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Pantothenic acid and its derivatives protect Ehrlich ascites tumor cells against lipid peroxidation.

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Protective effect of pantothenic acid and related compounds against permeabilization of Ehrlich ascites tumour cells by digitonin.

It is proposed that increased resistance to the damaging effect of submillimolar concentrations of digitonin is due to the increased rate of cholesterol biosynthesis, and incorporation of [14C]acetate into cholesterol is increased in the cells preincubated with pantothenic acid.
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Nonenzymatically evoked and cytochrome P450‐dependent lipid peroxidation inhibits synthesis of phosphatidylethanolamine via the ethanolamine base exchange reaction in rat liver microsomes

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Inhibition by glucose and deoxyglucose of phosphatidylserine synthesis in Ehrlich ascites tumor cells: a possible relation to the Crabtree effect and depletion of endoplasmic reticulum Ca2+ stores.

Incorporation of [14C]serine into phosphatidylserine by the base exchange reaction in Ehrlich ascites tumor cells is inhibited by 30% by glucose and by 60% by 2-deoxyglucose, which is interpreted as being due to depletion of calcium stores in the endoplasmic reticulum.
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Membrane integrity and phospholipid movement influence the base exchange reaction in rat liver microsomesý

It can be suggested that -SH groups located within the hydrophobic core of the enzymes molecules are essential for the recognition of membrane substrates, since the influence of the -SH group modifying reagents on the protein-facilitated phospholipid motion across endoplasmic reticulum membranes can not be excluded.
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A fusogenic protein from rat brain microsomal membranes: Partial purification and reconstitution into liposomes

Data show that protein inserted into membrane has its oligosaccharide chains exposed to the environment, indicating a glycoprotein nature of the fusogenic protein.
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Serine base-exchange in rat liver microsomes: effect of phospholipids.

The authors enriched liver microsomes in lipid classes and molecular species disrupting membranes with octyl glucoside and reassembling them by detergent removal with phosphatidylethanolamine, finding that the degree of incorporation depended on the unsaturation of fatty acyl-chains.
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Estimating vitamin D activity by measuring the width of epiphyseal cartilage.

Effect of Neoniycin on Cholesterol Atherosclerosis in the Rabbit. (25696)

Evidence that protamine combines with factors, presumably “free” or “combined” RNA, concerned with maintenance olf ATP levels rather than with ATP per se was found by activity of ATP in an in vitro enzyme system that requires ATP.

RFC-polar and RFC-complete cells in different phases of the primary immunologic response.

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