Mead acid (20:3n-9) and n-3 polyunsaturated fatty acids are not associated with risk of posterior longitudinal ligament ossification: Results of a case-control study. (May 2015)

• Record Type: Journal Article
• Authors: Hamazaki, Kei; Kawaguchi, Yoshiharu; Nakano, Masato; Yasuda, Taketoshi; Seki, Shoji; Hori, Takeshi; Hamazaki, Tomohito; Kimura, Tomoatsu
• Is Part Of: Prostaglandins, leukotrienes, and essential fatty acids. Volume 96(2015:May)
• Page Start: 31
• Page End: 36
• Publication Date: 2015-05
• Subjects: BMI body mass index -- CI confidence interval -- CT computed tomography -- EFA essential fatty acid -- ICO intraspinal canal ossification -- MA Mead acid -- OR odds ratio -- OPLL ossification of the posterior longitudinal ligament -- PGE2 prostaglandin E2 -- PUFA polyunsaturated fatty acid; Ossification of the posterior longitudinal ligament -- Case-control study -- Mead acid -- N-3 polyunsaturated fatty acids; Lipids -- Periodicals; Unsaturated fatty acids -- Periodicals; Prostaglandins -- Periodicals; Leukotrienes -- Periodicals; Fatty Acids, Unsaturated -- Periodicals; Acides gras insaturés -- Périodiques; Prostaglandines -- Périodiques; Leucotriènes -- Périodiques; Lipides -- Périodiques; 612.01577
• DOI: 10.1016/j.plefa.2015.01.003
• Languages: English
• ISSNs: 0952-3278

Abstract

Abstract: Ossification of the posterior longitudinal ligament (OPLL) involves the replacement of ligamentous tissue with ectopic bone. Although genetics and heritability appear to be involved in the development of OPLL, its pathogenesis remains to be elucidated. Given previous findings that 5, 8, 11-eicosatrienoic acid [20:3n-9, Mead acid (MA)] has depressive effects on osteoblastic activity and anti-angiogenic effects, and that n-3 polyunsaturated fatty acids (PUFAs) have a preventive effect on heterotopic ossification, we hypothesized that both fatty acids would be involved in OPLL development. To examine the biological significance of these and other fatty acids in OPLL, we conducted this case-control study involving 106 patients with cervical OPLL and 109 age matched controls. Fatty acid composition was determined from plasma samples by gas chromatography. Associations between fatty acid levels and incident OPLL were evaluated by logistic regression. Contrary to our expectations, we found no significant differences between patients and controls in the levels of MA or n-3 PUFAs (e.g., eicosapentaenoic acid and docosahexaenoic acid). Logistic regression analysis did not reveal any associations with OPLL risk for MA or n-3 PUFAs. In conclusion, no potential role was found for MA or n-3 PUFAs in ectopic bone formation in the spinal canal.