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Postprandial whole-body protein metabolism after a meat meal is influenced by chewing efficiency in elderly subjects

Identifieur interne : 000273 ( PascalFrancis/Curation ); précédent : 000272; suivant : 000274

Postprandial whole-body protein metabolism after a meat meal is influenced by chewing efficiency in elderly subjects

Auteurs : Didier Remond [France] ; Marie Machebeuf [France] ; Claude Yven [France] ; Caroline Buffiere [France] ; Laurence Mioche [France] ; Laurent Mosoni [France] ; Philippe Patureau Mirand [France]

Source :

RBID : Pascal:07-0270781

Descripteurs français

English descriptors

Abstract

Background: The rate of protein digestion affects protein utilization in elderly subjects. Although meat is a widely consumed protein source, little is known of its digestion rate and how it can be affected by the chewing capacity of elderly subjects. Objectives: We used a [1-13C]leucine balance with a single-meal protocol to assess the absorption rate of meat protein and to estimate the utilization of meat protein in elderly subjects with different chewing efficiency. Design: Twenty elderly volunteers aged 60-75 y were involved in the study. Ten of them had healthy natural dentition, and the other 10 were edentulous and wore complete dentures. Whole-body fluxes of leucine, before and after the meal (120 g beef meat), were measured with the use of a [1-13C]leucine intravenous infusion. Results: A rapid increase in plasma aminoacidemia and plasma leucine entry rate was observed after meat intake in dentate subjects. In complete denture wearers the increase in leucine entry rate was delayed (P < 0.05), and the amount of leucine appearing in peripheral blood during the whole postprandial period was lower than in dentate subjects (P < 0.01). Postprandial whole-body protein synthesis was lower in denture wearers than in dentate subjects (30% compared with 48% of leucine intake, respectively; P < 0.05). Conclusion: Meat proteins could be classified as fast digested proteins. However, this property depends on the chewing capacity of elderly subjects. This study showed that meat protein utilization for protein synthesis can be impaired by a decrease in the chewing efficiency of elderly subjects.
pA  
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A03   1    @0 Am. j. clin. nutr.
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A08 01  1  ENG  @1 Postprandial whole-body protein metabolism after a meat meal is influenced by chewing efficiency in elderly subjects
A11 01  1    @1 REMOND (Didier)
A11 02  1    @1 MACHEBEUF (Marie)
A11 03  1    @1 YVEN (Claude)
A11 04  1    @1 BUFFIERE (Caroline)
A11 05  1    @1 MIOCHE (Laurence)
A11 06  1    @1 MOSONI (Laurent)
A11 07  1    @1 PATUREAU MIRAND (Philippe)
A14 01      @1 Institut National de la Recherche Agronomique, UMR 1019, Unité de Nutrition Humaine, Centre de Clermont-Ferrand-Theix @2 Saint Genès-Champanelle @3 FRA @Z 1 aut. @Z 2 aut. @Z 3 aut. @Z 4 aut. @Z 5 aut. @Z 6 aut. @Z 7 aut.
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A21       @1 2007
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A44       @0 0000 @1 © 2007 INIST-CNRS. All rights reserved.
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A64 01  1    @0 The American journal of clinical nutrition
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C01 01    ENG  @0 Background: The rate of protein digestion affects protein utilization in elderly subjects. Although meat is a widely consumed protein source, little is known of its digestion rate and how it can be affected by the chewing capacity of elderly subjects. Objectives: We used a [1-13C]leucine balance with a single-meal protocol to assess the absorption rate of meat protein and to estimate the utilization of meat protein in elderly subjects with different chewing efficiency. Design: Twenty elderly volunteers aged 60-75 y were involved in the study. Ten of them had healthy natural dentition, and the other 10 were edentulous and wore complete dentures. Whole-body fluxes of leucine, before and after the meal (120 g beef meat), were measured with the use of a [1-13C]leucine intravenous infusion. Results: A rapid increase in plasma aminoacidemia and plasma leucine entry rate was observed after meat intake in dentate subjects. In complete denture wearers the increase in leucine entry rate was delayed (P < 0.05), and the amount of leucine appearing in peripheral blood during the whole postprandial period was lower than in dentate subjects (P < 0.01). Postprandial whole-body protein synthesis was lower in denture wearers than in dentate subjects (30% compared with 48% of leucine intake, respectively; P < 0.05). Conclusion: Meat proteins could be classified as fast digested proteins. However, this property depends on the chewing capacity of elderly subjects. This study showed that meat protein utilization for protein synthesis can be impaired by a decrease in the chewing efficiency of elderly subjects.
C02 01  X    @0 002A16E
C03 01  X  FRE  @0 Postprandial @5 01
C03 01  X  ENG  @0 Postprandial @5 01
C03 01  X  SPA  @0 Postprandial @5 01
C03 02  X  FRE  @0 Corps entier @5 02
C03 02  X  ENG  @0 Whole body @5 02
C03 02  X  SPA  @0 Cuerpo entero @5 02
C03 03  X  FRE  @0 Protéine @5 03
C03 03  X  ENG  @0 Protein @5 03
C03 03  X  SPA  @0 Proteína @5 03
C03 04  X  FRE  @0 Métabolisme @5 04
C03 04  X  ENG  @0 Metabolism @5 04
C03 04  X  SPA  @0 Metabolismo @5 04
C03 05  X  FRE  @0 Viande @5 05
C03 05  X  ENG  @0 Meat @5 05
C03 05  X  SPA  @0 Carne @5 05
C03 06  X  FRE  @0 Repas @5 06
C03 06  X  ENG  @0 Meal @5 06
C03 06  X  SPA  @0 Comida @5 06
C03 07  X  FRE  @0 Mastication @5 07
C03 07  X  ENG  @0 Chewing @5 07
C03 07  X  SPA  @0 Masticación @5 07
C03 08  X  FRE  @0 Efficacité @5 08
C03 08  X  ENG  @0 Efficiency @5 08
C03 08  X  SPA  @0 Eficacia @5 08
C03 09  X  FRE  @0 Personne âgée @5 10
C03 09  X  ENG  @0 Elderly @5 10
C03 09  X  SPA  @0 Anciano @5 10
C03 10  X  FRE  @0 Leucine @2 NK @2 FR @5 11
C03 10  X  ENG  @0 Leucine @2 NK @2 FR @5 11
C03 10  X  SPA  @0 Leucina @2 NK @2 FR @5 11
C03 11  X  FRE  @0 Cinétique @5 13
C03 11  X  ENG  @0 Kinetics @5 13
C03 11  X  SPA  @0 Cinética @5 13
C07 01  X  FRE  @0 Homme
C07 01  X  ENG  @0 Human
C07 01  X  SPA  @0 Hombre
N21       @1 183
N44 01      @1 OTO
N82       @1 OTO

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Pascal:07-0270781

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<div type="abstract" xml:lang="en">Background: The rate of protein digestion affects protein utilization in elderly subjects. Although meat is a widely consumed protein source, little is known of its digestion rate and how it can be affected by the chewing capacity of elderly subjects. Objectives: We used a [1-
<sup>13</sup>
C]leucine balance with a single-meal protocol to assess the absorption rate of meat protein and to estimate the utilization of meat protein in elderly subjects with different chewing efficiency. Design: Twenty elderly volunteers aged 60-75 y were involved in the study. Ten of them had healthy natural dentition, and the other 10 were edentulous and wore complete dentures. Whole-body fluxes of leucine, before and after the meal (120 g beef meat), were measured with the use of a [1-
<sup>13</sup>
C]leucine intravenous infusion. Results: A rapid increase in plasma aminoacidemia and plasma leucine entry rate was observed after meat intake in dentate subjects. In complete denture wearers the increase in leucine entry rate was delayed (P < 0.05), and the amount of leucine appearing in peripheral blood during the whole postprandial period was lower than in dentate subjects (P < 0.01). Postprandial whole-body protein synthesis was lower in denture wearers than in dentate subjects (30% compared with 48% of leucine intake, respectively; P < 0.05). Conclusion: Meat proteins could be classified as fast digested proteins. However, this property depends on the chewing capacity of elderly subjects. This study showed that meat protein utilization for protein synthesis can be impaired by a decrease in the chewing efficiency of elderly subjects.</div>
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<s0>0000</s0>
<s1>© 2007 INIST-CNRS. All rights reserved.</s1>
</fA44>
<fA45>
<s0>32 ref.</s0>
</fA45>
<fA47 i1="01" i2="1">
<s0>07-0270781</s0>
</fA47>
<fA60>
<s1>P</s1>
</fA60>
<fA61>
<s0>A</s0>
</fA61>
<fA64 i1="01" i2="1">
<s0>The American journal of clinical nutrition</s0>
</fA64>
<fA66 i1="01">
<s0>USA</s0>
</fA66>
<fC01 i1="01" l="ENG">
<s0>Background: The rate of protein digestion affects protein utilization in elderly subjects. Although meat is a widely consumed protein source, little is known of its digestion rate and how it can be affected by the chewing capacity of elderly subjects. Objectives: We used a [1-
<sup>13</sup>
C]leucine balance with a single-meal protocol to assess the absorption rate of meat protein and to estimate the utilization of meat protein in elderly subjects with different chewing efficiency. Design: Twenty elderly volunteers aged 60-75 y were involved in the study. Ten of them had healthy natural dentition, and the other 10 were edentulous and wore complete dentures. Whole-body fluxes of leucine, before and after the meal (120 g beef meat), were measured with the use of a [1-
<sup>13</sup>
C]leucine intravenous infusion. Results: A rapid increase in plasma aminoacidemia and plasma leucine entry rate was observed after meat intake in dentate subjects. In complete denture wearers the increase in leucine entry rate was delayed (P < 0.05), and the amount of leucine appearing in peripheral blood during the whole postprandial period was lower than in dentate subjects (P < 0.01). Postprandial whole-body protein synthesis was lower in denture wearers than in dentate subjects (30% compared with 48% of leucine intake, respectively; P < 0.05). Conclusion: Meat proteins could be classified as fast digested proteins. However, this property depends on the chewing capacity of elderly subjects. This study showed that meat protein utilization for protein synthesis can be impaired by a decrease in the chewing efficiency of elderly subjects.</s0>
</fC01>
<fC02 i1="01" i2="X">
<s0>002A16E</s0>
</fC02>
<fC03 i1="01" i2="X" l="FRE">
<s0>Postprandial</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="X" l="ENG">
<s0>Postprandial</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="X" l="SPA">
<s0>Postprandial</s0>
<s5>01</s5>
</fC03>
<fC03 i1="02" i2="X" l="FRE">
<s0>Corps entier</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="ENG">
<s0>Whole body</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="SPA">
<s0>Cuerpo entero</s0>
<s5>02</s5>
</fC03>
<fC03 i1="03" i2="X" l="FRE">
<s0>Protéine</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="X" l="ENG">
<s0>Protein</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="X" l="SPA">
<s0>Proteína</s0>
<s5>03</s5>
</fC03>
<fC03 i1="04" i2="X" l="FRE">
<s0>Métabolisme</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="ENG">
<s0>Metabolism</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="SPA">
<s0>Metabolismo</s0>
<s5>04</s5>
</fC03>
<fC03 i1="05" i2="X" l="FRE">
<s0>Viande</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="X" l="ENG">
<s0>Meat</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="X" l="SPA">
<s0>Carne</s0>
<s5>05</s5>
</fC03>
<fC03 i1="06" i2="X" l="FRE">
<s0>Repas</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="ENG">
<s0>Meal</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="SPA">
<s0>Comida</s0>
<s5>06</s5>
</fC03>
<fC03 i1="07" i2="X" l="FRE">
<s0>Mastication</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="ENG">
<s0>Chewing</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="SPA">
<s0>Masticación</s0>
<s5>07</s5>
</fC03>
<fC03 i1="08" i2="X" l="FRE">
<s0>Efficacité</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="ENG">
<s0>Efficiency</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="SPA">
<s0>Eficacia</s0>
<s5>08</s5>
</fC03>
<fC03 i1="09" i2="X" l="FRE">
<s0>Personne âgée</s0>
<s5>10</s5>
</fC03>
<fC03 i1="09" i2="X" l="ENG">
<s0>Elderly</s0>
<s5>10</s5>
</fC03>
<fC03 i1="09" i2="X" l="SPA">
<s0>Anciano</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="X" l="FRE">
<s0>Leucine</s0>
<s2>NK</s2>
<s2>FR</s2>
<s5>11</s5>
</fC03>
<fC03 i1="10" i2="X" l="ENG">
<s0>Leucine</s0>
<s2>NK</s2>
<s2>FR</s2>
<s5>11</s5>
</fC03>
<fC03 i1="10" i2="X" l="SPA">
<s0>Leucina</s0>
<s2>NK</s2>
<s2>FR</s2>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="X" l="FRE">
<s0>Cinétique</s0>
<s5>13</s5>
</fC03>
<fC03 i1="11" i2="X" l="ENG">
<s0>Kinetics</s0>
<s5>13</s5>
</fC03>
<fC03 i1="11" i2="X" l="SPA">
<s0>Cinética</s0>
<s5>13</s5>
</fC03>
<fC07 i1="01" i2="X" l="FRE">
<s0>Homme</s0>
</fC07>
<fC07 i1="01" i2="X" l="ENG">
<s0>Human</s0>
</fC07>
<fC07 i1="01" i2="X" l="SPA">
<s0>Hombre</s0>
</fC07>
<fN21>
<s1>183</s1>
</fN21>
<fN44 i1="01">
<s1>OTO</s1>
</fN44>
<fN82>
<s1>OTO</s1>
</fN82>
</pA>
</standard>
</inist>
</record>

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