caa a22 4500 475771028 CHVBK 20180406123617.0 cr unu---uuuuu 170329e20000101xx s 000 0 eng 10.1007/s001250050004 doi (NATIONALLICENCE)springer-10.1007/s001250050004 Significant improvement of apolipoprotein B-containing lipoprotein metabolism by insulin treatment in patients with non-insulin-dependent diabetes mellitus [Elektronische Daten] [L. Duvillard, F. Pont, E. Florentin, P. Gambert, B. Vergès] Aims/hypothesis. Patients with Type II (non-insulin-dependent) diabetes mellitus have multiple abnormalities in apolipoprotein B (apoB)-containing lipoprotein metabolism. These abnormalities are likely to play an important part in the development of premature atherogenesis in these patients. This stable isotope kinetic experiment was designed to study the effect of insulin therapy on apoB metabolism in poorly controlled Type II diabetic patients.¶Methods. Using L-[1-13C] leucine, we studied apoB metabolism in five control subjects without insulin resistance and in six poorly controlled Type II diabetic patients before and 2 months after the introduction of insulin therapy.¶Results. Insulin treatment induced a decrease of very low density lipoprotein apoB plasma concentration [121 ± 42 vs 158 ± 91 mg · l− 1, p < 0.05 (control subjects: 48 ± 20)], related to an increased catabolism of very low density lipoprotein towards intermediate density lipoprotein or low density lipoprotein [0.20 ± 0.08 vs 0.14 ± 0.07 pool · h− 1, p < 0.05 (control subjects: 0.36 ± 0.10)]. On the other hand, insulin treatment induced an acceleration of intermediate density lipoprotein apoB turn-over without changing its plasma concentration [77 ± 39 vs 61 ± 18 mg · l− 1, (control subjects: 17 ± 3)], by increasing both its production rate [22.6 ± 9.2 vs 18.2 ± 9.6 mg · l− 1· h− 1, p < 0.05 (control subjects: 18.4 ± 3.2)] and its catabolic rate towards low density lipoprotein [0.34 ± 0.22 vs 0.22 ± 0.16 pool · h− 1, p < 0.05 (control subjects: 1.02 ± 0.13)]. Likewise, insulin treatment increased low density lipoprotein apoB production rate [20.2 ± 7.4 vs 16.9 ± 7.7 mg · l− 1· h− 1, p < 0.05 (control subjects: 16.9 ± 2.3)] and restored a normal low density lipoprotein apoB fractional catabolic rate [0.022 ± 0.004 vs 0.018 ± 0.004 pool · h− 1, p < 0.05 (control subjects: 0.025 ± 0.004)], resulting in a constant low density lipoprotein apoB plasma concentration [965 ± 485 vs 984 ± 558 mg · l− 1 (control subjects: 699 ± 106)].¶Conclusion/interpretation. Insulin treatment in Type II diabetes induces profound metabolic modifications of lipoprotein, resulting in significant decrease of the intravascular residence time of very low density lipoprotein, intermediate density lipoprotein and low density lipoprotein particles. This is likely to make these particles less harmful. [Diabetologia (2000) 43: 27-35] Springer-Verlag Berlin Heidelberg, 2000 Keywords Non-insulin-dependent diabetes mellitus, insulin, apolipoprotein B, stable isotope, kinetic study, leucine nationallicence Duvillard L. INSERM U 498, Metabolism of human lipoproteins and vascular interactions, Faculty of Medicine, 21033 Dijon, France, FR aut Pont F. INSERM U 498, Metabolism of human lipoproteins and vascular interactions, Faculty of Medicine, 21033 Dijon, France, FR aut Florentin E. INSERM U 498, Metabolism of human lipoproteins and vascular interactions, Faculty of Medicine, 21033 Dijon, France, FR aut Gambert P. INSERM U 498, Metabolism of human lipoproteins and vascular interactions, Faculty of Medicine, 21033 Dijon, France, FR aut Vergès B. INSERM U 498, Metabolism of human lipoproteins and vascular interactions, Faculty of Medicine, 21033 Dijon, France, FR aut https://doi.org/10.1007/s001250050004 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s001250050004 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Duvillard L. INSERM U 498, Metabolism of human lipoproteins and vascular interactions, Faculty of Medicine, 21033 Dijon, France, FR aut NATIONALLICENCE 700 1- Pont F. INSERM U 498, Metabolism of human lipoproteins and vascular interactions, Faculty of Medicine, 21033 Dijon, France, FR aut NATIONALLICENCE 700 1- Florentin E. INSERM U 498, Metabolism of human lipoproteins and vascular interactions, Faculty of Medicine, 21033 Dijon, France, FR aut NATIONALLICENCE 700 1- Gambert P. INSERM U 498, Metabolism of human lipoproteins and vascular interactions, Faculty of Medicine, 21033 Dijon, France, FR aut NATIONALLICENCE 700 1- Vergès B. INSERM U 498, Metabolism of human lipoproteins and vascular interactions, Faculty of Medicine, 21033 Dijon, France, FR aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer