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Abstract
Understanding the nutrient composition of kiwifruit is central to discussions of the nutritional value and potential health benefits of kiwifruit. Until recently, there were only limited validated data providing extensive compositional information available as reference values for common commercial cultivars. As a genus, Actinidia is diverse in both form and composition; however, there are several notable compounds that, within the context of fruit, are the signature of Actinidia: vitamin C, actinidin, fiber, vitamin E, and for selected cultivars, the persistence of chlorophyll in the mature fruit. Kiwifruit is also known as a nutritionally dense fruit, based on the level of nutrients present. The high amount of vitamin C in kiwifruit is the primary driver of such nutritional scores. Recently, a new approach to estimating the true energy value of kiwifruit has shown that kiwifruit delivers less available energy relative to other foods than is assumed based on traditional measures of food energy content. This, together with the key nutritional elements of kiwifruit, supports its position as a highly nutritious, low-calorie fruit with the potential to deliver a range of health benefits.
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152
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Minois N, Carmona-Gutierrez D, Bauer MA, Rockenfeller P, Eisenberg T, Brandhorst S, Sigrist SJ, Kroemer G, Madeo F. Spermidine promotes stress resistance in Drosophila melanogaster through autophagy-dependent and -independent pathways. Cell Death Dis 2012; 3:e401. [PMID: 23059820 PMCID: PMC3481127 DOI: 10.1038/cddis.2012.139] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2012] [Revised: 07/31/2012] [Accepted: 09/03/2012] [Indexed: 01/05/2023]
Abstract
The naturally occurring polyamine spermidine (Spd) has recently been shown to promote longevity across species in an autophagy-dependent manner. Here, we demonstrate that Spd improves both survival and locomotor activity of the fruit fly Drosophila melanogaster upon exposure to the superoxide generator and neurotoxic agent paraquat. Although survival to a high paraquat concentration (20 mM) was specifically increased in female flies only, locomotor activity and survival could be rescued in both male and female animals when exposed to lower paraquat levels (5 mM). These effects are dependent on the autophagic machinery, as Spd failed to confer resistance to paraquat-induced toxicity and locomotor impairment in flies deleted for the essential autophagic regulator ATG7 (autophagy-related gene 7). Spd treatment did also protect against mild doses of another oxidative stressor, hydrogen peroxide, but in this case in an autophagy-independent manner. Altogether, this study establishes that the protective effects of Spd can be exerted through different pathways that depending on the oxidative stress scenario do or do not involve autophagy.
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Affiliation(s)
- N Minois
- School of Biology, Biomedical Sciences Research Complex, University of St. Andrews, St. Andrews, UK
| | | | - M A Bauer
- Institute for Molecular Biosciences, University of Graz, Graz, Austria
| | - P Rockenfeller
- Institute for Molecular Biosciences, University of Graz, Graz, Austria
| | - T Eisenberg
- Institute for Molecular Biosciences, University of Graz, Graz, Austria
| | - S Brandhorst
- Andrus Gerontology Center, Department of Biological Sciences and Norris Cancer Center, University of Southern California, Los Angeles, CA, USA
- Centre for Medical Biotechnology, Faculty of Biology, University Duisburg–Essen, Essen, Germany
| | - S J Sigrist
- Department of Genetics, Institute for Biology, Free University Berlin, Berlin, Germany
- Neurocure Cluster of Excellence, Charité Berlin, Berlin, Germany
| | - G Kroemer
- INSERM, U848, Institute Gustave Roussy, University Paris XI, Villejuif, France
- Metabolomics Platform, Institut Gustave Roussy, Villejuif, France
- Centre de Recherche des Cordeliers, Université Paris Descartes, Paris 5, Paris, France
- Pôle de Biologie, Hôpital Européen Georges Pompidou, AP-HP, Paris, France
| | - F Madeo
- Institute for Molecular Biosciences, University of Graz, Graz, Austria
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153
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Contents of biologically active polyamines in duck meat and giblets after slaughter and their changes during meat storage and cooking. Food Res Int 2012. [DOI: 10.1016/j.foodres.2012.02.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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154
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Farrugia G, Balzan R. Oxidative stress and programmed cell death in yeast. Front Oncol 2012; 2:64. [PMID: 22737670 PMCID: PMC3380282 DOI: 10.3389/fonc.2012.00064] [Citation(s) in RCA: 190] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2012] [Accepted: 06/02/2012] [Indexed: 12/11/2022] Open
Abstract
Yeasts, such as Saccharomyces cerevisiae, have long served as useful models for the study of oxidative stress, an event associated with cell death and severe human pathologies. This review will discuss oxidative stress in yeast, in terms of sources of reactive oxygen species (ROS), their molecular targets, and the metabolic responses elicited by cellular ROS accumulation. Responses of yeast to accumulated ROS include upregulation of antioxidants mediated by complex transcriptional changes, activation of pro-survival pathways such as mitophagy, and programmed cell death (PCD) which, apart from apoptosis, includes pathways such as autophagy and necrosis, a form of cell death long considered accidental and uncoordinated. The role of ROS in yeast aging will also be discussed.
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Affiliation(s)
- Gianluca Farrugia
- Department of Physiology and Biochemistry, Faculty of Medicine and Surgery, University of MaltaMsida, Malta
| | - Rena Balzan
- Department of Physiology and Biochemistry, Faculty of Medicine and Surgery, University of MaltaMsida, Malta
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155
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Spanaki C, Zaganas I, Kounoupa Z, Plaitakis A. The complex regulation of human glud1 and glud2 glutamate dehydrogenases and its implications in nerve tissue biology. Neurochem Int 2012; 61:470-81. [PMID: 22658952 DOI: 10.1016/j.neuint.2012.05.020] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2012] [Revised: 05/20/2012] [Accepted: 05/21/2012] [Indexed: 12/01/2022]
Abstract
Mammalian glutamate dehydrogenase (GDH) is a housekeeping mitochondrial enzyme (hGDH1 in the human) that catalyses the reversible inter-conversion of glutamate to α-ketoglutarate and ammonia, thus interconnecting amino acid and carbohydrate metabolism. It displays an energy sensing mechanism, which permits enzyme activation under low cellular energy states. As GDH is at the crossroads of important metabolic pathways, a tight control of its activity is essential. Indeed, to fulfill its role in metabolism and cellular energetics, mammalian GDH has evolved into a highly regulated enzyme subject to allosteric modulation by diverse compounds. The recent emergence (<23 million years ago) in apes and humans of a hGDH2 isoenzyme with distinct regulatory properties, as well as, the detection of gain-of-function variants in hGDH1 and hGDH2 that affect the nervous system, have introduced additional complexities. The properties of the two highly homologous human GDHs were studied using purified recombinant hGDH1 and hGDH2 obtained by expression of the corresponding cDNAs in Sf21 cells. Results showed that, in contrast to hGDH1 that maintains substantial basal activity (35-40% of its maximal capacity), hGDH2 displays low basal activity (3-8% of maximal) that is remarkably responsive to activation by rising levels of ADP and/or l-leucine. This is primarily due to the Arg443Ser evolutionary change, which also made hGDH2 markedly sensitive to estrogens and neuroleptic drugs. In contrast to hGDH1, which is subject to potent GTP inhibition, hGDH2 has dissociated its function from this energy switch, being able to metabolize glutamate even when the Krebs cycle generates GTP levels sufficient to inactivate the housekeeping hGDH1. Our data also show that spermidine, a polyamine thought to reduce oxidative stress and to prolong survival, and EGCG, a green tea polyphenol, inhibit hGDH2 at lower concentrations than hGDH1. The implications of these findings in nerve tissue biology are discussed.
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Affiliation(s)
- Cleanthe Spanaki
- Department of Neurology, Medical School, University of Crete, Heraklion, Crete, Greece
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156
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Dadáková E, Pelikánová T, Kalač P. Concentration of biologically active polyamines in rabbit meat, liver and kidney after slaughter and their changes during meat storage and cooking. Meat Sci 2012; 90:796-800. [DOI: 10.1016/j.meatsci.2011.11.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2011] [Revised: 04/28/2011] [Accepted: 11/02/2011] [Indexed: 11/30/2022]
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157
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FUKUDA M, TAKAGI N, KOBAYASHI M, TSUZUKI K. Effects of Soy Yogurt on Intestinal and Plasma Polyamine Levels in Adult Rats. FOOD SCIENCE AND TECHNOLOGY RESEARCH 2012. [DOI: 10.3136/fstr.18.115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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158
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Minois N, Carmona-Gutierrez D, Madeo F. Polyamines in aging and disease. Aging (Albany NY) 2011; 3:716-32. [PMID: 21869457 PMCID: PMC3184975 DOI: 10.18632/aging.100361] [Citation(s) in RCA: 319] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2011] [Accepted: 08/16/2011] [Indexed: 01/19/2023]
Abstract
Polyamines are polycations that interact with negatively charged molecules such as DNA, RNA and proteins. They play multiple roles in cell growth, survival and proliferation. Changes in polyamine levels have been associated with aging and diseases. Their levels decline continuously with age and polyamine (spermidine or high-polyamine diet) supplementation increases life span in model organisms. Polyamines have also been involved in stress resistance. On the other hand, polyamines are increased in cancer cells and are a target for potential chemotherapeutic agents. In this review, we bring together these various results and draw a picture of the state of our knowledge on the roles of polyamines in aging, stress and diseases.
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Affiliation(s)
- Nadège Minois
- University of St Andrews, School of Biology, St Andrews, Fife, UK.
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159
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Determination of biogenic amines in infusions of tea (Camellia sinensis) by HPLC after derivatization with 9-fluorenylmethoxycarbonyl chloride (Fmoc-Cl). Amino Acids 2011; 42:877-85. [DOI: 10.1007/s00726-011-1003-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2011] [Accepted: 06/02/2011] [Indexed: 10/17/2022]
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160
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Matsumoto M, Kurihara S. Probiotics-induced increase of large intestinal luminal polyamine concentration may promote longevity. Med Hypotheses 2011; 77:469-72. [PMID: 21745717 DOI: 10.1016/j.mehy.2011.06.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2010] [Accepted: 06/06/2011] [Indexed: 11/27/2022]
Abstract
Many mechanisms contribute to senescence, such as telomere shortening in replicative cells, cumulative damage to DNA leading to genomic instability, and oxidative damage to molecules by reactive oxygen species (ROS). These include chronic low-grade inflammation (inflammageing), a major risk factor for ageing and age-related diseases, such as Alzheimer's disease and type II diabetes. Furthermore, the prevention of inflammageing seems to be one of the most effective approaches to increase longevity. Here, I discuss the rationale and recent evidence for probiotic-induced upregulation of intestinal luminal polyamine (PA) production in the extension of lifespan by preventing inflammageing.
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Affiliation(s)
- Mitsuharu Matsumoto
- Dairy Science and Technology Institute, Kyodo Milk Industry Co. Ltd., 20-1 Hirai, Hinode-cho, Nishitama-gun, Tokyo 190-0182, Japan.
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161
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Skorupski KA, O'Brien TG, Guerrero T, Rodriguez CO, Burns MR. Phase I/II clinical trial of 2-difluoromethyl-ornithine (DFMO) and a novel polyamine transport inhibitor (MQT 1426) for feline oral squamous cell carcinoma. Vet Comp Oncol 2011; 9:275-82. [PMID: 22077408 DOI: 10.1111/j.1476-5829.2011.00264.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Polyamines are essential for cell proliferation. Their production is dysregulated in many cancers and polyamine depletion leads to tumour regression in mouse models of squamous cell carcinoma (SCC). The purpose of this study was to determine the maximally tolerated dose of the polyamine transport inhibitor, MQT 1426, when combined with the ornithine decarboxylase (ODC) inhibitor, DFMO, and to determine whether this therapy results in reduction in tumour polyamine levels. Thirteen cats with oral SCC received both drugs orally and serial tumour biopsies were obtained for polyamine measurement. Cats were monitored for response to therapy and toxicity. A maximum tolerated dose (MTD) of MQT 1426 when combined with DFMO was determined. Dose-limiting toxicity was vestibular in nature, but was fully reversible. Spermidine and total polyamine levels decreased significantly in tissues, two cats experienced objective tumour regression and six cats had stable disease. These results suggest that further study of polyamine depletion therapies is warranted.
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Affiliation(s)
- K A Skorupski
- Department of Surgical and Radiological Sciences, University of California, Davis, CA 95616, USA.
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162
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Sugita Y, Takao K, Sugino Y, Kuwabara R, Shirahata A. Enhancement of gastrointestinal absorption of ovalbumin caused by spermine induces an increase in plasma histamine levels in mice sensitized to ovalbumin. Biol Pharm Bull 2011; 34:415-9. [PMID: 21372394 DOI: 10.1248/bpb.34.415] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The aim of this study was to determine whether a spermine (SPM)-induced increase in gastrointestinal absorption of an allergen leads to an anaphylactic response in sensitized mice. First, we examined the enhancing effect of SPM on the gastrointestinal absorption of ovalbumin (OVA) in an in situ jejunum loop study in rats and an in vivo oral absorption study in mice. Second, we investigated whether enhancement of gastrointestinal absorption of OVA caused by SPM induces an anaphylactic response in mice sensitized to OVA. In the in situ jejunum loop study in rats, a significant amount of immune-reactive OVA was detected in the plasma after co-administration of OVA and SPM. Oral co-administration of OVA and SPM to mice in vivo also increased plasma OVA concentrations in an SPM dose-dependent manner. Furthermore, in sensitized mice, a significant increase in plasma histamine levels occurred along with the increase in plasma OVA levels after co-administration of OVA with SPM. This finding suggests that an SPM-induced increase in gastrointestinal absorption of OVA leads to an anaphylactic response. These results indicate that excess oral ingestion of SPM may have widespread health effects, including the induction of food allergies, via modulation of the function of the gastrointestinal epithelial barrier.
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Affiliation(s)
- Yoshiaki Sugita
- Laboratory of Cellular Physiology, Department of Clinical Dietetics and Human Nutrition, Faculty of Pharmaceutical Sciences, Josai University, Sakado, Saitama 350–0295, Japan.
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163
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Concentration of biologically active polyamines in meat and liver of sheep and lambs after slaughter and their changes in mutton during storage and cooking. Meat Sci 2011; 87:119-24. [DOI: 10.1016/j.meatsci.2010.09.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2010] [Revised: 09/16/2010] [Accepted: 09/22/2010] [Indexed: 11/18/2022]
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164
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Ali MA, Poortvliet E, Strömberg R, Yngve A. Polyamines: total daily intake in adolescents compared to the intake estimated from the Swedish Nutrition Recommendations Objectified (SNO). Food Nutr Res 2011; 55:5455. [PMID: 21249160 PMCID: PMC3022765 DOI: 10.3402/fnr.v55i0.5455] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2010] [Revised: 10/26/2010] [Accepted: 11/23/2010] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Dietary polyamines have been shown to give a significant contribution to the body pool of polyamines. Knowing the levels of polyamines (putrescine, spermidine, and spermine) in different foods and the contribution of daily food choice to polyamine intake is of interest, due to the association of these bioactive amines to health and disease. OBJECTIVE To estimate polyamine intake and food contribution to this intake in adolescents compared to a diet fulfilling the Swedish Nutrition Recommendations. DESIGN A cross-sectional study of dietary intake in adolescents and an 'ideal diet' (Swedish nutrition recommendations objectified [SNO]) list of foods was used to compute polyamine intake using a database of polyamine contents of foods. For polyamine intake estimation, 7-day weighed food records collected from 93 adolescents were entered into dietetic software (Dietist XP) including data on polyamine contents of foods. The content of polyamines in foods recommended according to SNO was entered in the same way. RESULTS The adolescents' mean daily polyamine intake was 316±170 µmol/day, while the calculated contribution according to SNO was considerably higher with an average polyamine intake of 541 µmol/day. In both adolescent's intake and SNO, fruits contributed to almost half of the total polyamine intake. The reason why the intake among the adolescents was lower than the one calculated from SNO was mainly due to the low vegetable consumption in the adolescents group. CONCLUSIONS The average daily total polyamine intake was similar to that previously reported in Europe. With an 'ideal' diet according to Swedish nutrition recommendations, the intake of this bioactive non-nutrient would be higher than that reported by our adolescents and also higher than that previously reported from Europe.
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Affiliation(s)
- Mohamed Atiya Ali
- Unit for Public health Nutrition, Department of Biosciences and Nutrition, NOVUM, Karolinska Institutet, Sweden
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165
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Ali MA, Poortvliet E, Strömberg R, Yngve A. Polyamines in foods: development of a food database. Food Nutr Res 2011; 55:5572. [PMID: 21249159 PMCID: PMC3022763 DOI: 10.3402/fnr.v55i0.5572] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2010] [Revised: 11/03/2010] [Accepted: 12/14/2010] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Knowing the levels of polyamines (putrescine, spermidine, and spermine) in different foods is of interest due to the association of these bioactive nutrients to health and diseases. There is a lack of relevant information on their contents in foods. OBJECTIVE To develop a food polyamine database from published data by which polyamine intake and food contribution to this intake can be estimated, and to determine the levels of polyamines in Swedish dairy products. DESIGN Extensive literature search and laboratory analysis of selected Swedish dairy products. Polyamine contents in foods were collected using an extensive literature search of databases. Polyamines in different types of Swedish dairy products (milk with different fat percentages, yogurt, cheeses, and sour milk) were determined using high performance liquid chromatography (HPLC) equipped with a UV detector. RESULTS Fruits and cheese were the highest sources of putrescine, while vegetables and meat products were found to be rich in spermidine and spermine, respectively. The content of polyamines in cheese varied considerably between studies. In analyzed Swedish dairy products, matured cheese had the highest total polyamine contents with values of 52.3, 1.2, and 2.6 mg/kg for putrescine, spermidine, and spermine, respectively. Low fat milk had higher putrescine and spermidine, 1.2 and 1.0 mg/kg, respectively, than the other types of milk. CONCLUSIONS The database aids other researchers in their quest for information regarding polyamine intake from foods. Connecting the polyamine contents in food with the Swedish Food Database allows for estimation of polyamine contents per portion.
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Affiliation(s)
- Mohamed Atiya Ali
- Group for Public Health Nutrition, Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden
- Faculty of Health, Nutrition and Management, Akershus University College, Lillestrøm, Norway
| | - Eric Poortvliet
- Group for Public Health Nutrition, Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden
| | - Roger Strömberg
- Department of Biosciences and Nutrition, NOVUM, Karolinska Institutet, Huddinge, Sweden
| | - Agneta Yngve
- Group for Public Health Nutrition, Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden
- Faculty of Health, Nutrition and Management, Akershus University College, Lillestrøm, Norway
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166
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Lima GPP, Vianello F. Review on the main differences between organic and conventional plant-based foods. Int J Food Sci Technol 2010. [DOI: 10.1111/j.1365-2621.2010.02436.x] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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167
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Lee J, Martin RR. Analysis of grape polyamines from Grapevine leafroll associated viruses (GLRaV-2 and -3) infected vines. Food Chem 2010. [DOI: 10.1016/j.foodchem.2010.03.118] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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168
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Soda K. Polyamine intake, dietary pattern, and cardiovascular disease. Med Hypotheses 2010; 75:299-301. [DOI: 10.1016/j.mehy.2010.03.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2010] [Accepted: 03/06/2010] [Indexed: 10/19/2022]
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169
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La Torre GL, Saitta M, Giorgia Potortì A, Di Bella G, Dugo G. High performance liquid chromatography coupled with atmospheric pressure chemical ionization mass spectrometry for sensitive determination of bioactive amines in donkey milk. J Chromatogr A 2010; 1217:5215-24. [PMID: 20598311 DOI: 10.1016/j.chroma.2010.06.022] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2010] [Revised: 06/07/2010] [Accepted: 06/08/2010] [Indexed: 10/19/2022]
Abstract
In the present study we report on the optimization and validation of a sensitive high performance liquid chromatography atmospheric pressure chemical ionization mass spectrometry (HPLC-APCI-MS) method for the determination of 8 bioactive amines (histamine, tyramine, tryptamine, 2-phenylethylamine, cadaverine, putrescine, spermidine and spermine) in donkey milk samples. The method involves donkey milk pre-treatment to remove proteins and pre-column dansylation of the amines. HPLC in reversed phase mode has been used for bioactive amines separation and the operating condition of the APCI-MS system proved to be powerful and very efficient for peak assignment. The separation was accomplished in a short time with an excellent resolution for all the amine peaks. Quantification was carried out by monitoring the characteristic [M+H](+) ion of each amine derivative. The method sensitivity, linearity and repeatability were assayed with satisfactory results. The detection limits of the analysed amines ranged from 0.5 microg L(-1) to 15 microg L(-1); the highest LOD was for spermine. Also remarkably good recovery values were obtained; at the lowest spiking level (1 microg L(-1)) the percent mean recoveries ranged from 77.7 to 109.7. Furthermore, as the investigations relate to a complex matrix as donkey milk, suitable studies on matrix effect were performed. Finally, the developed and validated method was applied to analyse 13 donkey milk samples. Among the identified bioactive amines, putrescine, spermine and spermidine proved to be the main amines in donkey milk. Their concentration levels in the present study were lower than the values determined in mature human, cow and sow milk.
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Affiliation(s)
- Giovanna Loredana La Torre
- Dipartimento di Scienze degli Alimenti e dell'Ambiente Prof. Guglielmo Stagno d'Alcontres, Facoltà di Scienze MM. FF. NN., Università di Messina, Viale Ferdinando Stagno d'Alcontres, 31-98166 Messina, Italy.
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170
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Eisenberg T, Carmona-Gutierrez D, Büttner S, Tavernarakis N, Madeo F. Necrosis in yeast. Apoptosis 2010; 15:257-68. [DOI: 10.1007/s10495-009-0453-4] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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171
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Boobis A, Watelet JB, Whomsley R, Benedetti MS, Demoly P, Tipton K. Drug interactions. Drug Metab Rev 2009; 41:486-527. [PMID: 19601724 DOI: 10.1080/10837450902891550] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Drugs for allergy are often taken in combination with other drugs, either to treat allergy or other conditions. In common with many pharmaceuticals, most such drugs are subject to metabolism by P450 enzymes and to transmembrane transport. This gives rise to considerable potential for drug-drug interactions, to which must be added consideration of drug-diet interactions. The potential for metabolism-based drug interactions is increasingly being taken into account during drug development, using a variety of in silico and in vitro approaches. Prediction of transporter-based interactions is not as advanced. The clinical importance of a drug interaction will depend upon a number of factors, and it is important to address concerns quantitatively, taking into account the therapeutic index of the compound.
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Affiliation(s)
- Alan Boobis
- Department of Experimental Medicine and Toxicology, Division of Medicine, Imperial College London, Hammersmith Campus, London.
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172
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Developmental alterations in expression and subcellular localization of antizyme and antizyme inhibitor and their functional importance in the murine mammary gland. Amino Acids 2009; 38:591-601. [PMID: 19997757 DOI: 10.1007/s00726-009-0422-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2009] [Accepted: 09/29/2009] [Indexed: 10/20/2022]
Abstract
Ornithine decarboxylase (ODC), antizyme (AZ), and antizyme inhibitor (AIn) play a key role in regulation of intracellular polyamine levels by forming a regulatory circuit through their interactions. To gain insight into their functional importance in cell growth and differentiation, we systematically examined the changes of their expression, cellular polyamine contents, expression of genes related to polyamine metabolism, and beta-casein gene expression during murine mammary gland development. The activity of ODC and AZ1 as well as putrescine level were low in the virgin and involuting stages, but they increased markedly during late pregnancy and early lactation when mammary cells proliferate extensively and begin to augment their differentiated function. The level of spermidine and expression of genes encoding spermidine synthase and AIn increased in a closely parallel manner with that of casein gene expression during pregnancy and lactation. On the other hand, the level of spermidine/spermine N(1)-acetyltransferase (SSAT) mRNA and AZ2 mRNA decreased during those periods. Immunohistochemical analysis showed the translocation of ODC and AIn between the nucleus and cytoplasm and the continuous presence of AZ in the nucleus during gland development. Reduction of AIn by RNA interference inhibited expression of beta-casein gene stimulated by lactogenic hormones in HC11 cells. In contrast, reduction of AZ by AZsiRNA resulted in the small increase of beta-casein gene expression. These results suggested that AIn plays an important role in the mammary gland development by changing its expression, subcellular localization, and functional interplay with AZ.
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173
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Content of biogenic amines and polyamines in some species of European wild-growing edible mushrooms. Eur Food Res Technol 2009. [DOI: 10.1007/s00217-009-1148-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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174
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Kozová M, Kalač P, Pelikánová T. Contents of biologically active polyamines in chicken meat, liver, heart and skin after slaughter and their changes during meat storage and cooking. Food Chem 2009. [DOI: 10.1016/j.foodchem.2009.02.057] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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175
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Content of polyamines in by-products of slaughter pigs. Meat Sci 2009; 83:161-4. [DOI: 10.1016/j.meatsci.2009.04.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2009] [Revised: 04/27/2009] [Accepted: 04/28/2009] [Indexed: 11/20/2022]
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176
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Ramos B, Pinho O, Ferreira I. Changes of yolk biogenic amine concentrations during storage of shell hen eggs. Food Chem 2009. [DOI: 10.1016/j.foodchem.2009.02.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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177
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Soda K, Kano Y, Sakuragi M, Takao K, Lefor A, Konishi F. Long-term oral polyamine intake increases blood polyamine concentrations. J Nutr Sci Vitaminol (Tokyo) 2009; 55:361-6. [PMID: 19763038 DOI: 10.3177/jnsv.55.361] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Although the intracellular de novo synthesis of the polyamines decreases with age, there is no similar trend in blood polyamine levels, but rather there is wide individual variability. We hypothesized that dietary polyamines attenuate a decrease in blood polyamine levels with age and augment the previously observed individual variability. The effect of a polyamine rich diet, in both mice and humans, on blood polyamine concentrations was examined in this study. Jc1:ICR male mice were fed test diets containing 3 different polyamine concentrations. Healthy human male volunteers added 50 to 100 g of the polyamine-rich fermented soybean product, natto, to their daily intake. After 26 wk, the mean blood spermine concentration in mice receiving the test diet with high polyamine concentrations was 10.1+/-2.4 micromol/L, while the mean concentrations found in mice fed with a diet with normal or low polyamine concentrations were 5.2+/-0.9 and 4.7+/-0.5 micromol/L, respectively (p<0.05). A mean daily intake of 66.4+/-3.7 g (range=46.4-89.3 g) of natto for 2 mo by human volunteers increased the mean blood spermine concentration by a factor of 1.39 (n=10) (p<0.01), while in control volunteers (n=7), asked to exclude polyamine-rich foods from their diet, blood spermine concentration remained unchanged. The individual variability of blood polyamine levels was enhanced after polyamine intake in mice and, to a lesser extent, in humans. The long-term oral intake of enhanced polyamine diets increases blood polyamine levels in both mice and humans.
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Affiliation(s)
- Kuniyasu Soda
- Cardiovascular Research Institute, and 2 Department of Surgery, Saitama Medical Center, Jichi Medical University, 1-847 Amanuma, Saitama, Japan.
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178
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Kalač P. Recent advances in the research on biological roles of dietary polyamines in man. J Appl Biomed 2009. [DOI: 10.32725/jab.2009.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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179
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Changes in the content of biologically active polyamines during beef loin storage and cooking. Meat Sci 2009; 81:607-11. [DOI: 10.1016/j.meatsci.2008.10.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2008] [Revised: 10/15/2008] [Accepted: 10/20/2008] [Indexed: 11/20/2022]
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180
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181
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Kozová M, Kalač P, Pelikánová T. Biologically active polyamines in pig kidneys and spleen: Content after slaughter and changes during cold storage and cooking. Meat Sci 2008; 79:326-31. [DOI: 10.1016/j.meatsci.2007.10.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2007] [Revised: 10/03/2007] [Accepted: 10/11/2007] [Indexed: 10/22/2022]
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182
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Kim YC, Sim JH, Choi W, Kim CH, You RY, Xu WX, Lee SJ. Relaxant Effect of Spermidine on Acethylcholine and High K-induced Gastric Contractions of Guinea-Pig. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2008; 12:59-64. [PMID: 20157395 DOI: 10.4196/kjpp.2008.12.2.59] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
In our previous study, we found that spermine and putrescine inhibited spontaneous and acetylcholine (ACh)-induced contractions of guinea-pig stomach via inhibition of L-type voltage-dependent calcium current (VDCC(L)). In this study, we also studied the effect of spermidine on mechanical contractions and calcium channel current (I(Ba)), and then compared its effects to those by spermine and putrescine. Spermidine inhibited spontaneous contraction of the gastric smooth muscle in a concentration-dependent manner (IC(50)=1.1+/-0.11 mM). Relationship between inhibition of contraction and calcium current by spermidine was studied using 50 mM high K(+)-induced contraction: Spermidine (5 mM) significantly reduced high K(+) (50 mM)-induced contraction to 37+/-4.7% of the control (p<0.05), and inhibitory effect of spermidine on I(Ba) was also observed at a wide range of test potential in current/voltage (I/V) relationship. Pre- and post-application of spermidine (5 mM) also significantly inhibited carbachol (CCh) and ACh-induced initial and phasic contractions. Finally, caffeine (10 mM)-induced contraction which is activated by Ca(2+)-induced Ca(2+) release (CICR),' was also inhibited by pretreatment of spermidine (5 mM). These findings suggest that spermidine inhibits spontaneous and CCh-induced contraction via inhibition of VDCC(L) and Ca(2+) releasing mechanism in guinea-pig stomach.
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Affiliation(s)
- Young Chul Kim
- Department of Physiology, Chungbuk National University College of Medicine, Cheongju 361-763, Korea
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183
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Changes in the content of biologically active polyamines during storage and cooking of pig liver. Meat Sci 2007; 77:269-74. [DOI: 10.1016/j.meatsci.2007.03.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2006] [Revised: 03/12/2007] [Accepted: 03/14/2007] [Indexed: 11/22/2022]
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184
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Sugita Y, Takao K, Toyama Y, Shirahata A. Enhancement of intestinal absorption of macromolecules by spermine in rats. Amino Acids 2007; 33:253-60. [PMID: 17653818 DOI: 10.1007/s00726-007-0532-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2006] [Accepted: 02/01/2007] [Indexed: 10/23/2022]
Abstract
The aim of this study was to investigate the enhancing effect of polyamines on intestinal absorption of fluorescein isothiocyanate-labeled dextran (MW 4400, FD-4) in the in situ loop study and in vivo oral absorption study. Absorption of FD-4 from the jejunum was significantly enhanced by 5 mM spermine without serious membrane damage in the jejunum. An in vivo oral absorption study was also performed, and plasma FD-4 levels increased significantly after co-administration of 30 mM spermine. In the in vitro transport studies with Caco-2 cells, prolonged incubation with spermine resulted in a gradual decrease in transepithelial electrical resistance. This finding suggests that the absorption-enhancing mechanism of spermine partly includes opening the tight junctions of the epithelium via the paracellular route. These results indicate that excess oral ingestion of polyamines may have widespread health effects via the modulation of the intestinal epithelial barrier function.
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Affiliation(s)
- Y Sugita
- Department of Clinical Dietetics and Human Nutrition, Faculty of Pharmaceutical Sciences, Josai University, Sakado, Saitama, Japan.
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185
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Biogenic amines and polyamines in liver, kidney and spleen of roe deer and European brown hare. Eur Food Res Technol 2007. [DOI: 10.1007/s00217-007-0712-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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186
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Ignatenko NA, Besselsen DG, Roy UKB, Stringer DE, Blohm-Mangone KA, Padilla-Torres JL, Guillen-R JM, Gerner EW. Dietary putrescine reduces the intestinal anticarcinogenic activity of sulindac in a murine model of familial adenomatous polyposis. Nutr Cancer 2007; 56:172-81. [PMID: 17474863 PMCID: PMC4132951 DOI: 10.1207/s15327914nc5602_8] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The nonsteroidal antiinflammatory drug sulindac displays chemopreventive activity in patients with familial adenomatous polyposis (FAP). Sulindac metabolites induce apoptosis in colon tumor cells, in part, by a polyamine-dependent mechanism that can be suppressed with exogenous putrescine. To determine the relevance of this mechanism in animals, we treated Apc(Min/+) mice, a model of human FAP, with sulindac alone or in combination with dietary putrescine. Sulindac increased steady-state RNA levels and enzymatic activity of the polyamine catabolic enzyme spermidine/spermine N(1)-acetyltransferase and intestinal levels of monoacetylspermidine, spermidine, and spermine in the small intestine of mice. Sulindac also decreased the activity of the biosynthetic enzyme ornithine decarboxylase but not adenosylmethionine decarboxylase (AMD). Dietary putrescine increased intestinal putrescine contents, whereas the combination of dietary putrescine and sulindac yielded the highest levels of intestinal putrescine and correlated with a statistically significant reduction in AMD enzyme activity. Dietary putrescine did not statistically significantly increase tumorigenesis, although it significantly increased the grade of adenoma dysplasia (P < 0.05). The effectiveness of sulindac to suppress intestinal carcinogenesis was partially abrogated by dietary putrescine. These data suggest that sulindac exerts at least some of its anticarcinogenic effects in mice via a polyamine-dependent mechanism. Because high concentrations of putrescine can be found in certain dietary components, it may be advantageous to restrict dietary putrescine consumption in patients undergoing treatment with sulindac.
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Affiliation(s)
- Natalia A Ignatenko
- Department of Cell Biology and Anatomy, Arizona Cancer Center, The University of Arizona, Tucson, USA.
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187
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Changes in the content of biologically active polyamines during pork loin storage and culinary treatments. Eur Food Res Technol 2007. [DOI: 10.1007/s00217-007-0625-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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188
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Kim YC, Sim JH, Kim YH, Kwon SC, Lee SJ, Kim SR, Kim DW, Park SM, Youn SJ, Lee SJ, Xing DG, Xu WX, Kim KW. Effects of polyamines on contractility of guinea-pig gastric smooth muscle. J Korean Med Sci 2007; 22:48-56. [PMID: 17297251 PMCID: PMC2693568 DOI: 10.3346/jkms.2007.22.1.48] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
This study was designed to investigate the effects of polyamines on mechanical contraction and voltage-dependent calcium current (VDCC) of guinea-pig gastric smooth muscle. Mechanical contraction and calcium channel current I(Ba) were recorded by isometric tension recording and whole-cell patch clamp technique. Spermine, spermidine and putrescine inhibited spontaneous contraction of the gastric smooth muscle in a concentration-dependent manner. Spermine (2 mM) reduced high K+ (50 mM)-induced contraction to 16+/-6.4% of the control (n=9), and significantly inhibited I(Ba) in a reversible manner (p<0.05; IC50=0.8 mM). Pre- and post-treatment of tissue with spermine (2-5 mM, n=10) also inhibited acetylcholine (10 microM)-induced phasic contraction to 5+/-6.4% of the control. Inhibitory effect of spermine on I(Ba) was observed at a wide range of test potentials of current/voltage (I/V) relationship (p<0.05), and steady-state activation of I(Ba) was shifted to the right by spermine (p<0.05). Spermidine and putrescine (1 mM each) also inhibited I(Ba) to 51+/-5.7% and 81+/-5.3% of the control, respectively. And putrescine (1 mM) inhibited I(Ba) at whole tested potentials (p<0.05) without significant change of kinetics (p<0.05). Finally, 5 mM putrescine also inhibited high K+-induced contraction to 53+/-7.1% of the control (n=4). These findings suggest that polyamines inhibit contractions of guinea-pig gastric smooth muscle via inhibition of VDCC.
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Affiliation(s)
- Young Chul Kim
- Department of Physiology, Chungbuk National University, College of Medicine, Cheongju, Korea.
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189
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Kim JS, Kim TL, Kim KC, Choe C, Chung HW, Cho EW, Kim IG. S-Adenosylmethionine decarboxylase partially regulates cell growth of HL-60 cells by controlling the intracellular ROS level: Early senescence and sensitization to γ-radiation. Arch Biochem Biophys 2006; 456:58-70. [PMID: 17069747 DOI: 10.1016/j.abb.2006.09.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2006] [Revised: 09/20/2006] [Accepted: 09/20/2006] [Indexed: 11/17/2022]
Abstract
S-Adenosylmethionine decarboxylase (SAMDC) is a key enzyme for the biosynthesis of spermidine. SAMDC-suppressed HL-60 cells overproduced intracellular reactive oxygen species (ROS), which led to cell growth defect and partial cell death. ROS overproduction was caused by a decrease of the total glutathione (GSH) and the ratio of reduced to oxidized GSH, and by an increase of the intracellular iron uptake. When analyzed by real-time polymerase chain reaction, the transcripts of the genes involved in the GSH synthesis (gamma-glutamyl cysteine synthetase, GSH synthetase), as well as the gene of the GSH-reducing enzyme (NADP+-dependent isocitrate dehydrogenase), were decreased dramatically in these cells. DNA-repairing genes (ATM, PARP, RAD51 and MSH2) also were not activated transcriptionally. In these situations, excessive ROS induced severe DNA damage, which could not be repaired, and ultimately led the cells to a spontaneous cell death or an early senescence state. For such cells, gamma-radiation and cisplatin, which are direct DNA-damaging agents, were very effective for promoting cell death.
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Affiliation(s)
- Jin Sik Kim
- Department of Radiation Biology, Environment Radiation Research Group, Korea Atomic Energy Research Institute, Yuseong, Daejeon 305-600, Republic of Korea
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190
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Larqué E, Sabater-Molina M, Zamora S. Biological significance of dietary polyamines. Nutrition 2006; 23:87-95. [PMID: 17113752 DOI: 10.1016/j.nut.2006.09.006] [Citation(s) in RCA: 187] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2006] [Revised: 09/15/2006] [Accepted: 09/22/2006] [Indexed: 11/16/2022]
Abstract
Polyamines are classically known by their names of putrescine, spermine, and spermidine. They are synthesized endogenously from ornithine and are interconvertible. In addition, an exogenous supply of polyamines is provided by dietary intake and by intestinal absorption from the products of bacterial metabolism. Polyamine uptake occurs almost entirely in the gut, and afterward the various forms are metabolized in different tissues under the strict regulation of ornithine decarboxylase, which is the first enzyme involved in their synthesis. Polyamines are eliminated from the organism by means of oxidation reactions, appearing in urine in all their metabolic forms. Polyamines play an important role in regulating cell growth and proliferation, the stabilization of negative charges of DNA, RNA transcription, protein synthesis, apoptosis, and the regulation of the immune response. They are components of breast milk and might be important in neonatal gut maturation, for which reason the possible supplementation of infant formulas with these compounds is under study.
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Affiliation(s)
- Elvira Larqué
- Department of Physiology, Faculty of Biology, University of Murcia, Murcia, Spain.
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191
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Igarashi K. [Physiological functions of polyamines and regulation of polyamine content in cells]. YAKUGAKU ZASSHI 2006; 126:455-71. [PMID: 16819267 DOI: 10.1248/yakushi.126.455] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Polyamines (putrescine, spermidine, and spermine) are essential for normal cell growth. The polyamine level in cells is regulated by biosynthesis, degradation, and transport. The role of antizyme on polyamine biosynthesis and transport in mammalian cells and characteristics of polyamine transport in Escherichia coli and yeast are described briefly in this review. In addition, the effects of polyamines on protein synthesis and the NMDA receptor are outlined. Finally, the correlation between acrolein produced from polyamines by polyamine oxidase and chronic renal failure and brain stroke is summarized. Increased levels of polyamine oxidase and acrolein are good markers of chronic renal failure and brain stroke.
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Affiliation(s)
- Kazuei Igarashi
- Graduate School of Pharmaceutical Sciences, Chiba University, Inohana, Japan.
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192
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Caili F, Huan S, Quanhong L. A review on pharmacological activities and utilization technologies of pumpkin. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2006; 61:73-80. [PMID: 16758316 DOI: 10.1007/s11130-006-0016-6] [Citation(s) in RCA: 151] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Dietary plants and herbal preparations have been traditionally used as medicine in developing countries and obtained a resurgence of use in the United States and Europe. Research carried out in last few decades has validated several such claims of use of traditional medicine plants. Popularity of pumpkin in various systems of traditional medicine for several ailments (antidiabetic, antihypertensive, antitumor, immunomodulation, antibacterial, antihypercholesterolemia, intestinal antiparasitia, antiinflammation, antalgic) focused the investigators' attention on this plant. Considerable evidence from several epidemiological studies concerning bioactivities leads have stimulated a number of animal model, cell culture studies and clinical trials designed to test this pharmacological actions. In addition, it was found that technologies such as germination and fermentation could reduce antinutritional materials and affect the pharmacological activities of pumpkin. This review will focus on the main medicinal properties and technologies of pumpkin, and point out areas for future research to further elucidate mechanisms whereby this compound may reduce disease risk.
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Affiliation(s)
- Fu Caili
- College of Food Science and Nutrition Engineering, China Agriculture University, Beijing 100083, China
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