Objective To investigate the level of self-perceived burden(SPB) and analyze the influencing factors in continuous ambulatory peritoneal dialysis(CAPD) patients.Methods One hundred and ten CAPD patients were investigated by a self-designed demographic questionnaire and Self-Perceived Burden Scale (SPBS).Results The total score of SPBS was (30.27±7.88) points,being in a middle level,and 85.45％ of the patients showed different levels of burden.Single factor analysis showed the influencing factors of self-perceived burden were marital status,family per capita income,the main caregivers and selfcare ability.Conclusions Most CAPD patients have obvious self-perceived burden,nursing staff should use the relevant nursing measures to reduce the SPB with CAPD patients and improve their quality of life.

Objective To evaluate the role of chemokine receptor CXCR4 in spinal dorsal horn in the development of morphine tolerance in rats with bone cancer pain (BCP).Methods Forty female Sprague-Dawley rats,weighing 180-220 g,were equally randomized into 5 groups using a random number table:sham operation group (group S),BCP group (group B),BCP + AMD3100 (specific CXCR4 antagonist) group (group BA),BCP + morphine group (group BM),BCP + morphine + AMD3100 group (group BMA).BCP was induced by injecting Walker 256 mammary gland cancer cell suspension (4 × 105 cells/ml) 5 μl into the bone marrow of the right tibia of rats anesthetized with chloral hydrate.On 6 days after injection of mammary gland cancer cells,AMD3100 2 mg/kg was intraperitoneally injected twice a day for 9 days in BA group,and morphine 10 mg/kg was subcutaneously injected twice a day for 9 days in BM group.AMD3100 was intraperitoneally injected and morphine was subcutaneously injected as previously described at the corresponding time point in BMA group.Before injection of mammary gland cancer cells (T0) and on 4,6,8,10,12 and 14 days after injection of mammary gland cancer cells (T1-6),paw withdrawal threshold to von Frey hair mechanical stimulation (PWMT) was measured.The rats were then sacrificed and L3-5 segments of the spinal cord were removed for determination of c-fos expression in spinal dorsal horn using immunofluorescence.Results Compared with S group,PMWT was significantly decreased at T2-6 in B and BA groups and at T4-6 in BM group,and c-fos expression was up-regulated at T6 in BM group (P ＜0.01).PMWT was significantly higher at T3-5 in BM group and at T3-6 in BMA group than in group B (P ＜ 0.01).Compared with BM group,PMWT was significantly increased at T5,6 and c-fos expression was down-regulated at T6 in BMA group (P ＜ 0.01).Conclusion Chemokine receptor CXCR4 in spinal dorsal horn is involved in the development of morphine tolerance in rats with BCP and the mechanism may be related to activation of c-fos.

Long non-coding RNA (lncRNA) is defined as non-protein coding transcript longer than 200 nucleotides. In the form of RNA, it affects gene expression at the epigenetic, transcriptional and post-transcriptional levels, and is widely involved in the body's pathophysiological processes. This review summarizes the research progress of lncRNA in the field of parasitology in order to find new targets for the prevention and treatment of parasitic diseases.

Objective To evaluate the role of chemokine CXCL12 in the spinal cord in the development of bone cancer pain (BCP) in rats and the relationship with microglial activation.Methods Thirty-two female Sprague-Dawley rats,weighing 180-220 g,were equally randomized into 4 groups (n =8 each) using a random number table:sham operation group (group S),BCP group (group B),BCP + CXCL12 neutralizing antibody group (group BC),and BCP + IgG control antibody group (group BI).BCP was induced by injecting Walker 256 mammary gland cancer cell suspension (4 × 105 cells/ml) 5 μl into the bone marrow of the right tibia of rats anesthetized with chloral hydrate in B,BC and BI groups,while the equal volume of normal saline was injected instead in group S.On 12,13 and 14 days after injection of mammary gland cancer cells,CXCL12 neutralizing antibody 10 μg/15 μl was intrathecally injected once a day in group BC,while IgG control antibody 10 μg/15 μl was intrathecally injected once a day in group BI.Before injection of mammary gland cancer cells (T0) and on 3,5,7,10,12 and 14 days after injection of mammary gland cancer cells (T16),paw withdrawal threshold to mechanical stimulation (PWMT) was measured.The rats were then sacrificed and L4,5 segments of the spinal cord were removed for determination of Iba-1 (pan-microglial marker) expression in spinal dorsal horn using immunofluorescence after PWMT measurement at T6.Results Compared with S group,PMWT was significantly decreased at T2-6,and Iba-1 expression was up-regulated at T6 in B,BC and BI groups (P ＜ 0.01).Compared with B group,PMWT was significantly increased at T5,6 and Iba-1 expression was down-regulated at T6 in BC group (P ＜ 0.01).Conclusion Chemokine CXCL12 in the spinal cord is involved in the development of BCP,and microglial activation is involved in the mechanism.

Fifty-four simulated tooth roots made of polymethacrylate (PMMA) were divided into six groups according to the root canal convergence angles of 0 degrees, 3.93 degrees, 5.71 degrees, 7.48 degrees, 11.31 degrees, 14.71 degrees. Cast post and cores were manufactured and cemented with Zinc phosphate cement (ZP). The retention capacities of the posts were tested. The bonding strength of ZP at different convergence angles were tested with some casted wafers, and linear regression was made. So the effect of interlocking and the proportion could be calculated. With these results, we made some curvilinear regressions. The results showed that the retention of cast post declined and the bonding strength of ZP fell with the increase of convergence angles. There were significant differences in the bonding strength and retention among groups, P<0.05. The experiment indicates that the dentists should reduce the convergence angles of posts as much as possible to obtain greater retention.
Cementation ; Crowns ; Dental Prosthesis Retention ; Dental Stress Analysis ; Post and Core Technique ; Tensile Strength

Objective To discuss the surgical treatment of intraductal papillary mucinous neoplasms of the pancreas (IPMN).Methods The clinical data of 42 IPMN cases undergoing surgical treatment in our hospital during the past 4 years were analyzed retrospectively.Results Routine CT or MRI examination was made in 42 cases,ERCP in 6 cases,ultrasonic endoscopy in 12 cases,fine needle biopsy by endoscopic ultrasonography in 4 cases.There were 12 cases of the main duct IPMN,24 cases of branch duct IPMN,6 cases of mixed IPMN.Pancreatoduodenectomy was performed in 24 cases;6 cases underuent laparoscopic central pancreatectomy;10 cases did distal pancreatectomy,2 cases did total pancreatectomy.Postoperative pathology revealed that the malignant transformation rate of main pancreatic duct type was 66.7％,that of BD-IPMN was 12.5％ and 66.7％ of Mix-IPMN.The postoperative complication rate was 26.2％.All cases were followed up for 1 month to 4 years,with no tumor recurrence.Conclusions Imaging examination combined with endoscopic ultrasonography is the main method for clinical diagnosis of IPMN.The malignant transformation rate of MD-IPMN and Mix-IPMN is high.Most of the BD-IPMN is hyperplasia and adenoma.

Background and purpose:The third generation of aromatase inhibitors (AI) in postmenopausal hormone receptor-positive patients is the routine treatments in endocrine therapy. The 500 mg fulvestrant showed clini-cal beneifts in patients with previous AI treatment. This study aimed to access the effcacy and safety of 500 mg fulves-trant in estrogen receptor (ER) positive postmenopausal patients who had previous AI treatments with locally advanced and metastatic breast cancer.Methods:This study retrospectively analyzed the clinical data from 188 post-AI ER positive and (or) progesterone receptor (PR)-positive locally advanced and metastatic breast cancer patients treated with 500 mg fulvestrant in Fudan University Shanghai Cancer Center from Jul. 2011 to Dec. 2015. Primary end point was progression-free survival (PFS). Secondary end points were objective response rate (ORR), clinical beneift rate (CBR) and safety proifle.Results:After the median follow-up of 11.3 months, median PFS was 5.9 months (95%CI: 4.2-7.5), CBR was 40.0% and ORR was 3.4%. COX proportional hazards regression analysis indicated that PFS was correlated with the number of metastatic sites (HR=1.92, 95% CI: 1.2-2.9,P =0.002) and previous lines of chemotherapy (HR=1.52, 95%CI:1.0-2.1,P=0.022). Six patients stopped the treatment for intolerable adverse events.Conclusion:The treatment of 500 mg fulvestrant has a favorable effcacy and safety in treatment of post-AI ER positive postmenopausal patientswith metastatic breast cancer.

Objective To investigate the prevalence of feeding intolerance (FI),and to explore the FI within 7 days of ICU admission in association with clinical outcome in critically ill patients.Methods The adult patients from 14 general ICUs in Zhejiang Province with an expected admission to ICU for at least 24h were recruited from March 2014 to August 2014,and all clinical,laboratory,and survival data were prospectively collected.The AGI (acute gastrointestinal injury) grade was daily assessed based on gastrointestinal (GI) symptoms,feeding details and organ dysfunction within the first week of ICU stay.The intra-abdominal pressures (IAP) was measured using AbViser device.Results Of 550 patients enrolled,418 were assessed in GI symptoms and feeding details within 7 days of ICU stay.The mean age and SOFA score were (65.1 ± 18.3) years and (8.96 ±4.10),respectively.Of them,355 patients (84.9％) were under mechanical ventilation support,and 37 (8.85％) received renal replacement therapy.The mean length of time for enteral feeding was (30.8 ±26.2) h,and the prevalence of FI on the 3rd and 7th day of ICU stay accounted for 39.2％ and 25.4％,respectively.Compared to those with FI within 7 days of ICU stay,the patients without FI had higher rate of successively weaning from mechanical ventilation (21.3％ vs.5.7％,P =0.003) and higher rate of withdrawal of vasoactive medication (45.5％ vs.20.0％,P =0.037),as well as lower mortality rate of 28-day (24.4％ vs.38.7％,P =0.004) and 60-day (29.6％ vs.44.3％,P =0.005).In multivariate Cox regression model with adjustment for age,sex,participant center,serum creatinine and lactate,AGI grade on the first day of ICU stay,and comorbidities,the FI within 7 days of ICU stay (x2 ≥ 7.24,P ＜ 0.01) remained to be independent predictors for 60-day mortality.After further adjusted for SOFA score,the FI within 7 days of ICU stay (HR =1.71,95％ CI:1.18-2.49;P =0.006) and AGI grade on the first day of ICU stay (HR =1.33,95 ％ CI:1.07-1.65;P =0.009) could provide independent prognostic values of 60-day mortality.Conclusions There is high rate of FI occurred within 7 days of ICU stay,and is significantly associated with worse outcome.In addition,this study also provides evidence to further support that measurement of gastrointestinal dysfunction could increase value of SOFA score in outcome prediction for the risk of 60-day mortality.

OBJECTIVE: To investigate the effect of thoraco-laparoscopic esophagectomy on postoperative immune function of patients with esophageal carcinoma. METHODS: Eighty-one patients undergoing radical esophagectomy in our hospital between January, 2017 and December, 2019 were enrolled in this study.According to the surgical approach, the patients were divided into endoscopic group (41 cases) and open surgery (3 incisions) group (40 cases).The immunological indicators (CD3 RESULTS: No death occurred in either of the group after the operation.On days 4 and 7 after the operation, CD3 CONCLUSIONS Thoraco-laparoscopic resection of esophageal cancer can reduce postoperative secretion of proinflammatory factors, alleviate inflammatory responses, and promote the recovery of immune functions to accelerate postoperative recovery of the patients.
Carcinoma, Squamous Cell/surgery* ; Esophageal Neoplasms/surgery* ; Esophagectomy ; Humans ; Laparoscopy ; Postoperative Complications ; Postoperative Period