1
|
Ali N, Rahat ST, Mäkelä M, Nasserinejad M, Jaako T, Kinnunen M, Schroderus J, Tulppo M, Nieminen AI, Vainio S. Metabolic patterns of sweat-extracellular vesicles during exercise and recovery states using clinical grade patches. Front Physiol 2023; 14:1295852. [PMID: 38143912 PMCID: PMC10748597 DOI: 10.3389/fphys.2023.1295852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 11/28/2023] [Indexed: 12/26/2023] Open
Abstract
Background: Metabolite-based sensors are attractive and highly valued for monitoring physiological parameters during rest and/or during physical activities. Owing to their molecular composition consisting of nucleic acids, proteins, and metabolites, extracellular vesicles (EVs) have become acknowledged as a novel tool for disease diagnosis. However, the evidence for sweat related EVs delivering information of physical and recovery states remains to be addressed. Methods: Taking advantage of our recently published methodology allowing the enrichment and isolation of sweat EVs from clinical patches, we investigated the metabolic load of sweat EVs in healthy participants exposed to exercise test or recovery condition. -Ten healthy volunteers (-three females and -seven males) were recruited to participate in this study. During exercise test and recovery condition, clinical patches were attached to participants' skin, on their back. Following exercise test or recovery condition, the patches were carefully removed and proceed for sweat EVs isolation. To explore the metabolic composition of sweat EVs, a targeted global metabolomics profiling of 41 metabolites was performed. Results: Our results identified seventeen metabolites in sweat EVs. These are associated with amino acids, glutamate, glutathione, fatty acids, creatine, and glycolysis pathways. Furthermore, when comparing the metabolites' levels in sweat EVs isolated during exercise to the metabolite levels in sweat EVs collected after recovery, our findings revealed a distinct metabolic profiling of sweat EVs. Furthermore, the level of these metabolites, mainly myristate, may reflect an inverse correlation with blood glucose, heart rate, and respiratory rate levels. Conclusion: Our data demonstrated that sweat EVs can be purified using routinely used clinical patches during physical activity, setting the foundations for larger-scale clinical cohort work. Furthermore, the metabolites identified in sweat EVs also offer a realistic means to identify relevant sport performance biomarkers. This study thus provides proof-of-concept towards a novel methodology that will focus on the use of sweat EVs and their metabolic composition as a non-invasive approach for developing the next-generation of sport wearable sensors.
Collapse
Affiliation(s)
- Nsrein Ali
- Laboratory of Developmental Biology, Faculty of Biochemistry and Molecular Medicine, Oulu, Finland
- Infotech Oulu, Oulu, Finland
- Flagship GeneCellNano, University of Oulu, Oulu, Finland
- Netskinmodels Cost Action CA21108, Oulu, Finland
| | - Syeda Tayyiba Rahat
- Laboratory of Developmental Biology, Faculty of Biochemistry and Molecular Medicine, Oulu, Finland
| | - Mira Mäkelä
- Laboratory of Developmental Biology, Faculty of Biochemistry and Molecular Medicine, Oulu, Finland
| | - Maryam Nasserinejad
- Infotech Oulu, Oulu, Finland
- Research Unit of Population Health Research, Research Center, Faculty of Medicine, University of Oulu, Oulu, Finland
| | | | | | | | - Mikko Tulppo
- Edical Research Center Oulu, Faculty of Medicine, University of Oulu, Oulu, Finland
- Resaerch Unit of Biomedicine and Internal Medicine, Faculty of Medicine, University of Oulu, Oulu, Finland
| | - Anni I. Nieminen
- FIMM Metabolomics Unit, Institute for Molecular Medicine Finland, University of Helsinki, Oulu, Finland
| | - Seppo Vainio
- Laboratory of Developmental Biology, Faculty of Biochemistry and Molecular Medicine, Oulu, Finland
- Infotech Oulu, Oulu, Finland
- Flagship GeneCellNano, University of Oulu, Oulu, Finland
- Netskinmodels Cost Action CA21108, Oulu, Finland
- Kvantum Institute, University of Oulu, Oulu, Finland
| |
Collapse
|
2
|
Harrison TM, Brown R, Bonny AE, Manos BE, Bravender T. Omega-3 fatty acids and autonomic function in adolescents with anorexia: A randomized trial. Pediatr Res 2022; 92:1042-1050. [PMID: 35902705 DOI: 10.1038/s41390-022-02058-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 03/07/2022] [Accepted: 03/26/2022] [Indexed: 01/12/2023]
Abstract
OBJECTIVES Patients with anorexia nervosa (AN) have autonomic nervous system (ANS) dysfunction as measured by heart rate variability (HRV). Omega-3 fatty acids may improve heart rate regulation. Our aim was to describe ANS response to a mid-day meal in adolescent females with AN in a 12-week treatment program, randomized to receive either omega-3 supplements or placebo. METHODS This pilot study was a longitudinal, double-blind, randomized controlled trial. Each group was subdivided into an acutely ill cohort and a chronically ill cohort. Linear and non-linear measures of slope, mean, and pre/post-meal changes in HRV were measured at baseline, 6 weeks, and 12 weeks. RESULTS Twenty-four women (n = 12 placebo; n = 12 omega-3) were enrolled. By program end, the acute omega-3 group alone showed no change in any pre-meal slope. Acute and chronic omega-3 groups, but not placebo groups, demonstrated physiologically expected post-meal heart rate increases at 12 weeks. For all measures at 6 and 12 weeks, the chronic placebo and omega-3 groups had smaller physiologic responses to the meal compared with the acute groups. CONCLUSIONS Participation in a 12-week partial hospitalization program may improve autonomic function in response to mealtime, with possible additional benefit from omega-3 PUFA, particularly in those with acute illness. IMPACT Autonomic function with meals improves with a 12-week partial hospitalization program in adolescent females with anorexia nervosa. Omega-3 polyunsaturated fatty acids may improve autonomic function, especially in adolescent females with acute forms of anorexia nervosa. Longer duration of illness in adolescent females with anorexia nervosa is associated with blunted autonomic response to meals.
Collapse
Affiliation(s)
- Tondi M Harrison
- The Ohio State University College of Nursing, Columbus, OH, USA.
| | - Roger Brown
- University of Wisconsin-Madison School of Nursing, Madison, WI, USA
| | - Andrea E Bonny
- The Ohio State University College of Medicine, Nationwide Children's Hospital, Columbus, OH, USA
| | - Brittny E Manos
- The Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
| | - Terrill Bravender
- University of Michigan Departments of Pediatrics and Psychiatry, Ann Arbor, MI, USA
| |
Collapse
|
3
|
Jiang H, Wang L, Wang D, Yan N, Li C, Wu M, Wang F, Mi B, Chen F, Jia W, Liu X, Lv J, Liu Y, Lin J, Ma L. Omega-3 polyunsaturated fatty acid biomarkers and risk of type 2 diabetes, cardiovascular disease, cancer, and mortality. Clin Nutr 2022; 41:1798-1807. [PMID: 35830775 DOI: 10.1016/j.clnu.2022.06.034] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 06/08/2022] [Accepted: 06/24/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND & AIMS Considerable attention has focused on the role of omega-3 polyunsaturated fatty acids (PUFA) in the prevention of cardiometabolic diseases, which has led to dietary recommendations to increase omega-3 fatty acid intake. A meta-analysis was conducted to summarize evidence from prospective studies regarding associations between omega-3 PUFA biomarkers and risk of developing major chronic diseases. METHODS Four electronic databases were searched for articles from inception to March 1, 2022. Random-effects model was used to estimate the pooled relative risk (RR) and 95% confidence intervals (CIs) for the association of omega-3 PUFAs, including α-linolenic acid (ALA), eicosapentaenoic acid (EPA), docosapentaenoic acid (DPA), and docosahexaenoic acid (DHA), with risk of developing type 2 diabetes (T2D), cardiovascular disease (CVD), including coronary heart disease (CHD) and stroke, cancer, and mortality. The Grades of Recommendation, Assessment, Development and Evaluation assessment tool was used to rates the confidence in estimates. RESULTS A total of 67 prospective studies comprised of 310,955 participants were identified. Individual omega-3 PUFAs showed divergent associations with the study outcomes of interest. A significant inverse association with T2D risk was observed across categories of ALA (relative risk [RR]: 0.89, 95% confidence interval [CI]: 0.82-0.96), EPA (RR: 0.85, 95% CI: 0.72-0.99) and DPA (RR: 0.84, 95% CI: 0.73-0.96) biomarkers. The marine-origin omega-3 fatty acids biomarkers but not ALA was significantly associated with lower risks of total CVD, CHD, and overall mortality, with RRs ranging from 0.70 for DHA-CHD association to 0.85 for EPA-CHD association. A lower risk of colorectal cancer was observed at higher levels of DPA (RR: 0.76, 95% CI: 0.59-0.98) and DHA (RR: 0.80; 95% CI: 0.65-0.99), whereas no association was noted for other outcomes. In addition, a dose-response relationship was observed between an increasing level of EPA, DPA, or DHA biomarker and lower risk of CVD. CONCLUSIONS Higher concentrations of marine-derived omega-3 PUFA biomarkers were associated with a significantly reduced risk of total CVD, CHD, and total mortality. Levels of ALA were inversely associated with a lower risk of T2D but not CVD-related outcomes. These data support the dietary recommendations advocating the role of omega-3 PUFAs in maintaining an overall lower risk of developing cardiovascular disease and premature deaths.
Collapse
Affiliation(s)
- Hong Jiang
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Lina Wang
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Duolao Wang
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Ni Yan
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Chao Li
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Min Wu
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Fan Wang
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Baibing Mi
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Fangyao Chen
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Wanru Jia
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Xi Liu
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Jiaxin Lv
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Yan Liu
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Jing Lin
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China.
| | - Le Ma
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China; Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education of China, Xi'an, China.
| |
Collapse
|
4
|
Li LY, Wang X, Zhang TC, Liu ZJ, Gao JQ. Cardioprotective effects of omega 3 fatty acids from fish oil and it enhances autoimmunity in porcine cardiac myosin-induced myocarditis in the rat model. Z NATURFORSCH C 2021; 76:407-415. [PMID: 34049426 DOI: 10.1515/znc-2021-0057] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 05/08/2021] [Indexed: 01/27/2023]
Abstract
This experiment proposed to investigate the efficiency of omega 3 fatty acids from fish that improves autoimmune against myocarditis in the rat. Fish oil was extracted from fresh Tuna fish and performed FAME analysis and mice bioassay. The autoimmune myocarditis was induced by subcutaneous injection of porcine cardiac myosin (PCM) into the footpads of rats on the first and seventh day. Rats were dissected on the 21st day to analyze the histopathological, hemodynamic, echocardiographic factors, and immunohistochemistry expressions. In the study, 73.90% of total fatty acids were recorded. Histological analysis revealed that omega 3 fatty acids administrated groups showed tremendous development in the multifocal myocardia hyaline degeneration and necrosis with inflammatory changes. Moreover, omega 3 fatty acids inhabited the expressions of inflammatory cells (CD4, CD8 and CD11b) and suppressed the level of NF-κB. The echocardiographic factors such as heartbeat, SBP, DBP, levels of LVDs, LVDd, LVPW percentage of LVFS, EF, expression levels of inflammatory cytokines (TNF, IL-1β, IFN-ɤ, IL-2, and IL-6) also significantly suppressed by omega 3 fatty acids. Hence, the present study proved that consuming fatty acid-enriched fish might be a successful therapy for improving the inflammatory profile, regenerates the heart tissues, and controlled the production of inflammatory cells.
Collapse
Affiliation(s)
- Ling-Yan Li
- Department of Cardiology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, People's Republic of China
| | - Xu Wang
- Department of Cardiology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, People's Republic of China
| | - Ting-Chuan Zhang
- Department of Cardiology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, People's Republic of China
| | - Zong-Jun Liu
- Department of Cardiology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, People's Republic of China
| | - Jun-Qing Gao
- Department of Cardiology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, People's Republic of China
| |
Collapse
|
5
|
Zhang W. Chronotropic effects and mechanisms of long-chain omega-3 polyunsaturated fatty acids on heartbeat: the latest insights. Nutr Rev 2021; 80:128-135. [PMID: 33837412 DOI: 10.1093/nutrit/nuab009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The roles of the resting heart rate (RHR) have been actively investigated and increasingly recognized in recent decades, because of the growing evidence that fast RHR is associated with and predicts the risk of developing cardiovascular and metabolic disorders, as well as all-cause mortality. Long-chain omega-3 polyunsaturated fatty acids (PUFAs) (eg, eicosapentaenoic acid and docosahexaenoic acid) have been shown to have chronotropic effects on heartbeat in both healthy people and patients with various disease conditions. The aims of this review are (1) to briefly summarize the importance of elevated RHR in disease pathogenesis and mortality; (2) to provide an update on the negative chronotropic effect of omega-3 PUFAs on the heart; (3) to highlight how omega-3 PUFAs regulate heart rate through the autonomic nervous system - a central control mechanism; and (4) to highlight how omega-3 PUFAs modulate the trans-membrane ionic channels in cardiomyocytes - a fundamental mechanism of cardiac automaticity. Eicosapentaenoic acid and docosahexaenoic acid are nutrients derived from some aquatic organisms, and they can also be converted from digested oily seeds and nuts of some terrestrial plants in the body. The consumption of omega-3 PUFAs for RHR reduction represents a lifestyle modification for risk factor management and promises nutritional benefits for public health improvement.
Collapse
Affiliation(s)
- Weiguo Zhang
- W. Zhang is with the Las Colinas Institutes, Irving, Texas, USA
| |
Collapse
|
6
|
Farrell SW, DeFina LF, Tintle N, Barlow CE, Leonard D, Haskell WL, Berry JD, Willis BL, Pavlovic A, Harris WS. Higher omega-3 index is associated with more rapid heart rate recovery in healthy men and women. Prostaglandins Leukot Essent Fatty Acids 2020; 163:102206. [PMID: 33227647 DOI: 10.1016/j.plefa.2020.102206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 10/07/2020] [Accepted: 11/07/2020] [Indexed: 01/23/2023]
Abstract
BACKGROUND Previous studies have suggested that omega-3 polyunsaturated fatty acids (n-3 PUFA) can favorably influence cardiac autonomic tone. However, data regarding n-3 PUFA status and heart rate recovery (HRR) in healthy adults are sparse. PURPOSE To examine the association between n-3 PUFA status and HRR. METHODS Participants included 13,912 patients who underwent a comprehensive examination at the Cooper Clinic, Dallas TX. Fitness was determined from a maximal exercise test. HRR was calculated by subtracting the heart rate at 1, 3, and 5 min of an active recovery period from the maximal heart rate. Participants were categorized as having a low (<4%), normal (4-8%) or optimal (>8%) Omega-3 Index (O3I) (i.e., erythrocyte levels of eicosapentaenoic and docosahexaenoic acids). Multiple linear regression was used to model the association between O3I and HRR adjusting for age, maximal METs, body mass index, and smoking by sex. RESULTS Higher categories of O3I were associated with greater HRR at 1 min (men: 23.7, 23.9, 24.6 beats/min; women: 23.9, 24.6, 25.9 and 3 min (men: 52.4, 52.9, 53.6 beats/min; women: 51.9, 53.4, 54.6), p trend <0.01 for all. Corresponding HRR at 5 min were (men: 60.0, 60.2, 60.7 beats/min, p trend=0.09; women: 59.4, 60.8, 61.6, p trend <0.001). The HRR gradients across O3I categories were steeper in women than men at 1, 3, and 5 min (p<0.03 for all sex x O3I category interactions with HRR). CONCLUSIONS A direct relationship between HRR and O3I values was observed in both men and women, with a steeper gradient in women. These findings suggest a potential cardioprotective mechanism for n-3 PUFA.
Collapse
Affiliation(s)
| | | | - Nathan Tintle
- Fatty Acid Research Institute, Sioux Falls, SD; and Department of Mathematics & Statistics; Dordt University; Sioux Center; IA
| | | | | | - William L Haskell
- Department of Medicine, Stanford University, Palo Alto, CA United States
| | - Jarett D Berry
- Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas TX United States
| | | | | | - William S Harris
- Fatty Acid Research Institute, Sioux Falls, SD; and Department of Internal Medicine, Sanford School of Medicine, University of South Dakota, Sioux Falls, SD
| |
Collapse
|
7
|
Effects of Different n6/n3 PUFAs Dietary Ratio on Cardiac Diabetic Neuropathy. Nutrients 2020; 12:nu12092761. [PMID: 32927766 PMCID: PMC7551002 DOI: 10.3390/nu12092761] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 09/07/2020] [Accepted: 09/09/2020] [Indexed: 12/16/2022] Open
Abstract
We studied the influence of experimentally induced DM1, in combination with different dietary n6:n3 polyunsaturated fatty acid (PUFA) ratios on different types of nerve fibers in rat myocardium, in order to reveal whether protective/unfavorable effects of different PUFAs on myocardial function in diabetic patients could be a (partial) repercussion of their effect on the changes in cardiac innervation. The control group (c) and diabetic group (stz) were fed with an n6/n3 ratio of ≈7; the diet of the stz+n6 group had an n6/n3 ratio ≈60, while the diet for the stz+DHA group contained 2.5% of fish oil (containing 16% eicosapentaenoic acid—EPA and 19% docosahexaenoic acid—DHA), n6/n3 ratio of ≈1. DM1 was induced by i.p. injection of streptozotocin (55 mg/kg) and rats were euthanized 30 days after induction. Immunohistochemistry was used for the detection and quantification of different types of neuronal fibers in the cardiac septum. We found changes in cardiac innervations characteristics for the initial phase of experimental DM1, which manifested as an increase in total number and area density of all neuronal fibers, measured by Pgp9.5 immunoreactivity. By detailed analysis, we found that this increase consisted mostly of heavy myelinated NF200 immunoreactive fibers and TH immunoreactive sympathetic fibers, while the density of ChAT immunoreactive parasympathetic fibers decreased. In the deep (middle) part of the myocardium, where rare fibers (of all studied types) were found, significant differences were not found. Surprisingly, we found a more consistent protective effect of n6 PUFAs, in comparison to n3 PUFAs supplementation. These results may provide a better understanding of the potential impacts of different PUFA ratios in the diet of diabetic patients on cardiac innervation and genesis and outcome of diabetic autonomic cardiomyopathy.
Collapse
|
8
|
Chao Y, Gao S, Li N, Zhao H, Qian Y, Zha H, Chen W, Dong X. Lipidomics Reveals the Therapeutic Effects of EtOAc Extract of Orthosiphon stamineus Benth. on Nephrolithiasis. Front Pharmacol 2020; 11:1299. [PMID: 32973524 PMCID: PMC7472562 DOI: 10.3389/fphar.2020.01299] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 08/05/2020] [Indexed: 12/21/2022] Open
Abstract
Background Nephrolithiasis is a systemic metabolic disease with a high prevalence worldwide and is closely related to lipid-mediated oxidative stress and inflammation. Orthosiphon stamineus Benth. (OS) is a traditional medicinal herb mainly containing flavonoids, caffeic acid derivatives, and terpenoids, which has the effect of treating urinary stones. However, the active ingredients of OS for the treatment of kidney stones and their regulatory mechanisms remain unknown. As a powerful antioxidant, flavonoids from herbs can mitigate calcium oxalate stone formation by scavenging radical. Thus, this work focused on EtOAc extract of OS (EEOS, mainly flavonoids) and aimed to reveal the potential intrinsic mechanism of EEOS in the treatment of kidney stones disease. Methods Firstly, 75% ethanol extract of OS was further extracted with EtOAc to obtain EtOAc extract containing 88.82% flavonoids. Secondly, the extract was subjected to component analysis and used in animal experiments. Then, an untargeted lipidomics based on ultrahigh performance liquid chromatography coupled with TripleTOF 5600 mass spectrometer (UPLC-QTOF-MS) was performed to test the lipid changes of kidneys in the control group, model group and EEOS treatment groups. Finally, multivariate statistical analysis was used to identify differences between the lipid profiles of mice in the model group and the EEOS group. Results Fifty-one lipid metabolites were significantly different between the mice in the model group and the EEOS intervention group, including glycerophosphocholines, glycerophosphoethanolamines, glycerophosphoinositols, and glycerophosphoglycerols. And the composition of glycerophospholipids-esterified ω-3 polyunsaturated fatty acids and glycerophospholipid subclasses in the kidneys of the EEOS group significantly changed compared to model group. Conclusions The EEOS can inhibit the stones formation by improving oxidative stress and inflammation mediated by glycerophospholipid metabolism. This study reveals the potential mechanism of EEOS for kidney stones treatment at the lipid molecule level, providing a new direction for further study of the efficacy of OS.
Collapse
Affiliation(s)
- Yufan Chao
- School of Medicine, Shanghai University, Shanghai, China
| | - Songyan Gao
- Institute of Translational Medicine, Shanghai University, Shanghai, China
| | - Na Li
- School of Medicine, Shanghai University, Shanghai, China
| | - Hongxia Zhao
- School of Medicine, Shanghai University, Shanghai, China
| | - Yong Qian
- Shanghai Standard Technology Co., Ltd, Shanghai, China
| | - Haihong Zha
- SCIEX, Analytical Instrument Trading Co., Ltd, Shanghai, China
| | - Wei Chen
- Department of Nephrology, Shanghai Changhai Hospital, Shanghai, China
| | - Xin Dong
- School of Medicine, Shanghai University, Shanghai, China.,Institute of Translational Medicine, Shanghai University, Shanghai, China
| |
Collapse
|
9
|
Barr JL, Lindenau KL, Brailoiu E, Brailoiu GC. Direct evidence of bradycardic effect of omega-3 fatty acids acting on nucleus ambiguus. Neurosci Lett 2020; 735:135196. [PMID: 32585256 DOI: 10.1016/j.neulet.2020.135196] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/11/2020] [Accepted: 06/19/2020] [Indexed: 12/16/2022]
Abstract
Docosahexaenoic acid (DHA) an omega-3 polyunsaturated fatty acid, is an agonist of FFA1 receptor. DHA administration reduces the heart rate via unclear mechanisms. We examined the effect of DHA on neurons of nucleus ambiguus that provide the parasympathetic control of heart rate. DHA produced a dose-dependent increase in cytosolic Ca2+ concentration in cardiac-projecting nucleus ambiguus neurons; the effect was prevented by GW1100, a FFA1 receptor antagonist. DHA depolarized cultured nucleus ambiguus neurons via FFA1 activation. Bilateral microinjection of DHA into nucleus ambiguus produced bradycardia in conscious rats. Our results indicate that DHA decreases heart rate by activation of FFA1 receptor on cardiac-projecting nucleus ambiguus neurons.
Collapse
Affiliation(s)
- Jeffrey L Barr
- Center for Substance Abuse Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, United States
| | - Kristen L Lindenau
- Department of Pharmaceutical Sciences, Jefferson College of Pharmacy, Thomas Jefferson University, 901 Walnut St, Suite 901, Philadelphia, PA 19107, United States
| | - Eugen Brailoiu
- Center for Substance Abuse Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, United States
| | - G Cristina Brailoiu
- Department of Pharmaceutical Sciences, Jefferson College of Pharmacy, Thomas Jefferson University, 901 Walnut St, Suite 901, Philadelphia, PA 19107, United States.
| |
Collapse
|
10
|
Differential effects of a combination of Hibiscus sabdariffa and Lippia citriodora polyphenols in overweight/obese subjects: A randomized controlled trial. Sci Rep 2019; 9:2999. [PMID: 30816148 PMCID: PMC6395806 DOI: 10.1038/s41598-019-39159-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 12/18/2018] [Indexed: 12/31/2022] Open
Abstract
Plant-polyphenols have shown the capacity to ameliorate obesity-induced metabolic disturbances, both in cell and animal models, where most therapeutic approaches have failed. On the basis of previous research, a dietary supplement containing 500 mg of a combination of polyphenolic extracts from Lippia citriodora L. and Hibiscus sabdariffa L. (LC-HS), in the context of an equilibrated isocaloric diet, was evaluated in a double blind, placebo-controlled and randomized trial in 56 obese/overweight subjects for two months. Compared to controls, the consumption of the LC-HS polyphenols showed significant improvements in body weight, abdominal circumference of overweight subjects (−6.79 ± 0.80 cm in overweight LC-HS group vs −1.85 ± 0.83 cm in controls, p < 0.001) and body fat % (−1.33 ± 0.15% in overweight LC-HS group vs −0.66 ± 0.17% in controls, p < 0.05). Heart rate and systolic blood pressure also presented significant improvements in overweight LC-HS participants. However, changes were more modest in obese subjects. Further, LC-HS extract significantly reduced lipid content and increased AMPK activity in a hypertrophied adipocyte cell model. Therefore, consumption of 500 mg/day of LC-HS extracts enriched in polyphenols for two months in the context of an isocaloric diet by overweight subjects decreased symptoms associated to obesity-related diseases. Modulation of fat metabolism in adipose tissue, probably mediated by AMPK activation, is proposed as a molecular target to be explored in future research.
Collapse
|
11
|
Senevirathne A, Neale E, Peoples G, Tapsell L. Relationship between long-chain omega-3 polyunsaturated fatty acid intake and ankle brachial index, pulse wave velocity and resting heart rate in a sample of overweight adults: A secondary analysis of baseline data in the HealthTrack study. Nutr Diet 2018; 76:95-103. [DOI: 10.1111/1747-0080.12479] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 08/10/2018] [Accepted: 08/19/2018] [Indexed: 11/30/2022]
Affiliation(s)
- Anjana Senevirathne
- School of Medicine, Faculty of Science Medicine and Health; University of Wollongong; Wollongong New South Wales Australia
| | - Elizabeth Neale
- School of Medicine, Faculty of Science Medicine and Health; University of Wollongong; Wollongong New South Wales Australia
| | - Gregory Peoples
- School of Medicine, Faculty of Science Medicine and Health; University of Wollongong; Wollongong New South Wales Australia
| | - Linda Tapsell
- School of Medicine, Faculty of Science Medicine and Health; University of Wollongong; Wollongong New South Wales Australia
| |
Collapse
|
12
|
Correa-Rodríguez M, González-Jiménez E, Rueda-Medina B, Tovar-Gálvez MI, Ramírez-Vélez R, Correa-Bautista JE, Schmidt-RioValle J. Dietary inflammatory index and cardiovascular risk factors in Spanish children and adolescents. Res Nurs Health 2018; 41:448-458. [PMID: 30168607 DOI: 10.1002/nur.21904] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 07/26/2018] [Indexed: 01/22/2023]
Abstract
Dietary inflammatory potential is an established risk factor for adverse cardiovascular events. In this study we analyzed the relation between the Dietary Inflammatory Index (DII) and cardiovascular risk factors, based on anthropometric, body composition, blood pressure, and heart rate parameters in children and adolescents. We conducted a cross-sectional study of 428 Spanish schoolchildren (mean age 12.32 ± 1.84), whose DII was calculated, based on a 24-hr diet recall over 3 days. Anthropometric measurements were taken, and body composition analyzed by bioelectrical impedance analysis. Blood pressure and heart rate parameters were assessed with an automatic monitor. Pubertal stage was assessed based on Tanner criteria. We analyzed the DII both as a continuous variable and as a category variable based on quartiles. Linear regression analysis revealed that the DII was significantly associated with waist to height ratio (WHtR) (p = .026; B = 0.128, 95% CI [.001-.016]) after adjusting for age, sex, total energy intake, and Tanner stage. All macro- and micronutrient intakes were found to be higher in the DII Q1 (anti-inflammatory diet) except for caffeine. This study provides preliminary evidence of a significant association between the DII and WHtR, an index of cardiovascular risk. The results obtained indicate that the inflammatory potential of the diet may play a role in children and adolescents becoming overweight or developing obesity. Future studies in young people should be conducted to validate and further explore these relationships.
Collapse
Affiliation(s)
| | | | | | | | - Robinson Ramírez-Vélez
- Centro de Estudios para la Medición de la Actividad Física «CEMA», Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario, Bogota, DC 111221, Colombia
| | - Jorge E Correa-Bautista
- Centro de Estudios para la Medición de la Actividad Física «CEMA», Escuela de Medicina y Ciencias de la Salud, Universidad del Rosario, Bogota, DC 111221, Colombia
| | | |
Collapse
|
13
|
Omega-3 Fatty Acid Supplementation Improves Heart Rate Variability in Obese Children. Int J Pediatr 2018; 2018:8789604. [PMID: 29681953 PMCID: PMC5846363 DOI: 10.1155/2018/8789604] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Accepted: 01/28/2018] [Indexed: 02/01/2023] Open
Abstract
Obese children and adolescents are at high risk of developing cardiovascular diseases later in life. We hypothesized that cardiovascular prophylaxis with omega-3 fatty acids could benefit them. In our study, 20 children and adolescents (mean body mass index percentile: 99.1; mean age: 11.0 years) underwent two ambulatory 24 h Holter electrocardiography (ECG) recordings (before and after at least 3 months of omega-3 fatty acid supplementation). Time domain heart rate variability (HRV) and heart rate (HR) were examined for these patients. As a control, we used 24 h Holter ECG recordings of 94 nonobese children and adolescents. Time domain HRV parameters, which are indicators of vagal stimulation, were significantly lower in obese patients than in healthy controls, but HR was higher (standard deviation of the normal-to-normal [SDNN] interbeat intervals: −34.02%; root mean square of successive differences [RMSSD] between normal heartbeats: −40.66%; percentage of consecutive RR intervals [pNN50]: −60.24%; HR: +13.37%). After omega-3 fatty acid supplementation, time domain HRV parameters and HR of obese patients were similar to the values of healthy controls (SDNN interbeat intervals: −21.73%; RMSSD: −19.56%; pNN50: −25.59%; HR: +3.94%). Therefore, omega-3 fatty acid supplementation may be used for cardiovascular prophylaxis in obese children and adolescents.
Collapse
|
14
|
Hidayat K, Yang J, Zhang Z, Chen GC, Qin LQ, Eggersdorfer M, Zhang W. Effect of omega-3 long-chain polyunsaturated fatty acid supplementation on heart rate: a meta-analysis of randomized controlled trials. Eur J Clin Nutr 2017; 72:805-817. [PMID: 29284786 PMCID: PMC5988646 DOI: 10.1038/s41430-017-0052-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 10/06/2017] [Accepted: 10/17/2017] [Indexed: 12/13/2022]
Abstract
Background Elevated resting heart rate (HR) has emerged as a new risk factor for all-cause and cardiovascular mortality. The effect of marine-derived omega-3 long-chain polyunsaturated fatty acid (n−3 LCPUFAs) supplementation on HR was investigated as an outcome in many clinical trials. The present study was to provide an updated meta-analysis on the HR-slowing effect of n−3 LCPUFAs, and to differentiate the chronotropic effect between eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). Methods PubMed and Cochrane databases were searched for relevant articles examining the effects of n−3 PUFAs on HR through May 2017. A random-effects model was used to generate the pooled effect sizes and 95% confidence intervals (CIs). The pooled effect sizes were presented as weighted mean differences (WMDs). Results A total of 51 randomized controlled trials (RCTs) with approximately 3000 participants were included in this meta-analysis. Compared to placebo, n−3 PUFA supplementation mildly but significantly reduced HR (−2.23 bpm; 95% CI: −3.07, −1.40 bpm). Moderate evidence of heterogeneity was observed among included trials (I2 = 49.1%, P heterogeneity < 0.001). When DHA and EPA were separately administered, modest HR reduction was observed in trials that supplemented with DHA (−2.47 bpm; 95% CI: −3.47, −1.46 bpm), but not in trials with EPA. Conclusions The present meta-analysis provides strong clinical evidence demonstrating the effect of heart rate reduction by n−3 LCPUFA supplementation. When DHA or EPA administered alone, heart rate was slowed by DHA rather than by EPA.
Collapse
Affiliation(s)
- Khemayanto Hidayat
- Department of Nutrition and Food Hygiene, School of Public Health, Soochow University, Suzhou, 215123, China
| | - Jing Yang
- Department of Nutrition and Food Hygiene, School of Public Health, Soochow University, Suzhou, 215123, China
| | - Zheng Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Soochow University, Suzhou, 215123, China
| | - Guo-Chong Chen
- Department of Nutrition and Food Hygiene, School of Public Health, Soochow University, Suzhou, 215123, China
| | - Li-Qiang Qin
- Department of Nutrition and Food Hygiene, School of Public Health, Soochow University, Suzhou, 215123, China.
| | - Manfred Eggersdorfer
- DSM Nutritional Products, Human Nutrition and Health, 4303, Kaiseraugst, Switzerland
| | - Weiguo Zhang
- DSM Nutritional Products, Human Nutrition and Health, Beijing, 100020, China.
| |
Collapse
|
15
|
Javidanpour S, Dianat M, Badavi M, Mard SA. The cardioprotective effect of rosmarinic acid on acute myocardial infarction and genes involved in Ca 2+ homeostasis. Free Radic Res 2017; 51:911-923. [PMID: 28988521 DOI: 10.1080/10715762.2017.1390227] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Acute myocardial infarction (AMI) is a common cause of hospitalisation and high mortality due to lethal arrhythmias. Sarcoplasmic reticulum Ca2+ ATPase (SERCA2) and ryanodine receptor (RyR2) regulate the cytosolic Ca2+ ion concentration. Rosmarinic acid (RA) is one of the most common caffeic esters in Rosmarinus officinalis. The present study was conducted to test the hypothesis whether RA can protect cardiac function against AMI and arrhythmias induced by isoproterenol through the regulatory effect of SERCA2 and RyR2 gene expression. To this aim, male Sprague-Dawley rats were allocated into in vivo and ex vivo studies and received RA (10, 15, and 30 mg/kg; 14 days). AMI was induced by two consecutive subcutaneous injections of 100 mg/kg isoproterenol. Blood pressure (BP), heart rate, electrocardiography (ECG) parameters, plasma levels of cardiac biomarkers, and antioxidative enzymes were evaluated (in vivo study). Cardiac functions were measured in isolated hearts using Langendorff set up. Gene expressions of SERCA2 and RyR2 were measured in left ventricular heart. Isoproterenol administration showed a significant decline in BP, QRS voltage, activities of antioxidant enzymes, cardiac function, and gene expressions of SERCA2 and RyR2. The results also indicated a significant increase in heart rate, ST-elevation, cardiac biomarkers, and antioxidant enzymes. RA at 30 mg/kg dosage showed the best effect on the improvement of the mentioned factors. This study suggests that RA has potent cardioprotective effects against AMI and arrhythmia, which may be due to its ability to enhance expression of plasma antioxidant enzymes and genes involved in Ca2+ homeostasis SERCA2 and RyR2. The protective role of RA is also possibly related to its antiadrenergic effects.
Collapse
Affiliation(s)
- Somayeh Javidanpour
- a Physiology Research Center, Department of Physiology, Faculty of Medicine , Ahvaz Jundishapur University of Medical Sciences , Ahvaz , Iran
| | - Mahin Dianat
- a Physiology Research Center, Department of Physiology, Faculty of Medicine , Ahvaz Jundishapur University of Medical Sciences , Ahvaz , Iran
| | - Mohammad Badavi
- a Physiology Research Center, Department of Physiology, Faculty of Medicine , Ahvaz Jundishapur University of Medical Sciences , Ahvaz , Iran
| | - Seyyed Ali Mard
- a Physiology Research Center, Department of Physiology, Faculty of Medicine , Ahvaz Jundishapur University of Medical Sciences , Ahvaz , Iran
| |
Collapse
|
16
|
Drewery ML, Spedale SB, Lammi-Keefe CJ. Modulation of heart rate and heart rate variability by n-3 long chain polyunsaturated fatty acids: Speculation on mechanism(s). Med Hypotheses 2017; 107:29-34. [PMID: 28915957 DOI: 10.1016/j.mehy.2017.07.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 07/06/2017] [Accepted: 07/12/2017] [Indexed: 11/28/2022]
Abstract
Heart rate (HR) and heart rate variability (HRV) are valuable markers of health. Although the underlying mechanism(s) are controversial, it is well documented that n-3 long chain polyunsaturated fatty acid (LCPUFA) intake improves HR and HRV in various populations. Autonomic modulation and/or alterations in cardiac electrophysiology are commonly cited as potential mechanisms responsible for these effects. This article reviews existing evidence for each and explores a separate mechanism which has not received much attention but has scientific merit. Based on presented evidence, it is proposed that n-3 LCPUFAs affect HR and HRV directly by autonomic modulation and indirectly by altering circulating factors, both dependently and independently of the autonomic nervous system. The evidence for changes in cardiac electrophysiology as the mechanism by which n-3 LCPUFAs affect HR and HRV needs strengthening.
Collapse
Affiliation(s)
- Merritt L Drewery
- School of Nutrition and Food Sciences, Louisiana State University, Baton Rouge, LA 70803, USA.
| | | | - Carol J Lammi-Keefe
- School of Nutrition and Food Sciences, Louisiana State University, Baton Rouge, LA 70803, USA; Louisiana State University Agricultural Center, Baton Rouge, LA 70803, USA
| |
Collapse
|
17
|
Hishikawa D, Valentine WJ, Iizuka-Hishikawa Y, Shindou H, Shimizu T. Metabolism and functions of docosahexaenoic acid-containing membrane glycerophospholipids. FEBS Lett 2017; 591:2730-2744. [PMID: 28833063 PMCID: PMC5639365 DOI: 10.1002/1873-3468.12825] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2017] [Revised: 08/13/2017] [Accepted: 08/17/2017] [Indexed: 12/12/2022]
Abstract
Omega‐3 (ω‐3) fatty acids (FAs) such as docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) are known to have important roles in human health and disease. Besides being utilized as fuel, ω‐3 FAs have specific functions based on their structural characteristics. These functions include serving as ligands for several receptors, precursors of lipid mediators, and components of membrane glycerophospholipids (GPLs). Since ω‐3 FAs (especially DHA) are highly flexible, the levels of DHA in GPLs may affect membrane biophysical properties such as fluidity, flexibility, and thickness. Here, we summarize some of the cellular mechanisms for incorporating DHA into membrane GPLs and propose biological effects and functions of DHA‐containing membranes of several cell and tissue types.
Collapse
Affiliation(s)
- Daisuke Hishikawa
- Department of Lipid Signaling, National Center for Global Health and Medicine, Shinjuku-ku, Tokyo, Japan
| | - William J Valentine
- Department of Lipid Signaling, National Center for Global Health and Medicine, Shinjuku-ku, Tokyo, Japan
| | - Yoshiko Iizuka-Hishikawa
- Department of Lipid Signaling, National Center for Global Health and Medicine, Shinjuku-ku, Tokyo, Japan
| | - Hideo Shindou
- Department of Lipid Signaling, National Center for Global Health and Medicine, Shinjuku-ku, Tokyo, Japan.,Department of Lipid Science, The University of Tokyo, Bunkyo-ku, Japan.,AMED, Chiyoda-ku, Tokyo, Japan
| | - Takao Shimizu
- Department of Lipid Signaling, National Center for Global Health and Medicine, Shinjuku-ku, Tokyo, Japan.,Department of Lipidomics Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Japan
| |
Collapse
|
18
|
Štefan L, Čule M, Milinović I, Sporiš G, Juranko D. The relationship between adherence to the Mediterranean diet and body composition in Croatian university students. Eur J Integr Med 2017. [DOI: 10.1016/j.eujim.2017.07.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
19
|
Harris WS, Kennedy KF, Maddox TM, Kutty S, Spertus JA. Multiple differences between patients who initiate fish oil supplementation post-myocardial infarction and those who do not: the TRIUMPH Study. Nutr Res 2015; 36:65-71. [PMID: 26773782 DOI: 10.1016/j.nutres.2015.11.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 11/09/2015] [Accepted: 11/11/2015] [Indexed: 02/05/2023]
Abstract
The utility of fish oil supplements (FOS) in patients who survive an acute myocardial infarction (MI) remains controversial, with randomized trials showing less benefit than observational studies would suggest. The differences in the characteristics of MI patients who use FOS in routine clinical care are unknown but may help explain this discrepancy. We used data from a 24-site registry study in which extensive information was available on 4340 MI patients at admission and 1, 6, and 12 months postdischarge. After excluding those using FOS at admission (n = 651), those who died before the 1-month follow-up visit (n = 63), and those with missing data at 1 month (n = 1228), 2398 remained. Of them, 377 (16%) started FOS within 1 month of their MI. We analyzed 53 patient characteristics associated with FOS use. We observed differences (P < .001) in 20 demographic, socioeconomic, treatment, disease severity, and health status domains. The FOS users were more likely than nonusers to be white, married, financially secure, highly educated, and eating fish. They also had a higher ejection fraction at discharge, were more likely to have had in-hospital percutaneous coronary interventions, and were more likely to have participated in cardiac rehabilitation programs. The FOS users were less likely to have a history of diabetes, alcohol abuse, stroke, MI, and angina. In conclusion, post-MI patients who initiate FOS within 1 month of discharge in routine clinical practice differ substantially from those who do not. These differences are strongly associated with a better post-MI prognosis and may illuminate several sources of unmeasured confounding in observational studies.
Collapse
Affiliation(s)
- William S Harris
- Sanford School of Medicine, University of South Dakota and Omegaquant Analytics, LLC. 5009 W 12th St, Ste 8, Sioux Falls, SD, USA.
| | - K F Kennedy
- Mid America Heart Institute, 4320 Wornall Rd, Kansas City, MO, USA.
| | - T M Maddox
- VA Eastern Colorado Health Care System, University of Colorado School of Medicine, Denver, CO, USA.
| | - S Kutty
- Departments of Cardiology and Pediatric Cardiology, University of Nebraska Medical Center, Omaha, NE, USA.
| | - J A Spertus
- Mid America Heart Institute, 4320 Wornall Rd, Kansas City, MO, USA; University of Missouri-Kansas City, Kansas City, MO, USA.
| |
Collapse
|
20
|
Goo S, Han J, Nisbet LA, LeGrice IJ, Taberner AJ, Loiselle DS. Dietary supplementation with either saturated or unsaturated fatty acids does not affect the mechanoenergetics of the isolated rat heart. Physiol Rep 2014; 2:e00272. [PMID: 24760525 PMCID: PMC4002251 DOI: 10.1002/phy2.272] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
It is generally recognized that increased consumption of polyunsaturated fatty acids, fish oil (FO) in particular, is beneficial to cardiac and cardiovascular health, whereas equivalent consumption of saturated fats is deleterious. In this study, we explore this divergence, adopting a limited purview: The effect of dietary fatty acids on the mechanoenergetics of the isolated heart per se. Mechanical indices of interest include left‐ventricular (LV) developed pressure, stroke work, cardiac output, coronary perfusion, and LV power. The principal energetic index is whole‐heart oxygen consumption, which we subdivide into its active and basal moieties. The primary mechanoenergetic index of interest is cardiac efficiency, the ratio of work performance to metabolic energy expenditure. Wistar rats were divided into three Diet groups and fed, ad libitum, reference (REF), fish oil‐supplemented (FO), or saturated fatty acid‐supplemented (SFA) food for 6 weeks. At the end of the dietary period, hearts were excised, mounted in a working‐heart rig, and their mechanoenergetic performance quantified over a range of preloads and afterloads. Analyses of Variance revealed no difference in any of the individual mechanoenergetic indices among the three Diet groups. In particular, we found no effect of prior dietary supplementation with either saturated or unsaturated fatty acids on the global efficiency of the heart. Literature reports have claimed profound effects of dietary supplementation with either saturated or polyunsaturated fatty acids on the contractile efficiency of the heart – diminishing and enhancing efficiency, respectively. We have mimicked the experimental protocols used in those reports and find no effect of diet on any index of cardiac mechanoenergetics, including efficiency.
Collapse
Affiliation(s)
- Soyeon Goo
- Auckland Bioengineering Institute, The University of Auckland, Auckland, New Zealand
- Department of Physiology, The University of Auckland, Auckland, New Zealand
| | - June‐Chiew Han
- Auckland Bioengineering Institute, The University of Auckland, Auckland, New Zealand
| | - Linley A. Nisbet
- Department of Physiology, The University of Auckland, Auckland, New Zealand
| | - Ian J. LeGrice
- Auckland Bioengineering Institute, The University of Auckland, Auckland, New Zealand
- Department of Physiology, The University of Auckland, Auckland, New Zealand
| | - Andrew J. Taberner
- Auckland Bioengineering Institute, The University of Auckland, Auckland, New Zealand
- Department of Engineering Science, The University of Auckland, Auckland, New Zealand
| | - Denis S. Loiselle
- Auckland Bioengineering Institute, The University of Auckland, Auckland, New Zealand
- Department of Physiology, The University of Auckland, Auckland, New Zealand
| |
Collapse
|
21
|
Goo S, Han JC, Nisbet LA, LeGrice IJ, Taberner AJ, Loiselle DS. Dietary pre-exposure of rats to fish oil does not enhance myocardial efficiency of isolated working hearts or their left ventricular trabeculae. J Physiol 2014; 592:1795-808. [PMID: 24535444 DOI: 10.1113/jphysiol.2013.269977] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Numerous epidemiological studies, supported by clinical and experimental findings, have suggested beneficial effects of dietary fish or fish oil supplementation on cardiovascular health. One such experimental study showed a profound (100%) increase in myocardial efficiency (i.e. the ratio of work output to metabolic energy input) of the isolated whole heart, achieved by a corresponding decrease in the rate of myocardial oxygen consumption. However, a number of other investigations have returned null results on the latter energetic index. Such conflicting findings have motivated us to undertake a re-examination. To that effect, we investigated the effects of dietary fatty acid supplementation on myocardial mechano-energetics, with our primary focus on cardiac efficiency. We used both isolated hearts and isolated left ventricular trabeculae of rats fed with one of three distinct diets: reference (REF), fish oil-supplemented (FO) or saturated fat-supplemented (SFA). For all three groups, and at both spatial levels, we supplied 10 mm glucose as the exogenous metabolic substrate. In the working heart experiments, we found no difference in the average mechanical efficiency among the three dietary groups: 14.8 ± 1.1% (REF), 13.9 ± 0.6% (FO) and 13.6 ± 0.7% (SFA). Likewise, we observed no difference in peak mechanical efficiency of left ventricular trabeculae among the REF, FO and SFA groups: 13.3 ± 1.4, 11.2 ± 2.2 and 12.5 ± 1.5%, respectively. We conclude that there is no effect of a period of pre-exposure to a diet supplemented with either fish oil or saturated fatty acids on the efficiency of the myocardium at either spatial level: tissue or whole heart.
Collapse
Affiliation(s)
- Soyeon Goo
- Department of Physiology, The University of Auckland, Private Bag 92019, Auckland, New Zealand.
| | | | | | | | | | | |
Collapse
|
22
|
García-López M, Toledo E, Beunza J, Aros F, Estruch R, Salas-Salvadó J, Corella D, Ros E, Covas M, Gómez-Gracia E, Fiol M, Lamuela-Raventós R, Lapetra J, Buil-Cosiales P, Carlos S, Serra-Majem L, Pintó X, Ruiz-Gutiérrez V, Martínez-González M. Mediterranean diet and heart rate: The PREDIMED randomised trial. Int J Cardiol 2014; 171:299-301. [PMID: 24369792 DOI: 10.1016/j.ijcard.2013.11.074] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Accepted: 11/23/2013] [Indexed: 10/25/2022]
|
23
|
Lee SM, An WS. Cardioprotective effects of ω -3 PUFAs in chronic kidney disease. BIOMED RESEARCH INTERNATIONAL 2013; 2013:712949. [PMID: 23653897 PMCID: PMC3638711 DOI: 10.1155/2013/712949] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Accepted: 03/07/2013] [Indexed: 12/31/2022]
Abstract
The prevalence rate of chronic kidney disease (CKD) is increasing worldwide, and cardiovascular disease (CVD) is a main cause of death in patients with CKD. The high incidence of CVD in CKD patients is related to chronic inflammation, dyslipidemia, malnutrition, atherosclerosis, and vascular calcification. Omega-3 polyunsaturated fatty acids ( ω -3 PUFAs) have been shown to reduce the risk of CVD. In this paper, we review the beneficial effects of ω -3 PUFAs on CVD and the possible cardioprotective mechanisms of ω -3 PUFAs in CKD patients by determining the effect of ω -3 PUFAs in the general population. ω -3 PUFAs have several cardioprotective benefits, such as reducing inflammation, decreasing oxidative stress, inhibiting platelet activity, exerting antiarrhythmic effects, and improving triglyceride levels, in the general population and patients with CKD. Modifications of erythrocyte membrane fatty acid content, including an increased ω -3 index and decreased oleic acid, after ω -3 PUFAs supplementation are important changes related to CVD risk reduction in the general population and patients with CKD. Further basic and clinical studies are essential to confirm the effects of ω -3 PUFAs on vitamin D activation, vascular calcification prevention, cardiovascular events, and mortality in CKD patients.
Collapse
Affiliation(s)
- Su Mi Lee
- Department of Internal Medicine, Seoul National University Hospital, 101 Daehak-Ro, Jongno-Gu, Seoul 110-744, Republic of Korea
| | - Won Suk An
- Department of Internal Medicine, Dong-A University, 3Ga-1 Dongdaesin-Dong, Seo-Gu, Busan 602-715, Republic of Korea
| |
Collapse
|