Genetic Variants of the Fatty Acid Desaturase Gene Cluster Are Associated with Plasma LDL Cholesterol Levels in Japanese Males
| Autor: | Kazuo Kondo, Yutaka Morita, Yuzuru Otsuka, Ikuyo Ichi, Toshimi Kido, Shigenobu Egawa, Kazuo Kawahara, Tomomi Ainuki, Yasuko Sone, Satoru Kodama, Hirohito Sone, Mariko Sonoda, Yoko Fujiwara |
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| Rok vydání: | 2013 |
| Předmět: |
Adult
Fatty Acid Desaturases Male medicine.medical_specialty Erythrocytes Genotype Medicine (miscellaneous) Single-nucleotide polymorphism Polymorphism Single Nucleotide Asian People Japan Internal medicine Genetic variation medicine Genetic predisposition Humans Allele Alleles chemistry.chemical_classification Arachidonic Acid Nutrition and Dietetics medicine.diagnostic_test biology Fatty Acids Homozygote Fatty acid Cholesterol LDL Middle Aged Endocrinology Fatty acid desaturase chemistry Biochemistry Multigene Family biology.protein Lipid profile |
| Zdroj: | Journal of Nutritional Science and Vitaminology. 59:325-335 |
| ISSN: | 1881-7742 0301-4800 |
| Popis: | Fatty acid (FA) compositions in tissues are related to metabolic disorders, and consequently the appropriate management of underlying FA compositions in tissues is considered to be important. However, the relationship among the serum lipid profiles, the FA composition of the red blood cell (RBC) membranes and genetic variations in the fatty acid desaturase (FADS) genes in Japanese men is unclear. In this study, the subjects recruited were 137 Japanese men, 40 to 60 y old, who had a regular health checkup. Their serum lipid profile and the relative FA composition of the RBC membranes were measured. They were genotyped for the single nucleotide polymorphisms (SNPs) rs174553, rs174546, rs99780 and rs174583 in FADS gene. Multiple regression analysis was conducted to detect the relationship among hyperlipidemia, the FA composition of the RBC and the FADS genotypes. As a result, the homozygous genotype for the minor alleles in rs174553, rs174546, rs99780 were found to be associated with lower low-density lipoprotein cholesterol (LDL-C) levels and a lower LDL-C/total-cholesterol ratio. The homozygous genotype for the minor alleles reduced the risk of high LDL-C level (R2=0.50, β=-0.20, p=0.009), whereas, the arachidonic acid (AA) levels in the carriers of the homozygous genotype for the minor alleles tended to be lower compared with the carriers of the major alleles. However, no significant differences were observed in any FA level among the three genotypes for four SNPs. These results indicate that the appropriate management of serum LDL-C levels depending on genetic predisposition in FADS genotypes should be encouraged. |
| Databáze: | OpenAIRE |
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