Objective To investigate the application of theoretical K value and the calibration K value on Hitachi 7600 Automatic Biochemical Analyzer .Methods Rate method was employed to detect alanine aminotransferase (ALT ) ,aspartate aminotransferase (AST) ,gamma-glutamyl transpeptidase(γ-GT) ,creatine kinase(CK) and lactate dehydrogenase(LDH) .The theoretical K value and K values calibrated by two kinds of calibration serum were recorded as K ,K1 ,K2 and the three kinds of calibration results of enzymes mentioned above were compared .Results The theoretical K values of ALT ,AST ,γ-GT ,CK and LDH were all less than their two kinds of actual K values .The results of the calibration K value were significantly superior to that of the theoretical K value .The calibration results R2 value of five kinds of enzymes were all greater than 0 .95 .Conclusion The theoretical K value is not suitable for clinical laboratories ,and the two kinds of calibration serum can meet the needs of quality control and clinical work .

OBJECTIVE:To investigate the clinical efficacy and safety of cilostazol combined with alprostadil in the treatment of peripheral arterial disease(PAD). METHODS:A total of 68 PAD patients in our hospital from Jan. 2015 to Jan. 2016 were di-vided into observation group(34 cases)and control group(34 cases)according to random number table. Control group was given basical treatment,and Alprostadil injection 2 mL+0.9% Sodium chloride injection 100 mL,ivgtt,qd. Observation group was addi-tionally given Cilostazol tablets 100 mg,po,bid,on the basis of control group. Both groups were treated for 30 days. Clinical effi-cacies of 2 groups were observed. The hemorheology indexes(hematocrit,whole blood high-shearing viscosity,erythrocyte aggre-gation index,erythrocyte deformation index,plasma viscosity),inflammatory factor indexes(TNF-α,IL-6,IL-8, hs-CRP),oxida-tion stress indexes(GSH-Px,SOD,T-Aoc,MDA),arteriosclerosis indexes(ABI,TBI,dorsalis pedis artery blood flow)were de-termined before and after treatment. The occurrence of ADR was recorded. RESULTS:Total response rate of observation group (91.18%)was significantly higher than that of control group(79.41%),with statistical significance(P<0.05). Before treatment, there was no statistical significance in hemorheology indexes,inflammatory factors indexes,oxidant stress indexes or arteriosclero-sis indexes between 2 groups(P>0.05). After treatment,hematocrit,whole blood high-shearing viscosity,erythrocyte aggregation index,erythrocyte deformation index,plasma viscosity,the levels of TNF-α,IL-6,IL-8,hs-CRP and MDA in 2 groups were de-creased significantly;while the levels of GSH-Px,SOD,T-Aoc,ABI,TBI and dorsalis pedis artery blood flow were increased sig-nificantly;the improvement of above indexes in observation group was significantly better than control group,with statistical signif-icance(P<0.05). There was no statistical significance in the incidence of ADR between observation group(14.71%)and control group(11.76%)(P>0.05). CONCLUSIONS:For PAD,cilostazol combined with alprostadil can effectively improve hemorheolo-gy indexes,inflammatory factor indexes,oxidation stress indexes and arteriosclerosis indexes with good safety.

Objective To investigate the carcinogeic role of miR-365 in cuntanerous squamous cell carcinoma (cSCC).Methods Normal HaCaT cells were divided into control and irradiation groups,the later was exposed by UVB irradiation (50 J/m2).MicroRNA expression profiles of the two groups were analyzed by microRNA array.The expression variations of miR-365 in HaCaT,A431,Tca8113 and HSC-1 cells were validated by qRT-PCR analysis.The colony-forming and invasion capacities were dectected by colony forming assay and Transwell migration assay in vitro,respectively.HaCaTpre-miR365-2 highly expressing miR-365 was constructed by retroviral vector infection.Tumorigenicity evaluation was carried out by subcutaneously inject of the cells at the right back flank of nude mice.Results There were 30 microRNAs differentially expressed in HaCaT cells after UVB irradiation and miR-365 was one of the most sensitive miRNAs(as high 6.7 times as control).Expression of miR-365 in all the cSCC cell lines A431,Tca8113 and HSC-1 were significantly higher than that in HaCaT cell,in which the maximum was A431 (15.67 ±1.12 times,P ＜ 0.01),and the minimum was TcaS113 (4.72 ± 0.85 times,P ＜ 0.05).Knockdown of miR-365 in cSCC cell lines significantly inhibited the colony forming ability (t =13.68,P ＜ 0.05) and cell migration (t =19.98,P ＜ 0.05) in vitro.HaCaT cells overexpressing miR-365 by transient transfection significantly increased the ability of colony formation (t =7.11,P ＜ 0.05) and cell migration (t =22.03,P ＜0.05) in vitro.In addition,HaCaTpre-miR-365-2 cell line stably expressing miR-365 could successfully establish tumors in nude mice.Conclusions MiR-365 is an oncogene for cutaneous squamous cell carcinoma.

AIM: To observe the realgar induced the apoptosis of eosinophils from bronchoalveolar lavage fluid in asthmatic guinea pigs and investigate the mechanism that realgar treated asthma.METHODS: The morphology of apoptosis of eosinophils was observed by Giemsa staining and electron microscope.The rate of apoptosis of eosinophils was assayed by the flow cytometry.RESULTS: The characteristic changes of the apoptosis in both light microscope and electron microscope were shown after 6 hours treatment of realgar.Flow cytometry showed that the rate of apoptosis of the eosinophils was increased with both increasing realgar concentration and prolonging realgar action time to the cells.CONCLUSION: Realgar promotes the apoptosis of eosinophils from bronchoalveolar lavage fluid in asthmatic guinea pig.Realgar induced the apoptosis of eosinophils is one of the causeses for asthmatic treatment.

Objective To investigate the role of costimulatory molecules CD28/B7 in the pathogenesis of psoriasis. Methods The expression of CD28, CD80 and CD86 was detected in the lesional skin of 22 cases by immunohistochemical technique (ABC), and in the peripheral blood lymphocytes of 17 cases by flow cytometry respectively. As control, normal skin and lymphocytes from peripheral blood of healthy volunteers were also tested. Results The immunohistochemistry study showed that the expression of CD28, CD80 and CD86 in the psoriatic lesions was significantly higher than that in the normal controls (P .05). Conclusion CD28, CD80 and CD86 might play a certain role in the pathogenesis in psoriasis.

Objective To evaluate the expression of GPR30 and Ki-67 in Non-small cell lung cancer(NSCLC) and the relationship between them.The clinicopathological features of GPR30 in NSCLC were also analyzed.The molecular mechanism that estrogen mediated the proliferation of H1299 by activating GPR30 was further studied.Methods The expression of GPR30 and Ki-67 in 80 cases of specimens of NSCLC after surgery was examined using immunohistochemistry method.After 17-β-estradiol(E2) or G-1 added,H1299 cells were counted and the cell cycle distribution was analyzed by flow cytometry.Finally,the activated ERK1/2 and the expression of cyclin D1 and p16 after G-1 treatment in H1299 cells were examined through western blotting.Results Expressions of GPR30 was more in stage Ⅲ or low differentiation tissues or adenocarcinoma (P＜0.05).A positive correlation between GPR30 and Ki-67 was further disclosed (r=0.502,P=0.000).The proliferation of H1299 cells was promoted and more cells entered S-p hase after E2 or G-1 treatment for 3 days,which could be inhibited after G-15 or U0126 pre-treatment for 2 hours.We further discovered that the activated ERK1/2 and cyclin D1 expression increased after G-1 treatment,which was blocked after G-15 or U0126 pre-treatment for 2 hours.The change of p16 was on the opposite.Conclusion A positive correlation existed between GPR30 and Ki-67.GPR30-EGFR-MAPKs signaling transduction pathway was involved in the estrogen-induced proliferation of NSCLC cells.Blocking GPR30 signaling pathway may be a promising new strategy for NSCLC treatments.

With the aging of population, cerebral small vessel disease has attracted more and more attention. A growing body of literature has confirmed that retinal vascular changes can be used as a potential marker for the prediction of cerebral small vessel disease. The retina is recognized as a window into cerebrovascular and systemic vascular conditions. Combining traditional fundus photograph and fundus fluorescein angiography with optical coherence tomography angiography, the retinal vascular system of patients with cerebral small vessel disease can be comprehensively analyzed. This paper summarizes and analyzes the application of retinal angiography technology in different image types of cerebral small vessel disease and makes a review, in order to provide reference for the early diagnosis and prevention of cerebral small vessel disease.

Objective To evaluate the correlation between impaired fasting glucose and the extent and severity of angiographic coronary artery disease( CAD ) in patients who underwent coronary angiography.Methods A total of 630 consecutivc patients who underwent coronary angiography were selected in the stndy.The extent and severity of angiographic CAD were diagnosed based on the followings:whether or not with CAD diagnosis by angiography,the number of diseased vessels,the CAD Gensini cumulative index.According to fasting plasma glucose ( FPG),all patients were divided into three group,group 1 ( FPG ＜5.6 mmol/L),group 2 ( 5.6 mmol/L ≤ FPC ＜ 6.1 mmol/L) and group 3 ( 6.1 mmol/L ≤ FPG ＜ 7.0mmol/L).The CHD risk factors and the lesion degree of coronary arteries were compared among three groups.The relation of FPG and CAD were analyzed by univariate and multivariate analyses.Results The incidence of CH and,the CAD Gensini cumulative index and the incidence of mult-vessel lesions were significantly different among the three subgroups ( all P ＜ 0.05 ).After adjusting other inffluencing factors,there were significantly positive correlation between the number of diseased vessels and the CAD Gensini cumulative index and FPG( P ＜0.05).The FPG had significant correlation with the diagnosis or not of CAD by angiography( OR =3.042,95％ CI:2.589 -6.275,P ＜0.01).Conclusions In prediabetic period,the extent and severity of angiographic coronary artery disease have significant correlations with the impaired fasting glucose,and the extent and severity can increase along with the increasing FPG.

Ibuprofen/ethyl-cellulose (EC)-polyvinylpyrrolidone (PVP) sustained-release composite particles were prepared by using supercritical CO2 anti-solvent technology. With drug loading as the main evaluation index, orthogonal experimental design was used to optimize the preparation process of EC-PVP/ibuprofen composite particles. The experiments such as encapsulation efficiency, particle size distribution, electron microscope analysis, infrared spectrum (IR), differential scanning calorimetry (DSC) and in vitro dissolution were used to analyze the optimal process combination. The orthogonal experimental optimization process conditions were set as follows: crystallization temperature 40 degrees C, crystallization pressure 12 MPa, PVP concentration 4 mgmL(-1), and CO2 velocity 3.5 Lmin(-1). Under the optimal conditions, the drug loading and encapsulation efficiency of ibuprofen/EC-PVP composite particles were 12.14% and 52.21%, and the average particle size of the particles was 27.621 microm. IR and DSC analysis showed that PVP might complex with EC. The experiments of in vitro dissolution showed that ibuprofen/EC-PVP composite particles had good sustained-release effect. Experiment results showed that, ibuprofen/EC-PVP sustained-release composite particles can be prepared by supercritical CO2 anti-solvent technology.

Objective To evaluate the efficacy and safety of ureteroscopic endo-incision and drainage in the treatment of renal cysts.Methods Thirty cases(19 females and 11 males)of renal cysts(1 1 parapelvie cysts,15 simple cysts.and 4 multiple cysts)were treated with ureteroscopic endo-incision and drainage.The renal cysts were located in renal pelvis,and opened and decompressed by electrotme with ureteroscope.Double J stent was placed afterwards.Urinary and blood biochemistry were tested post-operatively.Results All the operations were successfully completed with no severe complication.The cyst managing time ranged from 15 tO 45 min.Urinary biochemistry(urinary protein and glucose)turned normal 1 2 days after the surgery.Patients were followed up for 3 to 9 months.Renal cysts disappeared in 24 cases,diminished in 4 cases,and recurred in 2 cases.Conclusion Application of ureteroscopic technique in the treatment of renal cyst is safe,effective and minimally invasive.