2.HPLC Content Determination of Luteolin in Callicarpa nudiflora Hook.et Arn.
Rong HU ; Min YAO ; Yuyun LI ; Caiqing ZHU
Traditional Chinese Drug Research & Clinical Pharmacology 1993;0(03):-
Objective To determine the content of luteolin in Callicarpa nudiflora Hook.et Arn..Methods HPLC was performed with chromatographic conditions as follows:Alltima C18 column(250 mm? 4.6 mm,5 ? m)with column temperature at 25 ℃,the mobile phase of methanol-water-phosphate(55:45:0.4),flow rate at 1 mL/min,and the detection wavelength at 348 nm.Results The linearity of luteolin was good in the range of 0.032 46~ 0.129 84 ? g(r=0.999 5).The average recovery was 99.52 % and RSD was 1.58 %.Conclusion The method is simple,feasible and reproducible,and can be used to control the quality of Callicarpa nudiflora Hook.et Arn..
3.In vitro Drug Resistance of 318 Gram-positive Strains in Nosocomial Infection
Min WU ; Jianping DENG ; Chunhong YAO ; Haibo ZHU
Chinese Journal of Nosocomiology 2006;0(03):-
OBJECTIVE To investigate the drug resistance of Gram-positive organisms infection in our hospital and offer scientific basis for reasonable usage of antibiotics.METHODS The 318 strain organisms were isolated from the specimens of Aikang Hospital since Jan 2001 to Dec 2005.Gram-positive organisms were isolated from the specimens by the routine methods.The drug susceptivity was tested by K-B method.We got the results by 1999 standard of NCCLS.RESULTS Among the 318 strains,Staphylococcus aureus were 128 strains,40.3% of the total organisms;coagulase-negative S.aureus were 69 strains,21.7% of the total organisms;Enterococcus faecalis were 67 strains,21.1% of the total organisms;meticillin-resistant S.aureus(MRSA) were 32.8%;Meticillin-resistant coagulase-negative S.aureus(MRCNS) were 29.0%.The results of drug sensitivity test showed the drug resistant rate of Gram-positive strains for commonly used antibacterials was lower than in Shenzhen,Beijing,Shanghai,Wuhan,Guangzhou and other cities.CONCLUSIONS We should attach in our city importance to supervise the drug-resistance of Gram-positive organism,and preclude dissemination and epidemic of drug resistant strains.
4.Extended-spectrum ?-Lactamases-producing Klebsiella pneumoniae and Escherichia coli:Distribution and Drug-resistance Analysis
Min WU ; Jianping DENG ; Chunhong YAO ; Haibo ZHU
Chinese Journal of Nosocomiology 1994;0(04):-
OBJECTIVE To study the distribution and characteristic about drug resistance of extended-spectrum ?-lactamases(ESBLs) producing Klebsiella pneumoniae and Escherichia coli for guiding the clinical drug using. METHODS Using K-B agar diffusion method and confirmed test to detect the drug resistance and distributions of ESBLs-producing K.pneumoniae and E.coli. RESULTS Among 582 K.pneumoniae and E.coli isolates,128(22%) were ESBLs-producing strains.For E.coli,the ratio was 17.5%,while K.pneumoniae was 28.3%.The sensitive rate of K.pneumoniae to imipenem was 100%. CONCLUSIONS ESBLs-producing K.pneumoniae and E.coli are the most common species causing infections,and imipenem is the best choice.
5.Correlation between myeloid-derived suppressor cells and gastric cancer begin with chronic gastritis
Lining ZHU ; Min XU ; Youli ZHANG ; Zhaoshen LI ; Mei KONG ; Yan SHEN ; Zhixin YAO
Chinese Journal of Digestion 2012;32(9):611-614
Objective To investigate the correlation between the ratio change of circulating myeloid-derived suppressor cells (MDSCs) and cellular immune function in healthy volunteers,chronic gastritis patients,gastric intraepithelial neoplasia patients and gastric cancer patients.Methods From February 2011 to July 2011,129 peripheral blood samples were collected,including 32 healthy volunteers,48 chronic gastritis patients,27 gastric intraepithelial neoplasia patients and 22 gastric cancer patients.The percentages of peripheral blood MDSC,T lymphocyte subsets and regulatory T cells (Treg) were determined by flow cytometry.The data were analyzed by one way analysis of variance,pearson and spearman correlation.Results The percentages of circulating MDSC,CD8+ T lymphocyte and Treg were highest in gastric cancer patients (9.63%±3.24%,10.03% ± 1.26%,69.45%±3.42%) and lowest in healthy volunteers (0.92%±0.33%,4.12% ±0.99%,32.35% ±4.83%).Those of gastric intraepithelial neoplasia patients (5.13% ± 1.30%,7.54% ± 0.79%,53.26%±4.30%) were lower than gastric cancer patients but higher than chronic gastritis patients (2.76% ±0.64%,6.28% ±0.61%,42.37% ±4.02%).The differences among each groups were statistically significant (F=24.85,20.88,37.84,all P<0.05).However,the percentage of circulating CD4+T lymphocyte was highest in healthy volunteers (65.10%±4.10%),55.15% ± 4.00% in chronic gastritis group,42.23% ± 3.91% in gastric intraepithelial neoplasia group,and lowest in gastric cancer group (26.84% ± 3.69%).The differences among each groups were statistically significant (F=46.80,P<0.05).A significant correlation between circulating MDSC and TNM stages of gastric cancer was also observed (r=0.856,P<0.01).The percentage of circulating MDSC was positively correlated with Treg percentage (r =0.862,P < 0.01),and negatively correlated with CD4+/CD8+ ratio (r=-0.768,P<0.01).Conclusion The increase of MDSC percentage in peripheral blood is correlated with human cellular immune function,which might play an important role in the tumor immune evasion during the development of gastric cancer.
6.Study in correlation of anxiety and depression condition with social support of patients with pulmonary hypertension
Fen GU ; Min HU ; Juan YAO ; Yan ZHU ; Yijun LU ; Xin JIANG ; Zhicheng JING
Chinese Journal of Practical Nursing 2011;27(14):20-23
Objective To investigate the effects of social support intervention on anxiety and depression of pulmonary hypertension(PH)patients,then provide a scientific basis for nursing of patients with pulmonary hypertension.Methods The general condition of PH questionnaire,self-rating anxiety scale (SAS),self-rating depression scale(SDS),social support rating scale(SSRS)were distributed to 131 patients with PH.Then make statistical analysis of patients'anxiety,depression and social support conditions.Results The score of anxiety and depression psychological conditions of patients with pulmonary hypertension was significantly higher than normal population,the difference wag statistically significant.Among 131 patients,16 patients with anxiety,accounting for 12.21% ;21 cases of patients with depression,accounting for 16.03% .28 patients at a high level of social support,92 patients at a medium level of social support,11 patients at a low level of social support,a total of 91.60% of the patients in the middle and higher levels of social support.Anxiety and depression scores had significant negative correlation with social support,objective support points and subjective support points.The anxiety,depression difference among different types of pulmonary hypertension was statistically significant.The difference of anxiety and depression scores between patients with idiopathic pulmonary arterial hypertension and patients with pulmonary hyper tension caused by congenital heart disease were significant.The depression scores between pulmonary hy pertension caused by pulmonary veno-occlusive disease and congenital heart disease were significantly different.Conclusions When nurses care pulmonary hypertension patients.those with different types of PH should be given targeted social support.Attention should be paid to transfer the source of social support to help them adopt a positive attitude to face the diseabe,then improve the treatment and care compliance of patients.
7.Research on clinical application of manual therapy to tumor-related adverse reactions
Chongjie YAO ; Zhizhen LÜ ; Shuaipan ZHANG ; Lingjun KONG ; Qingguang ZHU ; Yanbin CHENG ; Min FANG ; Kaiwei ZHANG
Journal of Acupuncture and Tuina Science 2022;20(4):321-328
Objective: To analyze the clinical application of manual therapy (MT) to tumor-related adverse reactions via summarizing the research at home and abroad, in order to provide more theoretical evidence for the clinical promotion of MT. Methods: We searched 7 Chinese and English databases, including China National Knowledge Infrastructure (CNKI), Wanfang Academic Journal Full-text Database (Wanfang), Chongqing VIP Database (CQVIP), PubMed, Excerpta Medica Database (EMBASE), Ovid and EBSCO. The publication date was between the establishment date of the database and December 31, 2020. We screened the literature according to the inclusion and exclusion criteria, and then sorted and analyzed the selected information. Results: A total of 46 papers were analyzed. Most studies focused on the adverse reactions in breast cancer patients. MT interventions demonstrated the best efficacy for fatigue, followed by pain, depression and anxiety. In different MT interventions, Tuina (Chinese therapeutic massage) was mainly adopted for fatigue, pain, anxiety, depression, and limb dysfunctions. Acupoint pressing was mainly adopted for gastrointestinal and psychological problems such as abdominal bloating, insomnia, depression and anxiety. The application of reflexotherapy was similar to that of Tuina. Conclusion: MT can alleviate various adverse reactions by effectively relieving patients' somatic symptoms and improving their psychological states and overall functions. It can be popularized as a significant non-drug therapy. Currently, however, the clinical application of MT is neither extensive nor has sufficient basic research. Consequently, we should attach importance to this application.
8.Glucuronidation and in vitro interaction of Ginkgo flavonoids with other drugs.
Min ZHU ; Tong-wei YAO ; Su ZENG
Journal of Zhejiang University. Medical sciences 2004;33(1):15-20
OBJECTIVETo obtain the information on the glucuronidation of Ginkgo flavonoid and the interaction profile of Ginkgo flavones with other drugs in vitro.
METHODSGinkgo flavonoids (quercetin, isorhamnetin and keampferol) and other drugs were co-incubated with rat hepatic microsome at 25 degree; the residual concentrations of flavonoids were determined by HPLC. The enzymatic parameters of quercetin, isorhamnetin and keampferol metabolism were assessed. The interactions between flavonoids and these drugs on glucuronidation were observed.
RESULTThe K(m) values were ( 24+/-0.05), (148+/-0.09) and (110+/-0.03) micromol/L and the V(max) values were (60+/-0.21), (48+/-0.02) and (34+/-0.02) micromol x g(-1) x min(-1) for quercetin, isorhamnetin and kaempferol, respectively. The IC(50) of nifedipine propafenone ipriflavone and diphenytriazol on flavonoids metabolism were 54 - 70, 69 - 122, 85 - 98 and 210 - 362 micromol, respectively. The inhibition constants (Ki) of diphenytriazol propafenone and ipriflavone on quercetin, isorhamnetin and keampferol metabolism were (57.6, 50.5, 33.1) (33.6, 59.5, 45.2) and(13.7,24.0,15.7) microg/ml respectively. The ratio [I]/[Ki] of the plasma concentration and inhibition constant for propafenone was 0.002 - 0.003.
CONCLUSIONThe metabolic level of quercetin is the strongest among three Ginkgo flavonoids. Nifedipine propafenone and ipriflavone inhibit the metabolism of quercetin, isorhamnetin and keampferol at different levels. Because of the interaction between Ginkgo flavonoids with nifedipine, caution must be taken when two drugs are used together clinically.
Animals ; Drug Interactions ; Flavonoids ; metabolism ; Ginkgo biloba ; Glucuronides ; metabolism ; Microsomes, Liver ; metabolism ; Rats
9.Pharmacokinetics and Relative Bioavailability of Diclofenac Potassium Capsules
Yan WU ; Ping HUANG ; Min HAN ; Haixia HE ; Yuanda ZHOU ; Gaoqiong YAO ; Zhiben ZHU
China Pharmacy 2001;12(3):158-159
OBJECTIVE:To study the pharmacokinetics and relative bioavailability of diclofenac potassium capsules in normal volunteers.METHODS:A single oral 50mg dose of domestic diclofenac potassium capsules or imported diclofenac potassium tablets were given to 10 healthy male volunteers in an open randomized crossover study.Diclofenac potassium concentration in plasma were determined by HPLC.The pharmacokinetic parameters as well as relative bioavailability were measured.RESULTS:The concentration- time curves of domestic diclofenac potassium capsules and imported diclofenac potassium tablets were conformed to one compartment open model.The AUC(0~ 6)was (1 834.52± 711 06) μ g/( h· L) and (1 891.19± 859.08)μ g/( h· L) , Tmax(1.15± 0.77)h and (1.30± 0.97)h,Cmax(1 522.29± 1 063.87)ng/ml and (1 508.54± 892.44)ng/ml respectively.There were no significant differences between the two formulations in the AUC(0~ 6),Tmax,Cmax.CONCLUSION:The relative bioavailability of domestic diclofenac potassium capsule was(100.80± 16 59)% compared with the imported tablet.The result of the statistical analysis showed that the two formations were bioequivalent.
10.Clinical research of transvaginal repair of cesarean scar diverticulum
Min YAO ; Huihui CHEN ; Jie TAO ; Yu LI ; Minghua SUN ; Jialiang ZHU ; Ping CHEN ; Xipeng WANG
Chinese Journal of Obstetrics and Gynecology 2015;(7):500-504
Objective To explore the clinical effect of transvaginal repair of cesarean scar diverticulum (CSD). Methods Totally 64 patients of CSD in the First Maternity and Infant Hospital, Tongji University between Mar. 2013 and Sept. 2014 underwent transvaginal repair of CSD were reviewed retrospectively and followed. Result All the patients had a prolonged period, and the duration was (14.8± 3.5) days; all the patients were received the transvaginal repair of CSD, there was no intra-operative complications, the procedures were successfully performed in all patients. The mean operation time was (67± 12) minutes, the mean blood loss was (53±32) ml, and the mean length of hospital stay was (4.0±1.1) days. All patients were followed after the operation, the duration of menstruation was (8.1 ± 3.5) days shorter in average, which was statistically significant (P<0.01);the operation effective rate was 94%(60/64) to assess the clinic syptoms, the operation effective rate was 95%(61/64) for anatomic assessment. The distance of the CSD from the serosa became thicker after surgery significantly, the distance was thicker (3.4 ± 0.4) mm compared with preoperation (P<0.01). Conclusions Transvaginal repair of CSD offers minimal invasiveness, good exposure and accurate resection. It is worth to be popularized in the treatment of patients with CSD.