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Berkner MO, Weise S, Reif JC, Schulthess AW. Genomic prediction reveals unexplored variation in grain protein and lysine content across a vast winter wheat genebank collection. FRONTIERS IN PLANT SCIENCE 2024; 14:1270298. [PMID: 38273944 PMCID: PMC10808176 DOI: 10.3389/fpls.2023.1270298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 10/31/2023] [Indexed: 01/27/2024]
Abstract
Globally, wheat (Triticum aestivum L.) is a major source of proteins in human nutrition despite its unbalanced amino acid composition. The low lysine content in the protein fraction of wheat can lead to protein-energy-malnutrition prominently in developing countries. A promising strategy to overcome this problem is to breed varieties which combine high protein content with high lysine content. Nevertheless, this requires the incorporation of yet undefined donor genotypes into pre-breeding programs. Genebank collections are suspected to harbor the needed genetic diversity. In the 1970s, a large-scale screening of protein traits was conducted for the wheat genebank collection in Gatersleben; however, this data has been poorly mined so far. In the present study, a large historical dataset on protein content and lysine content of 4,971 accessions was curated, strictly corrected for outliers as well as for unreplicated data and consolidated as the corresponding adjusted entry means. Four genomic prediction approaches were compared based on the ability to accurately predict the traits of interest. High-quality phenotypic data of 558 accessions was leveraged by engaging the best performing prediction model, namely EG-BLUP. Finally, this publication incorporates predicted phenotypes of 7,651 accessions of the winter wheat collection. Five accessions were proposed as donor genotypes due to the combination of outstanding high protein content as well as lysine content. Further investigation of the passport data suggested an association of the adjusted lysine content with the elevation of the collecting site. This publicly available information can facilitate future pre-breeding activities.
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Affiliation(s)
- Marcel O. Berkner
- Breeding Research Department, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, Seeland, Germany
| | - Stephan Weise
- Genebank Department, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, Seeland, Germany
| | - Jochen C. Reif
- Breeding Research Department, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, Seeland, Germany
| | - Albert W. Schulthess
- Breeding Research Department, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben, Seeland, Germany
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2
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Khalid W, Ali A, Arshad MS, Afzal F, Akram R, Siddeeg A, Kousar S, Rahim MA, Aziz A, Maqbool Z, Saeed A. Nutrients and bioactive compounds of Sorghum bicolor L. used to prepare functional foods: a review on the efficacy against different chronic disorders. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2022. [DOI: 10.1080/10942912.2022.2071293] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Waseem Khalid
- Department of Food Science, Government College University, Faisalabad, Pakistan
| | - Anwar Ali
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, China
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Xiangya School of Public Health, Central South University, China
- Food and Nutrition Society, Gilgit Baltistan, Pakistan
| | | | - Fareed Afzal
- Department of Food Science, Government College University, Faisalabad, Pakistan
| | - Ramish Akram
- Department of Rehabilitation Sciences, The University of Faisalabad, Pakistan
| | - Azhari Siddeeg
- Department of Food Engineering and Technology, Faculty of Engineering and Technology, University of Gezira, Wad Medani, Sudan
| | - Safura Kousar
- Department of Food Science, Government College University, Faisalabad, Pakistan
| | | | - Afifa Aziz
- Department of Food Science, Government College University, Faisalabad, Pakistan
| | - Zahra Maqbool
- Department of Food Science, Government College University, Faisalabad, Pakistan
| | - Ayesha Saeed
- Department of Biochemistry, Government College University Faisalabad, Pakistan
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3
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Tome D. Efficiency of Free Amino Acids in Supporting Muscle Protein Synthesis. J Nutr 2022; 152:3-4. [PMID: 35021214 DOI: 10.1093/jn/nxab370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Daniel Tome
- UMR PNCA, INRAe, AgroParisTech, Université Paris-Saclay, Paris, France
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4
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Loo RL, Chan Q, Antti H, Li JV, Ashrafian H, Elliott P, Stamler J, Nicholson JK, Holmes E, Wist J. Strategy for improved characterization of human metabolic phenotypes using a COmbined Multi-block Principal components Analysis with Statistical Spectroscopy (COMPASS). Bioinformatics 2021; 36:5229-5236. [PMID: 32692809 PMCID: PMC7850059 DOI: 10.1093/bioinformatics/btaa649] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 06/13/2020] [Accepted: 07/15/2020] [Indexed: 11/14/2022] Open
Abstract
MOTIVATION Large-scale population omics data can provide insight into associations between gene-environment interactions and disease. However, existing dimension reduction modelling techniques are often inefficient for extracting detailed information from these complex datasets. RESULTS Here, we present an interactive software pipeline for exploratory analyses of population-based nuclear magnetic resonance spectral data using a COmbined Multi-block Principal components Analysis with Statistical Spectroscopy (COMPASS) within the R-library hastaLaVista framework. Principal component analysis models are generated for a sequential series of spectral regions (blocks) to provide more granular detail defining sub-populations within the dataset. Molecular identification of key differentiating signals is subsequently achieved by implementing Statistical TOtal Correlation SpectroscopY on the full spectral data to define feature patterns. Finally, the distributions of cross-correlation of the reference patterns across the spectral dataset are used to provide population statistics for identifying underlying features arising from drug intake, latent diseases and diet. The COMPASS method thus provides an efficient semi-automated approach for screening population datasets. AVAILABILITY AND IMPLEMENTATION Source code is available at https://github.com/cheminfo/COMPASS. SUPPLEMENTARY INFORMATION Supplementary data are available at Bioinformatics online.
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Affiliation(s)
- Ruey Leng Loo
- Centre for Computational and Systems Medicine, Perth, WA 6150, Australia.,The Australian National Phenome Centre, Health Futures Institute, Murdoch University, Perth, WA 6150, Australia
| | - Queenie Chan
- Department of Epidemiology and Biostatistics, London W2 1PG, UK.,MRC Centre for Environment and Health, School of Public Health, Imperial College London, London W2 1PG, UK
| | - Henrik Antti
- Department of Chemistry, Umea Universitet, 901 87 Umeå, Sweden
| | - Jia V Li
- Department of Surgery and Cancer, Imperial College London, London W2 1PG, UK
| | - H Ashrafian
- Department of Surgery and Cancer, Imperial College London, London W2 1PG, UK
| | - Paul Elliott
- Department of Epidemiology and Biostatistics, London W2 1PG, UK.,MRC Centre for Environment and Health, School of Public Health, Imperial College London, London W2 1PG, UK
| | - Jeremiah Stamler
- Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Jeremy K Nicholson
- Centre for Computational and Systems Medicine, Perth, WA 6150, Australia.,The Australian National Phenome Centre, Health Futures Institute, Murdoch University, Perth, WA 6150, Australia
| | - Elaine Holmes
- Centre for Computational and Systems Medicine, Perth, WA 6150, Australia.,The Australian National Phenome Centre, Health Futures Institute, Murdoch University, Perth, WA 6150, Australia.,Department of Surgery and Cancer, Imperial College London, London W2 1PG, UK
| | - Julien Wist
- Chemistry Department, Universidad del Valle, Cali, Colombia
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5
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Cusworth G, Garnett T, Lorimer J. Legume dreams: The contested futures of sustainable plant-based food systems in Europe. GLOBAL ENVIRONMENTAL CHANGE : HUMAN AND POLICY DIMENSIONS 2021; 69:102321. [PMID: 34471332 PMCID: PMC8381765 DOI: 10.1016/j.gloenvcha.2021.102321] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 02/23/2021] [Accepted: 06/07/2021] [Indexed: 05/27/2023]
Abstract
With the intensification of agriculture, the simplification of crop rotations, and the rise in demand for meat, dairy and cereal products, legume production and consumption are at an historic low in Europe. But as the environmental consequences of agriculture (biodiversity loss, high greenhouse gas emissions, water pollution) and the health outcomes of modern diets (heart disease, cancer, diabetes, obesity) become better known, so great and varied hopes are being expressed about the future role of legumes in the food system. This paper catalogues and scrutinises these hopes, mapping the promissory narratives now orbiting around legumes. It identifies six food futures, each of which is made possible through the greater use of legumes in various production, processing, marketing and consumption contexts. These promissory narratives are theorised as contrasting responses to three major areas of contestation in the food systems literature. Namely i) the sustainability of livestock management, ii) the role of technology in different visions of the 'good diet', and iii) the merits of different models for how to make agricultural management more sustainable. It identifies the promiscuity of legumes - in terms of the range of food futures they permit - before distilling three points of consensus amongst advocates of the potential of legumes. These points of consensus relate to their nitrogen fixing capacity, their high protein content, and their long-standing historical role in the context of European food and farming. This map of legume dreams serves to guide deliberations amongst researchers, policymakers and industry stakeholders about the futures of plant-based food in Europe.
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Affiliation(s)
- George Cusworth
- Oxford Martin Programme on the Future of Food, c/o Oxford Martin School, University of Oxford, 34 Broad Street, Oxford OX1 3BD, UK
| | - Tara Garnett
- Oxford Martin Programme on the Future of Food, c/o Oxford Martin School, University of Oxford, 34 Broad Street, Oxford OX1 3BD, UK
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Abstract
Global population growth, increased life expectancy and climate change are all impacting world's food systems. In industrialised countries, many individuals are consuming significantly more protein than needed to maintain health, with the majority being obtained from animal products, including meat, dairy, fish and other aquatic animals. Current animal production systems are responsible for a large proportion of land and fresh-water use, and directly contributing to climate change through the production of greenhouse gases. Overall, approximately 60% of the global protein produced is used for animal and fish feed. Concerns about their impact on both human, and planetary health, have led to calls to dramatically curb our consumption of animal products. Underutilised plants, insects and single-cell organisms are all actively being considered as alternative protein sources. Each present challenges that need to be met before they can become economically viable and safe alternatives for food or feed. Many plant species contain anti-nutritional factors that impair the digestion and absorption of protein and micronutrients. Insects represent a potentially rich source of high-quality protein although, questions remain relating to digestibility, allergenicity and biosecurity. Algae, fungi and bacteria are also a rich source of protein and there is growing interest in the development of 'cultured meat' using stem cell technology. For the foreseeable future, it appears likely that the 'protein-economy' will remain mixed. The present paper reviews progress and future opportunities in the development of novel protein sources as food and animal feed.
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7
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Verzola D, Picciotto D, Saio M, Aimasso F, Bruzzone F, Sukkar SG, Massarino F, Esposito P, Viazzi F, Garibotto G. Low Protein Diets and Plant-Based Low Protein Diets: Do They Meet Protein Requirements of Patients with Chronic Kidney Disease? Nutrients 2020; 13:E83. [PMID: 33383799 PMCID: PMC7824653 DOI: 10.3390/nu13010083] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 12/23/2020] [Accepted: 12/26/2020] [Indexed: 02/06/2023] Open
Abstract
A low protein diet (LPD) has historically been used to delay uremic symptoms and decrease nitrogen (N)-derived catabolic products in patients with chronic kidney disease (CKD). In recent years it has become evident that nutritional intervention is a necessary approach to prevent wasting and reduce CKD complications and disease progression. While a 0.6 g/kg, high biological value protein-based LPD has been used for years, recent observational studies suggest that plant-derived LPDs are a better approach to nutritional treatment of CKD. However, plant proteins are less anabolic than animal proteins and amino acids contained in plant proteins may be in part oxidized; thus, they may not completely be used for protein synthesis. In this review, we evaluate the role of LPDs and plant-based LPDs on maintaining skeletal muscle mass in patients with CKD and examine different nutritional approaches for improving the anabolic properties of plant proteins when used in protein-restricted diets.
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Affiliation(s)
- Daniela Verzola
- Department of Internal Medicine, University of Genoa, 16132 Genoa, Italy; (D.V.); (D.P.); (M.S.); (P.E.); (F.V.)
| | - Daniela Picciotto
- Department of Internal Medicine, University of Genoa, 16132 Genoa, Italy; (D.V.); (D.P.); (M.S.); (P.E.); (F.V.)
- Clinica Nefrologica, Dialisi, Trapianto, IRCCS Ospedale Policlinico San Martino, 16142 Genoa, Italy
| | - Michela Saio
- Department of Internal Medicine, University of Genoa, 16132 Genoa, Italy; (D.V.); (D.P.); (M.S.); (P.E.); (F.V.)
- Clinica Nefrologica, Dialisi, Trapianto, IRCCS Ospedale Policlinico San Martino, 16142 Genoa, Italy
| | - Francesca Aimasso
- Clinical Nutrition Unit, IRCCS Ospedale Policlinico San Martino, 16142 Genoa, Italy; (F.A.); (F.B.); (S.G.S.); (F.M.)
| | - Francesca Bruzzone
- Clinical Nutrition Unit, IRCCS Ospedale Policlinico San Martino, 16142 Genoa, Italy; (F.A.); (F.B.); (S.G.S.); (F.M.)
| | - Samir Giuseppe Sukkar
- Clinical Nutrition Unit, IRCCS Ospedale Policlinico San Martino, 16142 Genoa, Italy; (F.A.); (F.B.); (S.G.S.); (F.M.)
| | - Fabio Massarino
- Clinical Nutrition Unit, IRCCS Ospedale Policlinico San Martino, 16142 Genoa, Italy; (F.A.); (F.B.); (S.G.S.); (F.M.)
| | - Pasquale Esposito
- Department of Internal Medicine, University of Genoa, 16132 Genoa, Italy; (D.V.); (D.P.); (M.S.); (P.E.); (F.V.)
- Clinica Nefrologica, Dialisi, Trapianto, IRCCS Ospedale Policlinico San Martino, 16142 Genoa, Italy
| | - Francesca Viazzi
- Department of Internal Medicine, University of Genoa, 16132 Genoa, Italy; (D.V.); (D.P.); (M.S.); (P.E.); (F.V.)
- Clinica Nefrologica, Dialisi, Trapianto, IRCCS Ospedale Policlinico San Martino, 16142 Genoa, Italy
| | - Giacomo Garibotto
- Department of Internal Medicine, University of Genoa, 16132 Genoa, Italy; (D.V.); (D.P.); (M.S.); (P.E.); (F.V.)
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8
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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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9
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Cynober L, Bier DM, Stover P, Kadowaki M, Morris SM, Elango R, Smriga M. Proposals for Upper Limits of Safe Intake for Methionine, Histidine, and Lysine in Healthy Humans. J Nutr 2020; 150:2606S-2608S. [PMID: 33000163 DOI: 10.1093/jn/nxaa231] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 06/15/2020] [Accepted: 07/10/2020] [Indexed: 12/21/2022] Open
Abstract
Based on research presented during the 10th Amino Acid Assessment Workshop, no observed adverse effect levels (NOAELs) for supplemental methionine at 46 mg/(kg·d) (∼3.2 g/d), for supplemental histidine at 8.0 g/d, and for supplemental lysine at 6.0 g/d have been proposed. These NOAELs are relevant to healthy adults and are applicable only to high-purity amino acids administered in fortified foods or dietary supplements. Because individuals are exposed to the above supplemental amino acids in the context of complex combinations of essential amino acids or individually in dietary supplements for various physiologic benefits, such as body fat reduction, skin conditioning, mental energy increase, or herpes simplex treatments, the above safety recommendations will make an important contribution to regulatory and nutritional practices.
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Affiliation(s)
- Luc Cynober
- Scientific Advisory Committee of the International Council for Amino Acid Science (ICAAS), Brussels, Belgium.,Clinical Chemistry Laboratory, Cochin Hospital, AP-HP, Paris, France.,Biological Nutrition Laboratory and EA 4466, Faculty of Pharmacy, Paris Descartes University, Paris, France
| | - Dennis M Bier
- Scientific Advisory Committee of the International Council for Amino Acid Science (ICAAS), Brussels, Belgium.,USDA/ARS Children's Nutrition Research Center, Baylor College of Medicine, Houston, TX, USA
| | - Patrick Stover
- Scientific Advisory Committee of the International Council for Amino Acid Science (ICAAS), Brussels, Belgium.,Texas A&M AgriLife, College Station, TX, USA
| | - Motoni Kadowaki
- Scientific Advisory Committee of the International Council for Amino Acid Science (ICAAS), Brussels, Belgium.,Department of Engineering, Niigata Institute of Technology, Niigata, Japan
| | - Sidney M Morris
- Scientific Advisory Committee of the International Council for Amino Acid Science (ICAAS), Brussels, Belgium.,University of Pittsburgh, School of Medicine, Pittsburgh, PA, USA
| | - Rajavel Elango
- Scientific Advisory Committee of the International Council for Amino Acid Science (ICAAS), Brussels, Belgium.,Department of Pediatrics, School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada
| | - Miro Smriga
- International Council for Amino Acid Science (ICAAS), Brussels, Belgium
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10
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Davies RW, Jakeman PM. Separating the Wheat from the Chaff: Nutritional Value of Plant Proteins and Their Potential Contribution to Human Health. Nutrients 2020; 12:E2410. [PMID: 32806532 PMCID: PMC7468956 DOI: 10.3390/nu12082410] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 08/05/2020] [Accepted: 08/06/2020] [Indexed: 01/03/2023] Open
Abstract
The quality and nutritional value of dietary proteins are determined by the quantity, digestibility and bioavailability of essential amino acids (EAA), which play a critical role in human growth, longevity and metabolic health. Plant-source protein is often deficient in one or more EAAs (e.g., branched-chain amino acids, lysine, methionine and/or tryptophan) and, in its natural form, is less digestible than animal-source protein. Nevertheless, dietary intake of plant-source protein has been promoted because of its potential health benefits, lower cost of production and lower environmental impact compared to animal-source protein. Implementation of dietary strategies that improve both human and planetary health are of critical importance and subject to growing interest from researchers and consumers. Therefore, in this review we analyse current plant protein intake patterns and discuss possible countermeasures that can enhance plant protein nutrition, examples include: (1) combining different plant proteins with complementary EAA profiles; (2) identification and commercial cultivation of new and novel high-quality plant proteins; (3) industrial and domestic processing methods; and (4) genome-editing techniques.
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Affiliation(s)
- Robert W. Davies
- Physical Education and Sport Sciences Department, University of Limerick, V94 T9PX Limerick, Ireland;
| | - Philip M. Jakeman
- Physical Education and Sport Sciences Department, University of Limerick, V94 T9PX Limerick, Ireland;
- Health Research Institute, University of Limerick, V94 T9PX Limerick, Ireland
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11
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Meybodi NM, Mirmoghtadaie L, Sheidaei Z, Mortazavian AM. Wheat Bread: Potential Approach to Fortify its Lysine Content. CURRENT NUTRITION & FOOD SCIENCE 2019. [DOI: 10.2174/1573401315666190228125241] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Wheat bread is the main foodstuff and supply of dietary energy/protein in most developing
countries. Wheat based diets are poor regarding essential amino acid content especially lysine as the
first limiting amino acid. Since human body is unable to build lysine, it is necessary to be taken via
food and/or supplements. Recommended daily intake of lysine is estimated to be around 30-64
mg/kg body weight. Inadequate intake of lysine results in a syndrome called ‘protein energy malnutrition’
which is suspected to be more prevalent in developing countries. Since lysine is provided by
different sources (especially meat), there is no published data about the lack of lysine, however it is
estimated to be prevalent in developing countries where the lysine-rich sources are generally expensive
and low accessible there. The lysine fortification of wheat bread is conducted mainly to provide
an accessible lysine-rich source. Biofortification, using lysine rich sources (either as flour or protein
concentrates) and directly addition of lysine amino acid and its derivative have been investigated in
different studies. The aim of this article is to review the potential strategies to improve the lysine
content of wheat bread from both nutritional and technological points of view.
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Affiliation(s)
- Neda Mollakhalili Meybodi
- Student Research Committee, Department of Food Science and Technology, Faculty of Nutrition Science and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Leila Mirmoghtadaie
- Department of Food Science and Technology, Faculty of Nutrition Sciences, Food Science and Technology, Shahid Beheshti University of Medical Sciences, National Nutrition and Food Technology Research Institute, P.O. Box 193954741, Tehran, Iran
| | - Zhaleh Sheidaei
- Student Research Committee, Department of Food Science and Technology, Faculty of Nutrition Science and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Amir Mohammad Mortazavian
- Department of Food Science and Technology, Faculty of Nutrition Sciences, Food Science and Technology, Shahid Beheshti University of Medical Sciences, National Nutrition and Food Technology Research Institute, P.O. Box 193954741, Tehran, Iran
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12
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Xiong Y, Zhang P, Warner RD, Fang Z. Sorghum Grain: From Genotype, Nutrition, and Phenolic Profile to Its Health Benefits and Food Applications. Compr Rev Food Sci Food Saf 2019; 18:2025-2046. [PMID: 33336966 DOI: 10.1111/1541-4337.12506] [Citation(s) in RCA: 96] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 09/19/2019] [Accepted: 09/24/2019] [Indexed: 11/29/2022]
Abstract
Globally, sorghum is one of the most important but least utilized staple crops. Sorghum grain is a rich source of nutrients and health-beneficial phenolic compounds. The phenolic profile of sorghum is exceptionally unique and more abundant and diverse than other common cereal grains. The phenolic compounds in sorghum are mainly composed of phenolic acids, 3-deoxyanthocyanidins, and condensed tannins. Studies have shown that sorghum phenolic compounds have potent antioxidant activity in vitro, and consumption of sorghum whole grain may improve gut health and reduce the risks of chronic diseases. Recently, sorghum grain has been used to develop functional foods and beverages, and as an ingredient incorporated into other foods. Moreover, the phenolic compounds, 3-deoxyanthocyanidins, and condensed tannins can be isolated and used as promising natural multifunctional additives in broad food applications. The objective of this review is to provide a comprehensive understanding of nutrition and phenolic compounds derived from sorghum and their related health effects, and demonstrate the potential for incorporation of sorghum in food systems as a functional component and food additive to improve food quality, safety, and health functions.
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Affiliation(s)
- Yun Xiong
- Faculty of Veterinary and Agricultural Sciences, School of Agriculture and Food, Univ. of Melbourne, Parkville, VIC, 3010, Australia
| | - Pangzhen Zhang
- Faculty of Veterinary and Agricultural Sciences, School of Agriculture and Food, Univ. of Melbourne, Parkville, VIC, 3010, Australia
| | - Robyn Dorothy Warner
- Faculty of Veterinary and Agricultural Sciences, School of Agriculture and Food, Univ. of Melbourne, Parkville, VIC, 3010, Australia
| | - Zhongxiang Fang
- Faculty of Veterinary and Agricultural Sciences, School of Agriculture and Food, Univ. of Melbourne, Parkville, VIC, 3010, Australia
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13
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Hayamizu K, Oshima I, Fukuda Z, Kuramochi Y, Nagai Y, Izumo N, Nakano M. Safety assessment of L-lysine oral intake: a systematic review. Amino Acids 2019; 51:647-659. [PMID: 30661148 DOI: 10.1007/s00726-019-02697-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 01/08/2019] [Indexed: 10/27/2022]
Abstract
Currently, the use of amino acids in supplements and functional foods is increasing globally. However, there are no guidelines for the upper limit of ingestion for the safe use of these amino acids. Safety evaluation of chemical substances is generally performed through non-clinical and clinical studies. However, amino acids that have these safety data are limited. Therefore, we used a systematic review approach for evaluating the safety of amino acids. In the present study, we evaluated the safety of L-lysine added to an ordinary diet in humans. Using PubMed, Cochrane Library, Ichushi Web, and EBSCOhost as search databases, we comprehensively searched human studies on oral ingestion of L-lysine. Ultimately, 71 studies were selected for evaluation. Of these, 12 studies were of relatively high quality with Jadad scores ≥ 3. The dose range of L-lysine in the selected studies was 16.8-17,500 mg/day, and the range of dosing period was 1-1095 days. The observed adverse events were mainly subjective symptoms related to the gastrointestinal tract such as nausea, stomachache, and diarrhea. The provisional no-observed-adverse-effect level obtained based on these gastrointestinal symptoms was 6000 mg/person/day. Integrated analysis of the risk for developing gastrointestinal symptoms revealed that the risk ratio was 1.02 (95% CI, 0.96-1.07; p = 0.49); thus, no significant increase was observed. (UMIN000028914).
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Affiliation(s)
- Kohsuke Hayamizu
- Laboratory of Food Chemistry, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama, Kanagawa, 245-0066, Japan.
| | - Ikuyo Oshima
- Laboratory of Food Chemistry, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama, Kanagawa, 245-0066, Japan
| | - Zesoku Fukuda
- Laboratory of Food Chemistry, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama, Kanagawa, 245-0066, Japan
| | - Yui Kuramochi
- Laboratory of Food Chemistry, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama, Kanagawa, 245-0066, Japan
| | - Yuki Nagai
- Laboratory of Food Chemistry, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama, Kanagawa, 245-0066, Japan
| | - Nobuo Izumo
- General Health Medical Center, Yokohama University of Pharmacy, Yokohama, Japan
| | - Makoto Nakano
- Laboratory of Food Chemistry, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama, Kanagawa, 245-0066, Japan.,General Health Medical Center, Yokohama University of Pharmacy, Yokohama, Japan
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Furuta C, Murakami H. A Novel Concept of Amino Acid Supplementation to Improve the Growth of Young Malnourished Male Rats. ANNALS OF NUTRITION AND METABOLISM 2018. [PMID: 29518784 DOI: 10.1159/000487603] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUNDS/AIMS This study was aimed at understanding the relationship between plasma amino acids and protein malnutrition and at determining whether amino acid supplementation associated with malnutrition and growth improves linear growth in growing rats. METHODS Body length and plasma amino acids were measured in young male rats that were fed the following diet for 3 weeks, mimicking a low and imbalanced protein diets based on maize, a major staple consumed in developing countries: a 70% calorically restricted cornmeal-based diet (C), C + micronutrients (CM), CM + casein (CMC), CM + soy protein (CMS) or CMS + 0.3% lysine. RESULTS A correlation analysis of linear growth and plasma amino acids indicated that lysine, tryptophan, branched-chain amino acids, methionine, and phenylalanine significantly correlated with body length. Supplementation with these 5 amino acids (AA1) significantly improved the body length in rats compared to CMC treatment whereas, nitrogen-balanced amino acid supplemented controls (AA2) did not (CM +1.2 ± 0.2, CMC +2.7 ± 0.3, CMS +2.1 ± 0.3, AA1 +2.8 ± 0.2, and AA2 +2.5 ± 0.3 cm). CONCLUSION With securing proper amino acid balance, supplementing growth-related amino acids is more effective in improving linear growth in malnourished growing male rats. Analysis of the correlation between plasma amino acids and growth represents a powerful tool to determine candidate amino acids for supplementation to prevent malnutrition. This technology is adaptable to children in developing countries.
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Vuvor F, Mohammed H, Ndanu T, Harrison O. Effect of lysine supplementation on hypertensive men and women in selected peri-urban community in Ghana. BMC Nutr 2017; 3:67. [PMID: 32153847 PMCID: PMC7050943 DOI: 10.1186/s40795-017-0187-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 07/19/2017] [Indexed: 11/27/2022] Open
Abstract
Background Lysine is one of the essential amino acids and in cereal based diets it is known to be the most limiting and therefore determines the quality of dietary protein in such diets. This study investigated the effect of lysine supplementation on blood pressure of hypertensive adults in selected peri-urban community in Accra, Ghana. Methods The study was a randomized double-blind controlled study made up of adults men and women assigned to a lysine supplemented group and a placebo-supplemented (control) group. The subjects aged between 18 – 45 years and totaling 180. Results Total of 50 (28%) of the participating were hypertensive defined as Systolic Blood Pressure (SBP) ≥140 mmHg. The mean SBP of lysine-supplemented group significantly dropped from 146.11 ± 11.92 to 128.95 ± 10.44 mmHg (p = 0.02). That of women also dropped from 144.12 ± 10.41 to 132.28 ± 10.69 mmHg, (p = 0.06 while the control group had there SBP remained fairly constant after 112 days of intervention with changes in men from 145.79 ± 12.56 to 142.79 ± 11.07 mmHg (p = 0.32) and women in the control had very little drop from 145.15 ± 14.79 to 145.00 ± 17.93 mmHg (p = 0.96). Conclusion Lysine supplementation resulted in normalization/reduction of blood pressure of hypertensive subjects who have suboptimal lysine intake.
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Affiliation(s)
- Frederick Vuvor
- 1Department of Nutrition and Food Science, School of Biological Sciences, College of Basic and Applied Sciences, University of Ghana, Accra, Ghana
| | | | - Thomas Ndanu
- Department of Community and Preventive Dentistry, School of Medicine and Dentistry, College of Health Sciences, University of Ghana Legon-Accra, Accra, Ghana
| | - Obed Harrison
- 1Department of Nutrition and Food Science, School of Biological Sciences, College of Basic and Applied Sciences, University of Ghana, Accra, Ghana
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Bóka B, Korózs M, Nánási M, Adányi N. Novel Amperometric Tri-Enzyme Biosensor for Lysine Determination in Pharmaceutical Products and Food Samples. ELECTROANAL 2015. [DOI: 10.1002/elan.201400600] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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17
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Wong HW, Liu Q, Sun SSM. Biofortification of rice with lysine using endogenous histones. PLANT MOLECULAR BIOLOGY 2015; 87:235-48. [PMID: 25512028 PMCID: PMC4302240 DOI: 10.1007/s11103-014-0272-z] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Accepted: 12/04/2014] [Indexed: 05/03/2023]
Abstract
Rice is the most consumed cereal grain in the world, but deficient in the essential amino acid lysine. Therefore, people in developing countries with limited food diversity who rely on rice as their major food source may suffer from malnutrition. Biofortification of stable crops by genetic engineering provides a fast and sustainable method to solve this problem. In this study, two endogenous rice lysine-rich histone proteins, RLRH1 and RLRH2, were over-expressed in rice seeds to achieve lysine biofortification. Their protein sequences passed an allergic sequence-based homology test. Their accumulations in rice seeds were raised to a moderate level by the use of a modified rice glutelin 1 promoter with lowered expression strength to avoid the occurrence of physiological abnormalities like unfolded protein response. The expressed proteins were further targeted to protein storage vacuoles for stable storage using a glutelin 1 signal peptide. The lysine content in the transgenic rice seeds was enhanced by up to 35 %, while other essential amino acids remained balanced, meeting the nutritional standards of the World Health Organization. No obvious unfolded protein response was detected. Different degrees of chalkiness, however, were detected in the transgenic seeds, and were positively correlated with both the levels of accumulated protein and lysine enhancement. This study offered a solution to the lysine deficiency in rice, while at the same time addressing concerns about food safety and physiological abnormalities in biofortified crops.
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Affiliation(s)
- H. W. Wong
- State Key Laboratory of Agrobiotechnology and School of Life Sciences, The Chinese University of Hong Kong, Shatin, N.T. Hong Kong, China
- Present Address: SCG90, Science Center, The Chinese University of Hong Kong, Shatin, N.T. Hong Kong, China
| | - Q. Liu
- Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, China
| | - S. S. M. Sun
- State Key Laboratory of Agrobiotechnology and School of Life Sciences, The Chinese University of Hong Kong, Shatin, N.T. Hong Kong, China
- Present Address: SCG90, Science Center, The Chinese University of Hong Kong, Shatin, N.T. Hong Kong, China
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De Groote H, Gunaratna NS, Okuro JO, Wondimu A, Chege CK, Tomlins K. Consumer acceptance of quality protein maize (QPM) in East Africa. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2014; 94:3201-12. [PMID: 24659349 DOI: 10.1002/jsfa.6672] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Revised: 03/16/2014] [Accepted: 03/17/2014] [Indexed: 05/10/2023]
Abstract
BACKGROUND Undernutrition in sub-Saharan Africa remains problematic, and quality protein maize (QPM) can benefit populations whose diets are heavily based on maize and who are consequently at risk for inadequate intakes of quality protein. However, changes in the chemical composition of QPM may affect its sensory characteristics and, hence, acceptance. Acceptance tests were therefore conducted to evaluate QPM varieties in three East African countries using central location tests with one or two varieties in each country, using the most popular preparations: ugali (Tanzania), githeri (Kenya) and injera (Ethiopia). In total, 281 urban and rural consumers of both sexes and varying levels of education evaluated the products on standard sensory criteria: appearance, aroma, texture, taste and overall, using a Likert scale. RESULTS The results show that African consumers can differentiate QPM products from their conventional counterparts, indicating that the QPM trait results in distinguishable sensory changes. Analysis by ordinal mixed regression models showed that consumers found QPM acceptable and even preferable to conventional maize. CONCLUSION The sensory characteristics of QPM are therefore no impediment to its adoption; on the contrary, when coupled with good agronomic performance, they may help its utilization, leading to a positive impact in nutritionally vulnerable populations.
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De Groote H, Chege CK, Tomlins K, Gunaratna NS. Combining experimental auctions with a modified home-use test to assess rural consumers’ acceptance of quality protein maize, a biofortified crop. Food Qual Prefer 2014. [DOI: 10.1016/j.foodqual.2014.04.014] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Increasing the health benefits of bread: Assessment of the physical and sensory qualities of bread formulated using a renin inhibitory Palmaria palmata protein hydrolysate. Lebensm Wiss Technol 2014. [DOI: 10.1016/j.lwt.2013.11.031] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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21
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Gil-Humanes J, Pistón F, Altamirano-Fortoul R, Real A, Comino I, Sousa C, Rosell CM, Barro F. Reduced-gliadin wheat bread: an alternative to the gluten-free diet for consumers suffering gluten-related pathologies. PLoS One 2014; 9:e90898. [PMID: 24621595 PMCID: PMC3951262 DOI: 10.1371/journal.pone.0090898] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2013] [Accepted: 02/06/2014] [Indexed: 12/20/2022] Open
Abstract
Wheat flour cannot be tolerated by those who suffer allergies to gluten. Human pathologies associated with grain proteins have increased worldwide in recent years, and the only effective treatment available is a lifelong gluten-free diet, which is complicated to follow and detrimental to gut health. This manuscript describes the development of wheat bread potentially suitable for celiac patients and other gluten-intolerant individuals. We have made bread using wheat flour with very low content of the specific gluten proteins (near gliadin-free) that are the causal agents for pathologies such as celiac disease. Loaves were compared with normal wheat breads and rice bread. Organoleptic, nutritional, and immunotoxic properties were studied. The reduced-gliadin breads showed baking and sensory properties, and overall acceptance, similar to those of normal flour, but with up to 97% lower gliadin content. Moreover, the low-gliadin flour has improved nutritional properties since its lysine content is significantly higher than that of normal flour. Conservative estimates indicate that celiac patients could safely consume 67 grams of bread per day that is made with low-gliadin flour. However, additional studies, such as feeding trials with gluten-intolerant patients, are still needed in order to determine whether or not the product can be consumed by the general celiac population, as well as the actual tolerated amount that can be safely ingested. The results presented here offer a major opportunity to improve the quality of life for millions of sufferers of gluten intolerance throughout the world.
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Affiliation(s)
- Javier Gil-Humanes
- Instituto de Agricultura Sostenible, CSIC, Córdoba, Spain
- * E-mail: (JG-H); (FB)
| | | | | | - Ana Real
- Departamento de Microbiología y Parasitología, Facultad de Farmacia, Universidad de Sevilla, Sevilla, Spain
| | - Isabel Comino
- Departamento de Microbiología y Parasitología, Facultad de Farmacia, Universidad de Sevilla, Sevilla, Spain
| | - Carolina Sousa
- Departamento de Microbiología y Parasitología, Facultad de Farmacia, Universidad de Sevilla, Sevilla, Spain
| | - Cristina M. Rosell
- Instituto de Agroquímica y Tecnología de Alimentos, CSIC, Valencia, Spain
| | - Francisco Barro
- Instituto de Agricultura Sostenible, CSIC, Córdoba, Spain
- * E-mail: (JG-H); (FB)
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Abstract
Dietary protein and amino acid requirement recommendations for normal "healthy" children and adults have varied considerably with 2007 FAO/WHO protein requirement estimates for children lower, but dietary essential AA requirements for adults more than doubled. Requirement estimates as presented do not account for common living conditions, which are prevalent in developing countries such as energy deficit, infection burden and added functional demands for protein and AAs. This study examined the effect of adjusting total dietary protein for quality and digestibility (PDCAAS) and of correcting current protein and AA requirements for the effect of infection and a mild energy deficit to estimate utilizable protein (total protein corrected for biological value and digestibility) and the risk/prevalence of protein inadequacy. The relationship between utilizable protein/prevalence of protein inadequacy and stunting across regions and countries was examined. Data sources (n = 116 countries) included FAO FBS (food supply), UNICEF (stunting prevalence), UNDP (GDP) and UNSTATS (IMR) and USDA nutrient tables. Statistical analyses included Pearson correlations, paired-sample/non-parametric t-tests and linear regression. Statistically significant differences were observed in risk/prevalence estimates of protein inadequacy using total protein and the current protein requirements versus utilizable protein and the adjusted protein requirements for all regions (p < 0·05). Total protein, utilizable protein, GDP per capita and total energy were each highly correlated with the prevalence of stunting. Energy, protein and utilizable protein availability were independently and negatively associated with stunting (p < 0·001), explaining 41 %, 34 % and 40 % of variation respectively. Controlling for energy, total protein was not a statistically significant factor but utilizable protein remained significant explaining~45 % of the variance (p = 0·017). Dietary utilizable protein provides a better index of population impact of risk/prevalence of protein inadequacy than crude protein intake. We conclude that the increased demand for protein due to infections and mild to moderate energy deficits, should be appropriately considered in assessing needs of populations where those conditions still prevail.
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The effect of a controlled 8-week metabolic ward based lysine supplementation on muscle function, insulin sensitivity and leucine kinetics in young men. Clin Nutr 2012; 31:903-10. [DOI: 10.1016/j.clnu.2012.03.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2011] [Revised: 03/07/2012] [Accepted: 03/24/2012] [Indexed: 11/15/2022]
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Effect of lysine, vitamin B(6), and carnitine supplementation on the lipid profile of male patients with hypertriglyceridemia: a 12-week, open-label, randomized, placebo-controlled trial. Clin Ther 2012; 34:1674-82. [PMID: 22818869 DOI: 10.1016/j.clinthera.2012.06.019] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/19/2012] [Indexed: 11/24/2022]
Abstract
BACKGROUND Fat metabolism is known to be altered in hypertriglyceridemia. Fat oxidation requires carnitine, which can be obtained either from the diet (animal or dairy products) or through synthesis in the body using both lysine and vitamin B(6). OBJECTIVE The goal of this study was to investigate the effect of lysine, vitamin B(6), and carnitine supplementation on both glycemia and the lipid profiles, specifically triglyceride (TG) levels, in men with hypertriglyceridemia. METHODS This 12-week, randomized, placebo-controlled clinical trial was conducted at a Lebanese medical center. A total of 85 hypertriglyceridemic (TG> 150 mg/dL) male patients were randomized to 1 of 5 groups and given supplements of lysine (1 g/d), vitamin B(6) (50 mg/d), lysine (1 g/d) + vitamin B(6) (50 mg/d), carnitine (1 g/d), or placebo for 12 weeks. The lipid profile (TG, total cholesterol, LDL-C, and HDL-C) and fasting plasma glucose levels were assessed at baseline and at 6 and 12 weeks. RESULTS Adults (∼50 years) Lebanese males from a low socioeconomic status in Beirut were given the appropriate supplements. Vitamin B(6) supplementation was associated with a significant reduction in total cholesterol and HDL-C of ∼10%. In addition, plasma TG was reduced by 36.6 mg/dL at 6 weeks, whereas levels in the placebo group increased by 18 mg/dL; this difference failed to reach statistical significance. No major changes in the lipid profile were observed in the lysine and carnitine groups or when lysine was added to vitamin B(6). CONCLUSION Vitamin B(6) supplementation in these male patients with hypertriglyceridemia reduced plasma total cholesterol and HDL-C concentrations.
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Scientific Opinion on the substantiation of health claims related to L-lysine and immune defence against herpes virus (ID 453), maintenance of normal blood LDL-cholesterol concentrations (ID 454, 4669), increase in appetite leading to an increase in energ. EFSA J 2011. [DOI: 10.2903/j.efsa.2011.2063] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Ghosh S, Smriga M, Vuvor F, Suri D, Mohammed H, Armah SM, Scrimshaw NS. Effect of lysine supplementation on health and morbidity in subjects belonging to poor peri-urban households in Accra, Ghana. Am J Clin Nutr 2010; 92:928-39. [PMID: 20720257 DOI: 10.3945/ajcn.2009.28834] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Lysine affects diarrhea and anxiety via effects on serotonin receptors, enhanced intestinal repair, and sodium chloride-dependent opioid peptide transport. OBJECTIVE The objective was to investigate the effects of lysine supplementation on morbidity, growth, and anxiety in children and adults of peri-urban areas of Accra, Ghana. DESIGN In a double-blind randomized trial, the effect of lysine supplementation (1 g lysine/d) compared with that of placebo was examined in 2 groups of men, women, and children (n = 271). Primary outcomes included diarrheal and respiratory morbidity, growth, and anxiety and complement C3, C-reactive protein, serum cortisol, transferrin, and ferritin values. Independent-sample t tests, odds ratios, generalized estimating equations, 4-parameter sinusoid regression, and generalized linear models were used. RESULTS Thirty percent of men, 50% of women, and 15% of children were at risk of lysine inadequacy. Supplementation in children reduced diarrheal episodes [19 lysine, 35 placebo; odds ratio (OR): 0.52; 95% CI: 0.29, 0.92; P = 0.046] and the total number of days ill (21 lysine, 47 placebo; OR: 0.44; 95% CI: 0.26, 0.74; P = 0.034). Mean days ill per child per week (0.058 ± 0.039 lysine, 0.132 ± 0.063 placebo; P = 0.017) were negatively associated with weight gain with control for baseline weight and study group (P = 0.04). Men had fewer coryza episodes (23 lysine, 39 placebo; OR: 0.60; 95% CI: 0.36, 1.01; P = 0.05), total number of days ill (lysine: 130; placebo: 266; OR: 0.51; 95% CI: 0.28, 0.93; P = 0.03), and mean days ill per person per week (lysine: 0.21 ± 0.23; placebo: 0.41 ± 0.35; P = 0.04). Serum ferritin (P = 0.045) and C-reactive protein (P = 0.018) decreased in lysine-supplemented women but increased in placebo-supplemented women. CONCLUSION Lysine supplementation reduced diarrheal morbidity in children and respiratory morbidity in men in Ghana.
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Affiliation(s)
- Shibani Ghosh
- Nevin Scrimshaw International Nutrition Foundation, Boston, MA 02111, USA.
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Akalu G, Taffesse S, Gunaratna NS, De Groote H. The Effectiveness of Quality Protein Maize in Improving the Nutritional Status of Young Children in the Ethiopian Highlands. Food Nutr Bull 2010; 31:418-30. [DOI: 10.1177/156482651003100304] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background Undernutrition is a persistent problem in Africa, especially in rural areas where the poor largely depend on staples and have limited access to a diverse diet. Quality protein maize (QPM) consists of maize varieties biofortified with increased lysine and tryptophan levels. Several studies in controlled settings have indicated the positive impact of QPM on the nutritional status of children. Objective Two 1-year, randomized, controlled studies were undertaken to measure the effect of QPM on the nutritional status of children consuming typical maize-based diets when QPM was cultivated by their households in the western Ethiopian highlands. Methods The first study used a cluster-randomized design with 151 children aged 5 to 29 months; the second study used a completely randomized design with 211 children aged 7 to 56 months. In both studies, half of the households were provided with QPM seed and the other half with seed of an improved conventional maize variety. Results Undernutrition was pervasive, and maize was the dominant food in the children's complementary diets. In the first study, a positive effect of QPM was observed for weight but not height, with children in the QPM group recovering from a drop in weight-for-height. In the second study, children consuming conventional maize progressively faltered in their growth, whereas children consuming QPM did not change significantly in height-for-age and had a marginal increase in weight-for-age. Conclusions These studies indicate that in major maize-producing and -consuming areas of Africa, home cultivation and use of QPM in children's diets could reduce or prevent growth faltering and may in some cases support catch-up growth in weight.
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Chapman KP, Courtney-Martin G, Moore AM, Langer JC, Tomlinson C, Ball RO, Pencharz PB. Lysine requirement in parenterally fed postsurgical human neonates. Am J Clin Nutr 2010; 91:958-65. [PMID: 20164307 DOI: 10.3945/ajcn.2009.28729] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND The lysine requirement of human neonates receiving parenteral nutrition (PN) has not been determined experimentally. OBJECTIVE The objective was to determine the parenteral lysine requirement for human neonates by using the minimally invasive indicator amino acid oxidation technique with l-[1-(13)C] phenylalanine as the indicator amino acid. DESIGN Eleven postsurgical neonates were randomly assigned to 15 lysine intakes ranging from 50 to 260 mg . kg(-1) . d(-1). Breath and urine samples were collected at baseline and at plateau for (13)CO(2) (F(13)CO(2)) and amino acid enrichment, respectively. The mean lysine requirement was determined by applying a 2-phase linear regression crossover analysis to the measured rates of F(13)CO(2) release and l-[1-(13)C]phenylalanine oxidation. RESULTS The mean parenteral lysine requirement determined by F(13)CO(2) release oxidation was 104.9 mg . kg(-1) . d(-1) (upper and lower CIs: 120.6 and 89.1 mg . kg(-1) . d(-1), respectively). The mean lysine parenteral requirement determined by phenylalanine oxidation was 117.6 mg . kg(-1) . d(-1) (upper and lower CIs: 157.5 and 77.6 mg . kg(-1) . d(-1), respectively). Graded intakes of lysine had no effect on phenylalanine flux. CONCLUSION We recommend a mean lysine requirement for the postsurgical PN-fed neonate of 104.9 mg . kg(-1) . d(-1), which is 32-43% of the lysine concentration presently found in commercial PN solutions (246-330 mg . kg(-1) . d(-1)). This trial was registered at clinicaltrials.gov as NCT00779753.
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Affiliation(s)
- Karen P Chapman
- Research Institute, The Hospital for Sick Children, Toronto, Canada
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Henley EC, Taylor JRN, Obukosia SD. The importance of dietary protein in human health: combating protein deficiency in sub-Saharan Africa through transgenic biofortified sorghum. ADVANCES IN FOOD AND NUTRITION RESEARCH 2010; 60:21-52. [PMID: 20691952 DOI: 10.1016/s1043-4526(10)60002-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Child malnutrition is increasing in Africa. Protein deficiency is an important cause since protein is essential for both growth and maintenance of muscle mass. Sorghum is a major staple food in Africa on account of its hardiness as a crop. However, sorghum protein is very deficient in the indispensable amino acid lysine and on cooking has poor protein digestibility. This results in sorghum having a very low Protein Digestibility Corrected Amino Acid Score (PDCAAS). The Africa Biofortified Sorghum project, a Grand Challenges in Global Heath project, is undertaking research to biofortify sorghum in terms of protein and micronutrient quality using genetic engineering. Lysine and protein digestibility have been improved by suppression of synthesis of the kafirin storage proteins. Transgenic biofortified sorghum has double the PDCAAS of conventional sorghum. This improvement should enable a young child to meet most of its protein and energy requirements from biofortified sorghum porridge. This together with the improvement in micronutrients could provide the basis of a sustainable and broadly comprehensive solution to child malnutrition in many African countries.
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Affiliation(s)
- E C Henley
- EC Henley Consulting, Athens, Georgia, USA
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