OBJECTIVE:To study the effect and mechanism of tandospirone citrate (TC) on blood pressure in spontaneously hypertensive rats (SHR). METHODS:SHR were divided into model group,positive control group (Levamlodipine besylate tab-lets,2.5 mg/kg),TC high-dose,medium-dose,low-dose groups(TC capsules,40,20,10 mg/kg),8 in each group. Other 8 nor-mal rats were chosen as normal control group. The rats were intragastrically administrated medicines,once a day,for 28 d. Systolic blood pressure(SBP)before first administration and after 0.5,1,1.5,2,3,4 h of administration in each group were measured, and SBP after 1 h of administration were measured once every 7 d. After last administration,nitric oxide(NO)content in serum, endothelin,renin,angiotensin Ⅱ(Ang Ⅱ) and norepinephrine (NE) contents in plasma were detected. RESULTS:In single ad-ministration,compared with model group,SBP in 0.5,1 h in positive control group and TC groups after first administration were obviously decreased (P<0.05 or P<0.01),then SBP were obviously decreased only in positive control group and TC high-dose group (P<0.05 or P<0.01). In multiple administration,compared with model group,SBP in 7th,14th,28th day of administra-tion in positive control group and TC high-dose,medium-dose groups were obviously decreased(P<0.05 or P<0.01). Compared with model group,NO content in serum in positive control group,TC high-dose group were obviously increased;endothelin,re-nin,Ang Ⅱ and NE contents in plasma were obviously decreased (P<0.05 or P<0.01). Compared with positive control group, NO content in serum in TC groups was obviously decreased;endothelin,renin,Ang Ⅱ and NE contents in plasma were obviously increased in TC medium-dose group (P<0.05). CONCLUSIONS:TC can obviously decrease the blood pressure of SHR. The mechanism may be associated with adjusting the balance of NO and endothelin,and decreasing renin,AngⅡand NE contents.

Objective To investigate oxygen nebulizer usage among inpatients in an upper first‐class hospital so that this de‐vice can be used by medical personnel and patients properly .Methods Totally 409 patients were investigated about the usage of the device from May 12th to 30th 2014 ,whose outcomes were analyzed by Excel2007 software .Results The total liquid volume of in‐halation on prescription was much larger than the favorable one ,ranging from 4 to 6 mL .And the Oxygen flow ,ranging from 2 .5 to 3 .5 L/min ,was much lower than the normal flow (ranging from 6 to 8 L/min) .In addition ,all patients failed to breathe normally with occasional deep breaths and failed to gargle timely after corticosteroid inhalation .Only 3% patients cleaned their faces after corticosteroid inhalation ,43 .5% patients sit in an upright position ,44 .0% patients kept the nebulizer vertical during treatment .The accuracy rates of mouthpiece position ,the right time to stop nebulizer therapy ,rinsing the nebulizer with sterile or distilled water and allowing to air dry were 95 .1% ,99 .2% ,and 99 .3% ,respectively .Conclusion There are many common patient use nebulizer incorrectlly in the upper first‐class hospital ,and education and guidance by medical personnel should be strengthened .

A bacterium that contains a chitin deacetylase has been isolated from ocean soil. It has been identified Baciluus .The best suitable condition of producing this enzyme is that pH is 4.0,35℃,and the incubate time is 80 hours in the present of Ca 2+ as well as having no chitosan. The best temperature of this enzyme when it acts is 40℃～50℃ and the best pH range is 4.5～5.0.

Objective Henoch-Sch?nlein purpura(HSP)is a common multisystemic vasculitis in children ,but the exact pathogenesis remains unknown. Pentraxin 3(PTX3),a new kind of inflammatory cytokines,has a strong inflammatory effect,and is involved in occurrence and develop-ment of a variety of autoimmune diseases. The objective of this study is to evaluate the expression of PTX3,interleukin-8(IL-8),tumor necrosis fac-tor-α(TNF-α)and high sensitivity C-reactive protein(hs-CRP)in children with HSP,and explore the clinical significance of PTX3 in HSP devel-opment. Methods Thirty-six children(HSP group)and 17 healthy children(control group)were enrolled in the study. Serum levels of PTX3,IL-8 and TNF-α were detected by enzyme-linked immunosorbent assay. Serum hs-CRP levels were measured by automatic biochemical analyzer. Re-sults The serum levels of PTX3,IL-8,TNF-α,and hs-CRP were up-regulated in HSP group compared with the control group(P<0.05). The levels of PTX3,IL-8,TNF-α,and hs-CRP in patients with joint symptoms,or/and gastrointestinal symptoms,or/and kidney injury were significant-ly higher than those patients without joint symptoms,or/and gastrointestinal symptoms,or/and kidney injury(P<0.05). The expression of PTX3 was positively correlated with the expression of IL-8 and TNF-α(r=0.514,0.833,all P<0.05),but there was no correlation between PTX3 and hs-CRP(r=0.292,P>0.05). The expression of PTX3,IL-8,TNF-α and hs-CRP in HSP patients had no gender difference(all P>0.05). Con-clusion The high expression of PTX3 is related to the degree of inflammation in children with HSP. The up-regulated expression of PTX3 may play an important role in pathogenesis of HSP in children.

This article introduces a method of thoracic impedance, evaluation indexes and evaluation method for the respiration monitoring, including the methods basing on lab testing and clinical database testing, it will provide a reference for improving the efficiency of respiration monitoring.
Databases, Factual ; Humans ; Monitoring, Physiologic ; instrumentation ; methods ; Respiration ; Respiratory Function Tests ; Respiratory Physiological Phenomena

Objective In comparison of the performances for the detection of Clostridium difficile toxin B genes from stool between BD MAX Cdiff assay and a laboratory-developed (LD) assay.The LD assay was evaluated in clinical application.Methods This study was a clinical application research.A total of 147 stool specimens from patients with diarrhea in Hangzhou First Hospital affiliated with Zhejiang Chinese Medical University were detected by the two assays from 1 July to 30 September 2014.DNA extraction and amplification of the tcdB gene were performed automatically on the BD MAX platform.Meanwhile, the tcdA and tcdB gene were detected by the LD real-time PCR assay after DNA extraction.Then, the results were analyzed by use of SPSS 10.0.Results A total of 147 stool samples were collected.There were 33 C.difficile positive cases and 114 negative cases detected by both of two assays.However, there were four stool samples had incongruent results.In comparison with BD MAX, the LD assay had a sensitivity of 93.94% (31/33), a specificity of 98.25% (112/114), a positive predictive value of 93.94% (31/33), and negative predictive value 98.25% (112/114).Furthermore, the results of the LD assay were statistically coherent with that of the BD assay (Kappa=0.922, P<0.01).Conclusions The LD assay was highly sensitive and accurate as BD MAX Cdiff assay in the detection of toxigenic Clostridium difficile.Furthermore, this LD assay could be also applied to detection of clinical stool samples directly with low cost.The assay will be more promising in diagnosis of toxigenic C.difficile in clinical application in China due to no additional instrument needed.

Chemical and Drug Induced Liver Injury ; Dimethylformamide ; Humans ; Occupational Exposure

Systems and procedures are key to a hospital. How to upgrade hospital quality and medical level with systems and procedures, achieving a consistency among " drafting-practice-presentation" , deserves further attention by hospital administrators. The rounding process used at the hospital is designed to reform and optimize the institutional development. Following the PDCA cycle, the hospital established rounding teams to check the quality compliance, and correct defects found to improve hospital management. Such efforts adapt to conditions of the hospital and help build a closed-loop management model for hospital′s institutional development. Initial success has been observed, as staff compliance of regulations is upgraded, better ensuring medical quality and safety of the hospital.

Objective: To explore the impact of weight management and related medication intervention based on body weight changes on cardiac function among patients with chronic congestive heart failure (CHF). Methods: Using prospective, randomized, controlled study methods, consecutive CHF patients, who hospitalized in our department from June 2014 to June 2016 (n=350), were randomly divided into intervention group (n=175) and control group (n=175). Patients in the intervention group received weight management guidance and the post discharge diuretic drugs regimen was adjusted based on body weight changes. The control group received routine medical care post discharge. Left ventricular ejection fraction (LVEF), B type natriuretic peptide precursor (NT-proBNP), 6 minutes walk distance and NYHA classification at one day before discharge and after 6 months were compared between the two groups respectively. Results: Follow-up visit data were not available from 6 patients in the control and intervention group respectively. NYHA classification, LVEF, NT-proBNP and 6 minutes walk distance were similar between the two groups at one day before discharge (all P>0.05). After 6 months, the LVEF and 6 minutes walk distance were significantly higher while NT-proBNP level was significantly lower in the intervention group compared to the control group (all P<0.01). Meanwhile, the LVEF and 6 minutes walk distance were significantly increased, while NT-proBNP was significantly reduced at 6 months post discharge compared to one day before discharge in the intervention group (all P<0.01). The LVEF was also significantly improved (P=0.035), but the NT-proBNP and 6 minutes walk distance were similar (P were 0.328 and 0.807 respectively) at 6 months after discharge compared to one day before discharge in the control group. The NYHA classification was significantly lower in intervention group and in control group at 6 months after discharge compared to one day before discharge (Z=5.154, P<0.01 and Z=10.497, P<0.01), and the NYHA classification improved more in the intervention group than in control group at 6 months after discharge (Z=9.235, P<0.01). The re-hospitalization rate of CHF patients in intervention group was 11.83% (20/169), which was significantly lower than the control group (33.14% (56/169), χ²=21.99, P<0.01). At 6 months follow up, body weight remained unchanged in the intervention group, while body weight tended to be higher in the control group compared to one day before discharge. Conclusion The weight management and diuretic drug regimen adjudgment intervention based on body weight changes can improve cardiac function and reduced re-hospitalization rate in CHF patients.

AIMTo study the anti-tumor bioactive steroid saponins of Paris vietnamensis (Takht.).

METHODSThe constituents were isolated and purified by chromatography and their structures were identified by spectral analysis and physicochemical properties. The cytotoxic bioactivities of the constituents were determined by MTT.

RESULTSEleven compounds were obtained and identified as 3beta, 5alpha,6alpha-trihydroxy-7(8)-en-isospirostanol-3-O-beta-D-glucopyranosyl(1-->3) [alpha-L-rhamnopyranosyl(1-->2)]-beta-D-glucopyranoside (1), which was named as parisvietnaside A, 25 (R) diosgenin-3-O-alpha-L-arabinofuranosyl(1-->4)-beta-D-glucopyranoside (2), 25(R) diosgenin-3-O-alpha-L-rhamnopyranosyl(1-->2)-beta-D-glucopyranoside (3), 25 (R) diosgenin-3-O-alpha-L-arabinofuranosyl (1-->4) [alpha-L-rhamnopyranosyl (1-->2)]-beta-D-glucopyranoside (4), 25 (R) diosgenin-3-O-beta-D-glucopyranosyl (1-->3) [alpha-L-rhamnopyranosyl (1-->2)]-beta-D-glucopyranoside (5), 25 (R) diosgenin-3-O-alpha-L-rhamnopyranosyl (1-->4)-alpha-L-rhamnopyranosyl(1-->4) [alpha-L-rhamnopyranosyl-(1-->2)]-beta-D-glucopyranoside (6), 25 (R) pennogenin-3-O-alpha-L-arabinofuranosyl(1-->4)-beta-D-glucopyranoside (7), 25 (R) pennogenin-3-O-alpha-L-rhamnopyranosyl (1-->2)-beta-D-glucopyranoside (8), 25 (R) pennogenin-3-O-alpha-L-arabinofuranosyl (1-->4) [alpha-L-rhamnopyranosyl-(1-->2)]-beta-D-glucopyranoside (9), 25 (R) pennogenin-3-O-beta-D-glycopyranosyl (1-->3) [alpha-L-rhamnopyranosyl(1-->2)-beta-D-glucopyranoside (10) and 25 (R) pennogenin-3-O-alpha-L-rhamnopyranosyl (1-->4)-alpha-L-rhamnopyranosyl(1-->4) [alpha-L-rhamnopyranosyl-(1-->2)]-beta-D-glucopyranoside (11). Some constituents had cytotoxic bioactivities.

CONCLUSIONCompound 1 is a new spirostanol saponin, and compounds 2, 3, 6-11 were obtained from Paris vietnamensis (Takht.) for the first time. Compounds 3, 4, 6, 8 had cytotoxic bioactivities against tumor cells HepG2 and SGC-7901.

Adenocarcinoma ; pathology ; Carcinoma, Hepatocellular ; pathology ; Cell Line, Tumor ; Cell Proliferation ; drug effects ; Humans ; Liliaceae ; chemistry ; Liver Neoplasms ; pathology ; Molecular Conformation ; Molecular Structure ; Plants, Medicinal ; chemistry ; Rhizome ; chemistry ; Saponins ; chemistry ; isolation & purification ; pharmacology ; Stomach Neoplasms ; pathology