate of HL-7702 was determined by Annexin V-FITC/PI double staining.The changes of HL-7702 cell intracelluar \[Ca2+\]i were determined with Fluo-3/AM load technique.The mRNA expression levels of Bcl-2/Bax in HL-7702 cells were analyzed by RT-PCR.Results Typical apoptotic morphological changes were observed after HL-7702 cells had been treated with 150 ?mol/L GCDC for 24 h;HL-7702 cells could be induced to undergo apoptosis in a concentration-dependent manner after 100,150,200,and 250 ?mol/L GCDC treatment for 24 hours.The apoptosis rates were(13.16?2.9)%,(20.3?3.0)%,(25.02?2.1)% and(45.02?3.5)%,which were markedly higher(P