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Cheng TS, Day FR, Perry JRB, Luan J, Langenberg C, Forouhi NG, Wareham NJ, Ong KK. Prepubertal Dietary and Plasma Phospholipid Fatty Acids Related to Puberty Timing: Longitudinal Cohort and Mendelian Randomization Analyses. Nutrients 2021; 13:1868. [PMID: 34070864 PMCID: PMC8228200 DOI: 10.3390/nu13061868] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/24/2021] [Accepted: 05/28/2021] [Indexed: 01/17/2023] Open
Abstract
Dietary intakes of polyunsaturated, monounsaturated and saturated fatty acids (FAs) have been inconsistently associated with puberty timing. We examined longitudinal associations of prepubertal dietary and plasma phospholipid FAs with several puberty timing traits in boys and girls. In the Avon Longitudinal Study of Parents and Children, prepubertal fat intakes at 3-7.5 years and plasma phospholipid FAs at 7.5 years were measured. Timings of Tanner stage 2 genital or breast development and voice breaking or menarche from repeated reports at 8-17 years, and age at peak height velocity (PHV) from repeated height measurements at 5-20 years were estimated. In linear regression models with adjustment for maternal and infant characteristics, dietary substitution of polyunsaturated FAs for saturated FAs, and higher concentrations of dihomo-γ-linolenic acid (20:3n6) and palmitoleic acid (16:1n7) were associated with earlier timing of puberty traits in girls (n = 3872) but not boys (n = 3654). In Mendelian Randomization models, higher genetically predicted circulating dihomo-γ-linolenic acid was associated with earlier menarche in girls. Based on repeated dietary intake data, objectively measured FAs and genetic causal inference, these findings suggest that dietary and endogenous metabolic pathways that increase plasma dihomo-γ-linolenic acid, an intermediate metabolite of n-6 polyunsaturated FAs, may promote earlier puberty timing in girls.
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Affiliation(s)
- Tuck Seng Cheng
- MRC Epidemiology Unit, Institute of Metabolic Science, Cambridge Biomedical Campus Box 285, University of Cambridge School of Clinical Medicine, Cambridge CB2 0QQ, UK; (T.S.C.); (F.R.D.); (J.R.B.P.); (J.L.); (C.L.); (N.G.F.); (N.J.W.)
| | - Felix R. Day
- MRC Epidemiology Unit, Institute of Metabolic Science, Cambridge Biomedical Campus Box 285, University of Cambridge School of Clinical Medicine, Cambridge CB2 0QQ, UK; (T.S.C.); (F.R.D.); (J.R.B.P.); (J.L.); (C.L.); (N.G.F.); (N.J.W.)
| | - John R. B. Perry
- MRC Epidemiology Unit, Institute of Metabolic Science, Cambridge Biomedical Campus Box 285, University of Cambridge School of Clinical Medicine, Cambridge CB2 0QQ, UK; (T.S.C.); (F.R.D.); (J.R.B.P.); (J.L.); (C.L.); (N.G.F.); (N.J.W.)
| | - Jian’an Luan
- MRC Epidemiology Unit, Institute of Metabolic Science, Cambridge Biomedical Campus Box 285, University of Cambridge School of Clinical Medicine, Cambridge CB2 0QQ, UK; (T.S.C.); (F.R.D.); (J.R.B.P.); (J.L.); (C.L.); (N.G.F.); (N.J.W.)
| | - Claudia Langenberg
- MRC Epidemiology Unit, Institute of Metabolic Science, Cambridge Biomedical Campus Box 285, University of Cambridge School of Clinical Medicine, Cambridge CB2 0QQ, UK; (T.S.C.); (F.R.D.); (J.R.B.P.); (J.L.); (C.L.); (N.G.F.); (N.J.W.)
| | - Nita G. Forouhi
- MRC Epidemiology Unit, Institute of Metabolic Science, Cambridge Biomedical Campus Box 285, University of Cambridge School of Clinical Medicine, Cambridge CB2 0QQ, UK; (T.S.C.); (F.R.D.); (J.R.B.P.); (J.L.); (C.L.); (N.G.F.); (N.J.W.)
| | - Nicholas J. Wareham
- MRC Epidemiology Unit, Institute of Metabolic Science, Cambridge Biomedical Campus Box 285, University of Cambridge School of Clinical Medicine, Cambridge CB2 0QQ, UK; (T.S.C.); (F.R.D.); (J.R.B.P.); (J.L.); (C.L.); (N.G.F.); (N.J.W.)
| | - Ken K. Ong
- MRC Epidemiology Unit, Institute of Metabolic Science, Cambridge Biomedical Campus Box 285, University of Cambridge School of Clinical Medicine, Cambridge CB2 0QQ, UK; (T.S.C.); (F.R.D.); (J.R.B.P.); (J.L.); (C.L.); (N.G.F.); (N.J.W.)
- Department of Paediatrics, University of Cambridge, Cambridge CB2 0QQ, UK
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