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Hadidi M, Garcia SR, Ziogkas D, McClements DJ, Moreno A. Cereal bran proteins: recent advances in extraction, properties, and applications. Crit Rev Food Sci Nutr 2023:1-25. [PMID: 37366171 DOI: 10.1080/10408398.2023.2226730] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
The projected global population is expected to reach around 9.7 billion by 2050, indicating a greater demand for proteins in the human diet. Cereal bran proteins (CBPs) have been identified as high-quality proteins, with potential applications in both the food and pharmaceutical industries. In 2020, global cereal grain production was 2.1 billion metric tonnes, including wheat, rice, corn, millet, barley, and oats. Cereal bran, obtained through milling, made up 10-20% of total cereal grain production, varying by grain type and milling degree. In this article, the molecular composition and nutritional value of CBPs are summarized, and recent advances in their extraction and purification are discussed. The functional properties of CBPs are then reviewed, including their solubility, binding, emulsifying, foaming, gelling, and thermal properties. Finally, current challenges to the application of CBPs in foods are highlighted, such as the presence of antinutritional factors, low digestibility, and allergenicity, as well as potential strategies to improve the nutritional and functional properties by overcoming these challenges. CBPs exhibit nutritional and functional attributes that are similar to those of other widely used plant-based protein sources. Thus, CBPs have considerable potential for use as ingredients in food, pharmaceutical, and other products.
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Affiliation(s)
- Milad Hadidi
- Department of Organic Chemistry, Faculty of Chemical Sciences and Technologies, University of Castilla-La Mancha, Ciudad Real, Spain
| | - Samuel Rodriguez Garcia
- Department of Organic Chemistry, Faculty of Chemical Sciences and Technologies, University of Castilla-La Mancha, Ciudad Real, Spain
| | - Dimitrios Ziogkas
- Department of Organic Chemistry, Faculty of Chemical Sciences and Technologies, University of Castilla-La Mancha, Ciudad Real, Spain
| | | | - Andres Moreno
- Department of Organic Chemistry, Faculty of Chemical Sciences and Technologies, University of Castilla-La Mancha, Ciudad Real, Spain
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2
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Xia W, Fang X, Gao Y, Wu W, Han Y, Liu R, Yang H, Chen H, Gao H. Advances of stable isotope technology in food safety analysis and nutrient metabolism research. Food Chem 2023; 408:135191. [PMID: 36527919 DOI: 10.1016/j.foodchem.2022.135191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 11/21/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022]
Abstract
Food quality, safety, and the regulatory metabolism of food nutrients in cells are primary factors in determining human health. However, residues of undesirable or hazardous compounds in food products and dysregulation in the nutrient metabolism inevitably occur occasionally. For years, chromatography-mass spectrometry technology has been recognized as an essential research tool in food analysis and nutrient metabolism research, and it is more accurate and robust when coupled with stable isotopes. In this study, we summarize the applications of stable isotope technology in the quantification of contaminant residues (pesticides, veterinary drugs, mycotoxins, polycyclic aromatic hydrocarbons, and other hazardous compounds) in foods and in the nutrients (glucose, lipids, amino acids and proteins) metabolism research. The aim of this review was to serve as a reference for providing effective analysis techniques for protecting food quality and human health, and to pave the way for the broader application of stable isotope technology.
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Affiliation(s)
- Wei Xia
- Key Laboratory of Post-Harvest Handing of Fruits, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Key Laboratory of Postharvest Preservation and Processing of Fruits and Vegetables, China National Light Industry, Food Science Institute, Zhejiang Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Hangzhou 310021, China
| | - Xiangjun Fang
- Key Laboratory of Post-Harvest Handing of Fruits, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Key Laboratory of Postharvest Preservation and Processing of Fruits and Vegetables, China National Light Industry, Food Science Institute, Zhejiang Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Hangzhou 310021, China
| | - Yuan Gao
- Key Laboratory of Post-Harvest Handing of Fruits, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Key Laboratory of Postharvest Preservation and Processing of Fruits and Vegetables, China National Light Industry, Food Science Institute, Zhejiang Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Hangzhou 310021, China
| | - Weijie Wu
- Key Laboratory of Post-Harvest Handing of Fruits, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Key Laboratory of Postharvest Preservation and Processing of Fruits and Vegetables, China National Light Industry, Food Science Institute, Zhejiang Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Hangzhou 310021, China
| | - Yanchao Han
- Key Laboratory of Post-Harvest Handing of Fruits, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Key Laboratory of Postharvest Preservation and Processing of Fruits and Vegetables, China National Light Industry, Food Science Institute, Zhejiang Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Hangzhou 310021, China
| | - Ruiling Liu
- Key Laboratory of Post-Harvest Handing of Fruits, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Key Laboratory of Postharvest Preservation and Processing of Fruits and Vegetables, China National Light Industry, Food Science Institute, Zhejiang Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Hangzhou 310021, China
| | - Hailong Yang
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China.
| | - Hangjun Chen
- Key Laboratory of Post-Harvest Handing of Fruits, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Key Laboratory of Postharvest Preservation and Processing of Fruits and Vegetables, China National Light Industry, Food Science Institute, Zhejiang Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Hangzhou 310021, China.
| | - Haiyan Gao
- Key Laboratory of Post-Harvest Handing of Fruits, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Key Laboratory of Postharvest Preservation and Processing of Fruits and Vegetables, China National Light Industry, Food Science Institute, Zhejiang Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Hangzhou 310021, China.
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3
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Rafii M, Pencharz PB, Boileau K, Ball RO, Tomlinson C, Elango R, Courtney-Martin G. Metabolic Availability of Methionine Assessed Using Indicator Amino Acid Oxidation Method, Is Greater when Cooked Lentils and Steamed Rice Are Combined in the Diet of Healthy Young Men. J Nutr 2022; 152:1467-1475. [PMID: 35218191 DOI: 10.1093/jn/nxac049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 07/20/2021] [Accepted: 02/22/2022] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Lentil is considered a high protein source. However, it is low in sulphur amino acids (SAA) and their metabolic availability (MA) is further affected by antinutritional factors in lentils. The combination of lentils with grains such as rice can enhance the protein quality of a lentil-based meal but the MA of SAA in lentils must first be known. OBJECTIVES The objectives of the current study were to assess the MA of methionine in lentils and to test the effects of consumption of complementing lentils with rice in young adults. METHODS Five healthy young men [age <30 y, BMI <25 (in kg/m2)] were each studied at 8 or 10 intake amounts of methionine in random order; 4 daily intake amounts of l-methionine: 0.5, 1, 2, and 3 mg.kg-1.d-1 (reference diet), 3 daily intake amounts of methionine from lentils, and 3 daily intake amounts of the mixed meal of lentils + rice (test diets). The MA of methionine and the effects of complementation were assessed by comparing the indicator amino acid oxidation (IAAO) response to varying intakes of methionine in cooked Canadian lentils, and in rice + lentils combined, compared with the IAAO response to l-methionine intakes in the reference protein (crystalline AA mixture patterned after egg protein) using the slope ratio method. l-[1-13C] phenylalanine was used as the indicator. Data were analyzed using the procedure "MIXED" with subject as a random variable, and oxidation day as repeated measure. RESULTS The MA of methionine from lentils was 69%. Complementation of cooked lentils with rice decreased the oxidation of l-[1-13C] phenylalanine by up to 16% (P < 0.05). CONCLUSIONS The content and MA of methionine are low in lentils. However, combination of lentils with rice in a 1:1 ratio can improve the protein quality of lentil-based diets, resulting in increased protein synthesis in young healthy adults. This trial was registered at www.clinical trials.gov as NCT03110913.
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Affiliation(s)
- Mahroukh Rafii
- Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Paul B Pencharz
- Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada.,Departments of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada.,Departments of Paediatrics, University of Toronto, Toronto, Ontario, Canada
| | - Kaylem Boileau
- Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Ronald O Ball
- Departments of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada.,Department of Agriculture, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada
| | - Christopher Tomlinson
- Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada.,Departments of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada.,Departments of Paediatrics, University of Toronto, Toronto, Ontario, Canada
| | - Rajavel Elango
- Department of Pediatrics, School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada.,BC Children's Hospital Research Institute, BC Children's Hospital, Vancouver, BC, Canada
| | - Glenda Courtney-Martin
- Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada.,Departments of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada.,Faculty of Kinesiology & Physical Education, University of Toronto, Toronto, Ontario, Canada
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Langyan S, Yadava P, Khan FN, Dar ZA, Singh R, Kumar A. Sustaining Protein Nutrition Through Plant-Based Foods. Front Nutr 2022; 8:772573. [PMID: 35118103 PMCID: PMC8804093 DOI: 10.3389/fnut.2021.772573] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 12/13/2021] [Indexed: 12/24/2022] Open
Abstract
Proteins are essential components of the human diet. Dietary proteins could be derived from animals and plants. Animal protein, although higher in demand, is generally considered less environmentally sustainable. Therefore, a gradual transition from animal- to plant-based protein food may be desirable to maintain environmental stability, ethical reasons, food affordability, greater food safety, fulfilling higher consumer demand, and combating of protein-energy malnutrition. Due to these reasons, plant-based proteins are steadily gaining popularity, and this upward trend is expected to continue for the next few decades. Plant proteins are a good source of many essential amino acids, vital macronutrients, and are sufficient to achieve complete protein nutrition. The main goal of this review is to provide an overview of plant-based protein that helps sustain a better life for humans and the nutritional quality of plant proteins. Therefore, the present review comprehensively explores the nutritional quality of the plant proteins, their cost-effective extraction and processing technologies, impacts on nutrition, different food wastes as an alternative source of plant protein, and their environmental impact. Furthermore, it focuses on the emerging technologies for improving plant proteins' bioavailability, digestibility, and organoleptic properties, and highlights the aforementioned technological challenges for future research work.
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Affiliation(s)
- Sapna Langyan
- Indian Council of Agricultural Research-National Bureau of Plant Genetic Resources, Pusa, New Delhi, India
| | - Pranjal Yadava
- Division of Plant Physiology, Indian Agricultural Research Institute, Pusa, New Delhi, India
| | | | - Zahoor A. Dar
- Dryland Agricultural Research Station, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Srinagar, India
| | - Renu Singh
- Division of Plant Physiology, Indian Agricultural Research Institute, Pusa, New Delhi, India
| | - Ashok Kumar
- Indian Council of Agricultural Research-National Bureau of Plant Genetic Resources, Pusa, New Delhi, India
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5
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Paoletti A, Fakiha A, Tul-Noor Z, Pencharz PB, Levesque CL, Ball RO, Kong D, Elango R, Courtney-Martin G. Bioavailable Lysine Assessed Using the Indicator Amino Acid Oxidation Method in Healthy Young Males is High when Sorghum is Cooked by a Moist Cooking Method. J Nutr 2021; 152:770-778. [PMID: 34871427 PMCID: PMC8891180 DOI: 10.1093/jn/nxab410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 06/04/2021] [Accepted: 12/01/2021] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Sorghum is the fifth most consumed cereal grain but limiting in the indispensable amino acid lysine. Complementing sorghum with lentils can improve the quality of sorghum-based diets. However, knowledge of lysine bioavailability in sorghum is lacking. OBJECTIVES The study objectives were to determine the bioavailability of lysine in sorghum and to assess the effect of complementation of sorghum and lentils in a mixed-meal format. METHODS We studied 5 healthy young men (≤30 years; BMI <25 kg/m2) in a repeated-measure design using the indicator amino acid oxidation (IAAO) method, with L-[1-13C] phenylalanine as the indicator. Each subject participated in 8 determinations in random order. On the reference diet, subjects received 4 amounts of L-lysine (5, 8, 12, and 15 mg. kg-1 . d-1) from a crystalline amino acid mixture patterned after egg protein. On the test diet, they received 3 levels of lysine (8.2, 12.5, and 15.7 mg. kg-1 . d-1) from sorghum, and on the complementation diet they received 1 level of lysine from a mixed meal of sorghum and lentils. The bioavailability of lysine in sorghum was estimated by comparing the IAAO response to the test diet with the IAAO response to the reference diet using the slope-ratio method. Effectiveness of complementation was assessed by comparing the IAAO response to the mixed meal to the IAAO response to the test protein. RESULTS The bioavailability of lysine from sorghum was 94%. Upon complementation with lentils, there was a decline in the oxidation of L-[1-13C] phenylalanine by 19% (P < 0.0495), reflecting an improvement in available lysine in the mixed meal due to increased lysine intake. CONCLUSIONS Although the bioavailability of lysine in sorghum is high, its lysine content is limiting. Complementation with lentils in a 1:1 ratio is recommended to achieve the lysine requirement for adult men consuming a sorghum-based diet. This trial was registered at clinicaltrials.gov as NCT03411005.
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Affiliation(s)
- Alyssa Paoletti
- Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Abrar Fakiha
- Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Zujaja Tul-Noor
- Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Paul B Pencharz
- Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada,Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada,Department of Paediatrics, University of Toronto, Toronto, Ontario, Canada,Department of Agricultural, Food and Nutritional Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Crystal L Levesque
- Department of Animal Science, South Dakota State University, Brookings, South Dakota, USA
| | - Ronald O Ball
- Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada,Department of Agricultural, Food and Nutritional Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Dehan Kong
- Department of Statistical Sciences, University of Toronto, Toronto, Ontario, Canada
| | - Rajavel Elango
- Department of Pediatrics, School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada,BC Children's Hospital Research Institute, BC Children's Hospital, Vancouver, BC, Canada
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6
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Bandyopadhyay S, Kashyap S, Calvez J, Devi S, Azzout-Marniche D, Tomé D, Kurpad AV, Gaudichon C. Evaluation of Protein Quality in Humans and Insights on Stable Isotope Approaches to Measure Digestibility - A Review. Adv Nutr 2021; 13:1131-1143. [PMID: 34755836 PMCID: PMC9340995 DOI: 10.1093/advances/nmab134] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 10/15/2021] [Accepted: 11/05/2021] [Indexed: 11/14/2022] Open
Abstract
The recent Food and Agricultural Organization/World Health Organization/United Nations University expert consultations on protein requirements and quality have emphasized the need for the new Digestible Indispensable Amino Acid Score (DIAAS), as a measure of protein quality. This requires human measurements of the true ileal digestibility of individual indispensable amino acids (IAAs) until the end of the small intestine. Digestibility is measured using standard oro-ileal balance methods, which can only be achieved by an invasive naso-ileal intubation in healthy participants or fistulation at the terminal ileum. Significant efforts have been made over the last 2 decades to develop noninvasive or minimally invasive methods to measure IAA digestibility in humans. The application of intrinsically labeled (with stable isotopes like 13C, 15N, and 2H) dietary proteins has helped in circumventing the invasive oro-ileal balance techniques and allowed the differentiation between endogenous and exogenous protein. The noninvasive indicator amino acid oxidation (IAAO) technique, which is routinely employed to measure IAA requirements, has been modified to estimate metabolic availability (a sum of digestibility and utilization) of IAA in foods, but provides an estimate for a single IAA at a time and is burdensome for participants. The recently developed minimally invasive dual isotope tracer method measures small intestinal digestibility of multiple amino acids at once and is suitable for use in vulnerable groups and disease conditions. However, it remains to be validated against standard oro-ileal balance techniques. This review critically evaluates and compares the currently available stable isotope-based protein quality evaluation methods with a focus on the digestibility and metabolic availability measurements in humans. In view of building a reliable DIAAS database of various protein sources and subsequently supporting protein content claims in food labeling, a re-evaluation and harmonization of the available methods are necessary.
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Affiliation(s)
- Sulagna Bandyopadhyay
- Division of Nutrition, St. John's Research Institute, St. John's National Academy of Health Sciences, Bangalore, India
| | - Sindhu Kashyap
- Division of Nutrition, St. John's Research Institute, St. John's National Academy of Health Sciences, Bangalore, India
| | - Juliane Calvez
- Université Paris-Saclay, AgroParisTech, INRAE (National Research Institute for Agriculture, Food, and Environment), UMR PNCA (Research Unit for Nutrition Physiology and Dietary Behavior), Paris, France
| | - Sarita Devi
- Division of Nutrition, St. John's Research Institute, St. John's National Academy of Health Sciences, Bangalore, India
| | - Dalila Azzout-Marniche
- Université Paris-Saclay, AgroParisTech, INRAE (National Research Institute for Agriculture, Food, and Environment), UMR PNCA (Research Unit for Nutrition Physiology and Dietary Behavior), Paris, France
| | - Daniel Tomé
- Université Paris-Saclay, AgroParisTech, INRAE (National Research Institute for Agriculture, Food, and Environment), UMR PNCA (Research Unit for Nutrition Physiology and Dietary Behavior), Paris, France
| | - Anura V Kurpad
- Division of Nutrition, St. John's Research Institute, St. John's National Academy of Health Sciences, Bangalore, India,Department of Physiology, St. John's Medical College, St. John's National Academy of Health Sciences, Bangalore, India
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7
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Said MY, Rodriguez-Niño A, Post A, Schutten JC, Kieneker LM, Gomes-Neto AW, van Londen M, Osté MC, Borgonjen-van den Berg KJ, Nolte IM, van den Berg E, de Blaauw P, van der Krogt J, Heiner-Fokkema MR, Navis G, Yard BA, Bakker SJ. Meat intake and risk of mortality and graft failure in kidney transplant recipients. Am J Clin Nutr 2021; 114:1505-1517. [PMID: 34091671 PMCID: PMC8488867 DOI: 10.1093/ajcn/nqab185] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 05/12/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND It is unknown whether meat intake is beneficial for long-term patient and graft survival in kidney transplant recipients (KTR). OBJECTIVES We first investigated the association of the previously described meat intake biomarkers 1-methylhistidine and 3-methylhistidine with intake of white and red meat as estimated from a validated food frequency questionnaire (FFQ). Second, we investigated the association of the meat intake biomarkers with long-term outcomes in KTR. METHODS We measured 24-h urinary excretion of 1-methylhistidine and 3-methylhistidine by validated assays in a cohort of 678 clinically stable KTR. Cross-sectional associations were assessed by linear regression. We used Cox regression analyses to prospectively study associations of log2-transformed biomarkers with mortality and graft failure. RESULTS Urinary 1-methylhistidine and 3-methylhistidine excretion values were median: 282; interquartile range (IQR): 132-598 µmol/24 h and median: 231; IQR: 175-306 µmol/24 h, respectively. Urinary 1-methylhistidine was associated with white meat intake [standardized β (st β): 0.20; 95% CI: 0.12, 0.28; P < 0.001], whereas urinary 3-methylhistidine was associated with red meat intake (st β: 0.30; 95% CI: 0.23, 0.38; P < 0.001). During median follow-up for 5.4 (IQR: 4.9-6.1) y, 145 (21%) died and 83 (12%) developed graft failure. Urinary 3-methylhistidine was inversely associated with mortality independently of potential confounders (HR per doubling: 0.55; 95% CI: 0.42, 0.72; P < 0.001). Both urinary 1-methylhistidine and urinary 3-methylhistidine were inversely associated with graft failure independent of potential confounders (HR per doubling: 0.84; 95% CI: 0.73, 0.96; P = 0.01; and 0.59; 95% CI: 0.41, 0.85; P = 0.004, respectively). CONCLUSIONS High urinary 3-methylhistidine, reflecting higher red meat intake, is independently associated with lower risk of mortality. High urinary concentrations of both 1- and 3-methylhistidine, of which the former reflects higher white meat intake, are independently associated with lower risk of graft failure in KTR. Future intervention studies are warranted to study the effect of high meat intake on mortality and graft failure in KTR, using these biomarkers.
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Affiliation(s)
- M Yusof Said
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Angelica Rodriguez-Niño
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- Vth Department of Medicine (Nephrology/Endocrinology/Rheumatology), University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany
| | - Adrian Post
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Joelle C Schutten
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Lyanne M Kieneker
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Antonio W Gomes-Neto
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Marco van Londen
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Maryse Cj Osté
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | | | - Ilja M Nolte
- Department of Epidemiology, University of Groningen, Groningen, The Netherlands
| | - Else van den Berg
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Pim de Blaauw
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Jennifer van der Krogt
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - M Rebecca Heiner-Fokkema
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Gerjan Navis
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- Groningen Kidney Center, Groningen, The Netherlands
| | - Benito A Yard
- Vth Department of Medicine (Nephrology/Endocrinology/Rheumatology), University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany
| | - Stephan Jl Bakker
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- Groningen Kidney Center, Groningen, The Netherlands
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8
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Caballero K, Mandal R, Pratap-Singh A, Kitts DD, Ball RO, Pencharz PB, Courtney-Martin G, Elango R. Lysine Bioavailability in School-Age Children Consuming Rice Is Reduced by Starch Retrogradation. J Nutr 2020; 150:3208-3215. [PMID: 33025006 DOI: 10.1093/jn/nxaa276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 07/07/2020] [Accepted: 08/17/2020] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Rice is one of the most commonly consumed cereal grains and is part of staple diets in the majority of the world. However, it is regarded as an incomplete protein, with lysine being a limiting amino acid. OBJECTIVES Our objectives were to determine the bioavailability of lysine in school-age children consuming cooked white rice and to assess the effect of rice starch retrogradation. METHODS Bioavailability or metabolic availability (MA) of lysine was determined using the indicator amino acid oxidation (IAAO) method in a repeated-measures design. Six healthy school-age children (3 boys, 3 girls) with a mean ± SD age of 6.8 ± 0.98 y randomly received 4 crystalline l-lysine intakes (2, 6, 10, 14 mg · kg-1 · d-1), and 5 rice intakes to provide lysine at 8, 11, or 14 mg · kg-1 · d-1. The 14 mg · kg-1 · d-1 intakes were measured twice as warm rice and once as cold rice (to assess the impact of starch retrogradation on MA). Diets provided protein at 1.5 g · kg-1 · d-1 and calories at 1.7 times the participant's measured resting energy requirement, and were isonitrogenous. Breath samples were collected at baseline and during an isotopic steady state for 13C enrichment measurement. The MA of lysine from rice was determined by comparing the IAAO response of rice with l-lysine using the slope-ratio and single intake methods. Starch retrogradation was characterized using differential scanning calorimetry. RESULTS MA of lysine in warm rice measured in school-age children was 97.5% and was similar to a repeated rice study (97.1%) within the same study population. MA of lysine was reduced significantly (P < 0.05) to 86.1% when the cooked rice was consumed cold, which corresponded to detectable starch retrogradation. CONCLUSIONS To our knowledge, this is the first study to measure the MA of lysine from rice in school-age children. Although the bioavailability of lysine from rice is high, it can be reduced by retrogradation of its starch component.This trial was registered at clinicaltrials.gov as NCT04135040.
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Affiliation(s)
- Katia Caballero
- Food, Nutrition, and Health, Faculty of Land and Food Systems, University of British Columbia, Vancouver, British Columbia, Canada.,BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada
| | - Ronit Mandal
- Food, Nutrition, and Health, Faculty of Land and Food Systems, University of British Columbia, Vancouver, British Columbia, Canada
| | - Anubhav Pratap-Singh
- Food, Nutrition, and Health, Faculty of Land and Food Systems, University of British Columbia, Vancouver, British Columbia, Canada
| | - David D Kitts
- Food, Nutrition, and Health, Faculty of Land and Food Systems, University of British Columbia, Vancouver, British Columbia, Canada
| | - Ronald O Ball
- Department of Agricultural, Food, and Nutritional Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Paul B Pencharz
- Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
| | | | - Rajavel Elango
- Food, Nutrition, and Health, Faculty of Land and Food Systems, University of British Columbia, Vancouver, British Columbia, Canada.,BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada.,Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada.,School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada
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9
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Nutrient-dense protein as a primary dietary strategy in healthy ageing: please sir, may we have more? Proc Nutr Soc 2020; 80:264-277. [PMID: 33050965 DOI: 10.1017/s0029665120007892] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A progressive decrement in muscle mass and muscle function, sarcopoenia, accompanies ageing. The loss of skeletal muscle mass and function is the main feature of sarcopoenia. Preventing the loss of muscle mass is relevant since sarcopoenia can have a significant impact on mobility and the quality of life of older people. Dietary protein and physical activity have an essential role in slowing muscle mass loss and helping to maintain muscle function. However, the current recommendations for daily protein ingestion for older persons appear to be too low and are in need of adjustment. In this review, we discuss the skeletal muscle response to protein ingestion, and review the data examining current dietary protein recommendations in the older subjects. Furthermore, we review the concept of protein quality and the important role that nutrient-dense protein (NDP) sources play in meeting overall nutrient requirements and improving dietary quality. Overall, the current evidence endorses an increase in the daily ingestion of protein with emphasis on the ingestion of NDP choices by older adults.
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Fakiha A, Tul-Noor Z, Paoletti A, Pencharz PB, Ball RO, Levesque CL, Elango R, Courtney-Martin G. Bioavailable Lysine, Assessed in Healthy Young Men Using Indicator Amino Acid Oxidation, is Greater when Cooked Millet and Stewed Canadian Lentils are Combined. J Nutr 2020; 150:2729-2737. [PMID: 32840580 DOI: 10.1093/jn/nxaa227] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 05/01/2020] [Accepted: 07/09/2020] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Pearl millet is the chief source of energy in the diet in some developing regions, but has a limited amount of indispensable amino acid lysine. Complementation with pulses like lentils can improve the protein quality of millet diets, but the knowledge of lysine bioavailability (BA) in millet and lentils is lacking. OBJECTIVES The study objectives were to determine the BA of lysine in millet and lentils separately and to assess the effect of complementation of millet and lentils in a mixed meal format. METHODS We studied 9 healthy young men (≤30 y; BMI <25) in a repeated-measure design using the indicator amino acid oxidation (IAAO) method, with L-[1-13C] phenylalanine as the indicator. Each subject completed 7 or 8 experiments in random order. On the reference diet, subjects received 4 graded levels of L-lysine (5, 8, 12, and 15 mg·kg-1.d-1) from a crystalline amino acid mixture patterned after egg protein; on the test diets, they received 3 levels of lysine (10, 12, and 15 mg·kg-1.d-1) from either steamed millet or stewed lentils; and on the complementation diet, they received 1 level of lysine from a mixed meal of steamed millet and stewed lentils. The BA of lysine and the effect of complementation were assessed by comparing the IAAO responses to the test diets and the complementation diet with the IAAO response to L-lysine intakes in the reference protein, using the slope ratio method. RESULTS The BA of lysine was 97% from millet and 80% from lentils. Complementation of steamed millet with stewed lentils decreased the oxidation of L-[1-13C] phenylalanine by 27% (P < 0.05), signifying improved quality of the combined millet and lentil protein. CONCLUSIONS Lysine has high BA but is still limiting in steamed pearl millet. Complementation with lentils in a 2:1 ratio is recommended to meet the lysine and protein requirements for adult men consuming a millet-based diet. This trial was registered at clinicaltrials.gov as NCT03674736 and NCT03339167.
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Affiliation(s)
- Abrar Fakiha
- Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Zujaja Tul-Noor
- Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Alyssa Paoletti
- Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Paul B Pencharz
- Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada.,Departments of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada.,Department of Paediatrics, University of Toronto, Toronto, Ontario, Canada.,Department of Agriculture, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada
| | - Ronald O Ball
- Departments of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada.,Department of Agriculture, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada
| | - Crystal L Levesque
- Department of Animal Science, South Dakota State University, Brookings, SD, USA
| | - Rajavel Elango
- Department of Pediatrics, School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada.,Research Institute, British Columbia Children's Hospital, Vancouver, British Columbia, Canada
| | - Glenda Courtney-Martin
- Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada.,Departments of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada.,Kinesiology & Physical Education, University of Toronto, Toronto, Ontario, Canada
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11
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Elango R. Methionine Nutrition and Metabolism: Insights from Animal Studies to Inform Human Nutrition. J Nutr 2020; 150:2518S-2523S. [PMID: 33000159 DOI: 10.1093/jn/nxaa155] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 04/16/2020] [Accepted: 05/08/2020] [Indexed: 12/18/2022] Open
Abstract
Methionine is a nutritionally indispensable amino acid, and is unique among indispensable amino acids due to its sulfur atom. Methionine is involved in cysteine synthesis via the transsulfuration pathway, which is rate limiting for the key antioxidant molecule, glutathione. Methionine is also the primary methyl donor in the body through S-adenosylmethionine via the transmethylation pathway, which is involved in the synthesis of several key metabolites including creatine and phosphatidylcholine. Methionine can also be remethylated from homocysteine, in the presence of betaine via choline and/or folate. Thus methionine demands from a dietary perspective are regulated not only by the presence of cysteine in the body, but also by the demands in vivo for the various metabolites formed from it, and also by the presence of these compounds in foods. Indeed, methionine, cysteine, and the various methyl donors/acceptors vary in human foods, and thus regulate methionine availability, especially under conditions of growth and development. Much of our understanding of methionine nutrition and metabolism arises from experiments in animal models. This is because most animal feed formulations are plant-based and plant sources are relatively low in methionine and cysteine amounts. Thus, this brief review will touch on some broad aspects of human methionine nutrition, including requirements in different life stages, disease, and bioavailability, with some examples from the insights/lessons learned from experiments initially conducted in animals.
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Affiliation(s)
- Rajavel Elango
- BC Children's Hospital Research Institute, BC Children's Hospital, Vancouver, British Columbia, Canada; and the Department of Pediatrics, and School of Population and Public Health, University of British Columbia, British Columbia, Canada
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12
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Protein fractions, in vitro protein digestibility and amino acid composition of select cowpea varieties grown in Ethiopia. FOOD BIOSCI 2020. [DOI: 10.1016/j.fbio.2020.100634] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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13
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Rafii M, Pencharz PB, Ball RO, Tomlinson C, Elango R, Courtney-Martin G. Bioavailable Methionine Assessed Using the Indicator Amino Acid Oxidation Method Is Greater When Cooked Chickpeas and Steamed Rice Are Combined in Healthy Young Men. J Nutr 2020; 150:1834-1844. [PMID: 32271919 DOI: 10.1093/jn/nxaa086] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 02/19/2020] [Accepted: 03/10/2020] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND In general, pulse protein is limiting in the indispensable amino acid methionine, and antinutritional factors in pulses can affect methionine bioavailability. Complementation with grains such as rice can improve pulse protein quality, but knowledge of methionine bioavailability in pulses and grains is necessary to correct for available methionine when planning and assessing dietary protein intake. OBJECTIVES The study objectives were to determine the bioavailability of methionine in rice and chickpeas separately and to assess the effect of complementation of chickpeas and rice. METHODS Eleven healthy young men (<30 y, BMI <25 kg/m2) were studied in a repeated-measures design using the indicator amino acid oxidation (IAAO) method, with l-[1-13C]phenylalanine as the indicator. Each received 7 or 10 methionine intakes in random order: 4 intakes of l-methionine-0.5, 1, 2, and 3 mg⋅kg-1⋅d-1 (reference diet); 3 intakes of methionine from rice and from chickpeas; and 3 intakes from the mixed meal of chickpeas plus rice (test diets). The bioavailability of methionine and the effect of complementation were assessed by comparing the IAAO response to varying intakes of methionine in rice, in cooked Canadian chickpeas, and in rice plus chickpeas combined compared with the IAAO response to l-methionine intakes in the reference protein (crystalline amino acid mixture patterned after egg protein) using the slope ratio method. RESULTS The bioavailability of methionine from rice and from chickpeas was 100% and 63%, respectively. Complementation of cooked chickpeas with rice decreased the oxidation of l-[1-13C]phenylalanine by up to 14% (P < 0.05), suggesting an improved protein quality of the combined chickpeas plus rice protein. CONCLUSIONS When chickpeas are the main protein source in the diet of young adult men, the combination of rice and chickpeas in a 3:1 ratio is recommended to improve dietary protein quality. This trial was registered at clinicaltrials.gov as NCT03339154 and NCT03674736.
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Affiliation(s)
- Mahroukh Rafii
- Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Paul B Pencharz
- Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada.,Department of Paediatrics, University of Toronto, Toronto, Ontario, Canada
| | - Ronald O Ball
- Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada.,Department of Agriculture, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada
| | - Christopher Tomlinson
- Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada.,Department of Paediatrics, University of Toronto, Toronto, Ontario, Canada
| | - Rajavel Elango
- Department of Pediatrics, School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada.,BC Children's Hospital Research Institute, BC Children's Hospital, Vancouver, British Columbia, Canada
| | - Glenda Courtney-Martin
- Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada.,Faculty of Kinesiology & Physical Education, University of Toronto, Toronto, Ontario, Canada
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14
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Sutherland KAK, Mansilla WD, Fortener L, Shoveller AK. Lysine requirements in small, medium, and large breed adult dogs using the indicator amino acid oxidation technique. Transl Anim Sci 2020; 4:txaa082. [PMID: 32734145 PMCID: PMC7381836 DOI: 10.1093/tas/txaa082] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 06/11/2020] [Indexed: 11/12/2022] Open
Abstract
There is a lack of knowledge regarding the lysine (Lys) requirements of mature dogs and whether there are breed differences. The present study aimed to determine the Lys requirement in three breeds of mature dogs using the indicator amino acid oxidation (IAAO) technique. Thirteen adult dogs were used, four Miniature Dachshunds (5.39 ± 0.71 kg; 1.05 ± 0.02 yr old, mean ± SD), four Beagles (8.09 ± 0.40 kg; 5.03 ± 0.09 yr old, mean ± SD), and five Labrador Retrievers (29.42 ± 2.04 kg; 3.30 ± 0.69 yr old, mean ± SD). After 14 d of adaptation to a basal extruded kibble diet, dogs were fed a test diet mildly deficient in Lys (Lys concentration = 0.36%) at 17 (Miniature Dachshunds) or 13 g/kg body weight (BW; Beagles and Labradors) for 2 d. The test diet was supplemented with one of seven isonitrogenous Lys-Ala solutions, resulting in a final dietary Lys concentration of 0.36%, 0.40%, 0.44%, 0.50%, 0.54%, 0.58%, and 0.62% (as-fed basis). Dogs received dietary concentrations of Lys in random order and no dog received the same order. Following 2 d of adaptation to the experimental diets, the dogs underwent IAAO studies. During the IAAO studies, total daily feed was divided in 13 equal meals. At the sixth meal, dogs were fed a bolus of L-[1-13C]-Phe (9.40 mg/kg BW); thereafter, L-[1-13C]-Phe was supplied with every meal (2.4 mg/kg BW). Total production of 13CO2 (F13CO2) during isotopic steady state was determined by enrichment of 13CO2 of breath samples and total production of CO2, measured using indirect calorimetry. A two-phase linear regression model was used to derive the mean Lys requirement, defined as the breakpoint, and the upper 95% confidence limit was calculated as the recommended allowance (RA) for Lys intake. For Miniature Dachshunds, the study was repeated with a feed intake of 14 g/kg BW, but Lys requirements could not be determined at either feed intake, suggesting a requirement below the lowest concentration and intake. Mean Lys requirements for Beagles and Labradors were 0.455% (59.16 mg/kg BW) and 0.440% (57.19 mg/kg BW), respectively, on a dry matter basis. Pooling the data for these breeds provides a mean estimate of the Lys requirement at 0.448% (58.21 mg/kg BW) with an upper 95% CL of 0.526% (68.41 mg/kg BW) on a dry matter basis. In conclusion, the Lys requirements of Beagles and Labradors are similar, while the requirement for Miniature Dachshunds is undetermined and likely lower. The estimated Lys requirement for Beagles and Labradors is higher than the National Research Council recommendation.
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Affiliation(s)
| | - Wilfredo D Mansilla
- Department of Animal Biosciences, University of Guelph, Guelph, Ontario, Canada
| | | | - Anna K Shoveller
- Department of Animal Biosciences, University of Guelph, Guelph, Ontario, Canada.,Procter and Gamble Co., Pet Care, Mason, OH
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15
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Said MY, Post A, Minović I, van Londen M, van Goor H, Postmus D, Heiner-Fokkema MR, van den Berg E, Pasch A, Navis G, Bakker SJL. Urinary sulfate excretion and risk of late graft failure in renal transplant recipients - a prospective cohort study. Transpl Int 2020; 33:752-761. [PMID: 32112582 PMCID: PMC7383851 DOI: 10.1111/tri.13600] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 11/29/2019] [Accepted: 02/24/2020] [Indexed: 12/18/2022]
Abstract
Hydrogen sulfide (H2S), produced from metabolism of dietary sulfur‐containing amino acids, is allegedly a renoprotective compound. Twenty‐four‐hour urinary sulfate excretion (USE) may reflect H2S bioavailability. We aimed to investigate the association of USE with graft failure in a large prospective cohort of renal transplant recipients (RTR). We included 704 stable RTR, recruited at least 1 year after transplantation. We applied log‐rank testing and Cox regression analyses to study association of USE, measured from baseline 24 h urine samples, with graft failure. Median age was 55 [45–63] years (57% male, eGFR was 45 ± 19 ml/min/1.73 m2). Median USE was 17.1 [13.1–21.1] mmol/24 h. Over median follow‐up of 5.3 [4.5–6.0] years, 84 RTR experienced graft failure. RTR in the lowest sex‐specific tertile of USE experienced a higher rate of graft failure during follow‐up than RTR in the middle and highest sex‐specific tertiles (18%, 13%, and 5%, respectively, log‐rank P < 0.001). In Cox regression analyses, USE was inversely associated with graft failure [HR per 10 mmol/24 h: 0.37 (0.24–0.55), P < 0.001]. The association remained independent of adjustment for potential confounders, including age, sex, eGFR, proteinuria, time between transplantation and baseline, BMI, smoking, and high sensitivity C‐reactive protein [HR per 10 mmol/24 h: 0.51 (0.31–0.82), P = 0.01]. In conclusion, this study demonstrates a significant inverse association of USE with graft failure in RTR, suggesting high H2S bioavailability as a novel, potentially modifiable factor for prevention of graft failure in RTR.
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Affiliation(s)
- M Yusof Said
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Adrian Post
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Isidor Minović
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Marco van Londen
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Harry van Goor
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Douwe Postmus
- Department of Epidemiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - M Rebecca Heiner-Fokkema
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Else van den Berg
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Andreas Pasch
- Department of Biomedical Research, University of Bern, Bern, Switzerland
| | - Gerjan Navis
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Stephan J L Bakker
- Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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16
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The impact of prenatal environment on postnatal life and performance: Future perspectives for prevention and treatment. Theriogenology 2020; 150:15-19. [PMID: 31983467 DOI: 10.1016/j.theriogenology.2020.01.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 01/13/2020] [Indexed: 12/16/2022]
Abstract
The present review aims to offer a non-comprehensive outline of the current state-of-the-art and future perspectives on management and therapeutic tools for intrauterine growth restriction (IUGR) and associated prenatal programming in both human and animal species. Animals are used as models for the study of phenomena related to IUGR, but also for research on prenatal therapies with the main objective of designing and developing preventive and therapeutic strategies. The research is currently paying attention on maternal-focused pharmacological treatments and nutritional strategies but also on fetal-focused treatments. Fetal-focused treatments, administered either directly at the fetus or by using infusion of umbilical cord, amniotic sac or placenta, which avoids the administration of substances at high doses to the mother for allowing their availability at the fetoplacental level. The results obtained in this area of research using large animals (rabbits, pigs and ruminants) have a dual interest, for translational biomedicine and for veterinary medicine and animal production.
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17
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Moughan PJ, Wolfe RR. Determination of Dietary Amino Acid Digestibility in Humans. J Nutr 2019; 149:2101-2109. [PMID: 31529051 DOI: 10.1093/jn/nxz211] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 04/18/2019] [Accepted: 07/31/2019] [Indexed: 11/13/2022] Open
Abstract
Dietary amino acid digestibility is a fundamental measure of importance in protein quality evaluation. Determining amino acid digestibility in humans, as the disappearance of an amino acid across the total digestive tract, has been discredited. Extensive cecal and colonic microbial metabolism renders fecal estimates of amino acids misleading. True ileal amino acid digestibility determined at the end of the small intestine predicts amino acid uptake more accurately. Given that ileal digestibility determination cannot be undertaken routinely in humans, a pig-based assay has been developed and validated. The growing pig values for digestibility, however, relate to healthy adult humans and there is a need to be able to determine amino acid digestibility for humans with specific physiological states. To this end, isotope-based methods for determining dietary amino acid digestibility indirectly show promise but remain to be fully validated.
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Affiliation(s)
| | - Robert R Wolfe
- Department of Geriatrics, Reynolds Institute on Aging, University of Arkansas for Medical Science, Little Rock, AR, USA
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18
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Bessada SM, Barreira JC, Oliveira MBP. Pulses and food security: Dietary protein, digestibility, bioactive and functional properties. Trends Food Sci Technol 2019. [DOI: 10.1016/j.tifs.2019.08.022] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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19
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Tomé D. Editorial on "Measurement of protein digestibility in humans by a dual tracer method"-a key limiting factor of protein quality. Am J Clin Nutr 2018; 107:855-856. [PMID: 29868917 DOI: 10.1093/ajcn/nqy109] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Daniel Tomé
- Mixed research unit Nutrition Physiology and Ingestive Behavior (UMR PNCA), AgroParisTech, French National Institute for Agricultural Research (INRA), University of Paris-Saclay, Paris, France
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20
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Devi S, Varkey A, Sheshshayee MS, Preston T, Kurpad AV. Measurement of protein digestibility in humans by a dual-tracer method. Am J Clin Nutr 2018; 107:984-991. [PMID: 29771297 PMCID: PMC6179135 DOI: 10.1093/ajcn/nqy062] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 03/14/2018] [Indexed: 01/04/2023] Open
Abstract
Background Recent evaluations of the risk of dietary protein deficiency have indicated that protein digestibility may be a key limiting factor in the provision of indispensable amino acids (IAAs), particularly for vulnerable populations living in challenging environments where intestinal dysfunction may exist. Since the digestion of protein occurs only in the small intestine, and the metabolic activity of colonic bacteria confounds measurements at the fecal level, there is a need to develop noninvasive protein digestibility measurements at the ileal level. Objective We used a dual-tracer method with stable isotopes to characterize the digestibility of uniformly labeled [13C]-spirulina protein as a standard protein, in comparison to a mixture of 2H-labeled crystalline amino acids, and then demonstrated the use of this standard protein to measure the digestibility of selected legumes (chick pea and mung bean) through the use of proteins that were intrinsically labeled with 2H. Design The digestibility of uniformly labeled [13C]-spirulina was first measured in 6 healthy volunteers (3 males and 3 females) by feeding it along with a standard mixture of 2H-labeled amino acids, in a dual-tracer, plateau-fed test meal approach. Next, intrinsically labeled legume protein digestibility was studied with a similar dual-tracer approach, with uniformly labeled [13C]-spirulina as the standard, when processed differently before consumption. Results The average digestibility of IAA in spirulina protein was 85.2%. The average IAA digestibility of intrinsically 2H-labeled chick pea and mung bean protein was 56.6% and 57.7%, respectively. Dehulling of mung bean before ingestion increased the average IAA digestibility by 9.9% in comparison to whole mung bean digestibility. Conclusions An innovative, minimally invasive "dual-stable-isotope" method was developed to measure protein digestibility, in which the ingestion of an intrinsically 2H-labeled test protein along with a 13C-labeled standard protein of known digestibility allows for an accurate measure of digestion and absorption of the intrinsically labeled protein. This minimally invasive method is critical to redefining protein quality and will aid in revisiting human protein requirements in different settings and in vulnerable populations. This trial was registered at Clinical Trials Registry-India as CTRI/2017/11/010468.
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Affiliation(s)
- Sarita Devi
- Division of Nutrition, St John's Research Institute, St John's National Academy of Health Sciences, Bangalore, India
| | - Aneesia Varkey
- Division of Nutrition, St John's Research Institute, St John's National Academy of Health Sciences, Bangalore, India
| | - M S Sheshshayee
- Department of Crop Physiology, University of Agricultural Sciences, Bangalore, India
| | - Thomas Preston
- Scottish Universities Environmental Research Centre, East Kilbride, United Kingdom
| | - Anura V Kurpad
- Department of Physiology, St John's Research Institute, St John's National Academy of Health Sciences, Bangalore, India
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21
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Rafii M, Elango R, Ball RO, Pencharz PB, Courtney-Martin G. Metabolic Availability of the Limiting Amino Acids Lysine and Tryptophan in Cooked White African Cornmeal Assessed in Healthy Young Men Using the Indicator Amino Acid Oxidation Technique. J Nutr 2018; 148:917-924. [PMID: 29741697 DOI: 10.1093/jn/nxy039] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 02/09/2018] [Indexed: 11/13/2022] Open
Abstract
Background Maize is a staple food in many regions of the world, particularly in Africa and Latin America. However, maize protein is limiting in the indispensable amino acids lysine and tryptophan, making its protein of poor quality. Objective The main objective of this study was to determine the protein quality of white African cornmeal by determining the metabolic availability (MA) of lysine and tryptophan. Methods To determine the MA of lysine, 4 amounts of l-lysine (10, 13, 16, and 18 mg · kg-1 · d-1 totaling 28.6%, 37.1%, 45.7%, and 51.4% of the mean lysine requirement of 35 mg · kg-1 · d-1, respectively) were studied in 6 healthy young men in a repeated-measures design. To determine the MA of tryptophan, 4 amounts of l-tryptophan (0.5, 1, 1.5, and 2 mg · kg-1 · d-1 totaling 12.5%, 25.0%, 37.5%, and 50.0% of the mean tryptophan requirement of 4 mg · kg-1 · d-1, respectively) were studied in 7 healthy young men in a repeated-measures design. The MAs of lysine and tryptophan were estimated by comparing the indicator amino acid oxidation (IAAO) response with varying intakes of lysine and tryptophan in cooked white cornmeal compared with the IAAO response to l-lysine and l-tryptophan intakes in the reference protein (crystalline amino acid mixture patterned after egg protein) with the use of the slope ratio method. Results The MAs of lysine and tryptophan from African cooked white cornmeal were 71% and 80%, respectively. Conclusion Our study provides a robust estimate of the availability of lysine and tryptophan in African white maize to healthy young men. This estimate provides a basis for postproduction fortification or supplementation of maize-based diets. This trial was registered at www.clinicaltrials.gov as NCT02402179.
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Affiliation(s)
- Mahroukh Rafii
- Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Rajavel Elango
- Department of Pediatrics, School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada.,BC Children's Hospital Research Institute, BC Children's Hospital, Vancouver, British Columbia, Canada
| | - Ronald O Ball
- Departments of Nutritional Sciences and Pediatrics, and Faculty of Kinesiology and Physical Education, University of Toronto, Toronto, Ontario, Canada.,Department of Agriculture, Food, and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada
| | - Paul B Pencharz
- Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada.,Departments of Nutritional Sciences and Pediatrics, and Faculty of Kinesiology and Physical Education, University of Toronto, Toronto, Ontario, Canada.,Departments of Pediatrics, and Faculty of Kinesiology and Physical Education, University of Toronto, Toronto, Ontario, Canada.,Department of Agriculture, Food, and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada
| | - Glenda Courtney-Martin
- Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada.,Departments of Nutritional Sciences and Pediatrics, and Faculty of Kinesiology and Physical Education, University of Toronto, Toronto, Ontario, Canada.,Departments of Faculty of Kinesiology and Physical Education, University of Toronto, Toronto, Ontario, Canada
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22
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Butler RN, Kosek M, Krebs NF, Loechl CU, Loy A, Owino VO, Zimmermann MB, Morrison DJ. Stable Isotope Techniques for the Assessment of Host and Microbiota Response During Gastrointestinal Dysfunction. J Pediatr Gastroenterol Nutr 2017; 64:8-14. [PMID: 27632432 PMCID: PMC5214897 DOI: 10.1097/mpg.0000000000001373] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The International Atomic Energy Agency convened a technical meeting on environmental enteric dysfunction (EED) in Vienna (October 28-30, 2015; https://nucleus.iaea.org/HHW/Nutrition/EED_Technical_Meeting/index.html) to bring together international experts in the fields of EED, nutrition, and stable isotope technologies. Advances in stable isotope-labeling techniques open up new possibilities to improve our understanding of gastrointestinal dysfunction and the role of the microbiota in host health. In the context of EED, little is known about the role gut dysfunction may play in macro- and micronutrient bioavailability and requirements and what the consequences may be for nutritional status and linear growth. Stable isotope labeling techniques have been used to assess intestinal mucosal injury and barrier function, carbohydrate digestion and fermentation, protein-derived amino acid bioavailability and requirements, micronutrient bioavailability and to track microbe-microbe and microbe-host interactions at the single cell level. The noninvasive nature of stable isotope technologies potentially allow for low-hazard, field-deployable tests of gut dysfunction that are applicable across all age groups. The purpose of this review is to assess the state-of-the-art use of stable isotope technologies and to provide a perspective on where these technologies can be exploited to further our understanding of gut dysfunction in EED.
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Affiliation(s)
- Ross N Butler
- *School of Pharmacy and Medical Sciences, Division of Health Sciences, University of South Australia, Adelaide, Australia †Bloomberg School of Public Health, John Hopkins University, Baltimore, MD ‡Department of Pediatrics, School of Medicine, University of Colorado, Aurora §Nutrition and Health-Related Environmental Studies Section, Division of Human Health, International Atomic Energy Agency ||Division of Microbial Ecology, Department of Microbial and Ecosystem Science, Research Network Chemistry meets Microbiology, University of Vienna, Vienna, Austria ¶Institute of Food, Nutrition and Health, Department of Health Sciences and Technology, ETH Zürich, Zurich, Switzerland #Scottish Universities Environmental Research Centre, University of Glasgow, East Kilbride, Scotland, UK
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Lee WT, Weisell R, Albert J, Tomé D, Kurpad AV, Uauy R. Research Approaches and Methods for Evaluating the Protein Quality of Human Foods Proposed by an FAO Expert Working Group in 2014. J Nutr 2016; 146:929-32. [PMID: 27052532 DOI: 10.3945/jn.115.222109] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Accepted: 02/17/2016] [Indexed: 11/14/2022] Open
Abstract
The Protein Digestibility Corrected Amino Acid Score (PDCAAS) has been adopted for assessing protein quality in human foods since 1991, and the shortcomings of using the PDCAAS have been recognized since its adoption. The 2011 FAO Expert Consultation recognized that the Digestible Indispensable Amino Acid Score (DIAAS) was superior to the PDCAAS for determining protein quality. However, there were insufficient human data on amino acid digestibility before adopting the DIAAS. More human data were needed before DIAAS could be implemented. In 2014, FAO convened an expert working group to propose and agree on research protocols using both human-based assays and animal models to study ileal amino acid digestibility (metabolic availability) of human foods. The working group identified 5 research protocols for further research and development. A robust database of protein digestibility of foods commonly consumed worldwide, including those consumed in low-income countries, is needed for an informed decision on adopting the DIAAS. A review on the impacts of using the DIAAS on public health policies is necessary. It would be advantageous to have a global coordinating effort to advance research and data collection. Collaboration with international and national agriculture institutes is desirable. Opportunities should be provided for young researchers, particularly those from developing countries, to engage in protein-quality research for sustainable implementation of DIAAS. To conclude, the DIAAS is a conceptually preferable method compared with the PDCAAS for protein and amino acid quality evaluation. However, the complete value of the DIAAS and its impact on public health nutrition cannot be realized until there are sufficient accumulated ileal amino acid digestibility data on human foods that are consumed in different nutritional and environmental conditions, measured by competent authorities. A future meeting may be needed to evaluate the size and quality of the data set and to determine the timeline for full adoption and implementation of the DIAAS.
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Affiliation(s)
- Warren Tk Lee
- Nutrition Division, Food and Agriculture Organization of the United Nations, Rome, Italy;
| | - Robert Weisell
- Nutrition Division, Food and Agriculture Organization of the United Nations, Rome, Italy
| | - Janice Albert
- Nutrition Division, Food and Agriculture Organization of the United Nations, Rome, Italy
| | | | | | - Ricardo Uauy
- London School of Hygiene and Tropical Medicine, London, United Kingdom
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Pencharz PB, Elango R, Wolfe RR. Recent developments in understanding protein needs - How much and what kind should we eat? Appl Physiol Nutr Metab 2016; 41:577-80. [PMID: 27109436 DOI: 10.1139/apnm-2015-0549] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A novel method has been developed to determine protein requirements, which is called indicator amino acid oxidation (IAAO). This technique has been validated by comparison with the "gold standard" nitrogen balance. Using IAAO we have shown that minimum protein requirements have been underestimated by 30%-50%. The National Academy of Sciences has for macro-nutrients proposed "Acceptable Macronutrient Distribution Ranges", which for protein is 10% to 35% of total energy. In practice, we suggest 1.5-2.2 g/(kg·day) of a variety of high-quality proteins.
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Affiliation(s)
- Paul B Pencharz
- a Research Institute, The Hospital for Sick Children, 555 University Avenue, Toronto, ON M5G 1X8, Canada.,b Department of Paediatrics and Nutritional Sciences, University of Toronto, Toronto, ON M5G 1X8, Canada
| | - Rajavel Elango
- c Department of Pediatrics, University of British Columbia, Vancouver, BC V6T 1Z9, Canada.,d School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada.,e Child and Family Research Institute, BC Children's Hospital, Room 170A, 950 West 28th Avenue, Vancouver, BC V5Z 4H4, Canada
| | - Robert R Wolfe
- f Department of Geriatrics, Center for Translational Research in Aging and Longevity, Reynolds Institute on Aging, University of Arkansas for Medical Sciences, 4301 W Markham Street, #806, Little Rock, AR 72205, USA
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Tomé D, Jahoor F, Kurpad A, Michaelsen KF, Pencharz P, Slater C, Weisell R. Current issues in determining dietary protein quality and metabolic utilization. Eur J Clin Nutr 2014; 68:537-8. [PMID: 24801502 DOI: 10.1038/ejcn.2014.55] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- D Tomé
- AgroParisTech, UMR0914 Nutrition Physiology and Ingestive Behavior, Paris, France
| | - F Jahoor
- Children's Nutrition Research Center (CNRC), Agricultural Research Service (ARS), US Department of Agriculture (USDA), Houston, TX, USA
| | - A Kurpad
- St. John's National Academy of Health Sciences, St. John's Medical College, Bangalore, Karnataka, India
| | - K F Michaelsen
- Faculty of Science, Department of Nutrition, Exercise and Sports, University of Copenhagen, Frederiksberg C, Denmark
| | - P Pencharz
- University of Toronto, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - C Slater
- IAEA, Nutritional and Health-related Environmental Studies Section, Division of Human Health, Vienna, Austria
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Bordoni A, Laghi L, Babini E, Di Nunzio M, Picone G, Ciampa A, Valli V, Danesi F, Capozzi F. The foodomics approach for the evaluation of protein bioaccessibility in processed meat upon in vitro digestion. Electrophoresis 2014; 35:1607-14. [DOI: 10.1002/elps.201300579] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2013] [Revised: 12/17/2013] [Accepted: 12/18/2013] [Indexed: 11/06/2022]
Affiliation(s)
- Alessandra Bordoni
- Department of Agri-Food Sciences & Technologies; Alma Mater Studiorum, University of Bologna; Cesena (FC) Italy
| | - Luca Laghi
- Department of Agri-Food Sciences & Technologies; Alma Mater Studiorum, University of Bologna; Cesena (FC) Italy
| | - Elena Babini
- Department of Agri-Food Sciences & Technologies; Alma Mater Studiorum, University of Bologna; Cesena (FC) Italy
| | - Mattia Di Nunzio
- Interdepartmental Centre for Industrial Agri-Food Research; University of Bologna; Cesena (FC) Italy
| | - Gianfranco Picone
- Department of Agri-Food Sciences & Technologies; Alma Mater Studiorum, University of Bologna; Cesena (FC) Italy
| | - Alessandra Ciampa
- Department of Agri-Food Sciences & Technologies; Alma Mater Studiorum, University of Bologna; Cesena (FC) Italy
| | - Veronica Valli
- Department of Agri-Food Sciences & Technologies; Alma Mater Studiorum, University of Bologna; Cesena (FC) Italy
| | - Francesca Danesi
- Department of Agri-Food Sciences & Technologies; Alma Mater Studiorum, University of Bologna; Cesena (FC) Italy
| | - Francesco Capozzi
- Department of Agri-Food Sciences & Technologies; Alma Mater Studiorum, University of Bologna; Cesena (FC) Italy
- Centre of Magnetic Resonance; University of Florence; Sesto Fiorentino (FI) Italy
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Picariello G, Mamone G, Nitride C, Addeo F, Ferranti P. Protein digestomics: Integrated platforms to study food-protein digestion and derived functional and active peptides. Trends Analyt Chem 2013. [DOI: 10.1016/j.trac.2013.08.001] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Prolla IRD, Rafii M, Courtney-Martin G, Elango R, da Silva LP, Ball RO, Pencharz PB. Lysine from cooked white rice consumed by healthy young men is highly metabolically available when assessed using the indicator amino acid oxidation technique. J Nutr 2013; 143:302-6. [PMID: 23325920 DOI: 10.3945/jn.112.166728] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Cooked white rice (CWR) provides up to 71% of the dietary protein for many people worldwide. The protein digestibility-corrected amino acid (AA) score is the method adopted by FAO/WHO to evaluate protein quality. Our group has proposed the metabolic availability (MA) of AAs as another determinant of protein quality. It measures the percentage of an indispensable AA that is incorporated during protein synthesis. This study is the first to our knowledge to assess the MA of l-lysine (L-Lys) from CWR in humans using the indicator AA oxidation (IAAO) technique. Three amounts of L-Lys, 10, 15, and 19 mg · kg(-1) · d(-1) (= 28.5, 42.8, and 54.3% of the mean L-Lys requirement of 35 mg · kg(-1) · d(-1)), were studied in 5 healthy young men in a repeated-measures design. To test the principle that the Maillard reaction has an effect on the MA of LLys, we also assessed the MA of L-Lys in oven-browned, cooked rice (n = 3) in the amount of 19 mg · kg(-1) · d(-1) L-Lys. The MA of L-Lys was estimated by comparing the IAAO response with varying L-Lys intakes in rice compared with the IAAO response to varying l-Lys intakes in the reference protein (crystalline AA mixture patterned after egg protein) using the slope ratio method. The MA of L-Lys from CWR was high (97%), but the effect of the Maillard reaction reduced it to 70%. The results show that despite its relatively low content in rice, L-Lys has a high MA when the rice is cooked without being browned.
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Affiliation(s)
- Ivo R D Prolla
- Department of Pediatrics, Federal University of Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
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