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Hung HC, Tsai SF, Chou HW, Tsai MJ, Hsu PL, Kuo YM. Dietary fatty acids differentially affect secretion of pro-inflammatory cytokines in human THP-1 monocytes. Sci Rep 2023; 13:5511. [PMID: 37016048 PMCID: PMC10073224 DOI: 10.1038/s41598-023-32710-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 03/31/2023] [Indexed: 04/06/2023] Open
Abstract
Monocytes are a major population of circulating immune cells that play a crucial role in producing pro-inflammatory cytokines in the body. The actions of monocytes are known to be influenced by the combinations and concentrations of certain fatty acids (FAs) in blood and dietary fats. However, systemic comparisons of the effects of FAs on cytokine secretion by monocytes have not be performed. In this study, we compared how six saturated FAs (SFAs), two monounsaturated FAs (MUFAs), and seven polyunsaturated FAs (PUFAs) modulate human THP-1 monocyte secretion of TNF, IL-1β, and IL-6 in the absence or presence of lipopolysaccharide. SFAs generally stimulated resting THP-1 cells to secrete pro-inflammatory cytokines, with stearic acid being the most potent species. In contrast, MUFAs and PUFAs inhibited lipopolysaccharide-induced secretion of pro-inflammatory cytokines. Interestingly, the inhibitory potentials of MUFAs and PUFAs followed U-shaped (TNF and IL-1β) or inverted U-shaped (IL-6) dose-response curves. Among the MUFAs and PUFAs that were analyzed, docosahexaenoic acid (C22:6 n-3) exhibited the largest number of double bonds and was found to be the most potent anti-inflammatory compound. Together, our findings reveal that the chemical compositions and concentrations of dietary FAs are key factors in the intricate regulation of monocyte-mediated inflammation.
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Affiliation(s)
- Hao-Chang Hung
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, 81362, Taiwan
| | - Sheng-Feng Tsai
- Department of Cell Biology and Anatomy, College of Medicine, National Cheng Kung University, 1 Ta Hsueh Road, Tainan, 70101, Taiwan
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Hsuan-Wen Chou
- Division of Endocrinology and Metabolism, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, 70403, Taiwan
| | - Ming-Jun Tsai
- School of Medicine, College of Medicine, China Medical University, Taichung, 40402, Taiwan
- Department of Neurology, China Medical University Hospital, Taichung, 40447, Taiwan
- Department of Neurology, An-Nan-Hospital, China Medical University, Tainan, 709204, Taiwan
| | - Pei-Ling Hsu
- Department of Anatomy, School of Medicine, College of Medicine, Kaohsiung Medical University, 100 Shih-Chuan 1St Road, Kaohsiung, 80708, Taiwan.
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, 80708, Taiwan.
| | - Yu-Min Kuo
- Department of Cell Biology and Anatomy, College of Medicine, National Cheng Kung University, 1 Ta Hsueh Road, Tainan, 70101, Taiwan.
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, 70101, Taiwan.
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2
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Zhang X, Yang Y, Su J, Zheng X, Wang C, Chen S, Liu J, Lv Y, Fan S, Zhao A, Chen T, Jia W, Wang X. Age-related compositional changes and correlations of gut microbiome, serum metabolome, and immune factor in rats. GeroScience 2021; 43:709-725. [PMID: 32418021 PMCID: PMC8110635 DOI: 10.1007/s11357-020-00188-y] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 04/01/2020] [Indexed: 02/07/2023] Open
Abstract
Aging is a complex physiological process associated with degenerative disorder of metabolism and immune function, which contributes to the occurrence of senile diseases. The gut microbiota affects systemic inflammation in aging processes probably through metabolism, but their relationship is still unclear. In this study, 16S-rRNA-sequencing technology, gas chromatography-time-of-flight mass spectrometry (GC-TOFMS)-based metabolic profiling, and immune factor analysis combined with advanced differential and association analysis were employed to investigate the correlation between the microbiome, metabolome, and immune factors in male Wistar rats across lifespan. Our findings showed significant changes in the ileum microbiome and serum metabolome compositions across aging process. A two-level strategy was applied to demonstrate that key metabolites associated with age such as 4-hydroxyproline, proline, and lysine were clustered together and positively correlated with beneficial microbes including Bifidobacterium, Lactobacillus, and Akkermansia. Function analysis explored association between serum metabolite class and specific gut bacteria's metabolism pathways. Further correlation analysis on all the alteration patterns provided an interaction network of main immune factors such as IL-10, IgA, IgM, and IgG with key gut bacteria and serum metabolites. This study offers new insights into the relationship between immune factors, serum metabolome, and the gut microbiome.
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Affiliation(s)
- Xia Zhang
- Key Laboratory of Systems Biomedicine(Ministry of Education), Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yuping Yang
- Key Laboratory of Systems Biomedicine(Ministry of Education), Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Juan Su
- College of Veterinary Medicine, Nanjing Agriculture University, Nanjing, 210095, China
| | - Xiaojiao Zheng
- Shanghai Key Laboratory of Diabetes Mellitus and Center for Translational Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Chongchong Wang
- Key Laboratory of Systems Biomedicine(Ministry of Education), Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Shaoqiu Chen
- Key Laboratory of Systems Biomedicine(Ministry of Education), Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Jiajian Liu
- Shanghai Key Laboratory of Diabetes Mellitus and Center for Translational Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Yingfang Lv
- Key Laboratory of Systems Biomedicine(Ministry of Education), Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Shihao Fan
- College of Veterinary Medicine, Nanjing Agriculture University, Nanjing, 210095, China
| | - Aihua Zhao
- Shanghai Key Laboratory of Diabetes Mellitus and Center for Translational Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Tianlu Chen
- Shanghai Key Laboratory of Diabetes Mellitus and Center for Translational Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China.
| | - Wei Jia
- Shanghai Key Laboratory of Diabetes Mellitus and Center for Translational Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China.
| | - Xiaoyan Wang
- Key Laboratory of Systems Biomedicine(Ministry of Education), Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai, 200240, China.
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3
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Mak IL, Cohen TR, Vanstone CA, Weiler HA. Increased adiposity in children with obesity is associated with low red blood cell omega-3 fatty acid status and inadequate polyunsaturated fatty acid dietary intake. Pediatr Obes 2020; 15:e12689. [PMID: 32662950 DOI: 10.1111/ijpo.12689] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 03/13/2020] [Accepted: 05/18/2020] [Indexed: 01/15/2023]
Abstract
The association between total dietary fat intake and measures of body fatness in children with obesity remains inconsistent. This study aimed to determine whether dietary long-chain polyunsaturated fatty acids (LCPUFA) and LCPUFA status relate to body composition in children with obesity. Children (n = 63, 9.0 ± 0.2 year, BMI Z-score 3.1 ± 0.2) were divided into tertiles of percentage body fat assessed by dual-energy X-ray absorptiometry. Diet was assessed 3-days food diaries. Fatty acid proportions in red blood cells (RBC) were measured by gas chromatography. Data stratified by sex and Tanner stages were compared with a MIXED model ANOVA. Associations between RBC fatty acid status and dietary intakes were examined with Spearman correlation. Moderate correlations were observed between RBC eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) proportions, dietary EPA and DHA (r = 0.39, P < .05) as well as fish servings (r = 0.33, P < .05). Dietary LCPUFA did not differ among tertiles. Children in tertile 3 had lower RBC α-linolenic acid (-40%) and EPA + DHA (-15%) proportions adjusted for age, Tanner stages and race compared with tertile 1. The lower omega-3 LCPUFA status in children with greater adiposity is consistent with suboptimal intakes of omega-3 LCPUFA and fish in the diet.
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Affiliation(s)
- Ivy L Mak
- School of Human Nutrition, McGill University, Montreal, Quebec, Canada
| | - Tamara R Cohen
- Faculty of Land and Food Systems, The University of British Columbia, Vancouver, British Columbia, Canada
| | | | - Hope A Weiler
- School of Human Nutrition, McGill University, Montreal, Quebec, Canada
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4
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Association between Obesity and Omega-3 Status in Healthy Young Women. Nutrients 2020; 12:nu12051480. [PMID: 32443667 PMCID: PMC7284478 DOI: 10.3390/nu12051480] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/17/2020] [Accepted: 05/18/2020] [Indexed: 12/28/2022] Open
Abstract
Omega-3 polyunsaturated fatty acids (n-3 PUFAs) are essential for healthy development and protect against metabolic disease. However, individuals with obesity may be pre-disposed to experiencing lower n-3 PUFA status than normal-weight individuals. This cross-sectional study examined the relationship between the omega-3 index (O3I), body mass index (BMI) and dietary intake in healthy young women (n = 300; age = 18–35 y), a group not previously focused on. Intake was adjusted for energy using the residuals method, and associations were explored using independent t-tests and Pearson’s correlations. Participants with obesity were found to have significantly lower O3I than normal-weight participants (p < 0.0001); however, no significant differences were observed in mean n-3 PUFA intakes. Even so, energy-adjusted intakes of n-3 PUFAs, with the exception of alpha-linolenic acid, were significantly correlated with O3I. This study demonstrates that O3I is influenced by both BMI and diet in young women; however the relationship between these two variables may be complex. Current intakes of n-3 PUFA observed in young women may not be effective in achieving target O3I levels in those with obesity, and further research is needed to find effective ways of improving n-3 PUFA status in a group already at increased risk of metabolic disease.
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5
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Gas chromatography-mass spectrometry-based analytical strategies for fatty acid analysis in biological samples. J Food Drug Anal 2019; 28:60-73. [PMID: 31883609 DOI: 10.1016/j.jfda.2019.10.003] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 10/21/2019] [Accepted: 10/30/2019] [Indexed: 02/07/2023] Open
Abstract
Fatty acids play critical roles in biological systems. Imbalances in fatty acids are related to a variety of diseases, which makes the measurement of fatty acids in biological samples important. Many analytical strategies have been developed to investigate fatty acids in various biological samples. Due to the structural diversity of fatty acids, many factors need to be considered when developing analytical methods including extraction methods, derivatization methods, column selections, and internal standard selections. This review focused on gas chromatography-mass spectrometry (GC-MS)-based methods. We reviewed several commonly used fatty acid extraction approaches, including liquid-liquid extraction and solid-phase microextraction. Moreover, both acid and base derivatization methods and other specially designed methods were comprehensively reviewed, and their strengths and limitations were discussed. Having good separation efficiency is essential to building an accurate and reliable GC-MS platform for fatty acid analysis. We reviewed the separation performance of different columns and discussed the application of multidimensional GC for improving separations. The selection of internal standards was also discussed. In the final section, we introduced several biomedical studies that measured fatty acid levels in different sample matrices and provided hints on the relationships between fatty acid imbalances and diseases.
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6
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Flannagan KS, Gahagan S, Das AK, Burrows RA, Lozoff B, Villamor E. Serum Polyunsaturated Fatty Acids in Middle Childhood and Body Mass Index Change Through Adolescence. ANNALS OF NUTRITION AND METABOLISM 2019; 75:77-85. [PMID: 31390614 DOI: 10.1159/000502077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 07/11/2019] [Indexed: 01/22/2023]
Abstract
BACKGROUND Polyunsaturated fatty acids (PUFA) status in childhood may be associated with adiposity development. OBJECTIVE To assess associations of serum PUFA biomarkers in childhood with change in body mass index (BMI)-for-age Z scores (BMIZ) through adolescence. METHODS We quantified serum PUFA at ages 5 and 10 years among 418 children from Santiago, Chile. BMI was measured at 5, 10, and 16 years. We compared BMIZ change through age 16 years between quartiles of PUFA at 5 and 10 years and PUFA change 5-10 years by fitting growth curves from mixed effects models. RESULTS At age 5 years, serum docosahexaenoic acid was inversely associated with BMIZ change from ages 5 to 16 years. At age 10 years, arachidonic acid (AA) was nonlinearly positively related to BMIZ change from ages 10 to 16 years. Change in AA and the Δ5-desaturase (D5D) activity index between 5 and 10 years were each positively associated with BMIZ change from ages 10 to 16 years. Change in eicosapentaenoic acid was inversely associated with change in BMIZ. CONCLUSIONS Serum long-chain n-3 PUFA in middle childhood were associated with less BMI gain through adolescence, whereas AA and D5D activity was related to greater BMI gain.
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Affiliation(s)
- Kerry S Flannagan
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, Michigan, USA
| | - Sheila Gahagan
- Division of Child Development and Community Health, University of California, San Diego, California, USA
| | - Arun K Das
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Raquel A Burrows
- Institute of Nutrition and Food Technology, University of Chile, Santiago, Chile
| | - Betsy Lozoff
- Center for Human Growth and Development, University of Michigan, Ann Arbor, Michigan, USA.,Department of Pediatrics and Communicable Diseases, Medical School, University of Michigan, Ann Arbor, Michigan, USA
| | - Eduardo Villamor
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, Michigan, USA,
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Anjos S, Feiteira E, Cerveira F, Melo T, Reboredo A, Colombo S, Dantas R, Costa E, Moreira A, Santos S, Campos A, Ferreira R, Domingues P, Domingues MRM. Lipidomics Reveals Similar Changes in Serum Phospholipid Signatures of Overweight and Obese Pediatric Subjects. J Proteome Res 2019; 18:3174-3183. [DOI: 10.1021/acs.jproteome.9b00249] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Sara Anjos
- Mass Spectrometry Centre, Department of Chemistry and QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Eva Feiteira
- Mass Spectrometry Centre, Department of Chemistry and QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | | | - Tânia Melo
- Mass Spectrometry Centre, Department of Chemistry and QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
- Department of Chemistry and CESAM and ECOMARE, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Andrea Reboredo
- Clinical Pathology, Centro Hospitalar do Baixo Vouga, Aveiro, Portugal
| | - Simone Colombo
- Mass Spectrometry Centre, Department of Chemistry and QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Rosa Dantas
- Endocrinology, Diabetes and Nutrition, Centro Hospitalar do Baixo Vouga, Aveiro, Portugal
| | - Elisabete Costa
- Mass Spectrometry Centre, Department of Chemistry and QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Ana Moreira
- Mass Spectrometry Centre, Department of Chemistry and QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Sónia Santos
- Department of Chemistry and CICECO, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Ana Campos
- Mass Spectrometry Centre, Department of Chemistry and QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Rita Ferreira
- Mass Spectrometry Centre, Department of Chemistry and QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Pedro Domingues
- Mass Spectrometry Centre, Department of Chemistry and QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - M. Rosário M. Domingues
- Mass Spectrometry Centre, Department of Chemistry and QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
- Department of Chemistry and CESAM and ECOMARE, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
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8
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Flannagan KS, Ramírez-Zea M, Roman AV, Das AK, Villamor E. Adipose tissue polyunsaturated fatty acids and metabolic syndrome among adult parents and their children. Nutr Metab Cardiovasc Dis 2018; 28:1237-1244. [PMID: 30360954 DOI: 10.1016/j.numecd.2018.08.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 08/03/2018] [Accepted: 08/30/2018] [Indexed: 12/15/2022]
Abstract
BACKGROUND AND AIMS Polyunsaturated fatty acids (PUFA) may play a role in the etiology of the metabolic syndrome (MetS). The aim of the study was to examine the associations of adipose tissue PUFA biomarkers with MetS among parents and children in Mesoamerica. METHOD AND RESULTS We conducted a cross-sectional study among 468 parents and 201 children aged 7-12 y from the capital cities of Guatemala, El Salvador, the Dominican Republic, Honduras, Nicaragua, Panama, Costa Rica, and Belize, and Tuxtla Gutiérrez in Mexico. We measured PUFA biomarkers in gluteal adipose tissue by gas chromatography. In adults, MetS was defined according to the National Cholesterol Education Program's Adult Treatment Panel III definition. In children, we created an age- and sex-standardized metabolic risk score using abdominal circumference, the homeostasis model of insulin resistance, blood pressure, serum HDL cholesterol, and triglycerides. We estimated prevalence ratios of MetS and mean differences in metabolic score across quartiles of PUFA using multivariable-adjusted Poisson and linear regression models, respectively. Among adults, MetS was associated with low alpha-linolenic acid (ALA), high eicosapentaenoic acid (EPA), and low gamma-linolenic acid (GLA). It was linearly, positively associated with dihomo-gamma-linolenic acid (DGLA) and estimated Δ6-desaturase (D6D) activity. Among children, the metabolic score was positively associated with docosapentaenoic acid (DPA), DGLA, and D6D activity. CONCLUSIONS Among Mesoamerican adults, MetS prevalence is inversely associated with adipose tissue ALA and GLA, and positively associated with EPA, DGLA, and the D6D index. Among children, metabolic risk score is positively associated with DPA, DGLA, and the D6D index.
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Affiliation(s)
- K S Flannagan
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI, USA.
| | - M Ramírez-Zea
- INCAP Research Center for the Prevention of Chronic Diseases, Institute of Nutrition of Central America and Panama, Guatemala City, Guatemala
| | - A V Roman
- INCAP Research Center for the Prevention of Chronic Diseases, Institute of Nutrition of Central America and Panama, Guatemala City, Guatemala
| | - A K Das
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, USA
| | - E Villamor
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI, USA; Center for Human Growth and Development, University of Michigan, Ann Arbor, MI, USA
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Aristizabal JC, González-Zapata LI, Estrada-Restrepo A, Monsalve-Alvarez J, Restrepo-Mesa SL, Gaitán D. Concentrations of Plasma Free Palmitoleic and Dihomo-Gamma Linoleic Fatty Acids Are Higher in Children with Abdominal Obesity. Nutrients 2018; 10:nu10010031. [PMID: 29301242 PMCID: PMC5793259 DOI: 10.3390/nu10010031] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 11/13/2017] [Accepted: 11/16/2017] [Indexed: 12/16/2022] Open
Abstract
Increased plasma free fatty acids (FFAs) are associated with cardiometabolic risk factors in adults with abdominal obesity (AO). However, this association remains controversial in children. This study analyzed plasma FFA concentration in children with and without AO. Twenty-nine children classified with AO were matched by age and sex with 29 non-obese individuals. Blood samples were collected after fasting for 10–12 h. Plasma concentration of glucose, insulin, triglycerides, total cholesterol, low-density lipoprotein cholesterol (LDL-C), and high-density lipoprotein cholesterol (HDL-C) were determined by automatized methods. FFAs were analyzed by gas chromatography. Children with and without AO had similar age (7.1 ± 2.6 vs. 7.2 ± 2.7 years; p > 0.05) but obese children showed higher (p < 0.05) body mass index (BMI) (+4.3 kg/m2), systolic blood pressure (+5.1 mmHg), and insulin (+27.8 pmol/L). There were no significant differences in plasma total FFA concentration between groups (1.02 ± 0.61 vs. 0.89 ± 0.37 mmol/L; p > 0.05). However, children with AO had higher palmitoleic acid (0.94 vs. 0.70 wt %; p < 0.05) and dihomo-gamma linoleic acid (DHGL) (2.76 vs. 2.07 wt %; p < 0.05). Palmitoleic and DHGL acids correlated (p < 0.05) with BMI (r = 0.397; r = 0.296, respectively) and with waist circumference (r = 0.380; r = 0.276, respectively). Palmitoleic acid correlated positively with systolic blood pressure (r = 0.386; p < 0.05) and negatively with HDL-C (−0.572; p < 0.01). In summary, children with AO have higher plasmatic concentrations of free palmitoleic and DHGL fatty acids, which correlate with cardiometabolic risk factors.
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Affiliation(s)
- Juan C Aristizabal
- Grupo de Investigación en Fisiología y Bioquímica (PHYSIS), Universidad de Antioquia, Medellín 050010, Colombia.
- Escuela de Nutrición y Dietética, Universidad de Antioquia, Medellín 050025, Colombia.
| | - Laura I González-Zapata
- Escuela de Nutrición y Dietética, Universidad de Antioquia, Medellín 050025, Colombia.
- Grupo de Investigación en Determinantes Sociales y Económicos de la Salud y la Nutrición, Universidad de Antioquia, Medellín 050010, Colombia.
| | - Alejandro Estrada-Restrepo
- Escuela de Nutrición y Dietética, Universidad de Antioquia, Medellín 050025, Colombia.
- Grupo de Investigación en Demografía y Salud, Universidad de Antioquia, Medellín 050010, Colombia.
| | | | - Sandra L Restrepo-Mesa
- Grupo de Investigación Alimentación y Nutrición Humana, Universidad de Antioquia, Medellín 050010, Colombia.
| | - Diego Gaitán
- Grupo de Investigación Alimentación y Nutrición Humana, Universidad de Antioquia, Medellín 050010, Colombia.
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n-3 Polyunsaturated Fatty Acids and Metabolic Syndrome Risk: A Meta-Analysis. Nutrients 2017; 9:nu9070703. [PMID: 28684692 PMCID: PMC5537818 DOI: 10.3390/nu9070703] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 06/15/2017] [Accepted: 07/02/2017] [Indexed: 12/14/2022] Open
Abstract
The associations between n-3 polyunsaturated fatty acids (PUFAs) and metabolic syndrome (MetS) risk have demonstrated inconsistent results. The present study aimed to investigate whether higher circulating n-3 PUFAs and dietary n-3 PUFAs intake have a protective effect on MetS risk. A systematic literature search in the PubMed, Scopus, and Chinese National Knowledge Infrastructure (CNKI) databases was conducted up to March 2017. Odd ratios (ORs) from case-control and cross-sectional studies were combined using a random-effects model for the highest versus lowest category. The differences of n-3 PUFAs between healthy subjects and patients with MetS were calculated as weighted mean difference (WMD) by using a random-effects model. Seven case-control and 20 cross-sectional studies were included. A higher plasma/serum n-3 PUFAs was associated with a lower MetS risk (Pooled OR = 0.63, 95% CI: 0.49, 0.81). The plasma/serum n-3 PUFAs in controls was significantly higher than cases (WMD: 0.24; 95% CI: 0.04, 0.43), especially docosapentaenoic acid (DPA) and docosahexaenoic acid (DHA). However, no significant association was found between dietary intake of n-3 PUFAs or fish and MetS risk. The present study provides substantial evidence of a higher circulating n-3 PUFAs associated with a lower MetS risk. The circulating n-3 PUFAs can be regarded as biomarkers indicating MetS risk, especially DPA and DHA.
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Bermúdez-Cardona J, Velásquez-Rodríguez C. Profile of Free Fatty Acids and Fractions of Phospholipids, Cholesterol Esters and Triglycerides in Serum of Obese Youth with and without Metabolic Syndrome. Nutrients 2016; 8:54. [PMID: 26891317 PMCID: PMC4772025 DOI: 10.3390/nu8020054] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Revised: 12/15/2015] [Accepted: 01/11/2016] [Indexed: 12/18/2022] Open
Abstract
The study evaluated the profile of circulating fatty acids (FA) in obese youth with and without metabolic syndrome (MetS) to determine its association with nutritional status, lifestyle and metabolic variables. A cross-sectional study was conducted in 96 young people, divided into three groups: obese with MetS (OBMS), obese (OB) and appropriate weight (AW). FA profiles were quantified by gas chromatography; waist circumference (WC), fat folds, lipid profile, high-sensitivity C-reactive protein, glucose, insulin, the homeostasis model assessment (HOMA index), food intake and physical activity (PA) were assessed. The OBMS group had significantly greater total free fatty acids (FFAs), palmitic-16:0 in triglyceride (TG), palmitoleic-16:1n-7 in TG and phospholipid (PL); in the OB group, these FAs were higher than in the AW group. Dihomo-gamma-linolenic (DHGL-20:3n-6) was higher in the OBMS than the AW in PL and FFAs. Linoleic-18:2n-6 in TG and PL had the lowest proportion in the OBMS group. WC, PA, total FFA, linoleic-18:2n-6 in TG and DHGL-20:3n-6 in FFAs explained 62% of the HOMA value. The OB group presented some higher proportions of FA and biochemical values than the AW group. The OBMS had proportions of some FA in the TG, PL and FFA fractions that correlated with disturbances of MetS.
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Affiliation(s)
- Juliana Bermúdez-Cardona
- Research Group in Food and Human Nutrition, Universidad de Antioquia (UdeA), Calle 70 No. 52-21 Medellín 050010238, Colombia.
| | - Claudia Velásquez-Rodríguez
- Research Group in Food and Human Nutrition, Universidad de Antioquia (UdeA), Calle 70 No. 52-21 Medellín 050010238, Colombia.
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Venäläinen T, Ågren J, Schwab U, de Mello VD, Eloranta AM, Laaksonen DE, Lindi V, Lakka TA. Cross-sectional associations of plasma fatty acid composition and estimated desaturase and elongase activities with cardiometabolic risk in Finnish children--The PANIC study. J Clin Lipidol 2015; 10:82-91. [PMID: 26892124 DOI: 10.1016/j.jacl.2015.09.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Revised: 08/31/2015] [Accepted: 09/14/2015] [Indexed: 01/04/2023]
Abstract
BACKGROUND Knowledge on the association of plasma fatty acid (FA) composition in triacylglycerol (TG) and phospholipid (PL) fractions with cardiometabolic risk in population-based samples of children is lacking. OBJECTIVE We investigated the associations of proportions of FA in plasma TG and PL fractions as well as estimated desaturase and elongase activities with cardiometabolic risk in a population sample of 384 children aged 6-8 years. METHODS Plasma FA composition was analyzed by gas chromatography. Desaturase and elongase activities were estimated as product-to-precursor FA ratios. Cardiometabolic risk was assessed using a continuous cardiometabolic risk score (CRS) variable. RESULTS Higher proportions of myristic and palmitoleic acids in plasma TG and PL were associated with a higher CRS. A lower proportion of linoleic acid in plasma TG was related to a higher CRS. Estimated stearoyl-CoA-desaturase and Δ6-desaturase activities in plasma TG and PL were directly associated with CRS, whereas estimated elongase activity in plasma TG and PL was inversely related to CRS. CONCLUSIONS Greater proportions of myristic and palmitoleic acids and a smaller proportion of linoleic acid in plasma, as well as higher estimated stearoyl-CoA-desaturase and Δ6-desaturase activities and a lower estimated elongase activity, are associated with cardiometabolic risk factors among children. These findings reinforce the evidence that FA metabolism is closely associated with cardiometabolic risk, starting already from childhood.
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Affiliation(s)
- Taisa Venäläinen
- Institute of Biomedicine, Physiology, University of Eastern Finland, Kuopio, Finland; Institute of Public Health and Clinical Nutrition, Clinical Nutrition, University of Eastern Finland, Kuopio, Finland.
| | - Jyrki Ågren
- Institute of Biomedicine, Physiology, University of Eastern Finland, Kuopio, Finland
| | - Ursula Schwab
- Institute of Public Health and Clinical Nutrition, Clinical Nutrition, University of Eastern Finland, Kuopio, Finland; Institute of Clinical Medicine, Internal Medicine, Kuopio University Hospital, Kuopio, Finland
| | - Vanessa D de Mello
- Institute of Public Health and Clinical Nutrition, Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Aino-Maija Eloranta
- Institute of Biomedicine, Physiology, University of Eastern Finland, Kuopio, Finland
| | - David E Laaksonen
- Institute of Biomedicine, Physiology, University of Eastern Finland, Kuopio, Finland; Institute of Clinical Medicine, Internal Medicine, Kuopio University Hospital, Kuopio, Finland
| | - Virpi Lindi
- Institute of Biomedicine, Physiology, University of Eastern Finland, Kuopio, Finland
| | - Timo A Lakka
- Institute of Biomedicine, Physiology, University of Eastern Finland, Kuopio, Finland; Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital, Kuopio, Finland; Kuopio Research Institute of Exercise Medicine, Kuopio, Finland
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Lassandro C, Banderali G, Radaelli G, Borghi E, Moretti F, Verduci E. Docosahexaenoic Acid Levels in Blood and Metabolic Syndrome in Obese Children: Is There a Link? Int J Mol Sci 2015; 16:19989-20000. [PMID: 26307979 PMCID: PMC4581336 DOI: 10.3390/ijms160819989] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2015] [Revised: 07/21/2015] [Accepted: 08/18/2015] [Indexed: 12/13/2022] Open
Abstract
Prevalence of metabolic syndrome is increasing in the pediatric population. Considering the different existing criteria to define metabolic syndrome, the use of the International Diabetes Federation (IDF) criteria has been suggested in children. Docosahexaenoic acid (DHA) has been associated with beneficial effects on health. The evidence about the relationship of DHA status in blood and components of the metabolic syndrome is unclear. This review discusses the possible association between DHA content in plasma and erythrocytes and components of the metabolic syndrome included in the IDF criteria (obesity, alteration of glucose metabolism, blood lipid profile, and blood pressure) and non-alcoholic fatty liver disease in obese children. The current evidence is inconsistent and no definitive conclusion can be drawn in the pediatric population. Well-designed longitudinal and powered trials need to clarify the possible association between blood DHA status and metabolic syndrome.
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Affiliation(s)
- Carlotta Lassandro
- Department of Pediatrics, San Paolo Hospital, Department of Health Science, University of Milan, I-20142 Milan, Italy.
| | - Giuseppe Banderali
- Department of Pediatrics, San Paolo Hospital, Department of Health Science, University of Milan, I-20142 Milan, Italy.
| | - Giovanni Radaelli
- Department of Pediatrics, San Paolo Hospital, Department of Health Science, University of Milan, I-20142 Milan, Italy.
| | - Elisa Borghi
- Microbiology Unit, Department of Health Sciences, University of Milan, I-20142 Milan, Italy.
| | - Francesca Moretti
- Department of Pediatrics, San Paolo Hospital, Department of Health Science, University of Milan, I-20142 Milan, Italy.
| | - Elvira Verduci
- Department of Pediatrics, San Paolo Hospital, Department of Health Science, University of Milan, I-20142 Milan, Italy.
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Fekete K, Györei E, Lohner S, Verduci E, Agostoni C, Decsi T. Long-chain polyunsaturated fatty acid status in obesity: a systematic review and meta-analysis. Obes Rev 2015; 16:488-97. [PMID: 25828602 DOI: 10.1111/obr.12280] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2014] [Revised: 02/11/2015] [Accepted: 02/25/2015] [Indexed: 01/13/2023]
Abstract
Long-chain polyunsaturated fatty acid (LCPUFA) status has recently been related to the pathogenesis of obesity. Our aims were to systematically review observational studies investigating LCPUFA status from different blood compartments in overweight or obese subjects and to assess the relationship between LCPUFA profile and obesity. The Ovid MEDLINE, Scopus and Cochrane Library CENTRAL databases were searched from inception to January 2014. The meta-analysis showed significant differences in the LCPUFA composition of total plasma lipids, plasma phospholipids and plasma cholesteryl esters between overweight or obese subjects and controls. Dihomo-γ-linolenic acid (DGLA) values were significantly higher in overweight or obese subjects compared with controls in all the investigated biomarkers. In addition, the DGLA/linoleic acid ratio (surrogate parameter for Δ6 desaturase activity) in plasma phospholipids was significantly elevated (mean difference [MD]: 0.05; 95% confidence interval [CI]: 0.02, 0.08; n = 280), while the arachidonic acid/DGLA ratio (surrogate parameter for Δ5 desaturase activity) was significantly decreased (MD: -0.55; 95% CI: -0.71, -0.39; n = 347) in overweight or obese subjects compared with controls. The results of the present meta-analysis confirm that LCPUFA profile is altered in obesity and suggest that the differences observed in desaturase activities may be responsible for the disturbed LCPUFA metabolism in obesity.
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Affiliation(s)
- K Fekete
- Department of Biochemistry and Medical Chemistry, University of Pécs, Pécs, Hungary.,Department of Paediatrics, University of Pécs, Pécs, Hungary
| | - E Györei
- Department of Paediatrics, University of Pécs, Pécs, Hungary
| | - S Lohner
- Department of Paediatrics, University of Pécs, Pécs, Hungary.,Hungarian Branch of the German Cochrane Centre, University of Pécs, Pécs, Hungary
| | - E Verduci
- Department of Paediatrics, San Paolo Hospital, University of Milan, Milan, Italy
| | - C Agostoni
- Department of Paediatrics, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - T Decsi
- Department of Paediatrics, University of Pécs, Pécs, Hungary
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15
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Dai L, Gonçalves CMV, Lin Z, Huang J, Lu H, Yi L, Liang Y, Wang D, An D. Exploring metabolic syndrome serum free fatty acid profiles based on GC–SIM–MS combined with random forests and canonical correlation analysis. Talanta 2015; 135:108-14. [DOI: 10.1016/j.talanta.2014.12.039] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 12/19/2014] [Accepted: 12/25/2014] [Indexed: 12/23/2022]
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16
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Venäläinen T, Schwab U, Ågren J, de Mello V, Lindi V, Eloranta AM, Kiiskinen S, Laaksonen D, Lakka TA. Cross-sectional associations of food consumption with plasma fatty acid composition and estimated desaturase activities in Finnish children. Lipids 2015; 49:467-79. [PMID: 24659110 DOI: 10.1007/s11745-014-3894-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Accepted: 03/06/2014] [Indexed: 10/25/2022]
Abstract
Plasma fatty acid (FA) composition is known to be an indicator of dietary fat quality, but the associations of other dietary factors with plasma FA composition remain unknown in children. We investigated the cross-sectional associations of food consumption with the proportions of FA and estimated desaturase activities in plasma cholesteryl esters (CE) and phospholipids (PL) among children. The subjects were a population sample of 423 children aged 6–8 years examined at baseline of The Physical Activity and Nutrition in Children (PANIC) Study. We assessed food consumption by food records and plasma FA composition by gas chromatography. We used linear regression models adjusted for age, sex, physical activity and total energy intake to analyze the associations. A higher consumption of vegetable oil-based margarine (fat 60–80 %) was associated with a higher proportion of linoleic and α-linolenic acids in plasma CE and PL. A higher consumption of high-fiber grain products was related to a lower proportion of oleic acid in CE and PL. The consumption of candy was directly associated with the proportion of palmitoleic and oleic acid in plasma CE. The consumption of vegetable oil-based margarine was inversely associated with estimated stearoyl-CoA-desaturase activity in plasma CE and PL and the consumption of candy was directly related to it in plasma CE. The results of our study suggest that plasma FA composition is not only a biomarker for dietary fat quality but also reflects the consumption of high-fiber grain products and foods high in sugar among children.
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Perng W, Villamor E, Mora-Plazas M, Marin C, Baylin A. Alpha-linolenic acid (ALA) is inversely related to development of adiposity in school-age children. Eur J Clin Nutr 2014; 69:167-72. [PMID: 25271016 DOI: 10.1038/ejcn.2014.210] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Revised: 08/26/2014] [Accepted: 08/29/2014] [Indexed: 01/11/2023]
Abstract
BACKGROUND/OBJECTIVES Studies in adults indicate that dietary polyunsaturated fatty acid (PUFA) composition may play a role in development of adiposity. Because adipocyte quantity is established between late childhood and early adolescence, understanding the impact of PUFAs on weight gain during the school-age years is crucial to developing effective interventions. SUBJECTS/METHODS We quantified N-3 and N-6 PUFAs in serum samples of 668 Colombian schoolchildren aged 5-12 years at the time of recruitment into a cohort study, using gas-liquid chromatography. Serum concentrations of N-3 (alpha-linolenic acid (ALA), eicosapentaenoic acid, docosahexaenoic acid) and N-6 PUFAs (linoleic acid, gamma-linolenic acid, dihomo-gamma-linolenic acid, arachidonic acid) were determined as percentage total fatty acids. Children's anthropometry was measured annually for a median of 30 months. We used mixed-effects models with restricted cubic splines to construct population body mass index-for-age z-score (BAZ) growth curves for age- and sex-specific quartiles of each PUFA. RESULTS N-3 ALA was inversely related to BAZ gain after adjustment for sex, baseline age and weight status, as well as household socioeconomic level. Estimated BAZ change between 6 and 14 years among children in the highest quartile of ALA compared with those in the lowest quartile was 0.45 (95% confidence interval: 0.07, 0.83) lower (P-trend=0.006). CONCLUSIONS N-3 ALA may be protective against weight gain in school-age children. Whether improvement in PUFA status reduces adiposity in pediatric populations deserves evaluation in randomized trials.
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Affiliation(s)
- W Perng
- Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA
| | - E Villamor
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - M Mora-Plazas
- Fundación para Investigación en Nutrición y Salud, FINUSAD, Bogotá, Colombia
| | - C Marin
- Fundación para Investigación en Nutrición y Salud, FINUSAD, Bogotá, Colombia
| | - A Baylin
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI, USA
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18
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Perreault M, Zulyniak MA, Badoud F, Stephenson S, Badawi A, Buchholz A, Mutch DM. A distinct fatty acid profile underlies the reduced inflammatory state of metabolically healthy obese individuals. PLoS One 2014; 9:e88539. [PMID: 24520395 PMCID: PMC3919777 DOI: 10.1371/journal.pone.0088539] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Accepted: 01/07/2014] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Obesity is associated with numerous health complications; however, a subgroup of obese individuals (termed the metabolically healthy obese or MHO) appear to have lower risk for complications such as type 2 diabetes and cardiovascular disease. Emerging evidence suggests that MHO individuals have reduced inflammation compared to their metabolically unhealthy obese (MUO) counterparts. As it is recognized that fatty acids (FAs) have a strong relationship with inflammation, the current study aimed to uncover if the reduced inflammation observed in MHO individuals is mirrored by a more favourable FA profile. METHODS Fasted serum samples were collected from lean healthy (LH), MHO, and MUO participants (n = 10/group) recruited from the Diabetes Risk Assessment study. A panel of pro- and anti-inflammatory markers were measured by immunoassay. Total serum FA profiling, as well as the FA composition of circulating phospholipids (PL) and triglycerides (TG), was measured by gas chromatography. ANOVA and Mann-Whitney-Wilcoxon tests were used to assess statistical significance between the groups (P<0.05). RESULTS MHO and MUO individuals had similar BMI and body fat %; however, lipid parameters in MHO individuals more closely resembled that of LH individuals. MHO individuals had circulating levels of high sensitivity C-reactive protein (hsCRP) and interleukin-6 (IL-6) similar to LH individuals, while levels of platelet derived growth factor-ββ (PDGF-ββ) were intermediate to that of LH and MUO individuals. FA profiling analysis combined with discriminant analysis modelling highlighted a panel of nine FAs (consisting of three saturated, three monounsaturated, and three polyunsaturated FAs) in PL and TG fractions that distinguished the three groups. Specifically, saturated FA (myristic and stearic acids) levels in MHO individuals resembled that of LH individuals. CONCLUSION Our results suggest that the reduced inflammatory state of MHO individuals compared to MUO individuals may stem, in part, from a more favourable underlying FA profile.
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Affiliation(s)
- Maude Perreault
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada
| | - Michael A. Zulyniak
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada
| | - Flavia Badoud
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada
| | - Susan Stephenson
- Guelph Family Health Team, Yarmouth Medical Group, Guelph, Ontario, Canada
| | - Alaa Badawi
- Office of Biotechnology, Genomics and Population Health, Public Health Agency of Canada, Toronto, Ontario, Canada
| | - Andrea Buchholz
- Department of Family Relations and Applied Nutrition, University of Guelph, Guelph, Ontario, Canada
| | - David M. Mutch
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada
- * E-mail:
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19
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Structural and Compositional Changes in Erythrocyte Membrane of Obese Compared to Normal-Weight Adolescents. J Membr Biol 2013; 246:939-47. [DOI: 10.1007/s00232-013-9596-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Accepted: 09/24/2013] [Indexed: 10/26/2022]
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20
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Saito E, Okada T, Abe Y, Odaka M, Kuromori Y, Iwata F, Hara M, Mugishima H, Kitamura Y. Abdominal adiposity is associated with fatty acid desaturase activity in boys: implications for C-reactive protein and insulin resistance. Prostaglandins Leukot Essent Fatty Acids 2013; 88:307-11. [PMID: 23419767 DOI: 10.1016/j.plefa.2013.01.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2012] [Revised: 01/10/2013] [Accepted: 01/12/2013] [Indexed: 12/01/2022]
Abstract
Fatty acid composition, which is altered in patients with abdominal obesity, is influenced not only by dietary intake but also by the desaturating enzymes stearoyl-CoA desaturase (SCD), delta-6 desaturase (D6D) and delta-5 desaturase (D5D). We investigated desaturase activities and their associations with metabolic risk factors, C-reactive protein levels (CRP) and insulin resistance in Japanese children. There were 237 school children in this study; 115 were boys. The fatty acid composition of plasma phospholipids was analyzed, and the following desaturase activities were estimated: SCD (16:1n-7/16:0 and 18:1n-9/18:0), D6D (20:3n-6/18:2n-6) and D5D (20:4n-6/20:3n-6). D6D and D5D activities, but not SCD activity, were significantly associated with triglyceride levels, high-density lipoprotein cholesterol levels and insulin resistance in both sexes, and with CRP levels in boys. In addition, increased abdominal adiposity was significantly associated with increased D6D activity, and decreased D5D activity and insulin resistance in both sexes, and with increased CRP levels in boys. The n-6 polyunsaturated fatty acid desaturation pathway may be associated with metabolic risk factors, insulin resistance and increased inflammation in children with abdominal obesity, especially in boys.
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Affiliation(s)
- Emiko Saito
- Department of Pediatrics and Child Health, Nihon University School of Medicine 30-1, Oyaguchi Kamicho, Itabashi-ku, Tokyo173-8610, Japan
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21
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Garneau V, Rudkowska I, Paradis AM, Godin G, Julien P, Pérusse L, Vohl MC. Association between plasma omega-3 fatty acids and cardiovascular disease risk factors. Appl Physiol Nutr Metab 2013; 38:243-8. [DOI: 10.1139/apnm-2012-0238] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The consumption of omega-3 (n-3) fatty acids (FA), namely eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), have been linked to reduced cardiovascular disease (CVD) risk. The objective of this study was to examine the relation between n-3 FA in plasma phospholipid (PL) levels and CVD risk factors. n-3 FA levels in plasma PL were determined using gas chromatography in 100 obese (body mass index (BMI), ≥30 kg·m−2) and 100 nonobese selected individuals from the Quebec City metropolitan area. The CVD risk factors analysed were BMI, blood pressure, plasma lipids levels, and fasting plasma glucose. Significantly higher levels of alpha-linolenic acid (ALA) and docosapentaenoic acid (DPA) were observed in obese subjects, whereas significantly higher levels of DHA were observed in nonobese subjects. For CVD risk factors, ALA levels were positively correlated with plasma triglyceride concentrations and negatively associated with diastolic blood pressure. None of the CVD risk factors studied was linked to EPA levels. In addition, DPA was negatively related to high-density lipoprotein cholesterol (HDL-C) and positively correlated with the total cholesterol/HDL-C ratio. DHA levels were negatively correlated with BMI, waist circumference, and plasma triglyceride levels, whereas a positive association was observed with HDL-C levels. Total n-3 FA percentages were negatively correlated with BMI. In conclusion, higher DHA percentages in plasma PL are associated with a more favourable CVD risk profile, whereas higher DPA percentages in plasma PL are associated with a more deteriorated CVD risk profile.
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Affiliation(s)
- Véronique Garneau
- Department of Food Science and Nutrition, Laval University, Québec, QC G1K 7P4, Canada; Genomics and Endocrinology, Laval University Medical Center, Québec, QC G1V 4G2, Canada; Institute of Nutraceuticals and Functional Foods, Laval University, 2440, boul. Hochelaga, Québec, QC G1V 0A6, Canada
| | - Iwona Rudkowska
- Department of Food Science and Nutrition, Laval University, Québec, QC G1K 7P4, Canada; Genomics and Endocrinology, Laval University Medical Center, Québec, QC G1V 4G2, Canada; Institute of Nutraceuticals and Functional Foods, Laval University, 2440, boul. Hochelaga, Québec, QC G1V 0A6, Canada
| | - Ann-Marie Paradis
- Department of Food Science and Nutrition, Laval University, Québec, QC G1K 7P4, Canada; Genomics and Endocrinology, Laval University Medical Center, Québec, QC G1V 4G2, Canada; Institute of Nutraceuticals and Functional Foods, Laval University, 2440, boul. Hochelaga, Québec, QC G1V 0A6, Canada
| | - Gaston Godin
- Faculty of Nursing, Laval University, Québec, Québec, Canada
| | - Pierre Julien
- Genomics and Endocrinology, Laval University Medical Center, Québec, Québec, Canada
| | - Louis Pérusse
- Institute of Nutraceuticals and Functional Foods, Québec, Québec, Canada; Department of Social and Preventive Medicine, Laval University, Québec, Québec, Canada
| | - Marie-Claude Vohl
- Department of Food Science and Nutrition, Laval University, Québec, QC G1K 7P4, Canada; Genomics and Endocrinology, Laval University Medical Center, Québec, QC G1V 4G2, Canada; Institute of Nutraceuticals and Functional Foods, Laval University, 2440, boul. Hochelaga, Québec, QC G1V 0A6, Canada
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22
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Zhang JF, Yao GY, Wu YH. Expression profiling based on coexpressed modules in obese prepubertal children. GENETICS AND MOLECULAR RESEARCH 2012; 11:3077-85. [PMID: 23007985 DOI: 10.4238/2012.august.31.5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The aim of this study was to identify related genes and the underlying molecular mechanisms in obese patients who show a series of clinical and metabolic abnormalities known as metabolic syndrome. We identified expression profiles through a coexpression network. In addition, a similarity matrix and expression modules were constructed based on domain and pathway enrichment analysis. The genes in module 1 were mainly involved in the metabolism of xenobiotics by cytochrome P450, aldosterone-regulated sodium reabsorption, and focal adhesion owing to the presence of aldo/ketoreductase, basic helix-loop-helix, von Willebrand factor, Frizzled-related domain, and other domains. The genes in module 3 may be involved in cell cycle (hsa04110) and DNA replication (hsa03030) pathways through mini-chromosome maintenance, serine/threonine protein kinase, the protein kinase domain, and other domains. We analyzed the published molecular mechanisms of obesity and found many genes and pathways that have not been given enough attention and require further confirmation.
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Affiliation(s)
- J F Zhang
- Department of Child Health Care, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
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23
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Dias JP, Couture R. Blockade of kinin B(1) receptor reverses plasma fatty acids composition changes and body and tissue fat gain in a rat model of insulin resistance. Diabetes Obes Metab 2012; 14:244-53. [PMID: 22023455 DOI: 10.1111/j.1463-1326.2011.01521.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
AIM Kinin B(1) receptor (B(1) R) contributes to insulin resistance through a mechanism involving oxidative stress. This study examined the effect of B(1) R blockade on the changes in plasma fatty acids composition, body and tissue fat mass and adipose tissue inflammation that influence insulin resistance. METHODS Sprague-Dawley rats were fed with 10% D-glucose or tap water (Control) for 13 weeks and during the last week, rats were administered the B(1) R antagonist SSR240612 (10 mg/kg/day, gavage) or vehicle. The following parameters were assessed: plasma fatty acids (by gas chromatography), body composition (by EchoMRI), metabolic hormone levels (by radioimmunoassay), expression of B(1) R and inflammatory markers in adipose tissue (by Western blot and qRT-PCR). RESULTS Glucose feeding significantly increased plasma levels of glucose, insulin, leptin, palmitoleic acid (16:1n-7), oleic acid (18:1n-9), Δ6 and Δ9 desaturases while linoleic acid (18:2n-6), arachidonic acid (20:4n-6) and Δ5 desaturase were decreased. SSR240612 reduced plasma levels of insulin, glucose, the homeostasis model assessment index of insulin resistance, palmitoleic acid and n-7 family. Alterations of Δ5, Δ6 and Δ9 desaturases were normalized by SSR240612. The B(1) R antagonist also reversed the enhancing effect of glucose feeding on whole body and epididymal fat mass and on the expression of macrophage CD68, interleukin-1β, tumour necrosis factor-α and inducible nitric oxide synthase in retroperitoneal adipose tissue. B(1) R protein and mRNA were not detected in retroperitoneal adipose tissue. CONCLUSION Insulin resistance in glucose-fed rats is associated with low state inflammation in adipose tissue and plasma fatty acids changes which are reversed by B(1) R blockade. These beneficial effects may contribute to insulin sensitivity improvement and the prevention of obesity.
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Affiliation(s)
- J P Dias
- Department of Physiology, Faculty of Medicine, Université de Montréal, Montréal, Québec, Canada
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24
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Burrows T, Berthon B, Garg ML, Collins CE. A comparative validation of a child food frequency questionnaire using red blood cell membrane fatty acids. Eur J Clin Nutr 2012; 66:825-9. [PMID: 22378224 DOI: 10.1038/ejcn.2012.26] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
BACKGROUND/OBJECTIVES There are limited validated tools available for the assessment of dietary intake in pediatric populations. This report describes a comparative validation study of selected fatty acid intakes in children assessed by food frequency questionnaire (FFQ), compared with erythrocyte membrane fatty acids. SUBJECTS/METHODS Overall, 46 overweight and 47 healthy-weight children aged 5-12 years (mean±SD, 9.1±1.3years, body mass index 20.5±4.0) were recruited; dietary fatty acid intakes assessed by parent report using a 135-item semi-quantitative FFQ, were compared with selected child erythrocyte membrane fatty acids assessed from fasting samples using gas chromatography. Spearman's rank correlation coefficients were calculated between fatty acid intake estimates (% of energy) and erythrocyte membrane concentrations (%mol/mol). RESULTS Significant correlations were found between dietary and erythrocyte eicosapentanoic acid (EPA) concentration (r=0.24, P<0.05) with a statistical trend for total omega three (∑n-3) fatty acids (r=0.22, P=0.06) and linoleic acid (r=0.32, P=0.07) in the healthy-weight children only. CONCLUSION Parental report of selected child fatty acid intakes using an FFQ can be used to provide an estimate of child intake of EPA, but further work is required to quantify this relationship for other fatty acids and in other populations.
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Affiliation(s)
- T Burrows
- School of Health Sciences, Faculty of Health, Priority Research Centre for Physical Activity and Nutrition, University of Newcastle, Newcastle, New South Wales, Australia.
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25
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Burrows T, Collins CE, Garg ML. Omega-3 index, obesity and insulin resistance in children. ACTA ACUST UNITED AC 2011; 6:e532-9. [PMID: 21226540 DOI: 10.3109/17477166.2010.549489] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
OBJECTIVES Recent studies in adults have suggested that the plasma level of omega-3 fatty acids may be associated with weight status and abdominal adiposity, limited studies exist in paediatric populations. The present study examined the relationship between the omega-3 index, weight status and insulin resistance in children. METHODS School-age children between 5-12 years, classified as non-obese or obese on the basis of body mass index (BMI) z-scores, were examined. Fat intake was assessed using a parent reported 135-item semi-quantitative food frequency questionnaire. Erythrocyte fatty acid composition was determined using gas chromatography. The Omega-3 index (O3I) was calculated by adding eicosapentaenoic and docosahexaenoic acid % (weight/weight) values. RESULTS Obese children had altered erythrocyte fatty acid composition unrelated to reported dietary intake. A greater proportion of obese (BMI z-score > 2.25) children (33%) had an omega-3 index of < 4.0 (high risk) compared with non-obese children (BMI z-score < 2.25) (17%). Simultaneously, the number of children with a higher omega-3 index (6.0-8.0 lower risk) was lower in the obese (13%) versus non-obese children (25%, respectively). A moderate, but statistically significant correlation was found between O3I and fasting insulin level (r = -0.3, P = 0.03) and with homeostatic model assessment (HOMA) scores (r = -0.3, P = 0.04). CONCLUSION; The observed association between the omega-3 index, weight status and insulin resistance in children highlights the importance of omega-3 fatty acids in the prevention of obesity-related chronic diseases in later life. The results presented merits confirmation in a larger sample of obese children.
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Affiliation(s)
- T Burrows
- School of Health Sciences, University of Newcastle , Callaghan, NSW, Australia.
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Gil-Campos M, Aguilera C, Ramirez-Tortosa M, Cañete R, Gil A. Fasting and postprandial relationships among plasma leptin, ghrelin, and insulin in prepubertal obese children. Clin Nutr 2010; 29:54-9. [DOI: 10.1016/j.clnu.2009.06.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2009] [Revised: 06/01/2009] [Accepted: 06/15/2009] [Indexed: 11/28/2022]
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Spahis S, Vanasse M, Bélanger SA, Ghadirian P, Grenier E, Levy E. Lipid profile, fatty acid composition and pro- and anti-oxidant status in pediatric patients with attention-deficit/hyperactivity disorder. Prostaglandins Leukot Essent Fatty Acids 2008; 79:47-53. [PMID: 18757191 DOI: 10.1016/j.plefa.2008.07.005] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2008] [Revised: 07/10/2008] [Accepted: 07/11/2008] [Indexed: 10/21/2022]
Abstract
Attention-deficit/hyperactivity disorder (ADHD) is the most prevalent behavioral disorder in children and the pathophysiology remains obscure. In addition to the pharmacotherapy, which is the primary treatment of ADHD, nutritional intervention may have a significant impact on ADHD symptoms. We studied lipid and lipoprotein profiles, fatty acid (FA) composition, and oxidant-antioxidant status in 37 pediatric ADHD patients and 35 healthy control subjects. Our results show that plasma triacylglycerols and phospholipids were lower, whereas free cholesterol, HDL, and apolipoprotein A-I were higher in ADHD patients compared with controls. The proportion of plasma EPA and DHA was higher, but that of oleic and alpha-linolenic (ALA) acids was lower. As expected from these findings, the proportions of both total saturates and polyunsaturates fatty acids (PUFA) were higher and lower, respectively, in ADHD patients than in controls, which led to a significant decrease in the PUFAs/saturates ratio. On the other hand, the ratios of eicosatrienoic acid to arachidonic acid and of palmitoleic acid to linoleic acid, established indexes of essential fatty acid (EFA) status remained unchanged revealing that EFA did not affect ADHD patients. Similarly, the activity of delta-6 desaturase, estimated by the ratio of 18:2(n-6)/20:4(n-6), was found unaffected, whereas ALA/EPA was diminished. Lessened lipid peroxidation was noted in ADHD subjects as documented by the diminished values of plasma malondialdehyde accompanied by increased concentrations of gamma-tocopherol. In conclusions, significant changes occur in the lipid and lipoprotein profiles, as well as in the oxidant-antioxidant status of ADHD patients, however, the FA distribution does not reflect n-3 FA deficiency.
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Affiliation(s)
- Schohraya Spahis
- Research Center, CHU Sainte-Justine, Gastroenterology, Hepatology and Nutrition Unit, 3175, Côte Ste-Catherine Road, Montréal, Québec, Canada H3T 1C5
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