Objective To investigate the role of Akt signal pathway on the expression of monocyte chemoattractant protein-1 ( MCP-1 ) and nuclear transcription factor-κB (NF-κB) in renal tubular epithelial cells (HK-2) stimulated by albumin and to explore the mechanisms of action. Method The HK-2 cells were incubated in the presence of albumin (5,15,30 mg/mL) with or without Ly294002 (an inhibitor of Akt). Expression of mRNA was analyzed by reverse transcription-polymerase chain reaction (RT-PCR).Expression of Akt and protein MCP-1 were assessed by Western blot. Electrophoretic mobility shift assay (EMSA) was used to detect the activation of NF-κB. q-test was used to evaluate the differences in means between groups. Results Compared with control group, the expression of MCP-1 mRNA remarkly increased. [Control group: 0.233 ±0.01; BSA(5 mg/mL) group: 0.285 ±0.04; BSA( 15 mg/mL) group:0.387 ± 0.02; BSA ( 30 mg/mL) group: 0.473 ± 0.05; BSA ( 30 mg/mL) + Ly294002 group: 0. 325 ±0.05, P ＜ 0.05 ]. The expression of MCP-1 protein in renal interstitum of operation group were remarkly increased too. [ Control group: 100 ± 15.1; BSA ( 5 mg/mL) group: 148 ± 19.3; BSA ( 15 mg/mL) group: 176±20.7; BSA(30 mg/mL) group: 263 ± 18.1; BSA(30 mg/mL) + Ly294002 group: 175 ± 18.0, P ＜0.05 ]. Albumin stimulated the expression of MCP-1mRNA and protein in a dose-dependent manner. Albumin remarkably increased the activity of NF-κB. Albumin enhanced the expression of Akt. Ly294002 inhibited albumin-induced the expression of NF-κB and partially decreased the level of MCP-1. Apositive correlation was noted between NF-κB activation and MCP-1 expression( r = 0.68 ,P ＜ 0.01 ). Conclusions Albumin-induces MCP-1 and NF-κB production via Akt signal pathway in renal tubular epithelial cells.

AIM:To investigate the findings of the eyes which were examined preoperatively by three mirror contact lens before the implantation of implantable collamer lens ( ICL) . To analysis the retinal pathological changes and to explore the clinical analysis of early diagnosis and treatment in retinopathy on fundus examination before operation.
METHODS:The retrospective case series study included 127 eyes of 64 patients who underwent phakic intraocular lens implantation were received the fundus examination by three mirror from April 2011 to April 2012 in our hospital. The age, refractive diopter, the findings of Goldmann three mirror examination and the condition of retinal photocoagulation were analysed and concluded.RESULTS:A total of 34 eyes (26. 8%) out of all 127 eyes ( 64 cases ) were found to have peripheral retinal pathological changes. Eight eyes ( 6. 3%) with retinal holes, 15 eyes(11. 8%) with retinal lattice degeneration, 5 eyes ( 3.9%) with retina cream degeneration, 3 eyes (2.4%)with retinal paving stone degeneration,2 eyes with vitreoretinal adhesion and traction, 1 eye ( 0. 8%) with retinal hemorrhage. Twenty-five cases were given retinal photocoagulation and then received the ICL implantation after 3mo. The follow - up time was 1a. No retinal detachment happened.
CONCLUSION: Phakic before intraocular lens implantation for fundus examination by three mirror is contributed to find the peripheral retinal pathological changes and abnormity. And make the appropriate treatment before operation for improving the security of operation, it can also give help to the postoperative follow-up of the fundus of these patients.

Objective To compare the anticoagulation effect of regional citrate and heparin in patients with sustained low-efficiency hemodialysis (SLED).Method This study was conducted in the teaching hospital of Sichuan University between November 2011 and January 2013.Sixty-three patients suffering from acute kidney injury or end-stage renal diseases (ESRD) were enrolled and further randomized to 2 groups:citrate and heparin anticoagulation treatment groups in SLED.SLED was conducted by Fresenius 4008sARrTplus dialyzer for 8 hours each session,and blood flow was set at 150 ml/min.Prothrombin time (PT),activated partial thromboplastin time (APTT) and platelet (PLT) count were analyzed.Result Sixty-three patients underwent 118 sessions of SLED.Among them,59 patients (93.7％) was discharged after treatment or converted to outpatient intermittent hemodialysis,and 4 patients died of multiple organ failure during hospitalization.Compared with that in the citrate group,both PT and APTT in heparin group was significantly higher [PT:(15.5 ± 2.0) s vs (12.3 ± 2.7) s,P ＜ 0.001 ; APTF:(56.0 ± 10.9) s vs (32.8 ± 6.1) s,P ＜ 0.001 ; respectively] at 2 h during SLED.However,the PT and APTT levels in heparin group decreased afterwards and were similar with those in the citrate groups at 5 h during treatment.There is no difference on PLT counts between these two groups after treatment.Conclusion The anticoagulation effect of regional citrate and heparin was similar in patients when receiving SLED.Regional citrate may be an alternative anticoagulant approach for the patients at high risk of bleeding who require the treatment of SLED.

Objective:The abstraction of characteristics in CT perfusion image is crucial in the clinical diagnosis of brain infarction and cerebral tumor.Methods:After describing the relevant parameters of CT cerebral perfusion imaging,such as cerebral blood flow (CBF),cerebral blood volume (CBV),the mean transition time (MTT) and the permeability surface (PS).With using Visual C ++ programming and CT scan images sequence obtained,the time-density curves of the brain tumor region were visualized.The more accurate hemodynamic parameters were calculated through an improved algorithm basing on the deconvolution and measuring method of the length,angle,area and other parameters.Conclusion:The quantitative analysis of feature parameter is of great benefit to clinical doctor in making timely diagnosis and treatment of brain tumor.

Objective To study transmission characteristics of Acinetobacter baumannii (A.baumannii )clone and clinical features of infected patients in a respiratory intensive care unit (RICU),so as to guide the effective pre-vention and control of A.baumannii transmission.Methods 40 A.baumannii strains isolated from RICU patients were performed homology analysis by pulsed-field gel electrophoresis (PFGE)and cluster analysis,relationship of strains was determined,antimicrobial resistance and clinical data were analyzed.Results 40 A.baumannii strains were divided into 11 genotypes(A-K),the main epidemic strains were type A,B and E.The resistant rate to imipen-em was the lowest(70.00%),the next was levofloxacin (77.50%).The average age of 40 infected patients was 67 years old,the average length of hospital stay was 41 days,12 patients died because of invalid treatment.There was overlapping hospitalization among patients infected with type A and E strains;among patients infected with type B strain,there was no overlapping hospitalization among the last 6 and first 6 infected patients.Conclusion The main epidemic strains of A.baumannii were type A,B and E,antimicrobial resistant rate is high;the infected patients are with high average age and long length of hospital stay.It is important to reduce the transmission of A.baumannii through rational use of antimicrobial agents,strict aseptic operation,and intensified disinfection and sterilization of hospital environment and medical devices.

Objective To analysis of the thyroid hormone test results of Abbott Architect ci16200 automatic biochemical-im-mune analyzer (Abbott system) and Roche Cobas e601 automated immunoassay analyzer (Roche system) .Methods The thyroid hormone(including T4 ,FT4 ,T3 ,FT3 ,TSH ) levels of 93 cases of serum samples were respectively detected by Abbott system (CMIA) and Roche system (ECLIA) ,and the results were analyzed .Results The thyroid hormone test results of the two systems had a good correlation ,and the coefficients of T4 ,FT4 ,T3 ,FT3 ,and TSH were 0 .960 ,0 .962 ,0 .976 ,0 .900 ,and 0 .999(P<0 .01) . However ,there were significant difference of the detection results of the two systems(P<0 .05) .Conclusion The thyroid hormone test results of Abbott system and Roche system are not comparable .

China ; Dust ; analysis ; Female ; Humans ; Male ; Manufactured Materials ; Occupational Exposure ; prevention & control ; statistics & numerical data ; Occupational Health

Adolescent ; Adult ; Aged ; Aged, 80 and over ; China ; Female ; Humans ; Male ; Middle Aged ; Occupational Exposure ; statistics & numerical data ; Pesticides ; Rural Population ; statistics & numerical data ; Sampling Studies ; Young Adult

Animals ; Arrestins ; metabolism ; Liver ; pathology ; Liver Cirrhosis, Experimental ; metabolism ; pathology ; Male ; Mice ; Mice, Inbred ICR ; beta-Arrestins

Adult ; Diagnosis, Differential ; Dyspepsia ; blood ; Female ; Humans ; Male ; Medicine, Chinese Traditional ; Middle Aged ; Motilin ; blood