Clinical Study

Content of Trans Fatty Acids in Human Cheek Epithelium: Comparison with Serum and Adipose Tissue

Table 2

Distribution of fatty acids (median (interquartile range)) in cheek epithelium, adipose tissue, and serum.

Fatty acidCheek epithelium Adipose tissue Serum

C12:0 0.47 (0.23, 0.77)0.44 (0.33, 0.64)0.29 (0.11, 0.49)
C14:0 3.2 (2.6, 3.63)4.05 (3.38, 5.43)1.76 (1.36, 2.69)
C15:0 0.39 (0.26, 0.59)0.35 (0.15, 0.51)0.25 (0.17, 0.31)
C16:0 37.25 (30.87, 42.44)36.28 (29.58, 44.04)32.19 (28.14, 36.65)
C18:0 20.78 (14.44, 28.06)4.37 (2.5, 10.86)11.9 (8.06, 16.96)
TSFA62.02 (51.35, 74.49)46.64 (39.47, 61.28)47.21 (38.06, 57.64)
C14:10.38 (0.21, 0.86)0.4 (0.19, 0.88)0.19 (0.11, 0.44)
C16:11.52 (0.64, 2.33)0.45 (0.18, 2.81)2.17 (1.21, 2.96)
C18:119.95 (8.82, 27.2)17.18 (9.87, 29.84)21.03 (13.68, 24.21)
TMUFA21.44 (11.53, 29.46)21.95 (13.71, 32.39)23.25 (13.98, 26.89)
C16:1t 0.67 (0.27, 1.31)1.04 (0.3, 4.12)0.25 (0.16, 0.59)
C18:1t3.34 (1.61, 4.12)1.45 (0.62, 2.41)1.88 (1.17, 2.24)
C18:2t 0.65 (0.16, 1.42)0.2 (0.05, 0.48)0.14 (0.07, 0.39)
C18:3t1.24 (0.88, 2.66)1.71 (1.06, 2.52)1.81 (1.08, 2.55)
TTFA3.10 (1.66, 5.58)3.55 (1.93, 6.73)2.69 (1.79, 3.58)
C18:2 5.07 (2.4, 10.39)17.66 (12.82, 21.46)19.93 (14.62, 25.04)
C18:3n3 0.33 (0.17, 0.82)0.23 (0.1, 0.48)0.37 (0.2, 0.58)
C18:3n6 0.98 (0.41, 3.3)1.29 (0.53, 2.48)0.54 (0.16, 1.39)
TPUFA 8.07 (6.11, 11.44)20.07 (13.95, 23.71)21.16 (16.19, 26.42)
C20:4 2.44 (0.82, 3.54)1.03 (0.36, 3.17)5.27 (4.18, 6.32)
C20:5 0.33 (0.12, 1.37)0.1 (0.05, 0.17)0.45 (0.21, 0.88)
C22:6 0.63 (0.25, 0.92)0.07 (0.05, 0.14)0.68 (0.44,0.93)
TLCFA 3.04 (1.92, 4.34)1.21 (0.43, 3.35)5.75 (4.68, 7.31)

Fatty acid are expressed as % of total fatty acid.
TSFA: total saturated fatty acid; TMUFA: total monounsaturated fatty acid; TTFA: total trans fatty acid; TPUFA: total polyunsaturated fatty acid; TLCFA: total long chain fatty acid.