scholarly journals A comparison of molecular properties of hepatic triglyceride lipase and lipoprotein lipase from human post-heparin plasma.

1978 ◽  
Vol 253 (9) ◽  
pp. 2912-2920 ◽  
Author(s):  
J. Augustin ◽  
H. Freeze ◽  
P. Tejada ◽  
W.V. Brown
2018 ◽  
Vol 487 ◽  
pp. 54-59 ◽  
Author(s):  
Kiyomi Nakajima ◽  
Tetsuo Machida ◽  
Shigeyuki Imamura ◽  
Daisuke Kawase ◽  
Kazuya Miyashita ◽  
...  

1984 ◽  
Vol 30 (5) ◽  
pp. 748-751 ◽  
Author(s):  
S Nozaki ◽  
M Kubo ◽  
Y Matsuzawa ◽  
S Tarui

Abstract In this method for measuring lipoprotein lipase (LPL) and hepatic triglyceride lipase (H-TGL) in post-heparin plasma, we determine the released free fatty acids enzymically. After release, they are extracted by Dole 's method (J. Biol. Chem. 235: 2595-2599, 1960), solubilized with Triton X-100, then measured with an enzymic kit (NEFA Kit-K; Nippon Shoji Kaisha Ltd.) after residual turbidity is removed by centrifugation with chloroform. A 5-microL sample of post-heparin plasma suffices to measure the activity of LPL and H-TGL; thus the method is as sensitive as the radioisotopic method. Selective assay of LPL and H-TGL, by adding sodium dodecyl sulfate to inactivate H-TGL or NaCl to inactivate LPL, is also feasible. The mean activities +/- SD of LPL and H-TGL in plasma of normal healthy men were respectively 9.4 +/- 2.3 mumol/h per milliliter (157 +/- 38 U/L) and 20.1 +/- 10.4 (335 +/- 173 U) mumol/h per milliliter (U/L).


Author(s):  
D. Blache ◽  
D. Bouthillier ◽  
A. Barbeau ◽  
J. Davignon

SUMMARY:Plasma triglycerides although within the normal range have been shown to be higher in Friedreich’s ataxia than in control subjects. To determine whether this difference could be ascribed to a reduced catabolism of triglyceride-rich lipoproteins, the activities of lipoprotein lipase (LPL) and hepatic triglyceride lipase (HL), released into plasma after an heparin injection, were measured in 13 cases of Friedreich’s ataxia and 14 control subjects of comparable signs. LPL was found to be significantly lower in the ataxic patients. Moreover about half of the cases clustered below the normal range for both lipase activities. This subgroup of Friedreich’s patients had significantly higher plasma triglycerides than those with normal lipase activities. Further studies are needed to relate these findings to other characteristics of the disease.


Sign in / Sign up

Export Citation Format

Share Document