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Santos FM, Ciordia S, Mesquita J, Cruz C, Sousa JPCE, Passarinha LA, Tomaz CT, Paradela A. Proteomics profiling of vitreous humor reveals complement and coagulation components, adhesion factors, and neurodegeneration markers as discriminatory biomarkers of vitreoretinal eye diseases. Front Immunol 2023; 14:1107295. [PMID: 36875133 PMCID: PMC9978817 DOI: 10.3389/fimmu.2023.1107295] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 02/01/2023] [Indexed: 02/18/2023] Open
Abstract
Introduction Diabetic retinopathy (DR) and age-related macular degeneration (AMD) are leading causes of visual impairment and blindness in people aged 50 years or older in middle-income and industrialized countries. Anti-VEGF therapies have improved the management of neovascular AMD (nAMD) and proliferative DR (PDR), no treatment options exist for the highly prevalent dry form of AMD. Methods To unravel the biological processes underlying these pathologies and to find new potential biomarkers, a label-free quantitative (LFQ) method was applied to analyze the vitreous proteome in PDR (n=4), AMD (n=4) compared to idiopathic epiretinal membranes (ERM) (n=4). Results and discussion Post-hoc tests revealed 96 proteins capable of differentiating among the different groups, whereas 118 proteins were found differentially regulated in PDR compared to ERM and 95 proteins in PDR compared to dry AMD. Pathway analysis indicates that mediators of complement, coagulation cascades and acute phase responses are enriched in PDR vitreous, whilst proteins highly correlated to the extracellular matrix (ECM) organization, platelet degranulation, lysosomal degradation, cell adhesion, and central nervous system development were found underexpressed. According to these results, 35 proteins were selected and monitored by MRM (multiple reaction monitoring) in a larger cohort of patients with ERM (n=21), DR/PDR (n=20), AMD (n=11), and retinal detachment (n=13). Of these, 26 proteins could differentiate between these vitreoretinal diseases. Based on Partial least squares discriminant and multivariate exploratory receiver operating characteristic (ROC) analyses, a panel of 15 discriminatory biomarkers was defined, which includes complement and coagulation components (complement C2 and prothrombin), acute-phase mediators (alpha-1-antichymotrypsin), adhesion molecules (e.g., myocilin, galectin-3-binding protein), ECM components (opticin), and neurodegeneration biomarkers (beta-amyloid, amyloid-like protein 2).
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Affiliation(s)
- Fátima M Santos
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal.,Functional Proteomics Laboratory, Centro Nacional de Biotecnología, CSIC, Madrid, Spain
| | - Sergio Ciordia
- Functional Proteomics Laboratory, Centro Nacional de Biotecnología, CSIC, Madrid, Spain
| | - Joana Mesquita
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - Carla Cruz
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal.,Chemistry Department, Faculty of Sciences, University of Beira Interior, Covilhã, Portugal
| | - João Paulo Castro E Sousa
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal.,Department of Ophthalmology, Centro Hospitalar de Leiria, Leiria, Portugal
| | - Luís A Passarinha
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal.,Associate Laboratory i4HB - Institute for Health and Bioeconomy, Faculdade de Ciências e Tecnologia, Universidade NOVA, Caparica, Portugal.,UCIBIO-Applied Molecular Biosciences Unit, Departamento de Química/Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Caparica, Portugal.,Laboratório de Fármaco-Toxicologia, UBIMedical, Universidade da Beira Interior, Covilhã, Portugal
| | - Cândida T Tomaz
- CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal.,Chemistry Department, Faculty of Sciences, University of Beira Interior, Covilhã, Portugal
| | - Alberto Paradela
- Functional Proteomics Laboratory, Centro Nacional de Biotecnología, CSIC, Madrid, Spain
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Santos FM, Mesquita J, Castro-de-Sousa JP, Ciordia S, Paradela A, Tomaz CT. Vitreous Humor Proteome: Targeting Oxidative Stress, Inflammation, and Neurodegeneration in Vitreoretinal Diseases. Antioxidants (Basel) 2022; 11:antiox11030505. [PMID: 35326156 PMCID: PMC8944522 DOI: 10.3390/antiox11030505] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 03/03/2022] [Accepted: 03/04/2022] [Indexed: 12/12/2022] Open
Abstract
Oxidative stress is defined as an unbalance between pro-oxidants and antioxidants, as evidenced by an increase in reactive oxygen and reactive nitrogen species production over time. It is important in the pathophysiology of retinal disorders such as diabetic retinopathy, age-related macular degeneration, retinal detachment, and proliferative vitreoretinopathy, which are the focus of this article. Although the human organism’s defense mechanisms correct autoxidation caused by endogenous or exogenous factors, this may be insufficient, causing an imbalance in favor of excessive ROS production or a weakening of the endogenous antioxidant system, resulting in molecular and cellular damage. Furthermore, modern lifestyles and environmental factors contribute to increased chemical exposure and stress induction, resulting in oxidative stress. In this review, we discuss the current information about oxidative stress and the vitreous proteome with a special focus on vitreoretinal diseases. Additionally, we explore therapies using antioxidants in an attempt to rescue the body from oxidation, restore balance, and maximize healthy body function, as well as new investigational therapies that have shown significant therapeutic potential in preclinical studies and clinical trial outcomes, along with their goals and strategic approaches to combat oxidative stress.
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Affiliation(s)
- Fátima Milhano Santos
- CICS-UBI—Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6201-001 Covilhã, Portugal; or (J.P.C.-d.-S.)
- Unidad de Proteomica, Centro Nacional de Biotecnología, CSIC, Campus de Cantoblanco, 28049 Madrid, Spain; (S.C.); (A.P.)
- C4-UBI, Cloud Computing Competence Centre, University of Beira Interior, 6200-501 Covilhã, Portugal
- Correspondence: (F.M.S.); (C.T.T.); Tel.: +351-275-319-700 (C.T.T.)
| | - Joana Mesquita
- CICS-UBI—Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6201-001 Covilhã, Portugal; or (J.P.C.-d.-S.)
| | - João Paulo Castro-de-Sousa
- CICS-UBI—Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6201-001 Covilhã, Portugal; or (J.P.C.-d.-S.)
- Department of Ophthalmology, Centro Hospitalar de Leiria, 2410-197 Leiria, Portugal
| | - Sergio Ciordia
- Unidad de Proteomica, Centro Nacional de Biotecnología, CSIC, Campus de Cantoblanco, 28049 Madrid, Spain; (S.C.); (A.P.)
| | - Alberto Paradela
- Unidad de Proteomica, Centro Nacional de Biotecnología, CSIC, Campus de Cantoblanco, 28049 Madrid, Spain; (S.C.); (A.P.)
| | - Cândida Teixeira Tomaz
- CICS-UBI—Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6201-001 Covilhã, Portugal; or (J.P.C.-d.-S.)
- C4-UBI, Cloud Computing Competence Centre, University of Beira Interior, 6200-501 Covilhã, Portugal
- Chemistry Department, Faculty of Sciences, University of Beira Interior, 6201-001 Covilhã, Portugal
- Correspondence: (F.M.S.); (C.T.T.); Tel.: +351-275-319-700 (C.T.T.)
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Shu Y, Gao M, Zhou Y, Liu H, Sun X. DIA Comparative Proteomic Analysis of Retro-oil Fluid and Vitreous Fluid From Retinal Detachment Patients. Front Mol Biosci 2021; 8:763002. [PMID: 34926578 PMCID: PMC8678117 DOI: 10.3389/fmolb.2021.763002] [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: 08/23/2021] [Accepted: 11/03/2021] [Indexed: 01/13/2023] Open
Abstract
Objectives: There have been reports of unexplained visual loss following intra-ocular silicone oil (SiO) tamponade in retinal detachment patients, yet the underlying mechanism is unknown. The aim of this study was to investigate the mechanisms behind retinal toxicity following intra-ocular SiO tamponade in retinal detachment patients. Methods and Results: Vitreous fluid samples were acquired from 27 patients (27 eyes). Twelve eyes for data-independent acquisition (DIA) were divided into four groups: pars plana vitrectomy (PPV) for rhegmatogenous retinal detachment (RD group), SiO removal after successful retinal reattachment (SO group), cataract surgery after successful retinal reattachment with sterilized air tamponade (FA group), and PPV for epiretinal membrane (ERM group). The remaining 15 eyes were used for enzyme-linked immunosorbent assay analysis. DIA was combined with two-dimensional liquid chromatography-tandem mass spectrometry to find expression changes in the proteome of vitreous. Mean number mass spectra, statistically differentially expressed proteins, gene ontology (GO), pathway representations, and protein interactions were analyzed. GO analysis showed that the protein categories of synapse organization, cell adhesion, and regulation of cell migration in the SO group were differentially expressed compared to the control or FA groups (p < 0.05). Through Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis, lysosome and cell adhesion were found to be significantly enriched in the SO group compared to the FA and control groups (p < 0.05). Cadherin 2, transferrin, and lysosome function may partially contribute to silicone oil-related vision loss. Conclusion: Vision loss-inducing novel molecular signatures and pathways that may be associated with SiO toxicity were identified. Transferrin may be a potential visual outcome biomarker for SiO tamponade.
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Affiliation(s)
- Yiyang Shu
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,National Clinical Research Center for Eye Diseases, Shanghai, China.,Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai, China.,Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China.,Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, Shanghai, China
| | - Min Gao
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,National Clinical Research Center for Eye Diseases, Shanghai, China.,Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai, China.,Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China.,Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, Shanghai, China
| | - Yifan Zhou
- Putuo People's Hospital, Tongji University, Shanghai, China
| | - Haiyun Liu
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,National Clinical Research Center for Eye Diseases, Shanghai, China.,Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai, China.,Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China.,Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, Shanghai, China
| | - Xiaodong Sun
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,National Clinical Research Center for Eye Diseases, Shanghai, China.,Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai, China.,Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China.,Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, Shanghai, China
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Weber SR, Zhao Y, Gates C, Ma J, da Veiga Leprevost F, Basrur V, Nesvizhskii AI, Gardner TW, Sundstrom JM. Proteomic Analyses of Vitreous in Proliferative Diabetic Retinopathy: Prior Studies and Future Outlook. J Clin Med 2021; 10:jcm10112309. [PMID: 34070658 PMCID: PMC8199452 DOI: 10.3390/jcm10112309] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 05/20/2021] [Accepted: 05/22/2021] [Indexed: 11/16/2022] Open
Abstract
Vitreous fluid is becoming an increasingly popular medium for the study of retinal disease. Numerous studies have demonstrated that proteomic analysis of the vitreous from patients with proliferative diabetic retinopathy yields valuable molecular information regarding known and novel proteins and pathways involved in this disease. However, there is no standardized methodology for vitreous proteomic studies. Here, we share a suggested protocol for such studies and outline the various experimental and analytic methods that are currently available. We also review prior mass spectrometry-based proteomic studies of the vitreous from patients with proliferative diabetic retinopathy, discuss common pitfalls of these studies, and propose next steps for moving the field forward.
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Affiliation(s)
- Sarah R. Weber
- Department of Ophthalmology, Penn State College of Medicine, 500 University Drive, Hershey, PA 17033, USA; (S.R.W.); (Y.Z.)
- Kellogg Eye Center, University of Michigan Medical School, 1000 Wall Street, Ann Arbor, MI 48105, USA;
| | - Yuanjun Zhao
- Department of Ophthalmology, Penn State College of Medicine, 500 University Drive, Hershey, PA 17033, USA; (S.R.W.); (Y.Z.)
| | - Christopher Gates
- Bioinformatics Core, Biomedical Research Core Facilities, University of Michigan Medical School, 2800 Plymouth Road, Ann Arbor, MI 48109, USA;
| | - Jingqun Ma
- Department of Pathology, St. Jude Children’s Research Hospital, 262 Danny Thomas Place, Memphis, TN 38105, USA;
| | - Felipe da Veiga Leprevost
- Department of Pathology, University of Michigan Medical School, 1301 Catherine Street, Ann Arbor, MI 48109, USA; (F.d.V.L.); (V.B.); (A.I.N.)
| | - Venkatesha Basrur
- Department of Pathology, University of Michigan Medical School, 1301 Catherine Street, Ann Arbor, MI 48109, USA; (F.d.V.L.); (V.B.); (A.I.N.)
| | - Alexey I. Nesvizhskii
- Department of Pathology, University of Michigan Medical School, 1301 Catherine Street, Ann Arbor, MI 48109, USA; (F.d.V.L.); (V.B.); (A.I.N.)
- Department of Computational Medicine and Bioinformatics, University of Michigan, 100 Washtenaw Ave, Ann Arbor, MI 48109, USA
| | - Thomas W. Gardner
- Kellogg Eye Center, University of Michigan Medical School, 1000 Wall Street, Ann Arbor, MI 48105, USA;
| | - Jeffrey M. Sundstrom
- Department of Ophthalmology, Penn State College of Medicine, 500 University Drive, Hershey, PA 17033, USA; (S.R.W.); (Y.Z.)
- Kellogg Eye Center, University of Michigan Medical School, 1000 Wall Street, Ann Arbor, MI 48105, USA;
- Correspondence: ; Tel.: +1-717-531-6774
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Refinement of two-dimensional electrophoresis for vitreous proteome profiling using an artificial neural network. Anal Bioanal Chem 2019; 411:5115-5126. [DOI: 10.1007/s00216-019-01887-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 04/18/2019] [Accepted: 04/30/2019] [Indexed: 01/07/2023]
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Chen Z, Xia H, Shen H, Xu X, Arbab AAI, Li M, Zhang H, Mao Y, Yang Z. Pathological Features of Staphylococcus aureus Induced Mastitis in Dairy Cows and Isobaric-Tags-for-Relative-and-Absolute-Quantitation Proteomic Analyses. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:3880-3890. [PMID: 29595974 DOI: 10.1021/acs.jafc.7b05461] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In part as a result of the production of an enterotoxin, Staphylococcus aureus is a highly infectious pathogen and is a considerable threat to food hygiene and safety. Clinical mastitis models were established by S. aureus nipple-tube perfusion. The influence of mastitis on the mammary-gland-tissue proteomic profile was investigated using isobaric tags for relative and absolute quantitation. In this study, healthy and mastitic tissues from different mammary-gland areas of the same dairy cows were screened, and differentially expressed proteins were identified. Bioinformatic analysis identified proteins related to the inflammation and immunization of dairy cows. Histology, immunoblotting, and immunohistochemical-staining analyses were used to determine the expression of PGLYRP1 and PTX3 proteins in the acquired mammary-gland-tissue samples. PGLYRP1 and PTX3 in mastitic mammary glands may be associated with tissue damage and immune responses to late stages of infection. This further contributes to the understanding of the molecular theory of the treatment of mastitis caused by S. aureus.
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Affiliation(s)
- Zhi Chen
- College of Animal Science and Technology , Yangzhou University , Yangzhou 225009 , PR China
- Joint International Research Laboratory of Agriculture & Agri-Product Safety, Ministry of Education , Yangzhou University , Yangzhou 225009 , PR China
| | - Hailei Xia
- College of Animal Science and Technology , Yangzhou University , Yangzhou 225009 , PR China
- Joint International Research Laboratory of Agriculture & Agri-Product Safety, Ministry of Education , Yangzhou University , Yangzhou 225009 , PR China
| | - Hongliang Shen
- Animal Health Inspection , Suzhou Industrial Park , Suzhou 215021 , PR China
| | - Xin Xu
- College of Animal Science and Technology , Yangzhou University , Yangzhou 225009 , PR China
- Joint International Research Laboratory of Agriculture & Agri-Product Safety, Ministry of Education , Yangzhou University , Yangzhou 225009 , PR China
| | - Abdelaziz Adam Idriss Arbab
- College of Animal Science and Technology , Yangzhou University , Yangzhou 225009 , PR China
- Joint International Research Laboratory of Agriculture & Agri-Product Safety, Ministry of Education , Yangzhou University , Yangzhou 225009 , PR China
| | - Mingxun Li
- College of Animal Science and Technology , Yangzhou University , Yangzhou 225009 , PR China
- Joint International Research Laboratory of Agriculture & Agri-Product Safety, Ministry of Education , Yangzhou University , Yangzhou 225009 , PR China
| | - Huimin Zhang
- College of Animal Science and Technology , Yangzhou University , Yangzhou 225009 , PR China
- Joint International Research Laboratory of Agriculture & Agri-Product Safety, Ministry of Education , Yangzhou University , Yangzhou 225009 , PR China
| | - Yongjiang Mao
- College of Animal Science and Technology , Yangzhou University , Yangzhou 225009 , PR China
- Joint International Research Laboratory of Agriculture & Agri-Product Safety, Ministry of Education , Yangzhou University , Yangzhou 225009 , PR China
| | - Zhangping Yang
- College of Animal Science and Technology , Yangzhou University , Yangzhou 225009 , PR China
- Joint International Research Laboratory of Agriculture & Agri-Product Safety, Ministry of Education , Yangzhou University , Yangzhou 225009 , PR China
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Santos FM, Gaspar LM, Ciordia S, Rocha AS, Castro E Sousa JP, Paradela A, Passarinha LA, Tomaz CT. iTRAQ Quantitative Proteomic Analysis of Vitreous from Patients with Retinal Detachment. Int J Mol Sci 2018; 19:ijms19041157. [PMID: 29641463 PMCID: PMC5979392 DOI: 10.3390/ijms19041157] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 04/07/2018] [Accepted: 04/08/2018] [Indexed: 12/15/2022] Open
Abstract
Rhegmatogenous retinal detachment (RRD) is a potentially blinding condition characterized by a physical separation between neurosensory retina and retinal pigment epithelium. Quantitative proteomics can help to understand the changes that occur at the cellular level during RRD, providing additional information about the molecular mechanisms underlying its pathogenesis. In the present study, iTRAQ labeling was combined with two-dimensional LC-ESI-MS/MS to find expression changes in the proteome of vitreous from patients with RRD when compared to control samples. A total of 150 proteins were found differentially expressed in the vitreous of patients with RRD, including 96 overexpressed and 54 underexpressed. Several overexpressed proteins, several such as glycolytic enzymes (fructose-bisphosphate aldolase A, gamma-enolase, and phosphoglycerate kinase 1), glucose transporters (GLUT-1), growth factors (metalloproteinase inhibitor 1), and serine protease inhibitors (plasminogen activator inhibitor 1) are regulated by HIF-1, which suggests that HIF-1 signaling pathway can be triggered in response to RRD. Also, the accumulation of photoreceptor proteins, including phosducin, rhodopsin, and s-arrestin, and vimentin in vitreous may indicate that photoreceptor degeneration occurs in RRD. Also, the accumulation of photoreceptor proteins, including phosducin, rhodopsin, and s-arrestin, and vimentin in vitreous may indicate that photoreceptor degeneration occurs in RRD. Nevertheless, the differentially expressed proteins found in this study suggest that different mechanisms are activated after RRD to promote the survival of retinal cells through complex cellular responses.
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Affiliation(s)
- Fátima Milhano Santos
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, 6201-506 Covilhã, Portugal.
- Chemistry Department, Faculty of Sciences, University of Beira Interior, 6201-001 Covilhã, Portugal.
- Laboratory of Pharmacology and Toxicology-UBIMedical, University of Beira Interior, 6200-284 Covilhã, Portugal.
| | - Leonor Mesquita Gaspar
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, 6201-506 Covilhã, Portugal.
- Chemistry Department, Faculty of Sciences, University of Beira Interior, 6201-001 Covilhã, Portugal.
| | - Sergio Ciordia
- Unidad de Proteomica, Centro Nacional de Biotecnología, CSIC, Calle Darwin 3, Campus de Cantoblanco, 28049 Madrid, Spain.
| | - Ana Sílvia Rocha
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, 6201-506 Covilhã, Portugal.
- Chemistry Department, Faculty of Sciences, University of Beira Interior, 6201-001 Covilhã, Portugal.
| | - João Paulo Castro E Sousa
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, 6201-506 Covilhã, Portugal.
- Hospital Center Leiria-Pombal, 3100-462 Pombal, Portugal.
| | - Alberto Paradela
- Unidad de Proteomica, Centro Nacional de Biotecnología, CSIC, Calle Darwin 3, Campus de Cantoblanco, 28049 Madrid, Spain.
| | - Luís António Passarinha
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, 6201-506 Covilhã, Portugal.
- Laboratory of Pharmacology and Toxicology-UBIMedical, University of Beira Interior, 6200-284 Covilhã, Portugal.
| | - Cândida Teixeira Tomaz
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, 6201-506 Covilhã, Portugal.
- Chemistry Department, Faculty of Sciences, University of Beira Interior, 6201-001 Covilhã, Portugal.
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