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Ling X, Hou Y, Jia X, Lan Y, Wu X, Wu J, Jie W, Liu H, Huang S, Wan Z, Li T, Guo J, Liang T. Characterization of cardiac involvement in patients with LMNA splice-site mutation-related dilated cardiomyopathy and sudden cardiac death. Front Genet 2024; 14:1291411. [PMID: 38259623 PMCID: PMC10800368 DOI: 10.3389/fgene.2023.1291411] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Accepted: 12/18/2023] [Indexed: 01/24/2024] Open
Abstract
Introduction: LMNA splicing mutations occur in 9.1% of cases with cardiac involvement cases, but the phenotype and severity of disease they cause have not yet been systematically studied. The aim of this study was to understand the clinical and pathogenic characteristics of the LMNA splice-site mutation phenotype in patients with LMNA-related dilated cardiomyopathy (DCM) and sudden cardiac death (SCD). Methods and Results: First, we reported a novel family with LMNA-related DCM and SCD, and the clinical characteristics of all current patients with LMNA splicing mutations were further summarized through the ClinVar database. Seventeen families with a total of 134 individuals, containing a total of 15 LMNA splicing mutation sites, were enrolled. A total of 42 subjects (31.3%) had SCD. Compared without with the non-DCM group (n = 56), the patients within the DCM group (n = 78) presented a lower incidence of atrioventricular block (AVB) (p = 0.015) and a higher incidence rates of non-sustained ventricular tachycardia (p = 0.004),) and implantable cardioverter defibrillator (ICD) implantation (p = 0.005). Kaplan‒Meier survival analysis showed that the patients with pacemaker (PM) implantation had a significantly reduced the occurrence of SCD compared to patientswith those without PM implantation (log-rank p < 0.001), while there was no significant difference in ICD implantation between the two groups (log-rank p = 0.73). Second, we identified the family that we reported with a mutation in an LMNA c.513+1 G>A mutation in the reported family, and pathogenic prediction analysis showed that the mutation site was extremely harmful. Next, we conducted gene expression levels and cardiac pathological biopsy studies on the proband of this family. We found that the expression of normal LMNA mRNA from the proband was significantly downregulated in peripheral blood mononuclear cells than incompared with healthy individuals. Finally, we comprehensively summarized the pathological characteristics of LMNA-related DCM, including hypertrophy, atrophy, fibrosis, white blood cell infiltration, intercalated disc remodeling, and downregulation of desmin and connexin 43 (Cx43) expression. Discussion: Above all, Cardiaccardiac involvement in patients with LMNA splice-site mutation presented with a high rate of SCD. Implanting a pacemaker significantly reduced the SCD rate in non-DCM patients with AVB. The pathogenic characterization was not only haveinvolved suppressed the expression of the healthy LMNA allele, but was also associated with abnormal expression and distribution of desmin and Cx43.
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Affiliation(s)
- Xuebin Ling
- Department of Cardiovascular Medicine and Hainan Provincial Key Laboratory for Tropical Cardiovascular Diseases Research and Hainan Engineering Research Center for Biological Sample Resources of Major Diseases, The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Yanjun Hou
- Department of Cardiovascular Surgery, The Second Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Xingyu Jia
- Department of Cardiovascular Medicine and Hainan Provincial Key Laboratory for Tropical Cardiovascular Diseases Research and Hainan Engineering Research Center for Biological Sample Resources of Major Diseases, The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Youling Lan
- Department of Cardiovascular Medicine and Hainan Provincial Key Laboratory for Tropical Cardiovascular Diseases Research and Hainan Engineering Research Center for Biological Sample Resources of Major Diseases, The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Xiaoping Wu
- Department of Cardiovascular Medicine and Hainan Provincial Key Laboratory for Tropical Cardiovascular Diseases Research and Hainan Engineering Research Center for Biological Sample Resources of Major Diseases, The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Julan Wu
- Department of Pathology, Hainan Women and Children Medical Center, Hainan Medical University, Haikou, China
| | - Wei Jie
- Department of Cardiovascular Medicine and Hainan Provincial Key Laboratory for Tropical Cardiovascular Diseases Research and Hainan Engineering Research Center for Biological Sample Resources of Major Diseases, The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Hui Liu
- Department of Cardiovascular Medicine and Hainan Provincial Key Laboratory for Tropical Cardiovascular Diseases Research and Hainan Engineering Research Center for Biological Sample Resources of Major Diseases, The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Shan Huang
- Department of Cardiovascular Medicine and Hainan Provincial Key Laboratory for Tropical Cardiovascular Diseases Research and Hainan Engineering Research Center for Biological Sample Resources of Major Diseases, The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Zhenling Wan
- Department of Pathology, Hainan Women and Children Medical Center, Hainan Medical University, Haikou, China
| | - Tianfa Li
- Department of Cardiovascular Medicine and Hainan Provincial Key Laboratory for Tropical Cardiovascular Diseases Research and Hainan Engineering Research Center for Biological Sample Resources of Major Diseases, The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Junli Guo
- Department of Cardiovascular Medicine and Hainan Provincial Key Laboratory for Tropical Cardiovascular Diseases Research and Hainan Engineering Research Center for Biological Sample Resources of Major Diseases, The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Tiebiao Liang
- Department of Cardiovascular Medicine, People’s Hospital of Wanning, Wanning, China
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Ling X, Lin C, Liu J, He Y, Yang Y, Lu N, Jie W, Liu Y, Chen S, Guo J. Prognostic value of the prognostic nutritional index for patients with acute myocardial infarction undergoing percutaneous coronary intervention with variable glucose metabolism statuses: a retrospective cohort study. Diabetol Metab Syndr 2023; 15:207. [PMID: 37875955 PMCID: PMC10594916 DOI: 10.1186/s13098-023-01160-4] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 09/04/2023] [Indexed: 10/26/2023] Open
Abstract
BACKGROUND The prognostic nutritional index (PNI) and different glucose metabolisms have been separately reported to be correlated with long-term prognosis in patients with acute myocardial infarction (AMI) undergoing percutaneous coronary intervention (PCI). However, PNI application in patients with an impaired glucose metabolism has not been well validated, especially in pre-diabetic patients. This study evaluated whether PNI influences a long-term risk of mortality along different glucose metabolism statuses. METHODS A total of 17,697 patients with AMI and a history of PCI were enrolled in this retrospective observational cohort study from January 2007 to December 2020. Three subgroups with different glucose metabolism statuses, including normal glucose regulation (NGR), pre-diabetes mellitus (pre-DM), and diabetes mellitus (DM), were divided into three groups according to the tertiles of PNI, respectively. RESULTS All-cause mortality occurred in 2613 (14.8%) patients within a median of 4.1 years of follow-up. Upon analyzing the Kaplan-Meier plots for the NGR, pre-DM, and DM groups, the incidence of all-cause or cardiovascular mortality in the low PNI (PNI-L, ≤ 42.7) subgroup was significantly higher than that in the median PNI (PNI-M, > 42.7 and ≤ 48.2) and high PNI (PNI-H, > 48.2) subgroups (all, P < 0.001). After adjusting for confounding factors, the hazard ratio (HR) for all-cause mortality in the PNI-L group significantly increased compared to that in the PNI-H subgroups of the NGR group (HR, 1.35; 95% CI 1.14-1.66; P < 0.001), pre-DM group (HR, 1.29; 95% CI 1.02-1.62; P < 0.001), and DM group (HR, 1.36; 95% CI 1.13-1.63; P < 0.001). Given that there was evidence of interactions between PNI and different glucose statuses (P for interaction < 0.001), patients were divided into nine subgroups, and we found that DM patients with PNI-L statuses had the highest risk of all-cause mortality compared to NGR patients with PNI-H statuses (HR, 1.69; 95% CI 1.42-2.01; P < 0.001). CONCLUSION Lower PNI is a significant and independent risk factor for all-cause mortality in AMI patients undergoing PCI with different glucose metabolism statuses, and this risk further increases with DM compared to NGR or pre-DM statuses.
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Affiliation(s)
- Xuebin Ling
- Hainan Provincial Key Laboratory for Tropical Cardiovascular Diseases Research, Department of Cardiovascular Medicine of The First Affiliated Hospital, Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou, China
| | - Chufen Lin
- Department of Health Medicine, The Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, China
| | - Jin Liu
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yibo He
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yongquan Yang
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Na Lu
- Hainan Provincial Key Laboratory for Tropical Cardiovascular Diseases Research, Department of Cardiovascular Medicine of The First Affiliated Hospital, Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou, China
| | - Wei Jie
- Hainan Provincial Key Laboratory for Tropical Cardiovascular Diseases Research, Department of Cardiovascular Medicine of The First Affiliated Hospital, Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou, China
| | - Yong Liu
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.
| | - Shiqun Chen
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.
| | - Junli Guo
- Hainan Provincial Key Laboratory for Tropical Cardiovascular Diseases Research, Department of Cardiovascular Medicine of The First Affiliated Hospital, Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou, China.
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Wu YF, Ling X, Yu SJ, Blomain E, Bagshaw HP, Buyyounouski MK. A Pilot Study of an Interactive Virtual Tour Tool for Patient Education Prior to Undergoing High-Dose Rate Brachytherapy for Prostate Cancer. Int J Radiat Oncol Biol Phys 2023; 117:e451. [PMID: 37785453 DOI: 10.1016/j.ijrobp.2023.06.1637] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) High-dose rate (HDR) brachytherapy for treatment of prostate cancer is an invasive procedure that can be associated with patient anxiety. Patient education regarding the procedure can allow for better informed decision-making while also decreasing anxiety. We sought to develop and assess the utility of an interactive virtual tour tool that portrays a 360-degree view of the HDR brachytherapy patient experience, with the goals of providing patient education, decreasing patient anxiety, and assisting in wayfinding on the procedure day. MATERIALS/METHODS Using a 360-degree camera, we captured multiple photographs that depicted the various hospital locations that a patient would navigate through on the day of their HDR brachytherapy procedure, including the medical center lobby, pre-operative/post-operative units, and the brachytherapy suite. We then compiled these 360-degree photographs using virtual tour software, to allow users to navigate throughout the locations. We added informational text, spoken audio, and videos associated with key staff, objects, and the brachytherapy procedure that allow the users to interact with and learn about these various components within the virtual tour. This tool was accessible via a website link on a computer, tablet, or smartphone and was provided at the time of consult to patients who were planning to undergo HDR brachytherapy for prostate cancer. A questionnaire assessing the tool's ease of use, educational value, wayfinding utility, and ability to improve anxiety and treatment decision-making was conducted prior to and after their procedure. RESULTS Preliminary feedback from healthy volunteers is highly positive, with users finding that the tool is easily accessible, user-friendly, improves understanding of HDR brachytherapy, simulates the treatment experience accurately, helps with wayfinding, and has the potential to decrease patient anxiety and increase comfort with the treatment decision. Data from the patient questionnaires are being collected and will be analyzed. CONCLUSION A 360-degree virtual tour tool allows for an easily accessible, immersive, and interactive method of patient education on an invasive, anxiety-associated procedure. This has the potential to decrease patient anxiety and improve comfort regarding treatment decision-making. This tool may be applied toward other relatively involved radiotherapy modalities, including gynecologic HDR brachytherapy, respiratory-gated treatments, and CyberKnife stereotactic radiosurgery.
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Affiliation(s)
- Y F Wu
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA
| | - X Ling
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA
| | - S J Yu
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA
| | - E Blomain
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA
| | - H P Bagshaw
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA
| | - M K Buyyounouski
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA
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Ling X, Zhong R, Cao S, Zhang L, Xu J, Zhang B, Zhang X, Wang H, Han B, Zhong H. 45P DCVAC/LuCa with chemotherapy in patients with stage IV, non-squamous NSCLC without EGFR/ALK aberrations: Five-year survival update. J Thorac Oncol 2023. [DOI: 10.1016/s1556-0864(23)00299-x] [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: 04/03/2023]
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Ling X, Wang J, Qin X, Lin C, Jie W, Chen Y, Fu D, Yang Y, Meng Q, Lin J, Liu H, Li T, Guo J. Predictive value of TRPV2 expression from peripheral blood mononuclear cells on the early recurrence of atrial fibrillation after radiofrequency catheter ablation. BMC Cardiovasc Disord 2022; 22:546. [PMID: 36513971 PMCID: PMC9746099 DOI: 10.1186/s12872-022-02992-0] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Accepted: 12/05/2022] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Recent study has shown that the transient receptor potential vanilloid 2 (TRPV2) channel was exclusively upregulated in patients with atrial fibrillation (AF), and that this overexpression might be detrimental for occurrence and maintenance of AF. We aimed to characterize the expression levels of TRPV2 mRNA in peripheral blood mononuclear cells (PBMCs) with/without early recurrence of atrial fibrillation (ERAF) after radiofrequency catheter ablation (RFCA), and to find a reliable predictor for ERAF. METHODS 65 patients of AF, who underwent RFCA successfully, then divided into two groups according to ERAF during following 3 months. PBMCs were isolated from whole blood by Ficoll gradient centrifugation before and after RFCA. Gene set enrichment analysis was performed to evaluate TRPV channels expression levels and Kyoto Encyclopedia of Genes and Genomes (KEGG) mapping was used for pathway enrichment analysis. RESULTS There was no significant difference in the TRPV2 mRNA expression level between the two groups before RFCA, while without ERAF group of TRPV2 expression was markedly reduced compared to ERAF group after RFCA. Moreover, the number of TRPV2 expression was confirmed as an independent predictor for the first time through receiver operating characteristic and Kaplan-Meier survival curve analysis. It should be pointed out that the above results were only used to predict ERAF, and have no predictive significance for late recurrence of atrial fibrillation according to the current data. Additionally, ERAF was inversely correlated with P wave dispersion. KEGG mapping further clustered 41 pathways, revealing that ''cyclic guanosine monophosphate-protein kinase G signaling pathway'' was significantly enriched. CONCLUSIONS We firstly assume that downregulated expression of peripheral TRPV2 appear in patients without ERAF after RFCA. TRPV2 may thus represent a novel predictor of early phase after successful radiofrequency ablation.
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Affiliation(s)
- Xuebin Ling
- grid.443397.e0000 0004 0368 7493Key Laboratory of Tropical Cardiovascular Diseases Research of Hainan Province, Cardiovascular Diseases Institute of the First Affiliated Hospital, Department of Cardiovascular Surgery, the Second Affiliated Hospital of Hainan Medical University, Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou, 571199 China
| | - Jun Wang
- grid.443397.e0000 0004 0368 7493Key Laboratory of Tropical Cardiovascular Diseases Research of Hainan Province, Cardiovascular Diseases Institute of the First Affiliated Hospital, Department of Cardiovascular Surgery, the Second Affiliated Hospital of Hainan Medical University, Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou, 571199 China
| | - Xue Qin
- grid.443397.e0000 0004 0368 7493Key Laboratory of Tropical Cardiovascular Diseases Research of Hainan Province, Cardiovascular Diseases Institute of the First Affiliated Hospital, Department of Cardiovascular Surgery, the Second Affiliated Hospital of Hainan Medical University, Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou, 571199 China
| | - Chufen Lin
- grid.216417.70000 0001 0379 7164Department of Health Medicine, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, 570208 Hainan China
| | - Wei Jie
- grid.443397.e0000 0004 0368 7493Key Laboratory of Tropical Cardiovascular Diseases Research of Hainan Province, Cardiovascular Diseases Institute of the First Affiliated Hospital, Department of Cardiovascular Surgery, the Second Affiliated Hospital of Hainan Medical University, Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou, 571199 China
| | - Yane Chen
- grid.443397.e0000 0004 0368 7493Key Laboratory of Tropical Cardiovascular Diseases Research of Hainan Province, Cardiovascular Diseases Institute of the First Affiliated Hospital, Department of Cardiovascular Surgery, the Second Affiliated Hospital of Hainan Medical University, Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou, 571199 China
| | - Dajia Fu
- grid.443397.e0000 0004 0368 7493Key Laboratory of Tropical Cardiovascular Diseases Research of Hainan Province, Cardiovascular Diseases Institute of the First Affiliated Hospital, Department of Cardiovascular Surgery, the Second Affiliated Hospital of Hainan Medical University, Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou, 571199 China
| | - Yang Yang
- grid.443397.e0000 0004 0368 7493Key Laboratory of Tropical Cardiovascular Diseases Research of Hainan Province, Cardiovascular Diseases Institute of the First Affiliated Hospital, Department of Cardiovascular Surgery, the Second Affiliated Hospital of Hainan Medical University, Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou, 571199 China
| | - Qingwen Meng
- grid.443397.e0000 0004 0368 7493Key Laboratory of Tropical Cardiovascular Diseases Research of Hainan Province, Cardiovascular Diseases Institute of the First Affiliated Hospital, Department of Cardiovascular Surgery, the Second Affiliated Hospital of Hainan Medical University, Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou, 571199 China
| | - Jing Lin
- grid.443397.e0000 0004 0368 7493Key Laboratory of Tropical Cardiovascular Diseases Research of Hainan Province, Cardiovascular Diseases Institute of the First Affiliated Hospital, Department of Cardiovascular Surgery, the Second Affiliated Hospital of Hainan Medical University, Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou, 571199 China
| | - Hui Liu
- grid.443397.e0000 0004 0368 7493Department of Anatomy, School of Basic Medicine and Life Science, Hainan Medical University, Haikou, 571199 Hainan China
| | - Tianfa Li
- grid.443397.e0000 0004 0368 7493Key Laboratory of Tropical Cardiovascular Diseases Research of Hainan Province, Cardiovascular Diseases Institute of the First Affiliated Hospital, Department of Cardiovascular Surgery, the Second Affiliated Hospital of Hainan Medical University, Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou, 571199 China
| | - Junli Guo
- grid.443397.e0000 0004 0368 7493Key Laboratory of Tropical Cardiovascular Diseases Research of Hainan Province, Cardiovascular Diseases Institute of the First Affiliated Hospital, Department of Cardiovascular Surgery, the Second Affiliated Hospital of Hainan Medical University, Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou, 571199 China
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Ling X, Jie W, Qin X, Zhang S, Shi K, Li T, Guo J. Gut microbiome sheds light on the development and treatment of abdominal aortic aneurysm. Front Cardiovasc Med 2022; 9:1063683. [PMID: 36505348 PMCID: PMC9732037 DOI: 10.3389/fcvm.2022.1063683] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 11/03/2022] [Indexed: 11/27/2022] Open
Abstract
Abdominal aortic aneurysm (AAA) is an inflammatory vascular disease with high disability and mortality. Its susceptible risk factors include old age, being male, smoking, hypertension, and aortic atherosclerosis. With the improvement of screening techniques, AAA incidence and number of deaths caused by aneurysm rupture increase annually, attracting much clinical attention. Due to the lack of non-invasive treatment, early detection and development of novel treatment of AAA is an urgent clinical concern. The pathophysiology and progression of AAA are characterized by inflammatory destruction. The gut microbiota is an "invisible organ" that directly or indirectly affects the vascular wall inflammatory cell infiltration manifested with enhanced arterial wall gut microbiota and metabolites, which plays an important role in the formation and progression of AAA. As such, the gut microbiome may become an important risk factor for AAA. This review summarizes the direct and indirect effects of the gut microbiome on the pathogenesis of AAA and highlights the gut microbiome-mediated inflammatory responses and discoveries of relevant therapeutic targets that may help manage the development and rupture of AAA.
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Affiliation(s)
- Xuebin Ling
- Key Laboratory of Tropical Cardiovascular Diseases Research of Hainan Province, Department of Cardiovascular Medicine of the First Affiliated Hospital, Hainan Medical University, Haikou, China
| | - Wei Jie
- Key Laboratory of Tropical Cardiovascular Diseases Research of Hainan Province, Department of Cardiovascular Medicine of the First Affiliated Hospital, Hainan Medical University, Haikou, China,Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou, China
| | - Xue Qin
- Key Laboratory of Tropical Cardiovascular Diseases Research of Hainan Province, Department of Cardiovascular Medicine of the First Affiliated Hospital, Hainan Medical University, Haikou, China
| | - Shuya Zhang
- Key Laboratory of Tropical Cardiovascular Diseases Research of Hainan Province, Department of Cardiovascular Medicine of the First Affiliated Hospital, Hainan Medical University, Haikou, China,Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States
| | - Kaijia Shi
- Key Laboratory of Tropical Cardiovascular Diseases Research of Hainan Province, Department of Cardiovascular Medicine of the First Affiliated Hospital, Hainan Medical University, Haikou, China
| | - Tianfa Li
- Key Laboratory of Tropical Cardiovascular Diseases Research of Hainan Province, Department of Cardiovascular Medicine of the First Affiliated Hospital, Hainan Medical University, Haikou, China
| | - Junli Guo
- Key Laboratory of Tropical Cardiovascular Diseases Research of Hainan Province, Department of Cardiovascular Medicine of the First Affiliated Hospital, Hainan Medical University, Haikou, China,Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou, China,*Correspondence: Junli Guo
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Meng Q, Xu Y, Ling X, Liu H, Ding S, Wu H, Yan D, Fang X, Li T, Liu Q. Role of ferroptosis-related genes in coronary atherosclerosis and identification of key genes: integration of bioinformatics analysis and experimental validation. BMC Cardiovasc Disord 2022; 22:339. [PMID: 35906548 PMCID: PMC9338511 DOI: 10.1186/s12872-022-02747-x] [Citation(s) in RCA: 1] [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: 02/06/2022] [Accepted: 06/16/2022] [Indexed: 12/12/2022] Open
Abstract
Background Coronary atherosclerosis (CA) is the most common type of atherosclerosis. However, the inherent pathogenesis and mechanisms of CA are unclear, and the relationship with ferroptosis-related genes (FRGs) has not been reported. The purpose of this study was to use bioinformatics techniques to evaluate potential therapeutic targets for CA.Please provide the given name for author “Dingshun”.Please provide the given name for author “Dingshun”.
Methods First, the GSE132651 dataset was acquired from the Gene Expression Omnibus database. Gene Ontology enrichment analysis, Kyoto Encyclopedia of Genes and Genomes enrichment analysis, and Protein–Protein interaction network were successively conducted. Next, overlapping genes between hub genes and CA genes were found. FRGs were found when comparing the CA group with the normal group. The correlation between overlapping genes and FRGs was further analyzed. At last, we performed Elisa to validate the expression of these genes in human blood specimens. Mice aortic tissues were used for western blot to detect the expression of proteins. Results Based on the GSE132651 dataset, 102 differentially expressed genes were identified. Five overlapping genes between hub genes and CA genes were found (CCNA2, RRM2, PBK, PCNA, CDK1). TFRC and GPX4 were found to be FRGs. TFRC was positively correlated with CCNA2, PBK, PCNA, CDK1, RRM2, with CDK1 being the strongest correlation. GPX4 was negatively correlated with these genes, among which CCNA2 was the strongest correlation. The ELISA results showed that CCNA2, CDK1, and TFRC expression were markedly increased in serum of the CA samples compared with controls, while GPX4 expression was markedly decreased in the CA samples. The western blot results show that GPX4 expression was lower in the model group, TFRC, CDK1, and CCNA2 protein expression were high in the model group. Conclusions Ferroptosis-related genes GPX4 and TFRC were closely correlated with the identified overlapping genes CCNA2 and CDK1, which may serve as targeted therapies for the treatment of CA. Supplementary Information The online version contains supplementary material available at 10.1186/s12872-022-02747-x.
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Affiliation(s)
- Qingwen Meng
- Deparment of Cardiology, The First Affiliated Hospital of Hainan Medical University, Haikou, 570100, China.,Hainan Provincial Key Laboratory of Tropical Brain Research and Transformation, Hainan Medical University, Haikou, 570100, China
| | - Yiqian Xu
- Department of Pharmacology, Hainan Medical University, Haikou, 570100, China
| | - Xuebin Ling
- Deparment of Cardiology, The First Affiliated Hospital of Hainan Medical University, Haikou, 570100, China
| | - Huajiang Liu
- Deparment of Cardiology, The First Affiliated Hospital of Hainan Medical University, Haikou, 570100, China
| | - Shun Ding
- Department of Pharmacology, Hainan Medical University, Haikou, 570100, China
| | - Haolin Wu
- Department of Pharmacology, Hainan Medical University, Haikou, 570100, China
| | - Dongming Yan
- Department of Pharmacology, Hainan Medical University, Haikou, 570100, China
| | - Xingyue Fang
- Deparment of Cardiology, The First Affiliated Hospital of Hainan Medical University, Haikou, 570100, China
| | - Tianfa Li
- Deparment of Cardiology, The First Affiliated Hospital of Hainan Medical University, Haikou, 570100, China.
| | - Qibing Liu
- Department of Pharmacology, Hainan Medical University, Haikou, 570100, China. .,Department of Pharmacy, The First Affiliated Hospital of Hainan Medical University, Haikou, 570100, China.
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Zhu B, Yang J, Zhou Z, Ling X, Cheng N, Wang Z, Liu L, Huang X, Song Y, Wang B, Qin X, Zalloua P, Xu XP, Yang L, Zhao Z. Total bone mineral density is inversely associated with stroke: a family osteoporosis cohort study in rural China. QJM 2022; 115:228-234. [PMID: 33453113 DOI: 10.1093/qjmed/hcaa339] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/01/2020] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND The relationship of osteoporosis and stroke is still not fully clarified. Apart from the well-known risk factors for stroke, bone mineral density (BMD) has gained more interest in recent years. AIM To further elucidate the relationship between BMD and stroke risk, a prospective cohort study in the Chinese rural population was conducted. DESIGN Retrospective analysis of a family osteoporosis cohort. METHODS Our subjects were selected from an osteoporosis cohort conducted in Anqing, China. All participants underwent a questionnaire assessment, clinical examinations and laboratory assessments. During the follow-up period, the number of people who had a stroke was recorded. Generalized estimating equation regression analysis was performed to determine the significance of the association between BMD and stroke. RESULTS A total of 17868 people were included. A two-way interaction test of sex and BMD on stroke was significant (P = 0.002). There was a significant difference in BMD and stroke morbidity in the male group (P = 0.003). When BMD was assessed as quartiles and the lowest quartile was used as reference, a significantly lower risk for stroke was observed in Q2-4. Notably, no significant difference was observed in female participants with adjusted odds ratio (P > 0.05). The P-value for interaction was calculated. The body mass index (P = 0.014) and waist-to-hip ratio (P = 0.027) were found to be significantly associated with BMD and stroke risk in female participants. CONCLUSIONS In Chinese rural areas, total BMD may negatively correlated with stroke, especially in men.
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Affiliation(s)
- B Zhu
- From the Department of Pharmacy, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - J Yang
- State Key Laboratory of Natural Medicines, Research Center of Biostatistics and Computational Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Z Zhou
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - X Ling
- From the Department of Pharmacy, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - N Cheng
- State Key Laboratory of Natural Medicines, Research Center of Biostatistics and Computational Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Z Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - L Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - X Huang
- Department of Cardiovascular Medicine, Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Y Song
- State Key Laboratory of Natural Medicines, Research Center of Biostatistics and Computational Pharmacy, China Pharmaceutical University, Nanjing 210009, China
- Institute of Biomedicine, Anhui Medical University, Hefei 230022, China
| | - B Wang
- Institute of Biomedicine, Anhui Medical University, Hefei 230022, China
- Shenzhen Evergreen Medical Institute, Shenzhen 518057, China
| | - X Qin
- National Clinical Research Study Center for Kidney Disease; the State Key Laboratory for Organ Failure Research; Renal Division, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - P Zalloua
- School of Medicine, Lebanese American University, PO Box 36, Byblos, Lebanon
| | - X P Xu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
- National Clinical Research Study Center for Kidney Disease; the State Key Laboratory for Organ Failure Research; Renal Division, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - L Yang
- From the Department of Pharmacy, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - Z Zhao
- From the Department of Pharmacy, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
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Zhong R, Ling X, Cao S, Xu J, Zhang B, Zhang X, Wang H, Han B, Zhong H. Safety and efficacy of dendritic cell-based immunotherapy (DCVAC/LuCa) combined with carboplatin/pemetrexed for patients with advanced non-squamous non-small-cell lung cancer without oncogenic drivers. ESMO Open 2021; 7:100334. [PMID: 34959168 PMCID: PMC8718955 DOI: 10.1016/j.esmoop.2021.100334] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 07/30/2021] [Revised: 09/28/2021] [Accepted: 11/15/2021] [Indexed: 12/25/2022] Open
Abstract
Background Our prospective, open-label, single-arm phase II study investigated the safety and efficacy of DCVAC/LuCa (dendritic cell vaccines for lung cancer) combined with standard carboplatin/pemetrexed in advanced non-squamous (nsq) non-small-cell lung cancer (NSCLC). Patients and methods Eligible patients had stage IV nsq NSCLC without oncogenic drivers and had not received prior systemic cancer therapy. Treatment consisted of carboplatin/pemetrexed for up to 6 cycles followed by 21 cycles of pemetrexed maintenance or until progression or intolerance. Non-progression patients after two cycles of chemotherapy started to receive DCVAC/LuCa subcutaneously (s.c.) on day 15 of cycle 3, and thereafter q3w (day 15 of chemotherapy cycles) for up to 15 doses. Dosing of DCVAC/LuCa s.c. varied among patients depending on the baseline number of leucocytes but remained constant for each single patient. Safety was assessed by adverse events (AEs), treatment-related adverse events (TRAEs), serious adverse events (SAEs), and adverse events of special interest (AESIs). Efficacy was measured by overall survival (OS), progression-free survival (PFS), time to progression (TTP), and objective response rate (ORR). Results Sixty-one patients were enrolled. In the safety population (n = 60), eight patients (13.33%) had grade 3 or greater TRAEs, and six patients (10.0%) showed SAEs which were not related to leukapheresis or DC vaccination. Six grade 1 AEs were considered to be related to leukapheresis. No AESIs or DCVAC/LuCa-induced AEs were observed. The 2-year survival rate in the modified intention-to-treat population (n = 44) was 52.57%. Median OS was not reached. Median PFS was 8.0 months, median TTP was 10.2 months, and the ORR was 31.82%. Conclusion In treatment-naïve stage IV nsq NSCLC patients without oncogenic drivers, the combination of carboplatin/pemetrexed and DCVAC/LuCa was well tolerated and showed promising efficacy. Therefore, a study to prove our immunotherapeutic concept in a randomized phase III trial is planned. We investigated the safety and efficacy of DCVAC/LuCa combined with standard carboplatin/pemetrexed in nsq NSCLC. The combination therapy showed a favorable tolerability profile in a selected Chinese population. The 2-year survival rate in the modified intention-to-treat population (n = 44) was 52.57%.
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Affiliation(s)
- R Zhong
- Department of Pulmonary Medicine, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China
| | - X Ling
- Department of Pulmonary Medicine, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China
| | - S Cao
- Department of Pulmonary Medicine, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China
| | - J Xu
- Department of Pulmonary Medicine, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China
| | - B Zhang
- Department of Pulmonary Medicine, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China
| | - X Zhang
- Department of Pulmonary Medicine, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China
| | - H Wang
- Department of Pulmonary Medicine, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China
| | - B Han
- Department of Pulmonary Medicine, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China.
| | - H Zhong
- Department of Pulmonary Medicine, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China.
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Ma J, Zhang J, Yang Y, Zheng D, Wang X, Liang H, Zhang L, Xin Y, Ling X, Fang C, Jiang H, Meng H, Zheng W. 65P Camrelizumab combined with paclitaxel and nedaplatin as neoadjuvant therapy for locally advanced esophageal squamous cell carcinoma (ESPRIT): A phase II, single-arm, exploratory research. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.10.083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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11
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Ling X, Xu J, Zhong R, Zhong H, Han B. 101MO Efficacy and safety of DCVAC/LuCa with chemotherapy for patients with stage IV NSCLC: A prospective, open-label, single-arm, phase II study. J Thorac Oncol 2021. [DOI: 10.1016/s1556-0864(21)01943-2] [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: 11/26/2022]
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12
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Zhou J, Xue Z, Li Q, Ling X, Wu Y. P76.96 START: Real-world Prospective Study on Sequential Therapy with First-Line Afatinib in Chinese Patients with EGFRm+ Advanced NSCLC. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1153] [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: 11/25/2022]
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13
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Shi B, Ling X, Cui H, Song W, Gao Y, Sun W. Response of nutrient resorption of Leymus chinensis to nitrogen and phosphorus addition in a meadow steppe of northeast China. Plant Biol (Stuttg) 2020; 22:1123-1132. [PMID: 32594622 DOI: 10.1111/plb.13153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 02/09/2020] [Accepted: 06/09/2020] [Indexed: 06/11/2023]
Abstract
Nutrient resorption, one of the most important strategies for plant nutrient conservation, is significantly affected by soil fertility. However, the effects of experimentally altered soil fertility on plant N and P resorption are poorly understood. The potential nutrient resorption response mechanisms of the dominant species Leymus chinensis to six N addition levels (0, 2.5, 5, 10, 20 and 40 g·N·m-2 ·year-1 ), two P addition levels (0 and 10 g P·m-2 ·year-1 ) and their interactions were studied after 3 years of treatments in a temperate meadow steppe. In both green leaves and culms, N and P addition significantly increased N and P concentrations, respectively. Nitrogen addition led to a decrease in the N resorption efficiency (NRE) of both leaves and culms. Within each N treatment, P addition decreased the P resorption efficiency (PRE) of both leaves and culms and the NRE of leaves, except in the N2.5 treatment. Both NRE and PRE in leaves were higher than those in culms under N and P addition conditions. The nutrient concentrations and resorption efficiency were significantly correlated with the soil nutrient availability. Our results suggest that plants rely more on nutrient absorption from the soil, reducing the proportion of elements obtained through nutrient resorption in nutrient-rich environments.
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Affiliation(s)
- B Shi
- Key Laboratory of Vegetation Ecology, Ministry of Education, Institute of Grassland Science, Northeast Normal University, Changchun, China
| | - X Ling
- Key Laboratory of Vegetation Ecology, Ministry of Education, Institute of Grassland Science, Northeast Normal University, Changchun, China
| | - H Cui
- Key Laboratory of Vegetation Ecology, Ministry of Education, Institute of Grassland Science, Northeast Normal University, Changchun, China
| | - W Song
- Key Laboratory of Vegetation Ecology, Ministry of Education, Institute of Grassland Science, Northeast Normal University, Changchun, China
| | - Y Gao
- Key Laboratory of Vegetation Ecology, Ministry of Education, Institute of Grassland Science, Northeast Normal University, Changchun, China
| | - W Sun
- Key Laboratory of Vegetation Ecology, Ministry of Education, Institute of Grassland Science, Northeast Normal University, Changchun, China
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14
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Lei V, Kwock J, Kirchner S, Ling X, MacLeod A. 341 Age and circadian regulation of cutaneous innate antimicrobial immunity. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.348] [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: 11/24/2022]
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15
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Kirchner S, Lei V, Coates M, Handfield C, Corcoran D, Ling X, Shannon J, Coutinho Goulart Borges Mariottoni PR, Hughes D, Waters D, Dzirasa K, MacLeod A. 814 Circadian factors BMAL1 and CLOCK control transcriptional innate antiviral immunity programs in response to skin wounding. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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16
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Cao TH, Ling X, Chen C, Tang W, Hu DM, Yin GJ. Role of miR-214-5p in the migration and invasion of pancreatic cancer cells. Eur Rev Med Pharmacol Sci 2019; 22:7214-7221. [PMID: 30468464 DOI: 10.26355/eurrev_201811_16255] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To analyze the role of miR-214-5p in proliferation and metastasis of pancreatic cancer (PC) cells, as well as its underlying mechanism. PATIENTS AND METHODS 30 pairs of PC tissues and adjacent normal tissues were collected in our Department. The expression level of miR-214-5p was detected by quantitative Real-time-polymerase chain reaction (qRT-PCR). Biological information analysis and luciferase report gene assay were used to verify potential target genes of miR-214-5p. Cell counting kit-8 (CCK-8) and transwell methods were applied to observe the interference of miR-214-5p on invasion and migration of PC cells. Western blot (WB) assay was applied to determine the expression changes of Jagged 1 (JAG1) and epithelial-mesenchymal transition (EMT)-related genes in PC cells. RESULTS QRT-PCR results showed that the expression level of miR-214-5p is significantly down-regulated in PC tissues and cells. Bioinformatics software and luciferase report gene assay identified that JAG1 is a target gene of miR-214-5p. The negative correlation between protein expressions of miR-214-5p and JAG1 was assessed by Western Blot assay. Furthermore, miR-214-5p could suppress cell proliferation, invasion and migration, and it also blocked the EMT in PC cells in vitro. Meanwhile, JAG1 overexpression reversed the inhibitory effects of miR-214-5p on proliferation, invasion and migration of PC cells. CONCLUSIONS Overexpressing miR-214-5p could significantly inhibit malignant behavior of PC cells through targeted regulation of JAG1. Thus, miR-214-5p might be a potential therapeutic target for treatment of PC.
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Affiliation(s)
- T-H Cao
- Department of Medical Oncology, Affiliated Wujiang Hospital Of Nantong University, Suzhou, China.
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Shen XP, Ling X, Lu H, Zhou CX, Zhang JK, Yu Q. Low expression of microRNA-1266 promotes colorectal cancer progression via targeting FTO. Eur Rev Med Pharmacol Sci 2019; 22:8220-8226. [PMID: 30556861 DOI: 10.26355/eurrev_201812_16516] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To explore the role of microRNA-1266 in colorectal cancer (CRC) and its underlying mechanism. PATIENTS AND METHODS The expression level of microRNA-1266 in 48 CRC tissues and paracancerous tissues was detected by quantitative Real-time-polymerase chain reaction (qRT-PCR). The relationship between microRNA-1266 expression and basic characteristics of CRC patients was analyzed. The effect of microRNA-1266 on the viability of CRC cells was detected by cell counting kit-8 (CCK-8) assay. Subsequently, a potential target gene for microRNA-1266 was predicted through bioinformatics. Finally, the binding condition between microRNA-1266 and the target gene was verified by RNA binding protein immunoprecipitation (RIP) and luciferase reporter gene assay, respectively. RESULTS MicroRNA-1266 was lowly expressed in 48 cases of CRC tissues than that of paracancerous tissues. Clinical data demonstrated that microRNA-1266 expression was correlated to tumor size and TNM of CRC patients. Knockdown of microRNA-1266 promoted proliferation of CRC cells. FTO was predicted to be the target gene for microRNA-1266, which was negatively regulated by microRNA-1266. CONCLUSIONS MicroRNA-1266 is lowly expressed in CRC tissues than that of paracancerous tissues. Lowly expressed microRNA-1266 promotes the occurrence and progression of CRC by directly targeting FTO.
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Affiliation(s)
- X-P Shen
- Department of Anorectal Surgery, The First People's Hospital of Wujiang District, Suzhou, Jiangsu, China.
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18
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Jayaratne ER, Ling X, Pushpawela B, Morawska L. Experimental determination of the dispersion of ions from a point source in the environment. Environ Technol 2019; 40:1213-1222. [PMID: 29252132 DOI: 10.1080/09593330.2017.1418912] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 12/14/2017] [Indexed: 06/07/2023]
Abstract
The dispersion of ions from a point source has been extensively modelled but there have been very few attempts to experimentally verify the theoretical findings. The main reason for this has been the difficulty of discriminating between cluster ion and charged particle concentrations in the air. In this paper, we describe a novel technique for the experimental determination of the dispersion of ions from a point source in air. Laboratory experiments showed that the lifetime of cluster ions in an aerosol cloud was of the order of minutes. However, once they attached to aerosols, the particles retained the charge for at least 30 min, suggesting that they may be carried long distances in natural winds. A negative air ionizer was used to produce ions and charged particles in an open field in the presence of a steady horizontal wind. A neutral cluster and air ion spectrometer was used to measure cluster ion and charged particle concentrations as a function of downwind distance from the source. The results are broadly consistent with the Gaussian dispersion model for a continuous point source. We estimate that cluster ions can be carried up to a distance of several hundred metres before they fully attach to particles which can then be carried as far as 3-4 km. Therefore, these observations have important bearing on exposure to cluster ions and charged particles downwind of ion sources such as high voltage power lines and busy roads.
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Affiliation(s)
- E R Jayaratne
- a International Laboratory for Air Quality and Health , Queensland University of Technology , Brisbane , Australia
| | - X Ling
- a International Laboratory for Air Quality and Health , Queensland University of Technology , Brisbane , Australia
| | - B Pushpawela
- a International Laboratory for Air Quality and Health , Queensland University of Technology , Brisbane , Australia
| | - L Morawska
- a International Laboratory for Air Quality and Health , Queensland University of Technology , Brisbane , Australia
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Zhou HY, Zhu H, Wu XY, Chen XD, Qiao ZG, Ling X, Yao XM, Tang JH. Expression and clinical significance of long-non-coding RNA GHET1 in pancreatic cancer. Eur Rev Med Pharmacol Sci 2018; 21:5081-5088. [PMID: 29228419 DOI: 10.26355/eurrev_201711_13822] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To investigate the expression level and biological function of long non-coding RNA gastric carcinoma high expressed transcript 1 (lncRNA-GHET1) in pancreatic ductal adenocarcinoma (pancreatic cancer for short), to analyze the correlation between the expression of GHET1 and clinicopathological features and to explore the role and clinical significance of GHET1 in the development and progression of pancreatic cancer. PATIENTS AND METHODS The relative expression of GHET1 in 5 human pancreatic cancer cell lines was detected by quantitative Real-time polymerase chain reaction (qRT-PCR). The specific interference sequence of GHET1 was designed and transiently transfected into pancreatic cancer cells. qRT-PCR assay was used to detect the interference efficiency. Cell counting kit-8 (CCK-8) assay was used to detect the effect of the interference with GHET1 on the proliferation of pancreatic cancer cells. Flow cytometry was used to detect the effect of the interference with GHET1 on the cycle distribution and apoptosis. qRT-PCR was used to detect the relative expression of GHET1 in pancreatic cancer tissues compared with that in cancer-adjacent tissues. The correlation between the expression of GHET1 and the pathological features of pancreatic cancer patients was analyzed. RESULTS The expression of GHET1 in human pancreatic cancer cells was relatively high. The results of CCK-8 showed that the proliferation of tumor cells was inhibited after the interference with GHET1 expression. The results of flow cytometry showed that the expression of GHET1 was blocked at G1/G0 phase, and the apoptosis rate was increased. The results of qRT-PCR showed that the expression of GHET1 was upregulated in pancreatic cancer tissues of 49 out of 64 patients compared with that in cancer-adjacent tissues, and the highly expressed GHET1 was positively correlated with the tumor, node and metastasis (TNM) staging of pancreatic cancer. CONCLUSIONS Highly expressed GHET1 promotes the proliferation of pancreatic cancer, inhibits apoptosis and is related to TNM staging. The expression of GHET1 can be used as a potential molecular marker for the prognosis and therapeutic target of pancreatic cancer.
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Affiliation(s)
- H-Y Zhou
- Department of Gastroenterology, Affiliated Wujiang Hospital of Nantong University, Suzhou, China.
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20
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Lv LL, Yan ZH, Shi X, Liu RQ, Ling X, Ji SP, Zhang J, Li P, Cai YL, Chen LL, Chen XJ, Xie LX, Lu DD, Ding L, Xu QQ, Zhang Y, Yang XW, Jing J, Ying L, Yu CP, Chen JJ, Sun XD. [Recombinant human tumor necrosis factor receptor type Ⅱ-IgG Fc fusion protein for treatment of occupational medicamentosa-like dermatitis induced by trichloroethylene]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2017; 35:257-260. [PMID: 28614922 DOI: 10.3760/cma.j.issn.1001-9391.2017.04.004] [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] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the efficacy and safety of the recombinant human tumor necrosis factor receptor Ⅱ-IgG Fc fusion protein (rhTNFR: Fc, etanercept) for the treatment of occupational medicamentosa-like dermatitis induced by trichloroethylene (OMLDT) . Methods: In September 2011 to February 2016, 12 patients with OMLDT were treated with etanercept 25 mg, subcutaneous injection, twice per week, doubling of first dose. The course of treatment was 6 weeks. The drug eruption area and severity index (DASI) score, the proportion of patients achieving a 50%, 75% and 90% reduction in DASI (DASI50, DASI75, DASI90) and the serum level of TNF-α were used to assess the efficacy at different times. Adverse reactions were also recorded and evaluated. The results were statistically analyzed by nonparametric Friedman test and repetitive measurement ANOVA using the software SPSS19.0. Results: After 4 weeks treatment, the DASI score decreased form 56.33±7.02 to 0.50±0.91 (P<0.01) . The DASI50, DASI75 and DASI90 were all increased to 12 (100%) . The serum level of TNF-α decreased form (43.74±41.62) pg/ml to (3.03±0.47) pg/ml (P<0.01) . Statistically significant difference was observed from the above indexes. There were no adverse reactions in clinical application. Conclusion: Recombinant human tumor necrosis factor receptor Ⅱ-IgG Fc fusion protein may be a safe and effective drug in the treatment of OMLDT.
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Affiliation(s)
- L L Lv
- Dermatology Department of Second Affiliated Hospital of Soochow University, Suzhou 215004, China
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Abstract
Raman spectroscopy of transition metal dichalcogenides (TMDs) is reviewed based on our recent theoretical and experimental works. First, we discuss the semi-classical and quantum mechanical description for the polarization dependence of Raman spectra of TMDs in which the optical dipole transition matrix elements as a function of laser excitation energy are important for understanding the polarization dependence of the Raman intensity and Raman tensor. Overviewing the symmetry of TMDs, we discuss the dependence of the Raman spectra of TMDs on layer thickness, polarization, laser energy and the structural phase. Furthermore, we discuss the Raman spectra of twisted bilayer and heterostructures of TMDs. Finally, we give our perspectives on the Raman spectroscopy of TMDs.
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Affiliation(s)
- R Saito
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
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22
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Zhou DC, Ling X, Zhou CF. [Progress on predictors of patients with acute paraquat poisoning]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:393-395. [PMID: 27514433 DOI: 10.3760/cma.j.issn.1001-9391.2016.05.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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23
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Cao S, Wu X, Zhao C, Zhou L, Zhang J, Ling X. Determining the need for rescue intracytoplasmic sperm injection in partial fertilisation failure during a conventional IVF cycle. Andrologia 2016; 48:1138-1144. [PMID: 26925571 DOI: 10.1111/and.12551] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/10/2015] [Indexed: 01/21/2023] Open
Abstract
To explore the need for rescue intracytoplasmic sperm injection (ICSI) in cases of partial fertilisation failure during a conventional in vitro fertilisation cycle, rescue ICSI was performed for cycles with a fertilisation rate of <50%. The data were divided into three groups based on the fertilisation rate: group 1 (0%), group 2 (<25%) and group 3 (>25%). The impact of rescue ICSI on each group was then analysed in terms of ovum fertilisation, embryo development, embryo utilisation and selection of embryos for transfer. Rescue ICSI was performed on 1831 unfertilised oocytes from 313 cycles. The fertilisation rates for group 1, group 2 and group 3 were 74.66, 68.35 and 65.46%, and the rate of polyploidy in the three groups was 8.55, 11.33, and 14.47%. The percentage of embryos that can be transferred from rescue ICSI for group 2 was 38.33%, and this value was higher than those of the other two groups. It is concluded that rescue ICSI is not recommended for patients with an IVF rate of >25% as the procedure is associated with a greater risk and low returns. However, it is feasible to perform rescue ICSI for patients with IVF rates of <25%.
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Affiliation(s)
- S Cao
- State Key Laboratory of Reproductive Medicine, Department of Reproduction, Nanjing Maternity and Child Health Care Hospital, Nanjing Medical University, Nanjing, China
| | - X Wu
- State Key Laboratory of Reproductive Medicine, Department of Reproduction, Nanjing Maternity and Child Health Care Hospital, Nanjing Medical University, Nanjing, China
| | - C Zhao
- State Key Laboratory of Reproductive Medicine, Department of Reproduction, Nanjing Maternity and Child Health Care Hospital, Nanjing Medical University, Nanjing, China
| | - L Zhou
- State Key Laboratory of Reproductive Medicine, Department of Reproduction, Nanjing Maternity and Child Health Care Hospital, Nanjing Medical University, Nanjing, China
| | - J Zhang
- State Key Laboratory of Reproductive Medicine, Department of Reproduction, Nanjing Maternity and Child Health Care Hospital, Nanjing Medical University, Nanjing, China
| | - X Ling
- State Key Laboratory of Reproductive Medicine, Department of Reproduction, Nanjing Maternity and Child Health Care Hospital, Nanjing Medical University, Nanjing, China
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Wu W, Xu C, Ling X, Fan C, Buckley BP, Chernov MV, Ellis L, Li F, Muñoz IG, Wang X. Targeting RING domains of Mdm2-MdmX E3 complex activates apoptotic arm of the p53 pathway in leukemia/lymphoma cells. Cell Death Dis 2015; 6:e2035. [PMID: 26720344 PMCID: PMC4720891 DOI: 10.1038/cddis.2015.358] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [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: 10/14/2015] [Accepted: 11/05/2015] [Indexed: 12/18/2022]
Abstract
Reactivation of tumor-suppressor p53 for targeted cancer therapy is an attractive strategy for cancers bearing wild-type (WT) p53. Targeting the Mdm2–p53 interface or MdmX ((MDM4), mouse double minute 4)–p53 interface or both has been a focus in the field. However, targeting the E3 ligase activity of Mdm2–MdmX really interesting new gene (RING)–RING interaction as a novel anticancer strategy has never been explored. In this report, we describe the identification and characterization of small molecule inhibitors targeting Mdm2–MdmX RING–RING interaction as a new class of E3 ligase inhibitors. With a fluorescence resonance energy transfer-based E3 activity assay in high-throughput screening of a chemical library, we identified inhibitors (designated as MMRis (Mdm2–MdmX RING domain inhibitors)) that specifically inhibit Mdm2–MdmX E3 ligase activity toward Mdm2 and p53 substrates. MMRi6 and its analog MMRi64 are capable of disrupting Mdm2–MdmX interactions in vitro and activating p53 in cells. In leukemia cells, MMRi64 potently induces downregulation of Mdm2 and MdmX. In contrast to Nutlin3a, MMRi64 only induces the expression of pro-apoptotic gene PUMA (p53 upregulated modulator of apoptosis) with minimal induction of growth-arresting gene p21. Consequently, MMRi64 selectively induces the apoptotic arm of the p53 pathway in leukemia/lymphoma cells. Owing to the distinct mechanisms of action of MMRi64 and Nutlin3a, their combination synergistically induces p53 and apoptosis. Taken together, this study reveals that Mdm2–MdmX has a critical role in apoptotic response of the p53 pathway and MMRi64 may serve as a new pharmacological tool for p53 studies and a platform for cancer drug development.
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Affiliation(s)
- W Wu
- Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - C Xu
- Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - X Ling
- Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - C Fan
- Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - B P Buckley
- Department of Stress Biology, Small Molecule Screening Core Facility, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - M V Chernov
- Department of Stress Biology, Small Molecule Screening Core Facility, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - L Ellis
- Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - F Li
- Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - I G Muñoz
- Crystallography Unit, Structural Biology and Biocomputing Programme, Spanish National Cancer Research Centre (CNIO), Melchor Fernández Almagro 3, Madrid, Spain
| | - X Wang
- Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Buffalo, NY, USA
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25
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Jayaratne ER, Ling X, Morawska L. Comparison of charged nanoparticle concentrations near busy roads and overhead high-voltage power lines. Sci Total Environ 2015; 526:14-8. [PMID: 25917858 DOI: 10.1016/j.scitotenv.2015.04.074] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 04/10/2015] [Accepted: 04/20/2015] [Indexed: 05/06/2023]
Abstract
Overhead high-voltage power lines are known sources of corona ions. These ions rapidly attach to aerosols to form charged particles in the environment. Although the effect of ions and charged particles on human health is largely unknown, much attention has focused on the increasing exposure as a result of the expanding power network in urban residential areas. However, it is not widely known that a large number of charged particles in urban environments originate from motor vehicle emissions. In this study, for the first time, we compare the concentrations of charged nanoparticles near busy roads and overhead power lines. We show that large concentrations of both positive and negative charged nanoparticles are present near busy roadways and that these concentrations commonly exceed those under high-voltage power lines. We estimate that the concentration of charged nanoparticles found near two freeways carrying around 120 vehicles per minute exceeded the corresponding maximum concentrations under two corona-emitting overhead power lines by as much as a factor of 5. The difference was most pronounced when a significant fraction of traffic consisted of heavy-duty diesel vehicles which typically have high particle and charge emission rates.
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Affiliation(s)
- E R Jayaratne
- International Laboratory for Air Quality and Health, Institute for Health and Biomedical Innovation, Queensland University of Technology, GPO Box 2434, Brisbane, QLD 4001, Australia
| | - X Ling
- International Laboratory for Air Quality and Health, Institute for Health and Biomedical Innovation, Queensland University of Technology, GPO Box 2434, Brisbane, QLD 4001, Australia
| | - L Morawska
- International Laboratory for Air Quality and Health, Institute for Health and Biomedical Innovation, Queensland University of Technology, GPO Box 2434, Brisbane, QLD 4001, Australia.
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Nduom EK, Wei J, Kong LY, Xu S, Gabrusiewicz K, Ling X, Huang N, Qiao W, Zhou S, Ivan C, Chen JQ, Ji Y, Radvanyi L, Fuller GN, Gilbert M, Conrad CA, Overwijk W, Calin GA, Heimberger AB. IT-22 * TARGETING THE IMMUNE CHECKPOINT NETWORK WITH miR-138 EXERTS THERAPEUTIC EFFICACY IN MURINE MODELS OF GLIOMA. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou258.20] [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: 11/13/2022] Open
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27
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Lui CH, Frenzel AJ, Pilon DV, Lee YH, Ling X, Akselrod GM, Kong J, Gedik N. Trion-induced negative photoconductivity in monolayer MoS2. Phys Rev Lett 2014; 113:166801. [PMID: 25361273 DOI: 10.1103/physrevlett.113.166801] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Indexed: 05/21/2023]
Abstract
Optical excitation typically enhances electrical conduction and low-frequency radiation absorption in semiconductors. We, however, observe a pronounced transient decrease of conductivity in doped monolayer molybdenum disulfide (MoS(2)), a two-dimensional (2D) semiconductor, using ultrafast optical-pump terahertz-probe spectroscopy. In particular, the conductivity is reduced to only 30% of its equilibrium value at high pump fluence. This anomalous phenomenon arises from the strong many-body interactions in the 2D system, where photoexcited electron-hole pairs join the doping-induced charges to form trions, bound states of two electrons and one hole. The resultant increase of the carrier effective mass substantially diminishes the conductivity.
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Affiliation(s)
- C H Lui
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - A J Frenzel
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA and Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
| | - D V Pilon
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Y-H Lee
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA and Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - X Ling
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - G M Akselrod
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - J Kong
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - N Gedik
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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Ling X, Bochu W. A review of phytotherapy of gout: perspective of new pharmacological treatments. Pharmazie 2014; 69:243-256. [PMID: 24791587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The purpose of this review article is to outline plants currently used and those with high promise for the development of anti-gout products. All relevant literature databases were searched up to 25 March 2013. The search terms were 'gout', 'gouty arthritis', 'hyperuricemia', 'uric acid', 'xanthine oxidase (XO) inhibitor', 'uricosuric', 'urate transporter 1(URAT1)' and 'glucose transporter 9 (GLUT9)'. Herbal keywords included 'herbal medicine', 'medicinal plant', 'natural products', 'phytomedicine' and 'phytotherapy'. 'antiinflammatory effect' combined with the words 'interleukin-6 (IL-6)', 'interleukin-8 (IL-8)', 'interleukin-1beta (IL-1beta)', and 'tumor necrosis factor alpha (TNF-alpha)'. XO inhibitory effect, uricosuric action, and anti-inflammatory effects were the key outcomes. Numerous agents derived from plants have anti-gout potential. In in vitro studies, flavonoids, alkaloids, essential oils, phenolic compounds, tannins, iridoid glucosides, and coumarins show the potential of anti-gout effects by their XO inhibitory action, while lignans, triterpenoids and xanthophyll are acting through their anti-inflammatory effects. In animal studies, essential oils, lignans, and tannins show dual effects including reduction of uric acid generation and uricosuric action. Alkaloids reveal inhibit uric acid generation, show anti-inflammatory effects, or a combination of the two. Phenolic compounds and flavonoids inhibit uric acid production, show uricosuric anti-inflammatory effects. In the rare human studies, colchicine from Colchicum autumnale showed anti-inflammatory effects while for other plant extracts, although revealing anti-gout potential, further phytochemical investigations are needed to identify their active constituents. Besides, the plants which give antioxidant activities are much potent in the management of gout and need to be further investigated. The current review is a detailed discussion of the potential of medicinal plants for treatment of gout.
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Barish M, Weng L, D'Apuzzo M, Forman S, Brown C, Ben Horin I, Volovitz I, Ram Z, Chang A, Wainwright D, Dey M, Han Y, Lesniak M, Chow K, Yi J, Shaffer D, Gottschalk S, Clark A, Safaee M, Oh T, Ivan M, Kaur R, Sun M, Lu YJ, Ozawa T, James CD, Bloch O, Parsa A, Debinski W, Choi YA, Gibo DM, Dey M, Wainwright D, Chang A, Han Y, Lesniak M, Herold-Mende C, Mossemann J, Jungk C, Ahmadi R, Capper D, von Deimling A, Unterberg A, Beckhove P, Jiang H, Klein SR, Piya S, Vence L, Yung WKA, Sawaya R, Heimberger A, Conrad C, Lang F, Gomez-Manzano C, Fueyo J, Jung TY, Choi YD, Kim YH, Lee JJ, Kim HS, Kim JS, Kim SK, Jung S, Cho D, Kosaka A, Ohkuri T, Okada H, Erickson K, Malone C, Ha E, Soto H, Hickey M, Owens G, Liau L, Prins R, Minev B, Kruse C, Lee J, Dang X, Borboa A, Coimbra R, Baird A, Eliceiri B, Mathios D, Lim M, Ruzevick J, Nicholas S, Polanczyk M, Jackson C, Taube J, Burger P, Martin A, Xu H, Ochs K, Sahm F, Opitz CA, Lanz TV, Oezen I, Couraud PO, von Deimling A, Wick W, Platten M, Ohkuri T, Ghosh A, Kosaka A, Zhu J, Ikeura M, Watkins S, Sarkar S, Okada H, Pellegatta S, Pessina S, Cantini G, Kapetis D, Finocchiaro G, Avril T, Vauleon E, Hamlat A, Mosser J, Quillien V, Raychaudhuri B, Rayman P, Huang P, Grabowski M, Hamburdzumyan D, Finke J, Vogelbaum M, Renner D, Litterman A, Balgeman A, Jin F, Hanson L, Gamez J, Carlson B, Sarkaria J, Parney I, Ohlfest J, Pirko I, Pavelko K, Johnson A, Sims J, Grinshpun B, Feng Y, Amendolara B, Shen Y, Canoll P, Sims P, Bruce J, Lee SX, Wong E, Swanson K, Wainwright D, Chang A, Dey M, Balyasnikova I, Cheng Y, Han Y, Lesniak M, Wang F, Wei J, Xu S, Ling X, Yaghi N, Kong LY, Doucette T, Weinberg J, DeMonte F, Lang F, Prabhu S, Heimberger A, Wiencke J, Accomando W, Houseman EA, Nelson H, Wrensch M, Wiemels J, Zheng S, Hsuang G, Bracci P, Kelsey K. IMMUNOLOGY RESEARCH. Neuro Oncol 2013. [DOI: 10.1093/neuonc/not177] [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: 11/13/2022] Open
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Postema PG, Ten Sande JN, Christiaans I, Ling X, Alders M, Boekholdt M, Varro A, Nattel S, Bezzina CR, Wilde AAM. Characterisation of familial idiopathic ventricular fibrillation linked to DPP6. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.4559] [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: 11/13/2022] Open
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Cao S, Zhao C, Zhang J, Wu X, Zhou L, Guo X, Shen R, Ling X. A minimum number of motile spermatozoa are required for successful fertilisation through artificial intrauterine insemination with husband's spermatozoa. Andrologia 2013; 46:529-34. [PMID: 23701485 DOI: 10.1111/and.12109] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/20/2013] [Indexed: 11/27/2022] Open
Affiliation(s)
- S. Cao
- State Key Laboratory of Reproductive Medicine; Department of Reproduction; Nanjing Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University; Nanjing China
| | - C. Zhao
- State Key Laboratory of Reproductive Medicine; Department of Reproduction; Nanjing Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University; Nanjing China
| | - J. Zhang
- State Key Laboratory of Reproductive Medicine; Department of Reproduction; Nanjing Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University; Nanjing China
| | - X. Wu
- State Key Laboratory of Reproductive Medicine; Department of Reproduction; Nanjing Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University; Nanjing China
| | - L. Zhou
- State Key Laboratory of Reproductive Medicine; Department of Reproduction; Nanjing Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University; Nanjing China
| | - X. Guo
- State Key Laboratory of Reproductive Medicine; Department of Reproduction; Nanjing Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University; Nanjing China
| | - R. Shen
- State Key Laboratory of Reproductive Medicine; Department of Reproduction; Nanjing Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University; Nanjing China
| | - X. Ling
- State Key Laboratory of Reproductive Medicine; Department of Reproduction; Nanjing Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University; Nanjing China
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Ling X, Xing J, Zhang JZ, Chen WF, Zan X, Du FY, Li XX, Yao H, Lou HX. The Absorption, Distribution, Metabolism and Excretion of Riccardin D in Rats. Drug Res (Stuttg) 2013; 63:159-64. [DOI: 10.1055/s-0033-1334895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- X. Ling
- School of Pharmaceutical Sciences, Shandong University, Jinan, PR China
| | - J. Xing
- School of Pharmaceutical Sciences, Shandong University, Jinan, PR China
| | - J.-Z. Zhang
- School of Pharmaceutical Sciences, Shandong University, Jinan, PR China
| | - W.-F. Chen
- School of Pharmaceutical Sciences, Shandong University, Jinan, PR China
| | - X. Zan
- School of Pharmaceutical Sciences, Shandong University, Jinan, PR China
| | - F.-Y. Du
- School of Pharmaceutical Sciences, Shandong University, Jinan, PR China
| | - X.-X. Li
- School of Pharmaceutical Sciences, Shandong University, Jinan, PR China
| | - H. Yao
- School of Pharmaceutical Sciences, Shandong University, Jinan, PR China
| | - H.-X. Lou
- School of Pharmaceutical Sciences, Shandong University, Jinan, PR China
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Fu X, Li S, Jia G, Gou L, Tian X, Sun L, Ling X, Lan N, Yin X, Ma R, Liu L, Liu Y. Protective effect of the nitric oxide pathway in L-citrulline renal ischaemia-reperfusion injury in rats. Folia Biol (Praha) 2013; 59:225-232. [PMID: 24485304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
To observe the protective effects of L-citrulline on the renal I/R injury and elucidate the mechanisms involved, 48 rats were randomized into eight groups: Group 1: sham operated; Group 2: I/R (45 min renal ischaemia and 24 h reperfusion); Group 3: I/R + L-citrulline (300 mg/kg, i.g.); Group 4: I/R + L-citrulline (600 mg/kg, i.g.); Group 5: I/R + L-citrulline (900 mg/kg, i.g.); Group 6: I/R + normal saline (NS, i.g.); Group 7: I/R + N sup ω nitro-L-arginine ester (L-NAME, 20 mg/kg, i.p.); Group 8: I/R + L-citrulline (900 mg/kg, i.g.) + L-NAME (20 mg/ kg, i.p.). At the end of the reperfusion period, serum was collected and the kidneys underwent histological and biochemical examinations. Our results showed that pre-treatment with L-citrulline (300, 600, and 900 mg/kg) significantly ameliorated the renal injury caused by I/R. Moreover, L-citrulline prevented induction of lipid peroxidation and increased the activity of superoxide dismutase and the levels of glutathione and nitric oxide. The I/R-induced decreases in total nitric oxide synthase activity, inducible nitric oxide activity, constitutive nitric oxide activity and endothelial nitric oxide protein expression in the renal cortex were significantly prevented. However, the L-citrulline-mediated protection was significantly antagonized by co-administration of L-NAME. These results suggested that L-citrulline administration exhibited significant protection against renal I/R injury. This protective effect, at least in part, via up-regulation of the endothelial nitric oxide protein expression and constitutive nitric oxide synthase activity, maintained production of nitric oxide at the basal level.
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Affiliation(s)
- X Fu
- School of Pharmacy, Xuzhou Medical College, Nanjing University, Nanjing, P. R. China
| | - S Li
- School of Pharmacy, Xuzhou Medical College, Nanjing University, Nanjing, P. R. China
| | - G Jia
- School of Pharmacy, Xuzhou Medical College, Nanjing University, Nanjing, P. R. China
| | - L Gou
- School of Pharmacy, Xuzhou Medical College, Nanjing University, Nanjing, P. R. China
| | - X Tian
- School of Pharmacy, Xuzhou Medical College, Nanjing University, Nanjing, P. R. China
| | - L Sun
- School of Pharmacy, Xuzhou Medical College, Nanjing University, Nanjing, P. R. China
| | - X Ling
- School of Pharmacy, Xuzhou Medical College, Nanjing University, Nanjing, P. R. China
| | - N Lan
- School of Pharmacy, Xuzhou Medical College, Nanjing University, Nanjing, P. R. China
| | - X Yin
- School of Pharmacy, Xuzhou Medical College, Nanjing University, Nanjing, P. R. China
| | - R Ma
- School of Environment, Nanjing University, Nanjing, P. R. China
| | - L Liu
- Xuzhou Environmental Monitoring Station, Xuzhou, P. R. China, Nanjing University, Nanjing, P. R. China
| | - Y Liu
- School of Pharmacy, Xuzhou Medical College, Nanjing University, Nanjing, P. R. China
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Lee B, Ling X, Asif S, Kraemer P, Hanisch JU, Inki P. O401 LEVONORGESTREL INTRAUTERINE SYSTEM VERSUS CONVENTIONAL MEDICAL THERAPY FOR HEAVY MENSTRUAL BLEEDING: RESULTS OF A LARGE NON-INTERVENTIONAL TRIAL IN REGION ASIA-PACIFIC. Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)60831-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Xianghua F, Lili J, Qing M, Ling X, Shiqiang L, Weili W. Protection of different dose of Simvastatin on renal function in patients with acute coronary syndrome undergoing elective percutaneous coronary intervention. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Xianghua F, Aici H, Guozhen H, Ling X, Xuechao W, Yanbo W. Protective effects of preinfarction angina on patients with acute myocardial infarction undergoing primary percutaneous coronary intervention. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Fang J, Ling X, Sang ZF. Experimental and Numerical Studies of the Flow Field in a Stirred Tank Equipped with Multiple Side-Entering Agitators. Chem Eng Technol 2011. [DOI: 10.1002/ceat.201100038] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Jayaratne ER, Ling X, Morawska L. Role of vegetation in enhancing radon concentration and ion production in the atmosphere. Environ Sci Technol 2011; 45:6350-6355. [PMID: 21751819 DOI: 10.1021/es201152g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The role of ions in the production of atmospheric particles has gained wide interest due to their profound impact on climate. Away from anthropogenic sources, molecules are ionized by alpha radiation from radon exhaled from the ground and cosmic γ radiation from space. These molecular ions quickly form into "cluster ions", typically smaller than about 1.5 nm. Using our measurements and the published literature, we present evidence to show that cluster ion concentrations in forest areas are consistently higher than outside. Owing to the low range of alpha particles, radon present deep in the ground cannot directly contribute to the measured cluster ion concentrations. We propose an additional mechanism whereby radon, which is water-soluble, is brought up by trees and plants through the uptake of groundwater and released into the atmosphere by transpiration. We estimate that, in a forest comprising eucalyptus trees spaced 4 m apart, trees may account for up to 37% of the radon that is released from the ground during the middle of the day when transpiration rates are high. The corresponding percentage on an annual basis is 4.1%. Considering that 24% of the earth's land area is still covered in forests; these findings have potentially important implications for atmospheric aerosol formation and climate.
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Affiliation(s)
- E R Jayaratne
- International Laboratory for Air Quality and Health, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, Australia
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Zhang X, Tian Y, Xu Z, Wang L, Hou C, Ling X. Healing Process of the Guinea Pig Common Bile Duct after End-to-End Anastomosis: Pathological Evaluation after 6 Months. Eur Surg Res 2011; 46:194-206. [DOI: 10.1159/000325451] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2010] [Accepted: 02/11/2011] [Indexed: 01/01/2023]
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Liu Y, Xu Y, Liu Y, Zhang Y, Wang D, Xiu D, Xu Z, Zhou X, Wu J, Ling X. Detection of cervical metastatic lymph nodes in papillary thyroid carcinoma by Fourier transform infrared spectroscopy. Br J Surg 2010; 98:380-4. [PMID: 21254012 DOI: 10.1002/bjs.7330] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/21/2010] [Indexed: 12/14/2022]
Abstract
Abstract
Background
A previous study demonstrated that Fourier transform infrared (FTIR) spectroscopy can distinguish thyroid cancer from benign thyroid lesions. The aim of this study was to explore the use of FTIR for identifying metastatic lymph nodes of papillary thyroid cancer in vitro, and distinguishing between metastatic and non-metastatic tissue.
Methods
Some 184 freshly removed cervical lymph nodes were obtained from 22 patients with papillary thyroid cancer undergoing thyroid surgery with lymph node dissection. Samples were measured by FTIR spectroscopy before being processed for histopathological diagnosis. The FTIR spectrum of each sample identified 13 bands from 1000 to 4000 cm−1. The peak position, intensity and full width at half maximum of each absorbent band were measured, and the relative intensity ratios were calculated. The FTIR spectra of metastatic lymph nodes were compared with those of non-metastatic nodes, and a linear discriminant analysis was performed based on these data.
Results
Histopathological examination confirmed 61 metastatic and 123 non-metastatic lymph nodes. The FTIR parameters of metastatic and non-metastatic lymph nodes differed owing to the content or configuration alterations of nucleic acids, proteins, lipids and carbohydrates. The sensitivity for FTIR in diagnosing metastatic lymph nodes was 80·3 per cent, the specificity was 91·9 per cent and the accuracy was 88·0 per cent.
Conclusion
FTIR spectroscopy is a novel technique for detection of metastatic lymph nodes and may prove useful in surgery for papillary thyroid cancer.
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Affiliation(s)
- Y Liu
- Department of General Surgery, Peking University Third Hospital, Beijing, China
| | - Y Xu
- College of Chemistry and Molecular Engineering, Peking University, Beijing, China
| | - Y Liu
- Institute of Chemistry, Chinese Academy of Sciences, Beijing, China
| | - Y Zhang
- College of Chemistry and Molecular Engineering, Peking University, Beijing, China
| | - D Wang
- Institute of Chemistry, Chinese Academy of Sciences, Beijing, China
| | - D Xiu
- Department of General Surgery, Peking University Third Hospital, Beijing, China
| | - Z Xu
- Department of General Surgery, Peking University Third Hospital, Beijing, China
| | - X Zhou
- Department of General Surgery, Peking University Third Hospital, Beijing, China
| | - J Wu
- College of Chemistry and Molecular Engineering, Peking University, Beijing, China
| | - X Ling
- Department of General Surgery, Peking University Third Hospital, Beijing, China
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Xianghua F, Shiqiang L, Qian W, Xinshun G, Yanbo W, Xuechao W, Weili W, Ling X. e0412 Obstructive sleep apnea syndrome is associated with increased risk of low-antiplatelet response of clopidogrel in patients with unstable angina. Heart 2010. [DOI: 10.1136/hrt.2010.208967.412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Xianghua F, Jing Z, Xuechao W, Yanbo W, Ling X, Weize F, Weili W, Yunfa J. e0656 The effect of recombinant human B-type natriuretic peptid on coronary circulation and renal haemodynamics in York pigs model of acute myocardial infarction with heart failure. Heart 2010. [DOI: 10.1136/hrt.2010.208967.656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Xianghua F, Xinshun G, Xiaoping G, Weize F, Yunfa J, Guozhen H, Weili W, Shiqiang L, Ling X, Xinwei J, Jing Z. e0638 Clinical effects and safety of delayed PCI combined with tirofiban in patients with acute myocardial infarction. Heart 2010. [DOI: 10.1136/hrt.2010.208967.638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Xianghua F, Jing Z, Xuechao W, Yanbo W, Ling X, Weize F, Weili W, Yunfa J. e0626 The effects of recombinant human B-type natriuretic peptid on coronary circulation and renal haemodynamics in York pigs model of acute myocardial infarction with heart failure. Heart 2010. [DOI: 10.1136/hrt.2010.208967.626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Xianghua F, Shiqiang L, Qian W, Xinshun G, Yanbo W, Xuechao W, Weili W, Ling X. e0631 Obstructive Sleep Apnoea Syndrome is associated with the increased Risk of Low-antiplatelet Response of Clopidogrel in patients with Unstable Angina. Heart 2010. [DOI: 10.1136/hrt.2010.208967.631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Bao-Ying L, Xiao-Li L, Hai-Qing G, Mei C, Ling X, Xian-Hua L. e0021 A novel approach of proteomics to study the mechanism of action of grape seed proanthocyanidin extracts on aortic arteriosclerosis in diabetic rats. Heart 2010. [DOI: 10.1136/hrt.2010.208967.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Danqing Y, Shuguang L, Jiyan C, Ling X, Guang L, Haojian D. e0433 Effect of atrovastatin therapy on borderline vulnerable lesions in patients with acute coronary syndrome. Heart 2010. [DOI: 10.1136/hrt.2010.208967.433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Jiangfang L, Wenhui H, Yuan L, Zhonghan N, Ling X, Ruixin F, Jiyan C. e0707 Totally percutaneous endovascular aortic repair. Heart 2010. [DOI: 10.1136/hrt.2010.208967.707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Xianghua F, Xinshun G, Qiaoying C, Weize F, Jing Z, Guozhen H, Yunfa J, Weili W, Shiqiang L, Ling X. e0635 The evaluation to the efficacy and safety of tirofiban in acute coronary syndrome patients with clopidogrel resistance during percutaneous coronary intervention. Heart 2010. [DOI: 10.1136/hrt.2010.208967.635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Liu WX, Ling X, Halbrook RS, Martineau D, Dou H, Liu X, Zhang G, Tao S. Preliminary evaluation on the use of homing pigeons as a biomonitor in urban areas. Ecotoxicology 2010; 19:295-305. [PMID: 19771513 DOI: 10.1007/s10646-009-0412-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2008] [Accepted: 09/09/2009] [Indexed: 05/20/2023]
Abstract
This study evaluates the usefulness of homing pigeons as a biomonitor of polycyclic aromatic hydrocarbons (PAHs) in urban environments. The mean concentrations of total PAHs in liver and lung tissues were greater in pigeons from Beijing compared to pigeons from Chengdu, however, this difference was only statistically significant for PAH concentrations in liver tissue (P < 0.05). Similarly, the severity of anthracosis or pneumoconiosis in lung tissue and hepatitis in liver tissue was greater in pigeons from Beijing compared to pigeons from Chengdu. Low molecular weight PAHs dominated the contribution of individual PAHs in both tissues. Significant differences (P < 0.05) were observed for most low and moderate molecular weights PAHs in liver and for some low and high molecular weights PAHs in lung between the two cites. The profile patterns of individual PAHs were similar between lung tissue of pigeons and between local ambient airs in summer for both cities, whereas the profile patterns between liver tissue and pigeon food were less similar. These data suggest that homing pigeons may be of value as a biomonitor of environmental pollution in urban areas.
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Affiliation(s)
- W X Liu
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, 100871, Beijing, China.
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