. | Liver . | . | Kidney . | . | Heart . | . | Brain . | . | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
. | Lizard . | Rat . | Lizard . | Rat . | Lizard . | Rat . | Lizard . | Rat . | ||||
14:0 | – | – | – | – | – | – | 2.0±0.2 | –‡ | ||||
16:0 | 16.1±1.3 | 20.3±1.0* | 20.1±0.4 | 29.3±1.4† | 11.6±0.3 | 18.4±0.4‡ | 34.7±0.1 | 34.9±1.1 | ||||
18:0 | 17.4±1.4 | 23.8±1.4* | 15.4±0.5 | 23.1±0.4† | 22.5±0.3 | 26.3±0.5‡ | 16.4±0.4 | 24.7±0.7‡ | ||||
16:1 n-7 | – | – | 1.7±0.2 | –* | – | – | 8.0±0.3 | –‡ | ||||
18:1 n-91 | 24.6±2.5 | 9.0±0.8† | 29.1±1.6 | 7.2±0.4† | 30.9±0.3 | 14.0±0.8‡ | 19.7±0.9 | 21.7±0.6 | ||||
18:2 n-6 | 38.1±1.9 | 13.6±0.5‡ | 27.0±2.4 | 8.4±0.1* | 25.6±0.2 | 13.1±0.8‡ | – | – | ||||
20:3 n-6 | – | 1.0±0.3* | – | – | – | – | – | – | ||||
20:4 n-6 | 3.1±0.2 | 28.0±0.7‡ | 5.7±1.0 | 31.7±0.5‡ | 9.3±0.7 | 19.7±0.8‡ | 14.1±0.8 | 8.6±0.3‡ | ||||
22:4 n-6 | – | – | – | – | – | – | 1.5±0.0 | 1.4±0.1 | ||||
22:5 n-31 | – | – | – | – | – | 1.9±0.1‡ | – | – | ||||
22:6 n-3 | – | 4.0±0.2‡ | – | – | – | 6.2±0.2‡ | 2.9±0.1 | 8.2±0.3‡ | ||||
ΣSFA | 33.5±0.8 | 44.1±0.5‡ | 35.5±0.2 | 52.4±1.0‡ | 34.1±0.5 | 44.7±0.5‡ | 53.1±0.6 | 59.6±0.4‡ | ||||
ΣMUFA | 25.0±2.7 | 9.0±0.8† | 31.6±1.5 | 7.2±0.4† | 30.9±0.3 | 14.2±0.9‡ | 27.7±1.1 | 21.9±0.5† | ||||
ΣPUFA | 41.5±1.9 | 46.9±0.5* | 32.9±1.4 | 40.4±0.6* | 34.9±0.6 | 41.1±0.7† | 19.2±0.6 | 18.5±0.3 | ||||
ΣPUFA n-3 | –‡ | 4.3±0.3 | – | 0.3±0.0‡ | – | 8.0±0.2‡ | 3.1±0.1 | 8.6±0.3‡ | ||||
ΣPUFA n-6 | 41.5±1.9 | 42.6±0.9 | 32.9±1.4 | 40.1±0.6* | 34.9±0.6 | 33.0±0.8 | 16.1±0.6 | 10.0±0.3‡ | ||||
n-3 % PUFA | – | 9.3±0.7‡ | –‡ | 0.8±0.1 | – | 19.6±0.7‡ | 16.2±0.9 | 46.2±1.4‡ | ||||
C20-22 | 3.3±0.3 | 33.4±0.3‡ | 6.7±1.1 | 32.0±0.5‡ | 9.3±0.7 | 28.0±0.9‡ | 18.6±0.7 | 18.5±0.3 | ||||
UI | 115±1.2‡ | 179±0.4 | 109±0.8 | 153±2.7‡ | 120±2.5 | 167±2.2‡ | 109±1.5 | 113±1.6 | ||||
UI (20:4) | 12.4±1.0 | 111.9±2.7‡ | 22.7±4.1 | 126.9±2.1‡ | 37.3±3.0 | 78.8±3.3‡ | 56.2±3.1 | 34.5±1.3‡ | ||||
UI (22:6) | 0.0±0.0 | 23.7±1.3‡ | 0.0±0.0 | 1.8±0.0‡ | 0.0±0.0 | 37.0±1.3‡ | 17.3±0.6 | 49.5±2.0‡ |
. | Liver . | . | Kidney . | . | Heart . | . | Brain . | . | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
. | Lizard . | Rat . | Lizard . | Rat . | Lizard . | Rat . | Lizard . | Rat . | ||||
14:0 | – | – | – | – | – | – | 2.0±0.2 | –‡ | ||||
16:0 | 16.1±1.3 | 20.3±1.0* | 20.1±0.4 | 29.3±1.4† | 11.6±0.3 | 18.4±0.4‡ | 34.7±0.1 | 34.9±1.1 | ||||
18:0 | 17.4±1.4 | 23.8±1.4* | 15.4±0.5 | 23.1±0.4† | 22.5±0.3 | 26.3±0.5‡ | 16.4±0.4 | 24.7±0.7‡ | ||||
16:1 n-7 | – | – | 1.7±0.2 | –* | – | – | 8.0±0.3 | –‡ | ||||
18:1 n-91 | 24.6±2.5 | 9.0±0.8† | 29.1±1.6 | 7.2±0.4† | 30.9±0.3 | 14.0±0.8‡ | 19.7±0.9 | 21.7±0.6 | ||||
18:2 n-6 | 38.1±1.9 | 13.6±0.5‡ | 27.0±2.4 | 8.4±0.1* | 25.6±0.2 | 13.1±0.8‡ | – | – | ||||
20:3 n-6 | – | 1.0±0.3* | – | – | – | – | – | – | ||||
20:4 n-6 | 3.1±0.2 | 28.0±0.7‡ | 5.7±1.0 | 31.7±0.5‡ | 9.3±0.7 | 19.7±0.8‡ | 14.1±0.8 | 8.6±0.3‡ | ||||
22:4 n-6 | – | – | – | – | – | – | 1.5±0.0 | 1.4±0.1 | ||||
22:5 n-31 | – | – | – | – | – | 1.9±0.1‡ | – | – | ||||
22:6 n-3 | – | 4.0±0.2‡ | – | – | – | 6.2±0.2‡ | 2.9±0.1 | 8.2±0.3‡ | ||||
ΣSFA | 33.5±0.8 | 44.1±0.5‡ | 35.5±0.2 | 52.4±1.0‡ | 34.1±0.5 | 44.7±0.5‡ | 53.1±0.6 | 59.6±0.4‡ | ||||
ΣMUFA | 25.0±2.7 | 9.0±0.8† | 31.6±1.5 | 7.2±0.4† | 30.9±0.3 | 14.2±0.9‡ | 27.7±1.1 | 21.9±0.5† | ||||
ΣPUFA | 41.5±1.9 | 46.9±0.5* | 32.9±1.4 | 40.4±0.6* | 34.9±0.6 | 41.1±0.7† | 19.2±0.6 | 18.5±0.3 | ||||
ΣPUFA n-3 | –‡ | 4.3±0.3 | – | 0.3±0.0‡ | – | 8.0±0.2‡ | 3.1±0.1 | 8.6±0.3‡ | ||||
ΣPUFA n-6 | 41.5±1.9 | 42.6±0.9 | 32.9±1.4 | 40.1±0.6* | 34.9±0.6 | 33.0±0.8 | 16.1±0.6 | 10.0±0.3‡ | ||||
n-3 % PUFA | – | 9.3±0.7‡ | –‡ | 0.8±0.1 | – | 19.6±0.7‡ | 16.2±0.9 | 46.2±1.4‡ | ||||
C20-22 | 3.3±0.3 | 33.4±0.3‡ | 6.7±1.1 | 32.0±0.5‡ | 9.3±0.7 | 28.0±0.9‡ | 18.6±0.7 | 18.5±0.3 | ||||
UI | 115±1.2‡ | 179±0.4 | 109±0.8 | 153±2.7‡ | 120±2.5 | 167±2.2‡ | 109±1.5 | 113±1.6 | ||||
UI (20:4) | 12.4±1.0 | 111.9±2.7‡ | 22.7±4.1 | 126.9±2.1‡ | 37.3±3.0 | 78.8±3.3‡ | 56.2±3.1 | 34.5±1.3‡ | ||||
UI (22:6) | 0.0±0.0 | 23.7±1.3‡ | 0.0±0.0 | 1.8±0.0‡ | 0.0±0.0 | 37.0±1.3‡ | 17.3±0.6 | 49.5±2.0‡ |
FA, fatty acid; ΣSFA, total saturated fatty acids; ΣMUFA, total monounsaturated fatty acids; ΣPUFA, total polyunsaturated fatty acids;UI, unsaturation index being the number of double bonds per 100 fatty acid molecules. Fatty acids either not detected or less than 1% of total FA detected in any tissue are not listed but have been included in all calculations
Values are mean % ± s.e.m. (N=4). Superscripts indicate significant difference from the corresponding rat tissue; *P<0.05, †P<0.005, ‡P<0.001
1Since MS cannot readily determine the position of bonds in isobaric species and therefore double isomers may be present and cannot be distinguished by the MS method used, the omega designation of molecules is based on the dominant isomers previously identified using GC (for example,18:1 can exist as 18:1 n-9 or as 18:1 n-7)