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Aldoori J, Zulyniak MA, Toogood GJ, Hull MA. Fish oil supplement use modifies the relationship between dietary oily fish intake and plasma n-3 PUFA levels: an analysis of the UK Biobank. Br J Nutr 2024; 131:1608-1618. [PMID: 38220216 PMCID: PMC11043909 DOI: 10.1017/s0007114524000138] [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: 10/02/2023] [Revised: 12/17/2023] [Accepted: 01/08/2024] [Indexed: 01/16/2024]
Abstract
Observational evidence linking dietary n-3 PUFA intake and health outcomes is limited by a lack of robust validation of dietary intake using blood n-3 PUFA levels and potential confounding by fish oil supplement (FOS) use. We investigated the relationship between oily fish intake, FOS use and plasma n-3 PUFA levels in 121 650 UK Biobank (UKBB) participants. Ordinal logistic regression models, adjusted for clinical and lifestyle factors, were used to quantify the contribution of dietary oily fish intake and FOS use to plasma n-3 PUFA levels (measured by NMR spectroscopy). Oily fish intake and FOS use were reported by 38 % and 31 % of participants, respectively. Increasing oily fish intake was associated with a higher likelihood of FOS use (P < 0·001). Oily fish intake ≥ twice a week was the strongest predictor of high total n-3 PUFA (OR 6·7 (95 % CI 6·3, 7·1)) and DHA levels (6·6 (6·3, 7·1). FOS use was an independent predictor of high plasma n-3 PUFA levels (2·0 (2·0, 2·1)) with a similar OR to that associated with eating oily fish < once a week (1·9 (1·8, 2·0)). FOS use was associated with plasma n-3 PUFA levels that were similar to individuals in the next highest oily fish intake category. In conclusion, FOS use is more common in frequent fish consumers and modifies the relationship between oily fish intake and plasma n-3 PUFA levels in UKBB participants. If unaccounted for, FOS use may confound the relationship between dietary n-3 PUFA intake, blood levels of n-3 PUFAs and health outcomes.
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Affiliation(s)
- Joanna Aldoori
- Leeds Institute of Medical Research, University of Leeds, LeedsLS9 7TF, UK
- St James’s University Hospital, Leeds Teaching Hospitals NHS Trust, LeedsLS9 7TF, UK
| | | | - Giles J. Toogood
- Leeds Institute of Medical Research, University of Leeds, LeedsLS9 7TF, UK
- St James’s University Hospital, Leeds Teaching Hospitals NHS Trust, LeedsLS9 7TF, UK
| | - Mark A. Hull
- Leeds Institute of Medical Research, University of Leeds, LeedsLS9 7TF, UK
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Sato M, Hishinuma E, Matsukawa N, Shima Y, Saigusa D, Motoike IN, Kogure M, Nakaya N, Hozawa A, Kuriyama S, Yamamoto M, Koshiba S, Kinoshita K. Dietary habits and plasma lipid concentrations in a general Japanese population. Metabolomics 2024; 20:34. [PMID: 38441752 PMCID: PMC10914877 DOI: 10.1007/s11306-024-02087-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 01/02/2024] [Indexed: 03/07/2024]
Abstract
INTRODUCTION Accumulating data on the associations between food consumption and lipid composition in the body is essential for understanding the effects of dietary habits on health. OBJECTIVES As part of omics research in the Tohoku Medical Megabank Community-Based Cohort Study, this study sought to reveal the dietary impact on plasma lipid concentration in a Japanese population. METHODS We conducted a correlation analysis of food consumption and plasma lipid concentrations measured using mass spectrometry, for 4032 participants in Miyagi Prefecture, Japan. RESULTS Our analysis revealed 83 marked correlations between six food categories and the concentrations of plasma lipids in nine subclasses. Previously reported associations, including those between seafood consumption and omega-3 fatty acids, were validated, while those between dairy product consumption and odd-carbon-number fatty acids (odd-FAs) were validated for the first time in an Asian population. Further analysis suggested that dairy product consumption is associated with odd-FAs via sphingomyelin (SM), which suggests that SM is a carrier of odd-FAs. These results are important for understanding odd-FA metabolism with regards to dairy product consumption. CONCLUSION This study provides insight into the dietary impact on plasma lipid concentration in a Japanese population.
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Affiliation(s)
- Mitsuharu Sato
- Tohoku Medical Megabank Organization, Tohoku University, 2-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8573, Japan
| | - Eiji Hishinuma
- Tohoku Medical Megabank Organization, Tohoku University, 2-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8573, Japan
- Advanced Research Center for Innovations in Next-Generation Medicine, Tohoku University, 2-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8573, Japan
| | - Naomi Matsukawa
- Tohoku Medical Megabank Organization, Tohoku University, 2-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8573, Japan
| | - Yoshiko Shima
- Tohoku Medical Megabank Organization, Tohoku University, 2-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8573, Japan
| | - Daisuke Saigusa
- Tohoku Medical Megabank Organization, Tohoku University, 2-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8573, Japan
- Laboratory of Biomedical and Analytical Sciences, Faculty of Pharma-Science, Teikyo University, 2-11-1, Kaga, Itabashi-ku, Tokyo, 173-8605, Japan
| | - Ikuko N Motoike
- Tohoku Medical Megabank Organization, Tohoku University, 2-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8573, Japan
- Graduate School of Information Sciences, Tohoku University, 6-3-09 Aramaki Aza-Aoba, Aoba-ku, Sendai, Miyagi, 980-8579, Japan
| | - Mana Kogure
- Tohoku Medical Megabank Organization, Tohoku University, 2-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8573, Japan
| | - Naoki Nakaya
- Tohoku Medical Megabank Organization, Tohoku University, 2-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8573, Japan
| | - Atsushi Hozawa
- Tohoku Medical Megabank Organization, Tohoku University, 2-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8573, Japan
- Graduate School of Medicine, Tohoku University, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8575, Japan
| | - Shinichi Kuriyama
- Tohoku Medical Megabank Organization, Tohoku University, 2-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8573, Japan
- Graduate School of Medicine, Tohoku University, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8575, Japan
- International Research Institute of Disaster Science, Tohoku University, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8573, Japan
| | - Masayuki Yamamoto
- Tohoku Medical Megabank Organization, Tohoku University, 2-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8573, Japan
| | - Seizo Koshiba
- Tohoku Medical Megabank Organization, Tohoku University, 2-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8573, Japan
- Advanced Research Center for Innovations in Next-Generation Medicine, Tohoku University, 2-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8573, Japan
| | - Kengo Kinoshita
- Tohoku Medical Megabank Organization, Tohoku University, 2-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8573, Japan.
- Advanced Research Center for Innovations in Next-Generation Medicine, Tohoku University, 2-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8573, Japan.
- Graduate School of Information Sciences, Tohoku University, 6-3-09 Aramaki Aza-Aoba, Aoba-ku, Sendai, Miyagi, 980-8579, Japan.
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Liang H, Xiong C, Luo Y, Zhang J, Huang Y, Zhao R, Zhou N, Zhao Z, Luo X. Association between serum polyunsaturated fatty acids and bone mineral density in US adults: NHANES 2011-2014. Front Endocrinol (Lausanne) 2023; 14:1266329. [PMID: 38047106 PMCID: PMC10690584 DOI: 10.3389/fendo.2023.1266329] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 10/25/2023] [Indexed: 12/05/2023] Open
Abstract
Objective The purpose of this study was to investigate the association between serum polyunsaturated fatty acids (PUFAs) and bone mineral density (BMD). Methods We performed a cross-sectional study based on data from the National Health and Nutrition Examination Survey (NHANES) 2011-2014. The weighted multiple linear regression model was utilized to determine the association between serum PUFAs and BMD. Further smoothed curve fitting and threshold effect analysis were conducted. Finally, we performed a subgroup analysis. Results In total, 1979 participants aged 20-59 years were enrolled. After adjusting for all covariates, we found that serum docosapentaenoic acid (DPA) was positively associated with head BMD (β = 0.0015, 95% Cl: 0.0004, 0.0026, P = 0.008296) and lumbar spine BMD (β = 0.0005, 95% Cl: 0.0000, 0.0010, P = 0.036093), and serum eicosadienoic acid (EDA) was negatively associated with thoracic spine BMD (β = -0.0008, 95% Cl: -0.0016, -0.0000, P = 0.045355). Smoothed curve fitting revealed a nonlinear positive association between serum DPA and lumbar spine BMD. Threshold effect analysis indicated that the threshold of serum DPA was 81.4 µmol/L. Subgroup analysis revealed a positive correlation between serum DPA and head BMD in the subgroup aged 50-59 years (β = 0.0025, 95% Cl: 0.0002, 0.0049, P = 0.035249) and females (β = 0.0026, 95% Cl: 0.0008, 0.0044, P = 0.005005). There was a positive relationship between serum DPA and lumbar spine BMD in females (β = 0.0008, 95% Cl: 0.0001, 0.0015, P = 0.017900) and a negative association between serum EDA and thoracic spine BMD in the subgroup aged 30-39 years (β = -0.0016, 95% Cl: -0.0031, -0.0001, P = 0.041331), males (β = -0.0012, 95% Cl: -0.0023, -0.0001, P = 0.039364) and other races (β = -0.0021, 95% Cl: -0.0037, -0.0006, P = 0.008059). Conclusion This study demonstrated a linear positive relationship between serum DPA and head BMD, a nonlinear positive association between serum DPA and lumbar spine BMD, and a linear negative correlation between serum EDA and thoracic spine BMD in US adults.
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Affiliation(s)
- Hao Liang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, China
| | - Chuang Xiong
- Department of Bone and Soft Tissue Oncology, Chongqing University Cancer Hospital, Chongqing, China
| | - Yuangang Luo
- Department of Orthopedics, Qianjiang Central Hospital of Chongqing, Qianjiang, Chongqing, China
| | - Jun Zhang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, China
| | - Yanran Huang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, China
| | - Runhan Zhao
- Department of Orthopedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, China
| | - Nian Zhou
- Department of Orthopedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, China
| | - Zenghui Zhao
- Department of Orthopedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, China
| | - Xiaoji Luo
- Department of Orthopedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, China
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Wadell AT, Bärebring L, Hulander E, Gjertsson I, Landberg R, Lindqvist H, Winkvist A. Dietary biomarkers and food records indicate compliance to study diets in the ADIRA (Anti-inflammatory Diet In Rheumatoid Arthritis) trial. Front Nutr 2023; 10:1209787. [PMID: 37426179 PMCID: PMC10325030 DOI: 10.3389/fnut.2023.1209787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 06/05/2023] [Indexed: 07/11/2023] Open
Abstract
Background In the ADIRA (Anti-inflammatory Diet In Rheumatoid arthritis) trial, compliance to the study diets has previously been described primarily with a score based on reported intake of trial foods from telephone interviews. The aim of this study was to evaluate compliance using objective dietary biomarkers for whole grain, fruit and vegetables, margarine and oil, seafood and overall fat quality, as well as reported intake from food records of key components of the study diets. Methods Fifty patients with rheumatoid arthritis were randomized to begin with the intervention diet (rich in whole grain, fruit and vegetables, margarine/oil and seafood) or the control diet (rich in meat and high-fat dairy) for 10 weeks, followed by a ~ 4 months wash-out period, and then switched diet. Compliance was evaluated using plasma alkylresorcinols (AR) as biomarkers for intake of whole grain wheat and rye, serum carotenoids for fruit and vegetables, plasma linoleic acid (LA, 18:2 n-6) and -α-linolenic acid (18:3, n-3) for margarine and cooking oil, plasma eicosapentaenoic acid (EPA, 20:5 n-3), -docosahexaenoic acid (DHA 22:6, n-3) and -docosapentaenoic acid (22:5 n-3) for seafood, and plasma fatty acid pattern for the overall dietary fat quality. Reported intake of whole grain, fruit, berries and vegetables, seafood, red meat, and fat quality was extracted from 3-d food records. Results Plasma AR C21:0 and C23:0, LA, EPA, and DHA were higher while total serum carotenoids were lower after the intervention diet period compared to the control diet period (AR and carotenoids: p = <0.05, fatty acids: p = <0.001). Reported intake of whole grain, fruit, berries and vegetables, and seafood was higher and reported intake of red meat was lower during the intervention diet period compared to the control diet period (p = <0.001). Plasma- and reported fatty acid pattern differed as intended between the diet periods. Conclusion This study indicates that the participants in the ADIRA trial were compliant to the study diets regarding intake of whole grain, cooking fat, seafood, and red meat, and the intended overall dietary fat quality. Compliance to instructions on fruit- and vegetable intake remains uncertain. Clinical trial registration https://clinicaltrials.gov/ct2/show/NCT02941055?term=NCT02941055&draw=2&rank=1, NCT02941055.
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Affiliation(s)
- Anna Turesson Wadell
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Linnea Bärebring
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Erik Hulander
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Gastroenterology and Hepatology, Clinical Nutrition Unit, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Inger Gjertsson
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Rikard Landberg
- Division of Food and Nutrition Science, Department of Life Sciences, Chalmers University of Technology, Gothenburg, Sweden
| | - Helen Lindqvist
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Anna Winkvist
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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Freedman SD, Zaworski K, Pierzynowska K, Pierzynowski S, Gallotto R, Sathe M, Borowitz DS. Validation of an omega-3 substrate challenge absorption test as an indicator of global fat lipolysis. PLoS One 2023; 18:e0284651. [PMID: 37155649 PMCID: PMC10166528 DOI: 10.1371/journal.pone.0284651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 04/05/2023] [Indexed: 05/10/2023] Open
Abstract
INTRODUCTION The coefficient of fat absorption (CFA) quantifies fat that remains in stool after digestion and is not a direct measure of lipolysis. CFA has been used to assess treatment of pancreatic insufficiency but does not correlate with pancreatic enzyme replacement therapy dose. We explored use of an omega-3 substrate absorption challenge test as a sensitive test of lipolysis and absorption. METHODS We studied a novel microbially-derived lipase (SNSP003) employing an established surgical model commonly used to study the uptake of macronutrients, the exocrine pancreatic insufficient pig. Pigs were fed a high-fat diet and given a standardized omega-3 substrate challenge to test the effect of lipolysis on its absorption. Blood was drawn at 0, 1, 2, 4, 6, 8, 12, and 24 hours following the substrate challenge and was analyzed for omega-3 and total fat levels (c14:c24). SNSP003 was also compard to porcine pancrelipase. RESULTS The absorption of omega-3 fats was significantly increased following administration of 40, 80 and 120 mg SNSP003 lipase by 51% (p = 0.02), 89%, (p = 0.001) and 64% (p = 0.01), respectively, compared to that observed when no lipase was administered to the pigs, with Tmax at 4 hours. The two highest SNSP003 doses were compared to porcine pancrelipase and no significant differences were observed. Both doses increased plasma total fatty acids (141% for the 80 mg dose (p = 0.001) and 133% for the 120 mg dose (p = 0.006), compared to no lipase) and no significant differences were observed between the SNSP003 lipase doses and porcine pancrelipase. CONCLUSION The omega-3 substrate absorption challenge test differentiates among different doses of a novel microbially-derived lipase and correlates with global fat lipolysis and absorption in exocrine pancreatic insufficient pigs. No significant differences were observed between the two highest novel lipase doses and porcine pancrelipase. Studies in humans should be designed to support the evidence presented here that suggests the omega-3 substrate absorption challenge test has advantages over the coefficient of fat absorption test to study lipase activity.
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Affiliation(s)
- Steven D Freedman
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, Boston, MA, United States of America
| | - Kamil Zaworski
- Department of Animal Physiology, The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Jabłonna, Poland
| | - Kateryna Pierzynowska
- Department of Animal Physiology, The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Jabłonna, Poland
- Department of Biology, Lund University, Lund, Sweden
- Synspira Therapeutics, Inc., Framingham, MA, United States of America
| | - Stefan Pierzynowski
- Department of Biology, Lund University, Lund, Sweden
- Anara AB, Trelleborg, Sweden
- Department of Medical Biology, Institute of Rural Health, Lublin, Poland
| | - Robert Gallotto
- Synspira Therapeutics, Inc., Framingham, MA, United States of America
| | - Meghana Sathe
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, University of Texas Southwestern/Children's Health, Dallas, TX, United States of America
| | - Drucy S Borowitz
- Department of Pediatrics, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, United States of America
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Relationship between dietary intake and erythrocyte PUFA in adolescents from a Western Australian cohort. Eur J Clin Nutr 2023; 77:283-291. [PMID: 36207511 PMCID: PMC9908540 DOI: 10.1038/s41430-022-01219-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 09/18/2022] [Accepted: 09/20/2022] [Indexed: 11/08/2022]
Abstract
BACKGROUND Population-based studies show that the intake of omega-3 (n-3) and omega-6 (n-6) polyunsaturated fatty acids (PUFA) are associated with a range of health conditions. Therefore, the reliability of food frequency questionnaires (FFQ) as rapid and easily accessible screening tools for PUFA intake deserve investigation. OBJECTIVE We aimed to assess the relationship between erythrocyte fatty acids and fatty acid intake collected using the Commonwealth Scientific and Industrial Research Organisation (CSIRO) food frequency questionnaire in an adolescent cohort. DESIGN A cross-sectional study using data from 1155 young adolescents participating in the 14-year follow-up of the Raine Study. Bland-Altman plots were used to determine the agreement between dietary intake and erythrocyte levels of each fatty acid. RESULTS The main dietary source of n-3 long-chain (LC) PUFA was 'fresh fish' (53% of total n-3 LC-PUFA). Docosahexaenoic acid (DHA) showed the strongest correlation between erythrocyte and diet assessment (r = 0.274; p < 0.001), whilst linoleic acid (LA) (r = 0.103; p < 0.001) and arachidonic acid (AA) (r = -0.06; p = 0.042) showed weaker correlations, with limits of agreement relatively narrow. Bland-Altman plots showed a dose-dependent bias between the FFQ fatty acid data and corresponding erythrocyte data. CONCLUSIONS For the major n-3 and n-6 PUFA, dietary intakes derived from the FFQ showed weaker correlations and poorer agreement with erythrocyte levels, and the deviation between the two increased with higher intake levels.
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Miyagawa N, Sekikawa A, Miura K, Evans RW, Okuda N, Fujiyoshi A, Yoshita K, Chan Q, Okami Y, Kadota A, Willcox B, Masaki K, Rodriguez B, Sakata K, Nakagawa H, Saitoh S, Okayama A, Kuller LH, Elliott P, Stamler J, Ueshima H. Circulating plasma phospholipid fatty acid levels as a biomarker of habitual dietary fat intake: The INTERMAP/INTERLIPID Study. J Clin Lipidol 2023; 17:131-141. [PMID: 36463085 DOI: 10.1016/j.jacl.2022.11.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 11/07/2022] [Accepted: 11/09/2022] [Indexed: 11/19/2022]
Abstract
BACKGROUND Accurate assessment of fat intake is essential to examine relationships between diet and disease risk. However, estimating individual intakes of fat quantity by dietary assessment is difficult. OBJECTIVE We assessed the association of plasma phospholipid fatty acid levels with dietary intake of fatty acids in the INTERMAP/INTERLIPID study, conducted with a standardized protocol. METHODS The study participants were 1339 men and women ages 40-59 years from five Japanese populations one from Hawaii; four from Japan. Fatty acid intake was estimated from four standardized 24-hour dietary recalls. Plasma phospholipid fatty acid composition was analyzed by gas chromatography. We illustrated the relationship between intake and circulating fatty acid levels using Spearman's rank-correlation coefficients, mean, and median values. RESULTS Spearman's rank-correlation coefficients between intake (g/d) and circulating fatty acid levels (µg/ml) were -0.03 to 0.21 for saturated fatty acids and monounsaturated fatty acids and -0.04 to 0.32 for trans fatty acids. The coefficients for essential n-3 and n-6 fatty acids were moderate to high, especially for eicosapentaenoic acid (EPA), 0.60; docosahexaenoic acid (DHA), 0.41; and EPA+DHA, 0.51. The circulating levels and intake of marine-derived n-3 fatty acids showed a linear association, at least for the intake of EPA+DHA up to 2.1 g/d. CONCLUSION We observed high correlation between intake and circulating levels of marine-derived n-3 fatty acids in participants from Japanese and Japanese-American populations with high and low fish intake. Plasma phospholipid marine-derived n-3 fatty acid measurements are a simple and reliable biomarker for assessing dietary intake.
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Affiliation(s)
- Naoko Miyagawa
- Department of Preventive Medicine and Public Health, Keio University School of Medicine, Shinjuku-ku, 160-8582, Tokyo, Japan; Department of Public Health, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu, 520-2192, Shiga, Japan.
| | - Akira Sekikawa
- Department of Epidemiology, School of Public Health, University of Pittsburgh, 130 De Soto Street, Pittsburgh, PA, 15261, United States.
| | - Katsuyuki Miura
- Department of Public Health, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu, 520-2192, Shiga, Japan; NCD Epidemiology Research Center, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu, 520-2192, Shiga, Japan.
| | - Rhobert W Evans
- Department of Epidemiology, School of Public Health, University of Pittsburgh, 130 De Soto Street, Pittsburgh, PA, 15261, United States.
| | - Nagako Okuda
- Department of Health Science, Kyoto Prefectural University, Sakyo-ku, 602-8566, Kyoto, Japan.
| | - Akira Fujiyoshi
- Department of Hygiene, School of Medicine, Wakayama Medical University, 811-1 Kimiidera, 641-8509, Wakayama, Japan.
| | - Katsushi Yoshita
- Department of Nutrition, Graduate School of Human Life and Ecology, Osaka Metropolitan University, 3-3-138, Sugimoto, Sumiyoshi-ku, 558-8585, Osaka, Japan.
| | - Queenie Chan
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, St Mary's Campus, Norfolk Place, W2 1PG, London, United Kingdom.
| | - Yukiko Okami
- NCD Epidemiology Research Center, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu, 520-2192, Shiga, Japan.
| | - Aya Kadota
- Department of Public Health, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu, 520-2192, Shiga, Japan.
| | - Bradley Willcox
- Department of Geriatric Medicine, John A. Burns School of Medicine, University of Hawaii, 347 N. Kuakini Street, HPM-9, Honolulu, HI, 96817, United States.
| | - Kamal Masaki
- Department of Geriatric Medicine, John A. Burns School of Medicine, University of Hawaii, 347 N. Kuakini Street, HPM-9, Honolulu, HI, 96817, United States.
| | - Beatriz Rodriguez
- Department of Geriatric Medicine, John A. Burns School of Medicine, University of Hawaii, 347 N. Kuakini Street, HPM-9, Honolulu, HI, 96817, United States.
| | - Kiyomi Sakata
- Department of Hygiene and Public Health, Iwate Medical University, 1-1-1 Idaidori, Yahaba-cho, Shiwa-gun, 028-3694, Iwate, Japan.
| | - Hideaki Nakagawa
- Department of Social and Environmental Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada, 920-0293, Ishikawa Kanazawa, Japan.
| | - Shigeyuki Saitoh
- School of Health Sciences, Sapporo Medical University, S1 W17, Chuo-ku, 060-8556, Sapporo, Japan.
| | - Akira Okayama
- Research Institute of Strategy for Prevention, 1-3-9 Shinkawa Chuo-ku, 104-0033, Tokyo, Japan.
| | - Lewis H Kuller
- Department of Epidemiology, School of Public Health, University of Pittsburgh, 130 De Soto Street, Pittsburgh, PA, 15261, United States
| | - Paul Elliott
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, St Mary's Campus, Norfolk Place, W2 1PG, London, United Kingdom.
| | - Jeremiah Stamler
- Feinberg School of Medicine, Northwestern University, Suite 1400, 680 N Lake Shore Drive, Chicago, IL, 60611, United States
| | - Hirotsugu Ueshima
- Department of Public Health, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu, 520-2192, Shiga, Japan; Department of Epidemiology, School of Public Health, University of Pittsburgh, 130 De Soto Street, Pittsburgh, PA, 15261, United States.
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Mantzioris E, Muhlhausler BS, Villani A. Impact of the Mediterranean Dietary pattern on n-3 fatty acid tissue levels-A systematic review. Prostaglandins Leukot Essent Fatty Acids 2022; 176:102387. [PMID: 34929617 DOI: 10.1016/j.plefa.2021.102387] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 12/06/2021] [Accepted: 12/10/2021] [Indexed: 02/03/2023]
Abstract
INTRODUCTION The Mediterranean Diet (MedDiet) is described as a plant-based dietary pattern with adherence associated with reductions in chronic disease risk and longevity. Although the nutrient profile is diverse and complex, the MedDiet is often described as a rich source of n-3 polyunsaturated fatty acids (PUFA) derived from fish, seafood and nuts. However, whether MedDiet adherence results in appreciable increases in tissue levels of n-3 PUFAs is yet to be systematically investigated. This systematic review synthesized the literature to determine the impact of the MedDiet on n-3 PUFA tissue levels. MATERIALS AND METHODS Medline, Embase, Amed, and CINAHL databases were searched for studies reporting on adherence to a MedDiet and tissue levels of n-3 PUFAs. PROSPERO registration number is CRD 42020162114. RESULTS Twenty-two studies were included. Seven were observational studies and 15 were randomised controlled trials (RCTs). All observational studies reported a positive relationship between adherence and higher tissue n-3 PUFA levels. Two-thirds (10/15) of RCTs reported significant increases in n-3 PUFA concentrations. DISCUSSION MedDiet adherence is associated with higher tissue levels of n-3 PUFA. However, we report heterogeneity in the description across all MedDiet interventions.
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Affiliation(s)
- Evangeline Mantzioris
- UniSA: Clinical & Health Sciences, Alliance for Research in Nutrition, Exercise and Activity (ARENA), University of South Australia, North Terrace and Frome Rd, Adelaide SA 5000, Australia.
| | | | - Anthony Villani
- School of Health and Behavioural Sciences, University of the Sunshine Coast, Queensland, Australia
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Altered Plasma Fatty Acids Associate with Gut Microbial Composition in Common Variable Immunodeficiency. J Clin Immunol 2021; 42:146-157. [PMID: 34669143 PMCID: PMC8821409 DOI: 10.1007/s10875-021-01146-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Accepted: 09/27/2021] [Indexed: 12/11/2022]
Abstract
PURPOSE Fatty acid (FA) abnormalities are found in various inflammatory disorders and have been related to disturbed gut microbiota. Patients with common variable immunodeficiency (CVID) have inflammatory complications associated with altered gut microbial composition. We hypothesized that there is an altered FA profile in CVID patients, related to gut microbial dysbiosis. METHODS Plasma FAs were measured in 39 CVID patients and 30 healthy controls. Gut microbial profile, a food frequency questionnaire, and the effect of the oral antibiotic rifaximin were investigated in CVID patients. RESULTS The n-3 polyunsaturated fatty acids (PUFAs), eicosapentaenoic acid (EPA) (1.4 [1.0-1.8] vs. 1.9 [1.2-2.5], median (IQR), P < 0.05), and docosahexaenoic acid (DHA) (3.2 [2.4-3.9] vs. 3.5 [2.9-4.3], P < 0.05), all values expressed as weight percent of total plasma FAs, were reduced in CVID compared to controls. Also, n-6 PUFAs (34.3 ± 3.4 vs. 37.1 ± 2.8, mean ± SD, P < 0.001) and linoleic acid (LA) (24.5 ± 3.3 vs. 28.1 ± 2.7, P < 0.0001) and the FA anti-inflammatory index (98.9 [82.1-119.4] vs. 117.0 [88.7-153.1], median (IQR), P < 0.05) were reduced in CVID. The microbial alpha diversity was positively associated with plasma n-6 PUFAs (r = 0.41, P < 0.001) and LA (r = 0.51, P < 0.001), but not n-3 PUFAs (P = 0.78). Moreover, a 2-week course of rifaximin significantly reduced the proportion of n-6 PUFAs (P = 0.04, UNIANOVA). Serum immunoglobulin G (IgG) levels correlated with plasma n-3 PUFAs (rho = 0.36, P = 0.03) and DHA (rho = 0.41, P = 0.009). CONCLUSION We found a potentially unfavorable FA profile in CVID, related to low IgG levels. High plasma n-6 PUFAs were related to increased gut microbial diversity and altered by rifaximin therapy.
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10
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Buckland G, de Silva Johnson S, Johnson L, Taylor CM, Jones LR, Emmett PM. The relationship between dietary intakes and plasma concentrations of PUFA in school-age children from the Avon Longitudinal Study of Parents and Children (ALSPAC) cohort. Br J Nutr 2021; 127:1-11. [PMID: 34134803 PMCID: PMC10484628 DOI: 10.1017/s0007114521002191] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 06/02/2021] [Accepted: 06/08/2021] [Indexed: 12/31/2022]
Abstract
An adequate intake of PUFA plays a vital role in human health. Therefore, it is important to assess PUFA intakes in different populations and validate them with biomarkers, but only a few small studies are in paediatric populations. We calculated the dietary intake of PUFA and their main food sources in children and assessed associations between PUFA intakes and plasma proportions. Dietary intakes of 7-year-old children (n 8242) enrolled in the Avon Longitudinal Study of Parents and Children were calculated from the parental-completed FFQ. Plasma PUFA were measured in 5571 children 8 months later, and 4380 children had complete dietary and plasma data. The association between dietary and plasma PUFA proportions was estimated using Spearman's correlation coefficients, quintile cross-classification and Cohen's κ coefficients. Mean total PUFA intake was 13·2 g/d (sd 4·2), contributing 6·5 % of total energy intake; n-6 PUFA contributed 5·2 % and n-3 PUFA 0·7 %. The n-6:n-3 ratio was 7·9:1. Mean intakes of EPA and DHA were 35·7 mg/d and 49·7 mg/d, respectively. Most n-3 and n-6 PUFA intakes were weakly correlated with their respective plasma lipids (0·07 ≤ r ≤ 0·16, P < 0·001). The correlation between dietary and plasma DHA was stronger though (r = 0·34, P < 0·001), supported by a modest level of agreement between quintiles (k = 0·32). The results indicate that the FFQ was able to reasonably rank the long-chain (LC) PUFA, DHA, in this paediatric population. Public health initiatives need to address the suboptimal ratio of n-6:n-3 PUFA and very low n-3 LC-PUFA intakes in school-age children in the UK.
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Affiliation(s)
- Genevieve Buckland
- Centre for Academic Child Health, Bristol Medical School, University of Bristol, BristolBS8 1NU, UK
| | - Sandra de Silva Johnson
- Centre for Exercise, Nutrition and Health Sciences, School for Policy Studies, University of Bristol, Bristol, UK
| | - Laura Johnson
- Centre for Exercise, Nutrition and Health Sciences, School for Policy Studies, University of Bristol, Bristol, UK
| | - Caroline M. Taylor
- Centre for Academic Child Health, Bristol Medical School, University of Bristol, BristolBS8 1NU, UK
| | - Louise R. Jones
- Centre for Academic Child Health, Bristol Medical School, University of Bristol, BristolBS8 1NU, UK
| | - Pauline M. Emmett
- Centre for Academic Child Health, Bristol Medical School, University of Bristol, BristolBS8 1NU, UK
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11
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Plasma Fatty Acids and Quantitative Ultrasound, DXA and pQCT Derived Parameters in Postmenopausal Spanish Women. Nutrients 2021; 13:nu13051454. [PMID: 33922947 PMCID: PMC8146540 DOI: 10.3390/nu13051454] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/14/2021] [Accepted: 04/21/2021] [Indexed: 12/25/2022] Open
Abstract
Different factors may contribute to the development of osteopenia or osteoporosis. Fatty acids are key nutrients for health, and a number of studies have reported an association between bone mineral density (BMD) and fatty acid intake. We aimed to investigate the relationships between serum levels of different fatty acids and bone parameters determined by quantitative bone ultrasound (QUS), peripheral quantitative computed tomography (pQCT), and dual-energy X-ray absorptiometry (DXA) in a sample of Spanish postmenopausal women. We enrolled a total of 301 postmenopausal women (median age 59 years; interquartile range (IQR) 7) in this study. All participants underwent full densitometric screening, including calcaneal quantitative ultrasound (QUS), peripheral quantitative computed tomography (pQCT), and dual-energy X-ray absorptiometry (DXA), as well as plasma fatty acid measurement. After adjustment for potential confounders, plasma n-3 polyunsaturated fatty acid (PUFA) levels correlated with BMD in the spine (r = 0.150; p = 0.014) and femoral neck (r = 0.143; p = 0.019). By multiple linear regression, an independent statistically significant positive relationship was observed between BMD in the spine and BMI (β = 0.288; p = 0.001) as well as total plasma n-3 PUFAs (β = 0.155; p = 0.009). The plasma n-3 PUFA level was also a significant and positive predictor of BMD at the femoral neck (β = 0.146; p = 0.009). Independent risk factors for low BMD (T-score ≤ 1) were determined by logistic regression analysis, and a relatively high level of plasma n-3 PUFAs (OR = 0.751; 95% CI 0.587-0.960, p = 0.022) was identified as a protective factor against low bone mass. In this single-center sample of Spanish postmenopausal women, we reported a significant positive and statistically independent association between BMD and plasma levels of n-3 PUFAs.
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12
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Meyer BJ, Sparkes C, Sinclair AJ, Gibson RA, Else PL. Fingertip Whole Blood as an Indicator of Omega-3 Long-Chain Polyunsaturated Fatty Acid Changes during Dose-Response Supplementation in Women: Comparison with Plasma and Erythrocyte Fatty Acids. Nutrients 2021; 13:nu13051419. [PMID: 33922507 PMCID: PMC8147031 DOI: 10.3390/nu13051419] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/21/2021] [Accepted: 04/21/2021] [Indexed: 12/14/2022] Open
Abstract
The sensitivity of fingertip whole blood to reflect habitual dietary and dose-dependent supplemental omega-3 long-chain polyunsaturated fatty acid (n-3 LCPUFA) intake in premenopausal women was compared to that of venous erythrocytes and plasma fatty acids. Samples were obtained from women in a randomised, double-blind, placebo-controlled trial in which premenopausal women (n = 53) were supplemented with DHA-rich tuna oil capsules and/or placebo (Sunola oil) capsules (6 capsules per day) for 8 weeks to achieve doses of either 0, 0.35, 0.7 or 1.05 g/day n-3 LCPUFA. All blood biomarkers were very similar in their ability to reflect dietary n-3 LCPUFA intake (r = 0.38–0.46 for EPA and DHA intake), and in their dose-dependent increases in n-3 LCPUFA levels after supplementation (R2 = 0.41–0.51 for dose effect on biomarker EPA and DHA levels (mol %)). Fingertip whole blood is an effective alternative to erythrocytes and plasma as a biomarker n-3 LCPUFA intake in premenopausal women.
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Affiliation(s)
- Barbara J. Meyer
- School of Medicine, Molecular Horizons, University of Wollongong, Wollongong, NSW 2522, Australia; (C.S.); (P.L.E.)
- Illawarra Medical Research Institute, Wollongong, NSW 2522, Australia
- Correspondence: ; Tel.: +61-2-4221-3459
| | - Cassandra Sparkes
- School of Medicine, Molecular Horizons, University of Wollongong, Wollongong, NSW 2522, Australia; (C.S.); (P.L.E.)
- Illawarra Medical Research Institute, Wollongong, NSW 2522, Australia
| | - Andrew J. Sinclair
- Faculty of Health, Deakin University, Geelong, VIC 3220, Australia;
- Department of Nutrition, Dietetics and Food, Monash University, Notting Hill, VIC 3168, Australia
| | - Robert A. Gibson
- Faculty of Sciences, School of Agriculture, Food and Wine, University of Adelaide, Adelaide, SA 5005, Australia;
| | - Paul L. Else
- School of Medicine, Molecular Horizons, University of Wollongong, Wollongong, NSW 2522, Australia; (C.S.); (P.L.E.)
- Illawarra Medical Research Institute, Wollongong, NSW 2522, Australia
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13
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The pre-clinical phase of rheumatoid arthritis: From risk factors to prevention of arthritis. Autoimmun Rev 2021; 20:102797. [PMID: 33746022 DOI: 10.1016/j.autrev.2021.102797] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 01/29/2021] [Indexed: 02/06/2023]
Abstract
Rheumatoid arthritis (RA) is a chronic autoimmune disease considered as a multistep process spanning from the interaction of genetic (e.g., shared epitope or non-HLA loci), environmental and behavioral risk factors (e.g., smoking) leading to breaking immune tolerance and autoimmune processes such as the production of autoantibodies (e.g., antibodies against citrullinated proteins ACPA or rheumatoid factors, RF), development of the first symptoms without clinical arthritis, and, finally, the manifestation of arthritis. Despite the typical joint involvement in established RA, the pathogenesis of the disease likely begins far from joint structures: in the lungs or periodontium in association with citrullination, intestinal microbiome, or adipose tissue, which supports normal findings in synovial tissue in ACPA+ patients with arthralgia. The presence of ACPA is detectable even years before the first manifestation of RA. The pre-clinical phase of RA is the period preceding clinically apparent RA with ACPA contributing to the symptoms without subclinical inflammation. While the combination of ACPA and RF increases the risk of progression to RA by up to 10 times, increasing numbers of novel autoantibodies are to be investigated to contribute to the increased risk and pathogenesis of RA. With growing knowledge about the course of RA, new aspiration emerges to cure and even prevent RA, shifting the "window of opportunity" to the pre-clinical phases of RA. The clinical definition of individuals at risk of developing RA (clinically suspect arthralgia, CSA) makes it possible to unify these at-risk individuals' clinical characteristics for "preventive" treatment in ongoing clinical trials using mostly biological or conventional synthetic disease-modifying drugs. However, the combination of symptoms, laboratory, and imaging biomarkers may be the best approach to select the correct target at-risk population. The current review aims to explore different phases of RA and discuss the potential of (non)pharmacological intervention aiming to prevent RA.
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14
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Garg PK, Guan W, Nomura S, Weir N, Karger AB, Duprez D, Heckbert SR, Tsai MY. Plasma ω-3 and ω-6 PUFA Concentrations and Risk of Atrial Fibrillation: The Multi-Ethnic Study of Atherosclerosis. J Nutr 2021; 151:1479-1486. [PMID: 33693794 PMCID: PMC8243886 DOI: 10.1093/jn/nxab016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 11/13/2020] [Accepted: 01/19/2021] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Current literature examining the prospective relation of circulating omega-3 (n-3) and omega-6 (n-6) PUFAs and atrial fibrillation (AF) is limited to predominantly white populations. OBJECTIVES We investigated the association of circulating n-3 and n-6 PUFAs with incident AF in participants from the Multi-Ethnic Study of Atherosclerosis. METHODS A total of 6229 participants (mean age = 62 y; 53% female; 39% white, 27% black, 22% Hispanic, and 12% Chinese) who were free of baseline AF and with plasma phospholipid PUFAs measured at baseline using GC were prospectively followed for the development of AF. Incident AF was ascertained using International Classification of Diseases-9 codes from hospital discharge records and Medicare claims data with follow-up through 2014. Multivariable Cox proportional hazards regression analysis was performed to determine the risk of incident AF. RESULTS During a median follow-up of 12.9 y, 813 (13%) participants developed AF. Each higher SD increment in arachidonic acid (AA; 20:4n-6) concentrations was associated with an 11% decreased risk of incident AF (HR: 0.89; 95% CI: 0.82, 0.96). Similarly, higher overall n-6 PUFA concentrations were also associated with a reduced AF risk (HR per SD increment: 0.93; 95% CI: 0.87, 1.00). Although no significant overall associations were observed for any individual n-3 PUFAs, higher circulating concentrations of DHA (22:6n-3) and EPA (20:5n-3) were associated with a decreased AF risk in blacks and Hispanics (DHA only) but not whites or Chinese Americans. CONCLUSIONS In a multiethnic cohort of individuals free of baseline cardiovascular disease, higher plasma concentrations of n-6 PUFAs, particularly AA, were associated with a reduced risk of incident AF. Important differences in AF risk were also noted across race/ethnicity for the n-3 PUFAs DHA and EPA.
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Affiliation(s)
| | - Weihua Guan
- Division of Biostatistics, School of Public Health, University
of Minnesota, Minneapolis, MN, USA
| | - Sarah Nomura
- Department of Laboratory Medicine and Pathology, University of
Minnesota, Minneapolis, MN, USA
| | - Natalie Weir
- Department of Laboratory Medicine and Pathology, University of
Minnesota, Minneapolis, MN, USA
| | - Amy B Karger
- Department of Laboratory Medicine and Pathology, University of
Minnesota, Minneapolis, MN, USA
| | - Daniel Duprez
- Division of Cardiology, University of Minnesota,
Minneapolis, MN, USA
| | - Susan R Heckbert
- Department of Epidemiology, University of
Washington, Seattle, WA, USA
| | - Michael Y Tsai
- Department of Laboratory Medicine and Pathology, University of
Minnesota, Minneapolis, MN, USA
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15
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Coltell O, Sorlí JV, Asensio EM, Barragán R, González JI, Giménez-Alba IM, Zanón-Moreno V, Estruch R, Ramírez-Sabio JB, Pascual EC, Ortega-Azorín C, Ordovas JM, Corella D. Genome-Wide Association Study for Serum Omega-3 and Omega-6 Polyunsaturated Fatty Acids: Exploratory Analysis of the Sex-Specific Effects and Dietary Modulation in Mediterranean Subjects with Metabolic Syndrome. Nutrients 2020; 12:E310. [PMID: 31991592 PMCID: PMC7071282 DOI: 10.3390/nu12020310] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 01/13/2020] [Accepted: 01/21/2020] [Indexed: 12/13/2022] Open
Abstract
Many early studies presented beneficial effects of polyunsaturated fatty acids (PUFA) on cardiovascular risk factors and disease. However, results from recent meta-analyses indicate that this effect would be very low or nil. One of the factors that may contribute to the inconsistency of the results is that, in most studies, genetic factors have not been taken into consideration. It is known that fatty acid desaturase (FADS) gene cluster in chromosome 11 is a very important determinant of plasma PUFA, and that the prevalence of the single nucleotide polymorphisms (SNPs) varies greatly between populations and may constitute a bias in meta-analyses. Previous genome-wide association studies (GWAS) have been carried out in other populations and none of them have investigated sex and Mediterranean dietary pattern interactions at the genome-wide level. Our aims were to undertake a GWAS to discover the genes most associated with serum PUFA concentrations (omega-3, omega-6, and some fatty acids) in a scarcely studied Mediterranean population with metabolic syndrome, and to explore sex and adherence to Mediterranean diet (MedDiet) interactions at the genome-wide level. Serum PUFA were determined by NMR spectroscopy. We found strong robust associations between various SNPs in the FADS cluster and omega-3 concentrations (top-ranked in the adjusted model: FADS1-rs174547, p = 3.34 × 10-14; FADS1-rs174550, p = 5.35 × 10-14; FADS2-rs1535, p = 5.85 × 10-14; FADS1-rs174546, p = 6.72 × 10-14; FADS2-rs174546, p = 9.75 × 10-14; FADS2- rs174576, p = 1.17 × 10-13; FADS2-rs174577, p = 1.12 × 10-12, among others). We also detected a genome-wide significant association with other genes in chromosome 11: MYRF (myelin regulatory factor)-rs174535, p = 1.49 × 10-12; TMEM258 (transmembrane protein 258)-rs102275, p = 2.43 × 10-12; FEN1 (flap structure-specific endonuclease 1)-rs174538, p = 1.96 × 10-11). Similar genome-wide statistically significant results were found for docosahexaenoic fatty acid (DHA). However, no such associations were detected for omega-6 PUFAs or linoleic acid (LA). For total PUFA, we observed a consistent gene*sex interaction with the DNTTIP2 (deoxynucleotidyl transferase terminal interacting protein 2)-rs3747965 p = 1.36 × 10-8. For adherence to MedDiet, we obtained a relevant interaction with the ME1 (malic enzyme 1) gene (a gene strongly regulated by fat) in determining serum omega-3. The top-ranked SNP for this interaction was ME1-rs3798890 (p = 2.15 × 10-7). In the regional-wide association study, specifically focused on the FADS1/FASD2/FADS3 and ELOVL (fatty acid elongase) 2/ELOVL 5 regions, we detected several statistically significant associations at p < 0.05. In conclusion, our results confirm a robust role of the FADS cluster on serum PUFA in this population, but the associations vary depending on the PUFA. Moreover, the detection of some sex and diet interactions underlines the need for these associations/interactions to be studied in all specific populations so as to better understand the complex metabolism of PUFA.
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Affiliation(s)
- Oscar Coltell
- Department of Computer Languages and Systems, Universitat Jaume I, 12071 Castellón, Spain;
- CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, 28029 Madrid, Spain; (J.V.S.); (E.M.A.); (R.B.); (J.I.G.); (I.M.G.-A.); (R.E.); (C.O.-A.)
| | - Jose V. Sorlí
- CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, 28029 Madrid, Spain; (J.V.S.); (E.M.A.); (R.B.); (J.I.G.); (I.M.G.-A.); (R.E.); (C.O.-A.)
- Department of Preventive Medicine and Public Health, School of Medicine, University of Valencia, 46010 Valencia, Spain;
| | - Eva M. Asensio
- CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, 28029 Madrid, Spain; (J.V.S.); (E.M.A.); (R.B.); (J.I.G.); (I.M.G.-A.); (R.E.); (C.O.-A.)
- Department of Preventive Medicine and Public Health, School of Medicine, University of Valencia, 46010 Valencia, Spain;
| | - Rocío Barragán
- CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, 28029 Madrid, Spain; (J.V.S.); (E.M.A.); (R.B.); (J.I.G.); (I.M.G.-A.); (R.E.); (C.O.-A.)
- Department of Preventive Medicine and Public Health, School of Medicine, University of Valencia, 46010 Valencia, Spain;
| | - José I. González
- CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, 28029 Madrid, Spain; (J.V.S.); (E.M.A.); (R.B.); (J.I.G.); (I.M.G.-A.); (R.E.); (C.O.-A.)
- Department of Preventive Medicine and Public Health, School of Medicine, University of Valencia, 46010 Valencia, Spain;
| | - Ignacio M. Giménez-Alba
- CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, 28029 Madrid, Spain; (J.V.S.); (E.M.A.); (R.B.); (J.I.G.); (I.M.G.-A.); (R.E.); (C.O.-A.)
- Department of Preventive Medicine and Public Health, School of Medicine, University of Valencia, 46010 Valencia, Spain;
| | - Vicente Zanón-Moreno
- Area of Health Sciences, Valencian International University, 46002 Valencia, Spain;
- Red Temática de Investigación Cooperativa en Patología Ocular (OFTARED), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Ophthalmology Research Unit “Santiago Grisolia”, Dr. Peset University Hospital, 46017 Valencia, Spain
| | - Ramon Estruch
- CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, 28029 Madrid, Spain; (J.V.S.); (E.M.A.); (R.B.); (J.I.G.); (I.M.G.-A.); (R.E.); (C.O.-A.)
- Department of Internal Medicine, Hospital Clinic, Institut d’Investigació Biomèdica August Pi i Sunyer (IDIBAPS), University of Barcelona, 08036 Barcelona, Spain
| | | | - Eva C. Pascual
- Department of Preventive Medicine and Public Health, School of Medicine, University of Valencia, 46010 Valencia, Spain;
- Assisted Reproduction Unit of the University Hospital of Valencia, 46010 Valencia, Spain
| | - Carolina Ortega-Azorín
- CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, 28029 Madrid, Spain; (J.V.S.); (E.M.A.); (R.B.); (J.I.G.); (I.M.G.-A.); (R.E.); (C.O.-A.)
- Department of Preventive Medicine and Public Health, School of Medicine, University of Valencia, 46010 Valencia, Spain;
| | - Jose M. Ordovas
- Nutrition and Genomics Laboratory, JM-USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA 02111 USA;
- Department of Cardiovascular Epidemiology and Population Genetics, Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029 Madrid, Spain
- IMDEA Alimentación, 28049 Madrid, Spain
| | - Dolores Corella
- CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, 28029 Madrid, Spain; (J.V.S.); (E.M.A.); (R.B.); (J.I.G.); (I.M.G.-A.); (R.E.); (C.O.-A.)
- Department of Preventive Medicine and Public Health, School of Medicine, University of Valencia, 46010 Valencia, Spain;
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Herter-Aeberli I, Graf C, Vollenweider A, Häberling I, Srikanthan P, Hersberger M, Berger G, Mathis D. Validation of a Food Frequency Questionnaire to Assess Intake of n-3 Polyunsaturated Fatty Acids in Switzerland. Nutrients 2019; 11:E1863. [PMID: 31405149 PMCID: PMC6722517 DOI: 10.3390/nu11081863] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 08/07/2019] [Accepted: 08/08/2019] [Indexed: 11/16/2022] Open
Abstract
Population-based data suggest that high intake of omega-3 (n-3) polyunsaturated fatty acids (PUFA) may be beneficial in a variety of health conditions. It is likely that mainly those patients with preexisting n-3 deficiency are those that benefit most from n-3 fatty acid supplementation. Therefore, for targeted interventions, a fast and reliable screening tool for n-3 PUFA intake is necessary. Thus, the aim of this project was to adapt and validate a food frequency questionnaire (FFQ) for n-3 PUFA intake in Switzerland while using as references the following: (1) 7-day food records (FR), and (2) n-3 fatty acid composition of red blood cells (RBC). We recruited 46 healthy adults for the first part of the study and 152 for the second. We used the dietary software EBISpro for the analysis of n-3 PUFA intake. RBC fatty acid composition was determined by gas chromatography mass spectrometry (GC-MS). Using correlation analysis, we found a moderate significant association between FFQ and FR for α-linolenic acid (ALA), eicosapentanoic acid (EPA), docosahexanoic acid (DHA), and total n-3 fatty acids (all r between 0.523 and 0.586, all p < 0.001). Bland Altman analysis further showed good agreement between the two methods and no proportional bias. Correlations between FFQ and RBC fatty acid composition were also moderate for EPA and DHA (r = 0.430 and r = 0.605, p < 0.001), but weaker for ALA and total n-3 (r = 0.314 and r = 0.211, p < 0.01). The efficacy of the FFQ to classify individuals into the same or adjacent quartile of RBC PUFA content ranged between 70% and 87% for the different fatty acids. In conclusion, we showed that the Swiss n-3 PUFA FFQ is a valid tool to assess dietary n-3 PUFA intake, especially DHA and EPA, to determine population groups at risk for low intake.
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Affiliation(s)
- Isabelle Herter-Aeberli
- Laboratory of Human Nutrition, Institute of Food, Nutrition and Health, ETH Zurich, 8092 Zurich, Switzerland.
| | - Celeste Graf
- Laboratory of Human Nutrition, Institute of Food, Nutrition and Health, ETH Zurich, 8092 Zurich, Switzerland
| | - Anna Vollenweider
- Laboratory of Human Nutrition, Institute of Food, Nutrition and Health, ETH Zurich, 8092 Zurich, Switzerland
| | - Isabelle Häberling
- Department of Child and Adolescent Psychiatry, University Hospital of Psychiatry Zurich, 8032 Zurich, Switzerland
| | - Pakeerathan Srikanthan
- Clinical Chemistry and Biochemistry, University Children's Hospital Zurich, 8032 Zurich, Switzerland
| | - Martin Hersberger
- Clinical Chemistry and Biochemistry, University Children's Hospital Zurich, 8032 Zurich, Switzerland
| | - Gregor Berger
- Department of Child and Adolescent Psychiatry, University Hospital of Psychiatry Zurich, 8032 Zurich, Switzerland
| | - Déborah Mathis
- Clinical Chemistry and Biochemistry, University Children's Hospital Zurich, 8032 Zurich, Switzerland
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17
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Pertiwi K, Kok DE, Wanders AJ, de Goede J, Zock PL, Geleijnse JM. Circulating n-3 fatty acids and linoleic acid as indicators of dietary fatty acid intake in post-myocardial infarction patients. Nutr Metab Cardiovasc Dis 2019; 29:343-350. [PMID: 30718141 PMCID: PMC6431560 DOI: 10.1016/j.numecd.2018.12.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 12/14/2018] [Accepted: 12/28/2018] [Indexed: 01/29/2023]
Abstract
BACKGROUND AND AIMS Population-based studies often use plasma fatty acids (FAs) as objective indicators of FA intake, especially for n-3 FA and linoleic acid (LA). The relation between dietary and circulating FA in cardiometabolic patients is largely unknown. We examined whether dietary n-3 FA and LA were reflected in plasma lipid pools in post-myocardial infarction (MI) patients. METHODS AND RESULTS Patients in Alpha Omega Cohort filled out a 203-item food-frequency questionnaire from which eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), alpha-linolenic acid (ALA), and LA intake were calculated. Circulating individual FA (% total FA) were assessed in cholesteryl esters (CE; n = 4066), phospholipids (PL; n = 838), and additionally in total plasma for DHA and LA (n = 739). Spearman correlation coefficients (rs) were calculated for dietary vs. circulating FA. Circulating FA were also compared across dietary FA quintiles, overall and in subgroups by sex, obesity, diabetes, statin use, and high alcohol intake. Patients were on average 69 years old and 79% was male. Moderate correlations between dietary and circulating levels were observed for EPA (rs∼0.4 in CE and PL) and DHA (rs ∼0.5 in CE and PL, ∼0.4 in total plasma), but not for ALA (rs ∼0.0). Weak correlations were observed for LA (rs 0.1 to 0.2). Plasma LA was significantly lower in statin users and in patients with a high alcohol intake. CONCLUSIONS In post-MI patients, dietary EPA and DHA were well reflected in circulating levels. This was not the case for LA, which may partly be influenced by alcohol use and statins.
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Affiliation(s)
- K Pertiwi
- Division of Human Nutrition and Health, Wageningen University, the Netherlands.
| | - D E Kok
- Division of Human Nutrition and Health, Wageningen University, the Netherlands
| | | | - J de Goede
- Division of Human Nutrition and Health, Wageningen University, the Netherlands
| | - P L Zock
- Unilever R&D, Vlaardingen, the Netherlands
| | - J M Geleijnse
- Division of Human Nutrition and Health, Wageningen University, the Netherlands
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Alsumari SR, AlNouri DM, El-Sayed MMA, El-Din MFS, Arzoo S. The sociodemographic characteristics and dietary and blood plasma fatty acid profiles of elderly Saudi women with Alzheimer disease. Lipids Health Dis 2019; 18:77. [PMID: 30927917 PMCID: PMC6441169 DOI: 10.1186/s12944-019-1029-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Accepted: 03/21/2019] [Indexed: 12/02/2022] Open
Abstract
Background Alzheimer’s disease (AD) is a progressive neurodegenerative disease, and due to various physiological and psychological factors the patients are at risk of nutritional insufficiencies. The purpose of this study was to assess the dietary fatty acid intake and its effect on plasma fatty acids in elderly Saudi women and to compare the differences in their food and plasma fatty acid profile on the basis of their residence. Methods A total of 76 elderly women (50–100 years) were recruited through a random sampling method. A structured proforma was designed to gather information related to their age, income, dietary habits, and presence of any disease and awareness of AD. A 24-h dietary recall method for 3 days and food frequency questionnaire, concentrating on fish consumption and consumption of foods rich in ω-3 fatty acids, which was planned by dietitians, was used for dietary assessment. The gathered data were then analyzed using food processor software. The blood samples were collected to determine plasma fatty acids. Results The mean age of women diagnosed with AD was more than 75 years, and the prevalence of illiteracy was higher among AD subjects. As compared to the AD group, the concentration of LA and total ω-6 was significantly (p ≤ 0.05) higher in the control group from both recruitment sites [National Guard Health Affairs, King Abdulaziz Medical City, Riyadh (NGH) and Social Welfare Homes for the Elderly (SWH)]. Similarly, the concentrations of EPA, DHA, and ω-3 were also slightly higher in the control group at both sites, but the difference between the control and AD subjects was only significant (p ≤ 0.05) in subjects from NGH. We found no significant difference in the ω-6/ ω-3 ratio between groups. Also, no significant difference was found in the mean level of the plasma fatty acid when comparing the control and AD groups. The concentration of DHA in controls only and AA, EPA and ω-6 in both control and AD were significant (although weakly) correlated with their respective dietary intakes. No correlations were found between the intake of 18 C precursors (LA and ALA) and plasma levels of their long chain derivatives (AA, EPA, and DHA). Education, income, overall health status and the concentration of various fatty acids from food was higher and better in subjects from SWH than NGH. The lower plasma level indicates lower impaired systemic availability of several nutrients. Conclusion We found that dietary intervention might play a role in the prevention of AD.
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Affiliation(s)
- Samar Rashed Alsumari
- Department of Food and Nutrition Sciences, College of Food and Agriculture Sciences, King Saud University, Riyadh-11495, P.O. 11495, Riyadh, Saudi Arabia
| | - Doha Mustafa AlNouri
- Department of Food and Nutrition Sciences, College of Food and Agriculture Sciences, King Saud University, Riyadh-11495, P.O. 11495, Riyadh, Saudi Arabia.
| | - Mervat Mohamed Ali El-Sayed
- Department of Food and Nutrition Sciences, College of Food and Agriculture Sciences, King Saud University, Riyadh-11495, P.O. 11495, Riyadh, Saudi Arabia
| | - Mohamed Fekry Serag El-Din
- Department of Food and Nutrition Sciences, College of Food and Agriculture Sciences, King Saud University, Riyadh-11495, P.O. 11495, Riyadh, Saudi Arabia.,Department of Nutrition and Food Science, Faculty of Home Economics, Menoufia University, Shebin El Kom, Egypt
| | - Shaista Arzoo
- Department of Food and Nutrition Sciences, College of Food and Agriculture Sciences, King Saud University, Riyadh-11495, P.O. 11495, Riyadh, Saudi Arabia
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19
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Marchioni DM, de Oliveira MF, Carioca AAF, Miranda AAM, Carvalho AM, Oki E, Norde MM, Rogero MM, Damasceno NRT, Fisberg RM. Plasma fatty acids: Biomarkers of dietary intake? Nutrition 2019; 59:77-82. [DOI: 10.1016/j.nut.2018.08.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 07/16/2018] [Accepted: 08/11/2018] [Indexed: 01/19/2023]
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20
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Christensen JJ, Bakke SS, Ulven SM, Retterstøl K, Henriksen T, Bollerslev J, Espevik T, Aukrust P, Halvorsen B, Holven KB. Serum Omega-6 Fatty Acids and Immunology-Related Gene Expression in Peripheral Blood Mononuclear Cells: A Cross-Sectional Analysis in Healthy Children. Mol Nutr Food Res 2019; 63:e1800990. [PMID: 30702198 DOI: 10.1002/mnfr.201800990] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 12/20/2018] [Indexed: 01/07/2023]
Abstract
SCOPE Some studies suggest that a high dietary intake of omega-6 fatty acids is pro-inflammatory. However, whether omega-6 fatty acids actually cause pathogenic inflammation in humans is debated. Therefore, the associations between expression of immunology-related genes in peripheral blood mononuclear cells (PBMCs) and serum total omega-6 PUFA status are investigated. METHODS AND RESULTS Serum fatty acid profile and expression of 460 immunology-related genes in PBMCs from 58 healthy children (6-13 years) is measured, and examined the expression differences between children with high or low total omega-6 PUFA status (upper vs lower tertile). Taken together, both univariate analyses and integrated omics analyses support that while high omega-6 PUFA level associated with higher expressing of genes related to innate immune responses, it also associated with lower expression of several genes related to adaptive immune responses. CONCLUSION Omega-6 PUFA status associated both positively and negatively with expression of specific immunology-related genes in PBMCs in healthy children. The results may suggest a nuanced role for omega-6 fatty acids in the interphase of lipids and inflammation, and warrants further examination in gene-environment studies and randomized controlled trials.
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Affiliation(s)
- Jacob J Christensen
- Department of Nutrition, University of Oslo, P.O. Box 1046 Blindern, 0317, Oslo, Norway.,The Lipid Clinic, Oslo University Hospital, Rikshospitalet, P.O. Box 4950 Nydalen, 0424, Oslo, Norway
| | - Siril S Bakke
- Centre of Molecular Inflammation Research, Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, 7491, Trondheim, Norway
| | - Stine M Ulven
- Department of Nutrition, University of Oslo, P.O. Box 1046 Blindern, 0317, Oslo, Norway
| | - Kjetil Retterstøl
- Department of Nutrition, University of Oslo, P.O. Box 1046 Blindern, 0317, Oslo, Norway.,The Lipid Clinic, Oslo University Hospital, Rikshospitalet, P.O. Box 4950 Nydalen, 0424, Oslo, Norway
| | - Tore Henriksen
- Faculty of Medicine, University of Oslo, P.O. Box 1046 Blindern, 0317, Oslo, Norway.,Department of Obstetrics, Oslo University Hospital, Rikshospitalet, P.O. Box 4950 Nydalen, 0424, Oslo, Norway
| | - Jens Bollerslev
- Faculty of Medicine, University of Oslo, P.O. Box 1046 Blindern, 0317, Oslo, Norway.,Section of Specialized Endocrinology, Oslo University Hospital, Rikshospitalet, P.O. Box 4950 Nydalen, 0424, Oslo, Norway
| | - Terje Espevik
- Centre of Molecular Inflammation Research, Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, 7491, Trondheim, Norway
| | - Pål Aukrust
- Research Institute of Internal Medicine, University of Oslo, P.O. Box 1046 Blindern, 0317, Oslo, Norway.,Institute of Clinical Medicine, P.O. Box 1171 Blindern, 0318, Oslo, Norway.,K.G. Jebsen Inflammatory Research Center, P.O. Box 1171 Blindern, 0318, Oslo, Norway.,Section of Clinical Immunology and Infectious Diseases, Oslo University Hospital, Rikshospitalet, P.O. Box 4950 Nydalen, 0424, Oslo, Norway
| | - Bente Halvorsen
- Research Institute of Internal Medicine, University of Oslo, P.O. Box 1046 Blindern, 0317, Oslo, Norway.,Institute of Clinical Medicine, P.O. Box 1171 Blindern, 0318, Oslo, Norway.,K.G. Jebsen Inflammatory Research Center, P.O. Box 1171 Blindern, 0318, Oslo, Norway
| | - Kirsten B Holven
- Department of Nutrition, University of Oslo, P.O. Box 1046 Blindern, 0317, Oslo, Norway.,Norwegian National Advisory Unit on Familial Hypercholesterolemia, Oslo University Hospital, Rikshospitalet, P.O. Box 4950 Nydalen, 0424, Oslo, Norway
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21
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Mumford SL, Browne RW, Kim K, Nichols C, Wilcox B, Silver RM, Connell MT, Holland TL, Kuhr DL, Omosigho UR, Perkins NJ, Radin R, Sjaarda LA, Schisterman EF. Preconception Plasma Phospholipid Fatty Acids and Fecundability. J Clin Endocrinol Metab 2018; 103:4501-4510. [PMID: 30124893 PMCID: PMC6220440 DOI: 10.1210/jc.2018-00448] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 08/09/2018] [Indexed: 12/30/2022]
Abstract
CONTEXT Fatty acids (FAs) are important for reproductive processes, including steroidogenesis, though associations with fecundability, as measured by time to pregnancy (TTP), are unclear. OBJECTIVE To investigate the relationship between preconception plasma phospholipid FA (PPFA) levels and time to human chorionic gonadotropin-pregnancy among women with prior pregnancy loss. DESIGN, SETTING, AND PARTICIPANTS Prospective cohort of 1228 women attempting pregnancy (aged 18 to 40 years, with one or two prior pregnancy losses) followed for up to six cycles at four US university medical centers during 2006 to 2012. PPFA levels were measured at baseline. MAIN OUTCOME MEASURES Associations with fecundability overall and by body mass index (BMI) group after adjusting for confounders were estimated using fecundability odds ratios (FORs) and 95% CIs. False discovery rate (FDR) was used to account for multiple comparisons. RESULTS Monounsaturated fatty acids (MUFAs) were associated with increased fecundability or shorter TTP [FOR, 1.08 (95% CI, 1.01 to 1.16) per unit increase in percentage of total FAs], whereas polyunsaturated fatty acids (PUFAs) were associated with decreased fecundability or longer TTP [FOR, 0.95 (95% CI, 0.91 to 1.00) per 1% change], though associations only remained significant after FDR adjustment among women with BMI <25 kg/m2. Saturated FA and trans FA were not associated with fecundability. Omega-3 FAs and omega-6 linoleic acid were not associated with fecundability. CONCLUSION We observed associations between preconception MUFA and PUFA levels and fecundability among women with normal BMI, highlighting the importance of FA composition among normal-weight women with prior pregnancy loss.
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Affiliation(s)
- Sunni L Mumford
- Epidemiology Branch, DIPHR, NICHD, National Institutes of Health, Bethesda, Maryland
- Correspondence and Reprint Requests: Sunni L. Mumford, PhD, Earl Stadtman Investigator, Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, 6710B Rockledge Drive, MSC7004, Bethesda, Maryland 20817. E-mail:
| | - Richard W Browne
- Biotechnical and Clinical Laboratory Sciences, University at Buffalo, State University of New York, Buffalo, New York
| | - Keewan Kim
- Epidemiology Branch, DIPHR, NICHD, National Institutes of Health, Bethesda, Maryland
| | - Christina Nichols
- Epidemiology Branch, DIPHR, NICHD, National Institutes of Health, Bethesda, Maryland
| | - Brian Wilcox
- Department of Clinical Sciences, Geisinger Commonwealth School of Medicine, Scranton, Pennsylvania
| | - Robert M Silver
- Department of Family and Preventive Medicine, University of Utah Health Sciences Center, Salt Lake City, Utah
| | - Matthew T Connell
- Epidemiology Branch, DIPHR, NICHD, National Institutes of Health, Bethesda, Maryland
| | - Tiffany L Holland
- Epidemiology Branch, DIPHR, NICHD, National Institutes of Health, Bethesda, Maryland
| | - Daniel L Kuhr
- Epidemiology Branch, DIPHR, NICHD, National Institutes of Health, Bethesda, Maryland
- Department of Obstetrics and Gynecology, Case Western Reserve University, Cleveland, Ohio
- University Hospitals Cleveland Medical Center, Cleveland, Ohio
| | - Ukpebo R Omosigho
- Epidemiology Branch, DIPHR, NICHD, National Institutes of Health, Bethesda, Maryland
| | - Neil J Perkins
- Epidemiology Branch, DIPHR, NICHD, National Institutes of Health, Bethesda, Maryland
| | - Rose Radin
- Epidemiology Branch, DIPHR, NICHD, National Institutes of Health, Bethesda, Maryland
| | - Lindsey A Sjaarda
- Epidemiology Branch, DIPHR, NICHD, National Institutes of Health, Bethesda, Maryland
| | - Enrique F Schisterman
- Epidemiology Branch, DIPHR, NICHD, National Institutes of Health, Bethesda, Maryland
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22
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Diet quality as assessed by the Healthy Food Intake Index and relationship with serum lipoprotein particles and serum fatty acids in pregnant women at increased risk for gestational diabetes. Br J Nutr 2018; 120:914-924. [DOI: 10.1017/s0007114518002404] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
AbstractThe importance of overall diet in modifying circulating lipoprotein particles and fatty acids during pregnancy is unclear. We examined the relationships of diet quality as assessed by the validated Healthy Food Intake Index (HFII) with serum HDL, LDL and VLDL particle concentrations and sizes and proportions of serum fatty acids in pregnant women at high risk for gestational diabetes mellitus (GDM). Overall, 161 women with a BMI of ≥30 kg/m2 and/or a history of GDM were drawn from the Finnish Gestational Diabetes Prevention Study, which is a dietary and exercise intervention trial to prevent GDM. At baseline, the HFII score was inversely related to concentrations of HDL particles (P=0·010) and MUFA (P=0·010) and positively related to concentrations of n-3 (P<0·001) and n-6 (P=0·003) PUFA. The significance for MUFA disappeared after adjustments. An increase in the HFII score from the first to second trimester of pregnancy correlated with reduced VLDL particle size (r −0·16, 95 % CI −0·31, −0·01), decreased MUFA concentrations (r −0·17, 95 % CI −0·31, −0·01) and elevated n-6 PUFA concentrations (r 0·16, 95 % CI 0·01, 0·31). In the maximum-adjusted model, the results remained significant except for VLDL particle size. These findings suggest that higher diet quality as defined by the HFII is related to a more favourable serum fatty acid profile, whereas the relationship with serum lipoprotein profile is limited in pregnant women at increased GDM risk.
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23
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Strandjord SE, Lands B, Hibbeln JR. Validation of an equation predicting highly unsaturated fatty acid (HUFA) compositions of human blood fractions from dietary intakes of both HUFAs and their precursors. Prostaglandins Leukot Essent Fatty Acids 2018; 136:171-176. [PMID: 28390839 PMCID: PMC5591053 DOI: 10.1016/j.plefa.2017.03.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 02/10/2017] [Accepted: 03/06/2017] [Indexed: 10/20/2022]
Abstract
Proportions of omega-3 (n-3) and omega-6 (n-6) in 20- and 22-carbon highly unsaturated fatty acids with 3 or more double bonds (HUFA) accumulated in tissue HUFA (e.g., the %n-6 in HUFA) are biomarkers reflecting intakes of n-6 and n-3 fatty acids. An empirical equation, referred to here as the Lands' Equation, was developed previously to use dietary intakes of n-6 and n-3 HUFA and their 18-carbon precursors to estimate the %n-6 in HUFA of humans. From the PubMed database, we identified clinical trials reporting (a) dietary intake of at least linoleic acid (18:2n-6) and alpha-linolenic acid (18:3n-3), and (b) the amounts of at least arachidonic acid (20:4n-6), eicosapentaenoic acid (20:5n-3), and docosahexaenoic acid (22:6n-3) in lipids of plasma, serum, or red blood cell. Linear regression analyses comparing reported and predicted %n-6 in HUFA gave a correlation coefficient of 0.73 (p<0.000000) for 34 studies with 92 subject groups. These results indicate that circulating HUFA compositions can be reliably estimated from dietary intake data that not only includes n-3 and n-6 HUFA consumption, but also includes consumption of 18 carbon n-3 and n-6 precursor fatty acids.
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Affiliation(s)
| | | | - Joseph R Hibbeln
- Laboratory of Membrane Biochemistry and Biophysics, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, 5625 Fishers Lane, Rm 3N-07, MSC 9410, Bethesda, MD 20892-2088, USA.
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24
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Larsen SV, Holven KB, Ottestad I, Dagsland KN, Myhrstad MCW, Ulven SM. Plasma fatty acid levels and gene expression related to lipid metabolism in peripheral blood mononuclear cells: a cross-sectional study in healthy subjects. GENES AND NUTRITION 2018; 13:9. [PMID: 29662553 PMCID: PMC5892037 DOI: 10.1186/s12263-018-0600-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 03/20/2018] [Indexed: 02/15/2023]
Abstract
Background Solid evidence indicates that intake of marine n-3 fatty acids lowers serum triglycerides and that replacing saturated fatty acids (SFA) with polyunsaturated fatty acids (PUFA) reduces plasma total cholesterol and LDL cholesterol. The molecular mechanisms underlying these health beneficial effects are however not completely elucidated. The aim of this study was therefore to investigate the expression of genes related to lipid metabolism in peripheral blood mononuclear cells (PBMC) depending on the plasma levels of n-6 and n-3 fatty acids and the SFA to PUFA ratio. Methods Fifty-four healthy subjects were grouped into tertiles (n = 18) based on plasma levels of n-6 and n-3 fatty acids and the SFA to PUFA ratio. The PBMC gene expression levels among subjects in the highest versus the lowest tertiles were compared. In total, 285 genes related to cholesterol and triglyceride metabolism were selected for this explorative study. Results Among the 285 selected genes, 161 were defined as expressed in the PBMCs. The plasma SFA to PUFA ratio was associated with the highest number of significantly different expressed genes (25 gene transcripts), followed by plasma n-6 fatty acid level (15 gene transcripts) and plasma n-3 fatty acid level (8 gene transcripts). In particular, genes involved in cholesterol homeostasis were significantly different expressed among subjects with high compared to low plasma SFA to PUFA ratio. Conclusion Genes involved in lipid metabolism were differentially expressed in PBMCs depending on the plasma fatty acid levels. This finding may increase our understanding of how fatty acids influence lipid metabolism at a molecular level in humans. Electronic supplementary material The online version of this article (10.1186/s12263-018-0600-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Sunniva V Larsen
- 1Department of Nutrition, Institute for Basic Medical Sciences, University of Oslo, P.O. Box 1046, Blindern, 0317 Oslo, Norway
| | - Kirsten B Holven
- 1Department of Nutrition, Institute for Basic Medical Sciences, University of Oslo, P.O. Box 1046, Blindern, 0317 Oslo, Norway.,2Norwegian National Advisory Unit on Familial Hypercholesterolemia, Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital, P.O. Box 4950, Nydalen, 0424 Oslo, Norway
| | - Inger Ottestad
- 1Department of Nutrition, Institute for Basic Medical Sciences, University of Oslo, P.O. Box 1046, Blindern, 0317 Oslo, Norway
| | - Kine N Dagsland
- 3Department of Health, Nutrition and Management, Faculty of Health Sciences, Oslo and Akershus University College of Applied Sciences, P.O. Box 4, St. Olavs plass, 0130 Oslo, Norway
| | - Mari C W Myhrstad
- 3Department of Health, Nutrition and Management, Faculty of Health Sciences, Oslo and Akershus University College of Applied Sciences, P.O. Box 4, St. Olavs plass, 0130 Oslo, Norway
| | - Stine M Ulven
- 1Department of Nutrition, Institute for Basic Medical Sciences, University of Oslo, P.O. Box 1046, Blindern, 0317 Oslo, Norway
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25
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de Pablo P, Romaguera D, Fisk HL, Calder PC, Quirke AM, Cartwright AJ, Panico S, Mattiello A, Gavrila D, Navarro C, Sacerdote C, Vineis P, Tumino R, Ollier WE, Michaud DS, Riboli E, Venables PJ, Fisher BA. High erythrocyte levels of the n-6 polyunsaturated fatty acid linoleic acid are associated with lower risk of subsequent rheumatoid arthritis in a southern European nested case–control study. Ann Rheum Dis 2018; 77:981-987. [DOI: 10.1136/annrheumdis-2017-212274] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 01/17/2018] [Accepted: 01/24/2018] [Indexed: 11/04/2022]
Abstract
ObjectivesFindings relating to dietary intake of n-3 polyunsaturated fatty acids (PUFA) and risk of rheumatoid arthritis (RA) are mixed. Erythrocyte membrane PUFA is an accurate objective biomarker of PUFA status; however, there are little data on erythrocyte membrane PUFA and risk of RA. The objective was therefore to compare erythrocyte membrane PUFA between pre-RA individuals and matched controls from a population-based sample, and specifically to test the hypothesis that higher levels of longer chain n-3 PUFA are associated with lower risk of RA.MethodsThe European Prospective Investigation into Cancer and Nutrition (EPIC) is a large European prospective cohort study of apparently healthy populations. We undertook a nested case–control study by identifying RA cases with onset after enrolment (pre-RA) in four EPIC cohorts in Italy and Spain. Confirmed pre-RA cases were matched with controls by age, sex, centre, and date, time and fasting status at blood collection. Conditional logistic regression analysis was used to estimate associations of PUFA with the development of RA, adjusting for potential confounders including body mass index, waist circumference, education level, physical activity, smoking status and alcohol intake.ResultsThe study analysed samples from 96 pre-RA subjects and 258 matched controls. In this analysis, the median time to diagnosis (defined as time between date of blood sample and date of diagnosis) was 6.71 years (range 0.8–15). A significant inverse association was observed with n-6 PUFA linoleic acid (LA) levels and pre-RA in the fully adjusted model (highest tertile: OR 0.29; 95% CI 0.12 to 0.75; P for trend 0.01). No association was observed with any individual n-3 PUFA, total n-3 PUFA or total n-3:n-6 ratio.ConclusionsErythrocyte levels of the n-6 PUFA LA were inversely associated with risk of RA, whereas no associations were observed for other n-6 or n-3 PUFA. Further work is warranted to replicate these findings and to investigate if lower LA levels are a bystander or contributor to the process of RA development.
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26
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Khadge S, Sharp JG, Thiele GM, McGuire TR, Klassen LW, Duryee MJ, Britton HC, Dafferner AJ, Beck J, Black PN, DiRusso CC, Talmadge J. Dietary omega-3 and omega-6 polyunsaturated fatty acids modulate hepatic pathology. J Nutr Biochem 2017; 52:92-102. [PMID: 29175671 DOI: 10.1016/j.jnutbio.2017.09.017] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 09/06/2017] [Accepted: 09/13/2017] [Indexed: 12/13/2022]
Abstract
Recent evidence has suggested that dietary polyunsaturated fatty acids (PUFAs) modulate inflammation; however, few studies have focused on the pathobiology of PUFA using isocaloric and isolipidic diets and it is unclear if the associated pathologies are due to dietary PUFA composition, lipid metabolism or obesity, as most studies compare diets fed ad libitum. Our studies used isocaloric and isolipidic liquid diets (35% of calories from fat), with differing compositions of omega (ω)-6 or long chain (Lc) ω-3 PUFA that were pair-fed and assessed hepatic pathology, inflammation and lipid metabolism. Consistent with an isocaloric, pair-fed model we observed no significant difference in diet consumption between the groups. In contrast, the body and liver weight, total lipid level and abdominal fat deposits were significantly higher in mice fed an ω-6 diet. An analysis of the fatty acid profile in plasma and liver showed that mice on the ω-6 diet had significantly more arachidonic acid (AA) in the plasma and liver, whereas, in these mice ω-3 fatty acids such as eicosapentaenoic acid (EPA) were not detected and docosahexaenoic acid (DHA) was significantly lower. Histopathologic analyses documented that mice on the ω-6 diet had a significant increase in macrovesicular steatosis, extramedullary myelopoiesis (EMM), apoptotic hepatocytes and decreased glycogen storage in lobular hepatocytes, and hepatocyte proliferation relative to mice fed the Lc ω-3 diet. Together, these results support PUFA dietary regulation of hepatic pathology and inflammation with implications for enteral feeding regulation of steatosis and other hepatic lesions.
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Affiliation(s)
- Saraswoti Khadge
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE
| | - John Graham Sharp
- Depatment of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE
| | - Geoffrey M Thiele
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE; Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE; Veteran Affairs Nebraska-Western Iowa Health Care System, Omaha, NE
| | - Timothy R McGuire
- Department of Pharmacy Practice, University of Nebraska Medical Center, Omaha, NE
| | - Lynell W Klassen
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE; Veteran Affairs Nebraska-Western Iowa Health Care System, Omaha, NE
| | - Michael J Duryee
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE
| | - Holly C Britton
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE
| | - Alicia J Dafferner
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE
| | - Jordan Beck
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, NE
| | - Paul N Black
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, NE
| | | | - James Talmadge
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE; Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE.
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da Silva DCG, Segheto W, de Lima MFC, Pessoa MC, Pelúzio MCG, Marchioni DML, Cunha DB, Longo GZ. Using the method of triads in the validation of a food frequency questionnaire to assess the consumption of fatty acids in adults. J Hum Nutr Diet 2017; 31:85-95. [DOI: 10.1111/jhn.12497] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- D. C. G. da Silva
- Department of Nutrition and Health; Federal University of Viçosa; Viçosa Brazil
| | - W. Segheto
- Department of Nutrition and Health; Federal University of Viçosa; Viçosa Brazil
| | - M. F. C. de Lima
- Department of Nutrition and Health; Federal University of Viçosa; Viçosa Brazil
| | - M. C. Pessoa
- Nursing Department; Federal University of Minas Gerais; Belo Horizonte Brazil
| | - M. C. G. Pelúzio
- Department of Nutrition and Health; Federal University of Viçosa; Viçosa Brazil
| | - D. M. L. Marchioni
- Nutrition Department; School of Public Health; University of São Paulo; São Paulo Brazil
| | - D. B. Cunha
- Department of Epidemiology; University of the State Rio de Janeiro; Rio de Janeiro Brazil
| | - G. Z. Longo
- Department of Nutrition and Health; Federal University of Viçosa; Viçosa Brazil
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Increased Fat Absorption From Enteral Formula Through an In-line Digestive Cartridge in Patients With Cystic Fibrosis. J Pediatr Gastroenterol Nutr 2017; 65:97-101. [PMID: 28471913 DOI: 10.1097/mpg.0000000000001617] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
OBJECTIVES Supplemental enteral nutrition (EN) is used by approximately 12% of people with cystic fibrosis (CF). The objective of this study was to evaluate the safety, tolerability, and fat absorption of a new in-line digestive cartridge (Relizorb) that hydrolyzes fat in enteral formula provided to patients with CF. METHODS Patients with CF receiving EN participated in a multicenter, randomized, double-blind, crossover trial with an open-label safety evaluation period. Plasma omega-3 fatty acid (FA) concentrations were measured and used as markers of fat absorption. Gastrointestinal symptoms were recorded to evaluate safety and tolerability. Information regarding the effect of EN on appetite and breakfast consumption was also collected. RESULTS Before study entry, participants had received EN for a mean of 6.6 years at a mean volume of approximately 800 mL, yet had a mean body mass index of only 17.5 kg/m and omega-3 FA plasma concentrations were only 60% of levels found in normal healthy subjects. Compared with placebo, cartridge use resulted in a statistically significant 2.8-fold increase in plasma omega-3 FA concentrations. There were no adverse experiences associated with cartridge use, and a decrease in the frequency and severity of most symptoms of malabsorption was observed with cartridge use. Participants reported increased preservation of appetite and breakfast consumption with cartridge use compared with their pre-study regimen. CONCLUSIONS Use of this in-line digestive cartridge was safe and well tolerated, and resulted in significantly increased levels of plasma omega-3 FA used with enteral formula, suggesting an overall increased fat absorption.
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Mika A, Sledzinski T. Alterations of specific lipid groups in serum of obese humans: a review. Obes Rev 2017; 18:247-272. [PMID: 27899022 DOI: 10.1111/obr.12475] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 08/16/2016] [Accepted: 09/05/2016] [Indexed: 12/15/2022]
Abstract
Obesity is a major contributor to the dysfunction of liver, cardiac, pulmonary, endocrine and reproductive system, as well as a component of metabolic syndrome. Although development of obesity-related disorders is associated with lipid abnormalities, most previous studies dealing with the problem in question were limited to routinely determined parameters, such as serum concentrations of triacylglycerols, total cholesterol, low-density and high-density lipoprotein cholesterol. Many authors postulated to extend the scope of analysed lipid compounds and to study obesity-related alterations in other, previously non-examined groups of lipids. Comprehensive quantitative, structural and functional analysis of specific lipid groups may result in identification of new obesity-related alterations. The review summarizes available evidence of obesity-related alterations in various groups of lipids and their impact on health status of obese subjects. Further, the role of diet and endogenous lipid synthesis in the development of serum lipid alterations is discussed, along with potential application of various lipid compounds as risk markers for obesity-related comorbidities.
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Affiliation(s)
- A Mika
- Department of Environmental Analysis, Faculty of Chemistry, University of Gdansk, Gdansk, Poland
| | - T Sledzinski
- Department of Pharmaceutical Biochemistry, Medical University of Gdansk, Gdansk, Poland
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30
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Yashiro H, Takagahara S, Tamura YO, Miyahisa I, Matsui J, Suzuki H, Ikeda S, Watanabe M. A Novel Selective Inhibitor of Delta-5 Desaturase Lowers Insulin Resistance and Reduces Body Weight in Diet-Induced Obese C57BL/6J Mice. PLoS One 2016; 11:e0166198. [PMID: 27832159 PMCID: PMC5104425 DOI: 10.1371/journal.pone.0166198] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2016] [Accepted: 10/24/2016] [Indexed: 11/15/2022] Open
Abstract
Obesity is now recognized as a state of chronic low-grade inflammation and is called as metabolic inflammation. Delta-5 desaturase (D5D) is an enzyme that metabolizes dihomo-γ-linolenic acid (DGLA) to arachidonic acid (AA). Thus, D5D inhibition increases DGLA (precursor to anti-inflammatory eicosanoids) while decreasing AA (precursor to pro-inflammatory eicosanoids), and could result in synergistic improvement in the low-grade inflammatory state. Here, we demonstrate reduced insulin resistance and the anti-obesity effect of a D5D selective inhibitor (compound-326), an orally active small-molecule, in a high-fat diet-induced obese (DIO) mouse model. In vivo D5D inhibition was confirmed by determining changes in blood AA/DGLA profiles. In DIO mice, chronic treatment with compound-326 lowered insulin resistance and caused body weight loss without significant impact on cumulative calorie intake. Decreased macrophage infiltration into adipose tissue was expected from mRNA analysis. Increased daily energy expenditure was also observed following administration of compound-326, in line with sustained body weight loss. These data indicate that the novel D5D selective inhibitor, compound-326, will be a new class of drug for the treatment of obese and diabetic patients.
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Affiliation(s)
- Hiroaki Yashiro
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Kanagawa Japan
- * E-mail:
| | - Shuichi Takagahara
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Kanagawa Japan
| | - Yumiko Okano Tamura
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Kanagawa Japan
| | - Ikuo Miyahisa
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Kanagawa Japan
| | - Junji Matsui
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Kanagawa Japan
| | - Hideo Suzuki
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Kanagawa Japan
| | - Shota Ikeda
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Kanagawa Japan
| | - Masanori Watanabe
- Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Kanagawa Japan
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Li J, Yin H, Bibus DM, Byelashov OA. The role of Omega-3 docosapentaenoic acid in pregnancy and early development. EUR J LIPID SCI TECH 2016. [DOI: 10.1002/ejlt.201600076] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Juan Li
- Omega Protein Corporation; Houston; TX USA
| | | | - Douglas M. Bibus
- University of Minnesota; Minneapolis; MN USA
- Lipid Technologies; LLC.; Austin MN USA
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Stark KD, Van Elswyk ME, Higgins MR, Weatherford CA, Salem N. Global survey of the omega-3 fatty acids, docosahexaenoic acid and eicosapentaenoic acid in the blood stream of healthy adults. Prog Lipid Res 2016; 63:132-52. [PMID: 27216485 DOI: 10.1016/j.plipres.2016.05.001] [Citation(s) in RCA: 340] [Impact Index Per Article: 42.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 05/14/2016] [Accepted: 05/18/2016] [Indexed: 02/05/2023]
Abstract
Studies reporting blood levels of the omega-3 polyunsaturated fatty acids, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), were systematically identified in order to create a global map identifying countries and regions with different blood levels. Included studies were those of healthy adults, published in 1980 or later. A total of 298 studies met all inclusion criteria. Studies reported fatty acids in various blood fractions including plasma total lipids (33%), plasma phospholipid (32%), erythrocytes (32%) and whole blood (3.0%). Fatty acid data from each blood fraction were converted to relative weight percentages (wt.%) and then assigned to one of four discrete ranges (high, moderate, low, very low) corresponding to wt.% EPA+DHA in erythrocyte equivalents. Regions with high EPA+DHA blood levels (>8%) included the Sea of Japan, Scandinavia, and areas with indigenous populations or populations not fully adapted to Westernized food habits. Very low blood levels (≤4%) were observed in North America, Central and South America, Europe, the Middle East, Southeast Asia, and Africa. The present review reveals considerable variability in blood levels of EPA+DHA and the very low to low range of blood EPA+DHA for most of the world may increase global risk for chronic disease.
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Affiliation(s)
- Ken D Stark
- University of Waterloo, Department of Kinesiology, 200 University Avenue, Waterloo, ON, N2L 3G1, Canada.
| | - Mary E Van Elswyk
- Scientific Affairs, Van Elswyk Consulting, Inc., 10350 Macedonia St., Longmont, CO 80503, USA.
| | - M Roberta Higgins
- MEDetect Clinical Information Associates, Inc., PO Box 152, Skippack, PA 19474, USA.
| | | | - Norman Salem
- DSM Nutritional Products Ltd., 6480 Dobbin Road, Columbia, MD 21045, USA.
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Heskey CE, Jaceldo-Siegl K, Sabaté J, Fraser G, Rajaram S. Adipose tissue α-linolenic acid is inversely associated with insulin resistance in adults. Am J Clin Nutr 2016; 103:1105-10. [PMID: 26912497 PMCID: PMC4807701 DOI: 10.3945/ajcn.115.118935] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Accepted: 01/06/2016] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND There is emerging evidence of the beneficial effects of n-3 (ω-3) fatty acids (FAs) on cardiometabolic risk factors. Nevertheless, not much is known about the association between adipose tissue α-linolenic acid (ALA), eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA) and insulin resistance. OBJECTIVE We determined the association between adipose tissue n-3 FAs (total n-3 FAs, ALA, and EPA plus DHA) and insulin resistance in healthy adults. DESIGN In this cross-sectional study, multivariable analyses were used to assess the association between adipose tissue FAs (ALA, EPA plus DHA, and total n-3 FAs) and the homeostasis model assessment of insulin resistance (HOMA-IR) in a subset of adult participants (n= 716; mean age: 58 y) from the Adventist Health Study-2 (AHS-2) cohort. RESULTS Compared with the lowest tertile, the third tertile (β = -0.13; 95% CI: -0.24, -0.01) of adipose tissue ALA was inversely associated with the HOMA-IR. When stratified by waist circumference, ALA continued to be inversely associated [third tertile: β = -0.17 (95% CI: -0.31, -0.02)] with the HOMA-IR in subjects with a waist circumference ≤88 cm in women or ≤102 cm in men but not in those with a larger waist circumference. No significant association was noted between adipose tissue EPA plus DHA and HOMA-IR. CONCLUSIONS Higher adipose tissue ALA was inversely associated with insulin resistance in this cohort of healthy adult men and women. This finding appears to be more pronounced in individuals with a normal waist circumference.
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Affiliation(s)
- Celine E Heskey
- Center for Nutrition, Healthy Lifestyle and Disease Prevention, School of Public Health, Loma Linda University, Loma Linda, CA
| | - Karen Jaceldo-Siegl
- Center for Nutrition, Healthy Lifestyle and Disease Prevention, School of Public Health, Loma Linda University, Loma Linda, CA
| | - Joan Sabaté
- Center for Nutrition, Healthy Lifestyle and Disease Prevention, School of Public Health, Loma Linda University, Loma Linda, CA
| | - Gary Fraser
- Center for Nutrition, Healthy Lifestyle and Disease Prevention, School of Public Health, Loma Linda University, Loma Linda, CA
| | - Sujatha Rajaram
- Center for Nutrition, Healthy Lifestyle and Disease Prevention, School of Public Health, Loma Linda University, Loma Linda, CA
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Abstract
Meat is a food rich in protein, minerals such as iron and zinc as well as a variety of vitamins, in particular B vitamins. However, the content of cholesterol and saturated fat is higher than in some other food groups. Processed meat is defined as products usually made of red meat that are cured, salted or smoked (e.g. ham or bacon) in order to improve the durability of the food and/or to improve colour and taste, and often contain a high amount of minced fatty tissue (e.g. sausages). Hence, high consumption of processed foods may lead to an increased intake of saturated fats, cholesterol, salt, nitrite, haem iron, polycyclic aromatic hydrocarbons, and, depending upon the chosen food preparation method, also heterocyclic amines. Several large cohort studies have shown that a high consumption of processed (red) meat is related to increased overall and cause-specific mortality. A meta-analysis of nine cohort studies observed a higher mortality among high consumers of processed red meat (relative risk (RR) = 1·23; 95 % CI 1·17, 1·28, top v. bottom consumption category), but not unprocessed red meat (RR = 1·10; 95 % CI 0·98, 1·22). Similar associations were reported in a second meta-analysis. All studies argue that plausible mechanisms are available linking processed meat consumption and risk of chronic diseases such as CVD, diabetes mellitus or some types of cancer. However, the results of meta-analyses do show some degree of heterogeneity between studies, and it has to be taken into account that individuals with low red or processed meat consumption tend to have a healthier lifestyle in general. Hence, substantial residual confounding cannot be excluded. Information from other types of studies in man is needed to support a causal role of processed meat in the aetiology of chronic diseases, e.g. studies using the Mendelian randomisation approach.
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Pittaway JK, Chuang LT, Ahuja KDK, Beckett JM, Glew RH, Ball MJ. Omega-3 dietary Fatty Acid status of healthy older adults in Tasmania, Australia: an observational study. J Nutr Health Aging 2015; 19:505-10. [PMID: 25923478 DOI: 10.1007/s12603-015-0459-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
OBJECTIVES To determine the dietary and supplement intake of omega-3 (n-3) polyunsaturated fatty acids (PUFA) of older Tasmanian adults; their plasma n-3 PUFA status and the relationship between n-3 PUFA intake and plasma status. DESIGN Cross-sectional study. SETTING Launceston and surrounding regions, Tasmania, Australia. PARTICIPANTS Seventy-three community-dwelling older adults: 23 men aged 70 ± 6.1 years and 50 women aged 70 ± 6.7 years. MEASUREMENTS A validated, semi-quantitative food frequency questionnaire estimated dietary PUFA intake. The plasma phospholipid fraction of venous blood samples was analysed for fatty acid content. Anthropometric data was recorded. RESULTS Thirty-five participants (48%) regularly ingested a fish oil supplement. Their plasma n-3 PUFA profile contained significantly more eicosapentaenoic acid (EPA) (odds ratio 3.14; 95% CI 1.37% to 7.30%; p<0.05) and docosahexaenoic acid (DHA) (odds ratio 2.64; 95% CI 1.16% to 6.01%; p<0.05) than non-supplement users. Fish and meat were the main dietary sources of n-3 PUFAs. Participants most commonly consumed fish 3-4 times per week. Significant associations of dietary α-linolenic acid (ALA), EPA, docosapentaenoic acid (DPA) and DHA with plasma n-3 PUFAs were noted but not always between dietary and plasma counterparts. CONCLUSION Without the use of fish oil supplements, most study participants were unable to meet the recommended daily intake of 0.5g EPA and DHA combined; however, the plasma n-3 PUFA profile of non-supplement-users was still robust compared to other Australian and overseas studies.
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Affiliation(s)
- J K Pittaway
- Jane Pittaway, School of Health Sciences, University of Tasmania, Locked Bag 1322, Launceston, Tasmania 7250, Australia, Tel (+61) 3 63245495; Fax (+61) 3 63243658;
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Pinto TJP, Farias DR, Rebelo F, Lepsch J, Vaz JS, Moreira JD, Cunha GM, Kac G. Lower inter-partum interval and unhealthy life-style factors are inversely associated with n-3 essential fatty acids changes during pregnancy: a prospective cohort with Brazilian women. PLoS One 2015; 10:e0121151. [PMID: 25822204 PMCID: PMC4379070 DOI: 10.1371/journal.pone.0121151] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Accepted: 02/06/2015] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE To analyze serum fatty acids concentrations during healthy pregnancy and evaluate whether socioeconomic, demographic, obstetric, nutritional, anthropometric and lifestyle factors are associated with their longitudinal changes. STUDY DESIGN A prospective cohort of 225 pregnant women was followed in the 5th-13th, 20th-26th and 30th-36th weeks of gestation. Serum samples were collected in each trimester of pregnancy and analyzed to determine the fatty acids composition using a high-throughput robotic direct methylation method coupled with fast gas-liquid chromatography. The independent variables comprised the subjects' socioeconomic and demographic status, obstetric history, early pregnancy body mass index (BMI), dietary and lifestyle parameters. Analyses were performed using linear mixed-effects models. RESULTS The overall absolute concentrations of fatty acids increased from the 1st to the 2nd trimester and slightly increased from the 2nd to the 3rd trimester. Early pregnancy BMI, inter-partum interval and weekly fish intake were the factors associated with changes in eicosapentaenoic + docosahexaenoic acids (EPA+DHA) and total n-3 polyunsaturated fatty acids (PUFAs). Early pregnancy BMI, age and monthly per-capita income were inversely associated with the changes in the n-6/n-3 ratio. Alcohol consumption was positively associated with the n-6/n-3 ratio. CONCLUSION Early pregnancy BMI was positively associated with EPA+DHA and total n-3 PUFAs, while presenting a reduced weekly fish intake and a lower inter-partum interval were associated with lower levels of n-3 PUFAs. A lower per-capita family income and a drinking habit were factors that were positively associated with a higher n-6/n-3 ratio.
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Affiliation(s)
- Thatiana J. P. Pinto
- Nutritional Epidemiology Observatory, Department of Social and Applied Nutrition, Institute of Nutrition Josué de Castro, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
- Graduate Program in Nutrition, Institute of Nutrition Josué de Castro, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Dayana R. Farias
- Nutritional Epidemiology Observatory, Department of Social and Applied Nutrition, Institute of Nutrition Josué de Castro, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
- Graduate Program in Nutrition, Institute of Nutrition Josué de Castro, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Fernanda Rebelo
- Nutritional Epidemiology Observatory, Department of Social and Applied Nutrition, Institute of Nutrition Josué de Castro, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
- Graduate Program in Epidemiology in Public Health, National School of Public Health, Oswaldo Cruz Foundation, Rio de Janeiro, RJ, Brazil
| | - Jaqueline Lepsch
- Nutritional Epidemiology Observatory, Department of Social and Applied Nutrition, Institute of Nutrition Josué de Castro, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
- Graduate Program in Nutrition, Institute of Nutrition Josué de Castro, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Juliana S. Vaz
- Nutritional Epidemiology Observatory, Department of Social and Applied Nutrition, Institute of Nutrition Josué de Castro, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
- Faculty of Nutrition, Federal University of Pelotas, Rio Grande do Sul, Brazil
| | - Júlia D. Moreira
- Department of Nutrition, Federal University of Santa Catarina, Florianopolis, Brazil
| | - Geraldo M. Cunha
- Department of Epidemiology, National School of Public Health, Oswaldo Cruz Foundation, Rio de Janeiro, RJ, Brazil
| | - Gilberto Kac
- Nutritional Epidemiology Observatory, Department of Social and Applied Nutrition, Institute of Nutrition Josué de Castro, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
- Graduate Program in Nutrition, Institute of Nutrition Josué de Castro, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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Ostermann AI, Müller M, Willenberg I, Schebb NH. Determining the fatty acid composition in plasma and tissues as fatty acid methyl esters using gas chromatography – a comparison of different derivatization and extraction procedures. Prostaglandins Leukot Essent Fatty Acids 2014; 91:235-41. [PMID: 25458899 DOI: 10.1016/j.plefa.2014.10.002] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Revised: 09/20/2014] [Accepted: 10/03/2014] [Indexed: 11/25/2022]
Abstract
Analysis of the fatty acid (FA) composition in biological samples is commonly carried out using gas liquid chromatography (GC) after transesterification to volatile FA methyl esters (FAME). We compared the efficacy of six frequently used protocols for derivatization of different lipid classes as well as for plasma and tissue samples. Transesterification with trimethylsulfonium hydroxide (TMSH) led to insufficient derivatization efficacies for polyunsaturated FAs (PUFA, <50%). Derivatization in presence of potassium hydroxide (KOH) failed at derivatizing free FAs (FFAs). Boron trifluoride (BF3) 7% in hexane/MeOH (1:1) was insufficient for the transesterification of cholesterol ester (CE) as well as triacylglycerols (TGs). In contrast, methanolic hydrochloric acid (HCl) as well as a combination of BF3 with methanolic sodium hydroxide (NaOH+BF3) were suitable for the derivatization of FFAs, polar lipids, TGs, and CEs (derivatization rate >80% for all tested lipids). Regarding plasma samples, all methods led to an overall similar relative FA pattern. However, significant differences were observed, for example, for the relative amount of EPA+DHA (n3-index). Absolute FA plasma concentrations differed considerably among the methods, with low yields for KOH and BF3. We also demonstrate that lipid extraction with tert-butyl methyl ether/methanol (MTBE/MeOH) is as efficient as the classical method according to Bligh and Dyer, making it possible to replace (environmentally) toxic chloroform.We conclude that HCl-catalyzed derivatization in combination with MeOH/MTBE extraction is the most appropriate among the methods tested for the analysis of FA concentrations and FA pattern in small biological samples. A detailed protocol for the analysis of plasma and tissues is included in this article.
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Marklund M, Magnusdottir OK, Rosqvist F, Cloetens L, Landberg R, Kolehmainen M, Brader L, Hermansen K, Poutanen KS, Herzig KH, Hukkanen J, Savolainen MJ, Dragsted LO, Schwab U, Paananen J, Uusitupa M, Åkesson B, Thorsdottir I, Risérus U. A dietary biomarker approach captures compliance and cardiometabolic effects of a healthy Nordic diet in individuals with metabolic syndrome. J Nutr 2014; 144:1642-9. [PMID: 25080537 DOI: 10.3945/jn.114.193771] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Assessment of compliance with dietary interventions is necessary to understand the observed magnitude of the health effects of the diet per se. To avoid reporting bias, different dietary biomarkers (DBs) could be used instead of self-reported data. However, few studies investigated a combination of DBs to assess compliance and its influence on cardiometabolic risk factors. The objectives of this study were to use a combination of DBs to assess compliance and to investigate how a healthy Nordic diet (ND) influences cardiometabolic risk factors in participants with high apparent compliance compared with the whole study population. From a recently conducted isocaloric randomized trial, SYSDIET (Systems Biology in Controlled Dietary Interventions and Cohort Studies), in 166 individuals with metabolic syndrome, several DBs were assessed to reflect different key components of the ND: canola oil (serum phospholipid α-linolenic acid), fatty fish [eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA)], vegetables (plasma β-carotene), and whole grains (plasma alkylresorcinols). High-fat dairy intake (expectedly low in the ND) was reflected by serum pentadecanoic acid. All participants with biomarker data (n = 154) were included in the analyses. Biomarkers were combined by using a biomarker rank score (DB score) and principal component analysis (PCA). The DB score was then used to assess compliance. During the intervention, median concentrations of alkylresorcinols, α-linolenic acid, EPA, and DHA were >25% higher in the ND individuals than in the controls (P < 0.05), whereas median concentrations of pentadecanoic acid were 14% higher in controls (P < 0.05). Median DB score was 57% higher in the ND than in controls (P < 0.001) during the intervention, and participants were ranked similarly by DB score and PCA score. Overall, estimates of group difference in cardiometabolic effects generally appeared to be greater among compliant participants than in the whole study population (e.g., estimates of treatment effects on blood pressure and lipoproteins were ∼1.5- to 2-fold greater in the most compliant participants), suggesting that poor compliance attenuated the dietary effects. With adequate consideration of their limitations, DB combinations (e.g., DB score) could be useful for assessing compliance in intervention studies investigating cardiometabolic effects of healthy dietary patterns. The study was registered at clinicaltrials.gov as NCT00992641.
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Affiliation(s)
- Matti Marklund
- Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism, Uppsala University, Uppsala, Sweden
| | - Ola K Magnusdottir
- Unit for Nutrition Research, Landspitali, The National University of Iceland, Reykjavík, Iceland Faculty of Food Science and Nutrition and School of Health Sciences, University of Iceland, Reykjavík, Iceland
| | - Fredrik Rosqvist
- Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism, Uppsala University, Uppsala, Sweden
| | - Lieselotte Cloetens
- Biomedical Nutrition, Pure and Applied Biochemistry, Lund University, Lund, Sweden
| | - Rikard Landberg
- Department of Food Science, BioCenter, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Marjukka Kolehmainen
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland VTT Technical Research Centre of Finland, Espoo, Finland
| | - Lea Brader
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Kjeld Hermansen
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Kaisa S Poutanen
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland VTT Technical Research Centre of Finland, Espoo, Finland
| | - Karl-Heinz Herzig
- Institute of Biomedicine, Department of Physiology and Medical Research Center Oulu and
| | - Janne Hukkanen
- Institute of Clinical Medicine, Department of Internal Medicine, Biocenter Oulu, University of Oulu, Oulu, Finland Department of Internal Medicine, Oulu University Hospital, Oulu, Finland
| | - Markku J Savolainen
- Institute of Clinical Medicine, Department of Internal Medicine, Biocenter Oulu, University of Oulu, Oulu, Finland Department of Internal Medicine, Oulu University Hospital, Oulu, Finland
| | - Lars O Dragsted
- Department of Nutrition, Exercise, and Sports, University of Copenhagen, Frederiksberg, Denmark
| | - Ursula Schwab
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland Institute of Clinical Medicine, Internal Medicine and
| | - Jussi Paananen
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Matti Uusitupa
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland Research Unit, Kuopio University Hospital, Kuopio, Finland
| | - Björn Åkesson
- Biomedical Nutrition, Pure and Applied Biochemistry, Lund University, Lund, Sweden
| | - Inga Thorsdottir
- Unit for Nutrition Research, Landspitali, The National University of Iceland, Reykjavík, Iceland Faculty of Food Science and Nutrition and School of Health Sciences, University of Iceland, Reykjavík, Iceland
| | - Ulf Risérus
- Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism, Uppsala University, Uppsala, Sweden
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Lentjes MAH, Mulligan AA, Welch AA, Bhaniani A, Luben RN, Khaw KT. Contribution of cod liver oil-related nutrients (vitamins A, D, E and eicosapentaenoic acid and docosahexaenoic acid) to daily nutrient intake and their associations with plasma concentrations in the EPIC-Norfolk cohort. J Hum Nutr Diet 2014; 28:568-82. [PMID: 25228113 PMCID: PMC4657496 DOI: 10.1111/jhn.12271] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Background Total nutrient intake (TNI) is intake from food and supplements. This provides an assessment of nutrient adequacy and the prevalence of excessive intake, as well as the response with respect to biomarkers. Cod liver oil (CLO) is the most frequently consumed supplement in the UK, containing nutrients that might have varying influences on health. We calculated TNI for vitamins A, D and E, as well as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), and assessed associations with the respective blood concentrations. Methods Seven-day diet diaries and blood samples were taken from two subsets of the European Prospective Investigation into Cancer (EPIC-Norfolk) cohort (age range 39–79 years; n = 1400 for vitamin D; n = 6656 for remaining nutrients). TNI was calculated for the subgroups: nonsupplement users, those consuming the nutrient in supplement form and those consuming a supplement without this nutrient. Results CLO-related nutrients were supplemented by 15%–33%, which approximately doubled median intakes. Almost everyone in the supplement + vitamin A group reached the estimated average requirement; however, guideline levels were likely to be exceeded. Partial correlations between intake of vitamins A and D and biomarkers were low and modestly strengthened by the inclusion of supplement sources (correlation = 0.01–0.13). Correlations between biomarker and TNI of vitamin E and EPA+DHA were in the range 0.40–0.46; however, vitamin E exceeding food intake resulted in attenuated coefficients. Linear associations between food or TNI EPA+DHA and plasma were weak but consistent across subgroups. Conclusions CLO-related nutrients contribute substantially to nutrient intake, with a risk of over-consumption. Apart from EPA+DHA, biomarker data suggest that CLO-related nutrients in supplements are not linearly associated with vitamin status.
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Affiliation(s)
- M A H Lentjes
- Department of Public Health & Primary Care, EPIC-Norfolk Study, University of Cambridge, Cambridge, UK
| | - A A Mulligan
- Department of Public Health & Primary Care, EPIC-Norfolk Study, University of Cambridge, Cambridge, UK
| | - A A Welch
- Norwich Medical School, Department of Population Health and Primary Care, University of East Anglia, Norwich, UK
| | - A Bhaniani
- Department of Public Health & Primary Care, EPIC-Norfolk Study, University of Cambridge, Cambridge, UK
| | - R N Luben
- Department of Public Health & Primary Care, EPIC-Norfolk Study, University of Cambridge, Cambridge, UK
| | - K-T Khaw
- University of Cambridge, School of Clinical Medicine, Clinical Gerontology Unit, Cambridge, UK
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Matthan NR, Ooi EM, Van Horn L, Neuhouser ML, Woodman R, Lichtenstein AH. Plasma phospholipid fatty acid biomarkers of dietary fat quality and endogenous metabolism predict coronary heart disease risk: a nested case-control study within the Women's Health Initiative observational study. J Am Heart Assoc 2014; 3:jah3633. [PMID: 25122663 PMCID: PMC4310362 DOI: 10.1161/jaha.113.000764] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Background Although the relationship between dietary fat quality and coronary heart disease (CHD) risk has been evaluated, typically using diet questionnaires, results are inconsistent and data in postmenopausal women are limited. Plasma phospholipid fatty acid (PL‐FA) profiles, reflecting dietary intake and endogenous FA metabolism, may better predict diet–CHD risk. Methods and Results Using a nested case‐control design, we assessed the association between plasma PL‐FA profiles and CHD risk in 2448 postmenopausal women (1224 cases with confirmed CHD and 1224 controls matched for age, enrollment date, race/ethnicity, and absence of CHD at baseline and after 4.5 years of follow‐up) participating in the Women's Health Initiative observational study. PL‐FA profile was measured using gas chromatography. Product/precursor ratios were used to estimate stearoyl‐CoA‐desaturase (16:1n‐7/16:0, 18:1n‐9/18:0), Δ6‐desaturase (20:3n‐6/18:2n‐6), and Δ5‐desaturase (20:4n‐6/20:3n‐6) activities, indicators of endogenous FA metabolism. Multivariate conditional logistic regression was used to obtain odds ratios (95% CIs) for CHD risk. While no associations were observed for the predominant PL fatty acid (16:0, 18:0, 18:1n‐9, and 18:2n‐6), plasma PL–saturated fatty acid (1.20 [1.08 to 1.32]) and endogenously synthesized PL ω6 fatty acids (20:3n‐6; 3.22 [1.95 to 5.32]), 22:5n‐6; 1.63 [1.20 to 2.23]) and Δ6‐desaturase (1.25 [1.11 to 1.41]) were positively associated with CHD risk. PL‐ω3 fatty acids (20:5n‐3; 0.73 [0.58 to 0.93], 22:5n‐3; 0.56 [0.33 to 0.94], 22:6n‐3; 0.56 [0.39 to 0.80]), 18:1n‐7 (0.54 [0.29 to 0.99]), and Δ5‐desaturase (0.78 [0.70 to 0.88]) were inversely associated with CHD risk. Results support current guidelines regarding regular fish consumption. Additional findings include associations between endogenously synthesized fatty acids and CHD risk, which were partly explained by changes in Δ6‐desaturase and Δ5‐desaturase indexes, suggesting that in vivo metabolism may also play an important role in predicting CHD risk in this cohort of postmenopausal women. Clinical Trial Registration URL: http://ClinicalTrials.gov, Unique identifier: NCT01864122.
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Affiliation(s)
- Nirupa R Matthan
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA (N.R.M., A.H.L.)
| | - Esther M Ooi
- School of Medicine and Pharmacology, University of Western Australia, Perth, WA, Australia (E.M.O.)
| | | | | | - Richard Woodman
- School of Medicine, Flinders University, Bedford Park, SA, Australia (R.W.)
| | - Alice H Lichtenstein
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA (N.R.M., A.H.L.)
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Lepsch J, Vaz JS, Moreira JD, Pinto TJP, Soares-Mota M, Kac G. Food frequency questionnaire as an indicator of the serum composition of essential n
-3 and n
-6 polyunsaturated fatty acids in early pregnancy, according to body mass index. J Hum Nutr Diet 2014; 28:85-94. [DOI: 10.1111/jhn.12225] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- J. Lepsch
- Nutritional Epidemiology Observatory; Josué de Castro Nutrition Institute; Rio de Janeiro Federal University; Rio de Janeiro RJ Brazil
| | - J. S. Vaz
- Nutritional Epidemiology Observatory; Josué de Castro Nutrition Institute; Rio de Janeiro Federal University; Rio de Janeiro RJ Brazil
- Faculty of Nutrition; Federal University of Pelotas; Pelotas RS Brazil
| | - J. D. Moreira
- Nutrition Department; Health Science Centre; Federal University of Santa Catarina; Florianopolis SC Brazil
| | - T. J. P. Pinto
- Nutritional Epidemiology Observatory; Josué de Castro Nutrition Institute; Rio de Janeiro Federal University; Rio de Janeiro RJ Brazil
| | - M. Soares-Mota
- Josué de Castro Nutrition Institute; Rio de Janeiro Federal University; Rio de Janeiro RJ Brazil
| | - G. Kac
- Nutritional Epidemiology Observatory; Josué de Castro Nutrition Institute; Rio de Janeiro Federal University; Rio de Janeiro RJ Brazil
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Gonzales GF, Gonzales C, Villegas L. Exposure of fatty acids after a single oral administration of sacha inchi (Plukenetia volubilis L.) and sunflower oil in human adult subjects. Toxicol Mech Methods 2013; 24:60-9. [PMID: 24090048 DOI: 10.3109/15376516.2013.850566] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
CONTEXT Sacha inchi (Plukenetia volubilis L.) is a potential oilseed crop because it is rich in α-linolenic acid (ALA) (omega-3 fatty acid). OBJECTIVE To evaluate the exposure of fatty acids after a single oral administration of sacha inchi or sunflower oil in healthy volunteers. MATERIAL AND METHODS Plasma fatty acids concentrations were assayed by Gas Chromatography with Flame Ionization Detector in 18 adult subjects. After fasting, blood samples were obtained at 0, 0.5, 1, 2, 4, 8 and 24 h after ingestion of 10 or 15 ml of sacha inchi oil or sunflower oil. RESULTS The proportion ALA/linoleic acid was 1.37 in sacha inchi oil and 0.01 in sunflower oil. ALA, lauric acid, palmitic acid, linolelaidic acid, cis-8,11,14-eicosatrienoic acid, cis-13,16-docosadienoic acid and cis-4,7,10,13,16,19-docosahexaenoic acid (DHA) levels changed over time after sacha inchi oil ingestion but not with sunflower oil. The time at maximal concentration (tmax) for ALA was 2 h after sacha inchi oil ingestion. No ALA in plasma was observed after sunflower oil consumption. The maximal concentration of ALA was 2.84 ± 0.36 mg/ml in women and 0.94 ± 0.57 mg/ml in men, p < 0.05, whereas maximal concentration of DHA was 2.60 ± 0.84 mg/ml in women and 1.00 ± 0.38 mg/ml in men (p > 0.05). There is a trend for higher plasma ALA levels with 15 ml sacha inchi oil. After 2 h of consumption, plasma delta triacylglycerol were reduced with sunflower oil but slightly increased with sacha inchi oil. A reduction in plasma delta triacylglycerol-rich lipoprotein cholesterol was observed with both oils. CONCLUSION Consumption of sacha inchi oil increased ALA and DHA in plasma.
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Affiliation(s)
- Gustavo F Gonzales
- Laboratory of Endocrinology and Reproduction, Department of Biological and Physiological Sciences, Faculty of Sciences and Philosophy, Alberto Cazorla Tálleri, Universidad Peruana Cayetano Heredia , Lima , Peru
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Lassek WD, Gaulin SJC. Maternal milk DHA content predicts cognitive performance in a sample of 28 nations. MATERNAL AND CHILD NUTRITION 2013; 11:773-9. [PMID: 23795772 DOI: 10.1111/mcn.12060] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Convergent evidence from neuronal biology and hominin brain hypertrophy suggests that omega-3 fatty acids are a limiting resource for neural and cognitive development in Homo sapiens, and therefore that children from populations with higher omega-3 availability should display superior cognitive performance. Using multiple regression, we tested this prediction in a sample of 28 countries, with Programme for International Student Assessment (PISA) math scores in 2009 as an index of cognitive performance, and country-specific breast milk levels of omega-3 docosahexaenoic acid (DHA) as an index of omega-3 availability. Breast milk DHA makes a highly significant contribution to math scores (β = 0.462, P = 0.006), greater in magnitude than the control variables of per capita Gross Domestic Product (PCGDP) and educational expenditures per pupil. Together, dietary fish (positively) and total fat (negatively) explain 61% of the variance in maternal milk DHA in a larger sample of 39 countries.
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Affiliation(s)
- William Day Lassek
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Steven J C Gaulin
- Department of Anthropology, University of California, Santa Barbara, California, USA
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Montes R, Chisaguano AM, Castellote AI, Morales E, Sunyer J, López-Sabater MC. Fatty-acid composition of maternal and umbilical cord plasma and early childhood atopic eczema in a Spanish cohort. Eur J Clin Nutr 2013; 67:658-63. [PMID: 23549201 DOI: 10.1038/ejcn.2013.68] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND/OBJECTIVES Fatty-acid status during in-utero development might influence the risk of atopic diseases in early childhood. The aim of this work was to identify the relationship between maternal plasma and cord blood fatty acid (FA) composition and the risk of atopic eczema in the offspring at 14 months of age. SUBJECTS/METHODS Two hundred and eleven non-atopic mothers and their children were studied. Mothers were recruited in their first trimester of gestation and children were monitored until 14 months of age. Samples of maternal plasma and cord blood plasma were analyzed to determine the FA profile of total lipids. Presence of atopic eczema in the infants was documented through questionnaires at 6 and 14 months of age. RESULTS Higher concentrations of total long-chain polyunsaturated FA (LC-PUFA) were found in maternal plasma of non-atopic children in relation to atopic group. Moreover, this maternal plasma LC-PUFA content was negatively correlated with the atopic eczema (odds ratios (OR)=0.83, P=0.04) in infants. Regarding cord blood samples, docosahexaenoic acid (DHA C22:6n3) and the sum of total n-3 and of LC-PUFA n-3 showed a negative correlation with the prevalence of the disease (OR=0.50, 0.49 and 0.49, respectively). CONCLUSIONS Our results show that the fatty-acid status of the fetus during pregnancy has an important role in the development of atopic eczema in early childhood. The prevalence of this atopic disorder is related to lower cord blood plasma levels of FA belonging to n-3 series, especially DHA.
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Affiliation(s)
- R Montes
- Department of Nutrition and Food Science, Faculty of Pharmacy, University of Barcelona, Barcelona, Spain
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Garneau V, Rudkowska I, Paradis AM, Godin G, Julien P, Pérusse L, Vohl MC. Omega-3 fatty acids status in human subjects estimated using a food frequency questionnaire and plasma phospholipids levels. Nutr J 2012; 11:46. [PMID: 22775977 PMCID: PMC3412753 DOI: 10.1186/1475-2891-11-46] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2011] [Accepted: 07/09/2012] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Intakes of omega-3 (n-3) fatty acids (FA) are associated with several health benefits. The aim of this study was to verify whether intakes of n-3 FA estimated from a food frequency questionnaire (FFQ) correlate with n-3 FA levels measured in plasma phospholipids (PL). METHODS The study sample consisted of 200 French-Canadians men and women aged between 18 to 55 years. Dietary data were collected using a validated FFQ. Fasting blood samples were collected and the plasma PL FA profile was measured by gas chromatography. RESULTS Low intakes of n-3 long-chain FA together with low percentages of n-3 long-chain FA in plasma PL were found in French-Canadian population. Daily intakes of eicosapentaenoic acid (EPA), docosapentaenoic acid (DPA) and docosahexaenoic acid (DHA) were similar between men and women. Yet, alpha-linolenic acid (ALA) and total n-3 FA intakes were significantly higher in men compared to women (ALA: 2.28 g and 1.69 g, p < 0.0001, total n-3 FA: 2.57 g and 1.99 g, p < 0.0001; respectively). In plasma PL, DPA and DHA percentages were significantly different between men and women (DPA: 1.03% and 0.88%, p < 0.0001, DHA: 3.00% and 3.43%, p = 0.0005; respectively). Moreover, DHA (men: r = 0.52, p < 0.0001; women: r = 0.57, p < 0.0001) and total n-3 FA (men: r = 0.47, p < 0.0001; women: r = 0.52, p < 0.0001) intakes were positively correlated to their respective plasma PL FA levels. In women, EPA (r = 0.44, p < 0.0001) and DPA (r = 0.23, p = 0.02) intakes were also correlated respectively with EPA and DPA plasma PL FA percentages. CONCLUSION Estimated n-3 long-chain FA intake among this young and well-educated French-Canadian population is lower than the recommendations. Further, FFQ data is comparable to plasma PL results to estimate DHA and total n-3 FA status in healthy individuals as well as to evaluate the EPA and DPA status in women. Overall, this FFQ could be used as a simple, low-cost tool in future studies to rank n-3 FA status of individuals.
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Affiliation(s)
- Véronique Garneau
- Department of Food Science and Nutrition, Laval University, Québec, Canada
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Abstract
The aims of the present study were to review the validity of dietary methods used to measure the usual long chain (LC) omega-3 polyunsaturated fatty acid (n-3 PUFA) intake of a population and to assess the usefulness of different biomarkers of n-3 PUFA in healthy humans. Two systematic literature searches were conducted until May 2011 to update previous systematic reviews. The first literature search aimed to find studies validating the methodology used for measuring the dietary intake of n-3 PUFA. The second search aimed to find human intervention studies in which n-3 PUFA status changed after 2 weeks of n-3 PUFA supplementation. Sixteen studies were identified for inclusion in the first review. Correlation coefficients between fatty acids in subcutaneous fat or blood lipids and dietary intake of n-3 PUFA from different questionnaires were similar. Subcutaneous fat has been reported as the best reference method for some authors, and these studies showed moderate correlation coefficients with no dietary intake method being superior to any other. As for the evaluation of biomarkers of docosahexaenoic acid (DHA, 22 : 6 n-3) and eicosapentaenoic acid (EPA, 20 : 5n-3) status in response to supplementation, the new search reaffirmed and reinforced the evidence supporting that plasma phospholipid DHA, erythrocyte DHA, and platelet DHA were all effective and robust biomarkers of DHA status. Our findings only confirmed earlier studies and did not provide evidence for reaching new conclusions.
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Sirot V, Dumas C, Desquilbet L, Mariotti F, Legrand P, Catheline D, Leblanc JC, Margaritis I. A restricted cubic spline approach to assess the association between high fat fish intake and red blood cell EPA + DHA content. Nutr Metab Cardiovasc Dis 2012; 22:318-326. [PMID: 20875947 DOI: 10.1016/j.numecd.2010.06.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2010] [Revised: 05/04/2010] [Accepted: 06/14/2010] [Indexed: 11/19/2022]
Abstract
BACKGROUND AND AIMS Fish, especially fatty fish, are the main contributor to eicosapentaenoic (EPA) and docosahexaenoic (DHA) intake. EPA and DHA concentrations in red blood cells (RBC) has been proposed as a cardiovascular risk factor, with <4% and >8% associated with the lowest and greatest protection, respectively. The relationship between high fat fish (HFF) intake and RBC EPA + DHA content has been little investigated on a wide range of fish intake, and may be non-linear. We aimed to study the shape of this relationship among high seafood consumers. METHODS AND RESULTS Seafood consumption records and blood were collected from 384 French heavy seafood consumers and EPA and DHA were measured in RBC. A multivariate linear regression was performed using restricted cubic splines to consider potential non-linear associations. Thirty-six percent of subjects had an RBC EPA + DHA content lower than 4% and only 5% exceeded 8%. HFF consumption was significantly associated with RBC EPA + DHA content (P [overall association] = 0.021) adjusted for sex, tobacco status, study area, socioeconomic status, age, alcohol, other seafood, meat, and meat product intakes. This relationship was non-linear: for intakes higher than 200 g/wk, EPA + DHA content tended to stagnate. Tobacco status and fish contaminants were negatively associated with RBC EPA + DHA content. CONCLUSION Because of the saturation for high intakes, and accounting for the concern with exposure to trace element contaminants, intake not exceeding 200 g should be considered.
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Affiliation(s)
- V Sirot
- AFSSA, French Food Safety Agency, 27 avenue du Général Leclerc, F-94701 Maisons-Alfort, France.
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Van Horn L, Tian L, Neuhouser ML, Howard BV, Eaton CB, Snetselaar L, Matthan NR, Lichtenstein AH. Dietary patterns are associated with disease risk among participants in the Women's Health Initiative Observational Study. J Nutr 2012; 142:284-91. [PMID: 22190026 PMCID: PMC3260060 DOI: 10.3945/jn.111.145375] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Coronary heart disease (CHD) is the leading cause of death in women. A nested case-control study tested whether dietary patterns predicted CHD events among 1224 participants in the Women's Health Initiative-Observational Study (WHI-OS) with centrally confirmed CHD, fatal or nonfatal myocardial infarct compared to 1224 WHI-OS controls matched for age, enrollment date, race/ethnicity, and absence of CHD at baseline or follow-up. The first six principal components explained >75% of variation in dietary intakes and K-mean analysis based on these six components produced three clusters. Diet cluster 1 was rich in carbohydrate, vegetable protein, fiber, dietary vitamin K, folate, carotenoids, α-linolenic acid [18:3(n-3)], linoleic acid [18:2(n-6)], and supplemental calcium and vitamin D. Diet cluster 2 was rich in total and animal protein, arachidonic acid [20:4(n-6)], DHA [22:6(n-3)], vitamin D, and calcium. Diet cluster 3 was rich in energy, total fat, and trans fatty acids (all P < 0.01). Conditional logistic regression analysis demonstrated diet cluster 1 was associated with lower CHD risk than diet cluster 2 (reference group) adjusted for smoking, education, and physical activity [OR = 0.79 (95% CI = 0.64, 0.99); P = 0.038]. This difference was not significant after adjustment for BMI and systolic blood pressure. Diet cluster 3 was associated with higher CHD risk than diet cluster 2 [OR = 1.28 (95% CI = 1.04, 1.57); P = 0.019], but this difference did not remain significant after adjustment for smoking, education, and physical activity. Within this WHI-OS cohort, distinct dietary patterns may be associated with subsequent CHD outcomes.
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Affiliation(s)
- Linda Van Horn
- Department of Preventive Medicine, Northwestern University, Chicago, IL,To whom correspondence should be addressed. E-mail:
| | - Lu Tian
- Stanford University School of Medicine, Stanford, CA
| | - Marian L. Neuhouser
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA
| | | | - Charles B. Eaton
- Department of Family Medicine and Community Health (Epidemiology) Alpert Medical School of Brown University Memorial Hospital of Rhode Island, Pawtucket, RI
| | | | - Nirupa R. Matthan
- Cardiovascular Nutrition Laboratory, Jean Mayer USDA Human Nutrition Research Center, Tufts University, Boston, MA
| | - Alice H. Lichtenstein
- Cardiovascular Nutrition Laboratory, Jean Mayer USDA Human Nutrition Research Center, Tufts University, Boston, MA
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Alessandri JM, Extier A, Al-Gubory KH, Langelier B, Baudry C, LePoupon C, Lavialle M, Guesnet P. Ovariectomy and 17β-estradiol alter transcription of lipid metabolism genes and proportions of neo-formed n-3 and n-6 long-chain polyunsaturated fatty acids differently in brain and liver. J Nutr Biochem 2011; 22:820-7. [DOI: 10.1016/j.jnutbio.2010.07.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2010] [Revised: 05/27/2010] [Accepted: 07/02/2010] [Indexed: 11/30/2022]
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Associations of plasma phospholipid omega-6 and omega-3 polyunsaturated Fatty Acid levels and MRI measures of cardiovascular structure and function: the multiethnic study of atherosclerosis. J Nutr Metab 2011; 2011:315134. [PMID: 21869927 PMCID: PMC3159987 DOI: 10.1155/2011/315134] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2011] [Revised: 06/12/2011] [Accepted: 06/29/2011] [Indexed: 02/07/2023] Open
Abstract
Background. The association between plasma omega-6 fatty acids and cardiovascular disease (CVD) is unclear, and discrepancy remains concerning the cardiovascular benefit of the omega-3 fatty acid alpha-linolenic acid. Methods. Associations of plasma phospholipid fatty acid levels (arachidonic acid, linoleic acid, eicosapentaenoic acid, docosahexaenoic acid (DHA), and alpha-linolenic acid) with cardiac magnetic resonance imaging measures of left ventricular (LV) mass, LV volume, ejection fraction, stroke volume, and aortic distensibility were investigated in 1,274 adults. Results. Results of multivariate analysis showed no statistically significant associations of plasma omega-6 or omega-3 levels with cardiac magnetic resonance imaging measures. Stratification by gender revealed a positive association between DHA and LV mass in women (β = 1.89, P = 0.02; P interaction = 0.003) and a trend for a positive association between DHA and ejection fraction in men (β = 0.009, P = 0.05; P interaction = 0.03). Conclusion. Additional research is warranted to clarify the effects of plasma DHA on cardiac structure and function in women versus men.
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