Objective To obtain excellent cultivars of Salvia miltiorrhiza cultivated in Jiangsu Province by selective breeding and provide some basic reference for systemic breeding.Methods Tanshinones(tanzhinone Ⅱ_A and cryptotanshinone) and salvianolic acids(salvianolic acid A and B) in the roots of the four cultivars of S.miltiorrhiza were determined by HPLC.The total tanshinones and salvianolic acids were determined by spectrophotometry.Biomasses of four cultivars and correlative analysis between biomasses and effective components were analyzed with Excel and SPSS software.Results Accumulating of biomasses of the four cultivars was coincident incompletely.Contents of total tanshinone,tanshinone Ⅱ_A,cryptotanshinone,salvianolic acid B,danshensu,and total salviandic acids were different.Correlative analysis showed that the relativity between biomasses and contents of effective components of four cultivars were negative correlative.Relativity among liposoluble components was distinct.Correlation coefficients between tanshinone Ⅱ_A and cryptotanshinone of four cultivars were 0.943(ZY),0.942(DY),(0.715)(XY),and 0.960(ZC),respectively.Correlation coefficients between salvialic acid A and B of four cultivars were 0.766(ZY),0.416(DY),0.841(XY),and 0.618(ZC),respectively.But the relativity between hydrosoluble and liposoluble components was not obvious.Accumulating trends of liposoluble and hydrosoluble components were different.Conclusion Contents of total diterpenoids and tanshinon Ⅱ_A in little leaf cultivars are more than the contents of other three cultivars.The qualities of other three cultivars are better than the qualities of S. miltiorrhiza recorded in Chinese Pharmacopoeia.

Objective To observe the displacement of endotracheal tube during laparoscopic surgery,explore whether pneumoperitoneum and body position are associate with the displacement. Methods A total of 120 female patients were included in this study,60 cases underwent gynecological lapa-roseopic operation as group A,and 60 cases had laparoscopic cholecystectomy as group B.Intrabdominal pressure was maintained in 13 mm Hg during the operation.The length of trachea(Lac),the length from carina to the tip of an endotracheal tube(Lab),the length from glottis to the tip of an endotracheal tube (Lbc)and the cuff pressure (Pc)were measured after endotracheal intubation (T1 ),insufflation in the su-pine position (T2 ),insufflation in the Trendelenburg or reverse Trendelenburg position (T3 ),30 minutes after insufflation in the Trendelenburg or reverse Trendelenburg position (T4 ),deflation in the Trendelen-burg or reverse Trendelenburg position (T5 ),deflation in the supine position (T6 ).Results In both groups,Lac and Lab at T2-T4 were significantly shorter than those at T1 (P<0.05),but they were back to the original level at T5 ,T6 .Pc were higher at T2-T4 (P<0.05).Lac,Lab and Lbc didn’t show significant difference between the two groups at T1-T6 .At T2 and T3 ,in group B endotracheal tube distorting occurred in 2 patients and tube into right bronchus occurred in 3 patients,while tube into right bronchus occurred in 3 patients in group A.Conclusion Pneumoperitoneum can cause endotracheal tube displacement to-ward to carina.Body position unlikely to change endotracheal tube position.The displacement was blocking by cuff could cause distorting of the tube.

It is hypothesized that H 2S is the third endogenous signaling gasotransmitter, after NO and CO. Endogenous H 2S may regulate some aspects of synaptic activity via cAMP mediated pathways and function as a neuromodulator or transmitter. H 2S is an endogenous vasorelaxant factor that activates K ATP channels and hyperpolarizes membrane potential of vascular SMCs. By directly acting on vascular SMCs, H 2S may reduce the extracellular calcium entry and relax vascular tissues.

Objective To explore the effects of interactive health education on the knowledge and behaviors of medicine use and the biochemistry indicators in hemodialysis patients. Methods Forty-eight eligible hemodialysis patients were intervened with interactive health education once every month. After three times'intervention, phosphorus, hemoglobin and hematocrit level were compared before and after the intervention. Results After the intervention, phosphorus, levels of hemoglobin and hematocrit were all significantly improved ( P<0 . 001 ) compared with that before the intervention . Conclusion The interactive health education can improve the knowledge and compliance behaviors in medicine use, serum phosphate and symptoms of anemia in hemodialysis patients.

Aim To study the adaptive protection of H_2O_2 preconditioning against dopamine-induced damage in PC12 cells.Methods The apoptosis of PC12 cells was observed by electron microscope, PI stain flow cytometry (FCM) and Hoechst stain. The mitochondrial energy redox state was measured by MTT assay. The mitochondrial membrane potential(△?m) was investigated by the fluorescent probe of rhodamine 123.Results PC12 cells exposed to 50 ?mol?L -1 DA showed chromatin condensation and nucleus fragmentation observed by electron microscope. Exposure to DA (50 ?mol?L -1) for 24 h, the apoptosis of PC12 cells preconditioned by 10 ?mol?L -1 H_2O_2 for 90 min as measured by Hoechst stain was significantly decreased,compared with no-preconditioned cells. Exposure to 50,100,and 200 ?mol?L -1 H_2O_2 for 24 h, the proportion of apoptosis of PC12 cells was decreased from (20.9?1.8)%, (40.5?6.4)% and (88.1?3.9)% to (4.9?2.9)%, (12.0?1.4)%, (61.5?3.4)% after H_2O_2 preconditioning, respectively. By exposuring PC12 cells to 20,40,and 80 ?mol?L -1 DA for 24 h, the rates of MTT metabolism were reduced and the effect was prevented by H_2O_2 preconditioning. After 50 ?mol?L -1 DA exposure for 24 h,the mean fluorescence intensity of rhodamine 123 in no-preconditioned PC12 cells was decreased from (46.87?0.33) to (4.39?2.93),and that of preconditioned PC12 cells was decreased from (46.87?0.33) to (10.50?0.28). Conclusion H_2O_2 preconditioning possesses adaptive protection against dopamine-induced damage in PC12 cells.

AIM To investigate the poteintation of adriamycin induced apoptosis by neferine in resistant human breast cancer cell line MCF 7/Adr. METHODS Apoptosis was detected by PI stain flow cytometry and Tunel assay. The intracellular adriamycin (ADR) accumulation was assayed by HPLC and the expression of P gp was determined by flow cytometry. RESULTS (1)MCF 7/Adr cells resisted the apoptosis induced by ADR while Nef augmented ADR medidated apoptosis; (2) Nef (10 ?mol?L -1 ) increased the accumulation of ADR up to 2 88 fold in MCF 7/Adr cells but not in sensitive cells MCF 7/S; (3) Nef(10 ?mol?L -1 ) reduced the expression of P gp in MCF 7/Adr cells. CONCLUSIONS Nef can overcome apoptosis resistance in MCF 7/Adr cells and its mechanisms are involved in the augment of ADR accumulation and the down-modulation of P gp expression in MCF 7/Adr cells.

To evaluate the application of nueroelectrophysiological tests in early diagnosis of sub-clinical neuropathy in diabetes mellitus (DM), The routine nerve conductive velocity (NCV), F-wave and sympathetic skin response (SSR) were detected in 27 patients with diabetes mellitus but without symptoms and signs of lesions of nerve system. Our results showed that 48.1%, 44.4%, 51.9% of the patients were found to have abnormal NCV, F-wave and SSR respectively. The abnormalities were mainly characterized by prolonged latency, reduced velocity and absence of wave-form. There were significant differences between the controls and the DM group (P < 0.05). Both the distal and proximal segments of nerves were affected and the distal lesions took place earlier than proximal ones and the changes in low extremities were more severe than those of upper extremities. F-wave can be used as a sensitive indicator for the early diagnosis of peripheral neuropathy and it can help to detect the subclincial lesions. SSR can be used for the evaluation of functional status of autonomic nerves in DM patients.

Objective To investigate the effects of individual and collective health education on hemodialysis patients with hyperkalemia. Methods Thirty hyperkalemia patients treated with maintenance hemodialysis from Mar. 2013 to Mar. 2014 were set as the control group, in which the patients were given pre-established individual health education by the hemodialysis nurse weekly. Another 30 patients of the same sort, as the experiment group, were treated with individual health education combined with collective health education weekly from Apr. 2014 to Apr. 2015. The two groups were compared in term of serum potassium before and after intervention. Result Serum potassium of the experiment group after the intervention were significantly lower than the control group and the experiment group after the intervention (P<0.001). Conclusion Individual health education combined with collective health education can change traditional indoctrination one-way communication to the two-way communication conversion , make the patients consciously change their incorrect dietary behaviors, and reduce the serum potassium levels in the hemodialysis patients with hyperkalemia.

OBJECTIVE To study the causes and mechanism of auditory neuropathy. METHODS Auditory neuropathy is characterized by the DPOAE being normal, the shape of the pure tone loss being mostly in low frequencies, but the ABR being absent or the threshold elevated disproportionally to the pure tone threshold. Patients were screened from the deaf patients through asking the ill history and taking the exams of pure tone audiometry, auditory brain stem response, distortion product of otoaccoustic emissions (DPOAE). Thirty six patients were met the above standard. Deparaffined sections of cochlea of the guinea pigs were used as antigens to test whether the sera of patients had the autoantibodies with immunofluorescence method. RESULTS In the total of 36 patients with this type of hearing loss, autoantibodies were positive in 31 patients(86.1%). Twenty of the 31 patients had autoantibodiesto connective tissue of osseous spiral lamina where the nerve fiber connecting the hair cells and spiral ganglion cells go through. The autoantibodies to capsula surrounding the spiral ganglion and inner ear nerve fiber was also seen in these patients. In additional 7 patients, the autoantibodies to spiral ganglion cell nucleus and inner ear nerve fiber was detected. In the 44 control persons, 9.1% of them have the autoantibodies to inner ear tissues(P

Objective To identity the risk factors for supine hypotension syndrome (SHS) after spinal anesthesia in parturients.Methods A total of 204 parturients,scheduled for elective cesarean section,were divided into either control group or SHS group depending on whether or not SHS (systolic blood pressure [SBP] in the upper extremity decreased by ＞ 30 mmHg or decreased to ＜ 80 mmHg) developed after spinal anesthesia.The baseline patient characteristics such as age,body height and weight,gestational weeks and biparietal diameter were recorded.Supine stress test (SST) was performed.Heart rate,blood pressure in upper and lower extremities,perfusion index,pleth variability index and intravesical pressure were recorded when patients were in supine position and in left lateral position before spinal anesthesia.The risk factors of which P values were less than 0.05 would enter the multi-factor logistic regression analysis to stratify the risk factors for SHS.Results Among the 204 patients,99 cases developed SHS after spinal anesthesia,and the incidence was 48.5％.Logistic regression analysis showed that maternal body weight,biparietal diameter,the difference in SBP between upper and lower extremities in supine position,the difference in SBP in upper extremities caused by changing position and positive SST were risk factors for SHS after spinal anesthesia (P＜0.05 or 0.01).Conclusion Maternal body weight,biparietal diameter,the difference in SBP between the upper and lower extremities in supine position,the difference in SBP in upper extremities caused by changing position and positive SST are risk factors for SHS after spinal anesthesia in parturients.