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Zhao ML, Lu ZJ, Yang L, Ding S, Gao F, Liu YZ, Yang XL, Li X, He SY. The cardiovascular system at high altitude: A bibliometric and visualization analysis. World J Cardiol 2024; 16:199-214. [PMID: 38690218 PMCID: PMC11056872 DOI: 10.4330/wjc.v16.i4.199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 02/14/2024] [Accepted: 04/01/2024] [Indexed: 04/23/2024] Open
Abstract
BACKGROUND When exposed to high-altitude environments, the cardiovascular system undergoes various changes, the performance and mechanisms of which remain controversial. AIM To summarize the latest research advancements and hot research points in the cardiovascular system at high altitude by conducting a bibliometric and visualization analysis. METHODS The literature was systematically retrieved and filtered using the Web of Science Core Collection of Science Citation Index Expanded. A visualization analysis of the identified publications was conducted employing CiteSpace and VOSviewer. RESULTS A total of 1674 publications were included in the study, with an observed annual increase in the number of publications spanning from 1990 to 2022. The United States of America emerged as the predominant contributor, while Universidad Peruana Cayetano Heredia stood out as the institution with the highest publication output. Notably, Jean-Paul Richalet demonstrated the highest productivity among researchers focusing on the cardiovascular system at high altitude. Furthermore, Peter Bärtsch emerged as the author with the highest number of cited articles. Keyword analysis identified hypoxia, exercise, acclimatization, acute and chronic mountain sickness, pulmonary hypertension, metabolism, and echocardiography as the primary research hot research points and emerging directions in the study of the cardiovascular system at high altitude. CONCLUSION Over the past 32 years, research on the cardiovascular system in high-altitude regions has been steadily increasing. Future research in this field may focus on areas such as hypoxia adaptation, metabolism, and cardiopulmonary exercise. Strengthening interdisciplinary and multi-team collaborations will facilitate further exploration of the pathophysiological mechanisms underlying cardiovascular changes in high-altitude environments and provide a theoretical basis for standardized disease diagnosis and treatment.
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Affiliation(s)
- Mao-Lin Zhao
- Department of Cardiovascular Surgery, The General Hospital of Western Theater Command, College of Medicine, Southwest Jiaotong University, Chengdu 610083, Sichuan Province, China
| | - Zhong-Jie Lu
- Department of Cardiovascular Surgery, The General Hospital of Western Theater Command, College of Medicine, Southwest Jiaotong University, Chengdu 610083, Sichuan Province, China
| | - Li Yang
- Department of Cardiovascular Surgery, The General Hospital of Western Theater Command, College of Medicine, Southwest Jiaotong University, Chengdu 610083, Sichuan Province, China
| | - Sheng Ding
- Department of Cardiovascular Surgery, The General Hospital of Western Theater Command, College of Medicine, Southwest Jiaotong University, Chengdu 610083, Sichuan Province, China
| | - Feng Gao
- Department of Cardiovascular Surgery, The General Hospital of Western Theater Command, College of Medicine, Southwest Jiaotong University, Chengdu 610083, Sichuan Province, China
| | - Yuan-Zhang Liu
- Department of Cardiovascular Surgery, The General Hospital of Western Theater Command, College of Medicine, Southwest Jiaotong University, Chengdu 610083, Sichuan Province, China
| | - Xue-Lin Yang
- Department of Cardiovascular Surgery, The General Hospital of Western Theater Command, College of Medicine, Southwest Jiaotong University, Chengdu 610083, Sichuan Province, China
| | - Xia Li
- Department of Cardiovascular Surgery, The General Hospital of Western Theater Command, College of Medicine, Southwest Jiaotong University, Chengdu 610083, Sichuan Province, China
| | - Si-Yi He
- Department of Cardiovascular Surgery, The General Hospital of Western Theater Command, Chengdu 610083, Sichuan Province, China.
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Yuan M, Hu X, Xing W, Wu X, Pu C, Guo W, Zhu X, Yao M, Ao L, Li Z, Xu X. B2M is a Biomarker Associated With Immune Infiltration In High Altitude Pulmonary Edema. Comb Chem High Throughput Screen 2024; 27:168-185. [PMID: 37165489 PMCID: PMC10804239 DOI: 10.2174/1386207326666230510095840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 03/15/2023] [Accepted: 04/04/2023] [Indexed: 05/12/2023]
Abstract
BACKGROUND High altitude pulmonary edema (HAPE) is a serious mountain sickness with certain mortality. Its early diagnosis is very important. However, the mechanism of its onset and progression is still controversial. AIM This study aimed to analyze the HAPE occurrence and development mechanism and search for prospective biomarkers in peripheral blood. METHODS The difference genes (DEGs) of the Control group and the HAPE group were enriched by gene ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis, and then GSEA analysis was performed. After identifying the immune-related hub genes, QPCR was used to verify and analyze the hub gene function and diagnostic value with single-gene GSEA and ROC curves, and the drugs that acted on the hub gene was found in the CTD database. Immune infiltration and its association with the hub genes were analyzed using CIBERSORT. Finally, WGCNA was employed to investigate immune invasion cells' significantly related gene modules, following enrichment analysis of their GO and KEGG. RESULTS The dataset enrichment analysis, immune invasion analysis and WGCNA analysis showed that the occurrence and early progression of HAPE were unrelated to inflammation. The hub genes associated with immunity obtained with MCODE algorithm of Cytoscape were JAK2 and B2M.. RT-qPCR and ROC curves confirmed that the hub gene B2M was a specific biomarker of HAPE and had diagnostic value, and single-gene GSEA analysis confirmed that it participated in MHC I molecule-mediated antigen presentation ability decreased, resulting in reduced immunity. CONCLUSION Occurrence and early progression of high altitude pulmonary edema may not be related to inflammation. B2M may be a new clinical potential biomarker for HAPE for early diagnosis and therapeutic evaluation as well as therapeutic targets, and its decrease may be related to reduced immunity due to reduced ability of MCH I to participate in antigen submission.
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Affiliation(s)
- Mu Yuan
- Department of Stem Cell and Regenerative Medicine, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, 400010, Chongqing, China
- Central Laboratory, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, 400010, Chongqing, China
| | - Xueting Hu
- Department of Stem Cell and Regenerative Medicine, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, 400010, Chongqing, China
- Central Laboratory, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, 400010, Chongqing, China
| | - Wei Xing
- Department of Stem Cell and Regenerative Medicine, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, 400010, Chongqing, China
- Central Laboratory, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, 400010, Chongqing, China
| | - Xiaofeng Wu
- Department of Stem Cell and Regenerative Medicine, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, 400010, Chongqing, China
- Central Laboratory, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, 400010, Chongqing, China
| | - Chengxiu Pu
- Department of Stem Cell and Regenerative Medicine, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, 400010, Chongqing, China
- Central Laboratory, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, 400010, Chongqing, China
| | - Wei Guo
- Department of Stem Cell and Regenerative Medicine, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, 400010, Chongqing, China
- Central Laboratory, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, 400010, Chongqing, China
| | - Xiyan Zhu
- Department of Military Traffic Injury Prevention and Treatment, Daping Hospital, Army Medical University, 400010, Chongqing, China
| | - Mengwei Yao
- Department of Stem Cell and Regenerative Medicine, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, 400010, Chongqing, China
- Central Laboratory, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, 400010, Chongqing, China
| | - Luoquan Ao
- Department of Stem Cell and Regenerative Medicine, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, 400010, Chongqing, China
- Central Laboratory, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, 400010, Chongqing, China
| | - Zhan Li
- Department of Stem Cell and Regenerative Medicine, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, 400010, Chongqing, China
- Central Laboratory, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, 400010, Chongqing, China
| | - Xiang Xu
- Department of Stem Cell and Regenerative Medicine, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, 400010, Chongqing, China
- Central Laboratory, State Key Laboratory of Trauma, Burn and Combined Injury, Daping Hospital, Army Medical University, 400010, Chongqing, China
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Huang M, Zhang X, Yan W, Liu J, Wang H. Metabolomics reveals potential plateau adaptability by regulating
inflammatory response and oxidative stress-related metabolism and energy
metabolism pathways in yak. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2021; 64:97-109. [PMID: 35174345 PMCID: PMC8819316 DOI: 10.5187/jast.2021.e129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 11/14/2021] [Accepted: 11/30/2021] [Indexed: 11/23/2022]
Abstract
Species are facing strong selection pressures to adapt to inhospitable
high-altitude environments. Yaks are a valuable species and an iconic symbol of
the Qinghai-Tibet Plateau. Extensive studies of high-altitude adaptation have
been conducted, but few have focused on metabolism. In the present study, we
determined the differences in the serum metabolomics between yaks and the
closely related species of low-altitude yellow cattle and dairy cows. We
generated high-quality metabolite profiling data for 36 samples derived from the
three species, and a clear separation trend was obtained between yaks and the
other animals from principal component analysis. In addition, we identified a
total of 63 differentially expressed metabolites among the three species.
Functional analysis revealed that differentially expressed metabolites were
related to the innate immune activation, oxidative stress-related metabolism,
and energy metabolism in yaks, which indicates the important roles of
metabolites in high-altitude adaptation in yaks. The results provide new
insights into the mechanism of adaptation or acclimatization to high-altitude
environments in yaks and hypoxia-related diseases in humans.
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Affiliation(s)
- Meizhou Huang
- Department of Toxicology, School of Public
Health, Lanzhou University, Gansu 730000, China
- Academician (Expert) Workstation of
Sichuan Province, The Affiliated Hospital of Southwest Medical
University, Sichuan 646000, China
| | - Xin Zhang
- Department of Toxicology, School of Public
Health, Lanzhou University, Gansu 730000, China
| | - Wenjun Yan
- Agricultural and Rural Integrated Service
Center of Dachaigou Town, Tianzhu Tibetan Autonomous County,
Gansu 733202, China
| | - Jingjing Liu
- Department of Toxicology, School of Public
Health, Lanzhou University, Gansu 730000, China
| | - Hui Wang
- Department of Toxicology, School of Public
Health, Lanzhou University, Gansu 730000, China
- Corresponding author: Hui Wang, Department of
Toxicology, School of Public Health, Lanzhou University, Gansu 730000, China.
Tel: +86-13919330832, E-mail:
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Tan J, Gao C, Wang C, Ma L, Hou X, Liu X, Li Z. Expression of Aquaporin-1 and Aquaporin-5 in a Rat Model of High-Altitude Pulmonary Edema and the Effect of Hyperbaric Oxygen Exposure. Dose Response 2020; 18:1559325820970821. [PMID: 33192205 PMCID: PMC7607770 DOI: 10.1177/1559325820970821] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 09/24/2020] [Accepted: 10/08/2020] [Indexed: 11/29/2022] Open
Abstract
Objective: To investigate the therapeutic roles of hyperbaric oxygen exposure on high-altitude pulmonary edema and to determine whether aquaporin-1 and aquaporin-5 were involved in the pathogenesis of HAPE in rats. Methods: Rats were divided into 5 groups: The control group, the HAPE group (HAPE model), the HBO group (hyperbaric oxygen exposure), the NBO group (normobaric oxygen exposure), and the NA group (normal air exposure). Western blot and real-time PCR were used to analyze the pulmonary expressions of AQP1 and AQP5. The wet-to-dry (W/D) weight ratio and the morphology of the lung were also examined. Results: The lung W/D weight ratio in the HAPE group was increased compared with the control group. The injury score in the HBO group was noticeably lower than that in the control group. The mRNA and proteins expressions of AQP1 and AQP5 were significantly downregulated in the HAPE group. Conclusions: Oxygen exposure alleviated high-altitude hypobaric hypoxia-induced lung injury in rats. Additionally, HBO therapy had significant advantage on interstitial HAPE.
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Affiliation(s)
- Jiewen Tan
- Department of Rehabilitation Medicine, XinHua College, Sun Yat-Sen University, Guangzhou, China
| | - Chunjin Gao
- Department of Hyperbaric Oxygen, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Cong Wang
- Department of Hyperbaric Oxygen, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Linlin Ma
- Department of Hyperbaric Oxygen, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Xiaomin Hou
- Department of Hyperbaric Oxygen, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Xuehua Liu
- Department of Hyperbaric Oxygen, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Zhuo Li
- Department of Rehabilitation Medicine, XinHua College, Sun Yat-Sen University, Guangzhou, China
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Gong X, Sun Z, Huang Z, Zhou Q, Yu Z, Chen X, Shao W, Zheng Y, Liang Y, Qin S, Su Y, Ge J. Circulating metabolite profiles to predict response to cardiac resynchronization therapy. BMC Cardiovasc Disord 2020; 20:178. [PMID: 32299366 PMCID: PMC7164223 DOI: 10.1186/s12872-020-01443-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 03/24/2020] [Indexed: 12/04/2022] Open
Abstract
Background Heart failure is associated with ventricular dyssynchrony and energetic inefficiency, which can be alleviated by cardiac resynchronization therapy (CRT) with approximately one-third of non-response rate. Thus far, there is no specific biomarker to predict the response to CRT in patients with heart failure. In this study, we assessed the role of the blood metabolomic profile in predicting the response to CRT. Methods A total of 105 dilated cardiomyopathy patients with severe heart failure who received CRT were included in our two-stage study. Baseline blood samples were collected prior to CRT implantation. The response to CRT was defined according to echocardiographic criteria. Metabolomic profiling of serum samples was carried out using ultrahigh performance liquid chromatography coupled with quadrupole-time-of-flight mass spectrometry. Results Seventeen metabolites showed significant differences in their levels between responders and non-responders, and these metabolites were primarily involved in six pathways, including linoleic acid metabolism, Valine, leucine and isoleucine biosynthesis, phenylalanine metabolism, citrate cycle, tryptophan metabolism, and sphingolipid metabolism. A combination of isoleucine, tryptophan, and linoleic acid was identified as an ideal metabolite panel to distinguish responders from non-responders in the discovery set (n = 51 with an AUC of 0.981), and it was confirmed in the validation set (n = 54 with an AUC of 0.929). Conclusions Mass spectrometry based serum metabolomics approach provided larger coverage of metabolome which can help distinguish CRT responders from non-responders. A combination of isoleucine, tryptophan, and linoleic acid may associate with significant prognostic values for CRT.
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Affiliation(s)
- Xue Gong
- Department of Cardiology, Shanghai Institute of Cardiovascular Disease, Zhongshan Hospital, Fudan University, Shanghai, 200032, People's Republic of China
| | - Zhonghan Sun
- Human Phenome Institute, Fudan University, Shanghai, 200438, People's Republic of China
| | - Zheyong Huang
- Department of Cardiology, Shanghai Institute of Cardiovascular Disease, Zhongshan Hospital, Fudan University, Shanghai, 200032, People's Republic of China
| | - Qian Zhou
- Department of Traditional Chinese Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, People's Republic of China
| | - Ziqing Yu
- Department of Cardiology, Shanghai Institute of Cardiovascular Disease, Zhongshan Hospital, Fudan University, Shanghai, 200032, People's Republic of China
| | - Xueying Chen
- Department of Cardiology, Shanghai Institute of Cardiovascular Disease, Zhongshan Hospital, Fudan University, Shanghai, 200032, People's Republic of China
| | - Wenqi Shao
- Department of Laboratory, Zhongshan Hospital, Fudan University, Shanghai, 200032, People's Republic of China
| | - Yan Zheng
- Human Phenome Institute, Fudan University, Shanghai, 200438, People's Republic of China
| | - Yixiu Liang
- Department of Cardiology, Shanghai Institute of Cardiovascular Disease, Zhongshan Hospital, Fudan University, Shanghai, 200032, People's Republic of China
| | - Shengmei Qin
- Department of Cardiology, Shanghai Institute of Cardiovascular Disease, Zhongshan Hospital, Fudan University, Shanghai, 200032, People's Republic of China
| | - Yangang Su
- Department of Cardiology, Shanghai Institute of Cardiovascular Disease, Zhongshan Hospital, Fudan University, Shanghai, 200032, People's Republic of China.
| | - Junbo Ge
- Department of Cardiology, Shanghai Institute of Cardiovascular Disease, Zhongshan Hospital, Fudan University, Shanghai, 200032, People's Republic of China.
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Iron and Sphingolipids as Common Players of (Mal)Adaptation to Hypoxia in Pulmonary Diseases. Int J Mol Sci 2020; 21:ijms21010307. [PMID: 31906427 PMCID: PMC6981703 DOI: 10.3390/ijms21010307] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 12/24/2019] [Accepted: 12/31/2019] [Indexed: 12/11/2022] Open
Abstract
Hypoxia, or lack of oxygen, can occur in both physiological (high altitude) and pathological conditions (respiratory diseases). In this narrative review, we introduce high altitude pulmonary edema (HAPE), acute respiratory distress syndrome (ARDS), Chronic Obstructive Pulmonary Disease (COPD), and Cystic Fibrosis (CF) as examples of maladaptation to hypoxia, and highlight some of the potential mechanisms influencing the prognosis of the affected patients. Among the specific pathways modulated in response to hypoxia, iron metabolism has been widely explored in recent years. Recent evidence emphasizes hepcidin as highly involved in the compensatory response to hypoxia in healthy subjects. A less investigated field in the adaptation to hypoxia is the sphingolipid (SPL) metabolism, especially through Ceramide and sphingosine 1 phosphate. Both individually and in concert, iron and SPL are active players of the (mal)adaptation to physiological hypoxia, which can result in the pathological HAPE. Our aim is to identify some pathways and/or markers involved in the physiological adaptation to low atmospheric pressures (high altitudes) that could be involved in pathological adaptation to hypoxia as it occurs in pulmonary inflammatory diseases. Hepcidin, Cer, S1P, and their interplay in hypoxia are raising growing interest both as prognostic factors and therapeutical targets.
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Torretta E, Barbacini P, Al-Daghri NM, Gelfi C. Sphingolipids in Obesity and Correlated Co-Morbidities: The Contribution of Gender, Age and Environment. Int J Mol Sci 2019; 20:ijms20235901. [PMID: 31771303 PMCID: PMC6929069 DOI: 10.3390/ijms20235901] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/20/2019] [Accepted: 11/22/2019] [Indexed: 02/07/2023] Open
Abstract
This paper reviews our present knowledge on the contribution of ceramide (Cer), sphingomyelin (SM), dihydroceramide (DhCer) and sphingosine-1-phosphate (S1P) in obesity and related co-morbidities. Specifically, in this paper, we address the role of acyl chain composition in bodily fluids for monitoring obesity in males and females, in aging persons and in situations of environmental hypoxia adaptation. After a brief introduction on sphingolipid synthesis and compartmentalization, the node of detection methods has been critically revised as the node of the use of animal models. The latter do not recapitulate the human condition, making it difficult to compare levels of sphingolipids found in animal tissues and human bodily fluids, and thus, to find definitive conclusions. In human subjects, the search for putative biomarkers has to be performed on easily accessible material, such as serum. The serum “sphingolipidome” profile indicates that attention should be focused on specific acyl chains associated with obesity, per se, since total Cer and SM levels coupled with dyslipidemia and vitamin D deficiency can be confounding factors. Furthermore, exposure to hypoxia indicates a relationship between dyslipidemia, obesity, oxygen level and aerobic/anaerobic metabolism, thus, opening new research avenues in the role of sphingolipids.
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Affiliation(s)
- Enrica Torretta
- Department of Biomedical Sciences for Health, University of Milan, Luigi Mangiagalli 31, 20133 Milan, Italy; (E.T.); (P.B.)
| | - Pietro Barbacini
- Department of Biomedical Sciences for Health, University of Milan, Luigi Mangiagalli 31, 20133 Milan, Italy; (E.T.); (P.B.)
- Ph.D. school in Molecular and Translational Medicine, University of Milan, 20142 Milan, Italy
| | - Nasser M. Al-Daghri
- Chair for Biomarkers of Chronic Diseases, Biochemistry Department,College of Science, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Cecilia Gelfi
- Department of Biomedical Sciences for Health, University of Milan, Luigi Mangiagalli 31, 20133 Milan, Italy; (E.T.); (P.B.)
- I.R.C.C.S Orthopedic Institute Galeazzi, R. Galeazzi 4, 20161 Milan, Italy
- Correspondence: ; Tel.: +39-025-033-0475
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Abstract
Oxygen deficiency in the plateau environment weakens aerobic metabolism and reduces the energy supply, leading to high-altitude diseases including decreased circulatory function, decreased nutrient and energy supply to tissues and organs, and decreased waste discharge. The involvement of many metabolic pathways is reflected in dramatic changes in levels of endogenous small molecule metabolites. Metabolomics represents a promising technique for mechanistic studies and drug screening, and metabonomics, or quantitative metabolomics, has been increasingly applied to the study of hypoxic diseases and their pathogenesis, as well as to pharmacodynamics at high altitudes. In this article, we review the recent literature on the pathogenesis of altitude hypoxia and the clinical and preclinical metabonomics of drug interventions. Endogenous metabolites and metabolic pathways change significantly under high-altitude hypoxia. Some drug interventions have also been shown to regulate pathway metabolism, and the problems of applying metabonomics to hypoxic diseases at high altitude and the prospects for its future application are summarized.
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Affiliation(s)
- Yue Chang
- Department of Hepatopancreatobiliary and Splenic Medicine, Characteristic Medical Center of People's Armed Police Force, Tianjin, China.,Tianjin Key Laboratory of Hepatopancreatic Fibrosis and Molecular Diagnosis and Treatment, Tianjin, China
| | - Wen Zhang
- Department of Hepatopancreatobiliary and Splenic Medicine, Characteristic Medical Center of People's Armed Police Force, Tianjin, China.,Tianjin Key Laboratory of Hepatopancreatic Fibrosis and Molecular Diagnosis and Treatment, Tianjin, China
| | - Kai Chen
- Department of Hepatopancreatobiliary and Splenic Medicine, Characteristic Medical Center of People's Armed Police Force, Tianjin, China.,Tianjin Key Laboratory of Hepatopancreatic Fibrosis and Molecular Diagnosis and Treatment, Tianjin, China
| | - Zhenguo Wang
- Department of Hepatopancreatobiliary and Splenic Medicine, Characteristic Medical Center of People's Armed Police Force, Tianjin, China
| | - Shihai Xia
- Department of Hepatopancreatobiliary and Splenic Medicine, Characteristic Medical Center of People's Armed Police Force, Tianjin, China.,Tianjin Key Laboratory of Hepatopancreatic Fibrosis and Molecular Diagnosis and Treatment, Tianjin, China
| | - Hai Li
- Tianjin Key Laboratory of Hepatopancreatic Fibrosis and Molecular Diagnosis and Treatment, Tianjin, China.,Division of Gastroenterology and Hepatology, Tianjin Xiqing Hospital, Tianjin, China
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Cogolludo A, Villamor E, Perez-Vizcaino F, Moreno L. Ceramide and Regulation of Vascular Tone. Int J Mol Sci 2019; 20:ijms20020411. [PMID: 30669371 PMCID: PMC6359388 DOI: 10.3390/ijms20020411] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 01/02/2019] [Accepted: 01/16/2019] [Indexed: 02/07/2023] Open
Abstract
In addition to playing a role as a structural component of cellular membranes, ceramide is now clearly recognized as a bioactive lipid implicated in a variety of physiological functions. This review aims to provide updated information on the role of ceramide in the regulation of vascular tone. Ceramide may induce vasodilator or vasoconstrictor effects by interacting with several signaling pathways in endothelial and smooth muscle cells. There is a clear, albeit complex, interaction between ceramide and redox signaling. In fact, reactive oxygen species (ROS) activate different ceramide generating pathways and, conversely, ceramide is known to increase ROS production. In recent years, ceramide has emerged as a novel key player in oxygen sensing in vascular cells and mediating vascular responses of crucial physiological relevance such as hypoxic pulmonary vasoconstriction (HPV) or normoxic ductus arteriosus constriction. Likewise, a growing body of evidence over the last years suggests that exaggerated production of vascular ceramide may have detrimental effects in a number of pathological processes including cardiovascular and lung diseases.
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Affiliation(s)
- Angel Cogolludo
- Department of Pharmacology and Toxicology, School of Medicine, University Complutense of Madrid, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Ciudad Universitaria S/N, 28040 Madrid, Spain.
- Ciber Enfermedades Respiratorias (CIBERES), 28029 Madrid, Spain.
| | - Eduardo Villamor
- Department of Pediatrics, Maastricht University Medical Center (MUMC+), School for Oncology and Developmental Biology (GROW), 6202 AZ Maastricht, The Netherlands.
| | - Francisco Perez-Vizcaino
- Department of Pharmacology and Toxicology, School of Medicine, University Complutense of Madrid, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Ciudad Universitaria S/N, 28040 Madrid, Spain.
- Ciber Enfermedades Respiratorias (CIBERES), 28029 Madrid, Spain.
| | - Laura Moreno
- Department of Pharmacology and Toxicology, School of Medicine, University Complutense of Madrid, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Ciudad Universitaria S/N, 28040 Madrid, Spain.
- Ciber Enfermedades Respiratorias (CIBERES), 28029 Madrid, Spain.
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An integrated portable system for single chip simultaneous measurement of multiple disease associated metabolites. Biosens Bioelectron 2018; 122:88-94. [PMID: 30245326 DOI: 10.1016/j.bios.2018.09.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 08/31/2018] [Accepted: 09/01/2018] [Indexed: 01/22/2023]
Abstract
Metabolites, the small molecules that underpin life, can act as indicators of the physiological state of the body when their abundance varies, offering routes to diagnosis of many diseases. The ability to assay for multiple metabolites simultaneously will underpin a new generation of precision diagnostic tools. Here, we report the development of a handheld device based on complementary metal oxide semiconductor (CMOS) technology with multiple isolated micro-well reaction zones and integrated optical sensing allowing simultaneous enzyme-based assays of multiple metabolites (choline, xanthine, sarcosine and cholesterol) associated with multiple diseases. These metabolites were measured in clinically relevant concentration range with minimum concentrations measured: 25 μM for choline, 100 μM for xanthine, 1.25 μM for sarcosine and 50 μM for cholesterol. Linking the device to an Android-based user interface allows for quantification of metabolites in serum and urine within 2 min of applying samples to the device. The quantitative performance of the device was validated by comparison to accredited tests for cholesterol and glucose.
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11
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Rockel JS, Zhang W, Shestopaloff K, Likhodii S, Sun G, Furey A, Randell E, Sundararajan K, Gandhi R, Zhai G, Kapoor M. A classification modeling approach for determining metabolite signatures in osteoarthritis. PLoS One 2018; 13:e0199618. [PMID: 29958292 PMCID: PMC6025859 DOI: 10.1371/journal.pone.0199618] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 04/27/2018] [Indexed: 11/18/2022] Open
Abstract
Multiple factors can help predict knee osteoarthritis (OA) patients from healthy individuals, including age, sex, and BMI, and possibly metabolite levels. Using plasma from individuals with primary OA undergoing total knee replacement and healthy volunteers, we measured lysophosphatidylcholine (lysoPC) and phosphatidylcholine (PC) analogues by metabolomics. Populations were stratified on demographic factors and lysoPC and PC analogue signatures were determined by univariate receiver-operator curve (AUC) analysis. Using signatures, multivariate classification modeling was performed using various algorithms to select the most consistent method as measured by AUC differences between resampled training and test sets. Lists of metabolites indicative of OA [AUC > 0.5] were identified for each stratum. The signature from males age > 50 years old encompassed the majority of identified metabolites, suggesting lysoPCs and PCs are dominant indicators of OA in older males. Principal component regression with logistic regression was the most consistent multivariate classification algorithm tested. Using this algorithm, classification of older males had fair power to classify OA patients from healthy individuals. Thus, individual levels of lysoPC and PC analogues may be indicative of individuals with OA in older populations, particularly males. Our metabolite signature modeling method is likely to increase classification power in validation cohorts.
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Affiliation(s)
- Jason S. Rockel
- Arthritis Program, Toronto Western Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
- Krembil Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Weidong Zhang
- Discipline of Genetics, Faculty of Medicine, Memorial University of Newfoundland, St John’s, Newfoundland, Canada
- School of Pharmaceutical Sciences, Jilin University, Changchun, P.R. China
| | - Konstantin Shestopaloff
- Arthritis Program, Toronto Western Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
- Krembil Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Sergei Likhodii
- Department of Laboratory Medicine, Faculty of Medicine, Memorial University of Newfoundland, St John’s, Newfoundland, Canada
| | - Guang Sun
- Discipline of Medicine, Faculty of Medicine, Memorial University of Newfoundland, St John’s, Newfoundland, Canada
| | - Andrew Furey
- Department of Surgery, Faculty of Medicine, Memorial University of Newfoundland, St John’s, Newfoundland, Canada
| | - Edward Randell
- Department of Laboratory Medicine, Faculty of Medicine, Memorial University of Newfoundland, St John’s, Newfoundland, Canada
| | - Kala Sundararajan
- Arthritis Program, Toronto Western Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
- Krembil Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Rajiv Gandhi
- Arthritis Program, Toronto Western Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
- Krembil Research Institute, University Health Network, Toronto, Ontario, Canada
- Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Guangju Zhai
- Discipline of Genetics, Faculty of Medicine, Memorial University of Newfoundland, St John’s, Newfoundland, Canada
- Menzies Research Institute, University of Tasmania, Hobart, Tasmania, Australia
- * E-mail: (GZ); (MK)
| | - Mohit Kapoor
- Arthritis Program, Toronto Western Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
- Krembil Research Institute, University Health Network, Toronto, Ontario, Canada
- Department of Surgery, University of Toronto, Toronto, Ontario, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Ontario, Canada
- * E-mail: (GZ); (MK)
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12
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Paul S, Gangwar A, Bhargava K, Khurana P, Ahmad Y. Diagnosis and prophylaxis for high-altitude acclimatization: Adherence to molecular rationale to evade high-altitude illnesses. Life Sci 2018; 203:171-176. [PMID: 29698652 DOI: 10.1016/j.lfs.2018.04.040] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 04/13/2018] [Accepted: 04/21/2018] [Indexed: 11/25/2022]
Abstract
Lack of zero side-effect, prescription-less prophylactics and diagnostic markers of acclimatization status lead to many suffering from high altitude illnesses. Although not fully translated to the clinical setting, many strategies and interventions are being developed that are aimed at providing an objective and tangible answer regarding the acclimatization status of an individual as well as zero side-effect prophylaxis that is cost-effective and does not require medical supervision. This short review brings together the twin problems associated with high-altitude acclimatization, i.e. acclimatization status and zero side-effect, easy-to-use prophylaxis, for the reader to comprehend as cogs of the same phenomenon. We describe current research aimed at preventing all the high-altitude illnesses by considering them an assault on redox and energy homeostasis at the molecular level. This review also entails some proteins capable of diagnosing either acclimatization or high-altitude illnesses. The future strategies based on bioinformatics and systems biology is also discussed.
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Affiliation(s)
- Subhojit Paul
- Peptide & Proteomics Division, Defence Institute of Physiology & Allied Sciences (DIPAS), Defence R&D Organization (DRDO), Timarpur, New Delhi 110054, India
| | - Anamika Gangwar
- Peptide & Proteomics Division, Defence Institute of Physiology & Allied Sciences (DIPAS), Defence R&D Organization (DRDO), Timarpur, New Delhi 110054, India
| | - Kalpana Bhargava
- Peptide & Proteomics Division, Defence Institute of Physiology & Allied Sciences (DIPAS), Defence R&D Organization (DRDO), Timarpur, New Delhi 110054, India
| | - Pankaj Khurana
- Peptide & Proteomics Division, Defence Institute of Physiology & Allied Sciences (DIPAS), Defence R&D Organization (DRDO), Timarpur, New Delhi 110054, India
| | - Yasmin Ahmad
- Peptide & Proteomics Division, Defence Institute of Physiology & Allied Sciences (DIPAS), Defence R&D Organization (DRDO), Timarpur, New Delhi 110054, India.
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13
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He Y, Zhang X, Li X, Du J, He X, Zhang Z, Zhang Y, Kang L, Jin T, Yuan D. Telomere length-related gene ACYP2 polymorphism is associated with the risk of HAPE in Chinese Han population. J Gene Med 2018; 18:244-9. [PMID: 27552709 DOI: 10.1002/jgm.2896] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 08/04/2016] [Accepted: 08/19/2016] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND High altitude pulmonary edema (HAPE) is a type of pneumonedema that mostly occurs under conditions such as high altitude, rapid ascent and hypoxia, amongst others. The ACYP2 polymorphism is suggested to be associated with mean telomere length, and telomere length is significantly longer at a moderate attitude than at sea-level or at simulated high attitude. The present study aimed to determine whethher there is any association between ACYP2 polymorphism and the risk of HAPE. METHODS A total of 265 patients and 303 healthy controls were enrolled in our case-control study. Six SNPs were selected and genotyped using the Sequenom MassARRAY method. Odds ratios (ORs) and 95% confidence intervals (95% CIs) were calculated by unconditional logistic regression with adjustment for gender and age. RESULTS Using chi-squared tests, we found that the minor allele G of rs11896604 is significantly associated with a decreased risk of HAPE [odds ratio (OR) = 0.87, 95% confidence interval (CI) = 0.65-1.16, p = 0.048]. We also found that the 'A/A' genotype of rs12615793 is associated with a decreased risk of HAPE based on the recessive model (OR =0.28; 95% CI = 0.09-0.88; p = 0.017). Additionally, the 'G/G' genotype of rs11896604 was found to be associated with a decreased risk of HAPE based on the codominant model (OR =0.26; 95% CI = 0.08-0.79; p = 0.025) and recessive model (OR =0.25; 95% CI = 0.08-0.77; p = 0.007). However, only rs11896604 remained significant after Bonferroni correction (p < 0.0083). CONCLUSIONS The present study found that the ACYP2 gene polymorphism significantly decreased the risk of HAPE. Copyright © 2016 John Wiley & Sons, Ltd. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Yongjun He
- Key Laboratory of Molecular Mechanism and Intervention Research for Plateau Diseases of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shaanxi, China.,Key Laboratory of High Altitude Environment and Genes Related to Diseases of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shaanxi, China.,Key Laboratory for Basic Life Science Research of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shaanxi, China
| | - Xiyang Zhang
- Xi'an Tiangen Precision Medical Institute, Xi'an, Shaanxi, China
| | - Xun Li
- The Center of Altitude Disease, General Hospital of Tibet Military Area Command, Lhasa, Tibet, China
| | - Jieli Du
- Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Xue He
- Key Laboratory of Molecular Mechanism and Intervention Research for Plateau Diseases of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shaanxi, China.,Key Laboratory of High Altitude Environment and Genes Related to Diseases of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shaanxi, China.,Key Laboratory for Basic Life Science Research of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shaanxi, China
| | - Zhiying Zhang
- Key Laboratory of Molecular Mechanism and Intervention Research for Plateau Diseases of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shaanxi, China.,Key Laboratory of High Altitude Environment and Genes Related to Diseases of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shaanxi, China.,Key Laboratory for Basic Life Science Research of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shaanxi, China
| | - Yuan Zhang
- Key Laboratory of Molecular Mechanism and Intervention Research for Plateau Diseases of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shaanxi, China.,Key Laboratory of High Altitude Environment and Genes Related to Diseases of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shaanxi, China.,Key Laboratory for Basic Life Science Research of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shaanxi, China
| | - Longli Kang
- Key Laboratory of Molecular Mechanism and Intervention Research for Plateau Diseases of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shaanxi, China.,Key Laboratory of High Altitude Environment and Genes Related to Diseases of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shaanxi, China.,Key Laboratory for Basic Life Science Research of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shaanxi, China
| | - Tianbo Jin
- Key Laboratory of Molecular Mechanism and Intervention Research for Plateau Diseases of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shaanxi, China. .,Key Laboratory of High Altitude Environment and Genes Related to Diseases of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shaanxi, China. .,Key Laboratory for Basic Life Science Research of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shaanxi, China. .,Xi'an Tiangen Precision Medical Institute, Xi'an, Shaanxi, China.
| | - Dongya Yuan
- Key Laboratory of Molecular Mechanism and Intervention Research for Plateau Diseases of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shaanxi, China. .,Key Laboratory of High Altitude Environment and Genes Related to Diseases of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shaanxi, China. .,Key Laboratory for Basic Life Science Research of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shaanxi, China.
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14
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Wu Q, Zhang H, Ding JR, Hong ZY, Wu H, Zhu ZY, Guo ZY, Chai YF. UPLC-QTOF MS-Based Serum Metabolomic Profiling Analysis Reveals the Molecular Perturbations Underlying Uremic Pruritus. BIOMED RESEARCH INTERNATIONAL 2018; 2018:4351674. [PMID: 29546058 PMCID: PMC5818897 DOI: 10.1155/2018/4351674] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 08/02/2017] [Accepted: 11/14/2017] [Indexed: 01/19/2023]
Abstract
As one of the most troublesome complications in patients with chronic renal disease, the etiology of uremic pruritus remains unknown, and the current therapeutic approaches are limited and unsatisfactory. To identify potential biomarkers for improving diagnosis and treatment and obtain a better understanding of the pathogenesis of uremic pruritus, we compared serum metabolome profiles of severe uremic pruritus (HUP) patients with mild uremic pruritus (LUP) patients using ultraperformance liquid chromatography-quadruple time-of-flight mass spectrometry (UPLC-QTOF MS). Partial least squares discriminant analysis (PLS-DA) showed that the metabolic profiles of HUP patients are distinguishable from those of LUP patients. Combining multivariate with univariate analysis, 22 significantly different metabolites between HUP and LUP patients were identified. Nine of the 22 metabolites in combination were characterized by a maximum area-under-receiver operating characteristic curve (AUC = 0.899) with a sensitivity of 85.1% and a specificity of 83.0% distinguishing HUP and LUP. Our results indicate that serum metabolome profiling might serve as a promising approach for the diagnosis of uremic pruritus and that the identified biomarkers may improve the understanding of pathophysiology of this disorder. Because the 9 metabolites were phospholipids, uremic toxins, and steroids, further studies may reveal their possible role in the pathogenesis of uremic pruritus.
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Affiliation(s)
- Qiong Wu
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Huan Zhang
- Department of Nephrology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Jia-rong Ding
- Department of Nephrology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Zhan-ying Hong
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Hao Wu
- Department of Nephrology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Zhen-yu Zhu
- Analysis and Measurement Center, School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Zhi-yong Guo
- Department of Nephrology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Yi-feng Chai
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China
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15
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Ma Q, Li PL, Hua YL, Ji P, Yao WL, Zhang XS, Zhong LJ, Wei YM. Effects of Tao-Hong-Si-Wu decoction on acute blood stasis in rats based on a LC-Q/TOF-MS metabolomics and network approach. Biomed Chromatogr 2017; 32. [PMID: 29149492 DOI: 10.1002/bmc.4144] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Revised: 10/27/2017] [Accepted: 11/03/2017] [Indexed: 12/15/2022]
Abstract
A novel approach using metabolomics coupled with a metabolic network was used to investigate the effects of Tao-Hong-Si-Wu decoction (THSWD) on the rat model of acute blood stasis syndrome. Acute blood stasis syndrome was induced by placing the rats in ice-cold water following two injections with epinephrine. The hemorheological indicators [whole blood viscosity (WBV) and plasma viscosity (PV)] and the blood coagulation indicators [thrombin time (TT), prothrombin time (PT), activated partial thromboplastin time (APTT) and fibrinogen (FIB)] were detected. The nonparametric univariate method and multivariate statistical analysis were performed for determining the potential biomarkers. A correlation map was structured between biochemical indicators and hub metabolites to explain the effects mechanism of THSWD. After the administration of THSWD, the levels of WBV, PV, TT, APTT and FIB returned to levels observed in the control group. According to metabolomics coupled with metabolic network analysis, the intervention of THSWD in rats with acute blood stasis syndrome induced substantial and characteristic changes in their metabolic profiles. Fifteen metabolites were screened, which mainly involved 10 pathways and five hub metabolites, namely, l-glutamate, l-phenylalanine, N-acylsphingosine, arachidonic acid and phosphatidate. The biochemical indicators and hub metabolites could be adjusted to close to normal levels by THSWD. Therefore, combining metabolomics and metabolic network helped to evaluate the effects of THSWD on acute blood stasis.
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Affiliation(s)
- Qi Ma
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu Province, China
| | - Peng-Ling Li
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu Province, China
| | - Yong-Li Hua
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu Province, China
| | - Peng Ji
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu Province, China
| | - Wan-Ling Yao
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu Province, China
| | - Xiao-Song Zhang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu Province, China
| | - Li-Jia Zhong
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu Province, China
| | - Yan-Ming Wei
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu Province, China
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16
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Xu S, Zhou Y, Geng H, Song D, Tang J, Zhu X, Yu D, Hu S, Cui Y. Serum Metabolic Profile Alteration Reveals Response to Platinum-Based Combination Chemotherapy for Lung Cancer: Sensitive Patients Distinguished from Insensitive ones. Sci Rep 2017; 7:17524. [PMID: 29235457 PMCID: PMC5727535 DOI: 10.1038/s41598-017-16085-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 11/06/2017] [Indexed: 01/05/2023] Open
Abstract
Most lung cancers are diagnosed at fairly advanced stages due to limited clinical symptoms. Platinum-based chemotherapy, either as single regimen or in combination with radiation, is one of the major recommendations for the patients. Earlier evaluation of the effectiveness of the chemotherapies is critical for developing better treatment plan given the toxicity of the chemotherapeutic reagents. Drug efficacy could be reflected in the systemic metabolism characteristics though knowledge about which remains scarce. In this study, serum metabolism influence of three types of commonly used platinum-based combination chemotherapy regimens, namely cisplatin with gemcitabine, vinorelbine or docetaxel, were studied using pattern recognition coupled with nuclear magnetic resonance techniques. The treated patients were divided into sensitive or insensitive subgroups according to their response to the treatments. We found that insensitive subjects can be identified from the sensitive ones with up-regulation of glucose and taurine but reduced alanine and lactate concentrations in serum. The combination chemotherapy of lung cancer is accompanied by disturbances of multiple metabolic pathways such as energy metabolism, phosphatidylcholine biosynthesis, so that the treated patients were marginally discriminated from the untreated. Serum metabolic profile of patients shows potential as an indicator of their response to platinum-based combination chemotherapy.
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Affiliation(s)
- Shan Xu
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, Central China Normal University, Wuhan, 430079, P. R. China.,Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, P.R. China.,CAS Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, University of Chinese Academy of Sciences, Wuhan, 430071, China
| | - Yanping Zhou
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, Central China Normal University, Wuhan, 430079, P. R. China
| | - Hui Geng
- Department of Life Sciences, Central China Normal University, Wuhan, 430079, P. R. China
| | - Dandan Song
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, Central China Normal University, Wuhan, 430079, P. R. China
| | - Jing Tang
- Department of Medical Oncology, Hubei Province Tumor Hospital, Wuhan, 430079, P.R. China
| | - Xianmin Zhu
- Department of Medical Oncology, Hubei Province Tumor Hospital, Wuhan, 430079, P.R. China
| | - Di Yu
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton VIC 3800, Australia
| | - Sheng Hu
- Department of Medical Oncology, Hubei Province Tumor Hospital, Wuhan, 430079, P.R. China.
| | - Yanfang Cui
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, Central China Normal University, Wuhan, 430079, P. R. China. .,Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton VIC 3800, Australia.
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17
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STAT3-RXR-Nrf2 activates systemic redox and energy homeostasis upon steep decline in pO 2 gradient. Redox Biol 2017; 14:423-438. [PMID: 29078168 PMCID: PMC5680518 DOI: 10.1016/j.redox.2017.10.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 08/30/2017] [Accepted: 10/15/2017] [Indexed: 01/04/2023] Open
Abstract
Hypobaric hypoxia elicits several patho-physiological manifestations, some of which are known to be lethal. Among various molecular mechanisms proposed so far, perturbation in redox state due to imbalance between radical generation and antioxidant defence is promising. These molecular events are also related to hypoxic status of cancer cells and therefore its understanding has extended clinical advantage beyond high altitude hypoxia. In present study, however, the focus was to understand and propose a model for rapid acclimatization of high altitude visitors to enhance their performance based on molecular changes. We considered using simulated hypobaric hypoxia at some established thresholds of high altitude stratification based on known physiological effects. Previous studies have focused on the temporal aspect while overlooking the effects of varying pO2 levels during exposure to hypobaric hypoxia. The pO2 levels, indicative of altitude, are crucial to redox homeostasis and can be the limiting factor during acclimatization to hypobaric hypoxia. In this study we present the effects of acute (24h) exposure to high (3049m; pO2: 71kPa), very high (4573m; pO2: 59kPa) and extreme altitude (7620m; pO2: 40kPa) zones on lung and plasma using semi-quantitative redox specific transcripts and quantitative proteo-bioinformatics workflow in conjunction with redox stress assays. It was observed that direct exposure to extreme altitude caused 100% mortality, which turned into high survival rate after pre-exposure to 59kPa, for which molecular explanation were also found. The pO2 of 59kPa (very high altitude zone) elicits systemic energy and redox homeostatic processes by modulating the STAT3-RXR-Nrf2 trio. Finally we posit the various processes downstream of STAT3-RXR-Nrf2 and the plasma proteins that can be used to ascertain the redox status of an individual.
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18
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Liu C, Chen J, Liu B, Liao WT, Liu J, Xu G, Sun BD, Zhang EL, Gao YQ. Activated corticosterone synthetic pathway is involved in poor responses to re-oxygenation after prolonged hypoxia. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2017; 10:8414-8423. [PMID: 31966693 PMCID: PMC6965453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 06/20/2017] [Indexed: 06/10/2023]
Abstract
Diverse response patterns to re-oxygenation lead to various physiological or pathological phenotypes, but now lack of systematic research models in vivo. High-altitude de-acclimatization syndrome (HADAS) describes systematic alterations of re-oxygenation returning to plain after a long living in high altitude. In this study, we aim at employing a comprehensive metabolomics to explore the mechanisms for different reactions to re-oxygenation based on systematic quantitation scoring methods of HADAS model. Plasma samples were collected from 22 subjects when they finished their stay in high altitude for 1 year (5300 m), returning plain for 30th day and 180th day. These participants were divided into HADAS-S or HADAS-R group based on HADAS model on the 30th day after their reaching. Metabolic profiling was performed by ultra-performance liquid chromatography-quadrupole time-of-light mass spectrometry (UPLC-QTOFMS) in conjunction with univariate and multivariate statistical analysis. A total of 20 differential metabolites were identified by the comparison between HADAS-S and HADAS-R group. Pathway analysis suggested that the most potential disturbed pathway is sterol synthesis pathway, especially corticosterone synthetic sub-pathway. These molecules detected in this pathway are detailed that they showed a rapid and significant increasing manner in HADAS-S subjects comparing to HADAS-R group in the process of re-oxygenation. In conclusion, we identified that excessive stress responses to re-oxygenation might contribute to the distinctions between HADAS-S and HADAS-R group. These findings provide novel insights for further understanding of the pathogenesis for metabolic abnormalities in re-oxygenation after prolonged hypoxia.
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Affiliation(s)
- Chang Liu
- Institute of Medicine and Hygienic Equipment for High Altitude Region, College of High Altitude Military Medicine, Third Military Medical UniversityChongqing, China
- Key Laboratory of High Altitude Environmental Medicine, Third Military Medical University, Ministry of EducationChongqing, China
- Key Laboratory of High Altitude Medicine, PLAChongqing, China
| | - Jian Chen
- Institute of Medicine and Hygienic Equipment for High Altitude Region, College of High Altitude Military Medicine, Third Military Medical UniversityChongqing, China
- Key Laboratory of High Altitude Environmental Medicine, Third Military Medical University, Ministry of EducationChongqing, China
- Key Laboratory of High Altitude Medicine, PLAChongqing, China
| | - Bao Liu
- Institute of Medicine and Hygienic Equipment for High Altitude Region, College of High Altitude Military Medicine, Third Military Medical UniversityChongqing, China
- Key Laboratory of High Altitude Environmental Medicine, Third Military Medical University, Ministry of EducationChongqing, China
- Key Laboratory of High Altitude Medicine, PLAChongqing, China
| | - Wen-Ting Liao
- Institute of Medicine and Hygienic Equipment for High Altitude Region, College of High Altitude Military Medicine, Third Military Medical UniversityChongqing, China
- Key Laboratory of High Altitude Environmental Medicine, Third Military Medical University, Ministry of EducationChongqing, China
- Key Laboratory of High Altitude Medicine, PLAChongqing, China
| | - Jie Liu
- Institute of Medicine and Hygienic Equipment for High Altitude Region, College of High Altitude Military Medicine, Third Military Medical UniversityChongqing, China
- Key Laboratory of High Altitude Environmental Medicine, Third Military Medical University, Ministry of EducationChongqing, China
- Key Laboratory of High Altitude Medicine, PLAChongqing, China
| | - Gang Xu
- Institute of Medicine and Hygienic Equipment for High Altitude Region, College of High Altitude Military Medicine, Third Military Medical UniversityChongqing, China
- Key Laboratory of High Altitude Environmental Medicine, Third Military Medical University, Ministry of EducationChongqing, China
- Key Laboratory of High Altitude Medicine, PLAChongqing, China
| | - Bing-Da Sun
- Institute of Medicine and Hygienic Equipment for High Altitude Region, College of High Altitude Military Medicine, Third Military Medical UniversityChongqing, China
- Key Laboratory of High Altitude Environmental Medicine, Third Military Medical University, Ministry of EducationChongqing, China
- Key Laboratory of High Altitude Medicine, PLAChongqing, China
| | - Er-Long Zhang
- Institute of Medicine and Hygienic Equipment for High Altitude Region, College of High Altitude Military Medicine, Third Military Medical UniversityChongqing, China
- Key Laboratory of High Altitude Environmental Medicine, Third Military Medical University, Ministry of EducationChongqing, China
- Key Laboratory of High Altitude Medicine, PLAChongqing, China
| | - Yu-Qi Gao
- Institute of Medicine and Hygienic Equipment for High Altitude Region, College of High Altitude Military Medicine, Third Military Medical UniversityChongqing, China
- Key Laboratory of High Altitude Environmental Medicine, Third Military Medical University, Ministry of EducationChongqing, China
- Key Laboratory of High Altitude Medicine, PLAChongqing, China
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19
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Paul S, Bhargava K, Ahmad Y. The meta-analytical paradigm in an in silico hybrid: Pathways and networks perturbed during exposure to varying degrees of hypobaric hypoxia. Proteomics Clin Appl 2017; 11. [PMID: 28155252 DOI: 10.1002/prca.201600160] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 01/23/2017] [Accepted: 01/31/2017] [Indexed: 01/11/2023]
Abstract
PURPOSE Computational biology has opened a gateway to omics data analysis and shifted the focus from molecules to systemic molecular networks in the domain of hypobaric hypoxia (HH). Yet there are no meta-analytical investigations circumventing constraints such as organism (rat/human), HH exposure conditions (acute/chronic), and the tissues that can be investigated simultaneously in the realm of wet lab experiments. EXPERIMENTAL DESIGN We analyzed 154 differentially expressed proteins upon HH exposure using Ingenuity Pathway Analysis (IPA) tool, without the constraint of using a single organism or tissue type, to determine the most significant pathways and networks that are perturbed across a range of HH conditions. RESULTS We found acute phase response signaling, farsenoid X receptor/retinoid X receptor activation, liver X receptor/retinoid X receptor activation, clathrin-mediated endocytosis signaling, mitochondrial dysfunction, production of nitric oxide and ROS in macrophages, and integrin signaling to be the most significant universally perturbed pathways. Unique protein-function relationships have also been highlighted. CONCLUSION AND CLINICAL RELEVANCE This meta-analysis provides a list of specific pathways and networks across two model organisms that are perturbed due to HH exposure irrespective of its duration/intensity. Thus, it will be a map of important pathways and proteins to look at when exploring effects of HH exposure irrespective of tissue/organism chosen, particularly in the context of prophylactic/therapeutic targets.
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Affiliation(s)
- Subhojit Paul
- Peptide & Proteomics Division, Defence Institute Of Physiology & Allied Sciences (DIPAS), Defence R&D Organization (DRDO), Ministry of Defence, Timarpur, New Delhi, India
| | - Kalpana Bhargava
- Peptide & Proteomics Division, Defence Institute Of Physiology & Allied Sciences (DIPAS), Defence R&D Organization (DRDO), Ministry of Defence, Timarpur, New Delhi, India
| | - Yasmin Ahmad
- Peptide & Proteomics Division, Defence Institute Of Physiology & Allied Sciences (DIPAS), Defence R&D Organization (DRDO), Ministry of Defence, Timarpur, New Delhi, India
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HMOX1 Promoter Microsatellite Polymorphism Is Not Associated With High Altitude Pulmonary Edema in Han Chinese. Wilderness Environ Med 2017; 28:17-22. [PMID: 28257713 DOI: 10.1016/j.wem.2016.12.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 11/10/2016] [Accepted: 12/06/2016] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To investigate the relationship between microsatellite polymorphism in the Heme oxygenase-1 (HMOX1) gene promoter and high-altitude pulmonary edema (HAPE) in Han Chinese. METHODS Eighty-three construction workers who developed HAPE 2 to 7 days after arrival at Yushu (3800 m) in Qinghai, China, and 145 matched healthy subjects were included in this study. The amplification and labeling of the polymerase chain reaction products for capillary electrophoresis were performed to identify HMOX1 genotype frequency. The alleles were classified as short (S: <25 [GT]n repeats) and long (L: ≥25 [GT]n repeats) alleles. RESULTS Patients with HAPE have significantly higher white blood cell count, heart rate, and mean pulmonary artery pressure, but lower hemoglobin and arterial oxygen saturation than healthy subjects without HAPE. The numbers of (GT)n repeats in the HMOX1 gene promoter show a bimodal distribution. However, there is no significant difference in the genotype frequency and allele frequency between patients with HAPE and healthy subjects without HAPE. Chi-square test analysis reveals that the genotype frequency of (GT)n repeats is not associated with HAPE. CONCLUSION The microsatellite polymorphism in the HMOX1 gene promoter is not associated with HAPE in Han Chinese in Qinghai, China.
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Trivedi DK, Hollywood KA, Goodacre R. Metabolomics for the masses: The future of metabolomics in a personalized world. NEW HORIZONS IN TRANSLATIONAL MEDICINE 2017; 3:294-305. [PMID: 29094062 PMCID: PMC5653644 DOI: 10.1016/j.nhtm.2017.06.001] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 06/02/2017] [Accepted: 06/02/2017] [Indexed: 02/07/2023]
Abstract
Current clinical practices focus on a small number of biochemical directly related to the pathophysiology with patients and thus only describe a very limited metabolome of a patient and fail to consider the interations of these small molecules. This lack of extended information may prevent clinicians from making the best possible therapeutic interventions in sufficient time to improve patient care. Various post-genomics '('omic)' approaches have been used for therapeutic interventions previously. Metabolomics now a well-established'omics approach, has been widely adopted as a novel approach for biomarker discovery and in tandem with genomics (especially SNPs and GWAS) has the potential for providing systemic understanding of the underlying causes of pathology. In this review, we discuss the relevance of metabolomics approaches in clinical sciences and its potential for biomarker discovery which may help guide clinical interventions. Although a powerful and potentially high throughput approach for biomarker discovery at the molecular level, true translation of metabolomics into clinics is an extremely slow process. Quicker adaptation of biomarkers discovered using metabolomics can be possible with novel portable and wearable technologies aided by clever data mining, as well as deep learning and artificial intelligence; we shall also discuss this with an eye to the future of precision medicine where metabolomics can be delivered to the masses.
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Affiliation(s)
| | | | - Royston Goodacre
- Manchester Institute of Biotechnology and School of Chemistry, University of Manchester, 131 Princess Street, Manchester M1 7DN, UK
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Wu Q, Lai XL, Zhao HX, Zhu ZY, Hong ZY, Guo ZY, Chai YF. A metabolomics approach for predicting the response to intravenous iron therapy in peritoneal dialysis patients with anemia. RSC Adv 2017. [DOI: 10.1039/c6ra24152b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Anemia is an almost universal complication of chronic kidney disease (CKD), and nearly all patients with end-stage renal disease (ESRD) and approximately 70% of those with earlier stages of CKD receive treatment for anemia.
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Affiliation(s)
- Qiong Wu
- School of Pharmacy
- Second Military Medical University
- Shanghai
- China 200433
| | - Xue-li Lai
- Department of Nephrology
- Changhai Hospital
- Second Military Medical University
- Shanghai
- China 200433
| | - Hong-xia Zhao
- Analysis and Measurement Center
- School of Pharmacy
- Second Military Medical University
- Shanghai 200433
- China
| | - Zhen-yu Zhu
- Analysis and Measurement Center
- School of Pharmacy
- Second Military Medical University
- Shanghai 200433
- China
| | - Zhan-ying Hong
- School of Pharmacy
- Second Military Medical University
- Shanghai
- China 200433
| | - Zhi-yong Guo
- Department of Nephrology
- Changhai Hospital
- Second Military Medical University
- Shanghai
- China 200433
| | - Yi-feng Chai
- School of Pharmacy
- Second Military Medical University
- Shanghai
- China 200433
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Yang Z, Zhao A, Li Z, Ge H, Li T, Zhang F, Zhan H, Wang J. Metabolomics reveals positive acceleration(+Gz)-induced metabolic perturbations and the protective effect of Ginkgo biloba extract in a rat model based on ultra high-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry. J Pharm Biomed Anal 2016; 125:77-84. [PMID: 27010354 DOI: 10.1016/j.jpba.2016.03.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 03/02/2016] [Accepted: 03/04/2016] [Indexed: 01/19/2023]
Abstract
Positive acceleration (+Gz) in the head-to-foot direction generated by modern high-performance fighter jets during flight maneuvers is characterized by high G values and a rapid rate of acceleration, and is often long in duration and a repeated occurrence. The acceleration overload far exceeds the pilot's physiological tolerance limits and causes considerable strain on several organ systems. Despite the importance of monitoring pathophysiological alterations related to +Gz exposure, we lack a complete explanation of the pathophysiology of +Gz exposure. Ginkgo biloba extract (GBE) is a classic traditional Chinese medicine (TCM) that might exert a protective effect against +Gz exposure. However, its mechanism remains unclear. Here, a metabolomics approach based on ultra high-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UHPLC-Q-TOFMS) was used to characterize +Gz-induced metabolic fluctuations in a rat model and to evaluate the protective effect of GBE. Using partial least-squares discriminant analysis for the classification and selection of biomarkers, eighteen serum metabolites related to +Gz exposure were identified, and were found to primarily involve the fatty acid β-oxidation pathway, glycerophospholipid metabolism, phospholipid metabolism, bile acid metabolism, purine metabolism and lysine metabolism. Taking these potential biomarkers as screening indexes, we found that GBE could reverse the pathological process of +Gz exposure by partially regulating the perturbed fatty acid β-oxidation pathway, glycerophospholipid metabolism, purine metabolism and lysine metabolism. This indicates that UHPLC-Q-TOFMS-based metabolomics provides a powerful tool to reveal serum metabolic fluctuations in response to +Gz exposure and to study the mechanism underlying TCM.
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Affiliation(s)
- Zhihui Yang
- Department of Clinical Aerospace Medicine, Fourth Military Medical University, Xi'an, 710032 Shanxi, China; Department of Pharmacology, General Hospital of Air Force, PLA, Beijing 100142, China
| | - Andong Zhao
- Department of Clinical Aerospace Medicine, Fourth Military Medical University, Xi'an, 710032 Shanxi, China; Institute of Aviation Medicine, Air Force, Beijing 100142, China
| | - Zhongdong Li
- Department of Pharmacology, General Hospital of Air Force, PLA, Beijing 100142, China
| | - Hua Ge
- Institute of Aviation Medicine, Air Force, Beijing 100142, China
| | - Tonghua Li
- Department of Clinical Aerospace Medicine, Fourth Military Medical University, Xi'an, 710032 Shanxi, China
| | - Fucheng Zhang
- Department of Pharmacology, General Hospital of Air Force, PLA, Beijing 100142, China
| | - Hao Zhan
- Institute of Aviation Medicine, Air Force, Beijing 100142, China.
| | - Jianchang Wang
- Center of Clinical Aviation Medicine, General Hospital of Air Force, PLA, Beijing 100142, China.
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Sightings, edited by Erik R. Swenson and Peter Bärtsch. High Alt Med Biol 2016. [DOI: 10.1089/ham.2016.29009.stg] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Metabolomic Profiling of Mice Serum during Toxoplasmosis Progression Using Liquid Chromatography-Mass Spectrometry. Sci Rep 2016; 6:19557. [PMID: 26785939 PMCID: PMC4726199 DOI: 10.1038/srep19557] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 12/14/2015] [Indexed: 02/06/2023] Open
Abstract
Better understanding of the molecular changes associated with disease is essential for identifying new routes to improved therapeutics and diagnostic tests. The aim of this study was to investigate the dynamic changes in the metabolic profile of mouse sera during T. gondii infection. We carried out untargeted metabolomic analysis of sera collected from female BALB/c mice experimentally infected with the T. gondii Pru strain (Genotype II). Serum samples were collected at 7, 14 and 21 day post infection (DPI) from infected and control mice and were subjected to liquid chromatography-quadrupole time-of-flight mass spectrometry (LC-Q-TOF-MS)-based global metabolomics analysis. Multivariate statistical analysis identified 79 differentially expressed metabolites in ESI+ mode and 74 in ESI− mode in sera of T. gondii-infected mice compared to the control mice. Further principal component analysis (PCA) and partial least squares-discrimination analysis (PLS-DA) identified 19 dysregulated metabolites (5 in ESI+ mode and 14 in ESI− mode) related to the metabolism of amino acids and energy metabolism. The potential utility of these metabolites as diagnostic biomarkers was validated through receiver operating characteristic (ROC) curve analysis. These findings provide putative metabolite biomarkers for future study and allow for hypothesis generation about the pathophysiology of toxoplasmosis.
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