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Bernardes-Loch RM, Ribeiro AC, Ramírez-López CJ, Loch Gomes RA, Barros E, Filomeno Fontes EA, Baracat-Pereira MC. Human milk proteins differentiate over the sex of newborns and across stages of lactation. Clin Nutr ESPEN 2024; 62:144-156. [PMID: 38901936 DOI: 10.1016/j.clnesp.2024.05.013] [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: 12/18/2023] [Revised: 05/02/2024] [Accepted: 05/16/2024] [Indexed: 06/22/2024]
Abstract
BACKGROUND & AIMS Human milk (HM) is a complete food that meets the nutritional and energy demands of the newborns. It contains numerous bioactive components, including functional proteins. Variations in HM energy and lipid content have already been reported related to the newborn's sex, but differences between protein profiles are still scarce. This work aimed to identify differences between HM proteins produced by mothers of female and male newborns, in the lactation stages of colostrum and mature milk, and the metabolic pathways involved. METHODS A total of 98 HM samples were collected from 39 lactating women and classified according to the newborn's sex, stages of lactation, and three mothers' age groups, and evaluated about protein concentration and one-dimensional electrophoretic profile. Next, to assess samples with the greatest differences, the HM proteins regarding the newborn's sex and the stages of lactation were compared using nano-LC-MS/MS, in 24 HM samples randomly rearranged into four groups: female and male infants, and colostrum and mature milk. Functional classification, metabolic pathways, and protein interaction networks were analyzed by Gene Ontology, KEGG, and STRING, respectively. RESULTS The soluble protein content of HM decreased throughout lactation, with differences regarding isolated factors, such as mothers' age group, child's sex and stages of lactation, and also in terms of their interactions. A total of 146 proteins were identified, 42 of which showed different abundances over the sexes of newborns and 53 between the stages of lactation. In general, proteins related to metabolic processes were up-regulated for mothers of male infants and in the mature stage of lactation, while proteins related to defense were up-regulated in mothers of female infants and in the colostrum phase. CONCLUSION This study indicated that there are differentiated and specific nutritional and defense needs of newborns, by sex and by lactation phase, which is highly relevant for a more appropriate supply of food to infants receiving HM from donor mothers.
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Affiliation(s)
| | - Alessandra Casagrande Ribeiro
- Department of Biochemistry and Molecular Biology, Universidade Federal de Viçosa, Viçosa, MG 36.570-900, Brazil; Department of Food Technology, Universidade Federal de Viçosa, Viçosa, MG 36.570-900, Brazil.
| | | | - Ruither Arthur Loch Gomes
- Department of Biochemistry and Molecular Biology, Universidade Federal de Viçosa, Viçosa, MG 36.570-900, Brazil.
| | - Edvaldo Barros
- Nucleus for Biomolecule Analysis, Universidade Federal de Viçosa, Viçosa, MG 36.570-900, Brazil.
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2
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Lis-Kuberka J, Berghausen-Mazur M, Orczyk-Pawiłowicz M. Gestational Diabetes Mellitus and Colostral Appetite-Regulating Adipokines. Int J Mol Sci 2024; 25:3853. [PMID: 38612666 PMCID: PMC11011253 DOI: 10.3390/ijms25073853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Revised: 03/25/2024] [Accepted: 03/26/2024] [Indexed: 04/14/2024] Open
Abstract
Gestational diabetes mellitus (GDM) is a complex metabolic disorder that has short- and long-term effects on maternal and offspring health. This study aimed to assess the impact of maternal hyperglycemia severity, classified as GDM-G1 (diet treatment) and GDM-G2 (insulin treatment) on colostral appetite-regulating molecules. Colostrum samples were collected from hyperglycemic (N = 30) and normoglycemic (N = 21) mothers, and the concentrations of milk hormones were determined by immunoenzymatic assay. A difference was found for milk ghrelin, but not for molecules such as adiponectin, leptin, resistin, or IGF-I levels, in relation to maternal hyperglycemia. The colostral ghrelin in the GDM-G1 cohort (0.21 ng/mL) was significantly lower than for GDM-G2 (0.38 ng/mL) and non-GDM groups (0.36 ng/mL). However, colostral resistin was higher, but not significantly, for GDM-G1 (13.33 ng/mL) and GDM-G2 (12.81 ng/mL) cohorts than for normoglycemic mothers (7.89 ng/mL). The lack of difference in relation to hyperglycemia for milk leptin, adiponectin, leptin-adiponectin ratio, resistin, and IGF-I levels might be the outcome of effective treatment of GDM during pregnancy. The shift between ghrelin and other appetite-regulating hormones might translate into altered ability to regulate energy balance, affecting offspring's metabolic homeostasis.
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Affiliation(s)
- Jolanta Lis-Kuberka
- Division of Chemistry and Immunochemistry, Department of Biochemistry and Immunochemistry, Wroclaw Medical University, M. Skłodowskiej-Curie 48/50, 50-369 Wroclaw, Poland;
| | - Marta Berghausen-Mazur
- Department of Neonatology, J. Gromkowski Provincial Specialist Hospital, Koszarowa 5, 51-149 Wroclaw, Poland
- Faculty of Medicine, Wroclaw University of Science and Technology, Hoene-Wrońskiego 13c, 58-376 Wroclaw, Poland
| | - Magdalena Orczyk-Pawiłowicz
- Division of Chemistry and Immunochemistry, Department of Biochemistry and Immunochemistry, Wroclaw Medical University, M. Skłodowskiej-Curie 48/50, 50-369 Wroclaw, Poland;
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3
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Balcells-Esponera C, Borràs-Novell C, López-Abad M, Cubells Serra I, Basseda Puig A, Izquierdo Renau M, Herranz Barbero A, Iglesias-Platas I. Bioactive peptides in preterm human milk: Impact of maternal characteristics and their association to neonatal outcomes. Biofactors 2024; 50:135-144. [PMID: 37584623 DOI: 10.1002/biof.1997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 05/29/2023] [Indexed: 08/17/2023]
Abstract
Human milk adipokines in term babies seem partially determined by maternal factors and affect infant's development. We aimed to describe bioactive peptide concentration in very preterm human milk and associations to maternal characteristics and postnatal growth. Mothers delivering ≤32 weeks of gestation and their infant/s were recruited. At 4 weeks of lactation, an aliquot of 24-h-pooled milk was collected for exclusively breastfeeding dyads. Insulin, leptin, adiponectin, and milk fat globule epidermal growth factor-8 (MFG-E8) were measured by enzyme-linked immunoabsorbent assay in skimmed milk. One hundred mothers (28.8 ± 2.3 weeks at delivery) provided a milk sample. Milk insulin was related to gestational age, pre-pregnancy body mass index (BMI), and galactagogue treatment (final model: adjusted R2 : 0.330, p < 0.0001; adjusted β coefficients: galactagogue treatment: 0.348, p 0.001; pre-pregnancy BMI: 0.274, p 0.009; gestational age: -0.290, p 0.007). Adiponectin was higher in mothers with gestational diabetes (30.7 ± 6.5 vs. 24.8 ± 8 ng/mL, p 0.044). Leptin was associated with pre-pregnancy BMI (Spearman's ρ: 0.648, p < 0.0001) and MFG-E8 to presence of labor and multiple pregnancy (final linear regression model, R2 : 0.073, p 0.028, adjusted β coefficients: presence of labor -0.229, p 0.050; twins: -0.192, p 0.099). Milk adiponectin was associated with a greater decrease in length z-scores from birth to 28 days (Pearson's r: -0.225, p 0.032) and to discharge (Pearson's r: -0.290, p 0.003). Milk MFG-E8 was lower in milk of mothers whose babies experienced late-onset sepsis (13.3 ± 5.8 vs. 16.8 ± 6.3 μg/mL, p 0.023). Adipokines levels in preterm human milk are partially related to maternal metabolic status. Milk peptide concentration associates with early neonatal growth trajectories.
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Affiliation(s)
- Carla Balcells-Esponera
- Neonatology Department, BCNatal-Centre de Medicina Maternofetal i Neonatologia de Barcelona, Hospital Sant Joan de Déu, Universitat de Barcelona, Barcelona, Spain
| | - Cristina Borràs-Novell
- Neonatology Department, BCNatal-Centre de Medicina Maternofetal i Neonatologia de Barcelona, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
| | - Miriam López-Abad
- Neonatology Department, BCNatal-Centre de Medicina Maternofetal i Neonatologia de Barcelona, Hospital Sant Joan de Déu, Universitat de Barcelona, Barcelona, Spain
| | | | | | - Montserrat Izquierdo Renau
- Neonatology Department, BCNatal-Centre de Medicina Maternofetal i Neonatologia de Barcelona, Hospital Sant Joan de Déu, Universitat de Barcelona, Barcelona, Spain
| | - Ana Herranz Barbero
- Neonatology Department, BCNatal-Centre de Medicina Maternofetal i Neonatologia de Barcelona, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
| | - Isabel Iglesias-Platas
- Neonatology Department, BCNatal-Centre de Medicina Maternofetal i Neonatologia de Barcelona, Hospital Sant Joan de Déu, Universitat de Barcelona, Barcelona, Spain
- Neonatal Intensive Care Unit, Norfolk and Norwich University Hospital Trust, Norwich, UK
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4
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Krebs NF, Belfort MB, Meier PP, Mennella JA, O'Connor DL, Taylor SN, Raiten DJ. Infant factors that impact the ecology of human milk secretion and composition-a report from "Breastmilk Ecology: Genesis of Infant Nutrition (BEGIN)" Working Group 3. Am J Clin Nutr 2023; 117 Suppl 1:S43-S60. [PMID: 37173060 PMCID: PMC10356564 DOI: 10.1016/j.ajcnut.2023.01.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 12/08/2022] [Accepted: 01/03/2023] [Indexed: 05/15/2023] Open
Abstract
Infants drive many lactation processes and contribute to the changing composition of human milk through multiple mechanisms. This review addresses the major topics of milk removal; chemosensory ecology for the parent-infant dyad; the infant's inputs into the composition of the human milk microbiome; and the impact of disruptions in gestation on the ecology of fetal and infant phenotypes, milk composition, and lactation. Milk removal, which is essential for adequate infant intake and continued milk synthesis through multiple hormonal and autocrine/paracrine mechanisms, should be effective, efficient, and comfortable for both the lactating parent and the infant. All 3 components should be included in the evaluation of milk removal. Breastmilk "bridges" flavor experiences in utero with postweaning foods, and the flavors become familiar and preferred. Infants can detect flavor changes in human milk resulting from parental lifestyle choices, including recreational drug use, and early experiences with the sensory properties of these recreational drugs impact subsequent behavioral responses. Interactions between the infant's own developing microbiome, that of the milk, and the multiple environmental factors that are drivers-both modifiable and nonmodifiable-in the microbial ecology of human milk are explored. Disruptions in gestation, especially preterm birth and fetal growth restriction or excess, impact the milk composition and lactation processes such as the timing of secretory activation, adequacy of milk volume and milk removal, and duration of lactation. Research gaps are identified in each of these areas. To assure a sustained and robust breastfeeding ecology, these myriad infant inputs must be systematically considered.
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Affiliation(s)
- Nancy F Krebs
- Section of Nutrition, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, USA.
| | - Mandy B Belfort
- Department of Pediatric Newborn Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Paula P Meier
- Department of Pediatrics, Rush University Medical Center, Chicago, IL, USA
| | | | - Deborah L O'Connor
- Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada; The Hospital for Sick Children, Toronto, ON, Canada
| | - Sarah N Taylor
- Division of Neonatology, Department of Pediatrics, Yale School of Medicine, New Haven, CT, USA
| | - Daniel J Raiten
- Pediatric Growth and Nutrition Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
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5
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Muelbert M, Alexander T, Vickers MH, Harding JE, Galante L, Bloomfield FH. Glucocorticoids in preterm human milk. Front Nutr 2022; 9:965654. [PMID: 36238462 PMCID: PMC9552215 DOI: 10.3389/fnut.2022.965654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 08/29/2022] [Indexed: 11/17/2022] Open
Abstract
Background Glucocorticoids (GCs), cortisol and cortisone, are essential regulators of many physiological responses, including immunity, stress and mammary gland function. GCs are present in human milk (HM), but whether maternal and infant factors are associated with HM GC concentration following preterm birth is unclear. Materials and methods HM samples were collected on postnatal day 5 and 10 and at 4 months’ corrected age (4m CA) in a cohort of moderate- and late-preterm infants. GCs in HM were measured by liquid chromatography-tandem mass spectrometry. Relationships between GCs in HM and both maternal and infant characteristics were investigated using Spearman’s correlations and linear mixed models. Results 170 mothers of 191 infants provided 354 HM samples. Cortisol concentrations in HM increased from postnatal day 5–4m CA (mean difference [MD] 0.6 ± 0.1 ng/ml, p < 0.001). Cortisone concentration did not change across lactation but was higher than cortisol throughout. Compared to no antenatal corticosteroid (ANS), a complete course of ANS was associated with lower GC concentrations in HM through to 4m CA (cortisol: MD –0.3 ± 0.1 ng/ml, p < 0.01; cortisone MD –1.8 ± 0.4 ng/ml, p < 0.001). At 4m CA, higher maternal perceived stress was negatively associated with GC concentrations in HM (cortisol adjusted beta-coefficient [aβ] –0.01 ± 0.01 ng/ml, p = 0.05; and cortisone aβ –0.1 ± 0.03 ng/ml, p = 0.01), whereas higher postpartum depression and maternal obesity were associated with lower cortisone concentrations (aβ –0.1 ± 0.04 ng/ml p < 0.05; MD [healthy versus obese] –0.1 ± 0.04 ng/ml p < 0.05, respectively). There was a weak positive correlation between GC concentrations in HM and gestational age at birth (r = 0.1, p < 0.05). Infant birth head circumference z-score was negatively associated with cortisol concentrations (aβ –0.01 ± 0.04 ng/ml, p < 0.05). At hospital discharge, fat-free mass showed a weak positive correlation with cortisol concentrations (r = 0.2, p = 0.03), while fat mass showed a weak negative correlation with cortisone concentrations (r = –0.25, p < 0.001). Conclusion The mammary gland appears to protect the infant from cortisol through inactivation into cortisone. Maternal and infant characteristics were associated with concentration of GCs in HM, including ANS, stress and depression scores, obesity, gestational age and infant size. The effects of HM glucocorticoids on long-term health outcomes requires further research.
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Affiliation(s)
- Mariana Muelbert
- Liggins Institute, University of Auckland, Auckland, New Zealand
| | - Tanith Alexander
- Liggins Institute, University of Auckland, Auckland, New Zealand
- Neonatal Unit, Kidz First, Middlemore Hospital, Auckland, New Zealand
| | - Mark H. Vickers
- Liggins Institute, University of Auckland, Auckland, New Zealand
| | - Jane E. Harding
- Liggins Institute, University of Auckland, Auckland, New Zealand
| | - Laura Galante
- Liggins Institute, University of Auckland, Auckland, New Zealand
| | - Frank H. Bloomfield
- Liggins Institute, University of Auckland, Auckland, New Zealand
- *Correspondence: Frank H. Bloomfield,
| | - the DIAMOND study groupMuelbertMariana1AlexanderTanith12GalanteLaura1AsadiSharin1ChongClara Y.L.1AlsweilerJane M.34BekerFriederike56BloomfieldFrank H.13Cameron-SmithDavid1CrowtherCaroline A.1HardingJane E.1JiangYannan7MeyerMichael P.24MilanAmber18o’SullivanJustin M.1WallClare R.91Liggins Institute, University of Auckland, Auckland, New Zealand2Neonatal Unit, Kidz First, Middlemore Hospital, Auckland, New Zealand3Newborn Services, Auckland City Hospital, Auckland, New Zealand4Department of Paediatrics: Child and Youth Health.5Department of Newborn Services, Mater Mothers’ Hospital, Brisbane, QLD, Australia6Mater Research Institute, The University of Queensland, Brisbane, QLD, Australia7Department of Statistics, Faculty of Science, University of Auckland, Auckland, New Zealand8Food and Bio-based Products, AgResearch Grasslands, Palmerston North, New Zealand9Department of Nutrition, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
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6
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Suwaydi MA, Zhou X, Perrella SL, Wlodek ME, Lai CT, Gridneva Z, Geddes DT. The Impact of Gestational Diabetes Mellitus on Human Milk Metabolic Hormones: A Systematic Review. Nutrients 2022; 14:nu14173620. [PMID: 36079876 PMCID: PMC9460195 DOI: 10.3390/nu14173620] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 08/29/2022] [Accepted: 08/29/2022] [Indexed: 02/07/2023] Open
Abstract
Gestational diabetes mellitus (GDM) is a common pregnancy complication with short- and long-term health consequences for the infant and mother. Breastfeeding is the recommended mode of feeding as it offers an opportunity to reduce the risk of GDM consequences, likely partially mediated through changes in human milk (HM) composition. This review systematically reviewed 12 identified studies that investigated the impact of GDM on concentrations of HM metabolic hormones. Meta-analysis was not possible due to significant heterogeneity in study designs and hormone measurement techniques. The risk of bias was assessed using the National Institute for Clinical Excellence (NICE) tool. The methodological qualities were medium in half of the studies, while 25% (3/12) of studies carried a high risk of bias. Significant relationships were reported between GDM and concentrations of HM ghrelin (3/3 studies), insulin (2/4), and adiponectin (2/6), which may play an integral role in infant growth and development. In conclusion, preliminary evidence suggests that GDM may alter HM metabolic hormone concentrations; however, these relationships may be limited to the early lactation stage.
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Affiliation(s)
- Majed A. Suwaydi
- School of Molecular Sciences, The University of Western Australia, Crawley, WA 6009, Australia or
- Department of Medical Laboratory Technology, College of Applied Medical Sciences, Jazan University, Jazan 54142, Saudi Arabia
| | - Xiaojie Zhou
- School of Molecular Sciences, The University of Western Australia, Crawley, WA 6009, Australia or
| | - Sharon L. Perrella
- School of Molecular Sciences, The University of Western Australia, Crawley, WA 6009, Australia or
| | - Mary E. Wlodek
- School of Molecular Sciences, The University of Western Australia, Crawley, WA 6009, Australia or
- Population Health, Murdoch Children’s Research Institute (MCRI), Parkville, VI 3052, Australia
| | - Ching Tat Lai
- School of Molecular Sciences, The University of Western Australia, Crawley, WA 6009, Australia or
| | - Zoya Gridneva
- School of Molecular Sciences, The University of Western Australia, Crawley, WA 6009, Australia or
- Correspondence: ; Tel.: +61-8-6488-4467
| | - Donna T. Geddes
- School of Molecular Sciences, The University of Western Australia, Crawley, WA 6009, Australia or
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Galante L, Lahdenperä M, Rautava S, Pentti J, Ollila H, Tarro S, Vahtera J, Gonzales-Inca C, Kivimäki M, Lummaa V, Lagström H. Neighborhood Disadvantage, Greenness, and Population Density as Predictors of Breastfeeding Practices: A Population Cohort Study from Finland. J Nutr 2022; 152:1721-1728. [PMID: 35325221 PMCID: PMC9258599 DOI: 10.1093/jn/nxac069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 01/21/2022] [Accepted: 03/15/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Many environmental factors are known to hinder breastfeeding, yet the role of the family living environment in this regard is still poorly understood. OBJECTIVES We used data from a large cohort to identify associations between neighborhood characteristics and breastfeeding behavior. METHODS Our observational study included 11,038 children (0-2 years) from the Southwest Finland Birth Cohort. Participant information was obtained from the Medical Birth Register and municipal follow-up clinics. Neighborhood socioeconomic disadvantage, greenness, and population density were measured for a period of 5 years prior to childbirth within the residential neighborhood on a 250 × 250-m grid. Any breastfeeding and breastfeeding at 6 months were the primary outcomes. Binary logistic regression models were adjusted for maternal health and socioeconomic factors. RESULTS Adjusted analyses suggest that mothers living in less populated areas were less likely to display any breastfeeding (OR: 0.46; 95% CI: 0.36, 0.59) and breastfeeding at 6 months (OR: 0.37; 95% CI: 0.34, 0.40). Mothers living in highly disadvantaged neighborhoods were less likely to display any breastfeeding if the neighborhood was less populated (OR: 0.54; 95% CI: 0.30, 0.95) but more likely to breastfeed at 6 months if the neighborhood was highly populated (OR: 3.74; 95% CI: 1.92, 7.29). Low greenness was associated with higher likelihood of any breastfeeding (OR: 3.82; 95% CI: 1.53, 9.55) and breastfeeding at 6 months (OR: 4.41; 95% CI: 3.44, 5). CONCLUSIONS Our results suggest that neighborhood characteristics are associated with breastfeeding behavior in Finland. Unravelling breastfeeding decisions linked to the living environment could help identify interventions that will allow the appropriate support for all mothers and infants across different environmental challenges.
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Affiliation(s)
| | - Mirkka Lahdenperä
- Department of Biology, University of Turku, Turku, Finland,Department of Public Health, University of Turku and Turku University Hospital, Turku, Finland,Centre for Population Health Research, University of Turku, Turku, Finland
| | - Samuli Rautava
- Department of Pediatrics, University of Turku, Turku, Finland,Department of Pediatrics, University of Helsinki, Helsinki, Finland,Children's Hospital, Helsinki University Hospital, Helsinki, Finland
| | - Jaana Pentti
- Department of Public Health, University of Turku and Turku University Hospital, Turku, Finland,Clinicum, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Helena Ollila
- Clinical Research Centre, Turku University Hospital, Turku, Finland
| | - Saija Tarro
- Department of Public Health, University of Turku and Turku University Hospital, Turku, Finland,Centre for Population Health Research, University of Turku, Turku, Finland
| | - Jussi Vahtera
- Department of Public Health, University of Turku and Turku University Hospital, Turku, Finland,Centre for Population Health Research, University of Turku, Turku, Finland
| | | | - Mika Kivimäki
- Clinicum, Faculty of Medicine, University of Helsinki, Helsinki, Finland,Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland,Department of Epidemiology and Public Health, University College London, London, United Kingdom
| | - Virpi Lummaa
- Department of Biology, University of Turku, Turku, Finland
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8
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Galante L, Reynolds CM, Milan AM, Alexander T, Bloomfield FH, Jiang Y, Asadi S, Muelbert M, Cameron-Smith D, Pundir S, Vickers MH. Metabolic Hormone Profiles in Breast Milk From Mothers of Moderate-Late Preterm Infants Are Associated With Growth From Birth to 4 Months in a Sex-Specific Manner. Front Nutr 2021; 8:641227. [PMID: 34124118 PMCID: PMC8193224 DOI: 10.3389/fnut.2021.641227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 04/19/2021] [Indexed: 12/25/2022] Open
Abstract
Background: Differing environmental conditions experienced by mother-infant dyads may influence composition of the milk received by the infant. As a consequence, diverse milk compositional profiles may contribute to different postnatal outcomes, especially in infants facing adverse perinatal environments. We investigated whether variability in milk concentrations of key metabolic hormones is associated with different growth outcomes in infants born preterm, a perinatal complication known to impact on infant growth. Methods: Human milk samples were collected from 169 mothers of 191 infants enrolled in the DIAMOND trial, a randomized trial of nutrition for moderate-late preterm infants, at 5 and 10 days postpartum and again at 4 months' corrected age and analyzed for leptin, adiponectin and insulin-like growth factor (IGF)-1. Infant weight and body composition were measured at birth, discharge and 4 months' corrected age. Multiple linear regression models were used to examine correlations between milk hormone concentrations, weight z-scores and body composition at discharge and 4 months' corrected age, and weight gain from birth to 4 months' corrected age. Sex-specific interactions were examined. Results: Higher milk IGF-1 concentrations on day 5 after birth were associated with greater infant fat-free mass at 4 months' corrected age. Milk IGF-1 concentrations at 4 months were positively associated with fat mass and fat-free mass at 4 months in boys but not girls. Milk leptin concentrations on day 5 after birth were positively associated with fat mass at discharge from hospital, but negatively associated with fat mass at 4 months' corrected age. No significant association was found for milk adiponectin concentrations. Conclusion: Milk IGF-1 and leptin concentrations in mothers of moderate-late preterm babies are associated with different growth and body composition through to 4 months' corrected age and these associations are often different in boys and girls. The sex-specific effects of nutrient and hormone exposure during early life in preterm infants warrants further investigation to optimize the nutritional care these infants receive, particularly in hospital, where the same nutrition is provided to boys and girls.
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Affiliation(s)
- Laura Galante
- The Liggins Institute, University of Auckland, Auckland, New Zealand
| | - Clare M Reynolds
- The Liggins Institute, University of Auckland, Auckland, New Zealand.,School of Public Health, Physiotherapy and Sports Science, Institute of Food and Health, Conway Institute, University College Dublin, Belfield, Ireland
| | - Amber M Milan
- The Liggins Institute, University of Auckland, Auckland, New Zealand.,Food Nutrition & Health Team, Food & Bio-Based Products Group, AgResearch, Palmerston North, New Zealand
| | - Tanith Alexander
- The Liggins Institute, University of Auckland, Auckland, New Zealand.,Neonatal Unit, Kidz First, Middlemore Hospital, Auckland, New Zealand
| | | | - Yannan Jiang
- The Liggins Institute, University of Auckland, Auckland, New Zealand.,Department of Statistics, Faculty of Science, University of Auckland, Auckland, New Zealand
| | - Sharin Asadi
- The Liggins Institute, University of Auckland, Auckland, New Zealand
| | - Mariana Muelbert
- The Liggins Institute, University of Auckland, Auckland, New Zealand
| | - David Cameron-Smith
- The Liggins Institute, University of Auckland, Auckland, New Zealand.,Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research, Singapore, Singapore
| | - Shikha Pundir
- The Liggins Institute, University of Auckland, Auckland, New Zealand
| | - Mark H Vickers
- The Liggins Institute, University of Auckland, Auckland, New Zealand
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