Objective To evaluate the efficacy and safety of Xiao-fan-xi-ji in treatment of the post operation of mixed hemorrhoids. Methods198 patients were randomly divided into the treatment group(112 cases,treated by Xiao-fan-xi-ji for 15 days)and the control group(96 cases,treated by Potassium Permanganate for 15 days).The improvement of symptom,sign and quality of life scores were evaluated. ResultsThe experimental and control groups in age,sex 、ethnic and the degree of disease had no statistical significance(all P＞0.05).After 2,7 days treatment,major adverse reaction was observed.Compared two groups in postoperative pain and edema edge,there was significant difference between the two groups(P＜0.05).The average healing time in experimental group was shorter than control group.Compared with control group,the quality of life scores increased after the treatment,the differences had statistical significance(P＜0.05). ConclusionXiao-fan-xi-ji was effective in the treatment of patients with mixed hemorrhoids after the operation,it was worth being promoted.

Objective To isolate and culture the rabbit mesenchymal stem cells,and explore the biological features in vitro.Methods Two milliliter of bone marrow was extracted from the tibia of juvenile rabbit under anesthesia and sterile conditions,and mesenchymal stem cells were obtained by density gradient centrifugation and inoculated to 100ml culture flask.The morphological changes,adherence rate and ultrastructure of the stem cells were observed.The surface markers and growth cycle of the mesenchymal stem cells were detected by flow cytometry,and biological features were observed by inducing the cells differentiate into osteoblasts.Results The adherence of mesenchymal stem cells started 2 hours after culturing,basically finished 20 hours later,and more than 90% of the cells were fused at the 15th day.Observed with transmission electron microscopy,the cultured cells showed typical ultrastructure of stem cells: numbers of microvillus mainly distributed on one side of the cells,irregular nuclei with indentation,and lots of cell organs.Analysis for the cell surface markers indicated positive expression of CD44 and CD90 and negative expression of CD45 in mesenchymal stem cells.Cell growth cycle assay showed that most mesenchymal stem cells(about 97%) stayed in stage G1 and G2.Three weeks after osteoblastic induction,the mesenchymal stem cells gradually produced small calcium salt crystals,the cells were positive in alkaline phosphatase staining,and Von Kossa staining showed many calcium salts in the cell clone as black reaction deposits.Conclusions The rabbit bone marrow mesenchymal stem cells isolated by density gradient centrifugation are of high purity and stable growth rate,and the cells' characters can be still maintained after serial subcultivation.Since easy to operate on isolation and proliferation,the mesenchymal stem cells could be used as the tissue engineering seed cells in repairing of intervertebral disc degeneration.

Objective: To study the pharmacological effects of Zengxuean capsule (Radix Astragali, Indigo Naturalis, Cordyceps, etc) on anti inflammation.Methods:A few conventional models, such as the mouse pinna swelling induced by croton oil, were employed to determine the anti inflammatory activities of Zengxuean capsule.Results: Zengxuean capsule obviously inhibited the swelling of mouse pinna induced by croton oil, suppressed the edema of rat hind paw elicited by injection of 1% carrageenan, significantly depressed the increase of peritoneal capillary permeability in the xylene induced mice, and greatly decreased proliferation of granuloma led by implanting cotton pellet. It had an abatement effect of algesia induced by heat with tail flick method, and could not inhibit the swelling of pinna led by croton oil when mouse's adrenal was resected.Conclusion: Zengxuean capsule is an effective medicine on anti inflammation, and its acitivity is realized by adrenal cortical system.

Th2 cytokines play a pivotal role in the pathogenesis of allergic rhinitis. To investigate the effect of p38 mitogen-activated protein kinase (MAPK) on the production of Th2 cytokines such as IL-4 and IL-5 in allergic rhinitis, a model of allergic rhinitis was established in SD rats. The expression level of p38 MAPK mRNA in PBMCs was detected by means of real time quantitative RT-PCR. The p38 MAPK activity in PBMCs was detected by Western blotting. PBMCs were cultured with various concentrations of p38 MAPK inhibitor SB 239063 or without the treatment, and then IL-4, IL-5 levels of the supernatant were determined by using sandwich ELISA. The results showed that mRNA expression and activity of p38 MAPK in PBMCs were significantly higher in allergic rhinitis rats than in control rats (P<0.05). The p38 MAPK inhibitor SB 239063 decreased the production of IL-4 and IL-5 in a dose-dependent manner. It is concluded that p38 MAPK plays an important role in the pathogenesis of allergic rhinitis which is associated with Th2 cytokines release.

ObjectiveTo explore the effects of different nutrition methods on the number and activity of natural killer (NK) cells in liver after hepatectomy in cirrhotic rats. MethodsTwenty thioacetamide-induced cirrhotic rats were randomly divided into enteral nutrition (EN) group ( n =10) and parenteral nutrition (PN) group ( n =10), in which EN or PN was administered for 5 consecutive days 1 day after hepatectomy. The percentage of the NK cells in livers was examined by flow cytometry. Activity of NK cells was measured by 4 h51Cr-release assay.ResultsCompared with the PN group, the percentage (22.2 ％ ± 1.7％ vs. 17.4％ ± 1.8％, P =0.000) and the activity of NK cells (41.6％ ± 2.3％ vs. 37.1％ ± 2.2％, P =0.000) in the livers were significantly higher in the EN group. ConclusionEN after posthepatectomy can ameliorate the percentage and the activity of NK cells in the livers in cirrhotic rats.

Objective To analyze the risk factors of refractory postoperative stenosis after large-scale endoscopic submucosal dissection (ESD) for patients with early esophageal cancer.Methods The data of 35 postoperative stenosis patients previously treated by ESD (dissection ≥3/4 circumferential) for early esophageal cancer from January 2011 to September 2016 in Digestive Endoscopy Center, Changhai Hospital were reviewed.According to the number of endoscopic dilation, 35 patients were divided into two groups: refractory stenosis (≥6 endoscopic dilations, n=21) and non-refractory stenosis (≤5 endoscopic dilations, n=14), comparison between the two groups was performed using t test or Fisher exact probability method.Results Muscle layer damage (P=0.018), longitudinal mucosal defect length (P=0.013), tumor infiltrating depth (P=0.031), and the number of hemostatic clips (P=0.031) were significantly different between the two groups.The history of chemotherapy and radiotherapy, the location of tumor, the macroscopic type, and the postoperative administration of oral prednisolone were not significant differences between the two groups (P>0.05).Conclusion Refractory esophageal stenosis commonly occurs in patients undergoing large-scale ESD with tumor depth >M2, muscle layer damage, longitudinal mucosal defect length ≥50 mm and the number of hemostatic clips ≥6.

Objective To explore the influence of psychological first aid training on cognitive appraisal of sudden events in medical students.Methods A medical university undergraduate students were selected and divided into the training group(n=42) and the control group(n=53).The former was treated with 20 hours short-term targeted psychological first aid,and the latter was treated as blank control.The SAM and LMSQ were adopted to measure students' cognitive appraisal before and after the training.Results After the training,the training group gained significant differences (P＜ 0.05) in threat (11.95 ±3.17) vs (10.45±2.48)(t=2.426,P=0.020),challenge (12.64t2.84) vs (14.40±1.95)(t=-3.304,P=0.002),controllable-by-self (13.05±3.15) vs (14.93±2.00) (t=-3.240,P=0.002),controllable-by-others (12.40±3.10) vs (14.52±2.52) (t=-3.553,P=0.001),stressfulness (13.26±2.69) vs (12.00±1.96) (t=2.592,P=0.013) of SAM,and Physical threat ((23.88±7.59) vs (19.76±4.82),t=3.057,P=0.004) of LMSQ compared with before training.Other factors had no significant difference(P＞0.05).Compared with two groups,the training group gained significant increase(P＜0.05) on the score differences for SAM factors (challenge (t=-2.466,P=0.016),controllable-by-self (t=-2.557,P=0.012),controllable-by-others (t=-2.800,P=0.006)) than the control group,and significant reduction (P＜0.05) in physical threat (t=-2.308,P=0.023) of LMSQ.Conclusion Short-term targeted psychological first aid training has certain effects on changing cognitive appraisal about sudden events for medical students.

Objective To comprehend the status and risk factors of overweight and obesity among urban and rural inhabitants of Shenchi county.Methods With stratified cluster sampling,two residents" committees were selected as investigation spots from each town of Longquan,Yijing,Bajiao and Hezhi of Shenchi county.Permanent inhabitants aged 20 to 74 yrs were investigated on their status of overweight and obesity and its realted risk factors.Results In this study,2231 inhabitants were investigated,among which male 871 and female 1 360.The prevalence rate of overweight and obesity were 28.6%(standardized rate was 26.7%) and 5.1% (standardized rate was 4,5%).There was a statistic significance in prevalence rate of overweight between male and female(X~2=4.595, P0.05).It was discovered that the age,the degree of education, the annual income of family,drinking,exercise status,alimentary control status,family history and so on had the relation with BMI, the exercise and diet control status assumed negative association by multiple linear regression.Conclusion There is a high prevalence rate of overweight and obesity among residents in Shenchi county in Shanxi province.We should make the comprehensive intervention measures according to its status and risk factors,and make the prevalence rate decreased.

Aim To observe the protective effects of two flavone morphons on hypoxia/reoxygenation(H/R) injury in myocardial cells and explore the mechanisms.Methods The hypoxia/reoxygenation injury model of cultured neonatal rat cardiomyocytes was developed. The cell morphology,the spontaneous beating,the survival rate,the content of LDH,NOS,T-SOD,MDA and the activity of Na+,K+-ATP,Ca2+,Mg2+-ATP enzyme were determined in the cultured neonatal rat cardiomyocytes injuried by H/R.Results Compared with the model,preconditioning by two flavone morphons enhanced the spontaneous beating and the survival rate. Meanwhile,it increased the activity of T-SOD,Na+,K+-ATP,Ca2+,Mg2+-ATP enzyme and decreased the release of LDH,NOS,MDA(P

[ ABSTRACT] AIM:To study the protective effect of Astragalus polysaccharides ( APS) on free fatty acid-induced injury in human umbilical vein endothelial cells (HUVECs).METHODS: Cultured HUVECs were divided into control group, APS group [ APS (200 mg/L) treated for 24 h], free fatty acid group [free fatty acid (0.25 mmol/L) treated for 24 h], free fatty acid plus APS group [free fatty acid (0.25 mmol/L) and APS (200 mg/L) treated for 24 h], and com-pound C group [ free fatty acid (0.25 mmol/L) and APS (200 mg/L) and AMPK inhibitor compound C (10 μmol/L) treated for 24 h] .The cell viability was detected by MTT assay.Nitric oxide ( NO) content in the medium was determined by nitrate reductase assay.The protein levels of total adenosine monophosphate-activated protein kinase (AMPK), phos-phorylated adenosine monophosphate-activated protein kinase (p-AMPK), endothelial nitric oxide synthase (eNOS) and phosphorylated endothelial nitric oxide synthase ( p-eNOS) were measured by Western blot.RESULTS: No significant difference of all indexes between APS group and control group was observed.The cell viability in free fatty acid group de-creased significantly compared with control group.The cell viability in free fatty acid plus APS group was significantly im-proved as compared with free fatty acid group.The cell viability in compound C group was almost the same as that in free fatty acid group.The No content and protein levels of p-AMPK and p-eNOS in free fatty acid group decreased obviously as compared with control group, while the NO content and protein levels of p-AMPK and p-eNOS in free fatty acid plus APS group increased obviously compared with free fatty acid group.No significant difference of the p-AMPK and p-eNOS protein levels between free fatty acid plus APS group and free fatty acid group was observed.No significant difference of the AMPK and eNOS protein levels in all groups was found.CONCLUSION:APS attenuates the free fatty acid-induced injury, and its mechanism is related to the AMPK-eNOS signal pathway.