Scavenger receptor B type Ⅰ (SR-BI) is a HDL receptor which fivst identified at molecular level. It can mediate the metabolism of cholesterol and other lipids between HDL and cells, involving in intestinal absorption of cholesterol, and mediate outflow of cholesterol from peripheral tissues to promote the selective uptake of cholesterol by the liver and transfer in liver cells, and then secrete cholesterol into the bile through the bile duct side of the membrane. This process can affect cholesterol levels in bile. In this review,we discuss the process of SR-BI-mediated cholesterol metabolism.

Objective To study the clinical value of vaccum sealing drainage in plasma cell mastitis.Methods 59 patients with plasma cell mastitis admitted in our hospital were treated with vaccum sealing drainage (the experimental group) from Jan.2011 to Apr.2014.59 plasma cell mastitis patients were treated with traditional vaseline gauze drainage (the control group).Clinical data like hospitalization length,healing time,healing grade,scar size,dressing change frequency,one year recurrence rate and breast deformity were retrospectively analyzed.Results Patients treated with vaccum sealing drainage had shorter hospitalization length and healing time,lower one year recurrence rate and less breast deformity compared to patients treated with traditional Vaseline gauze drainage (P＜0.01),while there was no significant difference in terms of healing grade (P＞0.05).Conclusions Vaccum sealing drainage can significantly shorten the hospitalization time and incision healing time,reduce dressing change frequency and one year recurrence rate in patients with plasma cell mastitis.Because of the smaller scar caused by vaccum sealing drainage,the breast deformity is also less.It is of clinical value for plasma cell mastitis.

ObjectiveTo investigate the relationship between the clinical practice environment and the anxiety in nursing undergraduates.MethodsOne hundred and ninety nursing undergramuates in Tianjin University of Traditional Chinese Medicine and Tianjin Medical University were investjgated by The General Information Form,STAl and Clinical Learning Environmental Scale(CLES).The results underwent analysis.ResultsThe students were scored (48.84±7.56) by the state anxiety scale.The students were scored (42.06±9.91) by the trait arlxiety scale.The students were scored (146.63±23.37) by the Clinical Learning Environmental Scale.The c linical practice envinmment of clinical practice nursing undergraduates was negatively correlated to the anxiety.ConchtsionsAnxiety existed in nursirg undergraduates during clinical practice.The anxiety of clinical practice nursing undergraduates was negstively correlated to the clinical practice environment and the evaluation of the clinical practice environment has influence on the students′ anxiety.

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Objective To study the relationship between expression of G-protein-coupled bile acid receptor 1 (GPBAR1) in gallbladder mucosa and formation of lithogenic bile in patients with gallstones.Methods Gallbladder mucosa,gallbladder wall,bile and plasma were collected from 34 patients with gallstone (GS) and 15 individuals who were gallstone free (GSF).The gallbladder wall was stained with hematoxylin-eosin (HE) and immunohistochemistry to detect pathologic changes and expressions of GPBAR1,mucin 1 (MUC1) and mucin 5AC (MUC5AC).Reverse-transcription polymerase chain reaction (RT-PCR) was used to test mRNA expressions of GPBAR1,MUC1 and MUC5AC in the gallbladder mucosa.The contents of total cholesterol (TC),total bile acid (TBA),triglyceride (TG),low density lipoprotein (LDL) and high density lipoprotein (HDL) in plasma and cholesterol,TBA,phospholipid (PL) and mucin in the bile of gallbladder were measured.Results The gallbladder mucosa in all GS patients showed chronic inflammation on hematoxylin-eosin staining.The expressions of GPBAR1 and MUC5AC were more markedly increased in the GS group than in the GSFgroup (61.34±8.06 vs.43.05±7.83,P＜0.01; 52.11±9.62 vs.45.05±9.27,P＜0.05).The mRNA expressions of GPBAR1 and MUC5AC in the GS group were also more markedly increased than in the GSR group (0.87±0.07 vs.0.80±0.09,P＜0.05; 1.04±0.22 vs.0.8±0.17,P＜0.01).Serum cholesterol,as well as biliary cholesterol,cholesterol mol percentage,cholesterol saturation index and mucin in the GS group were more significantly higher than in the GSF group (5.07±1.64 vs.3.62±1.42,P＜0.01; 17.23±3.67 vs.12.47±2.31,P＜0.01; 7.47±0.65 vs.5.05±0.24,P＜0.01; 1.03±0.58 vs.0.69±0.38,P＜0.01; 92.02±20.89 vs.76.36±19.71,P＜0.05).Biliary total bile acids and bile acids mol percentage were lower in the GS group than in the GSF group (162.68±20.19 vs.180.21±26.05,P＜0.05; 71.28±1.84 vs. 73.29±0.96,P＜0.01). In the GS group,there were negative correlations between the mRNA expression of GPBAR1 and biliary TBA (γ=-0.341,P＜0.05).There were negative correlations in the GS group between the GPBAR1 expression and the level of biliary TBA (γ=- 0.403,P＜0.05),and between the GPBAR1 expression and the level of biliary total lipid (γ=-0.365,P＜0.05).Conclusions This study shows an increase in expression of GPBAR1 in gallbladder mucosa in patients with GS.It is suggested that GPBAR1 may accelerate formation of lithogenic bile by inducing re-absorption of bile acid.

Objective To observe the PML protein expression of hepatocellar carcinoma tissue and cells lines and As 2 O3 regulate its expression .Methods Immunohistochemistry was used to examine the PML protein expression of hepatocellar carcinoma tissue . Western blot analysis were used to observe PML protein expression of hepatocellar carcinoma tissue of 12 cases ,5 hepatocellar car-cinoma cell lines ,such as HuH7 ,HepG2 ,Hep3B ,SMMC-7721 ,MHC97H .Western blot analysis was used to detected the PML pro-tein expression of these hepatocellar carcinoma cell lines after 72-96 h treated with 0 .25 μg/mL of As2 O3 .Results Immunohisch-enmical staining showed that the PML protein was expressed in both cytoplasm and nucleus ,did not well-distributed in hepatocellar carcinoma cells .There was no significant differences of PML protein expressed among differently differentiated stages of hepatocel-lar carcinoma cells .Western blot analysis found that hepatocellar carcinoma tissues of 12 cases with hepatocellar carcinoma ex-pressed PML protein ,and there was significant difference of PML protein expressed among 12 cases suffer with hepatocellar carci-noma .hepatocellar carcinoma cell lines ,such as HuH7 ,HepG2 ,Hep3B ,SMMC-7721 and MHC97H all expressed PML protein ,and there was little difference of PML protein expressed among hepatocellar carcinoma cell lines .The PML protein expression of HuH7 ,HepG2 ,Hep3B ,SMMC-7721 and MHC97H cell after 72-96 h treated with 0 .25 μg/mL of As2O3 significant decreased . Conclusion Hepatocellar carcinoma tissue and cells may express PML protein ,and As2 O3 may regulate this protein expression as well .PML protein may be the target molecule of As2 O3 treating HCC .

As a new technique ,CT spectral imaging can obtain two images of different energy level at same phase simultaneously ,then immediately rebuild high definition monoenergetic images ranging from 40 kV to 140 kV .It provides reliable data and information for early qualitative and quantitative diagnosis of diseases ,which possess huge potential in clinical and science research ;and more extensive developing space for developing of scientific research and clinical application .

The three‐dimensional digital substraction angiography (3D‐DSA) significantly elevated detection rate of intracranial small vessel aneurysms in recent years .It has become the novel gold standard diagnosing antracranial small vessel aneurysms .The present article made a review on 3D‐DSA value for diagnosis ,treatment and prognostic assessment of intracranial small vessel aneurysms .

Objective To retrospectively evaluate the safety ,technical success rate and long‐term efficacy of the hepatic mul‐tiple cavernous hemangioma with super selective arterial cheoembolization .Methods 6 cases multiple hepatic cavernous hemangio‐ma by clinical diagnosed between 2004-2011 years in our hospital ,Through arterial super selective and completely filling cheoem‐bolization by Pingyang mycin lipiodol emulsion(PYM‐Lip) ,To assess the long‐term efficacy .by multi slice spiral CT enhanced scan‐ning and carry on relevant statistics processing in postoperative 6 ,12 ,36months .Results 26 lesions were embolismed in 6 cases multiple hepatic cavernous hemangioma ,Among the number of successful embolization were 15 of 1 cases ,2 of 4 cases ,3 of 1 cases , respectively .26 lesions was decreased with different degrees ,which the diameter of lesions were reduced with embolismed by CT enhanced scanning in postoperative 6 ,12 ,36months and diameter reduced> 50% ,diameter reduced≤50% ,lesions disappear was 38% (10/26) ,54% (14/26) ,8% (2/26) ,62% (16/26) ,23% (6/26) ,15% (4/26) ,69% (18/26) ,12% (3/26) ,19% (5/26) .Technical operation success rate 100% ,not serious complications occurred .There are statistically significant differences in the size of lesions before and after operation(P<0 .01) .Conclusion The technique success rate was high ,minimally invasive ,the complications was less ,the curative efficacy was obvious by transcatheter arterial super selective cheoembolizaton with hepatic multiple cavernous he ‐mangioma .

Objective To explore the risk factors of bile leakage in patients with laparoscopic common bile duct exploration and primary suture for the purpose of providing clues for reducing occurrence of bile leakage.Methods The clinic data of 193 choledocholithiasis patients with laparoscopic common bile duct exploration and primary suture from October 2012 to March 2017 were retrospective analysed.All patients were divided into bile leakage group (23 patients) and non-bile leakage group (170 patients).Risk factors influencing the incidence of bile leakage were determined by analyzing 21 relevant factors with one-way analysis of variance and Logistic multivariate regression analysis.Count data and ordinal data was expressed as frequency or a percentage.Chi-square test was used to compare with groups of count data,rank-sum test was for comparison between groups of ordinal data,and Logistic regression was for multivariate analysis.Results Among all the patients,the incidence of bile leakage was 11.92％ (23/193).The results of univariate analysis revealed that cholangitis,jaundice,bile characteristics,muddy stone,number of stones,incarcerated stone,open and close peristalsis of duodenal papilla were correlated with bile leakage (x2/Z =2.537,2.122,81.834,50.709,13.242,26.958,90.207,P ＜0.05).The result of multivariate analysis revealed that bile characteristics,muddy stone,incarcerated stone,open and close peristalsis of duodenal papilla was correlated with bile leakage (Wals =14.002,8.899,6.577,5.582,P ＜0.05).Conclusion Bile characteristics,muddy stone,incarcerated stone,open and close peristalsis of duodenal papilla were main risk factors of bile leakage in patients with laparoscopic common bile duct exploration and primary suture.