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Kocaaga E, Inal-Ince D, Dogru D, Alikasifoglu A, Ademhan-Tural D, Bozdemir-Ozel C, Calik-Kutukcu E, Saglam M, Vardar-Yagli N, Emiralioglu N. Exercise performance in children and adolescents with cystic fibrosis with and without abnormal glucose tolerance: a single center cross-sectional study. Physiother Theory Pract 2024; 40:230-240. [PMID: 36043898 DOI: 10.1080/09593985.2022.2116300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 08/16/2022] [Indexed: 10/14/2022]
Abstract
BACKGROUND Abnormal glucose tolerance (AGT) in cystic fibrosis (CF) affects lung function and clinical parameters, including aerobic fitness. However, its effects on physical activity level (PAL), anaerobic power (AP), and muscle strength (MS) in children and adolescents are unknown. PURPOSE To investigate aerobic fitness, PAL, AP, and MS in pediatric patients with mild-to-moderate CF and AGT. METHODS The study included children and adolescents with CF aged 10-18 years. Participants underwent a pulmonary function test, quadriceps, and handgrip MS measurement, vertical jump test to assess AP, and six-minute walk test (6MWT) to assess aerobic fitness. Bouchard's Three-Day Physical Activity record was used to determine PAL. RESULTS Height z-score (p = .006), 6MWT (p = .024), handgrip (p = .028), quadriceps MS (p = .044), and AP (p = .036) were significantly lower in AGT (n = 21) than normal glucose tolerance (NGT) (n = 19). In the AGT group, glycosylated hemoglobin (HbA1c) was significantly associated with forced expiratory volume in one second (FEV1) (p = .046). 6MWT distance (6MWD) was associated with height (p = .008), FEV1 (p = .001), forced vital capacity (FVC) (p = .001), forced expiratory flow from 25% to 75% (FEF25-75%) (p = .030), handgrip MS (p = .012), and PAL (p = .034). After adjusting for height and FEV1, the groups had similar 6MWD, MS, and AP (p > .05); also, insulin was associated with MS and AP but not with 6MWT or quadriceps MS. CONCLUSION Measures of aerobic fitness, MS, and AP are lower in AGT, but after adjusting for height and FEV1, aerobic fitness, MS, and AP do not show substantial differences. Insulin sensitivity and resistance are associated with MS and AP.
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Affiliation(s)
- Elif Kocaaga
- Faculty of Physical Therapy and Rehabilitation, Department of Cardiorespiratory Physiotherapy and Rehabilitation, Sihhiye Campus, Hacettepe University, Samanpazari, Ankara, Turkey
| | - Deniz Inal-Ince
- Faculty of Physical Therapy and Rehabilitation, Department of Cardiorespiratory Physiotherapy and Rehabilitation, Sihhiye Campus, Hacettepe University, Samanpazari, Ankara, Turkey
| | - Deniz Dogru
- Faculty of Medicine, Department of Pediatric Chest Medicine, Sihhiye Campus, Hacettepe University, Ankara, Turkey
| | - Ayfer Alikasifoglu
- Faculty of Medicine, Department of Pediatric Endocrinology, Sihhiye Campus, Hacettepe University, Ankara, Turkey
| | - Dilber Ademhan-Tural
- Faculty of Medicine, Department of Pediatric Chest Medicine, Sihhiye Campus, Hacettepe University, Ankara, Turkey
| | - Cemile Bozdemir-Ozel
- Faculty of Health Science, Department of Physiotherapy and Rehabilitation, Meselik Campus, Eskisehir Osman Gazi University, Odunpazarı, Eskisehir, Turkey
| | - Ebru Calik-Kutukcu
- Faculty of Physical Therapy and Rehabilitation, Department of Cardiorespiratory Physiotherapy and Rehabilitation, Sihhiye Campus, Hacettepe University, Samanpazari, Ankara, Turkey
| | - Melda Saglam
- Faculty of Physical Therapy and Rehabilitation, Department of Cardiorespiratory Physiotherapy and Rehabilitation, Sihhiye Campus, Hacettepe University, Samanpazari, Ankara, Turkey
| | - Naciye Vardar-Yagli
- Faculty of Physical Therapy and Rehabilitation, Department of Cardiorespiratory Physiotherapy and Rehabilitation, Sihhiye Campus, Hacettepe University, Samanpazari, Ankara, Turkey
| | - Nagehan Emiralioglu
- Faculty of Medicine, Department of Pediatric Chest Medicine, Sihhiye Campus, Hacettepe University, Ankara, Turkey
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2
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Radtke T, Kriemler S, Stein L, Karila C, Urquhart DS, Orenstein DM, Lands LC, Schindler C, Eber E, Haile SR, Hebestreit H. Cystic fibrosis related diabetes is not associated with maximal aerobic exercise capacity in cystic fibrosis: a cross-sectional analysis of an international multicenter trial. J Cyst Fibros 2023; 22:31-38. [PMID: 35803884 DOI: 10.1016/j.jcf.2022.06.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 06/24/2022] [Accepted: 06/27/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Previous studies have reported differences in aerobic exercise capacity, expressed as peak oxygen uptake (VO2peak), between people with and without cystic fibrosis (CF) related diabetes (CFRD). However, none of the studies controlled for the potential influence of physical activity on VO2peak. We investigated associations between CFRD and VO2peak following rigorous control for confounders including objectively measured physical activity. METHODS Baseline data from the international multicenter trial ACTIVATE-CF with participants ≥12 years performing up to 4 h per week of vigorous physical activity were used for this project. Multivariable models were computed to study associations between CFRD and VO2peak (mL.min-1) adjusting for a set of pre-defined covariates: age, sex, weight, forced expiratory volume in 1 s (FEV1), breathing reserve index, Pseudomonas aeruginosa infection, and physical activity (aerobic step counts from pedometry). Variables were selected based on their potential confounding effect on the association between VO2peak and CFRD. RESULTS Among 117 randomized individuals, 103 (52% female) had a maximal exercise test and were included in the analysis. Participants with (n = 19) and without (n = 84) CFRD did not differ in FEV1, physical activity, nutritional status, and other clinical characteristics. There were also no differences in VO2peak (mL.min-1 or mL.kg-1.min-1 or% predicted). In the final multivariable model, all pre-defined covariates were significant predictors of VO2peak (mL.min-1), however CFRD [coefficient 82.1, 95% CI -69.5 to 233.8, p = 0.28] was not. CONCLUSIONS This study suggests no meaningful differences in VO2peak between people with and without CFRD given comparable levels of physical activity.
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Affiliation(s)
- Thomas Radtke
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland.
| | - Susi Kriemler
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | - Lothar Stein
- Hannover Medical School, Institute of Sports Medicine, Hannover, Germany
| | - Chantal Karila
- Service de pneumologie et allergologie pédiatriques - Hôpital Necker Enfants malades - APHP - Université Paris Descartes, Paris, France
| | - Don S Urquhart
- Department of Paediatric Respiratory and Sleep Medicine, Royal Hospital for Children and Young People, Edinburgh, UK
| | - David M Orenstein
- Department of Pediatrics, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, USA
| | - Larry C Lands
- Montreal Children's Hospital - McGill University Health, Montreal, QC, Canada
| | - Christian Schindler
- Swiss Tropical and Public Health Institute, University of Basel, Basel, Switzerland; Faculty of Medicine, University of Basel, Basel, Switzerland
| | - Ernst Eber
- Department of Pediatrics and Adolescent Medicine, Medical University of Graz, Graz, Austria
| | - Sarah R Haile
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
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3
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Gambazza S, Carta F, Ambrogi F, Bassotti G, Brivio A, Russo M, Colombo C. Limitations of the dichotomized 6-minute walk distance when computing lung allocation score for cystic fibrosis: a 16-year retrospective cohort study. Disabil Rehabil 2022:1-7. [PMID: 35830371 DOI: 10.1080/09638288.2022.2099588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
PURPOSE The 2010 Lung Allocation Score (LAS) version considers the estimated survival benefit offered by lung transplantation (LTx) and uses 6-minute Walk Test (6MWT) distance as a dichotomous covariate of whether an individual can walk more than 150 ft or 45.7 m in 6 min. This study aimed to provide evidence that 6MWT gives no clinically meaningful information to be used in the current LAS for candidates to LTx with cystic fibrosis (CF). MATERIALS AND METHODS We collected data from 6MWTs performed since 2003 at our CF centre. A joint model was fitted to describe the effect of changes in walked distance on the hazard of LTx or death. RESULTS Up to 2019, 552 6MWTs were performed on 163 individuals with CF. None of the individuals included walked for less than 45.7 m during the 6MWT. Based on the joint modelling, the association of walked distance with the hazard ratio (HR) of LTx or death was significant (HR 0.99, 95% Credible Interval [CI]: 0.99 to 1.00). CONCLUSIONS When adopted dichotomously for LAS calculation, walked distance does not add any useful information about exercise capacity. Longitudinal trajectories of walked distance may provide complementary information about prognosis in individuals with CF.Implications for rehabilitationDichotomized walked distance does not contribute to lung allocation score in candidates to lung transplantation with cystic fibrosisChanges in the longitudinal trajectory of walked distance can be clinically meaningful for prognostication.Sensitive outcomes to be incorporated in the lung allocation scoring system for individuals with CF are yet needed to catch rapid falls in functional capacity.
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Affiliation(s)
- Simone Gambazza
- Healthcare Professions Department, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milano, Italy.,Laboratory of Medical Statistics and Biometry, 'Giulio A. Maccacaro', Department of Clinical Sciences and Community Health, University of Milan, Milano, Italy
| | - Federica Carta
- Healthcare Professions Department, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milano, Italy.,Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Cystic Fibrosis Centre, Milano, Italy
| | - Federico Ambrogi
- Laboratory of Medical Statistics and Biometry, 'Giulio A. Maccacaro', Department of Clinical Sciences and Community Health, University of Milan, Milano, Italy
| | - Giacomo Bassotti
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Cystic Fibrosis Centre, Milano, Italy
| | - Anna Brivio
- Healthcare Professions Department, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milano, Italy.,Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Cystic Fibrosis Centre, Milano, Italy
| | - Maria Russo
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Cystic Fibrosis Centre, Milano, Italy
| | - Carla Colombo
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Cystic Fibrosis Centre, Milano, Italy.,Department of Pathophysiology and Transplantation, University of Milan, Milano, Italy
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4
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Tomlinson OW, Stoate ALE, Dobson L, Williams CA. The Effect of Dysglycaemia on Changes in Pulmonary and Aerobic Function in Cystic Fibrosis. Front Physiol 2022; 13:834664. [PMID: 35431976 PMCID: PMC9005891 DOI: 10.3389/fphys.2022.834664] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 02/21/2022] [Indexed: 11/17/2022] Open
Abstract
Cross-sectional studies have reported lower pulmonary and aerobic function during exercise in people with cystic fibrosis-related diabetes (CFRD) compared to non-CFRD counterparts. However, this association has yet to be longitudinally investigated. Therefore, this study examines these differences over time between people with cystic fibrosis (CF) of differing glycaemic status. Annual review data, including cardiopulmonary exercise tests and pulmonary function tests, were retrospectively analysed at baseline (T0, n = 82) and at a one-year follow-up (T1, n = 54). Data was analysed in three groups: normal glucose tolerance (NGT), impaired glucose tolerance (IGT), and CFRD. Further analyses were undertaken, with a dichotomous split of NGT and a combined IGT/CFRD group. At baseline, a significant reduction in the majority of variables, including forced expiratory volume in one second (FEV1) and maximal oxygen uptake (VO2max), was observed in the CFRD (n = 19) group compared to NGT (n = 58). At follow-up, no significant differences were observed, and no interaction effect between CFRD status and time was identified. FEV1 and VO2max presented with varying directions and magnitudes of change within patients. In summary, patients with CFRD have a reduced aerobic and pulmonary function compared to non-CFRD counterparts, although such changes disappeared at follow up. Varying responses for FEV1 and VO2max highlight the need to consider both variables as independent markers of function in CF.
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Affiliation(s)
- Owen W. Tomlinson
- Children’s Health and Exercise Research Centre, Sport and Health Sciences, University of Exeter, Exeter, United Kingdom
- Royal Devon and Exeter NHS Foundation Trust Hospital, Exeter, United Kingdom
| | - Anna L. E. Stoate
- Children’s Health and Exercise Research Centre, Sport and Health Sciences, University of Exeter, Exeter, United Kingdom
| | - Lee Dobson
- Royal Devon and Exeter NHS Foundation Trust Hospital, Exeter, United Kingdom
| | - Craig A. Williams
- Children’s Health and Exercise Research Centre, Sport and Health Sciences, University of Exeter, Exeter, United Kingdom
- Royal Devon and Exeter NHS Foundation Trust Hospital, Exeter, United Kingdom
- *Correspondence: Craig A. Williams,
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5
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Burghard M, Takken T, Nap-van der Vlist MM, Nijhof SL, van der Ent CK, Heijerman HGM, Hulzebos HJE. Physiological predictors of cardiorespiratory fitness in children and adolescents with cystic fibrosis without ventilatory limitation. Ther Adv Respir Dis 2022; 16:17534666211070143. [PMID: 35012387 PMCID: PMC8755930 DOI: 10.1177/17534666211070143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Objectives: [1] To investigate the cardiorespiratory fitness (CRF) levels in children and
adolescents with cystic fibrosis (CF) with no ventilatory limitation
(ventilatory reserve ⩾ 15%) during exercise, and [2] to assess which
physiological factors are related to CRF. Methods: A cross-sectional study design was used in 8- to 18-year-old children and
adolescents with CF. Cardiopulmonary exercise testing was used to determine
peak oxygen uptake normalized to body weight as a measure of CRF. Patients
were defined as having ‘low CRF’ when CRF was less than 82%predicted.
Physiological predictors used in this study were body mass index z-score,
P. Aeruginosa lung infection, impaired glucose
tolerance (IGT) including CF-related diabetes, CF-related liver disease,
sweat chloride concentration, and self-reported physical activity. Backward
likelihood ratio (LR) logistic regression analysis was used. Results: Sixty children and adolescents (51.7% boys) with a median age of 15.3 years
(25th–75th percentile: 12.9–17.0 years) and a mean percentage predicted
forced expiratory volume in 1 second of 88.5% (±16.9) participated. Mean
percentage predicted CRF (ppVO2peak/kg) was 81.4% (±12.4, range:
51%–105%). Thirty-three patients (55.0%) were classified as having ‘low
CRF’. The final model that best predicted low CRF included IGT
(p = 0.085; Exp(B) = 6.770) and P.
Aeruginosa lung infection (p = 0.095; Exp(B) = 3.945). This
model was able to explain between 26.7% and 35.6% of variance. Conclusions: CRF is reduced in over half of children and adolescents with CF with normal
ventilatory reserve. Glucose intolerance and P. Aeruginosa
lung infection seem to be associated to low CRF in children and adolescents
with CF.
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Affiliation(s)
- Marcella Burghard
- Child Development, Exercise, and Physical Literacy Center, Wilhelmina Children's Hospital, University Medical Center Utrecht, P.O. Box 85090, 3508 EA Utrecht, The Netherlands.,Cystic Fibrosis Center Utrecht, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Tim Takken
- Child Development, Exercise, and Physical Literacy Center, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Merel M Nap-van der Vlist
- Department of Social Pediatrics, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Sanne L Nijhof
- Department of Social Pediatrics, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands
| | - C Kors van der Ent
- Cystic Fibrosis Center Utrecht, University Medical Center Utrecht, Utrecht, The Netherlands.,Department of Pediatric Pulmonology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Harry G M Heijerman
- Cystic Fibrosis Center Utrecht, University Medical Center Utrecht, Utrecht, The Netherlands.,Division Heart and Lung, Department of Pulmonology, Cystic Fibrosis Center Utrecht, University Medical Center Utrecht, Utrecht, The Netherlands
| | - H J Erik Hulzebos
- Child Development, Exercise, and Physical Literacy Center, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands.,Cystic Fibrosis Center Utrecht, University Medical Center Utrecht, Utrecht, The Netherlands
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6
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Gruet M, Saynor ZL, Urquhart DS, Radtke T. Rethinking physical exercise training in the modern era of cystic fibrosis: A step towards optimising short-term efficacy and long-term engagement. J Cyst Fibros 2021; 21:e83-e98. [PMID: 34493444 DOI: 10.1016/j.jcf.2021.08.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 07/18/2021] [Accepted: 08/04/2021] [Indexed: 12/17/2022]
Abstract
Exercise is considered as an important component of the package of care delivered to people with cystic fibrosis (pwCF). However, despite the well-known short-term physiological and psychological benefits, training effects are heterogenous and the transfer of structured exercise programmes to the daily life of pwCF is challenging. Training concepts and strategies developed over the last decades must be adapted to consider the aging population of pwCF with associated comorbidities, and also a new generation of young pwCF that are healthier than ever. In the present review we propose a new framework for optimising the choice among available exercise training procedures and we provide a theoretical and scientifically justified rationale for considering and testing new exercise training modalities. We propose a multidisciplinary approach, considering various physiological, psychological and logistical factors, with the aim to increase effects of exercise training and build positive long-term exercise behaviour.
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Affiliation(s)
- Mathieu Gruet
- IAPS Laboratory, University of Toulon, Toulon, France..
| | - Zoe L Saynor
- Physical Activity, Health and Rehabilitation Thematic Research Group, School of Sport, Health and Exercise Science, Faculty of Science and Health, University of Portsmouth, Portsmouth, UK
| | - Don S Urquhart
- Department of Paediatric Respiratory and Sleep Medicine, Royal Hospital for Children and Young People, Edinburgh, Scotland, UK.; Department of Child Life and Health, University of Edinburgh, Scotland, UK
| | - Thomas Radtke
- Division of Occupational and Environmental Medicine, Epidemiology, Biostatistics and Prevention Institute, University of Zurich & University Hospital Zurich, Zurich, Switzerland
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7
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Revuelta Iniesta R, Causer AJ, Arregui-Fresneda I, Connett G, Allenby MI, Daniels T, Carroll MP, Urquhart DS, Saynor ZL. The impact of plasma 25-hydroxyvitamin D on pulmonary function and exercise physiology in cystic fibrosis: A multicentre retrospective study. J Hum Nutr Diet 2021; 35:363-375. [PMID: 33908093 DOI: 10.1111/jhn.12906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 04/21/2021] [Indexed: 12/01/2022]
Abstract
BACKGROUND A 25-hydroxyvitamin D (25OHD) may exert immunomodulatory effects on respiratory health, which may translate to improvements in exercise physiology. Thus, we aimed to investigate whether plasma 25OHD is associated with lung function and aerobic fitness in people with cystic fibrosis (pwCF). METHODS A multicentre retrospective review of pwCF (> 9 years old) attending the Royal Hospital for Sick Children (Edinburgh) or Wessex CF-Unit (Southampton) was performed between July 2017 and October 2019. Demographic and clinical data were collected. Plasma 25OHD measured closest in time to clinical cardiopulmonary exercise testing and/or spirometry [forced expiratory volume (FEV1 )% predicted] was recorded. Pancreatic insufficiency was diagnosed based on faecal elastase of < 100 µg g-1 . We performed multiple-regression analysis with aerobic fitness outcomes [peak oxygen uptake (VO2 peak )] and FEV1 % predicted as primary outcomes. RESULTS Ninety pwCF [mean ± SD age: 19.1 ± 8.6 years, 54 (60%) children, 48 (53%) males and 88 (98%) Caucasian] were included. 25OHD deficiency and insufficiency was 15 (17%) and 44 (49%), respectively. 25OHD deficiency and insufficiency was significantly associated with pancreatic insufficiency (χ2 = 4.8, p = 0.02). Plasma 25OHD was not significantly associated with FEV1 % predicted (r2 = 0.06, p = 0.42, 95% CI = -0.09 to 0.19) or VO2 peak (r2 = 0.04, p = 0.07, 95% CI = -011 to 0.005) in all pwCF. However, 25OHD was significantly associated with both FEV1 % (r2 = 0.15, p = 0.02, 95% CI = 1.99-2.64) and VO2 peak (r2 = 0.13, p = 0.05, 95% CI = -0.26 to -0.005) in the paediatric cohort. CONCLUSIONS We showed that 25OHD is associated with improved lung function and aerobic fitness in children and adolescents with CF. Mechanistic and high-quality prospective studies including both lung function and aerobic fitness as primary outcomes are now warranted.
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Affiliation(s)
- Raquel Revuelta Iniesta
- School of Sport and Health Sciences, University of Exeter, Exeter, UK.,Child Life and Health, University of Edinburgh, Edinburgh, UK
| | - Adam J Causer
- Department for Health, University of Bath, Bath, UK.,Wessex Cystic Fibrosis Unit, University Hospital Southampton Foundation NHS Trust, Southampton, UK
| | - Irantzu Arregui-Fresneda
- Wessex Cystic Fibrosis Unit, University Hospital Southampton Foundation NHS Trust, Southampton, UK
| | - Gary Connett
- National Institute for Health Research, Southampton Biomedical Research Centre, Southampton Children's Hospital, Southampton, UK
| | - Mark I Allenby
- Wessex Cystic Fibrosis Unit, University Hospital Southampton Foundation NHS Trust, Southampton, UK
| | - Thomas Daniels
- Wessex Cystic Fibrosis Unit, University Hospital Southampton Foundation NHS Trust, Southampton, UK
| | - Mary P Carroll
- Wessex Cystic Fibrosis Unit, University Hospital Southampton Foundation NHS Trust, Southampton, UK
| | - Don S Urquhart
- Department of Paediatric Respiratory and Sleep Medicine, Royal Hospital for Sick Children, Edinburgh, UK
| | - Zoe L Saynor
- Wessex Cystic Fibrosis Unit, University Hospital Southampton Foundation NHS Trust, Southampton, UK.,School of Sport, Health and Exercise Sciences, University of Portsmouth, Portsmouth, UK
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8
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Causer AJ, Shute JK, Cummings MH, Shepherd AI, Gruet M, Costello JT, Bailey S, Lindley M, Pearson C, Connett G, Allenby MI, Carroll MP, Daniels T, Saynor ZL. Circulating biomarkers of antioxidant status and oxidative stress in people with cystic fibrosis: A systematic review and meta-analysis. Redox Biol 2020; 32:101436. [PMID: 32044291 PMCID: PMC7264436 DOI: 10.1016/j.redox.2020.101436] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 01/14/2020] [Accepted: 01/16/2020] [Indexed: 02/03/2023] Open
Abstract
Introduction Oxidative stress may play an important role in the pathophysiology of cystic fibrosis (CF). This review aimed to quantify CF-related redox imbalances. Methods Systematic searches of the Medline, CINAHL, CENTRAL and PsycINFO databases were conducted. Mean content of blood biomarkers from people with clinically-stable CF and non-CF controls were used to calculate the standardized mean difference (SMD) and 95% confidence intervals (95% CI). Results Forty-nine studies were eligible for this review including a total of 1792 people with CF and 1675 controls. Meta-analysis revealed that protein carbonyls (SMD: 1.13, 95% CI: 0.48 to 1.77), total F2-isoprostane 8-iso-prostaglandin F2α (SMD: 0.64, 95% CI: 0.23 to 1.05) and malondialdehyde (SMD: 1.34, 95% CI: 0.30 to 2.39) were significantly higher, and vitamins A (SMD: −0.66, 95% CI -1.14 to −0.17) and E (SMD: −0.74, 95% CI: −1.28 to −0.20), β-carotene (SMD: −1.80, 95% CI: −2.92 to −0.67), lutein (SMD: −1.52, 95% CI: −1.83 to −1.20) and albumin (SMD: −0.98, 95% CI: −1.68 to −0.27) were significantly lower in the plasma or serum of people with CF versus controls. Conclusions This systematic review and meta-analysis found good evidence for reduced antioxidant capacity and elevated oxidative stress in people with clinically-stable CF. Blood biomarkers of oxidative stress were elevated in stable CF vs non-CF controls. Lipid peroxidation was positively correlated with age and immune cell count in CF. Antioxidants vitamins A & E, β-carotene, lutein and albumin were lower in stable CF. Antioxidants were positively correlated with body mass index and lung function in CF.
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Affiliation(s)
- Adam J Causer
- School of Sport, Health and Exercise Science, Faculty of Science and Health, University of Portsmouth, Portsmouth, UK; Cystic Fibrosis Unit, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Janis K Shute
- School of Pharmacy and Biomedical Sciences, Faculty of Science and Health, University of Portsmouth, Portsmouth, UK
| | - Michael H Cummings
- Department of Diabetes and Endocrinology, Queen Alexandra Hospital, Portsmouth, UK
| | - Anthony I Shepherd
- School of Sport, Health and Exercise Science, Faculty of Science and Health, University of Portsmouth, Portsmouth, UK
| | - Mathieu Gruet
- Laboratory of Impact of Physical Activity on Health (IAPS), UR n°201723207F, University of Toulon, France
| | - Joseph T Costello
- School of Sport, Health and Exercise Science, Faculty of Science and Health, University of Portsmouth, Portsmouth, UK
| | - Stephen Bailey
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - Martin Lindley
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - Clare Pearson
- Cystic Fibrosis Unit, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Gary Connett
- National Institute for Health Research, Southampton Biomedical Research Centre, Southampton Children's Hospital, Southampton, UK
| | - Mark I Allenby
- Cystic Fibrosis Unit, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Mary P Carroll
- Cystic Fibrosis Unit, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Thomas Daniels
- Cystic Fibrosis Unit, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Zoe L Saynor
- School of Sport, Health and Exercise Science, Faculty of Science and Health, University of Portsmouth, Portsmouth, UK; Cystic Fibrosis Unit, University Hospital Southampton NHS Foundation Trust, Southampton, UK.
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