Objective To explore a feasible and effective method of purse-string suture and traction in proce- dures for prolapse and hemorrhoids(PPH)with circular stapler.Methods Width of resected mucosal band and ex- tent of residual hemorrhoid mucosal lifting were compared between two groups of patients with hemorrhoids receiv- ing PPH with“two-point retraction”method(group one,110 cases)and other retraction methods(group two,40 cas- es).Results For group one of 110 cases with“two-point retraetion”,resected mucosal band of all cases were intact and and average width ranged from 3.5 to 5cm.There was a completely residual hemorrhoid mucosal lifting(com- plete return of prolapsed hemorrhoid into the anal canal)in 100 cases of group one(91%).But in group two with other retraction methods,average width of resected mucosal bands ranged from 0.2 to 3.5cm and there was an in- complete band in 10 cases(25%).The rate of mucosal lifting in this group was only 62.5%(19/40).Conclusion Two-point retraction is a feasible,effective and simple method in PPH,resulting in an intact resected mucosal band and sufficient hemorrhoid mucosal lifting.So the two-point retraction PPH is worth to be extended for application.

Objective To detect the relationship of blood pressure variability (BPV) and angiotensinogen(AGT) T235M polymorphism with Binswanger's disease (BD).Methods Totally 122 cases with BD and 108 cases with essential hypertension had been enrolled.Ambulatory blood pressure monitoring was used to get the data of BPV and mean blood pressure (MBP).PCR-RFLP was applied to detect genotype of AGT T235M.Results Distribution of MM+MT genotype and frequency of M allelic were higher in BD group (51.6％,29.9％) than in hypertension group(27.8％,16.2％)(x2 ＝13.543,11.995,P＜0.01).The variability of night time blood pressure (11.8±2.8,9.1±2.5) and 24 hours diastolic blood pressure(11.6±6.0) in BD group were increased compared with those in hypertension groups(10.9±2.4,8.2±3.2,10.1±4.6)(t＝2.59,2.64,2.09,all P＜0.05).Prevalence of anti-dipper was higher in BD group (32.8％) than in EH group (16.7％)(x2 ＝7.894,P＜0.01).Among BD patients,anti-dipper who carried MM or MT genotypes (44.4 ％) was more than that who carried TT genotype (20.3％) (x2 ＝ 8.760,P＜ 0.01).Conclusions Fluctuations of nighttime blood pressure and diastolic pressure are higher in patients with BD,and the relative frequency of MM or MT genotype is higher.Moreover,among patients with BD who carried MM or MT genotypes are apt to have anti-dipper.MM or MT genotype is related to BD by means of affecting blood pressure circadian rhythms probably.

Objective To observe whether calreticulin-induced mitochondrial dysfunction is involved in cardiomyocyte hypertrophy induced by angiotensin Ⅱ (AngⅡ).Methods Primary culture of neonatal rat cardiomyocytes was further confirmed by immunocytochemistry.The cardiomyocytes were randomly divided into model group,valsartan group and control group.The model group was subdivided into three groups which were separately treated with 1 0-8 mmol/L, 1 0-7 mmol/L, and 1 0-6 mmol/L Ang Ⅱ. Calreticulin expression, mitochondrial membrane potential level, enzyme activities, cell surface area and protein synthesis rate were observed.Results Cell surface area and protein synthesis rate were both increased in model groups compared with control group.Mitochondrial membrane potential level and enzyme activities were lower in model groups than in control group,while calreticulin expression was up-regulated.Pretreatment with valsartan partially reversed all the above changes.Conclusion Mitochondrial dysfunction induced by calreticulin may be an important mechanism of myocardial hypertrophy.

[ ABSTRACT] AIM:To observe the effect of high glucose on the protein expression of calreticulin ( CRT) and its association with cell apoptosis and mitochondrial dysfunction in the cardiomyocytes.METHODS: AC-16 cardiomyocytes were randomly divided into normal glucose group, high glucose group, high glucose+CRT siRNA group and isotonic con-trol group.The cell apoptotic rate, reactive oxygen species (ROS), mitochondrial membrane potential level, respiratory enzyme activity, and protein expression of CRT were observed.RESULTS: Compared with the cardiomyocytes in normal glucose group, the apoptotic rate and ROS production of cardiomyocytes increased in high glucose group, accompanying with the decreases in the mitochondrial membrane potential level and enzyme activitiy of the respiratory chain.The protein expression of CRT was significantly increased in high glucose group.However, compared with high glucose group, high glucose+CRT siRNA decreased the expression of CRT and attenuated the damage of mitochondria, but CRT siRNA did not reduce the ROS level in cardiomyocytes.CONCLUSION:High glucose brings about CRT over-expression to induce mito-chondrial injury, thus increasing myocardial apoptosis.

Objective:To investigate the current status and influencing factors of stroke patients.Methods:Using stratified sampling method, 458 stroke patients was investigated for the health behavior from October to December, 2015. Based on PROCEDE-PROCEED model, logistic regression analysis was conducted with the health behavior level of the subjects as the dependent variable, and the characteristic factors in the chi-square test as the independent variables to analyze the factors which influence the health behavior level of stroke patients from predisposing factors, enabling factors and reinforcing factors.Results:The health behavior score of stroke patients was (14.5±3.9), which was at medium level. The score of each dimension was nutrition (0.80±0.25), disease management (0.60±0.26), interpersonal relationship (0.57±0.33), and medication compliance (0.49±0.41). The multiple logistic regression analysis showed that the predisposition factors including age ( OR=2.03, 95% CI=1.08-3.80) and history of hypertension( OR=2.35, 95%=1.16-4.76), the enabling factors including the allocation of social resources ( OR=1.73, 95% CI=0.89-3.36), and the reinforcing factors including family support ( OR=2.03, 95% CI=0.99-4.17) were important factors which affect the health behavior of stroke patients. Conclusion:The health behavior level of stroke patients need to be improved. The relevant community resource allocation system continuously, and focus on the impact of family environment and particularly the elderly and patients with a history of hypertension should be attentioned when improving the health behavior of patients.

Objective To explore the changes of cardiac structure and function in streptozotocin (STZ)-induced diabetic cardiomyopathy (DCM)rats so as to detect the level of angiotensinⅡ (AngⅡ)in blood and the myocardium and illuminate the role of AngⅡ in DCM.Methods We randomly divided 30 SD rats into control group and DCM group (which received a single injection of streptozotocin,65 mg/kg).The changes of cardiac structure and function were observed by ultrasonic cardiogram at the end of 16 weeks after injection.Then the changes in the myocardium were also analyzed by using hemotoxylin and eosin staining and Sirius red staining.The level of AngⅡ in blood was tested by radioimmunoassay.The expression of AngⅡ in the myocardium was detected by immunofluorescence. Results Compared with those of the controls,the hearts were dilated in DCM rats accompanied with cardiac dysfunction.There were significant increases in LVEDd,LVESd,LVEDv,and LVESv but decrease in LVEF (P <0.05).There were arrangement disorder and hypertrophic cardiomyocytes in DCM.Then the fibrosis area of DCM was significantly increased compared with that of the controls.The level of AngⅡ in blood and myocardium was significantly higher in DCM than in controls.At the same time,Pearson analysis revealed that the level of AngⅡ in blood was positively related to the collagen content of myocardium (r =0.907,P <0.05).Conclusion Our study provides experimental evidence that AngⅡ plays an important role in myocardial fibrosis of DCM.

Objective To investigate the pathological features of blood vessel inflammation in facioscapulohumeral muscular dystrophy ( FSHD ) and the role of vasculitis on the pathogenesis of FSHD. Methods The clinical manifestations and myopathological features of 26 FSHD patients were retrospectively analyzed and summarized. All of the patients were divided into 2 groups; inflammatory infiltration group and non-inflammatory infiltration group. The latter was further divided into 3 subgroups;endomysial inflammation subgroup, perivasculitis subgroup and transmural vasculitis subgroup.Immunohistochemical staining were carried out in inflammatory infiltration group with anti-CD3, anti-CD4,anti-CD8,anti-CD20 and anti-SMA antibody. The control group was composed of 10 dermatomyositis ( DM)cases and 10 polymyositis ( PM) cases. Results The age of onset was (25. 2 ± 12. 6) years old and the average course was (7. 8 ±7. 3) years. The sex ratio of male to female was 1.6: 1. Five of them had family history. The main clinical features were progressive weakness and atrophy of facial, shoulder girdles and proximal upper limbs muscles. The lower distal limbs and (or) lower distal limbs and pelvic girdle muscles were involved in 18 cases. The main pathological features were shown as followed. Seventeen of them had focal inflammatory cell infiltration, including endomysial inflammation (4/17) , perivasculitis (7/17) , and transmural vasculitis (6/17). Immunohistochemical staining confirmed the major types of inflammatory cells were CD4* T lymphocytes and CD20B lymphocytes, which was familiar with DM. While in PM, CD8+ T lymphocytes were dominant The proportionality of residual muscle fibers obviously decreased in inflammatory infiltration group ( 48. 0% ± 23. 6% ) than non-inflammatory infiltration group ( 94. 3% ±3. 1% , T = 198. 000, P = 0. 000). As to CK levels, there were no significant deviation. Conclusions Obvious inflammatory cell infiltration can be seen in FSHD, the locations of inflammatory cells are endomyosium inflammation, perivasculitis and transmural vasculitis. Transmural vasculitis indicates vascular pathological factor may have something to do with pathogenesis of FSHD.

To explore the mechanisms of Xiaotan Sanjie Decoction (XTSJD), a compound traditional Chinese herbal medicine, in inhibiting the tumor growth and preventing recurrence by testing the protein expressions of interleukin-8 (IL-8) and its receptors chemokine receptor 1 (CXCR1) and chemokine receptor 2 (CXCR2) in gastric tumor xenografts and gastric tissue adjacent to the tumor in mice.

Objective To evaluate the influence of laparoscopic uterine artery ligation on ovarian function. Methods In this retrospective study ,46 patients with laparoscopic myomectomy were selected and randomly divided into Ligation group and Non-Ligation group. The serum concentrations of follicular stimulating hormone (FSH), luteinizing hormone ( LH), estrogen ( E_2) were measured be-fore treatment and 1 ,3 ,6,12 months after treatment. Ovulating functions of ovary were monitored. All results were compared between two groups. Results All patients ovulated after 6 months. There were no significant differences between two groups in the levels of FSH, LH and E_2,.before and after treatment(P>0.05). Conclusions Laparoscopic uterine artery ligation do not affect ovarian function of pa-tients with uterine leiomyoma.

Objective To examine the changes of histological parameters of radial artery in uremia,and to explore their effects on arterial stiffness.Methods Sixty uremic patients underwent arteriovenous fistula surgery for hemodialysis and 20 healthy subjects received healthy examination were collected as uremia group and control group, respectively.Segments of radial arteries were obtained from all of uremic subjects and were evaluated by HE, Masson, van Kossa staining and electron microscopy.The expressions of osteopontin (OPN), α-SMA and elastin in arterial wall were detected by immunostaining, and apoptotic cells were determined by TUNEL assay.All of the subjects in the two groups received brachial ankle pulse wave velocity (baPWV) examination and the results were compared.The associations among histological parameters and baPWV were analyzed.Results More than one half (34/60) of artery samples presented uniformly thickening intima, in which most of cells expressed α-SMA and a few cells underwent apoptosis.The subendothelial matrix was abundant in collagen fibers, and no calcium deposition was found.The media thickened obviously, with increased collagen fibers, reduced elastin, unchanged α-SMA expression, and a few apoptotic smooth muscle cells.Two thirds uremic arteries expressed OPN, of which only one half had significant calcium deposition.The adventitia thickened and no calcium deposition was found.The baPWV level in uremic subjects was ( 18.5 ± 3.2 ) m/s, far greater than that in control subjects ( P ＜ 0.001 ).Statistical analysis showed that baPWV value was correlated with media thickness, calcification degree, and collagen content positively, and with elastin expression negatively.For diabetic uremic subjects, the OR values of vascular calcium deposition and remarkably-elevated baPWV value were 3.1, 2.3, respectively.Conclusions Radial arterial intima often presents hyperplasia which is not related with baPWV increment in uremia.Arterial media calcification and collagen content incremental are the most two protuberant characteristics in uremia, especially in ones accompanied with diabetes.Medical calcification, collagen accumulation, and e]astin reduction may contribute to the increased arterial stiffness in uremia.