1.Ablation of macrophage transcriptional factor FoxO1 protects against ischemia-reperfusion injury-induced acute kidney injury.
Yao HE ; Xue YANG ; Chenyu ZHANG ; Min DENG ; Bin TU ; Qian LIU ; Jiaying CAI ; Ying ZHANG ; Li SU ; Zhiwen YANG ; Hongfeng XU ; Zhongyuan ZHENG ; Qun MA ; Xi WANG ; Xuejun LI ; Linlin LI ; Long ZHANG ; Yongzhuo HUANG ; Lu TIE
Acta Pharmaceutica Sinica B 2025;15(6):3107-3124
Acute kidney injury (AKI) has high morbidity and mortality, but effective clinical drugs and management are lacking. Previous studies have suggested that macrophages play a crucial role in the inflammatory response to AKI and may serve as potential therapeutic targets. Emerging evidence has highlighted the importance of forkhead box protein O1 (FoxO1) in mediating macrophage activation and polarization in various diseases, but the specific mechanisms by which FoxO1 regulates macrophages during AKI remain unclear. The present study aimed to investigate the role of FoxO1 in macrophages in the pathogenesis of AKI. We observed a significant upregulation of FoxO1 in kidney macrophages following ischemia-reperfusion (I/R) injury. Additionally, our findings demonstrated that the administration of FoxO1 inhibitor AS1842856-encapsulated liposome (AS-Lipo), mainly acting on macrophages, effectively mitigated renal injury induced by I/R injury in mice. By generating myeloid-specific FoxO1-knockout mice, we further observed that the deficiency of FoxO1 in myeloid cells protected against I/R injury-induced AKI. Furthermore, our study provided evidence of FoxO1's pivotal role in macrophage chemotaxis, inflammation, and migration. Moreover, the impact of FoxO1 on the regulation of macrophage migration was mediated through RhoA guanine nucleotide exchange factor 1 (ARHGEF1), indicating that ARHGEF1 may serve as a potential intermediary between FoxO1 and the activity of the RhoA pathway. Consequently, our findings propose that FoxO1 plays a crucial role as a mediator and biomarker in the context of AKI. Targeting macrophage FoxO1 pharmacologically could potentially offer a promising therapeutic approach for AKI.
2.Chinese expert consensus on blood support mode and blood transfusion strategies for emergency treatment of severe trauma patients (version 2024)
Yao LU ; Yang LI ; Leiying ZHANG ; Hao TANG ; Huidan JING ; Yaoli WANG ; Xiangzhi JIA ; Li BA ; Maohong BIAN ; Dan CAI ; Hui CAI ; Xiaohong CAI ; Zhanshan ZHA ; Bingyu CHEN ; Daqing CHEN ; Feng CHEN ; Guoan CHEN ; Haiming CHEN ; Jing CHEN ; Min CHEN ; Qing CHEN ; Shu CHEN ; Xi CHEN ; Jinfeng CHENG ; Xiaoling CHU ; Hongwang CUI ; Xin CUI ; Zhen DA ; Ying DAI ; Surong DENG ; Weiqun DONG ; Weimin FAN ; Ke FENG ; Danhui FU ; Yongshui FU ; Qi FU ; Xuemei FU ; Jia GAN ; Xinyu GAN ; Wei GAO ; Huaizheng GONG ; Rong GUI ; Geng GUO ; Ning HAN ; Yiwen HAO ; Wubing HE ; Qiang HONG ; Ruiqin HOU ; Wei HOU ; Jie HU ; Peiyang HU ; Xi HU ; Xiaoyu HU ; Guangbin HUANG ; Jie HUANG ; Xiangyan HUANG ; Yuanshuai HUANG ; Shouyong HUN ; Xuebing JIANG ; Ping JIN ; Dong LAI ; Aiping LE ; Hongmei LI ; Bijuan LI ; Cuiying LI ; Daihong LI ; Haihong LI ; He LI ; Hui LI ; Jianping LI ; Ning LI ; Xiying LI ; Xiangmin LI ; Xiaofei LI ; Xiaojuan LI ; Zhiqiang LI ; Zhongjun LI ; Zunyan LI ; Huaqin LIANG ; Xiaohua LIANG ; Dongfa LIAO ; Qun LIAO ; Yan LIAO ; Jiajin LIN ; Chunxia LIU ; Fenghua LIU ; Peixian LIU ; Tiemei LIU ; Xiaoxin LIU ; Zhiwei LIU ; Zhongdi LIU ; Hua LU ; Jianfeng LUAN ; Jianjun LUO ; Qun LUO ; Dingfeng LYU ; Qi LYU ; Xianping LYU ; Aijun MA ; Liqiang MA ; Shuxuan MA ; Xainjun MA ; Xiaogang MA ; Xiaoli MA ; Guoqing MAO ; Shijie MU ; Shaolin NIE ; Shujuan OUYANG ; Xilin OUYANG ; Chunqiu PAN ; Jian PAN ; Xiaohua PAN ; Lei PENG ; Tao PENG ; Baohua QIAN ; Shu QIAO ; Li QIN ; Ying REN ; Zhaoqi REN ; Ruiming RONG ; Changshan SU ; Mingwei SUN ; Wenwu SUN ; Zhenwei SUN ; Haiping TANG ; Xiaofeng TANG ; Changjiu TANG ; Cuihua TAO ; Zhibin TIAN ; Juan WANG ; Baoyan WANG ; Chunyan WANG ; Gefei WANG ; Haiyan WANG ; Hongjie WANG ; Peng WANG ; Pengli WANG ; Qiushi WANG ; Xiaoning WANG ; Xinhua WANG ; Xuefeng WANG ; Yong WANG ; Yongjun WANG ; Yuanjie WANG ; Zhihua WANG ; Shaojun WEI ; Yaming WEI ; Jianbo WEN ; Jun WEN ; Jiang WU ; Jufeng WU ; Aijun XIA ; Fei XIA ; Rong XIA ; Jue XIE ; Yanchao XING ; Yan XIONG ; Feng XU ; Yongzhu XU ; Yongan XU ; Yonghe YAN ; Beizhan YAN ; Jiang YANG ; Jiangcun YANG ; Jun YANG ; Xinwen YANG ; Yongyi YANG ; Chunyan YAO ; Mingliang YE ; Changlin YIN ; Ming YIN ; Wen YIN ; Lianling YU ; Shuhong YU ; Zebo YU ; Yigang YU ; Anyong YU ; Hong YUAN ; Yi YUAN ; Chan ZHANG ; Jinjun ZHANG ; Jun ZHANG ; Kai ZHANG ; Leibing ZHANG ; Quan ZHANG ; Rongjiang ZHANG ; Sanming ZHANG ; Shengji ZHANG ; Shuo ZHANG ; Wei ZHANG ; Weidong ZHANG ; Xi ZHANG ; Xingwen ZHANG ; Guixi ZHANG ; Xiaojun ZHANG ; Guoqing ZHAO ; Jianpeng ZHAO ; Shuming ZHAO ; Beibei ZHENG ; Shangen ZHENG ; Huayou ZHOU ; Jicheng ZHOU ; Lihong ZHOU ; Mou ZHOU ; Xiaoyu ZHOU ; Xuelian ZHOU ; Yuan ZHOU ; Zheng ZHOU ; Zuhuang ZHOU ; Haiyan ZHU ; Peiyuan ZHU ; Changju ZHU ; Lili ZHU ; Zhengguo WANG ; Jianxin JIANG ; Deqing WANG ; Jiongcai LAN ; Quanli WANG ; Yang YU ; Lianyang ZHANG ; Aiqing WEN
Chinese Journal of Trauma 2024;40(10):865-881
Patients with severe trauma require an extremely timely treatment and transfusion plays an irreplaceable role in the emergency treatment of such patients. An increasing number of evidence-based medicinal evidences and clinical practices suggest that patients with severe traumatic bleeding benefit from early transfusion of low-titer group O whole blood or hemostatic resuscitation with red blood cells, plasma and platelet of a balanced ratio. However, the current domestic mode of blood supply cannot fully meet the requirements of timely and effective blood transfusion for emergency treatment of patients with severe trauma in clinical practice. In order to solve the key problems in blood supply and blood transfusion strategies for emergency treatment of severe trauma, Branch of Clinical Transfusion Medicine of Chinese Medical Association, Group for Trauma Emergency Care and Multiple Injuries of Trauma Branch of Chinese Medical Association, Young Scholar Group of Disaster Medicine Branch of Chinese Medical Association organized domestic experts of blood transfusion medicine and trauma treatment to jointly formulate Chinese expert consensus on blood support mode and blood transfusion strategies for emergency treatment of severe trauma patients ( version 2024). Based on the evidence-based medical evidence and Delphi method of expert consultation and voting, 10 recommendations were put forward from two aspects of blood support mode and transfusion strategies, aiming to provide a reference for transfusion resuscitation in the emergency treatment of severe trauma and further improve the success rate of treatment of patients with severe trauma.
3.Effectiveness and safety of adjunctive non-drug measures in improving respiratory symptoms among patients with severe COVID-19: A multicenter randomized controlled trial.
Xuan YIN ; Zhu JIN ; Feng LI ; Li HUANG ; Yan-Mei HU ; Bo-Chang ZHU ; Zu-Qing WANG ; Xi-Ying LI ; Jian-Ping LI ; Lixing LAO ; Yi-Qun MI ; Shi-Fen XU
Journal of Integrative Medicine 2024;22(6):637-644
BACKGROUND:
The outbreak of coronavirus disease 2019 (COVID-19) infection posed a huge threat and burden to public healthcare in late 2022. Non-drug measures of traditional Chinese medicine (TCM), such as acupuncture, cupping and moxibustion, are commonly used as adjuncts in China to help in severe cases, but their effects remain unclear.
OBJECTIVES:
To observe the clinical effect of TCM non-drug measures in improving respiratory function and symptoms among patients with severe COVID-19.
DESIGN, SETTING, PARTICIPANTS AND INTERVENTIONS:
This study was designed as a multicenter, assessor-blind, randomized controlled trial. Hospitalized patients with COVID-19 were randomly assigned to the treatment or control group. The treatment group received individualized TCM non-drug measures in combination with prone position ventilation, while the control group received prone position ventilation only for 5 consecutive days.
MAIN OUTCOME MEASURES:
The primary outcome measures were the percentage of patients with improved oxygen saturation (SpO2) at the end of the 5-day intervention, as well as changes of patients' respiratory rates. The secondary outcome measures included changes in SpO2 and total score on the self-made respiratory symptom scale. The improvement rate, defined as a 3-day consecutive increase in SpO2, the duration of prone positioning, and adverse events were recorded as well.
RESULTS:
Among the 198 patients included in the intention-to-treat analysis, 159 (80.3%) completed all assessments on day 5, and 39 (19.7%) patients withdrew from the study. At the end of the intervention, 71 (91%) patients in the treatment group had SpO2 above 93%, while 61 (75.3%) in the control group reached this level. The proportion of participant with improved SpO2 was significantly greater in the intervention group (mean difference [MD] = 15.7; 95% confidence interval [CI]: 4.4, 27.1; P = 0.008). Compared to the baseline, with daily treatment there were significant daily decreases in respiratory rates in both groups, but no statistical differences between groups were found (all P ≥ 0.05). Compared to the control group, the respiratory-related symptoms score was lower among patients in the treatment group (MD = -1.7; 95% CI: -2.8, -0.5; P = 0.008) after day 3 of treatment. A gradual decrease in the total scores of both groups was also observed. Thirty-one adverse events occurred during the intervention, and 2 patients were transferred to the intensive care unit due to deterioration of their illness.
CONCLUSION:
TCM non-drug measures combined with prone positioning can effectively treat patients with severe COVID-19. The combined therapy significantly increased SpO2 and improved symptom scores compared to prone positioning alone, thus improving the patients' respiratory function to help them recover. However, the improvement rate did not differ between the two groups.
TRIAL REGISTRATION
Chinese Clinical Trial Registry (ChiCTR2300068319). Please cite this article as: Yin X, Jin Z, Li F, Huang L, Hu YM, Zhu BC, Wang ZQ, Li XY, Li JP, Lao LX, Mi YQ, Xu SF. Effectiveness and safety of adjunctive non-drug measures in improving respiratory symptoms among patients with severe COVID-19: A multicenter randomized controlled trial. J Integr Med. 2024; 22(6): 637-644.
Adult
;
Aged
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Female
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Humans
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Male
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Middle Aged
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Acupuncture Therapy/methods*
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China
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COVID-19/complications*
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Medicine, Chinese Traditional/methods*
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Moxibustion/methods*
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Oxygen Saturation
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Prone Position
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Respiration, Artificial
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Treatment Outcome
4.Diagnostic efficacy of prostate cancer using targeted biopsy with 6-core systematic biopsy for patients with PI-RADS 5.
Yi LIU ; Chang Wei YUAN ; Jing Yun WU ; Qi SHEN ; Jiang Xi XIAO ; Zheng ZHAO ; Xiao Ying WANG ; Xue Song LI ; Zhi Song HE ; Li Qun ZHOU
Journal of Peking University(Health Sciences) 2023;55(5):812-817
OBJECTIVE:
To investigate the diagnostic efficacy of targeted biopsy (TBx), systematic biopsy (SBx), TBx+6-core SBx in prostate cancer (PCa) / clinically significant prostate cancer (cs-PCa) for patients with prostate imaging reporting and data system (PI-RADS) score of 5, and thereby to explore an optimal sampling scheme.
METHODS:
The data of 585 patients who underwent multiparametric magnetic resonance imaging (mpMRI) with at least one lesion of PI-RADS score 5 at Peking University First Hospital from January 2019 to June 2022 were retrospectively analyzed. All patients underwent mpMRI / transrectal ultrasound (TRUS) cognitive guided biopsy (TBx+SBx). With the pathological results of combined biopsy as the gold standard, we compared the diagnostic efficacy of TBx only, SBx only, and TBx+6-core SBx for PCa/csPCa. The patients were grouped according to mpMRI T-stage (cT2, cT3, cT4) and the detection rates of different biopsy schemes for PCa/csPCa were compared using Cochran's Q and McNemar tests.
RESULTS:
Among 585 patients with a PI-RADS score of 5, 560 (95.7%) were positive and 25(4.3%) were negative via TBx+SBx. After stratified according to mpMRI T-stage, 233 patients (39.8%) were found in cT2 stage, 214 patients (36.6%) in cT3 stage, and 138 patients (23.6%) in cT4 stage. There was no statistically significant difference in the detection rate of PCa/csPCa between TBx+6-core SBx and TBx+SBx (all P>0.999). Also, there was no statistically significant difference in the detection rate of PCa/csPCa between TBx and TBx+SBx in the cT2, cT3, and cT4 subgroups (PCa: P=0.203, P=0.250, P>0.999; csPCa: P=0.700, P=0.250, P>0.999). The missed diagnosis rate of SBx for PCa and csPCa was 2.1% (12/560) and 1.8% (10/549), and that of TBx for PCa and csPCa was 1.8% (10/560) and 1.4% (8/549), respectively. However, the detection rate of TBx+6-core SBx for PCa and csPCa was 100%. Compared with TBx+SBx, TBx and TBx+6-core SBx had a fewer number of cores and a higher detection rate per core (P < 0.001).
CONCLUSION
For patients with a PI-RADS score of 5, TBx and TBx+6-core SBx showed the same PCa/csPCa detection rates and a high detection rates per core as that of TBx+SBx, which can be considered as an optimal scheme for prostate biopsy.
Male
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Humans
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Prostatic Neoplasms/pathology*
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Magnetic Resonance Imaging/methods*
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Retrospective Studies
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Prostate/diagnostic imaging*
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Image-Guided Biopsy/methods*
5.Family-based association tests for rare variants.
Xi CHEN ; Si Yue WANG ; En Ci XUE ; Xue Heng WANG ; He Xiang PENG ; Meng FAN ; Meng Ying WANG ; Yi Qun WU ; Xue Ying QIN ; Jin LI ; Tao WU ; Hong Ping ZHU ; Jing LI ; Zhi Bo ZHOU ; Da Fang CHEN ; Yonghua HU
Chinese Journal of Epidemiology 2022;43(9):1497-1502
Next-generation sequencing has revolutionized family-based association tests for rare variants. As the lower power of genome wide association study for detecting casual rare variants, methods aggregating effects of multiple variants have been proposed, such as burden tests and variance component tests. This paper summarizes the methods of rare variants association test that can be applied for family data, introduces their principles, characteristics and applicable conditions and discusses the shortcomings and the improvement of the present methods.
Computer Simulation
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Family Relations
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Genetic Association Studies
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Genetic Variation
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Genome-Wide Association Study/methods*
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Humans
6.Exploring the association between de novo mutations and non-syndromic cleft lip with or without palate based on whole exome sequencing of case-parent trios.
Xi CHEN ; Si Yue WANG ; En Ci XUE ; Xue Heng WANG ; He Xiang PENG ; Meng FAN ; Meng Ying WANG ; Yi Qun WU ; Xue Ying QIN ; Jing LI ; Tao WU ; Hong Ping ZHU ; Jing LI ; Zhi Bo ZHOU ; Da Fang CHEN ; Yong Hua HU
Journal of Peking University(Health Sciences) 2022;54(3):387-393
OBJECTIVE:
To explore the association between de novo mutations (DNM) and non-syndromic cleft lip with or without palate (NSCL/P) using case-parent trio design.
METHODS:
Whole-exome sequencing was conducted for twenty-two NSCL/P trios and Genome Analysis ToolKit (GATK) was used to identify DNM by comparing the alleles of the cases and their parents. Information of predictable functions was annotated to the locus with SnpEff. Enrichment analysis for DNM was conducted to test the difference between the actual number and the expected number of DNM, and to explore whether there were genes with more DNM than expected. NSCL/P-related genes indicated by previous studies with solid evidence were selected by literature reviewing. Protein-protein interactions analysis was conducted among the genes with protein-altering DNM and NSCL/P-related genes. R package "denovolyzeR" was used for the enrichment analysis (Bonferroni correction: P=0.05/n, n is the number of genes in the whole genome range). Protein-protein interactions among genes with DNM and genes with solid evidence on the risk factors of NSCL/P were predicted depending on the information provided by STRING database.
RESULTS:
A total of 339 908 SNPs were qualified for the subsequent analysis after quality control. The number of high confident DNM identified by GATK was 345. Among those DNM, forty-four DNM were missense mutations, one DNM was nonsense mutation, two DNM were splicing site mutations, twenty DNM were synonymous mutations and others were located in intron or intergenic regions. The results of enrichment analysis showed that the number of protein-altering DNM on the exome regions was larger than expected (P < 0.05), and five genes (KRTCAP2, HMCN2, ANKRD36C, ADGRL2 and DIPK2A) had more DNM than expected (P < 0.05/(2×19 618)). Protein-protein interaction analysis was conducted among forty-six genes with protein-altering DNM and thirteen genes associated with NSCL/P selected by literature reviewing. Six pairs of interactions occurred between the genes with DNM and known NSCL/P-related genes. The score measuring the confidence level of the predicted interaction between RGPD4 and SUMO1 was 0.868, which was higher than the scores for other pairs of genes.
CONCLUSION
Our study provided novel insights into the development of NSCL/P and demonstrated that functional analyses of genes carrying DNM were warranted to understand the genetic architecture of complex diseases.
Asians
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Case-Control Studies
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Cleft Lip/genetics*
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Cleft Palate/genetics*
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Genetic Predisposition to Disease
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Genome-Wide Association Study
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Genotype
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Humans
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Mutation
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Parents
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Polymorphism, Single Nucleotide
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Whole Exome Sequencing
7.Baicalein Regulates Colony Formation of Triple-negative Breast Cancer Cells by Inhibiting YAP Entry into Nucleus
Ying-xiang LIU ; Li-hui WANG ; Xiao-hui LI ; Xi-sheng WEI ; Yu-qun TANG ; Xiao-jun ZHENG
Chinese Journal of Experimental Traditional Medical Formulae 2021;27(4):70-75
Objective:This study aims to observe the effect of baicalein on the clonal formation of triple negative breast cancer MDA-MB-231 and MDA-MB-468 cells, and to explore the mediation role of Yes- related protein (YAP) in it. Method:MDA-MB-231 and MDA-MB-468 cells were treated with baicalein. Thiazole blue (MTT) colorimetric method was used to detect cell proliferation ability. Plate cloning experiments was used to detect the colony forming ability. Immunofluorescence method was used to detect the nuclear distribution of YAP, and Western blot test was used to detect the protein expression levels of YAP large tumor suppressor factor 1 (LATS1), YAP, phosphorylated Yes- related protein(p-YAP) and phosphorylated YAP large tumor suppressor factor 1 (p-LATS1). Result:Compared with the blank group, baicalein (40, 80, 160 μmol·L-1) significantly inhibited the proliferation ability of MDA-MB-468 and MDA-MB-231 cells (
8.Effect of Astragalus injection on cardiomyocyte apoptosis, endoplasmic reticulum stress and expression of connexin in cardiomyopathy rats induced by adriamycin.
Zhi-Hui HE ; Li-Qun SHAO ; Li-Ying XUAN ; Chun-Gui WANG ; Cheng-Xi WEI ; Yu WANG ; Ming ZHAO
Chinese Journal of Applied Physiology 2018;34(2):159-163
OBJECTIVES:
To investigate the effect of Astragalus injection on cardiomyocyte apoptosis, endoplasmic reticulum stress and connexin protein in cardiomyopathy rats induced by adriamycin.
METHODS:
Thirty-six male Wister rats were randomly divided into control group (=12), adriamycin(ADR) group (=12) and Astragalus group (=12). The normal saline (10 ml/kg body weight) was injected intraperitoneally in control group rats, ADR (2 mg/kg body weight) was injected intraperitoneally in ADR group rats, ADR (10 ml/kg body weight) and Astragalus injection (10 ml/kg body weight) were injected intraperitoneally in rats of astragalus group, one time a week, totle 3 times. By the end of the 7 week, the left ventricular end-diastolic diameter(LVEDD), left ventricular end-systolic diameter (LVESD) and left ventricular ejection fraction (LVEF) were measured by echocardiography. Then the rats in the three groups were sacrificed and the left ventricle section was stained by HE, Masson, uranyl acetate/lead citrate respectively, the cardiomyopathy and ultrastructural changes were observed under light microscope and transmission electron microscope. The apoptosis of rat cardiomyocyte were analyzed by TUNEL. The expression of connexin Cx43 and p-Cx43 was detected by immunohistochemistry. The expression of glucose-regulated protein 78 (Grp78),activating transcription factor 4 (ATF-4) and C/EBP homologous protein (CHOP) were detected by real time PCR.
RESULTS:
Compared with control group, LVEDD, LVESD increased and LVEF decreased, myocardial fibers were disordered and edematous, infiltrated by lymphocytes, the mitochondria were destroyed and vacuolized, and the number of cardiomyocyte apoptosis was increased(<0.01) in ADR group. The expression of Grp78, ATF-4, CHOP and p-Cx43 were increased, and the expression of Cx43 was decreased in ADR group. However, compared with ADR group, LVEDD, LVESD decreased and LVEF increased, the cardiomyopathy and ultrastructural changes were significantly improved, the number of cardiomyocyte apoptosis was significantly decreased (<0. 01); the expression of Grp78, ATF-4, CHOP and p-Cx43 decreased (<0.01); the expression of Cx43 increased in Astragalus group (<0.01).
CONCLUSIONS
Astragalus injection may effectively improve the myocardial damage induced by adriamycin, its mechanism may be related to the inhibition of endoplasmic reticulum stress (ERS) and the decrease of phosphorylation of CX43 in cardiomyopathy rats induced by adriamycin.
Animals
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Apoptosis
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Astragalus Plant
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chemistry
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Cardiomyopathies
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chemically induced
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drug therapy
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Doxorubicin
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adverse effects
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Drugs, Chinese Herbal
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pharmacology
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Endoplasmic Reticulum Stress
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drug effects
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Male
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Myocytes, Cardiac
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cytology
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drug effects
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Random Allocation
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Rats
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Rats, Wistar
9.Measurement Uncertainty Assessment for Determination of Allura Red in Puffed Food by HPLC
Ying CHEN ; Yun ZHAO ; Hua-Ming WANG ; Qing WANG ; Xi CHEN ; Dong-Qun XU ; Tao LI ; Feng YU ; Xiao-Yong WANG ; Jia-Fa LIU
Journal of Huazhong University of Science and Technology (Medical Sciences) 2018;38(2):324-328
This study aimed to assess the measurement uncertainty of a new method for determination of allura redin food by high performance liquid chromatography (HPLC).The uncertainty of mathematical model of allura red is based on Europe for Analytical Chemistry(EURACHEM) guidelines.The sources and components of uncertainty were calculated,including recovery,working solution,sample mass,final volume,response of standard solution,response of sample solution.The expanded uncertainty was 0.0024 (k=2).Uncertainty of working solution was the most significant factor contributing to the total uncertainty,accounting for 86.2%.The uncertainty of volume accounted for the minimum at 0.025%.The developed method is simple and accurate,which can be used for the determination of allura redin puffed samples.
10.Protocol of dialysis-type processing on frozen platelets
Hui CAO ; yang Xiao YI ; xia Min LIU ; yun Jian WANG ; xi Jie WANG ; Qun LUO ; Ying HAN
Military Medical Sciences 2017;41(9):723-726
Objective To establish a new dialysis washing method for human frozen platelets and to evaluate a new type of washing machine based on dialysis.Methods Twenty bags of platelets(1U)were divided into two groups:centrifugation group and dialysis group.The effect of the washing machine was evaluated by measuring platelet function in vitro.Results After the platelets were treated by the two methods, the recovery rate of dialysis group[(73.57 ± 12.49)%]was significantly better than that of centrifugal group[(62.21 ±7.07)%].The osmotic pressure of dialysis group was 305.8 ±5.27mOsm/kg, compared to 383.2 ±22.00 mOsm/kg in centrifugation group.There was significant differences in the recovery rate and osmotic pressure(P<0.05), but there was no significant difference between dialysis group and centrifugation group in the mean platelet volume[(9.44 ±0.93)vs(9.23 ±0.50)fl], ADP-induced aggregation rate[(20.7 ±8.00)%vs(27.7 ±11.83)%],thrombin-induced platelet aggregation rate[(84.1 ±7.88)%vs(92.9 ±5.28)%], hypotonic shock responses[(19.02 ±4.42)% vs(23.19 ±9.08)%], CD62p activation rate [(16.00 ±9.40)%vs(21.86 ±8.14)%]or apoptosis rate[(46.31 ±10.28)% vs(54.59 ±16.76)%](P>0.05). Conclusion Compared to centrifugation group,the frozen platelet washing machine can not only improve platelet recovery,but also solve the problem of excessive DMSO residues.

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