Title : Inhibition of apolipoprotein B net synthesis and secretion from cultured rat hepatocytes by the calcium-channel blocker diltiazem.

Pub. Date : 1989 Oct 15

PMID : 2597113






11 Functional Relationships(s)
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1 Inhibition of apolipoprotein B net synthesis and secretion from cultured rat hepatocytes by the calcium-channel blocker diltiazem. Diltiazem apolipoprotein B Rattus norvegicus
2 The effect of the Ca2+-channel blocker diltiazem on hepatic apolipoprotein B (apo B) synthesis and secretion was studied in 12-18 h cultures of collagenase-dispersed rat hepatocytes. Diltiazem apolipoprotein B Rattus norvegicus
3 The effect of the Ca2+-channel blocker diltiazem on hepatic apolipoprotein B (apo B) synthesis and secretion was studied in 12-18 h cultures of collagenase-dispersed rat hepatocytes. Diltiazem apolipoprotein B Rattus norvegicus
4 The presence of diltiazem in the medium decreased apo B secretion by hepatocytes in a concentration-dependent manner. Diltiazem apolipoprotein B Rattus norvegicus
5 At 25 microM, diltiazem inhibited apo B secretion by approx. Diltiazem apolipoprotein B Rattus norvegicus
6 The inhibition of apo B secretion by hepatocytes was significantly correlated with cell-associated diltiazem (r = 0.72, P less than 0.01). Diltiazem apolipoprotein B Rattus norvegicus
7 The rate of apo B secretion remained linear over 16 h even in the presence of 50 microM-diltiazem. Diltiazem apolipoprotein B Rattus norvegicus
8 At diltiazem concentrations in the medium which were inhibitory for apo B secretion, [14C]acetate incorporation into cellular lipids and [35S]methionine incorporation into protein were enhanced. Diltiazem apolipoprotein B Rattus norvegicus
9 Diltiazem inhibited the secretion of the apo B variants with a preferential inhibition of the higher-molecular-mass form of apo B (apo BH) over the lower-molecular-mass form (apo BL) at diltiazem concentrations in the medium greater than 25 microM. Diltiazem apolipoprotein B Rattus norvegicus
10 Diltiazem inhibited the secretion of the apo B variants with a preferential inhibition of the higher-molecular-mass form of apo B (apo BH) over the lower-molecular-mass form (apo BL) at diltiazem concentrations in the medium greater than 25 microM. Diltiazem apolipoprotein B Rattus norvegicus
11 Diltiazem inhibited the secretion of the apo B variants with a preferential inhibition of the higher-molecular-mass form of apo B (apo BH) over the lower-molecular-mass form (apo BL) at diltiazem concentrations in the medium greater than 25 microM. Diltiazem apolipoprotein B Rattus norvegicus