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Table 3.

Cholesterol and phospholipid content of microsomal membranes from the brain of mammals and birds

Cholesterol (μg mg-1 protein)Phospholipid (μg mg-1 protein)Cholesterol:phospholipid(mol:mol)*
Mammals    
   Mouse (4) 72.9±3.4 271±25 0.55±0.05 
   Rat (3) 93.0±9.3 405±27 0.47±0.06 
   Sheep (4) 102±7.1 388±26 0.53±0.03 
   Pig (4) 107±5.8 575±51 0.38±0.02 
   Cow (4) 91.0±2.5 470±16 0.39±0.01 
Birds    
   Zebra finch (3) 84.4±10.7 227±42 0.78±0.14 
   Sparrow (4) 87.4±3.8 167±8 1.06±0.05 
   Starling (4) 102±6.7 264±32 0.80±0.08 
   Currawong (4) 96.4±4.5 310±17 0.63±0.04 
   Pigeon (4) 95.2±7.8 234±39 0.86±0.09 
   Duck (4) 92.8±2.8 238±3 0.79±0.03 
   Goose (4) 84.8±2.8 210±23 0.85±0.10 
   Emu (4) 83.3±5.3 281±62 0.65±0.08 
Cholesterol (μg mg-1 protein)Phospholipid (μg mg-1 protein)Cholesterol:phospholipid(mol:mol)*
Mammals    
   Mouse (4) 72.9±3.4 271±25 0.55±0.05 
   Rat (3) 93.0±9.3 405±27 0.47±0.06 
   Sheep (4) 102±7.1 388±26 0.53±0.03 
   Pig (4) 107±5.8 575±51 0.38±0.02 
   Cow (4) 91.0±2.5 470±16 0.39±0.01 
Birds    
   Zebra finch (3) 84.4±10.7 227±42 0.78±0.14 
   Sparrow (4) 87.4±3.8 167±8 1.06±0.05 
   Starling (4) 102±6.7 264±32 0.80±0.08 
   Currawong (4) 96.4±4.5 310±17 0.63±0.04 
   Pigeon (4) 95.2±7.8 234±39 0.86±0.09 
   Duck (4) 92.8±2.8 238±3 0.79±0.03 
   Goose (4) 84.8±2.8 210±23 0.85±0.10 
   Emu (4) 83.3±5.3 281±62 0.65±0.08 

Values are means ± s.e.m. Number of preparations used for each measurement in parentheses.

*

Moles of phospholipid calculated assuming a molecular weight of 780

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