Objective To clarify the involvement of the free fatty acids(FFA)and lipid peroxida-tion in rat pancreatic tissue during the development of pancreatic injuries inducecd by long-term high-fat diet.Mehtods The male Sprague-Dawley rats (n=72) were randomized into 6 groups (n=12).One group (group control) received standard chow for 18 weeks, the other five groups (group HFD) were fed with a high-fat diet respectively for 2, 4, 6, 10 and 18 weeks.Serum TG and TCH, the his-topathological changes, pancreatic malondialdehyde (MDA) content, superoxide dismutase (SOD) ac-tivity and the concentration of free fatty acids in pancreatic tissues were examined.Pancreatic fibrosis was assessed using Sirius Red staining.The expression of desmin, a smooth muscle actin (α-SMA), platelet-derived growth factor receptor type β (PDGFRβ) and transforming growth factor131 (TGFβ1) was determined with immunohistochemistry.Results Pancreatic MDA content, the number of desmin and α-SMA positive cells were significantly increased in all the HFD groups.The FFA content, PDGFRβ, and TGFβ1 in pancreatic tissues increased in rats of 2, 4 and 6 week HFD groups accompa-nied with typical histological alternations including edema, capillary vessels hyperplasia, and focal aci-nar degeneration, vaculation of acinar and islet cells.In 6, 10 and 18 weeks HFD groups, the lesions had progressed and acinar cell atrophy, fatty replacement, deposition of hemosiderin, and interstitial collagen deposition were observed.Conclusions The increased amounts of FFA and lipid peroxidant in pancreatic tissues are associated with pancreatic cell injuryies and synthesis of collagen by activated PSCs during the chronic high-fat diet intake.

Objective To have a research on the improvement of visual field of advanced primary glaucoma with tubular visual field after the surgery.Methods Twenty-six patients in the hospital during Nov.2010-Dec.2011 were treated with the compound trabeculectomy.Have a comparison between the preoperative period and postoperative period about the visual field index,visual acuity,intra-ocular tension,bleb After 6-18 mouths following-up,have a summary on the complication rate.Results The visual field index,visual acuity,intra-ocular tension,bleb in the postoperative period were much better than that in the preoperative period.There were no serious complications after the surgery.Conclusion To use the compound trabeculectomy to treat the advanced primary glaucoma with tubular visual field patients is worthy to be promoted and applicated in clinical practice.This method is full of safety and availability.

Objective To study the short-and long-term results for Cockett syndrome caused acute deep vein thrombosis (DVT) of the lower extremity by surgical thrombectomy or catheter-directed thrombolysis.Methods One hundred and two Cockett syndrome caused acute DVT cases were treated by surgical thrombectomy or catheter-directed thrombolysis (CDT) from Jan 2006 to Dec 2011.There were 52 patients treated by CDT (group A),and 50 cases by surgical thrombectomy (group B).All patients received warfarin treatment after operation.Results There were no significant differences in general clinical characteristics between the two groups.The limb edema reduction rates between the two groups were of no significant difference(83％ ± 6％ vs.82％ ± 8％ P ＞ 0.05).The venous patency were basically the same (64.6％ ± 6.7％ vs.65.3％ ± 7.2％,P ＞ 0.05).The mean time required was shorter in group A than in group B[(30.5 ±6.7) min vs.(97.5 ±23.6) min,P ＜0.01].The average hospital stay was shorter [(9.8±5.4) d vs.(17.7 ±8.2) d,P＜0.01],and morbidity was less[13.4％ vs.42％,P＜0.01].Eighty six patients were followed up.The circunference difference of thigh,the score of vein patency between the two groups were of no significant difference (P ＞ 0.05).Conclusions Compared with surgical group,patients in CDT group have shorter hospital stay,less complication and similar long and shortterm results.

Objective To explore the association between complement C3 and the prevalence of simple fatty liver disease and nonalcoholic steatohepatitis. Methods A total of 2 799 health check-up participants were recruited from Tianjin Medical University General Hospital-Health Management Centre. Serum C3 levels were measured using immunoturbidimetry method and simple fatty liver disease and nonalcoholic steatohepatitis were diagnosed by liver ultrasonography and serum alanine aminotransferase concentration. Multiple logistic regression analysis was used to examine the association between quartiles of serum C3 levels and the prevalence of simple fatty liver disease and nonalcoholic steatohepatitis. Results After adjusting for covariates, the odds ratios (95% confidence interval) of simple fatty liver disease and nonalcoholic steatohepatitis for increasing quartiles of C3 were: 1.00 (reference), 2.15 (1.55, 3.01), 3.28 (2.35, 4.6) and 4.31 (3.11, 6.02); and 1.00 (reference), 4.54 (1.68, 15.91), 7.81 (3.02, 26.67) and 14.91 (5.94, 50.14) (both P for trend<0.000 1), respectively. Conclusions The study found that the elevated C3 levels were significantly associated with the prevalence of simple fatty liver disease and nonalcoholic steatohepatitis. Further study is needed to clarify whether C3 has a predictive value for the occurrence of nonalcoholic fatty liver disease.

Objective To explore the clinical application of pereutaneous transluminal angioplasty(PTA) and endovascular bracket to treat lower extremity arteriosclorotic occlusion.Methods The clinical data of 36 patients(41 affected limbs)with lower extremity atherosclerotic occlusion who were treated with PTA and bracket implantation from Jan 2008 to Dee 2008 were summarized.Results The initial successful rate of PTA wag 95.1% (39/41).The clinical symptoms were considerably improved in 37 affected limbs,representing of pain disappearing,skin temperature increasing and the healing of refractory ulcer.The index of ankle to brachial significantly increased from 0.54±0.11 to 0.79±0.15(before v.s.after therapy).However,no improvement was observed in 3 affected limbs,and one affected limb Wag re-operated by the amputation.In the following 3 to 15 months.three superficial femorsI arteries were re-obstructed at the 5th,6th,12th month,respectively.One arteria tibialis pesterior was re-obstructed at the 8th month.The cumulative cure rate was 89.7%(35/39).Conclusions PTA is effective in treating atherosclerotic occlusive diseases.The endovascular bracket can increase the cumulative cure rate.PTA and endovascular bracket are safe and effective in treating lower extremity arteriosclerotie occlusion.

Objective To investigate the effect of proliferation,apoptosis and cell cycle of 3-MA on rat endothelial progenitor cells. Methods Bone marrow-derived mononuclear cells were isolated from rat bone marrow by ficoll. There were five groups. The control group and four 3-MA concentration groups: 1. 25 mmol/L,2. 5 mmol/L,5 mmol/L, 10 mmol/L. MTT was used to measure the proliferation of endothelial progenitor cells. Flow cytometry ( FCM) was used to detect cell apoptosis and cell cycle. Results (1)5 mmol/L 3-MA promotes proliferation of endothelial progenitor cells, while 10 mmol/L 3-MA inhibits the proliferation of endothelial progenitor cells (P ＜ 0. 05). (2) 10 mmol/L 3-MA promotes apoptosis of endothelial progenitor cells, compared with the control, the difference was significant ( P ＜ 0. 05 ). (3) 3-MA at the concentration of 5 mmol/L reduces cells at G0/G1 phase and increases S and G2/M phase cells; 10 mmol/L 3-MA induces endothelial progenitor cells blockade at S phase, G2/M phase cells decreased, compared with the control, the difference was significant (P ＜ 0. 05). Conclusions 5 mmol/L 3-MA promotes the proliferation of endothelial progenitor cells. 10 mmol/L 3-MA inhibits the proliferation and promotes apoptosis of endothelial progenitor cells.

Objective To study the changes and significance of plasma atrial natriuretic peptide (ANP),endothehn-1 (ET-1),von Willebrand factor (vWF) levels in newborns with persistent pulmonary hypertension (PPHN) after the treatment of sildenafil.Methods Sixty-six cases with PPHN group and 40 cases with non-PPHN (control group) were enrolled.PPHN group was in the treatment of sildenafil.Collected the blood when before the treatment of sildenafil and 3,7 d after treatment,respectively.Arterial blood gas were done and pulmonary arterial systolic pressure (PASP) was measured before treatment and 3,7 d after treatment,and by the same time recording pulse oxygen saturation (SpO2).Plasma ANP,ET-1,vWF levels were measured by ELISA method.Results The levels of PASP,SpO2 arterial partial pressure of oxygen (PaO2),arterial partial pressure of carbon dioxide (PaCO2) and plasma ANP,ET-1,vWF in PPHN group before treatment [(66.5 ± 13.4)mm Hg (1 mm Hg =0.133 kPa),0.726 ±0.531,(46.3 ±7.2)mm Hg,(59.2 ± 7.4) mm Hg,(272.6 ± 20.3)ng/L,(221.3 ± 24.3) ng/L,(142.5 ± 20.3)％] compared with controlgroup [(25.0±6.2) mm Hg,0.896 ± 0.767,(88.3 ±7.6) mm Hg,(41.1 ±6.1) mm Hg,(68.4 ± 7.9) ng/L,(39.8 ± 6.5) ng/L,(95.3 ± 18.5)％] were statistically significant(P ＜ 0.05).Their levels in PPHN group 3 dafter treatment[(48.3 ± 3.2) mm Hg,0.841 ± 0.416,(73.6 ± 9.3)mm Hg,(50.5 ± 7.2) mm Hg,(102.6 ±20.3) ng/L,(79.6 ± 15.2) ng/L,(103.6 ± 14.1)％] were significantly improved,there was significantdifference compared with before treatment and control group(P ＜ 0.05).Their levels in PPHN group 7 d aftertreatment [(25.2 ± 3.6) mm Hg,0.882 ± 0.724,(85.4 ± 7.4) mm Hg,(40.2 ± 6.4) mm Hg,(64.4 ± 3.6)ng/L,(37.3 ± 5.4)ng/L,(92.9 ± 11.7)％] were significantly improved,there was significant difference compared with 3 d after treatment (P ＜ 0.05),the difference was no statistically significant compared with control group (P＞ 0.05).Linear correlation analysis showed that ANP,ET-1,vWF and PASP,PaCO2 were significantly positively correlated (P ＜ 0.01),ANP,ET-1,vWF and SpO2,PaO2 were significantly negatively correlated (P＜ 0.01).On the basis of cardiac ultrasound monitoring PASP,ANP evaluation of the efficacy of sildenafil sensitivity was 82.2％,specificity was 83.4％ ;ET-1 was 86.4％ and 87.6％; vWF was 85.1％ and 84.7％.Conclusion ANP,ET-1,vWF may play an important role in the mechanism of the treatment of PPHN by sildenafil,and could be used as an objective index to evaluate the effect of sildenafil on PPHN.

To screen interaction proteins of CVB3 VP3 from cDNA library of human heart ,yeast two hybridization was conducted in this study .The bait plasmid pGBKT7-VP3 was constructed ,VP3 fusion protein and its self-activation in AH109 yeast cells was then detected .The positive clones were confirmed by PCR amplification of cDNA inserts ,Alu I digesting ,DNA sequencing ,and Blasting were used to sort positive colonies to eliminate duplicates .Positive clones were confirmed by one-to-one yeast two hybridization ,and them were sequenced and analyzed for homology .Theα-galactosidase assay was performed to detect the interaction strength .Totally ,10 positive proteins interacting with VP3 of CVB3 were obtained by homology analy-sis,namely,EIF4A2,HADHB,GAPDH,ASPG,ACTA1,TNNI3,CKM,LMOD3,ERGIC1,and ALDH2.The strength of interactions between VP3 and 10 candidate proteins were proved byα-galactosidase assay .This study will contribute to explore the CVB3 VP3 function on molecular level and provides some new clues to explain the pathogenic mechanism of myo-carditis and cardiomyopathy .

Objective To evaluate whether the serum uric acid (SUA) levels are related to development of prediabetes. Methods This was a 6-year cohort study, subjects were recruited from Tianjin Medical University General Hospital Health Management Center. A prospective assessment (n=30 910) was performed. Subjects without a history of prediabetes were followed up for 6 years (with a median follow-up of 2.7 person-years). All relevant variables including SUA concentrations, and fasting plasma glucose were assessed at baseline and yearly during the follow-up. Prediabetes was defined in accordance with the American Diabetes Association criteria of 2014. Multivariate-adjusted Cox proportional hazards regression models were fitted to assess relationships between the quintiles of baseline SUA and the incidence of prediabetes. Results The incidence of prediabetes was 55 per 1 000 person-years. In comparison with subjects in the lowest quintile, the odds ratios and hazard ratio (95%confidence interval) of higher quintile of SUA were 1.04 (0.93, 1.15), 1.07 (0.95, 1.19), 1.13 (1.01, 1.28) and 1.15 (1.02, 1.30) (P for trend=0.01), respectively, after adjusting for potential confounders. Conclusion SUA levels predicted an increased risk of prediabetes in adults.