1.Pachymic acid exerts antitumor activities by modulating the Wnt/β-catenin signaling pathway via targeting PTP1B
Hao Department of Emergency, Affiliated Hangzhou First People&rsquo ; s Hospital, Zhejiang University School of Medicine, Hangzhou 310006, Zhejiang, China ; Kun Zhu ; Xue-Feng Zhang ; Yi-Hui Ding ; Bing Zhu ; Wen Meng ; Qing-Song Ding ; Fan Zhang
Asian Pacific Journal of Tropical Biomedicine 2024;14(4):170-180
Objective: To determine the inhibitory effects of pachymic acid on lung adenocarcinoma (LUAD) cells and elucidate its underlying mechanism. Methods: CCK-8, wound healing, Transwell, Western blot, tube formation, and immunofluorescence assays were carried out to measure the effects of various concentrations of pachymic acid on LUAD cell proliferation, metastasis, angiogenesis as well as autophagy. Subsequently, molecular docking technology was used to detect the potential targeted binding association between pachymic acid and protein tyrosine phosphatase 1B (PTP1B). Moreover, PTP1B was overexpressed in A549 cells to detect the specific mechanisms of pachymic acid. Results: Pachymic acid suppressed LUAD cell viability, metastasis as well as angiogenesis while inducing cell autophagy. It also targeted PTP1B and lowered PTP1B expression. However, PTP1B overexpression reversed the effects of pachymic acid on metastasis, angiogenesis, and autophagy as well as the expression of Wnt3a and β-catenin in LUAD cells. Conclusions: Pachymic acid inhibits metastasis and angiogenesis, and promotes autophagy in LUAD cells by modulating the Wnt/ β-catenin signaling pathway via targeting PTP1B.
2.Analysis of medical reimbursement rate and influencing factors under the DIP payment method
Meng-Yuan ZHAO ; Kun-He LIN ; Ying-Bei XIONG ; Yi-Fan YAO ; Zhi-He CHEN ; Yu-Meng ZHANG ; Li XIANG
Chinese Journal of Health Policy 2024;17(6):40-46
Objective:Analyze the medical reimbursement rate and influencing factors under the DIP payment method to refine the DIP payment policy,promote the optimization of internal operations in medical institutions,and ensure reasonable compensation.Methods:Based on the 2022 DIP fund settlement data from 196 medical institutions in City A,the study used multiple linear regression to analyze the factors affecting medical reimbursement rate and conducted a heterogeneity analysis for medical institutions of different levels.Results:The medical reimbursement rate for medical institutions in City A in 2022 was 103.32%.Medical institutions with lower CMI standardized inpatient costs,lower rates of deviation cases,tertiary care institutions,lower proportion of level-four surgeries,and lower ratios of resident to employee medical insurance cases have higher medical reimbursement rate(P<0.05).Heterogeneity analysis reveals that therates of deviation cases,the proportion of primary care diseases,the ratio of resident to employee medical insurance cases,and the low-standard admission rate have different impacts on medical institutions of different levels.Conclusion:Medical insurance departments should improve policies for primary care diseases,dynamically adjust disease catalogs and payment standards,optimize funding levels and institutional coefficients,and increase penalties for violations to ensure effective use of funds.Medical institutions need to strengthen their understanding of policies,focus on refined internal management,promote standardized and rational diagnosis and treatment through performance assessment transformation,and leverage their own advantages in medical services to reasonably increase the medical reimbursement rate.
3.A retrospective study on the efficacy of Roxadustat in peritoneal dialysis patients with erythropoietin hyporesponsiveness
Jie LIU ; Shuang LI ; Fan YANG ; Tianyu LI ; Rui LI ; Yousuf WAHEED ; Chen MENG ; Shulin LI ; Kun LIU ; Yanshan TONG ; Haisheng XU ; Chuankuo TIAN ; Xinglei ZHOU
The Korean Journal of Internal Medicine 2024;39(3):488-500
Background/Aims:
Roxadustat, an oral medication for treating renal anemia, is a hypoxia-inducible factor prolyl hydroxylase inhibitor used for regulating iron metabolism and promoting erythropoiesis. To investigate the efficacy and safety of roxadustat in patients undergoing peritoneal dialysis (PD) with erythropoietin hyporesponsiveness.
Methods:
Single-center, retrospective study, 81 PD patients (with erythropoietin hyporesponsiveness) were divided into the roxadustat group (n = 61) and erythropoiesis-stimulating agents (ESAs) group (n = 20). Hemoglobin (Hb), total cholesterol, intact parathyroid hormone (iPTH), brain natriuretic peptide (BNP), related indicators of cardiac function and high-sensitivity C-reactive protein (hs-CRP) were collected. Additionally, adverse events were also recorded. The follow-up period was 16 weeks.
Results:
The two groups exhibited similar baseline demographic and clinical characteristics. At baseline, the roxadustat group had a mean Hb level of 89.8 ± 18.9 g/L, while the ESAs group had a mean Hb level of 95.2 ± 16.0 g/L. By week 16, the Hb levels had increased to 118 ± 19.8 g/L (p < 0.05) in the roxadustat group and 101 ± 19.3 g/L (p > 0.05) in the ESAs group. The efficacy of roxadustat in improving anemia was not influenced by baseline levels of hs-CRP and iPTH. Cholesterol was decreased in the roxadustat group without statin use. An increase in left ventricular ejection fraction and stabilization of BNP were observed in the roxadustat group.
Conclusions
For PD patients with erythropoietin hyporesponsiveness, roxadustat can significantly improve renal anemia. The efficacy of roxadustat in improving renal anemia was not affected by baseline levels of hs-CRP0 and iPTH.
4.Performance of screening of contacts of COVID-19 cases in same flight.
Dan LI ; Ying QIN ; Si Meng FAN ; Zhi Bin PENG ; Hui GE ; Zhao Rui CHANG ; Rui ZHANG ; Xiao Kun YANG ; Hong Ting ZHAO ; Jian Dong ZHENG ; Shi Cheng YU ; Hui WANG ; Jun YAN ; Zhong Jie LI
Chinese Journal of Epidemiology 2023;44(5):713-719
Objective: To understand the performance of 2019-nCoV nucleic acid detection in screening of contacts of COVID-19 cases in same flights and provide evidence for the effective screening of persons at high risk for the infection in domestic flights. Methods: The information of passengers who took same domestic flights with COVID-19 cases in China from April 1, 2020 to April 30, 2022 were retrospectively collected,and χ2 test was used to analyze positive nucleic acid detection rates in the passengers in different times before the onsets of the index cases, in different seat rows and in epidemic periods of different 2019-nCoV variants. Results: During the study period, a total of 433 index cases were identified among 23 548 passengers in 370 flights. Subsequently, 72 positive cases of 2019-nCoV nucleic acid were detected in the passengers, in whom 57 were accompanying persons of the index cases. Further analysis of the another 15 passengers who tested positive for the nucleic acid showed that 86.67% of them had onsets or positive detections within 3 days after the diagnosis of the index cases, and the boarding times were all within 4 days before the onsets of the index cases. The positive detection rate in the passengers who seated in first three rows before and after the index cases was 0.15% (95%CI: 0.08%-0.27%), significantly higher than in the passengers in other rows (0.04%, 95%CI: 0.02%-0.10%, P=0.007),and there was no significant difference in the positive detection rate among the passengers in each of the 3 rows before and after the index cases (P=0.577). No significant differences were found in the positive detection rate in the passengers, except the accompanying persons, among the epidemics caused by different 2019-nCoV variants (P=0.565). During the Omicron epidemic period, all the positive detections in the passengers, except the accompanying persons, were within 3 days before the onset of the index cases. Conclusions: The screening test of 2019-nCoV nucleic acid can be conducted in the passengers took the same flights within 4 days before the onsets of the index cases on board. Passengers who seated within 3 rows from the index cases can considered as the close contacts at high risk for 2019-nCoV, for whom screening should be conducted first and special managements are needed. The passengers in other rows can be classified as general risk persons for screening and management.
Humans
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COVID-19
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Retrospective Studies
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SARS-CoV-2
;
China
;
Nucleic Acids
5.Progress in research of influenza vaccination in pregnant women.
Si Meng FAN ; Xiao Kun YANG ; Hong Ting ZHAO ; Ying QIN ; Jian Dong ZHENG ; Zhi Bin PENG ; Yan Ping ZHANG ; Zi Jian FENG
Chinese Journal of Epidemiology 2023;44(7):1157-1162
Influenza is an acute respiratory infectious disease caused by influenza virus. Pregnancy is associated with physiologic and immunological changes that may increase the risk for influenza virus infection and influenza-related complications. Influenza vaccination is the most effective way to prevent influenza virus infection. WHO and many countries have classified pregnant women as a priority population for influenza vaccination, however, there are still many challenges for promoting influenza vaccination in pregnant women in China, influenza vaccination coverage in pregnant women remains low and some influenza vaccine package inserts list pregnancy as an absolute contraindication. In this paper, we summarize the research progress in the effects of influenza infection and influenza vaccination during pregnancy both at home and abroad, then discuss the strategies to promote influenza vaccination in pregnancy for the purpose of providing reference for the related research and policy development in China.
Pregnancy
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Female
;
Humans
;
Pregnant Women
;
Influenza, Human/epidemiology*
;
Pregnancy Complications, Infectious/epidemiology*
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Influenza Vaccines
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Vaccination
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Orthomyxoviridae
6.Explore Potential Molecular Mechanism of Gegen Qinliantang in Intervention of Atherosclerosis Based on Network Pharmacology and Molecular Docking
Yi ZHENG ; He GUO ; Xi LUO ; Yan-jie WANG ; Dan-yu ZHAO ; Xiao-fan FENG ; Bao-kun LI ; Jing-yu WANG ; Lin ZHANG ; Yu-xi LIU ; Rui YU ; Xian-sheng MENG
Chinese Journal of Experimental Traditional Medical Formulae 2022;28(11):51-59
ObjectiveThis study aims to explore the potential molecular mechanism of Gegen Qinliantang (GQL) in the intervention of atherosclerosis (AS) based on network pharmacology and molecular docking. MethodThe active components and targets of each medicinal in GQL were retrieved from the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP), and AS-related genes from 7 databases. Thereby, the anti-AS targets of GQL were screened out. Cytoscape 3.8.0 was employed to construct the "component-target" network, and STRING the protein-protein interaction (PPI) network. Core targets were screened out with CytoNCA. R clusterProfiler was used for Gene Ontology (GO) term enrichment and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment of target genes, which were then visualized. Finally, molecular docking of the top ten active components with the core targets of AS was performed and the binding affinity was compared with that between atorvastatin and the core targets. ResultIn the end, 150 active components of GQL, 20 289 AS targets, and 213 common targets were retrieved, and 48 core common targets were screened out. They were mainly involved in the GO terms of nuclear receptor activity, ligand activation, and transcription factor activity and the pathways of fluid shear force and AS, advanced glycation end products-receptor for advanced glycation end products (AGE/RAGE), interleukin-17 (IL-17), tumor necrosis factor (TNF), Toll-like receptor pathways and other signaling pathways closely related to AS. The molecular docking results showed that the effective components of GQL had high binding affinity to core targets of AS, and the binding affinity was even higher than that between the atorvastatin and core targets. The five groups with high binding affinity were puerarin-TNF, baicalein-inducible nitric oxide synthase 2 (NOS2), puerarin-NOS2, and formononetin-NOS2, wogonin-NOS2. ConclusionThe above result provides new ideas for further exploration of this classical decoction.
7. Honokiol inhibits IL-1 induced angiogenesis in human lung cancer cell H460 through NF-kB signaling pathway
Xu-Dong CHENG ; Ting CHEN ; Meng UN ; Ting CHEN ; Liang TANG ; Xi-Kun SHEN ; Yu-Yu HUANG ; Ling FAN ; Dong-Wei YU
Chinese Pharmacological Bulletin 2022;38(3):380-386
Aim To investigate the effect of honokiol(HNK)on the angiogenesis of lung cancer cells H460 induced by the tumor inflammatory microenvironment and its possible mechanism.Methods CCK-8 was used to detect the effect of HNK on the proliferation of H460 cells and human umbilical vein endothelial cells(HUVECs); RT-PCR, Western blot, immunofluorescence were used to detect the expression of vascular endothelial growth factor(VEGF); Western blot was used to detect the signaling pathway protein p-IκBα, p-IKKα and NF-κB p65 protein expression.The wound healing test, transwell and tube formation tests were used to detect the inhibition ability of HNK on the migration and angiogenesis of HUVECs.Results HNK treated H460 cells for 24, 48, 72 h respectively, and inhibited the proliferation of H460 cells in a concentration-and time-dependent manner.HNK inhibited the survival of HUVEC cells in a concentration-dependent manner.HNK also reduced the protein and mRNA expression levels of VEGF in H460 cells.Subsequently, HNK concentration-dependently inhibited the phosphorylation of IκBα, NF-κB and IKKα in the NF-κB signaling pathway.Wound healing test, Transwell cell migration test and tube formation test showed that H460 conditioned medium treated with HNK had the ability to inhibit the migration and angiogenesis of HUVECs.Conclusions HNK reduces the viability and angiogenesis of human lung cancer cells by down-regulation of VEGF via the NF-κB pathway.
8.Development and research of compound caffeine waterless swallowed granules based on reverse engineering
Kun FAN ; Pei DING ; Xiao-lu HAN ; Zeng-ming WANG ; Meng LI ; Yan-zhou YU ; Ai-ping ZHENG
Acta Pharmaceutica Sinica 2022;57(8):2512-2519
In this study, the reverse engineering technology was used to analyze the prescription and process of Doppelherz® Energy DIRECT, based on the composition of the prescription on the official website of the product, the detection method of composition is established according to the pharmacopoeia and literature information, combined with gravimetric analysis to complete prescription analysis. The prescription composition of the reference listed drug was determined to be composed of caffeine, taurine, vitamin B, anhydrous glucose, citric acid, sorbitol, sucralose, magnesium salts of fatty acids, in which the glucose content was 71.4%, the citric acid content was 7.0% and the magnesium salts of fatty acids content was < 5.8%. According to patent inquiry, Raman imaging and other technologies, the preparation process of the marketed preparation has been basically obtained, and the development of the self-made preparation has been completed on this basis. The study was approved by the Ethics Committee of the Academy of Military Medical Sciences. Combined with the results of the taste evaluation experiment and the caffeine dissolution test of the preparation in 1 min, the hot-melt extrusion technology was screened out as the taste-masking technology of the self-made preparation, the parameters of the hot-melt extrusion process were screened by differential scanning calorimetry analysis, and finally a product with good taste and qualified quality was obtained, which provided a reference method for the research and development of related preparations.
9.Strategies and ideas of comprehensive development and utilization of medicine and food homologous variety Phyllanthus emblica.
Hao-Zhou HUANG ; Fei RAN ; Qing-Chu TAN ; Ding-Kun ZHANG ; Meng-Qi LI ; San-Hu FAN ; Peng TAN ; Jin PEI ; Li HAN ; Jun-Zhi LIN
China Journal of Chinese Materia Medica 2021;46(5):1034-1042
Phyllanthus emblica is a kind of traditional medicine and medicinal and edible plant, with rich variety resources and high development value. It is a key poverty alleviation variety in China at present. As P. emblica processing industry is rising gradually in recent years, in order to fully develop and utilize its industrial resources, this paper systematically introduces current comprehensive development and utilization of P. emblica, discusses the problems in P. emblica processing industry, and puts forward comprehensive development and utilization strategies and industrial models in terms of cultivation, breeding, grading, quality evaluation and waste recycling, so as to provide a certain reference for promoting the high-quality development of P. emblica industry in China.
China
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Medicine
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Medicine, Traditional
;
Phyllanthus emblica
;
Plant Breeding
;
Plant Extracts
10.Dynamic changes of cardiac structure and function in mice with abdominal aortic constriction.
Mao-Lin ZANG ; Meng-di YU ; Zhong-Hua CHEN ; Meng-Qi HUANG ; Peng LUO ; Hong-Kun FAN ; Chun YANG
Chinese Journal of Applied Physiology 2021;37(5):479-482
Animals
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Cardiomegaly
;
Constriction
;
Heart
;
Mice


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