101
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Dai Y, Li J. Comparative proteomic analysis of acetylation profiles in esophageal squamous carcinoma cells. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy301.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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102
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You Z, Ran X, Dai Y, Ran Y. Clioquinol, an alternative antimicrobial agent against common pathogenic microbe. J Mycol Med 2018; 28:492-501. [DOI: 10.1016/j.mycmed.2018.03.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 03/17/2018] [Accepted: 03/18/2018] [Indexed: 12/11/2022]
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103
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Dai Y, Chang S, Li C, Lu H, Ge J. P6404The myocardial salvaging effect of coronary collaterals in chronic total occlusions and its association with expression of vascular endothelial growth factor A. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Y Dai
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital-Fudan Univerisity, Shanghai, China People's Republic of
| | - S Chang
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital-Fudan Univerisity, Shanghai, China People's Republic of
| | - C Li
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital-Fudan Univerisity, Shanghai, China People's Republic of
| | - H Lu
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital-Fudan Univerisity, Shanghai, China People's Republic of
| | - J Ge
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital-Fudan Univerisity, Shanghai, China People's Republic of
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Chen K, Dai Y, Li Y, Luo B, Sun Q, Li C, Zhang S. P6652Comparison of electrocardiogram characteristics between left bundle branch pacing and right ventricular septal pacing in patients receiving pacemaker therapy. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6652] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- K Chen
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Arrhythmia Center, Beijing, China People's Republic of
| | - Y Dai
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Arrhythmia Center, Beijing, China People's Republic of
| | - Y Li
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Arrhythmia Center, Beijing, China People's Republic of
| | - B Luo
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Arrhythmia Center, Beijing, China People's Republic of
| | - Q Sun
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Arrhythmia Center, Beijing, China People's Republic of
| | - C Li
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Arrhythmia Center, Beijing, China People's Republic of
| | - S Zhang
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Arrhythmia Center, Beijing, China People's Republic of
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Tang H, Jiang Z, He H, Li X, Hu H, Zhang N, Dai Y, Zhou Z. Uptake and transport of pullulan acetate nanoparticles in the BeWo b30 placental barrier cell model. Int J Nanomedicine 2018; 13:4073-4082. [PMID: 30034233 PMCID: PMC6047610 DOI: 10.2147/ijn.s161319] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
INTRODUCTION Nanomedicine has shown a great potential in perinatal medicine because of its characteristics of sustained, controlled release and targeting ability; on the other hand, it may also lead to unexpected toxicities such as embryotoxicity and even malformation after crossing the placental barrier, but data concerning transplacental transport are scarce. Pullulan acetate (PA) nanoparticles (NPs) are a promising nanocarrier derived from natural polysaccharide; however, their transplacental transport ability and mechanism are unknown. MATERIALS AND METHODS In this study, fluorescein isothiocyanate (FITC) conjugated PA (PA-FITC) was synthesized. PA-FITC NPs were characterized by dynamic light scattering, transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The cytotoxicity of PA-FITC NPs at concentrations of 15, 30, 60, 125, 250, 500, 1,000 and 2,000 μg/mL was studied by cell counting kit-8. The human chorionic gonadotrophin (HCG) cytokine assay was conducted to evaluate the biological function of BeWo b30 cells. Endocytic mechanisms of PA-FITC NPs were investigated via fluorescence analysis. The monolayer properties were characterized by TEM, tight junction staining, transepithelial electrical resistance and fluorescein sodium transportation. The transport ability was measured in the cell based transwell model by confocal imaging and SEM. RESULTS PA-FITC NPs were almost spherical shape with a size range of 200-300 nm. Cell viability of BeWo b30 cells was up to 100% in all groups. The concentrations of HCG increased with increasing numbers of cells and culture time, which showed the good biological function of BeWo b30 cells. PA-FITC NPs were rapidly endocytosed through caveolae-mediated endocytosis and pinocytosis, with uptake inhibition rates with nystatin (NY) and colchicines (Col) of 55% and 51% respectively. BeWo b30 cell monolayer was formed over 5 days. PA-FITC NPs were found in the cytoplasm of cells on the transwell membranes; while some NPs were found in the basolateral (fetal) compartment over 24 h. CONCLUSION In summary, PA-FITC NPs are nontoxic, can cross the blood-placental barrier, and show mainly internalization to BeWo b30 cells through caveolae-mediated endocytosis and pinocytosis pathways, major via the former pathway. The results could benefit the adjustment and control of the transplacental transport of nanomedicines.
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Affiliation(s)
- Hongbo Tang
- Department of Pharmacy, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100006, People's Republic of China
| | - Ziwen Jiang
- Department of Gynecology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100006, People's Republic of China,
| | - Haibo He
- College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang 443002, People's Republic of China
| | - Xiaoqin Li
- College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang 443002, People's Republic of China
| | - Haipeng Hu
- Department of Pharmacy, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100006, People's Republic of China
| | - Ning Zhang
- Department of Pharmacy, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100006, People's Republic of China
| | - Yinmei Dai
- Department of Gynecology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100006, People's Republic of China,
| | - Zhimin Zhou
- Biomedical Barriers Research Center, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin Key Laboratory of Biomedical Materials, Tianjin, 300192, People's Republic of China,
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Chen J, Chen Y, Chen T, Gao Q, Dai Y, Yao Z, Lu Q. 308 Brain structural network topological alterations of the left prefrontal and limbic cortex in psychogenic erectile dysfunction. J Sex Med 2018. [DOI: 10.1016/j.jsxm.2018.04.271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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107
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Chen J, Chen Y, Chen T, Gao Q, Dai Y, Yao Z, Lu Q. 304 Disrupted rich club and robustness of brain network in erectile dysfunction patients owing predominantly to psychological factors a structural and functional neuroimaging study. J Sex Med 2018. [DOI: 10.1016/j.jsxm.2018.04.267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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108
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Chen J, Chen Y, Chen T, Gao Q, Dai Y, Yao Z, Lu Q. 307 Impaired prefrontal-amygdala pathway, self-reported emotion and erection in psychogenic erectile dysfunction patients with normal nocturnal erection. J Sex Med 2018. [DOI: 10.1016/j.jsxm.2018.04.270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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109
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Chen J, Chen Y, Chen T, Gao Q, Dai Y, Yao Z, Lu Q. 303 Altered brain networks in psychogenic erectile dysfunction a resting-state fMRI study. J Sex Med 2018. [DOI: 10.1016/j.jsxm.2018.04.266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Abstract
Systemic lupus erythematosus (SLE) is a type of autoimmune disease that damages multiple organs, including the heart, joints, liver and kidneys. The main characteristics of SLE are the deposition of circulating autoantibodies; autoantigen complexes in the renal system; and abnormal expression of complements, cytokines and chemokines. Lupus nephritis (LN) is the most serious manifestation of SLE and is characterized by inflammation of the kidney. This review summarizes recent clinical applications of protein biomarkers including autoantibodies, complements, cytokines and chemokines and some new protein biomarkers in SLE and LN. The clinical differential diagnosis of protein biomarkers related to prognosis and diagnosis is discussed and highlighted. Protein biomarkers play crucial roles in the study of SLE and LN. Useful biomarkers will provide insights into effective treatments for these diseases.
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Affiliation(s)
- S Qi
- 1 National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, Department of Biomedical Engineering, School of Medicine, Shenzhen University, Shenzhen, China
| | - Q Chen
- 1 National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, Department of Biomedical Engineering, School of Medicine, Shenzhen University, Shenzhen, China
| | - D Xu
- 1 National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, Department of Biomedical Engineering, School of Medicine, Shenzhen University, Shenzhen, China
| | - N Xie
- 1 National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, Department of Biomedical Engineering, School of Medicine, Shenzhen University, Shenzhen, China
| | - Y Dai
- 2 Shenzhen People's Hospital, Shenzhen, China
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Tang S, Dai Y. RNA sequencing reveals significant miRNAs in Atypical endometrial hyperplasia. Eur J Obstet Gynecol Reprod Biol 2018; 225:129-135. [PMID: 29709726 DOI: 10.1016/j.ejogrb.2018.03.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 03/16/2018] [Accepted: 03/17/2018] [Indexed: 12/29/2022]
Abstract
PURPOSE In this paper, we aimed to investigate the miRNAs that played a regulatory role in the development of atypical endometrial hyperplasia (AEH). METHODS RNA sequencing was performed for endometrial tissues from 3 AEH patients and 3 endometrial normal hyperplasia patients. RNA sequencing data were processed and differentially expressed (DE) miRNAs were identified between AEH and controls. The target genes for DE miRNAs were identified and mapped to the protein-protein interaction (PPI) network. The miRNA related functions were predicted and miRNA-disease gene network was constructed. RESULTS Total 18 DE miRNAs were overlapped in three sample groups, among which hsa-miR-577, hsa-miR-182-5p and hsa-miR-183-5p were top three miRNAs that targeting largest number of genes. Function analysis showed that the 18 overlapped miRNAs mainly related with cancer and signaling transduction related pathways. PPI network showed that total 12 genes were among top 20 genes based on three network topological features including BCL2, UMPS, MAPK13, PRKCB, CREB1, IGF1, SP1, SMAD3, IGF1R, NOTCH2, WNT5A, TK2. Top 10 miRNAs in miRNA-disease gene network were identified such as hsa-miR-577 (degree = 17), hsa-miR-182-5p (degree = 16) and hsa-miR-3609 (degree = 13). CONCLUSION hsa-miR-577 and hsa-miR-182-5p may play regulatory role in AEH through AMPK signal pathway and Wnt signaling pathway.
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Affiliation(s)
- Shiqian Tang
- Department of Gynecology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, 100026, China
| | - Yinmei Dai
- Department of Gynecology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, 100026, China.
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112
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Deng R, Dai Y, Zhang H, Liu L, Li J, Xiong Y, Deng S, Fu Q, Wang C. Higher Incidence of Renal Allograft Glomerulonephritis in Living-Related Donor Kidney Transplantation. Transplant Proc 2018; 50:2421-2425. [PMID: 30316370 DOI: 10.1016/j.transproceed.2018.03.050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Accepted: 03/06/2018] [Indexed: 12/17/2022]
Abstract
Glomerulonephritis recurrence has emerged as one of the leading causes of allograft loss. We aimed to investigate the effect of living-related and deceased donation on the incidence of renal allograft glomerulonephritis and its effect on renal allograft survival. METHODS Adult renal allograft recipients with primary glomerulonephritis were enrolled. Transplantation date was from Feb 2004 to Dec 2015. Exclusion criteria included combined organ transplantation, structural abnormality, diabetic nephropathy, hypertension nephropathy, obstructive nephropathy, and primary uric acid nephropathy. The incidence of biopsy-proven allograft glomerulonephritis was compared between the living-related donor group and the deceased donor group. Graft survival was assessed with Kaplan-Meier method, and Cox proportional hazard model was used to evaluate the effect of posttransplant glomerulonephritis on graft outcome. RESULTS There were 525 living-related donor kidney transplant recipients (LRKTx) and 456 deceased donor kidney transplant recipients (DDKTx) enrolled. The incidence of IgA nephropathy was 8.8% in the LRKTx group and 1.3% in the DDKTx group (P < .001); the incidence of focal segmental glomerulosclerosis (FSGS) was 3.8% in the LRKTx group and 1.5% in the DDKTx group (P = .03). FSGS increased the risk of graft failure compared with non-FSGS (hazard ratio [HR], 3.703 [1.459-9.397]; P = .006). IgA nephropathy increased the risk of graft failure by over 5 times 5 years after kidney transplantation compared with non-IgA nephropathy, but it did not affect early allograft survival (HR for ≥5 years, 6.139; 95% CI, 1.766-21.345; P = .004; HR for <5 years, 0.385 [0.053-2.814]; P = .35). CONCLUSIONS Higher incidence of IgA nephropathy and FSGS in renal allograft was observed in living-related donor kidney transplantation compared with deceased donor kidney transplantation. De novo or recurrent IgA nephropathy and FSGS impaired long-term renal allograft survival.
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Affiliation(s)
- R Deng
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Y Dai
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - H Zhang
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - L Liu
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - J Li
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Y Xiong
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - S Deng
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Q Fu
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
| | - C Wang
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory on Organ Donation and Transplant Immunology, Guangzhou, China.
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113
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Deng H, Dai Y, Lu H, Li SS, Gao L, Zhu DL. Analysis of the correlation between non-alcoholic fatty liver disease and bone metabolism indicators in healthy middle-aged men. Eur Rev Med Pharmacol Sci 2018; 22:1457-1462. [PMID: 29565507 DOI: 10.26355/eurrev_201803_14493] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To investigate the relationship between bone metabolic indicators and non-alcoholic fatty liver disease (NAFLD) in healthy middle-aged men. PATIENTS AND METHODS The bone metabolic indicators of 232 healthy middle-age men with NAFLD (NAFLD group) and 308 healthy controls without fatty liver (Control group) were measured, including non-collagenous osteocalcin, the procollagen type 1 N-terminal propeptide (P1NP), beta-C-terminal telopeptide of type I collagen (β-CTX). The Student's t-test was used to analyze the differences in the bone metabolic indicators, age, clinical data, biochemical indicators, and the indicators of glucose and lipid metabolism between the two groups. The correlation of fatty liver-related indicators was detected using the logistic regression analysis. RESULTS The body mass index (BMI), diastolic blood pressure, and heart rate in NAFLD group were significantly higher than those in Control group. Among the indicators of glucose and lipid metabolism in NAFLD group, the levels of blood glucose [fasting plasma glucose, postprandial blood glucose and hemoglobin A1c (HbA1c)] were significantly higher than those in Control group. In addition, the insulin resistance and secretion indexes were also significantly higher than those in Control group. The levels of lipid metabolic indicators such as triglyceride were higher, but high-density lipoprotein cholesterol was lower than that in Control group. From logistic regression analysis, the BMI, Homeostasis model assessment (HOMA)-β, HOMA-IR, HbA1c and P1NP were positively associated with the occurrence of NAFLD. CONCLUSIONS The bone metabolic indicator P1NP might be a potential predicator for the diagnosis of NAFLD in clinical application.
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Affiliation(s)
- H Deng
- Department of Geriatrics, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing, China.
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Zhang P, Bousack H, Dai Y, Offenhäusser A, Mayer D. Shell-binary nanoparticle materials with variable electrical and electro-mechanical properties. Nanoscale 2018; 10:992-1003. [PMID: 29265122 DOI: 10.1039/c7nr07912e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Nanoparticle (NP) materials with the capability to adjust their electrical and electro-mechanical properties facilitate applications in strain sensing technology. Traditional NP materials based on single component NPs lack a systematic and effective means of tuning their electrical and electro-mechanical properties. Here, we report on a new type of shell-binary NP material fabricated by self-assembly with either homogeneous or heterogeneous arrangements of NPs. Variable electrical and electro-mechanical properties were obtained for both materials. We show that the electrical and electro-mechanical properties of these shell-binary NP materials are highly tunable and strongly affected by the NP species as well as their corresponding volume fraction ratio. The conductivity and the gauge factor of these shell-binary NP materials can be altered by about five and two orders of magnitude, respectively. These shell-binary NP materials with different arrangements of NPs also demonstrate different volume fraction dependent electro-mechanical properties. The shell-binary NP materials with a heterogeneous arrangement of NPs exhibit a peaking of the sensitivity at medium mixing ratios, which arises from the aggregation induced local strain enhancement. Studies on the electron transport regimes and micro-morphologies of these shell-binary NP materials revealed the different mechanisms accounting for the variable electrical and electro-mechanical properties. A model based on effective medium theory is used to describe the electrical and electro-mechanical properties of such shell-binary nanomaterials and shows an excellent match with experiment data. These shell-binary NP materials possess great potential applications in high-performance strain sensing technology due to their variable electrical and electro-mechanical properties.
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Affiliation(s)
- P Zhang
- Institute of Complex Systems, Bioelectronics (ICS-8) and JARA - Fundamentals of Future Information Technology, Forschungszentrum Jülich, 52425 Jülich, Germany.
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115
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Li H, Hu B, Wei L, Zhou L, Zhang L, Lin Y, Qin B, Dai Y, Lu Z. Non-alcoholic fatty liver disease is associated with stroke severity and progression of brainstem infarctions. Eur J Neurol 2018; 25:577-e34. [PMID: 29281159 DOI: 10.1111/ene.13556] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Accepted: 12/18/2017] [Indexed: 12/19/2022]
Abstract
BACKGROUND AND PURPOSE Non-alcoholic fatty liver disease (NAFLD) is closely correlated to visceral obesity, dyslipidaemia, insulin resistance and type 2 diabetes mellitus. We sought to assess the association between a specific stroke subgroup, brainstem infarctions (BSIs) and NAFLD. Furthermore, we evaluated whether NAFLD is an independent risk factor in patients with BSIs. METHODS Non-alcoholic fatty liver disease was assessed in 306 patients with radiologically confirmed BSIs via liver ultrasound. Differences between patients with and without NAFLD were compared. Data associated with stroke severity and progression after admission were collected. RESULTS Non-alcoholic fatty liver disease was found in 130 (42.5%) patients with acute BSIs; 58 (19.0%) had National Institutes of Health Stroke Scale scores >7 and 57 (18.6%) had progression after admission. Initial National Institutes of Health Stroke Scale scores, incidence of progression and stroke severity, and modified Rankin Scale scores at discharge were significantly higher in patients with NAFLD than in those without NAFLD. NAFLD was associated with stroke severity [Cox regression: hazard ratio (HR), 2.243; 95% confidence interval (CI), 1.254-4.013, P < 0.01]. This risk remained statistically significant after controlling for age, gender, diabetes mellitus and C-reactive protein (HR, 2.327; 95% CI, 1.252-4.324, P < 0.01). In addition, NAFLD was associated with progression (HR, 2.155; 95% CI, 1.201-3.865, P < 0.05) and remained significant after controlling for age, gender, diabetes mellitus, fibrinogen and C-reactive protein (HR, 2.378; 95% CI, 1.260-4.486, P < 0.01). CONCLUSIONS These results suggest that NAFLD is a potential risk factor when evaluating the severity and progression of acute BSIs. This relationship is independent of classic risk factors and metabolic syndrome features.
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Affiliation(s)
- H Li
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou
| | - B Hu
- Guangdong Provincial Bioengineering Institute (Guangzhou Sugarcane Industry Research Institute), Guangzhou
| | - L Wei
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou
| | - L Zhou
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Clinical Medicine of Guangdong Pharmaceutical University, Guangzhou
| | - L Zhang
- Department of Neurology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
| | - Y Lin
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou
| | - B Qin
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou
| | - Y Dai
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou
| | - Z Lu
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou
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Chen HK, Dai Y, Wu T, Wang X, Wan YL, Tang JQ. [Mechanism of cross talk between tissue factor/active coagulation factor VII and epidermal growth factor receptor signalings in colon cancer cells in culture]. Beijing Da Xue Xue Bao Yi Xue Ban 2017; 49:931-936. [PMID: 29263461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To preliminarily verify the cross talk between tissue factor/active coagulation factor VII (TF/FVIIa) and epidermal growth factor receptor (EGFR) pathways in human colon cancer cells in culture. METHODS FVIIa was treated to HT-29 (KRAS-wild type) and LoVo (KRAS-mutant) colon cancer cells to activate TF/FVIIa pathway, qRT-PCR and Western blot were used to detect the expressions of amphiregulin (AREG) and epiregulin (EREG), ligands of EGFR on mRNA and protein levels, respectively. After knocking down expression of TF by TF-targeted siRNA transfection, FVIIa was treated and mRNA expressions of AREG and EREG were detected to see whether the FVIIa-induced effects were dependent on TF. Expressions of mRNA of TF and FVII were detected by qRT-PCR following the activation of EGFR pathway by treatment with epidermal growth factor (EGF) to HT-29 and LoVo cells. RESULTS After TF/FVIIa pathway was activated, for HT-29 cells, expressions of AREG (on mRNA level) and EREG (both on mRNA and protein level) were significantly down-regulated versus those of control group, gene expressions of AREG and EREG were 0.55±0.09 vs.0.99 ±0.09, 0.67±0.10 vs.1.02±0.02, protein expressions of EREG were 0.54±0.09 vs.1.04±0.13, all P<0.05. For LoVo cells, expressions of AREG (both on mRNA and protein level) and EREG (on protein level) were significantly up-regulated versus those of control group, gene expression of AREG were 1.87±0.39 vs. 0.93±0.23, protein expressions of AREG and EREG were 3.09±0.73 vs.1.11±0.21, 1.53±0.19 vs.0.97±0.23, all P<0.05. The regulating effect of AREG and EREG mRNA expression by FVIIa in HT-29 and LoVo cells could both be partly blocked by knocking down TF expression. For HT-29 cells, activation of EGFR pathway induced no significant TF mRNA expression, FVII mRNA expression was not detected. However,for LoVo cells, activation of EGFR pathway induced significantly higher mRNA expressions of both TF and FVII, expressions were 1.53±0.23 vs.1.00±0.23, 53.20±6.08 vs.1.00±0.15, all P<0.05. CONCLUSION In colon cancer cell LoVo, when activated, TF/FVIIa pathway and EGFR pathway could interact through upregulating the other pathway's effectors, and mutant KRAS might play a critical role in the two pathways' cross talk.
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Affiliation(s)
- H K Chen
- Department of General Surgery, Peking University First Hospital, Beijing 100034, China
| | - Y Dai
- Department of Gastroenterology, Peking University First Hospital, Beijing 100034, China
| | - T Wu
- Department of Gastroenterology, Peking University First Hospital, Beijing 100034, China
| | - X Wang
- Department of General Surgery, Peking University First Hospital, Beijing 100034, China
| | - Y L Wan
- Department of General Surgery, Peking University First Hospital, Beijing 100034, China
| | - J Q Tang
- Department of General Surgery, Peking University First Hospital, Beijing 100034, China
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Wang Y, Yan F, Jia Q, Dai Y, Wang Q. Quantitative structure-activity relationship of anti-HIV integrase and reverse transcriptase inhibitors using norm indexes. SAR QSAR Environ Res 2017; 28:1025-1044. [PMID: 29157005 DOI: 10.1080/1062936x.2017.1397055] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Accepted: 10/23/2017] [Indexed: 06/07/2023]
Abstract
The development of new and safe anti-human immunodeficiency virus (anti-HIV) drugs has been an urgent task for medical research recently. Herein, based on the norm-index descriptors proposed in this work and previous works, a couple of models were developed for investigating the quantitative structure-activity/toxicity relationship (QSAR/QSTR) of dual-target anti-HIV integrase (IN) and reverse transcriptase (RT) inhibitors. The validation results proved that the developed models were stable and reliable, both in statistical quality and predictive capacity. Moreover, potential dual-target inhibitors with high activity and low toxicity were deduced from the developed models; molecular docking results indicated that these inhibitors could interact with some important residues of HIV IN and RT through H-bonding. Accordingly, the norm indexes descriptors proposed by this work might be helpful for the research and development of dual-target anti-HIV drugs.
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Affiliation(s)
- Y Wang
- a School of Chemical Engineering and Material Science , Tianjin University of Science and Technology , Tianjin , PR China
| | - F Yan
- a School of Chemical Engineering and Material Science , Tianjin University of Science and Technology , Tianjin , PR China
| | - Q Jia
- b School of Marine and Environmental Science , Tianjin University of Science and Technology , Tianjin , PR China
| | - Y Dai
- c School of Bioengineering , Tianjin University of Science and Technology , Tianjin , PR China
| | - Q Wang
- a School of Chemical Engineering and Material Science , Tianjin University of Science and Technology , Tianjin , PR China
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Zhang C, Han X, Douglas P, Dai Y, Wang G. Bipolar Radiofrequency Ablation of Spinal Tumors: The Effect of the Posterior Vertebral Cortex Defect on Temperature Distribution in the Spinal Canal. AJNR Am J Neuroradiol 2017; 39:E1-E2. [PMID: 29146717 DOI: 10.3174/ajnr.a5393] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- C Zhang
- Department of Bone and Soft Tissue Tumors Tianjin Medical University Cancer Institute and Hospital National Clinical Research Center for Cancer Key Laboratory of Cancer Prevention and Therapy Tianjin's Clinical Research Center for Cancer Tianjin, China
| | - X Han
- Department of Bone and Soft Tissue Tumors Tianjin Medical University Cancer Institute and Hospital National Clinical Research Center for Cancer Key Laboratory of Cancer Prevention and Therapy Tianjin's Clinical Research Center for Cancer Tianjin, China
| | - P Douglas
- Tianjin Medical University Tianjin, China
| | - Y Dai
- Institute of Robotics and Automatic Information System Tianjin Key Laboratory of Intelligent Robotics College of Computer and Control Engineering, Nankai University Tianjin, China
| | - G Wang
- Department of Bone and Soft Tissue Tumors Tianjin Medical University Cancer Institute and Hospital National Clinical Research Center for Cancer Key Laboratory of Cancer Prevention and Therapy Tianjin's Clinical Research Center for Cancer Tianjin, China
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Chen J, Chen Y, Chen G, Dai Y, Yao Z, Lu Q. Altered brain networks in psychogenic erectile dysfunction: a resting-state fMRI study. Andrology 2017; 5:1073-1081. [PMID: 29073337 DOI: 10.1111/andr.12411] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 06/28/2017] [Accepted: 07/06/2017] [Indexed: 12/13/2022]
Affiliation(s)
- J. Chen
- Department of Andrology; Nanjing Drum Tower Hospital; The Affiliated Hospital of Nanjing University Medical School; Nanjing China
| | - Y. Chen
- Department of Andrology; Nanjing Drum Tower Hospital; The Affiliated Hospital of Nanjing University Medical School; Nanjing China
| | - G. Chen
- Department of Andrology; Nanjing Drum Tower Hospital; The Affiliated Hospital of Nanjing University Medical School; Nanjing China
| | - Y. Dai
- Department of Andrology; Nanjing Drum Tower Hospital; The Affiliated Hospital of Nanjing University Medical School; Nanjing China
| | - Z. Yao
- Department of Psychiatry; Nanjing Brain Hospital; The Affiliated Hospital of Nanjing Medical University; Nanjing China
| | - Q. Lu
- Key Laboratory of Child Development and Learning Science; Research Centre for Learning Science; Southeast University; Nanjing China
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Yao Z, Lin P, Dai Y, Wei Z, Wang Q, Yao X. Investigation of in vivo bioactive components and holistic quality control of Sarcandrae Herba. Am J Transl Res 2017. [DOI: 10.1055/s-0037-1608518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Z Yao
- College of Pharmacy, Jinan University, Guangzhou 510632, P.R. China;, Guangzhou, China
- Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, P.R. China;, Guangzhou, China
| | - P Lin
- College of Pharmacy, Jinan University, Guangzhou 510632, P.R. China;, Guangzhou, China
- Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, P.R. China;, Guangzhou, China
| | - Y Dai
- College of Pharmacy, Jinan University, Guangzhou 510632, P.R. China;, Guangzhou, China
- Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, P.R. China;, Guangzhou, China
| | - Z Wei
- College of Pharmacy, Jinan University, Guangzhou 510632, P.R. China;, Guangzhou, China
- Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, P.R. China;, Guangzhou, China
| | - Q Wang
- College of Pharmacy, Jinan University, Guangzhou 510632, P.R. China;, Guangzhou, China
- Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, P.R. China;, Guangzhou, China
| | - X Yao
- College of Pharmacy, Jinan University, Guangzhou 510632, P.R. China;, Guangzhou, China
- Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, P.R. China;, Guangzhou, China
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121
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Yao Z, Qin Z, Lin P, Hong X, Wang L, Dai Y, Yao X. Case study of Allii Macrostemonis Bulbus: From chemical and metabolic profile to quality control by UPLC/Q-TOF-MS. Am J Transl Res 2017. [DOI: 10.1055/s-0037-1608517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Z Yao
- Jinnan University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, P.R. China;, Guangzhou, China
| | - Z Qin
- Jinnan University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, P.R. China;, Guangzhou, China
| | - P Lin
- Jinnan University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, P.R. China;, Guangzhou, China
| | - X Hong
- Jinnan University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, P.R. China;, Guangzhou, China
| | - L Wang
- Jinnan University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, P.R. China;, Guangzhou, China
| | - Y Dai
- Jinnan University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, P.R. China;, Guangzhou, China
| | - X Yao
- Jinnan University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, P.R. China;, Guangzhou, China
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Gao X, Yang YM, Zhu J, Dai Y, Tan HQ. [Dabigatran versus warfarin for the prevention of stroke in Chinese patients with nonvalvular atrial fibrillation: Chinese subpopulation analysis of RE-LY]. Zhonghua Xin Xue Guan Bing Za Zhi 2017; 44:929-934. [PMID: 27903389 DOI: 10.3760/cma.j.issn.0253-3758.2016.11.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: This analysis was performed to evaluate the efficacy in stroke prevention and safety of dabigatran in Chinese nonvalvular atrial fibrillation(NVAF) patients enrolled in RE-LY trial. Methods: RE-LY was an prospective, open-label, randomized, multicenter study. From March 2006 to March 2009, 541 atrial fibrillation patients at risk of stroke were recruited from 13 medical centers in China. Patients randomly received, in a blinded fashion, fixed doses of dabigatran-110 mg or 150 mg twice daily or, in an unblinded fashion, adjusted-dose warfarin. The primary efficacy endpoint was stroke or systemic embolism. The primary safety endpoint was major bleeding. Results: The incidence of stroke in the Chinese subpopulation was 1.94% per year(7 cases) in the group that received 110 mg of dabigatran (dabigatran 110) and 1.10% per year(4 cases) in the group that received 150 mg of dabigatran (dabigatran 150), as compared with 2.87% per year (10 cases) in warfarin group . Incidence of ischemic stroke was 1.11% per year(4 patients) in dabigatran 110 group, 0.82% per year(3 cases) in dabigatran 150 group and 2.01% per year(7 patients) in warfarin group. Incidence of hemorrhagic stroke was 0.28% per year(1 case) in dabigatran 110 group, 0.27% per year(1 case) in dabigatran 150 group and 0.57% per year(2 cases) in warfarin group. All-cause mortality was similar among the three treatment groups: 3.33% per year(12 cases) in dabigatran 110, 2.19% per year(8 cases) in dabigatran 150 and 2.58% per year(9 cases) in warfarin group. Incidence of major bleeding event was 0.56% per year(2 cases) in both dabigatran groups, as compared with 1.43% per year(5 cases) in warfarin group. Gastrointestinal disorders such as dyspepsia occurred in 12.8% patients of both dabigatran groups, and in 5.6% patients of warfarin group. Conclusions: Despite the descriptive statistical analysis in nature of present study due to the limited number of subjects, our subgroup analysis implies that like warfarin, dabigatran is efficacious and safe for thromboembolism prevention in Chinese patients with atrial fibrillation at risk of stroke. Clinical Trail Registry National Institutes of Health(http: //www.clinicaltrials.gov), CT00262600.
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Affiliation(s)
- X Gao
- Emergency and Intensive Care Center, Cardiovascular Department, Fuwai Hospital, Chinese Academy Of Medical Sciences and Peking Union Medical College, Beijing 10037, China
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Li Z, Zhao S, Chen K, Su Y, Hua W, Chen S, Liang Z, Xu W, Dai Y, Chen R, Zhang S. P6415Baseline continuous premature ventricular complexes burden serves as a predictor for later cardiac death and ventricular arrhythmia events in ICD or CRTD recipients. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p6415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Z. Li
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Cardiac Arrhythmia Center, Beijing, China People's Republic of
| | - S. Zhao
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Cardiac Arrhythmia Center, Beijing, China People's Republic of
| | - K. Chen
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Cardiac Arrhythmia Center, Beijing, China People's Republic of
| | - Y. Su
- Zhongshan Hospital, Fudan University, Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Shanghai, China People's Republic of
| | - W. Hua
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Cardiac Arrhythmia Center, Beijing, China People's Republic of
| | - S. Chen
- Guangdong General Hospital Guangdong Cardiovascular Institute, Department of Cardiology, Guangdong Cardiovascular Institute, Guangzhou, China People's Republic of
| | - Z. Liang
- The First Affiliated Hospital of Harbin Medical University, Department of Cardiology, Harbin, China People's Republic of
| | - W. Xu
- Nanjing Drum Tower Hospital, Department of Cardiology, Nanjing, China People's Republic of
| | - Y. Dai
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Cardiac Arrhythmia Center, Beijing, China People's Republic of
| | - R. Chen
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Cardiac Arrhythmia Center, Beijing, China People's Republic of
| | - S. Zhang
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Cardiac Arrhythmia Center, Beijing, China People's Republic of
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Leng JH, Dai Y. [The new conception focusing on therapy of endometriosis]. Zhonghua Fu Chan Ke Za Zhi 2017; 52:433-435. [PMID: 28797148 DOI: 10.3760/cma.j.issn.0529-567x.2017.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
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125
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Hu Q, Hong L, Nie M, Wang Q, Fang Y, Dai Y, Zhai Y, Wang S, Yin C, Yang X. The effect of dehydroepiandrosterone supplementation on ovarian response is associated with androgen receptor in diminished ovarian reserve women. J Ovarian Res 2017; 10:32. [PMID: 28472976 PMCID: PMC5418866 DOI: 10.1186/s13048-017-0326-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 04/18/2017] [Indexed: 11/10/2022] Open
Abstract
Background Diminished ovarian reserve(DOR) is associated with female infertility and poor response to ovarian stimulation. Our objective was to assess the effect of dehydroepiandrosterone(DHEA) on DOR women and to explore whether the improvement of ovarian response after DHEA supplementation was dependent on the expression levels of androgen receptor(AR). Methods A prospective cohort study was performed in the Department of Human Reproductive Medicine, Beijing Obstetrics and Gynecology Hospital during August 2014 to August 2016. 103 DOR women who completed the study were divided into the DHEA group (n = 53), which received DHEA supplementation (25 mg three times a day) for 8 weeks, and the control group (n = 50), which did not receive DHEA, before the IVF cycles. Serum hormone levels(FSH, LH, E2, T, DHEAs, AMH, INHB), antral follicle count(AFC) and the expression of AR and FSH receptor(FSHR) in granulosa cells(GCs) were measured, meanwhile ovarian response parameters and IVF outcomes were compared. The GCs from another 36 DOR women were cultured with different concentrations of DHEA in vitro. Then, we compared the expression of AR and FSHR in GCs according to the different numbers of oocytes retrieved both in DHEA and control group. Results In the present study, DHEA supplementation resulted in significantly higher levels of serum T(P = 0.047), DHEAs(P = 0.019) and AR mRNA expression in GCs(P = 0.049). In vitro experiment, the protein and mRNA expression of AR and FSHR in the preovulatory GCs were significantly increased in response to DHEA supplementation(P <0.05). No significant differences were found in ovarian reserve, ovarian response, or IVF outcomes between the two groups. Subgroup analyses showed the levels of AR and FSHR mRNA in GCs were significantly increased in DHEA group with ≥5 oocytes retrieved(P <0.05). Conclusion DHEA supplementation can increase the expression of AR in preovulatory GCs both in vivo and in vitro. The selective beneficial effects of DHEA supplementation on ovarian response in DOR women may depend on the increasing expression of AR and FSHR in GCs. Trial registration The Chinese Clinical Trial Registry (ChiCTR-IPR-15006126). Retrospectively Registered 19 March 2015.
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Affiliation(s)
- Qiaofei Hu
- Department of Human Reproductive Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, 251 Yaojiayuan Road, Chaoyang District, Beijing, 100026, China.,Department of Reproduction Regulation, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, 100006, China
| | - Liming Hong
- Department of Human Reproductive Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, 251 Yaojiayuan Road, Chaoyang District, Beijing, 100026, China
| | - Mingyue Nie
- Department of Gynecology Minimally Invasive Center, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, 100006, China
| | - Qin Wang
- Department of Human Reproductive Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, 251 Yaojiayuan Road, Chaoyang District, Beijing, 100026, China
| | - Ying Fang
- Department of Human Reproductive Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, 251 Yaojiayuan Road, Chaoyang District, Beijing, 100026, China
| | - Yinmei Dai
- Department of Gynecology Minimally Invasive Center, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, 100006, China
| | - Yanhong Zhai
- Department of Laboratory Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, 100026, China
| | - Shuyu Wang
- Department of Human Reproductive Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, 251 Yaojiayuan Road, Chaoyang District, Beijing, 100026, China
| | - Chenghong Yin
- Department of Human Reproductive Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, 251 Yaojiayuan Road, Chaoyang District, Beijing, 100026, China.
| | - Xiaokui Yang
- Department of Human Reproductive Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, 251 Yaojiayuan Road, Chaoyang District, Beijing, 100026, China.
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Nie X, Mao W, Tan J, Dai Y, Chen J. The Nuclear Orphan Receptors NR4A as Therapeutic Target in Pulmonary Arterial Hypertension. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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127
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Liu S, Hou XL, Sui WG, Lu QJ, Hu YL, Dai Y. Direct measurement of B-cell receptor repertoire's composition and variation in systemic lupus erythematosus. Genes Immun 2017; 18:22-27. [PMID: 28053320 DOI: 10.1038/gene.2016.45] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 10/30/2016] [Accepted: 11/01/2016] [Indexed: 01/11/2023]
Abstract
Systemic lupus erythematosus (SLE) is a systemic autoimmune disease that is known to be associated with polyclonal B-cell hyper-reactivity. B-cell receptor (BCR) has a central role in B-cell development, activation, survival and apoptosis, and thus is a critical component of the regulation of both protective and autoreactive B cells. In this study, we applied multiplex PCR and Illumina high-throughput sequencing to study the composition and variation of the BCRs in peripheral blood mononuclear cells from SLE patients and healthy donors (NC). We found that SLE group displayed significantly shorter CDR3 average length (14.86±0.76aa vs 15.70±0.43aa), more arginine percentage of CDR3 amino acids (7.57±0.20% vs 7.32±0.19%) and poorer immunological diversity than the healthy ones. CDR3 sequence YGMDV present in all SLE samples may provide more information in generating more effective B-cell targeted diagnosis/therapies strategies.
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Affiliation(s)
- S Liu
- Department of Clinical Medical Research, The Second Clinical Medical College of Jinan University (Shenzhen People's Hospital), Shenzhen, China
| | - X L Hou
- Nephrology Department of Guilin 181st Hospital, Guangxi Key Laboratory of Metabolic Diseases Research, Guilin, China
| | - W G Sui
- Nephrology Department of Guilin 181st Hospital, Guangxi Key Laboratory of Metabolic Diseases Research, Guilin, China
| | - Q J Lu
- Department of Dermatology, Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Medical Epigenomics, Changsha, China
| | - Y L Hu
- Department of Cancer Research, Shenzhen University, Shenzhen, China.,Department of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Y Dai
- Department of Clinical Medical Research, The Second Clinical Medical College of Jinan University (Shenzhen People's Hospital), Shenzhen, China
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Liu LJ, Martinez-Sañudo I, Mazzon L, Prabhakar CS, Girolami V, Deng YL, Dai Y, Li ZH. Bacterial communities associated with invasive populations of Bactrocera dorsalis (Diptera: Tephritidae) in China. Bull Entomol Res 2016; 106:718-728. [PMID: 27600786 DOI: 10.1017/s0007485316000390] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The oriental fruit fly Bactrocera dorsalis (Hendel) is a destructive insect pest of a wide range of fruits and vegetables. This pest is an invasive species and is currently distributed in some provinces of China. To recover the symbiotic bacteria of B. dorsalis from different invasion regions in China, we researched the bacterial diversity of this fruit fly among one laboratory colony (Guangdong, China) and 15 wild populations (14 sites in China and one site in Thailand) using DNA-based approaches. The construction of 16S rRNA gene libraries allowed the identification of 24 operational taxonomic units of associated bacteria at the 3% distance level, and these were affiliated with 3 phyla, 5 families, and 13 genera. The higher bacterial diversity was recovered in wild populations compared with the laboratory colony and in samples from early term invasion regions compared with samples from late term invasion regions. Moreover, Klebsiella pneumoniae and Providencia sp. were two of the most frequently recovered bacteria, present in flies collected from three different regions in China where B. dorsalis is invasive. This study for the first time provides a systemic investigation of the symbiotic bacteria of B. dorsalis from different invasion regions in China.
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Affiliation(s)
- L J Liu
- Department of Entomology,College of Plant Protection, China Agricultural University,Beijing,China
| | - I Martinez-Sañudo
- Dipartimento di Agronomia Ambientale e Produzioni Vegetali,Università di Padova - Agripolis, Viale dell'Università,Legnaro,Padova,Italy
| | - L Mazzon
- Dipartimento di Agronomia Ambientale e Produzioni Vegetali,Università di Padova - Agripolis, Viale dell'Università,Legnaro,Padova,Italy
| | - C S Prabhakar
- Department of Entomology,College of Plant Protection, China Agricultural University,Beijing,China
| | - V Girolami
- Dipartimento di Agronomia Ambientale e Produzioni Vegetali,Università di Padova - Agripolis, Viale dell'Università,Legnaro,Padova,Italy
| | - Y L Deng
- Xishuangbanna Entry-Exit Inspection and Quarantine Bureau,Xishuangbanna,Yunnan,China
| | - Y Dai
- Department of Entomology,College of Plant Protection, China Agricultural University,Beijing,China
| | - Z H Li
- Department of Entomology,College of Plant Protection, China Agricultural University,Beijing,China
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Zhang Z, Xu Z, Dai Y, Chen Y. Elevated serum homocysteine level as an independent risk factor for erectile dysfunction: a prospective pilot case-control study. Andrologia 2016; 49. [PMID: 27709655 DOI: 10.1111/and.12684] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/15/2016] [Indexed: 12/20/2022] Open
Abstract
Homocysteine is an amino acid that is produced from the metabolic demethylation of dietary methionine. It has gained arising attention for its association with increased risk of myocardial infarction, stroke and venous thromboembolism. Erectile dysfunction (ED), especially for vasculogenic ED, is a vascular disorder of cavernosal vascular bed. In this prospective pilot case-control study, we investigated plasma homocysteine levels in 32 ED patients and 20 healthy control men. Related patients characteristics including age, weight, height, marital status, smoking and drinking status, level of education were collected and analysed as well as penile colour Doppler ultrasound parameters. ED patients were further categorised into mild, moderate and severe ED based on 5-item of the International Index of Erectile Function. Higher homocysteine levels were observed in ED patients as compared with controls (p < .05). A multivariate logistic regression with likelihood ratio test revealed that homocysteine and penile peak systolic blood flow velocity (PSV) levels posed significant indicators for ED (chi-square of likelihood ratio = 20.42, df = 2, p < .005) as well as moderate and severe ED occurrence (chi-square of likelihood ratio = 28.50, df = 2, p < .005). The threshold value of homocysteine concentration to discriminate ED and control subjects was 12.65 μmol/L by performing receiver operating characteristic curve analyses. These data suggested that elevation of homocysteine levels was associated with an increased risk of ED.
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Affiliation(s)
- Z Zhang
- Department of Andrology, Affiliated Drum Tower Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Z Xu
- Department of Andrology, Affiliated Drum Tower Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Y Dai
- Department of Andrology, Affiliated Drum Tower Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Y Chen
- Department of Andrology, Affiliated Drum Tower Hospital, School of Medicine, Nanjing University, Nanjing, China
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Garrick TR, Dai Y, Higa K, Srinivasan V, Weidner JW. Modeling Battery Performance Due to Intercalation Driven Volume Change in Porous Electrodes. ACTA ACUST UNITED AC 2016. [DOI: 10.1149/07211.0011ecst] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Cai A, Qi S, Su Z, Shen H, Yang Y, Cai W, Dai Y. A Pilot Metabolic Profiling Study of Patients With Neonatal Jaundice and Response to Phototherapy. Clin Transl Sci 2016; 9:216-20. [PMID: 27306191 PMCID: PMC5351341 DOI: 10.1111/cts.12401] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 04/18/2016] [Accepted: 04/22/2016] [Indexed: 12/03/2022] Open
Abstract
Phototherapy has been widely used in treating neonatal jaundice, but detailed metabonomic profiles of neonatal jaundice patients and response to phototherapy have not been characterized. Our aim was to depict the serum metabolic characteristics of neonatal jaundice patients relative to controls and changes in response to phototherapy. A (1) H nuclear magnetic resonance (NMR)-based metabonomic approach was employed to study the metabolic profiling of serum from healthy infants (n = 25) and from infants with neonatal jaundice (n = 30) pre- and postphototherapy. The acquired data were processed by multivariate principal component analysis (PCA) and orthogonal partial least-squares-discriminant analysis (OPLS-DA). The PLS-DA and OPLS-DA model identified nine metabolites capable of distinguishing patients from controls. In addition, 28 metabolites such as β-glucose, α-glucose, valine, and pyruvate changed in response to phototherapy. This study offers useful information on metabolic disorders in neonatal jaundice patients and the effects of phototherapy on lipids, amino acid, and energy metabolism.
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Affiliation(s)
- A Cai
- Department of LaboratoryNanshan Affiliated Hospital of Guangdong Medical CollegeShenzhenGuangdongP.R. China
| | - S Qi
- Department of Biomedical EngineeringMedical schoolShenzhen UniversityGuangdongP.R. China
| | - Z Su
- Department of LaboratoryNanshan Affiliated Hospital of Guangdong Medical CollegeShenzhenGuangdongP.R. China
| | - H Shen
- Department of LaboratoryNanshan Affiliated Hospital of Guangdong Medical CollegeShenzhenGuangdongP.R. China
| | - Y Yang
- Department of LaboratoryNanshan Affiliated Hospital of Guangdong Medical CollegeShenzhenGuangdongP.R. China
| | - W Cai
- Department of LaboratoryNanshan Affiliated Hospital of Guangdong Medical CollegeShenzhenGuangdongP.R. China
| | - Y Dai
- Second Clinical Medical CollegeShenzhen People's HospitalJinan UniversityShenzhenGuangdong ProvinceP.R. China
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Li L, Leng JH, Shi JH, Zhang JJ, Jia SZ, Li XY, Dai Y, Zhang JR, Li T, Xu XX, Liu ZZ, You SS, Chang XY, Lang JH. [A prospective study on the effects of levonorgestrel-releasing intrauterine system for adenomyosis with menorrhagia]. Zhonghua Fu Chan Ke Za Zhi 2016; 51:424-30. [PMID: 27356477 DOI: 10.3760/cma.j.issn.0529-567x.2016.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate treatment effects of levonorgestrel-releasing intrauterine system (LNG-IUS) for adenomyosis with menorrhea in a prospective study. METHODS From December 2006 to December 2014, patients of symptomatic adenomyosis diagnosed by transvaginal ultrasound in outpatient or inpatient clinics of Peking Union Medical College Hospital were given the treatment of LNG-IUS. Before and after placement of LNG-IUS, all the patients' parameters were recorded prospectively, including scores of menstruation blood loss, carrying status of IUS, symptoms and scores of dysmenorrhea, biochemical indicators, physical parameters, menstruation patterns and adverse effects. Changes of pictorial chart scores of menstruation and distribution of anemia during follow-up were analyzed. RESULTS Totally 1 100 women meets inclusion criteria, among which 618 cases (56.18%, 618/1 100) had severe menorrhea, with median follow-up period of 28 months (range 1- 60 months), and accumulative carrying rate of 66% at 60 months follow-up. After placement of LNG-IUS, compared with baselines, pictorial chart scores and ratio of menorrhea had decreased significantly (all P<0.01), the scroes of menstruation were 157±34, 94±35, 70±33, 67±18, 67±20, 65±19, 66±19, 65±21 at 0, 3, 6, 12, 24, 36, 48 and 60 months respectively. During 24 months after placement of LNG-IUS, pictorial chart scores and distribution of anemia had improved significantly compared with preceding period (all P<0.01). We found no dependent factors predicting improvement of pictorial chart scores of menorrhea, which was neither relevant with simultaneous changes of menstruation patterns nor adverse effects (all P>0.05). CONCLUSIONS LNG-IUS is effective for adenomyosis of menorrhea. Improvement of menstruation blood loss is independent on patients characters, menstruation patterns or adverse effects.
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Affiliation(s)
- L Li
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
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Dai Y, Yan Z, Jia L, Zhang S, Gao L, Wei X, Mei Z, Liu X. The composition, localization and function of low-temperature-adapted microbial communities involved in methanogenic degradations of cellulose and chitin from Qinghai-Tibetan Plateau wetland soils. J Appl Microbiol 2016; 121:163-76. [PMID: 27123875 DOI: 10.1111/jam.13164] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 12/26/2015] [Accepted: 01/18/2016] [Indexed: 02/05/2023]
Affiliation(s)
- Y. Dai
- Key Laboratory of Environmental and Applied Microbiology; Environmental Microbiology Key Laboratory of Sichuan Province; Chengdu Institute of Biology; Chinese Academy of Sciences; Sichuan China
| | - Z. Yan
- Key Laboratory of Environmental and Applied Microbiology; Environmental Microbiology Key Laboratory of Sichuan Province; Chengdu Institute of Biology; Chinese Academy of Sciences; Sichuan China
| | - L. Jia
- The State Key Laboratory of Biotherapy; West China Hospital; Sichuan University; Sichuan China
| | - S. Zhang
- Key Laboratory of Environmental and Applied Microbiology; Environmental Microbiology Key Laboratory of Sichuan Province; Chengdu Institute of Biology; Chinese Academy of Sciences; Sichuan China
| | - L. Gao
- Department of Agricultural Engineering; Chongqing Academy of Agricultural Sciences; Chongqing China
| | - X. Wei
- Department of Agricultural Engineering; Chongqing Academy of Agricultural Sciences; Chongqing China
| | - Z. Mei
- Center of Agricultural Engineering; Biogas Institute of Ministry of Agriculture; Chengdu China
| | - X. Liu
- Key Laboratory of Environmental and Applied Microbiology; Environmental Microbiology Key Laboratory of Sichuan Province; Chengdu Institute of Biology; Chinese Academy of Sciences; Sichuan China
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134
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Li L, Leng JH, Dai Y, Zhang JJ, Jia SZ, Li XY, Shi JH, Zhang JR, Li T, Xu XX, Liu ZZ, You SS, Chang XY, Lang JH. [A prospective cohort study on effects of levonorgestrel-releasing intrauterine system for adenomyosis with severe dysmenorrhea]. Zhonghua Fu Chan Ke Za Zhi 2016; 51:345-51. [PMID: 27256441 DOI: 10.3760/cma.j.issn.0529-567x.2016.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate treatment effects of levonorgestrel-releasing intrauterine system (LNG-IUS) for adenomyosis with severe dysmenorrhea in a prospective cohort study. METHODS From December 2006 to December 2014, patients of symptomatic adenomyosis diagnosed by transvaginal ultrasound in outpatient or inpatient clinics of Peking Union Medical College Hospital were given the treatment of LNG-IUS. Before and after placement of LNG-IUS, all the patients' parameters were recorded prospectively, including symptoms and scores of dysmenorrhea, menstruation scores, biochemical indicators, physical parameters, carrying status of LNG-IUS, menstruation patterns and adverse effects. Changes of scores and patterns of pain during follow-up were analyzed. RESULTS Totally 1 100 women meets inclusion criteria, among which 640 cases (58.18%, 640/1 100) had severe dysmeorrhea, with median follow-up period of 35 months (range 1-60 months), and accumulative carrying rate of 65% at 60 months follow-up. After placement of LNG-IUS, scores of pain and ratio of severe dysmenorrhea had decreased significantly compared with baselines (all P<0.01), the scroes of visual analog scale (VAS) were 8.1±0.9, 5.5±2.4, 4.6±2.4, 3.3±2.2, 2.2±2.1, 2.2±1.8, 1.4±1.6 and 1.3±1.3 at 0, 3, 6, 12, 24, 36, 48 and 60 months respectively. During 36 months after placement of LNG-IUS, scores of pain had improved significantly compared with preceding period (all P<0.01). We found no universal dependent factors predicting improvement of pain, which was neither relevant with simultaneous changes of menstruation patterns nor adverse effects (all P>0.05). CONCLUSION LNG-IUS is effective for adenomyosis of severe dysmenorrhea. Improvement of pain is independent on patients characters, menstruation patterns or adverse effects.
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Affiliation(s)
- L Li
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
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Xu J, Chen A, Xiao J, Jiang Z, Tian Y, Tang Q, Cao P, Dai Y, Krainik A, Shen J. Evaluation of tumour vascular distribution and function using immunohistochemistry and BOLD fMRI with carbogen inhalation. Clin Radiol 2016; 71:1255-1262. [PMID: 27170218 DOI: 10.1016/j.crad.2016.04.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2015] [Revised: 02/18/2016] [Accepted: 04/06/2016] [Indexed: 10/21/2022]
Abstract
AIM To evaluate oxygenation changes in rat subcutaneous C6 gliomas using blood-oxygen-level dependent (BOLD) functional magnetic resonance imaging (fMRI) combined with non-haemodynamic response function (non-HRF) analysis. MATERIALS AND METHODS BOLD fMRI were performed during carbogen inhalation in 20 Wistar rats bearing gliomas. Statistical maps of spatial oxygenation changes were computed by a dedicated non-HRF analysis algorithm. Three types of regions of interest (ROIs) were defined: (1) maximum re-oxygenation zone (ROImax), (2) re-oxygenation zones that were less than the maximum re-oxygenation (ROInon-max), and (3) zones without significant re-oxygenation (ROInone). The values of percent BOLD signal change (PSC), percent enhancement (ΔSI), and significant re-oxygenation (T) were extracted from each ROI. Tumours were sectioned for histology using the fMRI scan orientation and were stained with haematoxylin and eosin and CD105. The number of microvessels (MVN) in each ROI was counted. Differences and correlations among the values for T, PSC, ΔSI, and MVN were determined. RESULTS After carbogen inhalation, the PSC significantly increased in the ROImax areas (p<0.01) located in the tumour parenchyma. No changes occurred in any of the ROInone areas (20/20). Some changes occurred in a minority of the ROInon-max areas (3/60) corresponding to tumour necrosis. MVN and PSC (R=0.59, p=0.01) were significantly correlated in the ROImax areas. In the ROInon-max areas, MVN was significantly correlated with PSC (R=0.55, p=0.00) and ΔSI (R=0.37, p=0.00). CONCLUSIONS Statistical maps obtained via BOLD fMRI with non-HRF analysis can assess the re-oxygenation of gliomas.
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Affiliation(s)
- J Xu
- Department of Radiology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - A Chen
- Department of Radiology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - J Xiao
- Department of Radiology, The Central Hospital of Wuhan, Wuhan, China
| | - Z Jiang
- Department of Radiology, The Second Affiliated Hospital of Soochow University, Suzhou, China; Institute of Radiotherapy & Oncology, Soochow University, Suzhou, China.
| | - Y Tian
- Institute of Radiotherapy & Oncology, Soochow University, Suzhou, China; Suzhou Key Laboratory for Radiation Oncology, Suzhou, China
| | - Q Tang
- Department of Radiology, Wuxi People's Hospital, Wuxi, China
| | - P Cao
- Department of Radiology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Y Dai
- Magnetic Resonance Imaging Institute for Biomedical Research, Wayne State University, Detroit, MI, USA
| | - A Krainik
- Department of Neuroradiology and MRI, CHU Grenoble-IFR1, Grenoble, France
| | - J Shen
- Department of Radiology, The Second Affiliated Hospital of Soochow University, Suzhou, China
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136
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Dai Y, Eggers B, Metzler M, Künzel D, Groß A, Jacob T, Ziener U. Cyanophenyl vs. pyridine substituent: impact on the adlayer structure and formation on HOPG and Au(111). Phys Chem Chem Phys 2016; 18:6668-75. [PMID: 26871757 DOI: 10.1039/c5cp07853a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new cyano substituted bis(terpyridine) derivative CN-BTP was synthesized and its adsorption on highly oriented pyrolytic graphite (HOPG) and Au(111) was investigated. CN-BTP is closely related to the previously investigated 2,4'-BTP, where the cyanophenyl groups are replaced by pyridine moieties. The scanning tunneling microscopy (STM) investigation of CN-BTP at the liquid|HOPG interface shows a highly ordered herringbone structure that is stabilized by double weak intermolecular C-HN hydrogen bonds, partially through the -CN substituents, which is different from the most stable square structure of 2,4'-BTP. The adsorption processes were investigated using cyclic voltammetry (CV) on Au(111) in a neutral phosphate buffer. A fast and full adlayer formation could be observed with CN-BTP, whereas an extremely slow process with 2,4'-BTP under the same conditions was found. Our data show that the CN substituents on BTP not only change the structure of the monolayer at the liquid|HOPG interface, but also accelerate the phase transition process in the electrolyte dramatically. This could be explained by the adlayer-substrate interactions, which is supported by DFT calculations. Our findings might be extended more generally to further pyridine comprising self-assembling molecules to fine-tune the adlayer structure and phase transition/adsorption kinetics by replacing pyridine by cyanophenyl moieties.
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Affiliation(s)
- Y Dai
- Institut für Organische Chemie III, Universität Ulm, Albert-Einstein-Allee 11, D-89081 Ulm, Germany.
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137
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Li L, Chen F, Dai Y, Wu J, Shao J, Li HY. Fe-assisted Ru clusters supported on porous and graphitic carbon for ammonia decomposition to COx free hydrogen. RSC Adv 2016. [DOI: 10.1039/c6ra21211e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The Fe-assisted Ru clusters catalysts showed significantly improved performance for NH3 decomposition compared to that of Fe–C and Ru/C# catalysts.
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Affiliation(s)
- L. Li
- School of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224051
- China
| | - F. Chen
- School of Chemical Biology and Materials Engineering
- Suzhou University of Science and Technology
- China
| | - Y. Dai
- School of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224051
- China
| | - J. Wu
- School of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224051
- China
| | - J. L. Shao
- School of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224051
- China
| | - H. Y. Li
- School of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224051
- China
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138
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Tang H, Feng X, Zhang T, Dai Y, Zhou Z, Chen H, Liu L, Li X, Zhuang T, Liu X, Zhang Q. Stability, Pharmacokinetics, Biodistribution and Safety Assessment of Folate-Conjugated Pullulan Acetate Nanoparticles as Cervical Cancer Targeted Drug Carriers. J Nanosci Nanotechnol 2015; 15:6405-6412. [PMID: 26716194 DOI: 10.1166/jnn.2015.10752] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
It is recognized that the stability and journey in the body of nanoparticles are important issues for drug formulations. In this study, we prepared folate-conjugated pullulan acetate nanoparticles (FPANs) and epirubicin loaded FPANs (FPA/EPI) using dialysis method. The storage stability of FPANs and FPA/EPI at 4 degrees C could be up to 3 months. Using folate receptor overexpressed Hela cells, dose dependent cellular uptake and receptor-mediated endocytosis of FPA/EPI were confirmed. From the in vivo pharmacokinetics test, compared to free EPI, half-life time (t½) of FPA/EPI was extended 1.57 times and the area under-the-curve (AUC) increased 3.95 times as well. In addition, biodistribution data showed that, EPI concentration in tumor in FPA/EPI group was 2.01 times higher than that in free EPI group after 96 h; The concentration of drug in liver treated by FPA/EPI was 5.7-11.6 times, while in heart, kidney, especially in stomach and intestine were much lower than those in free EPI group from 24 to 96 h. Furthermore, blank FPANs showed no apparent acute toxicity at dose up to 125 mg/kg. All results suggested that FPA/EPI showed a promising potential on treating cervical carcinoma and its metastatic hepatocellular carcinoma in future because of the high stability, less toxicity and tumor targeting.
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139
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Huang SX, Liang JL, Sui WG, Lin H, Xue W, Chen JJ, Zhang Y, Gong WW, Dai Y, Ou ML. EDA mutation as a cause of hypohidrotic ectodermal dysplasia: a case report and review of the literature. Genet Mol Res 2015; 14:10344-51. [PMID: 26345974 DOI: 10.4238/2015.august.28.21] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Ectodermal dysplasia (ED) represents a collection of rare disorders that result from a failure of development of the tissues derived from the embryonic ectoderm. ED is often associated with hair, teeth, and skin abnormalities, which are serious conditions affecting the quality of life of the patient. To date, a large number of genes have been found to be associated with this syndrome. Here, we report a patient with hypohidrotic ED (HED) without family history. We identified that this patient's disorder arises from an X-linked HED with a mutation in the EDA gene (G299D) found by whole-exome sequencing. In addition, in this paper we summarize the disease-causing mutations based on current literature. Overall, recent clinical and genetic research involving patients with HED have uncovered a large number of pathogenic mutations in EDA, which might contribute to a full understanding of the function of EDA and the underlying mechanisms of HED caused by EDA mutations.
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Affiliation(s)
- S X Huang
- Medical Center of Stomatology of the Second Clinical Medical College, Jinan University, Shenzhen People's Hospital, Shenzhen, China
| | | | - W G Sui
- Guangxi Key Laboratory of Metabolic Diseases Research, Central Laboratory of Guilin 181st Hospital, Guilin, China
| | - H Lin
- Guangxi Key Laboratory of Metabolic Diseases Research, Central Laboratory of Guilin 181st Hospital, Guilin, China
| | - W Xue
- Guangxi Key Laboratory of Metabolic Diseases Research, Central Laboratory of Guilin 181st Hospital, Guilin, China
| | - J J Chen
- Guangxi Key Laboratory of Metabolic Diseases Research, Central Laboratory of Guilin 181st Hospital, Guilin, China
| | - Y Zhang
- Guangxi Key Laboratory of Metabolic Diseases Research, Central Laboratory of Guilin 181st Hospital, Guilin, China
| | - W W Gong
- Guangxi Key Laboratory of Metabolic Diseases Research, Central Laboratory of Guilin 181st Hospital, Guilin, China
| | - Y Dai
- Clinical Medical Research Center of the Second Clinical Medical College, Jinan University, Shenzhen People's Hospital, Shenzhen, China
| | - M L Ou
- Guangxi Key Laboratory of Metabolic Diseases Research, Central Laboratory of Guilin 181st Hospital, Guilin, China
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140
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Wang C, Niu Y, Chi D, Zeng Y, Liu H, Dai Y, Li J. Influence of Delipation on the Energy Metabolism in Pig Parthenogenetically Activated Embryos. Reprod Domest Anim 2015; 50:826-33. [PMID: 26303295 DOI: 10.1111/rda.12596] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Accepted: 07/27/2015] [Indexed: 01/25/2023]
Abstract
This study was designed not only to measure the effect of delipation on the developmental viability of pig parthenogenetically activated (PA) embryos, but also to evaluate the changes of mitochondria DNA (mtDNA), reactive oxygen species (ROS) level, adenosine triphosphate (ATP) content and gene (Acsl3, Acadsb, Acaa2, Glut1) expression level at different stages after delipation. Results showed that no effect was observed on the cleavage ability, but significant lower blastocyst rate was obtained in delipated embryos. Copy number of mtDNA decreased gradually from MII to four-cell stages and subsequently kept consistent with blastocyst stage both in delipated and control embryos, but the copy number of mtDNA in delipated embryos was similar to that in the control groups no matter at which developmental stage was observed. Both in delipated and control embryos, ATP content progressive decreased from one-cell to blastocyst stages, while just at one-cell stage, a significant decrease of ATP level was observed in delipated embryos compared with that of control. The level of ROS increased obviously after delipation at cleavage stage, but no difference was seen at blastocyst stage. Finally, the expression level of genes related to fatty acids beta-oxidation (Acadsb and Acaa2) was decreased, while the expression level of genes related to glucose metabolism (Glut 1) was upregulated after delipation. In conclusion, the reduction of lipids in pig oocytes will affect the developmental competence of pig PA embryos by disturbed energy metabolism and ROS stress.
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Affiliation(s)
- C Wang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - Y Niu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - D Chi
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - Y Zeng
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - H Liu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - Y Dai
- State Key Laboratory for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - J Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
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Curry E, Cheraghchi-Bashi-Astaneh A, Chen M, Cunnea P, De Sousa C, Maginn E, Dai Y, Liu E, Wasan H, Mills G, Bowtell D, Gabra H, Stronach EA. Abstract AS20: DNA-PKcs is amplified in high grade serous ovarian cancer (HGSC), correlates with poor outcome and drives resistance to platinum therapy via the AKT signaling pathway. Clin Cancer Res 2015. [DOI: 10.1158/1557-3265.ovcasymp14-as20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
High grade serous ovarian cancer is typified by p53 mutation, high degrees of genomic instability and the development of chemo-resistance. Genomic translocations result from incorrectly repaired DNA double strand breaks (DSBs). DNA-PKcs is a central catalytic component of the error prone non-homologous end joining (NHEJ) DSB repair mechanism. We report here that DNA-PKcs is frequently amplified in copy number in HGSC and that amplification correlates with higher DNA-PKcs gene expression and poorer patient outcome (PFS/OS) using both in-house and publicly available datasets (TCGA). Targeting DNA-PKcs, pharmacologically or by RNAi, enhances apoptosis in response to platinum treatment in platinum resistant cell lines and primary models. Furthermore we report that inhibition of DNA-PK restores response to cisplatin in chemoresistant ovarian cancer cells in vivo. SKOV-3 tumor xenografts were implanted subcutaneously into Balb/c Nu/Nu mice and treated with DNA-PKcs inhibitor NU7441 for 2 weeks alone or in combination with cisplatin. DNA-PK inhibition or cisplatin treatment alone were ineffective however in combination they decreased tumor growth at 14 days by 90%, relative to platinum only treatment. On investigating the mechanism of DNA-PKcs mediated chemoresistance we revealed that, in response to DNA damage, DNA-PKcs phosphorylates AKT on serine residue 473 in the nucleus of platinum resistant ovarian tumor cells, but not sensitive cells from the same patient. Phosphorylation at AKT threonine 308 is unaffected and DNA-PK inhibition does not interfere with insulin-mediated phosphorylation of AKT S473. DNA-PK mediated AKT activation in chemoresistant cells results in inhibitory phosphorylation of the pro-apoptotic protein BAD and stabilisation of the anti-apoptotic Bcl-2 protein resulting in the observed attenuation of apoptotic response to platinum treatment. DNA-PK inhibition is an attractive therapeutic strategy for resensitising resistant tumors to platinum based therapy, directly linking the DNA damage caused by platinum to the pro-survival AKT pathway, without interfering with normal physiological roles of AKT.
Citation Format: Curry E, Cheraghchi-Bashi-Astaneh A, Chen M, Cunnea P, De Sousa C, Maginn E, Dai Y, Liu E, Wasan H, Mills G, Bowtell D, Gabra H & Stronach EA. DNA-PKcs is amplified in high grade serous ovarian cancer (HGSC), correlates with poor outcome and drives resistance to platinum therapy via the AKT signaling pathway [abstract]. In: Proceedings of the 10th Biennial Ovarian Cancer Research Symposium; Sep 8-9, 2014; Seattle, WA. Philadelphia (PA): AACR; Clin Cancer Res 2015;21(16 Suppl):Abstract nr AS20.
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Affiliation(s)
- E Curry
- 1Molecular Therapy Lab, Ovarian Cancer Action Research Centre, Imperial College London, UK,
| | | | - M Chen
- 1Molecular Therapy Lab, Ovarian Cancer Action Research Centre, Imperial College London, UK,
| | - P Cunnea
- 1Molecular Therapy Lab, Ovarian Cancer Action Research Centre, Imperial College London, UK,
| | - C De Sousa
- 1Molecular Therapy Lab, Ovarian Cancer Action Research Centre, Imperial College London, UK,
| | - E Maginn
- 1Molecular Therapy Lab, Ovarian Cancer Action Research Centre, Imperial College London, UK,
| | - Y Dai
- 1Molecular Therapy Lab, Ovarian Cancer Action Research Centre, Imperial College London, UK,
| | - E Liu
- 2The Jackson Laboratory, Sacramento, CA, USA,
| | - H Wasan
- 1Molecular Therapy Lab, Ovarian Cancer Action Research Centre, Imperial College London, UK,
| | - G Mills
- 3MD Anderson Cancer Centre, Houston, TX, USA,
| | - D Bowtell
- 4Peter MacCallum Cancer Centre, University of Melbourne, Austrlia
| | - H Gabra
- 1Molecular Therapy Lab, Ovarian Cancer Action Research Centre, Imperial College London, UK,
| | - EA Stronach
- 1Molecular Therapy Lab, Ovarian Cancer Action Research Centre, Imperial College London, UK,
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Pan CB, Zha FX, Song YX, Shao J, Dai Y, Chen XR, Ye JY, Wang SM. Spectral and spatial resolving of photoelectric property of femtosecond laser drilled holes of GaSb(1-x)Bi(x). Opt Lett 2015; 40:3392-3395. [PMID: 26176477 DOI: 10.1364/ol.40.003392] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Femtosecond laser drilled holes of GaSbBi were characterized by the joint measurements of photoconductivity (PC) spectroscopy and laser-beam-induced current (LBIC) mapping. The excitation light in PC was focused down to 60 μm presenting the spectral information of local electronic property of individual holes. A redshift of energy band edge of about 6-8 meV was observed by the PC measurement when the excitation light irradiated on the laser drilled holes. The spatial resolving of photoelectric property was achieved by the LBIC mapping which shows "pseudo-holes" with much larger dimensions than the geometric sizes of the holes. The reduced LBIC current with the pseudo-holes is associated with the redshift effect indicating that the electronic property of the rim areas of the holes is modified by the femtosecond laser drilling.
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Aleo CL, Murchison AP, Dai Y, Hark LA, Mayro EL, Collymore B, Haller JA. Improving eye care follow-up adherence in diabetic patients with ocular abnormalities: the effectiveness of patient contracts in a free, pharmacy-based eye screening. Public Health 2015; 129:996-9. [PMID: 26119987 DOI: 10.1016/j.puhe.2015.05.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Revised: 03/04/2015] [Accepted: 05/13/2015] [Indexed: 12/01/2022]
Abstract
OBJECTIVES Patient contracts are increasingly utilized in medical practice and have the potential to improve health outcomes in high-risk populations. However, as a relatively new tool, there has been limited research regarding the efficacy of patient contracts. Diabetic retinopathy (DR) is one of the leading causes of vision impairment in adults in the US and only 50-60% of adults with diabetes adhere to annual dilated fundus exam recommendations. This study aimed to evaluate the impact of patient contracts on follow-up adherence in diabetic patients with ocular abnormalities after a free, pharmacy-based eye screening. STUDY DESIGN This prospective study implemented a non-invasive, non-mydriatic fundus camera in an urban, community-based pharmacy setting to screen for ocular diseases in patients with diabetes. Patients were assigned to the contract or non-contract group. Patients who signed a contract agreed to: 1) review their results with their primary care doctor, 2) follow-up with an ophthalmologist if their results were abnormal, and 3) inform research staff if/when they completed an eye care appointment. All study participants and their primary care doctors were notified of their results via mail. Follow-up questionnaires were administered to all patients by telephone three months after the screening results. RESULTS 500 patients were screened and 113 (22.6%) had abnormal results. Of the patients who had abnormal results, 83 (74.3%) were able to be contacted. Of the 83 patients who were able to be contacted, the majority of patients were African American (73.5%) and female (56.6%). The mean age was 54.7 years. Of those, 34 (41.0%) adhered to follow-up recommendations. There was no significant difference in follow-up adherence between the contract (38.1%) and non-contract group (43.9%) (P = 0.59). In addition, 70.4% of patients did not comply with at least one measure of the contract agreement. CONCLUSION Contracts did not increase follow-up adherence to eye appointments in diabetic patients with ocular abnormalities. The majority of patients did not comply with their contract and follow-up adherence was low in both groups. Most research has yielded mixed results regarding the efficacy of contracts in improving health outcomes. Therefore, different types of contracts or other patient-centered tools should be evaluated in order to increase follow-up adherence in patients at high risk for DR.
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Affiliation(s)
- C L Aleo
- Wills Eye Hospital, Research, 840 Walnut Street, Suite 802, Philadelphia, PA 19107, USA.
| | - A P Murchison
- Wills Eye Hospital, Emergency Department, 840 Walnut Street, Suite 802, Philadelphia, PA 19107, USA
| | - Y Dai
- Wills Eye Hospital, Research, 840 Walnut Street, Suite 802, Philadelphia, PA 19107, USA
| | - L A Hark
- Research Department and Glaucoma, Research Center, Wills Eye Hospital, 840 Walnut Street, Suite 802, Philadelphia, PA 19107, USA
| | - E L Mayro
- Wills Eye Hospital, Research, 840 Walnut Street, Suite 802, Philadelphia, PA 19107, USA
| | - B Collymore
- Wills Eye Hospital, Research, 840 Walnut Street, Suite 802, Philadelphia, PA 19107, USA
| | - J A Haller
- Wills Eye Hospital, 840 Walnut Street 1510, Philadelphia, PA 19107, USA
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144
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Zhang L, Sun J, Liu Z, Dai Y, Luo Z, Jiang X, Li Z, Li Y, Cao P, Zhou Y, Zeng Z, Tang A, Li X, Li X, Xiang J, Li G. Mesenchymal stem cells regulate cytoskeletal dynamics and promote cancer cell invasion through low dose nitric oxide. Curr Mol Med 2015; 14:749-61. [PMID: 24894170 DOI: 10.2174/1566524014666140724102301] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Revised: 02/14/2014] [Accepted: 02/19/2014] [Indexed: 12/15/2022]
Abstract
Bone marrow-derived mesenchymal stem cells (BMSCs) can be recruited to tumor sites and integrate into the stroma of tumors. When co-cultured with BMSCs, otherwise weakly metastatic nasopharyngeal carcinoma cells (NPC) showed improved metastatic ability. BMSCs in the tumor environment displayed the characteristics of macrophages. Nitric oxide produced by BMSCs in tumor environment could translocate caldesmon to podosome in Ca2+/calmodulin manner and promoted metastatic ability of NPC cells through invadopodia formation, with which the NPC cells degrade the extracellular matrix. Thus, we concluded that the BMSCs promoted cell migration and invasion through nitric oxide-induced paracrine signals.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - G Li
- (J. Xiang) Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan, P.R. China.
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145
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Smith EN, Ghia EM, DeBoever CM, Rassenti LZ, Jepsen K, Yoon KA, Matsui H, Rozenzhak S, Alakus H, Shepard PJ, Dai Y, Khosroheidari M, Bina M, Gunderson KL, Messer K, Muthuswamy L, Hudson TJ, Harismendy O, Barrett CL, Jamieson CHM, Carson DA, Kipps TJ, Frazer KA. Genetic and epigenetic profiling of CLL disease progression reveals limited somatic evolution and suggests a relationship to memory-cell development. Blood Cancer J 2015; 5:e303. [PMID: 25860294 PMCID: PMC4450323 DOI: 10.1038/bcj.2015.14] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Accepted: 02/02/2015] [Indexed: 01/01/2023] Open
Abstract
We examined genetic and epigenetic changes that occur during disease progression from indolent to aggressive forms of chronic lymphocytic leukemia (CLL) using serial samples from 27 patients. Analysis of DNA mutations grouped the leukemia cases into three categories: evolving (26%), expanding (26%) and static (47%). Thus, approximately three-quarters of the CLL cases had little to no genetic subclonal evolution. However, we identified significant recurrent DNA methylation changes during progression at 4752 CpGs enriched for regions near Polycomb 2 repressive complex (PRC2) targets. Progression-associated CpGs near the PRC2 targets undergo methylation changes in the same direction during disease progression as during normal development from naive to memory B cells. Our study shows that CLL progression does not typically occur via subclonal evolution, but that certain CpG sites undergo recurrent methylation changes. Our results suggest CLL progression may involve developmental processes shared in common with the generation of normal memory B cells.
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Affiliation(s)
- E N Smith
- 1] Pediatrics and Rady's Children's Hospital, University of California at San Diego, La Jolla, CA, USA [2] Moores Cancer Center, University of California at San Diego, La Jolla, CA, USA
| | - E M Ghia
- 1] Moores Cancer Center, University of California at San Diego, La Jolla, CA, USA [2] Department of Medicine, University of California at San Diego, La Jolla, CA, USA
| | - C M DeBoever
- Bioinformatics and Systems Biology Program, University of California at San Diego, La Jolla, CA, USA
| | - L Z Rassenti
- 1] Moores Cancer Center, University of California at San Diego, La Jolla, CA, USA [2] Department of Medicine, University of California at San Diego, La Jolla, CA, USA
| | - K Jepsen
- Institute for Genomic Medicine, University of California at San Diego, La Jolla, CA, USA
| | - K-A Yoon
- Pediatrics and Rady's Children's Hospital, University of California at San Diego, La Jolla, CA, USA
| | - H Matsui
- 1] Pediatrics and Rady's Children's Hospital, University of California at San Diego, La Jolla, CA, USA [2] Institute for Genomic Medicine, University of California at San Diego, La Jolla, CA, USA
| | - S Rozenzhak
- 1] Pediatrics and Rady's Children's Hospital, University of California at San Diego, La Jolla, CA, USA [2] Moores Cancer Center, University of California at San Diego, La Jolla, CA, USA
| | - H Alakus
- 1] Pediatrics and Rady's Children's Hospital, University of California at San Diego, La Jolla, CA, USA [2] Moores Cancer Center, University of California at San Diego, La Jolla, CA, USA
| | - P J Shepard
- 1] Pediatrics and Rady's Children's Hospital, University of California at San Diego, La Jolla, CA, USA [2] Moores Cancer Center, University of California at San Diego, La Jolla, CA, USA
| | - Y Dai
- 1] Pediatrics and Rady's Children's Hospital, University of California at San Diego, La Jolla, CA, USA [2] Moores Cancer Center, University of California at San Diego, La Jolla, CA, USA
| | - M Khosroheidari
- Institute for Genomic Medicine, University of California at San Diego, La Jolla, CA, USA
| | - M Bina
- Department of Chemistry, Purdue University, West Lafayette, IN, USA
| | - K L Gunderson
- Illumina, Inc., 5200 Illumina Way, San Diego, CA, USA
| | - K Messer
- Moores Cancer Center, University of California at San Diego, La Jolla, CA, USA
| | - L Muthuswamy
- 1] Ontario Institute for Cancer Research, Toronto, Ontario, Canada [2] Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
| | - T J Hudson
- 1] Ontario Institute for Cancer Research, Toronto, Ontario, Canada [2] Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada [3] Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - O Harismendy
- 1] Pediatrics and Rady's Children's Hospital, University of California at San Diego, La Jolla, CA, USA [2] Moores Cancer Center, University of California at San Diego, La Jolla, CA, USA
| | - C L Barrett
- 1] Pediatrics and Rady's Children's Hospital, University of California at San Diego, La Jolla, CA, USA [2] Moores Cancer Center, University of California at San Diego, La Jolla, CA, USA
| | - C H M Jamieson
- 1] Moores Cancer Center, University of California at San Diego, La Jolla, CA, USA [2] Department of Medicine, University of California at San Diego, La Jolla, CA, USA [3] Stem Cell Program, University of California San Diego, La Jolla, CA, USA
| | - D A Carson
- 1] Moores Cancer Center, University of California at San Diego, La Jolla, CA, USA [2] Department of Medicine, University of California at San Diego, La Jolla, CA, USA
| | - T J Kipps
- 1] Moores Cancer Center, University of California at San Diego, La Jolla, CA, USA [2] Department of Medicine, University of California at San Diego, La Jolla, CA, USA
| | - K A Frazer
- 1] Pediatrics and Rady's Children's Hospital, University of California at San Diego, La Jolla, CA, USA [2] Moores Cancer Center, University of California at San Diego, La Jolla, CA, USA [3] Bioinformatics and Systems Biology Program, University of California at San Diego, La Jolla, CA, USA [4] Institute for Genomic Medicine, University of California at San Diego, La Jolla, CA, USA
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146
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Gao XH, Gao R, Tian YZ, McGonigle P, Barrett JE, Dai Y, Hu H. A store-operated calcium channel inhibitor attenuates collagen-induced arthritis. Br J Pharmacol 2015; 172:2991-3002. [PMID: 25651822 DOI: 10.1111/bph.13104] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2014] [Revised: 01/20/2015] [Accepted: 01/27/2015] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND AND PURPOSE Store-operated calcium (SOC) channels are thought to play a critical role in immune responses, inflammatory diseases and chronic pain. The aim of this study was to explore the potential role and mechanisms of SOC channels in collagen-induced arthritis (CIA). EXPERIMENTAL APPROACH The CIA mouse model was used to examine the effects of the SOC channel inhibitor YM-58483 on CIA and arthritic pain. Hargreaves' and von Frey hair tests were conducted to measure thermal and mechanical sensitivities of hind paws. elisa was performed to measure cytokine production, and haematoxylin and eosin staining was used to assess knee histological changes. Western blot analysis was performed to examine protein levels. KEY RESULTS Pretreatment with 5 or 10 mg · kg(-1) of YM-58483 reduced the incidence of CIA, prevented the development of inflammation and pain hypersensitivity and other signs and features of arthritis disease. Similarly, treatment with YM-58483 after the onset of CIA: (i) reversed the clinical scores; (ii) reduced paw oedema; (iii) attenuated mechanical and thermal hypersensitivity; (iv) improved spontaneous motor activity; (v) decreased periphery production of IL-1β, IL-6 and TNF-α; and (vi) reduced spinal activation of ERK and calmodulin-dependent PKII (CaMKIIα). CONCLUSIONS AND IMPLICATIONS This study provides the first evidence that inhibition of SOC entry prevents and relieves rheumatoid arthritis (RA) and arthritic pain. These effects are probably mediated by a reduction in cytokine levels in the periphery and activation of ERK and CaMKIIα in the spinal cord. These results suggest that SOC channels are potential drug targets for the treatment of RA.
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Affiliation(s)
- X H Gao
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, PA, USA.,Department of Pharmacology of Chinese Materia Medica, China Pharmaceutical University, Nanjing, China
| | - R Gao
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, PA, USA
| | - Y Z Tian
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, PA, USA
| | - P McGonigle
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, PA, USA
| | - J E Barrett
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, PA, USA
| | - Y Dai
- Department of Pharmacology of Chinese Materia Medica, China Pharmaceutical University, Nanjing, China
| | - H Hu
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, PA, USA
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147
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Abstract
Embryonic mice have been used widely to study organ development. Days 14-16 are critical for sex organ development and differentiation in mice. Current methods for sex identification are limited. Even the simplest polymerase chain reaction method may injure the embryo. We determined that morphologic analysis of embryonic mammary anlagen could be used for rapid atraumatic sex identification of day 14-16 mice. The accuracy of our method was verified by molecular and anatomical approaches.
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Affiliation(s)
- J Song
- College of Basic Medical Sciences, Dalian Medical University , Dalian
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148
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Ali A, Zhang P, Liangfang Y, Wenshe S, Wang H, Lin X, Dai Y, Feng XH, Moses R, Wang D, Li X, Xiao J. KLF17 empowers TGF-β/Smad signaling by targeting Smad3-dependent pathway to suppress tumor growth and metastasis during cancer progression. Cell Death Dis 2015; 6:e1681. [PMID: 25766320 PMCID: PMC4385926 DOI: 10.1038/cddis.2015.48] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Revised: 01/01/2015] [Accepted: 01/19/2015] [Indexed: 02/06/2023]
Abstract
Inhibition of tumor suppressive signaling is linked to cancer progression, metastasis and epithelial–mesenchymal transition (EMT). Transforming growth factor-β1 (TGF-β)/Smad signaling plays an important role in tumor suppression. Kruppel-like-factor 17 (KLF17) is a negative regulator of metastasis and EMT. However, underlying mechanisms leading to tumor suppressive and anti-metastatic function of KLF17 still remains unknown. Here, we show that KLF17 plays an integral role in potentiating TGF-β/Smad signaling via Smad3-dependent pathway to suppress tumor progression. Intriguingly, TGF-β/Smad3 signaling induces KLF17 expression, generating a positive feedback loop. TGF-β/Smad3–KLF17 loop is critical for anti-metastasis and tumor inhibition in cancer cells. Mechanistically, silencing KLF17 reduced Smad3–DNA complex formation on Smad binding element (SBE) and affects the expression of TGF-β/Smad target genes. Moreover, KLF17 alters Smad3 binding pattern on chromatin. KLF17 regulates TGF-β target genes that are Smad3-dependent. Smad3 and KLF17 physically interact with each other via KLF17 responsive elements/SBE region. Intriguingly, TGF-β stimulates the recruitment of KLF17 on chromatin to subsets of metastasis-associated genes. Functionally, depletion of KLF17 enhanced tumorigenic features in cancer cells. KLF17 is critical for full cytostatic function of TGF-β/Smad signaling. Clinically, KLF17 expression significantly decreases during advance HCC. KLF17 shows positive correlation with Smad3 levels in cancer samples. Our data shows that enhance KLF17 activity has important therapeutic implications for targeted-therapies aimed at TGF-β/Smad3 pathway. These findings define novel mechanism by which TGF-β/Smad–KLF17 pathway mutually affect each other during cancer metastasis, provide a new model of regulation of TGF-β/Smad signaling by KLF17 and defines new insights into anti-metastatic function of KLF17.
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Affiliation(s)
- A Ali
- 1] Nortern Jiangsu People's Hospital (Medical College of Yangzhou University), Yangzhou, Jiangsu 225001, China [2] Shanghai Key Laboratory of Regulatory Biology, Key Laboratory of Brain Functional Genomics (Ministry of Education), Shanghai Key Laboratory of Brain Functional Genomics, Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - P Zhang
- Department of Pathology, the Second Chengdu Municipal Hospital, Chengdu, Sichuan 610017, China
| | - Y Liangfang
- Shanghai Key Laboratory of Regulatory Biology, Key Laboratory of Brain Functional Genomics (Ministry of Education), Shanghai Key Laboratory of Brain Functional Genomics, Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - S Wenshe
- Shanghai Key Laboratory of Regulatory Biology, Key Laboratory of Brain Functional Genomics (Ministry of Education), Shanghai Key Laboratory of Brain Functional Genomics, Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - H Wang
- Shanghai Key Laboratory of Regulatory Biology, Key Laboratory of Brain Functional Genomics (Ministry of Education), Shanghai Key Laboratory of Brain Functional Genomics, Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - X Lin
- Department of Molecular and Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Y Dai
- Nortern Jiangsu People's Hospital (Medical College of Yangzhou University), Yangzhou, Jiangsu 225001, China
| | - X-h Feng
- Department of Molecular and Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - R Moses
- Department of Molecular and Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - D Wang
- Nortern Jiangsu People's Hospital (Medical College of Yangzhou University), Yangzhou, Jiangsu 225001, China
| | - X Li
- Department of Molecular and Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - J Xiao
- Department of Orthopedic Oncology, Changzheng Hospital, The Second Military Medical University, 415 Fengyang Road, Shanghai 200003, China
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Iwase H, Ekser B, Satyananda V, Zhou H, Hara H, Bajona P, Wijkstrom M, Bhama JK, Long C, Veroux M, Wang Y, Dai Y, Phelps C, Ayares D, Ezzelarab MB, Cooper DKC. Initial in vivo experience of pig artery patch transplantation in baboons using mutant MHC (CIITA-DN) pigs. Transpl Immunol 2015; 32:99-108. [PMID: 25687023 PMCID: PMC4368496 DOI: 10.1016/j.trim.2015.02.003] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 02/03/2015] [Accepted: 02/05/2015] [Indexed: 12/30/2022]
Abstract
BACKGROUND In the pig-to-nonimmunosuppressed baboon artery patch model, a graft from an α1,3-galactosyltransferase gene-knockout pig transgenic for human CD46 (GTKO/CD46) induces a significant adaptive immune response (elicited anti-pig antibody response, increase in T cell proliferation on MLR, cellular infiltration of the graft), which is effectively prevented by anti-CD154mAb-based therapy. METHODS As anti-CD154mAb is currently not clinically applicable, we evaluated whether it could be replaced by CD28/B7 pathway blockade or by blockade of both pathways (using belatacept + anti-CD40mAb [2C10R4]). We further investigated whether a patch from a GTKO/CD46 pig with a mutant human MHC class II transactivator (CIITA-DN) gene would allow reduction in the immunosuppressive therapy administered. RESULTS When grafts from GTKO/CD46 pigs were transplanted with blockade of both pathways, a minimal or insignificant adaptive response was documented. When a GTKO/CD46/CIITA-DN graft was transplanted, but no immunosuppressive therapy was administered, a marked adaptive response was documented. In the presence of CD28/B7 pathway blockade (abatacept or belatacept), there was a weak adaptive response that was diminished when compared with that to a GTKO/CD46 graft. Blockade of both pathways prevented an adaptive response. CONCLUSION Although expression of the mutant MHC CIITA-DN gene was associated with a reduced adaptive immune response when immunosuppressive therapy was inadequate, when blockade of both the CD40/CD154 and CD28/B7 pathways was present, the response even to a GTKO/CD46 graft was suppressed. This was confirmed after GTKO/CD46 heart transplantation in baboons.
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Affiliation(s)
- H Iwase
- Thomas E Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, PA, USA
| | - B Ekser
- Thomas E Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, PA, USA; Department of Surgery, Transplantation and Advanced Technologies, Vascular Surgery and Organ Transplant Unit, University Hospital of Catania, Catania, Italy
| | - V Satyananda
- Thomas E Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, PA, USA
| | - H Zhou
- Thomas E Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, PA, USA; Center for Kidney Transplantation, Second Affiliated Hospital of the University of South China, Hengyang, Hunan, China
| | - H Hara
- Thomas E Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, PA, USA
| | - P Bajona
- Thomas E Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, PA, USA
| | - M Wijkstrom
- Thomas E Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, PA, USA
| | - J K Bhama
- Department of Cardiac Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - C Long
- Thomas E Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, PA, USA
| | - M Veroux
- Department of Surgery, Transplantation and Advanced Technologies, Vascular Surgery and Organ Transplant Unit, University Hospital of Catania, Catania, Italy
| | - Y Wang
- Center for Kidney Transplantation, Second Affiliated Hospital of the University of South China, Hengyang, Hunan, China
| | - Y Dai
- Revivicor, Blacksburg, VA, USA
| | | | | | - M B Ezzelarab
- Thomas E Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, PA, USA
| | - D K C Cooper
- Thomas E Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, PA, USA.
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150
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Deng X, Su Y, Wu H, Wu R, Zhang P, Dai Y, Chan TM, Zhao M, Lu Q. The Role of MicroRNAs in Autoimmune Diseases with Skin Involvement. Scand J Immunol 2015; 81:153-65. [PMID: 25430682 DOI: 10.1111/sji.12261] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2014] [Accepted: 11/10/2014] [Indexed: 11/26/2022]
Affiliation(s)
- X. Deng
- Hunan Key Laboratory of Medical Epigenetics; Department of Dermatology; Second Xiangya Hospital; Central South University; Changsha Hunan China
| | - Y. Su
- Hunan Key Laboratory of Medical Epigenetics; Department of Dermatology; Second Xiangya Hospital; Central South University; Changsha Hunan China
| | - H. Wu
- Hunan Key Laboratory of Medical Epigenetics; Department of Dermatology; Second Xiangya Hospital; Central South University; Changsha Hunan China
| | - R. Wu
- Hunan Key Laboratory of Medical Epigenetics; Department of Dermatology; Second Xiangya Hospital; Central South University; Changsha Hunan China
| | - P. Zhang
- Hunan Key Laboratory of Medical Epigenetics; Department of Dermatology; Second Xiangya Hospital; Central South University; Changsha Hunan China
| | - Y. Dai
- Clinical Medical Research Center; The Second Clinical Medical College of Jinan University (Shenzhen People's Hospital); Shenzhen Guangdong China
| | - T.-M. Chan
- Division of Nephrology; Department of Medicine; Queen Mary Hospital; University of Hong Kong; Hong Kong China
| | - M. Zhao
- Hunan Key Laboratory of Medical Epigenetics; Department of Dermatology; Second Xiangya Hospital; Central South University; Changsha Hunan China
| | - Q. Lu
- Hunan Key Laboratory of Medical Epigenetics; Department of Dermatology; Second Xiangya Hospital; Central South University; Changsha Hunan China
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