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Jeong EW, Park GR, Kim J, Baek Y, Go GW, Lee HG. Whey Proteins-Fortified Milk with Adjusted Casein to Whey Proteins Ratio Improved Muscle Strength and Endurance Exercise Capacity without Lean Mass Accretion in Rats. Foods 2022; 11:foods11040574. [PMID: 35206050 PMCID: PMC8870883 DOI: 10.3390/foods11040574] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 02/12/2022] [Accepted: 02/13/2022] [Indexed: 02/01/2023] Open
Abstract
This study investigated the effects of the casein to whey proteins (CW) ratio in milk on body composition, muscle strength, and endurance exercise capacity in rats. Thirty rats were assigned into five groups, and each treatment was administered for eight weeks: (1) control (isocaloric lactose supplementation), (2) CW8:2 (regular milk), (3) CW6:4, (4) CW5:5, and (5) nitrogen-free (lactose). The milk concentration was converted from a human equivalent dose (400 mL/60 kg body weight/day). All the milk-administered groups showed significantly greater growth performance, including body weight and weight gain compared to the isocaloric lactose control (p < 0.05). However, different CW ratios in milk had no effect on growth performance. Additionally, body composition, i.e., lean body mass and adiposity, was not affected by the CW ratio. Interestingly, CW6:4 and CW5:5 had significantly higher plasma branched-chain amino acids concentrations than control and CW8:2 (p < 0.05). In addition, CW5:5 showed significantly increased grip strength by 12–24% and time to exhaustion by 8–62% compared to the other groups (p < 0.05), indicating that the higher whey proteins ratio improved physical performance. We concluded that whey proteins-fortified milk enhances muscle strength and endurance exercise capacity without altering lean mass in rats.
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Affiliation(s)
- Eun Woo Jeong
- Department of Food and Nutrition, Hanyang University, Seoul 04763, Korea; (E.W.J.); (G.R.P.); (J.K.); (Y.B.)
| | - Gyu Ri Park
- Department of Food and Nutrition, Hanyang University, Seoul 04763, Korea; (E.W.J.); (G.R.P.); (J.K.); (Y.B.)
| | - Jiyun Kim
- Department of Food and Nutrition, Hanyang University, Seoul 04763, Korea; (E.W.J.); (G.R.P.); (J.K.); (Y.B.)
| | - Youjin Baek
- Department of Food and Nutrition, Hanyang University, Seoul 04763, Korea; (E.W.J.); (G.R.P.); (J.K.); (Y.B.)
| | - Gwang-woong Go
- Korean Living Science Research Center, Hanyang University, Seoul 04763, Korea
- Correspondence: (G.-w.G.); (H.G.L.); Tel.: +82-2-2220-1206 (G.-w.G.); +82-2-2220-1202 (H.G.L.)
| | - Hyeon Gyu Lee
- Department of Food and Nutrition, Hanyang University, Seoul 04763, Korea; (E.W.J.); (G.R.P.); (J.K.); (Y.B.)
- Correspondence: (G.-w.G.); (H.G.L.); Tel.: +82-2-2220-1206 (G.-w.G.); +82-2-2220-1202 (H.G.L.)
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Jeong EW, Park GR, Kim J, Yun SY, Imm JY, Lee HG. Effect of Modified Casein to Whey Protein Ratio on Dispersion Stability, Protein Quality and Body Composition in Rats. Food Sci Anim Resour 2021; 41:855-868. [PMID: 34632404 PMCID: PMC8460334 DOI: 10.5851/kosfa.2021.e42] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 07/29/2021] [Accepted: 08/05/2021] [Indexed: 11/29/2022] Open
Abstract
The present study was designed to investigate the effects of protein formula with different casein (C) to whey protein (W) ratios on dispersion stability, protein quality and body composition in rats. Modification of the casein to whey protein (CW) ratio affected the extent of protein aggregation, and heated CW-2:8 showed a significantly increased larger particle (>100 μm) size distribution. The largest protein aggregates were formed by whey protein self-aggregation. There were no significant differences in protein aggregation when the CW ratios changed from 10:0 to 5:5. Based on the protein quality assessment (CW-10:0, CW-8:2, CW-5:5, and CW-2:8) for four weeks, CW-10:0 showed a significantly higher feed intake (p<0.05), but the high proportion of whey protein in the diet (CW-5:5 and CW-2:8) increased the feed efficiency ratio, protein efficiency ratio, and net protein ratio compared to other groups. Similarly, CW-2:8 showed greater true digestibility compared to other groups. No significant differences in fat mass and lean mass analyzed by dual-energy x-ray absorptiometry were observed. A significant difference was found in the bone mineral density between the CW-10:0 and CW-2:8 groups (p<0.05), but no difference was observed among the other groups. Based on the results, CW-5:5 improved protein quality without causing protein instability problems in the dispersion.
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Affiliation(s)
- Eun Woo Jeong
- Department of Food and Nutrition, Hanyang
University, Seoul 04763, Korea
| | - Gyu Ri Park
- Department of Food and Nutrition, Hanyang
University, Seoul 04763, Korea
| | - Jiyun Kim
- Department of Food and Nutrition, Hanyang
University, Seoul 04763, Korea
| | - So-Yul Yun
- Department of Foods and Nutrition, Kookmin
University, Seoul 02707, Korea
| | - Jee-Young Imm
- Department of Foods and Nutrition, Kookmin
University, Seoul 02707, Korea
| | - Hyeon Gyu Lee
- Department of Food and Nutrition, Hanyang
University, Seoul 04763, Korea,Corresponding author : Hyeon
Gyu Lee, Department of Food and Nutrition, Hanyang University, Seoul 04763,
Korea. Tel: +82-2-2220-1201, Fax: +82-2-2292-1226, E-mail:
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May T, Klatt KC, Smith J, Castro E, Manary M, Caudill MA, Jahoor F, Fiorotto ML. Choline Supplementation Prevents a Hallmark Disturbance of Kwashiorkor in Weanling Mice Fed a Maize Vegetable Diet: Hepatic Steatosis of Undernutrition. Nutrients 2018; 10:nu10050653. [PMID: 29786674 PMCID: PMC5986532 DOI: 10.3390/nu10050653] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Revised: 05/09/2018] [Accepted: 05/16/2018] [Indexed: 12/03/2022] Open
Abstract
Hepatic steatosis is a hallmark feature of kwashiorkor malnutrition. However, the pathogenesis of hepatic steatosis in kwashiorkor is uncertain. Our objective was to develop a mouse model of childhood undernutrition in order to test the hypothesis that feeding a maize vegetable diet (MVD), like that consumed by children at risk for kwashiorkor, will cause hepatic steatosis which is prevented by supplementation with choline. A MVD was developed with locally sourced organic ingredients, and fed to weanling mice (n = 9) for 6 or 13 days. An additional group of mice (n = 4) were fed a choline supplemented MVD. Weight, body composition, and liver changes were compared to control mice (n = 10) at the beginning and end of the study. The MVD resulted in reduced weight gain and hepatic steatosis. Choline supplementation prevented hepatic steatosis and was associated with increased hepatic concentrations of the methyl donor betaine. Our findings show that (1) feeding a MVD to weanling mice rapidly induces hepatic steatosis, which is a hallmark disturbance of kwashiorkor; and that (2) hepatic steatosis associated with feeding a MVD is prevented by choline supplementation. These findings support the concept that insufficient choline intake may contribute to the pathogenesis of hepatic steatosis in kwashiorkor.
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Affiliation(s)
- Thaddaeus May
- Childrens' Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, 1100 Bates Street, Houston, TX 77030, USA.
| | - Kevin C Klatt
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853, USA.
| | - Jacob Smith
- University of Texas Rio Grande Valley School of Medicine, 1210 West Schunior Street, Edinburg, TX 78541, USA.
| | - Eumenia Castro
- Childrens' Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, 1100 Bates Street, Houston, TX 77030, USA.
| | - Mark Manary
- Department of Pediatrics, Washington University in St. Louis School of Medicine, 660 S. Euclid Ave., St. Louis, MO 63110, USA.
| | - Marie A Caudill
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853, USA.
| | - Farook Jahoor
- Childrens' Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, 1100 Bates Street, Houston, TX 77030, USA.
| | - Marta L Fiorotto
- Childrens' Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, 1100 Bates Street, Houston, TX 77030, USA.
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Taniguchi M, Nagao K, Inoue K, Imaizumi K. Cholesterol lowering effect of sulfur-containing amino acids added to a soybean protein diet in rats. J Nutr Sci Vitaminol (Tokyo) 2008; 54:448-53. [PMID: 19155582 DOI: 10.3177/jnsv.54.448] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The cholesterol-lowering action of soybean protein was studied with rats from the aspect of sulfur-containing amino acids using casein as a counterpart. Weanling rats were fed for 3 wk on a soybean protein isolate (SPI) or casein diet. Serum cholesterol levels did not differ between the two diet groups, but were lowered by supplementing methionine to a 10% SPI diet or cystine to an amino acid mixture diet, equivalent to a 10% SPI or to a 20% SPI diet. By adding methionine or cystine to a 10% SPI diet, cholesterol 7alpha-hydroxylase activity was elevated concomitantly with elevated hepatic glutathione (GSH) level, while hydroxyl methyl-glutalyl coenzyme A reductase activity was reduced by methionine, regardless of GSH levels. Excretion of fecal steroid was not significantly changed by addition of either amino acid, as expressed per body weight. These results indicate that the relative amount of methionine and cystine in a diet affected cholesterol metabolizing enzyme activity in a way not parallel to GSH concentration.
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Affiliation(s)
- Misako Taniguchi
- Department of Nutrition Sciences, Nakamura Gakuen University, Fukuoka, Japan.
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Hidiroglou N, Gilani GS, Long L, Zhao X, Madere R, Cockell K, Belonge B, Ratnayake WMN, Peace R. The influence of dietary vitamin E, fat, and methionine on blood cholesterol profile, homocysteine levels, and oxidizability of low density lipoprotein in the gerbil. J Nutr Biochem 2004; 15:730-40. [PMID: 15607646 DOI: 10.1016/j.jnutbio.2004.04.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2004] [Accepted: 04/15/2004] [Indexed: 11/23/2022]
Abstract
A 90-day feeding study with gerbils was conducted to evaluate the influence of dietary vitamin E levels (25 mg/kg diet, 75 mg/kg, 300 mg/kg, and 900 mg/kg), two levels of dietary methionione (casein or casein+L-methionine (1% w/w)) and two sources of lipid (soybean oil [20%] or soybean oil [4%]+coconut oil [16%, 1:4 w/w]) upon serum lipids (total cholesterol, HDL-cholesterol, LDL-cholesterol). In addition, this study examined the effects of diet-induced hyperhomocysteinemia and supplemental dietary vitamin E on the oxidation of low density lipoproteins. Tissue vitamin E (heart, liver, and plasma) demonstrated a dose response (P< or =0.001) following the supplementation with increasing dietary vitamin E (25, 75, 300, and 900 mg/kg). In addition, tissue vitamin E levels were found to be higher (P< or =0.001) in those animals receiving a combination of coconut oil+soybean oil as compared to the group receiving soybean oil solely. Blood cholesterol profiles indicated an increase (P< or =0.001) in total cholesterol and LDL cholesterol by the influence of saturated fat and supplemental methionine. Low-density lipoprotein cholesterol profile demonstrated a reduction (P< or =0.001) at the higher dietary vitamin E levels (300 and 900 mg/kg) as compared to the 25 mg/kg and 75 mg/kg dietary vitamin E. Plasma protein carbonyls were not influenced by dietary vitamin E nor by supplemental methionine intake. In vitro oxidation of LDL showed that vitamin E delayed the lag time of the oxidation phase (P< or =0.001) and reduced total diene production (P< or =0.001). On the contrary, supplemental methionine decreased (P< or =0.001) the delay time of the lag phase, whereas total diene production was increased (P< or =0.001). Plasma lipid hydroperoxides were significantly reduced (P< or =0.05) with supplemental dietary vitamin E, whereas supplemental L-methionine (1%) resulted in a significant (P< or =0.05) increase in lipid plasma hydroperoxide formation. Plasma homocysteine was elevated (P< or =0.001) with supplemental dietary L-methionine (1%) as well as the inclusion of dietary saturated fat. The present data showed that 1) a combination of dietary lipids (saturated and unsaturated fatty acids) as well as vitamin E and methionine supplementation altered blood cholesterol lipoprotein profiles; 2) in vitro oxidation parameters including LDL (lag time and diene production) and plasma hydroperoxide formations were affected by vitamin E and methionine supplementation; and 3) plasma homocysteine concentrations were influenced by supplemental methionine and the inclusion of dietary saturated fat.
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Affiliation(s)
- Nick Hidiroglou
- Nutrition Research Division, Food Directorate, Health Products and Food Branch, Health Canada, Banting Research Centre, Tunneys Pasture, Ottawa, ON, Canada KIAOL2.
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Kubow S, Goyette N, Koski KG. Tissue lipid peroxidation and serum lipoproteins in hamsters are affected by dietary protein composition. Nutr Res 1997. [DOI: 10.1016/s0271-5317(96)00257-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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