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Al Tabosh T, Liu H, Koça D, Al Tarrass M, Tu L, Giraud S, Delagrange L, Beaudoin M, Rivière S, Grobost V, Rondeau-Lutz M, Dupuis O, Ricard N, Tillet E, Machillot P, Salomon A, Picart C, Battail C, Dupuis-Girod S, Guignabert C, Desroches-Castan A, Bailly S. Impact of heterozygous ALK1 mutations on the transcriptomic response to BMP9 and BMP10 in endothelial cells from hereditary hemorrhagic telangiectasia and pulmonary arterial hypertension donors. Angiogenesis 2024; 27:211-227. [PMID: 38294582 PMCID: PMC11021321 DOI: 10.1007/s10456-023-09902-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 12/03/2023] [Indexed: 02/01/2024]
Abstract
Heterozygous activin receptor-like kinase 1 (ALK1) mutations are associated with two vascular diseases: hereditary hemorrhagic telangiectasia (HHT) and more rarely pulmonary arterial hypertension (PAH). Here, we aimed to understand the impact of ALK1 mutations on BMP9 and BMP10 transcriptomic responses in endothelial cells. Endothelial colony-forming cells (ECFCs) and microvascular endothelial cells (HMVECs) carrying loss of function ALK1 mutations were isolated from newborn HHT and adult PAH donors, respectively. RNA-sequencing was performed on each type of cells compared to controls following an 18 h stimulation with BMP9 or BMP10. In control ECFCs, BMP9 and BMP10 stimulations induced similar transcriptomic responses with around 800 differentially expressed genes (DEGs). ALK1-mutated ECFCs unexpectedly revealed highly similar transcriptomic profiles to controls, both at the baseline and upon stimulation, and normal activation of Smad1/5 that could not be explained by a compensation in cell-surface ALK1 level. Conversely, PAH HMVECs revealed strong transcriptional dysregulations compared to controls with > 1200 DEGs at the baseline. Consequently, because our study involved two variables, ALK1 genotype and BMP stimulation, we performed two-factor differential expression analysis and identified 44 BMP9-dysregulated genes in mutated HMVECs, but none in ECFCs. Yet, the impaired regulation of at least one hit, namely lunatic fringe (LFNG), was validated by RT-qPCR in three different ALK1-mutated endothelial models. In conclusion, ALK1 heterozygosity only modified the BMP9/BMP10 regulation of few genes, including LFNG involved in NOTCH signaling. Future studies will uncover whether dysregulations in such hits are enough to promote HHT/PAH pathogenesis, making them potential therapeutic targets, or if second hits are necessary.
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Affiliation(s)
- T Al Tabosh
- Biosanté unit U1292, Grenoble Alpes University, INSERM, CEA, 38000, Grenoble, France
| | - H Liu
- Biosanté unit U1292, Grenoble Alpes University, INSERM, CEA, 38000, Grenoble, France
| | - D Koça
- Biosanté unit U1292, Grenoble Alpes University, INSERM, CEA, 38000, Grenoble, France
| | - M Al Tarrass
- Biosanté unit U1292, Grenoble Alpes University, INSERM, CEA, 38000, Grenoble, France
| | - L Tu
- Faculté de Médecine, Pulmonary Hypertension: Pathophysiology and Novel Therapies, Université Paris-Saclay, 94276, Le Kremlin-Bicêtre, France
- INSERM UMR_S 999 «Pulmonary Hypertension: Pathophysiology and Novel Therapies», Hôpital Marie Lannelongue, 92350, Le Plessis-Robinson, France
| | - S Giraud
- Genetics Department, Femme-Mère-Enfants Hospital, Hospices Civils de Lyon, 69677, Bron, France
| | - L Delagrange
- Genetics Department, Femme-Mère-Enfants Hospital, Hospices Civils de Lyon, 69677, Bron, France
- National Reference Center for HHT, 69677, Bron, France
| | - M Beaudoin
- Genetics Department, Femme-Mère-Enfants Hospital, Hospices Civils de Lyon, 69677, Bron, France
- National Reference Center for HHT, 69677, Bron, France
| | - S Rivière
- Internal Medicine Department, CHU of Montpellier, St Eloi Hospital and Center of Clinical Investigation, INSERM, CIC 1411, 34295, Montpellier Cedex 7, France
| | - V Grobost
- Internal Medicine Department, CHU Estaing, 63100, Clermont-Ferrand, France
| | - M Rondeau-Lutz
- Internal Medicine Department, University Hospital of Strasbourg, 67091, Strasbourg Cedex, France
| | - O Dupuis
- Hôpital Lyon SUD, Hospices Civils de Lyon, Université Claude Bernard Lyon 1, 69100, Villeurbanne, France
- Faculty of Medicine, Lyon University, 69921, Lyon, France
| | - N Ricard
- Biosanté unit U1292, Grenoble Alpes University, INSERM, CEA, 38000, Grenoble, France
| | - E Tillet
- Biosanté unit U1292, Grenoble Alpes University, INSERM, CEA, 38000, Grenoble, France
| | - P Machillot
- Biosanté unit U1292, Grenoble Alpes University, INSERM, CEA, 38000, Grenoble, France
| | - A Salomon
- Biosanté unit U1292, Grenoble Alpes University, INSERM, CEA, 38000, Grenoble, France
| | - C Picart
- Biosanté unit U1292, Grenoble Alpes University, INSERM, CEA, 38000, Grenoble, France
| | - C Battail
- Biosanté unit U1292, Grenoble Alpes University, INSERM, CEA, 38000, Grenoble, France
| | - S Dupuis-Girod
- Biosanté unit U1292, Grenoble Alpes University, INSERM, CEA, 38000, Grenoble, France
- Genetics Department, Femme-Mère-Enfants Hospital, Hospices Civils de Lyon, 69677, Bron, France
- National Reference Center for HHT, 69677, Bron, France
| | - C Guignabert
- Faculté de Médecine, Pulmonary Hypertension: Pathophysiology and Novel Therapies, Université Paris-Saclay, 94276, Le Kremlin-Bicêtre, France
- INSERM UMR_S 999 «Pulmonary Hypertension: Pathophysiology and Novel Therapies», Hôpital Marie Lannelongue, 92350, Le Plessis-Robinson, France
| | - A Desroches-Castan
- Biosanté unit U1292, Grenoble Alpes University, INSERM, CEA, 38000, Grenoble, France
| | - S Bailly
- Biosanté unit U1292, Grenoble Alpes University, INSERM, CEA, 38000, Grenoble, France.
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Huang M, Tu L, Li J, Yue X, Wu L, Yang M, Chen Y, Han P, Li X, Zhu L. Differentiation of Crohn's disease, ulcerative colitis, and intestinal tuberculosis by dual-layer spectral detector CT enterography. Clin Radiol 2024; 79:e482-e489. [PMID: 38143229 DOI: 10.1016/j.crad.2023.12.001] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 11/29/2023] [Accepted: 12/01/2023] [Indexed: 12/26/2023]
Abstract
AIM To investigate the value of radiological features and energy spectrum quantitative parameters in the differential diagnosis of Crohn's disease (CD), ulcerative colitis (UC), and intestinal tuberculosis (ITB) by dual-layer spectral detector computed tomography (CT) enterography (CTE). MATERIALS AND METHODS Clinical and CTE data were collected from 182 patients with CD, 29 with UC, and 51 with ITB. CT images were obtained at the enteric phases and portal phases. The quantitative energy spectrum parameters were iodine density (ID), normalised ID (NID), virtual non-contrast (VNC) value, and effective atomic number (Z-eff). The area under curve (AUC) of the receiver operating characteristic curve (ROC) was calculated. RESULTS The vascular comb sign (p=0.009) and enlarged lymph nodes (p=0.001) were more common in patients with CD than UC or ITB. In the differentiation of moderate-severe active CD from UC, enteric phase NID (AUC, 0.938; p<0.001) and portal phase Z-eff (AUC, 0.925; p<0.001) had the highest accuracy, which were compared separately. In the differentiation of moderate-severe active CD from ITB, enteric phase NID (AUC, 0.906; p<0.001) and portal phase Z-eff (AUC, 0.947; p<0.001) had the highest accuracy; however, the AUC value was highest when the four parameters are combined (AUC, 0.989; p<0.001; AUC, 0.986; p<0.001; AUC, 0.936; p<0.001; and AUC, 0.986; p<0.001). CONCLUSION The present study shows that the combined strategies of four parameters have higher sensitivity and specificity in differentiating CD, UC, and ITB, and may play a key role in guiding treatment.
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Affiliation(s)
- M Huang
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - L Tu
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - J Li
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - X Yue
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - L Wu
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - M Yang
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Y Chen
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - P Han
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - X Li
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China.
| | - L Zhu
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Chen Y, Tu L, Jiang L, Ji HX. [Analysis of serum CA125 and related influencing factors in silicosis patients with pulmonary heart disease]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:209-212. [PMID: 37006147 DOI: 10.3760/cma.j.cn121094-20211115-00563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
Abstract
Objective: To analyze the serum carbohydrate antigen 125 (CA125) level and its influencing factors in male silicosis patients with pulmonary heart disease. Methods: In October 2021, data of 38 male patients with simple silicosis (silicosis group), 28 cases of silicosis with pulmonary heart disease (pulmonary heart disease group), and 27 healthy controls (control group) in the same age group were collected in inpatient and outpatient of Nanjing Occupational Disease Prevention and Control Hospital from January 2017 to December 2020. The serum CA125 levels of the three groups were compared, and the correlation between disease-related indexes and serum CA125 in silicosis patients with pulmonary heart disease was analyzed, as well as the influencing factors of pulmonary heart disease and serum CA125 levels in silicosis patients. Results: The serum CA125 level[ (19.95±7.52) IU/ml] in pulmonary heart disease group was higher than that in silicosis group[ (12.98±6.35) IU/ml] and control group[ (9.17±5.32) IU/ml] (P<0.05). There was no significant difference in serum CA125 level between the silicosis group and the control group (P>0.05). Serum CA125 levels were positively correlated with blood uric acid and fasting blood glucose in silicosis patients with pulmonary heart disease (r=0.39, 0.46, P<0.05). Serum CA125 level was a risk factor for silicosis patients with pulmonary heart disease (OR=1.13, 95%CI: 1.02-1.24, P<0.05). Dust exposure time, lactate dehydrogenase and smoking history were positively correlated with serum CA125 level in silicosis patients (P<0.05) . Conclusion: The serum CA125 level of male silicosis patients with pulmonary heart disease is significantly increased, and the level of CA125 is correlated with the level of fasting blood glucose and blood uric acid.
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Affiliation(s)
- Y Chen
- Department of Occupational Diseases, Nanjing Occupational Disease Prevention and Control Hospital, Nanjing 210042, China
| | - L Tu
- Department of Pharmacy, Nanjing Occupational Disease Prevention and Control Hospital, Nanjing 210042, China
| | - L Jiang
- Laboratory of Nanjing Occupational Disease Prevention and Control Hospital, Nanjing 210042, China
| | - H X Ji
- Department of Occupational Diseases, Nanjing Occupational Disease Prevention and Control Hospital, Nanjing 210042, China
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Robert F, Berrebeh N, Guignabert C, Humbert M, Bailly S, Tu L, Savale L. [Dysfunction of endothelial BMP-9 signaling in pulmonary vascular disease]. Rev Mal Respir 2023; 40:234-238. [PMID: 36828679 DOI: 10.1016/j.rmr.2023.01.017] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 01/06/2023] [Indexed: 02/24/2023]
Abstract
The signaling pathway of the bone morphogenetic protein (BMP)-9 binding to the endothelial receptor BMP receptor type II (BMPR-II), activin receptor-like kinase-1 (ALK1) and the coreceptor endoglin is essential to maintain the pulmonary vascular integrity. Dysregulation of this pathway is implicated in numerous vascular diseases, such as pulmonary arterial hypertension (PAH), hereditary hemorrhagic telangiectasia (HHT) and hepatopulmonary syndrome (HPS). This article aims to provide a comprehensive review of the implication of the BMP-9/BMPR-II/ALK1/endoglin pathway in the pathophysiology of these diseases.
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Affiliation(s)
- F Robert
- Faculté de médecine, Université Paris-Saclay, Inserm UMR_S 999 - Bâtiment de recherche (2(e) étage), 63, rue Gabriel-Péri, 94276 Le Kremlin-Bicêtre, France; Inserm Unité mixte de recherche 999, Hôpital Marie-Lannelongue, 92350 Le Plessis-Robinson, France
| | - N Berrebeh
- Faculté de médecine, Université Paris-Saclay, Inserm UMR_S 999 - Bâtiment de recherche (2(e) étage), 63, rue Gabriel-Péri, 94276 Le Kremlin-Bicêtre, France; Inserm Unité mixte de recherche 999, Hôpital Marie-Lannelongue, 92350 Le Plessis-Robinson, France
| | - C Guignabert
- Faculté de médecine, Université Paris-Saclay, Inserm UMR_S 999 - Bâtiment de recherche (2(e) étage), 63, rue Gabriel-Péri, 94276 Le Kremlin-Bicêtre, France; Inserm Unité mixte de recherche 999, Hôpital Marie-Lannelongue, 92350 Le Plessis-Robinson, France
| | - M Humbert
- Faculté de médecine, Université Paris-Saclay, Inserm UMR_S 999 - Bâtiment de recherche (2(e) étage), 63, rue Gabriel-Péri, 94276 Le Kremlin-Bicêtre, France; Inserm Unité mixte de recherche 999, Hôpital Marie-Lannelongue, 92350 Le Plessis-Robinson, France; Service de pneumologie et soins intensifs respiratoires, Centre de référence de l'hypertension pulmonaire, Hôpital Bicêtre, Assistance publique-Hôpitaux de Paris (AP-HP), 94276 Le Kremlin-Bicêtre, France
| | - S Bailly
- Laboratoire BioSanté, Université Grenoble Alpes, INSERM, CEA, Grenoble, France
| | - L Tu
- Faculté de médecine, Université Paris-Saclay, Inserm UMR_S 999 - Bâtiment de recherche (2(e) étage), 63, rue Gabriel-Péri, 94276 Le Kremlin-Bicêtre, France; Inserm Unité mixte de recherche 999, Hôpital Marie-Lannelongue, 92350 Le Plessis-Robinson, France
| | - L Savale
- Faculté de médecine, Université Paris-Saclay, Inserm UMR_S 999 - Bâtiment de recherche (2(e) étage), 63, rue Gabriel-Péri, 94276 Le Kremlin-Bicêtre, France; Inserm Unité mixte de recherche 999, Hôpital Marie-Lannelongue, 92350 Le Plessis-Robinson, France; Service de pneumologie et soins intensifs respiratoires, Centre de référence de l'hypertension pulmonaire, Hôpital Bicêtre, Assistance publique-Hôpitaux de Paris (AP-HP), 94276 Le Kremlin-Bicêtre, France.
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Berrebeh N, Thuillet R, Ottaviani M, Chelgham M, Anegon I, Schermuly R, Kojonazarov B, Humbert M, Bailly S, Guignabert C, Tu L. BMP-9 loss alters lung vascular integrity and partially attenuates experimental pulmonary hypertension. Rev Mal Respir 2023. [DOI: 10.1016/j.rmr.2022.11.033] [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: 02/18/2023]
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Chen P, Yu M, Deng Z, Zhang M, Liu J, Fan J, Hu C, Tu L. Rotary table wobble error analysis and correction of a rotating accelerometer gravity gradiometer. Rev Sci Instrum 2022; 93:024501. [PMID: 35232129 DOI: 10.1063/5.0077151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 01/07/2022] [Indexed: 06/14/2023]
Abstract
In a rotating accelerometer gravity gradiometer (RAGG), rotary table wobble refers to the shift in the direction of the spin axis during operation. This motion causes errors in the output of the RAGG, but the mechanism is not clear. The purpose of this paper is to analyze the relationship between rotary table wobble and RAGG errors and to propose a method for rejecting these errors. We consider the influence of attitude changes, angular velocity, and angular acceleration caused by the wobble on the specific force, and we describe the error transmission process based on the accelerometer configuration and its measurement principle. Furthermore, we show through a simulated experiment that when the angular velocity noise caused by the wobble is 1 μrad/s, this will produce errors of tens of E. We propose a post-error correction method that is based on the higher-precision RAGG model and motion measurement. The errors in the two channels of the RAGG are reduced to 3.69 E and 1.85 E after error correction. The error analysis of the effects of wobble on a RAGG and the proposed error correction method are of great significance for the development of high-precision gradiometers.
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Affiliation(s)
- P Chen
- MOE Key Laboratory of Fundamental Physical Quantities Measurement & Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - M Yu
- MOE Key Laboratory of Fundamental Physical Quantities Measurement & Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Z Deng
- MOE Key Laboratory of Fundamental Physical Quantities Measurement & Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - M Zhang
- MOE Key Laboratory of Fundamental Physical Quantities Measurement & Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - J Liu
- MOE Key Laboratory of Fundamental Physical Quantities Measurement & Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - J Fan
- MOE Key Laboratory of Fundamental Physical Quantities Measurement & Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - C Hu
- MOE Key Laboratory of Fundamental Physical Quantities Measurement & Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - L Tu
- MOE Key Laboratory of Fundamental Physical Quantities Measurement & Hubei Key Laboratory of Gravitation and Quantum Physics, PGMF and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
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Certain MC, Robert F, Baron A, Sitbon O, Humbert M, Guignabert C, Tu L, Savale L. Syndrome hépatopulmonaire : prévalence, physiopathologie et implications cliniques. Rev Mal Respir 2022; 39:84-89. [DOI: 10.1016/j.rmr.2022.02.055] [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] [Received: 01/05/2022] [Accepted: 01/05/2022] [Indexed: 11/28/2022]
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Tu L, Bajaj SS, Stanford FC. Promoting stigma. Br Dent J 2021; 231:663-664. [PMID: 34893706 PMCID: PMC9910580 DOI: 10.1038/s41415-021-3735-z] [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: 01/24/2023]
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Cardouat G, Douard M, Roubenne L, Bouchet C, Kmecová Z, Robillard P, Guignabert C, Tu L, Delcambre F, Marthan R, Muller B, Guibert C, Freund-Michel V. NGF induces pulmonary arterial hyperreactivity through Connexin 43 increased expression. Rev Mal Respir 2021. [DOI: 10.1016/j.rmr.2021.02.029] [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: 11/30/2022]
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Jutant E, Tu L, Le Vely B, Thuillet R, Humbert M, Guignabert C, Huertas A. Regulation of Type I cytokine receptors as a target for pulmonary arterial hypertension treatment? Rev Mal Respir 2021. [DOI: 10.1016/j.rmr.2021.02.026] [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: 10/21/2022]
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Sanges S, Rice L, Tu L, Cracowski J, Montani D, Mantero J, Ternynck C, Marot G, Hachulla E, Launay D, Humbert M, Guignabert C, Lafyatis R. Identification de biomarqueurs de sévérité hémodynamique de l’hypertension artérielle pulmonaire associée à la sclérodermie systémique par analyse du protéome sérique. Rev Med Interne 2020. [DOI: 10.1016/j.revmed.2020.10.059] [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: 10/22/2022]
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Cai Z, Klein T, Geenen L, Tu L, Tian S, Van Den Bosch A, De Rijke Y, Reiss I, Boersma E, Duncker D, Boomars K, Guignabert C, Merkus D. Lower plasma melatonin levels predict worse long-term survival in pulmonary arterial hypertension. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3815] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Exogenous melatonin has been reported to be beneficial in the treatment of pulmonary hypertension (PH) in animal models. Multiple mechanisms may be involved, with melatonin exerting anti-oxidant and anti-inflammatory effects, as well as inducing vasodilation and cardio-protection. However, endogenous levels of melatonin in treatment-naïve pulmonary arterial hypertension (PAH) patients and their clinical significance are still unknown.
Methods and results
Plasma levels of endogenous melatonin were measured by liquid chromatography-tandem mass spectrometry in treatment-naïve PAH patients (n=43) and healthy controls (n=111). Melatonin levels were higher in PAH patients when compared with controls (Median 118.9 [IQR 109.3–147.7] versus 108.0 [102.3–115.2] pM, P<0.001) (Figure 1A). The overall mortality was 26% (11/43) during a median long-term follow-up of 42 [IQR: 32–58] months. When PAH patients were stratified into 4 groups according to the quartiles of melatonin levels, the mortality from below 1st quartile to above 4th quartile was 55% (6/11), 10% (1/10), 0% (0/12), and 40% (4/10), respectively (Figure 1B). Kaplan-Meier analysis further showed that patients with melatonin levels below the 1st quartile (<109.3 pM) had a worse long-term survival than patients with melatonin levels above the 1st quartile (Mean survival times were 46 [95% CI: 30–65] versus 68 [58–77] months, Log-rank, p=0.026) (Figure 1C).
Conclusion
Endogenous melatonin levels were increased in treatment-naïve PAH patients, and lower levels of melatonin were associated with worse long-term survival in patient with PAH, however, whether exogenous melatonin supplements may be effective as a therapeutic strategy in human PAH remains to be established.
Figure 1
Funding Acknowledgement
Type of funding source: Foundation. Main funding source(s): This work was supported by the China Scholarship Council (201606230252) as well as the Netherlands CardioVascular Research Initiative: an initiative with support of the Dutch Heart Foundation (CVON2014-11, RECONNECT), and German Center for Cardiovascular Research (DZHK81Z0600207). Instrumentation support was received from AB Sciex, ltd. for LC-MS/MS analyses performed in this study.
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Affiliation(s)
- Z Cai
- Erasmus Medical Center, Cardiology, Rotterdam, Netherlands (The)
| | - T Klein
- Erasmus Medical Center, Clinical Chemistry, Rotterdam, Netherlands (The)
| | - L.W Geenen
- Erasmus Medical Center, Cardiology, Rotterdam, Netherlands (The)
| | - L Tu
- INSERM UMR_S 999 Hôpital Marie Lannelongue and Université Paris-Saclay School of Medicine, Paris, France
| | - S Tian
- Erasmus Medical Center, Cardiology, Rotterdam, Netherlands (The)
| | | | - Y.B De Rijke
- Erasmus Medical Center, Clinical Chemistry, Rotterdam, Netherlands (The)
| | - I.K.M Reiss
- Erasmus Medical Center, Pediatrics/Neonatology, Rotterdam, Netherlands (The)
| | - E Boersma
- Erasmus University Medical Centre, Clinical Epidemiology, Rotterdam, Netherlands (The)
| | - D.J Duncker
- Erasmus Medical Center, Cardiology, Rotterdam, Netherlands (The)
| | - K.A Boomars
- Erasmus Medical Center, Pulmonary Medicine, Rotterdam, Netherlands (The)
| | - C Guignabert
- INSERM UMR_S 999 Hôpital Marie Lannelongue and Université Paris-Saclay School of Medicine, Paris, France
| | - D Merkus
- Erasmus Medical Center, Cardiology, Rotterdam, Netherlands (The)
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Cai Z, Klein T, Tu L, Geenen L, Tian S, Van Der Ley C, Van Faassen M, Kema I, Van Den Bosch A, De Rijke J, Reiss I, Duncker D, Boomars K, Guignabert C, Merkus D. Different tryptophan-kynurenine metabolism profiles in human pulmonary arterial hypertension and animal models of pulmonary hypertension. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3814] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background
De novo NAD+ synthesis through the tryptophan-kynurenine (TK) metabolism was recognized as an important pathway in improving mitochondrial function and survival of injury or apoptotic cells, which are key processes involved in the pathogenesis of pulmonary arterial hypertension (PAH). Although abnormal TK metabolism has been reported in human PAH, the difference between human and animal models of pulmonary hypertension (PH) are currently unknown.
Objective
Determine and compare TK metabolism profiles in plasma from human PAH and 3 animal models of PH.
Methods
Human plasma was collected from treatment naïve patients with PAH (n=43) and healthy controls (n=111). Animal plasma was collected from 3 animal models of PH and corresponding controls, including monocrotaline (MCT) induced PH in rat (n=7, control n=6), Sugen + hypoxia (SuHx) induced PH in rat (n=5, control n=6), and pulmonary vein banding (PVB) induced PH in swine (n=7, control n=6). TK metabolites were determined using liquid chromatography-tandem mass spectrometry (LC-MS/MS).
Results
TK metabolism was altered in the plasma from of PAH compared to healthy controls (Figure 1A). Lower tryptophan (0.8 fold vs Control, p<0.0001), maintained 3-hydroxyanthranilic acid, and higher kynurenine, 3-hydroxykynurenine, anthranilic acid, and quinolinic acid (1.5, 2.6, 2.0, 2.6 fold vs Control, respectively, p all<0.0001) were seen in the plasma from human PAH. In the rat SuHx-PH model, kynurenine (0.7 fold, p<0.01) and quinolinic acid (0.5 fold, p<0.001) were lower, while 3-hydroxyanthranilic acid (4.3 fold, p<0.001) was higher in PH compared to control (Figure 1B). However, the TK metabolism was unaltered in MCT-PH model in rat (Figure 1C), and PVB-PH model in swine (Figure 1D).
Conclusions
TK metabolism was altered in the plasma from human PAH. The TK metabolism profiles were different among 3 animal models of PH, but did not mimic the profile in human PAH. Further research is required to determine the mechanism(s) behind the abnormal TK metabolism in human PAH as well as whether these mechanisms relate to disease onset or progression.
Figure 1
Funding Acknowledgement
Type of funding source: Foundation. Main funding source(s): This work was supported by the China Scholarship Council (201606230252) as well as the Netherlands CardioVascular Research Initiative: an initiative with support of the Dutch Heart Foundation (CVON2014-11, RECONNECT), and German Center for Cardiovascular Research (DZHK81Z0600207). Instrumentation support was received from AB Sciex, ltd. for LC-MS/MS analyses performed in this study.
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Affiliation(s)
- Z Cai
- Erasmus Medical Center, Cardiology, Rotterdam, Netherlands (The)
| | - T Klein
- Erasmus Medical Center, Clinical Chemistry, Rotterdam, Netherlands (The)
| | - L Tu
- INSERM UMR_S 999 Hôpital Marie Lannelongue and Université Paris-Saclay School of Medicine, Paris, France
| | - L.W Geenen
- Erasmus Medical Center, Cardiology, Rotterdam, Netherlands (The)
| | - S Tian
- Erasmus Medical Center, Cardiology, Rotterdam, Netherlands (The)
| | - C Van Der Ley
- University Medical Center Groningen, Laboratory Medicine, Groningen, Netherlands (The)
| | - M Van Faassen
- University Medical Center Groningen, Laboratory Medicine, Groningen, Netherlands (The)
| | - I Kema
- University Medical Center Groningen, Laboratory Medicine, Groningen, Netherlands (The)
| | | | - J.B De Rijke
- Erasmus Medical Center, Clinical Chemistry, Rotterdam, Netherlands (The)
| | - I.K.M Reiss
- Erasmus Medical Center, Pediatrics/Neonatology, Rotterdam, Netherlands (The)
| | - D.J Duncker
- Erasmus Medical Center, Cardiology, Rotterdam, Netherlands (The)
| | - K.A Boomars
- Erasmus Medical Center, Pulmonary Medicine, Rotterdam, Netherlands (The)
| | - C Guignabert
- INSERM UMR_S 999 Hôpital Marie Lannelongue and Université Paris-Saclay School of Medicine, Paris, France
| | - D Merkus
- Erasmus Medical Center, Cardiology, Rotterdam, Netherlands (The)
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Li XQ, Tu L, Wang M, Ma XL, Yang LX, Shen YY, Zhuang C, Zhao WY, Qiu JF, Zhao G, Cao H. [Clinicopathological features and prognosis of gastrointestinal stromal tumor with PDGFRA-D842V mutation]. Zhonghua Wei Chang Wai Ke Za Zhi 2020; 23:872-879. [PMID: 32927512 DOI: 10.3760/cma.j.cn.441530-20200706-00405] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: Platelet-derived growth factor alpha (PDGFRA) mutations are respectively rare in gastrointestinal stromal tumors (GIST). Most GIST with PDGFRA exon 18 mutations including D842V mutation are highly resistant to imatinib. The treatment of GIST harboring PDGFRA primary drug-resistant mutation is a major challenge. This article aims to investigate clinicopathologic features of GIST with PDGFRA-D842V mutation and the efficacy of comprehensive treatment, providing a reference for clinical practice. Methods: A retrospective cohort study was conducted to collect the clinicopathological and follow-up data of patients with GIST harboring PDGFRA mutation who were diagnosed and treated in the GIST Clinic of Renji Hospital from January 2005 to May 2020. According to the mutation site, the enrolled patients were divided into D842V mutation group and non-D842V mutation group. The differences of clinicopathologic characteristics between the two groups were compared. Furthermore, overall survival and prognostic factors were analyzed. Results: A total of 71 patients with PDGFRA-mutant GIST were included in this study, including 47 cases of D842V mutation (66.2%) and 24 cases of non-D842V mutation (33.8%). There were 28 male patients and 19 female patients in D842V mutation group, with a median age of 60 (36-82) years. There were 16 male patients and 8 female patients in non-D842V mutation group, with a median age of 62 (30-81) years. There were no significant differences in age, gender, primary location, surgical procedure, tumor size, mitotic count, expression of CD117 and DOG1, Ki-67 proliferation index and modified NIH grade between the two groups (all P>0.05). The positive rate of CD34 was 89.4% (42/47) and 62.5% (15/24) in the D842V mutation group and the non-D842V mutation group, respectively, with a statistically significant difference (χ(2)=5.644, P=0.018). Among all the cases, 66 cases underwent R0 resection without preoperative treatment; two cases underwent emergency operation with R1 resection because of tumor rupture; 2 cases were not operated after the pathological and mutation types were confirmed by biopsy (one case received avapritinib treatment and obtain partial remission). One case was diagnosed as wild-type GIST per needle biopsy in another institute, and underwent R0 resection after preoperative imatinib treatment for 6 months. After surgery, 5 high-risk GIST patients with D842V mutation and 5 high-risk GIST patients with non-D842V mutation were treated with imatinib for more than one year. The median follow-up time was 37 (1-153) months. As of the last follow-up among the patients who received R0 resection, 4 patients with D842V mutation had relapse, of whom 1 was in the period of imatinib administration, and the 3-year relapse-free survival rate was 94.2%; none of the patients with non-D842V mutation had relapse. There was no statistically significant difference in relapse-free surivval between two groups (P=0.233). Univariate analysis revealed that mitotic count (P=0.002), Ki-67 proliferation index (P<0.001) and modified NIH grade (P=0.025) were the factors associated with relapse-free survival of patients with D842V mutation after R0 resection (all P<0.05). However, the above factros were not testified as independant prognostic facors in multivariate Cox analysis (all P<0.05). Conclusion: Clinicopathologic features and the efficacy of radical resection in patients with PDGFRA-D842V mutation are similar to those in patients with non-D842V mutation.
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Affiliation(s)
- X Q Li
- Department of Gastrointestinal Surgery, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200127, China
| | - L Tu
- Department of Gastrointestinal Surgery, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200127, China
| | - M Wang
- Department of Gastrointestinal Surgery, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200127, China
| | - X L Ma
- Department of Gastrointestinal Surgery, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200127, China
| | - L X Yang
- Department of Gastrointestinal Surgery, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200127, China
| | - Y Y Shen
- Department of Pathology, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200127, China
| | - C Zhuang
- Department of Gastrointestinal Surgery, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200127, China
| | - W Y Zhao
- Department of Gastrointestinal Surgery, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200127, China
| | - J F Qiu
- Department of Gastrointestinal Surgery, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200127, China
| | - G Zhao
- Department of Gastrointestinal Surgery, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200127, China
| | - H Cao
- Department of Gastrointestinal Surgery, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200127, China
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Cardouat G, Douard M, Roubenne L, Kmecova S, Robillard P, Guignabert C, Tu L, Delcambre F, Dubois M, Marthan R, Muller B, Guibert C, Freund-Michel V. NGF induces pulmonary arterial hyperreactivity through Connexin 43 increased expression. Archives of Cardiovascular Diseases Supplements 2020. [DOI: 10.1016/j.acvdsp.2020.03.036] [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: 11/28/2022]
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16
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Zeng H, Deng S, Zhou Z, Qiu X, Jia X, Li Z, Wang J, Duan H, Tu L, Wang J. Diagnostic value of combined nucleic acid and antibody detection in suspected COVID-19 cases. Public Health 2020; 186:1-5. [PMID: 32731151 PMCID: PMC7351380 DOI: 10.1016/j.puhe.2020.07.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/30/2020] [Accepted: 07/06/2020] [Indexed: 12/12/2022]
Abstract
OBJECTIVES Nucleic acid testing is the gold standard method for the diagnosis of coronavirus disease 2019 (COVID-19); however, large numbers of false-negative results have been reported. In this study, nucleic acid detection and antibody detection (IgG and IgM) were combined to improve the testing accuracy of patients with suspected COVID-19. STUDY DESIGN The positive rate of nucleic acid detection and antibody detection (IgG and IgM) were compared in suspected COVID-19 patients. METHODS A total of 71 patients with suspected COVID-19 were selected to participate in this study, which included a retrospective analysis of clinical features, imaging examination, laboratory biochemical examination and nucleic acid detection and specific antibody (IgM and IgG) detection. RESULTS The majority of participants with suspected COVID-19 presented with fever (67.61%) and cough (54.93%), and the imaging results showed multiple small patches and ground-glass opacity in both lungs, with less common infiltration and consolidation opacity (23.94%). Routine blood tests were mostly normal (69.01%), although only a few patients had lymphopenia (4.23%) or leucopenia (12.68%). There was no statistical difference in the double-positive rate between nucleic acid detection (46.48%) and specific antibody (IgG and IgM) detection (42.25%) (P = 0.612), both of which were also poorly consistent with each other (kappa = 0.231). The positive rate of combined nucleic acid detection and antibody detection (63.38%) was significantly increased, compared with that of nucleic acid detection (46.48%) and that of specific antibody (IgG and IgM) detection (42.25%), and the differences were statistically significant (P = 0.043 and P = 0.012, respectively). CONCLUSIONS Nucleic acid detection and specific antibody (IgG and IgM) detection had similar positive rates, and their combination could improve the positive rate of COVID-19 detection, which is of great significance for diagnosis and epidemic control.
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Affiliation(s)
- H Zeng
- Department of Respiratory and Critical Care Medicine, Shenzhen Hospital, Southern Medical University, Shenzhen 518110, China
| | - S Deng
- Scientific Research Platform, The Second Clinical Medical College, Guangdong Medical University, Dongguan 523808, China
| | - Z Zhou
- Department of Radiology, Shenzhen People's Hospital, Shenzhen 518020, China
| | - X Qiu
- Special Clinic Department, Southern University of Science and Technology Hospital, Shenzhen 518052, China
| | - X Jia
- Department of Clinical Laboratory Medicine, Shenzhen Hospital, Southern Medical University, Shenzhen 518110, China
| | - Z Li
- Department of Respiratory and Critical Care Medicine, Shenzhen Hospital, Southern Medical University, Shenzhen 518110, China
| | - J Wang
- Department of Respiratory and Critical Care Medicine, Shenzhen Hospital, Southern Medical University, Shenzhen 518110, China
| | - H Duan
- Department of Respiratory and Critical Care Medicine, Shenzhen Hospital, Southern Medical University, Shenzhen 518110, China
| | - L Tu
- Department of Respiratory and Critical Care Medicine, Shenzhen Hospital, Southern Medical University, Shenzhen 518110, China
| | - J Wang
- Department of Respiratory and Critical Care Medicine, Shenzhen Hospital, Southern Medical University, Shenzhen 518110, China.
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Choiniere R, Violette P, Morin M, Tu L, Reed C, Philie C, Legault B, Beaudry M, Guyatt G, Richard P. Benefits and harms of surgical treatments for post-prostatectomy urinary incontinence: Systematic review and meta-analysis. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)34035-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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18
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Tu L, Xie Y, Lv Q, Yang M, Liao Z, Cao S, Wei Q, Gu J. AB0727 WORK OUTCOMES AND ASSOCIATED FACTORS IN ANKYLOSING SPONDYLITIS PATIENTS IN CHINA. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.1650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:Poorer work productivity due to pain and functional impairment is commonly seen in ankylosing spondylitis (AS) patients, which may contribute to huge social economic burden. However, data about work outcomes and associated factors in Chinese AS patients were barely reported.Objectives:To assess work outcomes and identify factors associated with poor work productivity in patients with AS in China.Methods:A cross-sectional study was conducted in China. Adult patients (aged ≥ 18 years) fulfilled the 1984 New York modified criteria of AS were enrolled from rheumatology center from Jan 2017 to Aug 2017. All participants completed questionnaires about socio-demographic characteristics, disease characteristics, quality of life and the Work productivity and activity impairment questionnaire in AS (WPAI:SpA) to accesses the impact of chronic health conditions on job performance and productivity. Factors associated with work outcomes were evaluated.Results:A total of 91 patients with AS were included: 87.8% males, 78.02% employed, mean age and disease duration of 30 and 10 years respectively. The mean (SD) activity impairment of all patients was 48.57% (22.02%). For patients with employed work, mean (SD) absenteeism, presenteeism and work productivity loss were 10.22% (19.44%), 43.86% (22.48%) and 47.92% (25.81%) respectively. In multivariable analysis, activity impairment was associated with Bath Ankylosing Spondylitis Functional Index (BASFI) (P<0.01) and Ankylosing Spondylitis Quality of Life (ASQoL) (P<0.01). Absenteeism was associated with disease duration (P=0.03). Presenteeism was associated with disease duration (P=0.04), BASFI (P<0.01) and ASQoL (P<0.01). Work productivity loss was associated with BASFI (P<0.01) and ASQoL (P<0.01).Conclusion:Longer disease duration, reduced physical function and poorer quality of life are associated with reduced work productivity in Chinese AS patients.References:[1]Boonen A, van der Heijde D, Landewe R, Spoorenberg A, Schouten H, Rutten-van Molken M, et al. Work status and productivity costs due to ankylosing spondylitis: comparison of three European countries. Annals of the rheumatic diseases. 2002;61(5):429-37.[2]Martindale J, Shukla R, Goodacre J. The impact of ankylosing spondylitis/axial spondyloarthritis on work productivity. Best Pract Res Clin Rheumatol. 2015;29(3):512-23.[3]Castillo-Ortiz JD, Ramiro S, Landewe R, van der Heijde D, Dougados M, van den Bosch F, et al. Work Outcome in Patients With Ankylosing Spondylitis: Results From a 12-Year Followup of an International Study. Arthritis Care Res (Hoboken). 2016;68(4):544-52.[4]Sag S, Nas K, Sag MS, Tekeoglu I, Kamanli A. Relationship of work disability between the disease activity, depression and quality of life in patients with ankylosing spondylitis. J Back Musculoskelet Rehabil. 2018;31(3):499-505.[5]Goh Y, Kwan YH, Leung YY, Fong W, Cheung PP. A cross-sectional study on factors associated with poor work outcomes in patients with axial spondyloarthritis in Singapore. Int J Rheum Dis. 2019;22(11):2001-8.Disclosure of Interests:None declared
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Sanges S, Rice L, Tu L, Cracowski JL, Montani D, Mantero J, Ternynck C, Marot G, Hachlla E, Launay D, Humbert M, Guignabert C, Lafyatis R. FRI0590 BIOMARKERS OF HEMODYNAMIC SEVERITY OF SYSTEMIC-SCLEROSIS ASSOCIATED PULMONARY ARTERIAL HYPERTENSION BY SERUM PROTEOME ANALYSIS. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.3367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Objectives:To investigate alterations in the serum proteome of patients with systemic sclerosis (SSc)-associated pulmonary hypertension (PAH), to identify proteins that correlated with hemodynamic severity and to determine their possible pathogenic role.Methods:Patients were included if they fulfilled the following criteria: diagnosis of limited cutaneous SSc, no extensive interstitial lung disease (ILD), and no treatment with PAH-specific therapy. Patients were classified as cases if they had a definitive diagnosis of PAH confirmed by right heart catheterization (RHC) and a serum sample collected on the same day as RHC. They were classified as controls if they had no sign suggestive of PAH on echocardiography.Results:In a first exploratory step, serum expression of 1129 proteins was assessed in 15 cases and 16 controls by a high-throughput proteomic assay (SOMAscan). We identified 53 proteins differentially expressed between the 2 groups. Among these 53 candidates, only 2 correlated significantly with pulmonary vascular resistance (PVR): chemerin (p=0.01,ρ=0.62) and SET nuclear proto-oncogen (SET) (p=0.01,ρ=0.62).To validate these results, serum levels of chemerin and SET were measured by ELISA assay in 25 additional cases and 19 additional controls. Chemerin levels were confirmed to be significantly higher in cases (p=0.01) and correlated with PVR (p=0.01,ρ=0.46).In a second step, to study the potential pathophysiological role of chemerin, we performed confocal immunofluorescence analyses on explanted lungs of healthy controls, SSc-ILD without PAH and SSc-PAH patients. Chemerin receptor, CMKLR1, was significantly increased on SSc-ILD and SSc-PAH pulmonary artery smooth muscle cells (PA-SMC).We then tested the effect of chemerin on PA-SMC proliferation by stimulating PA-SMCs from idiopathic pulmonary arterial hypertension (iPAH) patients with serum from SSc patients with and without PH, in the presence or absence of a CMKLR1 inhibitor. PA-SMCs from iPAH were confirmed to have higher mRNA expression of CMKLR1 than controls (p=0.03). Serum from SSc-PH patients induced a significantly higher PA-SMC proliferation (p=0.005) than serum from controls. This difference was no longer significant (p=0.69) when adding the CMKLR1 inhibitor α–NETA.Conclusion:Chemerin is a surrogate biomarker for PVR in SSc-PAH. Increased chemerin and its receptor, CMKLR1, contribute to the SSc-PAH pathogenesis by inducing PA-SMC proliferation.Acknowledgments:NoneDisclosure of Interests:Sebastien SANGES: None declared, Lisa Rice: None declared, Ly Tu: None declared, Jean-Luc Cracowski Grant/research support from: JL Cracowski received grants from United Therapeutic, Bioprojet and Topadur, David Montani Grant/research support from: Dr. MONTANI reports grants and personal fees from Actelion, grants and personal fees from Bayer, personal fees from GSK, personal fees from Pfizer, personal fees from MSD, personal fees from Chiesi, outside the submitted work, Julio Mantero: None declared, Camille Ternynck: None declared, Guillemette Marot: None declared, Eric Hachlla: None declared, David Launay Grant/research support from: Dr. Launay reports personal fees from Actelion, grants and personal fees from Takeda, grants and personal fees from CSL Behring, outside the submitted work., Marc Humbert Grant/research support from: Dr. Humbert reports personal fees from Actelion, grants and personal fees from Bayer, grants and personal fees from GSK, personal fees from Merck, from United Therapeutics, personal fees from Acceleron, outside the submitted work., Christophe Guignabert: None declared, Robert Lafyatis Grant/research support from: RL holds research grants from Formation, Elpidera and Kiniksa., Consultant of: R.L. has served as a consultant for Bristol Myers Squibb, Boehringer-Mannheim, Merck, Magenta and Genentech/Roche,
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Zhang P, Tu L, Liu R, Xu X, Bao Z, Xu P, Wang J, Li H, Zhou J, Wang Y. P1.01-106 Clinical Features and Tumor Immune Microenvironment Related to Acquired Resistance to EGFR-TKI in NSCLC Patients with EGFR Mutation. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.821] [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: 11/15/2022]
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Yang LX, Wang M, Xu RH, Tu L, Zhuang C, Zhao WY, Ma XL, Li M, Zhang J, Cao H. [Application of imatinib plasma concentration monitoring in the whole process management of gastrointestinal stromal tumor patients]. Zhonghua Wei Chang Wai Ke Za Zhi 2019; 22:841-847. [PMID: 31550823 DOI: 10.3760/cma.j.issn.1671-0274.2019.09.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the significance of monitoring imatinib mesylate (IM) plasma concentrations in patients with gastrointestinal stromal tumor (GIST). Methods: A retrospective descriptive study was carried out. Inclusion criteria: (1) patients with GIST confirmed by postoperative pathology or puncture pathology receiving maintenance therapy of IM; (2) administration of same dose of IM for at least 4 weeks (achieving steady - state plasma concentration). Patients who had severe organ dysfunction, received IM generics, or received IM simultaneously with other drugs significantly affecting IM pharmacokinetic were excluded. A total of 185 patients at the GIST Clinic of Renji Hospital, Shanghai Jiaotong University School of Medicine from August 2018 to May 2019 were enrolled, including 114 males (61.6%) and 71 females (38.4%) with a median age of 60 years old (range, 30-89 years), and 63 advanced cases. Patients receiving preoperative or postoperative adjuvant therapy were given IM 400 mg QD; patients with KIT exon 9 mutation or with disease progression during IM 400 mg QD treatment were given IM 600 mg QD. If the patient had adverse reactions such as myelosuppression during the medication, IM would be reduced or given BID per day. The peripheral venous blood was collected (22 to 24 hours after the last dose for patients who took IM QD and 2 hours before the first dose per day for those who took IM BID). IM plasma concentration was measured through high performance liquid chromatography coupled with tandem mass spectrometry (HPLC-MS/MS). Correlation analysis between IM plasma concentration results and clinical data was performed using linear regression analysis. Results: A total of 241 stable blood samples of IM plasma concentration from 185 patients were finally collected. The IM plasma concentrations were significantly different between the doses of 300 mg/d and 400 mg/d [(942.4±433.5) μg/L vs. (1340.0±500.1) μg/L, t=6.317, P<0.001], and between 400 mg/d and 600 mg/d [(1340.0±500.1) μg/L vs. (2188.0±875.5) μg/L, t=3.557, P=0.004]. Among the blood samples of 57 patients receiving IM 300 mg/d, the IM plasma concentration of the advanced patients was significantly lower than that of the non-advanced patients [(795.6±225.8) μg/L vs. (992.2±484.4) μg/L, t=2.088, P=0.042]. Among the 137 blood samples of patients receiving IM 400 mg/d, the IM plasma concentration was higher in patients aged >60 years than those aged ≤60 years [(1461.0±595.3) μg/L vs. (1240.0±380.9) μg/L, t=2.528, P=0.013] and the IM plasma concentration of cases with diarrhea was significantly lower than that of those without diarrhea [(745.8±249.6) μg/L vs. (1382.0±486.9) μg/L, t=6.794, P<0.001]. Gender, primary location, surgical procedure, mutated gene, mutation type, or time of administration was associated with IM plasma concentration no matter in patients taking IM doses of 400 mg/d or 300 mg/d (all P>0.05). Regression analysis showed that body mass (P=0.004 and P=0.019), body mass index (P=0.016 and P=0.042), and body surface area (P=0.007 and P=0.028) were all negatively correlated with IM plasma concentrations in patients taking IM doses of 300 mg/d and 400 mg/d. Within the 137 patients who received a fixed oral dose of 400 mg/d IM, 17 patients received oral 200 mg BID, whose IM plasma drug concentration was not significantly different compared with that of 120 patients who received 400 mg IM QD [(1488.0±408.3) μg/L vs. (1319.0±509.7) μg/L, t=1.307, P=0.193]. Conclusions: Monitoring IM plasma concentration is significant throughout the whole process of management of GIST patients receiving IM treatment. In particular, regular monitoring IM plasma concentration and developing appropriate treatment strategies can bring better therapeutic benefits for patients with low doses, diarrhea, advanced condition and older age.
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Affiliation(s)
- L X Yang
- Department of Gastrointestinal Surgery, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200127, China
| | - M Wang
- Department of Gastrointestinal Surgery, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200127, China
| | - R H Xu
- Department of Laboratory, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200127, China
| | - L Tu
- Department of Gastrointestinal Surgery, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200127, China
| | - C Zhuang
- Department of Gastrointestinal Surgery, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200127, China
| | - W Y Zhao
- Department of Gastrointestinal Surgery, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200127, China
| | - X L Ma
- Department of Gastrointestinal Surgery, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200127, China
| | - M Li
- Department of Laboratory, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200127, China
| | - J Zhang
- Department of Laboratory, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200127, China
| | - H Cao
- Department of Gastrointestinal Surgery, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200127, China
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Tu L, Tan CP, Li XT, Dong Q. [Investigation and analysis of thyroid function of medical occupational population in a tertiary-A hospital in Nanjing]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2019; 37:122-126. [PMID: 30929353 DOI: 10.3760/cma.j.issn.1001-9391.2019.02.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the effect of low-dose of ionizing radiation on thyroid function of medical occupational group with long-term exposure, furthermore, to analyze the relationship between the thyroid hormones and the risk factors, such as exposure length, department and comulative radiation dose. Ultimately, providing the scientific basis for setting the ionizing radiation protection standards. Methods: The population who engaged radiodiagnosis and radiotherapy in a tertiary-A hospital was set up as occupational exposure, and the administrative staffs in a company were considered as control. According to the inclusion and exclusion criteria, 161 medical professionals and 159 administrative staffs as the research object.We figured out the basic information and general condition of the groups by face-to-face questionnaire survey, calculated the annual comulative radiation dose through local center for disease control and prevention, By means of the thyroid hormone testing, we analyzed the thyroid hormone levels with different population, occupational exposure factors. Applying Epidata、Excel in data management. All the data was analyzed by statistical software package Stata12.0. Descriptive statistics, single factor analysis of variance and other statistical methods were used for data analysis. Test standard: α=0.05、P<0.05 statistical significant. Results: Age, sex and seniority were proportionality between exposure and control groups. The dosages of occupational population exposure to ionizing radiation were about 1/10 of national permit value, belonging to low-dose exposure. The T(3), FT(3) level of the exposure group was decreased than the control group (P<0.001). especially the FT(3) level has statitical discrepancy among groups with different exposure length (P<0.05). Conclusion: Long-term exposure to low-dose ionizing radiatiom can induce the thyroid damage of medical occupational population, which should be broader concerned.
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Affiliation(s)
- L Tu
- Nanjing Prevention and Treatment Center for Occupational Diseases, Nanjing 210042, China
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Bordenave J, Tu L, Savale L, Huertas A, Humbert M, Guignabert C. [New insights in the pathogenesis of pulmonary arterial hypertension]. Rev Mal Respir 2019; 36:433-437. [PMID: 31010759 DOI: 10.1016/j.rmr.2019.03.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 03/01/2019] [Indexed: 11/26/2022]
Abstract
Pulmonary arterial hypertension (PAH) is a severe and incurable cardiopulmonary disorder. Research from the past 10 years illustrates the complex and multifactorial aspects of PAH pathophysiology. Furthermore, latest advances in the field have led to a better understanding of the key components underlying this inadequate accumulation of pulmonary vascular cells within the pulmonary arterial walls, leading to pulmonary vascular remodelling. Among the underlying molecular and cellular mechanisms, pulmonary endothelial dysfunction, alterations of the inter-cell communications within the pulmonary arterial walls as well as defects of the inflammatory component and the loss of BMPRII activity play critical roles in the pathogenesis of the disease.
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Affiliation(s)
- J Bordenave
- Inserm UMR_S 999, hôpital Marie Lannelongue, 133, avenue de la Résistance, 92350 Le Plessis-Robinson, France; Faculté de Médecine, université Paris-Sud, université Paris-Saclay, 94270 Le Kremlin-Bicêtre, France
| | - L Tu
- Inserm UMR_S 999, hôpital Marie Lannelongue, 133, avenue de la Résistance, 92350 Le Plessis-Robinson, France; Faculté de Médecine, université Paris-Sud, université Paris-Saclay, 94270 Le Kremlin-Bicêtre, France
| | - L Savale
- Inserm UMR_S 999, hôpital Marie Lannelongue, 133, avenue de la Résistance, 92350 Le Plessis-Robinson, France; Faculté de Médecine, université Paris-Sud, université Paris-Saclay, 94270 Le Kremlin-Bicêtre, France; Service de pneumologie, centre de référence de l'hypertension pulmonaire sévère, DHU Thorax Innovation, hôpital Bicêtre, AP-HP, Le Kremlin-Bicêtre, France
| | - A Huertas
- Inserm UMR_S 999, hôpital Marie Lannelongue, 133, avenue de la Résistance, 92350 Le Plessis-Robinson, France; Faculté de Médecine, université Paris-Sud, université Paris-Saclay, 94270 Le Kremlin-Bicêtre, France; Service de pneumologie, centre de référence de l'hypertension pulmonaire sévère, DHU Thorax Innovation, hôpital Bicêtre, AP-HP, Le Kremlin-Bicêtre, France
| | - M Humbert
- Inserm UMR_S 999, hôpital Marie Lannelongue, 133, avenue de la Résistance, 92350 Le Plessis-Robinson, France; Faculté de Médecine, université Paris-Sud, université Paris-Saclay, 94270 Le Kremlin-Bicêtre, France; Service de pneumologie, centre de référence de l'hypertension pulmonaire sévère, DHU Thorax Innovation, hôpital Bicêtre, AP-HP, Le Kremlin-Bicêtre, France
| | - C Guignabert
- Inserm UMR_S 999, hôpital Marie Lannelongue, 133, avenue de la Résistance, 92350 Le Plessis-Robinson, France; Faculté de Médecine, université Paris-Sud, université Paris-Saclay, 94270 Le Kremlin-Bicêtre, France.
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Tu L, Zeng Z, Wang L, Luo F. [Effect of aspirin on breast cancer stem cells and stemness of breast cancer]. Zhonghua Yi Xue Za Zhi 2019; 98:3598-3602. [PMID: 30486577 DOI: 10.3760/cma.j.issn.0376-2491.2018.44.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Objective: To explore the effect of aspirin on the stemness of breast cancer cells and apoptosis induction of breast cancer stem cells. Methods: The 4T1 cells cultured with stem cell culture medium were screened, and immunofluorescence technique, flow cytometry and tumor-forming experiment in vivo were applied to test stem cell characteristics of the tumor spheres. After dealt with aspirin, the apoptosis rate of 4T1 stem cells was analyzed by flow cytometry. The 4T1 cells were cultured in vitro and treated with aspirin, then flow cytometry analysis was used to detect the expression of aldehydedehy drogenase1 (ALDH1), and the expression of stemness genes was tested by Western blot . Then, after culturing the cells with medium containing basic fibroblast growth factor (bFGF), epidermal growth factor (EGF), B27 and N2, the ability of sphere-forming was observed and recorded by microscopy. In vivo BALB/c mice inoculated with 4T1 stem cells were randomly divided into the control group, 10 mg/kg, 30 mg/kg and 100 mg/kg aspirin groups. After 10 days, the mice were dealt with aspirin or NS for 15 days, then the tumor growth was observed and recorded. Results: The ratio of ALDH1 positive cells was up to 78.55%, and 4T1 tumor sphere had a postive expression of ALDH1 and sex determining region Y-box 2 (SOX2). In vivo tumorigenesis abilities of tumor sphere with 1×10(2) 4T1 stem cells could be 75%, while the ratio of normal cells was zero. The ratio of Aspirin-induced apoptosis of 4T1 stem cells at early stage and and late stage increased from 0.36% to 21.61%, and from 4.21% to 21.38%, respectively. Flow cytometry and Western blot assay results indicated that aspirin could reduce the expression of ALDH1, SOX2, octamer-binding transcription factor 4 (OCT4) and NANOG in 4T1 cells. Sphere-forming experiments results showed that aspirin could inhibit sphere forming ability of breast cancer cells. In vivo, aspirin inhibited the growth of tumors with a dose-dependent manner. Conclusion: Aspirin could induce apoptosis of cancer stem cells and reduce stemness of breast cancer, and thus play a growth-inhibiting action on breast cancer.
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Affiliation(s)
- L Tu
- Department of Lung Cancer Center, State Key Laboratory, West China Hospital, Sichuan University, Chengdu 610041, China
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Tu L, Wang SL, Dong Q, Song HY, Li XT, Tan CP, Dong X. [Effect of low-dose ionizing radiation exposure on thyroid function in a medical occupational population]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 36:91-94. [PMID: 29699004 DOI: 10.3760/cma.j.issn.1001-9391.2018.02.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: We evaluated the effect of low-dose of ionizing radiation on thyroid function of medical occupational group with long-term exposure; furthermore; we analyzed the relationship between the thyroid hormones and the risk factors; such as exposure length; department. Ultimately; providing the scientific basis for setting the ionizing radiation protection standards. Methods: The population who engaged radiodiagnosis and radiotherapy in a tertiary-A hospital were set up as occupational exposure; 724 medical professionals as the research object. We figured out the basic information and general condition of the groups by face-to-face questionnaire survey; By means of the thyroid hormone testing; we analyzed the thyroid hormone levels with different population; occupational exposure factors. Then; obtained the prevalence of thyroid nodules by the thyroid ultrasound. Besides; we used the logistic regression model to analyze the risk factors related to thyroid nodule. Applying Epidata、Excel in data management. All the data was analyzed by statistical software package Stata12.0. Descriptive statistics; single factor analysis of variance and other statistical methods were used for data analysis. Test standard: α=0.05、P<0.05 statistical significant. Results: 1. Based on the work experience; we divided the study population into four groups; such as 1-9; 10-19; 20-29; and>30 years. The difference of the TSH level among the four groups was statistically significant (P<0.05) . 2. The multiple logistic regression showed that sex and seniority were the independent risk factors for the abnormal rate of thyroid nodules. Conclusion: Long-term exposure to low-dose ionizing radiatiom could induce the thyroid damage of medical occupational population; which should be broader concerned.
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Affiliation(s)
- L Tu
- Nanjing Prevention and Treatment Center for Occupational Diseases, Nanjing 210042, China
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Zeng Z, Yan R, Tu L, Wang Y, Chen P, Luo F, Liu L. Comparison of concurrent chemoradiation therapy plus induction chemotherapy with cisplatin, fluorouracil and docetaxel versus gemcitabine and cisplatin in advanced nasopharyngeal carcinoma. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy287.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Xiang XL, Wang A, Tu L, Ke MY, Yang YS, Jiang B, Lin L, Dai N, Zhang SS, Tao L, Xu H, Liang XM, Fang XC, Xia ZW, Wang X, Wu JN, Wang MF, Zhang HJ, Fang YF, Shen C, Wang J, Peng LH, Li WY, Wang ZF, Wang K, Liu N, Hou XH. The motility of esophageal sphincters during liquid and solid bolus swallows: a multicenter normative value study of high-resolution manometry in China. Neurogastroenterol Motil 2017; 29. [PMID: 27665746 DOI: 10.1111/nmo.12914] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Accepted: 07/05/2016] [Indexed: 01/31/2023]
Abstract
BACKGROUND It is gradually accepted that solid bolus swallow needs to be added to the procedure of manometry. The motility differences in the upper esophageal sphincter (UES) and lower esophageal sphincter (LES) were not well described. Sierra Scientific Instruments solid-state high-resolution manometry (HRM) system, the most popular HRM system in China, lacks the Chinese normative values for both liquid and solid bolus swallow parameters. METHODS The esophageal HRM data of 88 healthy volunteers were analyzed. The parameters of both sphincters in resting stage were summarized and those during solid and liquid swallows were compared. KEY RESULTS Normative HRM values of sphincter parameters in solid and liquid bolus swallows in China were established. The UES residual pressure of solid bolus swallows was lower than that of liquid bolus (0.3±5.5 mm Hg vs 4.8±5.9 mm Hg, P=.000). The time parameters of UES relaxation between two types of bolus swallows were similar. In solid bolus swallows, the intrabolus pressure (IBP) (13.8±5.1 mm Hg vs 10.9±5.7 mm Hg, P=.000) and LES relaxation time (11.0±2.1 seconds vs 8.7±1.3 seconds, P=.000) were higher. The 4-second integrated relaxation pressure between both bolus swallows was similar. CONCLUSIONS & INFERENCES The function of the UES and LES between solid and liquid bolus swallows is different. Chinese HRM parameters are different from the Chicago Classification (http://www.chictr.org.cn, Number ChiCTR-EOC-15007147).
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Affiliation(s)
- X-L Xiang
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - A Wang
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - L Tu
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - M-Y Ke
- Division of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y-S Yang
- Division of Gastroenterology and Hepatology, Chinese PLA General Hospital, Beijing, China
| | - B Jiang
- Division of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - L Lin
- Division of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - N Dai
- Division of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, China
| | - S-S Zhang
- Division of Gastroenterology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - L Tao
- Division of Gastroenterology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - H Xu
- Division of Gastroenterology, The First Hospital of Jilin University, Changchun, Jilin, China
| | - X-M Liang
- Division of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - X-C Fang
- Division of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Z-W Xia
- Division of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - X Wang
- State Key Laboratory of Cancer Biology and Xijing Hospital of Digestive Disease, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - J-N Wu
- Division of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - M-F Wang
- Division of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - H-J Zhang
- Division of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Y-F Fang
- Division of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, China
| | - C Shen
- Division of Gastroenterology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - J Wang
- Division of Gastroenterology, The First Hospital of Jilin University, Changchun, Jilin, China
| | - L-H Peng
- Division of Gastroenterology and Hepatology, Chinese PLA General Hospital, Beijing, China
| | - W-Y Li
- Division of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Z-F Wang
- Division of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - K Wang
- Division of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - N Liu
- State Key Laboratory of Cancer Biology and Xijing Hospital of Digestive Disease, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - X-H Hou
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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Sun L, Tu L, Wei M. 466P Gefitinib retreatment beyond progression in advanced NSCLC patients with sensitive EGFR mutations. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw594.030] [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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Zhang Y, Gauthier SA, Gupta A, Tu L, Comunale J, Chiang GCY, Chen W, Salustri CA, Zhu W, Wang Y. Magnetic Susceptibility from Quantitative Susceptibility Mapping Can Differentiate New Enhancing from Nonenhancing Multiple Sclerosis Lesions without Gadolinium Injection. AJNR Am J Neuroradiol 2016; 37:1794-1799. [PMID: 27365331 DOI: 10.3174/ajnr.a4856] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2015] [Accepted: 04/15/2016] [Indexed: 01/08/2023]
Abstract
BACKGROUND AND PURPOSE Magnetic susceptibility values of multiple sclerosis lesions increase as they change from gadolinium-enhancing to nonenhancing. Can susceptibility values measured on quantitative susceptibility mapping without gadolinium injection be used to identify the status of lesion enhancement in surveillance MR imaging used to monitor patients with MS? MATERIALS AND METHODS In patients who had prior MR imaging and quantitative susceptibility mapping in a current MR imaging, new T2-weighted lesions were evaluated for enhancement on conventional T1-weighted imaging with gadolinium, and their susceptibility values were measured on quantitative susceptibility mapping. Receiver operating characteristic analysis was used to assess the diagnostic accuracy of using quantitative susceptibility mapping in distinguishing new gadolinium-enhancing from new nonenhancing lesions. A generalized estimating equation was used to assess differences in susceptibility values among lesion types. RESULTS In 54 patients, we identified 86 of 133 new lesions that were gadolinium-enhancing and had relative susceptibility values significantly lower than those of nonenhancing lesions (β = -17.2; 95% CI, -20.2 to -14.2; P < .0001). Using susceptibility values to discriminate enhancing from nonenhancing lesions, we performed receiver operating characteristic analysis and found that the area under the curve was 0.95 (95% CI, 0.92-0.99). Sensitivity was measured at 88.4%, and specificity, at 91.5%, with a cutoff value of 11.2 parts per billion for quantitative susceptibility mapping-measured susceptibility. CONCLUSIONS During routine MR imaging monitoring to detect new MS lesion activity, quantitative susceptibility mapping can be used without gadolinium injection for accurate identification of the BBB leakage status in new T2WI lesions.
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Affiliation(s)
- Y Zhang
- From the Department of Radiology (Y.Z., W.C., W.Z.), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Department of Radiology (Y.Z., C.A.S., Y.W.), Weill Cornell Medical College, New York, New York
| | | | - A Gupta
- Radiology (A.G., J.C., G.C.-Y.C.), Weill Cornell Medical College, New York-Presbyterian Hospital, New York, New York
| | - L Tu
- School of Applied and Engineering Physics (L.T.)
| | - J Comunale
- Radiology (A.G., J.C., G.C.-Y.C.), Weill Cornell Medical College, New York-Presbyterian Hospital, New York, New York
| | - G C-Y Chiang
- Radiology (A.G., J.C., G.C.-Y.C.), Weill Cornell Medical College, New York-Presbyterian Hospital, New York, New York
| | - W Chen
- From the Department of Radiology (Y.Z., W.C., W.Z.), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - C A Salustri
- Department of Radiology (Y.Z., C.A.S., Y.W.), Weill Cornell Medical College, New York, New York.,Department of Biomedical Engineering (Y.W.), Cornell University, Ithaca, New York
| | - W Zhu
- From the Department of Radiology (Y.Z., W.C., W.Z.), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Y Wang
- Department of Radiology (Y.Z., C.A.S., Y.W.), Weill Cornell Medical College, New York, New York .,Department of Biomedical Engineering (Y.W.), Cornell University, Ithaca, New York
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Fan M, Cao S, Tu L, Wei Q, Yuan R, Gu J. SAT0406 Efficacy and Safety of Loxoprofen Hydrogel Patch versus Loxoprofen Tablet in Patients with Ankylosing Spondylitis: A Randomized Controlled Trial. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.6172] [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: 11/04/2022]
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Zheng X, Li Q, Tu L, Lv Q, Yang M, Zhang Y, Lin Z, Liao Z, Cao S, Wei Q, Qi J, Yuan R, Gu J. AB0721 The Clinical Characteristics and Associated Factors of Chinese Ankylosing Spondylitis Patients. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.4724] [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: 11/04/2022]
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Abstract
Here, we performed a case-control study to investigate the role of miR-146a, miR-149, and miR-196a2 polymorphisms in the development of gastric cancer using a hospital-based case-control design. A total of 186 gastric cancer patients and 186 control subjects were enrolled from Ren Ji Hospital between January 2012 and October 2014. MicroRNAs miR-146a, miR-149, and miR-196a2 were genotyped by polymerase chain reaction coupled with restriction fragment length polymorphism. Univariate logistic regression analysis revealed that patients with gastric cancer were more likely to be infected with Helicobacter pylori [odds ratio (OR) = 1.68, 95% confidence interval (CI) = 1.07-1.96]. Conditional multiple logistic regression analysis revealed that the TT genotype of miR-196a2 was associated with an increased risk of gastric cancer compared to the CC genotype (OR = 2.40; 95%CI = 1.26-4.61). Moreover, patients carrying both the TC and TT genotypes of miR-196a2 were correlated with an elevated risk of gastric cancer compared to those expressing the CC genotype alone (OR = 1.67, 95%CI = 1.01-2.75; P = 0.03). In conclusion, the results of our study indicated that the miR-196a2 polymorphism was associated with gastric cancer development.
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Affiliation(s)
- J Y Gu
- Department of Gastrointestinal Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - L Tu
- Department of Gastrointestinal Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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Wang Y, Tu L, Li Y, Chen D, Wang S. Notoginsenoside R1 Protects against Neonatal Cerebral Hypoxic-Ischemic Injury through Estrogen Receptor-Dependent Activation of Endoplasmic Reticulum Stress Pathways. ACTA ACUST UNITED AC 2016; 357:591-605. [DOI: 10.1124/jpet.115.230359] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 02/17/2016] [Indexed: 12/14/2022]
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Hattori Y, Kotani T, Tsuda H, Mano Y, Tu L, Li H, Hirako S, Ushida T, Imai K, Nakano T, Sato Y, Miki R, Sumigama S, Iwase A, Toyokuni S, Kikkawa F. Maternal molecular hydrogen treatment attenuates lipopolysaccharide-induced rat fetal lung injury. Free Radic Res 2015; 49:1026-37. [PMID: 25947958 DOI: 10.3109/10715762.2015.1038257] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Maternal inflammation is associated with spontaneous preterm birth and respiratory impairment among premature infants. Recently, molecular hydrogen (H2) has been reported to have a suppressive effect on oxidative stress and inflammation. The aim of this study was to evaluate the effects of H2 on fetal lung injury caused by maternal inflammation. Cell viability and the production of interleukin-6 (IL-6) and reactive oxygen species (ROS) were examined by treatment with lipopolysaccharide (LPS) contained in ordinal or H2-rich medium (HM) using a human lung epithelial cell line, A549. Pregnant Sprague Dawley rats were divided into three groups: Control, LPS, and HW + LPS groups. Rats were injected with phosphate-buffered saline (Control) or LPS intraperitoneally (LPS) on gestational day 19 and provided H2 water (HW) ad libitum for 24 h before LPS injection (HW + LPS). Fetal lung samples were collected on day 20, and the levels of apoptosis, oxidative damage, IL-6, and vascular endothelial growth factor (VEGF) were evaluated using immunohistochemistry. The number of apoptotic cells, and levels of ROS and IL-6 were significantly increased by LPS treatment, and repressed following cultured with HM in A549 cells. In the rat models, the population positive for cleaved caspase-3, 8-hydroxy-2'-deoxyguanosine, IL-6, and VEGF was significantly increased in the LPS group compared with that observed in the Control group and significantly decreased in the HW + LPS group. In this study, LPS administration induced apoptosis and oxidative damage in fetal lung cells that was ameliorated by maternal H2 intake. Antenatal H2 administration may decrease the pulmonary mobility associated with inflammation in premature infants.
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Affiliation(s)
- Y Hattori
- Departments of Gynecology and Obstetrics, Nagoya University Graduate School of Medicine , Nagoya , Japan
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Huertas A, Tu L, Thuillet R, Le Hiress M, Phan C, Humbert M, Guignabert C. Inhibition of HIF/Ob/ObR-b axis reverses experimental pulmonary hypertension. Rev Mal Respir 2015. [DOI: 10.1016/j.rmr.2015.02.062] [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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Phan C, Seferian A, Huertas A, Sattler C, Tu L, Thuillet R, Le Hiress M, Savale L, Montani D, Humbert M, Guignabert C. Dysfonction endothéliale pulmonaire et hypertension artérielle pulmonaire associée au dasatinib. Rev Mal Respir 2015. [DOI: 10.1016/j.rmr.2015.02.063] [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: 11/27/2022]
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Ghigna MR, Guignabert C, Mercier O, Fadel E, Tu L, Simonneau G, Humbert M, Dorfmüller P. A comparative histological study of pulmonary vascular lesions in lungs of patients with idiopathic or heritable PAH. Rev Mal Respir 2015. [DOI: 10.1016/j.rmr.2015.02.064] [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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Jin D, Deng B, Li JX, Cai W, Tu L, Chen J, Wu Q, Wang WH. A microfluidic device enabling high-efficiency single cell trapping. Biomicrofluidics 2015; 9:014101. [PMID: 25610513 PMCID: PMC4288539 DOI: 10.1063/1.4905428] [Citation(s) in RCA: 79] [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: 10/10/2014] [Accepted: 12/22/2014] [Indexed: 05/03/2023]
Abstract
Single cell trapping increasingly serves as a key manipulation technique in single cell analysis for many cutting-edge cell studies. Due to their inherent advantages, microfluidic devices have been widely used to enable single cell immobilization. To further improve the single cell trapping efficiency, this paper reports on a passive hydrodynamic microfluidic device based on the "least flow resistance path" principle with geometry optimized in line with corresponding cell types. Different from serpentine structure, the core trapping structure of the micro-device consists of a series of concatenated T and inverse T junction pairs which function as bypassing channels and trapping constrictions. This new device enhances the single cell trapping efficiency from three aspects: (1) there is no need to deploy very long or complicated channels to adjust flow resistance, thus saving space for each trapping unit; (2) the trapping works in a "deterministic" manner, thus saving a great deal of cell samples; and (3) the compact configuration allows shorter flowing path of cells in multiple channels, thus increasing the speed and throughput of cell trapping. The mathematical model of the design was proposed and optimization of associated key geometric parameters was conducted based on computational fluid dynamics (CFD) simulation. As a proof demonstration, two types of PDMS microfluidic devices were fabricated to trap HeLa and HEK-293T cells with relatively significant differences in cell sizes. Experimental results showed 100% cell trapping and 90% single cell trapping over 4 × 100 trap sites for these two cell types, respectively. The space saving is estimated to be 2-fold and the cell trapping speed enhancement to be 3-fold compared to previously reported devices. This device can be used for trapping various types of cells and expanded to trap cells in the order of tens of thousands on 1-cm(2) scale area, as a promising tool to pattern large-scale single cells on specific substrates and facilitate on-chip cellular assay at the single cell level.
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Affiliation(s)
- D Jin
- Department of Precision Instruments, Tsinghua University , Beijing, China
| | - B Deng
- Institute of Electronics , Chinese Academy of Sciences, Beijing, China
| | - J X Li
- School of Life Sciences, Tsinghua University , Beijing, China
| | - W Cai
- North Navigation Control Technology Co., Ltd. , Beijing, China
| | - L Tu
- Department of Precision Instruments, Tsinghua University , Beijing, China
| | - J Chen
- Institute of Electronics , Chinese Academy of Sciences, Beijing, China
| | - Q Wu
- School of Life Sciences, Tsinghua University , Beijing, China
| | - W H Wang
- Department of Precision Instruments, Tsinghua University , Beijing, China
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Seferian A, Phan C, Tu L, Huertas A, Sattler C, Le Hiress M, Simonneau G, Humbert M, Montani D, Guignabert C. Effects of broad spectrum tyrosine kinase inhibitor on pulmonary circulation homeostasis. Rev Mal Respir 2014. [DOI: 10.1016/j.rmr.2014.04.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Ricard N, Tu L, Huertas A, Phan C, Le Hiress M, Fadel E, Humbert M, Guignabert C. Contribution des péricytes dans le remodelage vasculaire associé à l’hypertension artérielle pulmonaire. Rev Mal Respir 2014. [DOI: 10.1016/j.rmr.2014.04.043] [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: 11/15/2022]
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Yu X, Tu L, Lei P, Song J, Xu H, Hou X. Antiemesis effect and brain fMRI response of gastric electrical stimulation with different parameters in dogs. Neurogastroenterol Motil 2014; 26:1049-56. [PMID: 24965904 DOI: 10.1111/nmo.12362] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Accepted: 04/17/2014] [Indexed: 01/20/2023]
Abstract
BACKGROUND The aims of this study were to investigate the effect of gastric electrical stimulation (GES) with different parameters on emesis induced by apomorphine, and possible center mechanisms by brain functional magnetic resonance imaging (fMRI). METHODS Six dogs implanted with electrodes on gastric serosa were used in this study. Part 1: Apomorphine was injected in the control session and GES sessions. GESs with different parameters were applied in GES session. Gastric slow waves and emesis and behaviors suggestive of nausea were recorded in each session. Part 2: Each dog was anesthetized and given GESs with different parameters or sham stimulation for 15 min after baseline (5 min), respectively. The location of cerebral activation induced by GES was investigated by fMRI. KEY RESULTS Apomorphine induced emesis and behaviors suggestive of nausea, and gastric dysrhythmia. The emesis frequency in control session was 5.5 ± 0.99, and symptoms score was 22.17 ± 1.01. GES with short pulse and long pulse could not improve emesis and symptoms induced by apomorphine. The emesis frequency (4.5 ± 0.76 in short pulse and 6.33 ± 1.05 in long pulse) and symptoms scores had no significant difference compared to control session (each p > 0.05). GES with trains of short pulse reduced emesis time frequency (3.83 ± 0.7, p = 0.042 vs control) and symptoms score (p = 0.037 vs control) obviously. Brain fMRI showed that GES with short pulse and long pulse activated brain stem region, and trains of short pulse made amygdala and occipital lobe activation. CONCLUSIONS & INFERENCES Apomorphine induced emesis and gastric dysrhythmia. GES with trains of short pulses relieves emetic responses through activation of amygdala region.
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Affiliation(s)
- X Yu
- Department of Gastroenterology, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Caremel R, Tu L, Baker K, Lotouchin O, Corcos J. Étude randomisée, prospective, multicentrique comparant un traitement médical à un traitement chirurgical dans l’incontinence urinaire mixte de la femme. Prog Urol 2013. [DOI: 10.1016/j.purol.2013.08.210] [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: 10/26/2022]
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Sourial M, Tu L. Le Male Sling Virtue : la mesure du point de pression de fuite rétrograde (RLPP) peropératoire améliore les issues cliniques. Prog Urol 2013. [DOI: 10.1016/j.purol.2013.08.280] [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: 10/26/2022]
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Chen Y, Wu J, Tu L, Xiong X, Hu X, Huang J, Xu Z, Zhang X, Hu C, Hu X, Guo A, Wang Y, Chen H. (1)H-NMR spectroscopy revealed Mycobacterium tuberculosis caused abnormal serum metabolic profile of cattle. PLoS One 2013; 8:e74507. [PMID: 24098654 PMCID: PMC3787013 DOI: 10.1371/journal.pone.0074507] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Accepted: 08/02/2013] [Indexed: 01/17/2023] Open
Abstract
To re-evaluate virulence of Mycobacterium tuberculosis (M. tb) in cattle, we experimentally infected calves with M. tb andMycobacterium bovisvia intratracheal injection at a dose of 2.0×107 CFU and observed the animals for 33 weeks. The intradermal tuberculin test and IFN-γin vitro release assay showed that both M. tb and M. bovis induced similar responses. Immunohistochemical staining of pulmonary lymph nodes indicated that the antigen MPB83 of both M. tb and M. bovis were similarly distributed in the tissue samples. Histological examinations showed all of the infected groups exhibited neutrophil infiltration to similar extents. Although the infected cattle did not develop granulomatous inflammation, the metabolic profiles changed significantly, which were characterized by a change in energy production pathways and increased concentrations of N-acetyl glycoproteins. Glycolysis was induced in the infected cattle by decreased glucose and increased lactate content, and enhanced fatty acid β-oxidation was induced by decreased TG content, and decreased gluconeogenesis indicated by the decreased concentration of glucogenic and ketogenic amino acids promoted utilization of substances other than glucose as energy sources. In addition, an increase in acute phase reactive serum glycoproteins, together with neutrophil infiltration and increased of IL-1β production indicated an early inflammatory response before granuloma formation. In conclusion, this study indicated that both M. tb and M.bovis were virulent to cattle. Therefore, it is likely that cattle with M. tb infections would be critical to tuberculosis transmission from cattle to humans. Nuclear magnetic resonance was demonstrated to be an efficient method to systematically evaluate M. tb and M. bovi sinfection in cattle.
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Affiliation(s)
- Yingyu Chen
- The National Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, China
- College of Animal Science, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Junfang Wu
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Centre for Magnetic Resonance, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, Hubei, China
| | - Lingling Tu
- The National Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, China
- Wuhan Keqian Animal Biological Products Co. Ltd., Wuhan, Hubei, China
| | - Xuekai Xiong
- The National Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Xidan Hu
- Xinjiang Academy of Animal Husbandry and Veterinary Institute, Urumqi, Xinjiang, China
| | - Jiong Huang
- Xinjiang Academy of Animal Husbandry and Veterinary Institute, Urumqi, Xinjiang, China
| | - Zhiguang Xu
- Xinjiang Academy of Animal Husbandry and Veterinary Institute, Urumqi, Xinjiang, China
| | - Xiansong Zhang
- The National Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Changmin Hu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Xueying Hu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Aizhen Guo
- The National Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- * E-mail: (AG); (YW)
| | - Yulan Wang
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Centre for Magnetic Resonance, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, Hubei, China
- * E-mail: (AG); (YW)
| | - Huanchun Chen
- The National Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
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Jiang H, Wang L, Wang X, Feng R, Zhang Y, Tu L, Chen W. [Comparison of skin sympathetic reaction in patients with generalized anxiety disorder and with major depression disorder]. Zhejiang Da Xue Xue Bao Yi Xue Ban 2013; 42:192-196. [PMID: 23585006 DOI: 10.3785/j.issn.1008-9292.2013.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
OBJECTIVE To compare skin sympathetic response(SSR) between patients with generalized anxiety disorder(GAD) and patients with major depression disorder(MDD). METHODS The latency and amplitude of SSR wave were measured in 30 GAD patients and 30 MDD patients, before and after 8-week treatment of anti-anxiety or anti-depression drugs. Thirty age and sex-matched healthy subjects served as healthy controls (HC). RESULTS Before the treatment, the latency of SSR in GAD patients was significantly shorter than that in HC group, while the amplitude was significantly higher than that in the HC (P<0.05). In MDD group, the latency before the treatment was significantly longer than that in the HC,while the amplitude was significantly lower than that in the HC (P <0.05). After treatment,the latency of SSR in GAD group was extended compared to the baseline level, and close to the level of the HC. The amplitude of SSR in GAD group became lower after treatment, but still higher than that of control group. The latency of SSR in MDD patients was significantly shorter after treatment compared to baseline level (P <0.05). In addition, the latency of SSR in MDD group was still longer than that in GAD group (P<0.05); meanwhile,the amplitude of SSR in MDD group was significantly lower that in GAD group (P<0.001). SSR parameters were positively correlated with HAMA and HAMD scores with a correlation coefficient of 0.57 and 0.73, respectively. CONCLUSION There are significant differences in SSR parameters between patients with GAD and patients with MDD,indicating that SSR can be used as an objective index to distinguish anxiety from depression.
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Affiliation(s)
- Hong Jiang
- Department of Psychiatry, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China
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Xiang X, Tu L, Zhang X, Xie X, Hou X. Influence of the catheter diameter on the investigation of the esophageal motility through solid-state high-resolution manometry. Dis Esophagus 2013; 26:661-7. [PMID: 23384164 DOI: 10.1111/dote.12029] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Past studies have shown that catheter diameter is one of the device-dependent problems which influence the manometric results in the conventional water perfusion esophageal manometry. High-resolution solid-state manometry which abandons water perfusion is thought as an improved manometry method benefited from more pressure sensors, and it is gradually widely used in many present esophageal motility studies. There was no research to evaluate the influence of catheter diameter on the solid-state high-resolution manometry results. The aim of this study was to investigate whether solid-state high-resolution catheters of different diameter provide different data and results. Nine asymptomatic volunteers and 18 gastroesophageal reflux disease patients accepted high-resolution manometry examinations with two solid-state catheters of different outer diameter (4.2 mm and 2.7 mm). Every examination contained 5 minutes resting pressure, 10 water swallows and 10 bread swallows. Some important parameters of the esophageal sphincters and esophageal body peristalsis were analyzed. They included the locations and resting pressure of sphincters, the distal contractile integral, the 4-second integrated relaxation pressure etc. Then, these parameters and the diagnosis of each swallow based on them provided by the two different diameter catheters were compared. (i) The 4.2 mm thick catheter provided higher upper esophageal sphincter resting pressure than the 2.7 mm thick catheter (59.4 ± 21.1 mmHg vs. 49.7 ± 21.4 mmHg); (ii) the 2.7 mm thick catheter provided higher 4-second integrated relaxation pressure than the 4.2 mm thick catheter (10.9 ± 4.5 mmHg vs. 8.5 ± 3.8 mmHg) in water swallows; (iii) the mean distal contractile integral of the water and bread swallows in the large diameter catheter were higher than in the small diameter catheter (989.2 ± 650.0 mmHg/cm/s vs. 806.3 ± 563.7 mmHg/cm/s in water swallows, 1762.5 ± 1440.6 mmHg/cm/s vs. 1275.7 ± 982.0 mmHg/cm/s in bread swallows); (iv) on the lower esophageal sphincter resting pressure, most parameters in bread swallows provided by the two catheters were of no statistical significance; (v) the 2.7 mm thick catheter detected more hypotensive peristalsis swallows than the other catheter in water swallows; and (vi) the final diagnosis of about half of the subjects provided by the two catheters were different. The 2.7 mm thick solid-state high-resolution manometry catheter provides somewhat different data from the usually used 4.2 mm thick catheter. It is needed to set up different and independent series of normative value for the solid-state high-resolution manometry catheters of different outer diameter. The normative value and diagnostic criterion got from one catheter is not universal and acceptable for researches with catheter of different diameter.
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Affiliation(s)
- X Xiang
- Division of Gastroenterology, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Tu L, Sun L, Gong Y, Liu Y, Zhou L, Zhou X, Xu Y, Wang J, Hou M, Lu Y. Paclitaxel and Cisplatin Combined with Intensity-Modulated Radiotherapy for Upper Esophageal Carcinoma. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)33326-3] [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: 11/30/2022] Open
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Zhang J, Tu L, Zhang Z, Lin Y, Chen W, Zhong J. [Effects of secondary structure of the leader peptide on modification and processing of bovicin HJ50]. Wei Sheng Wu Xue Bao 2012; 52:969-976. [PMID: 23173433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
OBJECTIVE Elucidating the correlation between the secondary structure of the leader peptide of lantibiotic bovicin HJ50 and its modification and processing. METHODS The variants with mutated leader peptide were synthesized by semi-in vitro biosynthesis, and their modification pattern were then analyzed by MALDI-TOF MS. At the same time, the effect of leader peptide mutants on processing the modified propeptide was examined by HPLC and antimicrobial activity. RESULTS We constructed 6 mutants (F-16A, V-15E, E-14L, E-8P, L-7D, L-4K) involved in forming secondary structure of the bovicin HJ50 leader peptide. F-16A, V-15E, L-4K showed very little effect on modification and processing whereas E-14L and E-8P caused changes in modification. In addition, we found that L-7D strongly affected the processing. CONCLUSION The conserved helix structure in the leader peptide of bovicin HJ50 was closely related to the activity of BovM and BovT150, and the presence of secondary structure was very important to modification and processing of bovicin HJ50.
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Affiliation(s)
- Jie Zhang
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
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Perez-Pomares JM, Ruiz-Villalba A, Ziogas A, Segovia JC, Ehrbar M, Munoz-Chapuli R, De La Rosa A, Dominguez JN, Hove-Madsen L, Sankova B, Sedmera D, Franco D, Aranega Jimenez A, Babaeva G, Chizh N, Galchenko S, Sandomirsky B, Schwarzl M, Seiler S, Steendijk P, Huber S, Maechler H, Truschnig-Wilders M, Pieske B, Post H, Simrick S, Kreutzer R, Rao C, Terracciano CM, Kirchhof P, Fabritz L, Brand T, Theveniau-Ruissy M, Parisot P, Francou A, Saint-Michel E, Mesbah K, Kelly RG, Wu HT, Sie SS, Chen CY, Kuan TC, Lin CS, Ismailoglu Z, Guven M, Yakici A, Ata Y, Ozcan S, Yildirim E, Ongen Z, Miroshnikova V, Demina E, Rodygina T, Kurjanov P, Denisenko A, Schwarzman A, Rubanenko A, Shchukin Y, Germanov A, Goldbergova M, Parenica J, Lipkova J, Pavek N, Kala P, Poloczek M, Vasku A, Parenicova I, Spinar J, Gambacciani C, Chiavacci E, Evangelista M, Vesentini N, Kusmic C, Pitto L, Chernova A, Nikulina SUY, Arvanitis DA, Mourouzis I, Pantos C, Kranias EG, Cokkinos DV, Sanoudou D, Vladimirskaya TE, Shved IA, Kryvorot SG, Schirmer IM, Appukuttan A, Pott L, Jaquet K, Ladilov Y, Archer CR, Bootman MD, Roderick HL, Fusco A, Sorriento D, Santulli G, Trimarco B, Iaccarino G, Hagenmueller M, Riffel J, Gatzoulis MA, Stoupel EG, Garcia R, Merino D, Montalvo C, Hurle MA, Nistal JF, Villar AV, Perez-Moreno A, Gilabert R, Bernhold E, Ros E, Amat-Roldan I, Katus HA, Hardt SE, Maqsood A, Zi M, Prehar S, Neyses L, Ray S, Oceandy D, Khatami N, Wadowski P, Wagh V, Hescheler J, Sachinidis A, Mohl W, Chaudhry B, Burns D, Henderson DJ, Bax NAM, Van Marion MH, Shah B, Goumans MJ, Bouten CVC, Van Der Schaft DWJ, Bax NAM, Van Oorschot AAM, Maas S, Braun J, Van Tuyn J, De Vries AAF, Gittenberger-De Groot AC, Goumans MJ, Bageghni S, Drinkhill MJ, Batten TFC, Ainscough JFX, Onate B, Vilahur G, Ferrer-Lorente R, Ybarra J, Diez-Caballero A, Ballesta-Lopez C, Moscatiello F, Herrero J, Badimon L, Martin-Rendon E, Clifford DM, Fisher SA, Brusnkill SJ, Doree C, Mathur A, Clarke M, Watt SM, Hernandez-Vera R, Badimon L, Kavanagh D, Yemm AI, Frampton J, Kalia N, Terajima Y, Shimizu T, Tsuruyama S, Ishii H, Sekine H, Hagiwara N, Okano T, Vrijsen KR, Chamuleau SAJ, Sluijter JPG, Doevendans PFM, Madonna R, Delli Pizzi S, Di Donato L, Mariotti A, Di Carlo L, D'ugo E, Teberino MA, Merla A, T A, De Caterina R, Kolker L, Ali NN, Maclellan K, Moore M, Wheeler J, Harding SE, Fleck RA, Rowlinson JM, Kraenkel N, Ascione R, Madeddu P, O'sullivan JF, Leblond AL, Kelly G, Kumar AHS, Metharom P, Buneker CK, Alizadeh-Vikali N, Hynes BG, O'connor R, Caplice NM, Noseda M, De Smith AJ, Leja T, Rao PH, Al-Beidh F, Abreu Pavia MS, Blakemore AI, Schneider MD, Stathopoulou K, Cuello F, Ehler E, Haworth RS, Avkiran M, Morawietz H, Eickholt C, Langbein H, Brux M, Goettsch C, Goettsch W, Arsov A, Brunssen C, Mazilu L, Parepa IR, Suceveanu AI, Suceveanu AP, De Man FS, Guignabert C, Tu L, Handoko ML, Schalij I, Fadel E, Postmus PE, Vonk-Noordegraaf A, Humbert M, Eddahibi S, Sorriento D, Santulli G, Del Giudice C, Anastasio A, Trimarco B, Iaccarino G, Fazal L, Azibani F, Bihry N, Merval R, Polidano E, Samuel JL, Delcayre C, Zhang Y, Mi YM, Ren LL, Cheng YP, Guo R, Liu Y, Jiang YN, Mourouzis I, Pantos C, Kokkinos AD, Cokkinos DV, Tretjakovs P, Jurka A, Bormane I, Mikelsone I, Reihmane D, Elksne K, Krievina G, Verbovenko J, Bahs G, Lopez-Andres N, Rousseau A, Calvier L, Akhtar R, Labat C, Cruickshank K, Diez J, Zannad F, Lacolley P, Rossignol P, Hamesch K, Subramanian P, Li X, Thiemann A, Heyll K, Dembowsky K, Chevalier E, Weber C, Schober A, Yang L, Kim G, Gardner B, Earley J, Hofmann-Bowman M, Cheng CF, Lian WS, Lin H, Jinjolia NJ, Abuladze GA, Tvalchrelidze SHT, Khamnagadaev I, Shkolnikova M, Kokov L, Miklashevich I, Drozdov I, Ilyich I, Bingen BO, Askar SFA, Ypey DL, Van Der Laarse A, Schalij MJ, Pijnappels DA, Roney CH, Ng FS, Chowdhury RA, Chang ETY, Patel PM, Lyon AR, Siggers JH, Peters NS, Obergrussberger A, Stoelzle S, Bruggemann A, Haarmann C, George M, Fertig N, Moreira D, Souza A, Valente P, Kornej J, Reihardt C, Kosiuk J, Arya A, Hindricks G, Adams V, Husser D, Bollmann A, Camelliti P, Dudhia J, Dias P, Cartledge J, Connolly DJ, Terracciano CM, Nobles M, Sebastian S, Tinker A, Opel A, Tinker A, Daimi H, Haj Khelil A, Be Chibani J, Barana A, Amoros I, Gonzalez De La Fuente M, Caballero R, Aranega A, Franco D, Kelly A, Bernus O, Kemi OJ, Myles RC, Ghouri IA, Burton FL, Smith GL, Del Lungo M, Sartiani L, Spinelli V, Baruscotti M, Difrancesco D, Mugelli A, Cerbai E, Thomas AM, Aziz Q, Khambra T, Tinker A, Addlestone JMA, Cartwright EJ, Wilkinson R, Song W, Marston S, Jacquet A, Mougenot NM, Lipskaia AJ, Paalberends ER, Stam K, Van Dijk SJ, Van Slegtenhorst M, Dos Remedios C, Ten Cate FJ, Michels M, Niessen HWM, Stienen GJM, Van Der Velden J, Read MI, Andreianova AA, Harrison JC, Goulton CS, Kerr DS, Sammut IA, Schwarzl M, Seiler S, Wallner M, Huber S, Steendijk P, Maechler H, Truschnig-Wilders M, Von Lewinski D, Pieske B, Post H, Kindsvater D, Saes M, Morano I, Muegge A, Jaquet K, Buyandelger B, Kostin S, Gunkel S, Vouffo J, Ng K, Chen J, Eilers M, Isaacson R, Milting H, Knoell R, Cattin ME, Crocini C, Schlossarek S, Maron S, Hansen A, Eschenhagen T, Carrier L, Bonne G, Coppini R, Ferrantini C, Olivotto I, Del Lungo M, Belardinelli L, Poggesi C, Mugelli A, Cerbai E, Leung MC, Messer AE, Copeland O, Marston SB, Mills AM, Collins T, O'gara P, Thum T, Regalla K, Lyon AR, Macleod KT, Harding SE, Rao C, Prodromakis T, Chaudhry U, Darzi A, Yacoub MH, Athanasiou T, Terracciano CM, Bogdanova A, Makhro A, Hoydal M, Stolen TO, Johnssen AB, Alves M, Catalucci D, Condorelli G, Koch LG, Britton SL, Smith GL, Wisloff U, Bito V, Claus P, Vermeulen K, Huysmans C, Ventura-Clapier R, Sipido KR, Seliuk MN, Burlaka AP, Sidorik EP, Khaitovych NV, Kozachok MM, Potaskalova VS, Driesen RB, Galan DT, Vermeulen K, Claus P, Sipido KR, De Paulis D, Arnoux T, Schaller S, Pruss RM, Poitz DM, Augstein A, Braun-Dullaeus RC, Schmeisser A, Strasser RH, Micova P, Balkova P, Hlavackova M, 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Poster session 2. Cardiovasc Res 2012. [DOI: 10.1093/cvr/cvr334] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Huertas A, Tu L, Guignabert C, Gambaryan N, Girerd B, Perros F, Montani D, Cohen-Kaminsky S, Humbert M. Leptine et dysfonction endothéliale dans l’immunopathologie de l’hypertension artérielle pulmonaire idiopathique. Rev Mal Respir 2012. [DOI: 10.1016/j.rmr.2011.10.064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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