1. Determination of imatinib in rat plasma by HPLC and study of its pharmacokinetics
Chinese Pharmaceutical Journal 2013;48(4):293-296
OBJECTIVE: To develop a high performance liquid chromatography method for the determination of imatinib in rat plasma and study its pharmacokinetics. METHODS: Plasma was deposited by perchloric acid. The analytical column was ZORBAX SB-C18 (4.6 mm × 150 mm, 5 μm). The mobile phase was acetonitrile-water-0.1% trifluoroacetic acid (19:61:20) and the flow rate was 1.0 mL · min-1. The LV detection wavelength was 282 nm. Six male SD rats were given a single dose of 50 mg · kg-1 imatinib by garage. Blood samples were collected from tail vein at different time points. The concentrations of imatinib in plasma were determined by the established HPLC method. The pharmacokinetic parameters were analyzed by DAS program. RESULTS: Excellent liner relationship was obtained in the range of 0.10-20.00 mg · L-1 (r=0.9998), and the lower limit of qauntification was 0.05 mg ·L-1. The recoveries were (98.86±2.77)%, (100.35±2.31)% and (100.14±1.66)% respectively at three concentrations (0.25, 5.00, 15.00 mg · L-1), the intra-day RSDs were 2.64%, 2.50% and 1.62% with REs of -1.60%, -1.00% and 0.10%, and the inter-day RSDs were 3.51%, 2.77% and 1.34% with REs of -0.80%, 0.72% and 0.21%, respectively. After oral administration in rats, the pharmacokinetic profile of imatinib was fitted with a two-compartment model, the half-lives of α phase and β phase were (2.40±0.84) h and (7.82±0.87) h, respectively. CONCLUSION: The method is accurate, simple, rapid and can be used to determine imatinib concentration in rat plasma and study its pharmacokinetics.
2.Trend analysis of Helicobacter pylori resistance to clarithromycin and levofloxacin in Wenling area from 2014 to 2018
Guo-ping WANG ; Qing-qing TANG ; Pei-li LIN ; Yu CHEN ; Yu-yin WANG ; Xia CHEN
Shanghai Journal of Preventive Medicine 2021;33(4):296-301
Objective:To understand the trend of
3. Effect of Shugan Jieyu capsule on depression in patients with schizophrenia
Chinese Journal of Primary Medicine and Pharmacy 2019;26(10):1190-1193
Objective:
To investigate the effect of Shugan Jiayu capsule on depression in patients with schizophrenia.
Methods:
From January 28, 2016 to January 24, 2017, 82 schizophrenic patients in Wenling Psychiatric Rehabilitation Hospital were selected in the study.All the patients had depressive symptoms and were divided into two groups by random number table method, with 41 cases in each group.Both two groups were treated with routine therapy.The control group was treated with quetiapine, and the observation group was given Shugan Jieyu capsule.The improvement of the disease and the occurrence of adverse events in the two groups were observed.
Results:
At two weeks and one month after treatment, the Hamilton Depression Scale(HAMD) scores of the observation group[(16.97±2.23)points and (12.53±1.88)points] were lower than those of the control group (
5.Detection of nucleic acid and antibody to chlamydia pneumoniae in coronary atherosclerotic heart disease
Wenling JIANG ; Yunyun SUN ; Xianling LUO ; Jiyan CHEN
Chinese Journal of Immunology 1985;0(05):-
Objective:To understand the state of Chlamydia pneumoniae (Cpn) infection in patients with coronary hear disease (CHD), and explore the relationship between Cpn infection and the gonesis and progressin of CHD.Methods:By means of PCR and ELISA, Cpn IgG antibody and nucleic acid were detected in 159 patients with CHD and 41 control subjects.Results:The positivity rate of Cpn DNA was 43 40%(69/159) in the patient group and 7 32%(3/41) in the control group, showing obvious difference between the two groups( P
6.Association of serum 25-hydroxyvitamin D with serum IgE levels in adults
Ying CHEN ; Wenling ZHANG ; Tao HUANG ; Yu SU ; Jiali WU
Clinical Medicine of China 2017;33(2):134-137
Objective To investigate the correlation between serum levels of 25 hydroxyvitamin D and immunoglobulin E(IgE)in adults.Methods There were 1 969 participants over the age of 19 were enrolled in this studied,serum total IgE,dermatophagoides farinae(Df)-specific IgE,and serum 25(OH)D levels were analyzed.Other variables included sex,age,body mass index,smoking history,and economic status were collected.Adjusted regression analysis was used to examine the independent association of 25(OH)D with serum IgE levels.Results The average serum 25(OH)D level of 1 969 patients was(18.0±6.5)μg/L,the prevalence of asthma,allergic rhinitis,and atopic dermatitis were 15.2%(299/1 969),2.8%(63/1 969)and 3.0%(68/1 969)respectively,however,there was no significant difference in serum 25(OH)D levels in patients with allergic rhinitis.All subjects were divided into four groups according to the serum 25(OH)D level: Q1:less than and equal to 13.4 μg/L,Q2:more then and equal to 13.4 μg/L but less then and equal to 17.0 μg/L,Q3: more then and equal to 17.0 μg/L but less then and equal to 21.7 μg/L,and Q4: more than and equal to 21.8 μg/L.The median TIgE level increased with higher quartiles in the Kruskal-Wallis test.The prevalence of Df in Q1,Q2,Q3,Q4 group were 39.8%,33.2%,38.7%and 43.1%,respectively.Linear regression analysis indicated that 25(OH)D levels were positively correlated with lgTIgE(regression coefficient:0.011,95%CI 0.001-0.021),25(OH)D in male patients with dust mite allergy was positively correlated with lgTIgE(regression coefficient:0.026,95%CI 0.010-0.043).There was no significant correlation between 25(OH)D and lgTIgE in the other groups.Conclusion Adult serum 25(OH)D levels is positively correlated with total IgE levels.
7.Analysis the risk factors and the prevalence of Laryngopharyngeal reflux disease in Fuzhou area
Yao LI ; Xianming CHEN ; Wenling GUO ; Wentao WANG ; Ming LU
Chinese Archives of Otolaryngology-Head and Neck Surgery 2017;24(4):202-206
OBJECTIVE To assess the prevalence and analyze the influence factors of laryngopharyngeal reflux disease(LPRD) in the Fuzhou region, in order to provide a theoretical basis for the development of prevention and control measures for LPRD. METHODS A questionnaire survey in residents in Fuzhou by a random cluster sampling was carried out. Individual information, reflux symptom index(RSI) of Belafsky and risk factors were included. Patients more than 13 scores of RSI were defined as LPRD. Data were statistically analyzed. RESULTS A total of 4100 residents were investigated, 4063 of them were available. The prevalence of LPRD was 5.00%. Often eating too much, often drinking strong tea, menolipsis, rhinitis, tonsillitis were closely related to LPRD. CONCLUSION The prevalence of LPRD in Fuzhou region were closely related to many factors.
8.Isolation of Peptides Binding to KDR Specifically Using Phage Display
Jie WU ; Huipeng CHEN ; Hongbin ZHANG ; Jie WANG ; Wenling ZHENG
Chinese Journal of Cancer Biotherapy 1995;0(03):-
Objective: To isolate small molecular polypeptides which bind to KDR specifically using C7 and 12 peptide libraries. Methods: KDR/IgGFc was coated directly on plates, C7 and 12 peptide libraries are then applied, followed by vigorous washings in washing buffers to remove most non-specifically bound phage and to select specific phage particals by VEGF suspension and elution in acid buffers. The positive phage clones were detected by ELISA, cell-ELISA and competitive binding ELISA. Results: After three washes, 12 positive phage clones were selected and sequenced. Conclusion: A conserved peptide motif was not found in these sequences. The peptide binding to KDR specifically may be helpful for lead drug to improve selectivity and decrease the side effect of anti cancer drug in clinical treatment.
9.Expressions of tissue factor and tissue factor pathway inhibitor in the atherosclerotic plaque
Na LI ; Lianfeng CHEN ; Yuannan KE ; Wenling ZHU
Basic & Clinical Medicine 2006;0(07):-
Objective To observe the expression and location of TF and TFPI in femoral artery atherosclerotic plaque.Methods We detected the expressions and locations of TF and TFPI in femoral artery atherosclerotic plaque by immunohistochemical and double-stain immunohistochemical method.We detected TF mRNA and TFPI mRNA expressions in atherosclerotic plaque by RT-PCR,with the normal umbilical artery as a control.ResultsThe normal umbilical artery contained little TF,TFPI and their mRNA in the adventitia.A great deal of TF,TFPI and their mRNA were found in the tunica intima of the femoral artery atherosclerotic plaque.Conclusion Expression of TF,TFPI and their mRNA of all types of cells and stroma in the proliferative tunica intima.
10.Prognostic significance of pelvic lymphadenectomy in patients with bladder cancer
Shuhua WANG ; Xusheng CHEN ; Zhenting ZHANG ; Wenling WANG ; Xin YAO
Chinese Journal of Clinical Oncology 2015;(17):866-870
Objective:To evaluate the prognostic significance of standard pelvic lymphadenectomy on the disease-free survival (DFS) rate of bladder cancer patients undergoing radical cystectomy (RC) and to discuss the influencing factors of lymph node positivity and the relationship between positive lymph nodes and lymphadenectasis. Methods:This prospective analysis includes 120 cases of bladder cancer treated with pelvic lymphadenectomy and RC in Tianjin Medical University Cancer Institute and Hospital between 2008 and 2013. The cases were divided into two groups, namely, the standard pelvic lymphadenectomy group (Group A) and the nonstandard pelvic lymphadenectomy group (Group B). The relationships among positive lymph nodes, lymphadenectasis, tumor stage, and patho-logical grade were retrospectively analyzed. Results:The 1-, 3-, and 5-year overall survival rates of 120 patients were 84%, 69.9%, and 57.9%, respectively. Group A was significantly correlated with a better 3-year overall survival rate than Group B, i.e., 78.4%vs. 46.2%(P<0.05). Lymphadenectasis influenced the DFS rate of bladder cancer patients after RC with pelvic lymphadenectomy, i.e., 50.0%vs. 86.4%(χ2=9.303, P<0.05). Meanwhile, lymphadenectasis was positively correlated with lymph node positivity (P<0.001). Tumor stage, histological subtype (urothelial carcinoma and non-urothelial carcinoma), and age were the prognostic factors for bladder cancer (P<0.05). Conclusion:Intraoperative lymphadenectasis is the influencing factor of lymph node positivity. This study determined that standard pel-vic lymphadenectomy and lymphadenectasis may influence the DFS rate after RC and are the independent risk factors for the prognosis of bladder cancer. Creating evidence-based guidelines of standardized lymphadenectomy for further improvement of the surgical quali-ty and survival of bladder cancer patients is essential.