1.Preparation and in vitro Property of Voriconazole Sulfonated Butyl Ether-β-Cyclodextrin Inclusion Compound
China Pharmacist 2017;20(8):1489-1491
Objective: To prepare voriconazole (VCZ) sulfonated butyl ether-β-cyclodextrin (SBE-β-CD) inclusion compound and study the properties in vitro.Methods: VCZ SBE-β-CD inclusion compound was prepared respectively by a stirring method, an ultrasonic method and a grinding method, and the one with the highest inclusion rate and inclusion compound yield was chosen as the final preparation method.The formula and preparation process were optimized by an orthogonal design.The inclusion compound was identified by differential scanning calorimetry and solubility determination, and the in vitro dissolution was determined as well.Results: The stirring method had the highest inclusion rate and inclusion compound yield, and the optimal preparation and formula conditions were as follows: the inclusion temperature was 25℃, the stirring time was 4 h and the amount ratio of VCZ to SBE-β-CD was 1∶1.After the optimization, the inclusion rate was (86.14 ± 0.69)%, and the yield of inclusion compound was (97.11 ± 0.31)%.After the inclusion, the characteristic peak of VCZ disappeared and the solubility of VCZ increased significantly.Compared with those of VCZ, the dissolution rate and amount of VCZ inclusion compound both increased notably.Conclusion: VCZ SBE-β-CD inclusion compound can be prepared by the stirring method, which lays foundation for the further studies on VCZ eye drop.
2.Ruhof Cleansing Detergent Applied to Clean Endoscopies
Chinese Journal of Nosocomiology 2005;0(11):-
OBJECTIVE To analyze the cleaning efficiency of using Ruhof multi-enzyme detergent to clean endoscopies. METHODS Take 80 sets of used endoscopies as samples and clean them with multi-enzyme detergent in "four-trough" way as instructed by the Ministry of Health.After cleaning,the changes in bio-burden residual on the endoscope′s surface and jet obstruction were observed. RESULTS After cleaning the endoscopes with Ruhof multi-enzyme detergent,the bio-burden residual on the endoscope′s surface as well as jet obstruction,and the surface cleanness evaluation value had decreased enormously.The difference value before and after cleaning was significant(P
3.Mobile Health: IEEE Standard for Wearable Cuffless Blood Pressure Measuring Devices.
Xia ZHOU ; Wenli WU ; Shudi BAO
Chinese Journal of Medical Instrumentation 2015;39(4):285-287
IEEE Std 1708-2014 breaks through the traditional standards of cuff based blood pressure measuring devices and establishes a normative definition of wearable cuffless blood pressure measuring devices and the objective performance evaluation of this kind of devices. This study firstly introduces the background of the new standard. Then, the standard details will be described, and the impact of cuffless blood pressure measuring devices with the new standard on manufacturers and end users will be addressed.
Blood Pressure
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Blood Pressure Monitors
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standards
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Humans
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Reference Standards
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Telemedicine
4.A STUDY OF PSS THERAPY ON REFRACTORY NEPHROSIS IN CHILDREN
Wenli ZHOU ; Liyuan XU ; Xiuying WANG
Chinese Journal of Marine Drugs 1994;0(02):-
The changes of the hemorheology, plasma cholesterol and albumin and clinicaleffects in 36 children with refractory nephrosis after treatment with polysaccharide sulfate (PSS) were observed. The results showed that the indices of hemorheology and the plasma cholesterol decreased obviously and the albumin increased obviously than the control group ( P
5.Talking about international students'biochemistry laboratory teaching in medical school
Yuyu ZHOU ; Wenli MA ; Yifei PENG
Chinese Journal of Medical Education Research 2003;0(03):-
According to the teaching practice in biochemistry laboratory course,we describe the characteristics of international students'teaching,teaching preparation,teaching course and so on.These experiences may provide an important source of information for teaching practice in the future.
6.Standardized management of patients with coronary heart disease in Yuetan Community of Beijing
Wenli ZHOU ; Jianqin DONG ; Xiumei TONG
Chinese Journal of General Practitioners 2009;8(9):656-657
nses (P<0.01).Standardized management is favorable in community management of patients with coronary heart disease.
7.Determination of Isomeric Impurity in Fasudil Hydrochloride by HPLC
Wenli ZHOU ; Xiuhua REN ; Hongbin YANG
China Pharmacist 2016;19(4):819-821
Objective:To establish an HPLC method for the determination of isomeric impurity in fasudil hydrochloride. Meth-ods:The chromatographic method was carried out on a Kromasil 100-5 Phenyl C18 column with phenyl bonded silica as the filler (250 mm × 4. 6 mm, 5 μm), and phosphate buffer (10 mmol· L-1 ammonium dihydrogen phosphate, adjusting pH to 4. 0 with 1% phos-phoric acid) -acetonitrile (80∶ 20) was used as the mobile phase. The detection wavelength was 275nm and the column temperature was 40℃. The flow rate was 1. 0 ml· min-1 , and the injection volume was 10 μl. Results:Fasudil hydrochloride and its derivative was linear within the range of 0. 148-2. 960 μg·ml-1(r=1. 0000) and 0. 101-2. 014μg·ml-1(r=0. 999 9), respectively. The av-erage recovery of isomer impurity in fasudil hydrochloride was 101. 9% with RSD of 0. 98%(n=9). Conclusion:The method is sim-ple,accurate and reproducible,which can be used for the quality control of fasudil hydrochloride and its isomer.
8.Clinical significance of detection of plasma PCT,NT-pro-BNP and cTnT levels in patients with sepsis
Wenli JI ; Qingshan ZHOU ; Lang HU ; Shougui XIANG
Chinese Journal of Infection Control 2016;15(6):412-416
Objective To evaluate whether there is a correlation among plasma levels of procalcitonin (PCT),N-terminal pro-brain natriuretic peptide (NT-pro-BNP)and cardiac troponin T (cTnT)in patients with sepsis,as well as significance to prognosis of patients.Methods 48 patients with sepsis who were admitted to the intensive care unit of a hospital between September 2014 and March 2015 were chosen for study,patients were divided into severe and mild sepsis groups according to the disease condition,plasma levels of PCT,NT-pro-BNP,and cTnT were de-tected,mortality of patients were analyzed statistically,relation between plasma levels of PCT,NT-pro-BNP,cT-nT and patients’death were compared.Results The plasma levels of PCT,NT-pro-BNP and cTnT in severe sepsis group were significantly higher than those in mild sepsis group (all P <0.05);mortality of mild sepsis group was significantly lower than that of severe sepsis group (10.53% vs 41.38%,P <0.05);Levels of PCT,NT-pro-BNP and cTnT levels in died patients were all higher than surviving patients (all P <0.05);levels of PCT and NT-pro-BNP,NT-pro-BNP and cTnT were positively correlated respectively (rs = 0.337,P <0.05;rs =0.456,P =0.001, respectively ),while PCT was not significantly correlated with cTnT.Plasma levels of PCT,NT-pro-BNP,and cTnT were all correlated with the prognosis of patients (P <0.05),and is helpful for judging the prognosis of pa-tients,combination of three indexes had better prognostic value for the prognosis.Conclusion Combination detec-tion of plasmid levels of PCT,NP-pro-BNP,and cTnT can assess the severity of infection in patients with sepsis, and preliminarily judge the prognosis of patients with sepsis.
9.MK-2206, an inhibitor of Akt, induced cell apoptosis and autophagy in U2 OS cells
Xueying WANG ; Zhaomei LI ; Yunsheng ZHOU ; Wenli GUO ; Fengze WANG
Chinese Journal of Pathophysiology 2014;(9):1580-1583
AIM:To observe the effect of MK-2206, an inhibitor of Akt, on the cell apoptosis and autophagy of U2OS cells.METHODS:The cell viability was detected by MTT assay .The cell apoptosis was analyzed by TdT-media-ted dUTP nick end labeling assay .The expression of LC3-II was examined by Western blotting .RESULTS:MK-2206 in-hibited the cell viability in a dose-dependent manner .MK-2206 induced the cell apoptosis via activation of caspase-3, caspase-9 and PARP.MK-2206 treatment substantially induced the U 2OS cell autophagy by increasing in the levels of LC 3-II.Blockage of autophagy using chloroquine magnified MK-2206-induced cell death in U2OS cells.CONCLUSION:The Akt inhibitor MK-2206 induces cell apoptosis and autophagy .Blocking autophagy magnifies MK-2206-induced the inhibi-tion of the viability in U2OS cells.
10.Protective effects of astragaloside Ⅳ on hypertrophy induced by angiotensinⅡ in primary cultured cardiomyocytes of neonatal rats
Hongmin ZHOU ; Yuzhang JIN ; Wenli XIE ; Yanxia LIU
Chinese Pharmacological Bulletin 2003;0(10):-
Aim To investigate the protective effects and mechanism of astragaloside Ⅳ on hypertrophy induced by angiotensinⅡ(AngⅡ)in primary cultured cardiomyocytes of neonatal rats.Methods Cardiomyo-cytes were incubated with AngⅡ to establish the hypertrophy model of primary cultured cardiomyocytes in neonatal rats.AST 10 mg?L-1 or 20 mg?L-1 were added with AngⅡ simultaneously to observe its protective effects on cardiomyocytes.The diameter and the total protein content of cardiomyocyte were measured.The intracellular free calcium concentration([Ca2+]i),activity of sarcoplasmic reticulum Ca2+-ATPases(SERCA)and activity of calcineurin(CaN)were determined.Results Compared with control group,diameter and total protein content of cardiomyocyte induced by AngⅡ were increased significantly,which were inhibited by AST 10 mg?L-1 and 20 mg?L-1,respectively(P