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Miklavcic JJ, Paterson N, Hahn-Holbrook J, Glynn L. Impact of FADS genotype on polyunsaturated fatty acid content in human milk extracellular vesicles: A genetic association study. JPEN J Parenter Enteral Nutr 2024; 48:479-485. [PMID: 38566550 DOI: 10.1002/jpen.2628] [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: 09/12/2023] [Revised: 03/12/2024] [Accepted: 03/15/2024] [Indexed: 04/04/2024]
Abstract
BACKGROUND Extracellular vesicles in human milk are critical in supporting newborn growth and development. Bioavailability of dietary extracellular vesicles may depend on the composition of membrane lipids. Single-nucleotide polymorphisms (SNPs) in the fatty acid desaturase gene cluster impact the content of long-chain polyunsaturated fatty acids in human milk phospholipids. This study investigated the relation between variation in FADS1 and FADS2 with the content of polyunsaturated fatty acids in extracellular vesicles from human milk. METHODS Milk was obtained from a cohort of mothers (N = 70) at 2-4 weeks of lactation. SNPs in the FADS gene locus were determined using pyrosequencing for rs174546 in FADS1 and rs174575 in FADS2. Quantitative lipidomic analysis of polyunsaturated fatty acids in human milk and extracellular vesicles from human milk was completed by gas chromatography-mass spectrometry. RESULTS The rs174546 and rs174575 genotypes were independent predictors of the arachidonic acid content in extracellular vesicles. The rs174546 genotype also predicted eicosapentaenoic acid and docosahexaenoic acid in extracellular vesicles. The reduced content of long-chain polyunsaturated fatty acids in extracellular vesicles in human milk may be due to lower fatty acid desaturase activity in mothers who are carriers of the A allele in rs174546 or the G allele in rs174575. CONCLUSION The polyunsaturated fatty acid composition of milk extracellular vesicles is predicted by the FADS genotype. These findings yield novel insights regarding extracellular vesicle content and composition that can inform the design of future research to explore how lipid metabolites impact the bioavailability of human milk extracellular vesicles.
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Affiliation(s)
- John J Miklavcic
- Schmid College of Science and Technology, Chapman University, Orange, California, USA
- School of Pharmacy, Chapman University, Irvine, California, USA
| | - Natalie Paterson
- Schmid College of Science and Technology, Chapman University, Orange, California, USA
| | - Jennifer Hahn-Holbrook
- Department of Psychological Services, University of California, Merced, Merced, California, USA
| | - Laura Glynn
- Crean College of Science, Chapman University, Orange, California, USA
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Vennard T, Meredith NA, Maria SD, Brink L, Shah N, Morrow AL, Simmons R, Gray MA, Phillips SC. A novel LC-MS/MS method to characterize the antimicrobial lipid glycerol monolaurate in global human milk. J Pharm Biomed Anal 2024; 238:115817. [PMID: 37939550 DOI: 10.1016/j.jpba.2023.115817] [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: 08/11/2023] [Revised: 10/16/2023] [Accepted: 10/25/2023] [Indexed: 11/10/2023]
Abstract
Glycerol monolaurate (GML), a monoglyceride found in human milk (HM), has antimicrobial properties against a broad spectrum of bacteria, viruses, and fungi. In this study, an LC-MS/MS method was developed and validated for quantifying GML in HM based on quantification of two distinct isomers, 1-monolaurin and 2-monolaurin. The method validation included assessments of selectivity (no interferences), linearity (r2 range of 0.9954- 0.9985 and 96 of 98 individual points having residual <15%), accuracy (average recovery of 96.4% across both isomers and a range of spiked levels), and precision (total GML repeatability 6.6% RSD and intermediate precision 9.7% RSD). This validated method was used to measure the concentration of GML in unpasteurized HM from 60 mothers and compared geographical locations (Cincinnati and Shanghai), lactation time (weeks 2 and 26), and self-reported maternal allergy status (yes or no). Our findings suggest GML concentration in unpasteurized HM is considerably lower than previously reported in a study characterizing pasteurized HM. The data reported here highlights a novel, validated method used to quantify GML in HM and identified no differences in total GML concentrations when comparing HM from different geographical locations, lactation times, and mother's allergy status.
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Affiliation(s)
- Thomas Vennard
- Reckitt/Mead Johnson Nutrition Institute, 2400 West Lloyd Expressway, Evansville, IN 47721, USA.
| | - Nathan A Meredith
- Reckitt/Mead Johnson Nutrition Institute, 2400 West Lloyd Expressway, Evansville, IN 47721, USA
| | - Sarah D Maria
- Reckitt/Mead Johnson Nutrition Institute, 2400 West Lloyd Expressway, Evansville, IN 47721, USA
| | - Lauren Brink
- Reckitt, 399 Interpace Parkway, Parsippany, NJ 07054-0225, USA
| | - Neil Shah
- Reckitt, Turner House, 103-105 Bath Road, Slough, Berkshire SL1 3UH, UK
| | - Ardythe L Morrow
- University of Cincinnati Medical Center, College of Medicine, Cincinnati, OH 45229, USA
| | - Ruth Simmons
- Reckitt, Turner House, 103-105 Bath Road, Slough, Berkshire SL1 3UH, UK
| | - Michael A Gray
- Reckitt/Mead Johnson Nutrition Institute, 2400 West Lloyd Expressway, Evansville, IN 47721, USA
| | - Shay C Phillips
- Reckitt/Mead Johnson Nutrition Institute, 2400 West Lloyd Expressway, Evansville, IN 47721, USA
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Xu WH, Chen YR, Tian HM, Chen YF, Gong JY, Yu HT, Liu GL, Xie L. Effects of dietary PUFA patterns and FADS genotype on breast milk PUFAs in Chinese lactating mothers. GENES & NUTRITION 2023; 18:16. [PMID: 37880594 PMCID: PMC10598896 DOI: 10.1186/s12263-023-00735-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 10/16/2023] [Indexed: 10/27/2023]
Abstract
BACKGROUND Breastfeeding affects the growth and development of infants, and polyunsaturated fatty acids (PUFAs) play a crucial role in this process. To explore the factors influencing the PUFA concentration in breast milk, we conducted research on two aspects: dietary fatty acid patterns and single nucleotide polymorphisms (SNPs) in maternal fatty acid desaturase genes. METHODS Three hundred seventy Chinese Han lactating mothers were recruited. A dietary semi-quantitative food frequency questionnaire (FFQ) was used to investigate the dietary intake of lactating mothers from 22 to 25 days postpartum for 1 year. Meanwhile, breast milk samples were collected from the participants and tested for the concentrations of 8 PUFAs and 10 SNP genotypes. We sought to determine the effect of dietary PUFA patterns and SNPs on breast milk PUFAs. We used SPSS 24.0 statistical software for data analysis. Statistical tests were all bilateral tests, with P < 0.05 as statistically significant. RESULTS Under the same dietary background, PUFA contents in breast milk expressed by most major allele homozygote mothers tended to be higher than that expressed by their counterparts who carried minor allele genes. Moreover, under the same gene background, PUFA contents in breast milk expressed by the mother's intake of essential PUFA pattern tended to be higher than that expressed by their counterparts who took the other two kinds of dietary. CONCLUSIONS Our study suggests that different genotypes and dietary PUFA patterns affect PUFA levels in breast milk. We recommend that lactating mothers consume enough essential fatty acids to ensure that their infants ingest sufficient PUFAs.
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Affiliation(s)
- Wen-Hui Xu
- Department of Nutrition and Food Hygiene, School of Public Health, Jilin University, No. 1163 Xinmin Street, Changchun, 130021, Jilin Province, China
| | - Yi-Ru Chen
- Department of Clinical Nutrition, China-Japan, Union Hospital of Jilin University, Changchun, 130032, Jilin Province, China
| | - Hui-Min Tian
- School of Nursing, Jilin University, Changchun, 130021, Jilin Province, China
| | - Yi-Fei Chen
- Department of Nutrition and Food Hygiene, School of Public Health, Jilin University, No. 1163 Xinmin Street, Changchun, 130021, Jilin Province, China
| | - Jia-Yu Gong
- Department of Nutrition and Food Hygiene, School of Public Health, Jilin University, No. 1163 Xinmin Street, Changchun, 130021, Jilin Province, China
| | - Hai-Tao Yu
- Department of Nutrition and Food Hygiene, School of Public Health, Jilin University, No. 1163 Xinmin Street, Changchun, 130021, Jilin Province, China
| | - Guo-Liang Liu
- Department of Nutrition and Food Hygiene, School of Public Health, Jilin University, No. 1163 Xinmin Street, Changchun, 130021, Jilin Province, China
| | - Lin Xie
- Department of Nutrition and Food Hygiene, School of Public Health, Jilin University, No. 1163 Xinmin Street, Changchun, 130021, Jilin Province, China.
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Wu WC, Wu PY, Chan CY, Lee MF, Huang CY. Effect of FADS1 rs174556 Genotype on Polyunsaturated Fatty Acid Status: A Systematic Review and Meta-Analysis. Adv Nutr 2023; 14:352-362. [PMID: 36806496 PMCID: PMC10229383 DOI: 10.1016/j.advnut.2023.01.007] [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: 12/02/2022] [Revised: 01/26/2023] [Accepted: 01/31/2023] [Indexed: 02/07/2023] Open
Abstract
PUFA status is highly implicated in cognitive development and metabolic disorder-related diseases. Genetic variants of FADS genes encoding enzymes that catalyze the rate-limiting steps of PUFA biosynthesis appear to be associated with n-3 and n-6 PUFA contents. Therefore, we conducted the first systematic review and meta-analysis to explore the association of the A-allele carriers of the FADS1 rs174556 with PUFA status. The PRISMA guidelines were followed. The literature search was conducted up to November 2022 in PubMed, Web of Science, Embase, Cochrane Library, Airiti Library, and CINAHL. The Joanna Briggs Institute checklists were used to assess the methodological quality. The correlation with 95% CIs was determined by a random-effect meta-analysis. Eleven studies that met the inclusion criteria and acceptable quality were included in this systematic review. The data on PUFA contents were collected when they were mainly analyzed using blood samples and breast milk. Results of the meta-analysis on eight studies (one randomized controlled trial, one cohort study, and six cross-sectional studies) showed that the A-allele carriers of rs174556 were significantly negatively correlated with the concentrations of AA (P = 0.001), EPA (P = 0.004), and DHA (P = 0.025). However, ALA and LA were not associated with the A-allele carriers. To clarify the discrepancy, we further divided the studies into blood samples and breast milk subgroups. The subgroup analysis revealed that the A-allele carriers of rs174556 were significantly positively correlated with LA (P = 0.031) and negatively correlated with AA (P = 0.001), EPA (P = 0.036), and DHA (P < 0.001) in the blood sample group, but not in the breast milk group. The current meta-analysis proved that the A-allele carriers of the FADS1 rs174556 appeared to be highly associated with lower concentrations of AA, EPA, and DHA but higher LA in the blood samples. The study has been registered on the International Prospective Register of Systematic Reviews (PROSPERO:CRD42022363978). Adv Nutr 2023;x:xx-xx.
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Affiliation(s)
- Wen-Chieh Wu
- Department of Nutrition, China Medical University, Taichung, Taiwan
| | - Pei-Yu Wu
- Department of Nutrition, China Medical University, Taichung, Taiwan
| | - Chien-Yi Chan
- Department of Nutrition and Health Sciences, Chang Jung Christian University, Tainan, Taiwan
| | - Ming-Fen Lee
- Department of Nutrition, China Medical University, Taichung, Taiwan
| | - Chun-Yin Huang
- Department of Nutrition, China Medical University, Taichung, Taiwan.
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Li P, Chen Y, Song J, Yan L, Tang T, Wang R, Fan X, Zhao Y, Qi K. Maternal DHA-rich n-3 PUFAs supplementation interacts with FADS genotypes to influence the profiles of PUFAs in the colostrum among Chinese Han population: a birth cohort study. Nutr Metab (Lond) 2022; 19:48. [PMID: 35871074 PMCID: PMC9308251 DOI: 10.1186/s12986-022-00683-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 06/10/2022] [Indexed: 11/30/2022] Open
Abstract
Background The single nucleotide polymorphisms (SNPs) in the fatty acid desaturases and elongases might associate with the endogenous synthesis of polyunsaturated fatty acids (PUFAs). However, the related epidemiological evidence is still conflicting. So we aimed to clearly evaluate the interactions between maternal DHA-rich n-3 PUFAs supplementation and the known 26 SNPs on the profiles of PUFAs in the colostrum using a Chinese birth cohort. Methods Totally, 1050 healthy mother-infant pairs were enrolled in this study at gestational 6–8 weeks when they established their pregnancy files at Fuxing Hospital affiliated to Capital Medical University in Beijing from January to December 2018. Meanwhile, their venous blood samples were obtained for DNA extraction to detect the genotypes of SNPs in the Fads1, Fads2, Fads3, Elovl2 and Elovl5 using the Matrix-Assisted Laser Desorption Ionization Time of Flight Mass Spectrometry. Then the colostrum samples were collected to determine the profiles of PUFAs by gas chromatography. Results Maternal DHA-rich n-3 PUFAs supplementation from the early and middle pregnancy could reduce the infant BMI at birth, and impact the profiles of PUFAs in the colostrum, as higher n-3 PUFAs (EPA, DHA, DHA/ALA and DHA/EPA), lower n-6 PUFAs (AA and AA/LA) and ∑-6/n-3ΣPUFAs. Moreover, there were significant correlations between multiple SNPs and the profiles of n-6 PUFAs (rs76996928 for LA, rs174550, rs174553 and rs174609 for AA, rs174550 and rs76996928 for AA/LA) and n-3 PUFAs in the colostrum (rs174448, rs174537, rs174550, rs174553, rs174598, rs3168072, rs174455 and rs174464 for ALA, rs174550, rs174553 and rs174598 for EPA, rs174455 and rs174464 for DHA, rs174448 and rs3168072 for DHA/EPA) using the multiple linear regressions by adjusting the maternal age, gestational week, mode of delivery, infant sex and BMI at birth, and all these above significant SNPs had the cumulative effects on the profiles of PUFAs. Furthermore, the pairwise comparisons also showed the meaningful interactions between maternal DHA-rich n-3 PUFAs supplementation and related genotypes of SNPs (rs76996928 for LA, rs174598 for EPA, rs174448 for DHA and DHA/EPA) on the contents of PUFAs in the colostrum. Conclusions Results from this birth cohort study proved that the pregnant women with the following SNPs such as Fads3 rs174455 T, Fads3 rs174464 A and Fads1 rs174448 G alleles should pay more attention on their exogenous DHA supplementation from the early and middle pregnancy for the blocked endogenous synthesis. Trial registration: This study was approved by the Ethics Committee of Beijing Pediatric Research Institution, Beijing Children’s Hospital affiliated to Capital Medical University (2016–08), which was also registered at the website of http://www.chictr.org.cn/showproj.aspx?proj=4673 (No: ChiCTR-OCH-14004900). Supplementary Information The online version contains supplementary material available at 10.1186/s12986-022-00683-3.
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Zielinska-Pukos MA, Bryś J, Wesolowska A, Hamulka J. Breastmilk PUFA strongly associated with maternal dietary intake but not anthropometric parameters and breastmilk carotenoids. Prostaglandins Leukot Essent Fatty Acids 2022; 186:102505. [PMID: 36279603 DOI: 10.1016/j.plefa.2022.102505] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 07/26/2022] [Accepted: 10/06/2022] [Indexed: 12/29/2022]
Abstract
BACKGROUND Long chain polyunsaturated fatty acids (PUFA) and the optimal n-6/n-3 fatty acids ratio are essential for proper neurodevelopment in infancy. This study aimed to evaluate the association between breastmilk fatty acid intake and maternal dietary intake, anthropometrics and breastmilk carotenoid levels. METHODS This observational, prospective study included 44 women in the first, third, and sixth month of lactation. At each study visit, maternal anthropometric measures were assessed and breastmilk samples were collected and assessed for fatty acids and carotenoids. At the third and sixth month, maternal diet was evaluated by three-day foods record. RESULTS Mean breastmilk docosahexaenoic (DHA) was 0.58%, 0.47%, and 0.49%, respectively at the 1, 3, and 6 month (p ≤ 0.05). Mean DHA intake were higher in month 3 compared to 6: 357 vs. 169 mg/day. Pre-pregnancy BMI was associated with SFA, PUFA, and n-6 PUFA at 1 month, whereas current BMI to SFA at months 1 and 3. DHA was correlated with lycopene, total carotenoids at 1 month and total carotenoids at month 3, whereas n-3 PUFA to lycopene at 1 month. DHA, n-3 PUFA, n-6 PUFA and saturated (SFA) levels were associated with its dietary intake both at months 3 and 6, AA/DHA and LA/ALA ratios only at month 3. CONCLUSIONS Maternal intake of PUFA and n-6/n-3 ratios were a good predictor of its breastmilk composition, whereas pre-pregnancy and current BMI, as well as breastmilk carotenoids had a limited influence.
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Affiliation(s)
- M A Zielinska-Pukos
- Department of Human Nutrition, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences - SGGW, Nowoursynowska St. 159, 02-776 Warsaw, Poland.
| | - J Bryś
- Department of Chemistry, Institute of Food Sciences, Warsaw University of Life Sciences - SGGW, Nowoursynowska St. 159, 02-776 Warsaw, Poland.
| | - A Wesolowska
- Laboratory of Human Milk and Lactation Research, Regional Human Milk Bank in Holy Family Hospital, Department of Medical Biology, Faculty of Health Science, Medical University of Warsaw, 14/16 Litewska St., 00-575 Warsaw, Poland.
| | - J Hamulka
- Department of Human Nutrition, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences - SGGW, Nowoursynowska St. 159, 02-776 Warsaw, Poland.
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Halim NFAA, Ali MSM, Leow ATC, Rahman RNZRA. Membrane fatty acid desaturase: biosynthesis, mechanism, and architecture. Appl Microbiol Biotechnol 2022; 106:5957-5972. [PMID: 36063178 DOI: 10.1007/s00253-022-12142-3] [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: 12/29/2021] [Revised: 08/16/2022] [Accepted: 08/18/2022] [Indexed: 11/25/2022]
Abstract
Fatty acid desaturase catalyzes the desaturation reactions by inserting double bonds into the fatty acyl chain, producing unsaturated fatty acids, which play a vital part in the synthesis of polyunsaturated fatty acids. Though soluble fatty acid desaturases have been described extensively in advanced organisms, there are very limited studies of membrane fatty acid desaturases due to their difficulties in producing a sufficient amount of recombinant desaturases. However, the advancement of technology has shown substantial progress towards the development of elucidating crystal structures of membrane fatty acid desaturase, thus, allowing modification of structure to be manipulated. Understanding the structure, mechanism, and biosynthesis of fatty acid desaturase lay a foundation for the potential production of various strategies associated with alteration and modifications of polyunsaturated fatty acids. This manuscript presents the current state of knowledge and understanding about the structure, mechanisms, and biosynthesis of fatty acid desaturase. In addition, the role of unsaturated fatty acid desaturases in health and diseases is also encompassed. This will be useful in understanding the molecular basis and structural protein of fatty acid desaturase that are significant for the advancement of therapeutic strategies associated with the improvement of health status. KEY POINTS: • Current state of knowledge and understanding about the biosynthesis, mechanisms, and structure of fatty acid desaturase. • The role of unsaturated fatty acid desaturase. • The molecular basis and structural protein elucidated the crystal structure of fatty acid desaturase.
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Affiliation(s)
- Nur Farah Anis Abd Halim
- Enzyme and Microbial Technology Research Centre, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Mohd Shukuri Mohamad Ali
- Enzyme and Microbial Technology Research Centre, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Adam Thean Chor Leow
- Enzyme and Microbial Technology Research Centre, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Raja Noor Zaliha Raja Abd Rahman
- Enzyme and Microbial Technology Research Centre, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.
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Niwa S, Kawabata T, Shoji K, Ogata H, Kagawa Y, Nakayama K, Yanagisawa Y, Iwamoto S, Tatsuta N, Asato K, Arima T, Yaegashi N, Nakai K. Investigation of Maternal Diet and FADS1 Polymorphism Associated with Long-Chain Polyunsaturated Fatty Acid Compositions in Human Milk. Nutrients 2022; 14:nu14102160. [PMID: 35631303 PMCID: PMC9143760 DOI: 10.3390/nu14102160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 05/20/2022] [Accepted: 05/20/2022] [Indexed: 11/21/2022] Open
Abstract
Increasing the amount of long-chain polyunsaturated fatty acids (LCPUFA) in human milk is an important strategy for infant growth and development. We investigated the associations of LCPUFA compositions in human milk with maternal diet (especially fish and shellfish intake), with fatty acid Δ5 desaturase gene (FADS1) polymorphisms, and with gene-diet interactions. The present study was performed as part of an adjunct study of the Japan Environment and Children’s Study. The participants were 304 lactating females, who provided human milk 6−7 months after delivery. Fatty acids in human milk were analyzed by gas chromatography, and dietary surveys were conducted using a brief self-administered diet history questionnaire. We also analyzed a single nucleotide polymorphism of FADS1 (rs174547, T/C). There was a significant difference in arachidonic acid (ARA) composition in human milk among the genotype groups, and the values were decreasing in the order of TT > TC > CC. The concentrations of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) were also different between TT and CC genotype, indicating a tendency for decreasing values in the same order. The composition of ARA showed significant gene−dietary interactions in multiple regression analysis, and the positive correlation between fish and shellfish intake and ARA composition in human milk was significant only in the CC genotype. Moreover, the factor most strongly associated with EPA and DHA composition in human milk was fish and shellfish intake. Therefore, it was suggested that increasing fish and shellfish intake in mothers may increase EPA and DHA composition in human milk, while increasing fish and shellfish intake in CC genotype mothers may lead to increased ARA composition in human milk.
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Affiliation(s)
- Sakurako Niwa
- Faculty of Nutrition, Kagawa Nutrition University, 3-9-21 Chiyoda, Sakado 350-0288, Saitama, Japan; (T.K.); (K.S.); (H.O.); (Y.K.)
- Faculty of Home Economics, Gifu Women’s University, 80 Taromaru, Gifu City 501-2592, Gifu, Japan
- Correspondence: ; Tel.: +81-49-282-3705
| | - Terue Kawabata
- Faculty of Nutrition, Kagawa Nutrition University, 3-9-21 Chiyoda, Sakado 350-0288, Saitama, Japan; (T.K.); (K.S.); (H.O.); (Y.K.)
| | - Kumiko Shoji
- Faculty of Nutrition, Kagawa Nutrition University, 3-9-21 Chiyoda, Sakado 350-0288, Saitama, Japan; (T.K.); (K.S.); (H.O.); (Y.K.)
| | - Hiromitsu Ogata
- Faculty of Nutrition, Kagawa Nutrition University, 3-9-21 Chiyoda, Sakado 350-0288, Saitama, Japan; (T.K.); (K.S.); (H.O.); (Y.K.)
| | - Yasuo Kagawa
- Faculty of Nutrition, Kagawa Nutrition University, 3-9-21 Chiyoda, Sakado 350-0288, Saitama, Japan; (T.K.); (K.S.); (H.O.); (Y.K.)
| | - Kazuhiro Nakayama
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa 277-8562, Chiba, Japan;
| | - Yoshiko Yanagisawa
- Division of Human Genetics, Center for Molecular Medicine, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke 329-0498, Tochigi, Japan; (Y.Y.); (S.I.)
| | - Sadahiko Iwamoto
- Division of Human Genetics, Center for Molecular Medicine, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke 329-0498, Tochigi, Japan; (Y.Y.); (S.I.)
| | - Nozomi Tatsuta
- Department of Development and Environmental Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Sendai 980-8575, Miyagi, Japan; (N.T.); (K.A.); (K.N.)
| | - Kaname Asato
- Department of Development and Environmental Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Sendai 980-8575, Miyagi, Japan; (N.T.); (K.A.); (K.N.)
| | - Takahiro Arima
- Environment and Genome Research Center, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Sendai 980-8575, Miyagi, Japan; (T.A.); (N.Y.)
| | - Nobuo Yaegashi
- Environment and Genome Research Center, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Sendai 980-8575, Miyagi, Japan; (T.A.); (N.Y.)
| | - Kunihiko Nakai
- Department of Development and Environmental Medicine, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Sendai 980-8575, Miyagi, Japan; (N.T.); (K.A.); (K.N.)
- School of Sport and Health Science, Tokai Gakuen University, Nishinohora 21-233, Miyoshi 470-0207, Aichi, Japan
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FADS1 and FADS2 Gene Polymorphisms Modulate the Relationship of Omega-3 and Omega-6 Fatty Acid Plasma Concentrations in Gestational Weight Gain: A NISAMI Cohort Study. Nutrients 2022; 14:nu14051056. [PMID: 35268031 PMCID: PMC8912382 DOI: 10.3390/nu14051056] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Revised: 02/22/2022] [Accepted: 02/25/2022] [Indexed: 02/04/2023] Open
Abstract
The polymorphisms of fatty acid desaturase genes FADS1 and FADS2 have been associated with an increase in weight gain. We investigated FADS1 and FADS2 gene polymorphisms and the relation between ω-3 and ω-6 fatty acid plasma concentrations and gestational weight gain. A prospective cohort study of 199 pregnant women was followed in Santo Antônio de Jesus, Brazil. Plasma levels of polyunsaturated fatty acids (PUFAs) were measured at baseline and gestational weight gain during the first, second, and third trimesters. Fatty acid recognition was carried out with the aid of gas chromatography. Single nucleotide polymorphisms (SNPs) were genotyped using real-time PCR. Statistical analyses included Structural Equation Modelling. A direct effect of FADS1 and FADS2 gene polymorphisms on gestational weight was observed; however, only the SNP rs174575 (FADS2) showed a significant positive direct effect on weight over the course of the pregnancy (0.106; p = 0.016). In terms of the influence of SNPs on plasma levels of PUFAs, it was found that SNP rs174561 (FADS1) and SNP rs174575 (FADS2) showed direct adverse effects on plasma concentrations of ω-3 (eicosapentaenoic acid and alpha-linoleic acid), and only SNP rs174575 had positive direct effects on plasma levels of ARA and the ARA/LA (arachidonic acid/linoleic acid) ratio, ω-6 products, while the SNP rs3834458 (FADS2) had an adverse effect on plasma concentrations of EPA, leading to its increase. Pregnant women who were heterozygous and homozygous for the minor allele of the SNP rs3834458 (FADS2), on the other hand, showed larger concentrations of series ω-3 substrates, which indicates a protective factor for women’s health.
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Tian H, Yu H, Lin Y, Li Y, Xu W, Chen Y, Liu G, Xie L. Association between FADS Gene Expression and Polyunsaturated Fatty Acids in Breast Milk. Nutrients 2022; 14:nu14030457. [PMID: 35276817 PMCID: PMC8839397 DOI: 10.3390/nu14030457] [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: 12/31/2021] [Revised: 01/15/2022] [Accepted: 01/17/2022] [Indexed: 01/27/2023] Open
Abstract
Polyunsaturated fatty acid (PUFA) in breast milk provides physiological benefits for offspring and is closely related to endogenous biosynthesis in lactating women. Few studies have addressed the association between fatty acid desaturase (FADS) gene expression patterns and fatty acids in breast milk. This research aimed to explore the differences in PUFA levels among breast milk groups with different levels of FADS gene expression and provide a scientific basis for precision nutrition strategies. A total of 50 healthy women 42–45 days postpartum were included in this study. A basic information questionnaire and breast milk samples were collected. Eight types of PUFA were detected, and RNA was extracted from breast milk. The transcription level of the FADS gene was detected using real-time quantitative PCR. Significant differences in the content of gamma-linolenic acid and eicosatrienoic acid (C20:3n6) were found in breast milk among FADS1 gene transcription groups (p = 0.009, p = 0.042, respectively). No significant differences in PUFA were found among the FADS2 and FADS3 gene expression groups. The results demonstrated that n-6 PUFA was associated with the mRNA expression levels of the FADS1 gene. They are of great significance in developing new methods and diets to optimize infant feeding using breast milk.
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Affiliation(s)
- Huimin Tian
- Department of Pediatric Nursing, School of Nursing, Jilin University, Changchun 130021, China;
| | - Haitao Yu
- Department of Nutrition and Food Hygiene, School of Public Health, Jilin University, Changchun 130021, China; (H.Y.); (Y.L.); (W.X.); (Y.C.); (G.L.)
| | - Yiqi Lin
- Jilin Women and Children Health Hospital, Changchun 130061, China;
| | - Yueting Li
- Department of Nutrition and Food Hygiene, School of Public Health, Jilin University, Changchun 130021, China; (H.Y.); (Y.L.); (W.X.); (Y.C.); (G.L.)
| | - Wenhui Xu
- Department of Nutrition and Food Hygiene, School of Public Health, Jilin University, Changchun 130021, China; (H.Y.); (Y.L.); (W.X.); (Y.C.); (G.L.)
| | - Yiru Chen
- Department of Nutrition and Food Hygiene, School of Public Health, Jilin University, Changchun 130021, China; (H.Y.); (Y.L.); (W.X.); (Y.C.); (G.L.)
| | - Guoliang Liu
- Department of Nutrition and Food Hygiene, School of Public Health, Jilin University, Changchun 130021, China; (H.Y.); (Y.L.); (W.X.); (Y.C.); (G.L.)
| | - Lin Xie
- Department of Nutrition and Food Hygiene, School of Public Health, Jilin University, Changchun 130021, China; (H.Y.); (Y.L.); (W.X.); (Y.C.); (G.L.)
- Correspondence: ; Tel.: +86-431-8561-9455
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11
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Kytikova OY, Novgorodtseva TP, Denisenko YK, Antonyuk MV, Gvozdenko TA. Associations Of Delta Fatty Acid Desaturase Gene Polymorphisms With Lipid Metabolism Disorders. RUSSIAN OPEN MEDICAL JOURNAL 2021. [DOI: 10.15275/rusomj.2021.0403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Overweight, obesity, type 2 diabetes mellitus, metabolic syndrome, cardiovascular diseases, and non-alcoholic fatty liver disease are common chronic ailments associated with lipid metabolism disorders. One of the mechanisms of these disorders is related to the deficiency and/or change in the balance of essential fatty acids (FAs). At the same time, the provision of ω3 and ω6 polyunsaturated fatty acids (PUFAs) depends, besides sufficient dietary intake, on efficiency of their endogenous biosynthesis by desaturation and elongation processes regulated by FA elongases and FA desaturases. Desaturases are encoded by PUFA desaturase genes (FADSs): FADS1 and FADS2. Alteration of FA desaturase activity and single nucleotide polymorphisms (SNPs) in the FADS1 and FADS2 gene cluster are associated with lipid metabolism dysfunction and may affect the pathogenesis of lipid-related diseases. People of different ages, from different ethnic backgrounds and countries may exhibit varying degrees of response to dietary supplements of ω3 and ω6 PUFAs. The study of the relationship between lipid metabolism disorders and genetic factors controlling FA metabolism is an important research area since the health effects of alimentary ω3 and ω6 PUFAs can depend on genetic variants of the FADS genes. This review summarizes the literature data on the association of FADS gene polymorphisms with lipid metabolism disorders and their role in the development of chronic non-communicable pathologies associated with changes in lipid metabolism.
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Affiliation(s)
- Oksana Yu. Kytikova
- Research Institute of Medical Climatology and Rehabilitative Treatment, Vladivostok, Russia
| | | | - Yulia K. Denisenko
- Research Institute of Medical Climatology and Rehabilitative Treatment, Vladivostok, Russia
| | - Marina V. Antonyuk
- Research Institute of Medical Climatology and Rehabilitative Treatment, Vladivostok, Russia
| | - Tatyana A. Gvozdenko
- Research Institute of Medical Climatology and Rehabilitative Treatment, Vladivostok, Russia
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12
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Maternal and child fatty acid desaturase genotype as determinants of cord blood long-chain PUFA (LCPUFA) concentrations in the Seychelles Child Development Study. Br J Nutr 2021; 126:1687-1697. [PMID: 33526157 DOI: 10.1017/s0007114521000441] [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: 11/07/2022]
Abstract
Optimal maternal long-chain PUFA (LCPUFA) status is essential for the developing fetus. The fatty acid desaturase (FADS) genes are involved in the endogenous synthesis of LCPUFA. The minor allele of various FADS SNP have been associated with increased maternal concentrations of the precursors linoleic acid (LA) and α-linolenic acid (ALA), and lower concentrations of arachidonic acid (AA) and DHA. There is limited research on the influence of FADS genotype on cord PUFA status. The current study investigated the influence of maternal and child genetic variation in FADS genotype on cord blood PUFA status in a high fish-eating cohort. Cord blood samples (n 1088) collected from the Seychelles Child Development Study (SCDS) Nutrition Cohort 2 (NC2) were analysed for total serum PUFA. Of those with cord PUFA data available, maternal (n 1062) and child (n 916), FADS1 (rs174537 and rs174561), FADS2 (rs174575), and FADS1-FADS2 (rs3834458) were determined. Regression analysis determined that maternal minor allele homozygosity was associated with lower cord blood concentrations of DHA and the sum of EPA + DHA. Lower cord blood AA concentrations were observed in children who were minor allele homozygous for rs3834458 (β = 0·075; P = 0·037). Children who were minor allele carriers for rs174537, rs174561, rs174575 and rs3834458 had a lower cord blood AA:LA ratio (P < 0·05 for all). Both maternal and child FADS genotype were associated with cord LCPUFA concentrations, and therefore, the influence of FADS genotype was observed despite the high intake of preformed dietary LCPUFA from fish in this population.
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13
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Abstract
In the present study, we analysed the effects of SNP rs174547 (T/C) in the fatty acid desaturase 1 (FADS1) gene on long-chain PUFA levels. Four databases were searched to retrieve related literature with keywords such as fatty acid (FA), SNP, FADS1 and rs174547. A meta-analysis of the data was performed using Stata12.0 software, including summary statistics, test for heterogeneity, evaluation of publication bias, subgroup analysis and sensitivity analysis. The associations between rs174547 in FADS1 and seven types of FA, and Δ-5 (D5D) and Δ-6 fatty acid desaturase (D6D) activity were assessed based on the pooled results from eleven papers. A total of 3713 individuals (1529 TT and 2184 TC + CC) were included. The results demonstrated that minor C allele carriers of rs174547 had higher linoleic acid (LA; P < 0·001) and α-linolenic acid (P = 0·020) levels, lower γ-linolenic acid (GLA; P = 0·001) and arachidonic acid (P = 0·024) levels, and lower D5D (P = 0·005) and D6D (P = 0·004) activities than the TT genotype group. Stratification analysis showed that minor C allele carriers of rs174547 had higher LA and lower GLA levels and lower D6D activities in plasma (LA, P < 0·001; GLA, P < 0·001; D6D activity, P < 0·001) samples and in Asian populations (LA, P < 0·001; GLA, P = 0·001; D6D activity, P = 0·001) than the TT genotype group. In conclusion, minor C allele carriers of the SNP rs174547 were associated with decreased activity of D5D and D6D.
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14
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Conway MC, McSorley EM, Mulhern MS, Strain JJ, van Wijngaarden E, Yeates AJ. Influence of fatty acid desaturase (FADS) genotype on maternal and child polyunsaturated fatty acids (PUFA) status and child health outcomes: a systematic review. Nutr Rev 2020; 78:627-646. [PMID: 31943072 DOI: 10.1093/nutrit/nuz086] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
CONTEXT Polyunsaturated fatty acids (PUFA) are important during pregnancy for fetal development and child health outcomes. The fatty acid desaturase (FADS) genes also influence PUFA status, with the FADS genes controlling how much product (eg, arachidonic acid, eicosapentaenoic acid, and docosahexaenoic acid) is metabolized from the precursor molecules linoleic acid and α-linolenic acid. OBJECTIVE The current review discusses the influence of FADS genotype on PUFA status of pregnant women, breast milk, and children, and also how FADS may influence child health outcomes. DATA SOURCES The Ovid Medline, Scopus, Embase, Cochrane Library, CINAHL Plus, PubMed and Web of Science databases were searched from their inception to September 2018. DATA EXTRACTION Eligible studies reported FADS genotype and blood concentrations of PUFA during pregnancy, in childhood, breast milk concentrations of PUFA or child health outcomes. DATA ANALYSIS In pregnant and lactating women, minor allele carriers have higher concentrations of linoleic acid and α-linolenic acid, and lower concentrations of arachidonic acid, in blood and breast milk, respectively. In children, FADS genotype influences PUFA status in the same manner and may impact child outcomes such as cognition and allergies; however, the direction of effects for the evidence to date is not consistent. CONCLUSION Further studies are needed to further investigate associations between FADS and outcomes, as well as the diet-gene interaction.
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Affiliation(s)
- Marie C Conway
- Nutrition Innovation Centre for Food and Health (NICHE), Ulster University, Coleraine, Northern Ireland. E. van Wijngaarden is with the School of Medicine and Dentistry, University of Rochester, Rochester, New York, USA
| | - Emeir M McSorley
- Nutrition Innovation Centre for Food and Health (NICHE), Ulster University, Coleraine, Northern Ireland. E. van Wijngaarden is with the School of Medicine and Dentistry, University of Rochester, Rochester, New York, USA
| | - Maria S Mulhern
- Nutrition Innovation Centre for Food and Health (NICHE), Ulster University, Coleraine, Northern Ireland. E. van Wijngaarden is with the School of Medicine and Dentistry, University of Rochester, Rochester, New York, USA
| | - J J Strain
- Nutrition Innovation Centre for Food and Health (NICHE), Ulster University, Coleraine, Northern Ireland. E. van Wijngaarden is with the School of Medicine and Dentistry, University of Rochester, Rochester, New York, USA
| | - Edwin van Wijngaarden
- Nutrition Innovation Centre for Food and Health (NICHE), Ulster University, Coleraine, Northern Ireland. E. van Wijngaarden is with the School of Medicine and Dentistry, University of Rochester, Rochester, New York, USA
| | - Alison J Yeates
- Nutrition Innovation Centre for Food and Health (NICHE), Ulster University, Coleraine, Northern Ireland. E. van Wijngaarden is with the School of Medicine and Dentistry, University of Rochester, Rochester, New York, USA
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15
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Vargas-Bello-Pérez E, Cancino-Padilla N, Geldsetzer-Mendoza C, Morales MS, Leskinen H, Garnsworthy PC, Loor JJ, Romero J. Effects of dietary polyunsaturated fatty acid sources on expression of lipid-related genes in bovine milk somatic cells. Sci Rep 2020; 10:14850. [PMID: 32908177 PMCID: PMC7481231 DOI: 10.1038/s41598-020-71930-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 08/17/2020] [Indexed: 12/29/2022] Open
Abstract
The objective of this study was to compare the effect of contrasting sources of dietary n-6 and n-3 PUFA on expression of genes related to lipid metabolism in dairy cows. During 63 days, fifteen lactating cows were assigned to a control or basal diet containing no added lipid (n = 5 cows); and treatment diets supplemented with SO (n = 5 cows; unrefined soybean oil; 2.9% of DM) or FO (n = 5 cows; fish oil manufactured from salmon oil; 2.9% of DM). Plasma for fatty acid (FA) analysis and milk somatic cells (MSC) were obtained from all cows at the beginning of the study (day 0) and on days 21, 42 and 63. Plasma was used to determine FA transport dynamics. Compared with control and FO, plasma from SO had increased contents of C18:1 cis-9, C18:1 trans-11, C18:2 cis-9, trans-11 and total monounsaturated FA. On the other hand, compared with control and SO, FO increased plasma contents of C20:3 n-3, C20:3 n-6, C20:4 n-6, C20:5 n-3, C22:6 n-3 and total polyunsaturated FA. Moreover, plasma C18:3 n-3 and C20:5 n-3 increased over time for all diets. Compared with control, SO downregulated ACACA, INSIG1, and DGAT1, whereas FO downregulated ACACA, PPARGC1, LPIN1 and FABP3 on day 63, in MSC. At different time-points, SO and FO downregulated genes related to synthesis and intracellular transport of FA, synthesis of triglycerides, and transcription factors.
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Affiliation(s)
- Einar Vargas-Bello-Pérez
- Faculty of Health and Medical Sciences, Department of Veterinary and Animal Sciences, University of Copenhagen, Grønnegårdsvej 3, 1870, Frederiksberg C, Denmark. .,Departamento de Ciencias Animales, Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, Casilla 306., Santiago, 6904411, Chile.
| | - Nathaly Cancino-Padilla
- Departamento de Ciencias Animales, Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, Casilla 306., Santiago, 6904411, Chile
| | - Carolina Geldsetzer-Mendoza
- Departamento de Ciencias Animales, Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, Casilla 306., Santiago, 6904411, Chile
| | - María Sol Morales
- Departamento de Fomento de la Producción Animal, Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Av. Santa Rosa 11735, La Pintana, Santiago, Chile
| | - Heidi Leskinen
- Milk Production, Production Systems, Natural Resources Institute Finland (Luke), 31600, Jokioinen, Finland
| | - Philip C Garnsworthy
- School of Biosciences, The University of Nottingham, Sutton Bonington Campus, Loughborough, LE12 5RD, UK
| | - Juan J Loor
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Mammalian NutriPhysioGenomics, Urbana, 61801, USA
| | - Jaime Romero
- Laboratorio de Biotecnología en Alimentos, Unidad de Alimentos, Instituto de Nutrición y Tecnología de los Alimentos, Universidad de Chile, Avda. El Líbano 5524, Macul, 7830490, Santiago, Chile
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16
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Golan Y, Assaraf YG. Genetic and Physiological Factors Affecting Human Milk Production and Composition. Nutrients 2020; 12:E1500. [PMID: 32455695 PMCID: PMC7284811 DOI: 10.3390/nu12051500] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 05/17/2020] [Accepted: 05/19/2020] [Indexed: 02/07/2023] Open
Abstract
Human milk is considered the optimal nutrition for infants as it provides additional attributes other than nutritional support for the infant and contributes to the mother's health as well. Although breastfeeding is the most natural modality to feed infants, nowadays, many mothers complain about breastfeeding difficulties. In addition to environmental factors that may influence lactation outcomes including maternal nutrition status, partner's support, stress, and latching ability of the infant, intrinsic factors such as maternal genetics may also affect the quantitative production and qualitative content of human milk. These genetic factors, which may largely affect the infant's growth and development, as well as the mother's breastfeeding experience, are the subject of the present review. We specifically describe genetic variations that were shown to affect quantitative human milk supply and/or its qualitative content. We further discuss possible implications and methods for diagnosis as well as treatment modalities. Although cases of nutrient-deficient human milk are considered rare, in some ethnic groups, genetic variations that affect human milk content are more abundant, and they should receive greater attention for diagnosis and treatment when necessary. From a future perspective, early genetic diagnosis should be directed to target and treat breastfeeding difficulties in real time.
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Affiliation(s)
| | - Yehuda G. Assaraf
- The Fred Wyszkowski Cancer Research Laboratory, Department of Biology, Technion-Israel Institute of Technology, Haifa 3200003, Israel;
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17
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Morton SU, Vyas R, Gagoski B, Vu C, Litt J, Larsen RJ, Kuchan MJ, Lasekan JB, Sutton BP, Grant PE, Ou Y. Maternal Dietary Intake of Omega-3 Fatty Acids Correlates Positively with Regional Brain Volumes in 1-Month-Old Term Infants. Cereb Cortex 2020; 30:2057-2069. [PMID: 31711132 PMCID: PMC8355466 DOI: 10.1093/cercor/bhz222] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 07/31/2019] [Accepted: 08/22/2019] [Indexed: 01/05/2023] Open
Abstract
Maternal nutrition is an important factor for infant neurodevelopment. However, prior magnetic resonance imaging (MRI) studies on maternal nutrients and infant brain have focused mostly on preterm infants or on few specific nutrients and few specific brain regions. We present a first study in term-born infants, comprehensively correlating 73 maternal nutrients with infant brain morphometry at the regional (61 regions) and voxel (over 300 000 voxel) levels. Both maternal nutrition intake diaries and infant MRI were collected at 1 month of life (0.9 ± 0.5 months) for 92 term-born infants (among them, 54 infants were purely breastfed and 19 were breastfed most of the time). Intake of nutrients was assessed via standardized food frequency questionnaire. No nutrient was significantly correlated with any of the volumes of the 61 autosegmented brain regions. However, increased volumes within subregions of the frontal cortex and corpus callosum at the voxel level were positively correlated with maternal intake of omega-3 fatty acids, retinol (vitamin A) and vitamin B12, both with and without correction for postmenstrual age and sex (P < 0.05, q < 0.05 after false discovery rate correction). Omega-3 fatty acids remained significantly correlated with infant brain volumes after subsetting to the 54 infants who were exclusively breastfed, but retinol and vitamin B12 did not. This provides an impetus for future larger studies to better characterize the effect size of dietary variation and correlation with neurodevelopmental outcomes, which can lead to improved nutritional guidance during pregnancy and lactation.
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Affiliation(s)
- Sarah U Morton
- Division of Newborn Medicine, Boston Children’s Hospital, Boston, MA 02115, USA
| | - Rutvi Vyas
- Division of Newborn Medicine, Boston Children’s Hospital, Boston, MA 02115, USA
- Fetal-Neonatal Neuroimaging and Developmental Science Center, Boston Children’s Hospital, Boston, MA 02115, USA
| | - Borjan Gagoski
- Fetal-Neonatal Neuroimaging and Developmental Science Center, Boston Children’s Hospital, Boston, MA 02115, USA
- Department of Radiology, Boston Children’s Hospital, Boston, MA 02115, USA
| | - Catherine Vu
- Fetal-Neonatal Neuroimaging and Developmental Science Center, Boston Children’s Hospital, Boston, MA 02115, USA
| | - Jonathan Litt
- Department of Neonatology, Beth Israel Deaconess Medical Center, Boston, MA 02115, USA
| | - Ryan J Larsen
- Beckman Institute, University of Illinois at Urbana—Champaign, Urbana, IL 61801, USA
| | | | | | - Brad P Sutton
- Beckman Institute, University of Illinois at Urbana—Champaign, Urbana, IL 61801, USA
- Department of Bioengineering, University of Illinois at Urbana—Champaign, Urbana, IL 61801, USA
| | - P Ellen Grant
- Division of Newborn Medicine, Boston Children’s Hospital, Boston, MA 02115, USA
- Fetal-Neonatal Neuroimaging and Developmental Science Center, Boston Children’s Hospital, Boston, MA 02115, USA
- Department of Radiology, Boston Children’s Hospital, Boston, MA 02115, USA
| | - Yangming Ou
- Division of Newborn Medicine, Boston Children’s Hospital, Boston, MA 02115, USA
- Fetal-Neonatal Neuroimaging and Developmental Science Center, Boston Children’s Hospital, Boston, MA 02115, USA
- Department of Radiology, Boston Children’s Hospital, Boston, MA 02115, USA
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18
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Wu WC, Lin HC, Liao WL, Tsai YY, Chen AC, Chen HC, Lin HY, Liao LN, Chao PM. FADS Genetic Variants in Taiwanese Modify Association of DHA Intake and Its Proportions in Human Milk. Nutrients 2020; 12:nu12020543. [PMID: 32093185 PMCID: PMC7071481 DOI: 10.3390/nu12020543] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 02/14/2020] [Accepted: 02/17/2020] [Indexed: 12/13/2022] Open
Abstract
Our objective was to determine how docosahexaenoic acid (DHA) proportions in human milk are modulated by maternal FADS gene variants and dietary intake in Taiwanese women. Inclusion criteria included being healthy, 20–40 y old, having had a full-term baby that they intended to breast feed for at least 1 month, and willingness to participate in this study. Intake of DHA was assessed by food frequency questionnaire and fatty acids were analyzed in human milk samples collected 3–4 weeks postpartum. Based on multiple linear regression of data from 164 mothers that completed this study, there was 0.28% (FA%) reduction in milk DHA in high versus low genetic risk (stratified by whether minor allele numbers were ≥ 3 in rs1535 and rs174448) and 0.45% reduction in low versus high intake (stratified by whether DHA intake reached 200 mg/d). There was a significant gene–diet interaction; mothers with low genetic risk only had high milk DHA proportions with high DHA intake, whereas for mothers with high genetic risk, dietary effects were quite limited. Therefore, for FADS single nucleotide polymorphism in Taiwanese women, increasing DHA intake did not correct low milk DHA proportions in those with a high-risk genotype. Diet only conferred benefits to those with a low-risk genotype. Trial registration: This trial was retrospectively registered (Feb 12, 2019) in ClinicalTrials.gov (No. NCT03842891, https://clinicaltrials.gov/ct2/show/NCT03842891).
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Affiliation(s)
- Wen-Chieh Wu
- PhD Program for Health Science and Industry, China Medical University, Taichung 404, Taiwan;
| | - Hung-Chih Lin
- Division of Neonatology, Children’s Hospital, China Medical University, Taichung 404, Taiwan; (H.-C.L.); (H.-Y.L.)
- Asia University Hospital, Asia University, Taichung 413, Taiwan
- School of Chinese Medicine, China Medical University, Taichung 404, Taiwan
| | - Wen-Ling Liao
- Graduate Institute of Integrated Medicine, China Medical University, Taichung 404, Taiwan;
- Center for Personalized Medicine, China Medical University Hospital, Taichung 404, Taiwan
| | | | - An-Chyi Chen
- Division of Pediatric Hepatology and Gastroenterology, Children’s Hospital, China Medical University, Taichung 404, Taiwan;
- College of Medicine, China Medical University, Taichung 404, Taiwan
| | | | - Hsiang-Yu Lin
- Division of Neonatology, Children’s Hospital, China Medical University, Taichung 404, Taiwan; (H.-C.L.); (H.-Y.L.)
- College of Medicine, China Medical University, Taichung 404, Taiwan
| | - Li-Na Liao
- Department of Public Health, China Medical University, Taichung 404, Taiwan
- Correspondence: (L.-N.L.); (P.-M.C.); Tel.: (+886)-4-22053366 (ext. 7509) (P.-M.C.); Fax: (+886)-4-22062891 (P.-M.C.)
| | - Pei-Min Chao
- PhD Program for Health Science and Industry, China Medical University, Taichung 404, Taiwan;
- Department of Nutrition, China Medical University, Taichung 404, Taiwan
- Correspondence: (L.-N.L.); (P.-M.C.); Tel.: (+886)-4-22053366 (ext. 7509) (P.-M.C.); Fax: (+886)-4-22062891 (P.-M.C.)
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19
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Czumaj A, Śledziński T. Biological Role of Unsaturated Fatty Acid Desaturases in Health and Disease. Nutrients 2020; 12:E356. [PMID: 32013225 PMCID: PMC7071289 DOI: 10.3390/nu12020356] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 01/20/2020] [Accepted: 01/28/2020] [Indexed: 12/21/2022] Open
Abstract
Polyunsaturated fatty acids (PUFAs) are considered one of the most important components of cells that influence normal development and function of many organisms, both eukaryotes and prokaryotes. Unsaturated fatty acid desaturases play a crucial role in the synthesis of PUFAs, inserting additional unsaturated bonds into the acyl chain. The level of expression and activity of different types of desaturases determines profiles of PUFAs. It is well recognized that qualitative and quantitative changes in the PUFA profile, resulting from alterations in the expression and activity of fatty acid desaturases, are associated with many pathological conditions. Understanding of underlying mechanisms of fatty acid desaturase activity and their functional modification will facilitate the development of novel therapeutic strategies in diseases associated with qualitative and quantitative disorders of PUFA.
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Affiliation(s)
- Aleksandra Czumaj
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Medical University of Gdansk, Dębinki, 80-211 Gdansk, Poland;
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20
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Chen X, Wu Y, Zhang Z, Zheng X, Wang Y, Yu M, Liu G. Effects of the rs3834458 Single Nucleotide Polymorphism in FADS2 on Levels of n-3 Long-chain Polyunsaturated Fatty Acids: A Meta-analysis. Prostaglandins Leukot Essent Fatty Acids 2019; 150:1-6. [PMID: 31487670 DOI: 10.1016/j.plefa.2019.08.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 08/17/2019] [Accepted: 08/23/2019] [Indexed: 01/24/2023]
Abstract
OBJECTIVES Evaluate the effects of the single nucleotide polymorphism (SNP) rs3834458 in the fatty acid desaturase 2 gene (FADS2) on n-3 long-chain polyunsaturated fatty acid (LC-PUFA) levels using statistical meta-analysis. METHODS Literatures pertaining to the relationship between the SNP rs3834458 and LC-PUFA were retrieved from three electronic databases. Original information was analyzed using RevMan 5.3, including single statistics, test for heterogeneity, summary statistics and evaluation of publication bias. RESULTS In total, five pieces of literature were retrieved and divided into seven trials. We observed that the minor allele (Tdel+deldel) carriers of rs3834458 had higher linolenic acid levels (P < 0.00001) and lower eicosapentaenoic acid (P < 0.00001), docosapentenoic acid (P = 0.005) and docosahexaenoic acid (P < 0.00001) levels compared to those of carrying major allele homozygote (TT). CONCLUSION This meta-analysis indicates that minor allele of rs3834458 in FADS2 may result in lower activity of delta-6 desaturase leading to higher ALA and lower EPA, DPA and DHA in blood.
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Affiliation(s)
- Xueyan Chen
- School of Public Health, Jilin University, Chang Chun, Jilin 130021, China; Children's Hospital of Changchun, Changchun, Jilin 130051, China
| | - Yixia Wu
- School of Public Health, Jilin University, Chang Chun, Jilin 130021, China
| | - Zilin Zhang
- School of Mathematics, Jilin University, Changchun, Jilin 130012, China
| | - Xiaolei Zheng
- School of Public Health, Jilin University, Chang Chun, Jilin 130021, China
| | - Yan Wang
- School of Public Health, Jilin University, Chang Chun, Jilin 130021, China
| | - Miao Yu
- School of Public Health, Jilin University, Chang Chun, Jilin 130021, China
| | - Guoliang Liu
- School of Public Health, Jilin University, Chang Chun, Jilin 130021, China.
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21
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Proskura WS, Liput M, Zaborski D, Sobek Z, Yu YH, Cheng YH, Dybus A. The effect of polymorphism in the FADS2 gene on the fatty acid composition of bovine milk. Arch Anim Breed 2019; 62:547-555. [PMID: 31807666 PMCID: PMC6852874 DOI: 10.5194/aab-62-547-2019] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 08/21/2019] [Indexed: 01/23/2023] Open
Abstract
Polyunsaturated fatty acids (PUFAs) play a role in a wide
variety of physiological processes. They are produced by a series of
desaturation and elongation reactions. Δ-6-desaturase is a
membrane-bound enzyme that catalyzes the conversion of α-linolenic acid
(C18:3n-3) and linoleic acid (C18:2n-6) to stearidonic acid (18:4n-3) and
γ-linolenic acid (18:3n-6). It is encoded by the FADS2 gene located on bovine
chromosome 29. The aim of this study was to identify a single nucleotide
polymorphism in the FADS2 gene and to determine possible associations with milk
fatty acid composition in two breeds of dairy cattle, i.e., Jersey and Polish
Holstein-Friesian. Direct DNA sequencing revealed the presence of an A-to-G
substitution in intron 3 of the FADS2 gene (rs209202414). Both populations were
genotyped with an appropriate PCR-RFLP assay. The following genotype
distributions were observed: for Jerseys, AA = 0.24, AG = 0.63, and GG = 0.13; for
Polish Holstein-Friesians, AA = 0.17, AG = 0.40, and GG = 0.43. In Jerseys,
statistically significant relationships were found between the FASD2 genotypes
and the following milk fatty acids: lauric (P=0.0486), behenic (P=0.0199),
lignoceric (P=0.0209), oleic (P=0.0386), eicosatrienoic (P=0.0113), and
docosadienoic (P=0.0181). In Polish Holstein-Friesian cows, significant
associations were observed for erucic (P=0.0460) and docosahexaenoic (P=0.0469)
acids. The study indicated the A-to-G substitution (rs209202414) in the bovine
FADS2 gene as a potential genetic marker for fatty acid composition in cattle
milk.
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Affiliation(s)
- Witold Stanisław Proskura
- Laboratory of Molecular Cytogenetics, Department of Ruminants Science, West Pomeranian University of Technology, Szczecin 71-270, Poland
| | - Michał Liput
- Laboratory of Molecular Cytogenetics, Department of Ruminants Science, West Pomeranian University of Technology, Szczecin 71-270, Poland
| | - Daniel Zaborski
- Laboratory of Biostatistics, Department of Ruminants Science, West Pomeranian University of Technology, Szczecin 71-270, Poland
| | - Zbigniew Sobek
- Department of Genetics and Animal Breeding, Poznań University of Life Sciences, Poznań 60-637, Poland
| | - Yu-Hsiang Yu
- Department of Biotechnology and Animal Science, National Ilan University, I-Lan 260, Taiwan
| | - Yeong-Hsiang Cheng
- Department of Biotechnology and Animal Science, National Ilan University, I-Lan 260, Taiwan
| | - Andrzej Dybus
- Laboratory of Molecular Cytogenetics, Department of Ruminants Science, West Pomeranian University of Technology, Szczecin 71-270, Poland
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22
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Koletzko B, Reischl E, Tanjung C, Gonzalez-Casanova I, Ramakrishnan U, Meldrum S, Simmer K, Heinrich J, Demmelmair H. FADS1 and FADS2 Polymorphisms Modulate Fatty Acid Metabolism and Dietary Impact on Health. Annu Rev Nutr 2019; 39:21-44. [PMID: 31433740 DOI: 10.1146/annurev-nutr-082018-124250] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Variants in the FADS gene cluster modify the activity of polyunsaturated fatty acid (PUFA) desaturation and the lipid composition in human blood and tissue. FADS variants have been associated with plasma lipid concentrations, risk of cardiovascular diseases, overweight, eczema, pregnancy outcomes, and cognitive function. Studies on variations in the FADS genecluster provided some of the first examples for marked gene-diet interactions in modulating complex phenotypes, such as eczema, asthma, and cognition. Genotype distribution differs markedly among ethnicities, apparently reflecting an evolutionary advantage of genotypes enabling active long-chain PUFA synthesis when the introduction of agriculture provided diets rich in linoleic acid but with little arachidonic and eicosapentaenoic acids. Discovering differential effects of PUFA supply that depend on variation of FADS genotypes could open new opportunities for developing precision nutrition strategies based either on an individual's genotype or on genotype distributions in specific populations.
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Affiliation(s)
- Berthold Koletzko
- Dr. von Hauner Children's Hospital, University of Munich Medical Center, Ludwig-Maximilians-Universität München, 80337 Munich, Germany;
| | - Eva Reischl
- Research Unit of Molecular Epidemiology, Institute of Epidemiology, Helmholtz Zentrum München (German Research Center for Environmental Health), 85764 Neuherberg, Germany
| | - Conny Tanjung
- Jakarta and Indonesian Medical Education and Research Institute, Hubert Pantai Indah Kapuk Hospital, Jakarta 14460, Indonesia
| | - Ines Gonzalez-Casanova
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia 30322, USA
| | - Usha Ramakrishnan
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia 30322, USA
| | - Suzanne Meldrum
- Centre for Neonatal Research and Education, School of Medicine, University of Western Australia, Perth, Western Australia 6009, Australia
| | - Karen Simmer
- Centre for Neonatal Research and Education, School of Medicine, University of Western Australia, Perth, Western Australia 6009, Australia
| | - Joachim Heinrich
- Institute and Clinic for Occupational, Social and Environmental Medicine, Comprehensive Pneumology Center (CPC) Munich, Ludwig-Maximilians-Universität München, 80337 Munich, Germany
- Melbourne School of Population and Global Health, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Hans Demmelmair
- Dr. von Hauner Children's Hospital, University of Munich Medical Center, Ludwig-Maximilians-Universität München, 80337 Munich, Germany;
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23
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Wu霞吴义 Y, Wang 烟王 Y, Tian敏田慧 H, Lu逯通 T, Yu苗于 M, Xu慧徐文 W, Liu良刘国 G, Xie林谢 L. DHA intake interacts with ELOVL2 and ELOVL5 genetic variants to influence polyunsaturated fatty acids in human milk. J Lipid Res 2019; 60:1043-1049. [PMID: 30914501 PMCID: PMC6495163 DOI: 10.1194/jlr.m090951] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Revised: 03/25/2019] [Indexed: 11/20/2022] Open
Abstract
Endogenous synthesis of PUFAs is mediated by genes controlling fatty acid elongases 2 and 5 (ELOVL2 and ELOVL5) and by exogenous DHA intake. Associations between elongases and PUFA levels probably involve genetic variants of ELOVL and changes in DHA intake, but data about their combined effect on PUFA levels are sparse. We hypothesized that each factor would directly affect PUFAs and that interactions between haplotypes and DHA intake would influence PUFAs. We explored four levels of DHA intake in pregnant Chinese Han women and 10 SNPs in the ELOVL genes to determine associations with PUFAs in breast milk. The SNP rs3798713 and 3-SNP haplotype (rs2281591, rs12332786, and rs3798713) in ELOVL2 were associated with linoleic acid (LA) concentrations. However, carriers of the 3-SNP haplotype with higher DHA intake (second quartile: 14.58-43.15 mg/day) had higher concentrations of LA, arachidonic acid, EPA, and DHA compared with the interaction baseline. In ELOVL5, five SNPs (rs2294867, rs9357760, rs2397142, rs209512, and rs12207094) correlated with PUFA changes. Compared with those who had the 5-SNP haplotype C-A-C-G-A and low DHA intake (<14.58 mg/day), carriers with other haplotypes (A-A-C-A-A or C-A-C-A-A) and high DHA intake (≥118.82 mg/day) had increased EPA levels after adjustments for age and BMI. This study showed that maternal genetic variants in ELOVL2 and ELOVL5 were associated with PUFA levels in breast milk and that the combination of SNP haplotypes and higher DHA intake increased PUFA concentrations.
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Affiliation(s)
- Yixia Wu霞吴义
- Department of Nutrition and Food Hygiene Jilin University, Changchun, 130021 China
| | - Yan Wang 烟王
- Department of Nutrition and Food Hygiene Jilin University, Changchun, 130021 China
| | - Huimin Tian敏田慧
- Department of Nutrition and Food Hygiene Jilin University, Changchun, 130021 China
| | - Tong Lu逯通
- Department of Nutrition and Food Hygiene Jilin University, Changchun, 130021 China
| | - Miao Yu苗于
- Department of Nutrition and Food Hygiene Jilin University, Changchun, 130021 China
| | - Wenhui Xu慧徐文
- Department of Nutrition and Food Hygiene Jilin University, Changchun, 130021 China
| | - Guoliang Liu良刘国
- Experimental Center of Prevention School of Public Health, Jilin University, Changchun, 130021 China
| | - Lin Xie林谢
- Department of Nutrition and Food Hygiene Jilin University, Changchun, 130021 China.
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24
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The Effect of an Infant Formula Supplemented with AA and DHA on Fatty Acid Levels of Infants with Different FADS Genotypes: The COGNIS Study. Nutrients 2019; 11:nu11030602. [PMID: 30871048 PMCID: PMC6470942 DOI: 10.3390/nu11030602] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 03/05/2019] [Indexed: 01/01/2023] Open
Abstract
Polymorphisms in the fatty acid desaturase (FADS) genes influence the arachidonic (AA) and docosahexaenoic (DHA) acid concentrations (crucial in early life). Infants with specific genotypes may require different amounts of these fatty acids (FAs) to maintain an adequate status. The aim of this study was to determine the effect of an infant formula supplemented with AA and DHA on FAs of infants with different FADS genotypes. In total, 176 infants from the COGNIS study were randomly allocated to the Standard Formula (SF; n = 61) or the Experimental Formula (EF; n = 70) group, the latter supplemented with AA and DHA. Breastfed infants were added as a reference group (BF; n = 45). FAs and FADS polymorphisms were analyzed from cheek cells collected at 3 months of age. FADS minor allele carriership in formula fed infants, especially those supplemented, was associated with a declined desaturase activity and lower AA and DHA levels. Breastfed infants were not affected, possibly to the high content of AA and DHA in breast milk. The supplementation increased AA and DHA levels, but mostly in major allele carriers. In conclusion, infant FADS genotype could contribute to narrow the gap of AA and DHA concentrations between breastfed and formula fed infants.
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25
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Nettleton JA, Salem N. International Society for the Study of Fatty Acids and Lipids 2018 Symposium: Arachidonic and Docosahexaenoic Acids in Infant Development. ANNALS OF NUTRITION AND METABOLISM 2019; 74:83-91. [PMID: 30616237 DOI: 10.1159/000495906] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 11/30/2018] [Indexed: 12/16/2022]
Affiliation(s)
| | - Norman Salem
- DSM Nutritional Products, Inc, Columbia, Maryland, USA
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26
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Tian HM, Wu YX, Lin YQ, Chen XY, Yu M, Lu T, Xie L. Dietary patterns affect maternal macronutrient intake levels and the fatty acid profile of breast milk in lactating Chinese mothers. Nutrition 2018; 58:83-88. [PMID: 30391695 DOI: 10.1016/j.nut.2018.06.009] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 06/06/2018] [Accepted: 06/23/2018] [Indexed: 12/22/2022]
Abstract
OBJECTIVES Fatty acids (FA) in human milk play an important role in meeting the nutritional demands and promoting the growth and development of breastfeeding infants. Breast milk FA is sensitive to maternal dietary habits, and dietary patterns are better used to explain the effect of diet on FA. Few studies have examined the association between maternal dietary patterns and the FA components of breast milk in developing countries. In this study, we aimed to determine whether dietary patterns affect the FA profile of breast milk in lactating Chinese mothers with the overall goal to optimize the management of infant feeding. METHODS A total of 274 lactating women ranging from 22 d to 6 mo postpartum were included, and samples of their breast milk were collected together with completed questionnaires. Using a principal component analysis, four dietary patterns were identified in a rotated component matrix. FA profiles were detected using capillary gas chromatography and presented as the percentage by weight of total FA. RESULTS Maternal intake of energy, carbohydrates, and proteins showed differences between the different dietary patterns. In addition, there were significant differences in the total proportions of saturated, polyunsaturated, and ω-6 polyunsaturated fatty acids in breast milk among the four patterns (P < 0.001; P = 0.025; P = 0.038, respectively). CONCLUSIONS The results demonstrate that maternal dietary patterns can affect macronutrient intake levels and milk FA profiles in lactating Chinese women. These results are of great significance in understanding how a maternal diet can both improve maternal macronutrient intake and the FA nutritional status of breast milk.
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Affiliation(s)
- Hui-Min Tian
- Department of Nutrition and Food Hygiene, School of Public Health, Jilin University, Changchun, P.R. China
| | - Yi-Xia Wu
- Department of Nutrition and Food Hygiene, School of Public Health, Jilin University, Changchun, P.R. China
| | - Yi-Qi Lin
- Jilin Women and Children Health Hospital, Changchun, P.R. China
| | - Xue-Yan Chen
- Department of Nutrition and Food Hygiene, School of Public Health, Jilin University, Changchun, P.R. China
| | - Miao Yu
- Department of Nutrition and Food Hygiene, School of Public Health, Jilin University, Changchun, P.R. China
| | - Tong Lu
- Department of Nutrition and Food Hygiene, School of Public Health, Jilin University, Changchun, P.R. China
| | - Lin Xie
- Department of Nutrition and Food Hygiene, School of Public Health, Jilin University, Changchun, P.R. China.
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27
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Environmental selection during the last ice age on the mother-to-infant transmission of vitamin D and fatty acids through breast milk. Proc Natl Acad Sci U S A 2018; 115:E4426-E4432. [PMID: 29686092 PMCID: PMC5948952 DOI: 10.1073/pnas.1711788115] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The frequency of the human-specific EDAR V370A isoform is highly elevated in North and East Asian populations. The gene is known to have several pleiotropic effects, among which are sweat gland density and ductal branching in the mammary gland. The former has led some geneticists to argue that the near-fixation of this allele was caused by selection for modulation of thermoregulatory sweating. We provide an alternative hypothesis, that selection instead acted on the allele’s effect of increasing ductal branching in the mammary gland, thereby amplifying the transfer of critical nutrients to infants via mother’s milk. This is likely to have occurred during the Last Glacial Maximum when a human population was genetically isolated in the high-latitude environment of the Beringia. Because of the ubiquitous adaptability of our material culture, some human populations have occupied extreme environments that intensified selection on existing genomic variation. By 32,000 years ago, people were living in Arctic Beringia, and during the Last Glacial Maximum (LGM; 28,000–18,000 y ago), they likely persisted in the Beringian refugium. Such high latitudes provide only very low levels of UV radiation, and can thereby lead to dangerously low levels of biosynthesized vitamin D. The physiological effects of vitamin D deficiency range from reduced dietary absorption of calcium to a compromised immune system and modified adipose tissue function. The ectodysplasin A receptor (EDAR) gene has a range of pleiotropic effects, including sweat gland density, incisor shoveling, and mammary gland ductal branching. The frequency of the human-specific EDAR V370A allele appears to be uniquely elevated in North and East Asian and New World populations due to a bout of positive selection likely to have occurred circa 20,000 y ago. The dental pleiotropic effects of this allele suggest an even higher occurrence among indigenous people in the Western Hemisphere before European colonization. We hypothesize that selection on EDAR V370A occurred in the Beringian refugium because it increases mammary ductal branching, and thereby may amplify the transfer of critical nutrients in vitamin D-deficient conditions to infants via mothers’ milk. This hypothesized selective context for EDAR V370A was likely intertwined with selection on the fatty acid desaturase (FADS) gene cluster because it is known to modulate lipid profiles transmitted to milk from a vitamin D-rich diet high in omega-3 fatty acids.
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28
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Genomics of lactation: role of nutrigenomics and nutrigenetics in the fatty acid composition of human milk. Br J Nutr 2017; 118:161-168. [PMID: 28831952 DOI: 10.1017/s0007114517001854] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Human milk covers the infant's nutrient requirements during the first 6 months of life. The composition of human milk progressively changes during lactation and it is influenced by maternal nutritional factors. Nowadays, it is well known that nutrients have the ability to interact with genes and modulate molecular mechanisms impacting physiological functions. This has led to a growing interest among researchers in exploring nutrition at a molecular level and to the development of two fields of study: nutrigenomics, which evaluates the influence of nutrients on gene expression, and nutrigenetics, which evaluates the heterogeneous individual response to nutrients due to genetic variation. Fatty acids are one of the nutrients most studied in relation to lactation given their biologically important roles during early postnatal life. Fatty acids modulate transcription factors involved in the regulation of lipid metabolism, which in turn causes a variation in the proportion of lipids in milk. This review focuses on understanding, on the one hand, the gene transcription mechanisms activated by maternal dietary fatty acids and, on the other hand, the interaction between dietary fatty acids and genetic variation in genes involved in lipid metabolism. Both of these mechanisms affect the fatty acid composition of human milk.
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