1
|
Latoch A, Stasiak DM, Siczek P. Edible Offal as a Valuable Source of Nutrients in the Diet-A Review. Nutrients 2024; 16:1609. [PMID: 38892542 PMCID: PMC11174546 DOI: 10.3390/nu16111609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 05/16/2024] [Accepted: 05/22/2024] [Indexed: 06/21/2024] Open
Abstract
The global increase in demand for meat leads to substantial quantities of by-products, including edible offal from both wild and domesticated animals raised for diversified consumption products within an agricultural framework. Information on the nutritional value of offal is scattered and limited. This review aims to synthesize scientific publications on the potential of offal as a source of nutrients and bioactive substances in human diets. The literature review included publications available in ISI Web of Science and Google Scholar published between 2014 and 2024. Findings indicate that edible offal is characterized by a nutrient concentration often surpassing that found in skeletal muscle. This review discusses the yield of edible offal and explores factors influencing human consumption. Selected factors affecting the nutritional value of offal of various animals and the importance of individual nutrients in ensuring the proper functioning of the human body were analyzed. The optimal use of offal in processing and catering can significantly benefit aspects of human life, including diet quality, food security, and conservation of natural resources.
Collapse
Affiliation(s)
- Agnieszka Latoch
- Department of Animal Food Technology, University of Life Sciences in Lublin, 8 Skromna St., 20-704 Lublin, Poland;
| | - Dariusz Mirosław Stasiak
- Department of Animal Food Technology, University of Life Sciences in Lublin, 8 Skromna St., 20-704 Lublin, Poland;
| | - Patryk Siczek
- Department of Plant Food Technology and Gastronomy, University of Life Sciences in Lublin, 8 Skromna St., 20-704 Lublin, Poland;
| |
Collapse
|
2
|
Lapenna D. Glutathione and glutathione-dependent enzymes: From biochemistry to gerontology and successful aging. Ageing Res Rev 2023; 92:102066. [PMID: 37683986 DOI: 10.1016/j.arr.2023.102066] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 08/24/2023] [Accepted: 09/04/2023] [Indexed: 09/10/2023]
Abstract
The tripeptide glutathione (GSH), namely γ-L-glutamyl-L-cysteinyl-glycine, is an ubiquitous low-molecular weight thiol nucleophile and reductant of utmost importance, representing the central redox agent of most aerobic organisms. GSH has vital functions involving also antioxidant protection, detoxification, redox homeostasis, cell signaling, iron metabolism/homeostasis, DNA synthesis, gene expression, cysteine/protein metabolism, and cell proliferation/differentiation or death including apoptosis and ferroptosis. Various functions of GSH are exerted in concert with GSH-dependent enzymes. Indeed, although GSH has direct scavenging antioxidant effects, its antioxidant function is substantially accomplished by glutathione peroxidase-catalyzed reactions with reductive removal of H2O2, organic peroxides such as lipid hydroperoxides, and peroxynitrite; to this antioxidant activity also contribute peroxiredoxins, enzymes further involved in redox signaling and chaperone activity. Moreover, the detoxifying function of GSH is basically exerted in conjunction with glutathione transferases, which have also antioxidant properties. GSH is synthesized in the cytosol by the ATP-dependent enzymes glutamate cysteine ligase (GCL), which catalyzes ligation of cysteine and glutamate forming γ-glutamylcysteine (γ-GC), and glutathione synthase, which adds glycine to γ-GC resulting in GSH formation; GCL is rate-limiting for GSH synthesis, as is the precursor amino acid cysteine, which may be supplemented as N-acetylcysteine (NAC), a therapeutically available compound. After its cell export, GSH is degraded extracellularly by the membrane-anchored ectoenzyme γ-glutamyl transferase, a process occurring, as GSH synthesis and export, in the γ-glutamyl cycle. GSH degradation occurs also intracellularly by the cytoplasmic enzymatic ChaC family of γ-glutamyl cyclotransferase. Synthesis and degradation of GSH, together with its export, translocation to cell organelles, utilization for multiple essential functions, and regeneration from glutathione disulfide by glutathione reductase, are relevant to GSH homeostasis and metabolism. Notably, GSH levels decline during aging, an alteration generally related to impaired GSH biosynthesis and leading to cell dysfunction. However, there is evidence of enhanced GSH levels in elderly subjects with excellent physical and mental health status, suggesting that heightened GSH may be a marker and even a causative factor of increased healthspan and lifespan. Such aspects, and much more including GSH-boosting substances administrable to humans, are considered in this state-of-the-art review, which deals with GSH and GSH-dependent enzymes from biochemistry to gerontology, focusing attention also on lifespan/healthspan extension and successful aging; the significance of GSH levels in aging is considered also in relation to therapeutic possibilities and supplementation strategies, based on the use of various compounds including NAC-glycine, aimed at increasing GSH and related defenses to improve health status and counteract aging processes in humans.
Collapse
Affiliation(s)
- Domenico Lapenna
- Dipartimento di Medicina e Scienze dell'Invecchiamento, and Laboratorio di Fisiopatologia dello Stress Ossidativo, Center for Advanced Studies and Technology (CAST, former CeSI-MeT, Center of Excellence on Aging), Università degli Studi "G. d'Annunzio" Chieti Pescara, U.O.C. Medicina Generale 2, Ospedale Clinicizzato "Santissima Annunziata", Via dei Vestini, 66100 Chieti, Italy.
| |
Collapse
|
3
|
Ford NA, Spagnuolo P, Kraft J, Bauer E. Nutritional Composition of Hass Avocado Pulp. Foods 2023; 12:2516. [PMID: 37444254 DOI: 10.3390/foods12132516] [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: 04/28/2023] [Revised: 06/13/2023] [Accepted: 06/20/2023] [Indexed: 07/15/2023] Open
Abstract
Avocados (Persea americana) are a unique fruit that can provide health benefits when included in a healthy diet. As health care moves towards precision health and targeted therapies or preventative medicine, it is critical to understand foods and their dietary components. The nutritional composition and plant physiology of the Hass avocado is strikingly different from other fruits. This paper reviews the nutrient and bioactive composition of the edible portion of the Hass avocado (pulp) reported in the literature and from commercial lab analyses of the current market supply of fresh Hass avocados. These results provide comprehensive data on what nutrients and bioactives are in avocado and the quantity of these nutrients. We discuss the reasons for nutrient composition variations and review some potential health benefits of bioactive compounds found in Hass avocados.
Collapse
Affiliation(s)
- Nikki A Ford
- Avocado Nutrition Center, 25212 Marguerite Pkwy Ste. 250, Mission Viejo, CA 92692, USA
| | - Paul Spagnuolo
- Department of Food Science, University of Guelph, 50 Stone Rd., Guelph, ON N1G2W1, Canada
| | - Jana Kraft
- Department of Animal and Veterinary Sciences, The University of Vermont, 570 Main Street, Burlington, VT 05405, USA
| | - Ella Bauer
- Avocado Nutrition Center, 25212 Marguerite Pkwy Ste. 250, Mission Viejo, CA 92692, USA
| |
Collapse
|
4
|
Dordevic D, Capikova J, Dordevic S, Tremlová B, Gajdács M, Kushkevych I. Sulfur content in foods and beverages and its role in human and animal metabolism: A scoping review of recent studies. Heliyon 2023; 9:e15452. [PMID: 37123936 PMCID: PMC10130226 DOI: 10.1016/j.heliyon.2023.e15452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/24/2023] [Accepted: 04/10/2023] [Indexed: 05/02/2023] Open
Abstract
Sulfur is a vital element that all living things require, being a component of proteins and other bio-organic substances. The various kinds and varieties of microbes in nature allow for the transformation of this element. It also should be emphasized that volatile sulfur compounds are typically present in food in trace amounts. Life cannot exist without sulfur, yet it also poses a potential health risk. The colon's sulfur metabolism, which is managed by eukaryotic cells, is much better understood than the S metabolism in gastrointestinal bacteria. Numerous additional microbial processes are anticipated to have an impact on the content and availability of sulfated compounds, as well as intestinal S metabolism. Hydrogen sulfide is the sulfur derivative that has attracted the most attention in relation to colonic health, but it is still unclear whether it is beneficial or harmful. Several lines of evidence suggest that sulfate-reducing bacteria or exogenous hydrogen sulfide may be the root cause of intestinal ailments, including inflammatory bowel diseases and colon cancer. Taurine serves a variety of biological and physiological purposes, including roles in inflammation and protection, additionally, low levels of taurine can be found in bodily fluids, and taurine is the primary sulfur component present in muscle tissue (serum and urine). The aim of this scoping review was to compile data from the most pertinent scientific works about S compounds' existence in food and their metabolic processes. The importance of S compounds in various food products and how these compounds can impact metabolic processes are both stressed in this paper.
Collapse
Affiliation(s)
- Dani Dordevic
- Department of Plant Origin Food Sciences, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Palackého tř. 1946/1, 612 42, Brno, Czech Republic
| | - Jana Capikova
- Department of Plant Origin Food Sciences, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Palackého tř. 1946/1, 612 42, Brno, Czech Republic
| | - Simona Dordevic
- Department of Plant Origin Food Sciences, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Palackého tř. 1946/1, 612 42, Brno, Czech Republic
| | - Bohuslava Tremlová
- Department of Plant Origin Food Sciences, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Palackého tř. 1946/1, 612 42, Brno, Czech Republic
| | - Márió Gajdács
- Department of Oral Biology and Experimental Dental Research, Faculty of Dentistry, University of Szeged, Tisza Lajos krt. 64-66, 6720, Szeged, Hungary
| | - Ivan Kushkevych
- Department of Experimental Biology, Faculty of Science, Masaryk University, Kamenice 753/5, 62500, Brno, Czech Republic
- Corresponding author.
| |
Collapse
|
5
|
Al-Temimi AA, Al-Mossawi AEB, Al-Hilifi SA, Korma SA, Esatbeyoglu T, Rocha JM, Agarwal V. Glutathione for Food and Health Applications with Emphasis on Extraction, Identification, and Quantification Methods: A Review. Metabolites 2023; 13:metabo13040465. [PMID: 37110125 PMCID: PMC10141022 DOI: 10.3390/metabo13040465] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 02/27/2023] [Accepted: 03/13/2023] [Indexed: 04/29/2023] Open
Abstract
Glutathione is a naturally occurring compound that plays a crucial role in the cellular response to oxidative stress through its ability to quench free radicals, thus mitigating the risk of potential damage, including cell death. While glutathione is endogenously present in different plants and animal cells, their concentration varies considerably. The alteration in glutathione homeostasis can be used as a potential marker for human diseases. In the case of the depletion of endogenous glutathione, exogenous sources can be used to replenish the pool. To this end, both natural and synthetic glutathione can be used. However, the health benefit of glutathione from natural sources derived from fruits and vegetables is still debated. There is increasingly growing evidence of the potential health benefits of glutathione in different diseases; however, the determination and in situ quantification of endogenously produced glutathione remains a major challenge. For this reason, it has been difficult to understand the bioprocessing of exogenously delivered glutathione in vivo. The development of an in situ technique will also aid in the routine monitoring of glutathione as a biomarker for different oxidative stress-mediated diseases. Furthermore, an understanding of the in vivo bioprocessing of exogenously delivered glutathione will also aid the food industry both towards improving the longevity and profile of food products and the development of glutathione delivery products for long-term societal health benefits. In this review, we surveyed the natural plant-derived sources of glutathione, the identification and quantification of extracted glutathione from these sources, and the role of glutathione in the food industry and its effect on human health.
Collapse
Affiliation(s)
- Anfal Alwan Al-Temimi
- Department of Food Science, College of Agriculture, University of Basrah, Basrah 61014, Iraq
| | | | - Sawsan A Al-Hilifi
- Department of Food Science, College of Agriculture, University of Basrah, Basrah 61014, Iraq
| | - Sameh A Korma
- Department of Food Science, Faculty of Agriculture, Zagazig University, Zagazig 44519, Egypt
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Tuba Esatbeyoglu
- Department of Food Development and Food Quality, Institute of Food Science and Human Nutrition, Gottfried Wilhelm Leibniz University Hannover, Am Kleinen Felde 30, 30167 Hannover, Germany
| | - João Miguel Rocha
- Universidade Católica Portuguesa, CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
| | - Vipul Agarwal
- Cluster for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| |
Collapse
|
6
|
Narai-Kanayama A, Chiku K, Ono H, Momoi T, Hiwatashi-Kanno M, Kobayashi A, Matsuda H, Yoshida M, Nakayama T. Inhibitory effects of thiol compounds on theaflavin browning and structural analysis of the causative substances. Food Chem 2022; 384:132488. [DOI: 10.1016/j.foodchem.2022.132488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 01/19/2022] [Accepted: 02/14/2022] [Indexed: 11/04/2022]
|
7
|
di Corcia M, Tartaglia N, Polito R, Ambrosi A, Messina G, Francavilla VC, Cincione RI, della Malva A, Ciliberti MG, Sevi A, Messina G, Albenzio M. Functional Properties of Meat in Athletes' Performance and Recovery. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:5145. [PMID: 35564540 PMCID: PMC9102337 DOI: 10.3390/ijerph19095145] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 04/19/2022] [Accepted: 04/20/2022] [Indexed: 12/30/2022]
Abstract
Physical activity (PA) and sport play an essential role in promoting body development and maintaining optimal health status both in the short and long term. Despite the benefits, a long-lasting heavy training can promote several detrimental physiological changes, including transitory immune system malfunction, increased inflammation, and oxidative stress, which manifest as exercise-induced muscle damages (EIMDs). Meat and derived products represent a very good source of bioactive molecules such as proteins, lipids, amino acids, vitamins, and minerals. Bioactive molecules represent dietary compounds that can interact with one or more components of live tissue, resulting in a wide range of possible health consequences such as immune-modulating, antihypertensive, antimicrobial, and antioxidative activities. The health benefits of meat have been well established and have been extensively reviewed elsewhere, although a growing number of studies found a significant positive effect of meat molecules on exercise performance and recovery of muscle function. Based on the limited research, meat could be an effective post-exercise food that results in favorable muscle protein synthesis and metabolic performance.
Collapse
Affiliation(s)
- Martina di Corcia
- Department of Agriculture, Food, Natural Resources and Engineering (DAFNE), University of Foggia, 71100 Foggia, Italy; (M.d.C.); (A.d.M.); (M.G.C.); (A.S.)
| | - Nicola Tartaglia
- Department of Medical and Surgical Sciences, University of Foggia, 71100 Foggia, Italy; (N.T.); (A.A.)
| | - Rita Polito
- Department of Clinical and Experimental Medicine, University of Foggia, 71100 Foggia, Italy; (R.P.); (R.I.C.)
| | - Antonio Ambrosi
- Department of Medical and Surgical Sciences, University of Foggia, 71100 Foggia, Italy; (N.T.); (A.A.)
| | - Gaetana Messina
- Department of Translational Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy;
| | | | - Raffaele Ivan Cincione
- Department of Clinical and Experimental Medicine, University of Foggia, 71100 Foggia, Italy; (R.P.); (R.I.C.)
| | - Antonella della Malva
- Department of Agriculture, Food, Natural Resources and Engineering (DAFNE), University of Foggia, 71100 Foggia, Italy; (M.d.C.); (A.d.M.); (M.G.C.); (A.S.)
| | - Maria Giovanna Ciliberti
- Department of Agriculture, Food, Natural Resources and Engineering (DAFNE), University of Foggia, 71100 Foggia, Italy; (M.d.C.); (A.d.M.); (M.G.C.); (A.S.)
| | - Agostino Sevi
- Department of Agriculture, Food, Natural Resources and Engineering (DAFNE), University of Foggia, 71100 Foggia, Italy; (M.d.C.); (A.d.M.); (M.G.C.); (A.S.)
| | - Giovanni Messina
- Department of Clinical and Experimental Medicine, University of Foggia, 71100 Foggia, Italy; (R.P.); (R.I.C.)
| | - Marzia Albenzio
- Department of Agriculture, Food, Natural Resources and Engineering (DAFNE), University of Foggia, 71100 Foggia, Italy; (M.d.C.); (A.d.M.); (M.G.C.); (A.S.)
| |
Collapse
|
8
|
Bykanova MA, Solodilova MA, Azarova IE, Klyosova EY, Bushueva OY, Polonikova AA, Churnosov MI, Polonikov AV. Genetic variation at the catalytic subunit of glutamate cysteine ligase contributes to the susceptibility to sporadic colorectal cancer: a pilot study. Mol Biol Rep 2022; 49:6145-6154. [PMID: 35386070 DOI: 10.1007/s11033-022-07406-0] [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: 01/20/2022] [Accepted: 03/18/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND Glutathione is a tripeptide detoxifying a variety of exogenous and endogenous free radicals and carcinogens, and a deficiency of glutathione is associated with an increased host susceptibility to oxidative stress, a pathological condition implicated in the development and progression of cancer. The catalytic subunit of glutamate-cysteine ligase (GCLC) is an enzyme responsible for the initial and rate-limiting step of glutathione biosynthesis. METHODS AND RESULTS The aim of this pilot study was to investigate whether genetic variation at the GCLC gene contributes to the risk of colorectal cancer (CRC). DNA samples from 681 unrelated Russian individuals (283 patients with CRC and 398 age- and sex-matched healthy controls) were genotyped for six common functional SNPs of the GCLC gene (SNPs) such as rs12524494, rs17883901, rs606548, rs636933, rs648595 and rs761142 of the GCLC gene using the MassARRAY-4 system. We found that genotype rs606548-C/T is significantly associated with increased risk of CRC regardless of sex and age (OR 2.24; 95% CI 1.24-4.03; P = 0.007, FDR = 0.04). Moreover, ten GCLC genotype combinations showed association with the risk of CRC (P < 0.05). Functional SNP annotation enabled establishing the CRC-associated polymorphisms are associated with a decreased GCLC expression that may be attributed to epigenetic effects of histone modifications operating in a colon-specific manner. CONCLUSIONS The present study was the first to show that genetic variation at the catalytic subunit of glutamate-cysteine ligase may contribute to the risk of colorectal cancer risk. However, further genetic association studies with a larger sample size are required to substantiate the role of GCLC gene polymorphisms in the development of sporadic colorectal cancer.
Collapse
Affiliation(s)
- Marina A Bykanova
- Laboratory of Genomic Research, Research Institute for Genetic and Molecular Epidemiology, Kursk State Medical University, 18 Yamskaya St., Kursk, 305041, Russian Federation. .,Department of Biology, Medical Genetics and Ecology, Kursk State Medical University, 3 Karl Marx Street, Kursk, Russian Federation, 305041.
| | - Maria A Solodilova
- Department of Biology, Medical Genetics and Ecology, Kursk State Medical University, 3 Karl Marx Street, Kursk, Russian Federation, 305041
| | - Iuliia E Azarova
- Department of Biological Chemistry, Kursk State Medical University, 3 Karl Marx Street, Kursk, Russian Federation, 305041.,Laboratory of Biochemical Genetics and Metabolomics, Research Institute for Genetic and Molecular Epidemiology, Kursk State Medical University, 18 Yamskaya St., Kursk, Russian Federation, 305041
| | - Elena Y Klyosova
- Department of Biology, Medical Genetics and Ecology, Kursk State Medical University, 3 Karl Marx Street, Kursk, Russian Federation, 305041.,Laboratory of Biochemical Genetics and Metabolomics, Research Institute for Genetic and Molecular Epidemiology, Kursk State Medical University, 18 Yamskaya St., Kursk, Russian Federation, 305041
| | - Olga Y Bushueva
- Laboratory of Genomic Research, Research Institute for Genetic and Molecular Epidemiology, Kursk State Medical University, 18 Yamskaya St., Kursk, 305041, Russian Federation.,Department of Biology, Medical Genetics and Ecology, Kursk State Medical University, 3 Karl Marx Street, Kursk, Russian Federation, 305041
| | - Anna A Polonikova
- Department of Biology, Medical Genetics and Ecology, Kursk State Medical University, 3 Karl Marx Street, Kursk, Russian Federation, 305041
| | - Mikhail I Churnosov
- Department of Medical Biological Disciplines, Belgorod State University, 85 Pobedy Street, Belgorod, Russian Federation, 308015
| | - Alexey V Polonikov
- Department of Biology, Medical Genetics and Ecology, Kursk State Medical University, 3 Karl Marx Street, Kursk, Russian Federation, 305041.,Laboratory of Statistical Genetics and Bioinformatics, Research Institute for Genetic and Molecular Epidemiology, Kursk State Medical University, 18 Yamskaya St., Kursk, Russian Federation, 305041
| |
Collapse
|
9
|
Zhang A, Zeng L, Bo H, Hardie WJ. Sulphite‐corrected, non‐phenolic and phenolic antioxidant capacities of fruit wines profiled by differential Folin‐Ciocalteu assay. Int J Food Sci Technol 2021. [DOI: 10.1111/ijfs.15510] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Aihua Zhang
- China‐Australia Fruit Wine Research Centre Institute of Urban and Rural Mining Changzhou University 21 Gehu Road, Wujin Changzhou 213164 China
| | - Lingwen Zeng
- China‐Australia Fruit Wine Research Centre Institute of Urban and Rural Mining Changzhou University 21 Gehu Road, Wujin Changzhou 213164 China
| | - Huijie Bo
- China‐Australia Fruit Wine Research Centre Institute of Urban and Rural Mining Changzhou University 21 Gehu Road, Wujin Changzhou 213164 China
| | - William James Hardie
- China‐Australia Fruit Wine Research Centre Institute of Urban and Rural Mining Changzhou University 21 Gehu Road, Wujin Changzhou 213164 China
| |
Collapse
|
10
|
Xing L, Li G, Toldrá F, Zhang W. The physiological activity of bioactive peptides obtained from meat and meat by-products. ADVANCES IN FOOD AND NUTRITION RESEARCH 2021; 97:147-185. [PMID: 34311899 DOI: 10.1016/bs.afnr.2021.02.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Meat and meat products constitute an important source of nutrients and play vital roles for growth, maintenance and repair of the body. In addition to the high quality of proteins, meat is also regarded as a major resource to produce bioactive peptides. Meat processing industry also produces by-products such as bones, blood and viscera, which could be further used for the production of bioactive compounds. In the physiological analysis, meat bioactive peptides have been reported to exert antioxidant, anti-hypertensive, anti-inflammatory, anti-microbial and antitumoral activities, which endow nutritional and functional value of meat. With the objective to exert the functional effect, the bioavailability should also be considered due to the degradation by digestion enzymes and the absorption process in intestinal mucosa. In this chapter, the general source, the enzymatic hydrolysis, the physiological effects as well as the bioavailability of bioactive peptides in meat are discussed.
Collapse
Affiliation(s)
- Lujuan Xing
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, PR China
| | - Guanhao Li
- College of Agriculture, Yanbian University, Yanji, PR China
| | - Fidel Toldrá
- Instituto de Agroquímica y Tecnología de Alimentos (CSIC), Paterna, Valencia, Spain
| | - Wangang Zhang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, PR China.
| |
Collapse
|
11
|
Laffitte A, Gibbs M, Hernangomez de Alvaro C, Addison J, Lonsdale ZN, Giribaldi MG, Rossignoli A, Vennegeerts T, Winnig M, Klebansky B, Skiles J, Logan DW, McGrane SJ. Kokumi taste perception is functional in a model carnivore, the domestic cat (Felis catus). Sci Rep 2021; 11:10527. [PMID: 34006911 PMCID: PMC8131363 DOI: 10.1038/s41598-021-89558-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 04/28/2021] [Indexed: 01/03/2023] Open
Abstract
Kokumi taste is a well-accepted and characterised taste modality and is described as a sensation of enhancement of sweet, salty, and umami tastes. The Calcium Sensing Receptor (CaSR) has been designated as the putative kokumi taste receptor for humans, and a number of kokumi-active ligands of CaSR have been discovered recently with activity confirmed both in vivo and in vitro. Domestic cats (Felis catus) are obligate carnivores and accordingly, their diet is abundant in proteins, peptides, and amino acids. We hypothesised that CaSR is a key taste receptor for carnivores, due to its role in the detection of different peptides and amino acids in other species. Using in silico, in vitro and in vivo approaches, here we compare human CaSR to that of a model carnivore, the domestic cat. We found broad similarities in ligand specificity, but differences in taste sensitivity between the two species. Indeed our in vivo data shows that cats are sensitive to CaCl2 as a kokumi compound, but don't show this same activity with Glutathione, whereas for humans the reverse is true. Collectively, our data suggest that kokumi is an important taste modality for carnivores that drives the palatability of meat-derived compounds such as amino acids and peptides, and that there are differences in the perception of kokumi taste between carnivores and omnivores.
Collapse
Affiliation(s)
- A Laffitte
- WALTHAM Petcare Science Institute, Freeby Lane, Waltham on the Wolds, Melton Mowbray, Leicestershire, LE14 4RT, UK
| | - M Gibbs
- WALTHAM Petcare Science Institute, Freeby Lane, Waltham on the Wolds, Melton Mowbray, Leicestershire, LE14 4RT, UK
| | - C Hernangomez de Alvaro
- WALTHAM Petcare Science Institute, Freeby Lane, Waltham on the Wolds, Melton Mowbray, Leicestershire, LE14 4RT, UK
| | - J Addison
- WALTHAM Petcare Science Institute, Freeby Lane, Waltham on the Wolds, Melton Mowbray, Leicestershire, LE14 4RT, UK
| | - Z N Lonsdale
- WALTHAM Petcare Science Institute, Freeby Lane, Waltham on the Wolds, Melton Mowbray, Leicestershire, LE14 4RT, UK
| | - M G Giribaldi
- IMAX Discovery GmbH, Otto-Hahn-Straße 15, 44227, Dortmund, Germany.,AXXAM S.p.A., OpenZone, Via Meucci 3, 20091, Bresso, Milan, Italy
| | - A Rossignoli
- IMAX Discovery GmbH, Otto-Hahn-Straße 15, 44227, Dortmund, Germany.,AXXAM S.p.A., OpenZone, Via Meucci 3, 20091, Bresso, Milan, Italy
| | - T Vennegeerts
- IMAX Discovery GmbH, Otto-Hahn-Straße 15, 44227, Dortmund, Germany.,AXXAM S.p.A., OpenZone, Via Meucci 3, 20091, Bresso, Milan, Italy
| | - M Winnig
- IMAX Discovery GmbH, Otto-Hahn-Straße 15, 44227, Dortmund, Germany.,AXXAM S.p.A., OpenZone, Via Meucci 3, 20091, Bresso, Milan, Italy
| | - B Klebansky
- BioPredict, Inc., 4 Adele Avenue, Demarest, NJ, 07627, USA
| | - J Skiles
- BioPredict, Inc., 4 Adele Avenue, Demarest, NJ, 07627, USA.,Valis Pharma, Ins., 545 Bonair Way, La Jolla, CA, 92037, USA
| | - D W Logan
- WALTHAM Petcare Science Institute, Freeby Lane, Waltham on the Wolds, Melton Mowbray, Leicestershire, LE14 4RT, UK
| | - S J McGrane
- WALTHAM Petcare Science Institute, Freeby Lane, Waltham on the Wolds, Melton Mowbray, Leicestershire, LE14 4RT, UK.
| |
Collapse
|
12
|
Dennis KK, Liu KH, Uppal K, Go YM, Jones DP. Distribution of phytochelatins, metal-binding compounds, in plant foods: A survey of commonly consumed fruits, vegetables, grains and legumes. Food Chem 2021; 339:128051. [PMID: 32950899 PMCID: PMC8434803 DOI: 10.1016/j.foodchem.2020.128051] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 08/25/2020] [Accepted: 09/05/2020] [Indexed: 11/18/2022]
Abstract
Phytochelatins (PyCs) are metal-binding compounds produced by plants. PyCs may reduce bioavailability of dietary toxic metals such as cadmium. However, the PyC concentrations in foods are unknown. The objective of this study was to analyze PyC contents in a subset of commonly consumed plant foods. Foods (20) across five groups were analyzed and PyCs quantified using liquid chromatography-mass spectrometry (LC-MS/MS). The impact of factors such as food processing were also explored. PyCs were in all 20 foods. Five PyC types were detected with PyC2-Gly, PyC3-Gly and PyC2-Ala at quantifiable concentrations. PyC2-Gly was found at the highest concentrations and most widely distributed. PyC2-Gly concentrations were highest in fruits and root vegetables. Foods with increased processing tended to have reduced PyC concentrations. This survey of commonly consumed plant foods in the United States demonstrates PyCs are widely distributed and provides a foundation for understanding their concentrations and impact in the human diet.
Collapse
Affiliation(s)
- Kristine K Dennis
- Nutrition and Health Sciences, Laney Graduate School, Emory University, 615 Michael Street, 225 Whitehead Biomedical Research Building, Atlanta, GA 30322, USA
| | - Ken H Liu
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Emory University, 615 Michael Street, 225 Whitehead Biomedical Research Building, Atlanta, GA 30322, USA
| | - Karan Uppal
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Emory University, 615 Michael Street, 225 Whitehead Biomedical Research Building, Atlanta, GA 30322, USA
| | - Young-Mi Go
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Emory University, 615 Michael Street, 225 Whitehead Biomedical Research Building, Atlanta, GA 30322, USA
| | - Dean P Jones
- Nutrition and Health Sciences, Laney Graduate School, Emory University, 615 Michael Street, 225 Whitehead Biomedical Research Building, Atlanta, GA 30322, USA; Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Emory University, 615 Michael Street, 225 Whitehead Biomedical Research Building, Atlanta, GA 30322, USA.
| |
Collapse
|
13
|
Rodríguez-Bencomo JJ, Sanchis V, Viñas I, Martín-Belloso O, Soliva-Fortuny R. Formation of patulin-glutathione conjugates induced by pulsed light: A tentative strategy for patulin degradation in apple juices. Food Chem 2020; 315:126283. [PMID: 32000076 DOI: 10.1016/j.foodchem.2020.126283] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 01/20/2020] [Accepted: 01/21/2020] [Indexed: 11/18/2022]
Abstract
Patulin is a toxic mycotoxin usually associated with apple products. Due to its unhealthy effects for humans, its content is regulated by the food safety authorities. The removal or degradation of this mycotoxin in contaminated apple juices has been studied with different approaches with uneven effectiveness. However, a strategy based on the chemical reaction between patulin and glutathione (GSH), in order to generate the conjugates that are formed during cell detoxification process, is an innovative approach yet to be evaluated. In this work, the formation of patulin-GSH conjugates activated by the application of pulsed light treatments and catalyzed by Fe2+ ions was evaluated. The study of patulin degradation and effect of the GSH/Fe2+ molar ratio showed that a molar ratio of 5 allows an adequate catalytic effect of the metal ions. In addition, mono-substituted patulin-glutathione adducts were identified as the main type of generated conjugates.
Collapse
Affiliation(s)
- Juan José Rodríguez-Bencomo
- Food Technology Department, UTPV-XaRTA, Agrotecnio Center, University of Lleida, Rovira Roure 191, 25198 Lleida, Spain.
| | - Vicente Sanchis
- Food Technology Department, UTPV-XaRTA, Agrotecnio Center, University of Lleida, Rovira Roure 191, 25198 Lleida, Spain
| | - Inmaculada Viñas
- Food Technology Department, UTPV-XaRTA, Agrotecnio Center, University of Lleida, Rovira Roure 191, 25198 Lleida, Spain
| | - Olga Martín-Belloso
- Food Technology Department, UTPV-XaRTA, Agrotecnio Center, University of Lleida, Rovira Roure 191, 25198 Lleida, Spain
| | - Robert Soliva-Fortuny
- Food Technology Department, UTPV-XaRTA, Agrotecnio Center, University of Lleida, Rovira Roure 191, 25198 Lleida, Spain
| |
Collapse
|
14
|
Dennis KK, Uppal K, Liu KH, Ma C, Liang B, Go YM, Jones DP. Phytochelatin database: a resource for phytochelatin complexes of nutritional and environmental metals. DATABASE-THE JOURNAL OF BIOLOGICAL DATABASES AND CURATION 2020; 2019:5527149. [PMID: 31267134 PMCID: PMC6606759 DOI: 10.1093/database/baz083] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 05/27/2019] [Accepted: 05/29/2019] [Indexed: 12/28/2022]
Abstract
Phytochelatins (PyCs) are a diverse set of plant compounds that chelate metals, protect against metal toxicity and function in metal homeostasis. PyCs are present in plants consumed as food by humans and could, in principle, impact absorption and utilization of essential and toxic metals such as selenium and cadmium, respectively. PyCs vary in terminal amino acid composition and chain length, exist in multiple oxidation states and reversibly bind multiple metals; consequently, PyCs include a large set of possible structures. Although individual PyC-metal complexes have been studied, no resource exists to characterize the diversity of PyCs and PyC-metal complexes. We used the scientific literature to develop a database of elemental formulas for polymer forms varying in chain length from 2 to 11 glutamyl-cysteine repeats. Using elemental formulas, we calculated monoisotopic masses using the most abundant isotopes of each element and calculated masses for complexes with 13 metals of nutritional and toxicological significance. The resulting phytochelatin database (PyCDB) contains 46 260 unique elemental formulas for PyC and PyC-metal complexes. The database is available online for download as well as for direct mass queries for mass spectrometry using an accurate mass annotation tool for user-selected PyC types, metals and adducts of interest. We performed studies of a commonly consumed food—onion—to validate the database and test utility of the tool. Onion samples were analyzed using ultra-high resolution mass spectrometry-based metabolomics. Mass spectral features were annotated using the PyCDB web tool and the R package, xMSannotator; annotated features were further validated by collision-induced dissociation mass spectrometry. The results establish use and a workflow for PyCDB as a resource for characterization of PyCs and PyC-metal complexes.
Collapse
Affiliation(s)
- Kristine K Dennis
- Nutrition and Health Sciences, Laney Graduate School, Emory University, Atlanta, GA, USA.,Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Emory University, Atlanta, GA, USA
| | - Karan Uppal
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Emory University, Atlanta, GA, USA
| | - Ken H Liu
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Emory University, Atlanta, GA, USA
| | - Chunyu Ma
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Emory University, Atlanta, GA, USA
| | - Bill Liang
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Emory University, Atlanta, GA, USA
| | - Young-Mi Go
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Emory University, Atlanta, GA, USA
| | - Dean P Jones
- Nutrition and Health Sciences, Laney Graduate School, Emory University, Atlanta, GA, USA.,Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Emory University, Atlanta, GA, USA
| |
Collapse
|
15
|
Bhuyan DJ, Alsherbiny MA, Perera S, Low M, Basu A, Devi OA, Barooah MS, Li CG, Papoutsis K. The Odyssey of Bioactive Compounds in Avocado ( Persea americana) and Their Health Benefits. Antioxidants (Basel) 2019; 8:E426. [PMID: 31554332 PMCID: PMC6826385 DOI: 10.3390/antiox8100426] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 09/22/2019] [Accepted: 09/23/2019] [Indexed: 12/12/2022] Open
Abstract
Persea americana, commonly known as avocado, has recently gained substantial popularity and is often marketed as a "superfood" because of its unique nutritional composition, antioxidant content, and biochemical profile. However, the term "superfood" can be vague and misleading, as it is often associated with unrealistic health claims. This review draws a comprehensive summary and assessment of research performed in the last few decades to understand the nutritional and therapeutic properties of avocado and its bioactive compounds. In particular, studies reporting the major metabolites of avocado, their antioxidant as well as bioavailability and pharmacokinetic properties, are summarized and assessed. Furthermore, the potential of avocado in novel drug discovery for the prevention and treatment of cancer, microbial, inflammatory, diabetes, and cardiovascular diseases is highlighted. This review also proposes several interesting future directions for avocado research.
Collapse
Affiliation(s)
- Deep Jyoti Bhuyan
- NICM Health Research Institute, Western Sydney University, Penrith, NSW 2751, Australia.
| | - Muhammad A Alsherbiny
- NICM Health Research Institute, Western Sydney University, Penrith, NSW 2751, Australia.
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt.
| | - Saumya Perera
- NICM Health Research Institute, Western Sydney University, Penrith, NSW 2751, Australia.
| | - Mitchell Low
- NICM Health Research Institute, Western Sydney University, Penrith, NSW 2751, Australia.
| | - Amrita Basu
- Research Centre for Toxic Compounds in the Environment, Masaryk University, Brno 62500, Czech.
| | - Okram Abemsana Devi
- Department of Food Science and Nutrition, College of Community Science, Assam Agricultural University, Assam 785013, India.
| | - Mridula Saikia Barooah
- Department of Food Science and Nutrition, College of Community Science, Assam Agricultural University, Assam 785013, India.
| | - Chun Guang Li
- NICM Health Research Institute, Western Sydney University, Penrith, NSW 2751, Australia.
| | - Konstantinos Papoutsis
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland.
| |
Collapse
|
16
|
Dennis KK, Go YM, Jones DP. Redox Systems Biology of Nutrition and Oxidative Stress. J Nutr 2019; 149:553-565. [PMID: 30949678 PMCID: PMC6461723 DOI: 10.1093/jn/nxy306] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 10/30/2018] [Accepted: 11/19/2018] [Indexed: 02/07/2023] Open
Abstract
Diet and nutrition contribute to both beneficial and harmful aspects of oxidative processes. The harmful processes, termed oxidative stress, occur with many human diseases. Major advances in understanding oxidative stress and nutrition have occurred with broad characterization of dietary oxidants and antioxidants, and with mechanistic studies showing antioxidant efficacy. However, randomized controlled trials in humans with free-radical-scavenging antioxidants and the glutathione precursor N-acetylcysteine have provided limited or inconsistent evidence for health benefits. This, combined with emerging redox theory, indicates that holistic models are needed to understand the interplay of nutrition and oxidative stress. The purpose of this article is to highlight how recent advances in redox theory and the development of new omics tools and data-driven approaches provide a framework for future nutrition and oxidative stress research. Here we describe why a holistic approach is needed to understand the impact of nutrition on oxidative stress and how recent advances in omics and data analysis methods are viable tools for systems nutrition approaches. Based on the extensive research on glutathione and related thiol antioxidant systems, we summarize the advancing framework for diet and oxidative stress in which antioxidant systems are a component of a larger redox network that serves as a responsive interface between the environment and an individual. The feasibility for redox network analysis has been established by experimental models in which dietary factors are systematically varied and oxidative stress markers are linked through integrated omics (metabolome, transcriptome, proteome). With this framework, integrated redox network models will support optimization of diet to protect against oxidative stress and disease.
Collapse
Affiliation(s)
| | - Young-Mi Go
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Emory University, Atlanta, GA
| | - Dean P Jones
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Emory University, Atlanta, GA
| |
Collapse
|
17
|
Zhou R, Grant J, Goldberg EM, Ryland D, Aliani M. Investigation of low molecular weight peptides (<1 kDa) in chicken meat and their contribution to meat flavor formation. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:1728-1739. [PMID: 30226639 DOI: 10.1002/jsfa.9362] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 09/04/2018] [Accepted: 09/09/2018] [Indexed: 05/26/2023]
Abstract
BACKGROUND Low molecular weight peptides (LMWPs) (<1 kDa) generated in meat during chilled conditioning can act as flavor precursors in the Maillard reaction with a potential contribution to key volatile organic compound (VOC) formation upon heating. Liquid chromatography/quadrupole time-of-flight mass spectrometry (LC/QTOF-MS) successfully detected 44 LMWPs in chicken breast and thigh muscles stored at 4 °C for up to 6 days. Carnosine (350 mg per 100 g), glutathione (GSH, 20 mg per 100 g) (concentrations based on reported values in the literature) and cysteine glycine (Cys Gly, 5 mg per 100 g) (concentration based on results from LC/QTOF-MS) were used in model systems containing ribose (25 mg per 100 g). The three model systems were heated at 180 °C for 2 h at pH 6.3. VOCs were measured by simultaneous distillation solvent extraction/gas chromatography/mass spectrometry. RESULTS Of 33 VOCs detected, 26 were significantly different (P ≤ 0.05) between the three peptides. The majority of nitrogen-containing volatiles, pyrazines and pyridines, dominated the carnosine mixture, while sulfur-containing VOCs dominated the GSH and Cys Gly peptide mixtures. CONCLUSION Known key aroma compounds such as thiazole (meaty), 2-methyl-3-furanthiol (beef and meat), 2-furfurylthiol (roasted), dihydro-2-methyl-3(2H)-thiophenone (meaty), 2-acetylthiazole (meaty and roasted) and pyrazine (meaty) were detected under conditions specific to aged and thermally treated chicken, suggesting a potential contribution to the overall sensory quality of cooked meat. © 2018 Society of Chemical Industry.
Collapse
Affiliation(s)
- Ruiyin Zhou
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, Canada
| | - Jennifer Grant
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, Canada
| | - Erin M Goldberg
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, Canada
| | - Donna Ryland
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, Canada
| | - Michel Aliani
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, Canada
- The Canadian Centre for Agri-Food Research in Health and Medicine (CCARM), St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, Canada
| |
Collapse
|
18
|
Immunomodulatory Effects of Glutathione, Garlic Derivatives, and Hydrogen Sulfide. Nutrients 2019; 11:nu11020295. [PMID: 30704060 PMCID: PMC6412746 DOI: 10.3390/nu11020295] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 01/24/2019] [Accepted: 01/28/2019] [Indexed: 12/21/2022] Open
Abstract
Glutathione and aged garlic extract are sulfur-containing products that play important protective and regulatory roles within the immune system and in oxidative processes. Hydrogen sulfide (H2S), an endogenous, gaseous, signaling transmitter, has also been shown to be involved in the regulation of inflammation. Recent studies have shown that sulfur-containing compounds from garlic have beneficial effects in attenuating outcomes associated with cardiovascular disease and inflammation by a mechanism that may be related to the H2S signaling pathway. In this review, we summarize the main functions of glutathione (GSH), garlic derivatives and H2S and their role in the immune response and impact on health and disease.
Collapse
|
19
|
Moine L, Rivoira M, Díaz de Barboza G, Pérez A, Tolosa de Talamoni N. Glutathione depleting drugs, antioxidants and intestinal calcium absorption. World J Gastroenterol 2018; 24:4979-4988. [PMID: 30510373 PMCID: PMC6262252 DOI: 10.3748/wjg.v24.i44.4979] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 10/24/2018] [Accepted: 11/02/2018] [Indexed: 02/06/2023] Open
Abstract
Glutathione (GSH) is a tripeptide that constitutes one of the main intracellular reducing compounds. The normal content of GSH in the intestine is essential to optimize the intestinal Ca2+ absorption. The use of GSH depleting drugs such as DL-buthionine-S,R-sulfoximine, menadione or vitamin K3, sodium deoxycholate or diets enriched in fructose, which induce several features of the metabolic syndrome, produce inhibition of the intestinal Ca2+ absorption. The GSH depleting drugs switch the redox state towards an oxidant condition provoking oxidative/nitrosative stress and inflammation, which lead to apoptosis and/or autophagy of the enterocytes. Either the transcellular Ca2+ transport or the paracellular Ca2+ route are altered by GSH depleting drugs. The gene and/or protein expression of transporters involved in the transcellular Ca2+ pathway are decreased. The flavonoids quercetin and naringin highly abrogate the inhibition of intestinal Ca2+ absorption, not only by restoration of the GSH levels in the intestine but also by their anti-apoptotic properties. Ursodeoxycholic acid, melatonin and glutamine also block the inhibition of Ca2+ transport caused by GSH depleting drugs. The use of any of these antioxidants to ameliorate the intestinal Ca2+ absorption under oxidant conditions associated with different pathologies in humans requires more investigation with regards to the safety, pharmacokinetics and pharmacodynamics of them.
Collapse
Affiliation(s)
- Luciana Moine
- Laboratorio “Dr. Fernando Cañas”, Cátedra de Bioquímica y Biología Molecular, Facultad de Ciencias Médicas, INICSA (CONICET-Universidad Nacional de Córdoba), Córdoba 5000, Argentina
| | - María Rivoira
- Laboratorio “Dr. Fernando Cañas”, Cátedra de Bioquímica y Biología Molecular, Facultad de Ciencias Médicas, INICSA (CONICET-Universidad Nacional de Córdoba), Córdoba 5000, Argentina
| | - Gabriela Díaz de Barboza
- Laboratorio “Dr. Fernando Cañas”, Cátedra de Bioquímica y Biología Molecular, Facultad de Ciencias Médicas, INICSA (CONICET-Universidad Nacional de Córdoba), Córdoba 5000, Argentina
| | - Adriana Pérez
- Laboratorio “Dr. Fernando Cañas”, Cátedra de Bioquímica y Biología Molecular, Facultad de Ciencias Médicas, INICSA (CONICET-Universidad Nacional de Córdoba), Córdoba 5000, Argentina
| | - Nori Tolosa de Talamoni
- Laboratorio “Dr. Fernando Cañas”, Cátedra de Bioquímica y Biología Molecular, Facultad de Ciencias Médicas, INICSA (CONICET-Universidad Nacional de Córdoba), Córdoba 5000, Argentina
| |
Collapse
|
20
|
Wang RS, Oldham WM, Maron BA, Loscalzo J. Systems Biology Approaches to Redox Metabolism in Stress and Disease States. Antioxid Redox Signal 2018; 29:953-972. [PMID: 29121773 PMCID: PMC6104248 DOI: 10.1089/ars.2017.7256] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 10/12/2017] [Accepted: 11/04/2017] [Indexed: 02/06/2023]
Abstract
SIGNIFICANCE All cellular metabolic processes are tied to the cellular redox environment. Therefore, maintaining redox homeostasis is critically important for normal cell function. Indeed, redox stress contributes to the pathobiology of many human diseases. The cellular redox response system is composed of numerous interconnected components, including free radicals, redox couples, protein thiols, enzymes, metabolites, and transcription factors. Moreover, interactions between and among these factors are regulated in time and space. Owing to their complexity, systems biology approaches to the characterization of the cellular redox response system may provide insights into novel homeostatic mechanisms and methods of therapeutic reprogramming. Recent Advances: The emergence and development of systems biology has brought forth a set of innovative technologies that provide new avenues for studying redox metabolism. This article will review these systems biology approaches and their potential application to the study of redox metabolism in stress and disease states. CRITICAL ISSUES Clarifying the scope of biological intermediaries affected by dysregulated redox metabolism requires methods that are suitable for analyzing big datasets as classical methods that do not account for multiple interactions are unlikely to portray the totality of perturbed metabolic systems. FUTURE DIRECTIONS Given the diverse redox microenvironments within cells, it will be important to improve the spatial resolution of omic approaches. Futures studies on the integration of multiple systems-based methods and heterogeneous omics data for redox metabolism are required to accelerate the development of the field of redox systems biology. Antioxid. Redox Signal. 29, 953-972.
Collapse
Affiliation(s)
- Rui-Sheng Wang
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - William M. Oldham
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Bradley A. Maron
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
- Section of Cardiology, Veterans Affairs Boston Healthcare System, West Roxbury, Massachusetts
| | - Joseph Loscalzo
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| |
Collapse
|
21
|
Park D, Xu G, Barboza M, Shah IM, Wong M, Raybould H, Mills DA, Lebrilla CB. Enterocyte glycosylation is responsive to changes in extracellular conditions: implications for membrane functions. Glycobiology 2018; 27:847-860. [PMID: 28486580 DOI: 10.1093/glycob/cwx041] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Accepted: 05/05/2017] [Indexed: 12/20/2022] Open
Abstract
Epithelial cells in the lining of the intestines play critical roles in maintaining homeostasis while challenged by dynamic and sudden changes in luminal contents. Given the high density of glycosylation that encompasses their extracellular surface, environmental changes may lead to extensive reorganization of membrane-associated glycans. However, neither the molecular details nor the consequences of conditional glycan changes are well understood. Here we assessed the sensitivity of Caco-2 and HT-29 membrane N-glycosylation to variations in (i) dietary elements, (ii) microbial fermentation products and (iii) cell culture parameters relevant to intestinal epithelial cell growth and survival. Based on global LC-MS glycomic and statistical analyses, the resulting glycan expression changes were systematic, dependent upon the conditions of each controlled environment. Exposure to short chain fatty acids produced significant increases in fucosylation while further acidification promoted hypersialylation. Notably, among all conditions, increases of high mannose type glycans were identified as a major response when extracellular fructose, galactose and glutamine were independently elevated. To examine the functional consequences of this discrete shift in the displayed glycome, we applied a chemical inhibitor of the glycan processing mannosidase, globally intensifying high mannose expression. The data reveal that upregulation of high mannose glycosylation has detrimental effects on basic intestinal epithelium functions by altering permeability, host-microbe associations and membrane protein activities.
Collapse
Affiliation(s)
| | | | - Mariana Barboza
- Department of Chemistry.,Department of Anatomy, Physiology and Cell Biology
| | - Ishita M Shah
- Department of Food Science and Technology, University of California, 1 Shields Ave, Davis, CA 95616,USA
| | | | | | - David A Mills
- Department of Food Science and Technology, University of California, 1 Shields Ave, Davis, CA 95616,USA
| | | |
Collapse
|
22
|
Mischley LK, Lau RC, Shankland EG, Wilbur TK, Padowski JM. Phase IIb Study of Intranasal Glutathione in Parkinson's Disease. JOURNAL OF PARKINSONS DISEASE 2018; 7:289-299. [PMID: 28436395 PMCID: PMC5438472 DOI: 10.3233/jpd-161040] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Reduced glutathione (GSH) is an endogenously synthesized tripeptide depleted early in the course of Parkinson's disease (PD) and GSH augmentation has been proposed as a therapeutic strategy in PD. OBJECTIVE This Phase IIb study was designed to evaluate whether a Phase III study of intranasal GSH, (in)GSH, for symptomatic relief is warranted and to determine the most appropriate trial design for a disease-modification study. METHODS This was a double-blind, placebo-controlled trial of 45 individuals with Hoehn & Yahr Stage 1-3 PD. Participants were randomized to receive intranasal placebo (saline), 100 mg GSH, or 200 mg GSH thrice daily for three months, and were observed over a one-month washout period. RESULTS All cohorts improved over the intervention period, including placebo. The high-dose group demonstrated improvement in total Unified PD Rating Scale (UPDRS) (-4.6 (4.7), P = 0.0025) and UPDRS motor subscore (-2.2 (3.8), P = 0.0485) over baseline, although neither treatment group was superior to placebo. One participant in the high-dose GSH cohort developed cardiomyopathy. CONCLUSIONS Although predicted improvements in PD total and motor scores were observed, these data do not suggest (in)GSH is superior to placebo after a three month intervention. The symptomatic effects are sufficient to warrant a delayed-start or wash-out design study for disease-modification trials. Whether long-term use of (in)GSH leads to clinical improvements that are sustained and significantly different than placebo will require appropriately-powered longer-duration studies in larger cohorts. The improvement in the placebo arm was more robust than has been observed in previous PD studies and warrants further investigation.
Collapse
Affiliation(s)
- Laurie K Mischley
- Bastyr University Research Institute, Kenmore, WA, USA.,University of Washington (UW) Department of Radiology, Seattle, WA, USA
| | | | - Eric G Shankland
- University of Washington (UW) Department of Radiology, Seattle, WA, USA
| | - Timothy K Wilbur
- University of Washington (UW) Department of Radiology, Seattle, WA, USA
| | - Jeannie M Padowski
- Washington State University,Elson S. Floyd College of Medicine, College of Pharmacy, Spokane, WA, USA
| |
Collapse
|
23
|
Uchida H, Nakajima Y, Ohtake K, Ito J, Morita M, Kamimura A, Kobayashi J. Protective effects of oral glutathione on fasting-induced intestinal atrophy through oxidative stress. World J Gastroenterol 2017; 23:6650-6664. [PMID: 29085210 PMCID: PMC5643286 DOI: 10.3748/wjg.v23.i36.6650] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 07/14/2017] [Accepted: 07/24/2017] [Indexed: 02/06/2023] Open
Abstract
AIM To determine whether oral glutathione (GSH) administration can alleviate the effects of fasting-induced intestinal atrophy in the small intestinal mucosa.
METHODS Rats were divided into eight groups. One group was fed ad libitum, another was fed ad libitum and received oral GSH, and six groups were administrated saline (SA) or GSH orally during fasting. Mucosal height, apoptosis, and cell proliferation in the jejunum were histologically evaluated. iNOS protein expression (by immunohistochemistry), nitrite levels (by high performance liquid chromatography, as a measure of NO production), 8-hydroxydeoxyguanosine formation (by ELISA, indicating ROS levels), glutathione/oxidized glutathione (GSH/GSSG) ratio (by enzymatic colorimetric detection), and γ-glutamyl transpeptidase (Ggt1) mRNA levels in the jejunum (by semi-quantitative RT-PCR) were also estimated.
RESULTS Oral GSH administration was demonstrated to drastically reduce fasting-induced intestinal atrophy in the jejunum. In particular, jejunal mucosal height was enhanced in GSH-treated animals compared to SA-treated animals [527.2 ± 6.9 for 50 mg/kg GSH, 567.6 ± 5.4 for 500 mg/kg GSH vs 483.1 ± 4.9 (μm), P < 0.01 at 72 h]. This effect was consistent with decreasing changes in GSH-treated animals compared to SA-treated animals for iNOS protein staining [0.337 ± 0.016 for 50 mg/kg GSH, 0.317 ± 0.017 for 500 mg/kg GSH vs 0.430 ± 0.023 (area of staining part/area of tissue), P < 0.01 at 72 h] and NO [2.99 ± 0.29 for 50 mg/kg GSH, 2.88 ± 0.19 for 500 mg/kg GSH vs 5.34 ± 0.35 (nmol/g tissue), P < 0.01 at 72 h] and ROS [3.92 ± 0.46 for 50 mg/kg GSH, 4.58 ± 0.29 for 500 mg/kg GSH vs 6.42 ± 0.52 (8-OHdG pg/μg DNA), P < 0.01, P < 0.05 at 72 h, respectively] levels as apoptosis mediators in the jejunum. Furthermore, oral GSH administration attenuated cell proliferation decreases in the fasting jejunum [182.5 ± 1.9 for 500 mg/kg GSH vs 155.8 ± 3.4 (5-BrdU positive cells/10 crypts), P < 0.01 at 72 h]. Notably, both GSH concentration and Ggt1 mRNA expression in the jejunum were also attenuated in rats following oral administration of GSH during fasting as compared with fasting alone [0.45 ± 0.12 vs 0.97 ± 0.06 (nmol/mg tissue), P < 0.01; 1.01 ± 0.11 vs 2.79 ± 0.39 (Ggt1 mRNA/Gapdh mRNA), P < 0.01 for 500 mg/kg GSH at 48 h, respectively].
CONCLUSION Oral GSH administration during fasting enhances jejunal regenerative potential to minimize intestinal mucosal atrophy by diminishing fasting-mediated ROS generation and enterocyte apoptosis and enhancing cell proliferation.
Collapse
Affiliation(s)
- Hiroyuki Uchida
- Division of Pathophysiology, Department of Clinical Dietetics and Human Nutrition, Faculty of Pharmaceutical Science, Josai University, Sakado, Saitama 350-0295, Japan
| | - Yukari Nakajima
- Division of Pathophysiology, Department of Clinical Dietetics and Human Nutrition, Faculty of Pharmaceutical Science, Josai University, Sakado, Saitama 350-0295, Japan
| | - Kazuo Ohtake
- Division of Pathophysiology, Department of Clinical Dietetics and Human Nutrition, Faculty of Pharmaceutical Science, Josai University, Sakado, Saitama 350-0295, Japan
| | - Junta Ito
- Division of Pathophysiology, Department of Clinical Dietetics and Human Nutrition, Faculty of Pharmaceutical Science, Josai University, Sakado, Saitama 350-0295, Japan
| | - Masahiko Morita
- Kyowa Hakko Bio Co., Ltd. Healthcare Products Development Center, Tsukuba-shi, Ibaraki 305-0841, Japan
| | - Ayako Kamimura
- Kyowa Hakko Bio Co., Ltd. Healthcare Products Development Center, Tsukuba-shi, Ibaraki 305-0841, Japan
| | - Jun Kobayashi
- Division of Pathophysiology, Department of Clinical Dietetics and Human Nutrition, Faculty of Pharmaceutical Science, Josai University, Sakado, Saitama 350-0295, Japan
| |
Collapse
|
24
|
CERİT İ, SARIÇAM A, DEMİRKOL O, ÜNVER H, SAKAR E, COŞANSU S. Comparative study of functional properties of eight walnut (Juglans regia L.) genotypes. FOOD SCIENCE AND TECHNOLOGY 2017. [DOI: 10.1590/1678-457x.20516] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
25
|
Kalaras MD, Richie JP, Calcagnotto A, Beelman RB. Mushrooms: A rich source of the antioxidants ergothioneine and glutathione. Food Chem 2017; 233:429-433. [PMID: 28530594 DOI: 10.1016/j.foodchem.2017.04.109] [Citation(s) in RCA: 156] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 03/13/2017] [Accepted: 04/18/2017] [Indexed: 10/19/2022]
Abstract
While mushrooms are the highest dietary source for the unique sulfur-containing antioxidant ergothioneine, little is known regarding levels of the major biological antioxidant glutathione. Thus, our objectives were to determine and compare levels of glutathione, as well as ergothioneine, in different species of mushrooms. Glutathione levels varied >20-fold (0.11-2.41mg/gdw) with some varieties having higher levels than reported for other foods. Ergothioneine levels also varied widely (0.15-7.27mg/gdw) and were highly correlated with those of glutathione (r=0.62, P<0.001). Both antioxidants were more concentrated in pileus than stipe tissues in selected mushrooms species. Agaricus bisporus harvested during the third cropping flush contained higher levels of ergothioneine and glutathione compared to the first flush, possibly as a response to increased oxidative stress. This study demonstrated that certain mushroom species are high in glutathione and ergothioneine and should be considered an excellent dietary source of these important antioxidants.
Collapse
Affiliation(s)
- Michael D Kalaras
- Center for Plant and Mushroom Foods for Health, Department of Food Science, The Pennsylvania State University, 202 Rodney A. Erickson Food Science Building, University Park, PA 16802, United States.
| | - John P Richie
- Department of Public Health Sciences, The Pennsylvania State University College of Medicine, 500 University Drive, Hershey, PA 17033, United States.
| | - Ana Calcagnotto
- Department of Public Health Sciences, The Pennsylvania State University College of Medicine, 500 University Drive, Hershey, PA 17033, United States.
| | - Robert B Beelman
- Center for Plant and Mushroom Foods for Health, Department of Food Science, The Pennsylvania State University, 202 Rodney A. Erickson Food Science Building, University Park, PA 16802, United States.
| |
Collapse
|
26
|
Comerford KB, Ayoob KT, Murray RD, Atkinson SA. The Role of Avocados in Complementary and Transitional Feeding. Nutrients 2016; 8:E316. [PMID: 27213450 PMCID: PMC4882728 DOI: 10.3390/nu8050316] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 03/17/2016] [Accepted: 03/29/2016] [Indexed: 12/11/2022] Open
Abstract
Infant dietary patterns tend to be insufficient sources of fruits, vegetables, and fiber, as well as excessive in salt, added sugars, and overall energy. Despite the serious long-term health risks associated with suboptimal fruit and vegetable intake, a large percentage of infants and toddlers in the U.S. do not consume any fruits or vegetables on a daily basis. Since not all fruits and vegetables are nutritionally similar, guidance on the optimal selection of fruits and vegetables should emphasize those with the greatest potential for nutrition and health benefits. A challenge is that the most popularly consumed fruits for this age group (i.e., apples, pears, bananas, grapes, strawberries) do not closely fit the current general recommendations since they tend to be overly sweet and/or high in sugar. Unsaturated oil-containing fruits such as avocados are nutritionally unique among fruits in that they are lower in sugar and higher in fiber and monounsaturated fatty acids than most other fruits, and they also have the proper consistency and texture for first foods with a neutral flavor spectrum. Taken together, avocados show promise for helping to meet the dietary needs of infants and toddlers, and should be considered for inclusion in future dietary recommendations for complementary and transitional feeding.
Collapse
Affiliation(s)
- Kevin B Comerford
- Department of Nutrition, University of California at Davis, Davis, CA 95616, USA.
| | - Keith T Ayoob
- Department of Pediatrics, Albert Einstein College of Medicine, Bronx, NY 10461, USA.
| | - Robert D Murray
- Department of Human Sciences, The Ohio State University, Columbus, OH 43210, USA.
| | | |
Collapse
|
27
|
Mons U, Muscat JE, Modesto J, Richie JP, Brenner H. Effect of smoking reduction and cessation on the plasma levels of the oxidative stress biomarker glutathione--Post-hoc analysis of data from a smoking cessation trial. Free Radic Biol Med 2016; 91:172-7. [PMID: 26708755 PMCID: PMC4761461 DOI: 10.1016/j.freeradbiomed.2015.12.018] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 12/15/2015] [Accepted: 12/17/2015] [Indexed: 11/22/2022]
Abstract
Cigarette smoke contains high concentrations of free radical components that induce oxidative stress. Smoking-induced oxidative stress is thought to contribute to chronic obstructive pulmonary disease, cardiovascular disease and lung cancer through degenerative processes in the lung and other tissues. It is uncertain however whether smoking cessation lowers the burden of oxidative stress. We used data from a randomized controlled cessation trial of 434 current smokers for a post-hoc examination of the effects of smoking cessation on blood plasma levels of total glutathione (tGSH), the most abundant endogenous antioxidant in cells, and total cysteine (tCys), an amino acid and constituent of glutathione. Smoking status was validated based on serum cotinine levels. Multivariate linear mixed models were fitted to examine the association of smoking cessation and change in cigarette consumption with tGSH and tCys. After 12 months follow-up, quitters (n=55) had significantly increased levels of tGSH compared to subjects who continued to smoke (P<0.01). No significant change in tGSH was found for subjects who continued to smoke but reduced their intensity of smoking. No significant effect of smoking cessation or reduction was observed on levels of tCys. These results suggest that smoking cessation but not smoking reduction reduces levels of oxidative stress.
Collapse
Affiliation(s)
- Ute Mons
- German Cancer Research Center (DKFZ), Division of Clinical Epidemiology and Aging Research, Heidelberg, Germany.
| | - Joshua E Muscat
- Pennsylvania State University College of Medicine, Department of Public Health Sciences, Hershey, PA, USA
| | - Jennifer Modesto
- Pennsylvania State University College of Medicine, Department of Public Health Sciences, Hershey, PA, USA
| | - John P Richie
- Pennsylvania State University College of Medicine, Department of Public Health Sciences, Hershey, PA, USA
| | - Hermann Brenner
- German Cancer Research Center (DKFZ), Division of Clinical Epidemiology and Aging Research, Heidelberg, Germany; Division of Preventive Oncology, German Cancer Research Center (DKFZ) and National Center for Tumor Diseases (NCT), Heidelberg, Germany; German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany
| |
Collapse
|
28
|
Maliar T, Slaba G, Nemeček P, Maliarová M, Benková M, Havrlentová M, Ondrejovič M, Kraic J. Antioxidants, Enzyme Inhibitors, and Biogenic Compounds in Grain Extracts of Barleys. Chem Biodivers 2015; 12:1678-95. [DOI: 10.1002/cbdv.201400419] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Indexed: 02/06/2023]
|
29
|
Ji L, Gao W, Wei J, Pu L, Yang J, Guo C. In Vivo Antioxidant Properties of Lotus Root and Cucumber: A Pilot Comparative Study in Aged Subjects. J Nutr Health Aging 2015; 19:765-70. [PMID: 26193861 DOI: 10.1007/s12603-015-0524-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To compare the effects of lotus root and cucumber on antioxidant function in aged subjects. DESIGN Pilot comparative study. SETTING Research setting with vegetable intervention. PARTICIPANTS Healthy aged subjects over the age of sixty. INTERVENTION 30-day supplementation of lotus root or cucumber powder. MEASUREMENTS Plasma value of ferric reducing antioxidant power assay, activity of antioxidant enzymes, contents of some antioxidants, oxidation products, hemolysis, blood mononuclear cell DNA damage and urinary excretion of 8-hydroxy-2'-deoxyguanosine were measured before and after the intervention. RESULTS Plasma glutathione peroxidase activity, contents of vitamin C, total phenolics were significantly increased, while plasma uric acid content significantly decreased in both groups at the end of the intervention. Meanwhile, hemolysis was significantly reduced in both groups and DNA injury rate of blood mononuclear cells in lotus root group and the ratio of comet tail length to total length in cucumber group were also declined significantly post-intervention. However, plasma value of ferric reducing antioxidant power assay, contents of reduced glutathione, vitamin E, malondialdehyde, oxidized low density lipoprotein, carbonyls and activity of superoxide dismutase and catalase were not changed significantly in both group after the intervention. CONCLUSION These results suggest that lotus root and cucumber are not remarkably different in improving antioxidant function in aged subjects, though they are significantly different in antioxidant capacity in vitro. The benefits observed in this study may come from the additive or synergistic combinations of antioxidants contained in vegetables.
Collapse
Affiliation(s)
- L Ji
- Changjiang Guo, Department of Nutrition, Tianjin Institute of Health and Environmental Medicine, Tianjin, 300050, P. R. China, Tel.: +86 22 84655429; fax: + 86 22 84655020, E-mail:
| | | | | | | | | | | |
Collapse
|
30
|
Abstract
BACKGROUND AND OBJECTIVE Consensus nutritional guidelines for patients with cystic fibrosis (CF) recommend aggressive treatment of growth failure. Oral reduced glutathione (GSH) has been shown to improve cachexia and case reports have demonstrated improved growth in pediatric patients with CF. No controlled studies using oral GSH in CF have, however, been reported. The aim of the study was to determine whether oral GSH could improve growth in CF. Secondarily, to determine whether oral GSH could improve other systemic clinical markers. METHODS We performed a placebo-controlled, randomized, double-blind, repeated-measures clinical trial in 44 pediatric patients with CF ages 18 months to 10 years. Primary outcomes were change in weight percentile, body mass index (BMI) percentile, height percentile, and fecal calprotectin. Secondary outcomes included liver function tests and measures of systemic inflammation. Each participant was studied for 6 months, with data obtained at baseline, 3 months, and 6 months. Blood samples were obtained on the baseline and 6-month visits. Subjects were treated with oral GSH or placebo (calcium citrate), each 65 mg · kg(-1) · day(-1) divided into 3 doses per day at mealtimes, and administered daily for 6 months. RESULTS The GSH treatment group gained an average of 0.67 standard deviation (SD) in weight-for-age-and sex z score (wfaszs), (19.1 weight percentile points) during the course of 6 months, with no adverse effects (vs placebo with an increase of 0.1 SD in wfaszs [2.1 weight percentile points], P < 0.0001). Fecal calprotectin improved, GSH -52.0 vs placebo 0.5), also BMI for GSH improved 0.69 SD BMI-adjusted-for-age-and-sex z score versus placebo 0.22 SD (BMI percentile 21.7 GSH vs 5.2 placebo), and height 0.2 SD in height-for-age-and-sex z score (hfaszs) GSH versus -0.06 SD hfaszs placebo [height percentile 7.0 GSH vs -2.6 placebo], all P < 0.0001). Secondary outcomes improved significantly, as well. CONCLUSIONS Oral reduced L-GSH significantly improves measures of growth status and gut inflammation in CF.
Collapse
|
31
|
Rascio A, Picchi V, Naldi JP, Colecchia S, De Santis G, Gallo A, Carlino E, Lo Scalzo R, De Gara L. Effects of temperature increase, through spring sowing, on antioxidant power and health-beneficial substances of old and new wheat varieties. J Cereal Sci 2015. [DOI: 10.1016/j.jcs.2014.09.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
32
|
Ji L, Gao W, Wei J, Wu J, Yang J, Meng B, Guo C. No correlation is found for vegetables between antioxidant capacity and potential benefits in improving antioxidant function in aged rats. J Clin Biochem Nutr 2014; 54:198-203. [PMID: 24895483 PMCID: PMC4039079 DOI: 10.3164/jcbn.13-95] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Accepted: 01/15/2014] [Indexed: 12/17/2022] Open
Abstract
Vegetables vary greatly in antioxidant capacity in vitro. This study was to investigate the actions of three vegetables different remarkably in antioxidant capacity in vitro on antioxidant function in aged rats. Sixty female aged Wistar rats were randomly assigned to the control, lotus root, rape and cucumber (high, moderate and low in antioxidant capacity, respectively) treated groups. After 6 weeks of feeding, there were no significant differences in plasma FRAP value and contents of vitamin C, vitamin E, uric acid and total phenolics among different groups, whereas the content of reduced glutathione was significantly higher in the rape and cucumber groups. Plasma superoxide dismutase activity also was significantly increased in the rape and cucumber groups. Plasma contents of malondialdehyde, carbonyls and hemolysis were decreased significantly in 3 vegetable-treated groups. Meanwhile, urinary 8-hydroxy-2'-deoxyguanosine excretion was lower significantly in the rape group and the ratio of comet tail length to total length of blood mononuclear cells was decreased significantly in 3 vegetables treated groups. These results suggest that 3 vegetables tested are effective in improving antioxidant function to some extent in aged rats and no correlation is found between antioxidant capacity in vitro and improvements of antioxidant function. The benefits observed in this study may come from additive or synergistic combinations of antioxidants contained in vegetables.
Collapse
Affiliation(s)
- Linlin Ji
- Department of Nutrition, Institute of Health and Environmental Medicine, Tianjin 300050, China
| | - Weina Gao
- Department of Nutrition, Institute of Health and Environmental Medicine, Tianjin 300050, China
| | - Jingyu Wei
- Department of Nutrition, Institute of Health and Environmental Medicine, Tianjin 300050, China
| | - Jianquan Wu
- Department of Nutrition, Institute of Health and Environmental Medicine, Tianjin 300050, China
| | - Jijun Yang
- Department of Nutrition, Institute of Health and Environmental Medicine, Tianjin 300050, China
| | - Bin Meng
- Department of Nutrition, Institute of Health and Environmental Medicine, Tianjin 300050, China
| | - Changjiang Guo
- Department of Nutrition, Institute of Health and Environmental Medicine, Tianjin 300050, China
| |
Collapse
|
33
|
Abstract
Nutraceuticals are food products that that can provide medical or health benefits by preventing or treating disease processes. The high costs associated with assisted reproductive techniques for male infertility have led consumers to find less expensive alternatives for potential treatment. Nutraceuticals are widely available and have many antioxidant properties. This articles reviews the current English literature regarding readily available nutraceuticals and their potential effects on male infertility and potential side effects with excess intake.
Collapse
|
34
|
Abstract
Sulfur is the seventh most abundant element measurable in the human body and is supplied mainly by the intake of methionine (Met), an indispensable amino acid found in plant and animal proteins. Met controls the initiation of protein synthesis, governs major metabolic and catalytic activities, and may undergo reversible redox processes safeguarding protein integrity. Withdrawal of Met from customary diets causes the greatest downsizing of lean body mass following either unachieved replenishment (malnutrition) or excessive losses (inflammation). These physiopathologically unrelated morbidities nevertheless stimulate comparable remethylation reactions from homocysteine, indicating that Met homeostasis benefits from high metabolic priority. Inhibition of cystathionine-β-synthase activity causes the upstream sequestration of homocysteine and the downstream drop in cysteine and glutathione. Consequently, the enzymatic production of hydrogen sulfide and the nonenzymatic reduction of elemental sulfur to hydrogen sulfide are impaired. Sulfur operates as cofactor of several enzymes critically involved in the regulation of oxidative processes. A combination of malnutrition and nutritional deprivation of sulfur maximizes the risk of cardiovascular disorders and stroke, constituting a novel clinical entity that threatens plant-eating population groups.
Collapse
Affiliation(s)
- Yves Ingenbleek
- Laboratory of Nutrition, Faculty of Pharmacy, University Louis Pasteur, Strasbourg, France.
| | | |
Collapse
|
35
|
Abstract
Hass avocados, the most common commercial avocado cultivars in the world, contain a variety of essential nutrients and important phytochemicals. Although the official avocado serving is one-fifth of a fruit (30 g), according to NHANES analysis the average consumption is one-half an avocado (68 g), which provides a nutrient and phytochemical dense food consisting of the following: dietary fiber (4.6 g), total sugar (0.2 g), potassium (345 mg), sodium (5.5 mg), magnesium (19.5 mg), vitamin A (43 μg), vitamin C (6.0 mg), vitamin E (1.3 mg), vitamin K1 (14 μg), folate (60 mg), vitamin B-6 (0.2 mg), niacin (1.3 mg), pantothenic acid (1.0 mg), riboflavin (0.1 mg), choline (10 mg), lutein/zeaxanthin (185 μg), phytosterols (57 mg), and high-monounsaturated fatty acids (6.7 g) and 114 kcals or 1.7 kcal/g. The avocado oil consists of 71% monounsaturated fatty acids (MUFA), 13% polyunsaturated fatty acids (PUFA), and 16% saturated fatty acids (SFA), which helps to promote healthy blood lipid profiles and enhance the bioavailability of fat soluble vitamins and phytochemicals from the avocado or other fruits and vegetables, naturally low in fat, which are consumed with avocados. There are eight preliminary clinical studies showing that avocado consumption helps support cardiovascular health. Exploratory studies suggest that avocados may support weight management and healthy aging.
Collapse
Affiliation(s)
- Mark L Dreher
- Nutrition Science Solutions LLC, 900 S. Rainbow Ranch Road, Wimberley, TX 78676, USA.
| | | |
Collapse
|
36
|
Zieliński H, del Castillo MD, Przygodzka M, Ciesarova Z, Kukurova K, Zielińska D. Changes in chemical composition and antioxidative properties of rye ginger cakes during their shelf-life. Food Chem 2012; 135:2965-73. [PMID: 22980898 DOI: 10.1016/j.foodchem.2012.07.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2012] [Revised: 05/19/2012] [Accepted: 07/02/2012] [Indexed: 10/28/2022]
Abstract
Changes in chemical composition and antioxidative properties of rye ginger cakes during their shelf-life were investigated in this study. In particular, the changes in antioxidants content, antioxidative and reducing capacity, and Maillard reaction development in rye ginger cakes after long-term storage were addressed. Ginger cakes produced according to the traditional and current recipe were stored for 5 years at room temperature in a dark place. The total phenolic compounds (TPC), inositol hexaphosphate (IP6), reduced (GSH) and oxidised glutathione (GSSG) contents, antioxidant and reducing capacity and Maillard reaction products (MRPs) were determined in ginger cakes after storage and then compared to those measured after baking. After long-term storage a decrease in TPC and IP6 contents in cakes was noted. In contrast, an increase in antioxidative and reducing capacity of stored cakes was observed. Long-term storage induced formation of furosine, advanced and final Maillard reaction products and caused changes in both reduced and oxidised forms of glutathione. After long-term storage the modest changes in furosine, FAST index and browning in ginger cake formulated with dark rye flour may suggest that this product is the healthiest among others. Therefore, traditional rye ginger cakes can be considered as an example of a healthy food that is also relatively stable during long term storage as noted by the small chemical changes observed in its composition.
Collapse
Affiliation(s)
- Henryk Zieliński
- Division of Food Science, Institute of Animal Reproduction and Food Research of Polish Academy of Sciences, Tuwima 10, P.O. Box 55, 10-718 Olsztyn 5, Poland.
| | | | | | | | | | | |
Collapse
|
37
|
Abstract
Dysregulation of glutathione homeostasis and alterations in glutathione-dependent enzyme activities are increasingly implicated in the induction and progression of neurodegenerative diseases, including Alzheimer’s, Parkinson’s and Huntington’s diseases, amyotrophic lateral sclerosis, and Friedreich’s ataxia. In this review background is provided on the steady-state synthesis, regulation, and transport of glutathione, with primary focus on the brain. A brief overview is presented on the distinct but vital roles of glutathione in cellular maintenance and survival, and on the functions of key glutathione-dependent enzymes. Major contributors to initiation and progression of neurodegenerative diseases are considered, including oxidative stress, protein misfolding, and protein aggregation. In each case examples of key regulatory mechanisms are identified that are sensitive to changes in glutathione redox status and/or in the activities of glutathione-dependent enzymes. Mechanisms of dysregulation of glutathione and/or glutathione-dependent enzymes are discussed that are implicated in pathogenesis of each neurodegenerative disease. Limitations in information or interpretation are identified, and possible avenues for further research are described with an aim to elucidating novel targets for therapeutic interventions. The pros and cons of administration of N-acetylcysteine or glutathione as therapeutic agents for neurodegenerative diseases, as well as the potential utility of serum glutathione as a biomarker, are critically evaluated.
Collapse
|
38
|
Vasdev S, Stuckless J. Antihypertensive effects of dietary protein and its mechanism. Int J Angiol 2012; 19:e7-e20. [PMID: 22477579 DOI: 10.1055/s-0031-1278362] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Hypertension is a leading cause of morbidity and mortality worldwide. Individuals with hypertension are at increased risk of stroke, heart disease and kidney failure. Both genetic and lifestyle factors, particularly diet, have been attributed an important role in the development of hypertension. Reducing dietary sugar and salt intake can help lower blood pressure; similarly, adequate protein intake may also attenuate hypertension. Observational, cross-sectional and longitudinal epidemiological studies, and controlled clinical trials, have documented significant inverse associations between protein intake and blood pressure. Human and animal studies have shown that specific amino acids within proteins may have antihypertensive effects. Cysteine, glutathione (a tripeptide), glutamate and arginine attenuate and prevent alterations that cause hypertension including insulin resistance, decreased nitric oxide bioavailability, altered renin angiotensin system function, increased oxidative stress and formation of advanced glycation end products. Leucine increases protein synthesis in skeletal muscle and improves insulin resistance by modulating hepatic gluconeogenesis. Taurine and tryptophan attenuate sympathetic nervous system activity. Soy protein helps lower blood pressure through its high arginine content and antioxidant activity exhibited by isoflavones. A diet containing an ample amount of protein may be a beneficial lifestyle choice for individuals with hypertension; one example is the Dietary Approaches to Stop Hypertension (DASH) diet, which is low in salt and saturated fat; includes whole grains, lean meat, poultry, fish and nuts; and is rich in vegetables, fruits and low-fat dairy products, which are good sources of antioxidant vitamins, minerals and fibre. Including an adequate supply of soy in the diet should also be encouraged.
Collapse
Affiliation(s)
- Sudesh Vasdev
- Discipline of Medicine, Faculty of Medicine, Health Sciences Centre, Memorial University, St John's, Newfoundland and Labrador
| | | |
Collapse
|
39
|
Circu ML, Aw TY. Intestinal redox biology and oxidative stress. Semin Cell Dev Biol 2012; 23:729-37. [PMID: 22484611 DOI: 10.1016/j.semcdb.2012.03.014] [Citation(s) in RCA: 204] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2012] [Revised: 03/13/2012] [Accepted: 03/14/2012] [Indexed: 12/19/2022]
Abstract
The intestinal epithelium sits at the interface between an organism and its luminal environment, and as such is prone to oxidative damage induced by luminal oxidants. Mucosal integrity is maintained by the luminal redox status of the glutathione/glutathione disulfide (GSH/GSSG) and cysteine/cystine (Cys/CySS) couples which also support luminal nutrient absorption, mucus fluidity, and a diverse microbiota. The epithelial layer is uniquely organized for rapid self-renewal that is achieved by the well-regulated processes of crypt stem cell proliferation and crypt-to-villus cell differentiation. The GSH/GSSG and Cys/CySS redox couples, known to modulate intestinal cell transition through proliferation, differentiation or apoptosis, could govern the regenerative potential of the mucosa. These two couples, together with that of the thioredoxin/thioredoxin disulfide (Trx/TrxSS) couple are the major intracellular redox systems, and it is proposed that they each function as distinctive redox control nodes or circuitry in the control of metabolic processes and networks of enzymatic reactions. Specificity of redox signaling is accomplished in part by subcellular compartmentation of the individual redox systems within the mitochondria, nucleus, endoplasmic reticulum, and cytosol wherein each defined redox environment is suited to the specific metabolic function within that compartment. Mucosal oxidative stress would result from the disruption of these unique redox control nodes, and the subsequent alteration in redox signaling can contribute to the development of degenerative pathologies of the intestine, such as inflammation and cancer.
Collapse
Affiliation(s)
- Magdalena L Circu
- Department of Molecular & Cellular Physiology, Louisiana State University Health Sciences Center, Shreveport, LA 71130, USA
| | | |
Collapse
|
40
|
Abstract
The intestinal tract, known for its capability for self-renew, represents the first barrier of defence between the organism and its luminal environment. The thiol/disulfide redox systems comprising the glutathione/glutathione disulfide (GSH/GSSG), cysteine/cystine (Cys/CySS) and reduced and oxidized thioredoxin (Trx/TrxSS) redox couples play important roles in preserving tissue redox homeostasis, metabolic functions, and cellular integrity. Control of the thiol-disulfide status at the luminal surface is essential for maintaining mucus fluidity and absorption of nutrients, and protection against chemical-induced oxidant injury. Within intestinal cells, these redox couples preserve an environment that supports physiological processes and orchestrates networks of enzymatic reactions against oxidative stress. In this review, we focus on the intestinal redox and antioxidant systems, their subcellular compartmentation, redox signalling and epithelial turnover, and contribution of luminal microbiota, key aspects that are relevant to understanding redox-dependent processes in gut biology with implications for degenerative digestive disorders, such as inflammation and cancer.
Collapse
Affiliation(s)
- Magdalena L Circu
- Department of Molecular & Cellular Physiology, Louisiana State University Health Sciences Center, Shreveport, LA, USA
| | | |
Collapse
|
41
|
Ingenbleek Y, McCully KS. Vegetarianism produces subclinical malnutrition, hyperhomocysteinemia and atherogenesis. Nutrition 2011; 28:148-53. [PMID: 21872435 DOI: 10.1016/j.nut.2011.04.009] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2010] [Revised: 04/20/2011] [Accepted: 04/27/2011] [Indexed: 12/25/2022]
Abstract
OBJECTIVE To explain why vegetarian subjects develop morbidity and mortality from cardiovascular diseases unrelated to vitamin B status and Framingham criteria. METHODS A study of 24 rural male subjects 18 to 30 y old and 15 urban male controls was conducted in the Sahel region of Chad. Food consumption was determined from a dietary questionnaire, and overall health status was assessed by body weight, body mass index, serum albumin, plasma transthyretin, urinary nitrogen, and creatinine. Plasma lipids, vitamins B6, B9 and B12, homocysteine, and related sulfur amino acids were measured as selected cardiovascular disease risk factors. RESULTS Body weight, body mass index, blood, and urinary markers of protein status were significantly lower, with an estimated 10% decrease of lean body mass in the study group compared with urban controls. Neither lipid fractions nor plasma levels of vitamins B6, B9, and B12 were significantly different between the two groups. Although the mean consumption of sulfur amino acids (10.4 mg·kg(-1)·d(-1)) by rural subjects was significantly below the recommended dietary allowances (13 mg·kg(-1)·d(-1)), plasma methionine values were similar in the two groups. In contrast, homocysteine concentration was significantly increased (18.6 μmol/L, P < 0.001), and the levels of cysteine and glutathione were significantly decreased in the study group, demonstrating inhibition of the trans-sulfuration pathway. The strong negative correlation (r = -0.71) between transthyretin and homocysteine implicated lean body mass as a critical determinant of hyperhomocysteinemia. CONCLUSION The low dietary intake of protein and sulfur amino acids by a plant-eating population leads to subclinical protein malnutrition, explaining the origin of hyperhomocysteinemia and the increased vulnerability of these vegetarian subjects to cardiovascular diseases.
Collapse
Affiliation(s)
- Yves Ingenbleek
- Laboratory of Nutrition, Faculty of Pharmacy, University Louis Pasteur, Strasbourg, France
| | | |
Collapse
|
42
|
Nicks ME, O'Brien MM, Bowler RP. Plasma antioxidants are associated with impaired lung function and COPD exacerbations in smokers. COPD 2011; 8:264-9. [PMID: 21627570 DOI: 10.3109/15412555.2011.579202] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Low molecule weight antioxidants such as uric acid (UA), glutathione (GSH), and ascorbate (ASC) counter the effects of oxidants produced by cigarette smoke. Although dietary intake of foods rich in antioxidants has been associated with a reduced risk of smokers developing chronic obstructive pulmonary disease (COPD), the association between plasma antioxidants and COPD is less clear. In this cross-sectional study we investigated the relationship among plasma antioxidants and COPD phenotypes (severity of airflow obstruction on spirometry and history of exacerbations) in 136 smokers with normal lung function and 367 smokers with COPD. In the multivariate analysis, a lower plasma UA was associated with more severe COPD (P < 0.002) and a lower GSH was associated with a history of COPD exacerbations (P = 0.03); ASC was not associated with any COPD phenotypes. This suggests that antioxidant balance is impaired in smokers with obstruction on spirometry or a history of COPD exacerbations.
Collapse
Affiliation(s)
- Michael E Nicks
- Department of Medicine, National Jewish Health, Denver, Colorado, USA
| | | | | |
Collapse
|
43
|
Zacharis CK, Tzanavaras PD, Zotou A. Ethyl propiolate as a post-column derivatization reagent for thiols: development of a green liquid chromatographic method for the determination of glutathione in vegetables. Anal Chim Acta 2011; 690:122-8. [PMID: 21414445 DOI: 10.1016/j.aca.2011.02.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2010] [Revised: 01/31/2011] [Accepted: 02/01/2011] [Indexed: 11/19/2022]
Abstract
The present study reports the development, validation and application of a new green liquid chromatographic method for the determination of glutathione (GSH) in vegetable samples. In this work we introduce-for the first time-ethyl propiolate (EP) as an advantageous post-column derivatization reagent for thiolic compounds. GSH (t(R)=6.60 min) and N-acetylcysteine (NAC, internal standard) (t(R)=11.80 min) were separated efficiently from matrix endogenous compounds by using a 100% aqueous mobile phase (0.1%, v/v CH(3)COOH in 1 mmol L(-1) EDTA, Q(V)=0.5 mL min(-1)) and a Prevail(®) reversed phase column that offers the advantage of stable packing material in aqueous mobile phases. The parameters of the post-column reaction (pH, amount concentration of the reagent, flow rates, length of the reaction coil and temperature) were studied. The linear determination range for GSH was 1-200 μmol L(-1) and the LOD was 0.1 μmol L(-1) (S/N=3). Total endogenous GSH was determined in broccoli, potato, asparagus and Brussels sprouts using the standards addition approach. The accuracy was evaluated by both recovery experiments (R=91-110%) and comparison to an o-phthalaldehyde/glycine corroborative post-column derivatization fluorimetric method.
Collapse
Affiliation(s)
- Constantinos K Zacharis
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotelian University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | | | | |
Collapse
|
44
|
Quenching of excited states of red-pigment zinc protoporphyrin IX by hemin and natural reductors in dry-cured hams. Eur Food Res Technol 2010. [DOI: 10.1007/s00217-010-1392-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
45
|
Singh PP, Chandra A, Mahdi F, Roy A, Sharma P. Reconvene and reconnect the antioxidant hypothesis in human health and disease. Indian J Clin Biochem 2010; 25:225-43. [PMID: 21731194 PMCID: PMC3001844 DOI: 10.1007/s12291-010-0078-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2010] [Accepted: 07/20/2010] [Indexed: 02/07/2023]
Abstract
The antioxidants are essential molecules in human system but are not miracle molecules. They are neither performance enhancers nor can prevent or cure diseases when taken in excess. Their supplemental value is debateable. In fact, many high quality clinical trials on antioxidant supplement have shown no effect or adverse outcomes ranging from morbidity to all cause mortality. Several Chochrane Meta-analysis and Markov Model techniques, which are presently best available statistical models to derive conclusive answers for comparing large number of trials, support these claims. Nevertheless none of these statistical techniques are flawless. Hence, more efforts are needed to develop perfect statistical model to analyze the pooled data and further double blind, placebo controlled interventional clinical trials, which are gold standard, should be implicitly conducted to get explicit answers. Superoxide dismutase (SOD), glutathione peroxidase and catalase are termed as primary antioxidants as these scavenge superoxide anion and hydrogen peroxide. All these three enzymes are inducible enzymes, thereby inherently meaning that body increases or decreases their activity as per requirement. Hence there is no need to attempt to manipulate their activity nor have such efforts been clinically useful. SOD administration has been tried in some conditions especially in cancer and myocardial infarction but has largely failed, probably because SOD is a large molecule and can not cross cell membrane. The dietary antioxidants, including nutrient antioxidants are chain breaking antioxidants and in tandem with enzyme antioxidants temper the reactive oxygen species (ROS) and reactive nitrogen species (RNS) within physiological limits. Since body is able to regulate its own requirements of enzyme antioxidants, the diet must provide adequate quantity of non-enzymic antioxidants to meet the normal requirements and provide protection in exigent condition. So far, there is no evidence that human tissues ever experience the torrent of reactive species and that in chronic conditions with mildly enhanced generation of reactive species, the body can meet them squarely if antioxidants defense system in tissues is biochemically optimized. We are not yet certain about optimal levels of antioxidants in tissues. Two ways have been used to assess them: first by dietary intake and second by measuring plasma levels. Lately determination of plasma/serum level of antioxidants is considered better index for diagnostic and prognostic purposes. The recommended levels for vitamin A, E and C and beta carotene are 2.2-2.8 μmol/l; 27.5-30 μmol/l; 40-50 μmol/l and 0.4-0.5 μmol/l, respectively. The requirement and recommended blood levels of other dietary antioxidants are not established. The resolved issues are (1) essential to scavenge excess of radical species (2) participants in redox homeostasis (3) selective antioxidants activity against radical species (4) there is no universal antioxidant and 5) therapeutic value in case of deficiency. The overarching issues are (1) therapeutic value as adjuvant therapy in management of diseases (2) supplemental value in developing population (3) selective interactivity of antioxidant in different tissues and on different substrates (4) quantitative contribution in redox balance (5) mechanisms of adverse action on excess supplementation (6) advantages and disadvantages of prooxidant behavior of antioxidants (7) behavior in cohorts with polymorphic differences (8) interaction and intervention in radiotherapy, diabetes and diabetic complications and cardiovascular diseases (9) preventive behavior in neurological disorders (10) benefits of non-nutrient dietary antioxidants (11) markers to assess optimized antioxidants status (12) assessment of benefits of supplementation in alcoholics and heavy smokers. The unresolved and intriguing issues are (1) many compounds such as vitamin A and many others possessing both antioxidant and non-antioxidant properties contribute to both the activities in vivo or exclusively only to non-antioxidant activity and (2) since human tissues do not experience the surge of FR, whether there is any need to develop stronger synthetic antioxidants. Theoretically such antioxidants may do more harm than good.
Collapse
Affiliation(s)
- P. P. Singh
- Department of Biochemistry, Era’s Lucknow Medical College & Hospital, Sarfarazganj, Lucknow, UP India
| | - Anu Chandra
- Department of Biochemistry, Era’s Lucknow Medical College & Hospital, Sarfarazganj, Lucknow, UP India
| | - Farzana Mahdi
- Department of Biochemistry, Era’s Lucknow Medical College & Hospital, Sarfarazganj, Lucknow, UP India
| | - Ajanta Roy
- Department of Biochemistry, Era’s Lucknow Medical College & Hospital, Sarfarazganj, Lucknow, UP India
| | - Praveen Sharma
- Department of Biochemistry, Era’s Lucknow Medical College & Hospital, Sarfarazganj, Lucknow, UP India
- Department of Biochemistry, SMS Medical College, Jaipur, India
| |
Collapse
|
46
|
Manda KR, Adams C, Ercal N. Biologically important thiols in aqueous extracts of spices and evaluation of their in vitro antioxidant properties. Food Chem 2010. [DOI: 10.1016/j.foodchem.2009.05.025] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
|
47
|
Kubalczyk P, Bald E. Analysis of orange juice for total cysteine and glutathione content by CZE with UV-absorption detection. Electrophoresis 2009; 30:2280-3. [DOI: 10.1002/elps.200800741] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
48
|
Abd El-Baky HH, El Baz FK, El-Baroty GS. Enhancement of antioxidant production in Spirulina platensis under oxidative stress. ACTA PHYSIOLOGIAE PLANTARUM 2009; 31:623-631. [DOI: 10.1007/s11738-009-0273-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
|
49
|
Labor augmentation with oxytocin decreases glutathione level. Obstet Gynecol Int 2009; 2009:807659. [PMID: 19960051 PMCID: PMC2778188 DOI: 10.1155/2009/807659] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2008] [Revised: 01/01/2009] [Accepted: 02/24/2009] [Indexed: 11/18/2022] Open
Abstract
Objective. To compare oxidative stress following spontaneous vaginal delivery with that induced by Oxytocin augmented delivery. Methods. 98 women recruited prior to labor. 57 delivered spontaneously, while 41 received Oxytocin for augmentation of labor. Complicated deliveries and high-risk pregnancies were excluded. Informed consent was documented. Arterial cord blood gases, levels of Hematocrit, Hemoglobin, and Bilirubin were studied. Glutathione (GSH) concentration was measured by a spectroscopic method. Plasma and red blood cell (RBC) levels of Malondialdehyde indicated lipid peroxidation. RBC uptake of phenol red denoted cell penetrability. SPSS data analysis was used. Results. Cord blood GSH was significantly lower in the Oxytocin group (2.3 +/- 0.55 mM versus 2.55 +/- 0.55 mM, P = .01). No differences were found in plasma or RBC levels of MDA or in uptake of Phenol red between the groups. Conclusion. Lower GSH levels following Oxytocin augmentation indicate an oxidative stress, though selected measures of oxidative stress demonstrate no cell damage.
Collapse
|
50
|
Rundle AG, Orjuela M, Mooney L, Tang D, Kim M, Calcagnotto A, Richie JP, Perera F. Preliminary studies on the effect of moderate physical activity on blood levels of glutathione. Biomarkers 2008; 10:390-400. [PMID: 16243723 DOI: 10.1080/13547500500272663] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Molecular epidemiological approaches are being used to study how physical activity may protect against cancer. Prior epidemiological data suggest that physical activity protects against lung cancer; however, interpretation of these data is complicated by potential confounding by smoking. Glutathione (GSH) detoxifies cigarette smoke carcinogens and the paper tests whether physical activity levels are associated with blood GSH levels. Study subjects were enrolled in a chemoprevention trial testing whether antioxidant micronutrient supplementation reduces genetic damage from cigarette smoking. Physical activity data were collected by questionnaire from 178 subjects at 12 months of follow-up in the trial. Total GSH (tGSH), which is the sum of free and protein-bound GSH and glutathione disulfide levels, was measured using the 5,5'-dithiobis-(2-nitrobenzenoic acid) colormetric assay with red blood cell samples collected at the 12-month time point. In multivariate linear regression analyses that controlled for gender and cigarettes smoked per day, tGSH was positively associated with hours per week of moderate intensity activity (beta=0.005, p=0.02). Hours per week of vigorous intensity activity were unassociated with tGSH and the effect of moderate activity remained after control for vigorous activity. The results are consistent with prior research showing differential effects of moderate and vigorous activity and suggest a mechanism through which physical activity may influence lung cancer risk.
Collapse
Affiliation(s)
- A G Rundle
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY 10032, USA.
| | | | | | | | | | | | | | | |
Collapse
|