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Muñoz-Arnanz J, Cortés-Avizanda A, Donázar-Aramendía I, Arrondo E, Ceballos O, Colomer-Vidal P, Jiménez B, Donázar JA. Levels of persistent organic pollutants (POPs) and the role of anthropic subsidies in the diet of avian scavengers tracked by stable isotopes. Environ Pollut 2024; 343:123188. [PMID: 38123115 DOI: 10.1016/j.envpol.2023.123188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 12/13/2023] [Accepted: 12/16/2023] [Indexed: 12/23/2023]
Abstract
Persistent Organic Pollutants (POPs) have been identified as a significant factor driving declines in wildlife populations. These contaminants exhibit a dual tendency to biomagnify up the food chains and persist within tissues, rendering long-lived vertebrates, such as raptors, highly vulnerable to their adverse effects. We assessed the concentrations of polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCPs) in fledglings of two vulture species, the Egyptian vulture (Neophron percnopterus) and the griffon vulture (Gyps fulvus), coexisting in northern Spain. Vultures, currently facing a severe threat with a population decline exceeding 90%, represent one of the most critically endangered avian groups in the Old World. Despite this critical situation, there remains a scarcity of research examining the intricate relationship between contaminant levels and individual foraging behaviors. In parallel, we analyzed stable isotope levels (δ15N and δ13C) in fledgling's feathers and prey hair to determine the association between individual dietary and contaminant burdens. Our findings revealed higher levels of PCBs in Egyptian vultures, while pesticide concentrations remained very similar between focal species. Furthermore, higher individual values of δ13C, indicating a diet based on intensive farming carcasses and landfills, were associated with higher levels of PCBs. While the levels of POPs found do not raise immediate alarm, the presence of individuals with unusually high values reveals the existence of accessible contamination sources in the environment for avian scavengers. The increasing reliance of these birds on intensive livestock farming and landfills, due to the decline of extensive livestock farming, necessitates long-term monitoring of potential contaminant effects on their populations.
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Affiliation(s)
- J Muñoz-Arnanz
- Department of Instrumental Analysis and Environmental Chemistry, Institute of Organic Chemistry (IQOG-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain.
| | - A Cortés-Avizanda
- Department of Plant Biology and Ecology, Faculty of Biology, University of Seville, Av. Reina Mercedes 6, 41012, Seville, Spain; Department of Conservation Biology, Estación Biológica de Doñana, CSIC, C/. Americo Vespucio 26, 41092, Seville, Spain
| | - I Donázar-Aramendía
- Laboratorio de Biología Marina, Seville Aquarium R + D + I Biological Research Area, Department of Zoology, Faculty of Biology, University of Sevilla, 41012, Seville, Spain
| | - E Arrondo
- Department of Conservation Biology, Estación Biológica de Doñana, CSIC, C/. Americo Vespucio 26, 41092, Seville, Spain; Centro de Investigación e Innovación Agroalimentaria y Agroambiental (CIAGRO-UMH), Miguel Hernández University, Elche, Spain; Department of Zoology, University of Granada, Spain
| | - O Ceballos
- UGARRA, Avda. Carlos III 1, 31002, Pamplona, Navarre, Spain
| | - P Colomer-Vidal
- Department of Instrumental Analysis and Environmental Chemistry, Institute of Organic Chemistry (IQOG-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain
| | - B Jiménez
- Department of Instrumental Analysis and Environmental Chemistry, Institute of Organic Chemistry (IQOG-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain
| | - J A Donázar
- Department of Conservation Biology, Estación Biológica de Doñana, CSIC, C/. Americo Vespucio 26, 41092, Seville, Spain
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Aparicio I, Iranzo P, Reyes R, Bote H, Saigi M, Bringas M, Bosch-Barrera J, Corral J, Aparisi F, Ruffinelli JC, Jiménez B, Lage Y, López-Castro R, Majem M, Vázquez S, Artal Á, Rodríguez-Pérez Á, Lázaro-Quintela M, Torres JMS, Reguart N, Cucurull M, Gil-Bazo I, Camps C, Nadal E, Del Barrio A, Garrido P, Dómine M, Álvarez R, Muñoz AJ, Calles A. Brief report: High incidence of peridiagnosis thromboembolic events in patients with BRAF-mutant lung cancer. Thromb Res 2023; 232:133-137. [PMID: 37976733 DOI: 10.1016/j.thromres.2023.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 10/31/2023] [Accepted: 11/06/2023] [Indexed: 11/19/2023]
Abstract
INTRODUCTION We aimed to determine if advanced BRAF-mutant NSCLC has a higher thromboembolic events (TEE) rate than the expected. METHODS Between 2008 and 2021, 182 patients with BRAF-mutant advanced NSCLC (BRAF V600E, n = 70; BRAF non-V600E, n = 112) were retrospectively identified from 18 centers in Spain. Patients received chemotherapy (n = 147), immunotherapy (n = 69), targeted therapy (n = 42), and immunotherapy + chemotherapy (n = 26). RESULTS Incidence rate of TEE was 26.4 % (95%CI: 19.9 %-32.9 %). A total of 72 TEE were documented among 48 patients, as 18 patients (37.5 %) developed more than one event. Median time to TEE onset was 2 months, 69 % of TEE occurred in the peridiagnostic period (+/- 90 days from cancer diagnosis), and in 16 pts. (33 %) TEE was the form of lung cancer presentation. Although most TEE were only venous (82 %; PE, n = 33; DVT, n = 16), arterial events were reported in 31 % and occurred earlier, or TEE presented in atypical locations (13.9 %). TEE were related to high hospitalization rate (59 %), recurrence (23 %), and mortality (10.4 %) despite appropriate anticoagulant/antiaggregant treatment. Median OS in patients without-TEE was 19.4 months (95%CI: 4.6-34.1), and significantly shorter in patients with arterial-TEE vs venous-TEE vs both of them: 9.9 months (95%CI: 0-23.5) vs 41.7 months (95%CI: 11.3-72.2 m) vs 2.7 months (95%CI: 2.1-3.3), p = 0.001. Neither clinical or molecular features (BRAF V600E/non-V600E), nor cancer treatment was associated to TEE occurrence. Khorana score underperformed to predict thrombosis at cancer diagnosis, as only 19.2 % of patients were classified as high-risk. CONCLUSIONS Thrombotic events represent a new clinical feature of BRAF-mutant lung cancer. Patients with almost a 30 % incidence of TEE should be offered systematic anticoagulation.
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Affiliation(s)
- Inmaculada Aparicio
- Medical Oncology Department, Hospital General Universitario Gregorio Marañón, Universidad Complutense, Madrid, Spain; Facultad de Medicina, Universidad Francisco de Vitoria, Pozuelo de Alarcón, Madrid, Spain
| | - Patricia Iranzo
- Oncology Department, Vall d'Hebron University Hospital, Vall d'Hebron Institute of Oncology, Barcelona, Spain
| | - Roxana Reyes
- Medical Oncology Department, Thoracic Oncology Unit, Hospital Clinic, IDIBAPS, Barcelona, Spain
| | - Helena Bote
- Department of Medical Oncology, Hospital Universitario 12 de Octubre, Madrid, Spain;-H12O-CNIO Lung Cancer Clinical Research Unit, Health Research Institute Hospital Universitario 12 de Octubre (i+12), Madrid, Spain
| | - María Saigi
- Medical Oncology Department, Hospital Germans Trías i Pujol, Institut Català d'Oncologia-ICO, Badalona, Barcelona, Spain
| | - Marianela Bringas
- Medical Oncology Department, Hospital General Universitario Gregorio Marañón, Universidad Complutense, Madrid, Spain
| | - Joaquim Bosch-Barrera
- Medical Oncology, Catalan Institute of Oncology, Hospital Universitari Dr. Josep Trueta, 17007 Girona, Spain. Precision Oncology Group (OncoGIR-Pro), Institut d'Investigació Biomèdica de Girona (IDIBGI), 17190, Salt, Spain
| | - Jesús Corral
- Clínica Universidad de Navarra, Department of Oncology, Pamplona, Spain
| | - Francisco Aparisi
- Medical Oncology Department, Hospital General Universitario de Valencia, Department of Medicine, Universitat de València, TRIAL Mixed Unit, Centro Investigación Príncipe Felipe-Fundación Investigación Hospital General Universitario de Valencia. CIBERONC, Valencia, Spain
| | - Jose C Ruffinelli
- Medical Oncology Department, Centre Sanitari i Universitari de Bellvitge, Institut Català d'Oncologia (-ICO), L'Hospitalet de Llobregat, Barcelona, Spain
| | | | - Yolanda Lage
- Medical Oncology Department; Ramón y Cajal University Hospital, Madrid, Spain
| | | | - Margarita Majem
- Department of Medical Oncology; Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Sergio Vázquez
- Medical Oncology, Hospital Universitario Lucus Augusti, Lugo, Spain
| | - Ángel Artal
- Medical Oncology Service, Hospital Universitario Miguel Servet, Zaragoza, Spain
| | - Ángel Rodríguez-Pérez
- Medical Oncology Department, Hospital Universitario Fundación Jiménez Díaz, Madrid, Spain
| | | | | | - Noemí Reguart
- Medical Oncology Department, Thoracic Oncology Unit, Hospital Clinic, IDIBAPS, Barcelona, Spain
| | - Marc Cucurull
- Medical Oncology Department, Hospital Germans Trías i Pujol, Institut Català d'Oncologia-ICO, Badalona, Barcelona, Spain
| | - Ignacio Gil-Bazo
- Clínica Universidad de Navarra, Department of Oncology, Pamplona, Spain; Instituto Valenciano de Oncología, Department of Oncology, Valencia, Spain
| | - Carlos Camps
- Medical Oncology Department, Hospital General Universitario de Valencia, Department of Medicine, Universitat de València, TRIAL Mixed Unit, Centro Investigación Príncipe Felipe-Fundación Investigación Hospital General Universitario de Valencia. CIBERONC, Valencia, Spain
| | - Ernest Nadal
- Medical Oncology Department, Centre Sanitari i Universitari de Bellvitge, Institut Català d'Oncologia (-ICO), L'Hospitalet de Llobregat, Barcelona, Spain
| | | | - Pilar Garrido
- Medical Oncology Department; Ramón y Cajal University Hospital, Madrid, Spain
| | - Manuel Dómine
- Medical Oncology Department, Hospital Universitario Fundación Jiménez Díaz, Madrid, Spain
| | - Rosa Álvarez
- Medical Oncology Department, Hospital General Universitario Gregorio Marañón, Universidad Complutense, Madrid, Spain
| | - Andrés J Muñoz
- Medical Oncology Department, Hospital General Universitario Gregorio Marañón, Universidad Complutense, Madrid, Spain
| | - Antonio Calles
- Medical Oncology Department, Hospital General Universitario Gregorio Marañón, Universidad Complutense, Madrid, Spain.
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Harvey N, Takis PG, Lindon JC, Li JV, Jiménez B. Optimization of Diffusion-Ordered NMR Spectroscopy Experiments for High-Throughput Automation in Human Metabolic Phenotyping. Anal Chem 2023; 95:3147-3152. [PMID: 36720172 PMCID: PMC9933041 DOI: 10.1021/acs.analchem.2c04066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 01/19/2023] [Indexed: 02/02/2023]
Abstract
The diffusion-ordered nuclear magnetic resonance spectroscopy (DOSY) experiment allows the calculation of diffusion coefficient values of metabolites in complex mixtures. However, this experiment has not yet been broadly used for metabolic profiling due to lack of a standardized protocol. Here we propose a pipeline for the DOSY experimental setup and data processing in metabolic phenotyping studies. Due to the complexity of biological samples, three experiments (a standard DOSY, a relaxation-edited DOSY, and a diffusion-edited DOSY) have been optimized to provide DOSY metabolic profiles with peak-picked diffusion coefficients for over 90% of signals visible in the one-dimensional 1H general biofluid profile in as little as 3 min 36 s. The developed parameter sets and tools are straightforward to implement and can facilitate the use of DOSY for metabolic profiling of human blood plasma and urine samples.
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Affiliation(s)
- Nikita Harvey
- Section
of Bioanalytical Chemistry, Division of Systems Medicine, Department
of Metabolism, Digestion and Reproduction, Imperial College London, Burlington Danes Building, Hammersmith Hospital Campus, London W12 0NN, U.K.
- National
Phenome Centre, Department of Metabolism, Digestion and Reproduction, Imperial College London, , IRDB Building, Hammersmith
Campus, London W12 0NN, U.K.
| | - Panteleimon G Takis
- Section
of Bioanalytical Chemistry, Division of Systems Medicine, Department
of Metabolism, Digestion and Reproduction, Imperial College London, Burlington Danes Building, Hammersmith Hospital Campus, London W12 0NN, U.K.
- National
Phenome Centre, Department of Metabolism, Digestion and Reproduction, Imperial College London, , IRDB Building, Hammersmith
Campus, London W12 0NN, U.K.
| | - John C Lindon
- Section
of Biomolecular Medicine, Division of Systems Medicine, Department
of Metabolism, Digestion and Reproduction, Imperial College London, Burlington Danes Building, Hammersmith Hospital Campus, London W12 0NN, U.K.
| | - Jia V Li
- Section
of Nutrition, Division of Digestive Diseases, Department of Metabolism,
Digestion and Reproduction, Imperial College
London, Commonwealth Building, Hammersmith Hospital Campus, London W12 0NN, U.K.
| | - Beatriz Jiménez
- Section
of Bioanalytical Chemistry, Division of Systems Medicine, Department
of Metabolism, Digestion and Reproduction, Imperial College London, Burlington Danes Building, Hammersmith Hospital Campus, London W12 0NN, U.K.
- National
Phenome Centre, Department of Metabolism, Digestion and Reproduction, Imperial College London, , IRDB Building, Hammersmith
Campus, London W12 0NN, U.K.
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Ortiz-Romero PL, Jiménez LM, Muniesa C, Estrach T, Servitje O, de Misa RF, Gallardo F, Martín OS, Riveiro-Falkenbach E, Díaz NG, Vega R, Lora D, Postigo C, Jiménez B, Sánchez-Beato M, Vaqué JP, Peralto JLR, de la Cámara AG, De la Cruz J, Pinilla MAP. Final report of PIMTO-MF clinical trial: multicenter, phase II trial for treatment of early MF with topical pimecrolimus. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)00641-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Hussain H, Vutipongsatorn K, Jiménez B, Antcliffe DB. Patient Stratification in Sepsis: Using Metabolomics to Detect Clinical Phenotypes, Sub-Phenotypes and Therapeutic Response. Metabolites 2022; 12:metabo12050376. [PMID: 35629881 PMCID: PMC9145582 DOI: 10.3390/metabo12050376] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 04/01/2022] [Accepted: 04/12/2022] [Indexed: 11/16/2022] Open
Abstract
Infections are common and need minimal treatment; however, occasionally, due to inappropriate immune response, they can develop into a life-threatening condition known as sepsis. Sepsis is a global concern with high morbidity and mortality. There has been little advancement in the treatment of sepsis, outside of antibiotics and supportive measures. Some of the difficulty in identifying novel therapies is the heterogeneity of the condition. Metabolic phenotyping has great potential for gaining understanding of this heterogeneity and how the metabolic fingerprints of patients with sepsis differ based on survival, organ dysfunction, disease severity, type of infection, treatment or causative organism. Moreover, metabolomics offers potential for patient stratification as metabolic profiles obtained from analytical platforms can reflect human individuality and phenotypic variation. This article reviews the most relevant metabolomic studies in sepsis and aims to provide an overview of the metabolic derangements in sepsis and how metabolic phenotyping has been used to identify sub-groups of patients with this condition. Finally, we consider the new avenues that metabolomics could open, exploring novel phenotypes and untangling the heterogeneity of sepsis, by looking at advances made in the field with other -omics technologies.
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Affiliation(s)
- Humma Hussain
- Division of Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London SW7 2AZ, UK; (H.H.); (K.V.)
| | - Kritchai Vutipongsatorn
- Division of Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London SW7 2AZ, UK; (H.H.); (K.V.)
| | - Beatriz Jiménez
- Section of Bioanalytical Chemistry, Division of Systems Medicine, Department of Metabolism, Digestion and Reproduction, Imperial College London, London SW7 2AZ, UK;
- National Phenome Centre, Department of Metabolism, Digestion and Reproduction, Imperial College London, London W12 0NN, UK
| | - David B. Antcliffe
- Division of Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London SW7 2AZ, UK; (H.H.); (K.V.)
- Correspondence:
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6
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Sliz E, Shin J, Ahmad S, Williams DM, Frenzel S, Gauß F, Harris SE, Henning AK, Hernandez MV, Hu YH, Jiménez B, Sargurupremraj M, Sudre C, Wang R, Wittfeld K, Yang Q, Wardlaw JM, Völzke H, Vernooij MW, Schott JM, Richards M, Proitsi P, Nauck M, Lewis MR, Launer L, Hosten N, Grabe HJ, Ghanbari M, Deary IJ, Cox SR, Chaturvedi N, Barnes J, Rotter JI, Debette S, Ikram MA, Fornage M, Paus T, Seshadri S, Pausova Z. Circulating Metabolome and White Matter Hyperintensities in Women and Men. Circulation 2022; 145:1040-1052. [PMID: 35050683 PMCID: PMC9645366 DOI: 10.1161/circulationaha.121.056892] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 12/02/2021] [Indexed: 11/16/2022]
Abstract
BACKGROUND White matter hyperintensities (WMH), identified on T2-weighted magnetic resonance images of the human brain as areas of enhanced brightness, are a major risk factor of stroke, dementia, and death. There are no large-scale studies testing associations between WMH and circulating metabolites. METHODS We studied up to 9290 individuals (50.7% female, average age 61 years) from 15 populations of 8 community-based cohorts. WMH volume was quantified from T2-weighted or fluid-attenuated inversion recovery images or as hypointensities on T1-weighted images. Circulating metabolomic measures were assessed with mass spectrometry and nuclear magnetic resonance spectroscopy. Associations between WMH and metabolomic measures were tested by fitting linear regression models in the pooled sample and in sex-stratified and statin treatment-stratified subsamples. Our basic models were adjusted for age, sex, age×sex, and technical covariates, and our fully adjusted models were also adjusted for statin treatment, hypertension, type 2 diabetes, smoking, body mass index, and estimated glomerular filtration rate. Population-specific results were meta-analyzed using the fixed-effect inverse variance-weighted method. Associations with false discovery rate (FDR)-adjusted P values (PFDR)<0.05 were considered significant. RESULTS In the meta-analysis of results from the basic models, we identified 30 metabolomic measures associated with WMH (PFDR<0.05), 7 of which remained significant in the fully adjusted models. The most significant association was with higher level of hydroxyphenylpyruvate in men (PFDR.full.adj=1.40×10-7) and in both the pooled sample (PFDR.full.adj=1.66×10-4) and statin-untreated (PFDR.full.adj=1.65×10-6) subsample. In men, hydroxyphenylpyruvate explained 3% to 14% of variance in WMH. In men and the pooled sample, WMH were also associated with lower levels of lysophosphatidylcholines and hydroxysphingomyelins and a larger diameter of low-density lipoprotein particles, likely arising from higher triglyceride to total lipids and lower cholesteryl ester to total lipids ratios within these particles. In women, the only significant association was with higher level of glucuronate (PFDR=0.047). CONCLUSIONS Circulating metabolomic measures, including multiple lipid measures (eg, lysophosphatidylcholines, hydroxysphingomyelins, low-density lipoprotein size and composition) and nonlipid metabolites (eg, hydroxyphenylpyruvate, glucuronate), associate with WMH in a general population of middle-aged and older adults. Some metabolomic measures show marked sex specificities and explain a sizable proportion of WMH variance.
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Affiliation(s)
- Eeva Sliz
- The Hospital for Sick Children, and Departments of Physiology and Nutritional Sciences, University of Toronto, Toronto, ON, Canada
| | - Jean Shin
- The Hospital for Sick Children, and Departments of Physiology and Nutritional Sciences, University of Toronto, Toronto, ON, Canada
| | - Shahzad Ahmad
- Department of Epidemiology, Erasmus Medical Centre, Rotterdam, The Netherlands
- Division of Systems Biomedicine and Pharmacology, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Dylan M. Williams
- MRC Unit for Lifelong Health and Ageing at UCL, University College London, London, UK
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Stefan Frenzel
- Department of Psychiatry and Psychotherapy, University Medicine Greifswald, Greifswald, Germany
| | - Friederike Gauß
- Institute of Clinical Chemistry and Laboratory Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Sarah E. Harris
- Lothian Birth Cohorts group, Department of Psychology, University of Edinburgh, Edinburgh, UK
| | - Ann-Kristin Henning
- Institute of Clinical Chemistry and Laboratory Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Maria Valdes Hernandez
- Centre for Clinical Brain Sciences, UK Dementia Research Institute at the University of Edinburgh, Edinburgh, UK
| | - Yi-Han Hu
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, Baltimore, MD, USA
| | - Beatriz Jiménez
- National Phenome Centre, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK
| | - Muralidharan Sargurupremraj
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, team VINTAGE, UMR 1219, 33000 Bordeaux, France
| | - Carole Sudre
- MRC Unit for Lifelong Health and Ageing at UCL, University College London, London, UK
- Centre for Medical Image Computing, Department of Computer Science, University College London
- School of Biomedical Engineering & Imaging Sciences, King’s College London
| | - Ruiqi Wang
- Department of Biostatistics, Boston University, Boston, MA, USA
| | - Katharina Wittfeld
- Department of Psychiatry and Psychotherapy, University Medicine Greifswald, Greifswald, Germany
- Germany Center for Neurodegenerative Diseases (DZNE), partner site Rostock/Greifswald, Greifswald, Germany
| | - Qiong Yang
- Department of Biostatistics, Boston University, Boston, MA, USA
| | - Joanna M. Wardlaw
- Centre for Clinical Brain Sciences, UK Dementia Research Institute at the University of Edinburgh, Edinburgh, UK
| | - Henry Völzke
- Institute for Community Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Meike W. Vernooij
- Department of Epidemiology, Erasmus Medical Centre, Rotterdam, The Netherlands
- Department of Radiology and Nuclear Medicine, and Department of Neurology, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Jonathan M Schott
- Dementia Research Centre, UCL Queen Square Institute of Neurology, University College London, London, UK
| | - Marcus Richards
- MRC Unit for Lifelong Health and Ageing at UCL, University College London, London, UK
| | - Petroula Proitsi
- King’s College London, Institute of Psychiatry, Psychology and Neuroscience, London, UK
| | - Matthias Nauck
- Institute of Clinical Chemistry and Laboratory Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Matthew R. Lewis
- National Phenome Centre, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK
| | - Lenore Launer
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, Baltimore, MD, USA
| | - Norbert Hosten
- Institute of Diagnostic Radiology and Neuroradiology, University Medicine Greifswald, Greifswald, Germany
| | - Hans J. Grabe
- Department of Psychiatry and Psychotherapy, University Medicine Greifswald, Greifswald, Germany
- Germany Center for Neurodegenerative Diseases (DZNE), partner site Rostock/Greifswald, Greifswald, Germany
| | - Mohsen Ghanbari
- Department of Epidemiology, Erasmus Medical Centre, Rotterdam, The Netherlands
| | - Ian J. Deary
- Lothian Birth Cohorts group, Department of Psychology, University of Edinburgh, Edinburgh, UK
| | - Simon R. Cox
- Lothian Birth Cohorts group, Department of Psychology, University of Edinburgh, Edinburgh, UK
| | - Nishi Chaturvedi
- MRC Unit for Lifelong Health and Ageing at UCL, University College London, London, UK
| | - Josephine Barnes
- Dementia Research Centre, UCL Queen Square Institute of Neurology, University College London, London, United Kingdom
| | - Jerome I. Rotter
- The Institute for Translational Genomics and Population Sciences, Department of Pediatrics, The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA USA
| | - Stephanie Debette
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, team VINTAGE, UMR 1219, 33000 Bordeaux, France
| | - M. Arfan Ikram
- Department of Epidemiology, Erasmus Medical Centre, Rotterdam, The Netherlands
| | - Myriam Fornage
- University of Texas Health Science Center at Houston McGovern Medical School, Houston, TX, USA
| | - Tomas Paus
- Departments of Psychiatry and Neuroscience and Centre Hospitalier Universitaire Sainte-Justine, University of Montreal, Montreal, QC, Canada
- ECOGENE-21, Chicoutimi, QC, Canada
- Departments of Psychology and Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Sudha Seshadri
- The Framingham Heart Study, Framingham, MA, USA
- Department of Neurology, Boston University School of Medicine, Boston, MA, USA
| | - Zdenka Pausova
- The Hospital for Sick Children, and Departments of Physiology and Nutritional Sciences, University of Toronto, Toronto, ON, Canada
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González-Blanco C, Marqués P, Burillo J, Jiménez B, García G, Benito M, Guillén C. Cell immortalization facilitates prelamin A clearance by increasing both cell proliferation and autophagic flux. Aging (Albany NY) 2022; 14:2047-2061. [PMID: 35306483 PMCID: PMC8954962 DOI: 10.18632/aging.203943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 01/25/2022] [Indexed: 12/03/2022]
Abstract
Hutchinson-Gilford Progeria Syndrome is an ultrarare disease which is characterized by an accelerated senescence phenotype with deleterious consequences to people suffering this pathology. The production of an abnormal protein derived from lamin A, called progerin, presents a farnesylated domain, which is not eliminated by the causal mutation of the disease, and accumulates in the interior of the nucleus, provoking a disruption of nuclear membrane, chromatin organization and an altered gene expression. The mutation in these patients occurs in a single nucleotide change, which creates a de novo splicing site, producing a shorter version of the protein. Apart from this mutation, an alteration in the metalloproteinase Zmpste24, involved in the maturation of lamin A, causing a similar alteration than in progeria. However, in this case, patients accumulate a protein, called prelamin A, which generates similar alterations in the nucleus than progerin. The reduction of prelamin A protein levels facilitates the recovery of the phenotype in different mice models of the disease, reducing the aging process. Different strategies have been studied for eliminating this toxic protein. Here, we report that immortalization of primary cells derived from the Zmpste24 KO mice, facilitates prelamin A degradation by different mechanisms, being essential, the enhancing proliferative capacity that the immortalized cells present. Then, these data suggest that using different treatments for increasing proliferative capacity of these cells, potentially could have a beneficial effect, facilitating prelamin A toxicity.
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Affiliation(s)
| | - Patricia Marqués
- Department of Biochemistry, Complutense University, Madrid, Spain
| | - Jesús Burillo
- Department of Biochemistry, Complutense University, Madrid, Spain
- Mechanisms of Insulin Resistance (MOIR2), General Direction of Universities and Investigation (CCMM), Madrid, Spain
| | - Beatriz Jiménez
- Department of Biochemistry, Complutense University, Madrid, Spain
| | - Gema García
- Department of Biochemistry, Complutense University, Madrid, Spain
| | - Manuel Benito
- Department of Biochemistry, Complutense University, Madrid, Spain
- Centro de Investigación Biomédica en Red (CIBER) de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Madrid, Spain
- Mechanisms of Insulin Resistance (MOIR2), General Direction of Universities and Investigation (CCMM), Madrid, Spain
| | - Carlos Guillén
- Department of Biochemistry, Complutense University, Madrid, Spain
- Centro de Investigación Biomédica en Red (CIBER) de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Madrid, Spain
- Mechanisms of Insulin Resistance (MOIR2), General Direction of Universities and Investigation (CCMM), Madrid, Spain
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8
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Albreht A, Hussain H, Jiménez B, Yuen AHY, Whiley L, Witt M, Lewis MR, Chekmeneva E. Structure Elucidation and Mitigation of Endogenous Interferences in LC-MS-Based Metabolic Profiling of Urine. Anal Chem 2022; 94:1760-1768. [PMID: 35026111 DOI: 10.1021/acs.analchem.1c04378] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Liquid chromatography-mass spectrometry (LC-MS) is the main workhorse of metabolomics owing to its high degree of analytical sensitivity and specificity when measuring diverse chemistry in complex biological samples. LC-MS-based metabolic profiling of human urine, a biofluid of primary interest for clinical and biobank studies, is not widely considered to be compromised by the presence of endogenous interferences and is often accomplished using a simple "dilute-and-shoot" approach. Yet, it is our experience that broad obscuring signals are routinely observed in LC-MS metabolic profiles and represent interferences that lack consideration in the relevant metabolomics literature. In this work, we chromatographically isolated the interfering metabolites from human urine and unambiguously identified them via de novo structure elucidation as two separate proline-containing dipeptides: N,N,N-trimethyl-l-alanine-l-proline betaine (l,l-TMAP) and N,N-dimethyl-l-proline-l-proline betaine (l,l-DMPP), the latter reported here for the first time. Offline LC-MS/MS, magnetic resonance mass spectrometry (MRMS), and nuclear magnetic resonance (NMR) spectroscopy were essential components of this workflow for the full chemical and spectroscopic characterization of these metabolites and for establishing the coexistence of cis and trans isomers of both dipeptides in solution. Analysis of these definitive structures highlighted intramolecular ionic interactions as responsible for slow interconversion between these isomeric forms resulting in their unusually broad elution profiles. Proposed mitigation strategies, aimed at increasing the quality of LC-MS-based urine metabolomics data, include modification of column temperature and mobile-phase pH to reduce the chromatographic footprint of these dipeptides, thereby reducing their interfering effect on the underlying metabolic profiles. Alternatively, sample dilution and internal standardization methods may be employed to reduce or account for the observed effects of ionization suppression on the metabolic profile.
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Affiliation(s)
- Alen Albreht
- National Phenome Centre, Department of Metabolism, Digestion and Reproduction, Imperial College London, London W12 0NN, United Kingdom.,Analytical, Environmental & Forensic Sciences, Faculty of Life Sciences & Medicine, King's College London, Franklin-Wilkins Building, London SE1 9NH, United Kingdom.,Laboratory for Food Chemistry, Department of Analytical Chemistry, National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia
| | - Humma Hussain
- National Phenome Centre, Department of Metabolism, Digestion and Reproduction, Imperial College London, London W12 0NN, United Kingdom.,Division of Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London SW7 2AZ, United Kingdom
| | - Beatriz Jiménez
- National Phenome Centre, Department of Metabolism, Digestion and Reproduction, Imperial College London, London W12 0NN, United Kingdom.,Section of Bioanalytical Chemistry, Department of Metabolism, Digestion and Reproduction, Imperial College London, London SW7 2AZ, United Kingdom
| | - Ada H Y Yuen
- National Phenome Centre, Department of Metabolism, Digestion and Reproduction, Imperial College London, London W12 0NN, United Kingdom.,Section of Bioanalytical Chemistry, Department of Metabolism, Digestion and Reproduction, Imperial College London, London SW7 2AZ, United Kingdom
| | - Luke Whiley
- National Phenome Centre, Department of Metabolism, Digestion and Reproduction, Imperial College London, London W12 0NN, United Kingdom
| | - Matthias Witt
- MRMS Solutions, Bruker Daltonics GmbH & Co. KG, MRMS Solutions, 28359 Bremen, Germany
| | - Matthew R Lewis
- National Phenome Centre, Department of Metabolism, Digestion and Reproduction, Imperial College London, London W12 0NN, United Kingdom.,Section of Bioanalytical Chemistry, Department of Metabolism, Digestion and Reproduction, Imperial College London, London SW7 2AZ, United Kingdom
| | - Elena Chekmeneva
- National Phenome Centre, Department of Metabolism, Digestion and Reproduction, Imperial College London, London W12 0NN, United Kingdom.,Section of Bioanalytical Chemistry, Department of Metabolism, Digestion and Reproduction, Imperial College London, London SW7 2AZ, United Kingdom
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9
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Provencio M, Rodríguez-Abreu D, Ortega AL, Serrano G, Aguado C, Franco F, Gutierrez V, López Vivanco G, Guirado M, Benítez G, Estival A, Calvo V, Jiménez B, Arasanz H, Coves J, Majem M, Massutí B, Vázquez S, Juan-Vidal O, Collazo-Lorduy A, Gozálvez CL, Del Barco E, Rosero A, Bosch-Barrerra J, Moreno MA, Mielgo-Rubio X, Villa JC, López-Martin A, Córdoba JF, de Asís Aparisi F, Zafra M, Mosquera J, Pérez Altozano J, Nadal E, Catot S, Balsalobre J, de Portugal T, Martín P, Cuesta de Juan S, Cobo M. Seroprevalence and immunological memory against SARS-CoV-2 in lung cancer patients: the SOLID study. Transl Lung Cancer Res 2022; 11:53-63. [PMID: 35242627 PMCID: PMC8825652 DOI: 10.21037/tlcr-21-504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Accepted: 10/18/2021] [Indexed: 11/18/2022]
Abstract
Background At present, we did not find any articles that studied seroprevalence and its persistence several months later in lung cancer patients in the setting of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Most patients with coronavirus disease 2019 (COVID-19) go on to develop antibodies (Abs) against viral proteins. However, it is not known how long these Abs last nor whether cancer treatments could affect the duration of immune response. Methods This prospective, longitudinal, multicenter serological study in the setting of SARS-CoV-2 infection was carried out in 50 Spanish hospitals. Eligibility criterion was the diagnosis of any lung cancer. The determination of anti-SARS-CoV-2 IgG Abs was performed by qualitative immuno-enzymatic assay using enzyme-linked immunosorbent assay (ELISA) kit from NovaLisa whose Abs target the recombinant antigen N of the nucleocapsid of SARS-CoV-2. The first Ab determination was performed between April 21 and June 3, 2020. The second Ab determination was performed in all previously seropositive patients, between September 10 and November 20, 2020. Study objectives were to prospectively determine seroprevalence in unselected lung cancer patients during the first wave of the pandemic; the persistence of immunity; protection or lack thereof against reinfection; and the influence of treatments on maintenance or loss of immunity. Results Of 1,500 patients, 128 were seropositive, overall prevalence of 8.5% seropositivity [95% confidence interval (CI): 7.2–10.1%]. Seventy-five percent were in active cancer treatment. Forty-seven point seven percent of IgG positive participants had experienced a symptomatic illness suspected of being infected with SARS-CoV-2 (95% CI: 38.8–56.6%). A second determination was performed on average 4.5 months later [interquartile range (IQR), 4.0–5.0 months] and obtained for 104 of the initially seropositive patients (81%), it could not be obtained in 24 patients, the majority due to death caused by disease progression (73%). In the second determination, IgG was not detected in 30.8% of patients. The severity of the infection, the need for hospitalization (P=0.032) and the presence of symptoms at diagnosis (P=0.02) were associated with persistence of immunity in the second determination. No variables or treatments received were associated with Abs loss. Conclusions Immunity against SARS-CoV-2 does not appear to be compromised by treatment and persists beyond 4 months. Neither do mortality rates appear to be particularly high in this unselected population. Trial Registration ClinicalTrials.gov identifier: NCT04407143.
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Affiliation(s)
- Mariano Provencio
- Medical Oncology Department, Hospital Universitario Puerta de Hierro Majadahonda, Madrid, Spain
| | - Delvys Rodríguez-Abreu
- Medical Oncology Department, Hospital Universitario Insular de Gran Canaria, Las Palmas, Spain
| | - Ana L. Ortega
- Medical Oncology Department, Hospital Universitario de Jaén, Jaén, Spain
| | - Gloria Serrano
- Medical Oncology Department, Hospital Universiario Infanta Leonor, Madrid, Spain
| | - Carlos Aguado
- Medical Oncology Department, Hospital Clínico San Carlos, Madrid, Spain
| | - Fernando Franco
- Medical Oncology Department, Hospital Universitario Puerta de Hierro Majadahonda, Madrid, Spain
| | - Vanesa Gutierrez
- Medical Oncology Department, Hospital Universitario Regional de Málaga, Málaga, Spain
| | | | - María Guirado
- Medical Oncology Department, Hospital General Universitario de Elche, Alicante, Spain
| | - Gretel Benítez
- Medical Oncology Department, Hospital Universitario Insular de Gran Canaria, Las Palmas, Spain
| | - Anna Estival
- Catalan Institute of Oncology, Hospital Universitari Germans Trias i Pujol, B-ARGO, IGTP, Badalona, Spain
| | - Virginia Calvo
- Medical Oncology Department, Hospital Universitario Puerta de Hierro Majadahonda, Madrid, Spain
| | - Beatriz Jiménez
- Medical Oncology Department, Hospital Universitario HM Sanchinarro, Madrid, Spain
| | - Hugo Arasanz
- Medical Oncology Department, Complejo Hospitalario Navarra-Navarrabiomeed, Pamplona, Spain
| | - Juan Coves
- Medical Oncology Department, Hospital Universitari Son LLàtzer, Palma de Mallorca, Spain
| | - Margarita Majem
- Medical Oncology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Bartomeu Massutí
- Medical Oncology Department, Hospital General Universitario de Alicante, Alicante, Spain
| | - Sergio Vázquez
- Medical Oncology Department, Hospital Universitario Lucus Augusti, Lugo, Spain
| | - Oscar Juan-Vidal
- Medical Oncology Department, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - Ana Collazo-Lorduy
- Medical Oncology Department, Hospital Universitario Puerta de Hierro Majadahonda, Madrid, Spain
| | - Clara L. Gozálvez
- Medical Oncology Department, Hospital Universitari Sant Joan de Reus, Reus, Spain
| | - Edel Del Barco
- Medical Oncology Department, Hospital Clínico Universitario de Salamanca, Salamanca, Spain
| | - Adriana Rosero
- Medical Oncology Department, Hospital Universitario Infanta Cristina, Madrid, Spain
| | | | - María A. Moreno
- Medical Oncology Department, Hospital Universitario de Puerto Real, Cádiz, Spain
| | - Xabier Mielgo-Rubio
- Medical Oncology Department, Hospital Universitario Fundación Alcorcón, Madrid, Spain
| | - José C. Villa
- Medical Oncology Department, Hospital General Universitario Ciudad Real, Ciudad Real, Spain
| | - Ana López-Martin
- Medical Oncology Department, Hospital Universitario Severo Ochoa, Madrid, Spain
| | - Juan F. Córdoba
- Medical Oncology Department, Hospital Universitario Arnau de Vilanova, Lleida, Spain
| | | | - Marta Zafra
- Medical Oncology Department, Hospital General Universitario Morales Messeguer, Murcia, Spain
| | - Joaquín Mosquera
- Medical Oncology Department, Complejo Hospitalario Universitario A Coruña, A Coruña, Spain
| | | | - Ernest Nadal
- Medical Oncology Department, Institut Català d’Oncologia, Hospitalet de Llobregat, Barcelona, Spain
| | - Silvia Catot
- Medical Oncology Department, Altaia, Xarxa Assistencial Universitaria Manresa, Barcelona, Spain
| | - José Balsalobre
- Medical Oncology Department, Hospital General Universitario Santa Lucia, Cartagena, Murcia, Spain
| | - Teresa de Portugal
- Medical Oncology Department, Complejo Hospitalario de Zamora, Zamora, Spain
| | - Paloma Martín
- Medical Oncology Department, Hospital Clínico Universitario de Valencia, Valencia, Spain
| | | | - Manuel Cobo
- Medical Oncology Department, Hospital Universitario Regional de Málaga, Málaga, Spain
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10
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Barberán M, Campusano C, Salman P, Trejo P, Silva-Figueroa A, Rivera S, Florenzano P, Velasco S, Illanes F, Trincado P, Canessa J, Solar A, Moreno M, Eugenin D, Jiménez B, Arroyo P. [An update on parathyroid carcinoma]. Rev Med Chil 2021; 149:399-408. [PMID: 34479319 DOI: 10.4067/s0034-98872021000300399] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 10/05/2020] [Indexed: 11/17/2022]
Abstract
Parathyroid carcinoma is a rare malignant disease that presents as a sporadic or familial primary hyperparathyroidism (PHP). The latter is associated with some genetic syndromes. It occurs with equal frequency in both sexes, unlike PHP caused by parathyroid adenoma that is more common in women. It should be suspected in cases of severe hypercalcemia, with high parathyroid hormone levels and a palpable cervical mass. Given the difficulty in distinguishing between parathyroid carcinoma and adenoma prior to the surgery, the diagnosis is often made after parathyroidectomy. The only curative treatment is complete surgical resection with oncologic block resection of the primary tumor to ensure free margins. Adjuvant therapies with chemotherapy or radiation therapy do not modify overall or disease-free survival. Recurrences are common and re-operation of resectable recurrent disease is recommended. The palliative treatment of symptomatic hypercalcemia is crucial in persistent or recurrent disease after surgery since morbidity and mortality are more associated with hypercalcemia than with tumor burden.
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Affiliation(s)
| | - Claudia Campusano
- Clínica Universidad de los Andes, Facultad de Medicina, Universidad de los Andes, Chile
| | - Patricio Salman
- Escuela de Medicina, Facultad de Medicina, Universidad de Concepción, Concepción, Chile
| | | | | | - Sandra Rivera
- Departamento de Endocrinología, Clínica Dávila, Santiago, Chile
| | - Pablo Florenzano
- Departamento de Endocrinología, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Soledad Velasco
- Escuela de Medicina, Facultad de Medicina, Universidad de Concepción, Concepción, Chile
| | - Francisca Illanes
- Escuela de Medicina, Facultad de Medicina, Universidad de Concepción, Concepción, Chile
| | | | | | - Antonieta Solar
- Departamento de Anatomía Patológica, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Marcela Moreno
- Clínica Universidad de los Andes, Facultad de Medicina, Universidad de los Andes, Chile
| | | | | | - Patricia Arroyo
- Departamento Radiología, Hospital Clínico Universidad de Chile, Santiago, Chile
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11
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Ortiz LT, Velasco S, Treviño J, Jiménez B, Rebolé A. Changes in the Nutrient Composition of Barley Grain ( Hordeum vulgare L.) and of Morphological Fractions of Sprouts. Scientifica (Cairo) 2021; 2021:9968864. [PMID: 34336362 PMCID: PMC8321752 DOI: 10.1155/2021/9968864] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 07/14/2021] [Indexed: 05/27/2023]
Abstract
The objectives of the current study were (1) to evaluate the effect of sprouting on protein, amino acids, fats, fatty acids, starch, total soluble carbohydrates, and ß-D-glucan content of barley grains and (2) to know the content of these nutrients in the morphological fractions of sprouts: green shoot, residual structure of sprouted grain (RSSG), residual structure of sprouted grain plus unsprouted grain (RSSG plus UG), and root fractions and to determine the proportion of each of these fractions (on fresh and dry basis) in the sprout biomass. Barley grain was sprouted in a commercial germination chamber for a period of 6 days. Raw grain was used as a control. Results showed that crude protein, ether extract, total soluble carbohydrates, and cellulose content increased, whereas starch and ß-D-glucan content decreased in sprouted when compared with the control grain. Amino acid and fatty acid profiles were also affected. Thus, aspartic acid, threonine, alanine, valine, isoleucine, lysine, and tryptophan content increased and only that of glutamic acid decreased after sprouting. Regarding fatty acids, an increase in the relative concentration of C18 : 0 and C18:3n-3 and a decrease in that of C18:1n-9 were detected. Partitioning of sprouted barley into three morphological component fractions showed that the residual structures of sprouted grains plus unsprouted grain fraction made up 82.9% and 93.6% of sprout biomass, on fresh and DM basis, respectively, and the remainder was provided by the root fraction, 10.3% and 3.2%, respectively, and by the green shoot fraction, 6.8% and 3.1%, respectively. The three morphological fractions differed in the content of the most analyzed nutrients.
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Affiliation(s)
- Luis T. Ortiz
- Departamento de Producción Animal Laboratorio de Agronomía, Facultad de Veterinaria, Universidad Complutense de Madrid, Avda. Puerta de Hierro S/n 28040, Madrid, Spain
| | - Susana Velasco
- Departamento de Producción Animal Laboratorio de Agronomía, Facultad de Veterinaria, Universidad Complutense de Madrid, Avda. Puerta de Hierro S/n 28040, Madrid, Spain
| | - Jesús Treviño
- Departamento de Producción Animal Laboratorio de Agronomía, Facultad de Veterinaria, Universidad Complutense de Madrid, Avda. Puerta de Hierro S/n 28040, Madrid, Spain
| | - Beatriz Jiménez
- Equinocol SL Colonia Herrero de Rosales 4, Cercedilla 28470, Madrid, Spain
| | - Almudena Rebolé
- Departamento de Producción Animal Laboratorio de Agronomía, Facultad de Veterinaria, Universidad Complutense de Madrid, Avda. Puerta de Hierro S/n 28040, Madrid, Spain
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12
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Burillo J, Marqués P, Jiménez B, González-Blanco C, Benito M, Guillén C. Insulin Resistance and Diabetes Mellitus in Alzheimer's Disease. Cells 2021; 10:1236. [PMID: 34069890 PMCID: PMC8157600 DOI: 10.3390/cells10051236] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/11/2021] [Accepted: 05/13/2021] [Indexed: 12/12/2022] Open
Abstract
Type 2 diabetes mellitus is a progressive disease that is characterized by the appearance of insulin resistance. The term insulin resistance is very wide and could affect different proteins involved in insulin signaling, as well as other mechanisms. In this review, we have analyzed the main molecular mechanisms that could be involved in the connection between type 2 diabetes and neurodegeneration, in general, and more specifically with the appearance of Alzheimer's disease. We have studied, in more detail, the different processes involved, such as inflammation, endoplasmic reticulum stress, autophagy, and mitochondrial dysfunction.
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Affiliation(s)
- Jesús Burillo
- Department of Biochemistry, Complutense University, 28040 Madrid, Spain; (J.B.); (P.M.); (B.J.); (C.G.-B.); (M.B.)
- Centro de Investigación Biomédica en Red (CIBER) de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), 28040 Madrid, Spain
- Mechanisms of Insulin Resistance (MOIR2), General Direction of Universities and Investigation (CCMM), 28040 Madrid, Spain
| | - Patricia Marqués
- Department of Biochemistry, Complutense University, 28040 Madrid, Spain; (J.B.); (P.M.); (B.J.); (C.G.-B.); (M.B.)
- Mechanisms of Insulin Resistance (MOIR2), General Direction of Universities and Investigation (CCMM), 28040 Madrid, Spain
| | - Beatriz Jiménez
- Department of Biochemistry, Complutense University, 28040 Madrid, Spain; (J.B.); (P.M.); (B.J.); (C.G.-B.); (M.B.)
- Centro de Investigación Biomédica en Red (CIBER) de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), 28040 Madrid, Spain
- Mechanisms of Insulin Resistance (MOIR2), General Direction of Universities and Investigation (CCMM), 28040 Madrid, Spain
| | - Carlos González-Blanco
- Department of Biochemistry, Complutense University, 28040 Madrid, Spain; (J.B.); (P.M.); (B.J.); (C.G.-B.); (M.B.)
- Mechanisms of Insulin Resistance (MOIR2), General Direction of Universities and Investigation (CCMM), 28040 Madrid, Spain
| | - Manuel Benito
- Department of Biochemistry, Complutense University, 28040 Madrid, Spain; (J.B.); (P.M.); (B.J.); (C.G.-B.); (M.B.)
- Centro de Investigación Biomédica en Red (CIBER) de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), 28040 Madrid, Spain
- Mechanisms of Insulin Resistance (MOIR2), General Direction of Universities and Investigation (CCMM), 28040 Madrid, Spain
| | - Carlos Guillén
- Department of Biochemistry, Complutense University, 28040 Madrid, Spain; (J.B.); (P.M.); (B.J.); (C.G.-B.); (M.B.)
- Centro de Investigación Biomédica en Red (CIBER) de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), 28040 Madrid, Spain
- Mechanisms of Insulin Resistance (MOIR2), General Direction of Universities and Investigation (CCMM), 28040 Madrid, Spain
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13
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Cazares S, Barrios JA, Maya C, Velásquez G, Pérez M, Jiménez B, Román A. Digital microscopic image application (DMIA), an automatic method for particle size distribution analysis in waste activated sludge. Water Sci Technol 2021; 83:2437-2451. [PMID: 34032621 DOI: 10.2166/wst.2021.102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
An important physical property in environmental samples is particle size distribution. Several processes exist to measure particle diameter, including change in electrical resistance, blocking of light, the fractionation of field flow and laser diffraction (these being the most commonly used). However, their use requires expensive and complex equipment. Therefore, a digital microscopic imaging application (DMIA) method was developed adapting the algorithms used in the helminth egg automatic detector software coupled with a neural network (NN) and Bayesian algorithms. This allowed the determination of particle size distribution in samples of waste activated sludge (WAS), recirculated sludge (RCS), and pre-treated sludge (PTS). The recirculation and electro-oxidation pre-treatment processes showed an effect in increasing the degree of solubilization, decreasing particle size and breakage factor with ranges between 44.29%, and 31.89%. Together with a final NN calibration process, it was possible to compare results. For example, the 90th percentile of equivalent diameter value obtained by the DMIA with the corresponding result for the laser diffraction method. DMIA values: 228.76 μm (WAS), 111.18 μm (RCS), and 84.45 μm (PTS). DMIA processing has advantages in terms of reducing complexity, cost and time, and offers an alternative to the laser diffraction method.
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Affiliation(s)
- S Cazares
- Instituto de Ingeniería, Universidad Nacional Autónoma de México, Coordinación de Ingeniería Ambiental, Circuito Escolar S/N, Ciudad Universitaria, Coyoacán, Ciudad de México, 04510, México E-mail:
| | - J A Barrios
- Instituto de Ingeniería, Universidad Nacional Autónoma de México, Coordinación de Ingeniería Ambiental, Circuito Escolar S/N, Ciudad Universitaria, Coyoacán, Ciudad de México, 04510, México E-mail:
| | - C Maya
- Instituto de Ingeniería, Universidad Nacional Autónoma de México, Coordinación de Ingeniería Ambiental, Circuito Escolar S/N, Ciudad Universitaria, Coyoacán, Ciudad de México, 04510, México E-mail:
| | - G Velásquez
- Instituto de Ingeniería, Universidad Nacional Autónoma de México, Coordinación de Ingeniería Ambiental, Circuito Escolar S/N, Ciudad Universitaria, Coyoacán, Ciudad de México, 04510, México E-mail:
| | - M Pérez
- Instituto de Ingeniería, Universidad Nacional Autónoma de México, Coordinación de Ingeniería Ambiental, Circuito Escolar S/N, Ciudad Universitaria, Coyoacán, Ciudad de México, 04510, México E-mail:
| | - B Jiménez
- Instituto de Ingeniería, Universidad Nacional Autónoma de México, Coordinación de Ingeniería Ambiental, Circuito Escolar S/N, Ciudad Universitaria, Coyoacán, Ciudad de México, 04510, México E-mail:
| | - A Román
- Instituto de Ingeniería, Universidad Nacional Autónoma de México, Coordinación de Ingeniería Ambiental, Circuito Escolar S/N, Ciudad Universitaria, Coyoacán, Ciudad de México, 04510, México E-mail:
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14
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Takis PG, Jiménez B, Al-Saffar NMS, Harvey N, Chekmeneva E, Misra S, Lewis MR. A Computationally Lightweight Algorithm for Deriving Reliable Metabolite Panel Measurements from 1D 1H NMR. Anal Chem 2021; 93:4995-5000. [PMID: 33733737 PMCID: PMC8041249 DOI: 10.1021/acs.analchem.1c00113] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 03/05/2021] [Indexed: 12/23/2022]
Abstract
Small Molecule Enhancement SpectroscopY (SMolESY) was employed to develop a unique and fully automated computational solution for the assignment and integration of 1H nuclear magnetic resonance (NMR) signals from metabolites in challenging matrices containing macromolecules (herein blood products). Sensitive and reliable quantitation is provided by instant signal deconvolution and straightforward integration bolstered by spectral resolution enhancement and macromolecular signal suppression. The approach is highly efficient, requiring only standard one-dimensional 1H NMR spectra and avoiding the need for sample preprocessing, complex deconvolution, and spectral baseline fitting. The performance of the algorithm, developed using >4000 NMR serum and plasma spectra, was evaluated using an additional >8800 spectra, yielding an assignment accuracy greater than 99.5% for all 22 metabolites targeted. Further validation of its quantitation capabilities illustrated a reliable performance among challenging phenotypes. The simplicity and complete automation of the approach support the application of NMR-based metabolite panel measurements in clinical and population screening applications.
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Affiliation(s)
- Panteleimon G. Takis
- National
Phenome Centre, Imperial College London, Hammer-smith Campus, IRDB Building, London W12 0NN, United Kingdom
- Section
of Bioanalytical Chemistry, Division of Systems Medicine, Department
of Metabolism, Digestion and Reproduction, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Beatriz Jiménez
- National
Phenome Centre, Imperial College London, Hammer-smith Campus, IRDB Building, London W12 0NN, United Kingdom
- Section
of Bioanalytical Chemistry, Division of Systems Medicine, Department
of Metabolism, Digestion and Reproduction, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Nada M. S. Al-Saffar
- National
Phenome Centre, Imperial College London, Hammer-smith Campus, IRDB Building, London W12 0NN, United Kingdom
- Section
of Bioanalytical Chemistry, Division of Systems Medicine, Department
of Metabolism, Digestion and Reproduction, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Nikita Harvey
- National
Phenome Centre, Imperial College London, Hammer-smith Campus, IRDB Building, London W12 0NN, United Kingdom
- Section
of Bioanalytical Chemistry, Division of Systems Medicine, Department
of Metabolism, Digestion and Reproduction, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Elena Chekmeneva
- National
Phenome Centre, Imperial College London, Hammer-smith Campus, IRDB Building, London W12 0NN, United Kingdom
- Section
of Bioanalytical Chemistry, Division of Systems Medicine, Department
of Metabolism, Digestion and Reproduction, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Shivani Misra
- Section of
Metabolic Medicine, Division of Diabetes, Endocrinology and Metabolism,
Department of Metabolism, Digestion and Reproduction, Imperial College London, St. Mary’s Campus, London W1 1PG, United Kingdom
| | - Matthew R. Lewis
- National
Phenome Centre, Imperial College London, Hammer-smith Campus, IRDB Building, London W12 0NN, United Kingdom
- Section
of Bioanalytical Chemistry, Division of Systems Medicine, Department
of Metabolism, Digestion and Reproduction, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
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15
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Burillo J, Fernández-Rhodes M, Piquero M, López-Alvarado P, Menéndez JC, Jiménez B, González-Blanco C, Marqués P, Guillén C, Benito M. Human amylin aggregates release within exosomes as a protective mechanism in pancreatic β cells: Pancreatic β-hippocampal cell communication. Biochim Biophys Acta Mol Cell Res 2021; 1868:118971. [PMID: 33515645 DOI: 10.1016/j.bbamcr.2021.118971] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 01/19/2021] [Accepted: 01/24/2021] [Indexed: 12/19/2022]
Abstract
Pancreatic β cells are essential in the maintenance of glucose homeostasis during the progression to type 2 Diabetes Mellitus (T2DM), generating compensatory hyperinsulinemia to counteract insulin resistance. It is well known, that throughout the process there is an increased mTORC1 signaling pathway, with an impairment in different quality control systems including ubiquitin-proteasome system and autophagy. In addition, under this situation, pancreatic β cells start to accumulate amylin protein (IAPP) in aggregates, and this accumulation contributes to the failure of autophagy, damaging different organelles such as plasma membrane, endoplasmic reticulum, mitochondria, and others. Here, we report that IAPP can be incorporated to multivesicular bodies (MVB) and secreted into exosomes, a mechanism responsible for the exportation of these toxic aggregates as vehicles of cell to cell communication. On this regard, we have demonstrated that the exosomes bearing toxic hIAPP released from pancreatic β cells are capable to induce hyperactivation of mTORC1 signaling, a failure in the autophagic cellular quality control, and favor pro-fission status of the mitochondrial dynamics in hippocampal cells. In summary, our results show that harmful accumulation of hIAPP in pancreatic β cells may be detoxified by the release of exosomes, which may be captured by endocytosis mechanism damaging neuronal hippocampal cells, which suggest an underlying molecular mechanism to the link between type 2 diabetes and neurodegenerative diseases.
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Affiliation(s)
- J Burillo
- Department of Biochemistry and molecular Biology, Complutense University, Madrid, Spain; Centro de Investigación Biomédica en Red (CIBER) de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Madrid, Spain; MOIR2: Mechanisms of Insulin Resistance, General Direction of Universities and Investigation (CCMM), Spain
| | - M Fernández-Rhodes
- Department of Biochemistry and molecular Biology, Complutense University, Madrid, Spain
| | - M Piquero
- Department of Organic Chemistry, Complutense University, Madrid, Spain
| | - P López-Alvarado
- Department of Organic Chemistry, Complutense University, Madrid, Spain
| | - J C Menéndez
- Department of Organic Chemistry, Complutense University, Madrid, Spain
| | - B Jiménez
- Department of Biochemistry and molecular Biology, Complutense University, Madrid, Spain; Centro de Investigación Biomédica en Red (CIBER) de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Madrid, Spain
| | - C González-Blanco
- Department of Biochemistry and molecular Biology, Complutense University, Madrid, Spain
| | - P Marqués
- Department of Biochemistry and molecular Biology, Complutense University, Madrid, Spain
| | - C Guillén
- Department of Biochemistry and molecular Biology, Complutense University, Madrid, Spain; Centro de Investigación Biomédica en Red (CIBER) de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Madrid, Spain; MOIR2: Mechanisms of Insulin Resistance, General Direction of Universities and Investigation (CCMM), Spain.
| | - M Benito
- Department of Biochemistry and molecular Biology, Complutense University, Madrid, Spain; Centro de Investigación Biomédica en Red (CIBER) de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Madrid, Spain; MOIR2: Mechanisms of Insulin Resistance, General Direction of Universities and Investigation (CCMM), Spain
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16
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Whiley L, Chappell KE, D'Hondt E, Lewis MR, Jiménez B, Snowden SG, Soininen H, Kłoszewska I, Mecocci P, Tsolaki M, Vellas B, Swann JR, Hye A, Lovestone S, Legido-Quigley C, Holmes E. Metabolic phenotyping reveals a reduction in the bioavailability of serotonin and kynurenine pathway metabolites in both the urine and serum of individuals living with Alzheimer's disease. Alzheimers Res Ther 2021; 13:20. [PMID: 33422142 PMCID: PMC7797094 DOI: 10.1186/s13195-020-00741-z] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 12/07/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND Both serotonergic signalling disruption and systemic inflammation have been associated with the pathogenesis of Alzheimer's disease (AD). The common denominator linking the two is the catabolism of the essential amino acid, tryptophan. Metabolism via tryptophan hydroxylase results in serotonin synthesis, whilst metabolism via indoleamine 2,3-dioxygenase (IDO) results in kynurenine and its downstream derivatives. IDO is reported to be activated in times of host systemic inflammation and therefore is thought to influence both pathways. To investigate metabolic alterations in AD, a large-scale metabolic phenotyping study was conducted on both urine and serum samples collected from a multi-centre clinical cohort, consisting of individuals clinically diagnosed with AD, mild cognitive impairment (MCI) and age-matched controls. METHODS Metabolic phenotyping was applied to both urine (n = 560) and serum (n = 354) from the European-wide AddNeuroMed/Dementia Case Register (DCR) biobank repositories. Metabolite data were subsequently interrogated for inter-group differences; influence of gender and age; comparisons between two subgroups of MCI - versus those who remained cognitively stable at follow-up visits (sMCI); and those who underwent further cognitive decline (cMCI); and the impact of selective serotonin reuptake inhibitor (SSRI) medication on metabolite concentrations. RESULTS Results revealed significantly lower metabolite concentrations of tryptophan pathway metabolites in the AD group: serotonin (urine, serum), 5-hydroxyindoleacetic acid (urine), kynurenine (serum), kynurenic acid (urine), tryptophan (urine, serum), xanthurenic acid (urine, serum), and kynurenine/tryptophan ratio (urine). For each listed metabolite, a decreasing trend in concentrations was observed in-line with clinical diagnosis: control > MCI > AD. There were no significant differences in the two MCI subgroups whilst SSRI medication status influenced observations in serum, but not urine. CONCLUSIONS Urine and serum serotonin concentrations were found to be significantly lower in AD compared with controls, suggesting the bioavailability of the neurotransmitter may be altered in the disease. A significant increase in the kynurenine/tryptophan ratio suggests that this may be a result of a shift to the kynurenine metabolic route due to increased IDO activity, potentially as a result of systemic inflammation. Modulation of the pathways could help improve serotonin bioavailability and signalling in AD patients.
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Affiliation(s)
- Luke Whiley
- UK Dementia Research Institute, Imperial College London, Hammersmith Hospital, London, W12 0NN, UK
- Health Futures Institute, Murdoch University, Perth, WA, 6105, Australia
- The Perron Institute for Neurological and Translational Science, Nedlands, WA, 6009, Australia
| | - Katie E Chappell
- Section of Bioanalytical Chemistry W12 0NN, UK, Imperial College London, Hammersmith Hospital, London, W12 0NN, UK
- National Phenome Centre, Imperial College London, Hammersmith Hospital, London, W12 0NN, UK
| | - Ellie D'Hondt
- imec, Exascience Life Lab, Kapeldreef 75, B-3001, Leuven, Belgium
| | - Matthew R Lewis
- Section of Bioanalytical Chemistry W12 0NN, UK, Imperial College London, Hammersmith Hospital, London, W12 0NN, UK
- National Phenome Centre, Imperial College London, Hammersmith Hospital, London, W12 0NN, UK
| | - Beatriz Jiménez
- National Phenome Centre, Imperial College London, Hammersmith Hospital, London, W12 0NN, UK
| | - Stuart G Snowden
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
- Present address: Core Metabolomics and Lipidomics Laboratory, Metabolic Research Laboratories, Institute of Metabolic Science, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Hilkka Soininen
- Department of Neurology, University of Eastern Finland and Kuopio University Hospital, Kuopio, Finland
| | | | - Patrizia Mecocci
- Institute of Gerontology and Geriatrics, University of Perugia, Perugia, Italy
| | - Magda Tsolaki
- 3rd Department of Neurology, Aristotle University, Thessaloniki, Greece
| | - Bruno Vellas
- INSERM U 558, University of Toulouse, Toulouse, France
| | - Jonathan R Swann
- Section of Bioanalytical Chemistry W12 0NN, UK, Imperial College London, Hammersmith Hospital, London, W12 0NN, UK
| | - Abdul Hye
- INSERM U 558, University of Toulouse, Toulouse, France
| | - Simon Lovestone
- Department of Psychiatry, Warneford Hospital, University of Oxford, Oxford, UK
- Current affiliation at Janssen-Cilag Ltd, High Wycombe, UK
| | - Cristina Legido-Quigley
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
- Steno Diabetes Center Copenhagen, Gentofte, Denmark
| | - Elaine Holmes
- UK Dementia Research Institute, Imperial College London, Hammersmith Hospital, London, W12 0NN, UK.
- Health Futures Institute, Murdoch University, Perth, WA, 6105, Australia.
- The Perron Institute for Neurological and Translational Science, Nedlands, WA, 6009, Australia.
- Section for Nutrition Research, Imperial College, Hammersmith Campus Du Cane Road, London, W12 0NN, UK.
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17
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Bartalini A, Muñoz-Arnanz J, Baini M, Panti C, Galli M, Giani D, Fossi MC, Jiménez B. Relevance of current PCB concentrations in edible fish species from the Mediterranean Sea. Sci Total Environ 2020; 737:139520. [PMID: 32531508 DOI: 10.1016/j.scitotenv.2020.139520] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 05/15/2020] [Accepted: 05/16/2020] [Indexed: 06/11/2023]
Abstract
Legal restrictions and bans have led to a steady decrease in PCB environmental concentrations. Yet, in recent years PCBs have been found at very high levels in the Mediterranean Sea, for instance, in some apex predators. This work aimed to investigate current PCB (eighteen congeners: #28,52,77,81,101,105,114,118,123,126,138,153,156,157,167,169,180,189) concentrations in the Mediterranean Sea and their relevance today, focusing on their occurrence in edible fish species typically consumed in the Mediterranean diet. In spring 2017, a total of 48 fish samples from the Northern Thyrrenian Sea were collected: 16 specimens of sardine (Sardina pilchardus), 16 of anchovy (Engraulis encrasicolus) and 16 of bogue (Boops boops). PCBs were quantified in the muscle of the animals by means of GC-QqQ-MS. They were found in all samples at the greatest concentrations (ng/g w.w.) in sardine (4.15-17.9, range), and very similar values between anchovy (1.01-7.08) and bogue (1.46-7.22). WHO-TEQ PCB values followed the same order, i.e. sardine (0.410-1.24, range in pg/g w.w.) > anchovy (0.0778-0.396) ~ bogue (0.0726-0.268). These concentrations lied below the European limits of 75 ng/g (w.w.) for the six indicator PCBs and 6.5 pg/g WHO-TEQ for dioxins and dioxin-like PCBs in muscle meat of fish. Additionally, estimated weekly intakes (EWI, in pg WHO-TEQ/Kg/week) for sardine (1.2), anchovy (0.29) and bogue (0.35) scored below the safe value proposed by EFSA of 2 pg WHO-TEQ/Kg/week. When comparing with data reported for the same species in previous Mediterranean studies, values found here were lower than those surveyed in the late 90s and early 2000s; however, they were often not notably different from concentrations reported in last years. This builds up on the concept of a current slow decrease of PCBs in the Mediterranean Sea, likely linked to new inputs and/or remobilization of burdens, and reinforces the need of continous monitoring of these legacy contaminants still ubiquitous today.
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Affiliation(s)
- A Bartalini
- Department of Environmental, Earth and Physical Sciences, University of Siena, via Mattioli 4, Siena, Italy; Department of Instrumental Analysis and Environmental Chemistry, Institute of Organic Chemistry, CSIC, Juan de la Cierva 3, Madrid, Spain
| | - J Muñoz-Arnanz
- Department of Instrumental Analysis and Environmental Chemistry, Institute of Organic Chemistry, CSIC, Juan de la Cierva 3, Madrid, Spain.
| | - M Baini
- Department of Environmental, Earth and Physical Sciences, University of Siena, via Mattioli 4, Siena, Italy
| | - C Panti
- Department of Environmental, Earth and Physical Sciences, University of Siena, via Mattioli 4, Siena, Italy
| | - M Galli
- Department of Environmental, Earth and Physical Sciences, University of Siena, via Mattioli 4, Siena, Italy
| | - D Giani
- Department of Environmental, Earth and Physical Sciences, University of Siena, via Mattioli 4, Siena, Italy
| | - M C Fossi
- Department of Environmental, Earth and Physical Sciences, University of Siena, via Mattioli 4, Siena, Italy
| | - B Jiménez
- Department of Instrumental Analysis and Environmental Chemistry, Institute of Organic Chemistry, CSIC, Juan de la Cierva 3, Madrid, Spain
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18
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Jiménez B, Maya C, Velásquez G, Barrios JA, Perez M, Román A. Helminth Egg Automatic Detector (HEAD): Improvements in development for digital identification and quantification of helminth eggs and their application online. Exp Parasitol 2020; 217:107959. [PMID: 32795471 PMCID: PMC7526613 DOI: 10.1016/j.exppara.2020.107959] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 07/17/2020] [Accepted: 07/21/2020] [Indexed: 11/15/2022]
Abstract
Helminths are parasitic worms that constitute a major public health problem. Conventional analytical techniques to evaluate helminth eggs in environmental samples rely on different steps, namely sedimentation, filtration, centrifugation, and flotation, to separate the eggs from a variety of particles and concentrate them in a pellet for direct observation under an optical microscope. To improve this process, a new approach was implemented in which various image processing algorithms were developed and implemented by a Helminth Egg Automatic Detector (HEAD). This allowed identification and quantification of pathogenic helminth eggs of global medical importance and it was found to be useful for relatively clean wastewater samples. After the initial version, two improvements were developed: first, a texture verification process that reduced the number of false positive results; and second, the establishment of the optimal thresholds (morphology and texture) for each helminth egg species. This second implementation, which was found to improve on the results of the former, was developed with the objective of using free software as a platform for the system. This does not require the purchase of a license, unlike the previous version that required a Mathworks® license to run. After an internal statistical verification of the system was carried out, trials in internationally recognized microbiology laboratories were performed with the aim of reinforcing software training and developing a web-based system able to receive images and perform the analysis throughout a web service. Once completed, these improvements represented a useful and cheap tool that could be used by environmental monitoring facilities and laboratories throughout the world; this tool is capable of identifying and quantifying different species of helminth eggs in otherwise difficult environmental samples: wastewater, soil, biosolids, excreta, and sludge, with a sensitivity and specificity for the TensorFlow (TF) model in the web service values of 96.82% and 97.96% respectively. Additionally, in the case of Ascaris, it may even differentiate between fertile and non-fertile eggs.
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Affiliation(s)
- B Jiménez
- Instituto de Ingeniería, UNAM, P.O. Box 70-186, México, D.F., 04510, Mexico.
| | - C Maya
- Instituto de Ingeniería, UNAM, P.O. Box 70-186, México, D.F., 04510, Mexico.
| | - G Velásquez
- Instituto de Ingeniería, UNAM, P.O. Box 70-186, México, D.F., 04510, Mexico.
| | - J A Barrios
- Instituto de Ingeniería, UNAM, P.O. Box 70-186, México, D.F., 04510, Mexico.
| | - M Perez
- Instituto de Ingeniería, UNAM, P.O. Box 70-186, México, D.F., 04510, Mexico.
| | - A Román
- Instituto de Ingeniería, UNAM, P.O. Box 70-186, México, D.F., 04510, Mexico.
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19
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Hunsche C, Martínez de Toda I, Hernandez O, Jiménez B, Díaz LE, Marcos A, De la Fuente M. The supplementations with 2-hydroxyoleic acid and n-3 polyunsaturated fatty acids revert oxidative stress in various organs of diet-induced obese mice. Free Radic Res 2020; 54:455-466. [PMID: 32752974 DOI: 10.1080/10715762.2020.1800004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Obesity and its related diseases have been associated with oxidative stress. Thus, the search for nutritional strategies to ameliorate oxidative stress in obese individuals seems important. We hypothesized that the supplementation with monounsaturated (2-hydroxyoleic acid (2-OHOA)) and with combined n-3 polyunsaturated (eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA)) fatty acids would ameliorate oxidative stress in different organs, including brain, liver, lungs, and kidneys of adult diet-induced obese (DIO) mice. Adult female ICR-CD1 mice were fed a high-fat diet (HFD) for 14 weeks. During the last 6 weeks of HFD feeding, one group of DIO mice received the same HFD, supplemented with 1500 mg of 2-OHOA per kg of HFD and another group with 1500 mg of EPA and 1500 mg of DHA per kg of HFD. At the end of the experiment, several parameters of oxidative stress were assessed. The supplementation with 2-OHOA or with EPA and DHA in DIO mice was able to revert oxidative stress, enhancing the activities of catalase and glutathione reductase, as well as diminishing the activity of xanthine oxidase, the concentration of thiobarbituric acid reactive substances (TBARS) and the ratio between oxidized glutathione and reduced glutathione in several organs. These reached similar values to those of control mice, which were fed a standard diet. These data suggest that supplementation with 2-OHOA and with EPA and DHA could be an effective nutritional intervention to restore an appropriate redox state in DIO mice.
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Affiliation(s)
- Caroline Hunsche
- Department of Genetics, Physiology and Microbiology (Unit of Animal Physiology), Faculty of Biology, Complutense University of Madrid and Research Institute of Hospital 12 de Octubre (i + 12), Madrid, Spain
| | - Irene Martínez de Toda
- Department of Genetics, Physiology and Microbiology (Unit of Animal Physiology), Faculty of Biology, Complutense University of Madrid and Research Institute of Hospital 12 de Octubre (i + 12), Madrid, Spain
| | - Oskarina Hernandez
- Department of Genetics, Physiology and Microbiology (Unit of Animal Physiology), Faculty of Biology, Complutense University of Madrid and Research Institute of Hospital 12 de Octubre (i + 12), Madrid, Spain
| | - Beatriz Jiménez
- Department of Genetics, Physiology and Microbiology (Unit of Animal Physiology), Faculty of Biology, Complutense University of Madrid and Research Institute of Hospital 12 de Octubre (i + 12), Madrid, Spain
| | - Ligia Esperanza Díaz
- Department of Metabolism and Nutrition, Institute of Food Science, Technology and Nutrition (ICTAN), Spanish National Research Council (CSIC), Madrid, Spain
| | - Ascensión Marcos
- Department of Metabolism and Nutrition, Institute of Food Science, Technology and Nutrition (ICTAN), Spanish National Research Council (CSIC), Madrid, Spain
| | - Mónica De la Fuente
- Department of Genetics, Physiology and Microbiology (Unit of Animal Physiology), Faculty of Biology, Complutense University of Madrid and Research Institute of Hospital 12 de Octubre (i + 12), Madrid, Spain
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20
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Madurga R, García-Romero N, Jiménez B, Collazo A, Pérez-Rodríguez F, Hernández-Laín A, Fernández-Carballal C, Prat-Acín R, Zanin M, Menasalvas E, Ayuso-Sacido Á. Normal tissue content impact on the GBM molecular classification. Brief Bioinform 2020; 22:5868069. [PMID: 32632447 DOI: 10.1093/bib/bbaa129] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 05/18/2020] [Accepted: 05/26/2020] [Indexed: 12/19/2022] Open
Abstract
Molecular classification of glioblastoma has enabled a deeper understanding of the disease. The four-subtype model (including Proneural, Classical, Mesenchymal and Neural) has been replaced by a model that discards the Neural subtype, found to be associated with samples with a high content of normal tissue. These samples can be misclassified preventing biological and clinical insights into the different tumor subtypes from coming to light. In this work, we present a model that tackles both the molecular classification of samples and discrimination of those with a high content of normal cells. We performed a transcriptomic in silico analysis on glioblastoma (GBM) samples (n = 810) and tested different criteria to optimize the number of genes needed for molecular classification. We used gene expression of normal brain samples (n = 555) to design an additional gene signature to detect samples with a high normal tissue content. Microdissection samples of different structures within GBM (n = 122) have been used to validate the final model. Finally, the model was tested in a cohort of 43 patients and confirmed by histology. Based on the expression of 20 genes, our model is able to discriminate samples with a high content of normal tissue and to classify the remaining ones. We have shown that taking into consideration normal cells can prevent errors in the classification and the subsequent misinterpretation of the results. Moreover, considering only samples with a low content of normal cells, we found an association between the complexity of the samples and survival for the three molecular subtypes.
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Affiliation(s)
- Rodrigo Madurga
- Biostatistics and Bioinformatics at Fundación de Investigación HM Hospitales and Professor at the Faculty of Experimental Sciences of the Universidad Francisco de Vitoria
| | - Noemí García-Romero
- Molecular Biology at Fundación Vithas and professor at Francisco de Vitoria University
| | | | | | | | | | | | | | | | - Ernestina Menasalvas
- Department of Computer Systems Languages and Software Engineering at the Faculty of Computer Science of Universidad Politecnica de Madrid
| | - Ángel Ayuso-Sacido
- Brain Tumour Laboratory, Scientific Director at Vithas Hospitals, Managing Director at Fundación Vithas and Professor at the Medial School of Francisco de Vitoria University
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21
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Robles I, Becerra E, Barrios JA, Maya C, Jiménez B, Rodríguez-Valadez FJ, Rivera F, García-Espinoza JD, Godínez LA. Inactivation of helminth eggs in an electro-Fenton reactor: Towards full electrochemical disinfection of human waste using activated carbon. Chemosphere 2020; 250:126260. [PMID: 32105860 PMCID: PMC7221348 DOI: 10.1016/j.chemosphere.2020.126260] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 02/13/2020] [Accepted: 02/15/2020] [Indexed: 05/03/2023]
Abstract
The disinfection of helminth eggs and Escherichia coli contaminated aqueous solutions, was studied using an electro-Fenton reactor equipped with a polarized activated carbon (AC) packed bed and two chambers loaded with cation exchange resins. Experiments using different arrangements and operation conditions, revealed that effective elimination of Escherichia coli takes place in all electrochemical disinfection tests. For the more resistant helminth eggs however, adsorption, electro-oxidation and electro-Fenton experiments showed retention within the reactor and pathogen inactivation values of 0, 16, and 25%, respectively. Using helminth eggs concentration data in different sections of the reactor, optical microscopy analysis and an exploratory computer simulation, differences in the disinfection performance were explained and new recirculation and flow direction and polarization switching operation schemes were defined. The corresponding experiments revealed that the effective coupling between adsorption and electro-Fenton phenomena, all along the AC packed bed compartment, results in 100% inactivation of helminth eggs.
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Affiliation(s)
- Irma Robles
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica S.C., Parque Tecnológico Querétaro, Sanfandila, 76703, Pedro Escobedo, Querétaro, Mexico
| | - Emmanuel Becerra
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica S.C., Parque Tecnológico Querétaro, Sanfandila, 76703, Pedro Escobedo, Querétaro, Mexico
| | - J A Barrios
- Instituto de Ingeniería, Universidad Nacional Autónoma de México, 04510, CDMX, Mexico
| | - C Maya
- Instituto de Ingeniería, Universidad Nacional Autónoma de México, 04510, CDMX, Mexico
| | - B Jiménez
- Instituto de Ingeniería, Universidad Nacional Autónoma de México, 04510, CDMX, Mexico
| | - Francisco J Rodríguez-Valadez
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica S.C., Parque Tecnológico Querétaro, Sanfandila, 76703, Pedro Escobedo, Querétaro, Mexico
| | - Fernando Rivera
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica S.C., Parque Tecnológico Querétaro, Sanfandila, 76703, Pedro Escobedo, Querétaro, Mexico
| | - Josué D García-Espinoza
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica S.C., Parque Tecnológico Querétaro, Sanfandila, 76703, Pedro Escobedo, Querétaro, Mexico
| | - Luis A Godínez
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica S.C., Parque Tecnológico Querétaro, Sanfandila, 76703, Pedro Escobedo, Querétaro, Mexico.
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22
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García-Romero N, Palacín-Aliana I, Madurga R, Carrión-Navarro J, Esteban-Rubio S, Jiménez B, Collazo A, Pérez-Rodríguez F, Ortiz de Mendivil A, Fernández-Carballal C, García-Duque S, Diamantopoulos-Fernández J, Belda-Iniesta C, Prat-Acín R, Sánchez-Gómez P, Calvo E, Ayuso-Sacido A. Bevacizumab dose adjustment to improve clinical outcomes of glioblastoma. BMC Med 2020; 18:142. [PMID: 32564774 PMCID: PMC7310142 DOI: 10.1186/s12916-020-01610-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Accepted: 04/29/2020] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Glioblastoma (GBM) is one of the most aggressive and vascularized brain tumors in adults, with a median survival of 20.9 months. In newly diagnosed and recurrent GBM, bevacizumab demonstrated an increase in progression-free survival, but not in overall survival. METHODS We conducted an in silico analysis of VEGF expression, in a cohort of 1082 glioma patients. Then, to determine whether appropriate bevacizumab dose adjustment could increase the anti-angiogenic response, we used in vitro and in vivo GBM models. Additionally, we analyzed VEGFA expression in tissue, serum, and plasma in a cohort of GBM patients before and during bevacizumab treatment. RESULTS We identified that 20% of primary GBM did not express VEGFA suggesting that these patients would probably not respond to bevacizumab therapy as we proved in vitro and in vivo. We found that a specific dose of bevacizumab calculated based on VEGFA expression levels increases the response to treatment in cell culture and serum samples from mice bearing GBM tumors. Additionally, in a cohort of GBM patients, we observed a correlation of VEGFA levels in serum, but not in plasma, with bevacizumab treatment performance. CONCLUSIONS Our data suggest that bevacizumab dose adjustment could improve clinical outcomes in Glioblastoma treatment.
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Affiliation(s)
- N García-Romero
- Fundación de Investigación HM Hospitales, HM Hospitales, Madrid, Spain.,Faculty of Experimental Sciences, Universidad Francisco de Vitoria, Pozuelo de Alarcón, Madrid, 28223, Spain
| | - I Palacín-Aliana
- Fundación de Investigación HM Hospitales, HM Hospitales, Madrid, Spain.,Atrys Health, Barcelona, 08025, Spain
| | - R Madurga
- Fundación de Investigación HM Hospitales, HM Hospitales, Madrid, Spain.,Faculty of Experimental Sciences, Universidad Francisco de Vitoria, Pozuelo de Alarcón, Madrid, 28223, Spain
| | - J Carrión-Navarro
- Faculty of Experimental Sciences, Universidad Francisco de Vitoria, Pozuelo de Alarcón, Madrid, 28223, Spain.,Fundación Vithas, Vithas Hospitals, Madrid, 28043, Spain.,Formerly: Fundación de Investigación HM Hospitales, HM Hospitales, Madrid, Spain
| | - S Esteban-Rubio
- Formerly: Facultad de Medicina (IMMA), Universidad San Pablo-CEU, Madrid, Spain
| | - B Jiménez
- Fundación de Investigación HM Hospitales, HM Hospitales, Madrid, Spain
| | - A Collazo
- Fundación de Investigación HM Hospitales, HM Hospitales, Madrid, Spain
| | - F Pérez-Rodríguez
- Fundación de Investigación HM Hospitales, HM Hospitales, Madrid, Spain
| | | | - C Fernández-Carballal
- Servicio de Neurocirugía, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - S García-Duque
- Fundación de Investigación HM Hospitales, HM Hospitales, Madrid, Spain
| | | | - C Belda-Iniesta
- Fundación de Investigación HM Hospitales, HM Hospitales, Madrid, Spain
| | - R Prat-Acín
- Departamento de Neurocirugía, Hospital Universitario la Fe, Valencia, Spain
| | - P Sánchez-Gómez
- Neuro-oncology Unit, Instituto de Salud Carlos III-UFIEC, Madrid, Spain
| | - E Calvo
- Fundación de Investigación HM Hospitales, HM Hospitales, Madrid, Spain.,START Madrid-CIOCC, Centro Integral Oncológico Clara Campal, Madrid, Spain
| | - A Ayuso-Sacido
- Faculty of Experimental Sciences, Universidad Francisco de Vitoria, Pozuelo de Alarcón, Madrid, 28223, Spain. .,Fundación Vithas, Vithas Hospitals, Madrid, 28043, Spain. .,Formerly: Fundación de Investigación HM Hospitales, HM Hospitales, Madrid, Spain. .,Formerly: Facultad de Medicina (IMMA), Universidad San Pablo-CEU, Madrid, Spain. .,Formerly: Facultad de Medicina (IMMA), Universidad San Pablo-CEU, Madrid, Spain.
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23
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Rodriguez-Martinez A, Ayala R, Posma JM, Harvey N, Jiménez B, Sonomura K, Sato TA, Matsuda F, Zalloua P, Gauguier D, Nicholson JK, Dumas ME. pJRES Binning Algorithm (JBA): a new method to facilitate the recovery of metabolic information from pJRES 1H NMR spectra. Bioinformatics 2020; 35:1916-1922. [PMID: 30351417 PMCID: PMC6546129 DOI: 10.1093/bioinformatics/bty837] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 08/24/2018] [Accepted: 10/22/2018] [Indexed: 01/21/2023] Open
Abstract
Motivation Data processing is a key bottleneck for 1H NMR-based metabolic profiling of complex biological mixtures, such as biofluids. These spectra typically contain several thousands of signals, corresponding to possibly few hundreds of metabolites. A number of binning-based methods have been proposed to reduce the dimensionality of 1 D 1H NMR datasets, including statistical recoupling of variables (SRV). Here, we introduce a new binning method, named JBA (“pJRES Binning Algorithm”), which aims to extend the applicability of SRV to pJRES spectra. Results The performance of JBA is comprehensively evaluated using 617 plasma 1H NMR spectra from the FGENTCARD cohort. The results presented here show that JBA exhibits higher sensitivity than SRV to detect peaks from low-abundance metabolites. In addition, JBA allows a more efficient removal of spectral variables corresponding to pure electronic noise, and this has a positive impact on multivariate model building Availability and implementation The algorithm is implemented using the MWASTools R/Bioconductor package. Supplementary information Supplementary data are available at Bioinformatics online.
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Affiliation(s)
- Andrea Rodriguez-Martinez
- Division of Integrative Systems Medicine and Digestive Diseases, Department of Surgery and Cancer, Imperial College London, London, UK.,Department of Epidemiology and Biostatistics School of Public Health, Imperial College London, London, UK
| | - Rafael Ayala
- Section of Structural Biology, Department of Medicine, Shimadzu Corporation, Kyoto, Japan
| | - Joram M Posma
- Division of Integrative Systems Medicine and Digestive Diseases, Department of Surgery and Cancer, Imperial College London, London, UK.,Department of Epidemiology and Biostatistics School of Public Health, Imperial College London, London, UK
| | - Nikita Harvey
- Division of Integrative Systems Medicine and Digestive Diseases, Department of Surgery and Cancer, Imperial College London, London, UK
| | - Beatriz Jiménez
- Division of Integrative Systems Medicine and Digestive Diseases, Department of Surgery and Cancer, Imperial College London, London, UK
| | - Kazuhiro Sonomura
- Life Science Research Center, Technology Research Laboratory, Shimadzu Corporation, Kyoto, Japan.,Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Taka-Aki Sato
- Life Science Research Center, Technology Research Laboratory, Shimadzu Corporation, Kyoto, Japan.,Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Fumihiko Matsuda
- Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Pierre Zalloua
- School of Medicine, Lebanese American University, Beirut, Lebanon
| | - Dominique Gauguier
- Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan.,Cordeliers Research Centre, INSERM UMR_S, Paris, France
| | - Jeremy K Nicholson
- Division of Integrative Systems Medicine and Digestive Diseases, Department of Surgery and Cancer, Imperial College London, London, UK
| | - Marc-Emmanuel Dumas
- Division of Integrative Systems Medicine and Digestive Diseases, Department of Surgery and Cancer, Imperial College London, London, UK
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24
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Takis PG, Jiménez B, Sands CJ, Chekmeneva E, Lewis MR. SMolESY: an efficient and quantitative alternative to on-instrument macromolecular 1H-NMR signal suppression. Chem Sci 2020; 11:6000-6011. [PMID: 34094091 PMCID: PMC8159292 DOI: 10.1039/d0sc01421d] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 05/26/2020] [Indexed: 12/23/2022] Open
Abstract
One-dimensional (1D) proton-nuclear magnetic resonance (1H-NMR) spectroscopy is an established technique for measuring small molecules in a wide variety of complex biological sample types. It is demonstrably reproducible, easily automatable and consequently ideal for routine and large-scale application. However, samples containing proteins, lipids, polysaccharides and other macromolecules produce broad signals which overlap and convolute those from small molecules. NMR experiment types designed to suppress macromolecular signals during acquisition may be additionally performed, however these approaches add to the overall sample analysis time and cost, especially for large cohort studies, and fail to produce reliably quantitative data. Here, we propose an alternative way of computationally eliminating macromolecular signals, employing the mathematical differentiation of standard 1H-NMR spectra, producing small molecule-enhanced spectra with preserved quantitative capability and increased resolution. Our approach, presented in its simplest form, was implemented in a cheminformatic toolbox and successfully applied to more than 3000 samples of various biological matrices rich or potentially rich with macromolecules, offering an efficient alternative to on-instrument experimentation, facilitating NMR use in routine and large-scale applications.
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Affiliation(s)
- Panteleimon G Takis
- Section of Bioanalytical Chemistry, Division of Systems Medicine, Department of Metabolism, Digestion and Reproduction, Imperial College London, South Kensington Campus London SW7 2AZ UK
- National Phenome Centre, Department of Metabolism, Digestion and Reproduction, Imperial College London, Hammersmith Campus IRDB Building London W12 0NN UK
| | - Beatriz Jiménez
- Section of Bioanalytical Chemistry, Division of Systems Medicine, Department of Metabolism, Digestion and Reproduction, Imperial College London, South Kensington Campus London SW7 2AZ UK
- National Phenome Centre, Department of Metabolism, Digestion and Reproduction, Imperial College London, Hammersmith Campus IRDB Building London W12 0NN UK
| | - Caroline J Sands
- Section of Bioanalytical Chemistry, Division of Systems Medicine, Department of Metabolism, Digestion and Reproduction, Imperial College London, South Kensington Campus London SW7 2AZ UK
- National Phenome Centre, Department of Metabolism, Digestion and Reproduction, Imperial College London, Hammersmith Campus IRDB Building London W12 0NN UK
| | - Elena Chekmeneva
- Section of Bioanalytical Chemistry, Division of Systems Medicine, Department of Metabolism, Digestion and Reproduction, Imperial College London, South Kensington Campus London SW7 2AZ UK
- National Phenome Centre, Department of Metabolism, Digestion and Reproduction, Imperial College London, Hammersmith Campus IRDB Building London W12 0NN UK
| | - Matthew R Lewis
- Section of Bioanalytical Chemistry, Division of Systems Medicine, Department of Metabolism, Digestion and Reproduction, Imperial College London, South Kensington Campus London SW7 2AZ UK
- National Phenome Centre, Department of Metabolism, Digestion and Reproduction, Imperial College London, Hammersmith Campus IRDB Building London W12 0NN UK
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25
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Andreas NJ, Basu Roy R, Gomez-Romero M, Horneffer-van der Sluis V, Lewis MR, Camuzeaux SSM, Jiménez B, Posma JM, Tientcheu L, Egere U, Sillah A, Togun T, Holmes E, Kampmann B. Performance of metabonomic serum analysis for diagnostics in paediatric tuberculosis. Sci Rep 2020; 10:7302. [PMID: 32350385 PMCID: PMC7190829 DOI: 10.1038/s41598-020-64413-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 03/13/2020] [Indexed: 12/31/2022] Open
Abstract
We applied a metabonomic strategy to identify host biomarkers in serum to diagnose paediatric tuberculosis (TB) disease. 112 symptomatic children with presumptive TB were recruited in The Gambia and classified as bacteriologically-confirmed TB, clinically diagnosed TB, or other diseases. Sera were analysed using 1H nuclear magnetic resonance (NMR) spectroscopy and mass spectrometry (MS). Multivariate data analysis was used to distinguish patients with TB from other diseases. Diagnostic accuracy was evaluated using Receiver Operating Characteristic (ROC) curves. Model performance was tested in a validation cohort of 36 children from the UK. Data acquired using 1H NMR demonstrated a sensitivity, specificity and Area Under the Curve (AUC) of 69% (95% confidence interval [CI], 56-73%), 83% (95% CI, 73-93%), and 0.78 respectively, and correctly classified 20% of the validation cohort from the UK. The most discriminatory MS data showed a sensitivity of 67% (95% CI, 60-71%), specificity of 86% (95% CI, 75-93%) and an AUC of 0.78, correctly classifying 83% of the validation cohort. Amongst children with presumptive TB, metabolic profiling of sera distinguished bacteriologically-confirmed and clinical TB from other diseases. This novel approach yielded a diagnostic performance for paediatric TB comparable to that of Xpert MTB/RIF and interferon gamma release assays.
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Affiliation(s)
- Nicholas J Andreas
- Centre for International Child Health, Department of Paediatrics, Imperial College London, St. Mary's Hospital, Praed Street, London, W2 1NY, United Kingdom
- Division of Computational and Systems Medicine, Department of Surgery and Cancer, Imperial College London, Sir Alexander Fleming Building, South Kensington, London, SW7 2AZ, United Kingdom
| | - Robindra Basu Roy
- Centre for International Child Health, Department of Paediatrics, Imperial College London, St. Mary's Hospital, Praed Street, London, W2 1NY, United Kingdom
- MRC Unit The Gambia at the London School of Hygiene and Tropical Medicine, Vaccines and Immunity Theme, Atlantic Road, Fajara, The Gambia
- The Vaccine Centre, Department of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, Keppel Street, London, WC1E 7HT, United Kingdom
| | - Maria Gomez-Romero
- Division of Computational and Systems Medicine, Department of Surgery and Cancer, Imperial College London, Sir Alexander Fleming Building, South Kensington, London, SW7 2AZ, United Kingdom
- MRC-NIHR National Phenome Centre, Department of Surgery and Cancer, Imperial College London, IRDB Building, Du Cane Road, London, W12 0NN, United Kingdom
- Clinical Phenotyping Centre, Department of Surgery and Cancer, Imperial College London, Sir Alexander Fleming Building, South Kensington, London, SW7 2AZ, United Kingdom
| | - Verena Horneffer-van der Sluis
- Division of Computational and Systems Medicine, Department of Surgery and Cancer, Imperial College London, Sir Alexander Fleming Building, South Kensington, London, SW7 2AZ, United Kingdom
- MRC-NIHR National Phenome Centre, Department of Surgery and Cancer, Imperial College London, IRDB Building, Du Cane Road, London, W12 0NN, United Kingdom
| | - Matthew R Lewis
- Division of Computational and Systems Medicine, Department of Surgery and Cancer, Imperial College London, Sir Alexander Fleming Building, South Kensington, London, SW7 2AZ, United Kingdom
- MRC-NIHR National Phenome Centre, Department of Surgery and Cancer, Imperial College London, IRDB Building, Du Cane Road, London, W12 0NN, United Kingdom
- Clinical Phenotyping Centre, Department of Surgery and Cancer, Imperial College London, Sir Alexander Fleming Building, South Kensington, London, SW7 2AZ, United Kingdom
| | - Stephane S M Camuzeaux
- MRC-NIHR National Phenome Centre, Department of Surgery and Cancer, Imperial College London, IRDB Building, Du Cane Road, London, W12 0NN, United Kingdom
| | - Beatriz Jiménez
- Division of Computational and Systems Medicine, Department of Surgery and Cancer, Imperial College London, Sir Alexander Fleming Building, South Kensington, London, SW7 2AZ, United Kingdom
- MRC-NIHR National Phenome Centre, Department of Surgery and Cancer, Imperial College London, IRDB Building, Du Cane Road, London, W12 0NN, United Kingdom
- Clinical Phenotyping Centre, Department of Surgery and Cancer, Imperial College London, Sir Alexander Fleming Building, South Kensington, London, SW7 2AZ, United Kingdom
| | - Joram M Posma
- Division of Computational and Systems Medicine, Department of Surgery and Cancer, Imperial College London, Sir Alexander Fleming Building, South Kensington, London, SW7 2AZ, United Kingdom
| | - Leopold Tientcheu
- MRC Unit The Gambia at the London School of Hygiene and Tropical Medicine, Vaccines and Immunity Theme, Atlantic Road, Fajara, The Gambia
| | - Uzochukwu Egere
- MRC Unit The Gambia at the London School of Hygiene and Tropical Medicine, Vaccines and Immunity Theme, Atlantic Road, Fajara, The Gambia
| | - Abdou Sillah
- MRC Unit The Gambia at the London School of Hygiene and Tropical Medicine, Vaccines and Immunity Theme, Atlantic Road, Fajara, The Gambia
| | - Toyin Togun
- MRC Unit The Gambia at the London School of Hygiene and Tropical Medicine, Vaccines and Immunity Theme, Atlantic Road, Fajara, The Gambia
- The Vaccine Centre, Department of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, Keppel Street, London, WC1E 7HT, United Kingdom
| | - Elaine Holmes
- Division of Computational and Systems Medicine, Department of Surgery and Cancer, Imperial College London, Sir Alexander Fleming Building, South Kensington, London, SW7 2AZ, United Kingdom
| | - Beate Kampmann
- Centre for International Child Health, Department of Paediatrics, Imperial College London, St. Mary's Hospital, Praed Street, London, W2 1NY, United Kingdom.
- MRC Unit The Gambia at the London School of Hygiene and Tropical Medicine, Vaccines and Immunity Theme, Atlantic Road, Fajara, The Gambia.
- The Vaccine Centre, Department of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, Keppel Street, London, WC1E 7HT, United Kingdom.
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26
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Corrochano M, Jiménez B, Millón J, Gich I, Rambla M, Gil E, Caparrós P, Macho R, Souto JC. Patient self-management of oral anticoagulation with vitamin K antagonists in everyday practice: clinical outcomes in a single centre cohort after long-term follow-up. BMC Cardiovasc Disord 2020; 20:166. [PMID: 32276619 PMCID: PMC7146979 DOI: 10.1186/s12872-020-01448-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 03/26/2020] [Indexed: 12/21/2022] Open
Abstract
Background Patient self-management (PSM) of vitamin K antagonists (VKA) seems a very promising model of care for oral anticoagulation in terms of efficacy and safety. In comparison with other management models of VKA therapy, the number of scientific publications supporting the advantages of PSM is more limited. Currently, most of the scarce information comes from randomized clinical trials. Moreover, a small number of studies have assessed PSM of VKA therapy in real life conditions. Methods We analyzed clinical outcomes of 927 patients in a single center (6018.6 patient-years of follow-up). Recruitment took place between 2002 and 2017. All patients followed a structured training program, conducted by specialized nurses. Results Fifty percent of individuals had a mechanical heart valve (MHV), 23% suffered from recurrent venous thromboembolism (VTE) or high-risk thrombophilia, and 13% received VKA therapy because of atrial fibrillation (AF). Median follow-up was 6.5 years (range 0.1–15.97 years), median age was 58.1 years (IQR 48–65.9) and 46.5% were women. The incidence of major complications (either hemorrhagic or thromboembolic) was 1.87% patient-years (pt-ys) with a 95% CI of 1.54–2.27. The incidence of major thromboembolic events was 0.86% pt-ys (95% CI 0.64–1.13) and that of major hemorrhagic events was 1.01% pt-ys (95% CI 0.77–1.31). The incidence of intracranial bleeding was 0.22% pt-ys (95% CI 0.12–0.38). In terms of clinical indication for VKA therapy, the incidence of total major complications was 2.4% pt-ys, 2.0% pt-ys, 0.9% pt-ys and 1.34% pt-ys for MHV, AF, VTE and other (including valvulopathies and myocardiopathies), respectively. Clinical outcomes were worse in patients with multiple comorbidities, previous major complications during conventional VKA therapy, and in older individuals. The percentage of time in therapeutic range (TTR) was available in 861 (93%) patients. Overall, the mean (SD) of TTR was 63.6 ± 13.4%, being higher in men (66.2 ± 13.1%) than women (60.6 ± 13.2%), p < 0.05. Conclusions In terms of clinically relevant outcomes (incidence of major complications and mortality), PSM in real life setting seems to be a very good alternative in properly trained patients.
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Affiliation(s)
- M Corrochano
- Haemostasis and Thrombosis Unit, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.
| | - B Jiménez
- Institut de Recerca. Hospital de la Santa Creu i Sant Pau (IIB-Sant Pau), Barcelona, Spain
| | - J Millón
- Haemostasis and Thrombosis Unit, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - I Gich
- Clinical Epidemiology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - M Rambla
- Haemostasis and Thrombosis Unit, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - E Gil
- Haemostasis and Thrombosis Unit, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - P Caparrós
- Haemostasis and Thrombosis Unit, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - R Macho
- Haemostasis and Thrombosis Unit, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - J C Souto
- Haemostasis and Thrombosis Unit, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
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27
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Sands CJ, Wolfer AM, Correia GDS, Sadawi N, Ahmed A, Jiménez B, Lewis MR, Glen RC, Nicholson JK, Pearce JTM. The nPYc-Toolbox, a Python module for the pre-processing, quality-control and analysis of metabolic profiling datasets. Bioinformatics 2019; 35:5359-5360. [PMID: 31350543 PMCID: PMC6954639 DOI: 10.1093/bioinformatics/btz566] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 06/18/2019] [Accepted: 07/19/2019] [Indexed: 12/24/2022] Open
Abstract
SUMMARY As large-scale metabolic phenotyping studies become increasingly common, the need for systemic methods for pre-processing and quality control (QC) of analytical data prior to statistical analysis has become increasingly important, both within a study, and to allow meaningful inter-study comparisons. The nPYc-Toolbox provides software for the import, pre-processing, QC and visualization of metabolic phenotyping datasets, either interactively, or in automated pipelines. AVAILABILITY AND IMPLEMENTATION The nPYc-Toolbox is implemented in Python, and is freely available from the Python package index https://pypi.org/project/nPYc/, source is available at https://github.com/phenomecentre/nPYc-Toolbox. Full documentation can be found at http://npyc-toolbox.readthedocs.io/ and exemplar datasets and tutorials at https://github.com/phenomecentre/nPYc-toolbox-tutorials.
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Affiliation(s)
- Caroline J Sands
- National Phenome Centre and Imperial Clinical Phenotyping Centre, Department of Surgery & Cancer, Imperial College London, London, UK
| | - Arnaud M Wolfer
- National Phenome Centre and Imperial Clinical Phenotyping Centre, Department of Surgery & Cancer, Imperial College London, London, UK
| | - Gonçalo D S Correia
- National Phenome Centre and Imperial Clinical Phenotyping Centre, Department of Surgery & Cancer, Imperial College London, London, UK
| | - Noureddin Sadawi
- Division of Integrative Systems Medicine and Digestive Diseases, Department of Surgery & Cancer, Imperial College London, South Kensington, London, UK
| | - Arfan Ahmed
- National Phenome Centre and Imperial Clinical Phenotyping Centre, Department of Surgery & Cancer, Imperial College London, London, UK
| | - Beatriz Jiménez
- National Phenome Centre and Imperial Clinical Phenotyping Centre, Department of Surgery & Cancer, Imperial College London, London, UK
- Division of Integrative Systems Medicine and Digestive Diseases, Department of Surgery & Cancer, Imperial College London, South Kensington, London, UK
| | - Matthew R Lewis
- National Phenome Centre and Imperial Clinical Phenotyping Centre, Department of Surgery & Cancer, Imperial College London, London, UK
- Division of Integrative Systems Medicine and Digestive Diseases, Department of Surgery & Cancer, Imperial College London, South Kensington, London, UK
| | - Robert C Glen
- Division of Integrative Systems Medicine and Digestive Diseases, Department of Surgery & Cancer, Imperial College London, South Kensington, London, UK
| | - Jeremy K Nicholson
- National Phenome Centre and Imperial Clinical Phenotyping Centre, Department of Surgery & Cancer, Imperial College London, London, UK
- Division of Integrative Systems Medicine and Digestive Diseases, Department of Surgery & Cancer, Imperial College London, South Kensington, London, UK
| | - Jake T M Pearce
- National Phenome Centre and Imperial Clinical Phenotyping Centre, Department of Surgery & Cancer, Imperial College London, London, UK
- Division of Integrative Systems Medicine and Digestive Diseases, Department of Surgery & Cancer, Imperial College London, South Kensington, London, UK
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28
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Maya C, Pérez M, Velásquez G, Barrios JA, Román A, Jiménez B. Quick incubation process to determine inactivation of Ascaris and Toxocara eggs. Water Sci Technol 2019; 80:2328-2337. [PMID: 32245924 DOI: 10.2166/wst.2020.062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Helminth eggs are among the most important biological contaminants in environmental engineering. They pose a significant health risk associated with poor sanitation, the use of contaminated water for irrigation, and the disposal of excreta or sludge to land. Helminths are parasitic worms transmitted to humans via their eggs, which is the infective stage of their life cycle. They are therefore relevant to public health and environmental fields due to their low infectious dose, their persistence in the environment (up to several years), and their high resistance to conventional disinfection processes. The evaluation of the efficiency of any process of inactivation, through the determination of the viability of these parasites, is fundamental, but the traditional incubation technique requires 20 days to determine both the viability and the infectivity of nematode eggs. However, the present study found that, using an inactivation process at a temperature of 60 °C for 1 hour and incubation at 28 °C and 34 °C, the absence of division of the nucleus of eggs of species from two genera, Ascaris lumbricoides and Toxocara canis, showed them to be inactivated following only 48 hours of incubation. Similar inactivation results were observed using an automatic system as long as the eggs were inactivated. The minimum time required to evaluate the inactivation of nematode eggs through the incubation technique was 48 hours.
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29
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Marqués P, Kamitz A, Bartolomé A, Burillo J, Martínez H, Jiménez B, Fernández-Rhodes M, Guillén C, Benito M. Essential role of glucokinase in the protection of pancreatic β cells to the glucose energetic status. Cell Death Discov 2019; 5:138. [PMID: 31583121 PMCID: PMC6769003 DOI: 10.1038/s41420-019-0219-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 08/30/2019] [Accepted: 09/04/2019] [Indexed: 01/14/2023] Open
Abstract
Energy sensing is indispensable to balance anabolic and catabolic processes for the maintenance of cell viability. Pancreatic β cells are especially relevant because of their involvement in the coordination of insulin secretion when glucose concentration arises in the local milieu. In this work, we uncover the increased susceptibility of pancreatic β cells to cell death in response to different energy stressors. Upon glucose decline, from 25 to 5 mM, caused by stimulation with either 2-deoxyglucose or metformin, only pancreatic β cells showed an increase in cell death. Very interestingly, when we transfected either mouse insulinoma cell or human embryo kidney cells with a phospho-mutant form of B cell lymphoma 2 associated agonist of cell death at serine 155 (BAD S155D), an increase in the pro-survival factor B cell lymphoma 2 was detected in pancreatic β cells and not in human embryonic kidney cells in the presence of the energetic stressors. This data suggests that the protective capacity of this mutant form is only present in cells that present glucokinase. In contrast, upon hyperactivation of mechanistic target of rapamycin complex 1 signaling by knocking-down tuberous sclerosis complex protein, we observed increased susceptibility to cell death in response to energy stress in both pancreatic and non-pancreatic β cells. Therefore, mechanistic target of rapamycin complex 1 signaling presents a dual effect on cell viability. On the one hand, a chronic inhibition of mechanistic target of rapamycin complex 1 activity in response to the energy status is deleterious for pancreatic β cells, being attenuated by the overexpression of B cell lymphoma 2 associated agonist of cell death S155D. On the other hand, mechanistic target of rapamycin complex 1 hyperactivity provokes a susceptibility to energetic stress-induced cell death. Taken together, these results may open potential implications for the use of glucokinase activators or mechanistic target of rapamycin complex 1 modulators for the maintenance of pancreatic β cells for longer periods of time avoiding its loss in different pathologies such as type 2 diabetes mellitus.
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Affiliation(s)
| | | | | | | | | | | | | | - Carlos Guillén
- 1Complutense University, Madrid, Spain.,3Centro de Investigación Biomédica en Red (CIBER) de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Madrid, Spain
| | - Manuel Benito
- 1Complutense University, Madrid, Spain.,3Centro de Investigación Biomédica en Red (CIBER) de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Madrid, Spain
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30
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Whiley L, Chekmeneva E, Berry DJ, Jiménez B, Yuen AHY, Salam A, Hussain H, Witt M, Takats Z, Nicholson J, Lewis MR. Systematic Isolation and Structure Elucidation of Urinary Metabolites Optimized for the Analytical-Scale Molecular Profiling Laboratory. Anal Chem 2019; 91:8873-8882. [PMID: 31188566 PMCID: PMC6666900 DOI: 10.1021/acs.analchem.9b00241] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
Annotation
and identification of metabolite biomarkers is critical
for their biological interpretation in metabolic phenotyping studies,
presenting a significant bottleneck in the successful implementation
of untargeted metabolomics. Here, a systematic multistep protocol
was developed for the purification and de novo structural elucidation
of urinary metabolites. The protocol is most suited for instances
where structure elucidation and metabolite annotation are critical
for the downstream biological interpretation of metabolic phenotyping
studies. First, a bulk urine pool was desalted using ion-exchange
resins enabling large-scale fractionation using precise iterations
of analytical scale chromatography. Primary urine fractions were collected
and assembled into a “fraction bank” suitable for long-term
laboratory storage. Secondary and tertiary fractionations exploited
differences in selectivity across a range of reversed-phase chemistries,
achieving the purification of metabolites of interest yielding an
amount of material suitable for chemical characterization. To exemplify
the application of the systematic workflow in a diverse set of cases,
four metabolites with a range of physicochemical properties were selected
and purified from urine and subjected to chemical formula and structure
elucidation by respective magnetic resonance mass spectrometry (MRMS)
and NMR analyses. Their structures were fully assigned as tetrahydropentoxyline,
indole-3-acetic-acid-O-glucuronide, p-cresol glucuronide, and pregnanediol-3-glucuronide. Unused effluent
was collected, dried, and returned to the fraction bank, demonstrating
the viability of the system for repeat use in metabolite annotation
with a high degree of efficiency.
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Affiliation(s)
- Luke Whiley
- The MRC-NIHR National Phenome Centre and Imperial BRC Clinical Phenotyping Centre , Imperial College London , London , W12 0NN , United Kingdom.,UK Dementia Research Institute , Imperial College London, Hammersmith Hospital , Burlington Danes Building , London , W12 0NN , United Kingdom
| | - Elena Chekmeneva
- The MRC-NIHR National Phenome Centre and Imperial BRC Clinical Phenotyping Centre , Imperial College London , London , W12 0NN , United Kingdom
| | - David J Berry
- The MRC-NIHR National Phenome Centre and Imperial BRC Clinical Phenotyping Centre , Imperial College London , London , W12 0NN , United Kingdom
| | - Beatriz Jiménez
- The MRC-NIHR National Phenome Centre and Imperial BRC Clinical Phenotyping Centre , Imperial College London , London , W12 0NN , United Kingdom
| | - Ada H Y Yuen
- The MRC-NIHR National Phenome Centre and Imperial BRC Clinical Phenotyping Centre , Imperial College London , London , W12 0NN , United Kingdom
| | - Ash Salam
- The MRC-NIHR National Phenome Centre and Imperial BRC Clinical Phenotyping Centre , Imperial College London , London , W12 0NN , United Kingdom
| | - Humma Hussain
- The MRC-NIHR National Phenome Centre and Imperial BRC Clinical Phenotyping Centre , Imperial College London , London , W12 0NN , United Kingdom
| | - Matthias Witt
- Bruker Daltonik GmbH , MRMS Solutions , 28359 Bremen , Germany
| | - Zoltan Takats
- The MRC-NIHR National Phenome Centre and Imperial BRC Clinical Phenotyping Centre , Imperial College London , London , W12 0NN , United Kingdom
| | - Jeremy Nicholson
- The MRC-NIHR National Phenome Centre and Imperial BRC Clinical Phenotyping Centre , Imperial College London , London , W12 0NN , United Kingdom
| | - Matthew R Lewis
- The MRC-NIHR National Phenome Centre and Imperial BRC Clinical Phenotyping Centre , Imperial College London , London , W12 0NN , United Kingdom
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Harbaum L, Ghataorhe P, Wharton J, Jiménez B, Howard LSG, Gibbs JSR, Nicholson JK, Rhodes CJ, Wilkins MR. Reduced plasma levels of small HDL particles transporting fibrinolytic proteins in pulmonary arterial hypertension. Thorax 2019; 74:380-389. [PMID: 30478197 PMCID: PMC6475111 DOI: 10.1136/thoraxjnl-2018-212144] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 10/28/2018] [Accepted: 11/12/2018] [Indexed: 11/03/2022]
Abstract
BACKGROUND Aberrant lipoprotein metabolism has been implicated in experimental pulmonary hypertension, but the relevance to patients with pulmonary arterial hypertension (PAH) is inconclusive. OBJECTIVE To investigate the relationship between circulating lipoprotein subclasses and survival in patients with PAH. METHODS Using nuclear magnetic resonance spectroscopy, 105 discrete lipoproteins were measured in plasma samples from two cohorts of patients with idiopathic or heritable PAH. Data from 1124 plasma proteins were used to identify proteins linked to lipoprotein subclasses. The physical presence of proteins was confirmed in plasma lipoprotein subfractions separated by ultracentrifugation. RESULTS Plasma levels of three lipoproteins from the small high-density lipoprotein (HDL) subclass, termed HDL-4, were inversely related to survival in both the discovery (n=127) and validation (n=77) cohorts, independent of exercise capacity, comorbidities, treatment, N-terminal probrain natriuretic peptide, C reactive protein and the principal lipoprotein classes. The small HDL subclass rich in apolipoprotein A-2 content (HDL-4-Apo A-2) exhibited the most significant association with survival. None of the other lipoprotein classes, including principal lipoprotein classes HDL and low-density lipoprotein cholesterol, were prognostic. Three out of nine proteins identified to associate with HDL-4-Apo A-2 are involved in the regulation of fibrinolysis, namely, the plasmin regulator, alpha-2-antiplasmin, and two major components of the kallikrein-kinin pathway (coagulation factor XI and prekallikrein), and their physical presence in the HDL-4 subfraction was confirmed. CONCLUSION Reduced plasma levels of small HDL particles transporting fibrinolytic proteins are associated with poor outcomes in patients with idiopathic and heritable PAH.
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Affiliation(s)
- Lars Harbaum
- Department of Medicine, Imperial College London, London, UK
| | | | - John Wharton
- Department of Medicine, Imperial College London, London, UK
| | - Beatriz Jiménez
- Imperial Clinical Phenome Centre, Department of Surgery and Cancer, Imperial College London, London, UK
| | - Luke S G Howard
- National Heart and Lung Institute, Imperial College London, London, UK
- National Pulmonary Hypertension Service, Imperial College Healthcare Trust NHS, London, UK
| | - J Simon R Gibbs
- National Heart and Lung Institute, Imperial College London, London, UK
- National Pulmonary Hypertension Service, Imperial College Healthcare Trust NHS, London, UK
| | - Jeremy K Nicholson
- Division of Computational Systems Medicine, Department of Surgery and Cancer, and Centre for Digestive and Gut Health, Imperial College London, London, UK
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Barberán M M, Campusano M C, Trincado M P, Oviedo G S, Brantes G S, Sapunar Z J, Canessa J, Cid P, Escobar F, Eugenin D, Florenzano P, Gajardo H, González G, Illanes F, Jiménez B, Martínez C, Miranda E, Rivera S, Salman P. [Guidelines of the Chilean Endocrinology Society for the correct clinical use of bone densitometry]. Rev Med Chil 2019; 146:1471-1480. [PMID: 30848752 DOI: 10.4067/s0034-98872018001201471] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 12/05/2018] [Indexed: 11/17/2022]
Abstract
Osteoporosis is a silent and frequent disease, which increases fracture risk. Approximately half of women and one of five men over 50 years old will suffer an osteoporotic fracture throughout their lives. Dual-energy x-ray absorptiometry (DXA) allows a real bone mineral density (BMD) measurement in different parts of the skeleton and is considered the "gold standard" for quantifying osteoporosis with high accuracy and precision. The Board of the Chilean Society of Endocrinology and Diabetes (SOCHED) required from the Bone Disease Study Group to develop a consensus about the "Correct use of bone densitometry in clinical practice in Chilean population". Therefore, we elaborated 25 questions which addressed key aspects about the indications for a DXA scan, and the details of how to perform and report this test. Since some of the evidence obtained was of low quality or inconclusive, we decided to create a multidisciplinary group of national experts in osteoporosis to develop a consensus in this subject. The group consisted of 22 physicians including endocrinologists, gynecologists, geriatricians, radiologists, rheumatologists and nuclear medicine specialists. Using the Delphi methodology to analyze previously agreed questions, we elaborated statements that were evaluated by the experts who expressed their degree of agreement. The final report of this consensus was approved by the SOCHED board.
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Affiliation(s)
| | | | | | | | | | | | | | - Pía Cid
- Clínica Universidad de los Andes, Santiago, Chile
| | | | | | | | | | | | | | | | | | | | | | - Patricio Salman
- Departamento de Medicina Interna, Facultad de Medicina, Universidad de Concepción, Concepción, Chile
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Bartalini A, Muñoz-Arnanz J, Marsili L, Mazzariol S, Fossi MC, Jiménez B. Evaluation of PCDD/Fs, dioxin-like PCBs and PBDEs in sperm whales from the Mediterranean Sea. Sci Total Environ 2019; 653:1417-1425. [PMID: 30759580 DOI: 10.1016/j.scitotenv.2018.10.436] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 10/31/2018] [Accepted: 10/31/2018] [Indexed: 06/09/2023]
Abstract
Numerous studies to date have reported concentrations of Persistent Organic Pollutants (POPs) in different marine mammal species worldwide. Yet data on sperm whales are scarce from rich and unique biodiverse areas such as the Mediterranean Sea. This work aimed to assess levels of dioxin-like polychlorinated biphenyls (dl-PCBs), polybrominated diphenyl ethers (PBDEs), and polychlorodibenzo-p-dioxins and furans (PCDD/Fs) in blubber of sperm whales stranded along the Italian coast between 2008 and 2016. POP mean concentrations (dl-PCBs: 6410 ng/g l.w.; PBDEs: 612 ng/g l.w.; PCDD/Fs: 57.8 pg/g l.w.) were mostly in line with what has been previously reported on the same species in the Mediterranean environment and tended to be higher than those reported from other geographical regions. The relative abundance followed the order dl-PCBs > PBDEs ≫ PCDD/Fs. Interestingly, the non-ortho dl-PCB pattern (126 > 169 > 77) was similar to that described in other studies worldwide and different from what is described in its main prey. This could be linked to particular metabolic activities in sperm whales against these highly toxic contaminants. Total TEQs ranged from 275 to 987 pg/g l.w. and showed the pattern Σnon-ortho-dl-PCBs > Σortho-dl-PCBs > PCDDs > PCDFs, with PCBs' contribution about 96%. These findings highlight the high abundance of PCBs still found in the Mediterranean environment despite having been banned for decades. All sperm whales analyzed in this study surpassed the threshold of 210 pg WHO-TEQ/g l.w. proposed as starting point of immunosuppression in harbour seals; a level of contamination that may have contributed to an impairment of their immune system.
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Affiliation(s)
- A Bartalini
- Department of Environmental, Earth and Physical Sciences, University of Siena, Via Mattioli 4, Siena, Italy
| | - J Muñoz-Arnanz
- Department of Instrumental Analysis and Environmental Chemistry, Institute of Organic Chemistry, CSIC. Juan de la Cierva, 3, 28006 Madrid, Spain.
| | - L Marsili
- Department of Environmental, Earth and Physical Sciences, University of Siena, Via Mattioli 4, Siena, Italy
| | - S Mazzariol
- Department of Public Health, Comparative Pathology and Veterinary Hygiene, University of Padova, Viale dell'Università 16, 35020 Legnaro, PD, Italy
| | - M C Fossi
- Department of Environmental, Earth and Physical Sciences, University of Siena, Via Mattioli 4, Siena, Italy
| | - B Jiménez
- Department of Instrumental Analysis and Environmental Chemistry, Institute of Organic Chemistry, CSIC. Juan de la Cierva, 3, 28006 Madrid, Spain
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Muñoz-Arnanz J, Chirife AD, Galletti Vernazzani B, Cabrera E, Sironi M, Millán J, Attard CRM, Jiménez B. First assessment of persistent organic pollutant contamination in blubber of Chilean blue whales from Isla de Chiloé, southern Chile. Sci Total Environ 2019; 650:1521-1528. [PMID: 30308837 DOI: 10.1016/j.scitotenv.2018.09.070] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 09/04/2018] [Accepted: 09/05/2018] [Indexed: 06/08/2023]
Abstract
Persistent organic pollutants (POPs) were assessed for the first time in blue whales from the South Pacific Ocean. Concentrations of polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), hexachlorobenzene (HCB) and dichlorodiphenyltrichloroethane and its main metabolites (DDTs), were determined in 40 blubber samples from 36 free-ranging individuals and one stranded, dead animal along the coast of southern Chile between 2011 and 2013. PCBs were the most abundant pollutants (2.97-975 ng/g l.w.), followed by DDTs (3.50-537 ng/g l.w.), HCB (nd-77.5 ng/g l.w.) and PBDEs (nd-33.4 ng/g l.w). There was evidence of differences between sexes, with lower loads in females potentially due to pollutants passing to calves. POP concentrations were higher in specimens sampled in 2013; yet, between-year differences were only statistically significant for HCB and PBDEs. Lower chlorinated (penta > tetra > tri) and brominated (tetra > tri) congeners were the most prevalent among PCBs and PBDEs, respectively, mostly in agreement with findings previously reported in blue and other baleen whales. The present study provides evidence of lower levels of contamination by POPs in eastern South Pacific blue whales in comparison to those reported for the Northern Hemisphere.
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Affiliation(s)
- J Muñoz-Arnanz
- Department of Instrumental Analysis and Environmental Chemistry, Institute of Organic Chemistry, (IQOG-CSIC), Juan de la Cierva 3, Madrid, Spain.
| | - A D Chirife
- Facultad de Ciencias de la Vida, Universidad Andres Bello, República 252, Santiago, Chile
| | - B Galletti Vernazzani
- Centro de Conservación Cetacea (CCC), Casilla 19178 Correo Alonso de Cordoba, Santiago, Chile
| | - E Cabrera
- Centro de Conservación Cetacea (CCC), Casilla 19178 Correo Alonso de Cordoba, Santiago, Chile
| | - M Sironi
- Instituto de Conservación de Ballenas, O'Higgins 4380, 1429 Buenos Aires, Argentina
| | - J Millán
- Facultad de Ciencias de la Vida, Universidad Andres Bello, República 252, Santiago, Chile
| | - C R M Attard
- Molecular Ecology Lab, College of Science and Engineering, Flinders University, GPO Box 2100, Adelaide, South Australia 5001, Australia; Cetacean Ecology, Behaviour and Evolution Lab, College of Science and Engineering, Flinders University, GPO Box 2100, Adelaide, South Australia 5001, Australia
| | - B Jiménez
- Department of Instrumental Analysis and Environmental Chemistry, Institute of Organic Chemistry, (IQOG-CSIC), Juan de la Cierva 3, Madrid, Spain
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Jiménez B, Holmes E, Heude C, Tolson RF, Harvey N, Lodge SL, Chetwynd AJ, Cannet C, Fang F, Pearce JTM, Lewis MR, Viant MR, Lindon JC, Spraul M, Schäfer H, Nicholson JK. Quantitative Lipoprotein Subclass and Low Molecular Weight Metabolite Analysis in Human Serum and Plasma by 1H NMR Spectroscopy in a Multilaboratory Trial. Anal Chem 2018; 90:11962-11971. [PMID: 30211542 DOI: 10.1021/acs.analchem.8b02412] [Citation(s) in RCA: 143] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
We report an extensive 600 MHz NMR trial of quantitative lipoprotein and small-molecule measurements in human blood serum and plasma. Five centers with eleven 600 MHz NMR spectrometers were used to analyze 98 samples including 20 quality controls (QCs), 37 commercially sourced, paired serum and plasma samples, and two National Institute of Science and Technology (NIST) reference material 1951c replicates. Samples were analyzed using rigorous protocols for sample preparation and experimental acquisition. A commercial lipoprotein subclass analysis was used to quantify 105 lipoprotein subclasses and 24 low molecular weight metabolites from the NMR spectra. For all spectrometers, the instrument specific variance in measuring internal QCs was lower than the percentage described by the National Cholesterol Education Program (NCEP) criteria for lipid testing [triglycerides <2.7%; cholesterol <2.8%; low-density lipoprotein (LDL) cholesterol <2.8%; high-density lipoprotein (HDL) cholesterol <2.3%], showing exceptional reproducibility for direct quantitation of lipoproteins in both matrixes. The average relative standard deviations (RSDs) for the 105 lipoprotein parameters in the 11 instruments were 4.6% and 3.9% for the two NIST samples, whereas they were 38% and 40% for the 37 commercially sourced plasmas and sera, respectively, showing negligible analytical compared to biological variation. The coefficient of variance (CV) obtained for the quantification of the small molecules across the 11 spectrometers was below 15% for 20 out of the 24 metabolites analyzed. This study provides further evidence of the suitability of NMR for high-throughput lipoprotein subcomponent analysis and small-molecule quantitation with the exceptional required reproducibility for clinical and other regulatory settings.
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Affiliation(s)
- Beatriz Jiménez
- The Imperial Clinical Phenotyping Centre, Division of Integrative Systems Medicine and Digestive Disease, Department of Surgery and Cancer , QEQM Building, Saint Mary's Hospital , London W2 1NY , United Kingdom
| | | | - Clement Heude
- Phenome Centre Birmingham , University of Birmingham , Edgbaston, Birmingham B15 2TT , United Kingdom
| | | | | | - Samantha L Lodge
- The Imperial Clinical Phenotyping Centre, Division of Integrative Systems Medicine and Digestive Disease, Department of Surgery and Cancer , QEQM Building, Saint Mary's Hospital , London W2 1NY , United Kingdom
| | - Andrew J Chetwynd
- Phenome Centre Birmingham , University of Birmingham , Edgbaston, Birmingham B15 2TT , United Kingdom
| | - Claire Cannet
- Bruker Biospin GmbH , Silberstreifen, 76287 Rheinstetten , Germany
| | - Fang Fang
- Bruker Biospin GmbH , Silberstreifen, 76287 Rheinstetten , Germany
| | - Jake T M Pearce
- The Imperial Clinical Phenotyping Centre, Division of Integrative Systems Medicine and Digestive Disease, Department of Surgery and Cancer , QEQM Building, Saint Mary's Hospital , London W2 1NY , United Kingdom
| | - Matthew R Lewis
- The Imperial Clinical Phenotyping Centre, Division of Integrative Systems Medicine and Digestive Disease, Department of Surgery and Cancer , QEQM Building, Saint Mary's Hospital , London W2 1NY , United Kingdom
| | - Mark R Viant
- Phenome Centre Birmingham , University of Birmingham , Edgbaston, Birmingham B15 2TT , United Kingdom
| | | | - Manfred Spraul
- Bruker Biospin GmbH , Silberstreifen, 76287 Rheinstetten , Germany
| | - Hartmut Schäfer
- Bruker Biospin GmbH , Silberstreifen, 76287 Rheinstetten , Germany
| | - Jeremy K Nicholson
- The Imperial Clinical Phenotyping Centre, Division of Integrative Systems Medicine and Digestive Disease, Department of Surgery and Cancer , QEQM Building, Saint Mary's Hospital , London W2 1NY , United Kingdom
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Bray R, Cacciatore S, Jiménez B, Cartwright R, Digesu A, Fernando R, Holmes E, Nicholson JK, Bennett PR, MacIntyre DA, Khullar V. Urinary Metabolic Phenotyping of Women with Lower Urinary Tract Symptoms. J Proteome Res 2017; 16:4208-4216. [PMID: 28937771 DOI: 10.1021/acs.jproteome.7b00568] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Lower urinary tract symptoms (LUTS), including urinary incontinence, urgency and nocturia, affect approximately half of women worldwide. Current diagnostic methods for LUTS are invasive and costly, while available treatments are limited by side effects leading to poor patient compliance. In this study, we aimed to identify urine metabolic signatures associated with LUTS using proton nuclear magnetic resonance (1H NMR) spectroscopy. A total of 214 urine samples were collected from women attending tertiary urogynecology clinics (cases; n = 176) and healthy control women attending general gynecology clinics (n = 36). Despite high variation in the urine metabolome across the cohort, associations between urine metabolic profiles and BMI, parity, overactive bladder syndrome, frequency, straining, and bladder storage were identified using KODAMA (knowledge discovery by accuracy maximization). Four distinct urinary metabotypes were identified, one of which was associated with increased urinary frequency and low BMI. Urine from these patients was characterized by increased levels of isoleucine and decreased levels of hippurate. Our study suggests that metabolic profiling of urine samples from LUTS patients offers the potential to identify differences in underlying etiology, which may permit stratification of patient populations and the design of more personalized treatment strategies.
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Affiliation(s)
- Rhiannon Bray
- Department of Urogynaecology, St. Mary's Hospital, Imperial College Healthcare NHS Trust , London W2 1NY, U.K
| | | | - Beatriz Jiménez
- Imperial Clinical Phenotyping Centre, QEQM Building, Imperial College London, Saint Mary's Hospital , London W21NY, U.K
| | - Rufus Cartwright
- Department of Urogynaecology, St. Mary's Hospital, Imperial College Healthcare NHS Trust , London W2 1NY, U.K
| | - Alex Digesu
- Department of Urogynaecology, St. Mary's Hospital, Imperial College Healthcare NHS Trust , London W2 1NY, U.K
| | - Ruwan Fernando
- Department of Urogynaecology, St. Mary's Hospital, Imperial College Healthcare NHS Trust , London W2 1NY, U.K
| | | | | | - Phillip R Bennett
- Queen Charlotte's Hospital, Imperial College Healthcare NHS Trust , London W12 0HS, U.K
| | | | - Vik Khullar
- Department of Urogynaecology, St. Mary's Hospital, Imperial College Healthcare NHS Trust , London W2 1NY, U.K
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Antcliffe D, Jiménez B, Veselkov K, Holmes E, Gordon AC. Metabolic Profiling in Patients with Pneumonia on Intensive Care. EBioMedicine 2017; 18:244-253. [PMID: 28373096 PMCID: PMC5405179 DOI: 10.1016/j.ebiom.2017.03.034] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 03/24/2017] [Accepted: 03/24/2017] [Indexed: 11/19/2022] Open
Abstract
Clinical features and investigations lack predictive value when diagnosing pneumonia, especially when patients are ventilated and when patients develop ventilator associated pneumonia (VAP). New tools to aid diagnosis are important to improve outcomes. This pilot study examines the potential for metabolic profiling to aid the diagnosis in critical care. In this prospective observational study ventilated patients with brain injuries or pneumonia were recruited in the intensive care unit and serum samples were collected soon after the start of ventilation. Metabolic profiles were produced using 1D 1H NMR spectra. Metabolic data were compared using multivariate statistical techniques including Principal Component Analysis (PCA) and Orthogonal Partial Least Squares Discriminant Analysis (OPLS-DA). We recruited 15 patients with pneumonia and 26 with brain injuries, seven of whom went on to develop VAP. Comparison of metabolic profiles using OPLS-DA differentiated those with pneumonia from those with brain injuries (R2Y = 0.91, Q2Y = 0.28, p = 0.02) and those with VAP from those without (R2Y = 0.94, Q2Y = 0.27, p = 0.05). Metabolites that differentiated patients with pneumonia included lipid species, amino acids and glycoproteins. Metabolic profiling shows promise to aid in the diagnosis of pneumonia in ventilated patients and may allow a more timely diagnosis and better use of antibiotics. Metabolic profiling of serum from ventilated patients shows potential to aid in the diagnosis of pneumonia and ventilator associated pneumonia. Lipid species were particularly important in the discrimination of pneumonia and ventilator associated pneumonia from those with brain injuries. Metabolites including glycoproteins, amino acids and phospholipids also aided in discrimination.
Pneumonia is a common problem in patients requiring breathing support in Intensive Care Units (ICU). When pneumonia develops patients take longer to get back to full health and in some cases may die. Current diagnostic tests are not always helpful. We measured an array of molecules, metabolites, in the blood of patients in ICU to compare those with pneumonia to those with brain injuries. We found that substances including lipids, amino acids and glycoproteins showed some ability to differentiate patients with pneumonia from other critically unwell patients. This technique, used with clinical data, may help improve the diagnosis of pneumonia.
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Affiliation(s)
- David Antcliffe
- Section of Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, UK
| | - Beatriz Jiménez
- Division of Computational and Systems Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, UK
| | - Kirill Veselkov
- Division of Computational and Systems Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, UK
| | - Elaine Holmes
- Division of Computational and Systems Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, UK
| | - Anthony C Gordon
- Section of Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, UK.
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Barrios J, Cano A, Becerril J, Jiménez B. Influence of solids on the removal of emerging pollutants in electrooxidation of municipal sludge with boron-doped diamond electrodes. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.07.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Hernández-Porras I, Schuhmacher AJ, Garcia-Medina R, Jiménez B, Cañamero M, de Martino A, Guerra C. K-Ras(V14I) -induced Noonan syndrome predisposes to tumour development in mice. J Pathol 2016; 239:206-17. [PMID: 27174785 DOI: 10.1002/path.4719] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 03/08/2016] [Accepted: 03/11/2016] [Indexed: 01/17/2023]
Abstract
The Noonan syndrome (NS) is an autosomal dominant genetic disorder characterized by short stature, craniofacial dysmorphism, and congenital heart defects. A significant proportion of NS patients may also develop myeloproliferative disorders (MPDs), including juvenile myelomonocytic leukaemia (JMML). Surprisingly, scarce information is available in relation to other tumour types in these patients. We have previously developed and characterized a knock-in mouse model that carries one of the most frequent KRAS-NS-related mutations, the K-Ras(V14I) substitution, which recapitulates most of the alterations described in NS patients, including MPDs. The K-Ras(V14I) mutation is a mild activating K-Ras protein; thus, we have used this model to study tumour susceptibility in comparison with mice expressing the classical K-Ras(G12V) oncogene. Interestingly, our studies have shown that these mice display a generalized tumour predisposition and not just MPDs. In fact, we have observed that the K-Ras(V14I) mutation is capable of cooperating with the p16Ink4a/p19Arf and Trp53 tumour suppressors, as well as with other risk factors such as pancreatitis, thereby leading to a higher cancer incidence. In conclusion, our results illustrate that the K-Ras(V14I) activating protein is able to induce cancer, although at a much lower level than the classical K-Ras(G12V) oncogene, and that it can be significantly modulated by both genetic and non-genetic events. Copyright © 2016 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
| | - Alberto J Schuhmacher
- Molecular Oncology, Centro Nacional de Investigaciones Oncológicas (CNIO), Madrid, Spain
| | - Raquel Garcia-Medina
- Molecular Oncology, Centro Nacional de Investigaciones Oncológicas (CNIO), Madrid, Spain
| | - Beatriz Jiménez
- Molecular Oncology, Centro Nacional de Investigaciones Oncológicas (CNIO), Madrid, Spain
| | - Marta Cañamero
- Biotechnology Programs, Centro Nacional de Investigaciones Oncológicas (CNIO), Madrid, Spain
| | - Alba de Martino
- Biotechnology Programs, Centro Nacional de Investigaciones Oncológicas (CNIO), Madrid, Spain
| | - Carmen Guerra
- Molecular Oncology, Centro Nacional de Investigaciones Oncológicas (CNIO), Madrid, Spain
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Jiménez B, Maya C, Velásquez G, Torner F, Arambula F, Barrios JA, Velasco M. Identification and quantification of pathogenic helminth eggs using a digital image system. Exp Parasitol 2016; 166:164-72. [PMID: 27113138 PMCID: PMC4918693 DOI: 10.1016/j.exppara.2016.04.016] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 04/14/2016] [Accepted: 04/21/2016] [Indexed: 11/22/2022]
Abstract
A system was developed to identify and quantify up to seven species of helminth eggs (Ascaris lumbricoides -fertile and unfertile eggs-, Trichuris trichiura, Toxocara canis, Taenia saginata, Hymenolepis nana, Hymenolepis diminuta, and Schistosoma mansoni) in wastewater using different image processing tools and pattern recognition algorithms. The system was developed in three stages. Version one was used to explore the viability of the concept of identifying helminth eggs through an image processing system, while versions 2 and 3 were used to improve its efficiency. The system development was based on the analysis of different properties of helminth eggs in order to discriminate them from other objects in samples processed using the conventional United States Environmental Protection Agency (US EPA) technique to quantify helminth eggs. The system was tested, in its three stages, considering two parameters: specificity (capacity to discriminate between species of helminth eggs and other objects) and sensitivity (capacity to correctly classify and identify the different species of helminth eggs). The final version showed a specificity of 99% while the sensitivity varied between 80 and 90%, depending on the total suspended solids content of the wastewater samples. To achieve such values in samples with total suspended solids (TSS) above 150 mg/L, it is recommended to dilute the concentrated sediment just before taking the images under the microscope. The system allows the helminth eggs most commonly found in wastewater to be reliably and uniformly detected and quantified. In addition, it provides the total number of eggs as well as the individual number by species, and for Ascaris lumbricoides it differentiates whether or not the egg is fertile. The system only requires basically trained technicians to prepare the samples, as for visual identification there is no need for highly trained personnel. The time required to analyze each image is less than a minute. This system could be used in central analytical laboratories providing a remote analysis service. The system identifies and quantifies seven species of helminth eggs. The system shows a specificity of 99% and a sensitivity between 80 and 90%. The time required to analyze each image is less than a minute. The system reduces the need for highly trained personnel for the identification of helminth eggs.
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Affiliation(s)
- B Jiménez
- Instituto de Ingeniería, UNAM, P.O. Box 70-186, México, D.F., 04510, Mexico.
| | - C Maya
- Instituto de Ingeniería, UNAM, P.O. Box 70-186, México, D.F., 04510, Mexico
| | - G Velásquez
- Centro de Ciencias Aplicadas y Desarrollo Tecnológico, UNAM, P.O. Box 70-186, México, D.F., 04510, Mexico
| | - F Torner
- Instituto de Ingeniería, UNAM, P.O. Box 70-186, México, D.F., 04510, Mexico
| | - F Arambula
- Centro de Ciencias Aplicadas y Desarrollo Tecnológico, UNAM, P.O. Box 70-186, México, D.F., 04510, Mexico
| | - J A Barrios
- Instituto de Ingeniería, UNAM, P.O. Box 70-186, México, D.F., 04510, Mexico
| | - M Velasco
- Instituto de Ingeniería, UNAM, P.O. Box 70-186, México, D.F., 04510, Mexico
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Bargiela-Iparraguirre J, Prado-Marchal L, Pajuelo-Lozano N, Jiménez B, Perona R, Sánchez-Pérez I. Mad2 and BubR1 modulates tumourigenesis and paclitaxel response in MKN45 gastric cancer cells. Cell Cycle 2015; 13:3590-601. [PMID: 25483095 DOI: 10.4161/15384101.2014.962952] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Aneuploidy and chromosomal instability (CIN) are common features of gastric cancer (GC), but their contribution to carcinogenesis and antitumour therapy response is still poorly understood. Failures in the mitotic checkpoint induced by changes in expression levels of the spindle assembly checkpoint (SAC) proteins cause the missegregation of chromosomes in mitosis as well as aneuploidy. To evaluate the possible contribution of SAC to GC, we analyzed the expression levels of proteins of the mitotic checkpoint complex in a cohort of GC cell lines. We found that the central SAC proteins, Mad2 and BubR1, were the more prominently expressed members in disseminated GC cell lines. Silencing of Mad2 and BubR1 in MKN45 and ST2957 cells decreased their cell proliferation, migration and invasion abilities, indicating that Mad2 and BubR1 could contribute to cellular transformation and tumor progression in GC. We next evaluated whether silencing of SAC proteins could affect the response to microtubule poisons. We discovered that paclitaxel treatment increased cell survival in MKN45 cells interfered for Mad2 or BubR1 expression. However, apoptosis (assessed by caspase-3 activation, PARP proteolysis and levels of antiapoptotic Bcl 2-family members), the DNA damage response (assessed by H2Ax phosphorylation) and exit from mitosis (assessed by Cyclin B degradation and Cdk1 regulation) were activated equally between cells, independently of Mad2 or BubR1-protein levels. In contrast, we observed that the silencing of Mad2 or BubR1 in MKN45 cells showed the induction of a senescence-like phenotype accompanied by cell enlargement, increased senescence-associated β-galactosidase activity and increased IL-6 and IL-8 expression. In addition, the senescent phenotype is highly increased after treatment with PTX, indicating that senescence could prevent tumorigenesis in GC. In conclusion, the results presented here suggest that Mad2 and BubR1 could be used as prognostic markers of tumor progression and new pharmacological targets in the treatment for GC.
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Key Words
- BMC, bleomycin
- BubR1
- BubR1, budding uninhibited by benzimidazoles 1 homolog B protein (gene BUB1B)
- CDDP, cisplatin
- CIN, chromosome instability
- DDR, DNA damage response
- Mad2
- Mad2, mitotic arrest deficient-like-1 protein (gene Mad2L1)
- Monopolar Spindle kinase, MPS1
- PTX, paclitaxel
- SAC, spindle assembly checkpoint
- SASP, senescence associate secretory phenotype
- apoptosis
- gastric cancer
- mitosis
- paclitaxel
- senescence
- γH2AX, phosphorylated H2AX
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Mateo J, Ascaso FJ, Jiménez B, Cristóbal JA. Jugular venous thrombosis secondary to idiopathic myelofibrosis: a rare cause of bilateral optic disc swelling. Clin Exp Optom 2015; 98:286-9. [PMID: 25594570 DOI: 10.1111/cxo.12241] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Revised: 09/28/2014] [Accepted: 10/10/2014] [Indexed: 11/28/2022] Open
Affiliation(s)
- Javier Mateo
- Department of Ophthalmology, Lozano Blesa University Clinic Hospital, Zaragoza, Spain
| | - Francisco J Ascaso
- Department of Ophthalmology, Lozano Blesa University Clinic Hospital, Zaragoza, Spain.,Aragon Health Sciences Institute, Zaragoza, Spain
| | - Beatriz Jiménez
- Department of Ophthalmology, Ernest Lluch Hospital, Calatayud, Spain.
| | - José A Cristóbal
- Department of Ophthalmology, Lozano Blesa University Clinic Hospital, Zaragoza, Spain
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Tarazona J, Rodríguez C, Alonso E, Sáez M, González F, San Andrés M, Jiménez B, San Andrés M. Toxicokinetics of perfluorooctane sulfonate in birds under environmentally realistic exposure conditions and development of a kinetic predictive model. Toxicol Lett 2015; 232:363-8. [DOI: 10.1016/j.toxlet.2014.11.022] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 11/20/2014] [Accepted: 11/21/2014] [Indexed: 01/31/2023]
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Oropesa AL, Jiménez B, Gil MC, Osswald J, Fallola C, Pula HJ, Cuesta JM, Gómez L. Histological alterations in the structure of the testis in tench (Tinca tinca) after exposure to 17 alpha-ethynylestradiol. Environ Toxicol 2014; 29:1182-1192. [PMID: 23418101 DOI: 10.1002/tox.21850] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2012] [Revised: 01/04/2013] [Accepted: 01/06/2013] [Indexed: 06/01/2023]
Abstract
Environmental pollution with synthetic estrogens may pose a serious threat to reproduction of aquatic wildlife species. The current study describes the effects of 17α-ethynylestradiol (EE2 ) on the structure of the testis in tench (Tinca tinca). Adult male tench were exposed to sublethal doses of EE2 (50, 100, and 500 μg/Kg t.w.) under semistatic conditions for a period of 30 days. The condition factor (CF), testicular somatic index (TSI), and histology (including a morphometric analysis) of the testis were examined. No consistent differences were observed in the CF of EE2 -exposed tench when compared with nonexposed fish. A significant decrease in TSI could only be observed at a 50 μg/Kg t.w. EE2 dose (p < 0.05) when compared with the control group. The histopathology of the testis was associated with loss of normal tubular structure with increased doses of exposure, decrease of tubule number, degeneration in Sertoli and Leydig cells, increase in necrotic testicular cells including formation of syncytia structures and, finally, a high incidence of fish with early primary oocytes at 100 and 500 μg/Kg t.w. EE2 . These results indicate that long-term exposure to EE2 may produce clear negative effects on testicular structure in tench.
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Affiliation(s)
- A L Oropesa
- Toxicology Area, School of Veterinary Medicine, University of Extremadura, Cáceres, Spain
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van Drooge BL, Fontal M, Bravo N, Fernández P, Fernández MA, Muñoz-Arnanz J, Jiménez B, Grimalt JO. Seasonal and spatial variation of organic tracers for biomass burning in PM1 aerosols from highly insolated urban areas. Environ Sci Pollut Res Int 2014; 21:11661-11670. [PMID: 24477336 DOI: 10.1007/s11356-014-2545-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Accepted: 01/09/2014] [Indexed: 06/03/2023]
Abstract
PM1 aerosol characterization on organic tracers for biomass burning (levoglucosan and its isomers and dehydroabietic acid) was conducted within the AERTRANS project. PM1 filters (N = 90) were sampled from 2010 to 2012 in busy streets in the urban centre of Madrid and Barcelona (Spain) at ground-level and at roof sites. In both urban areas, biomass burning was not expected to be an important local emission source, but regional emissions from wildfires, residential heating or biomass removal may influence the air quality in the cities. Although both areas are under influence of high solar radiation, Madrid is situated in the centre of the Iberian Peninsula, while Barcelona is located at the Mediterranean Coast and under influence of marine atmospheres. Two extraction methods were applied, i.e. Soxhlet and ASE, which showed equivalent results after GC-MS analyses. The ambient air concentrations of the organic tracers for biomass burning increased by an order of magnitude at both sites during winter compared to summer. An exception was observed during a PM event in summer 2012, when the atmosphere in Barcelona was directly affected by regional wildfire smoke and levels were four times higher as those observed in winter. Overall, there was little variation between the street and roof sites in both cities, suggesting that regional biomass burning sources influence the urban areas after atmospheric transport. Despite the different atmospheric characteristics in terms of air relative humidity, Madrid and Barcelona exhibit very similar composition and concentrations of biomass burning organic tracers. Nevertheless, levoglucosan and its isomers seem to be more suitable for source apportionment purposes than dehydroabietic acid. In both urban areas, biomass burning contributions to PM were generally low (2 %) in summer, except on the day when wildfire smoke arrive to the urban area. In the colder periods the contribution increase to around 30 %, indicating that regional biomass burning has a substantial influence on the urban air quality.
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Affiliation(s)
- B L van Drooge
- Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDÆA), CSIC, Jordi Girona, 18, 08034, Barcelona, Spain,
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46
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Dona AC, Jiménez B, Schäfer H, Humpfer E, Spraul M, Lewis MR, Pearce JTM, Holmes E, Lindon JC, Nicholson JK. Precision high-throughput proton NMR spectroscopy of human urine, serum, and plasma for large-scale metabolic phenotyping. Anal Chem 2014; 86:9887-94. [PMID: 25180432 DOI: 10.1021/ac5025039] [Citation(s) in RCA: 338] [Impact Index Per Article: 33.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Proton nuclear magnetic resonance (NMR)-based metabolic phenotyping of urine and blood plasma/serum samples provides important prognostic and diagnostic information and permits monitoring of disease progression in an objective manner. Much effort has been made in recent years to develop NMR instrumentation and technology to allow the acquisition of data in an effective, reproducible, and high-throughput approach that allows the study of general population samples from epidemiological collections for biomarkers of disease risk. The challenge remains to develop highly reproducible methods and standardized protocols that minimize technical or experimental bias, allowing realistic interlaboratory comparisons of subtle biomarker information. Here we present a detailed set of updated protocols that carefully consider major experimental conditions, including sample preparation, spectrometer parameters, NMR pulse sequences, throughput, reproducibility, quality control, and resolution. These results provide an experimental platform that facilitates NMR spectroscopy usage across different large cohorts of biofluid samples, enabling integration of global metabolic profiling that is a prerequisite for personalized healthcare.
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Affiliation(s)
- Anthony C Dona
- Division of Computational and Systems Medicine, Department of Surgery and Cancer, Imperial College London , Sir Alexander Fleming Building, South Kensington, London SW7 2AZ, United Kingdom
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Moran T, Wei J, Cobo M, Qian X, Domine M, Zou Z, Bover I, Wang L, Provencio M, Yu L, Chaib I, You C, Massuti B, Song Y, Vergnenegre A, Lu H, Lopez-Vivanco G, Hu W, Robinet G, Yan J, Insa A, Xu X, Majem M, Chen X, de Las Peñas R, Karachaliou N, Sala MA, Wu Q, Isla D, Zhou Y, Baize N, Zhang F, Garde J, Germonpre P, Rauh S, ALHusaini H, Sanchez-Ronco M, Drozdowskyj A, Sanchez JJ, Camps C, Liu B, Rosell R, Colinet B, De Grève J, Germonpré P, Chen H, Chen X, Du J, Gao Y, Hu J, Hu W, Kong W, Li L, Li R, Li X, Liu B, Liu J, Lu H, Qian X, Ren W, Song Y, Wang L, Wei J, Wen L, Wu Q, Xiao X, Xu X, Yan J, Yang J, Yang M, Yang Y, Yin J, You C, Yu L, Yue X, Zhang F, Zhang J, Zhou Y, Zhu L, Zou Z, Baize N, Bombaron P, Chouaid C, Dansin E, Fournel P, Fraboulet G, Gervais R, Hominal S, Kahlout S, Lecaer H, Lena H, LeTreut J, Locher C, Molinier O, Monnet I, Oliviero G, Robinet G, Schoot R, Thomas P, Vergnènegre A, Berchem G, Rauh S, Al Husaini H, Aparisi F, Arriola E, Ballesteros I, Barneto I, Bernabé R, Blasco A, Bosch-Barrera J, Bover I, Calvo de Juan V, Camps C, Carcereny E, Catot S, Cobo M, De Las Peñas R, Dómine M, Felip E, García-Campelo MR, García-Girón C, García-Gómez R, Garcia-Sevila R, Garde J, Gasco A, Gil J, González-Larriba JL, Hernando-Polo S, Jantus E, Insa A, Isla D, Jiménez B, Lianes P, López-López R, López-Martín A, López-Vivanco G, Macias JA, Majem M, Marti-Ciriquian JL, Massuti B, Montoyo R, Morales-Espinosa D, Morán T, Moreno MA, Pallares C, Parera M, Pérez-Carrión R, Porta R, Provencio M, Reguart N, Rosell R, Rosillo F, Sala MA, Sanchez JM, Sullivan I, Terrasa J, Trigo JM, Valdivia J, Viñolas N, Viteri S, Botia-Castillo M, Mate JL, Perez-Cano M, Ramirez JL, Sanchez-Rodriguez B, Taron M, Tierno-Garcia M, Mijangos E, Ocaña J, Pereira E, Shao J, Sun X, O'Brate R. Two biomarker-directed randomized trials in European and Chinese patients with nonsmall-cell lung cancer: the BRCA1-RAP80 Expression Customization (BREC) studies. Ann Oncol 2014; 25:2147-2155. [PMID: 25164908 DOI: 10.1093/annonc/mdu389] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND In a Spanish Lung Cancer Group (SLCG) phase II trial, the combination of BRCA1 and receptor-associated protein 80 (RAP80) expression was significantly associated with outcome in Caucasian patients with nonsmall-cell lung cancer (NSCLC). The SLCG therefore undertook an industry-independent collaborative randomized phase III trial comparing nonselected cisplatin-based chemotherapy with therapy customized according to BRCA1/RAP80 expression. An analogous randomized phase II trial was carried out in China under the auspices of the SLCG to evaluate the effect of BRCA1/RAP80 expression in Asian patients. PATIENTS AND METHODS Eligibility criteria included stage IIIB-IV NSCLC and sufficient tumor specimen for molecular analysis. Randomization to the control or experimental arm was 1 : 1 in the SLCG trial and 1 : 3 in the Chinese trial. In both trials, patients in the control arm received docetaxel/cisplatin; in the experimental arm, patients with low RAP80 expression received gemcitabine/cisplatin, those with intermediate/high RAP80 expression and low/intermediate BRCA1 expression received docetaxel/cisplatin, and those with intermediate/high RAP80 expression and high BRCA1 expression received docetaxel alone. The primary end point was progression-free survival (PFS). RESULTS Two hundred and seventy-nine patients in the SLCG trial and 124 in the Chinese trial were assessable for PFS. PFS in the control and experimental arms in the SLCG trial was 5.49 and 4.38 months, respectively [log rank P = 0.07; hazard ratio (HR) 1.28; P = 0.03]. In the Chinese trial, PFS was 4.74 and 3.78 months, respectively (log rank P = 0.82; HR 0.95; P = 0.82). CONCLUSION Accrual was prematurely closed on the SLCG trial due to the absence of clinical benefit in the experimental over the control arm. However, the BREC studies provide proof of concept that an international, nonindustry, biomarker-directed trial is feasible. Thanks to the groundwork laid by these studies, we expect that ongoing further research on alternative biomarkers to elucidate DNA repair mechanisms will help define novel therapeutic approaches. TRIAL REGISTRATION NCT00617656/GECP-BREC and ChiCTR-TRC-12001860/BREC-CHINA.
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Affiliation(s)
- T Moran
- Catalan Institute of Oncology, Medical Oncology Service, Hospital Germans Trias i Pujol, Badalona, Spain
| | - J Wei
- The Comprehensive Cancer Centre, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - M Cobo
- Medical Oncology Service, Hospital Carlos Haya, Malaga
| | - X Qian
- The Comprehensive Cancer Centre, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - M Domine
- Medical Oncology Service, Fundacion Jimenez Diaz, Madrid
| | - Z Zou
- The Comprehensive Cancer Centre, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - I Bover
- Medical Oncology Service, Hospital Son Llatzer, Palma de Mallorca
| | - L Wang
- The Comprehensive Cancer Centre, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - M Provencio
- Medical Oncology Service, Hospital Puerta de Hierro, Madrid, Spain
| | - L Yu
- The Comprehensive Cancer Centre, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - I Chaib
- Catalan Institute of Oncology, Medical Oncology Service, Hospital Germans Trias i Pujol, Badalona, Spain
| | - C You
- Department of Oncology, Suqian General Hospital, Suqian, China
| | - B Massuti
- Medical Oncology Service, Hospital General de Alicante, Alicante, Spain
| | - Y Song
- Department of Pneumology, Jinling Hospital, Nanjing, China
| | - A Vergnenegre
- Service de Pathologie Respiratoire et d'Allergologie, CHU Limoges, Limoges, France
| | - H Lu
- Department of Pneumology, Taizhou General Hospital, Taizhou, China
| | | | - W Hu
- The Comprehensive Cancer Centre, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - G Robinet
- Service Pneumologie, CHU Brest, Brest, France
| | - J Yan
- The Comprehensive Cancer Centre, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - A Insa
- Medical Oncology Service, Hospital Clinico de Valencia, Valencia, Spain
| | - X Xu
- Department of Pneumology, Northern Jiangsu People's Hospital, Yangzhou, China
| | - M Majem
- Medical Oncology Service, Hospital Sant Pau, Barcelona, Spain
| | - X Chen
- Department of Oncology, Huaian General Hospital, Huaian, China
| | - R de Las Peñas
- Medical Oncology Service, Hospital Provincial de Castellon, Castellon, Spain
| | - N Karachaliou
- Translational Research Unit, Dr Rosell Oncology Institute, Quiron-Dexeus University Hospital, Barcelona
| | - M A Sala
- Medical Oncology Service, Hospital de Basurto, Bilbao, Spain
| | - Q Wu
- Department of Oncology, Yixin General Hospital, Yixin, China
| | - D Isla
- Medical Oncology Service, Hospital Lozano Blesa, Zaragoza, Spain
| | - Y Zhou
- Department of Oncology, Yixin General Hospital, Yixin, China
| | - N Baize
- Department de Pneumologie, CHU Angers, Angers, France
| | - F Zhang
- Department of Oncology, Maanshan General Hospital, Maanshan, China
| | - J Garde
- Medical Oncology Service, Hospital Arnau de Vilanova, Valencia, Spain
| | - P Germonpre
- Department of Pulmonary Medicine, Antwerp University Hospital, Edegem, Belgium
| | - S Rauh
- Department of Internal Medicine and Oncology, Centre Hospitalier Emile Mayrisch, Luxembourg, Luxembourg
| | - H ALHusaini
- Oncology Center, King Faisal Cancer Center, Riyadh, Saudi Arabia
| | - M Sanchez-Ronco
- Department of Health and Medicosocial Sciences, University of Alcala, Madrid
| | | | - J J Sanchez
- Department of Preventive Medicine, Autonomous University of Madrid, Madrid
| | - C Camps
- Medical Oncology Service, Hospital General de Valencia, Valencia
| | - B Liu
- The Comprehensive Cancer Centre, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - R Rosell
- Catalan Institute of Oncology, Cancer Biology and Precision Medicine Program, Hospital Germans Trias i Pujol, Badalona; MORe Foundation, Barcelona, Spain; Cancer Therapeutic Innovation Group, New York,USA.
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Oropesa AL, Jiménez B, Fallola C, Pula HJ, Cuesta JM, Gómez L. Histological alterations on the structure of the excretory renal system in tench (Tinca tinca) after exposure to 17-alpha-ethynylestradiol. Bull Environ Contam Toxicol 2013; 91:623-629. [PMID: 24042839 DOI: 10.1007/s00128-013-1088-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Accepted: 08/20/2013] [Indexed: 06/02/2023]
Abstract
This study describes the effects of 17-alpha-ethynylestradiol (EE2) on the structure of the excretory system of the kidney in tench. Adult male tench were exposed to sub-lethal doses of EE2 (50, 100 and 500 μg/kg b.w.) under semistatic conditions for a period of 30 days. The nephrosomatic index and histology (including a morphometric analysis) of the kidney were examined. Histopathological lesions in the kidney of exposed tench were: dilation of glomerular capillaries and increase in the area of the renal corpuscle, hyaline degeneration in the epithelial cells of the proximal tubules leading to necrotic changes, hemorrhages in the interstitial tissue and deposits of eosinophilic material. These lesions were observed with a greater degree of severity as the exposure doses were increased. These results indicate that long-term exposure to EE2 could produce clear negative effects on the excretory system of the kidney in tench and consequently on their physiological functions.
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Affiliation(s)
- A L Oropesa
- Toxicology Area, School of Veterinary Medicine, University of Extremadura, Avda. de la Universidad s/n, P.O. Box 643, 10003, Cáceres, Spain,
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Jiménez B, Pinilla I, Cristóbal JA, Mínguez E, Pérez D, Cruz N, Peiro C. [Intravitreal ranibizumab in the treatment of subretinal neovascularization in a case of punctate inner choroidopathy]. ACTA ACUST UNITED AC 2013; 89:130-2. [PMID: 24269388 DOI: 10.1016/j.oftal.2012.11.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2011] [Revised: 07/17/2012] [Accepted: 11/07/2012] [Indexed: 11/19/2022]
Abstract
CASE REPORT We report the case of a 28-year old woman suffering loss of visual acuity in her left eye, who presented an image suggestive of a subretinal neovascular membrane in her left eye, and bilateral retinal lesions compatible with punctate inner choroidopathy (PIC). She was treated with intravitreal ranibizumab obtaining excellent results. DISCUSSION The differential diagnosis must be made between PIC and the rest of "white dot syndromes" and the presumed ocular histoplasmosis syndrome (POHS). Antiangiogenic drugs may be a good alternative for the treatment of such diseases when they develop a subretinal neovascular membrane.
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Affiliation(s)
- B Jiménez
- Servicio de Oftalmología, Hospital Clínico Universitario Lozano Blesa, Zaragoza, España.
| | - I Pinilla
- Servicio de Oftalmología, Hospital Clínico Universitario Lozano Blesa, Zaragoza, España
| | - J A Cristóbal
- Servicio de Oftalmología, Hospital Clínico Universitario Lozano Blesa, Zaragoza, España
| | - E Mínguez
- Servicio de Oftalmología, Hospital Clínico Universitario Lozano Blesa, Zaragoza, España
| | - D Pérez
- Servicio de Oftalmología, Hospital Clínico Universitario Lozano Blesa, Zaragoza, España
| | - N Cruz
- Servicio de Oftalmología, Hospital Clínico Universitario Lozano Blesa, Zaragoza, España
| | - C Peiro
- Servicio de Oftalmología, Hospital Clínico Universitario Lozano Blesa, Zaragoza, España
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Jiménez B, Ascaso FJ, Cristóbal JA, López del Val J. Development of a prediction formula of Parkinson disease severity by optical coherence tomography. Mov Disord 2013; 29:68-74. [PMID: 24458320 DOI: 10.1002/mds.25747] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Revised: 09/30/2013] [Accepted: 10/18/2013] [Indexed: 12/24/2022] Open
Abstract
The aims of this study were to assess the peripapillary retinal nerve fiber layer (RNFL) thickness in patients with Parkinson's disease (PD), to determine its correlation with disease severity, and to define a simple biomarker for predicting clinical severity. One hundred two eyes from 52 patients affected by PD were compared with 97 eyes from 50 age-comparable controls. In all patients, peripapillary RNFL thickness was measured by optical coherence tomography (OCT). We used the Unified Parkinson's Disease Rating Scale (UPDRS) total score and measured responses in the on medication state. Eyes from patients with PD had a statistically significant decrease in average peripapillary RNFL thickness compared with control eyes (P < 0.001). This reduction was observed in every quadrant (inferior, superior, nasal [P < 0.001], and temporal [P = 0.017]) in patients with PD. Furthermore, a strong inverse correlation was found between the PD severity measured according to the UPDRS score and the average peripapillary RNFL thickness (r = -0.615; P < 0.001) and PD duration (r = -0.303; P = 0.002). From these results, we defined a regression equation that predicts the UPDRS score from the above-mentioned variables: UPDRS = 81.6 + 29.6 * log PD duration (years) - 0.6 * RFNL thickness (μm). We observed that, as the evolution and severity of PD progress, the peripapillary RNFL layer thickness, as evaluated by OCT, gradually diminishes. These results suggest that the average peripapillary RNFL thickness measured by OCT might be useful as a biomarker to detect the early onset and progression of PD.
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Affiliation(s)
- Beatriz Jiménez
- Department of Ophthalmology, "Lozano Blesa" University Clinic Hospital, Zaragoza, Spain
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