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Open AccessArticle

Low-Carbohydrate Diet Inhibits Different Advanced Glycation End Products in Kidney Depending on Lipid Composition but Causes Adverse Morphological Changes in a Non-Obese Model Mice

1
Department of Health Science, Daito Bunka University, Saitama 355-8681, Japan
2
Graduate School of Sports and Health Science, Daito Bunka University, Saitama 355-8681, Japan
*
Author to whom correspondence should be addressed.
Nutrients 2019, 11(11), 2801; https://doi.org/10.3390/nu11112801
Received: 11 September 2019 / Revised: 30 October 2019 / Accepted: 13 November 2019 / Published: 16 November 2019
Low carbohydrate diets (LC diets) have been noted for adverse health effects. In addition, the effect of lipid composition on an LC diet is unclear. In this study, we used an LC diet containing two different lipids, lard (LC group) and medium-chain triglyceride oil (MCT-LC group), to examine the effect of an LC diet in non-obese mice. Male C57BL/6J mice were fed the control diet or one of the experimental diets ad libitum for 13 weeks. Increased renal weight and glomerular hypertrophy, as well as enlargement of intraglomerular small vessels with wall thickening, were seen in the LC and MCT-LC groups. Renal AMP-activated protein kinase activity was significantly decreased only in the LC diet group. On the other hand, epididymal adipose tissue weight and adipocyte area were markedly decreased only in the MCT-LC group. A positive effect was also observed in the kidney, where different advanced glycation end products, Nε-(carboxyethyl)-lysine and Nε-(carboxymethyl)-lysine, were inhibited depending on the lipid composition of the LC diet. Our findings suggest that, in non-obese conditions, low dietary intake of carbohydrates had both positive and negative impacts. The safety of diets low in carbohydrates, including the effects of fatty acid composition, requires further investigation. View Full-Text
Keywords: low-carbohydrate diet; non-obese mice; medium-chain triglyceride; kidney; advanced glycation end products low-carbohydrate diet; non-obese mice; medium-chain triglyceride; kidney; advanced glycation end products
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Kaburagi, T.; Kanaki, K.; Otsuka, Y.; Hino, R. Low-Carbohydrate Diet Inhibits Different Advanced Glycation End Products in Kidney Depending on Lipid Composition but Causes Adverse Morphological Changes in a Non-Obese Model Mice. Nutrients 2019, 11, 2801.

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