TABLE 1.
Concentrations of cholesterol (esterified plus unesterified), triglyceride, and protein in plasma lipoproteins from three different speciesa
| Lipid or protein and plasma type | Concn (mg/dl) in:
|
Total lipoprotein concn (mg/dl) | ||
|---|---|---|---|---|
| TRLb | LDL | HDL | ||
| Cholesterol (esterified + unesterified) | ||||
| Human | 30.4 ± 3.7 | 50.5 ± 3.7 | 28.7 ± 3.2 | 109.7 ± 6.7 |
| Dog | 4.4 ± 1.4c | 35.8 ± 6.3c | 164.9 ± 20.9c | 205.1 ± 17.3c |
| Rat | 11.7 ± 1.3c,d | 21.1 ± 5.8c | 45.3 ± 7.4c,d | 78.2 ± 4.2c,d |
| Triglyceride | ||||
| Human | 30.3 ± 2.3 | 20.0 ± 1.6 | 29.4 ± 8.5 | 79.8 ± 10.6 |
| Dog | 13.5 ± 3.6c | 18.9 ± 6.9 | 26.1 ± 8.8 | 58.5 ± 17.8 |
| Rat | 27.7 ± 2.3d | 7.2 ± 1.1c,d | 20.2 ± 2.1 | 55.1 ± 1.7c |
| Protein | ||||
| Human | 9.5 ± 3.2 | 35.4 ± 4.0 | 350.6 ± 111.3 | 4,245.6 ± 314.3 |
| Dog | 3.5 ± 2.2c | 40.4 ± 15.6 | 729.0 ± 76.7c | 4,855.5 ± 241.5 |
| Rat | 4.6 ± 1.1c | 19.2 ± 10.8 | 106.0 ± 7.1c,d | 4,940.8 ± 203.2 |
a
Data are expressed as means ± standard deviations (n = 11 for human and dog plasma; n = 6 for rat plasma).
b
TRL include VLDL and chylomicrons.
c
P < 0.05 compared to value for human plasma.
d
P < 0.05 compared to value for dog plasma.