QUANTITATIVE RELATIONS OF BLOOD LIPIDS 



379 



Table 2 

 The Normal Range of Lipids in Human Blood" 



Blood 



Constituent fraction Range* 



Total lipids Plasma 360-820 



Fats Serum 150-250 



Fatty acids Serum 200 



Phospholipids Serum 135-170 



Lipid P Serum 8-10 



Cholesterol esteis Serum 150-193 



Cholesterol 



As ester Serum 90-114 



Free Serum 60-70 



Carotenoids Serum 6-312 /tg./100 ml. 



Vitamin A Serum 35-40 I.U./100 ml. 



a-Tocopherol (Vitamin E) Serum 0.6-1.6 



° Data adapted from E. S. West and W. R. Todd, Textbook of Biochemistry, Macmillan 

 New York, 1951, pp. 544, 545. 



6 Expressed as mg./lOO ml. unless otherwise designated. 



Table 3 

 The Mean Values of the Blood Plasma Lipids of Normal Women Under Con- 

 trolled Conditions of Diet, Exercise, and Rest" 



Plasma lipid component 



Total lipid 



Neutral fat 



Total fatty acid 



Phospholipid fatty acid 



Cholesterol ester fatty acid . 



Neutral fat fatty acid 



Total cholesterol 



Combined cholesterol 



Free cholesterol 



Phospholipid 



Total lipid (excluding duplication). 



589 



° Adapted from E. M. Boyd, /. Biol. Chem. 

 h Included in phospholipid figure. 

 'Included in neutral fat figure. 



101, 323-336(1933). 



the unsaturated fatty acid content of the blood serum of normal children 

 and adults are given in Table 4. 



