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. 2021 Mar 1;43(4):1783–1798. doi: 10.1007/s11357-021-00342-0

Table 2.

Mean values ± SEM of main plasma FA, expressed as mol% respect to the total FAs, in octogenarians (> 80 years) from an area of Sardinia that possesses a strikingly high number of long-living people (Old-HLZ), subjects (65–70 years) from the same zone (Young-HLZ) and octogenarians (> 80 years) from a different area with a distinctly lower level of longevity (Old-LLZ). To assess the statistical significance amongst groups, we performed the Kruskal-Wallis test (one-way ANOVA on ranks) followed by Dunn’s correction for multiple comparisons. Different letters indicate significant differences amongst groups (p≤0.05). (FA, fatty acid; PA, palmitic acid; SA stearic acid; POA, palmitoleic acid; OA, oleic acid; ALA, alpha-linolenic acid; EPA, eicosapentaenoic acid; DHA, docosahexaenoic acid; LA, linoleic acid; GLA, gamma-linolenic acid; ARA, arachidonic acid; CLA, conjugated linoleic acid; SFA, saturated fatty acid; MUFA, monounsaturated fatty acid; PUFA, polyunsaturated acid)

mol% of total plasma fatty acid
Old-HLZ Old-LLZ Young-HLZ
Mean SEM Mean SEM Mean SEM
14:0 1.36 0.07a 1.74 0.17a 1.64 0.14a
15:0 0.42 0.05a 0.29 0.02a 0.64 0.04b
16:0 (PA) 28.72 0.37a 28.87 0.71a 30.40 0.74a
17:0 2.47 0.16a 1.55 0.08b 1.55 0.10b
18:0 (SA) 7.09 0.17a 6.87 0.18a 9.22 0.27b
16:1 (POA) 4.67 0.23a,b 3.76 0.35a 5.25 0.39b
18:1 (OA) 22.56 0.55a 23.71 1.53a 21.15 0.83a
18:3n3 (ALA) 0.27 0.01a 0.34 0.02b 0.32 0.03a,b
20:5n3 (EPA) 0.71 0.09a 0.48 0.05a 0.44 0.05a
22:6n3 (DHA) 1.29 0.06a 1.46 0.11a 1.47 0.13a
18:2n6 (LA) 21.21 0.55a 24.18 0.99a 18.23 0.68b
18:3n6 (GLA) 0.49 0.02a 0.63 0.05b 0.40 0.03a
20:4n6 (ARA) 6.27 0.27a 7.16 0.67a 6.35 0.32a
22:4n6 0.11 0.01a 0.11 0.01a 0.15 0.01b
CLA 0.25 0.02a 0.18 0.02b 0.12 0.01c
Total SFA 39.06 1.05a 37.43 2.01a 43.44 0.87b
Total MUFA 27.26 0.51a 27.31 1.37a 26.49 0.84a
Total PUFA 33.70 0.79a,b 36.97 1.68a 30.07 1.11b
N of subjects 42 22 21