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Marklund M, Wu JHY, Imamura F, Del Gobbo LC, Fretts A, de Goede J, Shi P, Tintle N, Wennberg M, Aslibekyan S, Chen TA, de Oliveira Otto MC, Hirakawa Y, Eriksen HH, Kröger J, Laguzzi F, Lankinen M, Murphy RA, Prem K, Samieri C, Virtanen J, Wood AC, Wong K, Yang WS, Zhou X, Baylin A, Boer JM, Brouwer IA, Campos H, Chaves PHM, Chien KL, de Faire U, Djoussé L, Eiriksdottir G, El-Abbadi N, Forouhi NG, Gaziano JM, Geleijnse JM, Gigante B, Giles G, Guallar E, Gudnason V, Harris T, Harris WS, Helmer C, Hellenius ML, Hodge A, Hu FB, Jacques PF, Jansson JH, Kalsbeek A, Khaw KT, Koh WP, Laakso M, Leander K, Hung-Ju Lin, Lind L, Luben R, Luo J, McKnight B, Mursu J, Ninomiya T, Overvad K, Psaty BM, Rimm E, Schulze MB, Siscovick D, Nielsen MS, Smith AV, Steffen BT, Steffen L, Sun Q, Sundström J, Tsai MY, Tunstall-Pedoe H, Uusitupa MIJ, van Dam RM, Veenstra J, Verschuren WM, Wareham N, Willett W, Woodward M, Yuan JM, Micha R, Lemaitre RN, Mozaffarian D. Biomarkers of Dietary Omega-6 Fatty Acids and Incident Cardiovascular Disease and Mortality. Circulation 2019; 139:2422-2436. [PMID: 30971107 PMCID: PMC6582360 DOI: 10.1161/circulationaha.118.038908] [Citation(s) in RCA: 174] [Impact Index Per Article: 34.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
BACKGROUND Global dietary recommendations for and cardiovascular effects of linoleic acid, the major dietary omega-6 fatty acid, and its major metabolite, arachidonic acid, remain controversial. To address this uncertainty and inform international recommendations, we evaluated how in vivo circulating and tissue levels of linoleic acid (LA) and arachidonic acid (AA) relate to incident cardiovascular disease (CVD) across multiple international studies. METHODS We performed harmonized, de novo, individual-level analyses in a global consortium of 30 prospective observational studies from 13 countries. Multivariable-adjusted associations of circulating and adipose tissue LA and AA biomarkers with incident total CVD and subtypes (coronary heart disease, ischemic stroke, cardiovascular mortality) were investigated according to a prespecified analytic plan. Levels of LA and AA, measured as the percentage of total fatty acids, were evaluated linearly according to their interquintile range (ie, the range between the midpoint of the first and fifth quintiles), and categorically by quintiles. Study-specific results were pooled using inverse-variance-weighted meta-analysis. Heterogeneity was explored by age, sex, race, diabetes mellitus, statin use, aspirin use, omega-3 levels, and fatty acid desaturase 1 genotype (when available). RESULTS In 30 prospective studies with medians of follow-up ranging 2.5 to 31.9 years, 15 198 incident cardiovascular events occurred among 68 659 participants. Higher levels of LA were significantly associated with lower risks of total CVD, cardiovascular mortality, and ischemic stroke, with hazard ratios per interquintile range of 0.93 (95% CI, 0.88-0.99), 0.78 (0.70-0.85), and 0.88 (0.79-0.98), respectively, and nonsignificantly with lower coronary heart disease risk (0.94; 0.88-1.00). Relationships were similar for LA evaluated across quintiles. AA levels were not associated with higher risk of cardiovascular outcomes; in a comparison of extreme quintiles, higher levels were associated with lower risk of total CVD (0.92; 0.86-0.99). No consistent heterogeneity by population subgroups was identified in the observed relationships. CONCLUSIONS In pooled global analyses, higher in vivo circulating and tissue levels of LA and possibly AA were associated with lower risk of major cardiovascular events. These results support a favorable role for LA in CVD prevention.
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Affiliation(s)
- Matti Marklund
- Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism, Uppsala University, Sweden
- The George Institute for Global Health and the Faculty of Medicine, University of New South Wales, Sydney, Australia
| | - Jason HY Wu
- The George Institute for Global Health and the Faculty of Medicine, University of New South Wales, Sydney, Australia
| | - Fumiaki Imamura
- Medical Research Council Epidemiology Unit, University of Cambridge, United Kingdom
| | - Liana C. Del Gobbo
- Department of Medicine, Division of Cardiovascular Medicine, Stanford University School of Medicine, CA
| | - Amanda Fretts
- Cardiovascular Health Research Unit, Department of Medicine, University of Washington, Seattle
| | - Janette de Goede
- Division of Human Nutrition, Wageningen University, The Netherlands
| | - Peilin Shi
- Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA
| | - Nathan Tintle
- Department of Mathematics and Statistics, Dordt College, Sioux Centre, IA
| | - Maria Wennberg
- Department of Public Health and Clinical Medicine, Nutritional Research, Umeå University, Sweden
| | | | - Tzu-An Chen
- USDA/ARS Children's Nutrition Research Center, Baylor College of Medicine, Houston, TX
| | - Marcia C. de Oliveira Otto
- Division of Epidemiology, Human Genetics and Environmental Sciences, the University of Texas Health Science Center, School of Public Health, Houston
| | - Yoichiro Hirakawa
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | | | - Janine Kröger
- Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
| | - Federica Laguzzi
- Unit of Cardiovascular Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Maria Lankinen
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio
| | - Rachel A. Murphy
- University of British Columbia, Vancouver, British Columbia, Canada
| | - Kiesha Prem
- Saw Swee Hock School of Public Health, National University of Singapore
| | - Cécilia Samieri
- Univ. Bordeaux, Inserm, Bordeaux Population Health Research Center, TUMR 1219, France
| | - Jyrki Virtanen
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio
| | - Alexis C. Wood
- USDA/ARS Children's Nutrition Research Center, Baylor College of Medicine, Houston, TX
| | - Kerry Wong
- Centre for Epidemiology and Biostatistics, The University of Melbourne, Australia
| | - Wei-Sin Yang
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei
| | - Xia Zhou
- Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis
| | - Ana Baylin
- Departments of Nutritional Sciences and Epidemiology, School of Public Health, University of Michigan, Ann Arbor
| | - Jolanda M.A. Boer
- Centre for Nutrition, Prevention and Health Services, National Institute of Public Health and the Environment, Bilthoven, The Netherlands
| | | | - Hannia Campos
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Paulo H. M. Chaves
- Benjamin Leon for Geriatrics Research and Education, Herbert Wertheim College of Medicine, Florida International University, Miami
| | - Kuo-Liong Chien
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei
- Department of Internal Medicine, National Taiwan University Hospital, Taipei
| | - Ulf de Faire
- Unit of Cardiovascular Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Luc Djoussé
- Brigham and Women's Hospital, Boston Veterans Affairs Healthcare System, MA
| | - Gudny Eiriksdottir
- Icelandic Heart Association, Kópavogur, Iceland; and Faculty of Medicine, University of Iceland, Reykjavik
| | - Naglaa El-Abbadi
- Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA
- USDA Jean Mayer Human Nutrition Research Center, Boston, MA
| | - Nita G. Forouhi
- Medical Research Council Epidemiology Unit, University of Cambridge, United Kingdom
| | - J. Michael Gaziano
- Brigham and Women's Hospital, Boston Veterans Affairs Healthcare System, MA
| | | | - Bruna Gigante
- Unit of Cardiovascular Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Graham Giles
- Centre for Epidemiology and Biostatistics, The University of Melbourne, Australia
| | - Eliseo Guallar
- Division of Environmental Epidemiology, Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Vilmundur Gudnason
- Icelandic Heart Association, Kópavogur, Iceland; and Faculty of Medicine, University of Iceland, Reykjavik
| | | | - William S. Harris
- Department of Internal Medicine, Sanford School of Medicine, University of South Dakota, Sioux Falls
- OmegaQuant Analytics, LLC, Sioux Falls, SD
| | - Catherine Helmer
- Univ. Bordeaux, Inserm, Bordeaux Population Health Research Center, TUMR 1219, France
| | - Mai-Lis Hellenius
- Department of Medicine, Cardiology Unit, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Allison Hodge
- Centre for Epidemiology and Biostatistics, The University of Melbourne, Australia
| | - Frank B. Hu
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA
- Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
| | - Paul F. Jacques
- Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA
- USDA Jean Mayer Human Nutrition Research Center, Boston, MA
| | - Jan-Håkan Jansson
- Department of Public Health and Clinical Medicine, Research Unit Skellefteå, Umeå University, Umeå, Sweden
| | - Anya Kalsbeek
- Department of Mathematics and Statistics, Dordt College, Sioux Centre, IA
| | - Kay-Tee Khaw
- Department of Public Health and Primary Care, University of Cambridge School of Clinical Medicine, United Kingdom
| | - Woon-Puay Koh
- Saw Swee Hock School of Public Health, National University of Singapore
- Duke-NUS Medical School, Singapore
| | - Markku Laakso
- Institute of Clinical Medicine, Internal Medicine, University of Eastern Finland, Kuopio, Finland
| | - Karin Leander
- Unit of Cardiovascular Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Hung-Ju Lin
- Department of Internal Medicine, National Taiwan University Hospital, Taipei
| | - Lars Lind
- Department of Medical Sciences, Uppsala University, Sweden
| | - Robert Luben
- Department of Public Health and Primary Care, University of Cambridge School of Clinical Medicine, United Kingdom
| | - Juhua Luo
- Department of Epidemiology and Biostatistics, Indiana University, Bloomington
| | - Barbara McKnight
- Department of Biostatistics, School of Public Health, University of Washington, Seattle
| | - Jaakko Mursu
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio
| | - Toshiharu Ninomiya
- Department of Epidemiology and Public Health, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kim Overvad
- Department of Public Health, Section for Epidemiology, Aarhus University, Denmark
- Department of Cardiology, Aalborg University Hospital, Denmark
| | - Bruce M. Psaty
- Cardiovascular Health Study, Departments of Medicine, Epidemiology, and Health Services, University of Washington, Seattle
- Kaiser Permanente Washington Health Research Institute, Seattle
| | - Eric Rimm
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA
- Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
| | - Matthias B. Schulze
- Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
| | | | | | - Albert V. Smith
- Icelandic Heart Association, Kópavogur, Iceland; and Faculty of Medicine, University of Iceland, Reykjavik
| | - Brian T. Steffen
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis
| | - Lyn Steffen
- Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis
| | - Qi Sun
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA
- Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
| | | | - Michael Y. Tsai
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis
| | - Hugh Tunstall-Pedoe
- Cardiovascular Epidemiology Unit, Institute of Cardiovascular Research, University of Dundee, United Kingdom
| | - Matti I. J. Uusitupa
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio
| | - Rob M van Dam
- Saw Swee Hock School of Public Health, National University of Singapore
| | - Jenna Veenstra
- Department of Mathematics and Statistics, Dordt College, Sioux Centre, IA
| | - W.M. Monique Verschuren
- Centre for Nutrition, Prevention and Health Services, National Institute of Public Health and the Environment, Bilthoven, The Netherlands
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, The Netherlands
| | - Nick Wareham
- Medical Research Council Epidemiology Unit, University of Cambridge, United Kingdom
| | - Walter Willett
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA
- Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
| | - Mark Woodward
- The George Institute for Global Health and the Faculty of Medicine, University of New South Wales, Sydney, Australia
- Cardiovascular Epidemiology Unit, Institute of Cardiovascular Research, University of Dundee, United Kingdom
- The George Institute for Global Health, University of Oxford, United Kingdom
| | - Jian-Min Yuan
- Division of Cancer Control and Population Sciences, UPMC Hillman Cancer, and Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, PA
| | - Renata Micha
- Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA
| | - Rozenn N Lemaitre
- Cardiovascular Health Research Unit, Department of Medicine, University of Washington, Seattle
| | - Dariush Mozaffarian
- Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA
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Takkunen MJ, de Mello VD, Schwab US, Kuusisto J, Vaittinen M, Ågren JJ, Laakso M, Pihlajamäki J, Uusitupa MIJ. Gene-diet interaction of a common FADS1
variant with marine polyunsaturated fatty acids for fatty acid composition in plasma and erythrocytes among men. Mol Nutr Food Res 2015; 60:381-9. [DOI: 10.1002/mnfr.201500594] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 09/13/2015] [Accepted: 09/29/2015] [Indexed: 01/12/2023]
Affiliation(s)
- Markus J. Takkunen
- Institute of Public Health and Clinical Nutrition; Faculty of Health Sciences; University of Eastern Finland; Kuopio Finland
| | - Vanessa D. de Mello
- Institute of Public Health and Clinical Nutrition; Faculty of Health Sciences; University of Eastern Finland; Kuopio Finland
| | - Ursula S. Schwab
- Institute of Public Health and Clinical Nutrition; Faculty of Health Sciences; University of Eastern Finland; Kuopio Finland
- Clinical Nutrition and Obesity Center; Kuopio University Hospital; Kuopio Finland
| | - Johanna Kuusisto
- Department of Medicine; University of Eastern Finland and Kuopio University Hospital; Kuopio Finland
| | - Maija Vaittinen
- Institute of Public Health and Clinical Nutrition; Faculty of Health Sciences; University of Eastern Finland; Kuopio Finland
| | - Jyrki J. Ågren
- Institute of Biomedicine; University of Eastern Finland; Kuopio Finland
| | - Markku Laakso
- Department of Medicine; University of Eastern Finland and Kuopio University Hospital; Kuopio Finland
| | - Jussi Pihlajamäki
- Institute of Public Health and Clinical Nutrition; Faculty of Health Sciences; University of Eastern Finland; Kuopio Finland
- Clinical Nutrition and Obesity Center; Kuopio University Hospital; Kuopio Finland
| | - Matti I. J. Uusitupa
- Institute of Public Health and Clinical Nutrition; Faculty of Health Sciences; University of Eastern Finland; Kuopio Finland
- Research Unit; Kuopio University Hospital; Kuopio Finland
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Takkunen MJ, Schwab US, de Mello VDF, Eriksson JG, Lindström J, Tuomilehto J, Uusitupa MIJ. Longitudinal associations of serum fatty acid composition with type 2 diabetes risk and markers of insulin secretion and sensitivity in the Finnish Diabetes Prevention Study. Eur J Nutr 2015; 55:967-79. [DOI: 10.1007/s00394-015-0911-4] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Accepted: 04/22/2015] [Indexed: 01/08/2023]
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Takkunen MJ, de Mello VDF, Schwab US, Ågren JJ, Kuusisto J, Uusitupa MIJ. Associations of erythrocyte membrane fatty acids with the concentrations of C-reactive protein, interleukin 1 receptor antagonist and adiponectin in 1373 men. Prostaglandins Leukot Essent Fatty Acids 2014; 91:169-74. [PMID: 25087591 DOI: 10.1016/j.plefa.2014.07.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Accepted: 07/04/2014] [Indexed: 12/31/2022]
Abstract
Dietary and endogenous fatty acids could play a role in low-grade inflammation. In this cross-sectional study the proportions of erythrocyte membrane fatty acids (EMFA) and the concentrations of C-reactive protein (CRP), interleukin-1 receptor antagonist (IL-1Ra) and adiponectin were measured and their confounder-adjusted associations examined in 1373 randomly selected Finnish men aged 45-70 years participating in the population based Metsim study in Eastern Finland. The sum of n-6 EMFAs, without linoleic acid (LA), was positively associated with concentrations of CRP and IL-1Ra (r partial=0.139 and r partial=0.115, P<0.001). These associations were especially strong among lean men (waist circumference <94 cm; r partial=0.156 and r partial=0.189, P<0.001). Total n-3 EMFAs correlated inversely with concentrations of CRP (r partial=-0.098, P<0.001). Palmitoleic acid (16:1n-7) correlated positively with CRP (r partial=0.096, P<0.001). Cis-vaccenic acid (18:1n-7) was associated with high concentrations of adiponectin (r partial=0.139, P<0.001). In conclusion, n-6 EMFAs, except for LA, correlated positively with the inflammatory markers. Palmitoleic acid was associated with CRP, whereas, interestingly, its elongation product, cis-vaccenic acid, associated with anti-inflammatory adiponectin.
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Affiliation(s)
- M J Takkunen
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland.
| | - V D F de Mello
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
| | - U S Schwab
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland; Institute of Clinical Medicine, Internal Medicine, Kuopio University Hospital, Kuopio, Finland
| | - J J Ågren
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
| | - J Kuusisto
- Department of Medicine and Kuopio University Hospital, University of Eastern Finland, Kuopio, Finland
| | - M I J Uusitupa
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland; Research Unit, Kuopio University Hospital, Kuopio, Finland
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Tammela LI, Pääkkönen A, Karhunen LJ, Karhu J, Uusitupa MIJ, Kuikka JT. Brain electrical activity during food presentation in obese binge-eating women. Clin Physiol Funct Imaging 2010; 30:135-40. [DOI: 10.1111/j.1475-097x.2009.00916.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Juvonen KR, Purhonen AK, Salmenkallio-Marttila M, Lähteenmäki L, Laaksonen DE, Herzig KH, Uusitupa MIJ, Poutanen KS, Karhunen LJ. Viscosity of oat bran-enriched beverages influences gastrointestinal hormonal responses in healthy humans. J Nutr 2009; 139:461-6. [PMID: 19176745 DOI: 10.3945/jn.108.099945] [Citation(s) in RCA: 194] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Viscous fibers, including beta-glucan in oat bran, favorably affect satiety as well as postprandial carbohydrate and lipid metabolism. However, effects of fiber viscosity on modulation of satiety-related gut hormone responses are largely unknown. We examined the effects of modified oat bran, with or without its natural viscosity, on sensations of appetite and satiety-related gastrointestinal (GI) hormone responses to establish the relevance of viscosity of beta-glucan in oat bran. Twenty healthy, normal-weight participants (16 female, 4 male, aged 22.6 +/- 0.7 y) ingested 2 isocaloric (1250 kJ) 300-mL oat bran beverages with low or high viscosity (carbohydrates, 57.9 g; protein, 7.8 g; fat, 3.3 g; fiber, 10.2 g) after a 12-h fast in randomized order. Viscosity of the low-viscosity oat bran beverage was reduced by beta-glucanase treatment. Blood samples were drawn before and 15, 30, 45, 60, 90, 120, and 180 min after beverage consumption. The oat bran beverage with low viscosity induced a greater postprandial increase in satiety (P = 0.048) and plasma glucose (P < 0.001), insulin (P = 0.008), cholecystokinin (P = 0.035), glucagon-like peptide 1 (P = 0.037), and peptide YY (P = 0.051) and a greater decrease in postprandial ghrelin (P = 0.009) than the beverage with high-viscosity oat bran. Gastric emptying as measured by paracetamol absorption was also faster (P = 0.034) after low-viscosity oat bran beverage consumption. In conclusion, viscosity differences in oat beta-glucan in a liquid meal with identical chemical composition strongly influenced not only glucose and insulin responses, but also short-term gut hormone responses, implying the importance of food structure in the modulation of postprandial satiety-related physiology.
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Affiliation(s)
- Kristiina R Juvonen
- Department of Clinical Nutrition, Food and Health Research Centre, School of Public Health and Clinical Nutrition, University of Kuopio, 70211 Kuopio, Finland.
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Erkkilä AT, Schwab US, de Mello VDF, Lappalainen T, Mussalo H, Lehto S, Kemi V, Lamberg-Allardt C, Uusitupa MIJ. Effects of fatty and lean fish intake on blood pressure in subjects with coronary heart disease using multiple medications. Eur J Nutr 2008; 47:319-28. [PMID: 18665413 DOI: 10.1007/s00394-008-0728-5] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2008] [Accepted: 07/09/2008] [Indexed: 02/07/2023]
Abstract
BACKGROUND Intake of fish and long-chain n-3 fatty acids has been of wide interest due to their beneficial effects on cardiovascular risk factors and lower coronary heart disease (CHD) risk. AIM OF THE STUDY The aim of this pilot study was to examine the effects of fatty fish and lean (white) fish on fatty acid composition of serum lipids and cardiovascular risk factors in subjects with CHD using multiple drugs for this condition. METHODS The study was an 8-week controlled, parallel intervention. Inclusion criteria were myocardial infarction or unstable ischemic attack, age under 70 years, use of betablockers and presence of sinus rhythm. The subjects were randomized to one of the following groups: 4 meals/week fatty fish (n = 11), 4 meals/week lean fish (n = 12) and control diet including lean meat (n = 10). RESULTS The mean (+/-SD) of reported fish meals per week was 4.3 +/- 0.4, 4.7 +/- 1.1 and 0.6 +/- 0.4 in the groups, respectively. The proportions of eicosapentaenoic and docosahexaenoic acids in serum lipids increased in the fatty fish group only (P < 0.05). Systolic and diastolic blood pressure levels decreased in the lean fish group (0 vs. 8 week: 3.5 +/- 3.2 and 4.6 +/- 3.6%, respectively, P < 0.05). Serum total triglyceride concentration did not significantly change. HDL cholesterol concentration change differed among groups but without significant post hoc differences. Apolipoprotein A-1 concentration decreased in the control group (0 vs. 8 week, P < 0.05). Coagulation factors, 25-hydroxy vitamin D, and heart rate variability (24 h Holter) did not change among the groups. CONCLUSIONS Our results suggest that intake of lean fish at least four times per week could reduce blood pressure levels in CHD patients.
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Affiliation(s)
- Arja T Erkkilä
- Dept of Public Health, School of Public Health and Clinical Nutrition, University of Kuopio, Kuopio, Finland
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Lindi V, Schwab U, Louheranta A, Vessby B, Hermansen K, Tapsell L, Riccardi G, Rivellese AA, Laakso M, Uusitupa MIJ. The G-250A polymorphism in the hepatic lipase gene promoter is associated with changes in hepatic lipase activity and LDL cholesterol: The KANWU Study. Nutr Metab Cardiovasc Dis 2008; 18:88-95. [PMID: 17327141 DOI: 10.1016/j.numecd.2006.09.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2006] [Revised: 09/29/2006] [Accepted: 09/29/2006] [Indexed: 01/19/2023]
Abstract
BACKGROUND AND AIMS Hepatic lipase (HL) catalyzes the hydrolysis of triglycerides and phospholipids from lipoproteins, and promotes the hepatic uptake of lipoproteins. A common G-250A polymorphism in the promoter of the hepatic lipase gene (LIPC) has been described. The aim was to study the effects of the G-250A polymorphism on HL activity, serum lipid profile and insulin sensitivity. METHODS AND RESULTS Altogether 151 healthy subjects (age 49+/-8 years, BMI 26.5+/-3.0kg/m(2)) were randomly assigned for 3 months to an isoenergetic diet containing either a high proportion of saturated fatty acids (SFA diet) or monounsaturated fatty acids (MUFA diet). Within groups there was a second random assignment to supplements with fish oil (3.6g n-3 FA/day) or placebo. At baseline, the A-250A genotype was associated with high serum LDL cholesterol concentration (P=0.030 among three genotypes). On the MUFA diet carriers of the A-250A genotype presented a greater decrease in LDL cholesterol concentration than subjects with other genotypes (P=0.007 among three genotypes). The rare -250A allele was related to low HL activity (P<0.001 among three genotypes). The diet did not affect the levels of HL activity among the genotypes. CONCLUSION The A-250A genotype of the LIPC gene was associated with high LDL cholesterol concentration, but the MUFA-enriched diet reduced serum LDL cholesterol concentration especially in subjects with the A-250A genotype.
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Affiliation(s)
- Virpi Lindi
- University of Kuopio, Department of Clinical Nutrition, P.O. Box 1627, FIN-70211 Kuopio, Finland
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Erkkilä AT, Schwab US, Agren JJ, Hallikainen M, Gylling H, Uusitupa MIJ. Moderate increase in dietary sucrose does not influence fasting or postprandial serum lipids regardless of the presence of apolipoprotein E2 allele in healthy subjects. Eur J Clin Nutr 2007; 61:1094-101. [PMID: 17228342 DOI: 10.1038/sj.ejcn.1602620] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To investigate whether a moderate increase in dietary sucrose intake induces different serum lipid responses in normolipidemic subjects with the epsilon 2 allele compared with subjects without the epsilon 2 allele. DESIGN Controlled, parallel study. SUBJECTS There were 15 subjects with the apolipoprotein E (APOE)3/2 genotype and 19 subjects with the APOE 3/3 or 3/4 genotype, whose mean+/-s.d. age was 48+/-14 and 35+/-10 years, respectively. All subjects had normal glucose metabolism. INTERVENTIONS The subjects were instructed to increase their sucrose intake by 40 g/day for 8 weeks and to decrease the intake of saturated and unsaturated fat to maintain energy balance. Dietary adherence was monitored using food records and the actual increase in sucrose intake was 39.8+/-18.4 g/day. Sixteen subjects (nine with APOE 3/2 genotype, seven with APOE 3/3 or 3/4 genotypes) participated also in an 8 h oral fat tolerance test at the beginning and at the end of the intervention. RESULTS Body weight remained stable during the intervention. Sucrose intake did not have a significant effect on fasting concentrations of serum total and lipoprotein lipids, plasma glucose, serum insulin, squalene and non-cholesterol sterols in either genotype group. Neither were there any changes in postprandial lipid or insulin responses. CONCLUSIONS Moderate increase in sucrose intake does not affect fasting or postprandial serum lipid responses in healthy subjects with or without the epsilon 2 allele.
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Affiliation(s)
- A T Erkkilä
- School of Public Health and Clinical Nutrition, University of Kuopio, Kuopio, Finland.
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Schwab US, Callaway JC, Erkkilä AT, Gynther J, Uusitupa MIJ, Järvinen T. Effects of hempseed and flaxseed oils on the profile of serum lipids, serum total and lipoprotein lipid concentrations and haemostatic factors. Eur J Nutr 2006; 45:470-7. [PMID: 17103080 DOI: 10.1007/s00394-006-0621-z] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/10/2006] [Indexed: 10/23/2022]
Abstract
BACKGROUND Both hempseed oil (HO) and flaxseed oil (FO) contain high amounts of essential fatty acids (FAs); i.e. linoleic acid (LA, 18:2n-6) and alpha-linolenic acid (ALA, 18:3n-3), but almost in opposite ratios. An excessive intake of one essential FA over the other may interfere with the metabolism of the other while the metabolisms of LA and ALA compete for the same enzymes. It is not known whether there is a difference between n-3 and n-6 FA of plant origin in the effects on serum lipid profile. AIM OF THE STUDY To compare the effects of HO and FO on the profile of serum lipids and fasting concentrations of serum total and lipoprotein lipids, plasma glucose and insulin, and haemostatic factors in healthy humans. METHODS Fourteen healthy volunteers participated in the study. A randomised, double-blind crossover design was used. The volunteers consumed HO and FO (30 ml/day) for 4 weeks each. The periods were separated by a 4-week washout period. RESULTS The HO period resulted in higher proportions of both LA and gamma-linolenic acid in serum cholesteryl esters (CE) and triglycerides (TG) as compared with the FO period (P < 0.001), whereas the FO period resulted in a higher proportion of ALA in both serum CE and TG as compared with the HO period (P < 0.001). The proportion of arachidonic acid in CE was lower after the FO period than after the HO period (P < 0.05). The HO period resulted in a lower total-to-HDL cholesterol ratio compared with the FO period (P = 0.065). No significant differences were found between the periods in measured values of fasting serum total or lipoprotein lipids, plasma glucose, insulin or hemostatic factors. CONCLUSIONS The effects of HO and FO on the profile of serum lipids differed significantly, with only minor effects on concentrations of fasting serum total or lipoprotein lipids, and no significant changes in concentrations of plasma glucose or insulin or in haemostatic factors.
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Affiliation(s)
- Ursula S Schwab
- Dept. of Clinical Nutrition, University of Kuopio, P.O. Box 1627, 70211, Kuopio, Finland.
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Erkkilä AT, Närvänen O, Lehto S, Uusitupa MIJ, Ylä-Herttuala S. Antibodies against oxidized LDL and cardiolipin and mortality in patients with coronary heart disease. Atherosclerosis 2005; 183:157-62. [PMID: 16216595 DOI: 10.1016/j.atherosclerosis.2005.02.026] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2004] [Revised: 02/09/2005] [Accepted: 02/21/2005] [Indexed: 11/20/2022]
Abstract
The association between antibodies against oxidized LDL (oxLDL) and cardiolipin and the risks of death and cardiovascular disease events were evaluated in patients with established coronary heart disease (CHD). The patients (mean age: 61 years, range: 33-74 years) were participants in the EUROASPIRE study; 108 of them had undergone coronary artery bypass surgery, 106 had balloon angioplasty, 101 had a diagnosis of acute myocardial infarction (AMI), and 98 acute myocardial ischemia. Antibodies against oxLDL and cardiolipin were measured and incidence of CHD events and deaths were followed up for 5 years in 284 men and 129 women. During the follow-up 36 patients died and 21 had AMI. After adjustment for cardiovascular disease risk factors the relative risks (RR [95% confidence interval]) of death were 1 (reference), 2.50 (0.97-6.49) and 2.21 (0.85-5.80) in increasing tertile categories of anti-oxLDL antibody titers, respectively (P for trend 0.16). The risks of CHD-death or AMI combined were 1 (reference), 2.61 (1.02-6.65) and 1.06 (0.37-3.03) in increasing tertile categories of anticardiolipin antibody titers, respectively (P for trend 0.03). In conclusion, the results suggest that antibodies against oxLDL and cardiolipin are not major predictors of risks of death and CHD events in patients with established CHD.
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Affiliation(s)
- Arja T Erkkilä
- Department of Clinical Nutrition, University of Kuopio, P.O. Box 1627, 70211 Kuopio, Finland.
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12
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Heikkinen AM, Niskanen LK, Salmi JA, Koulu M, Pesonen U, Uusitupa MIJ, Komulainen MH, Tuppurainen MT, Kröger H, Jurvelin J, Saarikoski S. Leucine7 to proline7 polymorphism in prepro-NPY gene and femoral neck bone mineral density in postmenopausal women. Bone 2004; 35:589-94. [PMID: 15336593 DOI: 10.1016/j.bone.2004.05.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2003] [Revised: 04/02/2004] [Accepted: 05/05/2004] [Indexed: 10/26/2022]
Abstract
Neuropeptide Y (NPY) is a versatile neurotransmitter that has recently been shown to regulate bone metabolism in animal and in vitro studies. We studied the influence of leucine7-to-proline7 (Leu7/Pro7) polymorphism of the NPY signal peptide gene on bone mineral density (BMD) before and after a 5-year hormone replacement therapy (HRT) in 316 early postmenopausal women participating in a randomized controlled trial nested in the population-based Kuopio Osteoporosis Risk Factor and Prevention (OSTPRE) study. The participants were randomized into two treatment groups: the HRT group (n = 146) received a sequential combination of 2 mg estradiol valerate and 1 mg cyproterone acetate and calcium lactate, 500 mg/day (equal to 93 mg Ca2+) alone or in combination with vitamin D3, 100-300 IU/day. The non-HRT group (n = 170) received calcium lactate, 500 mg alone or in combination with vitamin D3, 100-300 IU/day. BMDs of the lumbar spine (L2-4) and proximal femur were measured by using dual X-ray absorptiometry (DXA). The frequency of Leu7/Pro7 polymorphism was 15.2%. At baseline, there were no significant differences in the lumbar or femoral neck BMD between the subjects who had Leu7Pro7 polymorphism and the normal subjects. After 5 years, the BMD of the femoral neck remained unaltered and that of the lumbar spine increased by 1.7% in the HRT group, whereas both BMDs were decreased by 4-5% in the non-HRT group. After 5 years, the femoral neck BMD was significantly lower in those with the wild-type NPY polymorphism than in those with Leu7/Pro7 polymorphism (P = 0.040) in the non-HRT group. In the HRT group, the changes in BMD were quite modest and not significantly modified by Leu7/Pro7 genotype. We conclude that the Leu7/Pro7 polymorphism in NPY signal gene may favorably affect femoral neck BMD in postmenopausal women.
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Affiliation(s)
- Anna-Mari Heikkinen
- Department of Obstetrics and Gynecology, Kuopio University Hospital, FIN-70211 Kuopio, Finland
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Erkkilä AT, Lehto S, Pyörälä K, Uusitupa MIJ. n-3 Fatty acids and 5-y risks of death and cardiovascular disease events in patients with coronary artery disease. Am J Clin Nutr 2003; 78:65-71. [PMID: 12816772 DOI: 10.1093/ajcn/78.1.65] [Citation(s) in RCA: 134] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Data on the association of n-3 fatty acid content in serum lipids with mortality in patients with coronary artery disease (CAD) are limited. OBJECTIVE We hypothesized that a high proportion of n-3 fatty acids in serum lipids would be associated with reduced risks of death and coronary events in patients with established CAD. DESIGN We measured dietary intakes via food records and the fatty acid composition of serum cholesteryl esters (CEs) in 285 men and 130 women with CAD (x age: 61 y; range: 33-74 y). The patients participating in the EUROASPIRE (European Action on Secondary Prevention through Intervention to Reduce Events) study were followed up for 5 y. RESULTS During the follow-up, 36 patients died, 21 had myocardial infarctions, and 12 had strokes. The relative risks (RRs) of death adjusted for cardiovascular disease risk factors for subjects in the highest tertile of fatty acids in CEs compared with those in the lowest tertile were 0.33 (95% CI: 0.11, 0.96) for alpha-linolenic acid, 0.33 (0.12, 0.93) for eicosapentaenoic acid, and 0.31 (0.11, 0.87) for docosahexaenoic acid (P for trend = 0.063, 0.056, and 0.026, respectively). A high proportion of eicosapentaenoic acid in CEs was associated with a low risk of CAD death. Compared with no consumption, consumption of fish tended to be associated with a lower risk of death [1-57 g/d, RR = 0.50 (0.20, 1.28); > 57 g/d, RR = 0.37 (0.14, 1.00); P for trend = 0.059]. CONCLUSION High proportions of n-3 fatty acids in serum lipids are associated with a substantially reduced risk of death.
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Affiliation(s)
- Arja T Erkkilä
- Department of Clinical Nutrition, University of Kuopio and Kuopio University Hospital, Kuopio, Finland.
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Abstract
OBJECTIVE To study tolerance to lactose in milk chocolate among symptomatic lactose maldigesters. DESIGN Randomized cross-over study. SUBJECTS Twenty-seven adult lactose maldigesters with symptomatic lactose intolerance. METHODS A 100 g chocolate sample prepared with whole milk (12 g lactose), whole-milk powder (12 g lactose), low-lactose milk powder (2 g lactose) or lactose-free milk powder was eaten after an overnight fast. Gastrointestinal symptoms (flatulence, abdominal bloating, abdominal pain, borgorygmi and nausea) were recorded in a questionnaire during the following 8 h. Bowel movements and stool consistency were also registered during the test day. RESULTS The numbers of persons reporting different gastrointestinal symptoms or any of the symptoms did not differ significantly after eating the chocolate samples. No statistical differences were found in the estimated strength of the different symptoms or the total strength of all symptoms combined. Differences in the bowel frequency and stool consistency were also non-significant. CONCLUSIONS Lactose malabsorbers with self-reported lactose intolerence did not differ in their response to milk chocolate samples containing different amounts of lactose.
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Affiliation(s)
- R M K Järvinen
- Department of Clinical Nutrition, University of Kuopio, Kuopio, Finland.
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Kolehmainen M, Uusitupa MIJ, Alhava E, Laakso M, Vidal H. Effect of the Pro12Ala polymorphism in the peroxisome proliferator-activated receptor (PPAR) gamma2 gene on the expression of PPARgamma target genes in adipose tissue of massively obese subjects. J Clin Endocrinol Metab 2003; 88:1717-22. [PMID: 12679463 DOI: 10.1210/jc.2002-020603] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
The aim was to study the effect of the Pro12Ala polymorphism of the peroxisome proliferator-activated receptor (PPAR) gamma2 gene on the expression of PPARgamma target genes in adipose tissue. Adipose tissue samples were collected from 30 massively obese subjects (10 men and 20 women) from omental, sc abdominal, and femoral depots. The mRNA expression of PPARgamma1, PPARgamma2, lipoprotein lipase, p85alpha phosphatidylinositol 3-kinase, and uncoupling protein 2 were quantified by reverse transcription-competitive PCR. The genotypes of Pro12Ala polymorphism were determined by single-strand conformation polymorphism analysis. The frequency of the Ala12 allele was 13.3% (8 Pro12Ala and 22 Pro12Pro). There were no differences in body weight, fat mass, and fasting serum leptin between the genotypes. The mRNA expression of p85alpha phosphatidylinositol 3-kinase was significantly lower in the omental fat of the Pro12Ala carriers than the Pro12Pro carriers (P < 0.01). It also appeared that PPARgamma2 expression was higher in men with Ala12 allele (P < 0.01). Interestingly, particularly in women, the expression of both PPARgamma splice variants was lower in omental than sc fat independently of the genotype (P < 0.05-0.01). The common Pro12Ala polymorphism of the PPARgamma2 gene has minor influence on mRNA expression of PPARgamma target genes in adipose tissue of obese subjects. Expression of both PPARgamma splice variants is dependent on fat depot: omental fat shows lower mRNA levels, compared with sc fat depots.
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Affiliation(s)
- M Kolehmainen
- Department of Clinical Nutrition and Food and Health Research Center, University of Kuopio, Finland.
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16
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Louheranta AM, Sarkkinen ES, Vidgren HM, Schwab US, Uusitupa MIJ. Association of the fatty acid profile of serum lipids with glucose and insulin metabolism during 2 fat-modified diets in subjects with impaired glucose tolerance. Am J Clin Nutr 2002; 76:331-7. [PMID: 12145003 DOI: 10.1093/ajcn/76.2.331] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Both the amount and quality of dietary fat can modify glucose and insulin metabolism. OBJECTIVE The objective was to examine the relation between serum lipid fatty acids and glucose metabolism before and after the consumption of a diet enriched in either monounsaturated (Mono diet) or polyunsaturated (Poly diet) fatty acids. DESIGN After consuming a high-saturated-fat run-in diet for 3 wk, 31 subjects with impaired glucose tolerance were randomly counseled to consume the Mono [40% fat; 11%, 19%, and 8% of energy as saturated, monounsaturated, and polyunsaturated fatty acids (S:M:P), respectively] or the Poly (34% fat; S:M:P of 11%:10%:10%) diet for 8 wk. Serum lipid fatty acids were measured, and an intravenous-glucose-tolerance test was performed at baseline and at 8 wk. RESULTS At baseline, a higher glucose effectiveness (S(G)) was associated with higher proportions of oleic (r = 0.57, P = 0.04) and alpha-linolenic (r = 0.64, P = 0.01) acids in phospholipids. An increase in the proportions of oleic and alpha-linolenic acids in phospholipids was associated with a decrease in fasting plasma glucose [r = -0.53 (P = 0.002) and r = -0.47 (P = 0.009), respectively]. An increase in the S(G) was associated with an increase in the proportion of oleic acid (r = 0.55, P = 0.004) and with a decrease in that of arachidonic acid (r = -0.40, P = 0.04) in phospholipids. CONCLUSIONS The beneficial changes in fasting plasma glucose and in the S(G) during the Mono diet were associated with alterations in the proportions of oleic, alpha-linolenic, and arachidonic acids in phospholipids.
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Lindi VI, Uusitupa MIJ, Lindström J, Louheranta A, Eriksson JG, Valle TT, Hämäläinen H, Ilanne-Parikka P, Keinänen-Kiukaanniemi S, Laakso M, Tuomilehto J. Association of the Pro12Ala polymorphism in the PPAR-gamma2 gene with 3-year incidence of type 2 diabetes and body weight change in the Finnish Diabetes Prevention Study. Diabetes 2002; 51:2581-6. [PMID: 12145174 DOI: 10.2337/diabetes.51.8.2581] [Citation(s) in RCA: 152] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The association of the Pro12Ala polymorphism of the PPAR-gamma2 gene with the incidence of type 2 diabetes was investigated in 522 subjects with impaired glucose tolerance (IGT) participating in the Finnish Diabetes Prevention Study. Subjects were randomized to either an intensive diet and exercise group or a control group. By 3 years of intervention, the odds ratio of the development of type 2 diabetes for subjects with the Ala12 allele was 2.11-fold compared with that for subjects with the Pro12Pro genotype (95% CI 1.20-3.72). The risk for type 2 diabetes increased also in subjects who gained weight or belonged to the control group. In the intervention group, subjects with the Ala12Ala genotype lost more weight during the follow-up than subjects with other genotypes (Pro12Pro vs. Ala12Ala P = 0.043), and none of subjects with the Ala12Ala genotype developed type 2 diabetes in this group. In conclusion, the Ala12 allele may predispose to the development of type 2 diabetes in obese subjects with IGT. However, beneficial changes in diet, increases in physical activity, and weight loss may reverse, to some extent, the diabetogenic impact of the Ala12 allele, possibly due to an improved insulin sensitivity.
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Affiliation(s)
- Virpi I Lindi
- Department of Clinical Nutrition, University of Kuopio and Kuopio University Hospital, Kuopio, Finland.
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Heo M, Leibel RL, Fontaine KR, Boyer BB, Chung WK, Koulu M, Karvonen MK, Pesonen U, Rissanen A, Laakso M, Uusitupa MIJ, Chagnon Y, Bouchard C, Donohoue PA, Burns TL, Shuldiner AR, Silver K, Andersen RE, Pedersen O, Echwald S, Sørensen TIA, Behn P, Permutt MA, Jacobs KB, Elston RC, Hoffman DJ, Gropp E, Allison DB. A meta-analytic investigation of linkage and association of common leptin receptor (LEPR) polymorphisms with body mass index and waist circumference. Int J Obes (Lond) 2002; 26:640-6. [PMID: 12032747 DOI: 10.1038/sj.ijo.0801990] [Citation(s) in RCA: 95] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2001] [Revised: 10/25/2001] [Accepted: 12/18/2001] [Indexed: 11/09/2022]
Abstract
METHODS We analyzed data pooled from nine studies on the human leptin receptor (LEPR) gene for the association of three alleles (K109R, Q223R and K656N) of LEPR with body mass index (BMI; kg/m(2)) and waist circumference (WC). A total of 3263 related and unrelated subjects from diverse ethnic backgrounds including African-American, Caucasian, Danish, Finnish, French Canadian and Nigerian were studied. We tested effects of individual alleles, joint effects of alleles at multiple loci, epistatic effects among alleles at different loci, effect modification by age, sex, diabetes and ethnicity, and pleiotropic genotype effects on BMI and WC. RESULTS We found that none of the effects were significant at the 0.05 level. Heterogeneity tests showed that the variations of the non-significant effects are within the range of sampling variation. CONCLUSIONS We conclude that, although certain genotypic effects could be population-specific, there was no statistically compelling evidence that any of the three LEPR alleles is associated with BMI or WC in the overall population.
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Affiliation(s)
- M Heo
- New York Obesity Research Center, St Luke's-Roosevelt Hospital, Columbia University College of Physicians and Surgeons, New York, NY, USA
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Erkkilä AT, Lindi V, Lehto S, Pyörälä K, Laakso M, Uusitupa MIJ. Variation in the fatty acid binding protein 2 gene is not associated with markers of metabolic syndrome in patients with coronary heart disease. Nutr Metab Cardiovasc Dis 2002; 12:53-59. [PMID: 12189904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
BACKGROUND AND AIM It has been suggested that the threonine (Thr) 54 allele of the intestinal fatty acid binding protein 2 (FABP2) gene is associated with insulin resistance and affects the fatty acid composition of serum lipids. Our aim was to investigate the frequency of the alanine (Ala) 54Thr polymorphism of the FABP2 gene in patients with coronary heart disease (CHD), and the association between the polymorphism and the markers of metabolic syndrome, serum lipid levels and the fatty acid profile of serum lipids. METHODS AND RESULTS A total of 414 CHD patients (mean age 61 years, range 33-74) participated in the cross-sectional EUROASPIRE (European Action on Secondary Prevention through Intervention to Reduce Events) Study. Markers of metabolic syndrome included fasting plasma glucose concentration, serum high-density lipoprotein cholesterol and triglycerides (TG), waist circumference, the waist/hip ratio, body mass index (BMI) and blood pressure (BP). The frequency of the Thr54 allele was similar in the CHD patients (27.2%) and control subjects from two independent studies (27.8% and 28.7%). There were no significant differences in plasma glucose, serum lipids, BP, BMI, waist circumference or waist/hip ratio among the genotypes. Genotype frequency was not associated with the prevalence of diabetes or metabolic syndrome, but metabolic syndrome (as defined by National Cholesterol Education Program criteria) tended to be more frequent in subjects with the Thr/Thr genotype (p = 0.095). There were no differences in the fatty acid profiles of serum cholesteryl esters, TG or phospholipids among the genotypes. CONCLUSIONS The Ala54Thr polymorphism of the FABP2 gene is not associated with CHD, markers of the metabolic syndrome, or the fatty acid profile of serum lipids in Finnish CHD patients.
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Affiliation(s)
- A T Erkkilä
- Department of Clinical Nutrition, University of Kuopio, P.O. Box 1627, 70211 Kuopio, Finland.
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Erkkilä AT, Lindi V, Lehto S, Laakso M, Uusitupa MIJ. Association of leucine 7 to proline 7 polymorphism in the preproneuropeptide Y with serum lipids in patients with coronary heart disease. Mol Genet Metab 2002; 75:260-4. [PMID: 11914038 DOI: 10.1006/mgme.2002.3302] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Leucine 7 (Leu7) to proline 7 (Pro7) substitution in the neuropeptide Y (NPY) gene has been associated with higher serum total and low-density lipoprotein (LDL) cholesterol levels, particularly in obese subjects. We investigated the frequency of the Pro7 allele and the association of the polymorphism with serum lipid levels in patients with coronary heart disease (CHD). A total of 414 CHD patients (mean age 61 years, range 33-74) participated in the cross-sectional EUROASPIRE study. Of the subjects 39% used lipid-lowering drugs. The frequency of the Pro7 allele in CHD patients (0.082) did not differ from that in control subjects (0.071). The mean (+/-SD) serum total cholesterol concentration was higher in women with the Pro7 allele (7.57 +/- 0.57 mmol/L, n = 8) than in women with the Leu7Leu genotype (6.69 +/- 1.01 mmol/L, n = 69, P = 0.019), when subjects using lipid-lowering medication were excluded. In contrast, serum total cholesterol concentration did not significantly differ between the genotypes in men. The Leu7Pro polymorphism was not associated with serum LDL, high-density lipoprotein (HDL) cholesterol, and triglyceride concentrations. In conclusion, the Pro7 allele in the NPY gene was associated with higher serum total cholesterol concentration only in women with CHD who did not use lipid-lowering drugs.
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Affiliation(s)
- Arja T Erkkilä
- Department of Clinical Nutrition, University of Kuopio, Kuopio, Finland.
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Abstract
BACKGROUND Six to 12 months of ingestion of moderate amounts of oats does not have a harmful effect in adult patients with coeliac disease. As the safety of long term intake of oats in coeliac patients is not known, we continued our previous 6-12 month study for five years. AIM To assess the safety of long term ingestion of oats in the diet of coeliac patients. PATIENTS In our previous study, the effects of a gluten free diet and a gluten free diet including oats were compared in a randomised trial involving 92 adult patients with coeliac disease (45 in the oats group, 47 in the control group). After the initial phase of 6-12 months, patients in the oats group were allowed to eat oats freely in conjunction with an otherwise gluten free diet. After five years, 35 patients in the original oats group (23 still on an oats diet) and 28 in the control group on a conventional gluten free diet were examined. METHODS Clinical and nutritional assessment, duodenal biopsies for conventional histopathology and histomorphometry, and measurement of antiendomysial, antireticulin, and antigliadin antibodies. RESULTS There were no significant differences between controls and those patients consuming oats with respect to duodenal villous architecture, inflammatory cell infiltration of the duodenal mucosa, or antibody titres after five years of follow up. In both groups histological and histomorphometric indexes improved equally with time. CONCLUSIONS This study provides the first evidence of the long term safety of oats as part of a coeliac diet in adult patients with coeliac disease. It also appears that the majority of coeliac patients prefer oats in their diet.
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Affiliation(s)
- E K Janatuinen
- Gastroenterological Unit, Department of Medicine, Kuopio University Hospital, Finland
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Schwab US, Agren JJ, Valve R, Hallikainen MA, Sarkkinen ES, Jauhiainen M, Karvonen MK, Pesonen U, Koulu M, Uusitupa MIJ, Savolainen MJ. The impact of the leucine 7 to proline 7 polymorphism of the neuropeptide Y gene on postprandial lipemia and on the response of serum total and lipoprotein lipids to a reduced fat diet. Eur J Clin Nutr 2002; 56:149-56. [PMID: 11857048 DOI: 10.1038/sj.ejcn.1601297] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2001] [Revised: 05/22/2001] [Accepted: 06/25/2001] [Indexed: 11/08/2022]
Abstract
OBJECTIVE The aim of the study was to examine the impact of the leucine7 to proline7 (Leu7Pro) polymorphism of the NPY gene on postprandial (PP) lipemia, post-heparin plasma lipoprotein lipase (LPL) and hepatic lipase (HL) activities, and the response of serum lipids to a reduced fat diet. DESIGN AND SUBJECTS Seven middle-aged obese subjects with Leu7Pro genotype were matched with seven subjects with Leu7Leu genotype for gender, age, apolipoprotein E phenotype and BMI. These 14 subjects participated in the oral 8 h fat tolerance test. Sixty-eight slightly obese middle-aged subjects (10 with the Leu7Pro genotype) had participated in intervention studies and consumed a reduced fat diet for 8 weeks. RESULTS There were no statistically significant differences in PP areas under the curve of plasma total triglycerides (TG), chylomicron TG, VLDL-TG or insulin between the genotype groups. The TG-to-cholesterol (C) ratio in VLDL was significantly lower in the subjects with Leu7Pro genotype compared to those with the Leu7Leu genotype at time points 30 min and 1 h in the fat tolerance test. Heparin-induced activities of LPL or HL or the response of serum total or LDL-C to the reduced fat diet did not differ between the groups. CONCLUSIONS The NPY genotype neither affects the magnitude of postprandial lipemia induced by a fat tolerance test nor the response of serum total lipids or lipids in different lipoprotein classes to the reduced fat diet. However, this preliminary study suggests that there might be compositional differences in the lipoprotein particles between the genotype groups that affect postprandial lipid metabolism. SPONSORSHIP The Council for Health Sciences of the Academy of Finland, Kuopio University Hospital and the National Technology Agency, Finland.
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Affiliation(s)
- U S Schwab
- Department of Clinical Nutrition, University of Kuopio, Kuopio, Finland.
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Kolehmainen M, Vidal H, Ohisalo JJ, Pirinen E, Alhava E, Uusitupa MIJ. Hormone sensitive lipase expression and adipose tissue metabolism show gender difference in obese subjects after weight loss. Int J Obes (Lond) 2002; 26:6-16. [PMID: 11791141 DOI: 10.1038/sj.ijo.0801858] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2001] [Revised: 06/12/2001] [Accepted: 07/13/2001] [Indexed: 11/09/2022]
Abstract
OBJECTIVE The effect of weight reduction on hormone sensitive lipase (HSL) and lipoprotein lipase (LPL) gene expression and their relationship with adipose tissue metabolism were studied in massively obese men and women. SUBJECTS Seventeen obese subjects (eight men, nine women) participated in the study (age 44+/-2 y, weight 145+/-8 kg, fat 40+/-2% of body mass, mean+/-s.e.m.), who were going through a gastric-banding operation for weight reduction. MEASUREMENTS HSL and LPL mRNA expressions were analyzed using the reverse transcription competitive polymerase chain reaction. Subcutaneous fat lipolysis was measured in vivo by microdialysis and in vitro in isolated subcutaneous abdominal adipocytes. Measurements were done before and after 1 y of weight reduction. RESULTS Significant reductions in weight (for men -20.3+/-2.5%, for women -18.3+/-2.1% (mean+/-s.e.m.) and fat mass (for men -27.6+/-7.9%, for women -21.8+/-3.9%) were observed in both genders. In women HSL mRNA expression decreased by 31% (P=0.008) and LPL expression increased slightly, but nonsignificantly (42%, P=0.110). These changes were not observed in men. In men, inhibition of lipolysis with alpha(2)-adrenergic and adenosine agonist was improved (P=0.001) in isolated adipocytes. CONCLUSIONS This study uncovers new differences between genders in adipocyte metabolism along with weight reduction. In women, the observed changes in HSL and LPL gene expression suggest that deposition of lipids into adipose tissue might be favored after weight reduction. In men, the results indicate improved responsiveness to inhibition in adipose tissue metabolism along with weight reduction.
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Affiliation(s)
- M Kolehmainen
- Department of Clinical Nutrition, University of Kuopio and Kuopio University Hospital, Kuopio, Finland.
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