Body Fat-Reducing Effects of Whey Protein Diet in Male Mice

This study investigated the mechanism of reducing body fat via whey protein diet. Pregnant mice were fed whey or casein, and their offspring were fed by birth mothers. After weaning at 4 weeks, male pups received the diets administered to their birth mothers (n = 6 per group). At 12 weeks of age, bo...

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Main Authors: Kimitaka Nakazaki, Nobuhiko Nagano, Daichi Katayama, Shoichi Shimizu, Kengo Matsuda, Wataru Tokunaga, Ryoji Aoki, Kazumasa Fuwa, Ichiro Morioka
Format: Article
Language:English
Published: MDPI AG 2023-05-01
Series:Nutrients
Subjects:
Online Access:https://www.mdpi.com/2072-6643/15/10/2263
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author Kimitaka Nakazaki
Nobuhiko Nagano
Daichi Katayama
Shoichi Shimizu
Kengo Matsuda
Wataru Tokunaga
Ryoji Aoki
Kazumasa Fuwa
Ichiro Morioka
author_facet Kimitaka Nakazaki
Nobuhiko Nagano
Daichi Katayama
Shoichi Shimizu
Kengo Matsuda
Wataru Tokunaga
Ryoji Aoki
Kazumasa Fuwa
Ichiro Morioka
author_sort Kimitaka Nakazaki
collection DOAJ
description This study investigated the mechanism of reducing body fat via whey protein diet. Pregnant mice were fed whey or casein, and their offspring were fed by birth mothers. After weaning at 4 weeks, male pups received the diets administered to their birth mothers (n = 6 per group). At 12 weeks of age, body weight, fat mass, fasting blood glucose (FBG), insulin (IRI), homeostatic model assessment of insulin resistance (HOMA-IR), cholesterol (Cho), triglyceride (TG), the expression levels of lipid metabolism-related genes in liver tissues and metabolomic data of fat tissues were measured and compared between the groups. The birth weights of pups born were similar in the two groups. Compared to the pups in the casein group, at 12 weeks of age, pups in the whey group weighed less, had significantly lower fat mass, HOMA-IR and TG levels (<i>p</i> < 0.01, <i>p</i> = 0.02, <i>p</i> = 0.01, respectively), and significantly higher levels of the antioxidant glutathione and the anti-inflammatory 1-methylnicotinamide in fat tissues (<i>p</i> < 0.01, <i>p</i> = 0.04, respectively). No differences were observed in FBG, IRI, Cho levels (<i>p</i> = 0.75, <i>p</i> = 0.07, <i>p</i> = 0.63, respectively) and expression levels of lipid metabolism-related genes. Whey protein has more antioxidant and anti-inflammatory properties than casein protein, which may be its mechanism for reducing body fat.
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spelling doaj.art-470decf93c2b44ac9883d8da188a4ae42023-11-18T02:43:54ZengMDPI AGNutrients2072-66432023-05-011510226310.3390/nu15102263Body Fat-Reducing Effects of Whey Protein Diet in Male MiceKimitaka Nakazaki0Nobuhiko Nagano1Daichi Katayama2Shoichi Shimizu3Kengo Matsuda4Wataru Tokunaga5Ryoji Aoki6Kazumasa Fuwa7Ichiro Morioka8Department of Pediatrics and Child Health, Nihon University School of Medicine, Tokyo 173-8610, JapanDepartment of Pediatrics and Child Health, Nihon University School of Medicine, Tokyo 173-8610, JapanDepartment of Pediatrics and Child Health, Nihon University School of Medicine, Tokyo 173-8610, JapanDepartment of Pediatrics and Child Health, Nihon University School of Medicine, Tokyo 173-8610, JapanDepartment of Pediatrics and Child Health, Nihon University School of Medicine, Tokyo 173-8610, JapanDepartment of Pediatrics and Child Health, Nihon University School of Medicine, Tokyo 173-8610, JapanDepartment of Pediatrics and Child Health, Nihon University School of Medicine, Tokyo 173-8610, JapanDepartment of Pediatrics and Child Health, Nihon University School of Medicine, Tokyo 173-8610, JapanDepartment of Pediatrics and Child Health, Nihon University School of Medicine, Tokyo 173-8610, JapanThis study investigated the mechanism of reducing body fat via whey protein diet. Pregnant mice were fed whey or casein, and their offspring were fed by birth mothers. After weaning at 4 weeks, male pups received the diets administered to their birth mothers (n = 6 per group). At 12 weeks of age, body weight, fat mass, fasting blood glucose (FBG), insulin (IRI), homeostatic model assessment of insulin resistance (HOMA-IR), cholesterol (Cho), triglyceride (TG), the expression levels of lipid metabolism-related genes in liver tissues and metabolomic data of fat tissues were measured and compared between the groups. The birth weights of pups born were similar in the two groups. Compared to the pups in the casein group, at 12 weeks of age, pups in the whey group weighed less, had significantly lower fat mass, HOMA-IR and TG levels (<i>p</i> < 0.01, <i>p</i> = 0.02, <i>p</i> = 0.01, respectively), and significantly higher levels of the antioxidant glutathione and the anti-inflammatory 1-methylnicotinamide in fat tissues (<i>p</i> < 0.01, <i>p</i> = 0.04, respectively). No differences were observed in FBG, IRI, Cho levels (<i>p</i> = 0.75, <i>p</i> = 0.07, <i>p</i> = 0.63, respectively) and expression levels of lipid metabolism-related genes. Whey protein has more antioxidant and anti-inflammatory properties than casein protein, which may be its mechanism for reducing body fat.https://www.mdpi.com/2072-6643/15/10/2263antioxidant effectanti-inflammatory effectglutathione1-methylnicotinamidemetabolite analyses
spellingShingle Kimitaka Nakazaki
Nobuhiko Nagano
Daichi Katayama
Shoichi Shimizu
Kengo Matsuda
Wataru Tokunaga
Ryoji Aoki
Kazumasa Fuwa
Ichiro Morioka
Body Fat-Reducing Effects of Whey Protein Diet in Male Mice
Nutrients
antioxidant effect
anti-inflammatory effect
glutathione
1-methylnicotinamide
metabolite analyses
title Body Fat-Reducing Effects of Whey Protein Diet in Male Mice
title_full Body Fat-Reducing Effects of Whey Protein Diet in Male Mice
title_fullStr Body Fat-Reducing Effects of Whey Protein Diet in Male Mice
title_full_unstemmed Body Fat-Reducing Effects of Whey Protein Diet in Male Mice
title_short Body Fat-Reducing Effects of Whey Protein Diet in Male Mice
title_sort body fat reducing effects of whey protein diet in male mice
topic antioxidant effect
anti-inflammatory effect
glutathione
1-methylnicotinamide
metabolite analyses
url https://www.mdpi.com/2072-6643/15/10/2263
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