TY - JOUR
T1 - Egg consumption and insulin metabolism in the Insulin Resistance Atherosclerosis Study (IRAS)
AU - Lee, Chee Tin Christine
AU - Liese, Angela D.
AU - Lorenzo, Carlos
AU - Wagenknecht, Lynne E.
AU - Haffner, Steven M.
AU - Rewers, Marian J.
AU - Hanley, Anthony J.
N1 - Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 2014/7
Y1 - 2014/7
N2 - Objective To examine the association between egg consumption and measures of insulin sensitivity (SI), acute insulin response (AIR) and metabolic clearance rate of insulin (MCRI). Design Cross-sectional analysis. Settings Egg consumption, categorized as <1/week, 1 to <3/week, 3 to <5/week and ≥5/week, was measured using a validated FFQ. SI, AIR and MCRI were determined from frequently sampled intravenous glucose tolerance tests. Subjects Non-diabetic participants (n 949) in the Insulin Resistance Atherosclerosis Study (IRAS). Results Egg consumption was inversely associated with SI and MCRI, and positively associated with fasting insulin in regression models adjusted for demographic, socio-economic, lifestyle and dietary factors (β = -0·22, 95 % CI -0·38, -0·045, P = 0·05 for SI; β = -0·20, 95 % CI -0·34, -0·055, P = 0·005 for MCRI; β = 0·35, 95 % CI 0·15, 0·54, P = 0·002 for fasting insulin; all P values for linear trend). These associations remained significant after additionally adjusting for energy intake or dietary saturated fat, although dietary cholesterol and BMI attenuated these associations to non-significance. Egg consumption was not associated with AIR. Conclusions Dietary cholesterol and BMI appear to mediate the inverse association of egg consumption with insulin sensitivity and clearance. Alternatively, egg consumption may be clustered with other dietary behaviours which increase BMI, hence negatively impacting on insulin sensitivity and clearance.
AB - Objective To examine the association between egg consumption and measures of insulin sensitivity (SI), acute insulin response (AIR) and metabolic clearance rate of insulin (MCRI). Design Cross-sectional analysis. Settings Egg consumption, categorized as <1/week, 1 to <3/week, 3 to <5/week and ≥5/week, was measured using a validated FFQ. SI, AIR and MCRI were determined from frequently sampled intravenous glucose tolerance tests. Subjects Non-diabetic participants (n 949) in the Insulin Resistance Atherosclerosis Study (IRAS). Results Egg consumption was inversely associated with SI and MCRI, and positively associated with fasting insulin in regression models adjusted for demographic, socio-economic, lifestyle and dietary factors (β = -0·22, 95 % CI -0·38, -0·045, P = 0·05 for SI; β = -0·20, 95 % CI -0·34, -0·055, P = 0·005 for MCRI; β = 0·35, 95 % CI 0·15, 0·54, P = 0·002 for fasting insulin; all P values for linear trend). These associations remained significant after additionally adjusting for energy intake or dietary saturated fat, although dietary cholesterol and BMI attenuated these associations to non-significance. Egg consumption was not associated with AIR. Conclusions Dietary cholesterol and BMI appear to mediate the inverse association of egg consumption with insulin sensitivity and clearance. Alternatively, egg consumption may be clustered with other dietary behaviours which increase BMI, hence negatively impacting on insulin sensitivity and clearance.
KW - Egg consumption
KW - Insulin clearance
KW - Insulin sensitivity
KW - Pancreatic β-cell function
UR - http://www.scopus.com/inward/record.url?scp=84901831728&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84901831728&partnerID=8YFLogxK
U2 - 10.1017/S1368980013001572
DO - 10.1017/S1368980013001572
M3 - Article
C2 - 23777633
AN - SCOPUS:84901831728
VL - 17
SP - 1595
EP - 1602
JO - Public Health Nutrition
JF - Public Health Nutrition
SN - 1368-9800
IS - 7
ER -