Effects of cyclic (nocturnal) total parenteral nutrition on circadian rhythms of blood lipids, lipoproteins and apolipoproteins in humans
1985
Matuchansky, Claude | Fabre, Jean | Guillard, Olivier | Morichau-Beauchant, Michel | Reinberg, Alain
Extract: The aim of the present study was to investigate the occurrence and characteristics (acrophase, amplitude) of circadian rhythms of serum total cholesterol, free-fatty acids (FFA), triglycerides, lipoproteins (HDL-, LDL-, and VLDL-cholesterol), apolipoproteins A and B, glucose and total proteins in hospitalized patients fed with 12 h nocturnal total parenteral nutrition (TPN) (from 8PM to 8AM) including lipids, patients fed with continuous enteral nutrition over 24 h daily spans, and patients eating 3 meals a day serving as controls. All the subjects were synchronized with diurnal activity and nocturnal rest in the hospital routine. The results showed the following: 1) circadian rhythms of total cholesterol, triglycerides, FFA, HDL-, LDL-cholesterol, apolipoprotein A and total proteins were detected in both TPN patients and controls, and rhythms of apolipoprotein B and glucose in TPN patients only; in enteral nutrition patients, rhythms were detected for total proteins, glucose and triglycerides only; 2) a significant shift in triglyceride and FFA acrophases was observed in TPN patients, as compared with controls; 3) 24 h mean of both triglyceride and cholesterol concentrations remained unchanged after one month, in both TPN and enteral nutrition patients. The present approach, by extending results of previous investigations, leads one to conclude that, on both a metabolic and a chronobiological basis, cyclic nocturnal TPN is well-tolerated. (author)
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