Objective Adenosine receptor agonist NECA has a certain myocardial protection, but the specific mechanism is not clear.This paper aimed to study the effect and mechanism of NECA inhibiting endoplasmic reticulum stress to against myocardial ischemia reperfusion injury in rats.Methods 56 Wistar rats of SPF grade were selected and divided into Sham group, I/R group, NECA group and TUDCA group through random number table method.We established the isolated rat heart ischemia reperfusion model by using the Langendorff device.Sham group: heart threaded but not ligated, Kerb-Henseleit buffer continuous infusion 170min;I/R group: heart stability 20min, ischemia 30min, reperfusion 2h;NECA group and TUDCA group: heart stability 20min, ischemia 30min, reperfusion 2h, perfusion solutions containing 0.1μmol/L NECA and 30μmol/L TUDCA were respectively given at 5min before reperfusion, and ended at 30min after reperfusion.Transmission electron microscope was used to evaluate alterations of the myocardial ultrastructures.Western blot analysis was used to detected the expression levels of endoplasmic reticulum stress IREl-XBPl signaling pathway marker protein IRE1α, XBP1s.Immunohistochemical staining was used to detect the expression of IRE1α.Results The results of transmission electron microscopy showed that most of the myofilament ruptured, sarcomere contracture deformation, visible mitochondrial vacuoles degeneration in I/R group, and injury in NECA group and TUDCA group were less than the I/R group, appeared as the filaments arranged more neat, sarcoma only had mild contracture.Immunohistochemical results showed that IRE1αpositive staining was not found in the sham group, and the area of positive staining of IRE1α in I/R group was significantly increased, while the NECA group and TUDCA group were significantly decreased.Compared to the Sham group, the expression level of IRE1α and XBP1s was significantly increased in I/R group(P<0.05);but compared with the expression level of IREα and XBP1s in I/R group(1.72±0.27, 0.97±0.19), the NECA group(1.14±0.16, 0.6±0.13) and the TUDCA(1.07±0.27, 0.58±0.15) group were significantly decreased(P<0.05).Conclusion NECA can reduce endoplasmic reticulum stress through inhibiting IREl-XBPl pathway to protect the myocardium.

Objective To determine whether it is necessary to execute pre-labor pubic shaving.Methods Women(336 cases)who received pubic shaving through vaginal delivery from 2003 to 2006 were set as the control group.Women(103 cases)who were waiting for delivery currently in our hospital were set as the test group.The test group only received perineal cleaning without pubic shaving.If episiotomy was needed during the operation,the perineal hair Was cut by scissors.The perineum infectious rate and postpartal infection Was compared in the two groups.We interviewed the patients attitude for pubic shaving and counted the numing time used for pubic shaving.Results The perineal infection in the test group was 5.8%,which was no statistically different from that of the control group(2.4%),U=0.33,P＞0.05.Totally 95% women in the test group support this method demonstrated humanization.In the telephone folow-up visit for patients in the control group they comphined itch and discomfort during the regeneration of pubes.The average numing time for pubic shaving Was(4.6±0.6)minutes.Conclusions No pubic shaving for pre-labor skin preparation was feasible.If operation was disturbed by pubes we could use scissors to cut it short.This method could reduce the skin infection and propagation of blood-derived infectious disease.It increased the comfort of parturient,saved time and proved to be a nursing method of humanization.

Objective To explore the feasibility and safety of dexmedetomidine sedation in interventional neuroradiology operations.Methods Eighty-five cases ASA grade Ⅱ-Ⅲ grade patients undergoing cerebral angiography according to age divided into two groups:old group(more than 60 years old,35 cases) and young group (18-59 years old,50 cases).The loading dose of dexmedetomidine were dexmedetomidine 0.5 μ g/kg in old group and 1.0 μ g/kg in young group,respectively.The loading dose was administered for 10 min followed by continuous infusion dexmedetomidine 0.5 μ g/ (kg· h).Blood pressure,heart rate (HR),peripheral oxygen saturation (SpO2) and respiratory rate (RR),Ramsay score and bispectral index(BIS) were monitored and recorded during the study.Results The BIS,Ramsay score after administration 10,15,30,45 min in two groups was significantly longer than that before administration [old group:84 ±22,83 ±22,85 ± 15,75 ±23 vs.94 ±5; (2.0 ±0.4),(2.3 ±0.6),(2.8 ±0.7),(3.0 ±0.7)scores vs.(1.7 ± 0.5) scores; young group:91 ± 8,89 ± 11,86 ± 12,81 ± 13 vs.96 ± 2; (1.9 ± 0.6),(2.3 ±0.7),(2.7 ± 0.9),(3.0 ± 0.9) scores vs.(1.6 ± 0.5) scores,P ＜ 0.05].The systolic blood pressure,diastolic blood pressure,mean arterial pressure (MAP) after administration 10,15,30,45 min in two groups was significantly longer than that before administration [old group:(152 ± 23),(144 ± 23),(140 ± 21),(135 ±21) mm Hg(1 mm Hg =0.133 kPa) vs.(165 ± 25) mm Hg; (87 ± 11),(83 ± 11),(78 ± 8),(75 ± 8) mm Hg vs.(89± 13)mm Hg;(106±14),(100±13),(99±12),(95±12)mm Hg vs.(113±16)mm Hg;young group:(131 ± 24),(127 ± 23),(124 ± 25),(124 ± 26) mm Hg vs.(142 ± 23) mm Hg; (81 ± 13),(79±13),(77±13),(76±13)mmHgvs.(86± 14) mmHg;(97±16),(94±16),(91±19),(92±20) mm Hg vs.(104 ± 19) mm Hg,P ＜0.05],but the decreases in blood pressure were ＜20％ from baseline.The HR,RR and SpO2 was no significant difference (P ＞ 0.05).Conclusions Continuous infusion of dexmedetomidine sedation during cerebral angiography has little effect on hemodynamics,no significant respiratory depression,is safe and effective.

Objective To investigate the relationship between diabetes and bone metabolism and the potential epigenetic mechanisms. Methods BMSCs were cultured for 7 and 15 days in cell culture medium with different concentrations of glucose. The mRNA and protein expression of HDACs and osteogenesis-related genes were detected by RT-PCR and Western blot assay ,respectively. Moreover ,the combination of HDAC to the promoter region of Runx2 was tested by the chromatin immunoprecipitation (ChIP) assay. Results ThemRNA expression of osteogenesis-related genes ,incuding OCN(P < 0.05)and Col1(P < 0.05),in the bone marrow of diabetic mice was significantly reduced compared with the control mice. The mRNA and protein expression of ALP ,OCN ,Runx2 and OSX was gradually reduced with the increasing concentration of glucose ,while HDAC2 mRNA and protein expression was increased. The binding activity of HDAC2 to the upstream and downstream of Runx2 promoter region in 25mM glucose-treated BMSCs was higher than the control group(P < 0.05). Conclusoins Diabetes might repress osteogenesis of BMSCs via inhibiting the activity of Runx2 through upregu-lating the expression of HDAC2.

Acupuncture Points ; Acupuncture Therapy ; methods ; Adult ; Aged ; Catgut ; Female ; Humans ; Male ; Middle Aged ; Phlebotomy ; Trigeminal Neuralgia ; therapy

Objective To report the integrated progress of the hydatid disease information management system,and to pro-vide the reference for further system improvements by analysis of results on simulation test feedback. Methods The work of in-stitutional code matching by collecting fundamental and integrated information of the system in epidemic areas of hydatid disease was carried out,and professional control agencies were selected to carry out the simulation test. Results The results of agen-cies code matching at stage indicated the average completion rate was 94.30% on administrative agencies,69.94% on registered professional agencies and 56.40% on professional institutions matching related to hydatid disease prevention and control imple-ments in seven provinces(autonomous regions)and Xinjiang Production and Construction Corps. Meanwhile,the response rate of open-ended proposals was 93.33% on fifteen feedbacks,and the statistics showed 21.43% believed the system was low fluen-cy,64.29% considered the system was inconvenience for data inputs and 42.86% considered it would be improved on system sta-tistics functions,of which 27.78% were provincial users,22.22% were the city users and 50.00% were the county users. Con-clusion The hydatid disease prevention information management system meets the fundamental needs of the majority agencies in hyperendemic areas of echinococcosis,it needs to develop the further test with more agencies joining after the work of the in-stitutional code matching completion and the system service improvement in the next stage.

The teaching method, teaching process and teaching model of programming course were reformed in Beijing University of Traditional Chinese Medicine by combining task-driven and flipped classroom teaching con-cept with BB network platform to provide a free and open environment for students in order to train their capability of analyzing and solving problems and the skills of independent learning and life-long learning. Good results were achieved in two rounds of task-driven plus flipped classroom teaching, which are of significance for the teaching model and teaching structure reform of other courses.

Objective To explore the significance of transvaginal color Doppler ultrasound in the diagnosis of cervical carcinoma. Methods 45 patients undergoing surgery for cervical carcinoma were enrolled. Transvaginal color Doppler flow imaging was performed preoperatively to detect the arterial blood flow signals within the tumors and the lowest resistance index (RI) value was recorded for analysis. Results Significant difference RI values were noted in cervical carcinoma group compared with contrast group (P <0.001). RI were associated with tumor diameter, stage status, pathologic grade and pelvic lymph node metastasis of cervical carcinoma(P < 0.05). There were no relations between RI and patients's age and pathologic type (P >0.05). Conclusion The angiogenesis character of cervical carcinoma can be showed by RI, and RI had some inherent connections with clinicopathologic parameters of cervical carcinoma. Transvaginal color doppler ultrasound could accurately predict angiogenesis of cervical carcinoma preoperatively and be of importance in the diagnosis of cervical carcinoma. It could provide standard in prognosis evaluation.

ObjectiveTo investigate the effect of clinical pathway teaching methord in nursing practice teaching. Methods80 junior college nursing students were randomly divided into control and experimental groups. Traditional clinical teaching method was given to control group, while the clinical pathway teaching method was given to observation group. Scores of comprehensive quality after departmental rotation and satisfaction rates of nursing students to teaching method in these two groups were evaluated. ResultsThe experimental group was significantly better than the control group ( P＜0.05 ), and the difference was statistically significant. ConclusionThe clinical pathway can significantly improve the quality of nursing practice teaching.

Objective To establish a new RP-HPLC method for simultaneous determination of chlorogenic acid,forsythin, and baicalin in shuanghuanglian powder for injection after ultrasonic atomization. Methods Hypersil ODS2 C18(250 mmí4. 6 mm,5 μm) was used as the chromatographic column. The mobile phase was methanol-0. 2% phosphate acid solution (4060). Flow rate was 1. 0 mL·min-1 . Sample volume was 5μL. Column temperature was 30℃. Detection wavelength was 324 nm at 0-10 min and 277 nm at 10-25 min. Results Contents of chlorogenic acid,forsythin, and baicalin had good linear relationship with the respective peak area (r≥0. 999 7) within the scope of the sample volume. The RSD was <2% for precision, reproducibility, and stability. Recovery rate was 98. 50%-101. 12% (n=6). Conclusion The method is rapid, accurate and reproducible, with high resolution. It can determine the content of three kinds of components at the same time. The three components in shuanghuanglian powder for injection did not change significantly before and after ultrasonic atomization.