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Leksell J, Toft E, Rosman J, Eriksson JW, Fischier J, Lindholm-Olinder A, Rosenblad A, Nerpin E. Virtual clinic for young people with type 1 diabetes: a randomised wait-list controlled study. BMC Endocr Disord 2023; 23:255. [PMID: 37990315 PMCID: PMC10664359 DOI: 10.1186/s12902-023-01516-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Accepted: 11/17/2023] [Indexed: 11/23/2023] Open
Abstract
BACKGROUND The transition from paediatric to adult care for young adults with type 1 diabetes poses unique challenges. Virtual diabetes clinics using smartphone applications offer a promising approach to support self-management and enhance communication with healthcare providers. The primary objective of this study was to evaluate the effects of a virtual diabetes clinic on glycaemic control, treatment satisfaction, and quality of life among young adults diagnosed with type 1. METHODS 79 participants with type 1 diabetes aged 18-25 years were included in a prospective, single-centre, randomised, wait-list controlled trial. Participants were randomly assigned to either the intervention group or the wait-list control group. The intervention group received instant access to a virtual care platform called Vista Dialog, which facilitated real-time communication between patients and healthcare providers. Glycosylated haemoglobin (HbA1c) levels, time in range (TIR), time below range (TBR), diabetes treatment satisfaction, and quality of life were assessed at baseline and after 6 months. RESULTS Baseline characteristics were similar between the intervention and control groups, except for education level, where there was a skewed distribution between the groups (the intervention group had a lower education level). At the 6-month follow-up, there were no significant differences in HbA1c levels, TIR, TBR, or diabetes treatment satisfaction between the two groups. However, the intervention group demonstrated a significant decrease in the burden on physical health compared with the control group, indicating an improved quality of life. CONCLUSIONS The implementation of a virtual diabetes clinic using the Vista Dialog platform did not result in significant improvements in glycaemic control or treatment satisfaction compared with usual care. However, it did show potential benefits in terms of reducing the burden on physical health and improving quality of life in young adults with type 1 diabetes. Further research is needed to explore the long-term effects and optimal use of virtual clinics in diabetes management. TRIAL REGISTRATION ISRCTN number: 73,435,627 (registration date: 23/10/2019): https://doi.org/10.1186/ISRCTN73435627 . The performance and results of this trial adhere to the guidelines outlined in the CONSORT 2010 (Consolidated Standards of Reporting Trials) recommendations.
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Affiliation(s)
- Janeth Leksell
- Department of Medical Sciences, Clinical Diabetology and Metabolism, Uppsala University, Akademiska sjukhuset, Uppsala, SE-75185, Sweden.
| | - Eva Toft
- Department of Medicine, Karolinska Institutet, Huddinge, Stockholm, Sweden
- Diabetes Unit, Ersta Hospital, Stockholm, Sweden
| | - Jessica Rosman
- Department of Medical Sciences, Clinical Diabetology and Metabolism, Uppsala University, Akademiska sjukhuset, Uppsala, SE-75185, Sweden
| | - Jan W Eriksson
- Department of Medical Sciences, Clinical Diabetology and Metabolism, Uppsala University, Akademiska sjukhuset, Uppsala, SE-75185, Sweden
| | - Johan Fischier
- Diabetes Unit, Karolinska University hospital, Stockholm, Sweden
| | - Anna Lindholm-Olinder
- Department of Medical Sciences, Clinical Diabetology and Metabolism, Uppsala University, Akademiska sjukhuset, Uppsala, SE-75185, Sweden
- Department of Clinical Science and Education, Karolinska Institutet, Södersjukhuset, Stockholm, Sweden
| | - Andreas Rosenblad
- Department of Medical Sciences, Clinical Diabetology and Metabolism, Uppsala University, Akademiska sjukhuset, Uppsala, SE-75185, Sweden
- Department of Neurobiology, Care Sciences and Society, Division of Family Medicine and Primary Care, Karolinska Institutet, Stockholm, Sweden
- Department of Statistics, Uppsala University, Uppsala, Sweden
| | - Elisabet Nerpin
- School of Education, Health and Social Studies, Dalarna University, Falun, Sweden
- Department of Medical Sciences, Respiratory Medicine, Allergy and Sleep, Uppsala University, Uppsala, Sweden
- Department of Medical Sciences: Clinical Physiology, Uppsala University, Uppsala, Sweden
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Rydell A, Nerpin E, Zhou X, Lind L, Lindberg E, Theorell Haglöw J, Fall T, Janson C, Lisspers K, Elmståhl S, Zaigham S, Melander O, Nilsson PM, Ärnlöv J, Malinovschi A. Cardiovascular disease-linked plasma proteins are mainly associated with lung volume. ERJ Open Res 2023; 9:00321-2022. [PMID: 37009020 PMCID: PMC10052712 DOI: 10.1183/23120541.00321-2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 12/04/2022] [Indexed: 01/27/2023] Open
Abstract
BackgroundImpaired lung function is common and associated with increased risk of cardiovascular disease in epidemiological studies. Increased levels of several inflammatory and cardiovascular disease-related plasma proteins have been associated with impaired lung function. The aim was to study the association between plasma proteomics and forced expiratory volume in 1 s (FEV1), forced vital capacity (FVC) and FEV1/FVC ratio.MethodsWe used a discovery and replication approach in two community-based cohorts, EpiHealth and the Malmö Offspring Study (total n=2874), to cross-sectionally study 242 cardiovascular disease- and metabolism-linked proteins in relation to FEV1, FVC (both %predicted) and FEV1/FVC ratio. A false discovery rate of 5% was used as the significance threshold in the discovery cohort.ResultsPlasma fatty acid-binding protein 4, interleukin-1 receptor antagonist, interleukin-6 and leptin were negatively associated with FEV1and paraoxonase 3 was positively associated therewith. Fatty acid-binding protein 4, fibroblast growth factor 21, interleukin-1 receptor antagonist, interleukin-6 and leptin were negatively associated with FVC and agouti-related protein, insulin-like growth factor-binding protein 2, paraoxonase 3 and receptor for advanced glycation end products were positively associated therewith. No proteins were associated with FEV1/FVC ratio. A sensitivity analysis in EpiHealth revealed only minor changes after excluding individuals with known cardiovascular disease, diabetes, or obesity.ConclusionsFive proteins were associated with both FEV1and FVC. Four proteins associated with only FVC and none with FEV1/FVC ratio, suggesting associations mainly through lung volume, not airway obstruction. However, additional studies are needed to investigate underlying mechanisms for these findings.
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Krantz C, Accordini S, Alving K, Corsico AG, Demoly P, Ferreira DS, Forsberg B, Garcia-Aymerich J, Gislason T, Heinrich J, Jõgi R, Johannessen A, Leynaert B, Marcon A, Martínez-Moratalla Rovira J, Nerpin E, Nowak D, Olin AC, Olivieri M, Pereira-Vega A, Raherison-Semjen C, Real FG, Sigsgaard T, Squillacioti G, Janson C, Malinovschi A. Cross-sectional study on exhaled nitric oxide in relation to upper airway inflammatory disorders with regard to asthma and perennial sensitization. Clin Exp Allergy 2021; 52:297-311. [PMID: 34536262 DOI: 10.1111/cea.14019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 09/15/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Fractional exhaled nitric oxide (FeNO) is a well-known marker of type-2 inflammation. FeNO is elevated in asthma and allergic rhinitis, with IgE sensitization as a major determinant. OBJECTIVE We aimed to see whether there was an independent association between upper airway inflammatory disorders (UAID) and FeNO, after adjustment for asthma and sensitization, in a multi-centre population-based study. METHODS A total of 741 subjects with current asthma and 4155 non-asthmatic subjects participating in the second follow-up of the European Community Respiratory Health Survey (ECRHS III) underwent FeNO measurements. Sensitization status was based on measurement of IgE against airborne allergens; information on asthma, UAID and medication was collected through interview-led questionnaires. Independent associations between UAID and FeNO were assessed in adjusted multivariate regression models and test for interaction with perennial sensitization and asthma on the relation between UAID and FeNO were made. RESULTS UAID were associated with higher FeNO after adjusting for perennial sensitization, asthma and other confounders: with 4.4 (0.9-7.9) % higher FeNO in relation to current rhinitis and 4.8 (0.7-9.2) % higher FeNO in relation to rhinoconjunctivitis. A significant interaction with perennial sensitization was found in the relationship between current rhinitis and FeNO (p = .03) and between rhinoconjunctivitis and FeNO (p = .03). After stratification by asthma and perennial sensitization, the association between current rhinitis and FeNO remained in non-asthmatic subjects with perennial sensitization, with 12.1 (0.2-25.5) % higher FeNO in subjects with current rhinitis than in those without. CONCLUSIONS & CLINICAL RELEVANCE Current rhinitis and rhinoconjunctivitis was associated with higher FeNO, with an interaction with perennial sensitization. This further highlights the concept of united airway disease, with correlations between symptoms and inflammation in the upper and lower airways and that sensitization needs to be accounted for in the relation between FeNO and rhinitis.
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Affiliation(s)
- Christina Krantz
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - Simone Accordini
- Unit of Epidemiology and Medical Statistics, Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Kjell Alving
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - Angelo G Corsico
- Division of Respiratory Diseases, IRCCS Policlinico San Matteo Foundation, Pavia, Italy.,Department of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy
| | - Pascal Demoly
- Département de Pneumologie et Addictologie, Centre Hospitalier Universitaire de Montpellier, Montpellier, France.,Hôpital Arnaud de Villeneuve, IDESP, INSERM-Univ Montpellier, Montpellier, France
| | - Diogenes S Ferreira
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Vic., Australia.,Alergia e Imunologia, Complexo Hospital de Clinicas, Universidade Federal do Parana, Curitiba, Brazil
| | - Bertil Forsberg
- Department of Public Health and Clinical Medicine, Section of Sustainable Health, Umeå University, Umeå, Sweden
| | - Judith Garcia-Aymerich
- ISGlobal, Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain.,CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - Thorarinn Gislason
- Department of Sleep, Landspitali_the National University Hospital, Reykjavik, Iceland.,Faculty of Medicine, University of Iceland, Reykjavik, Iceland
| | - Joachim Heinrich
- Institute and Clinic for Occupational, Social and Environmental Medicine, LMU University Clinic, Comprehensive Pneumology Center (CPC), Munich, Germany.,German Center for Lung Research (DZL), Gießen, Germany.,Allergy and Lung Health Unit, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Vic., Australia
| | - Rain Jõgi
- Lung Clinic, Tartu University Hospital, Tartu, Estonia
| | - Ane Johannessen
- Centre for International Health, Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
| | - Bénédicte Leynaert
- Université Paris-Saclay, UVSQ, Univ. Paris-Sud, INSERM, Équipe d'Épidémiologie respiratoire intégrative, CESP, Villejuif, France
| | - Alessandro Marcon
- Unit of Epidemiology and Medical Statistics, Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Jesús Martínez-Moratalla Rovira
- Pneumology Service of the University Hospital of Albacete, Albacete, Spain.,Faculty of Medicine of Albacete, Castilla-La Mancha University, Albacete, Spain
| | - Elisabet Nerpin
- Department of Medical Sciences, Respiratory Medicine, Allergy and Sleep, Uppsala University, Uppsala, Sweden.,Department of Medical Sciences, Clinical Physiology, Uppsala University, Uppsala, Sweden.,Department of Medicine, Health and Social Studies, Dalarna University, Falun, Sweden
| | - Dennis Nowak
- Institute and Clinic for Occupational, Social and Environmental Medicine, LMU University Clinic, Comprehensive Pneumology Center (CPC), Munich, Germany.,German Center for Lung Research (DZL), Gießen, Germany
| | - Anna-Carin Olin
- Section of Occupational and Environmental Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Mario Olivieri
- Unit of Occupational Medicine, Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | | | - Chantal Raherison-Semjen
- Univ. Bordeaux, INSERM, Bordeaux, France.,Service des Maladies Respiratoires, Pole cardio-thoracique, CHU, Bordeaux, France
| | - Francisco Gómez Real
- Research Unit for Health Surveys (RUHS), Department of Clinical Sciences, University of Bergen, Bergen, Norway.,Department of Gynaecology and Obstetrics, Haukeland University Hospital, Bergen, Norway
| | - Torben Sigsgaard
- Department of Public Health, Danish Ramazzini Center, Aarhus University, Aarhus, Denmark
| | - Guilia Squillacioti
- Department of Public Health and Pediatrics, University of Turin, Turin, Italy
| | - Christer Janson
- Department of Medical Sciences, Respiratory Medicine, Allergy and Sleep, Uppsala University, Uppsala, Sweden
| | - Andrei Malinovschi
- Department of Medical Sciences, Clinical Physiology, Uppsala University, Uppsala, Sweden
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Nerpin E, Toft E, Fischier J, Lindholm-Olinder A, Leksell J. A virtual clinic for the management of diabetes-type 1: study protocol for a randomised wait-list controlled clinical trial. BMC Endocr Disord 2020; 20:137. [PMID: 32891126 PMCID: PMC7487575 DOI: 10.1186/s12902-020-00615-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 08/25/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Diabetes is a serious chronic disease. Medical treatment and good psychosocial support are needed to cope with acute and long-term effects of diabetes. Self-management is a large part of diabetes management, with healthcare providers playing a supportive role. Young adults with type 1 diabetes are of special interest as they tend to have higher mean glycosylated haemoglobin values than other patients with type 1 diabetes, and they often miss visits in traditional diabetes care. A well-designed virtual solution may improve a range of measures (e.g. glycaemic control and perceived health) and reduce hospitalisations. METHOD This randomised controlled trial with a control group using a wait list design will recruit 100 young adults from a hospital in Sweden. All participants will receive usual diabetes care besides the virtual clinic. The primary objective is to evaluate the effect of a virtual diabetes clinic on glycaemic control, treatment satisfaction and quality of life in young adults (aged 18-25 years) with type-1 diabetes. The secondary objective is to determine the effects of virtual care on the patient experience. DISCUSSION Virtual tools are becoming increasingly common in healthcare; however, it remains unclear if these tools improve diabetes self-management. The results of this study will build understanding of how healthcare providers can use a virtual clinic to improve diabetes self-management. TRIAL REGISTRATION Current controlled trials: ISRCTN, number: 73435627, registered 23 October 2019. https://doi.org/10.1186/ISRCTN73435627.
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Affiliation(s)
- Elisabet Nerpin
- Department of Medical Sciences, Respiratory Medicine, Allergy and Sleep, Uppsala University, Uppsala, Sweden.
- Department of Medical Sciences: Clinical Physiology, Uppsala University, Uppsala, Sweden.
- School of Education, Health and Social Studies, Dalarna University, SE-791 88, Falun, Sweden.
| | - Eva Toft
- Department of Medicine, Huddinge, Karolinska Institutet, Stockholm, Sweden
- Diabetes Unit, Ersta Hospital, Stockholm, Sweden
| | | | - Anna Lindholm-Olinder
- Department of Medical Sciences, Clinical Diabetology and Metabolism, Uppsala University, Uppsala, Sweden
- Department of Clinical Science and Education, Karolinska Institute, Södersjukhuset, Stockholm, Sweden
| | - Janeth Leksell
- School of Education, Health and Social Studies, Dalarna University, SE-791 88, Falun, Sweden
- Department of Medical Sciences, Clinical Diabetology and Metabolism, Uppsala University, Uppsala, Sweden
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Nerpin E, Olivieri M, Gislason T, Olin AC, Nielsen R, Johannessen A, Ferreira DS, Marcon A, Cazzoletti L, Accordini S, Pin I, Corsico A, Demoly P, Weyler J, Nowak D, Jõgi R, Forsberg B, Zock JP, Sigsgaard T, Heinric J, Bono R, Leynaert B, Jarvis D, Janson C, Malinovschi A. Determinants of fractional exhaled nitric oxide in healthy men and women from the European Community Respiratory Health Survey III. Clin Exp Allergy 2019; 49:969-979. [PMID: 30934155 DOI: 10.1111/cea.13394] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 03/18/2019] [Accepted: 03/28/2019] [Indexed: 12/28/2022]
Abstract
INTRODUCTION The fractional exhaled nitric oxide (FE NO) is a marker for type 2 inflammation used in diagnostics and management of asthma. In order to use FE NO as a reliable biomarker, it is important to investigate factors that influence FE NO in healthy individuals. Men have higher levels of FE NO than women, but it is unclear whether determinants of FE NO differ by sex. OBJECTIVE To identify determinants of FE NO in men and women without lung diseases. METHOD Fractional exhaled nitric oxide was validly measured in 3881 healthy subjects that had answered the main questionnaire of the European Community Respiratory Health Survey III without airways or lung disease. RESULTS Exhaled NO levels were 21.3% higher in men compared with women P < 0.001. Being in the upper age quartile (60.3-67.6 years), men had 19.2 ppb (95% CI: 18.3, 20.2) higher FE NO than subjects in the lowest age quartile (39.7-48.3 years) P = 0.02. Women in the two highest age quartiles (54.6-60.2 and 60.3-67.6 years) had 15.4 ppb (14.7, 16.2), P = 0.03 and 16.4 ppb (15.6, 17.1), P = <0.001 higher FE NO, compared with the lowest age quartile. Height was related to 8% higher FE NO level in men (P < 0.001) and 5% higher FE NO levels in women (P = 0.008). Men who smoked had 37% lower FE NO levels and women had 30% lower levels compared with never-smokers (P < 0.001 for both). Men and women sensitized to both grass and perennial allergens had higher FE NO levels compared with non-sensitized subjects 26% and 29%, P < 0.001 for both. CONCLUSION AND CLINICAL RELEVANCE Fractional exhaled nitric oxide levels were higher in men than women. Similar effects of current smoking, height, and IgE sensitization were found in both sexes. FE NO started increasing at lower age in women than in men, suggesting that interpretation of FE NO levels in adults aged over 50 years should take into account age and sex.
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Affiliation(s)
- Elisabet Nerpin
- Department of Medical Sciences, Respiratory Medicine, Allergy and Sleep, Uppsala University, Uppsala, Sweden.,Department of Medical Sciences: Clinical Physiology, Uppsala University, Uppsala, Sweden.,Department of Medicine, Health and Social Studies, Dalarna University, Falun, Sweden
| | - Mario Olivieri
- Unit of Occupational Medicine, University of Verona, Verona, Italy
| | - Thorainn Gislason
- Department of Sleep, Landspítali University Hospital, Reykjavík, Iceland.,Faculty of Medicine, University of Iceland, Reykjavík, Iceland
| | - Anna C Olin
- Section of Occupational and Environmental Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Rune Nielsen
- Department of Clinical Science, University of Bergen, Bergen, Norway.,Department of Thoracic Medicine, Haukeland University Hospital, Bergen, Norway
| | - Ane Johannessen
- Department of Global Public Health and Primary Care, Centre for International Health, University of Bergen, Bergen, Norway.,Department of Occupational Medicine, Haukeland University Hospital, Bergen, Norway
| | - Diogenes S Ferreira
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia.,Alergia e Imunologia, Complexo Hospital de Clinicas, Universidade Federal do Paraná, Curitiba, Brazil
| | - Alessandro Marcon
- Unit of Epidemiology and Medical Statistics, Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Lucia Cazzoletti
- Unit of Epidemiology and Medical Statistics, Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Simone Accordini
- Unit of Epidemiology and Medical Statistics, Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Isabelle Pin
- Department of Pediatrics, CHU Grenoble Alpes, Grenoble, France.,Institute for Advanced Biosciences, Inserm, Grenoble, France.,Université Grenoble Alpes, Grenoble, France
| | - Angelo Corsico
- Division of Respiratory Diseases, IRCCS Policlinico San Matteo Foundation, Pavia, Italy.,Department of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy
| | - Pascal Demoly
- Département de Pneumologie et Addictologie, Centre Hospitalier Universitaire de Montpellier, Hôpital Arnaud-de-Villeneuve, univ Montpellier, Montpellier, France.,Institut Pierre-Louis D'épidémiologie et de Santé Publique, Équipe EPAR, Sorbonne Université, INSERM, Paris, France
| | - Joost Weyler
- Epidemiology and Social Medicine, University of Antwerp StatUA Statistics Center, University of Antwerp, Antwerp, Belgium
| | - Dennis Nowak
- Hospital of the Ludwig-Maximilian University Munich, LMU Munich, Munich, Germany.,Comprehensive Pneumology Center Munich (CPC-M), German Center for Lung Research (DZL), Munich, Germany
| | - Rain Jõgi
- Lung Clinic, Tartu University Hospital, Tartu, Estonia
| | - Bertil Forsberg
- Department of Public Health and Clinical Medicine, Occupational and Environmental Medicine, Umeå University, Umeå, Sweden
| | - Jan P Zock
- ISGlobal, Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain.,CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | | | - Joachim Heinric
- Institute and Outpatient Clinic for Occupational, Social and Environmental Medicine, University Hospital Munich, Ludwig Maximilians University Munich, Munich, Germany.,Institute of Epidemiology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany.,Allergy and Lung Health Unit, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Victoria, Australia
| | - Roberto Bono
- Department of Public Health and Pediatrics, University of Turin, Turin, Italy
| | - Bénédicte Leynaert
- INSERM, UMR1152, Paris, France.,DHU FIRE, Université Paris-Diderot, Paris, France
| | - Deborah Jarvis
- National Heart and Lung Institute, Imperial College, London, UK
| | - Christer Janson
- Department of Medical Sciences, Respiratory Medicine, Allergy and Sleep, Uppsala University, Uppsala, Sweden
| | - Anderi Malinovschi
- Department of Medical Sciences: Clinical Physiology, Uppsala University, Uppsala, Sweden
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Nerpin E, João FA, Jacinto T, Alving K, Jansson C, Malinovschi A. Blood cell counts and C-reactive protein in relation to lung function in NHANES 2007-2010. Epidemiology 2018. [DOI: 10.1183/13993003.congress-2018.pa2279] [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: 11/05/2022]
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Nerpin E, Jarvis D, Olivieri M, Gíslason T, Olin AC, Janson C, Malinovschi A. Different relation between exhaled nitric oxide and lung function with regard to current smoking. Epidemiology 2018. [DOI: 10.1183/13993003.congress-2018.pa4488] [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: 11/05/2022]
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Nerpin E, Jacinto T, Fonseca JA, Alving K, Janson C, Malinovschi A. Systemic inflammatory markers in relation to lung function in NHANES. 2007-2010. Respir Med 2018; 142:94-100. [PMID: 30170809 DOI: 10.1016/j.rmed.2018.07.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 06/16/2018] [Accepted: 07/18/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND Low-grade systemic inflammation, mainly assessed by C-reactive protein (CRP), has been associated with impaired lung function. Few studies have studied if CRP, blood eosinophils, and blood neutrophils offer additive information in relation to lung function. OBJECTIVES To analyse associations between lung function and CRP, blood eosinophils, and blood neutrophils, with special regard to additive information of combining the inflammatory markers. METHODS Cross-sectional study on 7753 participants, 20-80 years of age, in the National Health and Nutrition Examination Survey. Gender-based tertiles for CRP, blood eosinophils, and blood neutrophils were analysed in relation to the following lung function parameters: forced expiratory volume in 1 s (FEV1% predicted), forced vital capacity (FVC % predicted), and FEV1/FVC ratio. RESULTS CRP, blood eosinophils, and blood neutrophils levels were inversely related to FEV1 and FVC. Only blood eosinophils and blood neutrophils were inversely related to FEV1/FVC ratio. Further, lower lung function was found with increased number of elevated inflammatory markers in the highest tertile (one, two or three vs. non elevated) for FEV1 (β-coeff., -2.20, -4.43, and -6.43, p < 0.001) and FVC (β-coeff., -1.70, -3.15 and -5.33, p < 0.001), respectively. CONCLUSIONS & CLINICAL RELEVANCE CRP, blood eosinophils, and blood neutrophils offer independent and additive information in relation to lower FEV1 and FVC in the general population. This indicates that a combination of biomarkers yields more information than the biomarkers assessed individually.
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Affiliation(s)
- Elisabet Nerpin
- Dept. of Medical Sciences: Respiratory, Allergy and Sleep Research, Uppsala University, Uppsala, Sweden; Dept. of Medicine, Health and Social Studies, Dalarna University, Falun, Sweden; Dept. of Medical Sciences: Clinical Physiology, Uppsala University, Uppsala, Sweden.
| | - Tiago Jacinto
- Center for Health Technology and Services Research, Faculty of Medicine of University of Porto, Porto, Portugal
| | - João A Fonseca
- Dept. of Biostatistics and Medical Informatics, Faculty of Medicine of the University of Porto, Porto, Portugal
| | - Kjell Alving
- Dept. of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - Christer Janson
- Dept. of Medical Sciences: Respiratory, Allergy and Sleep Research, Uppsala University, Uppsala, Sweden
| | - Andrei Malinovschi
- Dept. of Medical Sciences: Clinical Physiology, Uppsala University, Uppsala, Sweden
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Jobs E, Adamsson V, Larsson A, Jobs M, Nerpin E, Ingelsson E, Ärnlöv J, Risérus U. Influence of a prudent diet on circulating cathepsin S in humans. Nutr J 2014; 13:84. [PMID: 25128296 PMCID: PMC4155124 DOI: 10.1186/1475-2891-13-84] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Accepted: 08/11/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Increased circulating cathepsin S levels have been linked to increased risk of cardiometabolic diseases and cancer. However, whether cathepsin S is a modifiable risk factor is unclear. We aimed to investigate the effects of a prudent diet on plasma cathepsin S levels in healthy individuals. FINDINGS Explorative analyses of a randomized study were performed in 88 normal to slightly overweight and hyperlipidemic men and women (aged 25 to 65) that were randomly assigned to ad libitum prudent diet, i.e. healthy Nordic diet (ND) or a control group (habitual Western diet) for 6 weeks. Whereas all foods in the ND were provided, the control group was advised to consume their habitual diet throughout the study. The ND was in line with dietary recommendations, e.g. low in saturated fats, sugars and salt, but high in plant-based foods rich in fibre and unsaturated fats.The ND significantly decreased cathepsin S levels (from 20.1 (+/-4.0 SD) to 19.7 μg/L (+/-4.3 SD)) compared with control group (from 18.2 (+/-2.9 SD) to 19.1 μg/L (+/-3.8 SD)). This difference remained after adjusting for sex and change in insulin sensitivity (P = 0.03), and near significant after adjusting for baseline cathepsin S levels (P = 0.06), but not for change in weight or LDL-C. Changes in cathepsin S levels were directly correlated with change in LDL-C. CONCLUSIONS Compared with a habitual control diet, a provided ad libitum healthy Nordic diet decreased cathepsin S levels in healthy individuals, possibly mediated by weight loss or lowered LDL-C. These differences between groups in cathepsin S were however not robust and therefore need further investigation.
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Affiliation(s)
| | | | | | | | | | | | | | - Ulf Risérus
- Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism, Uppsala University, 75185 Uppsala Science Park, Sweden.
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Nerpin E, Ingelsson E, Risérus U, Sundström J, Andren B, Jobs E, Larsson A, Lars L, Ärnlöv J. The association between glomerular filtration rate and left ventricular function in two independent community-based cohorts of elderly. Nephrol Dial Transplant 2014; 29:2069-74. [PMID: 24916339 PMCID: PMC4209878 DOI: 10.1093/ndt/gfu199] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Background The cardiorenal syndrome, the detrimental bi-directional interplay between symptomatic heart failure and chronic kidney disease, is a major clinical challenge. Nonetheless, it is unknown if this interplay begins already at an asymptomatic stage. Therefore we investigated whether the glomerular filtration rate (GFR) is associated with left ventricular function in participants free from clinical heart failure and with a left ventricular ejection fraction (LVEF) >40% and with pre-specified sub-group analyses in individuals with a GFR >60 mL/min/m2. Methods Two independent community-based cohorts were used; the Prospective Investigation of the Vasculature in Uppsala Seniors (PIVUS; n = 911; 50% women; mean age: 70 years) and the Uppsala Longitudinal Study of Adult Men (ULSAM; n = 538; mean age: 71 years). We investigated cross-sectional association between cystatin C-based GFR (estimated glomerular function [eGFR]) and systolic (LVEF), diastolic- (isovolumic relaxation time [IVRT]) and global left ventricular function (myocardial performance index [MPI]) determined by echocardiography. Results In both PIVUS and ULSAM, higher eGFR was significantly associated with higher LVEF (P = 0.004 [PIVUS] and P = 0.005 [ULSAM]). In PIVUS, higher eGFR was significantly associated with lower IVRT (P = 0.001) and MPI (P = 0.006), in age- and sex-adjusted models. After further adjustment for cardiovascular risk factors, the association between higher eGFR and higher LVEF was still statistically significant (P = 0.008 [PIVUS] and P = 0.02 [ULSAM]). In PIVUS, the age- and sex-adjusted association between eGFR and left ventricular function was similar in participants with eGFR >60 mL/min/m2. Conclusions Our data suggest that the interplay between kidney and heart function begins prior to the development of symptomatic heart failure and kidney disease.
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Affiliation(s)
- Elisabet Nerpin
- Department of Public Health and Caring Sciences/Geriatrics, Uppsala Science Park, Uppsala, Sweden Department of Health and Social Sciences, Högskolan Dalarna, Falun, Sweden
| | - Erik Ingelsson
- Department of Medical Sciences, Molecular Epidemiology and Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Ulf Risérus
- Department of Public Health and Caring Sciences/Section of Clinical Nutrition and Metabolism, Uppsala Science Park, Uppsala, Sweden
| | - Johan Sundström
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Bertil Andren
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Elisabeth Jobs
- Department of Public Health and Caring Sciences/Geriatrics, Uppsala Science Park, Uppsala, Sweden Department of Health and Social Sciences, Högskolan Dalarna, Falun, Sweden
| | - Anders Larsson
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Lind Lars
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Johan Ärnlöv
- Department of Public Health and Caring Sciences/Geriatrics, Uppsala Science Park, Uppsala, Sweden Department of Health and Social Sciences, Högskolan Dalarna, Falun, Sweden
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Jobs E, Risérus U, Ingelsson E, Sundström J, Jobs M, Nerpin E, Iggman D, Basu S, Larsson A, Lind L, Ärnlöv J. Serum cathepsin S is associated with decreased insulin sensitivity and the development of type 2 diabetes in a community-based cohort of elderly men. Diabetes Care 2013; 36:163-5. [PMID: 22923671 PMCID: PMC3526243 DOI: 10.2337/dc12-0494] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE To investigate associations between serum cathepsin S, impaired insulin sensitivity, defective insulin secretion, and diabetes risk in a community-based sample of elderly men without diabetes. RESEARCH DESIGN AND METHODS Serum cathepsin S, insulin sensitivity (euglycemic-hyperinsulinemic clamp), and insulin secretion (early insulin response during an oral glucose tolerance test) were measured in 905 participants of the Uppsala Longitudinal Study of Adult Men (mean age, 71 years). Thirty participants developed diabetes during 6 years of follow-up. RESULTS After adjustment for age, anthropometric variables, and inflammatory markers, higher cathepsin S was associated with decreased insulin sensitivity (regression coefficient per SD increase -0.09 [95% CI -0.14 to -0.04], P = 0.001), but no association with early insulin response was found. Moreover, higher cathepsin S was associated with a higher risk for developing diabetes (odds ratio per SD increase 1.48 [1.08-2.01], P = 0.01). CONCLUSIONS Cathepsin S activity appears to be involved in the early dysregulation of glucose and insulin metabolism.
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Affiliation(s)
- Elisabeth Jobs
- Department of Public Health and Caring Sciences, Section of Geriatrics, Uppsala University, Uppsala, Sweden
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Nerpin E, Helmersson-Karlqvist J, Risérus U, Sundström J, Larsson A, Jobs E, Basu S, Ingelsson E, Arnlöv J. Inflammation, oxidative stress, glomerular filtration rate, and albuminuria in elderly men: a cross-sectional study. BMC Res Notes 2012; 5:537. [PMID: 23016573 PMCID: PMC3527356 DOI: 10.1186/1756-0500-5-537] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2012] [Accepted: 09/22/2012] [Indexed: 01/02/2023] Open
Abstract
Background The role of inflammation and oxidative stress in mild renal impairment in the elderly is not well studied. Accordingly, we aimed at investigating the associations between estimated glomerular filtration rate (eGFR), albumin/creatinine ratio (ACR), and markers of different inflammatory pathways and oxidative stress in a community based cohort of elderly men. Findings Cystatin C-based GFR, ACR, and biomarkers of cytokine-mediated inflammation (interleukin-6, high-sensitivity C-reactive protein[CRP], serum amyloid A[SAA]), cyclooxygenase-mediated inflammation (urinary prostaglandin F2α [PGF2α]), and oxidative stress (urinary F2 isoprostanes) were assessed in the Uppsala Longitudinal Study of Adult Men(n = 647, mean age 77 years). Results In linear regression models adjusting for age, BMI, smoking, blood pressure, LDL-cholesterol, HDL-cholesterol, triglycerides, and treatment with statins, ACE-inhibitors, ASA, and anti-inflammatory agents, eGFR was inversely associated with CRP, interleukin-6, and SAA (β-coefficient −0.13 to −0.19, p < 0.001 for all), and positively associated with urinary F2-isoprostanes (β-coefficient 0.09, p = 0.02). In line with this, ACR was positively associated with CRP, interleukin-6, and SAA (β- coefficient 0.09-0.12, p < 0.02 for all), and negatively associated with urinary F2-isoprostanes (β-coefficient −0.12, p = 0.002). The associations were similar but with lower regression coefficients in a sub-sample with normal eGFR (>60 ml/min/1.73 m2, n = 514), with the exception that F2-isoprostane and SAA were no longer associated with eGFR. Conclusion Our data indicate that cytokine-mediated inflammation is involved in the early stages of impaired kidney function in the elderly, but that cyclooxygenase-mediated inflammation does not play a role at this stage. The unexpected association between higher eGFR/lower albuminuria and increased F2-isoprostanes in urine merits further studies.
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Affiliation(s)
- Elisabet Nerpin
- Department of Public Health and Caring Sciences/Geriatrics, Uppsala University, SE- 751 85, Uppsala, Sweden.
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Nerpin E, Ingelsson E, Risérus U, Helmersson-Karlqvist J, Sundström J, Jobs E, Larsson A, Lind L, Ärnlöv J. Association between glomerular filtration rate and endothelial function in an elderly community cohort. Atherosclerosis 2012; 224:242-6. [PMID: 22841608 DOI: 10.1016/j.atherosclerosis.2012.07.008] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2012] [Revised: 06/05/2012] [Accepted: 07/01/2012] [Indexed: 11/19/2022]
Abstract
BACKGROUND Endothelial dysfunction is prevalent among individuals with chronic kidney disease. However, the association between glomerular filtration rate and endothelial function in the community is unclear and needs to be investigated in the general population. METHODS In the community-based Prospective Investigation of the Vasculature of Uppsala Seniors study (PIVUS, n = 952, mean age 70, women 49.3%), we investigated cross-sectional associations between estimated cystatin C-based glomerular filtration rate (eGFR), and 3 measures representing different aspects of endothelial function (endothelial-dependent vasodilation [EDV], endothelial independent vasodilatation [EIDV], and flow-mediated dilatation [FMD]). We also performed pre-specified sub-group analyses in participants with normal eGFR (>60 ml/min/1.73 m(2)). RESULTS In the whole cohort, 10 ml/min/1.73 m(2) higher eGFR was associated with 3% higher EDV (p = 0.001) and 2% higher EIDV (p = 0.007), adjusted for age and sex. The associations were attenuated and no longer statistically significant after adjusting for established cardiovascular risk factors. In participants with eGFR >60 ml/min/1.73 m(2), 10 ml higher eGFR was associated with 2% higher EDV (p = 0.04) after adjusting for sex and age. eGFR was not associated to FMD in any model or sub-sample. CONCLUSION This community-based study suggests that eGFR is associated with endothelial function also in persons with normal kidney function, but that this association is largely explained by confounding by established cardiovascular risk factors. Thus, our data do not support the notion of a direct causal interplay between renal and vascular function prior to the development of CKD.
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Affiliation(s)
- Elisabet Nerpin
- Department of Public Health and Caring Sciences/Geriatrics, Uppsala Science Park, SE-751 85 Uppsala, Sweden.
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Nerpin E, Helmersson-Karlqvist J, Riserus U, Sundström J, Larsson A, Jobs E, Basu S, Ingelsson E, Ärnlöv J. Inflammation, oxidative stress, glomerular filtration rate, and albuminuria in elderly men: a cross-sectional study. BMC Res Notes 2012. [DOI: 10.1186/1756-0500-5-2101791285670480] [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: 11/10/2022] Open
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Jobs E, Ingelsson E, Risérus U, Nerpin E, Jobs M, Sundström J, Basu S, Larsson A, Lind L, Ärnlöv J. Association between serum cathepsin S and mortality in older adults. JAMA 2011; 306:1113-21. [PMID: 21878432 DOI: 10.1001/jama.2011.1246] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [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: 11/14/2022]
Abstract
CONTEXT Experimental data suggest that cathepsin S, a cysteine protease, is involved in the complex pathways leading to cardiovascular disease and cancer. However, prospective data concerning a potential association between circulating cathepsin S levels and mortality are lacking. OBJECTIVE To investigate associations between circulating cathepsin S levels and mortality in 2 independent cohorts of elderly men and women. DESIGN, SETTING, AND PARTICIPANTS Prospective study using 2 community-based cohorts, the Uppsala Longitudinal Study of Adult Men (ULSAM; n = 1009; mean age: 71 years; baseline period: 1991-1995; median follow-up: 12.6 years; end of follow-up: 2006) and the Prospective Investigation of the Vasculature in Uppsala Seniors (PIVUS; n = 987; 50% women; mean age: 70 years; baseline period: 2001-2004; median follow-up: 7.9 years; end of follow-up: 2010). Serum samples were used to measure cathepsin S. MAIN OUTCOME MEASURE Total mortality. RESULTS During follow-up, 413 participants died in the ULSAM cohort (incidence rate: 3.59/100 person-years at risk) and 100 participants died in the PIVUS cohort (incidence rate: 1.32/100 person-years at risk). In multivariable Cox regression models adjusted for age, systolic blood pressure, diabetes, smoking status, body mass index, total cholesterol, high-density lipoprotein cholesterol, antihypertensive treatment, lipid-lowering treatment, and history of cardiovascular disease, higher serum cathepsin S was associated with an increased risk for mortality (ULSAM cohort: hazard ratio [HR] for 1-unit increase of cathepsin S, 1.04 [95% CI, 1.01-1.06], P = .009; PIVUS cohort: HR for 1-unit increase of cathepsin S, 1.03 [95% CI, 1.00-1.07], P = .04). In the ULSAM cohort, serum cathepsin S also was associated with cardiovascular mortality (131 deaths; HR for quintile 5 vs quintiles 1-4, 1.62 [95% CI, 1.11-2.37]; P = .01) and cancer mortality (148 deaths; HR for 1-unit increase of cathepsin S, 1.05 [95% CI, 1.01-1.10]; P = .01). CONCLUSIONS Among elderly individuals in 2 independent cohorts, higher serum cathepsin S levels were associated with increased mortality risk. Additional research is needed to delineate the role of cathepsin S and whether its measurement might have clinical utility.
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Affiliation(s)
- Elisabeth Jobs
- Department of Public Health and Caring Sciences, Section of Geriatrics, Uppsala University, Uppsala, Sweden
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Nerpin E, Ingelsson E, Riserus U, Sundstrom J, Larsson A, Jobs E, Jobs M, Hallan S, Zethelius B, Berglund L, Basu S, Arnlov J. The combined contribution of albuminuria and glomerular filtration rate to the prediction of cardiovascular mortality in elderly men. Nephrol Dial Transplant 2011; 26:2820-7. [DOI: 10.1093/ndt/gfq848] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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Jobs E, Risérus U, Ingelsson E, Helmersson J, Nerpin E, Jobs M, Sundström J, Lind L, Larsson A, Basu S, Arnlöv J. Serum cathepsin S is associated with serum C-reactive protein and interleukin-6 independently of obesity in elderly men. J Clin Endocrinol Metab 2010; 95:4460-4. [PMID: 20610597 DOI: 10.1210/jc.2010-0328] [Citation(s) in RCA: 24] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
OBJECTIVE Cathepsin S has been suggested provide a mechanistic link between obesity and atherosclerosis, possibly mediated via adipose tissue-derived inflammation. Previous data have shown an association between circulating cathepsin S and inflammatory markers in the obese, but to date, community-based reports are lacking. Accordingly, we aimed to investigate the association between serum levels of cathepsin S and markers of cytokine-mediated inflammation in a community-based sample, with prespecified subgroup analyses in nonobese participants. METHODS Serum cathepsin S, C-reactive protein (CRP), and IL-6 were measured in a community-based cohort of elderly men (Uppsala Longitudinal Study of Adult Men; mean age 71 years, n = 991). CRP and IL-6 were also measured at a reexamination after 7 yr. RESULTS After adjustment for age, body mass index, fasting plasma glucose, diabetes treatment, systolic blood pressure, diastolic blood pressure, hypertension treatment, serum cholesterol, serum high-density lipoprotein cholesterol, prior cardiovascular disease, smoking, and leisure time physical activity, higher cathepsin S was associated with higher CRP (regression coefficient for 1 sd increase, 0.13; 95% confidence interval 0.07-0.19; P < 0.001) and higher serum IL-6 (regression coefficient for 1 sd increase, 0.08; 95% confidence interval 0.01-0.14; P = 0.02). These associations remained similar in normal-weight participants (body mass index <25 kg/m(2), n = 375). In longitudinal analyses, higher cathepsin S at baseline was associated with higher serum CRP and IL-6 after 7 yr. CONCLUSIONS These results provide additional evidence for the interplay between cathepsin S and inflammatory activity and suggest that this association is present also in normal-weight individuals in the community.
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Affiliation(s)
- E Jobs
- Department of Public Health and Caring Sciences/Geriatrics, Uppsala University, SE-75185 Uppsala Sweden
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Nerpin E, Risérus U, Ingelsson E, Sundström J, Jobs M, Larsson A, Basu S, Arnlöv J. Insulin sensitivity measured with euglycemic clamp is independently associated with glomerular filtration rate in a community-based cohort. Diabetes Care 2008; 31:1550-5. [PMID: 18509205 PMCID: PMC2494665 DOI: 10.2337/dc08-0369] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE To investigate the association between insulin sensitivity and glomerular filtration rate (GFR) in the community, with prespecified subgroup analyses in normoglycemic individuals with normal GFR. RESEARCH DESIGN AND METHODS We investigated the cross-sectional association between insulin sensitivity (M/I, assessed using euglycemic clamp) and cystatin C-based GFR in a community-based cohort of elderly men (Uppsala Longitudinal Study of Adult Men [ULSAM], n = 1,070). We also investigated whether insulin sensitivity predicted the incidence of renal dysfunction at a follow-up examination after 7 years. RESULTS Insulin sensitivity was directly related to GFR (multivariable-adjusted regression coefficient for 1-unit higher M/I 1.19 [95% CI 0.69-1.68]; P < 0.001) after adjusting for age, glucometabolic variables (fasting plasma glucose, fasting plasma insulin, and 2-h glucose after an oral glucose tolerance test), cardiovascular risk factors (hypertension, dyslipidemia, and smoking), and lifestyle factors (BMI, physical activity, and consumption of tea, coffee, and alcohol). The positive multivariable-adjusted association between insulin sensitivity and GFR also remained statistically significant in participants with normal fasting plasma glucose, normal glucose tolerance, and normal GFR (n = 443; P < 0.02). In longitudinal analyses, higher insulin sensitivity at baseline was associated with lower risk of impaired renal function (GFR <50 ml/min per 1.73 m(2)) during follow-up independently of glucometabolic variables (multivariable-adjusted odds ratio for 1-unit higher of M/I 0.58 [95% CI 0.40-0.84]; P < 0.004). CONCLUSIONS Our data suggest that impaired insulin sensitivity may be involved in the development of renal dysfunction at an early stage, before the onset of diabetes or prediabetic glucose elevations. Further studies are needed in order to establish causality.
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Affiliation(s)
- Elisabet Nerpin
- Department of Health and Social Sciences, Högskolan Dalarna, Falun, Sweden
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