Sex Differences in Blood HDL-c, the Total Cholesterol/HDL-c Ratio, and Palmitoleic Acid are Not Associated with Variants in Common Candidate Genes

Shannon L. Klingel; Kaitlin Roke; Bertha Hidalgo; Stella Aslibekyan; Robert J. Straka; Ping An; Michael A. Province; Paul N. Hopkins; Donna K. Arnett; Jose M. Ordovas; Chao Qiang Lai; David M. Mutch

doi:10.1007/s11745-017-4307-5

Sex Differences in Blood HDL-c, the Total Cholesterol/HDL-c Ratio, and Palmitoleic Acid are Not Associated with Variants in Common Candidate Genes

Shannon L. Klingel, Kaitlin Roke, Bertha Hidalgo, Stella Aslibekyan, Robert J. Straka, Ping An, Michael A. Province, Paul N. Hopkins, Donna K. Arnett, Jose M. Ordovas, Chao Qiang Lai, David M. Mutch

Experimental and Clinical Pharmacology

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

Blood lipids are associated with cardiovascular disease (CVD) risk. Moreover, circulating lipid and fatty acid levels vary between men and women, and evidence demonstrates these traits may be influenced by single nucleotide polymorphisms (SNP). Sex-genotype interactions related to blood lipids and fatty acids have been poorly investigated and may help elucidate sex differences in CVD risk. The goal of this study was to investigate if the influence of SNPs previously associated with blood lipids and fatty acids varies in a sex-specific manner. Lipids and fatty acids were measured in serum and red blood cells (RBC), respectively, in 94 adults (18–30 years) from the GONE FISHIN’ cohort and 118 age-matched individuals from the GOLDN cohort. HDL-c levels were higher and the total cholesterol/HDL-c (TC/HDL-c) ratio was lower in women versus men (p < 0.01). RBC palmitoleic acid and the stearoyl-CoA desaturase index were both higher in women (p < 0.01). Fatty acid desaturase (FADS) pathway activity (estimated using the ratio of eicosapentaenoic acid/alpha-linolenic acid) was higher in men (p < 0.01). The AA genotype for rs1800775 in CETP had a lower TC/HDL-c ratio in men, but not women (p_int = 0.03). Independent of sex, major alleles for rs174537 in FADS1 (GG) and rs3211956 in CD36 (TT) had higher arachidonic acid, lower dihomo-γ-linoleic acid, and a higher FADS1 activity compared to minor alleles. The current study showed that blood lipid and fatty acid levels vary between healthy young men and women, but that the observed sex differences are not associated with common variants in candidate lipid metabolism genes.

Original language	English (US)
Pages (from-to)	969-980
Number of pages	12
Journal	Lipids
Volume	52
Issue number	12
DOIs	https://doi.org/10.1007/s11745-017-4307-5
State	Published - Dec 1 2017

Bibliographical note

Funding Information:
Acknowledgements This work was supported by Grant #030137 from the Ontario Ministry of Agriculture, Food and Rural Affairs (DMM), and by the U.S. Department of Agriculture—Agricultural Research Service, under Agreement no. 58-1950-4-003.

Funding Information:
This work was supported by Grant #030137 from the Ontario Ministry of Agriculture, Food and Rural Affairs (DMM), and by the U.S. Department of Agriculture?Agricultural Research Service, under Agreement no. 58-1950-4-003.

Publisher Copyright:
© 2017, AOCS.

Keywords

CD36
CETP
Cardiovascular risk
Fatty acid desaturase
Palmitoleic acid
SNP

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1007/s11745-017-4307-5

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Klingel, S. L., Roke, K., Hidalgo, B., Aslibekyan, S., Straka, R. J., An, P., Province, M. A., Hopkins, P. N., Arnett, D. K., Ordovas, J. M., Lai, C. Q., & Mutch, D. M. (2017). Sex Differences in Blood HDL-c, the Total Cholesterol/HDL-c Ratio, and Palmitoleic Acid are Not Associated with Variants in Common Candidate Genes. Lipids, 52(12), 969-980. https://doi.org/10.1007/s11745-017-4307-5

Klingel, SL, Roke, K, Hidalgo, B, Aslibekyan, S, Straka, RJ, An, P, Province, MA, Hopkins, PN, Arnett, DK, Ordovas, JM, Lai, CQ & Mutch, DM 2017, 'Sex Differences in Blood HDL-c, the Total Cholesterol/HDL-c Ratio, and Palmitoleic Acid are Not Associated with Variants in Common Candidate Genes', Lipids, vol. 52, no. 12, pp. 969-980. https://doi.org/10.1007/s11745-017-4307-5

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abstract = "Blood lipids are associated with cardiovascular disease (CVD) risk. Moreover, circulating lipid and fatty acid levels vary between men and women, and evidence demonstrates these traits may be influenced by single nucleotide polymorphisms (SNP). Sex-genotype interactions related to blood lipids and fatty acids have been poorly investigated and may help elucidate sex differences in CVD risk. The goal of this study was to investigate if the influence of SNPs previously associated with blood lipids and fatty acids varies in a sex-specific manner. Lipids and fatty acids were measured in serum and red blood cells (RBC), respectively, in 94 adults (18–30 years) from the GONE FISHIN{\textquoteright} cohort and 118 age-matched individuals from the GOLDN cohort. HDL-c levels were higher and the total cholesterol/HDL-c (TC/HDL-c) ratio was lower in women versus men (p < 0.01). RBC palmitoleic acid and the stearoyl-CoA desaturase index were both higher in women (p < 0.01). Fatty acid desaturase (FADS) pathway activity (estimated using the ratio of eicosapentaenoic acid/alpha-linolenic acid) was higher in men (p < 0.01). The AA genotype for rs1800775 in CETP had a lower TC/HDL-c ratio in men, but not women (pint = 0.03). Independent of sex, major alleles for rs174537 in FADS1 (GG) and rs3211956 in CD36 (TT) had higher arachidonic acid, lower dihomo-γ-linoleic acid, and a higher FADS1 activity compared to minor alleles. The current study showed that blood lipid and fatty acid levels vary between healthy young men and women, but that the observed sex differences are not associated with common variants in candidate lipid metabolism genes.",

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AU - Ordovas, Jose M.

AU - Lai, Chao Qiang

AU - Mutch, David M.

N1 - Funding Information: Acknowledgements This work was supported by Grant #030137 from the Ontario Ministry of Agriculture, Food and Rural Affairs (DMM), and by the U.S. Department of Agriculture—Agricultural Research Service, under Agreement no. 58-1950-4-003. Funding Information: This work was supported by Grant #030137 from the Ontario Ministry of Agriculture, Food and Rural Affairs (DMM), and by the U.S. Department of Agriculture?Agricultural Research Service, under Agreement no. 58-1950-4-003. Publisher Copyright: © 2017, AOCS.

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N2 - Blood lipids are associated with cardiovascular disease (CVD) risk. Moreover, circulating lipid and fatty acid levels vary between men and women, and evidence demonstrates these traits may be influenced by single nucleotide polymorphisms (SNP). Sex-genotype interactions related to blood lipids and fatty acids have been poorly investigated and may help elucidate sex differences in CVD risk. The goal of this study was to investigate if the influence of SNPs previously associated with blood lipids and fatty acids varies in a sex-specific manner. Lipids and fatty acids were measured in serum and red blood cells (RBC), respectively, in 94 adults (18–30 years) from the GONE FISHIN’ cohort and 118 age-matched individuals from the GOLDN cohort. HDL-c levels were higher and the total cholesterol/HDL-c (TC/HDL-c) ratio was lower in women versus men (p < 0.01). RBC palmitoleic acid and the stearoyl-CoA desaturase index were both higher in women (p < 0.01). Fatty acid desaturase (FADS) pathway activity (estimated using the ratio of eicosapentaenoic acid/alpha-linolenic acid) was higher in men (p < 0.01). The AA genotype for rs1800775 in CETP had a lower TC/HDL-c ratio in men, but not women (pint = 0.03). Independent of sex, major alleles for rs174537 in FADS1 (GG) and rs3211956 in CD36 (TT) had higher arachidonic acid, lower dihomo-γ-linoleic acid, and a higher FADS1 activity compared to minor alleles. The current study showed that blood lipid and fatty acid levels vary between healthy young men and women, but that the observed sex differences are not associated with common variants in candidate lipid metabolism genes.

AB - Blood lipids are associated with cardiovascular disease (CVD) risk. Moreover, circulating lipid and fatty acid levels vary between men and women, and evidence demonstrates these traits may be influenced by single nucleotide polymorphisms (SNP). Sex-genotype interactions related to blood lipids and fatty acids have been poorly investigated and may help elucidate sex differences in CVD risk. The goal of this study was to investigate if the influence of SNPs previously associated with blood lipids and fatty acids varies in a sex-specific manner. Lipids and fatty acids were measured in serum and red blood cells (RBC), respectively, in 94 adults (18–30 years) from the GONE FISHIN’ cohort and 118 age-matched individuals from the GOLDN cohort. HDL-c levels were higher and the total cholesterol/HDL-c (TC/HDL-c) ratio was lower in women versus men (p < 0.01). RBC palmitoleic acid and the stearoyl-CoA desaturase index were both higher in women (p < 0.01). Fatty acid desaturase (FADS) pathway activity (estimated using the ratio of eicosapentaenoic acid/alpha-linolenic acid) was higher in men (p < 0.01). The AA genotype for rs1800775 in CETP had a lower TC/HDL-c ratio in men, but not women (pint = 0.03). Independent of sex, major alleles for rs174537 in FADS1 (GG) and rs3211956 in CD36 (TT) had higher arachidonic acid, lower dihomo-γ-linoleic acid, and a higher FADS1 activity compared to minor alleles. The current study showed that blood lipid and fatty acid levels vary between healthy young men and women, but that the observed sex differences are not associated with common variants in candidate lipid metabolism genes.

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Sex Differences in Blood HDL-c, the Total Cholesterol/HDL-c Ratio, and Palmitoleic Acid are Not Associated with Variants in Common Candidate Genes

Abstract

Bibliographical note

Keywords

UN SDGs

Access

OpenUrl availability

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