Seven compounds were isolated from the alcohol extract of leaves of Ipomoea batafas Lam,by column chromatography on silica gel. They were identified by physical and chemical methods as quercetin-3-glucoside (Ⅰ), kaempferol-4＇, 7-dimethyl ether(Ⅱ), ombuin (Ⅲ),quercetin (Ⅳ), quercetin-3＇, 4＇, 7-trimethyl ether(Ⅴ), ?-sitosterol (Ⅵ) and sucrose (Ⅶ).All of them were isolated from this plant for the first time.

AIM: To optimize the parameters of processing for Arctium Lappa.METHODS: The contents of arctiin and arctigenin in Arctium Lappa were determined with HPLC,and the total yields of them were chosen as in-dex.The orthogonal test was adopted to acquire the optimum technology for processing Arctium Lappa.RESULTS: The study showed that the best processing parameters for Arctium Lappa consisted of 300 ℃ of the drying tempera-ture and 4-5 minutes of processing time.CONCLUSION: The processing method is reasonable,stable and reliable,and can be used in commercial production.

Objective To assess the relationship between mitochondrial DNA (mtDNA) ND2 gene C5178A polymorphism and complications of cardio-cerebral-vascular in patients with type 2 diabetes mellitus (T2DM).Methods This is a case-control study.448 unrelated patients with T2DM were collected from Zhejiang Provincial People's Hospital from 2010 to 2011,including 274 males and 174 females.Direct nucleotide sequencing analysis was used to screen mtDNA ND2 gene C5178A genotyping in ）patients.Meanwhile,detailed clinical and laboratory information for all of study subjects were collected.Body mass index (BMI),blood pressure,blood lipid,blood glucose and incidence rate of cerebral infarction were compared between 5178C patients and 5178A patients.Furthermore,according to the genotyping results,we 2analyzed whether these differences exist in patients with different gender by using t test or x2 test.Results 348 out of 448 patients with T2DM were C carriers and the remaining patients were A carriers.There're significant differences between T2DM patients with 5178A and T2DM patients with 5178C on systolic pressure (124.6 mm Hg ± 9.0 mm Hg vs 127.8 mm Hg ± 10.7 mm Hg,t =2.700,P =0.007)and HDL (1.3 mmol/L ± 0.2 mmol/L vs 1.2 mmol/L ± 0.3 mmol/L,t =2.968,P =0.003).Moreover,the incidence of cerebral infarction in T2DM patients with 5178A (8.0％,8/100) was much lower than that with 5178C (21.0％,73/348 ; x2 =8.832,P =0.003).No statistical gender difference was found in the distribution of C5178A (P ＞ 0.05).Our results also revealed that the female T2DM patients with 5178A had a lower serum triglyceride (1.5 mmol/L ±0.8 mmol/L; t =2.601,P =0.011) and lower systolic pressure (123.6 mm Hg±6.6 mm Hg; t =2.887,P =0.004) than that with 5178C (1.8 mmol/L ± 1.0 mmol/L and 128.0 mm Hg ± 9.0 mm Hg,respectively).Furthermore,cerebral infarction was more common in female T2DM patients with 5178C (21.3％,29/136; x2 =5.232,P =0.022) than that with 5178A (5.3％,2/38).Similarly,male T2DM patients with 5178A had a much lower incidence rate of cerebral infarction (9.7％,6/62; x2 =3.946,P =0.047) than that with 5178C (20.7％,44/212).In contrary,the serum concentration of HDL was higher in male T2DM patients with 5178A (1.4 mmol/L ±0.2 mmol/L;t=3.511,P =0.001) than that with 5178C (1.2 mmol/L±0.3 mmol/L).Conclusions The polymorphism site mtDNA C5178A correlates with cerebral-cardiovascular complications in patients with type 2 diabetes mellitus.mtDNA 5178A allele may protect T2DM patients from developing cerebral-cardiovascular diseases through regulation of blood pressure and lipid metabolism.

Objective To determine the optimal cut-off value of critical-care pain observation tool (CPOT) in assessing degree of pain in patients undergone craniotomy, and to determine the sensitivity and specificity of CPOT with this cut-off value. Methods A prospective observational study was conducted in Beijing Tiantan Hospital. A total of 118 patients admitted to intensive care unit (ICU) after craniotomy was consecutively enrolled during August 2014 to August 2015. CPOT and visual analogue scale (VAS) were used to assess the pain before, during and 20 minutes after the removal of central venous catheters, and the difference was compared between two scores at three time points. Receiver operating characteristic (ROC) curve was used to determine the optimal cut-off values for evaluation of the sensitivity and specificity of CPOT. Patients' complaint of pain was considered the gold-standard. Results CPOT values (inter-quartile range) before, during and after the procedure were 0 (0-3), 0 (0-6) and 0 (0-2), respectively; while VAS values were 4 (1, 6), 3 (1, 6) and 4 (1, 6), respectively. CPOT value during the procedure was significantly higher than CPOT values before and after the procedure (both P < 0.01). When the optimal cut-off value of CPOT was 1, CPOT showed the highest Youden index before, during and after the procedure (1.183, 1.515, and 1.438, respectively), and showed high specificity (all 100%) and low sensitivity (18.3% and 43.8%, respectively) when assessing the pain before and after the removal of the catheter. The sensitivity and the specificity were high when assessing the pain during the procedure, the sensitivity was 69.4%, and the specificity was 82.1%. When the optimal cut-off value of VAS was 2 before and during the procedure, and was 4 after the procedure, VAS showed the highest Youden index, 1.568, 1.452, and 1.509, respectively. VAS demonstrated high sensitivity and specificity before, during and after the procedure (sensitivity was 97.2%, 95.2% and 75.0%, respectively; specificity was 59.6%, 50.0% and 75.9%, respectively). The area under ROC curve (AUC) of CPOT before, during and after the procedure were 0.592 [95% confidence interval (95%CI) = 0.490-0.693], 0.778 (95%CI= 0.693-0.863) and 0.719 (95%CI = 0.627-0.811), respectively; the AUC of VAS before, during and after the procedure were 0.846 (95%CI = 0.771-0.920), 0.767 (95%CI = 0.681-0.854) and 0.838 (95%CI = 0.767-0.909), respectively. The AUC of VAS before and after the procedure was significantly higher than the AUC of CPOT (P < 0.001 and P = 0.006), while there was no significant difference between the AUC of VAS and CPOT during the procedure (P = 0.826). Conclusion CPOT can be used to assess the pain during painful procedure, and it shows high accuracy, but with poor evaluation effect on pain in rest.

Object To observe the effect of Guizhi Fuling Capsule (GFC) on prostatic hyperplasia in rats induced by testosterone propionate. Methods Seven days after the male rats were castrated, testosterone propionate (3 mg/kg) was sc injected in rats. Meanwhile, the rats were administered GFC (2.16, 1.08, 0.54 g/kg) once a day, and the treatment continued for 30 d. An hour after the final administration, the rats were put to death, and the weight and volume of prostates were measured. The construction of prostate cells was also observed under light microscope. Results In the GFC group, the weight and volume of prostate was significantly decreased compared with that in the model group (P

AIM: To study the dissolution of ginsenoside Rb1,cinnamic acid and borneol in traditional Chinese medicine Shexiang Baoxin Pill(Moschus,extract of Radix et Rhizoma ginseng,Calculus Bovis artifactus,Cortex Cinnamomi,Styrax,Venenum Bufonis and Borneolum syntheticum). METHODS: The in vitro dissolution of active components in Shexiang Baoxin Pill was performed with paddle method. HPLC was used for determination of ginsenoside Rb1 and cinnamic acid,and GC for borneol. RESULTS: The analytic method above was easy to carry out,the requirement of the specificity,accuracy,precision and stability could meet the needs of experiment well; the dissolution time T50 and Td of ginsenoside Rb1,cinnamic acid and borneol were 30. 90,33. 79 min,29. 73, 37. 11 min and 42. 38,48. 51 min respectively. CONCLUSION: The dissolution rate of three active components from Shexiang Baoxin Pills was fast and the analytic methods established in this study could be used to evaluate the quality of the preparation.

Objective To evaluate the safety and feasibility of injection test which is used to locate esophageal balloon catheter.Methods A prospective study was conducted. The patients undergoing invasive mechanical ventilation (MV) admitted to general intensive care unit (ICU) of Beijing Tiantan Hospital Affiliated to Capital Medical University from May 2015 and March 2017 were enrolled. The commercially available esophageal balloon catheter was modified to perform injection test. The catheter was withdrawn step by step and the injection test was repeated until the presence disturbance wave presented, which indicated that the balloon had just entered the esophagus. The position where disturbance wave appears was named 0 cm. End-expiratory occlusions were performed at the positions of+15,+10,+5, 0, -5, -10 and -15 cm, respectively, and the changes of esophageal pressure (Pes) and airway pressures (Paw) were measured in the spontaneous breathing and passive ventilation, and the ratio between the changes (ΔPes/ΔPaw) was calculated.Results A total of 20 patients were enrolled, of which 15 patients finished both the spontaneous and the passive ventilation parts, and 2 patients finished only the spontaneous part and 3 patients finished only passive part. ① Disturbance waves could be induced by injection test in all patients. The average depth of disturbance wave in spontaneous breathing was deeper than that in passive ventilation (cm: 42.4±3.8 vs. 41.8±3.3), but there was no significant difference between the two ventilation settings (P = 0.132). No adverse events occurred during the study period. ② Pes increased with the stepwise withdraw of esophageal catheter, reached the maximal value at+5 cm, and then decreased when the catheter was further withdrawn, no matter in the spontaneous or the passive ventilation. In spontaneous breathing, the ΔPes/ΔPaw was within the ideal range (0.8-1.2) at the positions of 0, -5 and -10 cm. The ΔPes/ΔPaw was closest to unity at the positions of 0 cm (0.98±0.15). The ΔPes/ΔPaw at -15 cm (0.66±0.26) was significantly lower than that at 0 cm (P < 0.05). For passive ventilation, the ΔPes/ΔPaw was within the ideal range at the positions of -5 cm and -10 cm, and the ΔPes/ΔPaw was closest to unity at the positions of-10 cm (0.94±0.12). The ΔPes/ΔPaw at 0 cm and -5 cm was significantly higher than that at -10 cm (1.43±0.31 and 1.12±0.14, respectively); while the ΔPes/ΔPaw at -15 cm (0.68±0.23) was significantly lower than that at -10 cm (allP < 0.01).Conclusions Ideal position of the esophageal balloon catheter could be determined quickly and easily by using injection test. The method is safe and clinically feasible.Clinical Trial Registration Clinical Trials, NCT02446938.

AIM: To investigate the expression of vascular endothelial growth factor (VEGF) and tumor necrsis factor-alpha (TNF-?) in synovium of rats with adjuvant arthritis (AA) and the relationship between the pathological score and the expression of VEGF and TNF-? protein. METHODS: AA was produced in Wistar rats by inoculating complete Freund's adjuvant (CFA). The arthral pathological score was calculated, production of VEGF and TNF-? protein were assayed by histoimmunochemical staining at different stage after CFA inoculation. RESULTS: In AA group, the pathological score and expression of VEGF protein in synovium increased significantly (P

Objective To observe the complications in children after percutaneeus closure of atrial septal defect (ASD). Methods 192 children,who successfully received percutaneous closure of ASD in our hospital were enrolled in this study. Diameter of ASD was 8.0 ～ 33.0( 16.7± 8.0) mm, the diameter of occluder was 8.0 ～ 38.0 ( 18.9 ± 8.2) mm. The follow-up term ranges from 1 month to 4 years, with a mean of 19.0 ± 4.5 months. Standard 12-lead electrocardiography (ECG) and transthoracic echocardiography (TIE) were performed before closure, 24 including: minimal-moderate residual shunt in 3 patients ( 1.6% ), atrial-ventricle block (AVB) in 1 ( 0.5 % ), sinus There were 184 cases of single-hole ASD, with complication rate of 2.7% (5/184) , including the complication rate in diameter of siagle-hole ASD less than 10mm was 0% , that in ASD between 10 mm and 20 mm was 1.7% (2/119) ,that in ASD more than 20 mm was 5.0% (3/60) ,while there were 8 cases of two- and multi-hole ASD, clusion, including 3 cases of minimal-moderate residual shunt, 1 case of atrial-ventricle block, 1 case of sinus brady-cardia, and 1 case of device-micro-malplesition. 2 days to 2 weeks after procedure, 1 case developed pelade ( 1/192 ). completely recovered (57. 1% ), including 1 case of residul shunt, 1 case of atrial-ventricle block, sinus bradycardia and 1 case of pelade. 2 cases of minimal residual and 1 case of device-micro-malposition were not recov-ered. Conclusions Transeatheter closure of ASD is safe and effective with few complications, most of which disapp-eare completely during follow up term. Long-term follow-up is needed to evaluate the progress of some rare complica-tions.

Objective To explore the effects of pigmentary epithelium derived factor (PDEF) on the phenotypic and immunologic function of murine-derived dentritic cells(BMDCs) .Methods Mononuclear cells(MNCs) isolated from murine bone marrow were cultured in RPMI1640 medium containing rmGM-CSF and rmIL-4 for 5 d ,and were divided into five groups .MNCs were stimulated for 3 d with either 50 ,100 ,200ng/mL PEDF ,1 μg/mL LPS(positive control) or RPMI1640(negative control) .The expression of CD11c ,CD80 and CD86 on DCs surface were analyzed by the fluorescence activated cell sorting (FCM ) .The ability of PEDF-induced BMDCs to stimulated T cell maturation were determined by the CCK-8 method and the level of IL-12 in the culture supernatant was detected by ELISA .Results The PEDF-treated BMDCs expressed high levels of CD11c ,CD80 and CD86 ,enhanced the immunolog-ical activities of T lymphocyte and its secretion of IL-12 when compared with untreated DCs .Conclusion PEDF can significantly up-regulate the expression of DCs immunological labelled molecule in in vitro cultured murine and increase its immunological com-petence .