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Eggs distinctly modulate plasma carotenoid and lipoprotein subclasses in adult men following a carbohydrate-restricted diet.
J Nutr Biochem. 2010 Apr; 21(4):261-7.JN

Abstract

We previously reported that carbohydrate restriction (CR) (10-15% en) during a weight loss intervention lowered plasma triglycerides (TG) by 45% in male subjects (P<.001). However, those subjects with a higher intake of cholesterol provided by eggs (640 mg additional cholesterol, EGG group) had higher concentrations of high-density lipoprotein (HDL) cholesterol (P<.0001) than the individuals consuming lower amounts (0 mg of additional cholesterol, SUB group). The objectives of the present study were to evaluate whether CR and egg intake (1) modulate circulating carotenoids and (2) affect the concentrations of plasma apolipoproteins (apo), lipoprotein size and subfraction distribution. CR decreased the number of large and medium very low-density lipoprotein cholesterol subclasses (P<.001), while small low-density lipoprotein (LDL) were reduced (P<.001). In agreement with these observations, a decrease in apo B (P<.01) was observed. In addition, CR resulted in a 133% increase in apo C-II and a 65% decrease in apo C-III (P<.0001). Although an increase of the larger LDL subclass was observed for all subjects, the EGG group had a greater increase (P<.05). The EGG group also presented a higher number of large HDL particles (P<.01) compared to the SUB group. Regarding carotenoids, CR resulted in no changes in dietary or plasma alpha- or beta-carotene and beta-cryptoxanthin, while there was a significant reduction in both dietary and plasma lycopene (P<.001). In contrast, dietary lutein and zeaxanthin were increased during the intervention (P<.05). However, only those subjects from the EGG group presented higher concentrations of these two carotenoids in plasma, which were correlated with the higher concentrations of large LDL observed in the EGG group. These results indicate that CR favorably alters VLDL metabolism and apolipoprotein concentrations, while the components of the egg yolk favor the formation of larger LDL and HDL leading to an increase in plasma lutein and zeaxanthin.

Authors+Show Affiliations

Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Randomized Controlled Trial
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19369056

Citation

Mutungi, Gisella, et al. "Eggs Distinctly Modulate Plasma Carotenoid and Lipoprotein Subclasses in Adult Men Following a Carbohydrate-restricted Diet." The Journal of Nutritional Biochemistry, vol. 21, no. 4, 2010, pp. 261-7.
Mutungi G, Waters D, Ratliff J, et al. Eggs distinctly modulate plasma carotenoid and lipoprotein subclasses in adult men following a carbohydrate-restricted diet. J Nutr Biochem. 2010;21(4):261-7.
Mutungi, G., Waters, D., Ratliff, J., Puglisi, M., Clark, R. M., Volek, J. S., & Fernandez, M. L. (2010). Eggs distinctly modulate plasma carotenoid and lipoprotein subclasses in adult men following a carbohydrate-restricted diet. The Journal of Nutritional Biochemistry, 21(4), 261-7. https://doi.org/10.1016/j.jnutbio.2008.12.011
Mutungi G, et al. Eggs Distinctly Modulate Plasma Carotenoid and Lipoprotein Subclasses in Adult Men Following a Carbohydrate-restricted Diet. J Nutr Biochem. 2010;21(4):261-7. PubMed PMID: 19369056.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Eggs distinctly modulate plasma carotenoid and lipoprotein subclasses in adult men following a carbohydrate-restricted diet. AU - Mutungi,Gisella, AU - Waters,David, AU - Ratliff,Joseph, AU - Puglisi,Michael, AU - Clark,Richard M, AU - Volek,Jeff S, AU - Fernandez,Maria Luz, Y1 - 2009/04/14/ PY - 2008/06/02/received PY - 2008/12/02/revised PY - 2008/12/15/accepted PY - 2009/4/17/entrez PY - 2009/4/17/pubmed PY - 2010/6/15/medline SP - 261 EP - 7 JF - The Journal of nutritional biochemistry JO - J Nutr Biochem VL - 21 IS - 4 N2 - We previously reported that carbohydrate restriction (CR) (10-15% en) during a weight loss intervention lowered plasma triglycerides (TG) by 45% in male subjects (P<.001). However, those subjects with a higher intake of cholesterol provided by eggs (640 mg additional cholesterol, EGG group) had higher concentrations of high-density lipoprotein (HDL) cholesterol (P<.0001) than the individuals consuming lower amounts (0 mg of additional cholesterol, SUB group). The objectives of the present study were to evaluate whether CR and egg intake (1) modulate circulating carotenoids and (2) affect the concentrations of plasma apolipoproteins (apo), lipoprotein size and subfraction distribution. CR decreased the number of large and medium very low-density lipoprotein cholesterol subclasses (P<.001), while small low-density lipoprotein (LDL) were reduced (P<.001). In agreement with these observations, a decrease in apo B (P<.01) was observed. In addition, CR resulted in a 133% increase in apo C-II and a 65% decrease in apo C-III (P<.0001). Although an increase of the larger LDL subclass was observed for all subjects, the EGG group had a greater increase (P<.05). The EGG group also presented a higher number of large HDL particles (P<.01) compared to the SUB group. Regarding carotenoids, CR resulted in no changes in dietary or plasma alpha- or beta-carotene and beta-cryptoxanthin, while there was a significant reduction in both dietary and plasma lycopene (P<.001). In contrast, dietary lutein and zeaxanthin were increased during the intervention (P<.05). However, only those subjects from the EGG group presented higher concentrations of these two carotenoids in plasma, which were correlated with the higher concentrations of large LDL observed in the EGG group. These results indicate that CR favorably alters VLDL metabolism and apolipoprotein concentrations, while the components of the egg yolk favor the formation of larger LDL and HDL leading to an increase in plasma lutein and zeaxanthin. SN - 1873-4847 UR - https://www.unboundmedicine.com/medline/citation/19369056/Eggs_distinctly_modulate_plasma_carotenoid_and_lipoprotein_subclasses_in_adult_men_following_a_carbohydrate_restricted_diet_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0955-2863(09)00003-5 DB - PRIME DP - Unbound Medicine ER -