Objective A simple,cheap and rapid method has been developed for the separation of transferrin(TRF)and albumin(Alb) by Micellar Eleetrokinetic Chromatography(MEKC).Methods Effects of separation conditions such as pH,running buffer type and concentration,surfactant types and concentration on the separation of TRF and Alb were investigated and optimized in detail.And MEKC was correlated with radioimmunoassay(RIA).Results Under the optimal conditions,the base lines separation of these proteins were achieved with satisfactory repeatability and high separation efficiency in 12 min using 50 mmol/L Tris buffer(pH 8.1) containing 10 mmol/L SDS,under 15 kV applied voltage.The linearity of the two proteins was in the range of 10-1000 mg/L.The detection limits in turn were 1.22 mg/L for TRF,1.05 mg/L for Alb with the RSD(n=6) of the migration time is<2.5% and the RSD(n=6) of peak area is lass than 5.4% for each proteins.And MEKC had better correlation with RIA,the correlative coefficient of TRF and Alb were 0.995 and 0.992,respectively.Conclusion MEKC separates TRF and Alb is a rapid,sensitive method with very small amount of samples and reagents needed.

Objective To analyze the serum level of procalcitonin (PCT) in children with bacte-rial or viral pneumonia, explore its diagnostic value in diagnosis of bacterial pneuminia in children, and so as to provide evidence for clinical use of antibiotics. Methods A total of 42 children with pneumonia(mean age was 5.6 yrs, including 24 boys and 18 girls) were divided into viral neumonia group (n=25) and bacterial neumonia group (n=17). Semi-quantitative solid-phase immunoassay was applied to measuring serum procalcitonin. There were four PCT grades:<0.5 ng/mL,≥0.5 ng/mL,≥2 ng/mL and≥10 ng/mL. X2 test was performed. Results The serum level of PCT was more elevat-ed in bacterial neumonia group than that of viral neumonia group, and the difference was statistically significant (P<0. 01). Conclusion As a sensitive marker of bacterial pneumonia in children, serum procalcitonin contributes to diagnosis and differential diagnosis of pneumonia in children, which may provide basis for clinical use of antibiotics.

Objective To investigate the clinical value of thyroid function indices and 99mTc thy-roid uptake rate in the early hypothyroidism following 131I treatment of Graves' disease. Methods 66 patients with early hypothyroidism following 131I treatment of Graves' disease,were enrolled in the in-vestigation. The thyroid funtion indices(FT3 ,FT4 and TSH) and 20 rain 99mTc throid uptake rate were determined before and after levothyroxine sodium replacement treatment. Results FT3 ,FT4 and 99mTc throid uptake rate in hypothyroidism group were significanthy lower than those in healthy control group,and TSH was significanthy higher (P<0.01). However, the differences of above parameters weren't statistically significant group between transient hypothyroidism and developing hypothyroidism group(P>0. 05). After replacement theraphy,the thyroid function and 99 mTc throid uptake rate recov-ered in transient hypothyroidism group. FT3,FT4 and 99mTc throid uptake rate in developing hypothy-roidism group were significanthy lower than those in healthy control group and transient hypothyroid-ism group,and TSH kept significanthy higher(P<0.01). Conclusion It isn't capable of differentia-ting transient and developing hypothyroidism with thyroid homone in dices and 99mTc thyroid uptake rate in the early phase. After a short time replacement therapy, the thyroid function and 99mTc throid uptake rate recover in transient hypothyroidism subjects,but don't recover in developing hypothyroid-ism subjects.

Objective To investigate the relationship between immune condition and stages of tumor in patients with coloreetal cancer by detecting the activites of peripheral blood T cells and NK cells. Methods The activites of T cells and NK cells in peripheral blood from 90 patients with cancer of colon and 40 healthy controls were detected by flow cytometry. Results The CD3+ ratio,CD4+ rati-o,CD4+/CD8+ and NK cells were decreased in cancer of colon group. CD8+ ratio was increased com-pared with that of healthy control group. This chang became more significant following by accreseence of Dukes classification. Conclusion The cellular immune function disorder exists in cancer of colon pa-tients which a aggravation with the pathogenetic condition progress.

Objective To investigate the immunological feature, and to provide evidence for di-agnosis and treatment of POEMS syndrome. Methods The results detected with serum protein elec-trophoresis (SPE), immunofixation (IFE) and immunoglobulin quantitative assay were retrospectively compared and analyzed in 27 patients with POEMS syndrome. Results For 27 cases of POEMS syn-drome, the detection rate of M protein was significantly higher detected with IFE than that with SPE. Among M protein, IgA was much more frequent than IgG (16 cases vs 5 cases), and all were typeλ. Besides, there was statistical difference in SPE results between 16 cases of POEMS syndrome with M protein positive (detected with SPE) and healthy controls. Conclusion Negative M protein result can't exclude the diagnosis of POEMS syndrome. Further evidence should be searched for, and the clinical data should be emphasized

Objective To analyze the levels of serum total bilirubin in patients and healthy con-trols, eatablish a method of using the mean of total bilirubin in serum of patients to control internal quality, and validate the reference range. Methods Frequencies mode of SPSS13.0 statistic software package was applied to performing analysis of all data, and then the analytic interval was determined based on the frequencies of the data. The daily data mean in the analytic interval was calculated. With the daily data mean as the testing data, the quality control was carried out by the same way of quality control for quality control sample. At the end of each month, the means of various analyzers were compared. Based on the results of healthy controls, the formula mean±1.96s was used to validate the current reference range. Results With the daily data mean as the testing data for quality control, its coefficient variation was within the accepatable limit, and the 95% distribition range was the same as the current reference interval. Conclusion It is necessary to establish suitable interval in which the da-ta mean was used for internal quality control. The current reference range in our hospital is proper.

Objective To study the drug resistance and production status of highly producing AmpC enzymes, extended-spectrum β-lactamases (ESBLs) and drug resistance in Acinetobacter bau-mannii. Methods Drug sensitivity test was performed with Kirby-Bauer method. ESBLs were detected with phenotype confirmatory test (double-disk synergy test), and highly producing AmpC enzymes were measured with phenotype screening method. Results 93 strains of Acinetobacter baumannii were mainly obtained from respiratory department and neurosurgery, and isolated from sputum/pharyngeal stab, raw surface/wound secretion and urine samples. 15 strains (16.1%) of highly producing AmpCenzyme-producing Acinetobacter baumannii were detected, so were 10 strains (10. 8%) of ESBLs-pro-ducing isolates. All enzymes-producing strains displayed multi-resistant, and their resistant rates to the third cephalosporin, penicillins and aztreonam were much higher than enzymes non-producing ones. None was detected resistant to imipenem. Conclusion Occurrence of highly producing AmpC en-zymes and extended-spectrum β-lactamases (ESBLs) is one of causes for Acinetobacter baumannii multi-resistance. It suggests that detection of ESBLs-producing isolates should be strengthened so as to prevent their outbreak and spread.

Objective To investigate dry chemical analysis of urine,automated quantitative anal-ysis of urine formed elements and urine living cells staining microscope extination combination of the three urine red blood cells for a variety of detection methods in the comprehensive analysis of renal dis-ease in the clinical application. Methods Gemany Miditron Junior Ⅱ of urine analyzer for chemical a-nalysis of urine. UF-1 00 automatic urine visible component analysis(referred to: UF-1 00)living cells (SM)staining, The difference in the imaging system under the microscope, in the urine of red blood cells to identify patterns observed. Results Urine dry chemical analysis,automated quantitative analy-sis of urine fomed elements and ,urlne staineg cells microscope examination of the three organic combi-nation of a variety of detection methods for urine analysis, Application of this paper, Detection of a va-riety of red blood cells urine analysis-urine flow chart of sources of identification laboratory, Improve the analysis of the urine test quality, efficiency and laboratory dinosis, made up of these expenmental methods of the deficiencies. Conclusion Kidney disease is extremely valuable to provide obj ective indi-cators, is in clinical methods.

Objective To investigate the relationship of the levels of serum lipids and bilirubin with occurrence and development of coronary heart disease (CHD). Methods 139 CHD patients and 118 healthy controls were involved in the study. The serum levels of triglyeride (TG), total cholester-ol (TC), high density lipoprotein cholesterol (HDL-C), low density lipoprotein cholesterol (LDL-C)and bilirubin were measured and compared. Results In CHD group, the levels of TG, TC, LDL-C,TG, HDL-C, LDL-C and HDL-C were significantly elevated, while the levels of HDL-C, total biliru-bin (Tbil) and indirect bilirubin (Ibil) were markedly declined. The changes were associated with the severity of coronary artery disease. There wasn't significant difference of direct bilirubin level between CHD group and healthy control group. Conclusion Blood lipid abnormality and declination of bilirubin level are closely associated with coronary heart disease. It is possible to prevent the occurrence of car-diovascular event by early intervention.

Objective To investigate the distribution and effect of class Ⅰ integron in 40 strains of clinical multi-resistant Enterobacter cloacae. Methods Kirby-Bauer method was used to analyze the drug resistance of 40 strains of multi-resistant Enterobacter cloacae and the drug resistance gene was analyzed by polymerase chain reaction (PCR). Results 28 strains (70.0%) of 40 clinical isolates were observed to contain class Ⅰ integron. Drug resistance test showed their resistance rate to 10 kind of an-tibaeterials as follow: 7.5% to imipenem, 5.0% to meropenem, 75.0% to piperacillin-tazobactam,55.0% to amikacin, 12.5% to cefepime, 52.5% to ceftazidime, 55.0% to cefotaxime, 90.0% to ceftriaxone;81.8% to ticarcillin-clavutanic acid, and 85.0% to ciprofloxacin. Conclusion This study shows that the resistance situation of Enterobacter cloacae isolates is very serious, and class Ⅰ integron may play an important role in the muhidrug resistant mechanism.