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São José C, Garcia-Pelaez J, Ferreira M, Arrieta O, André A, Martins N, Solís S, Martínez-Benítez B, Ordóñez-Sánchez ML, Rodríguez-Torres M, Sommer AK, Te Paske IBAW, Caldas C, Tischkowitz M, Tusié MT, Hoogerbrugge N, Demidov G, de Voer RM, Laurie S, Oliveira C. Combined loss of CDH1 and downstream regulatory sequences drive early-onset diffuse gastric cancer and increase penetrance of hereditary diffuse gastric cancer. Gastric Cancer 2023; 26:653-666. [PMID: 37249750 PMCID: PMC10361908 DOI: 10.1007/s10120-023-01395-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 04/30/2023] [Indexed: 05/31/2023]
Abstract
BACKGROUND Germline CDH1 pathogenic or likely pathogenic variants cause hereditary diffuse gastric cancer (HDGC). Once a genetic cause is identified, stomachs' and breasts' surveillance and/or prophylactic surgery is offered to asymptomatic CDH1 carriers, which is life-saving. Herein, we characterized an inherited mechanism responsible for extremely early-onset gastric cancer and atypical HDGC high penetrance. METHODS Whole-exome sequencing (WES) re-analysis was performed in an unsolved HDGC family. Accessible chromatin and CDH1 promoter interactors were evaluated in normal stomach by ATAC-seq and 4C-seq, and functional analysis was performed using CRISPR-Cas9, RNA-seq and pathway analysis. RESULTS We identified a germline heterozygous 23 Kb CDH1-TANGO6 deletion in a family with eight diffuse gastric cancers, six before age 30. Atypical HDGC high penetrance and young cancer-onset argued towards a role for the deleted region downstream of CDH1, which we proved to present accessible chromatin, and CDH1 promoter interactors in normal stomach. CRISPR-Cas9 edited cells mimicking the CDH1-TANGO6 deletion display the strongest CDH1 mRNA downregulation, more impacted adhesion-associated, type-I interferon immune-associated and oncogenic signalling pathways, compared to wild-type or CDH1-deleted cells. This finding solved an 18-year family odyssey and engaged carrier family members in a cancer prevention pathway of care. CONCLUSION In this work, we demonstrated that regulatory elements lying down-stream of CDH1 are part of a chromatin network that control CDH1 expression and influence cell transcriptome and associated signalling pathways, likely explaining high disease penetrance and very young cancer-onset. This study highlights the importance of incorporating scientific-technological updates and clinical guidelines in routine diagnosis, given their impact in timely genetic diagnosis and disease prevention.
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Affiliation(s)
- Celina São José
- i3S-Instituto de Investigação e Inovação em Saúde, Rua Alfredo Allen, 208, 4200-135, Porto, Portugal
- IPATIMUP-Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal
- Doctoral Programme in Biomedicine, Faculty of Medicine, University of Porto, Porto, Portugal
| | - José Garcia-Pelaez
- i3S-Instituto de Investigação e Inovação em Saúde, Rua Alfredo Allen, 208, 4200-135, Porto, Portugal
- IPATIMUP-Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal
- Doctoral Programme in Biomedicine, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Marta Ferreira
- i3S-Instituto de Investigação e Inovação em Saúde, Rua Alfredo Allen, 208, 4200-135, Porto, Portugal
- IPATIMUP-Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal
- Department Computer Science Faculty of Science, University of Porto, Porto, Portugal
| | - Oscar Arrieta
- Thoracic Oncology Unit, Department of Thoracic Oncology, Instituto Nacional de Cancerología, Mexico City, Mexico
| | - Ana André
- i3S-Instituto de Investigação e Inovação em Saúde, Rua Alfredo Allen, 208, 4200-135, Porto, Portugal
- IPATIMUP-Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal
| | - Nelson Martins
- i3S-Instituto de Investigação e Inovação em Saúde, Rua Alfredo Allen, 208, 4200-135, Porto, Portugal
- IPATIMUP-Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal
- Master Programme in Molecular Medicine and Oncology, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Samantha Solís
- INCMNSZ/Instituto de Investigaciones Biomédicas, Unidad de Biología Molecular y Medicina Genómica Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, UNAM Mexico City, Mexico
| | - Braulio Martínez-Benítez
- Pathology Department, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, INCMNSZ Mexico City, Mexico
| | - María Luisa Ordóñez-Sánchez
- INCMNSZ/Instituto de Investigaciones Biomédicas, Unidad de Biología Molecular y Medicina Genómica Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, UNAM Mexico City, Mexico
| | - Maribel Rodríguez-Torres
- INCMNSZ/Instituto de Investigaciones Biomédicas, Unidad de Biología Molecular y Medicina Genómica Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, UNAM Mexico City, Mexico
| | - Anna K Sommer
- Institute of Human Genetics, Medical Faculty, University of Bonn, Bonn, Germany
| | - Iris B A W Te Paske
- Department of Human Genetics, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Carlos Caldas
- Cancer Research UK Cambridge Institute, University of Cambridge, Li Ka Shing Centre, Cambridge, UK
- Department of Oncology, University of Cambridge, Cambridge, UK
- Cambridge Experimental Cancer Medicine Centre (ECMC), CRUK Cambridge Centre, NIHR Cambridge Biomedical Research Centre, University of Cambridge and Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Marc Tischkowitz
- Department of Medical Genetics, National Institute for Health Research Cambridge Biomedical Research Centre, University of Cambridge, Cambridge, UK
| | - Maria Teresa Tusié
- INCMNSZ/Instituto de Investigaciones Biomédicas, Unidad de Biología Molecular y Medicina Genómica Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, UNAM Mexico City, Mexico
| | - Nicoline Hoogerbrugge
- Department of Human Genetics, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
| | - German Demidov
- Institute of Medical Genetics and Applied Genomics, Tübingen, Germany
| | - Richarda M de Voer
- Department of Human Genetics, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Steve Laurie
- The Barcelona Institute of Science and Technology, CNAG-CRG, Centre for Genomic Regulation (CRG), Barcelona, Spain
| | - Carla Oliveira
- i3S-Instituto de Investigação e Inovação em Saúde, Rua Alfredo Allen, 208, 4200-135, Porto, Portugal.
- IPATIMUP-Instituto de Patologia e Imunologia Molecular da Universidade do Porto, Porto, Portugal.
- FMUP-Faculty of Medicine of the University of Porto, Porto, Portugal.
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Buque H, Catamo D, Felix C, André A, Gil I, Nzwalo H. Non-ketotic hyperglycaemia induced occipital reflex focal seizures. Heliyon 2023; 9:e18355. [PMID: 37519726 PMCID: PMC10375785 DOI: 10.1016/j.heliyon.2023.e18355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 07/10/2023] [Accepted: 07/14/2023] [Indexed: 08/01/2023] Open
Abstract
A myriad of neurological manifestations can occur in association with ketotic and non ketotic hyperglycaemic states. Contrary to diabetic coma, which is a universal complication under relatively established metabolic circumstances, the pathophysiology beyond hyperglycaemic-associated positive neurological manifestations, including seizures, remains to be elucidated. The occurrence of symptomatic focal epilepsy as a manifestation of diabetes-related hyperglycaemia is seldom reported. Herein, we present a case of focal epilepsy with alternating positive and negative neurological manifestations as the initial manifestation of diabetes-related hyperglycaemia. The electroencephalogram confirmed the diagnosis of focal occipital seizures, and the brain magnetic resonance imaging depicted the associated typical transient imaging findings in the occipital lobe. Seizures were refractory to antiepileptics, and symptomatic control was achieved after achieving normoglycemia. On follow-up, complete clinical and imaging recovery occurred. Reflex focal epilepsy in the context of hyperglycaemic states is a rare condition, and the possibility of misdiagnosis is likely high. As reported in similar cases, seizures can be resistant to antiepileptics. An important message to highlight is that seizures associated with hyperglycaemic status can be resistant to antiepileptic treatment and only cease with glycaemic control.
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Affiliation(s)
- Helena Buque
- Neurological Department, Central Hospital of Maputo, Mozambique
- Faculty of Medicine and Biomedical Sciences, University of Algarve, Portugal
| | - Deise Catamo
- Neurological Department, Central Hospital of Maputo, Mozambique
- Faculty of Medicine and Biomedical Sciences, University of Algarve, Portugal
| | - Catarina Felix
- Faculty of Medicine and Biomedical Sciences, University of Algarve, Portugal
- Neurological Department, Algarve University Hospital Center, Portugal
| | - Ana André
- Faculty of Medicine and Biomedical Sciences, University of Algarve, Portugal
- Neurological Department, Algarve University Hospital Center, Portugal
| | - Inês Gil
- Radiology Department, Algarve University Hospital Center, Portugal
| | - Hipólito Nzwalo
- Faculty of Medicine and Biomedical Sciences, University of Algarve, Portugal
- Neurological Department, Algarve University Hospital Center, Portugal
- Algarve Biomedical Sciences Research Institute, Portugal
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3
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São José C, Pereira C, Ferreira M, André A, Osório H, Gullo I, Carneiro F, Oliveira C. 3D Chromatin Architecture Re-Wiring at the CDH3/CDH1 Loci Contributes to E-Cadherin to P-Cadherin Expression Switch in Gastric Cancer. Biology (Basel) 2023; 12:803. [PMID: 37372088 DOI: 10.3390/biology12060803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/25/2023] [Accepted: 05/29/2023] [Indexed: 06/29/2023]
Abstract
Cadherins are cell-cell adhesion molecules, fundamental for cell architecture and polarity. E-cadherin to P-cadherin switch can rescue adherens junctions in epithelial tumours. Herein, we disclose a mechanism for E-cadherin to P-cadherin switch in gastric cancers. CDH1 and CDH3 mRNA expression was obtained from 42 gastric tumours' RNA-seq data. CRISPR-Cas9 was used to knock out CDH1 and a putative regulatory element. CDH1-depleted and parental cells were submitted to proteomics and enrichment GO terms analysis; ATAC-seq/4C-seq with a CDH1 promoter viewpoint to assess chromatin accessibility and conformation; and RT-PCR/flow cytometry to assess CDH1/E-cadherin and CDH3/P-cadherin expression. In 42% of gastric tumours analysed, CDH1 to CDH3 switch was observed. CDH1 knockout triggered CDH1/E-cadherin complete loss and CDH3/P-cadherin expression increase at plasma membrane. This switch, likely rescuing adherens junctions, increased cell migration/proliferation, commonly observed in aggressive tumours. E- to P-cadherin switch accompanied increased CDH1 promoter interactions with CDH3-eQTL, absent in normal stomach and parental cells. CDH3-eQTL deletion promotes CDH3/CDH1 reduced expression. These data provide evidence that loss of CDH1/E-cadherin expression alters the CDH3 locus chromatin conformation, allowing a CDH1 promoter interaction with a CDH3-eQTL, and promoting CDH3/P-cadherin expression. These data highlight a novel mechanism triggering E- to P-cadherin switch in gastric cancer.
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Affiliation(s)
- Celina São José
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto, 4200-135 Porto, Portugal
- Doctoral Programme in Biomedicine, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal
| | - Carla Pereira
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto, 4200-135 Porto, Portugal
| | - Marta Ferreira
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto, 4200-135 Porto, Portugal
- Doctoral Program in Computer Sciences, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
| | - Ana André
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal
| | - Hugo Osório
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto, 4200-135 Porto, Portugal
- Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal
| | - Irene Gullo
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto, 4200-135 Porto, Portugal
- Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal
- Department of Pathology, Centro Hospitalar Universitário São João, 4200-319 Porto, Portugal
| | - Fátima Carneiro
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto, 4200-135 Porto, Portugal
- Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal
- Department of Pathology, Centro Hospitalar Universitário São João, 4200-319 Porto, Portugal
| | - Carla Oliveira
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto, 4200-135 Porto, Portugal
- Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal
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4
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Alloune R, Lapegue F, André A, Faruch-Bilfeld M, Chiavassa H, Mansat P, Basselerie H, Bachour R. Stenosing Tenosynovitis of the Extensor Carpi Ulnaris: A Reverse De Quervain Tenosynovitis. Semin Musculoskelet Radiol 2022. [DOI: 10.1055/s-0042-1750630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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5
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Alloune R, Lapegue F, André A, Sans N, Faruch-Bilfeld M, Chiavassa H, Mansat P, Basselerie H, Bachour R. Stenosing Tenosynovitis of the Extensor Carpi Ulnaris: A Reverse De Quervain's Tenosynovitis. Semin Musculoskelet Radiol 2022. [DOI: 10.1055/s-0042-1750664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Park JH, Almeida GM, Pereira C, Lemos C, Campelos S, Gullo I, Martins D, Gonçalves G, Leitão D, Neto JL, André A, Borges C, Almeida D, Lee HJ, Kong SH, Kim WH, Carneiro F, Almeida R, Yang HK, Oliveira C. CD44v6 high membranous expression as a predictive marker of therapy response in patients with gastric cancer. J Clin Oncol 2022. [DOI: 10.1200/jco.2022.40.4_suppl.342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
342 Background: In gastric cancer (GC), biomarkers that define prognosis and predict treatment response remain scarce. We hypothesized that the extent of CD44v6 membranous tumor expression could predict prognosis and therapy response in GC patients. Methods: Two GC surgical cohorts, from Portugal and South Korea (n = 964), were characterized for the extension of CD44v6 membranous immunoexpression, clinicopathological features, patient survival, and therapy response. The value of CD44v6 expression in predicting response to treatment and its impact on prognosis was determined. Results: High CD44v6 expression was associated with invasive features (perineural invasion and depth of invasion) in both cohorts and with worse survival in the Portuguese GC cohort (HR 1.461; 95% confidence interval 1.002–2.131). Patients with high CD44v6 tumor expression benefited from conventional chemotherapy in addition to surgery (p < 0.05), particularly those with heterogeneous CD44v6- positive and -negative populations (CD44v6_3+) (p < 0.007 and p < 0.009). Conclusions: Our study is the first to identify CD44v6 high membranous expression as a potential predictive marker of response to conventional treatment, but it does not clarify CD44v6 prognostic value in GC. Importantly, our data support selection of GC patients with high CD44v6-expressing tumors for conventional chemotherapy in addition to surgery. These findings will allow better stratification of GC patients for treatment, potentially improving their overall survival.
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Affiliation(s)
- Ji-Hyeon Park
- Department of Surgery, Seoul National University College of Medicine, Seoul, South Korea
| | - Gabriela M. Almeida
- Institute of Pathology and Immunology of the University of Porto, Porto, Portugal
| | - Carla Pereira
- Ipatimup–Institute of Molecular Pathology and Immunology of the University of Porto, Porto, Portugal
| | - Carolina Lemos
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
| | - Sofia Campelos
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
| | - Irene Gullo
- Centro hospitalar universitário São João, Porto, Portugal
| | - Diana Martins
- Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Gilza Gonçalves
- Ipatimup–Institute of Molecular Pathology and Immunology of the University of Porto, Porto, Portugal
| | - Dina Leitão
- Faculty of Medicine, University of Porto, Porto, Portugal
| | - João Luís Neto
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Ana André
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
| | - Clara Borges
- Medical Oncology Department, Centro Hospitalar Universitário de São João, Porto, Portugal
| | | | - Hyuk-Joon Lee
- Cancer Research Institute and Department of Surgery, Seoul National University College of Medicine, Seoul, South Korea
| | - Seong-Ho Kong
- Department of Surgery, Seoul National University College of Medicine, Seoul, South Korea
| | - Woo Ho Kim
- Department of Pathology, Seoul National University College of Medicine, Seoul, South Korea
| | - Fatima Carneiro
- Centro Hospitalar Universitário São João, EPE, Porto, Portugal
| | - Raquel Almeida
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
| | - Han-Kwang Yang
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, South Korea
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7
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Pereira C, Park JH, Campelos S, Gullo I, Lemos C, Solorzano L, Martins D, Gonçalves G, Leitão D, Lee HJ, Kong SH, André A, Borges C, Almeida D, Wälbhy C, Almeida R, Kim WH, Carneiro F, Yang HK, Almeida GM, Oliveira C. Comparison of East-Asia and West-Europe cohorts explains disparities in survival outcomes and highlights predictive biomarkers of early gastric cancer aggressiveness. Int J Cancer 2021; 150:868-880. [PMID: 34751446 DOI: 10.1002/ijc.33872] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 07/29/2021] [Revised: 10/09/2021] [Accepted: 10/22/2021] [Indexed: 11/06/2022]
Abstract
Surgical resection with lymphadenectomy and peri-operative chemotherapy is the universal mainstay for curative treatment of gastric cancer (GC) patients with loco-regional disease. However, GC survival remains asymmetric in West- and East-world regions. We hypothesize this asymmetry derives from differential clinical management. Therefore, we collected chemo-naïve GC patients from Portugal and South-Korea to explore specific immunophenotypic profiles related to disease aggressiveness, and clinicopathological factors potentially explaining associated overall survival (OS) differences. Clinicopathological and survival data were collected from chemo-naïve surgical cohorts from Portugal (West-Europe cohort (WE-C); n=170) and South-Korea (East-Asia cohort (EA-C); n=367), and correlated with immunohistochemical expression profiles of E-cadherin and CD44v6 obtained from consecutive tissue microarrays sections. Survival analysis revealed a subset of 12.4% of WE-C patients, whose tumors concomitantly express E-cadherin_abnormal and CD44v6_very-high, displaying extremely poor OS, even at TNM stages I and II. These WE-C stages I and II patients were particularly aggressive compared to all other, invading deeper into the gastric wall (p=0.032) and more often permeating the vasculature (p=0.018) and nerves (p=0.009). A similar immunophenotypic profile was found in 11.9% of EA-C patients, but unrelated to survival. Stage I and II EA-C patients displaying both biomarkers also permeated more lymphatic vessels (p=0.003), promoting lymph node (LN) metastasis (p=0.019), being diagnosed on average 8-years earlier and submitted to more extensive LN dissection than WE-C. Concomitant E-cadherin_abnormal/CD44v6_very-high expression predicts aggressiveness and poor survival of stage I and II GC submitted to conservative lymphadenectomy.
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Affiliation(s)
- Carla Pereira
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135, Porto, Portugal.,Ipatimup - Institute of Molecular Pathology and Immunology of the University of Porto, 4200-135, Porto, Portugal.,Doctoral Programme in Biomedicine, Faculty of Medicine of the University of Porto, 4200-319, Porto, Portugal
| | - Ji-Hyeon Park
- Department of Surgery, Seoul National University Hospital, Seoul, Korea
| | - Sofia Campelos
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135, Porto, Portugal.,Department of Pathology, Ipatimup Diagnostics, Institute of Molecular Pathology and Immunology, University of Porto, 4200-135, Porto, Portugal
| | - Irene Gullo
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135, Porto, Portugal.,Department of Pathology, Centro Hospitalar Universitário de São João, 4200-319, Porto, Portugal.,Faculty of Medicine of the University of Porto, 4200-319, Porto, Portugal
| | - Carolina Lemos
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135, Porto, Portugal.,UniGENe, IBMC - Institute for Molecular and Cell Biology, 4200-135, Porto, Portugal.,ICBAS - Instituto Ciências Biomédicas Abel Salazar, Universidade do Porto, 4050-313, Porto, Portugal
| | - Leslie Solorzano
- Center for Image Analysis, Dept. of IT and SciLifeLab, Uppsala University, SE-751 05, Uppsala, Sweden
| | - Diana Martins
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135, Porto, Portugal.,Ipatimup - Institute of Molecular Pathology and Immunology of the University of Porto, 4200-135, Porto, Portugal.,Department of Biomedical Laboratory Sciences, ESTESC- Coimbra Health School, Polytechnic Institute of Coimbra, 3046-854, Coimbra, Portugal
| | - Gilza Gonçalves
- Ipatimup - Institute of Molecular Pathology and Immunology of the University of Porto, 4200-135, Porto, Portugal
| | - Dina Leitão
- Department of Pathology, Centro Hospitalar Universitário de São João, 4200-319, Porto, Portugal.,Faculty of Medicine of the University of Porto, 4200-319, Porto, Portugal
| | - Hyuk-Joon Lee
- Department of Surgery, Seoul National University Hospital, Seoul, Korea.,Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea.,Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Seong-Ho Kong
- Department of Surgery, Seoul National University Hospital, Seoul, Korea.,Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Ana André
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135, Porto, Portugal.,Ipatimup - Institute of Molecular Pathology and Immunology of the University of Porto, 4200-135, Porto, Portugal
| | - Clara Borges
- Medical Oncology Department, Centro Hospitalar Universitário de São João, 4200-319, Porto, Portugal
| | - Daniela Almeida
- Medical Oncology Department, Centro Hospitalar Universitário de São João, 4200-319, Porto, Portugal
| | - Carolina Wälbhy
- Center for Image Analysis, Dept. of IT and SciLifeLab, Uppsala University, SE-751 05, Uppsala, Sweden
| | - Raquel Almeida
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135, Porto, Portugal.,Ipatimup - Institute of Molecular Pathology and Immunology of the University of Porto, 4200-135, Porto, Portugal.,Department of Pathology, Centro Hospitalar Universitário de São João, 4200-319, Porto, Portugal.,Faculty of Sciences of the University of Porto, 4169-007, Porto, Portugal
| | - Woo Ho Kim
- Department of Pathology, Seoul National University College of Medicine, Seoul, Korea
| | - Fátima Carneiro
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135, Porto, Portugal.,Ipatimup - Institute of Molecular Pathology and Immunology of the University of Porto, 4200-135, Porto, Portugal.,Department of Pathology, Centro Hospitalar Universitário de São João, 4200-319, Porto, Portugal.,Faculty of Medicine of the University of Porto, 4200-319, Porto, Portugal
| | - Han-Kwang Yang
- Department of Surgery, Seoul National University Hospital, Seoul, Korea.,Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea.,Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Gabriela M Almeida
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135, Porto, Portugal.,Ipatimup - Institute of Molecular Pathology and Immunology of the University of Porto, 4200-135, Porto, Portugal.,Faculty of Medicine of the University of Porto, 4200-319, Porto, Portugal
| | - Carla Oliveira
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135, Porto, Portugal.,Ipatimup - Institute of Molecular Pathology and Immunology of the University of Porto, 4200-135, Porto, Portugal.,Faculty of Medicine of the University of Porto, 4200-319, Porto, Portugal
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8
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Almeida GM, Pereira C, Park JH, Lemos C, Campelos S, Gullo I, Martins D, Gonçalves G, Leitão D, Neto JL, André A, Borges C, Almeida D, Lee HJ, Kong SH, Kim WH, Carneiro F, Almeida R, Yang HK, Oliveira C. CD44v6 High Membranous Expression Is a Predictive Marker of Therapy Response in Gastric Cancer Patients. Biomedicines 2021; 9:biomedicines9091249. [PMID: 34572441 PMCID: PMC8465138 DOI: 10.3390/biomedicines9091249] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/06/2021] [Accepted: 09/08/2021] [Indexed: 01/27/2023] Open
Abstract
In gastric cancer (GC), biomarkers that define prognosis and predict treatment response remain scarce. We hypothesized that the extent of CD44v6 membranous tumor expression could predict prognosis and therapy response in GC patients. Two GC surgical cohorts, from Portugal and South Korea (n = 964), were characterized for the extension of CD44v6 membranous immuno-expression, clinicopathological features, patient survival, and therapy response. The value of CD44v6 expression in predicting response to treatment and its impact on prognosis was determined. High CD44v6 expression was associated with invasive features (perineural invasion and depth of invasion) in both cohorts and with worse survival in the Portuguese GC cohort (HR 1.461; 95% confidence interval 1.002–2.131). Patients with high CD44v6 tumor expression benefited from conventional chemotherapy in addition to surgery (p < 0.05), particularly those with heterogeneous CD44v6-positive and -negative populations (CD44v6_3+) (p < 0.007 and p < 0.009). Our study is the first to identify CD44v6 high membranous expression as a potential predictive marker of response to conventional treatment, but it does not clarify CD44v6 prognostic value in GC. Importantly, our data support selection of GC patients with high CD44v6-expressing tumors for conventional chemotherapy in addition to surgery. These findings will allow better stratification of GC patients for treatment, potentially improving their overall survival.
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Affiliation(s)
- Gabriela M Almeida
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal; (G.M.A.); (C.P.); (C.L.); (S.C.); (I.G.); (D.M.); (A.A.); (F.C.); (R.A.)
- Ipatimup—Institute of Molecular Pathology and Immunology of the University of Porto, 4200-135 Porto, Portugal;
- Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal;
| | - Carla Pereira
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal; (G.M.A.); (C.P.); (C.L.); (S.C.); (I.G.); (D.M.); (A.A.); (F.C.); (R.A.)
- Ipatimup—Institute of Molecular Pathology and Immunology of the University of Porto, 4200-135 Porto, Portugal;
- Doctoral Programme in Biomedicine, Faculty of Medicine of the University of Porto, 4200-319 Porto, Portugal
| | - Ji-Hyeon Park
- Department of Surgery, Seoul National University Hospital, Seoul 03080, Korea; (J.-H.P.); (H.-J.L.); (S.-H.K.); (H.-K.Y.)
| | - Carolina Lemos
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal; (G.M.A.); (C.P.); (C.L.); (S.C.); (I.G.); (D.M.); (A.A.); (F.C.); (R.A.)
- UnIGENe, IBMC—Institute for Molecular and Cell Biology, 4200-135 Porto, Portugal
- ICBAS—Instituto Ciências Biomédicas Abel Salazar, Universidade do Porto, 4050-313 Porto, Portugal
| | - Sofia Campelos
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal; (G.M.A.); (C.P.); (C.L.); (S.C.); (I.G.); (D.M.); (A.A.); (F.C.); (R.A.)
- Department of Pathology, Ipatimup Diagnostics, Institute of Molecular Pathology and Immunology, University of Porto, 4200-135 Porto, Portugal
| | - Irene Gullo
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal; (G.M.A.); (C.P.); (C.L.); (S.C.); (I.G.); (D.M.); (A.A.); (F.C.); (R.A.)
- Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal;
- Department of Pathology, Centro Hospitalar Universitário de São João, 4200-319 Porto, Portugal
| | - Diana Martins
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal; (G.M.A.); (C.P.); (C.L.); (S.C.); (I.G.); (D.M.); (A.A.); (F.C.); (R.A.)
- Ipatimup—Institute of Molecular Pathology and Immunology of the University of Porto, 4200-135 Porto, Portugal;
- Department of Biomedical Laboratory Sciences, ESTeSC—Coimbra Health School, Polytechnic Institute of Coimbra, 3046-854 Coimbra, Portugal
| | - Gilza Gonçalves
- Ipatimup—Institute of Molecular Pathology and Immunology of the University of Porto, 4200-135 Porto, Portugal;
| | - Dina Leitão
- Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal;
- Department of Pathology, Centro Hospitalar Universitário de São João, 4200-319 Porto, Portugal
| | - João Luís Neto
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal;
| | - Ana André
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal; (G.M.A.); (C.P.); (C.L.); (S.C.); (I.G.); (D.M.); (A.A.); (F.C.); (R.A.)
- Ipatimup—Institute of Molecular Pathology and Immunology of the University of Porto, 4200-135 Porto, Portugal;
| | - Clara Borges
- Medical Oncology Department, Centro Hospitalar Universitário de São João, 4200-319 Porto, Portugal; (C.B.); (D.A.)
| | - Daniela Almeida
- Medical Oncology Department, Centro Hospitalar Universitário de São João, 4200-319 Porto, Portugal; (C.B.); (D.A.)
| | - Hyuk-Joon Lee
- Department of Surgery, Seoul National University Hospital, Seoul 03080, Korea; (J.-H.P.); (H.-J.L.); (S.-H.K.); (H.-K.Y.)
- Cancer Research Institute, Seoul National University, Seoul 03080, Korea
- Department of Surgery, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Seong-Ho Kong
- Department of Surgery, Seoul National University Hospital, Seoul 03080, Korea; (J.-H.P.); (H.-J.L.); (S.-H.K.); (H.-K.Y.)
- Department of Surgery, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Woo Ho Kim
- Department of Pathology, Seoul National University College of Medicine, Seoul 03080, Korea;
| | - Fátima Carneiro
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal; (G.M.A.); (C.P.); (C.L.); (S.C.); (I.G.); (D.M.); (A.A.); (F.C.); (R.A.)
- Ipatimup—Institute of Molecular Pathology and Immunology of the University of Porto, 4200-135 Porto, Portugal;
- Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal;
- Department of Pathology, Centro Hospitalar Universitário de São João, 4200-319 Porto, Portugal
| | - Raquel Almeida
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal; (G.M.A.); (C.P.); (C.L.); (S.C.); (I.G.); (D.M.); (A.A.); (F.C.); (R.A.)
- Ipatimup—Institute of Molecular Pathology and Immunology of the University of Porto, 4200-135 Porto, Portugal;
- Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal;
- Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
| | - Han-Kwang Yang
- Department of Surgery, Seoul National University Hospital, Seoul 03080, Korea; (J.-H.P.); (H.-J.L.); (S.-H.K.); (H.-K.Y.)
- Cancer Research Institute, Seoul National University, Seoul 03080, Korea
- Department of Surgery, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Carla Oliveira
- i3S—Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal; (G.M.A.); (C.P.); (C.L.); (S.C.); (I.G.); (D.M.); (A.A.); (F.C.); (R.A.)
- Ipatimup—Institute of Molecular Pathology and Immunology of the University of Porto, 4200-135 Porto, Portugal;
- Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal;
- Correspondence: ; Tel.: +351-220-408-800
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Jorge A, André A, Rocha AL, Figueiredo C, Santos M, Freitas E, Sousa L, Shamasna M, Salgado V, de Sá J, Cerqueira J, Vale J, Sá MJ, Correia I. Defining the prodromal phase of multiple sclerosis based on healthcare access in a Portuguese population - ProdMS study. Mult Scler Relat Disord 2021; 55:103154. [PMID: 34348212 DOI: 10.1016/j.msard.2021.103154] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 07/14/2021] [Accepted: 07/15/2021] [Indexed: 11/18/2022]
Abstract
BACKGROUND Multiple sclerosis (MS) is a chronic immune-mediated disease of the central nervous system. Prodromal symptoms and higher healthcare use have been suggested in patients who later develop MS. OBJECTIVES Assess the healthcare utilization pattern of relapsing-remitting MS (RRMS) patients in the five years prior to MS diagnosis. METHODS Retrospective, multicentric study. Demographic and clinical data, drug prescriptions and diagnostic tests were collected from electronic health records five-years previous to MS diagnosis and compared with national data. RESULTS Included 168 patients, 112 (66.7%) female, median age 34±11 years. The mean number of healthcare use per patient per year was 3.14±2,69, most of them in primary healthcare (47%). Most frequent symptoms were musculoskeletal (22%), gastrointestinal (17%), sensitive (14%) and sensory organs (14%). Median number of diagnostic tests per patient was 6 (IQR 7), and drug prescriptions per patient was 6 (IQR 9). Most frequently prescribed drugs were analgesic/anti-inflammatories, antibiotics and anxiolytics and there was a high request rate of MRIs. CONCLUSION RRMS patients had a high frequency of healthcare utilization when compared to national data. This supports the current evidence showing a prodromal phase in MS.
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Affiliation(s)
- André Jorge
- Neurology Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.
| | - Ana André
- Neurology Department, Centro Hospitalar Universitário do Algarve, Faro, Portugal
| | - Ana Luísa Rocha
- Neurology Department, Centro Hospitalar Universitário São João, Porto, Portugal
| | - Carlos Figueiredo
- Neurology Department, Hospital Professor Doutor Fernando Fonseca, Lisboa, Portugal
| | - Mónica Santos
- Neurology Department, Centro Hospitalar e Universitário de Lisboa Norte, Lisboa, Portugal
| | - Eduardo Freitas
- Neurology Department, Unidade Local de Saúde Alto Minho, Viana do Castelo, Portugal; Neurology Department, Hospital de Braga, Braga, Portugal
| | - Lívia Sousa
- Neurology Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Motasem Shamasna
- Neurology Department, Centro Hospitalar Universitário do Algarve, Faro, Portugal
| | - Vasco Salgado
- Neurology Department, Hospital Professor Doutor Fernando Fonseca, Lisboa, Portugal
| | - João de Sá
- Neurology Department, Centro Hospitalar e Universitário de Lisboa Norte, Lisboa, Portugal
| | - João Cerqueira
- Neurology Department, Unidade Local de Saúde Alto Minho, Viana do Castelo, Portugal; Neurology Department, Hospital de Braga, Braga, Portugal
| | - José Vale
- Neurology Department, Hospital Beatriz Ângelo, Loures, Portugal
| | - Maria José Sá
- Neurology Department, Centro Hospitalar Universitário São João, Porto, Portugal; Faculty of Health Sciences, Universidade Fernando Pessoa, Porto, Portugal
| | - Inês Correia
- Neurology Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
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Marques N, Gerlier L, Ramos M, Pereira H, Rocha S, Fonseca AC, André A, Melo R, Sidelnikov E. Patient and caregiver productivity loss and indirect costs associated with cardiovascular events in Portugal. Revista Portuguesa de Cardiologia (English Edition) 2021. [DOI: 10.1016/j.repce.2020.05.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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11
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André A, Félix C, Corvacho M, Nzwalo H. On the plausibility of late neuropsychiatric manifestations associated with the COVID-19 pandemic. J Neurol Sci 2020; 417:117060. [PMID: 32739501 PMCID: PMC7384401 DOI: 10.1016/j.jns.2020.117060] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 07/22/2020] [Accepted: 07/23/2020] [Indexed: 11/29/2022]
Abstract
Virus-host interactions in COVID-19 pandemic is a substrate for the emergence of late neurological manifestations Occurrence subacute autoimmune disorders after COVID-19 suggests the risk of late neurological autoimmune disturbance Global monitoring is important to uncover emergence of late neuropsychiatric manifestations
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Affiliation(s)
- Ana André
- Neurology Department, Algarve University Hospital, Portugal
| | - Catarina Félix
- Neurology Department, Algarve University Hospital, Portugal
| | | | - Hipólito Nzwalo
- Faculty of Medicine and Biomedical Medicine, University of Algarve, Portugal.
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12
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André A, Touré AK, Stien D, Eparvier V. 2,5-diketopiperazines mitigate the amount of advanced glycation end products accumulated with age in human dermal fibroblasts. Int J Cosmet Sci 2020; 42:596-604. [PMID: 32767373 DOI: 10.1111/ics.12655] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 07/29/2020] [Indexed: 01/21/2023]
Abstract
OBJECTIVE Glycation is a common non-enzymatic reaction between proteins and sugars, resulting in the formation of advanced glycation end products (AGEs) in the human body. As can be seen in diabetic patients, the accumulation of AGEs in the skin has aesthetic consequences (wrinkles, brown spots and yellowish complexion). Therefore, the objective of this work was to find compounds isolated from natural sources that could eliminate the final AGEs accumulated in the skin with ageing. METHODS AND RESULTS A preliminary screening performed on a bank of microbial extracts and pure compounds showed that 2,5-Diketopiperazines (DKPs), as well as the extract of Sphingobacterium sp (SNB-CN13), reduced the presence of AGEs in fibroblasts by -28% and -23%, respectively. In this article, we present the dereplication approach used to reveal the presence of 26 different DKPs in the crude extract of Sphingobacterium sp. Bioguided fractionation has led to the isolation of 12 of them, whose identity has been confirmed by HRMS and NMR. A green synthesis approach has been developed to synthesize 3 symmetrical DKPs. The biological activity of all DKPs was evaluated by the development of an in vitro test using immunocytochemistry to reveal the presence of AGE carboxymethyl-lysine in human dermal fibroblasts. CONCLUSION Our work shows for the first time that DKPs decrease the amount of carboxymethyl-lysine AGE in elderly human dermal fibroblasts grown in vitro. Therefore, diketopiperazines can be considered as compounds of interest for dermatological and cosmetic applications with an anti-ageing aim.
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Affiliation(s)
- A André
- CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, Université Paris-Saclay, 1 avenue de la Terrasse, Gif-sur-Yvette, 91198, France.,Laboratoire Shigeta, 62 boulevard Davout, Paris, 75020, France
| | - A K Touré
- Laboratoire Shigeta, 62 boulevard Davout, Paris, 75020, France
| | - D Stien
- Laboratoire de Biodiversité et Biotechnologies Microbiennes, Sorbonne Université, CNRS, USR 3579, Banyuls-sur-mer, 66650, France
| | - V Eparvier
- Laboratoire Shigeta, 62 boulevard Davout, Paris, 75020, France
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André A, Félix C, Nzwalo H. Should we mind for late neurologic manifestations from novel coronavirus? Clin Neurol Neurosurg 2020; 196:106021. [PMID: 32570020 PMCID: PMC7295516 DOI: 10.1016/j.clineuro.2020.106021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 06/12/2020] [Accepted: 06/13/2020] [Indexed: 02/01/2023]
Affiliation(s)
- Ana André
- Neurology Department, Algarve University Hospital, Portugal
| | - Catarina Félix
- Neurology Department, Algarve University Hospital, Portugal
| | - Hipólito Nzwalo
- Faculty of Medicine and Biomedical Medicine, University of Algarve, Campus da Penha, 8005-139 Faro, Portugal.
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Brás A, André A, Sá L, Carvalho J, Matos A, Gens H, Nzwalo H. Anti-NMDAR Encephalitis Following Herpes Simplex Virus Encephalitis: 2 Cases From Portugal. Neurohospitalist 2020; 10:133-138. [PMID: 32373278 DOI: 10.1177/1941874419870987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Herpes simplex virus encephalitis (HSVE) usually presents as a monophasic disease. Symptomatic HSVE relapsing with seizures, encephalopathy, or involuntary movements associated with anti-N-methyl-d-aspartate receptor (anti-NMDAR) encephalitis have been recently reported. We report 2 cases of adult post-HSVE anti-NMDAR encephalitis from Portugal. Two female patients aged 50 years and 30 years were diagnosed with herpes simplex virus type 2 and type 1 encephalitis, respectively. After the initial improvement with specific treatment and despite virologic negativization, both patients suffered clinical, electroencephalographic, and imaging deterioration. The autoimmune encephalitis hypothesis was confirmed with the demonstration of anti-NMDAR antibodies in both cerebrospinal fluid and serum. Both responded to human immunoglobulin and methylprednisolone, with progressive gain of autonomy along the follow-up period. Thymectomy for thymic hyperplasia diagnosed during follow-up was performed in 1 patient. Although being rare, post-HSVE anti-NMDAR encephalitis should be considered in all cases of symptomatic recrudescence after HSVE, since adequate immune-modulating treatment improves the outcome. The role of thyme hyperplasia in autoimmune encephalitis pathogenesis needs better understanding.
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Affiliation(s)
- Ana Brás
- Neurology Department, University and Hospital Center of Coimbra, Coimbra, Portugal
| | - Ana André
- Neurology Department, Algarve Hospital University Center, Faro, Portugal
| | - Laura Sá
- Infectious Disease Department, Algarve Hospital University Center, Faro, Portugal
| | - João Carvalho
- Neurology Department, University and Hospital Center of Coimbra, Coimbra, Portugal
| | - Anabela Matos
- Neurology Department, University and Hospital Center of Coimbra, Coimbra, Portugal
| | - Helena Gens
- Neurology Department, University and Hospital Center of Coimbra, Coimbra, Portugal
| | - Hipólito Nzwalo
- Department of Biomedical Sciences and Medicine, University of Algarve, Faro, Portugal
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15
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Barbosa MAG, Capela R, Rodolfo J, Fonseca E, Montes R, André A, Capitão A, Carvalho AP, Quintana JB, Castro LFC, Santos MM. Linking chemical exposure to lipid homeostasis: A municipal waste water treatment plant influent is obesogenic for zebrafish larvae. Ecotoxicol Environ Saf 2019; 182:109406. [PMID: 31288122 DOI: 10.1016/j.ecoenv.2019.109406] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [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: 02/20/2019] [Revised: 06/18/2019] [Accepted: 06/29/2019] [Indexed: 06/09/2023]
Abstract
Obesity, a risk factor for the development of type-2 diabetes, hypertension, cardiovascular disease, hepatic steatosis and some cancers, has been ranked in the top 10 health risk in the world by the World Health Organization. Despite the growing body of literature evidencing an association between the obesity epidemic and specific chemical exposure across a wide range of animal taxa, very few studies assessed the effects of chemical mixtures and environmental samples on lipid homeostasis. Additionally, the mode of action of several chemicals reported to alter lipid homeostasis is still poorly understood. Aiming to fill some of these gaps, we combined an in vivo assay with the model species zebrafish (Danio rerio) to screen lipid accumulation and evaluate expression changes of key genes involved in lipid homeostasis, alongside with an in vitro transactivation assay using human and zebrafish nuclear receptors, retinoid X receptor α and peroxisome proliferator-activated receptor γ. Zebrafish larvae were exposed from 4 th day post-fertilization until the end of the experiment (day 18), to six different treatments: experimental control, solvent control, tributyltin at 100 ng/L Sn and 200 ng/L Sn (positive control), and wastewater treatment plant influent at 1.25% and 2.5%. Exposure to tributyltin and to 2.5% influent led to a significant accumulation of lipids, with white adipose tissue deposits concentrating in the perivisceral area. The highest in vitro tested influent concentration (10%) was able to significantly transactivate the human heterodimer PPARγ/RXRα, thus suggesting the presence in the influent of HsPPARγ/RXRα agonists. Our results demonstrate, for the first time, the ability of complex environmental samples from a municipal waste water treatment plant influent to induce lipid accumulation in zebrafish larvae.
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Affiliation(s)
- Mélanie Audrey Gomes Barbosa
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal; FCUP-Faculty of Sciences, University of Porto, Rua Do Campo Alegre, 4169-007, Porto, Portugal; ICBAS - Institute of Biomedical Sciences Abel Salazar, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313, Porto, Portugal
| | - Ricardo Capela
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal; FCUP-Faculty of Sciences, University of Porto, Rua Do Campo Alegre, 4169-007, Porto, Portugal
| | - Jorge Rodolfo
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal; ICBAS - Institute of Biomedical Sciences Abel Salazar, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313, Porto, Portugal
| | - Elza Fonseca
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal
| | - Rosa Montes
- Department of Analytical Chemistry, Nutrition and Food Sciences, IIAA-Institute for Food Analysis and Research, Universidade de Santiago de Compostela, Constantino Candeira S/N, 15782, Santiago de Compostela, Spain
| | - Ana André
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal
| | - Ana Capitão
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal
| | - António Paulo Carvalho
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal; FCUP-Faculty of Sciences, University of Porto, Rua Do Campo Alegre, 4169-007, Porto, Portugal
| | - José Benito Quintana
- Department of Analytical Chemistry, Nutrition and Food Sciences, IIAA-Institute for Food Analysis and Research, Universidade de Santiago de Compostela, Constantino Candeira S/N, 15782, Santiago de Compostela, Spain
| | - L Filipe C Castro
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal; FCUP-Faculty of Sciences, University of Porto, Rua Do Campo Alegre, 4169-007, Porto, Portugal
| | - Miguel Machado Santos
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal; FCUP-Faculty of Sciences, University of Porto, Rua Do Campo Alegre, 4169-007, Porto, Portugal.
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16
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Sainath SB, André A, Castro LFC, Santos MM. The evolutionary road to invertebrate thyroid hormone signaling: Perspectives for endocrine disruption processes. Comp Biochem Physiol C Toxicol Pharmacol 2019; 223:124-138. [PMID: 31136851 DOI: 10.1016/j.cbpc.2019.05.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 05/23/2019] [Accepted: 05/23/2019] [Indexed: 12/14/2022]
Abstract
Thyroid hormones (THs) are the only iodine-containing hormones that play fundamental roles in chordates and non-chordates. The chemical nature, mode of action and the synthesis of THs are well established in mammals and other vertebrates. Although thyroid-like hormones have been detected in protostomes and non-chordate deuterostomes, TH signaling is poorly understood as compared to vertebrates, particularly in protostomes. Therefore, the central objective of this article is to review TH system components and TH-induced effects in non-vertebrate chordates, non-chordate deuterostomes and protostomes based on available genomes and functional information. To accomplish this task, we integrate here the available knowledge on the THs signaling across non-vertebrate chordates, non-chordate deuterostomes and protostomes by considering studies encompassing TH system components and physiological actions of THs. We also address the possible interactions of thyroid disrupting chemicals and their effects in protostomes and non-chordate deuterostomes. Finally, the perspectives on current and future challenges are discussed.
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Affiliation(s)
- S B Sainath
- CIMAR/CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal; Department of Biotechnology, Vikrama Simhapuri University, Nellore 524 003, AP, India.
| | - A André
- CIMAR/CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal
| | - L Filipe C Castro
- CIMAR/CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal; FCUP - Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal.
| | - M M Santos
- CIMAR/CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal; FCUP - Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal.
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Nunes S, Viana S, Rolo A, Palmeira C, André A, Cavadas C, Pintado M, Reis F. Blueberry juice as a nutraceutical approach to prevent prediabetes progression in an animal model: focus on hepatic steatosis. Eur J Public Health 2019. [DOI: 10.1093/eurpub/ckz034.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- S Nunes
- Faculty of Medicine, University of Coimbra, Portugal
- Faculty of Pharmacy, University of Coimbra, Portugal
| | - S Viana
- Faculty of Medicine, University of Coimbra, Portugal
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
| | - A Rolo
- Center for Neurosciences and Cell Biology of Coimbra, University of Coimbra, Portugal
- School of Biotechnology, Catholic University of Portugal/Porto, Portugal
| | - C Palmeira
- Center for Neurosciences and Cell Biology of Coimbra, University of Coimbra, Portugal
- School of Biotechnology, Catholic University of Portugal/Porto, Portugal
| | - A André
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
| | - C Cavadas
- Faculty of Pharmacy, University of Coimbra, Portugal
- Center for Neurosciences and Cell Biology of Coimbra, University of Coimbra, Portugal
| | - M Pintado
- School of Biotechnology, Catholic University of Portugal/Porto, Portugal
| | - F Reis
- Faculty of Medicine, University of Coimbra, Portugal
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André A, Figueiredo J, Jordão C, Oliveira J. Ultrasound evaluation of the intima-media complex of the common carotid arteries. Eur J Public Health 2019. [DOI: 10.1093/eurpub/ckz034.097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- A André
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
| | - J Figueiredo
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
| | - C Jordão
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
| | - J Oliveira
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
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André A, Ruivo R, Fonseca E, Froufe E, Castro LFC, Santos MM. The retinoic acid receptor (RAR) in molluscs: Function, evolution and endocrine disruption insights. Aquat Toxicol 2019; 208:80-89. [PMID: 30639747 DOI: 10.1016/j.aquatox.2019.01.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 01/04/2019] [Accepted: 01/04/2019] [Indexed: 06/09/2023]
Abstract
Retinoid acid receptor (RAR)-dependent signalling pathways are essential for the regulation and maintenance of essential biological functions and are recognized targets of disruptive anthropogenic compounds. Recent studies put forward the inability of mollusc RARs to bind and respond to the canonical vertebrate ligand, retinoic acid: a feature that seems to have been lost during evolution. Yet, these studies were carried out in a limited number of molluscs. Therefore, using an in vitro transactivation assay, the present work aimed to characterize phylogenetically relevant mollusc RARs, as monomers or as functional units with RXR, not only in the presence of vertebrate bone fine ligands but also known endocrine disruptors, described to modulate retinoid-dependent pathways. In general, none of the tested mollusc RARs were able to activate reporter gene transcription when exposed to retinoic acid isomers, suggesting that the ability to respond to retinoic acid was lost across molluscs. Similarly, the analysed mollusc RAR were unresponsive towards organochloride pesticides. In contrast, transcriptional repressions were observed with the RAR/RXR unit upon exposure to retinoids or RXR-specific ligands. Loss-of-function and gain-of-function mutations further corroborate the obtained results and suggest that the repressive behaviour, observed with mollusc and human RAR/RXR heterodimers, is possibly mediated by ligand biding to RXR.
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Affiliation(s)
- Ana André
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal; FCUP - Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007, Porto, Portugal; ICBAS - Institute of biomedical Sciences Abel Salazar, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313, Porto, Portugal.
| | - Raquel Ruivo
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal.
| | - Elza Fonseca
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal; FCUP - Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007, Porto, Portugal
| | - Elsa Froufe
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal
| | - L Filipe C Castro
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal; FCUP - Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007, Porto, Portugal.
| | - Miguel M Santos
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal; FCUP - Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007, Porto, Portugal.
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Nzwalo H, Guilherme P, Nogueira J, Félix C, André A, Teles J, Mouzinho M, Ferreira F, Marreiros A, Logallo N, Bentes C. Fine particulate air pollution and occurrence of spontaneous intracerebral hemorrhage in an area of low air pollution. Clin Neurol Neurosurg 2019; 176:67-72. [DOI: 10.1016/j.clineuro.2018.11.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 11/20/2018] [Accepted: 11/30/2018] [Indexed: 01/18/2023]
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Barros S, Montes R, Quintana JB, Rodil R, André A, Capitão A, Soares J, Santos MM, Neuparth T. Chronic environmentally relevant levels of simvastatin disrupt embryonic development, biochemical and molecular responses in zebrafish (Danio rerio). Aquat Toxicol 2018; 201:47-57. [PMID: 29879595 DOI: 10.1016/j.aquatox.2018.05.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 05/16/2018] [Accepted: 05/22/2018] [Indexed: 06/08/2023]
Abstract
Simvastatin (SIM), a hypocholesterolaemic compound, is among the most prescribed pharmaceuticals for cardiovascular disease prevention worldwide. Several studies have shown that acute exposure to SIM causes multiple adverse effects in aquatic organisms. However, uncertainties still remain regarding the chronic effects of SIM in aquatic ecosystems. Therefore, the present study aimed to investigate the effects of SIM in the model freshwater teleost zebrafish (Danio rerio) following a chronic exposure (90 days) to environmentally relevant concentrations ranging from 8 ng/L to 1000 ng/L. This study used a multi-parameter approach integrating distinct ecologically-relevant endpoints, i.e. survival, growth, reproduction and embryonic development, with biochemical markers (cholesterol and triglycerides). Real Time PCR was used to analyse the transcription levels of key genes involved in the mevalonate pathway (hmgcra, cyp51, and dhcr7). Globally, SIM induced several effects that did not follow a dose-response relationship; embryonic development, biochemical and molecular markers, were significantly impacted in the lower concentrations, 8 ng/L, 40 ng/L and/or 200 ng/L, whereas no effects were recorded for the highest tested SIM levels (1000 ng/L). Taken together, these findings expand our understanding of statin effects in teleosts, demonstrating significant impacts at environmentally relevant concentrations and highlight the importance of addressing the effects of chemicals under chronic low-level concentrations.
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Affiliation(s)
- Susana Barros
- CIMAR/CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, Endocrine Disruptors and Emerging Contaminants Group, University of Porto, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
| | - Rosa Montes
- Department of Analytical Chemistry, Nutrition and Food Sciences, IIAA-Institute for Food Analysis and Research, University of Santiago de Compostela, Constantino Candeira S/N, 15782 Santiago de Compostela, Spain
| | - José Benito Quintana
- Department of Analytical Chemistry, Nutrition and Food Sciences, IIAA-Institute for Food Analysis and Research, University of Santiago de Compostela, Constantino Candeira S/N, 15782 Santiago de Compostela, Spain
| | - Rosario Rodil
- Department of Analytical Chemistry, Nutrition and Food Sciences, IIAA-Institute for Food Analysis and Research, University of Santiago de Compostela, Constantino Candeira S/N, 15782 Santiago de Compostela, Spain
| | - Ana André
- CIMAR/CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, Endocrine Disruptors and Emerging Contaminants Group, University of Porto, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
| | - Ana Capitão
- CIMAR/CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, Endocrine Disruptors and Emerging Contaminants Group, University of Porto, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
| | - Joana Soares
- CIMAR/CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, Endocrine Disruptors and Emerging Contaminants Group, University of Porto, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
| | - Miguel M Santos
- CIMAR/CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, Endocrine Disruptors and Emerging Contaminants Group, University of Porto, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; FCUP - Department of Biology, Faculty of Sciences, University of Porto (U. Porto), Porto, Portugal.
| | - Teresa Neuparth
- CIMAR/CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, Endocrine Disruptors and Emerging Contaminants Group, University of Porto, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal.
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André A, Leriche I, Chaix G, Thorin C, Burger M, Nguyen P. Recovery of insulin sensitivity and optimal body composition after rapid weight loss in obese dogs fed a high-protein medium-carbohydrate diet. J Anim Physiol Anim Nutr (Berl) 2018. [PMID: 28627053 DOI: 10.1111/jpn.12744] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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: 12/15/2022]
Abstract
This study investigated the effects of an experimental high-protein medium-carbohydrate diet (protein level, 46% metabolizable energy, ME). First, postprandial plasma glucose and insulin kinetics were determined in steady-state overweight/obese Beagle dogs (28%-41% excess body weight) for an experimental high-protein medium-carbohydrate diet (protein level, 46% ME) and a commercial high-carbohydrate medium-protein diet (protein level, 24%ME) in obese dogs. Secondly, all the dogs were included in a weight loss programme. They were fed the high-protein medium-carbohydrate diet, and the energy allocation was gradually reduced until they reached their optimal body weight. Insulin sensitivity and body composition were evaluated before and after weight loss using a euglycaemic-hyperinsulinaemic clamp and the deuterium oxide dilution technique respectively. For statistical analysis, linear mixed effect models were used with a significance level of 5%. Postprandial plasma glucose and insulin concentrations were substantially lower with the high-protein medium-carbohydrate diet than the high-carbohydrate medium-protein diet. These differences can be explained mainly by the difference in carbohydrate content between the two diets. Energy restriction (35% lower energy intake than in the obese state) resulted in a 2.23 ± 0.05% loss in body weight/week, and the dogs reached their optimal body weight in 12-16 weeks. Weight loss was associated with a significant increase in insulin sensitivity. The high-protein medium-carbohydrate diet allowed fat-free mass preservation despite a relatively high rate of weekly weight loss. The increase in insulin sensitivity indicated improved control of carbohydrate metabolism, possible due to weight loss and to the nature of the diet. Thus, a high-protein medium-carbohydrate diet is a good nutritional solution for managing the weight of overweight dogs. This diet may improve glycaemic control, which could be beneficial for preventing or managing impaired glucose tolerance in obese dogs and for safe and successful weight loss while preserving lean body mass.
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Affiliation(s)
- A André
- UBL, Oniris, National College of Veterinary Medicine, Food Science and Engineering Nantes-Atlantic, Nutrition, Physiopathology and Pharmacology Unit (NP3), Nantes, France
| | | | - G Chaix
- Virbac Medical Department, Carros, France
| | - C Thorin
- UBL, Oniris, National College of Veterinary Medicine, Food Science and Engineering Nantes-Atlantic, Nutrition, Physiopathology and Pharmacology Unit (NP3), Nantes, France
| | - M Burger
- UBL, Oniris, National College of Veterinary Medicine, Food Science and Engineering Nantes-Atlantic, Nutrition, Physiopathology and Pharmacology Unit (NP3), Nantes, France
| | - P Nguyen
- UBL, Oniris, National College of Veterinary Medicine, Food Science and Engineering Nantes-Atlantic, Nutrition, Physiopathology and Pharmacology Unit (NP3), Nantes, France
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André A, Félix A, Shamasna M, Nzwalo H, Basílio C. Neuroendocrine tumour metastatic brain disease during immunosuppressive treatment for paraneoplastic GABA B receptor antibodies encephalitis: Is immunosuppression always beneficial? J Neuroimmunol 2017; 310:66-68. [PMID: 28778447 DOI: 10.1016/j.jneuroim.2017.06.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 06/15/2017] [Accepted: 06/23/2017] [Indexed: 10/19/2022]
Abstract
BACKGROUND Limbic autoimmune encephalitis (LE) should be considered in any patient with acute or subacute neuropsychiatric manifestations, without other common causes of encephalitis. Y-Aminobutyric-acid-B-receptor (anti-GABABR) antibodies are rarely encountered in association with LE. CASE REPORT A 74-year-old patient presented with a progressive cognitive degradation and generalized tonic-clonic seizures, with positive anti-GABABR. He declined under immunosuppression treatment. Control magnetic resonance revealed brain lesions, which became positive for pulmonary neuroendocrine tumour metastatic disease. CONCLUSION The occurrence of diversified neurological manifestations of an underling tumour is difficult to manage. We speculate if in some cases, immunosuppression can itself facilitate tumour progression.
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Affiliation(s)
- Ana André
- Neurology Department, Algarve Hospital Center, Portugal.
| | - Ana Félix
- Neurology Department, Algarve Hospital Center, Portugal
| | | | - Hipólito Nzwalo
- Department of Biomedical Sciences and Medicine, University of Algarve, Portugal
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André A, Ruivo R, Capitão A, Froufe E, Páscoa I, Costa Castro LF, Santos MM. Cloning and functional characterization of a retinoid X receptor orthologue in Platynereis dumerilii: An evolutionary and toxicological perspective. Chemosphere 2017; 182:753-761. [PMID: 28535483 DOI: 10.1016/j.chemosphere.2017.05.064] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 05/06/2017] [Accepted: 05/11/2017] [Indexed: 06/07/2023]
Abstract
In the present work we provide the first isolation and functional characterization of a RXR orthologue in an annelid species, the Platynereis dumerilii. Using an in vitro luciferase reporter assay we evaluated the annelid receptor ability to respond to ligand 9-cis-retinoic acid, TBT and TPT. Our results show that the annelid RXR responds to 9-cis-retinoic acid and to the organotins by activating reporter gene transcription. The findings suggest a conserved mode of action of the receptor in response to a common signaling molecule and modulation by organotin compounds between vertebrates and Lophotrochozoans.
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Affiliation(s)
- Ana André
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal; ICBAS - Institute of Biomedical Sciences Abel Salazar, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313, Porto, Portugal.
| | - Raquel Ruivo
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal.
| | - Ana Capitão
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal; FCUP-Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007, Porto, Portugal
| | - Elsa Froufe
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal.
| | - Inês Páscoa
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal
| | - Luís Filipe Costa Castro
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal; FCUP-Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007, Porto, Portugal.
| | - Miguel Machado Santos
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal; FCUP-Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007, Porto, Portugal.
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Bombled C, André A, Jacquens A, Clarençon F, Degos V. Postoperative neurosurgery complication in 2017: A new window to take into account surgical ischaemic events. Anaesth Crit Care Pain Med 2017; 36:203-204. [PMID: 28780988 DOI: 10.1016/j.accpm.2017.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- C Bombled
- Department of Neuro-Anesthesiology and Intensive Care, Pitié-Salpêtrière University Hospital, Assistance-publique - hôpitaux de Paris, Paris, France; Sorbonne Université, UPMC Paris 6 University, Paris, France
| | - A André
- Sorbonne Université, UPMC Paris 6 University, Paris, France; Department of Neurosurgery, Pitié-Salpêtrière University Hospital, Assistance-publique - hôpitaux de Paris, Paris, France
| | - A Jacquens
- Department of Neuro-Anesthesiology and Intensive Care, Pitié-Salpêtrière University Hospital, Assistance-publique - hôpitaux de Paris, Paris, France; Sorbonne Université, UPMC Paris 6 University, Paris, France
| | - F Clarençon
- Sorbonne Université, UPMC Paris 6 University, Paris, France; Department of Neuroradiology, Pitié-Salpêtrière University Hospital, Assistance-publique - hôpitaux de Paris, Paris, France
| | - V Degos
- Department of Neuro-Anesthesiology and Intensive Care, Pitié-Salpêtrière University Hospital, Assistance-publique - hôpitaux de Paris, Paris, France; Sorbonne Université, UPMC Paris 6 University, Paris, France; Hôpital Robert-Debré, inserm UMR 1141, 48, boulevard Sérurier, 75016 Paris, France.
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André A, Millien V, Galan M, Ribas A, Michaux JR. Effects of parasite and historic driven selection on the diversity and structure of a MHC-II gene in a small mammal species (Peromyscus leucopus) undergoing range expansion. Evol Ecol 2017. [DOI: 10.1007/s10682-017-9898-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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André A, Mouton A, Millien V, Michaux J. Liver microbiome of Peromyscus leucopus, a key reservoir host species for emerging infectious diseases in North America. Infect Genet Evol 2017; 52:10-18. [PMID: 28412525 DOI: 10.1016/j.meegid.2017.04.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 03/31/2017] [Accepted: 04/11/2017] [Indexed: 12/21/2022]
Abstract
Microbiome studies generally focus on the gut microbiome, which is composed of a large proportion of commensal bacteria. Here we propose a first analysis of the liver microbiome using next generation sequencing as a tool to detect potentially pathogenic strains. We used Peromyscus leucopus, the main reservoir host species of Lyme disease in eastern North America, as a model and sequenced V5-V6 regions of the 16S gene from 18 populations in southern Quebec (Canada). The Lactobacillus genus was found to dominate the liver microbiome. We also detected a large proportion of individuals infected by Bartonella vinsonii arupensis, a human pathogenic bacteria responsible for endocarditis, as well as Borrelia burgdorferi, the pathogen responsible for Lyme disease in North America. We then compared the microbiomes among two P. leucopus genetic clusters occurring on either side of the St. Lawrence River, and did not detect any effect of the host genotype on their liver microbiome assemblage. Finally, we report, for the first time, the presence of B. burgdorferi in a small mammal host from the northern side of the St. Lawrence River, in support of models that have predicted the northern spread of Lyme disease in Canada.
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Affiliation(s)
- A André
- Conservation Genetics Laboratory, University of Liège, Boulevard du Rectorat 26, 4000 Liège, Belgium; Redpath Museum, McGill University, 859 Sherbrooke West, Montreal, QC H3A OC4, Canada.
| | - A Mouton
- Conservation Genetics Laboratory, University of Liège, Boulevard du Rectorat 26, 4000 Liège, Belgium
| | - V Millien
- Redpath Museum, McGill University, 859 Sherbrooke West, Montreal, QC H3A OC4, Canada
| | - J Michaux
- Conservation Genetics Laboratory, University of Liège, Boulevard du Rectorat 26, 4000 Liège, Belgium; CIRAD, UR AGIRs, F-34398 Montpellier, France
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André A, Theurer C, Lauth J, Maiti S, Hodas M, Samadi Khoshkhoo M, Kinge S, Meixner AJ, Schreiber F, Siebbeles LDA, Braun K, Scheele M. Structure, transport and photoconductance of PbS quantum dot monolayers functionalized with a copper phthalocyanine derivative. Chem Commun (Camb) 2017; 53:1700-1703. [DOI: 10.1039/c6cc07878h] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We simultaneously surface-functionalize PbS nanocrystals with Cu 4,4′,4′′,4′′′-tetraaminophthalocyanine and assemble this hybrid material into macroscopic monolayers.
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Di Rocco F, André A, Roujeau T, Selek L, Ville Y, Garel C, Zérah M. [Diagnosis, evolution and prognosis of prenatally diagnosed suprasellar cysts]. Neurochirurgie 2016; 62:300-305. [PMID: 27856007 DOI: 10.1016/j.neuchi.2016.09.001] [Citation(s) in RCA: 2] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 08/26/2016] [Accepted: 09/11/2016] [Indexed: 11/16/2022]
Abstract
Suprasellar arachnoid cysts (SAC) in children are considered rare, but the incidence is increasing due to the improvement of prenatal diagnosis. We present 15 cases of SAC diagnosed during the antenatal period between 2005 and 2015. The records were reviewed retrospectively by specifying the radiological characteristics, treatment modalities, outcomes, and long-term monitoring. Mean follow-up was 71 months. The forms (SAC-1) accounted for 2 cases (13%) with hydrocephalus. We observed 8 (53%) lower forms (SAC-2) with interpeduncular cistern expansion without hydrocephalus. The 5 (33.5%) remaining patients showed asymmetrical forms (SAC-3). Six patients (40%) were treated by ventriculo-cysto-cisternostomy, 1 by fetoscopy, 1 (6.5%) by ventriculo-peritoneal shunt, 2 (13.5%) by pterional craniotomy, and 6 (40%) were simply followed. The surgical outcomes were initially favorable in 9 cases (100%), 1 patient (13%) had to be re-treated later. Non-operated patients were all type 2 and showed no radiological changes. In the long-term, 1 patient (6.5%) had endocrine disruption, 1 had delayed development, 2 (13.5%) had minor neuropsychological impairments, and 1 had epilepsy. Combined monitoring with prenatal MRI and ultrasound can be used to distinguish three subtypes of SAC. SAC-1 and SAC-3 have an excellent prognosis after treatment in the perinatal period. SAC-2 can benefit from simple monitoring and remain asymptomatic in their majority. This classification allows a better prognosis estimation and better treatment decision.
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Affiliation(s)
- F Di Rocco
- Service de neurochirurgie pédiatrique, hôpital Necker-Enfants-Malades, AP-HP, 149, rue de Sèvres, 75743 Paris cedex 15, France.
| | - A André
- Service de neurochirurgie pédiatrique, hôpital Necker-Enfants-Malades, AP-HP, 149, rue de Sèvres, 75743 Paris cedex 15, France
| | - T Roujeau
- Service de neurochirurgie pédiatrique, hôpital Necker-Enfants-Malades, AP-HP, 149, rue de Sèvres, 75743 Paris cedex 15, France
| | - L Selek
- Service de neurochirurgie pédiatrique, hôpital Necker-Enfants-Malades, AP-HP, 149, rue de Sèvres, 75743 Paris cedex 15, France
| | - Y Ville
- Service de gynécologie-obstétrique, hôpital Necker-Enfants-Malades, AP-HP, Paris, France
| | - C Garel
- Service de radiologie pédiatrique, hôpital Armand-Trousseau, AP-HP, Paris, France
| | - M Zérah
- Service de neurochirurgie pédiatrique, hôpital Necker-Enfants-Malades, AP-HP, 149, rue de Sèvres, 75743 Paris cedex 15, France
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Gesto M, Ruivo R, Páscoa I, André A, Castro LFC, Santos MM. Retinoid level dynamics during gonad recycling in the limpet Patella vulgata. Gen Comp Endocrinol 2016; 225:142-148. [PMID: 26597622 DOI: 10.1016/j.ygcen.2015.10.017] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 10/14/2015] [Accepted: 10/22/2015] [Indexed: 12/30/2022]
Abstract
Germ cell commitment and meiosis initiation are among the multitude of physiological roles of retinoic acid (RA) in vertebrates. Acting via receptor-mediated transcription, RA induces the expression of meiotic factors, triggering meiosis. Contrasting with vertebrates, invertebrate RA metabolism is scarcely understood. Still, some physiological processes appear to be conserved. Here we set to evaluate the role of retinoids in the gonad maturation process of the marine gastropod Patella vulgata. We found that retinoid concentration in gonadal tissue, namely RA, varies between breeding and resting specimens, with maxima attained in the latter. Additionally, we isolated and quantified the expression of both the retinoic acid receptor (RAR) and the retinoid X receptor (RXR) in gonads. In view of the stability of retinoid receptor expression, we suggest that the balance of RA levels operates through the enzymatic control of synthetic and catabolic processes. Overall, the reported data are supportive for a developmental role of RA during gonadal maturation in P. vulgata, which should be addressed in other protostome lineages.
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Affiliation(s)
- M Gesto
- CIMAR/CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal; Laboratorio de Fisioloxía Animal, Facultade de Bioloxía, Universidade de Vigo, 36310 Vigo, Spain
| | - R Ruivo
- CIMAR/CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal.
| | - I Páscoa
- CIMAR/CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal
| | - A André
- CIMAR/CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal; ICBAS - Institute of Biomedical Sciences of Abel Salazar, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - L F C Castro
- CIMAR/CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal; FCUP - Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal
| | - M M Santos
- CIMAR/CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal; FCUP - Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal.
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Lyssimachou A, Santos JG, André A, Soares J, Lima D, Guimarães L, Almeida CMR, Teixeira C, Castro LFC, Santos MM. The Mammalian "Obesogen" Tributyltin Targets Hepatic Triglyceride Accumulation and the Transcriptional Regulation of Lipid Metabolism in the Liver and Brain of Zebrafish. PLoS One 2015; 10:e0143911. [PMID: 26633012 PMCID: PMC4669123 DOI: 10.1371/journal.pone.0143911] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Accepted: 11/11/2015] [Indexed: 12/18/2022] Open
Abstract
Recent findings indicate that different Endocrine Disrupting Chemicals (EDCs) interfere with lipid metabolic pathways in mammals and promote fat accumulation, a previously unknown site of action for these compounds. The antifoulant and environmental pollutant tributyltin (TBT), which causes imposex in gastropod snails, induces an “obesogenic” phenotype in mammals, through the activation of the nuclear receptors retinoid X receptor (RXR) and peroxisome proliferator-activated receptor gamma (PPARγ). In teleosts, the effects of TBT on the lipid metabolism are poorly understood, particularly following exposure to low, environmental concentrations. In this context, the present work shows that exposure of zebrafish to 10 and 50 ng/L of TBT (as Sn) from pre-hatch to 9 months of age alters the body weight, condition factor, hepatosomatic index and hepatic triglycerides in a gender and dose related manner. Furthermore, TBT modulated the transcription of key lipid regulating factors and enzymes involved in adipogenesis, lipogenesis, glucocorticoid metabolism, growth and development in the brain and liver of exposed fish, revealing sexual dimorphic effects in the latter. Overall, the present study shows that the model mammalian obesogen TBT interferes with triglyceride accumulation and the transcriptional regulation of lipid metabolism in zebrafish and indentifies the brain lipogenic transcription profile of fish as a new target of this compound.
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Affiliation(s)
- Angeliki Lyssimachou
- CIMAR/CIIMAR-AL, Interdisciplinary Centre of Marine and Environmental Research, Rua dos Bragas 289, 4050–123, Porto, Portugal
- * E-mail: (AL); (LFCC); (MMS)
| | - Joana G. Santos
- CIMAR/CIIMAR-AL, Interdisciplinary Centre of Marine and Environmental Research, Rua dos Bragas 289, 4050–123, Porto, Portugal
| | - Ana André
- CIMAR/CIIMAR-AL, Interdisciplinary Centre of Marine and Environmental Research, Rua dos Bragas 289, 4050–123, Porto, Portugal
| | - Joana Soares
- CIMAR/CIIMAR-AL, Interdisciplinary Centre of Marine and Environmental Research, Rua dos Bragas 289, 4050–123, Porto, Portugal
| | - Daniela Lima
- CIMAR/CIIMAR-AL, Interdisciplinary Centre of Marine and Environmental Research, Rua dos Bragas 289, 4050–123, Porto, Portugal
| | - Laura Guimarães
- CIMAR/CIIMAR-AL, Interdisciplinary Centre of Marine and Environmental Research, Rua dos Bragas 289, 4050–123, Porto, Portugal
| | - C. Marisa R. Almeida
- CIMAR/CIIMAR-AL, Interdisciplinary Centre of Marine and Environmental Research, Rua dos Bragas 289, 4050–123, Porto, Portugal
| | - Catarina Teixeira
- CIMAR/CIIMAR-AL, Interdisciplinary Centre of Marine and Environmental Research, Rua dos Bragas 289, 4050–123, Porto, Portugal
| | - L. Filipe C. Castro
- CIMAR/CIIMAR-AL, Interdisciplinary Centre of Marine and Environmental Research, Rua dos Bragas 289, 4050–123, Porto, Portugal
- * E-mail: (AL); (LFCC); (MMS)
| | - Miguel M. Santos
- CIMAR/CIIMAR-AL, Interdisciplinary Centre of Marine and Environmental Research, Rua dos Bragas 289, 4050–123, Porto, Portugal
- FCUP–Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal
- * E-mail: (AL); (LFCC); (MMS)
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Teixeira C, Ribeiro S, Martins C, Trabulo D, Praxedes V, Mangualde J, Trindade C, André A, Alves A, Cremers I, Cortez L, Oliveira A. MON-PP216: Intragastric Balloon for Obesity Treatment: Alone or in the Setting of Bariatric Surgery? Clin Nutr 2015. [DOI: 10.1016/s0261-5614(15)30648-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Teixeira C, Ribeiro S, Martins C, Trabulo D, Praxedes V, Mangualde J, Trindade C, André A, Alves A, Cremers I, Cortez L, Oliveira A. MON-PP215: Bariatric Surgery: Improval in Weight Loss and Obesity Comorbidities. Clin Nutr 2015. [DOI: 10.1016/s0261-5614(15)30647-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Joaquim J, André A, Justino V, Pires T, Matos C, Rocha M. Diffuse Hepatic changes caused by oral contraceptives. Clin Ther 2015. [DOI: 10.1016/j.clinthera.2015.05.247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Arthozoul M, Brun C, Laffosse JM, Martinel V, Grolleau JL, André A. Avulsion of flexor digitorum profundus secondary to enchondroma of the distal phalanx. Case report and literature review. ACTA ACUST UNITED AC 2015. [PMID: 26204827 DOI: 10.1016/j.main.2015.03.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 11/30/2022]
Abstract
We report an unusual case of avulsion of the flexor digitorum profundus tendon of the ring finger at its insertion, in combination with a pathological fracture of the distal phalanx due to enchondroma. The bone lesion was curetted and grafted using autogenous bone. The FDP tendon was reattached to the distal phalanx using the pullout technique. We describe this case in detail and discuss the surgical management through a review of literature.
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Affiliation(s)
- M Arthozoul
- Unité de chirurgie de la main et chirurgie réparatrice des membres, institut de l'appareil locomoteur, hôpital Pierre-Paul-Riquet, CHU de Toulouse, place Baylac, 31059 Toulouse cedex, France
| | - C Brun
- Service de radiologie, hôpital Pierre-Paul-Riquet, CHU de Toulouse, place Baylac, 31059 Toulouse cedex, France
| | - J-M Laffosse
- Unité de chirurgie de la main et chirurgie réparatrice des membres, institut de l'appareil locomoteur, hôpital Pierre-Paul-Riquet, CHU de Toulouse, place Baylac, 31059 Toulouse cedex, France
| | - V Martinel
- Polyclinique de l'Ormeau, 12, chemin de l'Ormeau, 65000 Tarbes, France
| | - J-L Grolleau
- Unité de chirurgie de la main et chirurgie réparatrice des membres, institut de l'appareil locomoteur, hôpital Pierre-Paul-Riquet, CHU de Toulouse, place Baylac, 31059 Toulouse cedex, France
| | - A André
- Unité de chirurgie de la main et chirurgie réparatrice des membres, institut de l'appareil locomoteur, hôpital Pierre-Paul-Riquet, CHU de Toulouse, place Baylac, 31059 Toulouse cedex, France.
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Coimbra AM, Peixoto MJ, Coelho I, Lacerda R, Carvalho AP, Gesto M, Lyssimachou A, Lima D, Soares J, André A, Capitão A, Castro LFC, Santos MM. Chronic effects of clofibric acid in zebrafish (Danio rerio): a multigenerational study. Aquat Toxicol 2015; 160:76-86. [PMID: 25621398 DOI: 10.1016/j.aquatox.2015.01.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [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: 09/12/2014] [Revised: 01/08/2015] [Accepted: 01/15/2015] [Indexed: 06/04/2023]
Abstract
Clofibric acid (CA) is an active metabolite of the blood lipid lowering agent clofibrate, a pharmaceutical designed to work as agonist of peroxisome proliferator-activated receptor alpha (PPARa). It is the most commonly reported fibrate in aquatic environments with low degradation rate and potential environmental persistence. Previous fish exposures showed that CA may impact spermatogenesis, growth and the expression of fat binding protein genes. However, there are limited data on the effects of chronic multigenerational CA exposures. Here, we assessed chronic multigenerational effects of CA exposure using zebrafish (Danio rerio) as a teleost model. Zebrafish were exposed through the diet to CA (1 and 10mg/g) during their whole lifetime. Growth, reproduction-related parameters and embryonic development were assessed in the exposed fish (F1 generation) and their offspring (F2 generation), together with muscle triglyceride content and gonad histology. In order to study the potential underlying mechanisms, the transcription levels of genes coding for enzymes involved in lipid metabolism pathways were determined. The results show that chronic life-cycle exposure to CA induced a significant reduction in growth of F1 generation and lowered triglyceride muscle content (10mg/g group). Also, an impact in male gonad development was observed together with a decrease in the fecundity (10mg/g group) and higher frequency of embryo abnormalities in the offspring of fish exposed to the lowest CA dose. The profile of the target genes was sex- and tissue-dependent. In F1 an up-regulation of male hepatic pparaa, pparb and acox transcript levels was observed, suggesting an activation of the fatty acid metabolism (provided that transcript level change indicates also a protein level change). Interestingly, the F2 generation, raised with control diet, displayed a response pattern different from that observed in F1, showing an increase in weight in the descendants of CA exposed fish, in comparison with control animals, which points to a multigenerational effect.
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Affiliation(s)
- Ana M Coimbra
- Centre for The Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro (UTAD), Quinta de Prados, 5000-801 Vila Real, Portugal; Department of Biology and Environment, Life Sciences and Environment School (ECVA), University of Trás-os-Montes e Alto Douro (UTAD), Quinta de Prados, 5000-801 Vila Real, Portugal.
| | - Maria João Peixoto
- CIMAR/CIIMAR, Interdisciplinary Centre for Marine and Environmental Research, University of Porto, Rua dos Bragas 177, 4050-123 Porto, Portugal; Department of Biology and Environment, Life Sciences and Environment School (ECVA), University of Trás-os-Montes e Alto Douro (UTAD), Quinta de Prados, 5000-801 Vila Real, Portugal
| | - Inês Coelho
- CIMAR/CIIMAR, Interdisciplinary Centre for Marine and Environmental Research, University of Porto, Rua dos Bragas 177, 4050-123 Porto, Portugal
| | - Ricardo Lacerda
- CIMAR/CIIMAR, Interdisciplinary Centre for Marine and Environmental Research, University of Porto, Rua dos Bragas 177, 4050-123 Porto, Portugal
| | - António Paulo Carvalho
- CIMAR/CIIMAR, Interdisciplinary Centre for Marine and Environmental Research, University of Porto, Rua dos Bragas 177, 4050-123 Porto, Portugal; FCUP, Faculty of Sciences University of Porto, Department of Biology, Rua do Campo Alegre, 4169-007 Porto, Portugal
| | - Manuel Gesto
- CIMAR/CIIMAR, Interdisciplinary Centre for Marine and Environmental Research, University of Porto, Rua dos Bragas 177, 4050-123 Porto, Portugal; Department of Functional Biology and Health Sciences, Faculty of Biology, University of Vigo, As Lagoas-Marcosende s/n, 36310, Vigo, Spain
| | - Angeliki Lyssimachou
- CIMAR/CIIMAR, Interdisciplinary Centre for Marine and Environmental Research, University of Porto, Rua dos Bragas 177, 4050-123 Porto, Portugal
| | - Daniela Lima
- CIMAR/CIIMAR, Interdisciplinary Centre for Marine and Environmental Research, University of Porto, Rua dos Bragas 177, 4050-123 Porto, Portugal
| | - Joana Soares
- CIMAR/CIIMAR, Interdisciplinary Centre for Marine and Environmental Research, University of Porto, Rua dos Bragas 177, 4050-123 Porto, Portugal
| | - Ana André
- CIMAR/CIIMAR, Interdisciplinary Centre for Marine and Environmental Research, University of Porto, Rua dos Bragas 177, 4050-123 Porto, Portugal
| | - Ana Capitão
- CIMAR/CIIMAR, Interdisciplinary Centre for Marine and Environmental Research, University of Porto, Rua dos Bragas 177, 4050-123 Porto, Portugal
| | - Luís Filipe C Castro
- CIMAR/CIIMAR, Interdisciplinary Centre for Marine and Environmental Research, University of Porto, Rua dos Bragas 177, 4050-123 Porto, Portugal; FCUP, Faculty of Sciences University of Porto, Department of Biology, Rua do Campo Alegre, 4169-007 Porto, Portugal
| | - Miguel M Santos
- CIMAR/CIIMAR, Interdisciplinary Centre for Marine and Environmental Research, University of Porto, Rua dos Bragas 177, 4050-123 Porto, Portugal; FCUP, Faculty of Sciences University of Porto, Department of Biology, Rua do Campo Alegre, 4169-007 Porto, Portugal.
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Lima D, Castro LFC, Coelho I, Lacerda R, Gesto M, Soares J, André A, Capela R, Torres T, Carvalho AP, Santos MM. Effects of Tributyltin and Other Retinoid Receptor Agonists in Reproductive-Related Endpoints in the Zebrafish (Danio rerio). J Toxicol Environ Health A 2015; 78:747-60. [PMID: 26090559 DOI: 10.1080/15287394.2015.1028301] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Both field and experimental data examined the influence of exposure to environmental contaminant tributyltin (TBT) on marine organisms. Although most attention focused on the imposex phenomenon in gastropods, adverse effects were also observed in other taxonomic groups. It has been shown that imposex induction involves modulation of retinoid signaling in gastropods. Whether TBT influences similar pathways in fish is yet to be addressed. In this study, larvae of the model teleost Danio rerio were exposed to natural retinoids, all-trans-retinoic acid, 9-cis-retinoic acid, and all-trans-retinol, as well as to the RXR synthetic pan-agonist methoprene acid (MA) and to TBT. Larvae were exposed to TBT from 5 days post fertilization (dpf) to adulthood, and reproductive capacity was assessed and correlated with mode of action. TBT significantly decreased fecundity at environmentally relevant levels at 1 μg TBT Sn/g in diet. Interestingly, in contrast to previous reports, TBT altered zebrafish sex ratio toward females, whereas MA exposure biased sex toward males. Since fecundity was significantly altered in the TBT-exposed group with up to 62% decrease, the potentially affected pathways were investigated. Significant downregulation was observed in brain mRNA levels of aromatase b (CYP19a1b) in females and peroxisome proliferator activated receptor gamma (PPARg) in both males and females, suggesting an involvement of these pathways in reproductive impairment associated with TBT.
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Affiliation(s)
- Daniela Lima
- a Interdisciplinary Centre for Marine and Environmental Research (CIIMAR), CIMAR Associate Laboratory , University of Porto Porto , Portugal
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André A, Ruivo R, Gesto M, Castro LFC, Santos MM. Retinoid metabolism in invertebrates: when evolution meets endocrine disruption. Gen Comp Endocrinol 2014; 208:134-45. [PMID: 25132059 DOI: 10.1016/j.ygcen.2014.08.005] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 07/20/2014] [Accepted: 08/07/2014] [Indexed: 02/07/2023]
Abstract
Recent genomic and biochemical evidence in invertebrate species pushes back the origin of the retinoid metabolic and signaling modules to the last common ancestor of all bilaterians. However, the evolution of retinoid pathways are far from fully understood. In the majority of non-chordate invertebrate lineages, the ongoing functional characterization of retinoid-related genes (metabolism and signaling pathways), as well as the characterization of the endogenous retinoid content (precursors and active retinoids), is still incomplete. Despite limited, the available data supports the presence of biologically active retinoid pathways in invertebrates. Yet, the mechanisms controlling the spatial and temporal distribution of retinoids as well as their physiological significance share similarities and differences with vertebrates. For instance, retinol storage in the form of retinyl esters, a key feature for the maintenance of retinoid homeostatic balance in vertebrates, was only recently demonstrated in some mollusk species, suggesting that such ability is older than previously anticipated. In contrast, the enzymatic repertoire involved in this process is probably unlike that of vertebrates. The suggested ancestry of active retinoid pathways implies that many more metazoan species might be potential targets for endocrine disrupting chemicals. Here, we review the current knowledge about the occurrence and functionality of retinoid metabolic and signaling pathways in invertebrate lineages, paying special attention to the evolutionary origin of retinoid storage mechanisms. Additionally, we summarize existing information on the endocrine disruption of invertebrate retinoid modules by environmental chemicals. Research priorities in the field are highlighted.
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Affiliation(s)
- A André
- CIMAR/CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal; ICBAS - Institute of Biomedical Sciences Abel Salazar, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - R Ruivo
- CIMAR/CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal.
| | - M Gesto
- Laboratorio de Fisioloxía Animal, Facultade de Bioloxía, Universidade de Vigo, 36310 Vigo, Spain.
| | - L Filipe C Castro
- CIMAR/CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal; FCUP - Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal.
| | - M M Santos
- CIMAR/CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal; FCUP - Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal.
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Chanel L, Grolleau JL, Lauwers F, André A. Z-plasty lengthening of the flexor digitorum profundus at the wrist (zone 5) for the treatment of jersey finger: anatomical study and evaluation of advancement obtained. J Plast Reconstr Aesthet Surg 2014; 67:e189-94. [PMID: 24888225 DOI: 10.1016/j.bjps.2014.04.025] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Revised: 04/11/2014] [Accepted: 04/29/2014] [Indexed: 11/19/2022]
Abstract
AIM The aim of this study was to conduct an anatomical evaluation of advancement obtained from Z-plasty lengthening of the flexor digitorum profundus at the wrist (zone 5) for the treatment of jersey finger. INTRODUCTION The avulsion of the flexor digitorum profundus from its distal insertion, or jersey finger, is an injury commonly missed in the accident and emergency department. Typically, after 3 weeks, the retracted tendon stump prevents direct reinsertion of the tendon. Sawaya et al. have proposed a treatment involving a zone 5 Z-plasty lengthening on the fourth finger. We conducted an anatomical study to evaluate the tendon advancement that could be obtained in the long digits using this method. METHOD Tendon avulsion was recreated in 17 fresh cadaver hands by severing the flexor digitorum profundus from its distal insertion. A 3-, 4- or 5-cm Z-plasty was performed at the wrist and, after section of the vinculum breve, the advancement was measured with wrist extension at 0°. RESULTS A total of 68 tendon reconstructions were performed. The mean advancement obtained was 1.5 cm (max: 2.5 cm; min: 0.5 cm), 2.3 cm (max: 3.2 cm; min: 1.3 cm) and 2.5 cm (max: 3.5 cm; min: 1.7 cm) for 3-, 4- and 5-cm Z-plasties, respectively. Tendon advancement in the ring finger and middle finger was limited by the lumbrical (2 cases) or by synovial adhesions in the carpal tunnel (16 cases). There was no such limitation for the index finger. DISCUSSION Advancement of the flexor digitorum profundus by a 4-cm Z-plasty at the wrist seems to be a useful technique for reinsertion of a retracted tendon. The best results were obtained in the index finger. This technique could be considered as an alternative to palliative surgery or a tendon graft. In the other fingers, the fact that advancement was limited due to Verdan's quadriga effect and synovial adhesions highlights the significance of the relationship between the tendons themselves and with their environment on the physiology of finger flexion.
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Affiliation(s)
- L Chanel
- Plastic Surgery, Reconstruction and Burns Unit, Rangueil University Hopsital Centre, 1 Avenue du Pr Jean Poulhès, TSA 31059 Toulouse Cedex, France.
| | - J-L Grolleau
- Plastic Surgery, Reconstruction and Burns Unit, Rangueil University Hopsital Centre, 1 Avenue du Pr Jean Poulhès, TSA 31059 Toulouse Cedex, France
| | - F Lauwers
- Rangueil Anatomy Laboratory, Toulouse-Rangueil Toulouse Medical Faculty, 133 route de Narbonne, 31063 Toulouse, France
| | - A André
- Plastic Surgery, Reconstruction and Burns Unit, Rangueil University Hopsital Centre, 1 Avenue du Pr Jean Poulhès, TSA 31059 Toulouse Cedex, France; Rangueil Anatomy Laboratory, Toulouse-Rangueil Toulouse Medical Faculty, 133 route de Narbonne, 31063 Toulouse, France
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André A, Crouzet C, De Boissezon X, Grolleau JL. [Thigh and leg musculo-cutaneous island flap for giant bilateral trochanteric and perineal pressure sores coverage: Extreme treatment in spinal cord injury]. ANN CHIR PLAST ESTH 2014; 60:226-30. [PMID: 24503520 DOI: 10.1016/j.anplas.2014.01.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Accepted: 01/05/2014] [Indexed: 10/25/2022]
Abstract
INTRODUCTION Surgical treatment of perineal pressure sores could be done with various fascio-cutaneous or musculo-cutaneous flaps, which provide cover and filling of most of pressure sores after spinal cord injuries. In rare cases, classical solutions are overtaken, then it is necessary to use more complex techniques. We report a case of a made-to-measure lower limb flap for coverage of confluent perineal pressure sores. PATIENT AND METHOD A 49-year-old paraplegic patient developed multiple pressure sores on left and right ischial tuberosity, inferior pubic bone and bilateral trochanters with hips dislocation. Surgical treatment involved a whole right thigh flap to cover and fill right side lesions, associated to a posterior right leg musculo-cutaneous island flap to cover and fill the left trochanteric pressure sore. RESULT The surgical procedure lasted 6.5 hours and required massive blood transfusion. Antibiotics were adapted to bacteriological samples. There were no postoperative complications; complete wound healing occurred after three weeks. DISCUSSION A lower limb sacrifice for coverage of a giant perineal pressure sores is an extreme surgical solution, reserved to patients understanding the issues of this last chance procedure. A good knowledge of vascular anatomy is an essential prerequisite, and allows to shape made-to-measure flaps. The success of such a procedure is closely linked to the collaboration with the rehabilitation team (appropriate therapeutic education concerning transfers and positioning).
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Affiliation(s)
- A André
- Service de chirurgie plastique, reconstructrice et des brûlés, CHU Rangueil, 1, avenue du Pr-Jeau-Poulhès, 31059 Toulouse cedex, France.
| | - C Crouzet
- Service de chirurgie plastique, reconstructrice et des brûlés, CHU Rangueil, 1, avenue du Pr-Jeau-Poulhès, 31059 Toulouse cedex, France
| | - X De Boissezon
- Service de médecine physique et réadaptation, CHU Rangueil, 1, avenue du Pr-Jeau-Poulhès, 31059 Toulouse cedex, France
| | - J-L Grolleau
- Service de chirurgie plastique, reconstructrice et des brûlés, CHU Rangueil, 1, avenue du Pr-Jeau-Poulhès, 31059 Toulouse cedex, France
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Ho Quoc C, Chaput B, Garrido I, André A, Grolleau JL, Chavoin JP. Correction des asymétries mammaires associées au pectus excavatum primaire. ANN CHIR PLAST ESTH 2013; 58:54-9. [DOI: 10.1016/j.anplas.2012.07.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2012] [Accepted: 07/10/2012] [Indexed: 11/16/2022]
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Chaput B, Lauwers F, Lopez R, Saboye J, André A, Grolleau JL, Chavoin JP. [Nose surgical anatomy in six aesthetic subunits]. ANN CHIR PLAST ESTH 2012; 58:132-45. [PMID: 22699003 DOI: 10.1016/j.anplas.2012.05.002] [Citation(s) in RCA: 5] [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: 10/08/2011] [Accepted: 05/05/2012] [Indexed: 11/29/2022]
Abstract
The nose is a complex entity, combining aesthetic and functional roles. Descriptive anatomy is a fundamental science that it can be difficult to relate directly to our daily surgical activity. Reasoning in terms of aesthetic subunits to decide on his actions appeared to us so obvious. The aim of this paper is to resume the anatomical bases relevant to our daily practice in order to fully apprehend the restorative or cosmetic procedures. We discuss the limits of the systematization of these principles in nasal oncology.
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Affiliation(s)
- B Chaput
- Service de chirurgie plastique, reconstructrice et des brûlés, CHU Rangueil, avenue Jean-Poulhès, 31059 Toulouse, France.
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André A, Karachi C, Bertasi E, Bardinet E, Bernard F. Imagerie fontionnelle du mésencéphale latéral : une aire intégrative pour la locomotion chez l’homme, une cible pour les troubles de la marche. Neurochirurgie 2011. [DOI: 10.1016/j.neuchi.2011.09.088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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André A, Hamdi S, Mathon B, Baumann F, Aldahak N, Poczos P, Polivka M, George B. Gangliogliomes intracérébraux de l’adulte : une série de 30 patients. Neurochirurgie 2011. [DOI: 10.1016/j.neuchi.2011.09.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Baumann F, Makiese O, Mathon B, André A, Aldahak N, Poczos P, Orabi M, Saint-Maurice JP, George B, Houdart E, Chibbaro S. Traitement chirurgical des fistules artério-veineuses durales rachidiennes (FAVDR) : une série consécutive de 30 patients. Neurochirurgie 2011. [DOI: 10.1016/j.neuchi.2011.09.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Chavoin JP, André A, Bozonnet E, Teisseyre A, Arrue J, Moreno B, Gangloff D, Grolleau JL, Garrido I. Apport de l’informatique à la sélection des implants mammaires ou à la fabrication sur mesure des implants thoraciques. ANN CHIR PLAST ESTH 2010; 55:471-80. [DOI: 10.1016/j.anplas.2010.08.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2010] [Accepted: 08/03/2010] [Indexed: 11/26/2022]
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André A, Antunes SC, Gonçalves F, Pereira R. Bait-lamina assay as a tool to assess the effects of metal contamination in the feeding activity of soil invertebrates within a uranium mine area. Environ Pollut 2009; 157:2368-2377. [PMID: 19361901 DOI: 10.1016/j.envpol.2009.03.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2008] [Revised: 03/11/2009] [Accepted: 03/18/2009] [Indexed: 05/27/2023]
Abstract
As part of the tier 2 of a site-specific risk assessment, this study was the first reporting an intensive in situ application of the bait-lamina assay; two exposure periods (7 and 14 days) were tested during four seasons in ten different sites, within a uranium mine area and at two different depths. The most contaminated sites (by deposition of sludge from the effluent treatment pond) were discriminated after 14 days of exposure because extremely low percentages of feeding activity were recorded. Previous sub-lethal ecotoxicological assays, already had demonstrated that the habitat function of these soils is compromised. Nevertheless, seasonality has proved to have a significant influence on responses. Thus to strength conclusions about the impact of contaminants, the in situ bait-lamina assay should be performed on different annual seasons, at least for temperate regions. It was also found that some environmental parameters (e.g. soil moisture and litter) can act as confounding factors in the bait-lamina assay.
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Affiliation(s)
- A André
- CESAM (Centro de Estudos do Ambiente e do Mar) & Departamento de Biologia, Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
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André A, Grolleau JL, Garrido I, Guitard J, Chavoin JP. Hernie pariétale post-traumatique.Technique de réparation pariétale, à propos d’un cas. ANN CHIR PLAST ESTH 2008; 53:452-6. [DOI: 10.1016/j.anplas.2007.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2007] [Accepted: 10/10/2007] [Indexed: 11/27/2022]
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