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Bard I, Gaskell G, Allansdottir A, da Cunha RV, Eduard P, Hampel J, Hildt E, Hofmaier C, Kronberger N, Laursen S, Meijknecht A, Nordal S, Quintanilha A, Revuelta G, Saladié N, Sándor J, Santos JB, Seyringer S, Singh I, Somsen H, Toonders W, Torgersen H, Torre V, Varju M, Zwart H. Bottom Up Ethics - Neuroenhancement in Education and Employment. NEUROETHICS-NETH 2018; 11:309-322. [PMID: 30220937 PMCID: PMC6132847 DOI: 10.1007/s12152-018-9366-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 04/18/2018] [Indexed: 10/28/2022]
Abstract
Neuroenhancement involves the use of neurotechnologies to improve cognitive, affective or behavioural functioning, where these are not judged to be clinically impaired. Questions about enhancement have become one of the key topics of neuroethics over the past decade. The current study draws on in-depth public engagement activities in ten European countries giving a bottom-up perspective on the ethics and desirability of enhancement. This informed the design of an online contrastive vignette experiment that was administered to representative samples of 1000 respondents in the ten countries and the United States. The experiment investigated how the gender of the protagonist, his or her level of performance, the efficacy of the enhancer and the mode of enhancement affected support for neuroenhancement in both educational and employment contexts. Of these, higher efficacy and lower performance were found to increase willingness to support enhancement. A series of commonly articulated claims about the individual and societal dimensions of neuroenhancement were derived from the public engagement activities. Underlying these claims, multivariate analysis identified two social values. The Societal/Protective highlights counter normative consequences and opposes the use enhancers. The Individual/Proactionary highlights opportunities and supports use. For most respondents these values are not mutually exclusive. This suggests that for many neuroenhancement is viewed simultaneously as a source of both promise and concern.
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Affiliation(s)
- Imre Bard
- Department of Methodology, London School of Economics, London, UK
| | - George Gaskell
- Department of Methodology, London School of Economics, London, UK
| | | | | | - Peter Eduard
- Experimentarium, Science Communication Centre, Copenhagen, Denmark
| | - Juergen Hampel
- Center for Interdisciplinary Risk and Innovation Studies, Stuttgart University, Stuttgart, Germany
| | - Elisabeth Hildt
- Center for the Study of Ethics in the Professions, Illinois Institute of Technology, Chicago, IL USA
| | - Christian Hofmaier
- Center for Interdisciplinary Risk and Innovation Studies, Stuttgart University, Stuttgart, Germany
| | - Nicole Kronberger
- Department of Social and Economic Psychology, Johannes Kepler University, Linz, Austria
| | - Sheena Laursen
- Experimentarium, Science Communication Centre, Copenhagen, Denmark
| | - Anna Meijknecht
- Tilburg Institute for Law, Technology, and Society, Tilburg University, Tilburg, The Netherlands
| | - Salvör Nordal
- Centre for Ethics University of Iceland, Reykjavik, Iceland
| | | | - Gema Revuelta
- Centre on Science, Communication and Society Universitat Pompeu Fabra, Barcelona, Spain
| | - Núria Saladié
- Centre on Science, Communication and Society Universitat Pompeu Fabra, Barcelona, Spain
| | - Judit Sándor
- The Center for Ethics and Law in Biomedicine Central European University, Budapest, Hungary
| | | | - Simone Seyringer
- Department of Social and Economic Psychology, Johannes Kepler University, Linz, Austria
| | - Ilina Singh
- Department of Psychiatry and Oxford Uehiro Centre University of Oxford, Oxford, UK
| | - Han Somsen
- Tilburg Institute for Law, Technology, and Society, Tilburg University, Tilburg, The Netherlands
| | - Winnie Toonders
- Institute for Science, Innovation and Society, Radboud University Nijmegen, Nijmegen, The Netherlands
| | - Helge Torgersen
- Institute of Technology Assessment Austrian Academy of Sciences, Vienna, Austria
| | - Vincent Torre
- Centre for Neurobiology, International School for Advanced Studies, Trieste, Italy
| | - Márton Varju
- The Center for Ethics and Law in Biomedicine Central European University, Budapest, Hungary
| | - Hub Zwart
- Institute for Science, Innovation and Society, Radboud University Nijmegen, Nijmegen, The Netherlands
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Costa E, Rocha S, Rocha-Pereira P, Castro E, Reis F, Teixeira F, Miranda V, Faria MDS, Loureiro A, Quintanilha A, Belo L, Santos-Silva A. Cross-Talk between Inflammation, Coagulation/Fibrinolysis and Vascular access in Hemodialysis Patients. J Vasc Access 2018. [DOI: 10.1177/112972980800900405] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This work aimed to study the association between fibrinolytic/endothelial cell function and inflammatory markers in chronic kidney disease (CKD) patients undergoing hemodialysis (HD) and recombinant human erythropoietin (rhEPO) therapies, and its relationship with the type of vascular access (VA) used for the HD procedure. As fibrinolytic/endothelial cell function markers we evaluated plasminogen activator inhibitor type-1 (PAI-1), tissue plasminogen activator (tPA) and D-dimers, and as inflammatory markers; C-reactive protein (CRP), soluble interleukin (IL)-2 receptor (s-IL2R), IL-6 and serum albumin levels. The study was performed in 50 CKD patients undergoing regular HD, 11 with a central venous dialysis catheter (CVC) and 39 with an arteriovenous fistula (AVF), and in 25 healthy controls. Compared to controls, CKD patients presented with significantly higher levels of CRP, s-IL2R, IL-6 and D-dimers, and significantly lower levels of PAI-1. The tPA/PAI-1 ratio was significantly higher in CKD patients. We also found statistical significant correlations in CKD patients between D-dimers levels and inflammatory markers: CRP, albumin, s-IL2R and IL-6. When comparing the two groups of CKD patients, we found that those with a CVC presented statistically significant lower levels of hemoglobin concentration and albumin, and higher levels of CRP, IL-6, D-dimers and tPA. Our results showed an association between fibrinolytic/endothelial cell function and increased inflammatory markers in CKD patients. The increased levels of D-dimer, tPA and inflammatory markers in CKD patients using a CVC, led us to propose a relationship between the type of VA chosen for HD, and the risk of thrombogenesis.
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Affiliation(s)
- E. Costa
- Instituto de Ciências da Saúde da Universidade Católica Portuguesa, Porto - Portugal
- Faculdade Farmácia, Serviço de Bioquímica, Universidade do Porto - Portugal
- Instituto Biologia Molecular e Celular (IBMC), Universidade do Porto - Portugal
| | - S. Rocha
- Faculdade Farmácia, Serviço de Bioquímica, Universidade do Porto - Portugal
- Instituto Biologia Molecular e Celular (IBMC), Universidade do Porto - Portugal
| | - P. Rocha-Pereira
- Instituto Biologia Molecular e Celular (IBMC), Universidade do Porto - Portugal
- Centro Investigação Ciências Saúde, Universidade Beira Interior, Covilhã - Portugal
| | - E. Castro
- Faculdade Farmácia, Serviço de Bioquímica, Universidade do Porto - Portugal
- Instituto Biologia Molecular e Celular (IBMC), Universidade do Porto - Portugal
| | - F. Reis
- Instituto de Farmacologia e Terapêutica Experimental, Faculdade Medicina, Universidade Coimbra - Portugal
| | - F. Teixeira
- Instituto de Farmacologia e Terapêutica Experimental, Faculdade Medicina, Universidade Coimbra - Portugal
| | - V. Miranda
- FMC, Dinefro - Diálises e Nefrologia, SA - Portugal
| | | | - A. Loureiro
- Uninefro – Sociedade Prestadora de cuidados Médicos e de Diálise, SA - Portugal
| | - A. Quintanilha
- Faculdade Farmácia, Serviço de Bioquímica, Universidade do Porto - Portugal
- Instituto Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto - Portugal
| | - L. Belo
- Faculdade Farmácia, Serviço de Bioquímica, Universidade do Porto - Portugal
- Instituto Biologia Molecular e Celular (IBMC), Universidade do Porto - Portugal
| | - A. Santos-Silva
- Faculdade Farmácia, Serviço de Bioquímica, Universidade do Porto - Portugal
- Instituto Biologia Molecular e Celular (IBMC), Universidade do Porto - Portugal
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Almeida MS, Quintanilha A. Of responsible research-Exploring the science-society dialogue in undergraduate training within the life sciences. Biochem Mol Biol Educ 2017; 45:46-52. [PMID: 27292873 DOI: 10.1002/bmb.20988] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 04/10/2016] [Accepted: 05/15/2016] [Indexed: 06/06/2023]
Abstract
We explore the integration of societal issues in undergraduate training within the life sciences. Skills in thinking about science, scientific knowledge production and the place of science in society are crucial in the context of the idea of responsible research and innovation. This idea became institutionalized and it is currently well-present in the scientific agenda. Developing abilities in this regard seems particularly relevant to training in the life sciences, as new developments in this area somehow evoke the involvement of all of us citizens, our engagement to debate and take part in processes of change. The present analysis draws from the implementation of a curricular unit focused on science-society dialogue, an optional course included in the Biochemistry Degree study plan offered at the University of Porto. This curricular unit was designed to be mostly an exploratory activity for the students, enabling them to undertake in-depth study in areas/topics of their specific interest. Mapping topics from students' final papers provided a means of analysis and became a useful tool in the exploratory collaborative construction of the course. We discuss both the relevance and the opportunity of thinking and questioning the science-society dialogue. As part of undergraduate training, this pedagogical practice was deemed successful. © 2016 by The International Union of Biochemistry and Molecular Biology, 45(1):46-52, 2017.
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Affiliation(s)
- Maria Strecht Almeida
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, Porto, 4050-313, Portugal
| | - Alexandre Quintanilha
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, Porto, 4050-313, Portugal
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal
- IBMC-Instituto de Biologia Molecular e Celular, Universidade do Porto, Rua Alfredo Allen 208, Porto, 4200-135, Portugal
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Nascimento H, Catarino C, Mendonça D, Oliveira P, Alves AI, Medeiros AF, Pereira PR, Rêgo C, Mansilha HF, Aires L, Mota J, Quintanilha A, Santos-Silva A, Belo L. Comparison between CDC and WHO BMI z-score and their relation with metabolic risk markers in Northern Portuguese obese adolescents. Diabetol Metab Syndr 2015; 7:32. [PMID: 25969698 PMCID: PMC4427917 DOI: 10.1186/s13098-015-0022-7] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Accepted: 03/11/2015] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Growth-curves are an important tool for evaluating the anthropometric development in pediatrics. The different growth-curves available are based in different populations, what leads to different cut-offs. Pediatric obesity tracks into adulthood and is associated with increased cardiovascular risk. The accurate assessment of a child nutritional status using growth-curves can indicate individuals that are either obese or in risk of becoming obese, allowing an early intervention. Moreover, the association between the data obtained from growth-curves with specific metabolic risk factors further highlights the importance of these charts. This study aimed to evaluate the associations between body mass index z-score (BMIzsc), determined using the growth-curves from the Centre for Disease Control and Prevention (CDC) and from the World Health Organization (WHO), with cardiovascular risk factors, represented here by metabolic syndrome (MS) and insulin resistance (IR) related parameters. The study involved 246 obese adolescents (10-18 years, 122 females). MS was defined according to the International Diabetes Federation. IR was considered for HOMA-IR greater than 2.5. FINDINGS No difference between both BMIzsc in identifying MS was noticeable by a ROC analysis. For both indexes the area-under-the-curve increased for older groups, particularly for males. CDC-BMIzsc was the best predictor of MS by logistic regression when all population was considered, however MS was better predicted by WHO-BMIzsc for females and by CDC-BMIzsc for males. Younger girls and older boys were in increased risk for MS. Similar results were obtained for IR. CONCLUSIONS A significant difference between the two BMIzsc regarding their association with MS and IR was not clear, being these associations weaker in younger individuals.
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Affiliation(s)
- Henrique Nascimento
- />Biological Science Department, Faculty of Pharmacy, University of Porto, Porto, Portugal
- />Instituto de Biologia Molecular e Celular (Institute for Molecular and Cell Biology), Universidade do Porto, Porto, Portugal
- />Instituto de Investigação e Inovação em Saúde (Institute for Research and Innovation in Health), Universidade do Porto, Porto, Portugal
| | - Cristina Catarino
- />Biological Science Department, Faculty of Pharmacy, University of Porto, Porto, Portugal
- />Instituto de Biologia Molecular e Celular (Institute for Molecular and Cell Biology), Universidade do Porto, Porto, Portugal
- />Instituto de Investigação e Inovação em Saúde (Institute for Research and Innovation in Health), Universidade do Porto, Porto, Portugal
| | - Denisa Mendonça
- />Population Study Department, Biomedical Sciences Institute Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - Pedro Oliveira
- />Population Study Department, Biomedical Sciences Institute Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - Ana Inês Alves
- />Instituto de Biologia Molecular e Celular (Institute for Molecular and Cell Biology), Universidade do Porto, Porto, Portugal
- />Instituto de Investigação e Inovação em Saúde (Institute for Research and Innovation in Health), Universidade do Porto, Porto, Portugal
- />Research Centre in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sports, University of Porto, Porto, Portugal
| | - Ana Filipa Medeiros
- />Research Centre in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sports, University of Porto, Porto, Portugal
| | | | - Carla Rêgo
- />Children and Adolescent Centre, CUF Hospital; Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of Porto, Porto, Portugal
| | - Helena Ferreira Mansilha
- />Childhood and Adolescence Department/Paediatric Service of Porto Hospital Centre, Porto, Portugal
| | - Luísa Aires
- />Research Centre in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sports, University of Porto, Porto, Portugal
- />University Institute of Maia (ISMAI), S. Pedro Avioso, Portugal
| | - Jorge Mota
- />Research Centre in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sports, University of Porto, Porto, Portugal
| | - Alexandre Quintanilha
- />Instituto de Biologia Molecular e Celular (Institute for Molecular and Cell Biology), Universidade do Porto, Porto, Portugal
- />Instituto de Investigação e Inovação em Saúde (Institute for Research and Innovation in Health), Universidade do Porto, Porto, Portugal
- />Biomedical Sciences Institute Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - Alice Santos-Silva
- />Biological Science Department, Faculty of Pharmacy, University of Porto, Porto, Portugal
- />Instituto de Biologia Molecular e Celular (Institute for Molecular and Cell Biology), Universidade do Porto, Porto, Portugal
- />Instituto de Investigação e Inovação em Saúde (Institute for Research and Innovation in Health), Universidade do Porto, Porto, Portugal
| | - Luís Belo
- />Biological Science Department, Faculty of Pharmacy, University of Porto, Porto, Portugal
- />Instituto de Biologia Molecular e Celular (Institute for Molecular and Cell Biology), Universidade do Porto, Porto, Portugal
- />Instituto de Investigação e Inovação em Saúde (Institute for Research and Innovation in Health), Universidade do Porto, Porto, Portugal
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Santos-Martins M, Sameiro-Faria M, Ribeiro S, Rocha-Pereira P, Nascimento H, Reis F, Miranda V, Quintanilha A, Belo L, Beirão I, Santos-Silva A, Bronze-Da-Rocha E, Costa E. TLR4 and TLR9 Polymorphisms Effect on Inflammatory Response in End-Stage Renal Disease Patients. EUR J INFLAMM 2014. [DOI: 10.1177/1721727x1401200314] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Toll-like receptors (TLRs) play a key role in the response of innate and adaptive immune system to microbial and endogenous ligands. Inflammation is a common feature in end-stage renal disease (ESRD) patients; however, the mechanisms/factors triggering the inflammatory process are still poorly clarified. Our aim was to analyze the impact of the c.-1486T>C and c.896A>G polymorphisms in TLR9 and TLR4 genes, respectively, on the inflammatory response of ESRD patients. Clinical and laboratory evaluation was carried out on 184 ESRD patients. Polymerase chain reaction followed by restriction fragmens length polymorphisms (PCR-RFLP) was employed for genotyping of TLR-4 c.896A>G and TLR-9 c.-1486T>C polymorphisms. The prevalence of AA and AG of TLR4 c.896A>G polymorphism in ESRD patients was 97.8% and 2.2%, respectively. None of the individuals showed a homozygous TLR4 polymorphism. Concerning the TLR9 c.-1486T>C polymorphism, we found that ESRD patients showed a prevalence of TC and CC genotypes of 57.1% and 20.6%, respectively. We found that the heterozygous patients for the TLR4 c.896A>G polymorphism presented an increased level in lymphocyte count, a decrease in neutrophil/lymphocyte ratio and in serum levels of hepcidin. Regarding the TLR9 c.-1486T>C polymorphism, we found that it is associated with decreased white blood cell and neutrophil counts, ferritin and CRP serum levels, and with an increase in serum levels of creatinine. Our data suggest that the presence of the studied polymorphisms is associated with a decreased inflammatory response in ESRD patients under hemodialysis, and, thus its presence might have beneficial effects in ESRD patients. Moreover, our data provide new insights in the role of TLR polymorphisms in renal disease, which might have impact in the near future for the development of innovative therapies.
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Affiliation(s)
- M. Santos-Martins
- Abel Solazar Institute of Biomedical Sciences, University of Porto, Porto, Portugal
| | - M. Sameiro-Faria
- Abel Solazar Institute of Biomedical Sciences, University of Porto, Porto, Portugal
- Nephrocare Portugal, SA-Nephrocare Maia, Maia, Portugal
| | - S. Ribeiro
- UCIBIO@REQUIMTE, Laboratory of Biochemistry, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - P. Rocha-Pereira
- Abel Solazar Institute of Biomedical Sciences, University of Porto, Porto, Portugal
- UCIBIO@REQUIMTE, Laboratory of Biochemistry, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
- Health Sciences Research Center, University of Beira Interior, Covilhã, Portugal
| | - H. Nascimento
- UCIBIO@REQUIMTE, Laboratory of Biochemistry, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - F. Reis
- IBILI, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - V. Miranda
- Nephrocare Portugal, SA-Nephrocare Maia, Maia, Portugal
| | - A. Quintanilha
- Abel Solazar Institute of Biomedical Sciences, University of Porto, Porto, Portugal
- Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal
| | - L. Belo
- UCIBIO@REQUIMTE, Laboratory of Biochemistry, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - I. Beirão
- Abel Solazar Institute of Biomedical Sciences, University of Porto, Porto, Portugal
- Nephrology Service, Hospital Centre of Porto, Porto, Portugal
- UMIB, Unit for Multidisciplinary Research in Biomedicine, ICBAS, University of Porto, Porto, Portugal
| | - A. Santos-Silva
- UCIBIO@REQUIMTE, Laboratory of Biochemistry, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
- Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal
| | - E. Bronze-Da-Rocha
- UCIBIO@REQUIMTE, Laboratory of Biochemistry, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - E. Costa
- UCIBIO@REQUIMTE, Laboratory of Biochemistry, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
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Belo L, Nascimento H, Kohlova M, Bronze-da-Rocha E, Fernandes J, Costa E, Catarino C, Aires L, Mansilha HF, Rocha-Pereira P, Quintanilha A, Rêgo C, Santos-Silva A. Body fat percentage is a major determinant of total bilirubin independently of UGT1A1*28 polymorphism in young obese. PLoS One 2014; 9:e98467. [PMID: 24901842 PMCID: PMC4046990 DOI: 10.1371/journal.pone.0098467] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [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: 12/28/2013] [Accepted: 05/04/2014] [Indexed: 12/05/2022] Open
Abstract
Objectives Bilirubin has potential antioxidant and anti-inflammatory properties. The UGT1A1*28 polymorphism (TA repeats in the promoter region) is a major determinant of bilirubin levels and recent evidence suggests that raised adiposity may also be a contributing factor. We aimed to study the interaction between UGT1A1 polymorphism, hematological and anthropometric variables with total bilirubin levels in young individuals. Methods 350 obese (mean age of 11.6 years; 52% females) and 79 controls (mean age of 10.5 years; 59% females) were included. Total bilirubin and C-reactive protein (CRP) plasma levels, hemogram, anthropometric data and UGT1A1 polymorphism were determined. In a subgroup of 74 obese and 40 controls body composition was analyzed by dual-energy X-ray absorptiometry. Results The UGT1A1 genotype frequencies were 49.9%, 42.7% and 7.5% for 6/6, 6/7 and 7/7 genotypes, respectively. Patients with 7/7 genotype presented the highest total bilirubin levels, followed by 6/7 and 6/6 genotypes. Compared to controls, obese patients presented higher erythrocyte count, hematocrit, hemoglobin and CRP levels, but no differences in bilirubin or in UGT1A1 genotype distribution. Body fat percentage was inversely correlated with bilirubin in obese patients but not in controls. This inverse association was observed either in 6/7 or 6/6 genotype obese patients. UGT1A1 polymorphism and body fat percentage were the main factors affecting bilirubin levels within obese patients (linear regression analysis). Conclusion In obese children and adolescents, body fat composition and UGT1A1 polymorphism are independent determinants of total bilirubin levels. Obese individuals with 6/6 UGT1A1 genotype and higher body fat mass may benefit from a closer clinical follow-up.
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Affiliation(s)
- Luís Belo
- Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
- Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Porto, Portugal
- * E-mail:
| | - Henrique Nascimento
- Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
- Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Porto, Portugal
| | - Michaela Kohlova
- Institute for Biomedical Imaging and Life Science (IBILI), Faculdade de Medicina, Universidade de Coimbra, Coimbra, Portugal
| | - Elsa Bronze-da-Rocha
- Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
- Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Porto, Portugal
| | - João Fernandes
- Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
- Institute for Biomedical Imaging and Life Science (IBILI), Faculdade de Medicina, Universidade de Coimbra, Coimbra, Portugal
| | - Elísio Costa
- Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
- Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Porto, Portugal
| | - Cristina Catarino
- Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
- Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Porto, Portugal
| | - Luísa Aires
- Centro de Investigação em Actividade Física, Saúde e Lazer (CIAFEL), Faculdade de Desporto, Universidade do Porto, Porto, Portugal
- Instituto Universitário da Maia (ISMAI), Maia, Portugal
| | - Helena Ferreira Mansilha
- Departamento da Infância e Adolescência/Serviço de Pediatria do Centro Hospitalar do Porto, Porto, Portugal
| | - Petronila Rocha-Pereira
- Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Covilhã, Portugal
| | - Alexandre Quintanilha
- Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Porto, Portugal
- Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto, Portugal
| | - Carla Rêgo
- Centro da Criança e do Adolescente. Hospital CUF Porto, Center for Health Technology and Services Research (CINTESIS), Faculdade de Medicina, Universidade do Porto, Porto, Portugal
| | - Alice Santos-Silva
- Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
- Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Porto, Portugal
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do Sameiro-Faria M, Ribeiro S, Rocha-Pereira P, Fernandes J, Reis F, Bronze-da-Rocha E, Miranda V, Quintanilha A, Costa E, Belo L, Santos-Silva A. Body mass index and resistance to recombinant human erythropoietin therapy in maintenance hemodialysis patients. Ren Fail 2013; 35:1392-8. [PMID: 23991655 DOI: 10.3109/0886022x.2013.828267] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The aim of this work was to contribute to a better understanding of the relationship between resistance to recombinant human erythropoietin (rhEPO) therapy and body mass index (BMI) in hemodialysis (HD) patients. We evaluated 191 HD patients and 25 healthy individuals. Complete blood count, reticulocyte count, and circulating levels of ferritin, transferrin, iron, soluble transferrin receptor (sTfR), transferrin saturation, hepcidin, C-reactive protein (CRP), interleukin 6 (IL-6), albumin, and adiponectin were measured in all patients and controls. Non-responder patients (n = 16), as compared with responder patients (n = 175), showed statistically significant lower BMI values, an enhanced inflammatory and higher adiponectin levels, associated with disturbances in iron metabolism. Analyzing the results according to BMI, we found that underweight patients required higher rhEPO doses than normal, overweight, and obese patients, and a higher percentage of non-responders patients were found within the underweight group of HD patients. Moreover, underweight patients presented lower levels of transferrin and higher levels of adiponectin compared to overweight and obese patients, and lower levels of iron compared with normal weight patients. Multiple regression analysis identified the sTfR, hemoglobin, BMI, and albumin as independent variables associated with rhEPO doses. In conclusion, our work showed that HD patients resistant to rhEPO therapy present a functional iron deficiency and a higher degree of inflammation, despite their lower BMI values and higher levels of adiponectin. Actually, BMI is poorly related with markers of systemic inflammation, such as IL-6 and CRP, while adiponectin works a fairly good indirect marker of adiposity within HD patients.
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Kohlova M, Ribeiro S, do Sameiro-Faria M, Rocha-Pereira P, Fernandes J, Reis F, Miranda V, Quintanilha A, Belo L, Bronze-Rocha E, Costa E, Santos-Silva A. Circulating cell-free DNA levels in hemodialysis patients and its association with inflammation, iron metabolism, and rhEPO doses. Hemodial Int 2013; 17:664-7. [PMID: 23679088 DOI: 10.1111/hdi.12055] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Michaela Kohlova
- Departamento de Ciências Biológicas, Laboratório de Bioquímica, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal; IBILI, Faculdade de Medicina, Universidade de Coimbra, Coimbra, Portugal
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Kohlova M, Ribeiro S, do Sameiro-Faria M, Rocha-Pereira P, Fernandes J, Reis F, Miranda V, Quintanilha A, Bronze-da-Rocha E, Belo L, Costa E, Santos-Silva A, Arias-Guillen M, Maduell F, Masso E, Fontsere N, Carrera M, Ojeda R, Vera M, Cases A, Campistol J, Di Benedetto A, Ciotola A, Stuard S, Marcelli D, Canaud B, Kim MJ, Lee SW, Kweon SH, Song JH, Rosales LM, Abbas S, Zhu F, Flores C, Carter M, Apruzzese R, Kotanko P, Levin NW, Mann H, Seyffart G, Ensminger A, Goksel T, Stiller S, Zaluska W, Kotlinska-Hasiec E, Rzecki Z, Rybojad B, Zaluska A, Da'browski W, Ponce P, Chung T, Kreuzberg U, Pedrini L, Francois K, Wissing KM, Jacobs R, Boone D, Jacobs K, Tielemans C, Agar BU, Culleton BF, Fluck R, Leypoldt JK, Lentini P, Zanoli L, Granata A, Contestabile A, Basso A, Berlingo G, Pellanda V, de Cal M, Clementi A, Insalaco M, Dell'Aquila R, Panichi V, Rosati A, Casani A, Conti P, Capitanini A, Migliori M, Scatena A, Giusti R, Malagnino E, Betti G, Bernabini G, Gabbrielli C, Rollo S, Caiani D, Pizzarelli F, Cantaluppi V, Medica D, Quercia AD, Gai M, Leonardi G, Anania P, Guarena C, Giovinazzo G, Ferraresi M, Merlo I, Deambrosis I, Giaretta F, Biancone L, Segoloni GP, Surace A, Pieri M, Rovatti P, Steckiph D, Mambelli E, Mancini E, Santoro A, Devine E, Krieter D, Lemke HD, Frasca GM, Sagripanti S, Boggi R, Del Rosso G, Gattiani A, Mosconi G, Oliva S, Rigotti A, Sopranzi F, Tetta C, Cavallari C, Fonsato V, Maffei S, Collino F, Camussi G, Ksiazek A, Waniewski J, Debowska M, Wojcik-Zaluska A, Zaluska W, Maduell F, Wieneke P, Arias-Guillen M, Fontsere N, Vera M, Ojeda R, Carrera M, Cases A, Campistol J, Bunia J, Ziebig R, Wolf H, Ahrenholz P, Donadio C, Kanaki A, Sami N, Tognotti D, Goubella A, Gankam-Kengne F, Baudoux T, Fagnoul D, Husson C, Ghisdal L, Broeders NE, Nortier JL, von Albertini B, Mathieu C, Cherpillod A, Boesch A, Romo M, Zhou J, Tang L, Kong D, Zhang L, Shi S, Lv Y, Chen X, Sakurai K, Saito T, Ishii D, Fievet P, Delpierre A, Faucher J, Ghazali A, Soltani ON, Lefevre M, Stephan R, Demontis R, Hougardy JM, Husson C, Gastaldello K, Nortier JL, Mishkin GJ, McLean A, Palant C, Fievet P, Faucher J, Delpierre A, Ghazali A, Demontis R, Glorieux G, Hulko M, Speidel R, Brodbeck K, Krause B, Vanholder R, Rovatti P, Grandi E, Stefani D, Ruffo M, Solem K, Olde B, Santoro A, Sterner G, Lee YK, Lee HW, Choi KH, Kim BS, Sakurai K, Saito T, Wakabayasi Y, Djuric P, Bulatovic A, Jankovic A, Tosic J, Popovic J, Djuric Z, Bajcetic S, Dimkovic N, Golubev RV, Soltysiak J, Malke A, Warzywoda A, Blumczynski A, Silska-Dittmar M, Musielak A, Ostalska-Nowicka D, Zachwieja J, Ashcroft R, Williams G, Brown C, Chess J, Mikhail A, Steckiph D, Bertucci A, Petrarulo M, Baldini C, Calabrese G, Gonella M. Extracorporeal dialysis: techniques and adequacy II. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Malhotra R, Usyvat L, Raimann J, Thijssen S, Levin N, Kotanko P, Hilderman M, Qureshi AR, Al-Abed Y, Anderstam B, Bruchfeld A, Minco M, Argentino G, Grumetto L, Postiglione L, Memoli B, Riccio E, Striker G, Yubero-Serrano E, Uribarri J, Vlassara H, do Sameiro-Faria M, Ribeiro S, Kohlova M, Rocha-Pereira P, Fernandes J, Nascimento H, Reis F, Miranda V, Bronze-da-Rocha E, Quintanilha A, Costa E, Belo L, Santos-Silva A, Modilca M, Margineanu M, Gluhovschi G, Vernic C, Velciov S, Petrica L, Barzuca E, Gluhovschi C, Balgradean C, Kaycsa A, Stockler-Pinto M, Dornelles S, Cozzolino S, Malm O, Mafra D, Cobo G, Rodriguez I, Oliet A, Hinostroza J, Vigil A, Di Gioia M, Gallar P, Drechsler C, Wanner C, Blouin K, Pilz S, Tomaschitz A, Krane V, Marz W, Ritz E, van der Harst P, de Boer R, Carrero JJ, Cabezas-Rodriguez I, Zoccali C, Qureshi A, Ketteler M, Gorriz J, Rutkowski B, Teplan V, Kramar R, Pavlovic D, Goldsmith D, Benedik M, Fernandez-Martin J, Cannata-Andia J, Guido G, Loiacono E, Serriello I, Camilla R, Coppo R, Amore A, Schiller A, Munteanu M, Schiller O, Mihaescu A, Olariu N, Andrei C, Anton C, Ivacson Z, Roman V, Berca S, Bansal V, Marcelli D, Grassmann A, Bayh I, Scatizzi L, Marelli C, Etter M, Usvyat L, Kooman J, Sande F, Levin N, Kotanko P, Canaud B, Quiroga B, Villaverde M, Abad S, Vega A, Reque J, Yuste C, Barraca D, Perez de Jose A, Lopez-Gomez JM, Castellano Gasch S, Palomares I, Dominguez J, Ramos R, Schmidt J, Hafer C, Clajus C, Hadem J, Schmidt B, Haller H, Kielstein J, Katagiri M, Kamada Y, Kobayashi N, Moriguchi I, Ito Y, Kamekawa D, Akiyama A, Ishii H, Tanaka S, Kamiya K, Hamazaki N, Kato M, Shimizu R, Hotta K, Masuda T, Veronesi M, Mancini E, Valente F, Righetti F, Brunori G, Santoro A, Bal Z, Tutal E, Erkmen Uyar M, Guliyev O, Sayin B, Sezer S, Mikami S, Hamano T, Tanaka T, Iba O, Toki M, Mikami H, Takamitsu Y, Inoue T, Fujii M, Hirayama A, Ueda A, Watanabe R, Matsui H, Nagano Y, Nagase S, Aoyagi K, Owada S, Tutal E, Bal Z, Erkmen Uyar M, Sayin B, Tot U, Sezer S, Onec K, Erten Y, Pasaoglu O, Ebinc F, Uludag K, Okyay G, Inal S, Pasaoglu H, Deger S, Arinsoy T, Arias-Guillen M, Masso E, Perez E, Herrera P, Romano B, Perez N, Maduell F, Jung YS, Kim YN, Shin HS, Rim H, Al Ismaili Z, Hassan M, Dastoor H, Bernieh B, Ismael A, Marcelli D, Richards N, Khil M, Sheiman B, Dudar I, Gonchar Y, Khil V, Kim HL, Ryu HH, Kim SH, Bosch Benitez-Parodi E, Baamonde Laborda E, Perez Suarez G, Ramirez JI, Garcia Canton C, Guerra R, Ramirez Puga A, Toledo A, Lago Alonso MM, Checa Andres MD, Hwang WM, Yun SR, Molsted S, Andersen JL, Eidemak I, Harrison AP, Kose E, Turgutalp K, Kiykim A, Celik F, Gok Oguz E. Protein-energy wasting. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft153] [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: 11/14/2022] Open
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Wong MMY, Thijssen S, Usvyat LA, Kotanko P, Maddux FW, Speer T, Rohrer L, Blyzszuk P, Krankel N, Zewinger S, Martin T, von Eckardstein A, Luscher T, Landmesser U, Fliser D, Prats M, Font R, Garcia C, Cabre C, Jariod M, Martinez Vea A, Costa E, Ribeiro S, do Sameiro-Faria M, Rocha-Pereira P, Kohlova M, Fernandes J, Reis F, Miranda V, Quintanilha A, Bronze-da-Rocha E, Belo L, Santos-Silva A, do Sameiro-Faria M, Kohlova M, Ribeiro S, Rocha-Pereira P, Fernandes J, Nascimento H, Reis F, Miranda V, Bronze-da-Rocha E, Quintanilha A, Belo L, Costa E, Santos-Silva A, Schepers E, Glorieux G, Van den Abeele T, Neirynck N, Vanholder R, Neirynck N, Glorieux G, Boelaert J, Liabeuf S, Massy Z, Vanholder R, Kaynar K, Kural BV, Ulusoy S, Cansiz M, Akcan B, Misir N, Yaman S, Kaya N, Dimas GG, Iliadis FS, Tegos TJ, Spiroglou SG, Pitsalidis CG, Karamouzis IM, Didaggelos TP, Adamidou AP, Savopoulos CG, Karamouzis MI, Orologas AG, Hatzitolios AI, Grekas DM, Flisinski M, Brymora A, Stefanska A, Strozecki P, Manitius J, Khalfina TN, Maksudova AN, Valeeva IK, Bantis C, Kouri NM, Bamichas G, Stangou M, Tsantekidou E, Natse T, Fazio MR, Basile G, Lucisano S, Montalto G, Valeria C, Donato V, Lupica R, Trimboli D, Aloisi C, Buemi M, Henze A, Raila J, Scholze A, Schweigert F, Tepel M, Nakamichi R, Prates E, Redublo Quinto BM, Zanella MT, Batista MC, Masajtis-Zagajewska A, Kurnatowska I, Wajdlich M, Nowicki M, Mennini F, Russo S, Marcellusi A, Quintaliani G, Andrulli S, Chiavenna C, Bigi MC, Tentori F, Crepaldi M, Corti MM, Dell'Oro C, Bacchini G, Limardo M, Pontoriero G, Williams C, Abbas SR, Zhu F, Flores-Gama C, Moskowitz J, Cartagena C, Carter M, Levin N, Kotanko P, de Oliveira RB, Liabeuf S, Okazaki H, Lenglet A, Desjardins L, Lemke HD, Valholder R, Choukroun G, Massy ZA. Nutrition / inflammation. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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do Sameiro Faria M, Ribeiro S, Nascimento H, Rocha-Pereira P, Miranda V, Mendonça D, Quintanilha A, Costa E, Belo L, Santos-Silva A. Adiponectin is an independent predictor of tissue plasminogen activator levels in patients under haemodialysis. Scand J Urol Nephrol 2012; 46:461-465. [PMID: 22852746 DOI: 10.3109/00365599.2012.708943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
OBJECTIVE The aim of this study was to evaluate the association of tissue-type plasminogen activator (t-PA) levels with clinical data of patients under haemodialysis (HD) and with several variables potentially related to endothelial function and dysfunction. MATERIAL AND METHODS In a cross-sectional study involving 189 Portuguese HD patients, circulating levels of t-PA, lipids, oxidized low-density lipoprotein (Ox-LDL), interleukin-6 (IL-6), C-reactive protein (CRP), adiponectin, plasminogen activator inhibitor type 1 (PAI-1) and fibrin fragment D-dimer were measured. RESULTS Considering the entire population, t-PA correlated inversely and significantly with adiponectin and high-density lipoprotein-cholesterol, and positively and significantly with age, body mass index, PAI-1, IL-6, CRP, D-dimer, cholesterol and Ox-LDL. In multiple linear regression analysis PAI-1, age and adiponectin remained statistically associated with t-PA values (p < 0.01 for all). The weakest significant association (p = 0.046) was that found between t-PA and D-dimer. CONCLUSION Adiponectin is a main determinant of t-PA level, which may be a good marker of endothelial dysfunction in HD patients.
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Ribeiro S, do Sameiro Faria M, Mascarenhas-Melo F, Freitas I, Mendonça MI, Nascimento H, Rocha-Pereira P, Miranda V, Mendonça D, Quintanilha A, Belo L, Costa E, Reis F, Santos-Silva A. Main determinants of PON1 activity in hemodialysis patients. Am J Nephrol 2012; 36:317-23. [PMID: 23007074 DOI: 10.1159/000342235] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2012] [Accepted: 07/30/2012] [Indexed: 12/12/2022]
Abstract
BACKGROUND/AIMS Cardiovascular diseases are the major cause of morbidity and mortality in hemodialysis (HD) patients. These patients present reduced paraoxonase 1 (PON1) activity that depends on genetic and non-genetic factors; however, how these factors influence PON1 activity in HD patients is poorly clarified. Our aim was to evaluate the influence of two polymorphisms and non-genetic factors on PON1 activity in HD patients. METHODS We evaluated 183 HD patients under recombinant human erythropoietin (rhEPO) treatment and 22 healthy individuals. The lipid profile [total cholesterol, triglycerides, HDL-c, LDL-c, apolipoprotein (Apo) A-I, Apo B, lipoprotein(a) and oxidized low-density lipoprotein (Ox-LDL)], inflammatory markers [adiponectin, interleukin-6 (IL-6) and C-reactive protein (CRP)], PON1 activity and PON1 gene polymorphisms (L55M and Q192R) were evaluated. RESULTS HD patients presented higher levels of IL-6, CRP and Ox-LDL/LDL-c, and lower PON1 activity, total cholesterol, HDL-c, LDL-c, Apo A and Apo B; the most frequent genotype was heterozygosity for L55M polymorphism and homozygosity for the Q allele, the more frequent genotype of Q192R polymorphism. Multiple regression analysis identified heterozygosity and homozygosity for L55M and Q192R polymorphisms, very low-density lipoproteins, LDL-c, Apo A and CRP levels, time on dialysis and rhEPO dose, as the independent variables significantly associated with PON1 activity. The associations with CRP, rhEPO and time on dialysis were negative. CONCLUSION Our results show that the reduced PON1 activity in HD patients who are not under statin therapy is strongly associated with inflammation, longer time on dialysis and high rhEPO doses, suggesting that the reduction in PON1 activity may worsen the prognosis of these patients.
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Nascimento H, Costa E, Rocha-Pereira P, Rego C, Mansilha HF, Quintanilha A, Santos-Silva A, Belo L. Cardiovascular risk factors in portuguese obese children and adolescents: impact of small reductions in body mass index imposed by lifestyle modifications. Open Biochem J 2012; 6:43-50. [PMID: 22629286 PMCID: PMC3358715 DOI: 10.2174/1874091x01206010043] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2011] [Revised: 10/12/2011] [Accepted: 10/30/2011] [Indexed: 11/22/2022] Open
Abstract
Objectives: Evaluate cardiovascular risk factors in Portuguese obese children and adolescents and the long-term effects of lifestyle modifications on such risk factors. Design: Transversal cohort study and longitudinal study. Setting: University Hospital S. João and Children’s Hospital Maria Pia, Porto. Patients/Participants: 148 obese children and adolescents [81 females (54.7%); mean age of 11.0 years] and 33 controls (sex and age matched) participated in a cross-sectional study. Sixty obese patients agreed to participate in an one year longitudinal study after medical and nutritionist appointments to improve lifestyle modification; a substantial body mass index (BMI) reduction was defined by a decrease in BMI z-score (BMI z-sc) of 0.3 or more over the studied period. Main Outcome measures: Lipid profile (triglycerides, cholesterol, HDLc, LDLc, lipoprotein (a), apolipoproteins A and B) and circulating levels of C-reactive protein (CRP), adiponectin, glucose, and insulin. Results: Compared with the lean children, obese patients demonstrated statistically significantly higher insulin resistance index [Homeostasis model assessment (HOMA)], and triglycerides, LDLc, apolipoprotein (apo) B, insulin and CRP concentrations, whereas their HDLc and apo A levels were significantly lower (cross-sectional study). In the longitudinal study (n=60), a substantial BMI reduction occurred in 17 (28.3%) obese patients which led to a significant reduction in triglycerides, cholesterol, LDLc, apo B, glucose and insulin levels and in HOMA. The ΔBMI values over the studied period correlated inversely and significantly with BMI (P<0.001) and HOMA (P=0.026) values observed at baseline. In multiple linear regression analysis, BMI at baseline remained associated to changes in BMI over the studied period (standardised Beta: -0.271, P=0.05). Conclusion: Our data demonstrates that small reductions in BMI-zc, imposed by lifestyle modifications in obese children and adolescents, improve the cardiovascular risk profile of such patients. Furthermore, patients with higher BMI and/or insulin resistance seem to experience a greater relative reduction in their BMI after lifestyle improvements.
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Affiliation(s)
- Henrique Nascimento
- Departamento de Bioquímica, Faculdade de Farmácia, Universidade do Porto, 4050-047 Porto, Portugal
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Usvyat LA, Raimann J, Thijssen S, van der Sande FM, Kooman J, Levin NW, Kotanko P, Von Gersdorff G, Schaller M, Bayh I, Etter M, Grassmann A, Guinsburg A, Kooman J, Lam M, Marcelli D, Marelli C, Scatizzi L, Tashman A, Thijssen S, Toffelmire T, Usvyat L, Van der Sande F, Wang Y, Levin NW, Barth C, Kotanko P, Moffitt T, Moffitt T, Hariton F, Devlin M, Garrett P, Hannon-Fletcher M, Ekramzadeh M, Sohrabi Z, Salehi M, Fallahzadeh MK, Ayatollahi M, Geramizadeh B, Hassanzadeh J, Sagheb MM, Beberashvili I, Beberashvili I, Sinuani I, Azar A, Kadoshi H, Shapiro G, Feldman L, Averbukh Z, Weissgarten J, Abe Y, Watanabe M, Ito K, Sasatomi Y, Ogahara S, Nakashima H, Saito T, Witt S, Kunze R, Guth HJ, Skarabis H, Kunze R, Vienken J, Nowak P, Wilk R, Mamelka B, Prymont-Przyminska A, Zwolinska A, Sarniak A, Wlodarczyk A, Rysz J, Nowak D, Trajceska L, Dzekova-Vidimliski P, Gelev S, Arsov S, Sikole A, Sonikian M, Dona A, Skarakis I, Metaxaki P, Chiotis C, Papoutsis I, Karaitianou A, Spiliopoulou C, Marcelli D, Tashman A, Guinsburg A, Grassmann A, Barth C, Marelli C, Van der Sande FM, Von Gersdorff G, Bayh I, Kooman J, Scatizzi L, Lam M, Schaller M, Etter M, Thijssen S, Toffelmire T, Wang Y, Usvyat LA, Kotanko P, Levin NW, Teta D, Teta D, Tappy L, Theumann N, Halabi G, Gauthier T, Mathieu C, Tremblay S, Coti P, Burnier M, Zanchi A, Martinez Vea A, Cabre C, Villa D, Munoz M, Vives JP, Arruche M, Soler J, Compte MT, Aguilera J, Romeu M, Giralt M, Barril G, Anaya S, Vozmediano C, Celayeta A, Novillo R, Bernal V, Beiret I, Huarte E, Martin J, Santana H, Torres G, Sousa F, Sanchez R, Lopez-Montes A, Tornero F, Uson J, Pousa M, Giorgi M, Rdez Cubillo B, Malhotra R, Malhotra R, Usvyat L, Abbas SR, Thjissen S, Carter M, Etter M, Tashman A, Guinsburg A, Grassmann A, Barth C, Marelli C, Van der Sande F, von Gersdorff G, Bayh I, Kooman J, Scatizzi L, Lam M, Schaller M, Toffelmire T, Wang Y, Marcelli D, Levin N, Kotanko P, Jens R, Tepel M, Katharina E, Andrea H, Simone F, Florian S, Slusanschi O, Garneata L, Moraru R, Preoteasa E, Barbulescu C, Santimbrean C, Klein C, Dragomir D, Mircescu G, Idorn T, Knop F, Holst JJ, Hornum M, Feldt-Rasmussen B, Son YK, An WS, Kim SE, Kim KH, Garneata L, Slusanschi O, Preoteasa E, Barbulescu C, Santimbrean C, Klein C, Mircescu G, Borrelli S, Minutolo R, De Nicola L, Conte G, De Simone W, Zito B, Guastaferro P, Nigro F, Bassi A, Leone L, Credendino O, Genualdo R, Capuano M, Iulianiello G, Auricchio MR, Sezer S, Bal Z, Tutal E, Erkmen Uyar M, Ozdemir Acar FN, Ribeiro S, Faria MS, Melo F, Sereno J, Freitas I, Mendonca M, Nascimento H, Fernandes J, Rocha-Pereira P, Miranda V, Mendonca D, Quintanilha A, Belo L, Costa E, Reis F, Santos-Silva A, Valtuille R, Casos ME, Fernandez EA. Nutrition, inflammation and oxidative stress - CKD 5D. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Susla O, Shin HS, Jung YS, Rim H, Speer T, Owala FO, Razawi M, Holy E, Ferdinand B, Danilo F, Luscher TF, Tanner FC, Markaki A, Kyriazis J, Petrakis I, Mavroeidi V, Perakis K, Fragkiadakis GA, Venyhaki M, Tzanakakis M, Vardaki E, Maraki K, Doskas T, Daphnis E, Bregman R, Vale B, Lemos C, Kawakami L, Silva MI, Zhu F, Kaysen G, Kotanko P, Abbas SR, Dou Y, Heymsfield S, Levin NW, Turkmen K, Kayikcioglu H, Guney I, Altintepe L, Ozbek O, Tonbul HZ, Kaysen GA, Kaysen GA, Usvyat LA, Thijssen S, Levin NW, Kotanko P, Mutluay R, Konca Degertekin C, Derici U, Yilmaz MI, Akkiyal F, Gultekin S, Gonen S, Deger SM, Arinsoy T, Sindel S, Hueso M, Torras J, Carrera M, Vidal A, Navarro E, Rivas I, Rama I, Bolanos N, Varela C, Martinez-Castelao A, Grinyo JM, Harving F, Svensson M, Schmidt EB, Jorgensen KA, Christensen JH, Park JH, Koo EH, Kim HK, Kim MS, Cho AJ, Lee JE, Jang HR, Huh W, Kim DJ, Kim YG, Oh HY, Zawiasa A, Nowak D, Nowicki M, Nathalie N, Griet G, Eva S, Raymond V, Ng KP, Stringer S, Jesky M, Dutton M, Ferro C, Cockwell P, Jia T, Gama Axelsson T, Lindholm B, Heimburger O, Barany P, Stenvinkel P, Qureshi AR, Quiroga B, Goicoechea M, Garcia de Vinuesa S, Verdalles U, Reque J, Panizo N, Arroyo D, Santos A, Macias N, Luno J, Honda H, Hirano T, Ueda M, Kojima S, Mashiba S, Hayase Y, Michihata T, Akizawa T, Gungor O, Sezis Demirci M, Kircelli F, Tatar E, Hur E, Sen S, Toz H, Basci A, Ok E, Sepe V, Albrizio P, Gnecchi M, Cervio E, Esposito P, Rampino T, Libetta C, Dal Canton A, Faria MS, Faria MS, Ribeiro S, Silva G, Nascimento H, Rocha-Pereira P, Miranda V, Vieira E, Santos R, Mendonca D, Quintanilha A, Costa E, Belo L, Santos-Silva A, Pruijm M, Pruijm M, Hofmann L, Heuvelin E, Forni V, Coristine A, Stuber M, Vogt B, Burnier M, Chiappini MG, Ammann T, Muzzi L, Grosso A, Sabry A, Bansal V, Hoppensteadt D, Jeske W, Fareed J. Nutrition, inflammation and oxidative stress - CKD 1-5. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Donadio C, Kanaki A, Martin-Gomez A, Garcia S, Palacios-Gomez M, Donadio C, Calia D, Colombini E, DI Francesco F, Ghimenti S, Kanaki A, Onor M, Tognotti D, Fuoco R, Marka-Castro E, Torres Zamora MI, Giron-Mino J, Jaime-Solis MA, Arteaga LM, Romero H, Marka-Castro E, Akonur A, Leypoldt K, Asola M, Culleton B, Eloot S, Glorieux G, Nathalie N, Vanholder R, Perez de Jose A, Verdalles Guzman U, Abad Esttebanez S, Vega Martinez A, Barraca D, Yuste C, Bucalo L, Rincon A, Lopez-Gomez JM, Bataille P, Celine P, Raymond A, Francois G, Herve L, Michel D, Jean Louis R, Zhu F, Kotanko P, Thijssen S, Levin NW, Papamichail N, Bougiakli M, Gouva C, Antoniou S, Gianitsi S, Vlachopanou A, Chachalos S, Naka K, Kaarsavvidou D, Katopodis K, Michalis L, Sasaki K, Yasuda K, Yamato M, Surace A, Rovatti P, Steckiph D, Bandini R, Severi S, Dellacasa Bellingegni A, Santoro A, Arias M, Arias M, Sentis A, Perez N, Fontsere N, Vera M, Rodriguez N, Arcal C, Ortega N, Uriza F, Cases A, Maduell F, Abbas SR, Abbas SR, Zhu F, Kotanko P, Levin NW, Georgianos P, Sarafidis P, Nikolaidis P, Lasaridis A, Ahmed A, Ahmed A, Kaoutar H, Mohammed B, Zouhir O, Balter P, Ginsberg N, Taylor P, Sullivan T, Usvyat LA, Levin NW, Kotanko P, Zabetakis P, Moissl U, Ferrario M, Garzotto F, Wabel P, Cruz D, Tetta C, Signorini MG, Cerutti S, Brendolan A, Ronco C, Heaf J, Axelsen M, Pedersen RS, Ahmed A, Ahmed A, Amine H, Oualim Z, Ammirati AL, Guimaraes de Souza NK, Nemoto Matsui T, Luiz Vieira M, Alves de Oliveira WA, Fischer CH, Dias Carneiro F, Iizuka IJ, Aparecida de Souza M, Mallet AC, Cruz Andreoli MC, Cardoso Dos Santos BF, Rosales L, Dou Y, Carter M, Thijssen S, Kotanko P, Testa A, Sottini L, Giacon B, Prati E, Loschiavo C, Brognoli M, Marseglia C, Tommasi A, Sereni L, Palladino G, Bove S, Bosticardo G, Schillaci E, Detoma P, Bergia R, Park JW, Moon SJ, Choi HY, Ha SK, Park HC, Liao Y, Zhang L, Fu P, Igarashi H, Suzuki N, Esashi S, Masakane I, Panichi V, De Ferrari G, Saffiotti S, Sidoti A, Biagioli M, Bianchi S, Imperiali P, Gabrielli C, Conti P, Patrone P, Rombola G, Falqui V, Mura C, Icardi A, Rosati A, Santori F, Mannarino A, Bertucci A, Steckiph D, Jeong J, Jeong J, Kim OK, Kim NH, Bots M, Den Hoedt C, Grooteman MP, Van der Weerd NC, Mazairac AHA, Levesque R, Ter Wee PM, Nube MJ, Blankestijn P, Van den Dorpel MA, Park Y, Jeon J, Tessitore N, Tessitore N, Bedogna V, Girelli D, Corazza L, Jacky P, Guillaume Q, Julien B, Marcinkowski W, Drozdz M, Milkowski A, Rydzynska T, Prystacki T, August R, Benedyk-Lorens E, Bladek K, Cina J, Janiszewska G, Kaczmarek A, Lewinska T, Mendel M, Paszkot M, Trafidlo E, Trzciniecka-Kloczkowska M, Vasilevsky A, Konoplev G, Lopatenko O, Komashnya A, Visnevsky K, Gerasimchuk R, Neivelt I, Frorip A, Vostry M, Racek J, Rajdl D, Eiselt J, Malanova L, Pechter U, Selart A, Ots-Rosenberg M, Krieter DH, Seidel S, Merget K, Lemke HD, Wanner C, Krieter DH, Canaud B, Lemke HD, Rodriguez A, Morgenroth A, Von Appen K, Dragoun GP, Wanner C, Fluck R, Fouque D, Lockridge R, Motomiya Y, Uji Y, Hiramatsu T, Ando Y, Furuta M, Furuta M, Kuragano T, Kida A, Yahiro M, Otaki Y, Hasuike Y, Nonoguchi H, Nakanishi T, Sain M, Sain M, Kovacic V, Ljutic D, Radic J, Jelicic I, Yalin SF, Yalin SF, Trabulus S, Yalin AS, Altiparmak MR, Serdengecti K, Ohtsuka A, Fukami K, Ishikawa K, Ando R, Kaida Y, Adachi T, Sugi K, Okuda S, Nesterova OB, Nesterova OB, Suglobova ED, Golubev RV, Vasiliev AN, Lazeba VA, Smirnov AV, Arita K, Kihara E, Maeda K, Oda H, Doi S, Masaki T, Hidaka S, Ishioka K, Oka M, Moriya H, Ohtake T, Nomura S, Kobayashi S, Wagner S, Gmerek A, Wagner J, Wizemann V, Eftimovska - Otovic N, Spaseska-Gjurovska K, Bogdanovska S, Babalj - Banskolieva E, Milovanceva M, Grozdanovski R, Pisani A, Riccio E, Mancini A, Ambuhl P, Astrid S, Ivana P, Martin H, Thomas K, Hans-Rudolf R, Daniel A, Denes K, Marco M, Wuthrich RP, Andreas S, Andrulli S, Altieri P, Sau G, Bolasco P, Pedrini LA, Basile C, David S, Feriani M, Nebiolo PE, Ferrara R, Casu D, Logias F, Tarchini R, Cadinu F, Passaghe M, Fundoni G, Villa G, DI Iorio BR, Zoccali C, Locatelli F, Kihara E, Arita K, Hamamoto M, Maeda K, Oda H, Doi S, Masaki T, Lee DY, Kim B, Moon KH, LI Z, Fu P, Ahrenholz P, Ahrenholz P, Winkler RE, Waitz G, Wolf H, Grundstrom G, Alquist M, Holmquist M, Christensson A, Bjork P, Abdgawad M, Ekholm L, Segelmark M, Corsi C, Santoro A, De Bie J, Mambelli E, Mortara D, Santoro A, Severi S, Arroyo D, Arroyo D, Panizo N, Quiroga B, Reque J, Melero R, Rodriguez-Ferrero M, Rodriguez-Benitez P, Anaya F, Luno J, Ragon A, James A, Brunet P, Ribeiro S, Faria MS, Rocha S, Rodrigues S, Catarino C, Reis F, Nascimento H, Fernandes J, Miranda V, Quintanilha A, Belo L, Costa E, Santos-Silva A, Arund J, Tanner R, Fridolin I, Luman M, Clajus C, Clajus C, Kielstein JT, Haller H, David S, Basile C, Basile C, Libutti P, Lisi P, Vernaglione L, Casucci F, Losurdo N, Teutonico A, Lomonte C, Krisp C, Gmerek A, Wagner J, Wolters DA, Pedrini LA, Matsuyama M, Tomo T, Ishida K, Matsuyama K, Nakata T, Kadota J, Caiazzo M, Monari E, Cuoghi A, Bellei E, Bergamini S, Palladino G, Tomasi A, Baranger T, Seniuta P, Berge F, Drouillat V, Frangie C, Rosier E, Labonia W, Lescano A, Rubio D, Von der Lippe N, Jorgensen JA, Osthus TB, Waldum B, Os I, Bossola M, DI Stasio E, Antocicco M, Tazza L, Griveas I, Karameris A, Pasadakis P, Savica V, Santoro D, Saitta S, Tigano V, Bellinghieri G, Gangemi S, Daniela R, Checherita IA, Ciocalteu A, Vacaroiu IA, Niculae A, Bladek K, Stefaniak E, Pietrzak I, Krupa D, Garred L, Santoro A, Mancini E, Corrazza L, Atti M, Afsar B, Stamopoulos D, Mpakirtzi N, Gogola B, Zeibekis M, Stivarou D, Panagiotou M, Grapsa E, Vega Vega O, Barraca Nunez D, Abad Esttebanez S, Bucalo L, Yuste C, Lopez-Gomez JM, Fernandez-Lucas M, Gomis A, Teruel JL, Elias S, Quereda C, Hignell L, Humphrey S, Pacy N, Stamopoulos D, Mpakirtzi N, Afentakis N, Grapsa E. Extracorporeal dialysis: techniques and adequacy. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs224] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Coimbra S, Oliveira H, Reis F, Belo L, Rocha S, Quintanilha A, Figueiredo A, Teixeira F, Castro E, Rocha-Pereira P, Santos-Silva A. Letter to the editor: A potential mechanism for the pathogenesis of psoriasis vulgaris. Int J Dermatol 2012; 52:1429-32. [PMID: 22512275 DOI: 10.1111/j.1365-4632.2011.05249.x] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Susana Coimbra
- Faculdade de Farmácia Departamento de Ciências Biológicas Laboratório de Bioquímica and Instituto de Biologia Molecular e Celular (IBMC) Universidade do Porto Porto Portugal Centro de Investigação das Tecnologias da Saúde (CITS) - Instituto Politécnico da Saúde Norte Gandra-Paredes Portugal Serviço de Dermatologia Hospitais da Universidade de Coimbra Coimbra Portugal Instituto de Farmacologia e Terapêutica Experimental IBILI Faculdade de Medicina Universidade de Coimbra Coimbra Portugal Faculdade de Farmácia Departamento de Ciências Biológicas Laboratório de Bioquímica and Instituto de Biologia Molecular e Celular (IBMC) Universidade do Porto Porto Portugal Instituto de Biologia Molecular e Celular (IBMC) and Instituto de Ciências Biomédicas Abel Salazar (ICBAS) Universidade do Porto Porto Portugal Serviço de Dermatologia Hospitais da Universidade de Coimbra Coimbra Portugal Instituto de Farmacologia e Terapêutica Experimental IBILI Faculdade de Medicina Universidade de Coimbra Coimbra Portugal Faculdade de Farmácia Departamento de Ciências Biológicas Laboratório de Bioquímica and Instituto de Biologia Molecular e Celular (IBMC) Universidade do Porto Porto Portugal Instituto de Biologia Molecular e Celular (IBMC) Universidade do Porto Porto Portugal Centro de Investigação em Ciências da Saúde (CICS) Universidade da Beira Interior Covilhã Portugal Faculdade de Farmácia Departamento de Ciências Biológicas Laboratório de Bioquímica and Instituto de Biologia Molecular e Celular (IBMC) Universidade do Porto Porto Portugal
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Ribeiro S, Faria MDS, Silva G, Nascimento H, Rocha-Pereira P, Miranda V, Vieira E, Santos R, Mendonça D, Quintanilha A, Costa E, Belo L, Santos-Silva A. Oxidized low-density lipoprotein and lipoprotein(a) levels in chronic kidney disease patients under hemodialysis: Influence of adiponectin and of a polymorphism in the apolipoprotein(a) gene. Hemodial Int 2012; 16:481-90. [DOI: 10.1111/j.1542-4758.2012.00687.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Sandra Ribeiro
- Faculdade Farmácia; Serviço de Bioquímica; Universidade do Porto; Porto; Portugal
| | | | - Gil Silva
- Faculdade Farmácia; Serviço de Bioquímica; Universidade do Porto; Porto; Portugal
| | | | | | - Vasco Miranda
- FMC, Dinefro, Diálises e Nefrologia, SA; Porto; Portugal
| | - Emília Vieira
- Unidade de Genética Molecular, Centro de Genética Médica Dr. Jacinto Magalhães (INSARJ); Porto; Portugal
| | - Rosário Santos
- Unidade de Genética Molecular, Centro de Genética Médica Dr. Jacinto Magalhães (INSARJ); Porto; Portugal
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Coimbra S, Oliveira H, Reis F, Belo L, Rocha S, Quintanilha A, Figueiredo A, Teixeira F, Castro E, Rocha-Pereira P, Santos-Silva A. Erythroid disturbances before and after treatment of Portuguese psoriasis vulgaris patients: a cross-sectional and longitudinal study. Am J Clin Dermatol 2012; 13:37-47. [PMID: 21888450 DOI: 10.2165/11592110-000000000-00000] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
BACKGROUND A few studies in psoriasis vulgaris patients have reported changes suggesting red blood cell (RBC) damage is linked to neutrophil activation, oxidative stress, and psoriasis worsening. OBJECTIVE The aim of this study was to evaluate erythroid disturbances in Portuguese psoriasis vulgaris patients, before, during, and after treatment. METHODS A cross-sectional study (n = 73 patients vs 40 healthy control subjects) followed by a longitudinal study (n = 47 patients) was performed, with assessments before, and at 3, 6, and 12 weeks of therapy (10 patients started topical treatment, 17 narrow-band UVB, and 20 photochemotherapy [psoralen plus UVA; PUVA]). Evaluations included hematologic data, total bilirubin levels, membrane-bound hemoglobin (MBH), membrane protein band 3 profile, total plasma antioxidant status (TAS), lipid peroxidation (thiobarbituric acid [TBA] assay), elastase, lactoferrin, and C-reactive protein (CRP). RESULTS Before treatment, patients presented with higher leukocyte/neutrophil and reticulocyte counts, elastase, lactoferrin, TBA, TBA/TAS, reticulocyte production index, total bilirubin and MBH values, lower RBC and hematocrit, higher percentages of high-molecular-weight aggregates, and lower percentages of band 3 monomer. After treatment, we observed a reversal in most of the parameters. However, patients still presented with values suggestive of accelerated RBC damage, removal, and production, as most of the parameters were still higher than those in the control group; the same occurred with CRP. CONCLUSION Our data suggest that psoriasis vulgaris triggers an inflammatory response, with release of acute-phase reactants, reactive oxygen species, cationic proteins, and proteases, leading to enhanced RBC damage/aging and, ultimately, to enhanced RBC removal. These assumptions were strengthened by the observation that, with treatment, all of these changes were reversed, the inflammation was reduced, the production of reticulocytes was increased, and the RBCs presented changes usually observed in younger/less damaged RBCs. These erythroid changes were enhanced with PUVA therapy, probably due to the more pronounced clearing of the lesions, as suggested by Psoriasis Area and Severity Index (PASI) scores. Finally, after treatment, a residual inflammation still persisted that might contribute to the observed erythroid disturbances.
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Affiliation(s)
- Susana Coimbra
- Department of Biological Sciences, Biochemistry, University of Porto, Portugal.
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Rocha S, Costa E, Rocha-Pereira P, Ferreira F, Cleto E, Barbot J, Quintanilha A, Belo L, Santos-Silva A. Erythropoiesis versus inflammation in Hereditary Spherocytosis clinical outcome. Clin Biochem 2011; 44:1137-1143. [PMID: 21704613 DOI: 10.1016/j.clinbiochem.2011.06.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2011] [Revised: 05/30/2011] [Accepted: 06/05/2011] [Indexed: 11/18/2022]
Abstract
OBJECTIVES This study aimed to evaluate the relationship between erythropoiesis and inflammation, in Hereditary Spherocytosis (HS) clinical outcome. DESIGN AND METHODS We studied 26 controls and 82 HS patients presenting mild (n = 49) and severer (n = 33) HS forms. We evaluated plasma levels of EPO, sTfR, ferritin, iron, folic acid, vitamin B12, TNF-α, IFN-γ, elastase and lactoferrin; leukocyte and reticulocyte counts and RPI were determined. RESULTS All HS patients showed significantly higher EPO, sTfR, reticulocytes and RPI but only mild HS presented normal hemoglobin levels; the positive significant correlations between EPO and sTfR, reticulocytes and RPI observed in mild HS were not observed in severer HS patients. HS patients presented with higher levels of neutrophils, TNF-α, IFN-γ, elastase, lactoferrin and ferritin. CONCLUSIONS Our data show HS as a disease linked to enhanced erythropoiesis that is disturbed in the more severe forms, to which inflammation may contribute, at least in part.
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Affiliation(s)
- Susana Rocha
- Faculdade de Farmácia, Universidade do Porto, Rua Aníbal Cunha, 164, 4050-047, Porto, Portugal; Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Rua do Campo Alegre, 823, 4150-180, Porto, Portugal.
| | - Elísio Costa
- Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Rua do Campo Alegre, 823, 4150-180, Porto, Portugal; Instituto de Ciências da Saúde, Universidade Católica Portuguesa, Campus da Asprela, Rua Dr. António Bernardino Almeida, 4200-072, Porto, Portugal.
| | - Petronila Rocha-Pereira
- Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Rua do Campo Alegre, 823, 4150-180, Porto, Portugal; Centro de Investigação em Ciências da Saúde (CICS), Universidade da Beira Interior, Av. Infante D. Henrique, 6201-506, Covilhã, Portugal.
| | - Fátima Ferreira
- Serviço de Hematologia Clínica, Hospital S. João, Alameda Prof. Hernâni Monteiro, 4200-319, Porto, Portugal.
| | - Esmeralda Cleto
- Sector de Hematologia Pediátrica, Centro Hospitalar do Porto (CHP) - Hospital Santo António, Largo Prof. Abel Salazar, 4099-001, Porto, Portugal.
| | - José Barbot
- Serviço de Hematologia, Centro Hospitalar do Porto (CHP) - Hospital Maria Pia, Largo Prof. Abel Salazar, 4099-001, Porto, Portugal.
| | - Alexandre Quintanilha
- Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Rua do Campo Alegre, 823, 4150-180, Porto, Portugal; Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Largo Prof. Abel Salazar, 2, 4099-003, Porto, Portugal.
| | - Luís Belo
- Faculdade de Farmácia, Universidade do Porto, Rua Aníbal Cunha, 164, 4050-047, Porto, Portugal; Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Rua do Campo Alegre, 823, 4150-180, Porto, Portugal.
| | - Alice Santos-Silva
- Faculdade de Farmácia, Universidade do Porto, Rua Aníbal Cunha, 164, 4050-047, Porto, Portugal; Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Rua do Campo Alegre, 823, 4150-180, Porto, Portugal.
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Kuo KL, Hung SC, Tarng DC, Selim G, Stojceva-Taneva O, Tozija L, Gelev S, Stojcev N, Dzekova P, Trajcevska L, Severova G, Pavleska S, Sikole A, Combe C, Thumma J, Gillespie B, De Sequera P, Yamamoto H, Robinson B, Matsushita Y, Tasaki H, Tohara Y, Yamauchi E, Matsuoka K, Arizono K, Bellasi A, Ferramosca E, Ratti C, Block G, Raggi P, Drozdz M, Krasniak A, Chmiel G, Podolec P, Pasowicz M, Tracz W, Kowalczyk-Michalek M, Sulowicz W, Kalantzi K, Korantzopoulos P, Bechlioulis A, Vlachopanou A, Foulidis V, Pagiati E, Nikolopoulos P, Gouva C, Arroyave I, Rodelo J, Cardona M, Garcia A, Henao J, Mejia G, Rico J, Arbelaez M, Fujimori A, Okada S, Yamamoto K, Okamoto S, Kamiura N, Sakai M, Tanikake M, Kutlay S, Sengul S, Keven K, Nergizoglu G, Erturk S, Ates K, Duman N, Karatan O, Erbay B, Sameiro-Faria M, Costa E, Rocha-Pereira P, Borges A, Nascimento H, Mendonca D, Amado L, Reis F, Miranda V, Quintanilha A, Belo L, Santos-Silva A, Oh JS, Kim SM, Sin YH, Kim JK, Ishihara M, Otsubo S, Kimata N, Akiba T, Nitta K, Kim KM, Baek CH, Kim SB, Testa A, Sanguedolce MC, Spoto B, Mallamaci F, Malatino L, Tripepi G, Zoccali C, Lee JE, Moon SJ, Kim JK, An HR, Ha SK, Pakr HC, Bahlmann FH, Becker E, Sperber V, Triem S, Noll C, Zewinger S, Fliser D, Laufs U, Thijssen S, Usvyat LA, Raimann JG, Balter P, Kotanko P, Levin NW, Hornum M, Bay JT, Clausen P, Melchior Hansen J, Mathiesen ER, Feldt-Rasmussen B, Garred P, Sural S, Panja CS, Bhattacharya SK, Cernaro V, Lacquaniti A, Lorenzano G, Romeo A, Donato V, Buemi M, Raimann JG, Usvyat L, Thijssen S, Rogus J, Lacson E, Kotanko P, Levin NW, Robinson BM, Karaboyas A, Sen A, Hecking M, Mendelssohn D, Jadoul M, Kawanishi H, Saran R, Kolarz M, Undas A, Wyroslak J, Malyszko J, Klejna K, Naumnik B, Koc-Zurawska E, Mysliwiec M, Piecha G, Kuczera P, Adamczak M, Fedorova OV, Bagrov AY, Wiecek A, Gungor O, Kircelli F, Asci G, Carrero JJ, Tatar E, Demirci M, Toz H, Ozkahya M, Ok E, Bansal V, Shareain K, Hoppensteadt D, Litinas E, Fareed J, Kim MJ, Lee SW, Song JH, Kweon J, Kim WH, Sasaki K, Yasuda K, Hatanaka M, Hayashi T, Katsipi I, Tatsiopoulos A, Papanikolaou P, Doulgerakis C, Kollia K, Kardouli E, Asmanis E, Gennadiou M, Kyriazis J, Panizo S, Barrio-Vazquez S, Carrillo-Lopez N, Fernandez-Vazquez A, Braga S, Rodriguez-Rebollar A, Naves-Diaz M, Cannata-Andia JB, Nikodimopoulou M, Liakos S, Kapoulas S. Cardiovascular complications in CKD 5D (1). Clin Kidney J 2011. [DOI: 10.1093/ndtplus/4.s2.38] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Pereira R, Rocha S, Borges A, Nascimento H, Reis F, Miranda V, Sameiro Faria MD, Quintanilha A, Belo L, Costa E, Santos-Silva A. Elastase release during the hemodialysis procedure seems to induce changes in red blood cell membrane proteins. Hemodial Int 2011; 15:429-31. [PMID: 21624040 DOI: 10.1111/j.1542-4758.2011.00554.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Coimbra S, Oliveira H, Reis F, Belo L, Rocha S, Quintanilha A, Figueiredo A, Teixeira F, Castro E, Rocha-Pereira P, Santos-Silva A. Circulating adipokine levels in Portuguese patients with psoriasis vulgaris according to body mass index, severity and therapy. J Eur Acad Dermatol Venereol 2011; 24:1386-94. [PMID: 20337818 DOI: 10.1111/j.1468-3083.2010.03647.x] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND Psoriasis vulgaris is associated with overweight/obesity and with increased C-reactive protein (CRP), tumour necrosis factor (TNF)-α, interleukin (IL)-6, leptin and resistin levels and decreased adiponectin levels. OBJECTIVES To understand the role/relationship of adipokines, as well as CRP, in a Portuguese psoriatic population, by assessing the relationship of their levels with psoriasis severity, defined by Psoriasis Area and Severity Index (PASI), with obesity, defined by body mass index (BMI), and psoriasis therapy. METHODS A cross-sectional (n=66) and longitudinal study (before and after 12 weeks of therapy; n=44) was performed; 10 patients started topical treatment, 17 narrow-band ultraviolet B (NBUVB) and 17 psolaren associated with UVA (PUVA). RESULTS Patients presented significantly higher BMI, leptin, resistin, TNF-α, IL-6 and CRP and significantly lower adiponectin values. CRP and IL-6 correlated with PASI. Adiponectin and leptin were more altered in patients with higher BMI. Concerning severity, CRP, resistin and adiponectin were more altered in the severer forms. After treatment, a significant reduction in PASI, CRP, resistin, TNF-α and IL-6, and a significant rise in adiponectin were observed. Nonetheless, CRP and adiponectin remained different from those of control. Concerning therapies, topical therapy was not associated with any significant change, except for TNF-α. After NBUVB, a significant reduction was observed in TNF-α and in CRP. For PUVA, we observed a significant reduction in TNF-α, IL-6 and CRP, and a significant increase in adiponectin. CONCLUSION In psoriatic patients, increased overweight/obesity was associated with raised leptin levels and decreased adiponectin levels. Leptin may contribute to enhance the inflammatory process in overweight/obese psoriatic patients. Resistin, IL-6, CRP and adiponectin levels appear to be dependent on psoriasis severity. CRP, together with IL-6, appears to be a useful marker of psoriasis severity. Both NBUVB and PUVA were effective; however, PUVA results seem to be more successful. Nonetheless, after NBUVB and PUVA, a low-grade inflammation still persists.
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Affiliation(s)
- S Coimbra
- Faculdade de Farmácia, Serviço de Bioquímica, Universidade do Porto, Porto, Portugal.
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Rocha S, Costa E, Rocha-Pereira P, Ferreira F, Cleto E, Barbot J, Quintanilha A, Belo L, Santos-Silva A. Complementary markers for the clinical severity classification of hereditary spherocytosis in unsplenectomized patients. Blood Cells Mol Dis 2010; 46:166-70. [PMID: 21138793 DOI: 10.1016/j.bcmd.2010.11.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2010] [Revised: 10/22/2010] [Accepted: 10/25/2010] [Indexed: 11/16/2022]
Abstract
Hereditary spherocytosis (HS) is usually classified as mild, moderate or severe using conventional features, namely, hemoglobin (Hb) concentration, reticulocyte count and bilirubin levels, which do not always contribute to an adequate clinical classification. The aim of our study was to establish the importance of some laboratory routine parameters, as markers of HS clinical outcome, by studying a control group (n=26) and unsplenectomized HS patients (n=82) presenting mild, moderate or severe HS. We performed a basic hematologic study and evaluated the reticulocyte count, bilirubin, erythropoietin (EPO) and soluble transferrin receptor (sTfR) levels; the osmotic fragility (OFT) and criohemolysis tests (CHT); the ratios Hb/MCHC (mean cell hemoglobin concentration), Hb/RDW (red cell distribution width) and MCHC/RDW, were calculated. Hb changed significantly in accordance with HS severity, but not reticulocytes or bilirubin. We found that MCHC, RDW, EPO, sTfR, OFT, CHT and the calculated ratios were significantly changed in patients, and, therefore, were valuable as complementary diagnostic tools for HS. Moreover, RDW, Hb/MCHC, Hb/RDW and MCHC/RDW changed significantly with worsening of HS; thus, they are also good markers for the clinical outcome of HS. In conclusion, we propose the use of these routine parameters as useful to complement the analysis of HS severity.
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Affiliation(s)
- Susana Rocha
- Serviço de Bioquímica, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal.
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Coimbra S, Oliveira H, Reis F, Belo L, Rocha S, Quintanilha A, Figueiredo A, Teixeira F, Castro E, Rocha-Pereira P, Santos-Silva A. Psoriasis therapy and cardiovascular risk factors: a 12-week follow-up study. Am J Clin Dermatol 2010; 11:423-32. [PMID: 20429617 DOI: 10.2165/11319310-000000000-00000] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Psoriatic patients present with an increased frequency of cardiovascular events. OBJECTIVE To study the impact of psoriasis duration and therapy on traditional and new cardiovascular risk factors. STUDY DESIGN A longitudinal study performed between 2005 and the first trimester of 2008. Each patient was followed up for 12 weeks, and was observed before and 3, 6, and 12 weeks after starting therapy. SETTING Patients attending the Dermatology Service, University Hospital of Coimbra, Coimbra, Portugal were enrolled. SUBJECTS Thirty-four patients with psoriasis vulgaris and 37 healthy volunteers as controls. MAIN OUTCOME MEASURES Psoriasis Area and Severity Index (PASI); lipid profile, oxidized low-density lipoprotein (oxLDL), oxLDL/low-density lipoprotein (LDL), total antioxidant status, lipid peroxidation, C-reactive protein (CRP), and circulating levels of adiponectin. INTERVENTION Ten patients started therapy with topical treatment, 11 with narrow-band UVB radiation (NB-UVB), and 13 with psolaren plus UVA (PUVA). RESULTS Before starting therapy, psoriatic patients presented with several risk changes in their lipid profiles, and significantly higher CRP, oxLDL, and oxLDL/LDL, and lower adiponectin levels (vs control subjects), which may further contribute to inflammation and atherogenesis. After treatment of the patients, although no significant differences were observed in the lipid profile compared with baseline, some changes suggested that the treatment could somehow alter lipid metabolism, as the reduction in high-density lipoprotein cholesterol (HDL-C) and apolipoprotein A and the increase in the atherogenic index cholesterol/HDL-C maintained an even higher significance (as shown by p-values) when compared with the control group. After topical therapy, there was a significant reduction in thiobarbituric acid reactivity only, suggesting that the reduction in the hyperproliferative process within the lesions is important for lipid peroxidation. After NB-UVB therapy, oxLDL/LDL, cholesterol/HDL-C, lipoprotein (a) [Lp(a)], and CRP remained higher than in the control subjects, reflecting persistent inflammation and atherogenic risk. After PUVA treatment, there was a significant reduction in Lp(a), associated with an almost significant increase in apolipoprotein-B (p = 0.054); these changes were not observed after NB-UVB treatment. However, after PUVA and NB-UVB treatment, CRP and, in the NB-UVB group, oxLDL/LDL were persistently higher than controls. CONCLUSION Our data show that psoriatic patients present with several lipid profile changes that seem to be related to the severity of the disease and/or the treatment used. Mild psoriasis patients receiving topical treatment presented before starting therapy with a lipid profile similar to controls, whereas those undergoing NB-UVB and PUVA, who had higher PASI scores, presented with several risk factors. Moreover, PUVA therapy seems to interact in a different way with lipids that might result from an interaction of psoralen with plasma lipids, namely Lp(a). Inflammation, a hallmark of psoriasis, also seems to be related to psoriasis severity. Both NB-UVB and PUVA were effective, as shown by the reduction in PASI score, as well as in the oxidative and inflammatory stress markers. However, after NB-UVB and PUVA, a low-grade inflammatory process still persisted, which might be related to the duration of remission of the disease.
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Affiliation(s)
- Susana Coimbra
- Serviço de Bioquímica, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal.
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Coimbra S, Oliveira H, Reis F, Belo L, Rocha S, Quintanilha A, Figueiredo A, Teixeira F, Castro E, Rocha-Pereira P, Santos-Silva A. Interleukin (IL)-22, IL-17, IL-23, IL-8, vascular endothelial growth factor and tumour necrosis factor-α levels in patients with psoriasis before, during and after psoralen-ultraviolet A and narrowband ultraviolet B therapy. Br J Dermatol 2010; 163:1282-90. [PMID: 20716219 DOI: 10.1111/j.1365-2133.2010.09992.x] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BACKGROUND Several cross-sectional studies have shown that different cytokines and growth factors are enhanced in psoriasis. OBJECTIVES We aimed to understand the role/relation of interleukin (IL)-22, IL-17, IL-23, IL-8, vascular endothelial growth factor (VEGF) and tumour necrosis factor (TNF)-α in psoriasis vulgaris, addressing their levels and changes before, during and after psoralen-ultraviolet A (PUVA) and narrowband ultraviolet B (NB-UVB) treatment. METHODS A cross-sectional and a longitudinal study (n = 34) - before (T0) and at 3 (T3), 6 (T6) and 12 (T12) weeks of NB-UVB and PUVA therapy - were performed; 17 patients started NB-UVB and 17 PUVA, and IL-22, IL-17, IL-23, IL-8, TNF-α and VEGF levels were evaluated. RESULTS At T0, compared with controls (n = 20), all the parameters were significantly higher in patients, except for TNF-α. Both NB-UVB and PUVA treatment gave, at T3, a significant decrease in TNF-α and IL-23; IL-22 and IL-17 decreased significantly at T6; all parameters and Psoriasis Area and Severity Index decreased significantly at T12. However, in both groups, at T12, VEGF was still significantly higher than control. CONCLUSIONS Psoriasis seems to be a complex disease in which the cytokine network is disturbed, namely in levels of IL-22, IL-17, IL-23, IL-8, TNF-α and VEGF. NB-UVB and PUVA follow-up studies suggested that the reduction in the IL-23/Th17 axis might be important in the pathogenic mechanisms of psoriasis. Further follow-up studies of patients with psoriasis treated with these and other therapies could be very helpful for the understanding of the disturbance in the cytokine network in psoriasis and indirectly in its pathogenesis.
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Affiliation(s)
- S Coimbra
- Serviço de Bioquímica, Faculdade de Farmácia, Universidade do Porto, 4050-047 Porto, Portugal.
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Nascimento H, Rocha S, Rego C, Mansilha HF, Quintanilha A, Santos-Silva A, Belo L. Leukocyte Count versus C-Reactive Protein Levels in Obese Portuguese Patients Aged 6-12 Years Old. Open Biochem J 2010; 4:72-6. [PMID: 20676221 PMCID: PMC2911598 DOI: 10.2174/1874091x01004010072] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2010] [Revised: 02/26/2010] [Accepted: 03/04/2010] [Indexed: 12/31/2022] Open
Abstract
Objectives: to evaluate whether total and differential WBC counts are altered in young obese patients (aged 6-12 years) and if a relationship exists between WBC counts and the severity of obesity as well as with CRP level. Materials and Methods: a group of 77 obese patients [32 males and 45 females] and 19 controls [7 males and 12 females] were studied. Total WBC count was performed by using an automatic blood cell counter. Blood cell morphology and WBC differential count were evaluated in Wright stained blood films. The plasma levels of CRP were evaluated by immunoturbidimetry. Results: obese participants presented with a statistically significant higher neutrophil percentage and CRP levels when compared to controls; the median CRP value was about 5 times higher than that observed in controls. Absolute neutrophil count and neutrophil/lymphocyte ratio were also higher in patients, though without statistical significance. The parameters that were statistically significant related with adiposity markers were neutrophil count and CRP levels. The neutrophil count was positively and statistically correlated with body mass index (BMI), BMI z-score, waist circumference and waist/height ratio, and also with CRP levels. In multiple regression analysis, the only variable that remained statistically associated with neutrophil count was CRP (neutrophil count = 2.612 + 0.439lnCRP; standardised coefficient/beta: 0.384, P=0.001). When performing multiple regression without CRP, the only variable that remained statistically associated with neutrophil count was BMI. Conclusions: our results demonstrated in obese patients aged 6-12 years, a significant change in the differential leukocyte count towards neutrophilia, together with a significant higher CRP concentration, and that absolute neutrophil count correlates with obesity markers and with CRP levels. Our data also indicate that neutrophil count, a current clinically used low-cost parameter, may be used as an obesity-related inflammatory marker in young obese patients.
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Affiliation(s)
- Henrique Nascimento
- Department of Biochemistry, Faculty of Pharmacy, University of Porto, 4050-047 Porto, Portugal
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Rocha S, Costa E, Rocha-Pereira P, Ferreira F, Cleto E, Barbot J, Quintanilha A, Belo L, Santos-Silva A. Erythrocyte membrane protein destabilization versus clinical outcome in 160 Portuguese Hereditary Spherocytosis patients. Br J Haematol 2010; 149:785-94. [DOI: 10.1111/j.1365-2141.2010.08166.x] [Citation(s) in RCA: 19] [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] [Indexed: 11/30/2022]
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Nascimento H, Belo L, Fernandes J, Rocha S, Quintanilha A, Santos-Silva A. In vitrostudies with ‘acatalasemic-like’ erythrocytes and hydrogen peroxide: attention to the formation of lysis resistant erythrocytes. Int J Lab Hematol 2010; 32:127-31. [PMID: 19170773 DOI: 10.1111/j.1751-553x.2008.01129.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- H Nascimento
- Serviço Bioquímica, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal.
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Nascimento H, Silva L, Lourenço P, Weinfurterová R, Castro E, Rego C, Ferreira H, Guerra A, Quintanilha A, Santos-Silva A, Belo L. Lipid profile in Portuguese obese children and adolescents: interaction of apolipoprotein E polymorphism with adiponectin levels. ACTA ACUST UNITED AC 2009; 163:1030-6. [PMID: 19884594 DOI: 10.1001/archpediatrics.2009.190] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
OBJECTIVE To evaluate how the lipid profile associates with apolipoprotein (apo) E gene polymorphism, plasma adiponectin level, and body mass index (BMI) z score in Portuguese youth. DESIGN Transversal cohort study. SETTING Hospital de São João and Hospital de Crianças Maria Pia, Porto, Portugal, between May 2006 and March 2007. PARTICIPANTS One hundred thirty-eight obese children and adolescents (62 boys; mean age, 10.8 years [range, 4-16 years]). Participants were grouped according to (1) apo E polymorphism: presence of the apo E alleles 2 or 4 in E2 (n = 11) and E4 (n = 31) carriers, respectively, or as E3/E3 (n = 94) (carriers of E2/E4 [n = 2] were excluded from apo E analysis because they carry both alleles) and (2) BMI z score: group 1, BMI z score less than 2 (n = 31); group 2, BMI z score of 2 or more and less than 2.5 (n = 65); and group 3, BMI z score of 2.5 or more (n = 42). MAIN OUTCOME MEASURES Lipid variable comparisons between apo E polymorphism and BMI z score groups and influence of BMI z score and adiponectin level, adjusted for apo E polymorphism, on total cholesterol to high-density lipoprotein cholesterol and apo A-I to apo B ratios. RESULTS E4 carriers presented with a worse lipid profile when compared with E2 and E3/E3 carriers. There was also a clear risk of worsening for the group with the highest BMI z score. Apolipoprotein E polymorphism, BMI z score, and adiponectin level were significantly associated with total cholesterol to high-density lipoprotein cholesterol (standardized beta coefficient = 0.283, 0.354, and -0.292, respectively; P < .001 for all) and apo A-I to apo B (standardized beta coefficient = -0.372, -0.284, and 0.327, respectively; P < .001 for all) ratios. CONCLUSION Our data suggest a more atherogenic lipid profile for some apo E genotypes and for increasing BMI z score, whereas adiponectin level seems to play a protective role.
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Affiliation(s)
- Henrique Nascimento
- Departamento de Bioquímica, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal.
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Coimbra S, Oliveira H, Reis F, Belo L, Rocha S, Quintanilha A, Figueiredo A, Teixeira F, Castro E, Rocha-Pereira P, Santos-Silva A. C-reactive protein and leucocyte activation in psoriasis vulgaris according to severity and therapy. J Eur Acad Dermatol Venereol 2009; 24:789-96. [PMID: 20002653 DOI: 10.1111/j.1468-3083.2009.03527.x] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND Psoriasis vulgaris is a chronic recurrent inflammatory skin disease and psoriatic lesions have shown leucocyte infiltration. OBJECTIVES We aimed to study C-reactive protein (CRP) and leucocyte activation markers/inhibitors as potential monitors of psoriasis vulgaris. METHODS A cross-sectional (n = 73) and a longitudinal study (before, at 3, 6 and 12 weeks of therapy; n = 47) was performed; 10 patients started topical treatment, 17 narrow-band ultraviolet light B (NBUVB) and 20 psolaren associated to UVA (PUVA); psoriasis severity was defined by Psoriasis Area and Severity Index (PASI). RESULTS Compared with control (n = 38), we found higher CRP levels, total leukocyte/neutrophil count, elastase, lactoferrin and alpha1-antitrypsin. Increasing PASI was linked to increasing CRP and a trend to higher elastase and lactoferrin, suggesting that worsening enhances inflammatory response with neutrophil activation. CRP correlated with PASI, total leucocytes, neutrophils, elastase, lactoferrin and alpha1-antitrypsin. NBUVB and PUVA presented similar effects. CONCLUSION We propose CRP as a useful marker of psoriasis severity that could be used to monitor psoriasis and its treatment, and, together with PASI and elastase, could also be used as a global index of severity.
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Affiliation(s)
- S Coimbra
- Faculdade de Farmácia, Serviço de Bioquímica, Universidade do Porto, Porto, Portugal.
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Catarino C, Rebelo I, Belo L, Rocha S, Castro EB, Patrício B, Quintanilha A, Santos-Silva A. Fetal and maternal angiogenic/anti-angiogenic factors in normal and preeclamptic pregnancy. Growth Factors 2009; 27:345-51. [PMID: 19919522 DOI: 10.3109/08977190903184670] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Few studies evaluated angiogenic/anti-angiogenic factors and endothelial (dys)function in both maternal and umbilical cord blood (UCB) in preeclampsia (PE). We aimed to clarify the role of placental growth factor (PlGF), vascular endothelial growth factor (VEGF), soluble vascular endothelial growth factor receptor 1 (VEGFR-1) and tissue plasminogen activator (tPA), by evaluating them in maternal and UCB in 42 normal and 46 preeclamptic (PEc) cases. In PE, maternal and UCB PlGF were significantly lower; maternal VEGF, sVEGFR-1 and tPA were significantly higher. In UCB, sVEGFR-1 and tPA were significantly higher in PEc cases, while VEGF and PlGF were significantly lower. A significant correlation between maternal and UCB sVEGFR-1, and between sVEGFR-1 and tPA both in maternal and UCB, was observed in PEc cases. In maternal and UCB circulation in PE, a close interaction seems to exist between endothelial dysfunction and angiogenesis disturbance, and sVEGFR-1 seems to play a central role in those disturbances.
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Affiliation(s)
- Cristina Catarino
- Instituto Biologia Molecular Celular (IBMC), Universidade Porto, Porto, Portugal.
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Costa E, Swinkels DW, Laarakkers CM, Rocha-Pereira P, Rocha S, Reis F, Teixeira F, Miranda V, do Sameiro Faria M, Loureiro A, Quintanilha A, Belo L, Santos-Silva A. Hepcidin serum levels and resistance to recombinant human erythropoietin therapy in haemodialysis patients. Acta Haematol 2009; 122:226-9. [PMID: 19887781 DOI: 10.1159/000253590] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2009] [Accepted: 08/10/2009] [Indexed: 11/19/2022]
Affiliation(s)
- Elísio Costa
- Instituto de Ciências da Saúde, Universidade Católica Portuguesa, Porto, Portugal.
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Costa E, Rocha S, Rocha-Pereira P, Castro E, Miranda V, Faria MDS, Loureiro A, Quintanilha A, Belo L, Santos-Silva A. Changes in Red Blood Cells Membrane Protein Composition during Hemodialysis Procedure. Ren Fail 2009; 30:971-5. [DOI: 10.1080/08860220802422036] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [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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Rocha S, Costa E, Coimbra S, Nascimento H, Catarino C, Rocha-Pereira P, Quintanilha A, Belo L, Santos-Silva A. Linkage of cytosolic peroxiredoxin 2 to erythrocyte membrane imposed by hydrogen peroxide-induced oxidative stress. Blood Cells Mol Dis 2009; 43:68-73. [DOI: 10.1016/j.bcmd.2009.03.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2009] [Accepted: 03/08/2009] [Indexed: 10/20/2022]
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Catarino C, Rebelo I, Belo L, Rocha-Pereira P, Rocha S, Bayer Castro E, Patrício B, Quintanilha A, Santos-Silva A. Erythrocyte changes in preeclampsia: relationship between maternal and cord blood erythrocyte damage. J Perinat Med 2009; 37:19-27. [PMID: 18783307 DOI: 10.1515/jpm.2009.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Our aim was to evaluate red blood cell (RBC) changes in normal and preeclamptic cases, and to assess the relationship between maternal and umbilical cord blood (UCB) changes. We evaluated markers of RBC damage: membrane bound hemoglobin (MBH) and band 3 profile - high molecular weight aggregates (HMWSAg), monomer and proteolytic fragments. RBCs are marked for removal by a rise in MBH and in HMWAg. Preeclamptic mothers had significantly higher MBH, RBC count, hemoglobin, hematocrit, reticulocytes and reticulocyte production index (RPI). In UCB from newborns of preeclamptic mothers, we found similar HMWAg, RBC count, hemoglobin and hematocrit; significantly higher MBH, mean cell hemoglobin concentration, mean cell volume, RPI and reticulocyte count. Maternal MBH and HMWAg values were positively and significantly correlated with MBH and HMWAg values in UCB, in normal as well as in preeclamptic pregnancies; in preeclampsia, a significant positive correlation between UCB and maternal bilirubin, and between RPI and proteinuria were found. We conclude that markers of RBC damage/production are altered in preeclampsia, in both UCB and maternal circulation. Our data show similarities between UCB and maternal RBC changes, as suggested by the correlations of markers of RBC damage.
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Nascimento H, Silva L, Lourenço P, Vieira E, dos Santos R, Rego C, Ferreira H, Quintanilha A, Santos-Silva A, Belo L. Lipoprotein(a) Levels in Obese Portuguese Children and Adolescents: Contribution of the Pentanucleotide Repeat (TTTTA)n Polymorphism in the Apolipoprotein(a) Gene. ACTA ACUST UNITED AC 2009; 163:393-4. [DOI: 10.1001/archpediatrics.2009.17] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Costa E, Rocha S, Rocha-Pereira P, Castro E, Miranda V, Faria MDS, Loureiro A, Quintanilha A, Belo L, Santos-Silva A. Band 3 Profile as a Marker of Erythrocyte Changes in Chronic Kidney Disease Patients. ACTA ACUST UNITED AC 2008. [DOI: 10.2174/1874241600801010057] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Costa E, Rocha S, Rocha-Pereira P, Castro E, Reis F, Teixeira F, Miranda V, Do Sameiro Faria M, Loureiro A, Quintanilha A, Belo L, Santos-Silva A. Cross-talk between inflammation,coagulation/fibrinolysis and vascular access in hemodialysis patients. J Vasc Access 2008; 9:248-253. [PMID: 19085894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023] Open
Abstract
This work aimed to study the association between fibrinolytic/endothelial cell function and inflammatory markers in chronic kidney disease (CKD) patients undergoing hemodialysis (HD) and recombinant human erythropoietin (rhEPO) therapies, and its relationship with the type of vascular access (VA) used for the HD procedure. As fibrinolytic/endothelial cell function markers we evaluated plasminogen activator inhibitor type-1 (PAI-1), tissue plasminogen activator (tPA) and D-dimers, and as inflammatory markers; C-reactive protein (CRP), soluble interleukin (IL)-2 receptor (s-IL2R), IL-6 and serum albumin levels. The study was performed in 50 CKD patients undergoing regular HD, 11 with a central venous dialysis catheter (CVC) and 39 with an arteriovenous fistula (AVF), and in 25 healthy controls. Compared to controls, CKD patients presented with significantly higher levels of CRP, s-IL2R, IL-6 and D-dimers, and significantly lower levels of PAI-1. The tPA/PAI-1 ratio was significantly higher in CKD patients. We also found statistical significant correlations in CKD patients between D-dimerslevels and inflammatory markers: CRP, albumin, s-IL2R and IL-6. When comparing the two groups of CKD patients, we found that those with a CVC presented statistically significant lower levels of hemoglobin concentration and albumin, and higher levels of CRP, IL-6, D-dimers and tPA. Our results showed an association between fibrinolytic/ endothelial cell function and increased inflammatory markers in CKD patients. The increased levels of Ddimer, tPA and inflammatory markers in CKD patients using a CVC, led us to propose a relationship between the type of VA chosen for HD, and the risk of thrombogenesis.
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Affiliation(s)
- E Costa
- Instituto de Ciências da Saúde da Universidade Católica Portuguesa, Porto, Portugal.
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Belo L, Santos-Silva A, Quintanilha A, Rebelo I. Similarities Between Pre-Eclampsia and Atherosclerosis: A Protective Effect of Physical Exercise? Curr Med Chem 2008; 15:2223-9. [DOI: 10.2174/092986708785747553] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Costa E, Rocha S, Rocha-Pereira P, Reis F, Castro E, Teixeira F, Miranda V, do Sameiro Faria M, Loureiro A, Quintanilha A, Belo L, Santos-Silva A. DMT1 (NRAMP2/DCT1) genetic variability and resistance to recombinant human erythropoietin therapy in chronic kidney disease patients under haemodialysis. Acta Haematol 2008; 120:11-3. [PMID: 18667808 DOI: 10.1159/000149496] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2008] [Accepted: 05/23/2008] [Indexed: 11/19/2022]
Affiliation(s)
- Elísio Costa
- Faculdade de Farmácia, Serviço de Bioquímica, Universidade do Porto, Porto, Portugal.
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Catarino C, Rebelo I, Belo L, Rocha-Pereira P, Rocha S, Castro EB, Patrício B, Quintanilha A, Santos-Silva A. Fetal lipoprotein changes in pre-eclampsia. Acta Obstet Gynecol Scand 2008; 87:628-34. [PMID: 18568462 DOI: 10.1080/00016340802085318] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVE To evaluate the impact of maternal lipid changes upon the fetus in pre-eclampsia (PE) by evaluating lipid profile simultaneously in maternal and umbilical cord blood (UCB). DESIGN Case-control study performed on healthy and pre-eclamptic pregnant women and their neonates. SETTING The Department of Obstetrics and Gynecology, Hospital S. Joao and Faculty of Pharmacy, Porto, Portugal. SAMPLES Forty-two healthy pregnancies and 46 pregnancies complicated with PE. Methods. Total cholesterol (TChol), HDL-cholesterol (HDLc), LDL-cholesterol (LDLc) and triglycerides (TG) levels were determined using enzymatic methods. Apolipoprotein (apo) A-I, apoB and lipoprotein (a) [Lp(a)] values were measured by immunoturbidimetry. MAIN OUTCOME MEASURES Fetal and maternal plasma levels of TChol, HDLc, LDLc, TG, apoA-I, apoB and Lp(a). RESULTS Pre-eclamptic women presented significantly higher values for TChol, LDLc, HDLc, TG, apoA-I and apoB compared to normal pregnant women. In the UCB from pre-eclamptic pregnancies, we observed significantly lower values for HDLc and apoA-I, and significantly higher TG concentrations and LDLc/HDLc ratio when compared to normal cases. A positive correlation was observed between maternal TG levels and proteinuria, a marker of PE severity (r =0.40, p <0.01). CONCLUSIONS Our data suggest that pre-eclamptic pregnancy is associated with an enhanced hyperlipidemia, which seems to have a negative impact on fetal lipid profile, as reflected by a higher atherogenic LDLc/HDLc ratio and higher TG levels. These children, born of women with PE, may deserve a closer clinical follow-up later in life.
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Affiliation(s)
- Cristina Catarino
- Instituto Biologia Molecular e Celular (IBMC), Universidade Porto, Porto, Portugal.
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Rocha S, Vitorino RM, Lemos-Amado FM, Castro EB, Rocha-Pereira P, Barbot J, Cleto E, Ferreira F, Quintanilha A, Belo L, Santos-Silva A. Presence of cytosolic peroxiredoxin 2 in the erythrocyte membrane of patients with hereditary spherocytosis. Blood Cells Mol Dis 2008; 41:5-9. [DOI: 10.1016/j.bcmd.2008.02.008] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2008] [Revised: 02/14/2008] [Accepted: 02/19/2008] [Indexed: 11/26/2022]
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Costa E, Pereira BJG, Rocha-Pereira P, Rocha S, Reis F, Castro E, Teixeira F, Miranda V, do Sameiro Faria M, Loureiro A, Quintanilha A, Belo L, Santos-Silva A. Role of prohepcidin, inflammatory markers and iron status in resistance to rhEPO therapy in hemodialysis patients. Am J Nephrol 2008; 28:677-83. [PMID: 18354252 DOI: 10.1159/000121478] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2007] [Accepted: 02/14/2008] [Indexed: 11/19/2022]
Abstract
The aim of our study was to assess possible relations between prohepcidin, iron status and inflammatory markers in hemodialysis (HD) patients, as well as its association with resistance to recombinant human erythropoietin (rhEPO) therapy. Fifty HD patients and 25 healthy controls were enrolled in the study. Among HD patients, 25 were non-responders and 25 were responders to rhEPO therapy. Complete blood cell count, reticulocyte count, and circulating levels of ferritin, iron, transferrin saturation, C-reactive protein (CRP), soluble interleukin (IL)-2 receptor (s-IL2R), soluble transferrin receptor (s-TfR), IL-6 and prohepcidin were measured in all patients and controls. HD patients showed higher circulating levels of ferritin, s-TfR, CRP, IL-6, s-IL2R and prohepcidin, and lower levels of transferrin compared to healthy controls. Higher levels of s-TfR, CRP and lower levels prohepcidin were observed among non-responders compared to responders. Prohepcidin levels correlated negatively with s-TfR and reticulocyte count. The weekly rhEPO/kg dose was found to be positively correlated with CRP, hemoglobin and s-TfR. In conclusion, our data show that a close interaction exists between inflammation, iron status and prohepcidin serum levels that ultimately regulate intracellular iron availability. Prohepcidin and s-TfR, together with CRP, may prove to be good markers of resistance to rhEPO therapy in HD patients.
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Affiliation(s)
- Elísio Costa
- Escola Superior de Saúde, Instituto Politécnico de Bragança, Bragança, Portugal.
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Costa E, Rocha S, Rocha-Pereira P, Nascimento H, Castro E, Miranda V, Faria MDS, Loureiro A, Quintanilha A, Belo L, Santos-Silva A. Neutrophil activation and resistance to recombinant human erythropoietin therapy in hemodialysis patients. Am J Nephrol 2008; 28:935-40. [PMID: 18587235 DOI: 10.1159/000142147] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2008] [Accepted: 05/19/2008] [Indexed: 11/19/2022]
Abstract
AIM The aim of this work was to evaluate the neutrophil activation state in chronic kidney disease (CKD) patients under hemodialysis, and its linkage with resistance to recombinant human erythropoietin (rhEPO) therapy. METHODS We studied 63 CKD patients under hemodialysis and rhEPO treatment (32 responders and 31 non-responders to rhEPO therapy). In 20 of the CKD patients (10 responders and 10 non-responders to rhEPO therapy), blood samples were also collected immediately after dialysis. Twenty-six healthy volunteers were included in a control group. Hemoglobin levels, total and differential leukocyte counts, and circulating levels of C-reactive protein (CRP), elastase and lactoferrin were measured in all patients and controls. RESULTS Compared with controls, CKD patients presented with significantly higher CRP, neutrophil and elastase levels. When we compared the 2 groups of patients, we found that non-responders presented statistically significantly higher elastase plasma levels. A positive significant correlation was found between elastase levels and weekly rhEPO dose and CRP serum levels. After the hemodialysis procedure, a statistically significant rise in elastase, lactoferrin and, elastase/neutrophil and lactoferrin/neutrophil ratios were found. CONCLUSIONS Our data show that CKD patients under hemodialysis present higher elastase levels (particularly in non-responding patients), which could be related to the rise in neutrophils, and to be part of the enhanced inflammatory process found in these patients.
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Affiliation(s)
- Elísio Costa
- Faculdade Farmácia, Serviço de Bioquímica, Universidade do Porto, Porto Portugal
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Costa E, Rocha S, Rocha-Pereira P, Castro E, Miranda V, do Sameiro Faria M, Loureiro A, Quintanilha A, Belo L, Santos-Silva A. Altered Erythrocyte Membrane Protein Composition in Chronic Kidney Disease Stage 5 Patients under Haemodialysis and Recombinant Human Erythropoietin Therapy. Blood Purif 2008; 26:267-73. [DOI: 10.1159/000126922] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2007] [Accepted: 12/12/2007] [Indexed: 11/19/2022]
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Abstract
Reactive oxygen species, generated as normal by-products of aerobic metabolism or due to cellular stress, oxidize molecules and cause cell death by apoptosis. The accumulation of oxidized proteins is a hallmark of aging and a number of aging diseases. Oxidation can impair protein function as the proteins are unfolded leading to an increase of protein hydrophobicity and often resulting in the formation of toxic aggregates. The yeast Saccharomyces cerevisiae has been used as a eukaryotic model system to analyze the molecular mechanisms of oxidative stress protection. This paper reviews how the identification in yeast of specific damaged proteins has provided new insights into mechanisms of cytotoxicity and highlights the role of repair and degradative processes, including vacuolar/lysosomal and proteasomal proteolysis, in housekeeping after protein oxidative damage.
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Affiliation(s)
- Vitor Costa
- IBMC, Instituto de Biologia Molecular e Celular, Porto, Portugal.
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Belo L, Santos-Silva A, Quintanilha A, Rebelo I. Pre-eclampsia Versus Cardiovascular Disease Versus CRP. Curr Hypertens Rev 2006. [DOI: 10.2174/157340206778742593] [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: 11/22/2022]
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Belo L, Santos-Silva A, Rocha S, Caslake M, Cooney J, Pereira-Leite L, Quintanilha A, Rebelo I. Fluctuations in C-reactive protein concentration and neutrophil activation during normal human pregnancy. Eur J Obstet Gynecol Reprod Biol 2006; 123:46-51. [PMID: 16260340 DOI: 10.1016/j.ejogrb.2005.02.022] [Citation(s) in RCA: 92] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2004] [Revised: 01/07/2005] [Accepted: 02/25/2005] [Indexed: 10/25/2022]
Abstract
OBJECTIVES To clarify the changes in serum C-reactive protein (CRP) levels and in the neutrophil activation state during normal human pregnancy. MATERIALS AND METHODS A longitudinal study (n=23) was performed during the three trimesters of pregnancy; a group of non-pregnant women (n=24) was used as control. Total and differential leukocyte count, serum concentration of CRP and plasma levels of granulocyte-macrophage colony stimulating factor (GM-CSF) and of lactoferrin and elastase (two indirect markers of neutrophil activation) were measured. RESULTS Pregnancy imposed an inflammatory response in the mother, observed by the significant increment in total white blood cell (WBC) and neutrophil counts and in the circulating levels of CRP, GM-CSF and lactoferrin, in all trimesters of gestation compared with non-pregnant controls. Plasma elastase concentration was also significantly higher in pregnant women, but only in the first trimester of gestation. Regarding the ratios of lactoferrin and elastase per neutrophil, they were significantly lower in pregnant women (all trimesters). During gestation, WBC and neutrophil count increased significantly from the first to the second trimester and remained high in the third period. In contrast, the ratios of lactoferrin and elastase per neutrophil decreased significantly from the first to the second trimester, remaining low in the last trimester. Concerning CRP levels, no consistent changes were observed throughout gestation; 12 cases (52.2%) presented fluctuations, whereas 7 (30.4%) showed progressive reductions and 4 (17.4%) progressive increments throughout pregnancy. CONCLUSIONS Changes in CRP levels vary in a wide manner between subjects along pregnancy, even though median values are consistently elevated throughout pregnancy. Moreover, circulating levels of neutrophil-activation products are higher in normal human gestation.
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Affiliation(s)
- Luís Belo
- Department of Biochemistry, Faculty of Pharmacy, University of Porto, 4099-030 Porto, Portugal.
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