Soy protein and isoflavones influence adiposity and development of metabolic syndrome in the obese male ZDF rat

Background/Aims: Previously, we demonstrated that soy protein ameliorates the diabetic phenotype in several rodent models of obesity and metabolic syndrome (MS). This study was designed to further elucidate factors related to adiposity, glycemic control, and renal function in male Zucker Diabetic Fa...

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Veröffentlicht in:Annals of nutrition and metabolism 2007-01, Vol.51 (1), p.42-52
Hauptverfasser: Davis, Jeremy, Higginbotham, Allan, O’Connor, Timothy, Moustaid-Moussa, Naima, Tebbe, Adam, Kim, Young-Cheul, Cho, Kae Won, Shay, Neil, Adler, Stuart, Peterson, Richard, Banz, William
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container_end_page 52
container_issue 1
container_start_page 42
container_title Annals of nutrition and metabolism
container_volume 51
creator Davis, Jeremy
Higginbotham, Allan
O’Connor, Timothy
Moustaid-Moussa, Naima
Tebbe, Adam
Kim, Young-Cheul
Cho, Kae Won
Shay, Neil
Adler, Stuart
Peterson, Richard
Banz, William
description Background/Aims: Previously, we demonstrated that soy protein ameliorates the diabetic phenotype in several rodent models of obesity and metabolic syndrome (MS). This study was designed to further elucidate factors related to adiposity, glycemic control, and renal function in male Zucker Diabetic Fatty (ZDF/Lepr(fa)) rats. Methods: Animals were randomly assigned to one of four diets: control, casein (C); low isoflavone (LIS) soy protein; high isoflavone (HIS) soy protein, or casein + rosiglitazone (CR) for 11 weeks. At sacrifice, physiological, biochemical, and molecular parameters were determined. Results: Body weight and total adiposity were higher in LIS and CR diet groups despite lower food intake. Additionally, these animals exhibited differential regulation of adipose-specific proteins (PPAR-gamma and GLUT4) and enzyme activity (FAS and GPDH). HIS-fed animals had reduced total and liver adiposity. Glycemic control was prolonged in both soy-based and rosiglitazone (RGZ) groups. Renal dysfunction was significantly reduced in soy-fed and RGZ-treated rodents as demonstrated by lower levels of proteinuria and dilated tubules with proteinaceous casts. Conclusion: Collectively, these data provide evidence that soy protein with low or high isoflavone content may have therapeutic significance in reducing severity of diabetes, MS, and renal disease as demonstrated in this preclinical model.
doi_str_mv 10.1159/000100820
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This study was designed to further elucidate factors related to adiposity, glycemic control, and renal function in male Zucker Diabetic Fatty (ZDF/Lepr(fa)) rats. Methods: Animals were randomly assigned to one of four diets: control, casein (C); low isoflavone (LIS) soy protein; high isoflavone (HIS) soy protein, or casein + rosiglitazone (CR) for 11 weeks. At sacrifice, physiological, biochemical, and molecular parameters were determined. Results: Body weight and total adiposity were higher in LIS and CR diet groups despite lower food intake. Additionally, these animals exhibited differential regulation of adipose-specific proteins (PPAR-gamma and GLUT4) and enzyme activity (FAS and GPDH). HIS-fed animals had reduced total and liver adiposity. Glycemic control was prolonged in both soy-based and rosiglitazone (RGZ) groups. Renal dysfunction was significantly reduced in soy-fed and RGZ-treated rodents as demonstrated by lower levels of proteinuria and dilated tubules with proteinaceous casts. Conclusion: Collectively, these data provide evidence that soy protein with low or high isoflavone content may have therapeutic significance in reducing severity of diabetes, MS, and renal disease as demonstrated in this preclinical model.</description><identifier>ISSN: 0250-6807</identifier><identifier>EISSN: 1421-9697</identifier><identifier>DOI: 10.1159/000100820</identifier><identifier>PMID: 17356265</identifier><language>eng</language><publisher>Basel, Switzerland: S. Karger AG</publisher><subject>adipocytes ; adipose tissue ; Adiposity - drug effects ; animal disease models ; Animals ; Blood Glucose - drug effects ; Body fat ; Body weight ; Caseins - pharmacology ; Diabetes ; diabetes mellitus ; Enzymatic activity ; glycemic control ; Hypoglycemic Agents - pharmacology ; isoflavones ; Isoflavones - pharmacology ; Kidney Diseases - prevention &amp; control ; Kidneys ; lipogenesis ; Liver - drug effects ; Male ; males ; Metabolic disorders ; Metabolic syndrome ; Metabolic Syndrome - diet therapy ; Metabolic Syndrome - etiology ; Milk Proteins - pharmacology ; Nutrition ; nutritional intervention ; Obesity ; Obesity - complications ; Original Paper ; overweight ; Phytochemicals ; Proteins ; Proteinuria - prevention &amp; control ; Rats ; Rats, Inbred Strains ; Renal function ; Rodents ; Soy products ; soy protein ; Soybean Proteins - administration &amp; dosage ; Thiazolidinediones - pharmacology ; Zucker Diabettic fatty rats</subject><ispartof>Annals of nutrition and metabolism, 2007-01, Vol.51 (1), p.42-52</ispartof><rights>2007 S. Karger AG</rights><rights>2007 S. Karger AG, Basel</rights><rights>Copyright 2007 S. Karger AG, Basel.</rights><rights>Copyright (c) 2007 S. 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This study was designed to further elucidate factors related to adiposity, glycemic control, and renal function in male Zucker Diabetic Fatty (ZDF/Lepr(fa)) rats. Methods: Animals were randomly assigned to one of four diets: control, casein (C); low isoflavone (LIS) soy protein; high isoflavone (HIS) soy protein, or casein + rosiglitazone (CR) for 11 weeks. At sacrifice, physiological, biochemical, and molecular parameters were determined. Results: Body weight and total adiposity were higher in LIS and CR diet groups despite lower food intake. Additionally, these animals exhibited differential regulation of adipose-specific proteins (PPAR-gamma and GLUT4) and enzyme activity (FAS and GPDH). HIS-fed animals had reduced total and liver adiposity. Glycemic control was prolonged in both soy-based and rosiglitazone (RGZ) groups. 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Higginbotham, Allan ; O’Connor, Timothy ; Moustaid-Moussa, Naima ; Tebbe, Adam ; Kim, Young-Cheul ; Cho, Kae Won ; Shay, Neil ; Adler, Stuart ; Peterson, Richard ; Banz, William</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c443t-cb8fed729ab2d069c39a6801ef0b2a6b3399f16c7aa6d79ed1d1c244a87567083</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>adipocytes</topic><topic>adipose tissue</topic><topic>Adiposity - drug effects</topic><topic>animal disease models</topic><topic>Animals</topic><topic>Blood Glucose - drug effects</topic><topic>Body fat</topic><topic>Body weight</topic><topic>Caseins - pharmacology</topic><topic>Diabetes</topic><topic>diabetes mellitus</topic><topic>Enzymatic activity</topic><topic>glycemic control</topic><topic>Hypoglycemic Agents - pharmacology</topic><topic>isoflavones</topic><topic>Isoflavones - pharmacology</topic><topic>Kidney Diseases - prevention &amp; 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subjects adipocytes
adipose tissue
Adiposity - drug effects
animal disease models
Animals
Blood Glucose - drug effects
Body fat
Body weight
Caseins - pharmacology
Diabetes
diabetes mellitus
Enzymatic activity
glycemic control
Hypoglycemic Agents - pharmacology
isoflavones
Isoflavones - pharmacology
Kidney Diseases - prevention & control
Kidneys
lipogenesis
Liver - drug effects
Male
males
Metabolic disorders
Metabolic syndrome
Metabolic Syndrome - diet therapy
Metabolic Syndrome - etiology
Milk Proteins - pharmacology
Nutrition
nutritional intervention
Obesity
Obesity - complications
Original Paper
overweight
Phytochemicals
Proteins
Proteinuria - prevention & control
Rats
Rats, Inbred Strains
Renal function
Rodents
Soy products
soy protein
Soybean Proteins - administration & dosage
Thiazolidinediones - pharmacology
Zucker Diabettic fatty rats
title Soy protein and isoflavones influence adiposity and development of metabolic syndrome in the obese male ZDF rat
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