1
|
Neonatal intake of Omega-3 fatty acids enhances lipid oxidation in adipocyte precursors. iScience 2022; 26:105750. [PMID: 36590177 PMCID: PMC9800552 DOI: 10.1016/j.isci.2022.105750] [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: 11/30/2021] [Revised: 09/26/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022] Open
Abstract
Establishing metabolic programming begins during fetal and postnatal development, and early-life lipid exposures play a critical role during neonatal adipogenesis. We define how neonatal consumption of a low omega-6 to -3 fatty acid ratio (n6/n3 FA ratio) establishes FA oxidation in adipocyte precursor cells (APCs) before they become adipocytes. In vivo, APCs isolated from mouse pups exposed to the low n6/n3 FA ratio had superior FA oxidation capacity, elevated beige adipocyte mRNAs Ppargc1α, Ucp2, and Runx1, and increased nuclear receptor NR2F2 protein. In vitro, APC treatment with NR2F2 ligand-induced beige adipocyte mRNAs and increased mitochondrial potential but not mass. Single-cell RNA-sequencing analysis revealed low n6/n3 FA ratio yielded more mitochondrial-high APCs and linked APC NR2F2 levels with beige adipocyte signatures and FA oxidation. Establishing beige adipogenesis is of clinical relevance, because fat depots with energetically active, smaller, and more numerous adipocytes improve metabolism and delay metabolic dysfunction.
Collapse
|
2
|
Infant Red Blood Cell Arachidonic to Docosahexaenoic Acid Ratio Inversely Associates with Fat-Free Mass Independent of Breastfeeding Exclusivity. Nutrients 2022; 14:nu14204238. [PMID: 36296922 PMCID: PMC9608835 DOI: 10.3390/nu14204238] [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: 09/14/2022] [Revised: 10/06/2022] [Accepted: 10/08/2022] [Indexed: 11/17/2022] Open
Abstract
The prevalence of childhood obesity has increased nearly ten times over the last 40 years, influenced by early life nutrients that have persistent effects on life-long metabolism. During the first six months, infants undergo accelerated adipose accumulation, but little is known regarding infant fatty acid status and its relationship to infant body composition. We tested the hypothesis that a low arachidonic to docosahexaenoic acid ratio (AA/DHA) in infant red blood cells (RBCs), a long-term indicator of fatty acid intake, would associate with more infant fat-free mass (FFM) and/or less adipose accumulation over the first 4 months of life. The fatty acid and composition of breastmilk and infant RBCs, as well as the phospholipid composition of infant RBCs, were quantified using targeted and unbiased lipid mass spectrometry from infants predominantly breastfed or predominantly formula-fed. Regardless of feeding type, FFM accumulation was inversely associated with the infant’s RBC AA/DHA ratio (p = 0.029, R2 = 0.216). Infants in the lowest AA/DHA ratio tertile had significantly greater FFM when controlling for infant sex, adiposity at 2 weeks, and feeding type (p < 0.0001). Infant RBC phospholipid analyses revealed greater peroxisome-derived ether lipids in the low AA/DHA group, primarily within the phosphatidylethanolamines. Our findings support a role for a low AA/DHA ratio in promoting FFM accrual and identify peroxisomal activity as a target of DHA in the growing infant. Both FFM abundance and peroxisomal activity may be important determinants of infant metabolism during development.
Collapse
|
3
|
Fan C. EFFECT OF SPORTS MEDICINE ON REDUCING BODY FAT PERCENTAGE AND LEAN BODY MASS. REV BRAS MED ESPORTE 2021. [DOI: 10.1590/1517-8692202127072021_0337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
ABSTRACT Introduction: Aerobic exercise has begun to be widely recognized as a reasonable means of preventing fat and losing weight. Scholars have confirmed that sports can help the human body lose weight and lose fat. Objective: This article measures the exercise performance indicators of subjects in different body fat percentage groups and studies the relationship between body fat percentage and exercise performance indicators. Methods: The study uses experimental methods to determine the percentage of body fat of the subjects. After physical exercise and aerobic exercise, the volunteers were tested for aerobic capacity indicators. Results: The body fat percentage of physically inactive persons was negatively correlated with aerobic and anaerobic exercise capacity indexes. Conclusion: The mechanism of aerobic exercise in weight loss treatment has the effect of promoting lipolysis and regulating blood lipid metabolism. At the same time, it has a significant influence on the number and activity of fat cells. Level of evidence II; Therapeutic studies - investigation of treatment results.
Collapse
|
4
|
Bernabe-García M, Calder PC, Villegas-Silva R, Rodríguez-Cruz M, Chávez-Sánchez L, Cruz-Reynoso L, Mateos-Sánchez L, Lara-Flores G, Aguilera-Joaquín AR, Sánchez-García L. Efficacy of Docosahexaenoic Acid for the Prevention of Necrotizing Enterocolitis in Preterm Infants: A Randomized Clinical Trial. Nutrients 2021; 13:nu13020648. [PMID: 33671220 PMCID: PMC7922869 DOI: 10.3390/nu13020648] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 02/10/2021] [Accepted: 02/12/2021] [Indexed: 01/10/2023] Open
Abstract
Necrotizing enterocolitis (NEC) is an inflammatory bowel disease and a leading cause of morbidity and mortality in preterm infants. In this study, a randomized double-blind parallel-group (1:1) trial was carried out in two neonatal intensive care units of two tertiary hospitals. Two hundred and twenty-five preterm newborns with an expected functional gastrointestinal tract were recruited and received an enteral dose of 75 mg of docosahexaenoic acid (DHA)/kg body weight or high-oleic sunflower oil daily for 14 days from the first enteral feed after birth. Confirmed NEC was evaluated with Bell’s scale from stage ≥ IIa. Two hundred and fourteen randomized infants were analyzed in terms of the intent-to-treat (DHA-group: n = 105; control-group: n = 109); data for two hundred infants were analysed per protocol. Confirmed NEC was lower in infants from the DHA-group compared with the control-group (0/100 vs. 7/100; p = 0.007), with RR = 0.93 (95% CI 0.881 to 0.981), risk difference = −7%, (95% CI −12.00 to −1.99), and number needed-to-treat = 15 (95% CI 8.3 to 50). Intent-to-treat analysis showed a lower level of treatment failure in the DHA-group compared with the control-group (6/105 (6%) vs. 16/109 (15%); p = 0.03, RR = 0.905, (95% CI 0.826 to 0.991)). The results after multivariate-regression analysis remained significant. Adverse events (apart from the incidence of NEC) were not different between groups. A daily dose of DHA for 14 days starting with the first enteral feed may prevent NEC in preterm infants.
Collapse
Affiliation(s)
- Mariela Bernabe-García
- Unidad de Investigación Médica en Nutrición, UMAE Hospital de Pediatría, CMN Siglo XXI, Instituto Mexicano del Seguro Social, México City 06720, Mexico; (M.B.-G.); (M.R.-C.)
| | - Philip C. Calder
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK
- Institute for Life Sciences, University of Southampton, Southampton SO17 1BJ, UK
- NIHR Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton SO16 6YD, UK
- Correspondence:
| | - Raúl Villegas-Silva
- Neonatología, Hospital Infantil de México Federico Gómez, México City 06720, Mexico;
| | - Maricela Rodríguez-Cruz
- Unidad de Investigación Médica en Nutrición, UMAE Hospital de Pediatría, CMN Siglo XXI, Instituto Mexicano del Seguro Social, México City 06720, Mexico; (M.B.-G.); (M.R.-C.)
| | - Luis Chávez-Sánchez
- Unidad de Investigación Médica en Inmunología, UMAE Hospital de Pediatría, CMN Siglo XXI, Instituto Mexicano del Seguro Social, México City 06720, Mexico;
| | - Leonardo Cruz-Reynoso
- Unidad de Cuidados Intensivos Neonatales, UMAE Hospital de Gineco-Obstetricia No.3, CMN La Raza, Instituto Mexicano del Seguro Social, México City 02990, Mexico; (L.C.-R.); (A.R.A.-J.); (L.S.-G.)
| | - Leovigildo Mateos-Sánchez
- Unidad de Cuidados Intensivos Neonatales, UMAE Hospital de Gineco-Obstetricia N° 4 “Luis Castelazo Ayala”, Instituto Mexicano del Seguro Social, México City 01090, Mexico; (L.M.-S.); (G.L.-F.)
| | - Gabriel Lara-Flores
- Unidad de Cuidados Intensivos Neonatales, UMAE Hospital de Gineco-Obstetricia N° 4 “Luis Castelazo Ayala”, Instituto Mexicano del Seguro Social, México City 01090, Mexico; (L.M.-S.); (G.L.-F.)
| | - Augusto R. Aguilera-Joaquín
- Unidad de Cuidados Intensivos Neonatales, UMAE Hospital de Gineco-Obstetricia No.3, CMN La Raza, Instituto Mexicano del Seguro Social, México City 02990, Mexico; (L.C.-R.); (A.R.A.-J.); (L.S.-G.)
| | - Luisa Sánchez-García
- Unidad de Cuidados Intensivos Neonatales, UMAE Hospital de Gineco-Obstetricia No.3, CMN La Raza, Instituto Mexicano del Seguro Social, México City 02990, Mexico; (L.C.-R.); (A.R.A.-J.); (L.S.-G.)
| |
Collapse
|