Table 3. Serum levels of cholesterol and triglycerides in ApoB-containing, ApoA1-containing and total lipoprotein particles, as well as total serum nonesterified fatty acids (NEFA).

Serumlipids	Genotype	TK2+/+		TK2−/−
	Days of age	7	12	7	12
Cholesterol	ApoB-cont	1.05±0.10	1.12±0.05	1.31±0.17	1.32±0.05*
(mmol/l)	ApoA1-cont	1.92±0.04	2.39±0.02	2.03±0.09	2.58±0.04**
	Total	2.97±0.09	3.50±0.06	3.34±0.12*	3.90±0.06**
Triglycerides	ApoB-cont	0.84±0.02	0.69±0.09	0.89±0.04	0.83±0.11
(mmol/l)	ApoA1-cont	0.04±0.01	0.05±0.01	0.04±0.00	0.04±0.01
	Total	0.88±0.02	0.74±0.08	0.93±0.04	0.87±0.11
NEFA(mmol/l)	Total	0.79±0.10	0.60±0.02	0.91±0.08	0.76±0.02**

For each time point data from at least four different mice have been used (n≥4) and are presented as mean ± SEM. The P-value for statistical comparison (two-tailed unpaired Student’s t-test) between TK2^+/+ and TK2^−/− of the same age group is shown, *p≤0.05, **p≤0.01.