Objective To investigate the correlation of serum sFasL level with carotid arterial intima- media thickness(IMT) and some known markers of inflammation, nutritional status in uremic patients with cardiovascular disease(CVD). Methods 134 uremic patients on hemodialysis were divided into two groups, CVD group (n=103) and non-CVD group (n=31). The serum level of sFasL, C-reactive protein (CRP), IL-6, TNF-? and albumin were measured by enzyme-linked immunosorbent assays (ELISA). The expression of Fas and FasL in radial arterial endothelial cells were observed both by immuohistochemical stain and by reverse transcription- polymerase chain reaction (RT-PCR). The Carotid arterial IMTs were measured by Color doppler ultrasonography. Results Compared with the non-CVD group, CVD group showed significantly increased serum sFasL, CRP, IL-6, and TNF-?, and decreased serum albumin(P

Background Posterior capsular opacification (PCO) is a primary complication after extracapsular cataract extraction.The mechanism of PCO is associated with proliferation,migration and epithelialmesenchymal transition (EMT) of human lens epithelial cells (LECs).To explore the target treatment of PCO is very important.Objective This study was to investigate the biological effects of second mitochondria-derived activator of caspases (Smac) on the proliferation and apoptosis of LECs.Methods Human LECs line (HLE-B3) and Smac-overexpressed LECs line were cultured,and the cells were transfected using small interfering RNA (siRNA)-Smac3 plasmid with green fluorescent protein (GFP) for 24 hours.Different concentration of transforming growth factor-β2 (TGF-β2) (5,10,20 and 50 μg/ml) or 200 μmol/L H2O2 were added respectively into the culture medium to establish PCO model and oxidative stress model.Cell counting kit-8 (CCK-8) assay was used to compare the cell proliferative activity among PBS group,TGF-β2 group and Smac-hyperexpression +TGF-β2 group.Flow cytometry was used to evaluate the apoptotic rate of the PBS group,H2 O2 group and siRNA-Smac+H2 O2 group.The expressions of Smac,caspase-3 and proliferating cell nuclear antigen (PCNA) mRNA and their proteins in the cells were detected by real-time quantitative PCR (RT-PCR) and Western blot.Results The GFP+ cells were≥ 80％ 12 hours after siRNA-Smac3 transfection,with the optimal plasmid of siRNA-Smac3.GFP+ cell rate was (72.32 ± 2.31)％ in the siRNA-Smac3 transfection group,which was significantly higher than that in the blank plasmid group ([4.91 ±0.24] ％) (t=116.342,P＜0.001).The relevant expression levels of Smac was 35.21 ±4.11 in the Smachyperexpression group,and that in the blank plasmid group was 15.24±2.48,with a significant difference between them (t =215.47,P＜0.05).The cell viability of 20 ng/ml TGF-β2 affected PBS group,TGF-β2 group and Smachyperepression+TGF-β2 group was (98.4 ± 1.7) ％,(98.9 ± 0.1) ％ and (64.2 ± 3.1) ％,and the cell viability of Smac-hyperepression+TGF-β2 group was significantly lower in the Smac-hyperepression+TGF-β2 group than that in the TGF-β2 group (P＜0.05).The apoptotic rate in the PBS group,H2 O2 group and siRNA-Smac+H2 O2 group were (2.9 ± 1.2) ％,(45.1 ±4.5) ％ and (27.5 ± 1.8) ％,and the apoptotic rate was evidently lower in the siRNA-Smac +H2O2 group than that in the H2O2 group (P＜0.05).RT-PCR results showed that the expression levels of caspase-3 mRNA in PBS group,H2 O2 group and siRNA-Smac + H2 O2 group were 0.321 ± 0.103,0.715 ± 0.112 and 0.479 ±0.209,respectively.Compared with the H2 O2 group,the relative expression level of caspase-3 mRNA in siRNA-Smac+ H2O2 group was significantly decreased,the difference was statistically significant (P＜ 0.05).The PCNA mRNA expression levels in PBS group,TGF-β2 group and Smac-hyperepression+TGF-β2 group were 0.299±0.013,0.645± 0.102 and 0.490±0.209,respectively.Western blot results showed that the relative expression of caspase-3 protein in siRNA-Smac+H2O2 group and H2O2 group was 0.712±0.012 and 0.973±0.051,with significant difference between the two groups (t =132.52,P＜0.05).The relative expression of PCNA protein in Smac-hyperepression+TGF-β2 group was 0.782±0.212,which was lower than 1.126±0.251 in the TGF-β2 group (P＜0.05).Conclusions Smac may prevent and treat PCO by inhibiting the proliferation and promoting apoptosis of human LECs.

Objective To probe imaging manifestations of bronchogenic cysts,as that to improve the knowledge of this disease.Methods Imaging features of congenital bronchial cyst in 32 cases confirmed by operation and pathology were analyzed.Results 4 cases of cyst localized in mediastinum ,all were liquid cyst.28 cases of cyst localized in lungs,aqmong them,22 cases were air-liquid cyst and 6 cases were air cyst,the diameter of lesions was 1~10 cm,there were 2 cases with pyothorax,4 cases with pulmonary maldevelopment,one case with brochio-pleural fistula.The cysts appeared as round or similar round,the walls of cyst was thin.The wall of cyst was obscure and there was infiltrating shadow around cysts when in company with infection.Conclusion X-ray and CT are very important in diagnosing congenital bronchial cysts,CT scan is of very help in diagnosing the compley cysts.

Objective To observe the possible anti-inflammatory and anti-angiogenesis effects of iguratimodon human synovial fibroblast cell line MH7A derived from patients with rheumatoid arthritis (RA).Methods MH7A cells were stimulated with interleukin (IL)-1β and treated simult aneously or sequenti-ally with different concentrations of iguratimod and methotrexate (MTX).Release of vascular endothelial growth factor (VEGF), endostatin (ES) and tumour necrosis factor-α (TNF-α) was quantified by enzyme linked immunosorbent assay (ELISA).The statistics software SPSS 13.0 was used for statistical analyses.The experimental data were analyzed in terms of variance analysis and LSD test.In all cases, a P value lower than 0.05 was considered significant.Results The concentrations of VEGF, ES and TNF-α of the control group were (57±98) pg/ml, (924±39) pg/ml, (16.40±6.08) pg/ml respectively, while those of the experimental group were (1 155±177) pg/ml, (295±35) pg/ml and (36.90±3.54) pg/ml respectively.The differences of VEGF (t=9.092, P＜0.01) and ES (t=19.685, P＜0.01) between the control group and the experimental group was statistically significant.There was significant difference in the levels of TNF-α between the two groups (t=2.495, P＜0.05).VEGF of the iguratimod groups was (640±127) pg/ml in the iguratimod group (100 μmol/L), (787±172) pg/ml in the iguratimod group (25 μmol/L), and (776±99) pg/ml in the iguratimod group (6.25 μmol/L).VEGF of the MTX groups was (1 322±264) pg/ml in the MTX group (100 μmol/L), (1 071±63) pg/ml in the MTX group (25 μmol/L), and (863±70) pg/ml in the MTX group (6.25 μmol/L).All concentration of the iguratimod groups could effectively reduce the expression of VEGF in MH7A cells.Compared with the experimental group, the difference was statistically significant (100 μmol/L group: t=4.264, P＜0.01;25 μmol/L group: t=3.045, P＜0.01;6.25 μmol/L group: t =3.132, P ＜0.01).MTX (6.25 μ mol/L) could reduce the expression of VEGF in MH7A cells.Compared with the experimental group, the difference was statistically significant (t=2.415,P＜0.05).ES of the iguratimod groups was (979±30) pg/ml in the iguratimod group (100 μmol/L), (842±14)pg/ml in the iguratimod group (25 μmol/L), and (485 ±72) pg/ml in the iguratimod group (6.25 μmol/L).ES of the MTX group was (934±23) pg/ml in the MTX (100 μmol/L) group, (825±28) pg/ml in the MTX group (25 μmol/L), and (772 ±44) pg/ml in the MTX group (6.25 μmol/L).Both iguratimod and MTX groups effectively increased the expression of ES in MH7A cells.Compared with the experimental group, the difference was statistically significant (100 μmol/L group: t=21.387, P＜0.01;25 μmol/L group: t=17.122,P＜0.01;6.25 μmol/L group: t=5.929, P＜0.01).The expression of ES of the iguratimod group (100 μmol/L)and iguratimod group(25 μmol/L) was higher than that of the iguratimod group (6.25 μmol/L).The difference was statistical significant(100 μmol/L group: 6.25 μmol/L group was t=15.458,P＜0.01;100 μmol/L group: 6.25 μ mol/L group was t=11.193, P＜0.01).The expression of ES of the iguratimod group(6.25 μmol/L) was lower than that of the MTX group (6.25 μmol/L).The difference was statistically significant (t=9.001, P＜0.01).TNF-α was (4.73 ±1.15) pg/ml in the iguratimod group (100 μmol/L), (4.40±2.65) pg/ml in the iguratimod group (25 μmol/L), and (4.40±0.10) pg/ml in the iguratimod group (6.25 μmol/L).TNF-α of the MTX groups were (4.40±3.61) pg/ml in the MTX group (100 μ mol/L), (13.40±16.46) pg/ml in the MTX group (25 μmol/L),and (21.73±16.50) pg/ml of the MTX group (6.25 μmol/L).Both the iguratimod groups and the MTX group (100 μmol/L) effectively reduced the expression of TNF-α in MH7A cells.Compared with the experimental group, the difference was statistically significant(100 μmol/L group: t=3.914, P＜0.01;25 μ mol/Lgroup: t=3.955,P＜0.01;6.25 μ mol/L group: t=3.955, P＜0.01).Theexpression of TNF-α of the MTX groups (100 μ mol/L and 25 μmol/L) reduced significantly.Compared with the experimental group, the difference was statistically significant (100 μmol/L group: t=3.955, P＜0.01;25 μmol/L group: t=2.859, P＜0.05).The expression of TNF-αof the iguratimod group (6.25 μmol/L) was lower than that of the MTX group (6.25 μmol/L).The difference was statistical significant (t=2.359, P＜0.05).Conclusion Iguratimod presents strong anti-inflammatory and antiangiogenesis properties.This study provides insight into the possible molecular mechanisms of iguratimod and suggests that it can be a medication for the treatment of chronic inflammatory diseases like RA.

Objective To observe the effects of iguratimod ( IT) combined with methotrexate ( MTX) in patients with refractory rheumatoid arthritis ( rRA) . Methods Sixty patients with rRA were randomly divided into 2 groups ( n=30 each group) . The cases in treatment group received 50 mg.d-1 of iguratimod and 10 mg of MTX for 16 weeks. The cases in control group were treated by 10-15 mg of MTX. DAS28 was analyzed. Levels of VEGF and endostatin ( ES) were quantified. Results In the treatment group,after 16-week treatment,DAS28,levels of VEGF and ES were (3.0±1.2),(818.9±178.8) pg.mL-1, (337.8±132.6) ng.mL-1,and those in the control group were (5.7±1.9),(1000.2±245.9) pg.mL-1,(253.8±77.8) ng.mL-1,respectively. In the treatment group,DAS28 and VEGF after the treatment were significantly decreased as compared with those before the treatment ( P<0.01) . The decrement was more significant in the treatment group than in the control group ( P<0.01) . At the 16th week of treatment,ES was significantly increased as compared with that before the treatment ( P<0.01) , and there was a significant difference between the treatment group and the control group (P<0.01). Conclusion Iguratimod combined with MTX have a prominent effect on rRA with high safety. The efficacy of IT on RA might be related with decreasing VEGF release,increasing ES production and alleviating synovium angiogenesis.

To adapt to the system reformation of medical laboratory science from five academic years to four academic years and to meet the new professional technology-oriented requirements, the medical laboratory science institute of Guangdong Medical College has carried out a comprehensive reform of curriculum system. This paper has analyzed the current problems in the school medical ex-amination and explored the curriculum system reform from three respects such as adjusting curriculum by restructuring and integrating programs, implementing modular teaching to build its characteristics and strengthening practice teaching.And it has also explored the full assessment mode by optimizing the traditional one-stop assessment.

Objective To observe the long-term visual quality and clinical effect of aspheric diffractive multifocal intraocular lens (IOL) implantation for congenital and developmental cataracts in childhood.Methods A retrospective cohort study on multifocal IOL implantation for congenital and developmental cataracts in childhood (aged 8 to 14 years) was performed in the First Affiliated Hospital of Zhengzhou University from August 2013 to January 2015.The clinical data of 67 eyes from 46 congenital cataract patients who received phacoemulsification with IOL implantation were collected.The AMO (ZMB00) IOL was implanted in 34 eyes of 24 patients in the multifocal IOL group,and Bausch & Lomb (MI60) IOL was implanted in 33 eyes of 22 patients in the monofocal IOL group.The distance,intermediate and near vision acuity were analyzed in 3,6 and 12 months after surgery,including uncorrected visual acuity (UCVA) and best corrected visual acuity (BCVA).The wavefront aberrations,modulation transfer functions (MTF) and stereopsis were obtained with iTrace Analysis System,Optec-6500 Visual Functional Analyzer and Titmus Stereo Test Chart,respectively in 12 months after surgery.The near additional degree,removing glasses rate and myopic shift were compared between the two groups in postoperative 12 months.Results The intermediate and near UCVA in the multifocal IOL group were obviously better than those in the monofocal IOL group 3,6 and 12 months after surgery (intermediate:Z=-3.74,-4.36,-3.66;all at P=0.00.near:Z=-2.67,-2.50,-2.33;all at P＜0.05).There were no significant differences between the two groups in total aberration,high and low order total aberrations,comatic aberration,trefoil aberration,spherical aberration and secondary astigmatism under the 5.0 mm optical zone in 12 months after surgery (all at P＞0.05).The MTFs under the 5.0 mm optical zone and 5,10,15,20,25,30 c/d in the multifocal IOL group were insignificantly lower than those in the monofocal IOL group (all at P＞0.05).In addition,the near stereopsis,near additional degree and myopic shift (AD) were reduced in the multifocal IOL group compared with monofocal IOL group (both at P＜0.05).The glasses removing rate was 93.3％ in the multifocal IOL group,which was significantly higher than 33.3％ in the monofocal IOL group (x2 =23.25,P =0.00).No significant difference in the incidence of posterior capsular opacification was found between the two groups (P＞0.05).The myopic shifting rates were 16.7％ and 83.3％ in the multifocal IOL group and monofocal IOL group,with a significant difference between the two groups (x2=15.02,P=0.00).Conclusions The aspheric multifical IOL implantation can achieve good and stable distance,intermediate and near visual acuities,provide better near stereopsis,reduce postoperative dependence on spectacles and decrease the incidence of myopic shift in child cataract patients.

Objective: To determine the basal metabolic rate (BMR) of young adults aged between 20-29 years old in Changsha. Methods: We recruited volunteers to join in our research project from April to May, 2015. All recruited volunteers must meet the inclusion criteria: aged 20-29 years old, height between 164-180 centimeters in males and 154-167 centimeters in females, in good health condition, and with no habit of regular physical exercise in last year. Finally, 81 qualified volunteers were selected as research objects, including 43 males and 38 females. The BMR, resting lying metabolism rate and resting sitting metabolism rate of the subjects were detected, and the determined BMR was compared with the calculated results: from the adjusted Schofield equation. Results The BMR, resting lying metabolism rate and resting sitting metabolism rate among males were (166.10±22.09), (174.22±24.56), and (179.54±23.35) kJ·m^-2·h^-1, respectively, which were all higher than those among females were (137.70±20.04), (149.79±19.25), and (167.78±26.02) kJ·m^-2·h^-1, respectively, (P<0.001). The BMR of males and females calculated from the adjusted Schofield equation were (160.83±3.93), and (140.29±4.18) kJ·m^-2·h^-1, respectively, and there was no significantly statistical difference found between the determined BMR and the calculated results from Schofield equation (adjusted) classified by sex, all P values >0.05. Conclusion The BMR of young adults aged 20-29 years old in Changsha was in the national average level, and the adjusted Schofield equation displayed fine accuracy in predicting BMR of young adults aged 20-29 years old in Changsha.

Objective: To evaluate the vitamin D nutritional status in Chinese women of child-bearing age by analyzing serum 25-hydroxyvitamin D level in 2010-2012. Methods: Data were obtained from the China Nutrition and Health Survey in 2010-2012. Using cluster sampling and proportional stratified random sampling, 1 514 women of child-bearing age (18-44 years old) from 34 metropolis and 41 small and medium-sized cities were included in this study. Demographic information was collected by questionnaire and serum 25-hydroxyvitamin D concentration was determined by radioimmunoassay, in accordance with the 2010 Institute of Medicine of the National Academies standards. We compared differences in vitamin D levels, specifically serious deficiency, lack of deficiency, insufficiency, and excess. Results: The overall serum 25-hydroxyvitamin D level of Chinese urban women of child-bearing age (P₅₀ (P₂₅-P₇₅)) was 20.1 (15.1-26.3) ng/ml; minorities had a significantly higher serum 25-hydroxyvitamin D level of 22.0 (15.9-27.5) ng/ml compared with women of Han nationality (19.8 (14.9-26.2) ng/ml) (χ²=7.02, P=0.008). The proportions of women with serious deficiency, lack of deficiency, insufficiency, and excess vitamin D were 11.6% (n=175), 37.9% (n=574), 35.1% (n=531), and 0.3% (n=5), respectively. Only 15.1% (n=229) of women of child-bearing age had normal vitamin D nutritional status. No significant differences in vitamin D nutritional status were observed according to age, body mass index, city, nationality, educational level, marital status, or household income per capita (P>0.05). Conclusion Most Chinese urban women of child-bearing age have poor vitamin D levels and require vitamin D supplementation.

Objective: To assess the vitamin A nutritional status of the Chinese urban elderly population by analyzing serum retinol level in 2010-2012. Methods: Data were collected from the Chinese National Nutrition and Health Survey in 2010-2012. Using the multi-stage stratified cluster sampling method, serum samples from elderly residents aged ≥60 years old were obtained from 34 metropolis and 41 middle-sized and small cities. Demographic data were collected using a questionnaire survey. The serum retinol concentration was determined by high-performance liquid chromatography. Vitamin A deficiency (VAD) was determined using the World Health Organization guidelines. A total of 3 200 elderly residents were included in the study. The serum retinol levels and prevalence of VAD and marginal VAD were also compared. Results: The serum retinol concentration (P₅₀(P₂₅-P₇₅)) of Chinese urban elderly residents was 1.83 (1.37-2.39) μmoL/L. Compared with middle-sized and small cities (1.91 (1.47-2.48) μmol/L), the retinol level of senior citizens in metropolis (1.70 (1.25-2.25) μmol/L) was significantly lower (P<0.001). The serum retinol levels of elderly male (1.89 (1.37-2.47) μmoL/L) was significantly higher than that of female (1.80 (1.36-2.28) μmoL/L) (P=0.001). The serum retinol concentration was 1.87 (1.42-2.43), 1.78 (1.32-2.33), and 1.71 (1.24-2.24) μmol/L for 60-69, 70-79, and ≥80 years olds, respectively. The retinol level in elderly people ≥70 years olds was significantly lower than that of 60-69 years olds (P<0.001). The overall prevalence of VAD among Chinese urban elderly residents was 4.22% (135/3 200); 6.00% (81/1 350) for metropolis residents and 2.92% (54/1 850) for middle-sized and small city residents. The overall marginal VAD rate of Chinese urban elderly residents was 8.19% (262/3 200); 10.51% (142/1 350) for metropolis residents and 6.49% (120/1 850) for medium-sized and small city residents. The prevalence of VAD and marginal VAD for males was 3.87% (61/1 577) and 8.24% (130/1 577), respectively (P<0.05). The prevalence of VAD according to age group was 3.65% (72/1 975), 4.96% (50/1 008), and 5.99% (13/217), respectively(P=0.097). The prevalence of marginal VAD according to age group was 6.99% (138/1 975), 9.82% (99/1 008), and 11.52% (25/217), respectively(P=0.05). Conclusion Chinese urban elderly residents showed various levels of VAD, although marginal VAD was quite common. As VAD was more common in metropolis residents and older residents, specific strategies should target these populations.