Abstract:
BACKGROUND:Although evidence indicates that fatty acids (FA) can affect insulin resistance (IR), not all FA contribute equally to the process. Indeed, monounsaturated FA (MUFA) and polyunsaturated FA (PUFA) are reported to reduce IR, whereas saturated FA (SFA) and trans FA appear to increase IR. However, it is not yet clear how individual FA are associated with markers of IR, and whether these relationships are influenced by ethnicity and/or sex. Therefore, the goal of this study was to examine the ethnic- and sex-specific relationships between plasma FA and markers of IR in a cohort of healthy young Caucasian, East Asian, and South Asian adults. METHODS:Gas chromatography was used to quantify fasting plasma FA from young Canadian adults (22.6 ± 0.1 yrs) of Caucasian (n = 461), East Asian (n = 362), or South Asian (n = 104) descent. Linear regression models were used to investigate associations between plasma FA and markers of IR (i.e. fasting insulin, glucose, and HOMA-IR) according to ethnicity and sex. RESULTS:Numerous significant associations (P < 0.05, adjusted for multiple testing) were identified between individual FA and markers of IR, with the majority identified in Caucasians. For SFA, positive associations were found between 14:0 and fasting insulin and HOMA-IR in Caucasian and East Asian populations, and 18:0 and fasting glucose in Caucasians only. Several positive associations were also found for specific MUFA (18:1t11 and 18:1t6-8 with HOMA-IR, and 18:1c9 with fasting glucose) and PUFA (18:2n6 with fasting glucose and 18:2c9t11 with HOMA-IR) in Caucasian adults only. Most of the aforementioned associations were stronger in males compared to females. Interestingly, no significant associations were found between FA and markers of IR in South Asian adults. CONCLUSIONS:We report numerous associations between plasma FA and markers of IR in Caucasian and East Asian populations, but not in South Asian individuals. Furthermore, these associations appeared to be more robust in men. This demonstrates the importance of investigating associations between FA and markers of IR in an ethnic- and sex-specific manner in order to better understand the contribution of plasma FA to the development of IR and type-2 diabetes.
journal_name
Nutr Metab (Lond)journal_title
Nutrition & metabolismauthors
Ralston JC,Zulyniak MA,Nielsen DE,Clarke S,Badawi A,El-Sohemy A,Ma DW,Mutch DMdoi
10.1186/1743-7075-10-42subject
Has Abstractpub_date
2013-06-17 00:00:00pages
42issue
1issn
1743-7075pii
1743-7075-10-42journal_volume
10pub_type
杂志文章abstract:Background:To examine the impact of changes in all lipid measures including total cholesterol (TC), log-transformed triglycerides (Ln-TG), high density lipoprotein cholesterol (HDL-C), low density lipoprotein cholesterol (LDL-C), non-HDL-C, TC/HDL-C and Ln TG/HDL-C, over an approximate 3 year duration, on incident type...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
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更新日期:2018-07-11 00:00:00
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pub_type: 杂志文章
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doi:10.1186/s12986-016-0134-6
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-5-7
更新日期:2008-03-19 00:00:00
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-2-6
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-11-57
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pub_type: 杂志文章
doi:10.1186/1743-7075-7-33
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/s12986-019-0356-5
更新日期:2019-05-28 00:00:00
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journal_title:Nutrition & metabolism
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doi:10.1186/1743-7075-11-32
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-11-51
更新日期:2014-10-24 00:00:00
abstract:: Impaired kidney function and chronic kidney disease (CKD) leading to kidney failure and end-stage renal disease (ESRD) is a serious medical condition associated with increased morbidity, mortality, and in particular cardiovascular disease (CVD) risk. CKD is associated with multiple physiological and metabolic disturb...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-9-36
更新日期:2012-04-26 00:00:00
abstract:Background:The health benefits of dietary fibre (DF) intake on non-alcoholic fatty liver disease (NAFLD) are controversial. Thus, this large cross-sectional study aimed to determine the associations between DF intake and the prevalence of newly-diagnosed NAFLD in a large general population. Methods:A total of 23,529 p...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/s12986-019-0420-1
更新日期:2020-01-13 00:00:00
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-9-35
更新日期:2012-04-24 00:00:00
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-9-90
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-4-17
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
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journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-7-82
更新日期:2010-11-04 00:00:00
abstract::An association between arteriosclerosis and homocysteine (Hcy) was first demonstrated in 1969. Hcy is a sulfur containing amino acid derived from the essential amino acid methionine (Met). Hyperhomocysteinemia (HHcy) was subsequently shown in several age-related pathologies such as osteoporosis, Alzheimer's disease, P...
journal_title:Nutrition & metabolism
pub_type: 杂志文章,评审
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更新日期:2017-12-22 00:00:00
abstract:BACKGROUND:Sub-optimally nourished rats show reduced growth, biochemical and physiological changes. However, no one has assessed metabolic rate adaptations in rats subjected to chronic suboptimal nutrition (CSN). In this study energy expenditure (EE; kcal/100 g body weight) and physical activity (PA; oscillations in we...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-3-11
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abstract:BACKGROUND:A number of different pathways to obesity with different metabolic outcomes are recognised. Prenatal undernutrition in rats leads to increased fat deposition in adulthood. However, the form of obesity is metabolically distinct from obesity induced through other pathways (e.g. diet-induced obesity). Previous ...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-11-50
更新日期:2014-10-18 00:00:00
abstract:BACKGROUND:DNA methylation is an epigenetic phenomenon that can modulate gene function by up or downregulation of gene expression. Vitamin B12 and folate pathways are involved in the production of S-Adenosylmethionine, the universal methyl donor. FINDINGS:Brain vitamin B12 concentration and global DNA methylation was ...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-9-41
更新日期:2012-05-18 00:00:00
abstract:BACKGROUND:To study the effects of a pre-germinated brown rice diet (PR) on diabetic neuropathy in streptozotocin (STZ)-induced diabetic rats. METHODS:The effects of a PR diet on diabetic neuropathy in STZ-induced diabetic rats were evaluated and compared with those fed brown rice (BR) or white rice (WR) diets with re...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-4-25
更新日期:2007-11-23 00:00:00
abstract:BACKGROUND:Recent data suggest that an increased level of high-density lipoprotein cholesterol (HDL-C) is not causally protective against heart disease, shifting focus to other sub-phenotypes of HDL. Prior work on the effects of dietary intakes has focused largely on HDL-C. The goal of this study was to identify the di...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/1743-7075-11-44
更新日期:2014-09-15 00:00:00
abstract:Background:The aim of this study was to investigate how the signaling pathway downstream of mTOR/S6K1 contributes to the regulation of SREBP-1c expression during lipogenesis in HepG2 cells. Methods:The model of steatosis was established using human hepatocytes HepG2 and inducting them with sodium palmitate. mTOR, S6K1...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/s12986-018-0268-9
更新日期:2018-05-02 00:00:00
abstract:Objective:We aimed to describe the 25-hydroxyvitamin D (25(OH)D) status of southern Chinese individuals by a high-accuracy liquid chromatography tandem mass spectrometry (LC-MS/MS) method which can trace to reference measurement procedure. Materials and methods:From January 2018 to June 2019, a total of 4775 southern ...
journal_title:Nutrition & metabolism
pub_type: 杂志文章
doi:10.1186/s12986-020-0427-7
更新日期:2020-01-17 00:00:00