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Liu L, Li J, Zuo L, Zhang J, Zhou M, Xu B, Hahn RT, Leon MB, Hsi DH, Ge J, Zhou X, Zhang J, Ge S, Xiong L. Percutaneous Intramyocardial Septal Radiofrequency Ablation for Hypertrophic Obstructive Cardiomyopathy. J Am Coll Cardiol 2019; 72:1898-1909. [PMID: 30309466 DOI: 10.1016/j.jacc.2018.07.080] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 07/17/2018] [Accepted: 07/23/2018] [Indexed: 10/28/2022]
Abstract
BACKGROUND In patients with disabling symptoms caused by hypertrophic obstructive cardiomyopathy (HOCM), echocardiography-guided percutaneous intramyocardial septal radiofrequency ablation (PIMSRA) could be a less invasive treatment option. OBJECTIVES This study aimed to investigate the safety and efficacy of the PIMSRA for left ventricular outflow tract (LVOT) gradient reduction in HOCM. METHODS The study enrolled 15 patients with HOCM. These patients underwent electrocardiography, imaging, and blood biochemistry examination over 6 months of follow-up. RESULTS At 6 months of follow-up, patients showed significant reductions in peak LVOT gradients (resting gradient: from 88.00 [66.00] mm Hg to 11.00 [6.00] mm Hg; p = 0.001; stress-induced gradient: from 117.00 [81.00] mm Hg to 25.00 [20.00] mm Hg; p = 0.005) and interventricular septum (IVS) thickness (anterior IVS: from 25.00 [21.00] mm to 14.00 [12.00] mm; p = 0.001; posterior IVS: from 24.00 [21.00] mm to 14.00 [11.50] mm; p = 0.001). The reductions in IVS thickness and LVOT gradients were associated with improvement in New York Heart Association functional classification (from 3.00 [2.00] to 1.00 [1.00]; p < 0.001), total exercise time (from 6.00 [5.50] min to 9.00 [8.00] min; p = 0.007), and pro B-type natriuretic peptide levels (from 924.00 [370.45] pg/ml to 137.45 [75.73] pg/ml; p = 0.028). No patient had bundle branch block or complete heart block. CONCLUSIONS PIMSRA is a safe and effective treatment approach for severe, symptomatic HOCM and results in sustained improvement in exercise capacity, persistent reduction in LVOT gradient, and sustained improvement in cardiac function.
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Affiliation(s)
- Liwen Liu
- Xijing Hypertrophic Cardiomyopathy Center, Department of Ultrasound, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China.
| | - Jing Li
- Xijing Hypertrophic Cardiomyopathy Center, Department of Ultrasound, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Lei Zuo
- Xijing Hypertrophic Cardiomyopathy Center, Department of Ultrasound, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Jinzhou Zhang
- Xijing Hypertrophic Cardiomyopathy Center, Department of Cardiac Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Mengyao Zhou
- Xijing Hypertrophic Cardiomyopathy Center, Department of Ultrasound, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Bo Xu
- Xijing Hypertrophic Cardiomyopathy Center, Department of Cardiac Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Rebeccca T Hahn
- Columbia University Medical Center/New York Presbyterian Hospital, New York, New York
| | - Martin B Leon
- Columbia University Medical Center/New York Presbyterian Hospital, New York, New York
| | - David H Hsi
- Heart & Vascular Institute, Stamford Hospital, Stamford, Connecticut
| | - Junbo Ge
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Shanghai Medical College of Fudan University, Shanghai, China
| | - Xiaodong Zhou
- Xijing Hypertrophic Cardiomyopathy Center, Department of Ultrasound, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Jun Zhang
- Xijing Hypertrophic Cardiomyopathy Center, Department of Ultrasound, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Shuping Ge
- Department of Cardiology, St. Christopher's Hospital for Children, Drexel University College of Medicine, Philadelphia, Pennsylvania
| | - Lize Xiong
- Xijing Hypertrophic Cardiomyopathy Center, Department of Anesthesiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China.
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Liu L, Liu X, Dong Z, Li J, Yu Y, Chen X, Ren F, Cui G, Sun R. N6-methyladenosine-related Genomic Targets are Altered in Breast Cancer Tissue and Associated with Poor Survival. J Cancer 2019; 10:5447-5459. [PMID: 31632489 PMCID: PMC6775703 DOI: 10.7150/jca.35053] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [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: 03/19/2019] [Accepted: 08/12/2019] [Indexed: 12/28/2022] Open
Abstract
Purpose: The ectopic expression of N6-methyladenosine (m6A) associated genes is a common feature of multiple tumors. However, little is known about the expression status and the prognostic value of these genes in human breast cancer (BRC). Herein, we conducted a comprehensive analysis to identify the expression profiling and clinical significance of m6A-related genomic targets in BRC. Materials and Methods: The expression data including 1109 BRC tissues and 113 normal breast tissues were obtained from The Cancer Genome Atlas (TCGA) database to evaluate the mRNA expression levels of m6A-related genomic targets. In addition, 6 independent BRCA cohorts retrieved from the Gene Expression Omnibus (GEO) database were enrolled to further ascertain the expression profiling of m6A-related genomic targets. Meanwhile, the immunohistochemical (IHC) staining data from BRC tissue microarray (TMA) cohort and the Human Protein Atlas (HPA) database were used to evaluate the proteomic expression of m6A-related genomic targets. Immunofluorescence (IF) analysis was performed to validate the subcellular location of m6A-related genomic targets. Moreover, the prognostic value of m6A-related genomic targets in BRC was analyzed by Kaplan-Meier analysis and Cox regression models. Results: m6A-related genomic targets were differentially expressed in BRC tissues. TMA IHC staining showed that most of the m6A-related genomic targets were significantly altered at the protein level (either upregulated or downregulated), consistent with their changes in the genomic profile. IF analysis showed the subcellular location of m6A-related genomic targets in BRC cell lines. Furthermore, we demonstrated that overexpression of YTHDF1 (P=0.049), YTHDF3 (P<0.001) and KIAA1429 (P=0.032) predicted poor prognosis in terms of overall survival (OS). Upregulation of YTHDF3 was an independent prognostic factor for OS in patients with BRC (P=0.036). Conclusion: m6A-related genomic targets are significantly altered in BRC and predict poor prognosis. These m6A-related genomic targets could serve as novel prognostic biomarkers for BRC.
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Affiliation(s)
- Liwen Liu
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.,Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Xin Liu
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.,Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Zihui Dong
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.,Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Jianhao Li
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.,Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Yan Yu
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.,Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Xiaolong Chen
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.,Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Fang Ren
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Guangying Cui
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.,Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Ranran Sun
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.,Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.,National Engineering Laboratory for Internet Medical System and Application, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
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Ju Y, Wang L, Ta S, Shu R, Yang S, Gao X, Song H, Liu L. A germline alteration of ERBB2 increases the risk of breast cancer in Chinese Han women with a familial history of malignant tumors. Oncol Lett 2019; 18:2885-2890. [PMID: 31452768 PMCID: PMC6704318 DOI: 10.3892/ol.2019.10646] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 06/07/2019] [Indexed: 11/06/2022] Open
Abstract
Previous studies have demonstrated that a family history of breast cancer is considered a risk factor, and hereditary factors may be involved in breast cancer pathogenesis. Next-generation sequencing techniques were used to analyze 111 cancer-associated genes in patients with breast cancer with a familial history of malignant tumors in the pre-experiment and a novel variant, receptor tyrosine-protein kinase erbB-2 (ERBB2) c.338G>A: p.R113Q was identified in two cases of breast cancer. ERBB2 is considered an important oncogene, and overexpression or mutation of the ERBB2 gene may lead to the occurrence or metastasis of tumors. To assess a potential association between rs185670819 and breast cancer, 117 patients with breast cancer and a familial history of any cancer, who were diagnosed by experienced pathologists at the Xijing Hospital (Shaanxi, China) between July 2015 and December 2016, were recruited. The presence of the missense variant was confirmed using bi-directional Sanger sequencing of samples from the patients with breast cancer and 250 healthy controls. The effects of the missense mutation on the structure and function of ERBB2 were analyzed in silico. The missense variant, R113Q, in patients with breast cancer with a familial history of malignant tumors in China, was present in 8 patients [6.8% (95% CI: 3.21–13.45)] and 3 of 250 healthy controls [1.2% (95% CI: 0.31–3.76; OR=6.04, 95% CI: 1.573–23.214, P=0.009)]. Of the 8 patients with the R113Q variant, 6 patients had a family history of cancer of the digestive system. The present study suggests that ERBB2 c.338G>A: p.R113Q may be a potential risk factor in the development and progression of breast cancer.
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Affiliation(s)
- Yan Ju
- Department of Ultrasonic Medicine, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Lifeng Wang
- Department of Biochemistry and Molecular Biology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Shengjun Ta
- Department of Ultrasound, Yan'an People's Hospital, Yan'an, Shaanxi 716000, P.R. China
| | - Rui Shu
- Department of Ultrasonic Medicine, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Shanling Yang
- Department of Ultrasonic Medicine, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Xican Gao
- Department of Ultrasonic Medicine, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Hongping Song
- Department of Ultrasonic Medicine, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Liwen Liu
- Department of Ultrasonic Medicine, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
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Liu X, Liu L, Dong Z, Li J, Yu Y, Chen X, Ren F, Cui G, Sun R. Expression patterns and prognostic value of m 6A-related genes in colorectal cancer. Am J Transl Res 2019; 11:3972-3991. [PMID: 31396313 PMCID: PMC6684930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 05/29/2019] [Indexed: 06/10/2023]
Abstract
Colorectal cancer (CRC), including colon adenocarcinoma (COAD) and rectal adenocarcinoma (READ), is one of the most prevalent malignancies worldwide. N6-methyladenosine (m6A) is a ubiquitous RNA modification that plays a vital role in human tumors, but its expression patterns and prognostic value in CRC have not yet been determined. Here, we first used the Cancer Genome Atlas (TCGA), the Gene Expression Omnibus (GEO) and the Human Protein Atlas (HPA) databases and a tissue microarray (TMA) cohort to verify the expression of m6A-related genes at the mRNA and protein levels. We found that most m6A-related genes were substantially upregulated in tumor tissues compared with normal tissues, but METTL14, YTHDF3 and ALKBH5 were downregulated in CRC. There was no obvious difference in FTO. In addition, WTAP, METTL16, HNRNPC and YTHDC1 were abundantly expressed in COAD but not in READ. Moreover, immunofluorescence (IF) analyses of SW480 and HCT116 cells showed that most of the m6A-related proteins were expressed in the nucleus and cytoplasm. Survival analysis demonstrated that the expression levels of METTL3, METTL14, METTL16, FTO and ALKBH5 were associated with the clinical outcomes of CRC patients. Taken together, all the results revealed that m6A-related genes were dysregulated in CRC and might play a significant role in the progression of CRC.
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Affiliation(s)
- Xin Liu
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
| | - Liwen Liu
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
| | - Zihui Dong
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
| | - Jianhao Li
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
| | - Yan Yu
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
| | - Xiaolong Chen
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
| | - Fang Ren
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
| | - Guangying Cui
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
| | - Ranran Sun
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
- National Engineering Laboratory for Internet Medical System and Application, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
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Li J, Liu L, Liu X, Xu P, Hu Q, Yu Y. The Role of Upregulated DDX11 as A Potential Prognostic and Diagnostic Biomarker in Lung Adenocarcinoma. J Cancer 2019; 10:4208-4216. [PMID: 31413739 PMCID: PMC6691710 DOI: 10.7150/jca.33457] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [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: 01/23/2019] [Accepted: 05/19/2019] [Indexed: 12/25/2022] Open
Abstract
Background: Lung adenocarcinoma (ADC) is the main cause of cancer-related mortality in lung cancer patients. DEAD/DEAH box helicase 11 (DDX11) was previously shown to be dysregulated and to exert oncogenic activity in cancer. However, the diagnostic value and clinical significance of DDX11 in ADC remain unknown. Methods: A total of 513 ADC and 59 normal tissue samples were obtained from The Cancer Genome Atlas (TCGA) database, and the mRNA expression level of DDX11 in ADC was evaluated. Additionally, a meta-analysis of 7 ADC cohorts from the Gene Expression Omnibus (GEO) database was conducted to validate the DDX11 expression pattern. Moreover, receiver operating characteristic (ROC) curve analysis was used to identify the diagnostic power of DDX11 in ADC. A tissue microarray (TMA) comprising 86 ADC specimens and their adjacent normal specimens was applied to indicate DDX11 protein expression status. In addition, Kaplan-Meier and Cox regression analyses were conducted to validate the prognostic value of DDX11 in ADC. Finally, the molecular mechanism of DDX11 action in ADC was predicted by gene set enrichment analysis (GSEA). Results: DDX11 was upregulated in ADC tissues and was associated with worse overall survival (OS). ROC curves of DDX11 showed high values for diagnosis. Additionally, DDX11 expression has remarkable correlations with DNA replication and the cell cycle G1-S phase pathway. Consistently, it was associated with cell cycle genes, such as CCNA2, CCNB1, CCNC, CCND1, CCNE1, CDK2, CDK4 and CDK6. Moreover, high CCNA2, CCNB1, CCNE1 and CDK6 expression in ADC patients predicted worse OS and progression-free survival (PFS). Conclusion: DDX11 was significantly upregulated and predicted poor prognosis in ADC. This gene might serve as a potential novel prognostic and diagnostic biomarker for ADC.
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Affiliation(s)
- Jianhao Li
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Liwen Liu
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Xin Liu
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Penglin Xu
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Qiuyue Hu
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Yan Yu
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Huang W, Guan L, Liu L, Mu Y. Apical hypertrophic cardiomyopathy with apical endomyocardial fibrosis and calcification: Two case reports. Medicine (Baltimore) 2019; 98:e16183. [PMID: 31277123 PMCID: PMC6635236 DOI: 10.1097/md.0000000000016183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
RATIONALE Apical hypertrophic cardiomyopathy (AHCM) is a rare form of hypertrophic cardiomyopathy which affects predominantly the apex of the left ventricle. Generally, left ventricular enlargement is not present in AHCM; additionally, endomyocardial fibrosis, and calcification are also rare. PATIENT CONCERNS A 61-year-old female (Case 1) and a 60-year-old female (Case 2) both presented with the symptoms of atypical chest pain, dyspnoea, exercise intolerance, palpitations. DIAGNOSIS Magnetic resonance and single-photon emission computed tomography (SPECT) revealed apical hypertrophic cardiomyopathy. Furthermore, 2D-transthoracic echocardiogram showed left atrium and ventricular enlargement, as well as endomyocardial fibrosis and calcification. Based on these findings, the patients were diagnosed with AHCM. INTERVENTIONS Both the patients were treated with ACEI, metoprolol, and aspirin. Additionally, both these patient underwent genetic test. OUTCOMES The results of the genetic test of the 2 cases for hypertrophic cardiomyopathy (HCM) were negative. However, the gene mutation for dilated cardiomyopathy (TMPO) was detected in one of the cases. No change in condition during follow-up. LESSONS In past reports, Apical hypertrophic cardiomyopathy has been shown to have a benign prognosis. But in this case report, the imaging studies of the 2 patients suggest a poor prognosis. Furthermore, diagnosing cardiomyopathy should require multimodality imaging examinations to rule out differential diagnoses.
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Affiliation(s)
- Weiliang Huang
- Department of Echocardiography, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang
| | - Lina Guan
- Department of Echocardiography, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang
| | - Liwen Liu
- Department of Ultrasound, Xijing Hospital, Fourth Military Medical University, Xi’an, Shanxi, China
| | - Yuming Mu
- Department of Echocardiography, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang
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Yang S, Gao X, Liu L, Shu R, Yan J, Zhang G, Xiao Y, Ju Y, Zhao N, Song H. Performance and Reading Time of Automated Breast US with or without Computer-aided Detection. Radiology 2019; 292:540-549. [PMID: 31210612 DOI: 10.1148/radiol.2019181816] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BackgroundComputer-aided detection (CAD) systems may be used to help radiologists interpret automated breast (AB) US images. However, the optimal use of CAD with AB US has, to the knowledge of the authors, not been determined.PurposeTo compare the performance and reading time of different readers by using AB US CAD system to detect breast cancer in different reading modes.Materials and MethodsIn this retrospective study, 1485 AB US images (282 with malignant lesions, 695 with benign lesions, and 508 healthy) in 1452 women (mean age, 43.7 years; age range, 19-82 years) including 529 (36.4%) women who were asymptomatic were collected between 2016 and 2017. A CAD system was used to interpret the images. Three novice readers with 1-3 years of US experience and three experienced readers with 5-10 years of US experience were assigned to read AB US images without CAD, at a second reading (after the reader completed a full unaided interpretation), and at concurrent reading (use of CAD at the start of the assessment). Diagnostic performances and reading times were compared by using analysis of variance.ResultsFor all readers, the mean area under the receiver operating characteristic curve improved from 0.88 (95% confidence interval [CI]: 0.85, 0.91) at without-CAD mode to 0.91 (95% CI: 0.89, 0.92; P < .001) at the second-reading mode and 0.90 (95% CI: 0.89, 0.92; P = .002) at the concurrent-reading mode. The mean sensitivity of novice readers in women who were asymptomatic improved from 67% (95% CI: 63%, 74%) at without-CAD mode to 88% (95% CI: 84%, 89%) at both the second-reading mode and the concurrent-reading mode (P = .003). Compared with the without-CAD and second-reading modes, the mean reading time per volume of concurrent reading was 16 seconds (95% CI: 11, 22; P < .001) and 27 seconds (95% CI: 21, 32; P < .001) shorter, respectively.ConclusionComputer-aided detection (CAD) was helpful for novice readers to improve cancer detection at automated breast US in women who were asymptomatic. CAD was more efficient when used concurrently for all readers.© RSNA, 2019Online supplemental material is available for this article.See also the editorial by Slanetz in this issue.
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Affiliation(s)
- Shanling Yang
- From the Department of Ultrasonic Medicine, Xijing Hospital of the Fourth Military Medical University, No. 127 Changle West Road, Xi'an, Shaanxi, China 710032
| | - Xican Gao
- From the Department of Ultrasonic Medicine, Xijing Hospital of the Fourth Military Medical University, No. 127 Changle West Road, Xi'an, Shaanxi, China 710032
| | - Liwen Liu
- From the Department of Ultrasonic Medicine, Xijing Hospital of the Fourth Military Medical University, No. 127 Changle West Road, Xi'an, Shaanxi, China 710032
| | - Rui Shu
- From the Department of Ultrasonic Medicine, Xijing Hospital of the Fourth Military Medical University, No. 127 Changle West Road, Xi'an, Shaanxi, China 710032
| | - Jingru Yan
- From the Department of Ultrasonic Medicine, Xijing Hospital of the Fourth Military Medical University, No. 127 Changle West Road, Xi'an, Shaanxi, China 710032
| | - Ge Zhang
- From the Department of Ultrasonic Medicine, Xijing Hospital of the Fourth Military Medical University, No. 127 Changle West Road, Xi'an, Shaanxi, China 710032
| | - Yao Xiao
- From the Department of Ultrasonic Medicine, Xijing Hospital of the Fourth Military Medical University, No. 127 Changle West Road, Xi'an, Shaanxi, China 710032
| | - Yan Ju
- From the Department of Ultrasonic Medicine, Xijing Hospital of the Fourth Military Medical University, No. 127 Changle West Road, Xi'an, Shaanxi, China 710032
| | - Ni Zhao
- From the Department of Ultrasonic Medicine, Xijing Hospital of the Fourth Military Medical University, No. 127 Changle West Road, Xi'an, Shaanxi, China 710032
| | - Hongping Song
- From the Department of Ultrasonic Medicine, Xijing Hospital of the Fourth Military Medical University, No. 127 Changle West Road, Xi'an, Shaanxi, China 710032
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Meng X, Zheng M, Yu M, Bai W, Zuo L, Bu X, Liu Y, Xia L, Hu J, Liu L, Li J. Transplantation of CRISPRa system engineered IL10-overexpressing bone marrow-derived mesenchymal stem cells for the treatment of myocardial infarction in diabetic mice. J Biol Eng 2019; 13:49. [PMID: 31164920 PMCID: PMC6543626 DOI: 10.1186/s13036-019-0163-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [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: 01/31/2019] [Accepted: 04/08/2019] [Indexed: 02/07/2023] Open
Abstract
Background Myocardial infarction (MI) is a common cause of mortality in people. Mesenchymal stem cell (MSC) has been shown to exert therapeutic potential to treat myocardial infarction (MI). However, in patients with diabetes, the diabetic environment affected MSCs activity and could impair the efficacy of treatment. Interleukin-10 (IL-10) has been shown to attenuate MI by suppressing inflammation. In current study, the combination of MSC transplantation with IL-10 was evaluated in a diabetic mice model with MI. Methods We engineered bone marrow derived MSCs (BM-MSCs) to overexpress IL-10 by using CRISPR activation. We established the diabetic mice model with MI and monitored the IL-10 expression after BM-MSCs transplantation. We also evaluated the effects of BM-MSCs transplantation on inflammatory response, cell apoptosis, cardiac function and angiogenesis. Results CRISPR activation system enabled overexpression of IL-10 in BM-MSCs. Transplantation of BM-MSCs overexpressing IL-10 resulted in IL-10 expression in heart after transplantation. Transplantation of BM-MSCs overexpressing IL-10 inhibited inflammatory cell infiltration and pro-inflammatory cytokines production, improved cardiac functional recovery, alleviated cardiac injury, decreased apoptosis of cardiac cells and increased angiogenesis. Conclusion In summary, we have demonstrated the therapeutic potential of IL-10 overexpressed BM-MSCs in the treatment of MI in diabetic mice.
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Affiliation(s)
- Xin Meng
- 1Department of Ultrasonography, Xijing Hospital, the Fourth Military Medical University, Xi'an, 710032 Shaannxi China
| | - Minjuan Zheng
- 1Department of Ultrasonography, Xijing Hospital, the Fourth Military Medical University, Xi'an, 710032 Shaannxi China
| | - Ming Yu
- 1Department of Ultrasonography, Xijing Hospital, the Fourth Military Medical University, Xi'an, 710032 Shaannxi China
| | - Wei Bai
- 1Department of Ultrasonography, Xijing Hospital, the Fourth Military Medical University, Xi'an, 710032 Shaannxi China
| | - Lei Zuo
- 1Department of Ultrasonography, Xijing Hospital, the Fourth Military Medical University, Xi'an, 710032 Shaannxi China
| | - Xin Bu
- 2Department of Biochemistry and Molecular Biology, the Fourth Military Medical University, Xi'an, 710032 Shaannxi China
| | - Yi Liu
- 3Department of Cardiology, Xijing Hospital, the Fourth Military Medical University, Xi'an, 710032 Shaannxi China
| | - Linying Xia
- 3Department of Cardiology, Xijing Hospital, the Fourth Military Medical University, Xi'an, 710032 Shaannxi China
| | - Jing Hu
- 4Department of Radiation Oncology, Xijing Hospital, the Fourth Military Medical University, Xi'an, 710032 Shaannxi China
| | - Liwen Liu
- 1Department of Ultrasonography, Xijing Hospital, the Fourth Military Medical University, Xi'an, 710032 Shaannxi China
| | - Jianping Li
- 4Department of Radiation Oncology, Xijing Hospital, the Fourth Military Medical University, Xi'an, 710032 Shaannxi China
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Gao X, Liu L, Yan J, Yang S, Shu R, Ju Y, Zhang G, Xiao Y, Song H. A Comparison of the Acceptance of Female Subjects Between Mammography, Automated Breast Ultrasound and Hand-Held Ultrasound. j med imaging hlth inform 2019. [DOI: 10.1166/jmihi.2019.2655] [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: 11/23/2022]
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Liu LW, Zuo L, Zhou MY, Li J, Zhou XD, He GB, Zhang J, Zhang JZ, Liu B, Yang J, Xu B. [Efficacy and safety of transthoracic echocardiography-guided percutaneous intramyocardial septal radiofrequency ablation for the treatment of patients with obstructive hypertrophic cardiomyopathy]. Zhonghua Xin Xue Guan Bing Za Zhi 2019; 47:284-290. [PMID: 31060187 DOI: 10.3760/cma.j.issn.0253-3758.2019.04.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the safety and efficacy of transthoracic echocardiography-guided percutaneous intramyocardial septal radiofrequency ablation (PIMSRA) in patients with hypertrophic obstructive cardiomyopathy (HOCM). Methods: Nine HOCM patients with interventricular septal thickness ≥15 mm and ≤25 mm who were treated with PIMSRA between October 2016 to March 2017 in the Hypertrophic Cardiomyopathy Center of Xijing Hospital of Air Force Military Medical University were enrolled,and the clinical data were retrospectively analyzed.Interventricular septum thickness, left ventricular outflow tract diameter and maximum gradient were measured by transthoracic echocardiography immediately after procedure, at 1 month, 3 months and 6 months after operation.Symptoms and New York Heart Association (NYHA) functional class were assessed, and provoked left ventricular outflow tract gradient and exercise time were measured after 6 months. Results: The anterior interventricular septum ((21.5±2.6) mm vs. (24.7±2.7) mm, P<0.05) and posterior interventricular septum (21.1±2.5) mm vs. (22.6±3.3) mm, P<0.05) were significantly increased,left ventricular outflow tract diameter was widened ((8.2±3.4) mm vs. (4.8±2.2) mm, P<0.05), left ventricular outflow tract gradient ((26.8±19.6) mmHg (1 mmHg=0.133 kPa) vs. (83.3±32.4) mmHg, P<0.05) and mitral regurgitation (2.0±1.9) ml vs. (3.2±3.0) ml, P<0.05) were significantly decreased immediately after ablation compared with pre-operation values. Anterior interventricular septum, posterior interventricular septum and left ventricular outflow tract gradient further decreased after 1 month ((17.5±2.0) mm vs. (24.7±2.7) mm, P<0.05; (16.9±2.1) mm vs. (22.6±3.3) mm, P<0.05; (11.6±4.0) mmHg vs. (26.8±19.6) mmHg, P<0.05, respectively) compared with values immediately after ablation. Anterior interventricular septum and posterior interventricular septum decreased after 3 and 6 months ((14.8±1.7) mm and (13.4±2.0) mm vs. (17.5±2.0) mm, all P<0.05; (12.9±1.9) mm and (12.3±2.4) mm vs. (16.9±2.1) mm, all P<0.05, respectively) compared with values at 1 month after ablation.There were no significantly difference in left ventricular outflow tract gradient at 3 and 6 months post procedure compared with 1 month after ablation (all P>0.05). Compared with pre-operation, provoked left ventricular outflow tract gradient decreased ((25.5±11.4) mmHg vs. (147.8±58.0) mmHg, P<0.01), and total exercise time increased ((9.3±1.6) minutes vs. (6.7±1.6) minutes, P=0.03) at 6 months after operation.The symptoms were disappeared in 5 patients. There were 2 cases with NYHA class Ⅱ and 7 cases with NYHA class Ⅲ before operation,while there were 6 patients with NYHA classⅠ and 3 patients with NYHA class Ⅱ at 6 months after operation (P<0.01). Conclusion: Transthoracic echocardiography-guided PIMSRA is a safe and effective new treatment approach for patients with obstructive hypertrophic cardiomyopathy.
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Affiliation(s)
- L W Liu
- Hypertrophic Cardiomyopathy Center of Xijing Hospital of Air Force Medical University, Multi-disciplinary Consultation Center of Hypertrophic Cardiomyopathy of Shaanxi Province, Ultrasound Department of XijingHospital of Air Force Medical University, Xi'an 710032, China
| | - L Zuo
- Hypertrophic Cardiomyopathy Center of Xijing Hospital of Air Force Medical University, Multi-disciplinary Consultation Center of Hypertrophic Cardiomyopathy of Shaanxi Province, Ultrasound Department of XijingHospital of Air Force Medical University, Xi'an 710032, China
| | - M Y Zhou
- Hypertrophic Cardiomyopathy Center of Xijing Hospital of Air Force Medical University, Multi-disciplinary Consultation Center of Hypertrophic Cardiomyopathy of Shaanxi Province, Ultrasound Department of XijingHospital of Air Force Medical University, Xi'an 710032, China
| | - J Li
- Hypertrophic Cardiomyopathy Center of Xijing Hospital of Air Force Medical University, Multi-disciplinary Consultation Center of Hypertrophic Cardiomyopathy of Shaanxi Province, Ultrasound Department of XijingHospital of Air Force Medical University, Xi'an 710032, China
| | - X D Zhou
- Hypertrophic Cardiomyopathy Center of Xijing Hospital of Air Force Medical University, Multi-disciplinary Consultation Center of Hypertrophic Cardiomyopathy of Shaanxi Province, Ultrasound Department of XijingHospital of Air Force Medical University, Xi'an 710032, China
| | - G B He
- Hypertrophic Cardiomyopathy Center of Xijing Hospital of Air Force Medical University, Multi-disciplinary Consultation Center of Hypertrophic Cardiomyopathy of Shaanxi Province, Ultrasound Department of XijingHospital of Air Force Medical University, Xi'an 710032, China
| | - J Zhang
- Hypertrophic Cardiomyopathy Center of Xijing Hospital of Air Force Medical University, Multi-disciplinary Consultation Center of Hypertrophic Cardiomyopathy of Shaanxi Province, Ultrasound Department of XijingHospital of Air Force Medical University, Xi'an 710032, China
| | - J Z Zhang
- Cardiac Surgery Department of Xijing Hospital of Air Force Medical University, Xi'an 710032, China
| | - B Liu
- Cardiology Department of Xijing Hospital of Air Force Medical University, Xi'an 710032, China
| | - J Yang
- Cardiac Surgery Department of Xijing Hospital of Air Force Medical University, Xi'an 710032, China
| | - B Xu
- Cardiac Surgery Department of Xijing Hospital of Air Force Medical University, Xi'an 710032, China
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Zheng YM, Liu DB, Wang YH, Liu JF, Liu LW, Bai XS, Li F. [Operative method choice and strategy of laparoscopic surgery therapy for gallbladder stones and common bile duct stones]. Zhonghua Wai Ke Za Zhi 2019; 57:282-287. [PMID: 30929374 DOI: 10.3760/cma.j.issn.0529-5815.2019.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the selection method and technology of laparoscopic surgery for gallbladder stones and common bile duct stones(GCBDS). Methods: Data was collected from 318 in-patients of GCBDS at Department of General Surgery,Xuanwu Hospital of Capital Medical University from January 2013 to December 2017, and 298 in-patients acceptedlaparoscopic cholecystectomy(LC) and choledocholithotomy were recruited into final analysis.There were 138 males and 160 females,aged (60.4±18.6)years (range:25-89 years).Retrospective analysis was done on method distribution,effect and safety of laproscopic surgery.Comparisons of basic characters and therapeutic effects were performed betweenlaparoscopic common bile duct exploration (LCBDE) combined with primary closure and T tube drainage(TTD). Results: Among therecruited in-patients,LC combined with common bile duct exploration was performed in 7 cases(2.3%, 7/298), LC combined with LCBDE was performed in 291 cases(97.7%,291/298).There were 133 cases (45.7%,133/291) who treated by LCBDE combined with TTD and 158 cases(54.3%,158/291) who treated by LCBDE combined with primary closure.In LCBDE combined with primary closure group,18 cases (11.4%,18/158)had intraoperative biliary manometry.All patients were followed up for 6 months at least and there no death.Postoperative complications rate was 10.0% (29/291).There were no significant differences in sex ratio,age,American Society of Anesthesiologists score,concomitant diseases and previous abdominal surgery history between LCBDE combined with primary closure and LCBDE combined with TTD group.Patients in LCBDE combined with primary closure group were accompanied with less acute cholangitis than TTD group (43.3% vs.76.7%; χ(2)=9.061, P=0.002).There were no significant differences in the diameter of common bile duct, the number of stones, hospitalization expenses and the incidence of complications between the two groups(all P>0.05).LCBDE combined with primary closure had shorter operation time ((134.2±28.3)minutes vs.(148.3±19.6)minutes; t=-1.830, P=0.011)and post-operative hospitalization time ((5.6±2.6)days vs. (7.2±2.4)days; t=-1.847,P=0.014).Bile duct leakage rate was higher in primary closure group(6.3% vs.0.8%, χ(2)=3.934, P=0.047) and TTD group had higher residual stones rate(6.8% vs.1.3%; χ(2)=6.008, P=0.014). Conclusion: Strategy for treating GCBDS by laparoscopic surgery should be considered preoperative evaluation and intraoperative exploration to select appropriate minimally invasive surgical methods and techniques.
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Affiliation(s)
- Y M Zheng
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - D B Liu
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Y H Wang
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - J F Liu
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - L W Liu
- The First Clinical Medical College, Capital Medical University, Beijing 100053, China
| | - X S Bai
- The First Clinical Medical College, Capital Medical University, Beijing 100053, China
| | - F Li
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
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Al Ghamdi S, Rumman A, Liu LW. A232
PEG-J RELATED COMPLICATIONS IN A CANADIAN OUTPATIENT INTRAJEJUNAL LEVODOPA/CARBIDOPA PROGRAM FOR ADVANCED PARKINSON’S DISEASE. J Can Assoc Gastroenterol 2019. [DOI: 10.1093/jcag/gwz006.231] [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)
- S Al Ghamdi
- Division of Gastroenterology, University of Toronto, Toronto, ON, Canada
| | - A Rumman
- Division of Gastroenterology, University of Toronto, Toronto, ON, Canada
| | - L W Liu
- Division of Gastroenterology, University of Toronto, Toronto, ON, Canada
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Brenner DM, Gutman C, Elmes S, Andrews CN, Liu LW. A44 ELUXADOLINE FOR THE TREATMENT OF ABDOMINAL PAIN IN ADULTS WITH DIARRHEA-PREDOMINANT IRRITABLE BOWEL SYNDROME WHO REPORT INADEQUATE RESPONSE TO LOPERAMIDE. J Can Assoc Gastroenterol 2019. [DOI: 10.1093/jcag/gwz006.043] [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)
- D M Brenner
- Northwestern University Feinberg School of Medicine, Chicago, IL
| | | | | | - C N Andrews
- Division of Gastroenterology, University of Calgary, Calgary, AB, Canada
| | - L W Liu
- Toronto Western Hospital, University Health Network, University of Toronto, Toronto, ON, Canada
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Chen J, Yu Y, Li H, Hu Q, Chen X, He Y, Xue C, Ren F, Ren Z, Li J, Liu L, Duan Z, Cui G, Sun R. Long non-coding RNA PVT1 promotes tumor progression by regulating the miR-143/HK2 axis in gallbladder cancer. Mol Cancer 2019; 18:33. [PMID: 30825877 PMCID: PMC6397746 DOI: 10.1186/s12943-019-0947-9] [Citation(s) in RCA: 258] [Impact Index Per Article: 51.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 01/23/2019] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND The long non-coding RNA PVT1 (lncRNA PVT1) has been reported to act as an oncogenic regulator of several cancers. However, its expression and function in gallbladder cancer (GBC) remain largely unknown. METHODS In situ hybridization (ISH) and quantitative real-time PCR (qPCR) were performed to detect the expression of PVT1 and miR-143 in GBC tissues and cell lines. Immunohistochemistry (IHC) assays were performed to assess the expression of the hexokinase 2 (HK2) protein. The relationships among PVT1, miR-143 and HK2 were evaluated using dual-luciferase reporter, RNA immunoprecipitation (RIP) and biotin pull-down assays. The biological functions of PVT1, miR-143 and HK2 in GBC cells were explored with cell counting kit 8 (CCK-8), 5-ethynyl-20-deoxyuridine (EdU), colony formation, transwell, wound healing and glucose metabolism assays in vitro. For in vivo experiments, a xenograft model was used to investigate the effects of PVT1 and HK2 on GBC. RESULTS PVT1 was upregulated in GBC tissues and cells and was positively associated with malignancies and worse overall survival. PVT1 knockdown inhibited cell proliferation, migration, and invasion in vitro and restrained tumor growth in vivo. Further studies demonstrated that PVT1 positively regulated HK2 expression via its competing endogenous RNA (ceRNA) activity on miR-143. Additionally, HK2 expression and function were positively correlated with PVT1. Furthermore, we observed that the PVT1/miR-143/HK2 axis promoted cell proliferation and metastasis by regulating aerobic glucose metabolism in GBC cells. CONCLUSIONS The results of our study reveal a potential ceRNA regulatory pathway in which PVT1 modulates HK2 expression by competitively binding to endogenous miR-143 in GBC cells, which may provide new insights into novel molecular therapeutic targets for GBC.
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Affiliation(s)
- Jianan Chen
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 China
| | - Yan Yu
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 China
| | - Hua Li
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 China
| | - Qiuyue Hu
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 China
| | - Xiaolong Chen
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 China
| | - Yuting He
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 China
| | - Chen Xue
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 China
| | - Fang Ren
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 China
| | - Zhigang Ren
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 China
| | - Juan Li
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 China
| | - Liwen Liu
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 China
| | - Zhenfeng Duan
- Sarcoma Biology Laboratory, Department of Orthopaedic Surgery, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, CA 90095 USA
| | - Guangying Cui
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 China
| | - Ranran Sun
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 China
- National Engineering Laboratory for Internet Medical System and Application, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 Henan China
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Xue C, He Y, Zhu W, Chen X, Yu Y, Hu Q, Chen J, Liu L, Ren F, Ren Z, Cui G, Sun R. Low expression of LACTB promotes tumor progression and predicts poor prognosis in hepatocellular carcinoma. Am J Transl Res 2018; 10:4152-4162. [PMID: 30662658 PMCID: PMC6325492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Accepted: 11/04/2018] [Indexed: 06/09/2023]
Abstract
Hepatocellular carcinoma (HCC) is a major life-threatening malignancy worldwide. HCC has an unfavorable prognosis, mainly due to late diagnosis, early metastasis, and post-surgical recurrence. Recent studies have demonstrated that beta-lactamases (LACTB) plays a pivotal role in the pathogenesis and progression of several malignant tumors, but its expression and functional role in HCC has not been reported. In this study, we explored the expression of LACTB using The Cancer Genome Atlas datasets and two independent tissues microarrays. We then analyzed the correlation between LACTB expression and clinical outcomes in HCC. We demonstrated that LACTB mRNA and protein levels were both down-regulated in HCC, and decreased LACTB expression was associated with TNM stage, histologic grade, and overall survival of patients. Additionally, through Gene Set Enrichment Analysis, we found that the genes negatively related to the survival of HCC patients were enriched in the low LACTB expression group. Furthermore, we confirmed that overexpression of LACTB inhibited HCC cell proliferation, invasion, and migration in vitro, as well as decreased tumor growth in vivo. Online prediction results suggested that the LACTB gene was markedly correlated with genes involved in the lipid metabolism pathway. In conclusion, these findings suggest that down-regulated LACTB could function as a novel biomarker for diagnosis and prognosis prediction, and LACTB could serve as a promising target in HCC therapy.
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Affiliation(s)
- Chen Xue
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
| | - Yuting He
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
| | - Weiwei Zhu
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
| | - Xiaolong Chen
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
| | - Yan Yu
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
| | - Qiuyue Hu
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
| | - Jianan Chen
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
| | - Liwen Liu
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
| | - Fang Ren
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
| | - Zhigang Ren
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
| | - Guangying Cui
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
| | - Ranran Sun
- Precision Medicine Center, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
- Key Laboratory of Clinical Medicine, The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052, China
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Liu S, Liu L, Chen X, Yang Z, Li M, Wang Y, Lv W, Zhu P, Zhao X, Wang G. On an Easy Way to Prepare Fe, S, N Tri-Doped Mesoporous Carbon Materials as Efficient Electrocatalysts for Oxygen Reduction Reaction. Electrocatalysis (N Y) 2018. [DOI: 10.1007/s12678-018-0496-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Bao J, Yu Y, Chen J, He Y, Chen X, Ren Z, Xue C, Liu L, Hu Q, Li J, Cui G, Sun R. MiR-126 negatively regulates PLK-4 to impact the development of hepatocellular carcinoma via ATR/CHEK1 pathway. Cell Death Dis 2018; 9:1045. [PMID: 30315225 PMCID: PMC6185973 DOI: 10.1038/s41419-018-1020-0] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 08/21/2018] [Accepted: 08/30/2018] [Indexed: 12/30/2022]
Abstract
Emerging evidence has shown that microRNA-126 (miR-126) is aberrantly downregulated and plays a vital role in carcinogenesis in various cancers, including HCC. However, the underlying biological mechanisms of miR-126 in HCC are still largely unknown. In present study, we found that miR-126 was downregulated both in HCC tissues and cell lines. Low expression level of miR-126 was associated with poor overall survival (OS), late TNM stage and the presence of recurrence. Overexpression of miR-126 significantly decreased cell proliferation, metastasis and promoted apoptosis in vitro. Additional, high miR-126 expression reduced the tumor growth in vivo. Further we discovered that PLK (polo-like kinases)-4, a critical regulator in cell cycle, was a target of miR-126. PLK-4 overexpression could rescue the inhibitory effects of miR-126 on cell proliferation and invasion. Moreover, PLK-4 mRNA and protein levels were significantly upregulated in HCC tissues and positively associated with malignancies and poor OS. Knockdown PLK-4 significantly inhibited cell proliferation, invasion and promoted cell apoptosis in vitro whereas decreased tumor growth in vivo. More importantly, bioinformatics analysis combined with validation experiments in vitro and in vivo showed that activation of the ATR/CHEK1 pathway was involved in the oncogenic functions of PLK4 in HCC. We also validated that PLK4 could directly interact with ATR through CoIP assay. Taken together, we demonstrate that miRNA-126/PLK-4 axis is critical for tumorigenesis and progression of HCC, and the newly identified PLK-4/ATR/CHEK1 pathway may be a potential therapeutic target for HCC treatment.
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Affiliation(s)
- Jie Bao
- Key Laboratory of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Yan Yu
- Key Laboratory of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
- Precision Medicine Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Jianan Chen
- Key Laboratory of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
- Precision Medicine Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Yuting He
- Key Laboratory of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
- Precision Medicine Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Xiaolong Chen
- Key Laboratory of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
- Precision Medicine Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Zhigang Ren
- Key Laboratory of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
- Precision Medicine Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Chen Xue
- Key Laboratory of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
- Precision Medicine Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Liwen Liu
- Key Laboratory of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
- Precision Medicine Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Qiuyue Hu
- Key Laboratory of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
- Precision Medicine Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Juan Li
- Key Laboratory of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
- Precision Medicine Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Guangying Cui
- Key Laboratory of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
- Precision Medicine Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| | - Ranran Sun
- Key Laboratory of Clinical Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
- Precision Medicine Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
- National Engineering Laboratory for Internet Medical System and Application, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China.
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118
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Yang Q, Wang B, Wang J, Sun C, Ma Z, Zuo L, Zhang Y, Liu L. [Analysis of genotype-phenotype correlation for a novel MYH7-D554Y mutation identified in an ethnic Han Chinese pedigree affected with hypertrophic cardiomyopathy]. Zhonghua Yi Xue Yi Chuan Xue Za Zhi 2018; 35:667-671. [PMID: 30298491 DOI: 10.3760/cma.j.issn.1003-9406.2018.05.010] [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 explore the genotype-phenotype correlation of a MYH7-D554Y mutation identified in an ethnic Han Chinese pedigree affected with hypertrophic cardiomyopathy. METHODS Ninety six cardiovascular disease-related genes were detected in the proband by exonic amplification and high-throughput sequencing. Suspected mutations were verified by Sanger sequencing among 300 healthy controls as well as family members of the proband. The pathogenicity and conservation of the detected mutations were analyzed with ClustalX, MutationTaster, PolyPhen-2, Provean and SIFT software. RESULTS Four of the 5 first-degree relatives of the proband were diagnosed with hypertrophic cardiomyopathy. The proband has featured extremely hypertrophic left ventricular wall with a maximal thickness of 35 mm. Genetic testing showed that four of them have carried a heterozygous c.1660G>T (p.Asp554Tyr) mutation of the MYH7 gene, who the remaining one was phenotypically normal and did not carry the mutation. The mutation has not been recorded by the Human Gene Mutation Database (HGMD) and other databases. Bioinformatics analysis suggested that the mutation site is highly conserved and that the mutation is pathogenic. CONCLUSION The p.Asp554Tyr mutation of the MYH7 gene probably underlies the hypertrophic cardiomyopathy in this pedigree.
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Affiliation(s)
- Qianli Yang
- Department of Ultrasound, the First Affiliated Hospital of the Air Force Medical University, Xi'an, Shaanxi 710032, China.
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Na L, Zhao D, Liu L. GW29-e1531 The Early Diagnosis of MYH7 Gene Mutation Carriers of Hypertrophic Cardiomyopathy Using Multi-Parameter Analysis Model by Conventional 2D- Echocardiography and 3D- Speckle Tracking Imaging. J Am Coll Cardiol 2018. [DOI: 10.1016/j.jacc.2018.08.806] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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120
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Liu L, Zhou M, Zuo L, Li J, Chen W, Xu B, Hsi DH. Echocardiography Guided Liwen Procedure ™ for the treatment of obstructive hypertrophic cardiomyopathy in a patient with prior aortic valve replacement surgery: Liwen procedure for intra-myocardial radiofrequency ablation. Echocardiography 2018; 35:1230-1232. [PMID: 29870575 DOI: 10.1111/echo.14040] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
We successfully treated a patient who was diagnosed of having hypertrophic obstructive cardiomyopathy after the aortic valve replacement surgery for the concomitant aortic stenosis. We report this first in kind new procedure exclusively developed in our center, Liwen procedureTM (percutaneous intramyocardial septal radiofrequency ablation), for patients with left ventricular outflow tract obstruction in spite of maximal medical therapy. The procedure was performed under transthoracic echo guidance. We discussed the technical details, safety, and effectiveness with corresponding images. The patient did well one year after the procedure without LVOT obstruction or arrhythmia.
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Affiliation(s)
- Liwen Liu
- Department of Ultrasound, XiJing Hypertrophic Cardiomyopathy Center, XiJing Hospital/AFMU, Xi'an, Shannxi, China
| | - Mengyao Zhou
- Department of Ultrasound, XiJing Hypertrophic Cardiomyopathy Center, XiJing Hospital/AFMU, Xi'an, Shannxi, China
| | - Lei Zuo
- Department of Ultrasound, XiJing Hypertrophic Cardiomyopathy Center, XiJing Hospital/AFMU, Xi'an, Shannxi, China
| | - Jing Li
- Department of Ultrasound, XiJing Hypertrophic Cardiomyopathy Center, XiJing Hospital/AFMU, Xi'an, Shannxi, China
| | - Wensheng Chen
- Department of Cardiac Surgery, XiJing Hospital/AFMU, Xi'an, Shanxi, China
| | - Bo Xu
- Department of Cardiac Surgery, XiJing Hospital/AFMU, Xi'an, Shanxi, China
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121
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Xu C, Yang Y, Liu L, Li J, Liu X, Zhang X, Liu Y, Zhang C, Liu X. Microcystin-LR nanobody screening from an alpaca phage display nanobody library and its expression and application. Ecotoxicol Environ Saf 2018; 151:220-227. [PMID: 29353171 DOI: 10.1016/j.ecoenv.2018.01.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [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: 12/03/2017] [Revised: 12/28/2017] [Accepted: 01/03/2018] [Indexed: 06/07/2023]
Abstract
Microcystin-LR (MC-LR) is a type of biotoxin that pollutes the ecological environment and food. The study aimed to obtain new nanobodies from phage nanobody library for determination of MC-LR. The toxin was conjugated to keyhole limpet haemocyanin (KLH) and bovine serum albumin (BSA), respectively, then the conjugates were used as coated antigens for enrichment (coated MC-LR-KLH) and screening (coated MC-LR-BSA) of MC-LR phage nanobodies from an alpaca phage display nanobody library. The antigen-specific phage particles were enriched effectively with four rounds of biopanning. At the last round of enrichment, total 20 positive monoclonal phage nanobodies were obtained from the library, which were analyzed after monoclonal phage enzyme linked immunosorbent assay (ELISA), colony PCR and DNA sequencing. The most three positive nanobody genes, ANAb12, ANAb9 and ANAb7 were cloned into pET26b vector, then the nanobodies were expressed in Escherichia coli BL21 respectively. After being purified, the molecular weight (M.W.) of all nanobodies were approximate 15kDa with sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). The purified nanobodies, ANAb12, ANAb9 and ANAb7 were used to establish the indirect competitive ELISA (IC-ELISA) for MC-LR, and their half-maximum inhibition concentrations (IC50) were 0.87, 1.17 and 1.47μg/L, their detection limits (IC10) were 0.06, 0.08 and 0.12μg/L, respectively. All of them showed strong cross-reactivity (CRs) of 82.7-116.9% for MC-RR, MC-YR and MC-WR, and weak CRs of less than 4.56% for MC-LW, less than 0.1% for MC-LY and MC-LF. It was found that all the IC-ELISAs for MC-LR spiked in tap water samples detection were with good accuracy, stability and repeatability, their recoveries were 84.0-106.5%, coefficient of variations (CVs) were 3.4-10.6%. These results showed that IC-ELISA based on the nanobodies from the alpaca phage display antibody library were promising for high sensitive determination of multiple MCs.
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Affiliation(s)
- Chongxin Xu
- College of Life Sciences, Nanjing Normal University, Nanjing 210023, China; Key Laboratory of Food Quality and Safety of Jiangsu/Province-State Key Laboratory Breeding Base, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Ying Yang
- College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Liwen Liu
- College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Jianhong Li
- College of Life Sciences, Nanjing Normal University, Nanjing 210023, China.
| | - Xiaoqin Liu
- Huaihua Vocational and Technical College, Huaihua 418007, China
| | - Xiao Zhang
- Key Laboratory of Food Quality and Safety of Jiangsu/Province-State Key Laboratory Breeding Base, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Yuan Liu
- Key Laboratory of Food Quality and Safety of Jiangsu/Province-State Key Laboratory Breeding Base, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Cunzheng Zhang
- Key Laboratory of Food Quality and Safety of Jiangsu/Province-State Key Laboratory Breeding Base, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Xianjin Liu
- Key Laboratory of Food Quality and Safety of Jiangsu/Province-State Key Laboratory Breeding Base, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China.
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122
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Liu L, Liu B, Li J, Zhang Y. Percutaneous intramyocardial septal radiofrequency ablation of hypertrophic obstructive cardiomyopathy: a novel minimally invasive treatment for reduction of outflow tract obstruction. EUROINTERVENTION 2018. [PMID: 29537965 DOI: 10.4244/eij-d-17-00657] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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: 11/23/2022]
Affiliation(s)
- Liwen Liu
- Department of Ultrasound, Xijing Hypertrophic Cardiomyopathy Center, Xijing Hospital, Fourth Military Medical University, Xi'an, Shannxi, China
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123
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Woo M, Tse Y, O’Brien JD, Klar D, Sambhi A, Sockalingham S, Liu LW. A295 AN INTEGRATED MULTIDISCIPLINARY GROUP PROGRAM IMPROVES IRRITABLE BOWEL SYNDROME SYMPTOM SEVERITY: A PILOT STUDY. J Can Assoc Gastroenterol 2018. [DOI: 10.1093/jcag/gwy009.295] [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: 11/14/2022] Open
Affiliation(s)
- M Woo
- Queen’s, Kingston, ON, Canada
| | - Y Tse
- Medicine, University Health Network, Toronto, ON, Canada
| | - J D O’Brien
- Medicine, University Health Network, Toronto, ON, Canada
| | - D Klar
- Medicine, University Health Network, Toronto, ON, Canada
| | - A Sambhi
- Medicine, University Health Network, Toronto, ON, Canada
| | - S Sockalingham
- Medicine, University Health Network, Toronto, ON, Canada
| | - L W Liu
- Medicine, University Health Network, Toronto, ON, Canada
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124
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Liu S, Yang Z, Li M, Liu L, Wang Y, Lv W, Qin Z, Zhao X, Zhu P, Wang G. FeS-decorated hierarchical porous N, S-dual-doped carbon derived from silica-ionogel as an efficient catalyst for oxygen reduction reaction in alkaline media. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.01.195] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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125
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Freitas M, Alqaraawi A, Lang A, Liu LW. A175 LINACLOTIDE AND PRUCALOPRIDE FOR MANAGEMENT OF CONSTIPATION IN PATIENTS WITH PARKINSONISM. J Can Assoc Gastroenterol 2018. [DOI: 10.1093/jcag/gwy009.175] [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)
- M Freitas
- Division of Gastroenterology, Department of Medicine, Toronto Western Hospital, University of Toronto, Toronto, ON, Canada
| | - A Alqaraawi
- King Faisal Specialist Hospital & Research Centre, Riyadh, Saudi Arabia
| | - A Lang
- Division of Gastroenterology, Department of Medicine, Toronto Western Hospital, University of Toronto, Toronto, ON, Canada
| | - L W Liu
- Medicine, University Health Network, Toronto, ON, Canada
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126
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Parker CH, Liu LW. A308 A PRACTICE AUDIT ON THE EFFECTIVENESS OF BIOFEEDBACK THERAPY IN A TERTIARY CARE CENTRE. J Can Assoc Gastroenterol 2018. [DOI: 10.1093/jcag/gwy008.309] [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: 11/13/2022] Open
Affiliation(s)
- C H Parker
- Medicine, University of Toronto, Toronto, ON, Canada
| | - L W Liu
- Medicine, University Health Network, Toronto, ON, Canada
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127
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Ma A, Liu LW. A304 A CASE REPORT ILLUSTRATING THE NATURAL PROGRESSION OF TYPE 3 TO TYPE 2 ACHALASIA. J Can Assoc Gastroenterol 2018. [DOI: 10.1093/jcag/gwy009.304] [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)
- A Ma
- Gastroenterology, University of Toronto, Toronto, ON, Canada
| | - L W Liu
- Medicine, University Health Network, Toronto, ON, Canada
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128
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Meng X, Li J, Zheng M, Zuo L, Sun C, Zhu Y, Fang L, Liu L, Zhou X. Stable H3 peptide was delivered by gold nanorods to inhibit LSD1 activation and induce human mesenchymal stem cells differentiation. Oncotarget 2018; 8:23110-23119. [PMID: 28416745 PMCID: PMC5410289 DOI: 10.18632/oncotarget.15487] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [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: 01/11/2017] [Accepted: 02/08/2017] [Indexed: 12/11/2022] Open
Abstract
Recently, lysine-specific demethylase 1 (LSD1), which is the first identified histone demethylase, regulates post-translational modifications and has great promise as new targets for cancer and other diseases. Moreover, the ability of LSD1 to induce the differentiation of stem cells has attracted great attention in biological fields. In this study, we designed LSD1 peptide inhibitor based on its substrate H3 peptide. Through introducing a disulfide bond to stabilize the native peptide into alpha helical structure, we get a peptide with higher cell permeability and stability compared to its parent form. Using gold nanorods (AuNRs) as delivery systems to deliver stable peptide into human MSCs, the delivery efficiency has been enhanced significantly by flow cytometry and cell fluorescent imaging. The intracellular delivery of stable peptide by AuNRs-PEI-based nanocarriers could inhibit the activation of LSD1, which together with hepatocyte growth factor (HGF) exhibits obviously synergistic effect to induce human MSCs differentiation. Furthermore, the hepatic marker genes AFP (alpha fetal protein) and ck19 are up-regulated by AuNRs-stable peptide (AuNRs- SP- PEI) with HGF. In conclusion, our study is the first time to use stable H3 peptide to inhibit LSD1 activation, which has been further delivered by AuNRs as nanocarriers into human MSCs.
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Affiliation(s)
- Xin Meng
- Department of Ultrasonography, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, Shaanxi, China
| | - Jianping Li
- Department of Radiation Oncology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, Shaanxi, China
| | - Minjuan Zheng
- Department of Ultrasonography, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, Shaanxi, China
| | - Lei Zuo
- Department of Ultrasonography, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, Shaanxi, China
| | - Chao Sun
- Department of Ultrasonography, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, Shaanxi, China
| | - Yongsheng Zhu
- Department of Ultrasonography, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, Shaanxi, China
| | - Ling Fang
- Department of Ultrasonography, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, Shaanxi, China
| | - Liwen Liu
- Department of Ultrasonography, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, Shaanxi, China
| | - Xiaodong Zhou
- Department of Ultrasonography, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, Shaanxi, China
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129
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Zhao J, Yue Y, Xie Y, Liu L, Cao F, Gao S, Wang Y. Radix Cyathula officinalis Kuan inhibits arterial remodeling in spontaneously hypertensive rats. Exp Ther Med 2017; 14:5395-5400. [PMID: 29285068 PMCID: PMC5740529 DOI: 10.3892/etm.2017.5218] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 09/05/2017] [Indexed: 12/20/2022] Open
Abstract
There is still no resolution for arterial remodeling related with hypertension, though hypertension treatment has access to a number of pharmacological agents. The present study aimed at investigating the prevention of Cyathula officinalis Kuan's roots (C. officinalis Kuan) against in arterial remodeling in vitro. Spontaneously hypertensive rats (SHRs) were intragastrically administered 3, 6 or 12 g/kg C. officinalis Kuan or normal saline or enalapril (2.5 mg/kg) once a day for 8 weeks. Hematoxylin and eosin were used to measure blood pressure and stain carotid and arota. The serum concentration of nitric oxide (NO) was measured by NO assay kit (nitrate reductase method). The endothelin-1 transcriptional level, endothelial NO synthase of endothelium as well as angiotensin II receptor type 1 (AT1R) of aorta and carotid was tested by quantitative reverse transcription-polymerase chain reaction (qRT-PCR) and the protein level in aorta was also measured by western blotting. The blood pressure in SHR+enalapril, SHR+3 g/kg, SHR+6 g/kg and SHR+12 g/kg C. officinalis Kuan groups was significantly decreased at 4, 6 and 8 weeks post-treatment compared with SHR group. Different doses of C. officinalis Kuan and enalapril treatment showed aortic wall thinness and strengthened NO serum level, but made no impact on the transcriptional level of AT1R in aorta or endothelial NO synthase in carotid. It is suggested by such results that therapy by C. officinalis Kuan is able to fight against arterial remodeling, thus may provide a new means to treat arterial remodeling caused by hypertension.
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Affiliation(s)
- Jiajing Zhao
- Department of Traditional Chinese Medicine, Shanghai Putuo People's Hospital, Shanghai 200060, P.R. China
| | - Yaohan Yue
- Department of Traditional Chinese Medicine, Shanghai Putuo People's Hospital, Shanghai 200060, P.R. China
| | - Yun Xie
- Department of Traditional Chinese Medicine, Shanghai Putuo People's Hospital, Shanghai 200060, P.R. China
| | - Liwen Liu
- Department of Traditional Chinese Medicine, Shanghai Putuo People's Hospital, Shanghai 200060, P.R. China
| | - Fei Cao
- Department of Traditional Chinese Medicine, Shanghai Putuo People's Hospital, Shanghai 200060, P.R. China
| | - Shurong Gao
- Department of Traditional Chinese Medicine, Shanghai Putuo People's Hospital, Shanghai 200060, P.R. China
| | - Yingjue Wang
- Department of Traditional Chinese Medicine, Shanghai Putuo People's Hospital, Shanghai 200060, P.R. China
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Li WX, Liu LW, Wang J, Zuo L, Yang F, Kang N, Lei CH. [Predicting value of 2014 European guidelines risk prediction model for sudden cardiac death (HCM Risk-SCD) in Chinese patients with hypertrophic cardiomyopathy]. Zhonghua Xin Xue Guan Bing Za Zhi 2017; 45:1033-1038. [PMID: 29325362 DOI: 10.3760/cma.j.issn.0253-3758.2017.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Objective: To evaluate the predicting value of the 2014 European Society of Cardiology (ESC) guidelines risk prediction model for sudden cardiac death (HCM Risk-SCD) in Chinese patients with hypertrophic cardiomyopathy (HCM), and to explore the predictors of adverse cardiovascular events in Chinese HCM patients. Methods: The study population consisted of a consecutive 207 HCM patients admitted in our center from October 2014 to October 2016. All patients were followed up to March 2017. The 5-year SCD probability of each patient was estimated using HCM Risk-SCD model based on electrocardiogram, echocardiography and cardiac magnetic resonance (CMR) examination results. The primary, second, and composite endpoints were recorded. The primary endpoint included SCD and appropriate ICD therapy, identical to the HCM Risk-SCD endpoint. The second endpoint included acute myocardial infarction, hospitalization for heart failure, thrombus embolism and end-stage HCM. The composite endpoint was either the primary or the second endpoint. Patients were divided into the 3 categories according to 5-year SCD probability assessed by HCM Risk-SCD model: low risk group<4%,intermediate risk group ≥4% to<6%, and high risk group≥6%. Results: (1) Prevalence of endpoints: All 207 HCM patients completed the follow-up (350 (230, 547) days). During follow-up, 8 (3.86%) patients reached the primary endpoints (3 cases of SCD, 3 cases of survival after defibrillation, and 2 cases of appropriate ICD discharge); 21 (10.14%) patients reached the second endpoints (1 case of acute myocardial infarction, 16 cases of heart failure hospitalization, 2 cases of thromboembolism, and 2 cases of end-stage HCM). (2) Predicting value of HCM Risk-SCD model: Patients with primary endpoints had higher prevalence of syncope and intermediate-high risk of 5-year SCD, as compared to those without primary endpoints (both P<0.05). (3) Predicting value of HCM Risk-SCD model: The low risk group included 122 patients (59%), the intermediate risk group 42 (20%), and the high risk group 43 (21%). There was a clear trend towards to higher heart rate, higher values of PTF(V1) and plane QRS-T angle, higher left ventricular mass index (LVMI), elevated maximal left ventricular outflow tract pressure gradient (LVOT-PGmax), enlarged left atrial dimension(LAD) and volume index (LAVI), reduced systolic mitral annular velocity (s'), and higher late gadolinium enhancement (LGE) volume and mass in patients with high risk of 5-year of SCD, as compared to those with low-intermediate risk (all P<0.05). Moreover, 5-year SCD probability was positively correlated with heart rate, plane QRS-T angle, LVMI, LAVI, LGE%, and negatively correlated with s'(r=0.161, P=0.019; r=0.669, P=0.001; r=0.206, P=0.004; r=0.284, P=0.000; r=0.351, P=0.000; r= -0.245, P=0.001; respectively). (4) LAD, LAVI, e' and s' were independent predictors for poor outcomes. HCM patients with LAD≥39 mm, LAVI≥49.6 ml/m(2), e'≤6.5 cm/s and s'≤6.6 cm/s were more likely to have adverse cardiovascular events (AUC 0.702, 95%CI 0.604-0.799, P=0.001; AUC 0.700, 95%CI 0.567-0.833, P=0.001; AUC 0.716, 95%CI 0.616-0.817, P=0.000; AUC 0.764, 95%CI 0.676-0.853, P=0.000,respectively). Conclusions: The HCM Risk-SCD model is of value in predicting SCD for Chinese HCM patients. The plane QRS-T angle and LGE% are the best predictors of 5-year SCD risk in Chinese HCM patients. Moreover, conventional echocardiographic parameters, including LAD, LAVI, e' and s', are useful to predict adverse cardiovascular events among Chinese HCM patients.
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Affiliation(s)
- W X Li
- Department of Ultrasound, Xijing Hospital Affiliated to Fourth Military Medical University, Xi'an 710032, China
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131
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Zheng M, Pan F, Liu Y, Li Z, Zhou X, Meng X, Liu L, Ge S. Echocardiographic Strain Analysis for the Early Detection of Myocardial Structural Abnormality and Initiation of Drug Therapy in a Mouse Model of Dilated Cardiomyopathy. Ultrasound Med Biol 2017; 43:2914-2924. [PMID: 28942269 DOI: 10.1016/j.ultrasmedbio.2017.07.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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: 11/17/2016] [Revised: 06/17/2017] [Accepted: 07/30/2017] [Indexed: 06/07/2023]
Abstract
This study aimed to evaluate the role of echocardiography-based strain analysis in the early diagnosis and guidance for management of dilated cardiomyopathy (DCM). Muscular dystrophy mice (which spontaneously develop DCM) and control (C57 BL/6 J) mice were sequentially evaluated by ultrasound biomicroscopy, conventional left ventricle (LV) measurement, two-dimensional (2-D) strain analysis and myocardial histologic analysis for 12 consecutive months. Significant alternation of LV remodeling and dysfunction could be detected by conventional echocardiography after 9 mo, by strain analysis after 5 mo and by histologic analysis after 4 mo. The global longitudinal systolic peak strain (PK) was the most sensitive strain marker for early detection of myocardial structural abnormality in the subclinical stage. Moreover, losartan administration before the PK decrease was associated with significantly preserved LV function. These results suggest that myocardial strain analysis (particularly longitudinal PK) is sensitive for the early detection of LV dysfunction in mice with dilated cardiomyopathy.
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Affiliation(s)
- Minjuan Zheng
- Department of Ultrasound, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Feng Pan
- Department of Orthodontics, Stomatology Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Ying Liu
- Department of Radiology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Zhenzhou Li
- Pediatric Cardiology, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA
| | - Xiaodong Zhou
- Department of Ultrasound, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Xin Meng
- Department of Ultrasound, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Liwen Liu
- Department of Ultrasound, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Shuping Ge
- Department of Ultrasound, Xijing Hospital, Fourth Military Medical University, Xi'an, China; Pediatric Cardiology, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA.
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Li X, Zhang D, Guan S, Ye W, Liu L, Lou L. Efficacy of anti-VEGF agents in the treatment of elderly hepatocellular carcinoma: a systematic review. Oncotarget 2017; 8:93179-93185. [PMID: 29190987 PMCID: PMC5696253 DOI: 10.18632/oncotarget.21452] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 04/27/2017] [Accepted: 07/12/2017] [Indexed: 11/25/2022] Open
Abstract
Purpose We aimed to investigate the role of anti-vascular endothelial growth factor (VEGF) agents, including tyrosine-kinase inhibitors or monoclonal anti-bodies, in the treatment of elderly hepatocellular carcinoma (HCC) patients. Materials and Methods Databases from PubMed, Web of Science and abstracts presented at ASCO meeting up to March 31, 2017 were searched to identify relevant studies. The endpoints were overall survival (OS) and progression-free survival (PFS). Data were examined using age cutoffs of 65 years. Results A total of 1,309 elderly (aged ≥ 65 years) HCC patients from seven trials were included for analysis. Our results demonstrated that the use of anti-VEGF agents MTAs in patients aged ≥ 65 years significantly improved PFS (HR 0.65, 95% CI: 0.55–0.76, p < 0.001) but not for OS (HR 0.87, 95% CI: 0.73–1.05, p = 0.15). Sub-group analysis according to treatment line showed that the use of anti-VEGF agents as second-line treatment significantly improved PFS (HR 0.55, 95% CI: 0.45–0.67, p < 0.001) and marginally improved OS (HR 0.83, 95% CI: 0.68–1.01, p = 0.061). Additionally, no survival benefits were observed in elderly HCC received first-line anti-VEGF treatments in terms of PFS (HR 0.87, 95% CI: 0.67–1.13, p = 0.29) and OS (HR 1.19, 95% CI: 0.74–1.36, p = 0.47). No publication bias was detected by Begg's and Egger's tests for OS. Conclusions The findings of this study show that elderly HCC patients who relapsed after a first-line sorafenib treatment obtains a survival benefits from anti-VEGF agents rechallenge. Further studies are recommended to search for predictors of good responders in these patients received anti-VEGF agents.
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Affiliation(s)
- Xiaofei Li
- Department of Infectious Diseases, Yi Wu Central Hospital, Zhejiang Province, 322000, China
| | - Daofu Zhang
- Liao Cheng City People's Hospital, Shandong Province, 252000, China
| | - Shan Guan
- Department of Infectious Diseases, Liaocheng People's Hospital, Shandong Province, 252000, China
| | - Weiwei Ye
- Department of Infectious Diseases, Yi Wu Central Hospital, Zhejiang Province, 322000, China
| | - Liwen Liu
- Department of Infectious Diseases, Yi Wu Central Hospital, Zhejiang Province, 322000, China
| | - Lianqing Lou
- Department of Infectious Diseases, Yi Wu Central Hospital, Zhejiang Province, 322000, China
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133
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Yang Q, Zhou X, Liu L, Ge S, Wang H, Yang X. GW28-e0773 Exosomes are Potential Novel Mediators for Microbubbles Enhanced Ultrasound Cavitation-Induced Cardiovascular Anti-inflammatory Therapies. J Am Coll Cardiol 2017. [DOI: 10.1016/j.jacc.2017.07.695] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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134
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Qian Y, Peng T, Ge S, Wang H, Yang X, Liu L, Zhou X. GW28-e0050 Assessment 2D and 3D global longitudinal Strain of abnormal LV myocardial deformation properties Using 3D Speckle-Tracking Echocardiography in young HCM. J Am Coll Cardiol 2017. [DOI: 10.1016/j.jacc.2017.07.561] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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135
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Zuo L, Sun C, Yang J, Liu B, Zhou M, Guo R, Yu S, Ge J, Xiong L, Liu L. Percutaneous trans-apex intra-septal radiofrequency ablation of hypertrophic cardiomyopathy. MINIM INVASIV THER 2017; 27:97-100. [PMID: 28949276 DOI: 10.1080/13645706.2017.1378235] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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)
- Lei Zuo
- Department of Ultrasound, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi Province, China
- Multi-Disciplinary Clinic and Genetic Counseling Center of Hypertrophic Cardiomyopathy, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi Province, China
| | - Chao Sun
- Department of Ultrasound, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi Province, China
- Multi-Disciplinary Clinic and Genetic Counseling Center of Hypertrophic Cardiomyopathy, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi Province, China
| | - Jian Yang
- Multi-Disciplinary Clinic and Genetic Counseling Center of Hypertrophic Cardiomyopathy, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi Province, China
- Department of Cardiac Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi Province, China
| | - Bing Liu
- Multi-Disciplinary Clinic and Genetic Counseling Center of Hypertrophic Cardiomyopathy, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi Province, China
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi Province, China
| | - Mengyao Zhou
- Department of Ultrasound, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi Province, China
- Multi-Disciplinary Clinic and Genetic Counseling Center of Hypertrophic Cardiomyopathy, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi Province, China
| | - Ruiqi Guo
- Department of Ultrasound, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi Province, China
- Multi-Disciplinary Clinic and Genetic Counseling Center of Hypertrophic Cardiomyopathy, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi Province, China
| | - Shiqiang Yu
- Multi-Disciplinary Clinic and Genetic Counseling Center of Hypertrophic Cardiomyopathy, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi Province, China
- Department of Cardiac Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi Province, China
| | - Junbo Ge
- Multi-Disciplinary Clinic and Genetic Counseling Center of Hypertrophic Cardiomyopathy, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi Province, China
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Lize Xiong
- Multi-Disciplinary Clinic and Genetic Counseling Center of Hypertrophic Cardiomyopathy, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi Province, China
- Department of Anaesthesia, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi Province, China
| | - Liwen Liu
- Department of Ultrasound, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi Province, China
- Multi-Disciplinary Clinic and Genetic Counseling Center of Hypertrophic Cardiomyopathy, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi Province, China
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136
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Yang Q, Tang P, He G, Ge S, Liu L, Zhou X. Hemocoagulase Combined with Microbubble-Enhanced Ultrasound Cavitation for Augmented Ablation of Microvasculature in Rabbit VX2 Liver Tumors. Ultrasound Med Biol 2017; 43:1658-1670. [PMID: 28545858 DOI: 10.1016/j.ultrasmedbio.2017.03.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [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: 09/02/2016] [Revised: 03/20/2017] [Accepted: 03/21/2017] [Indexed: 06/07/2023]
Abstract
We investigated a new method for combining microbubble-enhanced ultrasound cavitation (MEUC) with hemocoagulase (HC) atrox. Our goal was to induce embolic effects in the vasculature and combine these with an anti-angiogenic treatment strategy. Fourteen days after being implanted with a single slice of the liver VX2 tumor, rabbits were randomly divided into five groups: (i) a control group injected intra-venously with saline using a micropump; (ii) a group given only an injection of HC; (iii) a group treated only with ultrasound cavitation; (iv) a group treated with MEUC; (v) a group treated with MEUC + HC. Contrast-enhanced ultrasound was performed before treatment and 1 h and 7 d post-treatment to measure tumor size, enhancement and necrosis range. QontraXt software was used to determine the time-intensity curve of tumor blood perfusion and microvascular changes. At 1 h and 7 d after treatment with MEUC + HC, the parameters of the time-intensity curve, which included peak value, regional blood volume, regional blood flow and area under the curve value and which were measured using contrast-enhanced ultrasound, were significantly lower than those of the other treatment groups. The MEUC + HC treatment group exhibited significant growth inhibition relative to the ultrasound cavitation only, HC and MEUC treatment groups. No damage was observed in the surrounding normal tissues. These results support the feasibility of reducing the blood perfusion of rabbit VX2 liver tumors using a new method that combines MEUC and HC.
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Affiliation(s)
- Qian Yang
- Department of Ultrasound, Xijing Hospital, Xi'an, China
| | - Peng Tang
- Department of Orthopedics and Rehabilitation, China Rehabilitation Research Center, Beijing Charity Hospital, Beijing, China
| | - Guangbin He
- Department of Ultrasound, Xijing Hospital, Xi'an, China
| | - Shuping Ge
- The Heart Center, St. Christopher's Hospital for Children & Drexel University College of Medicine, Philadelphia, Pennsylvania, USA; Deborah Heart and Lung Center, Browns Mills, New Jersey, USA
| | - Liwen Liu
- Department of Ultrasound, Xijing Hospital, Xi'an, China.
| | - Xiaodong Zhou
- Department of Ultrasound, Xijing Hospital, Xi'an, China
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137
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Luo W, Zhang Y, He G, Yu M, Zheng M, Liu L, Zhou X. Effects of radiofrequency ablation versus other ablating techniques on hepatocellular carcinomas: a systematic review and meta-analysis. World J Surg Oncol 2017; 15:126. [PMID: 28693505 PMCID: PMC5504820 DOI: 10.1186/s12957-017-1196-2] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [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: 04/27/2017] [Accepted: 06/22/2017] [Indexed: 12/12/2022] Open
Abstract
Background Percutaneous ablation has quickly arisen as one of the important alternative treatments for hepatocellular carcinoma (HCC). We aimed to compare the therapeutic effects of radiofrequency ablation (RFA) and other ablative techniques on HCCs. Methods Databases were searched to identify literature on complete tumor ablation (CTA), overall survival (OS), local tumor recurrence (LTR), and complications of RFA in the treatment of HCC, compared with those of microwave ablation (MWA), percutaneous ethanol injection (PEI), PEI plus RFA, cryoablation (CRA), laser ablation (LSA), and high-intensity focused ultrasound. Randomized controlled trials and high-quality cohort studies were included in the assessment. Results The effects of MWA and CRA appeared to be similar to those of RFA, but lower rates of LTR and higher rates of CTA in large tumors compared with RFA were reported (P < 0.05). CTA rates were lower in patients treated with PEI (odds ratio [OR] 0.16, 95% confidence interval [CI] 0.06–0.42), and higher in those treated with PEI plus RFA (OR 2.28, 95% CI 1.19–3.60), with an increased incidence of fever (P < 0.05). LSA resulted in lower CTA rates (OR 0.32, 95% CI 0.13–0.81) and OS (hazard ratio 1.47, 95% CI 1.01–2.15), with a lower incidence of complications. Conclusions Compared with RFA, identical effects were found in MWA and CRA groups. Fewer complications were observed in PEI and LSA group. PEI plus RFA appeared more effective, with a higher rate of complications. Well-designed randomized controlled trials are further needed to confirm above results.
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Affiliation(s)
- Wen Luo
- Department of Ultrasound, Xijing Hospital, Fourth Military Medical University, No. 127 Changle Xi Road, Xi'an, China
| | - Yunfei Zhang
- Research Institution of Bone tumor, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Guangbin He
- Department of Ultrasound, Xijing Hospital, Fourth Military Medical University, No. 127 Changle Xi Road, Xi'an, China
| | - Ming Yu
- Department of Ultrasound, Xijing Hospital, Fourth Military Medical University, No. 127 Changle Xi Road, Xi'an, China
| | - Minjuan Zheng
- Department of Ultrasound, Xijing Hospital, Fourth Military Medical University, No. 127 Changle Xi Road, Xi'an, China
| | - Liwen Liu
- Department of Ultrasound, Xijing Hospital, Fourth Military Medical University, No. 127 Changle Xi Road, Xi'an, China.
| | - Xiaodong Zhou
- Department of Ultrasound, Xijing Hospital, Fourth Military Medical University, No. 127 Changle Xi Road, Xi'an, China.
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138
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Zhang Z, Wang X, Li R, Xue W, Zhai R, Liu L, Liu Y, Jin H. Prevalence, resistance, and extended-spectrum beta-lactamases among Salmonella from patients in northeast China. J Infect Dev Ctries 2017. [DOI: 10.3855/jidc.9218] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Introduction: Salmonella is an important infection in Liaoning Province. Serotype and resistance levels are poorly studied. Knowledge of cephalosporin-resistant genes is needed to provide information to support the clinical diagnosis and to guide therapy.
Methodology: A total of 172 isolates were collected from January 2009 to March 2014. Resistance to cephalosporin, fluoroquinolones, and other conventional first-line antibiotics was detected using the disk diffusion and agar dilution methods. The relatedness of isolates with the same serotype was analyzed by pulsed-field gel electrophoresis (PFGE). Genes encoding extended-spectrum β-lactamase enzymes (blaCTX-M, blaTEM, blaSHV, and blaOXA) were identified by polymerase chain reaction (PCR) and sequencing in cephalosporin-resistant strains.
Results: S. Enteritidis, 1,4,[5],12:i:-, and S .Typhimurium were the most common serotypes. The resistance rate of Salmonella to conventional first-line antibiotics sulfamethoxazole-trimethoprim, tetracycline, chloramphenicol, and ampicillin was 21%,33%,37%, and 55%,respectively. To fluoroquinolones (gatixacin, levofloxacin, and ciprofloxacin), the resistance rates were 7%,18%, and 23%, respectively, whereas for extended-spectrum cephalosporins(ceftazidime, cefepime, and ceftriaxone), there sistance rates were 4%,8%, and 9%. In total, 14blaCTX-M, 14 blaTEM-1, and 1blaOXA-1 were found in 15 Salmonella isolates resistant to cephalosporin. No blaSHVwas detected. The blaCTX-M-55 gene was the most frequently encountered gene. The blaCTX-M-65 gene from S. Enteritidis is described for first time in Salmonella from humans. Results of PFGE indicated strong similarity among Salmonella isolates in Liaoning Province.
Conclusions: Extended-spectrum cephalosporins are the first choice for the treatment of infection with Salmonella, but blaCTX-M-encoded resistance, including blaCTX-M-65, is present.
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139
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Meng X, Li J, Yu M, Yang J, Zheng M, Zhang J, Sun C, Liang H, Liu L. Transplantation of mesenchymal stem cells overexpressing IL10 attenuates cardiac impairments in rats with myocardial infarction. J Cell Physiol 2017; 233:587-595. [DOI: 10.1002/jcp.25919] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2017] [Accepted: 03/17/2017] [Indexed: 01/14/2023]
Affiliation(s)
- Xin Meng
- Department of UltrasonographyXijing HospitalFourth Military Medical UniversityXi'anShaanxiChina
| | - Jianping Li
- Department of Radiation OncologyXijing HospitalFourth Military Medical UniversityXi'anShaanxiChina
| | - Ming Yu
- Department of UltrasonographyXijing HospitalFourth Military Medical UniversityXi'anShaanxiChina
| | - Jian Yang
- Department of Cardiovascular SurgeryXijing HospitalFourth Military Medical UniversityXi'anShaanxiChina
| | - Minjuan Zheng
- Department of UltrasonographyXijing HospitalFourth Military Medical UniversityXi'anShaanxiChina
| | - Jinzhou Zhang
- Department of Cardiovascular SurgeryXijing HospitalFourth Military Medical UniversityXi'anShaanxiChina
| | - Chao Sun
- Department of UltrasonographyXijing HospitalFourth Military Medical UniversityXi'anShaanxiChina
| | - Hongliang Liang
- Department of Cardiovascular SurgeryXijing HospitalFourth Military Medical UniversityXi'anShaanxiChina
| | - Liwen Liu
- Department of UltrasonographyXijing HospitalFourth Military Medical UniversityXi'anShaanxiChina
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140
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Song LM, Liu LW, Yang YG, Xi JT, Guo QH, Zhu XJ. Online detection of distilled spirit quality based on laser Raman spectroscopy. J Inst Brew 2017. [DOI: 10.1002/jib.399] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Li-mei Song
- Key Laboratory of Advanced Electrical Engineering and Energy Technology; Tianjin Polytechnic University; Tianjin 300387 China
| | - Li-wen Liu
- Key Laboratory of Advanced Electrical Engineering and Energy Technology; Tianjin Polytechnic University; Tianjin 300387 China
| | - Yan-gang Yang
- Tianjin University of Technology and Education; Tianjin 300222 China
| | - Jiang-tao Xi
- School of Electrical, Computer and Telecommunications Engineering; University of Wollongong; Keiraville 2500 Australia
| | - Qing-hua Guo
- Key Laboratory of Advanced Electrical Engineering and Energy Technology; Tianjin Polytechnic University; Tianjin 300387 China
| | - Xin-jun Zhu
- Key Laboratory of Advanced Electrical Engineering and Energy Technology; Tianjin Polytechnic University; Tianjin 300387 China
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141
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Xu L, Sun C, Zhu X, Liu W, Ta S, Zhao D, Wang F, Liu L. Characterization of left ventricle energy loss in healthy adults using vector flow mapping: Preliminary results. Echocardiography 2017; 34:700-708. [PMID: 28295565 DOI: 10.1111/echo.13504] [Citation(s) in RCA: 11] [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] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Energy loss (EL) is a new quantitative hemodynamic index based on vector flow mapping (VFM). This study aimed to characterize EL of the left ventricle (LV) in healthy adults. METHODS Fifty-one healthy adults were enrolled in this study. EL of LV was analyzed frame by frame using color Doppler images of a standard apical three-chamber dynamic view on an offline VFM workstation. The average EL of systole and diastole was calculated, and the results were averaged over three cardiac cycles. RESULTS The average EL for systole and diastole was 11.07±5.82J/m/s and 11.58±5.54 J/m/s, respectively. Multivariate regression analysis showed that the aortic velocity time integral (AOVTI), A-wave peak velocity, and isovolumetric contraction time (IVCT) were independently associated with the average systolic EL. E-wave peak velocity, height, and IVCT were independently associated with the average diastolic EL. For females, the average systolic and diastolic EL was 12.66±7.06J/m/s and 13.90±5.37J/m/s, respectively. For males, the systolic and diastolic EL was 9.29±3.33J/m/s and 8.97±4.55J/m/s, respectively. CONCLUSIONS Energy loss in LV changes regularly during the cardiac cycle. The average systolic EL has a high positive correlation with AOVTI, whereas the average diastolic EL has with E-wave peak velocity. Women have higher average EL than men in both systole and diastole. By recognizing the EL characterization of healthy adults, the variation in EL may reflect cardiac dysfunction. These were preliminary results, and thus, the clinical implications of EL warrant further investigation.
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Affiliation(s)
- Lei Xu
- Ultrasound Department, Xijing Hospital, Xi'an, China
| | - Chao Sun
- Ultrasound Department, Xijing Hospital, Xi'an, China
| | - Xiaoli Zhu
- Ultrasound Department, Xijing Hospital, Xi'an, China
| | - Weihua Liu
- Ultrasound Department, Xijing Hospital, Xi'an, China.,Ultrasound Department, The Third Hospital of People's Liberation Army, Bao Ji, China
| | - Shengjun Ta
- Ultrasound Department, Xijing Hospital, Xi'an, China.,Ultrasound Department, Yan'an People's Hospital, Yan'an, China
| | - Dan Zhao
- Ultrasound Department, Xijing Hospital, Xi'an, China.,Ultrasound Department, Ningxia Medical University, Yin Chuan, China
| | - Feifei Wang
- Ultrasound Department, Xijing Hospital, Xi'an, China
| | - Liwen Liu
- Ultrasound Department, Xijing Hospital, Xi'an, China
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142
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Yang Q, Tang P, Liu L, Ge S, Zhou X. Abstract B69: Antitumor effects of combining hemocoagulase with the blocking-microvascular action of microbubbles enhanced ultrasound cavitation on rabbit VX2 liver tumors. Cancer Immunol Res 2017. [DOI: 10.1158/2326-6074.tumimm16-b69] [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
Substantial effort is being directed toward investigating the use of microbubble enhanced ultrasound cavitation (MEUC) to promote penetrate vascular wall and disrupting circulation in liver tumor. In this study we propose and investigate a new method for combining MEUC with hemocoagulase (HC) atrox, which is effectively a vascular targeting to induce embolism effects and combine these with an antiangiogenic treatment strategy. HC was administered was inserted precisely into the tumor under the guidance of real- time ultrasound with a 21-gauge needle. MEUC were conducted at1 MHz frequency probe (with a 400-cycle pulse length and a pulse repetition frequency of 9 Hz) at peak positive pressure of 1 MPa in combination with the commercial microbubble agent SonoVue. MEUC treatments were performed on 10 min on and off periods and HC was administered for 1KU. Rabbits were implanted VX2 tumor mass to establish a liver tumor model. 7 days after tumor implantation, rabbits presented with single liver tumor were randomly divided into 4 study groups: (1) control group were given injections of saline use micro- pump intravenously. (2) HC only injection. (3) MEUC treatment. (4) MEUC+HC treatment. The MEUC induced an acute reduction of blood flow as confirmed with contrast enhanced ultrasound (CEUS) imaging. QontraXt software quantitative analysis time intensity curve (TIC) of the tumor blood perfusion and microvascular changes. The MEUC+HC treatment group showed significant growth inhibition relative to the MEUC-only (p < 0.01) and HC-only treatment groups (p < 0.01). These results indicate the feasibility of a new approach to combining microbubble enhanced ultrasound cavitation with hemocoagulase.
Citation Format: Qian Yang, Peng Tang, Liwen Liu, Shuping Ge, Xiaodong Zhou. Antitumor effects of combining hemocoagulase with the blocking-microvascular action of microbubbles enhanced ultrasound cavitation on rabbit VX2 liver tumors. [abstract]. In: Proceedings of the AACR Special Conference on Tumor Immunology and Immunotherapy; 2016 Oct 20-23; Boston, MA. Philadelphia (PA): AACR; Cancer Immunol Res 2017;5(3 Suppl):Abstract nr B69.
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Affiliation(s)
- Qian Yang
- 1Xijing Hospital Ultrasound Dept., Xi'an, Shaanxi, China,
| | - Peng Tang
- 2Xijing hospital Orthopedics Dept., Xi'an, Shaanxi, China,
| | - Liwen Liu
- 1Xijing Hospital Ultrasound Dept., Xi'an, Shaanxi, China,
| | - Shuping Ge
- 3St. Christopher's Children Hospital, Philadelphia, PA
| | - Xiaodong Zhou
- 1Xijing Hospital Ultrasound Dept., Xi'an, Shaanxi, China,
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143
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Affiliation(s)
- Li-mei Song
- Key Laboratory of Advanced Electrical Engineering and Energy Technology, School of Electrical Engineering and Automation, Tianjin Polytechnic University, Tianjin, China
| | - Li-wen Liu
- Key Laboratory of Advanced Electrical Engineering and Energy Technology, School of Electrical Engineering and Automation, Tianjin Polytechnic University, Tianjin, China
| | - Jin-yi Li
- Key Laboratory of Advanced Electrical Engineering and Energy Technology, School of Electrical Engineering and Automation, Tianjin Polytechnic University, Tianjin, China
| | - Yan-gang Yang
- School of Mechanical Engineering, Tianjin University of Technology and Education, Tianjin, China
| | - Jiang-tao Xi
- School of Electrical, Computer and Telecommunications Engineering, University of Wollongong, Keiraville, Australia
| | - Qing-hua Guo
- Key Laboratory of Advanced Electrical Engineering and Energy Technology, School of Electrical Engineering and Automation, Tianjin Polytechnic University, Tianjin, China
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144
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Chao S, Fu J, He G, Hu R, Liu F, Guo R, Ye C, He J, Liu L, liwen L. GW27-e0505 Echocardiography-guided percutaneous per-apical laser ablation of ovine ventricular septum --- mid-term effects. J Am Coll Cardiol 2016. [DOI: 10.1016/j.jacc.2016.07.215] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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145
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Luo XB, Liu Z, Xu L, Wang Y, Zhu XW, Zhang W, Chen W, Zhu YL, Su XJ, Everlyne M, Liu LW. Characterization of RsMYB28 and RsMYB29 transcription factor genes in radish (Raphanus sativus L.). Genet Mol Res 2016; 15:gmr8381. [PMID: 27706769 DOI: 10.4238/gmr.15038381] [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] [Indexed: 11/03/2022]
Abstract
Glucosinolates (GSLs) are important secondary metabolites in Brassicaceae plants. Previous studies have mainly focused on GSL contents, types, and biosynthesis-related genes, but the molecular characterization patterns of GSL biosynthesis-related transcription factors remain largely unexplored in radish (Raphanus sativus L.). To isolate transcription factor genes regulating the GSL biosynthesis, genomic DNA and cDNA sequences of RsMYB28 and RsMYB29 genes were isolated in radish. Two R2R3-MYB domains were identified in the deduced amino acid sequences. Subcellular localization and yeast-one hybrid assays indicated that both the RsMYB28 and RsMYB29 genes were located in the nucleus and possessed transactivation activity. Reverse transcription quantitative analysis showed that the RsMYB28 and RsMYB29 genes were expressed in seeds, leaves, stems, and roots at the seedling, taproot thickening, and mature stages. Both genes were highly expressed during the seedling and taproot thickening stages. The expression level of RsMYB28 was found to be up-regulated following wounding, glucose, and abscisic acid treatments, whereas RsMYB29 was up-regulated following wounding and methyl jasmonate treatments. These results provide insights into the biological function and characterization of the RsMYB28 and RsMYB29 genes, and facilitate further dissection of the molecular regulatory mechanism underlying the GSL biosynthesis in radish.
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Affiliation(s)
- X B Luo
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - Z Liu
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - L Xu
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - Y Wang
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - X W Zhu
- Department of Plant Sciences, North Dakota State University, Fargo, ND, USA
| | - W Zhang
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - W Chen
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - Y L Zhu
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - X J Su
- Institute of Vegetable Sciences, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - M Everlyne
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - L W Liu
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, China
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146
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Tao B, Gao H, Zheng M, Luo Z, Liu L, Bai W, Wang J, Liu D, Ma S, Luo Z, Gao L, Wang Y, Cao F. Preclinical modeling and multimodality imaging of chronic myocardial infarction in minipigs induced by novel interventional embolization technique. EJNMMI Res 2016; 6:59. [PMID: 27393423 PMCID: PMC4938836 DOI: 10.1186/s13550-016-0214-7] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Accepted: 06/29/2016] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND This study was designed to establish a chronic myocardial infarction (MI) model in minipigs with a novel coronary sequential balloons-sponge embolism technique. METHODS Eighteen healthy minipigs (25-30 kg) were randomly divided into three groups for left anterior descending artery (LAD) occlusion: conventional balloon occlusion group (BO group, temporary balloon occlusion for 60 mins), half-balloon embolism group (HB group), and sequential balloon-balloon-sponge embolism group (BBS group, two half-balloons with one sponge as the embolism clot). The incidence of ventricular fibrillation (VF), total mortality, operating time, and vascular recanalization 3 months post-MI was recorded and compared. Echocardiography, multimodality nuclear medical imaging, and histology staining were applied for the evaluation of infarction. RESULTS Thirteen out of 18 minipigs survived after the operation, while 5 animals died with VF (3 in the BO group, 1 in the HB group, and 1 in the BBS group), with an 83.3 % (5/6 minipigs) acute procedural survival rate in embolism groups. The operating duration was 60.0 ± 0.5 mins, 21.4 ± 5.2 mins, and 31.2 ± 4.7 mins in the three groups, respectively. LAD recanalization was found in three animals of the HB group but none in the BBS group by angiography follow-up. The infarct sizes were more stable and larger in the HB group and BBS group than that in the BO group (P < 0.05, n = 13). CONCLUSIONS The method of sequential balloons-sponge embolization could induce myocardial infarction with consistent and sustained embolization and gain higher operation success rate and better repeatability in minipigs, which holds a promising method for preclinical MI study.
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Affiliation(s)
- Bo Tao
- Department of Cardiology, Chinese PLA General Hospital, Fuxing Street 28#, Haidian District, Beijing, 100853, China.,Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Haokao Gao
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Minwen Zheng
- Department of Radiology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Zhonghua Luo
- Department of Radiology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Liwen Liu
- Department of Ultrasonography, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Wei Bai
- Department of Ultrasonography, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Jing Wang
- Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Daliang Liu
- Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Sai Ma
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Zhenli Luo
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Lei Gao
- Department of Cardiology, Chinese PLA General Hospital, Fuxing Street 28#, Haidian District, Beijing, 100853, China
| | - Yabin Wang
- Department of Cardiology, Chinese PLA General Hospital, Fuxing Street 28#, Haidian District, Beijing, 100853, China
| | - Feng Cao
- Department of Cardiology, Chinese PLA General Hospital, Fuxing Street 28#, Haidian District, Beijing, 100853, China.
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147
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Wang W, Drasgow F, Liu L. Classification Accuracy of Mixed Format Tests: A Bi-Factor Item Response Theory Approach. Front Psychol 2016; 7:270. [PMID: 26973568 PMCID: PMC4770050 DOI: 10.3389/fpsyg.2016.00270] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 02/12/2016] [Indexed: 11/13/2022] Open
Abstract
Mixed format tests (e.g., a test consisting of multiple-choice [MC] items and constructed response [CR] items) have become increasingly popular. However, the latent structure of item pools consisting of the two formats is still equivocal. Moreover, the implications of this latent structure are unclear: For example, do constructed response items tap reasoning skills that cannot be assessed with multiple choice items? This study explored the dimensionality of mixed format tests by applying bi-factor models to 10 tests of various subjects from the College Board's Advanced Placement (AP) Program and compared the accuracy of scores based on the bi-factor analysis with scores derived from a unidimensional analysis. More importantly, this study focused on a practical and important question-classification accuracy of the overall grade on a mixed format test. Our findings revealed that the degree of multidimensionality resulting from the mixed item format varied from subject to subject, depending on the disattenuated correlation between scores from MC and CR subtests. Moreover, remarkably small decrements in classification accuracy were found for the unidimensional analysis when the disattenuated correlations exceeded 0.90.
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Affiliation(s)
- Wei Wang
- Department of Psychology, University of Central Florida Orlando, FL, USA
| | - Fritz Drasgow
- Department of Psychology and School of Labor and Employment Relations, University of Illinois at Urbana-Champaign Champaign, IL, USA
| | - Liwen Liu
- Department of Psychology, University of Illinois at Urbana-ChampaignChampaign, IL, USA; American Institutes for ResearchWashington, DC, USA
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148
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He G, Sun C, Zhang X, Zuo L, Qin H, Zheng M, Zhou X, Liu L. Echocardiography-guided percutaneous per-ventricular laser ablation of ventricular septum: in vivo study in a canine model. Lasers Med Sci 2016; 31:645-51. [PMID: 26861985 PMCID: PMC4851689 DOI: 10.1007/s10103-016-1881-3] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 01/14/2016] [Indexed: 10/31/2022]
Abstract
Surgical myectomy and ethanol ablation are established intervention strategies for left ventricular outflow obstruction in hypertrophic cardiomyopathy. Safety and efficacy limitations of these interventions call for a minimally invasive, potentially safer, and more efficacious strategy. In this study, we aimed to evaluate the feasibility of echocardiography-guided percutaneous per-ventricular laser ablation of a ventricular septum in a canine model. Six domestic dogs were chosen for the study. A 21G needle was inserted into the right ventricle with its tip reaching the targeted basal to mid-septum, after which laser ablation was performed as follows: 1-W laser for 3 min (180 J) at the basal segment and 5 min (300 J) at middle segment of the septum, respectively. Echocardiography, blood chemistry tests, and pathology examination were performed to assess the results of laser ablation. No death or major complications, i.e., tamponade, pericardial effusion, or ventricular fibrillation, occurred. The laser-ablated areas were well demarcated in the results of the pathological examination. The diameters of the ablated regions were 4.42 ± 0.57 and 5.28 ± 0.83 mm for 3 and 5 min ablation, respectively. Pre-ablation and post-ablation, cardiac enzymes were found to increase significantly while no significant differences were found among M-mode, 2D (LVEF), pulsed-wave (PW) Doppler, and tissue Doppler imaging (TDI) measurements. Contrast echocardiography confirmed the perfusion defects in the ablated regions. Microscopically, the ablated myocardium showed coagulative changes and a sparse distribution of disappearing nuclei and an increase in eosinophil number were observed. Our study suggests that percutaneous and per-ventricular laser ablation of the septum is feasible, potentially safe and efficacious, and warrants further investigation and validation.
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Affiliation(s)
- Guangbin He
- Ultrasound Department, Xijing Hospital, Fourth Military Medical University, Changle West Road 15 Hao, Xi'an, ShaanXi Province, 710032, China
| | - Chao Sun
- Ultrasound Department, Xijing Hospital, Fourth Military Medical University, Changle West Road 15 Hao, Xi'an, ShaanXi Province, 710032, China
| | - Xiangkong Zhang
- Ultrasound Department, Xijing Hospital, Fourth Military Medical University, Changle West Road 15 Hao, Xi'an, ShaanXi Province, 710032, China.,Ultrasound Department, Ningxia Medical University, Yin Chuan, China
| | - Lei Zuo
- Ultrasound Department, Xijing Hospital, Fourth Military Medical University, Changle West Road 15 Hao, Xi'an, ShaanXi Province, 710032, China
| | - Haiying Qin
- Ultrasound Department, Xijing Hospital, Fourth Military Medical University, Changle West Road 15 Hao, Xi'an, ShaanXi Province, 710032, China
| | - Minjuan Zheng
- Ultrasound Department, Xijing Hospital, Fourth Military Medical University, Changle West Road 15 Hao, Xi'an, ShaanXi Province, 710032, China
| | - Xiaodong Zhou
- Ultrasound Department, Xijing Hospital, Fourth Military Medical University, Changle West Road 15 Hao, Xi'an, ShaanXi Province, 710032, China.
| | - Liwen Liu
- Ultrasound Department, Xijing Hospital, Fourth Military Medical University, Changle West Road 15 Hao, Xi'an, ShaanXi Province, 710032, China.
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149
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Shao H, Zhang Y, Liu L, Ma Z, Zuo L, Ye C, Wei X, Sun C, Tao L. [Relationship between electrocardiographic and genetic mutation (MYH7-H1717Q, MYLK2-K324E and KCNQ1-R190W) phenotype in patients with hypertrophic cardiomyopathy]. Zhonghua Xin Xue Guan Bing Za Zhi 2016; 44:50-4. [PMID: 26813553 DOI: 10.3760/cma.j.issn.0253-3758.2016.01.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To explore the relationship between electrocardiographic (ECG) and genetic mutations of patients with hypertrophic cardiomyopathy (HCM), and early ECG changes in HCM patients. METHODS Clinical, 12-lead ECG and echocardiographic examination as well as genetic examinations were made in a three-generation Chinses HCM pedigree with 8 family members (4 males). The clinical characterization and ECG parameters were analyzed and their relationship with genotypes in the family was explored. RESULTS Four missense mutations (MYH7-H1717Q, MYLK2-K324E, KCNQ1-R190W, TMEM70-I147T) were detected in this pedigree. The proband carried all 4 mutations and 5 members carried 2 mutations. Corrected QTc interval of KCNQ1-H1717Q carriers was significantly prolonged and was consistent with the ECG characterization of long QT syndrome. MYLK2-K324E and KCNQ1-R190W carriers presented with Q wave and(or) depressed ST segment, as well as flatted or reversed T waves in leads from anterolateral and inferior ventricular walls. ECG results showed ST segment depression, flat and inverted T wave in the gene mutation carriers with normal echocardiographic examination results. ECG and echocardiographic results were normal in TMEM70-I147T mutation carrier. CONCLUSIONS The combined mutations of the genes associated with cardiac ion channels and HCM are linked with the ECG phenotype changes in this HCM pedigree. The variations in ECG parameters due to the genetic mutation appear earlier than the echocardiography and clinical manifestations. Variation in ECG may become one of the indexes for early diagnostic screening and disease progression of the HCM gene mutation carriers.
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Affiliation(s)
- Hong Shao
- Department of Electrocardiogram, Xijing Hospital, Xi'an 710032, China
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150
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Bunnell BE, Beidel DC, Liu L, Joseph DL, Higa-McMillan C. The SPAIC-11 and SPAICP-11: Two brief child- and parent-rated measures of social anxiety. J Anxiety Disord 2015; 36:103-9. [PMID: 26500188 PMCID: PMC4658224 DOI: 10.1016/j.janxdis.2015.10.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 09/17/2015] [Accepted: 10/01/2015] [Indexed: 10/22/2022]
Abstract
The Social Phobia and Anxiety Inventory for Children-11 (SPAIC-11) and Social Phobia and Anxiety Inventory for Children's Parents-11 (SPAICP-11) were developed as brief versions of the Social Phobia and Anxiety Inventory--Child and Parent Versions via item response theory (IRT) using child and parent reports of social anxiety. A sample of 496 children was analyzed using IRT analyses, revealing 11 items that exhibit measurement equivalence across parent and child reports. Descriptive and psychometric data are provided for the child, parent, and combined total scores. Discriminant validity was demonstrated using logistic regression and receiver operating characteristic curve analyses. The SPAIC-11 and SPAICP-11 are psychometrically sound measures that are able to measure social anxiety invariantly across children and their parents. These brief measures which include combined parent and child perception of the child's social anxiety may provide notable benefits to clinical research.
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Affiliation(s)
- Brian E. Bunnell
- University of Central Florida, Orlando, FL,Medical University of South Carolina, Charleston, SC,Ralph H. Johnson VAMC, Charleston, SC
| | | | - Liwen Liu
- American Institutes for Research, Washington, DC, United States.
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