Serum cholinesterase isoenzymes and the WHHL rabbit: the relationship between the activity of cholinesterase not bound to low-density-lipoprotein and lipoprotein titer.
Serum cholinesterase has been previously shown to complex with beta-lipoprotein in the plasma. Since serum cholinesterase exists as isoenzymes in plasma, the relationship between the activity of these isoenzymes (unbound to beta-lipoprotein) and lipoprotein titer was investigated. The results indicated that the total of C2, C3, and C4 isoenzyme activities were expressed within a narrow range and independent of low density lipoprotein titer. These findings may indicate that unbound plasma cholinesterase may undergo autoregulation independent of cholinesterase bound to beta-lipoprotein.
Udom
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C
Indiana University School of Medicine, Indiana State University, Terre Haute, 47809.
Barnard
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D
Smith
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T
D000818:Animals; D002802:Cholinesterases / Q000097:blood*; D003720:Densitometry; D006949:Hyperlipidemias / Q000235:genetics* / Q000378:metabolism; D007527:Isoenzymes / Q000097:blood*; D008074:Lipoproteins / Q000097:blood*; D008077:Lipoproteins, LDL / Q000097:blood*; D011817:Rabbits
D007527:Isoenzymes; D008074:Lipoproteins; D008077:Lipoproteins, LDL; D002802:Cholinesterases