1.Compound Yuye Decoction protects diabetic rats against cardiomyopathy by inhibiting myocardial apoptosis and inflammation via regulating the PI3K/Akt signaling pathway
Wenxiang ZHANG ; Huixian GU ; Pengde CHEN ; Siyu WU ; Hongyan MA ; Lan YAO
Journal of Southern Medical University 2024;44(7):1306-1314
Objective To explore the therapeutic mechanism of compound Yuye Decoction against diabetic cardiomyopathy(DCM).Methods Drugbank,Gene Cards,OMIM and PharmGKb databases were used to obtain DCM-related targets,and the core targets were identified and functionally annotated by protein-protein interaction network analysis followed by GO and KEGG enrichment analysis.The"Traditional Chinese Medicine-Key Component-Key Target-Key Pathway"network was constructed using Cytoscape 3.9.1,and molecular docking was carried out for the key components and the core targets.In the animal experiment,Wistar rat models of DCM were treated with normal saline or Yuye Decoction by gavage at low(0.29 g/kg)and high(1.15 g/kg)doses for 8 weeks,and the changes in cardiac electrophysiology and histopathology were evaluated.The changes in serum levels of LDH,CK,and CK-MB were examined,and myocardial expressions of PI3K,P-PI3K,Akt,P-AKT,BAX,IL-6,and TNF-α were detected using Western blotting.Results We identified 61 active compounds in Yuye Decoction with 1057 targets,3682 DCM-related disease targets,and 551 common targets between them.Enrichment of the core targets suggested that apoptosis,inflammation and the PI3K/Akt pathways were the key signaling pathways for DCM treatment.Molecular docking studies showed that the active components in Yuye Decoction including gold amidohydroxyethyl ester and kaempferol had strong binding activities with AKT1 and PIK3R1.In DCM rat models,treatment with Yuye Decoction significantly alleviated myocardial pathologies,reduced serum levels of LDH,CK and CK-MB,lowered myocardial expressions of BAX,IL-6 and TNF-α,and increased the expressions of P-PI3K and P-AKT.Conclusion The therapeutic effect of compound Yuye Decoction against DCM is mediated by its multiple active components that act on multiple targets and pathways to inhibit cardiomyocyte apoptosis and inflammatory response by regulating the PI3K/Akt signaling pathway.
2.Cross-sectional study on working mode and human resource setting of PIVAS in national medical institutions
Ke LI ; Hongyan GU ; Dechun JIANG ; Lulu SUN ; Yingbo ZHAO
China Pharmacy 2024;35(18):2199-2202
OBJECTIVE To know about the working mode and human resource status of pharmacy intravenous admixture services (PIVAS) in national medical institutions. METHODS Through questionnaire survey, the national PIVAS was invited to fill out questionnaire and statistical analysis was performed on the effective sample data related to PIVAS working mode and human resources in the questionnaire. RESULTS In this study, 761 PIVAS from 722 medical institutions of 29 provinces were involved in the questionnaire survey, with 471 valid questionnaires for working mode and 441 valid questionnaires for human resources survey. In terms of working mode, among 471 PIVAS, 292 PIVAS (62.0%) were in pharmacist-alone mode, and 176 PIVAS (37.4%) were in pharmacist-nurse cooperative mode; there was no significant difference in the types of medical orders received by PIVAS between these two working modes except for the other medical orders (P>0.05). In terms of human resource setting, among 441 PIVAS, the average number of total staff of single PIVAS was 24(16,33), including 11(6,19) pharmacists, 7(2,13) nursing staff, and 3(1,5) workers; there was a statistically significant difference in the number of personnel among three groups (P< 0.01). The per capita income of PIVAS respondents in 2019 was [7.9(4.8,10.7)]×104 yuan, and in 2021 it was [8.8(5.8,11.7)]× 104 yuan, with an increase of 9.0% compared to 2019. The difference between the two groups was statistically significant (P< 0.01). CONCLUSIONS Medical institutions’ PIVAS in China had not fully implemented the pharmacist-alone work model, and some medical institutions had chosen a pharmacist-nurse cooperative mode. It is suggested that relevant departments formulate corresponding qualification requirements and training standards for nursing personnel as soon as possible based on sufficient research on PIVAS’s demand for nursing professionals.
3.Cross-sectional study on balance of payments in PIVAS of medical institutions nationwide
Ke LI ; Hongyan GU ; Dechun JIANG ; Lulu SUN ; Yingbo ZHAO
China Pharmacy 2024;35(20):2449-2452
OBJECTIVE To know about the pharmacy intravenous admixture charge and operation balance of pharmacy intravenous admixture services (PIVAS) in national medical institutions. METHODS Using questionnaire survey method, the national PIVAS leaders were invited to fill in the questionnaire, investigation and statistical analysis of the drug dispensing charge standard and the income and expenditure situations of PIVAS nationwide were conducted. RESULTS A total of 761 PIVAS completed the questionnaire, among which 466 PIVAS (61.2%) had already started implementing pharmacy intravenous admixture charge, mainly in tertiary hospitals. The charge standards for chemotherapy drugs and parenteral nutrition solutions were relatively high, while the standards for packaged drugs were the lowest, with differences in charge standards among provinces(P<0.05). Among the 25 provinces that reported annual drug preparation fee revenue, Hubei had the highest revenue in both 2019 and 2021. In 2019, the number of PIVAS with a balance of payments was more than that of PIVAS with an imbalance of payments, but the number of PIVAS with an imbalance of payments in 2021 exceeded the number of PIVAS with a balance of payments (P<0.05); among them, eight provinces were unbalanced in 2019 and 2021, such as Tianjin, Chongqing, Guizhou, etc. CONCLUSIONS PIVAS charge standards of the surveyed medical institutions in all provinces are not unified. It is suggested to improve the charge standard further, formulate the charge adjustment cycle, and promote a sustainable development of PIVAS.
4.Efficacy and safety of prednisone combined with standard quadruple antituberculosis therapy in the treatment of tuberculous pleurisy
Hongyan XU ; Tianxiang ZHANG ; Honghong GU ; Wei MA ; Yizhen HAN ; Qiyuan WANG
Chinese Journal of Primary Medicine and Pharmacy 2024;31(10):1507-1511
Objective:To investigate the efficacy and safety of prednisone combined with standard quadruple antituberculosis therapy (HRZE) in the treatment of tuberculous pleurisy.Methods:A prospective study was conducted involving 120 patients with tuberculous pleurisy who were admitted to the Shaanxi Provincial Tuberculosis Prevention and Control Hospital from February 2021 to February 2023. The patients were randomly assigned to a study group and a control group, with 60 patients in each group, using a computer-generated randomization method. The control group received HRZE alone, while the study group received prednisone therapy and HRZE. The efficacy, clinical indicators, adverse reactions, and serum inflammatory factor levels were compared between the two groups.Results:The total response rate in the study group was significantly higher than that in the control group [93.33% (56/60) vs. 78.33% (47/60), χ2 = 5.55, P < 0.05). In the study group, the time for clinical symptom improvement was (10.34 ± 1.65) days, the time for pleural effusion absorption was (21.37 ± 4.16) days, the pleural thickness measured (2.15 ± 0.35) mm, and the duration of hospitalization was (23.19 ± 4.56) days. They were significantly shorter or smaller than those in the control group [(13.27 ± 2.30) days, (27.25 ± 4.95) days, (2.62 ± 0.40) mm, (28.42 ± 5.60) days, t = 8.02, 7.04, 6.85, 5.61, all P < 0.05]. There was no significant difference in the incidence of adverse reactions between the two groups (χ2 = 2.91, P > 0.05). After 8 weeks of treatment, all serum inflammatory factors improved in both groups compared with baseline levels. In the study group, levels of interleukin-6 [(90.37 ± 12.05) ng/L] and interleukin-18 [(270.94 ± 14.58) ng/L] were significantly lower than those in the control group [(110.59 ± 16.90) ng/L, (296.10 ± 25.29) ng/L, t = 7.55, 6.68, both P < 0.05]. Levels of interleukin-10 [(78.91 ± 8.25) ng/L] and soluble interleukin-2 receptor [(1875.82 ± 359.23) pg/L] in the study group were significantly higher than those in the control group [(70.40 ± 7.16) ng/L, (1566.87 ± 311.02) pg/L, t = -6.03, -5.04, both P < 0.05]. Conclusion:The combination of prednisone and HRZE demonstrates good efficacy and safety, and it is beneficial for improving inflammatory factors.
5.Changing resistance profiles of Proteus,Morganella and Providencia in hospitals across China:results from the CHINET Antimicrobial Resistance Surveillance Program,2015-2021
Yunmin XU ; Xiaoxue DONG ; Bin SHAN ; Yang YANG ; Fupin HU ; Demei ZHU ; Yingchun XU ; Xiaojiang ZHANG ; Ping JI ; Fengbo ZHANG ; Yi XIE ; Mei KANG ; Chuanqing WANG ; Pan FU ; Yuanhong XU ; Ying HUANG ; Ziyong SUN ; Zhongju CHEN ; Yuxing NI ; Jingyong SUN ; Yunzhuo CHU ; Sufei TIAN ; Zhidong HU ; Jin LI ; Yunsong YU ; Jie LIN ; Sufang GUO ; Lianhua WEI ; Fengmei ZOU ; Hong ZHANG ; Chun WANG ; Yunjian HU ; Xiaoman AI ; Chao ZHUO ; Danhong SU ; Dawen GUO ; Jinying ZHAO ; Hua YU ; Xiangning HUANG ; Wen'en LIU ; Yanming LI ; Yan JIN ; Chunhong SHAO ; Xuesong XU ; Chao YAN ; Shanmei WANG ; Yafei CHU ; Lixia ZHANG ; Juan MA ; Shuping ZHOU ; Yan ZHOU ; Lei ZHU ; Jinhua MENG ; Fang DONG ; Hongyan ZHENG ; Fangfang HU ; Han SHEN ; Wanqing ZHOU ; Wei JIA ; Gang LI ; Jinsong WU ; Yuemei LU ; Jihong LI ; Jinju DUAN ; Jianbang KANG ; Xiaobo MA ; Yanping ZHENG ; Ruyi GUO ; Yan ZHU ; Yunsheng CHEN ; Qing MENG ; Shifu WANG ; Xuefei HU ; Jilu SHEN ; Wenhui HUANG ; Ruizhong WANG ; Hua FANG ; Bixia YU ; Yong ZHAO ; Ping GONG ; Kaizhen WEN ; Yirong ZHANG ; Jiangshan LIU ; Longfeng LIAO ; Hongqin GU ; Lin JIANG ; Wen HE ; Shunhong XUE ; Jiao FENG ; Chunlei YUE
Chinese Journal of Infection and Chemotherapy 2024;24(4):410-417
Objective To understand the changing distribution and antimicrobial resistance profiles of Proteus,Morganella and Providencia in hospitals across China from January 1,2015 to December 31,2021 in the CHINET Antimicrobial Resistance Surveillance Program.Methods Antimicrobial susceptibility testing was carried out following the unified CHINET protocol.The results were interpreted in accordance with the breakpoints in the 2021 Clinical & Laboratory Standards Institute(CLSI)M100(31 st Edition).Results A total of 32 433 Enterobacterales strains were isolated during the 7-year period,including 24 160 strains of Proteus,6 704 strains of Morganella,and 1 569 strains of Providencia.The overall number of these Enterobacterales isolates increased significantly over the 7-year period.The top 3 specimen source of these strains were urine,lower respiratory tract specimens,and wound secretions.Proteus,Morganella,and Providencia isolates showed lower resistance rates to amikacin,meropenem,cefoxitin,cefepime,cefoperazone-sulbactam,and piperacillin-tazobactam.For most of the antibiotics tested,less than 10%of the Proteus and Morganella strains were resistant,while less than 20%of the Providencia strains were resistant.The prevalence of carbapenem-resistant Enterobacterales(CRE)was 1.4%in Proteus isolates,1.9%in Morganella isolates,and 15.6%in Providencia isolates.Conclusions The overall number of clinical isolates of Proteus,Morganella and Providencia increased significantly in the 7-year period from 2015 to 2021.The prevalence of CRE strains also increased.More attention should be paid to antimicrobial resistance surveillance and rational antibiotic use so as to prevent the emergence and increase of antimicrobial resistance.
6.Compound Yuye Decoction protects diabetic rats against cardiomyopathy by inhibiting myocardial apoptosis and inflammation via regulating the PI3K/Akt signaling pathway
Wenxiang ZHANG ; Huixian GU ; Pengde CHEN ; Siyu WU ; Hongyan MA ; Lan YAO
Journal of Southern Medical University 2024;44(7):1306-1314
Objective To explore the therapeutic mechanism of compound Yuye Decoction against diabetic cardiomyopathy(DCM).Methods Drugbank,Gene Cards,OMIM and PharmGKb databases were used to obtain DCM-related targets,and the core targets were identified and functionally annotated by protein-protein interaction network analysis followed by GO and KEGG enrichment analysis.The"Traditional Chinese Medicine-Key Component-Key Target-Key Pathway"network was constructed using Cytoscape 3.9.1,and molecular docking was carried out for the key components and the core targets.In the animal experiment,Wistar rat models of DCM were treated with normal saline or Yuye Decoction by gavage at low(0.29 g/kg)and high(1.15 g/kg)doses for 8 weeks,and the changes in cardiac electrophysiology and histopathology were evaluated.The changes in serum levels of LDH,CK,and CK-MB were examined,and myocardial expressions of PI3K,P-PI3K,Akt,P-AKT,BAX,IL-6,and TNF-α were detected using Western blotting.Results We identified 61 active compounds in Yuye Decoction with 1057 targets,3682 DCM-related disease targets,and 551 common targets between them.Enrichment of the core targets suggested that apoptosis,inflammation and the PI3K/Akt pathways were the key signaling pathways for DCM treatment.Molecular docking studies showed that the active components in Yuye Decoction including gold amidohydroxyethyl ester and kaempferol had strong binding activities with AKT1 and PIK3R1.In DCM rat models,treatment with Yuye Decoction significantly alleviated myocardial pathologies,reduced serum levels of LDH,CK and CK-MB,lowered myocardial expressions of BAX,IL-6 and TNF-α,and increased the expressions of P-PI3K and P-AKT.Conclusion The therapeutic effect of compound Yuye Decoction against DCM is mediated by its multiple active components that act on multiple targets and pathways to inhibit cardiomyocyte apoptosis and inflammatory response by regulating the PI3K/Akt signaling pathway.
7.Periconceptional maternal homocysteine and birth weight outcomes in offspring: a prospective cohort study
Yi ZHANG ; Xiaotian CHEN ; Qinyu YAO ; Hongyan CHEN ; Mengru LI ; Dingmei WANG ; Yalan DOU ; Yuanzhou PENG ; Xiaoyan GU ; Weili YAN ; Guoying HUANG
Chinese Journal of Pediatrics 2024;62(2):120-128
Objective:To quantify the associations between periconceptional maternal homocysteine (HCY) and offspring′s birth weight and risk of small for gestational age (SGA) infant.Methods:The 19 984 mother-child pairs in this prospective cohort study were recruited from the Shanghai preconception cohort; the infants were delivered from 1 st September 2016 to 11 th November 2022. A standardized questionnaire was used to collect the mothers′ demographic information, medical history, dietary supplement use, and maternal complications during pregnancy, and their serum samples were collected. Serum HCY, folate, and vitamin B 12 were measured using chemiluminescent microparticle immunoassay based on serum sample drawn at enrollment. Birth weight data were obtained from medical records. Multiple imputation methods were applied to handle missing data in key variables. Multivariable linear regression and Poisson regression models were used to analyze the relationship between maternal HCY concentration during the periconceptional period and the birth weight and SGA risk of the offspring. Results:A total of 9 452 pairs were enrolled preconceptionally and the remaining 10 532 pairs were enrolled in early pregnancy. The proportion of mothers whose pregnancy age was greater than 35 years was 9.2% (1 832/19 984), the proportion of primiparous women was 76.5% (15 283/19 984), the proportion of pre-pregnancy overweight and obesity was 14.0% (2 804/19 984), the proportion of using folic acid supplements before pregnancy was 21.4% (4 272/19 984), and the proportion of those who supplemented with folic acid during early pregnancy was 85.2% (8 976/10 532); gestational diabetes mellitus was in 6.2% (1 245/19 984), gestational hypertensive syndrome in 3.6% (711/19 984). The birth weight of the offspring was (3 297±468) g, and there were 1 962 SGA children (9.8%). The HCY concentration in the overall population in appropriate for gestational age during the periconceptional period was (7.9±3.2) μmol/L, with (8.3±3.7) μmol/L in the preconception subgroup and (7.3±2.4) μmol/L in the early pregnancy subgroup. After adjustment for the covariates of perinatal demographic information, adverse pregnancy outcomes, serum folate and vitamin B 12, increased maternal periconceptional HCY was significantly associated with lower offspring birth weight ( β=-2.30, 95% CI -4.43--0.16, P=0.035). Only the early pregnancy subgroup was significantly associated with lower offspring birth weight ( β=-7.39, 95% CI-11.50--3.21, P<0.001). No association was found between peripregnancy HCY and offspring SGA risk. However, elevated HCY in early pregnancy was associated with an increased risk of SGA in the offspring ( RR=1.05, 95% CI 1.01-1.08, P=0.002). Periconceptional vitamin B 12 was a mediator of the association between HCY and offspring birth weight, accounting for 16.5%, 41.2% and 5.4% of its total effect in the overall periconceptional population, the pre-pregnancy subgroup and the early pregnancy subgroup, respectively. Conclusions:Maternal periconceptional HCY level is associated with lower birth weight in offspring, but not with the risk of SGA. Elevated maternal HCY in early pregnancy subgroup may be associated with increased risk of SGA in offspring.
8.Establishment of the predictive model of repeated admissions for community-acquired pneumoniain adults
Yuanyuan WEI ; Hongyan GU ; Weiwei WANG ; Yiru ZHAO ; Bin DAI
Acta Universitatis Medicinalis Anhui 2023;58(12):2113-2118
Objective To analyze the risk factors of repeated admissions for community-acquired pneumonia(CAP)in adults,and to build a nomogram model to predict individual risk.Methods A total of 2 306 adult hospitalized patients with CAP in Beijing Shijitan Hospital affiliated to Capital Medical University from January 2018 to Decem-ber 2020 were retrospectively selected and divided into repeated admission group and control group according to whether they were readmitted within one year after discharge.Univariate logistic analysis and multivariate logistic a-nalysis were used to determine the risk factors.The risk factors were introduced into R 3.5.3 software to construct the nomogram prediction model.The calibration curve was drawn and the Hosmer-Lemeshow goodness of fit test was performed to evaluate the accuracy of the nomogram prediction model.The receiver operating characteristic(ROC)curve was drawn to evaluate the discrimination of the nomogram prediction model.The decision analysis curve was drawn to measure patient benefits.Results The age,gender,length of stay,total score of comorbidity index,use of special grade antibiotics,history of blood transfusion,and Vaccination history were risk factors of repeated hospi-tal admissions for CAP in adults.The nomogram prediction model of adult CAP repeated admission was constructed based on the above risk factors.The Hosmer-Lemeshow goodness of fit test showed that the fitting effect of the no-mogram prediction model was good(x2=8.873,P=0.353).The ROC curve analysis showed that the area under the curve of the test dataset was 0.775.The results of the decision analysis curve showed that when the threshold was 0.21,the model could generate a net profit of 0.104.Conclusion The nomogram model established in this study has good discrimination and accuracy in predicting the risk of adult CAP repeated admissions and has high clinical application value.
9.Efficacy of crisaborole ointment in clinical symptom relief in the early stage of childhood atopic dermatitis and in symptom improvement in the remission stage: a multicenter clinical study
Shan WANG ; Xingyu WANG ; Hong SHU ; Bin ZHANG ; Hang SHI ; Huan YANG ; Qiufang QIAN ; Hongyan MA ; Yuan LIANG ; Mutong ZHAO ; Chunping SHEN ; Lei JIAO ; Jing TIAN ; Yang WANG ; Ying GU ; Jing SUN ; Ying LIU ; Ping LI ; Hua WANG ; Lin MA
Chinese Journal of Dermatology 2023;56(9):815-821
Objective:To evaluate the efficacy and tolerability of crisaborole 2% ointment in the treatment of childhood atopic dermatitis (AD) at the early stage, and to compare the efficacy of every-other-day (Qod) regimen versus twice-a-week (Biw) regimen against recurrence in the remission stage of AD.Methods:A multicenter, randomized, open-label clinical trial was conducted. Totally, 150 children with mild to moderate AD aged 2 - < 18 years were enrolled from 6 hospitals (including Beijing Children′s Hospital, Capital Medical University, etc), and randomly divided into the Qod group (76 cases) and the Biw group (74 cases). In the acute stage of AD, both groups were treated with topical crisaborole 2% ointment on skin lesions twice a day for 2 - 4 weeks, as well as with emollients throughout the whole body. The improvement of early clinical symptoms was evaluated, and the occurrence of adverse reactions was recorded in the follow up. Once the investigator′s static global assessment (ISGA) scores decreased to 1 point or less, the patient would be enrolled into the remission stage. In the remission stage of AD, patients in the Qod group and Biw group were treated with crisaborole ointment every other day and twice a week respectively; the recurrence rate of AD in the remission stage was evaluated, as well as the severity of skin lesions, itching, life quality, and the occurrence of adverse reactions at weeks 4, 8, and 12. Statistical analysis was carried out with SPSS 23.0 software by using t test for comparisons of normally distributed continuous data between two groups, Mann-Whitney U test for non-normally distributed data, chi-square test for enumeration data, and Kaplan-Meier method for analysis of survival rates. Results:A total of 142 patients were enrolled in the modified intention-to-treat population, including 71 in the Qod group and 71 in the Biw group. In the acute stage of AD, the improvement of itching and skin lesions self-reported by the children or their family members occurred on days 1.9 (1.0, 3.0) and 2.0 (1.0, 4.1) after the application of crisaborole ointment, respectively. At the end of treatment in the acute stage, 89 children (62.7%) achieved ISGA 0/1 and successfully transferred into the remission stage. The follow-up in the remission stage was completed in 83 patients (44 in the Qod group and 39 in the Biw group). In addition, recurrence occurred in 19 (43.2%) and 12 (30.8%) patients in the Qod group and Biw group respectively, and there was no significant difference in the recurrence rate between the two groups ( χ2 = 1.36, P = 0.243) ; the average time to recurrence was 64.25 (95% CI: 53.33 - 75.17) days and 75.78 (95% CI: 65.46 - 86.10) days in the Qod group and Biw group respectively. Among the patients who were in the remission stage and had not yet experienced relapse at weeks 4, 8, and 12, there were no significant differences in the eczema area and severity index (EASI) scores, ISGA scores, pruritus numerical rating scale (NRS) scores, or quality-of-life scores between the two groups (all P > 0.05) at any time points, except for the ISGA scores at week 12 (Biw group: 0 [0, 1] point vs. Qod group: 1 [0, 1] point; Z = -2.31, P = 0.021). A total of 146 patients were enrolled in the safety set. During the study period, 70 adverse events occurred in 65 patients, with an incidence rate of 44.5%, and all were mild or moderate adverse events; 55 (37.7%) patients experienced discomfort at the medication site, which mainly referred to pain (45 cases, 30.8%) and mostly occurred in the tender and skinfold areas. Conclusions:Crisaborole 2% ointment could effectively relieve clinical symptoms in children with mild to moderate AD in the early stage, and intermittent treatment could continuously relieve clinical symptoms in the remission stage. The common adverse reaction was discomfort at the application site in the early stage of AD. There was no significant difference in the impact on AD recurrence in the remission stage between the Qod regimen and Biw regimen.
10.Component analysis of ethyl acetate fraction in Qubai tablet and its pharmacodynamic study on de melanocyte model of mice
Songleng DUAN ; Hongyan GU ; Honglei NIAN ; Ruo XING ; Dechun JIANG
China Pharmacy 2022;33(7):853-860
OBJECTIVE To study the components of ethyl acetate fraction in Qubai tablet ,and its pharmacodynamics on de melanocyte model ,and explore the material basis for anti-vitiligo effect of Qubai tablet. METHODS The ethyl acetate fraction of Qubai tablets was obtained by extraction ,and its components were analyzed by ultra performance liquid chromatography-mass spectrometry(UPLC-MS). Model control group ,vehicle control group and 8-methoxypsoralen(8-MOP)administration groups (10,50,100,150,200 μmol/L),ethyl acetate fraction administration groups of Qubai tablet (10,50,100,150,200 μg/mL) were set up in the experiment. By establishing the de melanocyte model ,the effects of ethyl acetate fraction of Qubai tablet on de melanocyte were studied from four aspects :cell number ,cell viability ,melanin formation and tyrosinase activity. RESULTS UPLC-MS component analysis preliminarily determined the structure of 64 compounds in the ethyl acetate fraction of Qubai tablet , of which 14 compounds were detected in positive and negative ion mode ;psoralen compounds accounted for the largest proportion , and the content of psoralen chromone chalcone was the highest in positive and negative ion mode. The results of pharmacodynamic study showed that the ethyl acetate fraction of Qubai tablet could increase the number of de melanocytes ,and significantly improve the cell proliferation rate ,the rate of promoting melanin formation and the rate of promoting tyrosinase activity in the process of melanin formation (P<0.01). CONCLUSIONS Psoralen compounds may be the material basis for the anti-vitiligo effect of ethyl acetate fraction of Qubai tablet ;good anti-vitiligo effect of ethyl acetate fraction of Qubai tablet may be related to the promotion of tyrosinase activity.

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