Objective To observe the adhension and stracking of leukocyte in the capillary vessels, and investigate the relationship between leukocyte and microvascular morphologic changes in retinal microvessels of rats with early diabetes. Methods A total of 90 healthy adult male Wistar rats were randomly divided into control and diabetes (induced by Streptozotocin, STZ) groups with 45 rats in each group. The rats in the diabetic group were further divided into 3, 7, and 14 days groups with 5 rats in each group, and 30, 90, and 180 days groups with 10 rats in each group. The right eyes of rats in each group were prepared for retinal digest preparations. The expression of leukocyte common antigen (CD45) was detected by immunohistochemical staining. Results Few CD45 positive cells in the retinal capillaries were seen in the control group. The expression of CD45 was significantly increased in the retinal capillaries 3 days after diabetes induction, and reached a peak at the 14th day. Morphological changes including capillary telangiectasia, atresia, and irregularity of capillary caliber were found in the retinal capillaries of rats 90 days after diabetes induction. The changes were aggravated 180 days after diabetes induction. Conclusion Leukocyte adhesion occurs in the early stage of diabetic retinopathy (DR), and is the beginning of the microvascular pathological changes. Leukocyte adhesion may play an important role in the occurrence and development of DR as the foundation of microvascular morphological changes.

This paper systematically stated the sexual moral problems of the repairment of ruptured hymen resulted form different reasons and the moral principles and requirements for the operator.

Objective To study the clinical value of bedside ultrasound in predicting the fluid responsiveness in pa?tients with septic shock in intensive care unit (ICU). Methods Forty-two mechanically ventilated patients with septic shock who admitted to ICU of the Affiliated Hospital of North China University of Science and Technology from January 2015 to April 2015 were included in this study. All patients were treated with volume expansion (VE) text. Hemodynamics in?dexes were obtained by ultrasound before and after each test, including stroke volume (SV), aortic peak blood flow velocity variation rate of breathing (△VpeakAO), inferior vena cava expansion index (△IVC) and brachial artery maximum speed vari?ation rate (△VpeakBA). Clinical data and central venous pressure (CVP) were recorded. Based on the responsiveness of SV, patients were divided into responsive group (R) and non-responsive group (NR), respectively. The differences of the above in?dexes were compared between two groups. The correlation of△IVC,△VpeakAO,△VpeakBA and△SV was determined. The role of the hemodynamic index for predicting volume responsiveness was evaluated by receiver operating characteristic ROC curves. Results A total of 47 VE tests were performed in 42 patients, 25 in R group and 22 in NR group. Before VE test, the hemodynamics indicators of△IVC,△VpeakAO and△VpeakBA were significantly higher in R group compared with those of NR group (P<0.05). The values of△IVC,△VpeakAO and△VpeakBA were positively correlated with△SV in two groups. The areas under the ROC curve of the hemodynamics indicators were 0.825, 0.853 and 0.866 for △IVC, △VpeakAO and△VpeakBA, and they all showed high sensitivity and specificity. Conclusion The hemodynamic index measured by bedside ultrasound can predict the volume responsiveness in mechanically ventilated patients with septic shock fluid therapy, and which can be used to fluid therapy with a high degree of specific and sensitivity in clinical practice.

Objective: To investigate the ultrasound evaluation on lfuid responsiveness in patients with septic shock. Methods: There 42 septic shock patients treated by mechanical ventilation in our hospital from 2015-01 to 2015-04 were studied. All patients received volume expansion (VE) text, ultrasound examination was conducted to measure hemodynamic parameters of inferior vena cava variation rate of breathing (ΔIVC), aortic peak blood lfow velocity variation rate of breathing (ΔVpeakAO), brachial artery maximum speed variation rate (ΔVpeakBA) and stroke volume (ΔSV) at before and after text. Based on the response to VE text, the patients were divided into 2 groups as Responsive group and Non-responsive group, the above indexes and their correlations to ΔSV were analyzed. The clinical values of those parameters for predicting volume responsiveness were evaluated by ROC curves. Results: A total of 47 VE tests were conducted in 42 patients including 25 cases in Responsive group and 22 cases in Non-responsive group. Before VE test, the parameters of ΔIVC, ΔVpeakAO and ΔVpeakBA were higher in Responsive group than Non-responsive group; ΔIVC, ΔVpeakAO and ΔVpeakBA were obviously related to ΔSV (r=0.631, 0.668 and 0.619). The area of ΔIVC, ΔVpeakAO and ΔVpeakBA under ROC curves were 0.817, 0.853 and 0.866 respectively, they were all with the high sensitivity and speciifcity. Conclusion: Ultrasound monitored hemodynamic parameters may predict the volume responsiveness in septic shock patients with mechanical ventilation, it could be used for guiding liquid treatment in relevant patients.

Objective To analyze the reason of hemoptysis after the bidirectional Glenn shunt procedure on complex congenital heart disease.Methods The feature of imaging data of 24 patients (1 6 males,8 females;age ranges:3-27 years;14 cases of single ventricle,3 cases of tricuspid Atresia,4 cases of pulmonary Atresia,3 cases of double Outlet Right Ventricle)after the bi-directional Glenn shunt procedure were retrospectively studied.Results Six patients had various degrees of hemoptysis (50 - 300 mL)after surgery,except for one case which has bronchiectasis on the left inferior lobe.The common feature of the other 5 cases present as plaque ground glass opacity and pulmonary arteriovenous fistula located at the corresponding subpleural field.After different therapy (three cases were performed endovascular management,2 cases were under expectant treatment),the lesion disappeared or obviously smaller which was clear evidence for the existence and bleeding of fistula.The occurrence of this disease in the present study was nearly 20.8%,which were accord with references.Conclusion Pulmonary arteriovenous fistula should be considered when crypto-genic hemoptysis happened after bi-directional Glenn shunt with complex congenital heart disease which exclude tuberculosis,bron-chiectasis or rupture and bleeding of MAPCAs.Multiple sliced CT angiography can be used to as the first line examination and sup-ply acute evidence for clinic therapy in time.

Objective To investigate the clinical and pathologic features of small gastrointestinal stromal tumors (small GISTs,d ＜ 2.0 cm).Methods Medical records of 95 patients undergoing surgery (endoscopic surgery,thoracoscopic/laparoscropic surgery and open surgery)and diagnosed as having GISTs by pathology and immunohistochemistry in Nanfang hospital from October 2003 to June 2014 were retrospectively analyzed.Based on clinical and pathological results,correlation analyses between risk factors for endoscopic ultrasonography(EUS) and Mitotic count(MI),clinicopathologic parameter and NIH risk classification were performed.Results Among 95 cases (104 lesions),88 were single,while 7 were multiple;81.7％ (85/104) small GISTs arose from stomach,including 87.1％ (74/85)in middle-upper stomach;5 cases (5.3％) presented calcification of different degrees,3 cases(3.2％) presented local necrosis and 2 cases (2.1％) with arrangement of epithelioid cells;88 cases (92.6％) were very low grade of NIH risk classification,6 cases (6.3％) were intermediate risk and 1 case(1.1％) was high risk.Positive rates of CD34 and CD117 were 95.8％ (91/95) and 96.8％ (92/95) respectively.The risk factors (border,mucosal surface,echo and heterogeneity) of EUS had no correlation with mitotic count(P＞0.05).The correlation analysis between clinicopathologic features and NIH risk classification revealed tumors more than 1.5 cm had a striking correlation with NIH risk classification (P＜ 0.05).Conclusion Most small GISTs,single or multiple,located at middle-upper stomach,were of very low or low risk,and have a favorable prognosis.But it has worse biological behavior and a higher grade risk when the diameter is more than 1.5 cm,intervention should be recommended.

Objective To evaluate the protective effect of exogenous biliverdin on ultraviolet B (UVB)-radiated HaCaT cells,and to explore its mechanism.Methods Cultured HaCaT cells were divided into 5 groups:control group receiving no treatment,UVB group irradiated with 30 mJ/cm2 UVB,3 biliverdin + UVB groups treated with 100 nmol/L,1 μmol/L and 10 μmol/L biliverdin respectively for 1 hour followed by 30 mJ/cm2 UVB radiation.After 24-hour treatment,changes in the morphology of HaCaT cells were observed,and cell counting kit 8 (CCK8) assay was performed to determine cell survival rates in the above groups.Western blot analysis was conducted to measure the protein expression of antioxidant signaling molecule NF-E2-related factor-2 (Nrf-2) and the photodamage signaling molecules matrix metalloproteinase-1 (MMP-1) and MMP-3.Results CCK8 assay showed that the survival rate of HaCaT cells was significantly lower in the UVB group than in the control group (P ＜ 0.05),but significantly higher in the 100-nmol/L,1-μmol/L and 10-μmol/L biliverdin + UVB groups than in the UVB group (all P ＜ 0.05).Western blot analysis showed that the protein expression of MMP-1 and MMP-3 was significantly higher in the UVB group (1.150 ± 0.187,0.979 ± 0.054 respectively) than in the control group (0.116 ± 0.018,0.636 ± 0.035 respectively;both P ＜ 0.01),but was significantly lower in the 100-nmol/L,1-μmol/L and 10-μmol/L biliverdin + UVB groups (MMP-1:0.825 ± 0.139,0.313 ± 0.047 and 0.286 ± 0.036 respectively;MMP-3:0.888 ± 0.017,0.672 ± 0.042 and 0.569:±:0.037 respectively) than in the UVB group (all P ＜ 0.05).Moreover,the protein expression of Nrf-2 was significantly lower in the UVB group (0.906 ± 0.034) than in the control group (1.242 ± 0.141,P ＜ 0.05),but significantly higher in the 100-nmol/L,1-μmol/L and 10-μmol/L biliverdin + UVB groups (1.556 ± 0.112,1.897 ± 0.234 and 2.035 ±0.274) than in the UVB group (all P ＜ 0.01).Conclusion Exogenous biliverdin protects against UVB-induced photodamage in HaCaT cells,which may be associated with Nrf-2 antioxidant signaling pathway.

Objective To investigate the effects of different depth of anesthesia on ScvO2 and ABL in elderly patients with gastrointestinal cancer. Methods Totally 55 elderly patients undergoing gastrointestinal sur-gery were randomly divided into deep anesthesia group(BIS40-49)(group D,n=27)and light anesthesia group (BIS50-59)(group S,n = 28). While SVV value was fixed,fluid management was conducted while monitoring CVP. HR,MAP,the change of central venous oxygen saturation and lactic acid index were recorded in different time points. Results Propofol dosage in group D and group S indicated statistical significance(P<0.05). ScvO2 in group S in T3~T5 was higher than that in T0 and the difference was statistically significant(P < 0.05). Com-pared with ScvO2 in T3 in group D,that in group S was significantly higher and the difference was statistically sig-nificant(P<0.01),but no significant difference was found in other time point in 2 groups(P>0.05). There was no significant difference between and within ABL groups in each time period(P>0.05). There was no significant difference in terms of other indicators between 2 groups. Conclusions For elderly patients with gastrointestinal surgery,shallow anesthesia can improve tissue oxygenation and reduce the amount of anesthetics.

0bjective To explore the level of identification and related factors of depression in physicians of Beijing tertiary general hospitals.Methods A cross-sectional investigation was used to screen the outpatients,and depression was diagnosed according to Mini International Neuropsyehiatric Interview (MINI).Identification of depression was defined as referral to psychiatrist or managed with antidepressant or sedative hypnotics.Results Among 248 cases of depression,30(12.1%)were referred to psychiatrists,28(8.9%)managed with antidepressant or sedative hypnotics.The identification rate of depression by physicians was 21.0%.and the identification rate by neurologist was 40.4%,which is higher than the rate by cardiologist(22.4%),gastrointestinal physician(3.8%)and gynecologist(2.0%)(χ2=61.077,P<0.05).Visiting neurology department,severity of life impairment,with psychotic distress history,hadpsychological complaints.co-morbidity with anxiety related to the physician's identification of depression.Among the psychological complaints.only mood disorder and insomnia were related to the physician'sidentification of depression.Conclusions The level of depression identification by physician was low,the level of neurologist wag higher than that of cardiologist,gastrointestinal physician and gynecologist.The patient with serious life impairment,psychotic distress history,mood disorder and insomnia complaints was asily to be identified.

Objective To explore the prevalence and physician's recognition of depression and anxiety disorder in gastrointestinal out-patients of three tertiary general hospitals in Beijing. Methods A hospital-based cross-sectional survey was conducted in the gastrointestinal out-patient departments of three tertiary general hospitals in Beijing from May to June 2007. Total 517 subjects were recruited consecutively within a one month period. All the subjects were screened with Hospital Anxiety Depression Scale (HADS). The subjects with HADS score of 8 and over were interviewed and diagnosed by psychiatrists using Mini International Neuropsychiatric Interview (MINI). The physicians made the diagnosis and management without knowing the results of MINI and HADS score. Results Among the 517 cases, 301 had a HADS score of 8 and above and 244 were interviewed by psychiatrists; the response rate was 81.1%. The prevalence according to Diagnostic and Statistical Manual of Mental Disorders Fourth edition of depressive disorders and anxiety disorders in gastrointestinal outpatients were 15.3%, depressive disorders were 12. 0%, anxiety disorders were 6. 4%, depression combined anxiety disorder was 3. 0%. The prevalence of depression, anxiety, depression combined anxiety were not different between genders (x2 = 0. 874, x2 = 1.797,x2 =0.518, P >0.05) and among different age group ( 18-34, 35-54, ≥55 years old) (x2 = 1. 084,2 = 2. 735, 2 = 0. 350, P 0. 05 ). Gastritis and gastrointestinal dysfunction were the major diagnoses in patients with depression and/or anxiety disorders, the rates were 30. 6% and 26. 4% respectively. The rate of identification of depression and anxiety disorder by physicians was 2. 8%. Conclusion Gastrointestinal out-patients have a high prevalence of depression and anxiety disorder and the rate of identification by physicians was very low.