Table 4.

Incorporation coefficients $k_{i\left(\mathit{DHA}\right)}^{\ast }$ and incorporation rates (J_{in, i(DHA)}) of plasma DHA into brain lipids in unanesthetized rats on n-6 PUFA adequate or deficient diets

	Radioactivity (nCi/g brain)		Incorporation coefficient, ki* (ml/sec/g ×10-4)		Incorporation rate, Jin, i (nmol/sec/g × 10-4)
	Adequate	Deficient	Adequate	Deficient	Adequate	Deficient
Total lipids	45.1 ± 5.5	44.5 ± 12.6	2.2 ± 0.3	2.2 ± 0.3
Aqueous phase	6.6 ± 1.2	6.9 ± 1.6
Total phospholipids	36.3 ± 5.0	34.6 ± 9.7	1.8 ± 0.3	1.7 ± 0.2	25.1 ± 6.8	36.4 ± 10.5 *
EtnGpl	21.7 ± 3.2	19.8 ± 5.4	1.0 ± 0.2	0.99 ± 0.12	15.0 ± 4.0	20.9 ± 6.1 *
PtdIns	10.7 ± 1.4	12.1 ± 2.9	0.52 ± 0.05	0.61 ± 0.07**	7.5 ± 2.5	12.7 ± 3.4 **
PtdSer	3.2 ± 0.3	4.0 ± 1.1	0.15 ± 0.02	0.20 ± 0.03**	2.3 ± 0.8	4.2 ± 1.2 **
ChoGpl	15.3 ± 3.3	14.7 ± 4.5	0.74 ± 0.19	0.73 ± 0.11	10.4 ± 2.8	15.5 ± 5.0 *
Neutral lipids
Triacylglycerol	4.5 ± 0.5	5.1 ± 1.8	0.22 ± 0.03	0.25 ± 0.05	3.1 ± 0.8	5.4 ± 2.1 *
Cholesterol	3.6 ± 0.3	4.0 ± 1.0	0.18 ± 0.02	0.20 ± 0.03
Cholesteryl ester	0.69 ± 0.10	0.81 ± 0.24	0.034 ± 0.005	0.041 ± 0.008*

Values are mean ± SD (n = 8 for both groups).

^*p < 0.05,

^**p < 0.01, differs significantly from mean in adequate group