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Sebai I, Deaconu A, Mobetty F, Nardocci M, Ing A, Batal M. Measurement of diet quality among First Nations peoples in Canada and associations with health: a scoping review. Nutr Rev 2024; 82:695-708. [PMID: 37421656 DOI: 10.1093/nutrit/nuad073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/10/2023] Open
Abstract
BACKGROUND Given the increasing number and the diversity of dietary quality indices used for research, and the differences between settings, there is a need to identify valid indices of dietary quality in different contexts and populations and to identify their associations with health-related outcomes. OBJECTIVES The primary objective of this scoping review is to identify the tools used in determining dietary quality among First Nations and to describe the changes in diet. The second objective is to describe the associations identified in studies that have measured the relationship between health and dietary quality among First Nations; and the third objective is to identify factors associated with diet quality. METHODS PubMed, Embase, CINAHL, Global Health, and Web of Science were searched from inception to June 2021 and updated in February 2022. Articles were included if the research subjects were First Nations, or if articles reported disaggregated subset data for First Nations. Eligible studies focused on nutrition and diet and were published in English or French. RESULTS A total of 151 articles were included in the analysis. Studies used several indicators to measure if individuals adhered to dietary guidelines. Traditional food consumption was frequently used as an indicator of diet quality (n = 96). The consumption of store-bought foods was used as an indicator in 28 studies. Some studies used other diet quality indicators such as the Healthy Eating Index (n = 5) and ultra-processed food "NOVA" classification (n = 6). A trend for decreasing traditional food intake over time was apparent, alongside an increase in store-bought food intake. This trend was accompanied with declining health status, including the increased prevalence of overweight and obesity, diabetes, metabolic diseases, and dental caries. CONCLUSION This scoping review showed that diet quality among First Nations is improved when traditional foods are consumed. Reduced diet quality was associated with increased risk of noncommunicable diseases.
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Affiliation(s)
- Ines Sebai
- Canada Research Chair in Nutrition and Health Inequalities (CIENS), Montreal, Canada
- TRANSNUT, Département de Nutrition, Faculté de Médecine, Université de Montréal, Montreal, Canada
- Centre de Recherche en Santé Publique, Université de Montréal et CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montreal, Canada
| | - Ana Deaconu
- Canada Research Chair in Nutrition and Health Inequalities (CIENS), Montreal, Canada
- TRANSNUT, Département de Nutrition, Faculté de Médecine, Université de Montréal, Montreal, Canada
| | - Fabrice Mobetty
- Canada Research Chair in Nutrition and Health Inequalities (CIENS), Montreal, Canada
- TRANSNUT, Département de Nutrition, Faculté de Médecine, Université de Montréal, Montreal, Canada
- Centre de Recherche en Santé Publique, Université de Montréal et CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montreal, Canada
| | - Milena Nardocci
- Canada Research Chair in Nutrition and Health Inequalities (CIENS), Montreal, Canada
- TRANSNUT, Département de Nutrition, Faculté de Médecine, Université de Montréal, Montreal, Canada
| | - Amy Ing
- Canada Research Chair in Nutrition and Health Inequalities (CIENS), Montreal, Canada
- TRANSNUT, Département de Nutrition, Faculté de Médecine, Université de Montréal, Montreal, Canada
| | - Malek Batal
- Canada Research Chair in Nutrition and Health Inequalities (CIENS), Montreal, Canada
- TRANSNUT, Département de Nutrition, Faculté de Médecine, Université de Montréal, Montreal, Canada
- Centre de Recherche en Santé Publique, Université de Montréal et CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montreal, Canada
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Rana S, Ali S, Wani HA, Mushtaq QD, Sharma S, Rehman MU. Metabolic syndrome and underlying genetic determinants-A systematic review. J Diabetes Metab Disord 2022; 21:1095-1104. [PMID: 35673448 PMCID: PMC9167205 DOI: 10.1007/s40200-022-01009-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 02/13/2022] [Indexed: 12/18/2022]
Abstract
The metabolic syndrome is a cluster of heritable and related traits which has been associated with a range of pathophysiological factors including dyslipidaemia, abdominal obesity, increased fasting plasma glucose (FPG) and hypertension. The documented genetic basis of the metabolic syndrome include several chromosomal positions, numerous candidate gene-associated polymorphisms, different genetic variants, which are linked to the syndrome either as a trait or entities mainly linked to metabolic process. Additionally, the latest findings related to the contribution of epigenetic mechanisms, microRNAs, sporadic variants, non-coding RNAs, and assessing the role of genes in molecular systems has enhanced our understanding of the syndrome. Considerable work has been done to understand the underlying disease mechanisms by elucidating its genetic etiology. Nonetheless, a common shared genetic cause has not been established to clarify the coexistence of their components and further investigation is required. While mostly neglected and rarely known, hereditary predisposition needs to be studied, including with the current defective phenotypic condition descriptions. Metabolic syndrome is a multi-faceted characteristic with abundant properties and the condition can arise from interactions between environmental variables such as physical inactivity, caloric obesity and genetic susceptibility. Although there is support for genetic determinants from family and twin research, there is still no recognised genomic DNA marker for genetic association and linkages with quite a long way off potential for clinical application. In the present review efforts have been made to through light on the various genetic determinants with large effects that underlie with the association of these traits to this syndrome. The heterogeneity and multifactorial heritability of MetS, however, has been a challenge towards understanding the factors underlying the association of these traits.
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Affiliation(s)
- Sanjeev Rana
- grid.440710.60000 0004 1756 649XHuman Genomics Research Group, Shri Mata Vaishno Devi University (SMVDU), Katra, J and K India
| | - Shafat Ali
- grid.412997.00000 0001 2294 5433Cytogenetics and Molecular Biology Laboratory, Centre of Research for Development, University of Kashmir, Srinagar, J and K India
| | - Hilal Ahmad Wani
- grid.412997.00000 0001 2294 5433Department of Biochemistry, Government Degree College Sumbal, Bandipora, J and K India
| | | | - Swarkar Sharma
- grid.440710.60000 0004 1756 649XHuman Genomics Research Group, School of Biotechnology, Shri Mata Vaishno Devi University (SMVDU), Katra, J and K India
| | - Muneeb U Rehman
- grid.56302.320000 0004 1773 5396College of Clinical Pharmacy, King Saud University, Riyadh, Saudi Arabia
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Peripheral and cognitive benefits of physical exercise in a mouse model of midlife metabolic syndrome. Sci Rep 2022; 12:3260. [PMID: 35228593 PMCID: PMC8885684 DOI: 10.1038/s41598-022-07252-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 02/08/2022] [Indexed: 11/24/2022] Open
Abstract
Despite national and international efforts for the prevention of metabolic syndrome and its underlying diseases/disorders, its prevalence is still rising, especially in the middle-aged population. In this study, we explore the effect of high fat diet on the development of metabolic syndrome in middle-aged mice and to evaluate the potential benefits of voluntary physical exercise on the periphery as well as brain cognitive function, and to explore the potential mechanisms. We found that metabolic syndrome developed at middle age significantly impairs cognitive function and the impairment is associated with gene dysregulation in metabolic pathways that are largely affecting astrocytes in the brain. Eight-week voluntary wheel running at a frequency of three times a week, not only improves peripheral glucose control but also significantly improves learning and memory. The improvement of cognitive function is associated with restoration of gene expression involved in energy metabolism in the brain. Our study suggests that voluntary physical exercise is beneficial for metabolic syndrome-induced peripheral as well as cognitive dysfunction and can be recommended as therapeutic intervention for metabolic syndrome and associated diseases.
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Caspers M, Blocquiaux S, Charlier R, Lefevre J, De Bock K, Thomis M. Metabolic fitness in relation to genetic variation and leukocyte DNA methylation. Physiol Genomics 2019; 51:12-26. [DOI: 10.1152/physiolgenomics.00077.2018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Metabolic syndrome (MetS) is a highly prevalent condition causing increased risk of several life-threatening diseases. MetS has a pronounced hereditary basis but is also influenced by environmental factors, partly through epigenetic mechanisms. In this study, the five phenotypes underlying MetS were incorporated into a continuous score for metabolic fitness (MF), and associations with both genotypic variation and leukocyte DNA methylation were investigated. Baseline MF phenotypes (waist circumference, blood pressure, blood glucose, serum triglycerides, and high-density lipoproteins) of 710 healthy Flemish adults were measured. After a 10 yr period, follow-up measures were derived from 618 of these subjects. Genotyping was performed for 65 preselected MF-related genetic variants. Next, full genetic predisposition scores (GPSs) were calculated, combining genotype scores of multiple genetic variants. Additionally, stepwise GPSs were constructed, including only the most predictive genetic variants for the different MF phenotypes. For a subset of 68 middle-aged men, global and gene-specific DNA methylation was investigated, and a biological pathway analysis was performed. The full GPSs were predictive for some baseline MF phenotypes, but not for changes over time. Only a limited number of genetic variants were significantly predictive individually. On the contrary, global and gene-specific DNA methylation was associated with changes in the MF phenotypes rather than with the baseline measures, indicating that effects of DNA methylation on MF are somewhat delayed. Furthermore, several biological pathways were associated with the MF phenotypes through gene promoter methylation. For CETP, G6PC2, MC4R, and TFAP2B both a genetic and epigenetic relationship was found with MF.
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Affiliation(s)
- M. Caspers
- Department of Movement Sciences, KU Leuven, Leuven, Belgium
| | - S. Blocquiaux
- Department of Movement Sciences, KU Leuven, Leuven, Belgium
| | - R. Charlier
- Department of Movement Sciences, KU Leuven, Leuven, Belgium
| | - J. Lefevre
- Department of Movement Sciences, KU Leuven, Leuven, Belgium
| | - K. De Bock
- Department of Health Sciences and Technology, ETH Zürich, Schwerzenbach, Switzerland
| | - M. Thomis
- Department of Movement Sciences, KU Leuven, Leuven, Belgium
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Jéru I, Vatier C, Araujo-Vilar D, Vigouroux C, Lascols O. Clinical Utility Gene Card for: Familial partial lipodystrophy. Eur J Hum Genet 2016; 25:ejhg2016102. [PMID: 27485410 DOI: 10.1038/ejhg.2016.102] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 06/13/2016] [Accepted: 06/28/2016] [Indexed: 12/18/2022] Open
Affiliation(s)
- Isabelle Jéru
- AP-HP, Hôpital Saint-Antoine, Laboratoire Commun de Biologie et Génétique Moléculaires, Paris, France.,Sorbonne Universités, UPMC Univ Paris 06, INSERM, UMR_S938, Centre de Recherche Saint-Antoine, Paris, France.,ICAN, Institute of Cardiometabolism and Nutrition, Paris, France
| | - Camille Vatier
- AP-HP, Hôpital Saint-Antoine, Service d'Endocrinologie, Paris, France.,Sorbonne Universités, UPMC Univ Paris 06, INSERM, UMR_S938, Centre de Recherche Saint-Antoine, Paris, France.,ICAN, Institute of Cardiometabolism and Nutrition, Paris, France
| | - David Araujo-Vilar
- CIMUS Biomedical Research Institute, University of Santiago de Compostela-IDIS Santiago de Compostela, Spain
| | - Corinne Vigouroux
- AP-HP, Hôpital Saint-Antoine, Laboratoire Commun de Biologie et Génétique Moléculaires, Paris, France.,AP-HP, Hôpital Saint-Antoine, Service d'Endocrinologie, Paris, France.,Sorbonne Universités, UPMC Univ Paris 06, INSERM, UMR_S938, Centre de Recherche Saint-Antoine, Paris, France.,ICAN, Institute of Cardiometabolism and Nutrition, Paris, France
| | - Olivier Lascols
- AP-HP, Hôpital Saint-Antoine, Laboratoire Commun de Biologie et Génétique Moléculaires, Paris, France.,Sorbonne Universités, UPMC Univ Paris 06, INSERM, UMR_S938, Centre de Recherche Saint-Antoine, Paris, France.,ICAN, Institute of Cardiometabolism and Nutrition, Paris, France
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Sookoian S, Pirola CJ. Review: Genetics of the cardiometabolic syndrome: new insights and therapeutic implications. Ther Adv Cardiovasc Dis 2016; 1:37-47. [DOI: 10.1177/1753944707082702] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Although the definition of the phenotype is imprecise, cardiometabolic syndrome (CMS) includes a constellation of complex diseases such as type 2 diabetes, dislipidemias, central obesity and hypertension, proinflammatory and prothrombotic states, ovarian polycystosis and fatty liver. The genetics of each disease is complex in itself and varies in spectrum from monogenic and syndromic models of inheritance, usually rare, to the most common polygenic and multifactorial forms. In addition, human studies using the candidate-gene approach indicate that common genetic variants of several genes are associated with the development of CMS. Genome-wide scans have also provided several chromosomal regions associated with some of the components of CMS. In addition, through comparative genomics animal models can generate a map for candidate loci in humans and a promising approach is offered by bioinformatic tools for gene prioritization. Lastly, the involvement of genes whose products are already the targets for approved drugs, such as SLC6A4, PPARα and PPARγ , in the development of CMS suggests new avenues for CMS pharmacological treatment.
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Affiliation(s)
- Silvia Sookoian
- Departamento de Sustancias Vasoactivas y Cardiología Molecular, Instituto de Investigaciones A Lanari, Universidad de Buenos Aires-CONICET, Ciudad Autónoma de Buenos Aires, Argentina
| | - Carlos J. Pirola
- Departamento de Sustancias Vasoactivas y Cardiología Molecular, Instituto de Investigaciones A Lanari, Universidad de Buenos Aires-CONICET, Ciudad Autónoma de Buenos Aires, Argentina, , pirola.carlos@lanari. fmed.uba.ar
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The blood pressure and hypertension experience among North American Indigenous populations. J Hypertens 2014; 32:724-34. [DOI: 10.1097/hjh.0000000000000084] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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8
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Are hypertriglyceridemia and low HDL causal factors in the development of insulin resistance? Atherosclerosis 2014; 233:130-8. [DOI: 10.1016/j.atherosclerosis.2013.12.013] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Revised: 11/18/2013] [Accepted: 12/05/2013] [Indexed: 02/07/2023]
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Foulds HJA, Warburton DER, Bredin SSD. A systematic review of physical activity levels in Native American populations in Canada and the United States in the last 50 years. Obes Rev 2013; 14:593-603. [PMID: 23577646 DOI: 10.1111/obr.12032] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2012] [Revised: 02/16/2013] [Accepted: 02/18/2013] [Indexed: 11/28/2022]
Abstract
Physical activity is beneficial for many chronic conditions. However, activity levels of Native Americans are not well known. This systematic review investigated if Native American populations achieve the recommended physical activity levels, compared current and past activity levels, and assessed the ability of exercise training programmes to improve health outcomes among this population. Electronic databases (e.g. MEDLINE, EMBASE) were searched and citations were cross-referenced. Included articles reported physical activity levels or investigations among Native Americans. This search identified 89 articles: self-report (n = 61), accelerometry and pedometry (n = 10), metabolic monitoring (n = 10) and physical activity interventions (n = 17). Few adults were found to meet the physical activity recommendations (27.2% [95% confidence interval = 26.9-27.5%] self-report, 9% [4-14%] accelerometry). Among children/youth, 26.5% (24.6-28.4%) (self-report) to 45.7% (42.3-49.1%) (pedometry/accelerometry) met the recommendations. Adults and children/youth were generally identified as physically inactive (via doubly labelled water). Overall, Native American adults reported lower activity levels since 2000, compared to 1990s, although similar to 1980s. Few physical activity interventions employed strong methodologies, large sample sizes and objective outcome measures. There is a clear need to increase Native American populations' physical activity. Additional research is required to evaluate exercise training programmes among this population.
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Affiliation(s)
- H J A Foulds
- Cardiovascular Physiology and Rehabilitation Laboratory, Physical Activity Promotion and Chronic Disease Prevention Unit, University of British Columbia, Vancouver, British Columbia, Canada
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Abstract
Circadian rhythms occur in almost all species and control vital aspects of our physiology, from sleeping and waking to neurotransmitter secretion and cellular metabolism. Epidemiological studies from recent decades have supported a unique role for circadian rhythm in metabolism. As evidenced by individuals working night or rotating shifts, but also by rodent models of circadian arrhythmia, disruption of the circadian cycle is strongly associated with metabolic imbalance. Some genetically engineered mouse models of circadian rhythmicity are obese and show hallmark signs of the metabolic syndrome. Whether these phenotypes are due to the loss of distinct circadian clock genes within a specific tissue versus the disruption of rhythmic physiological activities (such as eating and sleeping) remains a cynosure within the fields of chronobiology and metabolism. Becoming more apparent is that from metabolites to transcription factors, the circadian clock interfaces with metabolism in numerous ways that are essential for maintaining metabolic homeostasis.
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Eckel-Mahan K, Sassone-Corsi P. Epigenetic Regulation of the Molecular Clockwork. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2013; 119:29-50. [DOI: 10.1016/b978-0-12-396971-2.00002-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Abstract
OBJECTIVE We evaluated the prevalence of type 2 diabetes, obesity and metabolic syndrome according to International Diabetes Federation criteria in the First Nations Cree community of Mistissini, Quebec. METHODS A cross-sectional study of 172 adults was performed as part of a broader regional environmental study. RESULTS Type 2 diabetes, hyperinsulinemia and abdominal obesity were documented in 20%, 70% and 91% of participants, respectively. The prevalence of metabolic syndrome was 54%, with the main profile including abnormal plasma glucose levels (60%) associated with high triacylglycerol (40%). Women displayed the highest prevalence of abdominal obesity (99%). In both sexes, waist circumference was clearly associated with other metabolic parameters, such as blood glucose and lipid profile (p<0.0001). However, a significant proportion of the population (13%), especially women, showed high waist circumference with no metabolic disturbances. CONCLUSION Among the Cree population of Mistissini, the results suggest that the high prevalence of abdominal obesity occurs most frequently in women, and earlier in women than in men. Subsequent metabolic disturbances associated with metabolic syndrome develop with age, supporting the core role of abdominal obesity in the cascade of events leading to diabetes and cardiovascular disease.
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Cholesteryl ester transfer protein (CETP) −629C/A polymorphism and it,s effects on the serum lipid levels in metabolic syndrome patients. Mol Biol Rep 2012; 39:9529-34. [DOI: 10.1007/s11033-012-1817-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2011] [Accepted: 06/10/2012] [Indexed: 11/27/2022]
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Kellett S, Poirier P, Dewailly E, Sampasa H, Chateau-Degat ML. Is severe obesity a cardiovascular health concern in the Inuit population? Am J Hum Biol 2012; 24:441-5. [PMID: 22362722 DOI: 10.1002/ajhb.22241] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2011] [Revised: 12/23/2011] [Accepted: 12/26/2011] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVES Obesity is rising globally and severe obesity (SO) [body mass index (BMI) = 40 kg/m(2) or = 35 kg/m(2) with co-morbidity] is growing at a much faster rate. Amongst the Inuit, evolution of SO remains unknown. We investigated whether the level of SO changed and whether the cardio-metabolic profile improved or deteriorated in Nunavik Inuit between 1992 and 2004. METHODS SO subjects were selected from two comparable population-based studies. These studies were undertaken in Nunavik (Quebec, Canada), and were performed in two different time frames, separated by 12 years. Physiological (lipid profile, fasting insulin, fasting glucose, and blood pressure) as well as anthropometric data (BMI, waist circumference, and waist to hip ratio) were collected in both studies. RESUTLS There was approximately a fourfold increase in the prevalence of SO in comparable age groups. This increase affected both genders between 1992 and 2004. Smoking rates in SO populations have significantly decreased during this period, from 85% to 41% (P < 0.0001). Overall, there were no statistically significant differences in the cardio-metabolic profile (insulin, total cholesterol, LDL-cholesterol, HDL-cholesterol, triglycerides, systolic and diastolic blood pressures, BMI, and waist to hip ratio). There was, however, a significant increase in waist circumference (P < 0.001), especially in women (P < 0.01). Type 2 diabetes remained stable, at around 40% in this population. CONCLUSION Although the prevalence of SO increased, the cardio-metabolic profile remained stable. Nevertheless, regular monitoring of chronic disease in this population remains crucial.
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Affiliation(s)
- Samantha Kellett
- Institut universitaire de cardiologie et de pneumologie de Québec, Québec, Québec, Canada
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Foulds HJ, Bredin SS, Warburton DE. An evaluation of the physical activity and health status of British Columbian Aboriginal populations. Appl Physiol Nutr Metab 2012; 37:127-37. [DOI: 10.1139/h11-138] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Aboriginal people have experienced elevated rates of obesity, diabetes, cardiovascular disease, and other chronic conditions that are disproportionate to the general Canadian population. We sampled British Columbian Aboriginal populations to determine the current health status of this population. A total of 882 Aboriginal adults ≥16 years of age from 25 locations around the province were sampled from 2007–2011. Health measurements evaluated included body mass index, waist circumference, physical activity, smoking behaviours, and resting blood pressure as well as histories of diabetes, cardiovascular disease, and hypertension. Nonfasting measures of blood sugar, total cholesterol, and high-density lipoprotein cholesterol were also recorded. We used logistical regression to quantify variations in diabetes and cardiovascular disease risk factors with age, gender, geographic location, on- and off-reserve and urban–rural areas of residence, smoking, and physical activity behaviour. The prevalence of diabetes, hypertension, and high total cholesterol were found to be greater among males, while females experienced greater rates of abdominal obesity and physical inactivity. Rates of chronic conditions were similar across on- and off-reserve, urban–rural areas, and geographic region residences, though rural, on-reserve, and northern residents experienced greater risk of poor health status. Larger proportions of on-reserve, rural, and interior individuals were found to be more physically inactive. Aboriginal populations still experience substantially poorer health status in comparison with the general population. Initiatives to improve the health of this population are urgently needed addressing all sectors of the Aboriginal population, all geographic regions, and all areas of residence, with special emphasis on rural, on-reserve, and northern populations.
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Affiliation(s)
- Heather J.A. Foulds
- Cardiovascular Physiology and Rehabilitation Laboratory, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
- Experimental Medicine Program, Faculty of Medicine, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
- Physical Activity and Chronic Disease Prevention Unit, Vancouver, BC V6T 1Z3, Canada
| | - Shannon S.D. Bredin
- Physical Activity and Chronic Disease Prevention Unit, Vancouver, BC V6T 1Z3, Canada
- Cognitive and Functional Learning Laboratory, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Darren E.R. Warburton
- Cardiovascular Physiology and Rehabilitation Laboratory, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
- Experimental Medicine Program, Faculty of Medicine, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
- Physical Activity and Chronic Disease Prevention Unit, Vancouver, BC V6T 1Z3, Canada
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The effectiveness of community based physical activity interventions with Aboriginal peoples. Prev Med 2011; 53:411-6. [PMID: 21983587 DOI: 10.1016/j.ypmed.2011.09.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2011] [Revised: 09/15/2011] [Accepted: 09/21/2011] [Indexed: 11/23/2022]
Abstract
UNLABELLED Though historically rare, Aboriginal individuals continue to experience greater levels of cardiovascular disease than the general Canadian population. Increasing evidence indicates rising sedentary behaviors from the traditional healthy and active lifestyles of this population. OBJECTIVE This investigation aimed to examine the health benefits of a community-based physical activity intervention for Aboriginal Canadians. METHODS From 2007-2010, 273 participants from the province of British Columbia, Canada were recruited through 21 Aboriginal communities representing male and females of wide ranging ages and health statuses. Participants attended identical testing of body composition, blood pressure, total and high density lipoprotein cholesterols, and physical activity behavior pre-and post-training. Participants completed one of three self-selected 13 week interventions: walking (n=149), walk/running (n=86), or running (n=27). RESULTS Improvements in health measures were observed for both male and female participants of all age groups and all three training programs. Male and female participants' improvements included waist circumference: 2.7 cm and 2.2 cm, total cholesterol: 0.18 mmol/L and 0.12 mmol/L, and systolic blood pressure: 2.6mm Hg and 1.5mm Hg, respectively. CONCLUSIONS The self-selected intensities program was successful in improving health status and physical activity for Aboriginal adults of all ages, genders and activity programs.
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Foulds HJA, Bredin SSD, Warburton DER. The prevalence of overweight and obesity in British Columbian Aboriginal adults. Obes Rev 2011; 12:e4-e11. [PMID: 21382152 DOI: 10.1111/j.1467-789x.2010.00844.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Overweight and obesity among Aboriginal populations has been a growing challenge within Canada. This investigation aimed to identify the prevalence of overweight and obesity within British Columbian adult Aboriginal populations including both on and off reserve individuals through direct measurement. Further, this study stratified the variations in these rates according to age, gender and geographic region. Weight, height and waist circumference (WC) were measured via standardized procedures, and body mass index (BMI) was calculated. The mean body composition indicators were above recommended for men (BMI = 30.3 ± 5.6 kg m(-2) ; WC = 104.2 ± 14.7 cm) and women (BMI = 30.9 ± 7.2 kg m(-2); WC= 99.3 ± 17.1 cm), respectively. Rates of obesity for men and women were similar, 48.4% and 48.7%, respectively, and showed significant increases with age. Abdominal obesity (AO) was significantly greater among female participants, 69.0% compared with 52.7% in men, while both genders also demonstrated significant increases in AO with age. Both obesity and AO rates were found to be significantly greater in the Northern and Interior regions of the province in comparison to the Vancouver/Lower Mainland region. Alarmingly high rates of obesity and AO were observed in this population in men and women at every age and geographic region.
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Affiliation(s)
- H J A Foulds
- Cardiovascular Physiology and Rehabilitation Laboratory Experimental Medicine Program, Faculty of Medicine, Vancouver, Canada
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Heidarian E, Jafari-Dehkordi E, Seidkhani-Nahal A. Effect of garlic on liver phosphatidate phosphohydrolase and plasma lipid levels in hyperlipidemic rats. Food Chem Toxicol 2011; 49:1110-4. [DOI: 10.1016/j.fct.2011.02.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2010] [Revised: 11/30/2010] [Accepted: 02/01/2011] [Indexed: 11/26/2022]
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Procopciuc LM, Sitar-Tăut A, Pop D, Sitar-Tăut DA, Olteanu I, Zdrenghea D. Renin angiotensin system polymorphisms in patients with metabolic syndrome (MetS). Eur J Intern Med 2010; 21:414-8. [PMID: 20816596 DOI: 10.1016/j.ejim.2010.06.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2010] [Revised: 04/26/2010] [Accepted: 06/01/2010] [Indexed: 10/19/2022]
Abstract
BACKGROUND The genes associated with hypertension could be genetic risk factors for metabolic syndrome (MetS). AIM To determine the frequency of M235T and T174M-AGT, I/D-ACE and A1166C-AGTR1 in hypertensive patients with MetS and to evaluate the relationship between these polymorphisms and central obesity and dyslipidemia, respectively. MATERIALS AND METHODS We performed AGT, AGTR1 and ACE genotyping in 56 hypertensive women (24 with MetS) and 71 normotensive women using PCR-RFLP methods and PCR, respectively. RESULTS Hypertensive patients carrying the mutated TT235, MM174 and DD genotypes had an 1.53 (p=0.56), 1.78 (p=0.52) and 1.28 (p=0.78)-fold increased risk to develop MetS. Hypertensive carriers of both mutated TT235 and MM174 or TT235 and D/D or TT235 and CC+AC genotypes had an 8.15 (p=0.04), 4.83 (p=0.04) and 10.53 (p=0.05)-fold increased risk to develop MetS. Hypertensive patients with MetS and TT, D/D or CC genotypes had higher body mass index compared to hypertensive patients without MetS (p</=0.05 for all the genotypes). Hypertensive patients with MetS and TT235, MM174, D/D or CC1166 genotypes had higher triglyceride levels, lower HDL-cholesterol levels and higher waist circumference compared to hypertensive patients without MetS (p</=0.05, except for the association between CC1166 and HDL-cholesterol level). CONCLUSIONS The effect of the T174M, I/D and A1166C polymorphisms on MetS may depend on the M235T polymorphism. Among hypertensive subjects with MetS, the presence of TT235, MM174, DD and CC1166 genotypes could be a risk factor for central obesity and dyslipidemia.
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Affiliation(s)
- Lucia Maria Procopciuc
- Department of Medical Biochemistry, Iuliu Hatieganu University of Medicine and Pharmacy, 8/14 Padis Street, Cluj-Napoca, Romania
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20
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Abstract
In the past several years, remarkable progress has been made in the understanding of the mechanisms of premature aging. These rare, genetic conditions offer valuable insights into the normal aging process and the complex biology of cardiovascular disease. Many of these advances have been made in the most dramatic of these disorders, Hutchinson–Gilford progeria syndrome. Although characterized by features of normal aging such as alopecia, skin wrinkling, and osteoporosis, patients with Hutchinson–Gilford progeria syndrome are affected by accelerated, premature arteriosclerotic disease that leads to heart attacks and strokes at a mean age of 13 years. In this review, we highlight recent advances in the biology of premature aging uncovered in Hutchinson–Gilford progeria syndrome and other accelerated aging syndromes, advances that provide insight into the mechanisms of cardiovascular diseases ranging from atherosclerosis to arrhythmias.
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Affiliation(s)
- Brian C Capell
- Genome Technology Branch, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD 20892-2486, USA
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21
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Bennouar N, Allami A, Azeddoug H, Bendris A, Laraqui A, El Jaffali A, El Kadiri N, Benzidia R, Benomar A, Fellat S, Benomar M. Thermolabile methylenetetrahydrofolate reductase C677T polymorphism and homocysteine are risk factors for coronary artery disease in Moroccan population. J Biomed Biotechnol 2007; 2007:80687. [PMID: 17497026 PMCID: PMC1852902 DOI: 10.1155/2007/80687] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2006] [Revised: 12/20/2006] [Accepted: 01/09/2007] [Indexed: 11/27/2022] Open
Abstract
Increased plasma total homocysteine (tHcy) levels have been shown to be a risk factor for coronary artery disease (CAD). The common methylenetetrahydrofolate reductase C677T (MTHFR C677T) polymorphism has been reported to be a strong predictor of mild hyperhomocysteinaemia (HHcy). We assessed whether this mutation was associated with increased risk of CAD and plasma levels of tHcy. We also evaluated interactions between this polymorphism, mild elevated tHcy levels and conventional risk factors of CAD. Method. Using PCR-RFLP analysis, we studied the frequency of the C677T genotypes and its effect on CAD and on tHcy concentrations in 400 subjects without and with CAD angiographically confirmed. There were 210 subjects with CAD and 190 subjects without CAD. Results. The frequencies of the C677T genotypes were 53% (59.5% in controls versus 48.1% in cases), 34.8% (32.1 in controls versus 37.1 in cases), and 11.8% (8.4% in controls versus 14.8% in cases), respectively, for 677CC, 677CT, and 677TT. The genotype frequencies were significantly different between case and control groups (P < .05). The 677T allele enhances the risk of CAD associated to HHcy (P < .01). In multivariate analysis models, MTHFR C677T polymorphism effect on CAD was masked by other risk factors. HHcy was only and independently influenced by MTHFR polymorphism and smoking habits, and it is a strong predictor of CAD independently of conventional risk factors. Conclusion. Our data suggest that HHcy is strongly and independently associated to CAD risk increase; and MTHFR C677T polymorphism and smoking habits were the main predictors of tHcy levels. The CAD risk increase is mainly associated with mild HHcy in 677TT, whereas in 677CT and 677CC it is mainly associated with the conventional risk factors.
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Affiliation(s)
- Nawal Bennouar
- National League of Cardiology, Biochemistry and Molecular Biology Laboratory, Ibn-Sina Hospital, PB 1326, Rabat 10000, Morocco
- UFR of Biology and Healthy, Laboratory of Biochemistry and Molecular Biology, Faculty of Sciences, Hassan II University, Ain Chock, PB 5366, Maarif 20100, Casablanca, Morocco
- *Nawal Bennouar:
| | - Abdellatif Allami
- National League of Cardiology, Biochemistry and Molecular Biology Laboratory, Ibn-Sina Hospital, PB 1326, Rabat 10000, Morocco
- UFR of Cellular and Molecular Biology, Faculty of Sciences, Abdelmalek Es-saadi University, P.O. Box 2121, Tetuan 93000, Morocco
| | - Houssine Azeddoug
- UFR of Biology and Healthy, Laboratory of Biochemistry and Molecular Biology, Faculty of Sciences, Hassan II University, Ain Chock, PB 5366, Maarif 20100, Casablanca, Morocco
| | - Abdenbi Bendris
- UFR of Cellular and Molecular Biology, Faculty of Sciences, Abdelmalek Es-saadi University, P.O. Box 2121, Tetuan 93000, Morocco
| | - Abdelilah Laraqui
- National League of Cardiology, Biochemistry and Molecular Biology Laboratory, Ibn-Sina Hospital, PB 1326, Rabat 10000, Morocco
| | - Amal El Jaffali
- National League of Cardiology, Biochemistry and Molecular Biology Laboratory, Ibn-Sina Hospital, PB 1326, Rabat 10000, Morocco
| | - Nizar El Kadiri
- National League of Cardiology, Biochemistry and Molecular Biology Laboratory, Ibn-Sina Hospital, PB 1326, Rabat 10000, Morocco
| | - Rachid Benzidia
- Cardiology A Department, National League of Cardiology, Ibn-Sina Hospital, PB 1326, Rabat 10000, Morocco
| | - Anwar Benomar
- National League of Cardiology, Biochemistry and Molecular Biology Laboratory, Ibn-Sina Hospital, PB 1326, Rabat 10000, Morocco
| | - Seddik Fellat
- National League of Cardiology, Biochemistry and Molecular Biology Laboratory, Ibn-Sina Hospital, PB 1326, Rabat 10000, Morocco
| | - Mohamed Benomar
- Cardiology A Department, National League of Cardiology, Ibn-Sina Hospital, PB 1326, Rabat 10000, Morocco
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22
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Abstract
Few genes have generated as much recent interest as LMNA, LMNB1 and LMNB2, which encode the components of the nuclear lamina. Over 180 mutations in these genes are associated with at least 13 known diseases--the laminopathies. In particular, the study of LMNA, its products and the phenotypes that result from its mutation have provided important insights into subjects ranging from transcriptional regulation, the cell biology of the nuclear lamina and mechanisms of ageing. Recent studies have begun the difficult task of correlating the genotypes of laminopathies with their phenotypes, and potential therapeutic strategies using existing drugs, modified oligonucleotides and RNAi are showing real promise for the treatment of these diseases.
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Affiliation(s)
- Brian C Capell
- Genome Technology Branch, National Human Genome Research Institute, National Institutes of Health, 50 South Drive MSC8004, Bethesda, Maryland 20892-8004, USA
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Donkor J, Sariahmetoglu M, Dewald J, Brindley DN, Reue K. Three mammalian lipins act as phosphatidate phosphatases with distinct tissue expression patterns. J Biol Chem 2006; 282:3450-7. [PMID: 17158099 DOI: 10.1074/jbc.m610745200] [Citation(s) in RCA: 288] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
We previously identified mutations in the Lpin1 gene, encoding lipin-1, as the underlying cause of lipodystrophy in the fatty liver dystrophy (fld) mutant mouse. Lipin-1 is normally expressed at high levels in adipose tissue and skeletal muscle, and deficiency in the fld mouse causes impaired adipose tissue development, insulin resistance, and altered energy expenditure. We also identified two additional lipin protein family members of unknown function, lipin-2 and lipin-3. Han et al. (Han, G. S., Wu, W. I., and Carman, G. M. (2006) J. Biol. Chem. 281, 9210-9218) recently demonstrated that the single lipin homolog in yeast, Smp2, exhibits phosphatidate phosphatase type-1 (PAP1) activity, which has a key role in glycerolipid synthesis. Here we demonstrate that lipin-1 accounts for all of the PAP1 activity in white and brown adipose tissue and skeletal muscle. However, livers of lipin-1-deficient mice exhibited normal PAP1 activity, indicating that other members of the lipin protein family could have PAP1 activity. Consistent with this possibility, recombinant lipin-2 and lipin-3 possess PAP1 activity. Each of the three lipin family members showed Mg2+-dependent activity that was specific for phosphatidate under the conditions employed. The different lipins showed distinct tissue expression patterns. Our results establish the three mammalian lipin proteins as PAP1 enzymes and explain the biochemical basis for lipodystrophy in the lipin-1-deficient fld mouse.
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Affiliation(s)
- Jimmy Donkor
- Department of Human Genetics and Medicine, David Geffen School of Medicine, University of California, Los Angeles, California 90095, USA
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24
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Abstract
Dragonflies infected with noninvasive gregarine gut parasites (Apicomplexa: Eugregarinorida) [corrected] have reduced flight-muscle performance, an inability to metabolize lipid in their muscles, twofold-elevated hemolymph carbohydrate concentrations, and they accumulate fat in their thorax in a manner analogous to mammalian obesity. Gregarine infection is associated with inappropriate responses of hemolymph carbohydrate concentration to insulin and with chronic activation in the flight muscles of p38 MAP kinase, a signaling molecule involved in immune and stress responses. Short-term exposure to gregarine excretory/secretory products caused elevated blood carbohydrate and p38 MAPK activation in healthy individuals. These characteristics comprise a set of symptoms and processes that are known in mammals as metabolic syndrome but which have not previously been described in other animal taxa. In addition to expanding the known taxonomic breadth of metabolic disease, these results indicate that insects may be useful experimental models for studying its underlying biology and mechanisms.
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Affiliation(s)
- Rudolf J Schilder
- Department of Biology, 208 Mueller Laboratory, Pennsylvania State University, University Park, PA 16802, USA.
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25
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Pollex RL, Hegele RA. Genetic determinants of the metabolic syndrome. ACTA ACUST UNITED AC 2006; 3:482-9. [PMID: 16932765 DOI: 10.1038/ncpcardio0638] [Citation(s) in RCA: 113] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2005] [Accepted: 05/22/2006] [Indexed: 12/16/2022]
Abstract
The metabolic syndrome is a commonly encountered clinical phenotype presenting as concurrent metabolic abnormalities, including central obesity, dysglycemia, dyslipidemia, and hypertension. Several definitions exist, and it is debated whether or not the clustered risk factors impart a higher cardiovascular risk than the simple sum of the individual components. Nevertheless, the concept of a metabolic syndrome has proven helpful in emphasizing the importance of obesity, insulin resistance and related traits in relation to cardiovascular disease risk. Furthermore, the metabolic syndrome as defined by the National Cholesterol Education Program appears to have a component of heritability, which suggests a genetic basis. Indeed, patients with certain rare single-gene disorders express clusters of abnormalities commonly seen in the metabolic syndrome. Moreover, studies indicate that common genetic variants are associated with the development of this syndrome, although the associations are quite weak and replication of findings has been poor. As with most complex traits, it is premature to propose molecular genetic testing for diagnosis, treatment or both. Unresolved issues include the roles of gene-environment interactions, ethnicity, and sex. In this review, we look at the currently available evidence for common genes that predispose to the development of the metabolic syndrome.
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Affiliation(s)
- Rebecca L Pollex
- Vascular Biology Group, Robarts Research Institute, London, ON, Canada
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26
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Kainuma M, Fujimoto M, Sekiya N, Tsuneyama K, Cheng C, Takano Y, Terasawa K, Shimada Y. Cholesterol-fed rabbit as a unique model of nonalcoholic, nonobese, non-insulin-resistant fatty liver disease with characteristic fibrosis. J Gastroenterol 2006; 41:971-80. [PMID: 17096066 DOI: 10.1007/s00535-006-1883-1] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2006] [Accepted: 07/27/2006] [Indexed: 02/04/2023]
Abstract
BACKGROUND The number of patients suffering from metabolic syndrome is increasing rapidly. Metabolic syndrome causes severe pathological changes in various organs, including the liver, and its main phenotype is nonalcoholic fatty liver disease (NAFLD). NAFLD has a broad spectrum ranging from simple fatty change to severe steatohepatitis with marked fibrosis. Recently, several experimental animal models for NAFLD have been proposed. However, most were established by rather artificial conditions such as genetic alteration. In the present study, we tried to establish a unique animal model mimicking some of the physiopathological features of NAFLD using high-cholesterol-fed rabbits. METHODS Male rabbits fed with standard rabbit food containing 1% cholesterol for 8 weeks and 12 weeks were compared to controls (six rabbits/group). The weight of food was strictly restricted to 100 g/rabbit per day. RESULTS Body weights and fasting plasma insulin levels showed no significant differences among the groups. In contrast, characteristic fine fibrosis was extended from perivenular to pericellular areas, and microvesicular fatty change with ballooning degeneration was observed in perivenular areas in livers of the cholesterol-fed rabbits. Increase of serum cholesterol level, activation of hepatic stellate cells, and exposure to oxidative stress were also recognized. CONCLUSIONS Cholesterol-fed rabbits share several physiopathological features of NAFLD. Because this model did not show insulin resistance or obesity, it may be useful for elucidating the mechanism of NAFLD related mainly to hyperlipidemia.
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Affiliation(s)
- Mosaburo Kainuma
- Department of Japanese Oriental Medicine, Faculty of Medicine, University of Toyama, 2630 Sugitani, Toyama, Japan
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Persson PB. From clinical insights to new therapies. Am J Physiol Regul Integr Comp Physiol 2006; 290:R124-5. [PMID: 16352857 DOI: 10.1152/ajpregu.00670.2005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Pontus B Persson
- Institute of Physiology, Humboldt University, Charité, Tucholskystr. 2, 10117 Berlin, Germany.
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