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McEachan RRC, Santorelli G, Watmuff A, Mason D, Barber SE, Bingham DD, Bird PK, Lennon L, Lewer D, Mon-Williams M, Shire KA, Waiblinger D, West J, Yang TC, Lawlor DA, Pickett KE, Wright J. Cohort Profile Update: Born in Bradford. Int J Epidemiol 2024; 53:dyae037. [PMID: 38552669 PMCID: PMC11065350 DOI: 10.1093/ije/dyae037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 02/27/2024] [Indexed: 05/04/2024] Open
Affiliation(s)
- Rosemary R C McEachan
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, West Yorkshire, UK
| | - Gillian Santorelli
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, West Yorkshire, UK
| | - Aidan Watmuff
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, West Yorkshire, UK
| | - Dan Mason
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, West Yorkshire, UK
| | - Sally E Barber
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, West Yorkshire, UK
| | - Daniel D Bingham
- Faculty of Health Studies, University of Bradford, Bradford, West Yorkshire, UK
| | - Philippa K Bird
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, West Yorkshire, UK
| | - Laura Lennon
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, West Yorkshire, UK
| | - Dan Lewer
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, West Yorkshire, UK
| | - Mark Mon-Williams
- School of Psychology, University of Leeds, Leeds, West Yorkshire, UK
| | - Katy A Shire
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, West Yorkshire, UK
| | - Dagmar Waiblinger
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, West Yorkshire, UK
| | - Jane West
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, West Yorkshire, UK
| | - Tiffany C Yang
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, West Yorkshire, UK
| | - Deborah A Lawlor
- MRC Integrative Epidemiology Unit, University of Bristol, Clifton, Bristol, UK
- Bristol Medical School, University of Bristol, Clifton, Bristol, UK
| | - Kate E Pickett
- Department of Health Sciences, University of York, York, West Yorkshire, UK
| | - John Wright
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, West Yorkshire, UK
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Ziauddeen N, Jeffrey RF, Waiblinger D, Fraser SD, Alwan NA, Yuen HM, Azad R, Mason D, Wright J, Coward RJ, Roderick PJ. Ethnic differences in kidney function in childhood: the Born in Bradford Cohort Renal Study. Wellcome Open Res 2023; 7:112. [PMID: 37274450 PMCID: PMC10233317 DOI: 10.12688/wellcomeopenres.17796.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/22/2023] [Indexed: 07/27/2023] Open
Abstract
Background: Endstage kidney failure rates are higher in South Asians than in White Europeans. Low birth weight is associated with adult chronic kidney disease and is more common in South Asians. Foetal kidney size was smaller in South Asians in the Born in Bradford (BiB) birth cohort. As part of BiB follow up, we aimed to investigate if there were ethnic differences in kidney function and blood pressure in early childhood and whether this was different by foetal kidney size. Methods: Serum creatinine, cystatin C, urea, and urinary albumin to creatinine ratio (ACR), protein to creatinine ratio (PCR) and retinol binding protein (RBP) were analysed in blood and urine samples from those who participated in the BiB follow-up at 7-11 years. Ethnicity was categorised by parental self-report as White European and South Asian. Estimated glomerular filtration rate (eGFR) was calculated using Schwartz, and cystatin C Zappitelli and Filler equations. Linear regression was used to examine the association between ethnicity and eGFR, PCR and blood pressure. Results: 1591 children provided blood (n=1403) or urine (n=625) samples. Mean eGFR was 92 ml/min/1.73m 2 (standard deviation (SD) 9) using Schwartz (n=1156) and 94 (SD 11) using Zappitelli (n=1257). CKD prevalence was rare (1 with eGFR <60 ml/min/1.73m 2, 14 (2.4%) had raised ACR (>2.5 mg/mmol in boys/3.5 mg/mmol in girls). Diastolic blood pressure was higher in South Asian children (difference 2.04 mmHg, 95% CI 0.99 to 3.10) but was not significant in adjusted analysis. There was no evidence of association in adjusted models between ethnicity and any eGFR or urinary measure at this age. Conclusions: There was no evidence of significant ethnic differences in kidney function at pre-pubertal age despite differences in kidney volume at birth. Longitudinal follow-up is required to track ethnic patterns in kidney function and blood pressure as children develop through puberty.
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Affiliation(s)
- Nida Ziauddeen
- School of Primary Care, Population Sciences and Medical Education, Faculty of Medicine, University of Southampton, Southampton, UK
- NIHR Applied Research Collaboration Wessex, Southampton, UK
| | - Robin F. Jeffrey
- Bradford Institute for Health Research, Bradford Royal Infirmary, Bradford, UK
| | - Dagmar Waiblinger
- Bradford Institute for Health Research, Bradford Royal Infirmary, Bradford, UK
| | - Simon D.S. Fraser
- School of Primary Care, Population Sciences and Medical Education, Faculty of Medicine, University of Southampton, Southampton, UK
- NIHR Applied Research Collaboration Wessex, Southampton, UK
| | - Nisreen A. Alwan
- School of Primary Care, Population Sciences and Medical Education, Faculty of Medicine, University of Southampton, Southampton, UK
- NIHR Applied Research Collaboration Wessex, Southampton, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Ho M. Yuen
- School of Primary Care, Population Sciences and Medical Education, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Rafaq Azad
- Bradford Institute for Health Research, Bradford Royal Infirmary, Bradford, UK
| | - Dan Mason
- Bradford Institute for Health Research, Bradford Royal Infirmary, Bradford, UK
| | - John Wright
- Bradford Institute for Health Research, Bradford Royal Infirmary, Bradford, UK
| | | | - Paul J. Roderick
- School of Primary Care, Population Sciences and Medical Education, Faculty of Medicine, University of Southampton, Southampton, UK
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Associations between Cord Blood Leptin Levels and Childhood Adiposity Differ by Sex and Age at Adiposity Assessment. Life (Basel) 2022; 12:life12122060. [PMID: 36556424 PMCID: PMC9780853 DOI: 10.3390/life12122060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/23/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022] Open
Abstract
Lower cord blood leptin levels have been associated with lower and higher adiposity in childhood and associations seem to differ according to the child’s age, methods of adiposity assessment and sex. Our aim was to investigate sex-specific associations of cord blood leptinemia with childhood adiposity at birth, 3 and 5 years of age. We measured cord blood leptin using Luminex immunoassays in 520 offspring from the Gen3G cohort. We tested associations between cord blood leptin and body mass index (BMI) z-score, skinfolds thicknesses (SFT), and body composition using dual-energy X-ray absorptiometry, adjusted for confounders. At birth, girls had almost twice as much leptin in cord blood as boys (15.5 [8.9; 25.6] vs. 8.6 [4.9; 15.0] ng/mL; p < 0.0001) as well as significantly greater adiposity. Lower levels of cord blood leptin were associated with higher sum of SFT (β = −0.05 ± 0.02; p = 0.03) and higher BMI z-score (β= −0.22 ± 0.08; p = 0.01) in 3-year-old boys only. We did not observe these associations at age 5, or in girls. Our results suggest a sexual dimorphism in the programming of leptin sensitivity and childhood adiposity, but further observational and functional studies are needed to better understand the role of leptin in early life.
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Cissé AH, Taine M, Tafflet M, de Lauzon‐Guillain B, Clément K, Khalfallah O, Davidovic L, Lioret S, Charles MA, Heude B. Cord blood leptin level and a common variant of its receptor as determinants of the BMI trajectory: The EDEN mother-child cohort. Pediatr Obes 2022; 17:e12955. [PMID: 35747935 PMCID: PMC9787343 DOI: 10.1111/ijpo.12955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 05/24/2022] [Accepted: 06/01/2022] [Indexed: 12/30/2022]
Abstract
BACKGROUND Cord blood leptin is an indicator of neonatal fat mass and could shape postnatal adiposity trajectories. Investigating genetic polymorphisms of the leptin receptor gene (LEPR) could help understand the mechanisms involved. OBJECTIVES We aimed to investigate the association of cord blood leptin level and the LEPR rs9436303 polymorphism, with body mass index (BMI) at adiposity peak (AP) and age at adiposity rebound (AR). METHODS In the EDEN cohort, BMI at AP and age at AR were estimated with polynomial mixed models, for 1713 and 1415 children, respectively. Multivariable linear regression models allowed for examining the associations of cord blood leptin level and LEPR rs9436303 genotype with BMI at AP and age at AR adjusted for potential confounders including birth size groups. We also tested interactions between cord blood leptin level and rs9436303 genotype. RESULTS Increased leptin level was associated with reduced BMI at AP and early age at AR (comparing the highest quintile of leptin level to the others). Rs9436303 G-allele carriage was associated with increased BMI at AP and later age at AR but did not modulate the association with leptin level. CONCLUSION These results illustrate the role of early life body composition and the intrauterine environment in the programming of adiposity in childhood.
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Affiliation(s)
- Aminata H. Cissé
- Centre for Research in Epidemiology and StatisticSUniversité de Paris‐cité, INSERM, INRAEParisFrance
| | - Marion Taine
- Centre for Research in Epidemiology and StatisticSUniversité de Paris‐cité, INSERM, INRAEParisFrance
| | - Muriel Tafflet
- Centre for Research in Epidemiology and StatisticSUniversité de Paris‐cité, INSERM, INRAEParisFrance
| | | | - Karine Clément
- NutriOmics Research Unit, Assistance Publique‐Hôpitaux de Paris, Pitié‐Salpêtrière Hopital, Nutrition Department ParisSorbonne Université, INSERMParisFrance
| | - Olfa Khalfallah
- Institut de Pharmacologie Moléculaire et Cellulaire, CNRS, INSERM, Université Nice Côte d'Azur, UMR7275, UMR_SValbonneFrance
| | - Laetitia Davidovic
- Institut de Pharmacologie Moléculaire et Cellulaire, CNRS, INSERM, Université Nice Côte d'Azur, UMR7275, UMR_SValbonneFrance
| | - Sandrine Lioret
- Centre for Research in Epidemiology and StatisticSUniversité de Paris‐cité, INSERM, INRAEParisFrance
| | - Marie A. Charles
- Centre for Research in Epidemiology and StatisticSUniversité de Paris‐cité, INSERM, INRAEParisFrance
| | - Barbara Heude
- Centre for Research in Epidemiology and StatisticSUniversité de Paris‐cité, INSERM, INRAEParisFrance
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West J, Santorelli G, Collings P, Bingham D, Whincup P, Sattar N, Norris T, Wright J, Lawlor DA. Associations of cord leptin and cord insulin with adiposity and blood pressure in White British and Pakistani children aged 4/5 years. Wellcome Open Res 2019; 4:157. [PMID: 32954010 PMCID: PMC7475957 DOI: 10.12688/wellcomeopenres.15433.1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/02/2019] [Indexed: 11/29/2022] Open
Abstract
Background: Cord leptin and cord insulin concentrations may be important biomarkers of child adiposity and cardiovascular health, especially in populations with an increased long-term risk of type 2 diabetes and cardiovascular diseases. We aimed to determine whether cord leptin and insulin are associated with adiposity and early cardiovascular health at age 4/5, and whether any associations differ between White British and Pakistani children. Methods: Using bi-ethnic cohort data from 6060 mother-offspring pairs (2717 (44.8%) White British, 3343 (55.2%) Pakistani), we examined associations of cord leptin and insulin with adiposity (BMI, skinfold thickness) and systolic and diastolic blood pressure at age 4/5. Results: Cord leptin and insulin were higher in Pakistani compared to White British children (7.4 ng/ml versus 6.7 ng/ml and 4.1 mU/L versus 3.63 mU/L , respectively). Associations with adiposity measurements were similar in both groups and close to the null value. For example, each 10 ng/ml higher cord leptin was associated with a difference in mean childhood BMI of 0.10 kg/m 2 (95% CI 0.01, 0.19) in White British, 0.01 kg/m 2 (95% CI -0.08, 0.10) in Pakistani and 0.04 kg/m 2 (95% CI -0.02, 0.11) in both groups combined. Associations with systolic and diastolic blood pressure were also close to the null and consistent in both groups. Conclusions: We found no evidence that cord leptin or insulin were likely to be valuable biomarkers for predicting later adiposity and blood pressure in White British or Pakistani children. For now, other factors such as family history and social-economic status may be more useful markers of risk.
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Affiliation(s)
- Jane West
- Bradford Institute for Health Research, Bradford, BD9 6RJ, UK
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, BS8 2BN, UK
| | | | - Paul Collings
- Bradford Institute for Health Research, Bradford, BD9 6RJ, UK
| | - Daniel Bingham
- Bradford Institute for Health Research, Bradford, BD9 6RJ, UK
| | - Peter Whincup
- Population Health Research Institute, St George's, University of London, London, SW17 0RE, UK
| | - Naveed Sattar
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, G12 8TA, UK
| | - Tom Norris
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, LE11 3TU, UK
| | - John Wright
- Bradford Institute for Health Research, Bradford, BD9 6RJ, UK
| | - Debbie A. Lawlor
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, BS8 2BN, UK
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