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Objective:To investigate the effects of IL-18BP blockade on apoptosis of synovial cell in IL-18 induced Collagen-induced-arthritis(CIA) in mice and its possible mechanism.Methods: CIA mice were established by freund′s complete adjuvant,and divided into 5 groups:normal group,CIA model group,IL-18-CIA group,MTX group and IL-18BP group,each for 10,total 50 mice.The expression of Fas and FasL in the synovial tissue of the left posterior ankle joint taken from each group were detected by immunohistochemistry analysis.Results: IL-18BP group compared with the model group,the mice of joint swelling was inhibited,the expression level of Fas and FasL increased significantly,the difference was statistically significant (P<0.01);IL-18BP group has a significant curative effect and basically recovered to normal level(P<0.05).Conclusion: IL-18BP can promote the apoptosis of synoviocytes by regulating the expression of apoptosis genes Fas and FasL,which is helpful for the treatment of rheumatoid arthritis.
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Objective To investigate the diagnostic value and monitoring application of anti-phospholipase A2 receptor antibodies ( PLA2R ) in patients with idiopathic membranous nephropathy ( IMN) .Methods A retrospective study was used .48 patients were diagnosed as idiopathic membranous nephropathy by puncturing kidney from January of 2013 to June of 2014 in the Hospital of Liaoning Traditional Chinese Medical University and Shengjing Hospital of China Medical University were included. 43 patients were diagnosed as non-idiopathic membranous nephropathy ( NIMN ).35 healthy volunteers were selected as control groups.Serum PLA2R were detected by indirect immunofluorescence.The intensity of antibodies fluorescence and the level of urine protein in 24 hours(24 h PRO) ,serum UREA ,serum CYSC, serum UA,GFR were compared in each groups.Measurement data was shown as mean ±standard deviation;Count data was shown as frequency or composition, t test andχ2 test were used as statistical method.Results (1) Among 48 cases with IMN,37 cases showed positive PLA2R (positive rate 77.08%).All of cases were negative in NIMN group.The sensitivity and the specificity of serum PLA2R were 77.08%and 100%.(2) Compared with control groups, the levels of UREA, CYSC and UA were found statistically significant differences in patients with IMN ( P 0.05 ) . ( 3 ) Positive correlation were found between 24 h PRO(r=0.877,P=0.00),serum UA (r=0.766,P=0.00 ) with the level of PLA2R antibodies fluorescence intensity.( 4 ) There were no correlation between serum PLA2R antibody with IMN pathology aging (r=0.087,0.194,0.182;P=0.598,0.399,0.667).PLA2R positive rate(Ⅰstage:37.50%,Ⅱstage:84.85%, Ⅲstage 85.71%) may increases with the increasing of illness severity.Conclusion Serum PLA2R antibody would be a new laboratory diagnosis standard in patients with IMN.(Chin J Lab Med, 2015, 38:595-599 ) Objective To investigate the diagnostic value and monitoring application of anti-phospholipase A2 receptor antibodies ( PLA2R ) in patients with idiopathic membranous nephropathy ( IMN) .Methods A retrospective study was used .48 patients were diagnosed as idiopathic membranous nephropathy by puncturing kidney from January of 2013 to June of 2014 in the Hospital of Liaoning Traditional Chinese Medical University and Shengjing Hospital of China Medical University were included. 43 patients were diagnosed as non-idiopathic membranous nephropathy ( NIMN ).35 healthy volunteers were selected as control groups.Serum PLA2R were detected by indirect immunofluorescence.The intensity of antibodies fluorescence and the level of urine protein in 24 hours(24 h PRO) ,serum UREA ,serum CYSC, serum UA,GFR were compared in each groups.Measurement data was shown as mean ±standard deviation;Count data was shown as frequency or composition, t test andχ2 test were used as statistical method.Results (1) Among 48 cases with IMN,37 cases showed positive PLA2R (positive rate 77.08%).All of cases were negative in NIMN group.The sensitivity and the specificity of serum PLA2R were 77.08%and 100%.(2) Compared with control groups, the levels of UREA, CYSC and UA were found statistically significant differences in patients with IMN ( P 0.05 ) . ( 3 ) Positive correlation were found between 24 h PRO(r=0.877,P=0.00),serum UA (r=0.766,P=0.00 ) with the level of PLA2R antibodies fluorescence intensity.( 4 ) There were no correlation between serum PLA2R antibody with IMN pathology aging (r=0.087,0.194,0.182;P=0.598,0.399,0.667).PLA2R positive rate(Ⅰstage:37.50%,Ⅱstage:84.85%, Ⅲstage 85.71%) may increases with the increasing of illness severity.Conclusion Serum PLA2R antibody would be a new laboratory diagnosis standard in patients with IMN.
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Objective To explore the relationship between physical activity ( PA) in college students and self?efficacy,and provide guarantee for improving health education in colleges. Methods International physical ac?tivity questionnaire( IPAQ) ,scales of physical behavior,scales of stage of change in physical exercise behavior,and scales of self?efficacy were used to test 504 students from some of colleges in Zhejiang province. Results Signifi?cantly more males (38.52%) than females (27.27%) were in the high activity tertile (P<0.01); the amount of PA per week in males and females were (4608±872.07)MET and(4361±674.03)MET(P<0.01); the scores of males and females were (3.32±0.44) and(3.04±0.36),(P<0.01). The number of males (35.5%) in maintenance period and period of action is greater than that of females (28.9%). Males had higher self?efficacy and more scores of behavior than females (P<0.05) . There were significant characteristics of PA in their self?efficacy,score of be?havior and stages of change( F=18.38, F=15.08, F=34.71, P<0.01),and a significant correlation between PA and self?efficacy,stages of change and physical exercise behavior ( r=0.336, r=0.36, r=0.46, P<0.01).Conclu?sion Self?efficacy may have important effect on the level of PA. Stages of change and scores of behavior may ex?plain difference of PA between males and females.
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BACKGROUND: Matrix metalloproteinase (MMP) degrades extracellular matrix, which is a necessity of joint destruction in rheumatoid arthritis patients. MMP-2 and MMP-9 can evaluate rheumatoid arthritis and serve as an index to predict progressive destruction of the joint. OBJECTIVE: To observe heterogenous allogeneic umbilical cord blood stem cell (UBSC) transplantation on MMP-2 and MMP-9 expression in the spleen of mice with type Ⅱ collagen-induced arthritis. METHODS: Fetus cord blood was sterilely obtained and cord blood stem cells were separated. The C57BL/6(H-2b) mice were assigned to five groups (n=10). Except normal control group, models of collagen-induced arthritis were established using complete Freund's adjuvant + type Ⅱ collagen. Mice from the methopterin group were intragastrically administered methopterin suspension 0.017 5 g/kg, once every 5 days. Other groups used caudal vein injection. Mice from the model and normal control groups were injected with saline. Mice from the mono-UBSCs group and double-UBSCs group were injected with 2×106/kg UBSCs from one and two parents. At 42 days following injection, animals were sacrificed and the ankle joint was obtained for histopathological detection. MMP-2 and MMP-9 mRNA expression in the spleen was examined using reverse transcription-polymerase chain reaction. RESULTS AND CONCLUSION: Double-UBSC transplantation could significantly inhibit inflammatory cell infiltration in synovial tissue of mice with type Ⅱ collagen-induced arthritis, repaired impaired cartilage tissue. The repair effect was better than that in methopterin group and mono-UBSCs group. MMP-2 and MMP-9 mRNA expression in the spleen was significantly lower in the double-UBSCs group than the mono-UBSCs group (P < 0.01). These suggest that heterogenous allogeneic double-UBSCs transplantation participated in pathological changes in rheumatoid arthritis cartilage and in synthesis of cartilage extracellular matrix and effectively treated rheumatoid arthritis by regulating MMP-2 and MMP-9 mRNA expression.
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Objective To compare the differences in physical activity (PA), self-efficacy, stages of change and physical exercise behaviour in college students. Methods International physical activivty questionnaire( IPAQ), scales of self-efficacy, questionnaire of stage of change in physical exercise behaviour, and scales of physical behaviour were used to make a study on college students from Zhejiang province. Results The rate of males (40.43%) was signficant higher than that of females (26.09%) MET in the high activity tertile. There was significantly more energy expenditure in males (( 3462.79 ± 976.31 ) MET) than in females (( 3118.63 ±944.29 ) MET) (P ＜ 0.05 ). The rate of males (44.68 % ) was more than females (25.00%) in maintainanee period and period of action. PA characteristics were shown significant defferences in different stages (F= 31. 380, F=6.012, P ＜ 0.01 ). Characteristics in stages of change were shown high in behaviour score (F= 13.071, F= 7. 461,P ＜0. 01 ). Four factors as attitude,cognitive controls, behavior disposition and self-efficacy in males were entered into regression model of MET( t = 2.138 ～ 3. 789, P ＜ 0.05 ), while in females only the factor of behaviour attitude was entered. Conclusion There is significant difference in PA, stages of change, behaviour characteristics, and self-efficacy between male and female college students.
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Objective The college and university students' physical exercise behavior scale has been de-veloped. Methods Baaed on the theory of planning behavior,after investigation and analysis,a questionnaire was made to test 1180 students from some colleges and universities in Changjiang Delta area. Its reliability and validity was tested,and confirmatory factor analysis was carried out. Results The scale consists of 4 factors: behavioral intention,subjective criterion,cognitive behavior,and integrative attitude. Its retest reliability was 0.920, correla-tion coefficient of the factors between 0.732 and 0.854 ,and the total scale Cronbach α 0.931. The correlated co-efficients between subseales and total scales range 0.455～0.785 ;the IFI, CFI,and NFI fit indices of the four di-mensions were over 0.9 ;RMSEA 0.042. Conclusion The reliability and validity of the scale are suitable as an effective tool to test university students' sports exercise behavior.
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Objective To clarify the mechanism of lipoprotein (a) ［Lp (a)］ metabolic disorder in patients receiving maintenance hemodialysis (MHD), and to offer theoretical basis for seeking for modus operandi of disorder control.Methods The apolipoprotein (a)［apo(a)］ isoforms were identified by high-resolution SDS-agarose gel electrophoretic method followed by immunobloting in 61 patients receiving maintenance hemodialysis (MHD group), 51 patients with end-stage renal disease (ESRD group) and 62 healthy controls (healthy control group). The influential factors for elevated serum level of lipoprotein (a) in MHD group were analyzed by applying statistical method.Results No statistical difference of Lp (a) median level was found between MHD group and ESRD group in LWM isoforms, but their level was significantly higher than that of healthy control group. In MHD group, the concentrations of serum creatine(Crea),cystatin C(CysC) and C-reactive protein(CRP) were significantly higher (P<0.05), while the concentrations of albumin(Alb) and Hb were lower than those of healthy control group (P<0.05). The concentration of LDL-C had no significant difference between MHD group and healthy control group. Compared with those of ESRD group, the levels of Crea, CRP and CysC were not significantly increased (P<0.05) in MHD group. There was no difference in the level of Lp (a) between the MHD and the ESRD patients with LMW-apo (a) isoforms (P>0.05), but compared with healthy control group, the serum levels of Lp (a) in the two groups were remarkably increased (P<0.05). The level of Lp (a) with LMW-apo (a) were significantly correlated with Alb and CysC respectively (P<0.05). The level of Lp (a) with HMW-apo (a) of MHD patients were higher than that of ESRD patients (P<0.05). The patients in the two groups had higher levels of Lp (a) as compared with those of healthy control group. The positive correlation of Lp (a) level with CRP and CysC was observed in patients with HMW-apo (a) (P<0.01). As MHD group as concerned, Lp (a) level was associated with Alb and CysC (P<0.01); regression analysis showed that apo (a) isoforms, Alb and CysC were listed in the regression equation, and the determinate coefficient (r2) was 0.348, in which the respective r2 of apo (a) isoforms, Alb and CysC was 0.121, 0.178 and 0.049.Conclusion Multiple factors may contribute to the high level of Lp (a) in MHD patients. Moreover, Lp (a) with different isoforms of apo (a) had different influencing factors. The corresponding therapeutic measure should be taken according to apo (a) isoforms in order to acquire better therapeutic efficacy for MHD patients.