1.Effect of Different Penetration Enhancers on Percutaneous Absorption of Xiaoyan Runma Mucilage
Yuna ZHAO ; Ting GAO ; Jing CHEN
Herald of Medicine 2016;35(8):828-831
Objective To investigate the effects of different penetration enhancers on percutaneous absorption of Xiaoyan Runma mucilage in vitro, and to improve the curative efficacy of this mucilages through selection of the effective penetration enhancers. Methods Xiaoyan Runma mucilage was prepared with different penetration enhancers. An intelligent permeability instrument was used for in vitro percutaneous absorption test of rats , with isolated mice abdomen skin serving as in vitro transdermal barrier and saline isotonic solution as receptor fluid. Then the contents of lidocaine hydrochloride in receptors were determined by HPLC.The accumulative transit dose (Q) and percutaneous permeability (J) within 12 h were calculated and compared with those of mucilage without any enhancer. Results With Q value serving as an index, different enhancers had different promote permeation effects on Xiaoyan Runma mucilage, and the effects in descending order were as follows:4% azone [(222.75±3.4) μg?(cm2)-1]>2% azone[(207.42±5.1) μg?(cm2)-1]>3% menthol [(183.38±4.9) μg?(cm2)-1]>5%menthol [(160.82±5.4) μg?(cm2)-1]>2% azone+3% menthol [(151.25±5.5) μg?(cm2)-1]>2% azone+5% isopropyl myristate [(127.26±7.1) μg?(cm2)-1]>2% oleic acid [(125.16±6.5) μg?(cm2)-1]>no enhancer [(109.82±8.2)μg?(cm2)-1].4% azone was the best penetration enhancer for the mucilage delivery in vitro, with Q and J value as [(222.75± 3.4)μg?( cm2 )-1 ] and 19. 896 μg?( cm2 )-1?h-1 , respectively, which was 2. 08 times those of mucilages without any enhancer. Conclusion Being as a transdermal absorption enhancer of Xiaoyan Runma mucilage, 4% azone has the best effect. This study can provide the optimal formulation for transdermal delivery system of Xiaoyan Runma mucilage.
2.Isolation,characterization and biological activity of a plasminogen activator from Gloydius brevicaudus venom
Zhiqiang ZHANG ; Jinhua ZHANG ; Ruiming YU ; Yuna LI ; Jianji CHEN ; Yunlu XU
Chinese Pharmacological Bulletin 2003;0(12):-
Aim To isolate and purify a novel plasminogen activator(PA)from Gloydius brevicaudus venom(GBV)and study characterization and biological activities of GBV-PA.Methods Affinity chromatography in Benzamidine Sepharose 6B(AC)and Lichrospher C-18 4.6/250 reversed phase chromatography(RPC)were used for isolation and purification;SDS-PAGE was used to detect molecular weight(MW);Disc polyacrylamide gel eletrophoresis was used to measure the point of isoelectric(pI);Chromogenic substrate method was used to observe the biological activities.Results A novel GBV-PA which its purification reached the homogeneity level was isolated and purified from GBV by AC and RPC;The MW of the novel GBV-PA was 3.26?104 and the pI was 5.2;The novel GBV-PA activated human plasminogen specifically and the special activity was 2.87 t-PA IU?mg-1;Moreover,our results indicated that this novel GBV-PA was a serine proteinase which had no affinity to fibrin.Conclusion A novel GBV-PA that can be isolated and purificated from GBV by AC and RPC was proved to be a serine protease and has no affinity to fibrin.
3.SWOT analysis of clinical application of modified early warning score
Xiaoyan LI ; Yuna DU ; Min CHEN ; Qiuxiang SHEN ; Jixiang HOU ; Junxia WANG ; Xiuli XING
Chinese Critical Care Medicine 2019;31(4):509-512
The modified early warning score (MEWS), as a rapid assessment and early warning scoring tool, has been widely used in patients in China, which can help nurses to identify potentially critical patients early, but not in all clinical fields. Through the retrieval of the relevant literature of the clinical application of the MEWS in Wanfang Medical Database from 2011 to 2018, the SWOT analysis was used in this paper [strength (S), weakness (W), opportunities (O) and threats (T)] methods, to systematically analyze the advantages, problems existence, implementation opportunities and challenges in the clinical application of the MEWS in our country. The purpose of this study was to obtain the best cut-off value of MEWS in different diseases and to formulate standard early-warning intervention measures for MEWS, which may provide reference for clinical workers to carry out relevant research.
4.The mediating effect of fear of disease progress between cardiac discomfort symptoms and post-traumatic stress disorder in patients with acute myocardial infarction
Jianxiu DONG ; Jianhui WANG ; Hui YANG ; Yi ZHANG ; Changxiang CHEN ; Yuna JIA ; Wenhong CHANG ; Jing HAN
Chinese Journal of Behavioral Medicine and Brain Science 2021;30(9):806-810
Objective:To explore the relationship between cardiac discomfort symptoms, fear of disease progress and post-traumatic stress disorder (PTSD) in patients with acute myocardial infarction(AMI) after discharge, and to clarify main intervention direction of PTSD in patients with AMI.Methods:Patients with AMI who were discharged from Tangshan Gongren Hospital between 1 month and 1 year were selected from November 2019 to November 2020.The cardiac discomfort symptoms scale, fear of progress questionnaire(FoP-Q-SF) and post-traumatic stress disorder self-rating scale(PTSD-SS) were used to investigate cardiac discomfort symptoms, fear of disease progress level and post-traumatic stress disorder status.Spearman rank correlation analysis was used to analyze the relationship between cardiac discomfort symptoms, fear of disease progress and post-traumatic stress disorder by SPSS 24.0 software. The mediating effect of fear of disease progress was analyzed by AMOS 24.0 software.Results:The PTSD score was (32.78±12.38) of patients with AMI discharged from hospital for 1 month to 1 year and the incidence of PTSD was 12.3%.Spearman correlation test showed cardiac discomfort symptoms and fear of disease progress were positively correlated with PTSD( r=0.530, 0.723, both P<0.01) and cardiac discomfort symptoms was positively correlated with fear of disease progress( r=0.518, P<0.01). Mediating effect test showed that fear of disease progress was a complete mediator between cardiac discomfort symptoms and PTSD. Conclusion:Cardiac discomfort symptoms can affect PTSD through a complete mediator of fear of disease progress.
5.Exploration and practice of organ donation prevention and control management under COVID-19 epidemic
Yuan LIU ; Yuna ZHI ; Bin ZHANG ; Chen SUN ; Lu WANG ; Guangming LI
Organ Transplantation 2020;11(5):553-
Novel coronavirus pneumonia (COVID-19) is currently raging worldwide, and the prevention and control situation is very grim. Gratifying achievements of organ donation have been made in China since its implementation. Due to the characteristics of potential donors, such as complicated personnel structure, sudden onset and critical illness, it is necessary for multi-department to contact with the donors and their families during the work link of donor evaluation, family communication, donor transportation, organ function maintenance and organ procurement, which raises higher requirement for the screening and management of potential donors under COVID-19 epidemic. During the outbreak, Beijing Youan Hospital, Capital Medical University has completed 9 cases of organ donation, formulated the relevant screening process, established the prevention and control requirements, and gained certain experience and effects, which benefits the orderly and smooth development of organ donation under the COVID-19 epidemic.
6.A comparative study of early warning score,blood glucose score and the two scores in predicting the prog-nosis of patients with acute diabetic complications
Xiaoyan LI ; Fanjie MENG ; Yulong DUAN ; Xuwei JIANG ; Min CHEN ; Yuna DU
The Journal of Practical Medicine 2018;34(3):397-400
Objective To compare the Modified Early Warning Score(MEWS),blood glucose value score and the two scores combined with the ability to predict the prognosis of patients with acute complication of diabetes mellitus,and to explore the most suitable assessment tools. Methods 419 patients with acute complica-tions were collected in diabetic mellitus. To put the admission time as the inital observation point,MEWS score, blood glucose value score and MEWS combined with blood glucose value were assessed and compared between the time point of admission and discharge by ROC curve.Results Using death as a prediction index,MEWS score of subjects operating characteristic area under the curve of AUCROC was 0.875 and the optimal cut-off value of was over 4 in the sensitivity of 78.43%,specificity of 85.60%,the positive predictive valueof 43.01% and the negative predictive value of 96.63% independently. The average score of blood glucose area under ROC curve AUCROC was 0.681 and the optimal cut-off value was 2 in the sensitivity of 50.98%,the specificity of 85.33% the positive predictive value of 73.4% and negative predictive value of 67.5% respectively. Two scores combined with area under ROC curve AUCROCwas 0.982,and the optimal cut-off value was over 7 in the sensitivity of 94.12%,the specificity of 95.65%,the positive predictive value of 75% and the negative predictive value of 99.15% individually. Conclusion For predicting the prognosis of patients with acute complications of diabetes,the combined scores are better than the pure MEWS score and blood glucose value.It is worth of clinical application.
7.The effective connection of default mode network changes in patients with type 2 diabetes mellitus
Liying ZHANG ; Zhizhong SUN ; Limin GE ; Zidong CAO ; Weiye LU ; Wenbin QIU ; Yuna CHEN ; Shijun QIU
Chinese Journal of Diabetes 2024;32(2):91-96
Objective To investigate the influence of type 2 diabetes mellitus(T2DM)on cognitive function and the effective connectivity with in the default mode network(DMN)in the brain.Methods A total of 93 hospitalized patients diagnosed with T2DM were enrolled in this study as T2DM group from The First Affiliated Hospital of Guangzhou University of Chinese Medicine during September 2021 to December 2022.Simultaneously,108 healthy individuals were recruited from the community as normal control(NC)group.The cognitive functions were evaluated in the two groups.A random dynamic causal modeling approach was employed to analyze the effective connectivity within DMN in both groups.Additionally,Pearson correlation analysis was performed to examine the association between differential connectivity,clinical indicators,and cognitive scores in both groups.Results In comparison to the NC group,T2DM individuals exhibited statistically significant reductions in scores in the auditory verbal learning test(AVLT)for immediate recall and the digit symbol substitution test(DSST)(P<0.05).Additionally,they displayed a notable decrease in effective connectivity from the left lateral parietal cortex(LLPC)to the posterior cingulate cortex(PCC),as well as from the LLPC to the right lateral parietal cortex(RLPC)within the DMN(P<0.05).Pearson correlation analysis unveiled a negative association between HbA1c levels and the strength of effective connectivity from LLPC to PCC.Conversely,a positive correlation was observed between AVLT(immediate)scores and the strength of effective connectivity from LLPC to PCC and LLPC to RLPC.Additionally,DSST scores displayed a positive correlation with the strength of effective connectivity from LLPC to PCC(P<0.05).Conclusion Patients with T2DM display compromised effective connectivity from LLPC to PCC and LLPC to RLPC within the DMN network,and this alteration may associated with cognitive impairment.
8.Risk factors associated with emergency peripartum hysterectomy.
Rong JIN ; Yuna GUO ; Yan CHEN
Chinese Medical Journal 2014;127(5):900-904
BACKGROUNDUse of an emergency peripartum hysterectomy (EPH) as a lifesaving measure to manage intractable postpartum hemorrhage (PPH) appears to be increasing recently around the world, and the indications for EPH have changed. The object of this study is to identify risk factors associated with EPH.
METHODSWe conducted a case-control study of 21 patients who underwent EPH because of intractable PPH between January 1, 2005 and June 30, 2013, at the International Peace Maternity and Child Health Hospital Shanghai Jiao Tong University, School of Medicine (IPMCH). The parametric t-test, chi-square tests and Logistic regression models were used for analysis to identify the risk factors. The results were considered statistically significant when P < 0.05.
RESULTSThere were 89 178 deliveries during the study period. Twenty-one women had an EPH, with an incidence of 24 per 100 000 deliveries. The loss of blood during postpartum hemorrhage of the EPH group was (5 060.7 ± 3 032.6) ml, and that of the control group was (2 040.8 ± 723.5) ml. There was a significant difference of PHH between the EHP group and the control group (P = 0.001). Independent risk factors for EPH from a logistic regression model were: disseminated intravascular coagulation (DIC) (OR: 9.9, 95% CI 2.8-34, P = 0.003), previous cesarean section (OR: 5.27; 95% CI: 1.48-17.9, P = 0.009), placenta previa (OR: 6.9; 95% CI 1.6-2.9, P = 0.008), the loss of PPH (OR: 1.001; 95% CI 1.001-1.002, P = 0.002), placenta accreta (OR: 68; 95% CI 10-456, P = 0.004), the use of tocolytic agents prenatally (OR: 6.55, 95%CI 1.34-32.1,P = 0.049), and fetal macrosomia (OR: 6.9, 95% CI 1.25-38, P = 0.049).
CONCLUSIONSignificant risk factors of EPH are DIC, placenta previa, PPH, previous cesarean delivery, and placenta accrete, the use of tocolytic agents prenatally, and fetal macrosomia.
Adult ; Case-Control Studies ; Emergencies ; Female ; Fetal Macrosomia ; complications ; Humans ; Hysterectomy ; statistics & numerical data ; Middle Aged ; Obstetric Labor Complications ; epidemiology ; Placenta Accreta ; surgery ; Postpartum Hemorrhage ; surgery ; Pregnancy ; Risk Factors ; Tocolytic Agents ; adverse effects
9. Study on the features of drug dosage’s in Japanese Hanfang
Liming CHEN ; Tianyuan XIA ; Yuna GUO ; Lurui FAN
International Journal of Traditional Chinese Medicine 2019;41(9):911-915
The common Japanese Kampo medicine issued by MHLW was sorted and analyzed, record total ingredients, average dosage, total dosage of general prescription, maximal and minimal dosage of general prescription of Japanese Kampo was originated from the classic prescription. The ingredients of each prescription medicine was relatively less, and mostly composed of 4 to 9 ingredients. The average dosage was less, around 15-25 g and the average dosage of single drug was 3.16 g. The dose of Japanese Kampo medicine was relatively less, and it was only about 1/4 of the drug used in Chinese mainland. The reasons were related to many factors like historical evolution of Chinese prescription, the habit of taking medicine, people’s constitution of different nations and so on.
10.Characteristics of body height, body weight and body mass index distributions in children aged 3-17 years in China
Wei CAO ; Peipei XU ; Titi YANG ; Xuehong PANG ; Zhenyu YANG ; Yuying WANG ; Tao XU ; Bowen CHEN ; Wenhua ZHAO ; Qian ZHANG ; Yuna HE
Chinese Journal of Epidemiology 2024;45(11):1487-1493
Objective:To investigate the distribution characteristics of body height, body weight and body mass index (BMI) in children aged 3-17 years in China.Methods:Data were obtained from the National Nutrition and Health Systematic Survey in 0-18 years old children in China. The study selected 70 853 children aged 3-17 years from 28 urban and rural survey sites in 14 provinces (autonomous regions and municipalities) in 7 regions of China with multi-stage stratified cluster random sampling. M ( Q1, Q3) was used to describe the region, age and gender specific body height, body weight and BMI in the children aged 3-17 years. Wilcoxon rank sum test was used to compare the body height, body weight, and BMI between boys and girls in same age group. Kruskal-Wallis H rank sum test was used to compare the body height, body weight and BMI among boys in different age groups and among girls in different age groups, as well as among boys in same age group and among girls in same age group from different regions, and DSCF method was used for further pairwise comparisons. Results:In this study, the median body height and body weight were 172.0 cm and 62.9 kg in 17-year-old boys and 160.0 cm and 53.7 kg in 17-year-old girls. The median for children's body height, body weight, and BMI in most age groups were higher in northeastern and northern China than in southern China, and the differences could be observed until age 17 years. The differences in body weight and BMI in children in northeastern and northern China were greater in Q3 than in Q1 compared with southern China. Conclusions:The body height of children aged 3-17 years continues to increase in China. Northeastern and northern China have more children with higher bodyweight, showing an obvious body weight increase trend, to which close attention needs to be paid.