2.Determination of Equilibrium Solubility and Apparent Oil/Water Partition Coefficient of Nebivolol Hydrochloride
Yun ZHOU ; Xudong FU ; Shitao BI
China Pharmacist 2017;20(4):754-756
Objective:To determine the equilibrium solubility and the apparent oil/water partition coefficient of nebivolol hydrochloride to provide experimental basis for the development of new preparations.Methods:The concentration of nebivolol hydrochloride was determined by an HPLC method,and a saturated solution method and a shake-flask method were respectively applied to determine the equilibrium solubility and the apparent oil/water partition coefficient of nebivolol hydrochloride in water,0.1 mol·L-1 HCl solution and phosphate buffer solution with different pH values(pH2.0,pH6.8,pH7.4 and pH8.0).Results:At (37±0.5)℃,the equilibrium solubility of nebivolol hydrochloride in water and in 0.1 mol·L-1 HCl solution was 722.53 μg·ml-1and 56.07μg·ml-1,respectively.The apparent oil/water partition coefficient (Log P) of nebivolol hydrochloride was 1.17 and 1.32,respectively.Within the pH range of 2.0-7.4,with the increase of pH value, the equilibrium solubility and the Log P decreased and increased,respectively,while pH value increased from 7.4 to 8.0,the equilibrium solubility of nebivolol hydrochloride increased and Log P decreased.Conclusion:The method is accurate and reliable.Nebivolol hydrochloride has poor water solubility,and the equilibrium solubility and the Log P are both influenced by pH values.
3.Quantitative Detection of Transforming Growth Factor-?_1 and Plasminogen Activator Inhibitor-1 in Rat with Tubulointerstitial Fibrosis
Journal of Applied Clinical Pediatrics 2004;0(08):-
Objective To observe the expressions of transforming growth factor-?1(TGF-?1) and plasminogen activator inhibitor-1(PAI-1) mRNA in tubulointerstitial fibrosis( TIF ) rats,and explore the effects of TGF-?1 and PAI-1 on TIF and the interaction between TGF-?1 and PAI-1.Methods Sixty male SD rats were randomly divided into sham operation group (SOR group,n=30) and unilateral urethral obstruction group(UUO group,n=30).TIF model was established via UUO.At d 7,d 14,d 21 after operation,10 rats of every group were killed to obtain renal samples.Histological changes were observed in tubulointerstitium injury under microscope;mRNA and proteins of TGF-?1 and PAI-1 were detected by real-time PCR assays and Western blotting respectively at d 7,d 14,d 21 after experiment onset.SPSS 10.0 software was used to analyze data.Results 1.HE,Masson staining of renal tissues of all groups indicated that there were no fibrosis in SOR rats,there were vacuole degeneration in tubular epithelial cells and inflammatory cell infiltration in tubulointerstitial in UUO rats at d 7,fibrosis aggravated gradually and became severe fibrosis at d 21.2.The expression locations of TGF-?1 and PAI-1 were renal sites of fibrosis by immunohistochemical staining.The mRNA and proteins of TGF-?1 in rats from SOR groups were lower than those of UUO groups at d 7,d 14,d 21(P
4.Correction of vermilion border malformation with a sliding subcutaneous pedicle flap.
Sheng BI ; Zhen-xiang WANG ; Dong-yun YANG
Chinese Journal of Stomatology 2012;47(2):127-128
Adolescent
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Adult
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Cleft Lip
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surgery
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Female
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Humans
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Lip
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injuries
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surgery
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Male
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Middle Aged
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Postoperative Complications
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Reconstructive Surgical Procedures
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methods
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Surgical Flaps
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Young Adult
6.Papillary lesions of the breast.
Chinese Journal of Pathology 2013;42(11):721-726
Biopsy, Needle
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Breast
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pathology
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Breast Neoplasms
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classification
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metabolism
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pathology
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Carcinoma, Ductal, Breast
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metabolism
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pathology
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Carcinoma, Intraductal, Noninfiltrating
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metabolism
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pathology
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Carcinoma, Papillary
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metabolism
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pathology
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Diagnosis, Differential
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Female
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Humans
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Hyperplasia
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Keratin-14
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metabolism
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Keratin-5
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metabolism
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Keratin-6
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metabolism
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Membrane Proteins
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metabolism
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Papilloma, Intraductal
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metabolism
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pathology
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Receptors, Estrogen
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metabolism
7.Effect of xingding injection on platelet coagulation and fibrinolysis activity in patients with advanced stage chronic pulmonary heart disease.
Bi-yun SUN ; Jing-lin YANG ; Xue-ying CHEN
Chinese Journal of Integrated Traditional and Western Medicine 2004;24(2):154-155
Aged
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Aged, 80 and over
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Drugs, Chinese Herbal
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therapeutic use
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Female
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Fibrin Fibrinogen Degradation Products
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metabolism
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Fibrinolysis
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drug effects
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Glycoproteins
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blood
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Humans
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Injections
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Male
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Middle Aged
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Phytotherapy
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Plasminogen Activator Inhibitor 1
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blood
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Platelet Aggregation
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drug effects
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Pulmonary Heart Disease
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blood
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drug therapy
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Tissue Plasminogen Activator
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blood
8.Research on the BCL I Polymorphism of Haemophilia A in Han Chinese Population in Wenzhou
Wan-Dong LIANG ; Jin-Song LI ; Yun-Tian BI
Chinese Journal of Prevention and Control of Chronic Diseases 2006;0(06):-
Objective In order to find the polymorphism site applicable to efficient genetic diagnosis on Haemophilia A in Han Chinese Population in Wenzhou.Methods With the method of polymerase chain reaction(PCR) and polyacrylamide gel electrophoresis(PAGE),288 of X chromosomes from 96 men and 96 women were detected on the polymorphism of BCL I in the intron 18 of FV Ⅲ gene.Results The gene frequency of the polymorphic site BCL I was 34.38% in Han Chinese population in Wenzhou.43.75% women were heterozygous and the polymorphism information content(PIC) was 0.4512.Conclusion For Han Chinese population in Wenzhou,the BCL I genetic site has enough information,being one of the genetic markers with high polymorphism,applicable to the screening for carrier and prenatal diagnosis of Haemophilia A in Wenzhou.
9.Analysis of acute phase side-effects of diphosphonate treatment in elderly patients with primary osteoporosis
Ping LI ; Bi XIAO ; Yun TANG ; Houxun MA
Journal of Chinese Physician 2016;18(3):362-365,369
Objective To investigate the acute phase adverse effects and influencing factors of adverse effects of diphosphonate treatment in the elderly patients with primary osteoporosis.Methods A total of 208 patients [male 25 patients,female 183 patients,age 60 ~ 93 with a average of (75.51 ± 7.73) years] with primary osteoporosis were selected from 1 Jan 2012 to 30 Nov 2015,admitted to Department of Geriatrics.According to the serious condition of osteoporosis and willingness of patients,208 patients were divided into zoledronic acid treatment group,alendronate treatment group,and pamidronic acid group,and received corresponding diphosphonate treatment.All kinds of adverse reactions of diphosphonate in each treatment group were closely to be observed after administration of diphosphonate in 3 days and 7 days.Results The incidence rate of adverse reactions in the zoledronic acid treatment group (59/134,44.03%;60/134,44.78%) was obviously higher than that in the alendronate treatment group (1/57,1.75%;1/57,1.75%),and the pamidronic acid group (3/17,17.65%;3/17,17.65%) after treatment of diphosphonate in three and seven days (P < 0.05).In different generations,the incidence rate of adverse reactions in the zoledronic acid group and the pamidronic acid group after treatment of diphosphonate in three and seven days was not statistically significant (P > 0.05).There were three patients suffering from severe acute kidney injure (AKI) and three patients suffering from hypokalemia in the 134 patients treatment with zoledronic acid.Conclusions There are obvious differences in the incidence rate of acute phase adverse reactions in the osteoporosis patients who received different treatment policy (P < 0.05).The safety issues in the kidney function and electrolyte abnormality (such as hypokalemia) should be paid much enough attention in the primary osteoporosis patients who receive zoledronic acid treatment.
10.Analysis on influential factors in China's exports of primary and semi-finished products of traditional Chinese medicine to ASEAN.
Yun-Xu QIAN ; Yue YANG ; Wei ZHAO ; Kai-Shun BI
China Journal of Chinese Materia Medica 2014;39(7):1321-1325
Two regression models, based on panel data over the period of 2000-2011, are built and used to analyze what factors determine China's exports of primary and semi-finished products of traditional Chinese medicine to ASEAN. The results indicate that, China GDP, the ratio of ASEAN to China GDP per capita, average export price, the ratio of state-owned assets to total assets, have a significant positive influence on the export volumes of primary products of Chinese medicine. At the same time, RMB appreciation, the ratio of three kinds of foreign-invested assets to total assets, China-ASEAN Early Harvest Program, ASEAN-China Free Trade Area have a significant negative influence. In respect of the export volumes of semi-finished products of Chinese medicine, the significant influential factors are ASEAN GDP and the ratio of ASEAN to China GDP per capita. The former is positive and the latter is negative. In order to optimize the commodity composition of experts, it is needed to increase export volumes of both primary and semi-finished products of Chinese medicine. According to the analysis above, some proposals are put forward, such as, improving the performance of foreign capital, playing an exemplary and leading role in technological innovation by state-owned enterprises, taking advantage of bargaining power of suppliers, increasing outward foreign direct investment.
China
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Commerce
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Drugs, Chinese Herbal
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chemistry
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economics
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Europe, Eastern
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Medicine, Chinese Traditional
;
economics
;
standards
;
Quality Control