TY - JOUR
T1 - Normalization of composition of triglyceride-rich lipoprotein subfractions in diabetic subjects during insulin infusion with programmable implantable medication system
AU - Georgopoulos, Angeliki
AU - Saudek, Christopher D.
PY - 1992/1
Y1 - 1992/1
N2 - OBJECTIVE - To investigate whether long-term improved glycemic control by intraperitoneal insulin infusion normalizes the compositional abnormalities of triglyceride (TG)-rich lipoproteins in insulin-dependent diabetes mellitus (IDDM). RESEARCH DESIGN AND METHODS - Seven subjects were studied before and 12-14 mo after initiation of treatment with the programmable implantable medication system (PIMS). Plasma TG levels were measured, and the composition of three TG-rich lipoprotein subfractions (Svedberg flotation [Sf] >400, 100-400, and 20-100) were analyzed before and every 1.5 h for 7.5 h after ingestion of com oil. RESULTS - PIMS significantly improved glycemic control, as measured by mean blood glucose (P < 0.02), and HbA1 (P < 0.001, paired t test) levels. Weight loss was also observed during PIMS treatment. Significant changes occurred in the composition of TG-rich lipoprotein subfractions during PIMS treatment in both the fasting (P < 0.002) and the postprandial (P < 0.0001) state. Most changes were in the direction of nondiabetic values. PIMS treatment reduced the total cholesterol enrichment in IDDM subjects in all three subfractions in the postprandial state and the very-low-density lipoprotein subfractions (Sf 100-400 and 20-100) in the fasting state. Multivariate analysis showed that the compositional changes were affected by improved glycemic control, as assessed by both mean blood glucose and HbA1, whereas the very-low-density lipoprotein compositional changes were affected by both the improved glycemic control and body weight. CONCLUSIONS - In IDDM subjects during PIMS treatment, there was normalization of most abnormalities in the composition of fasting and postprandial TG-rich lipoproteins, including enrichment in total cholesterol, which is considered atherogenic.
AB - OBJECTIVE - To investigate whether long-term improved glycemic control by intraperitoneal insulin infusion normalizes the compositional abnormalities of triglyceride (TG)-rich lipoproteins in insulin-dependent diabetes mellitus (IDDM). RESEARCH DESIGN AND METHODS - Seven subjects were studied before and 12-14 mo after initiation of treatment with the programmable implantable medication system (PIMS). Plasma TG levels were measured, and the composition of three TG-rich lipoprotein subfractions (Svedberg flotation [Sf] >400, 100-400, and 20-100) were analyzed before and every 1.5 h for 7.5 h after ingestion of com oil. RESULTS - PIMS significantly improved glycemic control, as measured by mean blood glucose (P < 0.02), and HbA1 (P < 0.001, paired t test) levels. Weight loss was also observed during PIMS treatment. Significant changes occurred in the composition of TG-rich lipoprotein subfractions during PIMS treatment in both the fasting (P < 0.002) and the postprandial (P < 0.0001) state. Most changes were in the direction of nondiabetic values. PIMS treatment reduced the total cholesterol enrichment in IDDM subjects in all three subfractions in the postprandial state and the very-low-density lipoprotein subfractions (Sf 100-400 and 20-100) in the fasting state. Multivariate analysis showed that the compositional changes were affected by improved glycemic control, as assessed by both mean blood glucose and HbA1, whereas the very-low-density lipoprotein compositional changes were affected by both the improved glycemic control and body weight. CONCLUSIONS - In IDDM subjects during PIMS treatment, there was normalization of most abnormalities in the composition of fasting and postprandial TG-rich lipoproteins, including enrichment in total cholesterol, which is considered atherogenic.
UR - http://www.scopus.com/inward/record.url?scp=0026530754&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0026530754&partnerID=8YFLogxK
M3 - Article
C2 - 1737538
AN - SCOPUS:0026530754
SN - 0149-5992
VL - 15
SP - 19
EP - 26
JO - Diabetes care
JF - Diabetes care
IS - 1
ER -