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Yoshida H, Yoshida N, Kuriyama I, Kanamori M, Sakamoto Y, Mizushina Y. Characteristics of Fatty Acid Distribution in Different Acyl Lipids of Colored Rice Bran Cultivars. FOOD SCIENCE AND TECHNOLOGY RESEARCH 2014. [DOI: 10.3136/fstr.20.121] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Profiles of lipid components, fatty acid distributions of triacylglycerols and phospholipids in Jack beans (Canavalia gladiata DC.). Food Chem 2013; 136:807-12. [DOI: 10.1016/j.foodchem.2012.08.087] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2012] [Revised: 07/23/2012] [Accepted: 08/29/2012] [Indexed: 11/20/2022]
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Yoshida H, Yoshida N, Tomiyama-Sakamoto Y, Mizushina Y. Characteristic distributions of fatty acids in different lipids from Jack beans (Canavalia gladiataDC.). EUR J LIPID SCI TECH 2012. [DOI: 10.1002/ejlt.201100341] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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YOSHIDA H, KURIYAMA I, TOMIYAMA-SAKAMOTO Y, MIZUSHINA Y. Profiles of Lipid Components, Fatty Acids and Triacylglycerol Molecular Species in Lipids of Rice Bran Cultivars. FOOD SCIENCE AND TECHNOLOGY RESEARCH 2012. [DOI: 10.3136/fstr.18.219] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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YOSHIDA H, YOSHIDA N, TOMIYAMA-SAKAMOTO Y, MIZUSHINA Y. Characteristics of Lipid Components and Triacylglycerol Molecular Species of Jack Bean (Canavalia gladiata DC.). FOOD SCIENCE AND TECHNOLOGY RESEARCH 2012. [DOI: 10.3136/fstr.18.893] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Lipid components, fatty acid distributions of triacylglycerols and phospholipids in rice brans. Food Chem 2011; 129:479-484. [DOI: 10.1016/j.foodchem.2011.04.102] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2010] [Revised: 03/23/2011] [Accepted: 04/28/2011] [Indexed: 11/19/2022]
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Yoshida H, Tanigawa T, Kuriyama I, Yoshida N, Tomiyama Y, Mizushina Y. Variation in fatty acid distribution of different acyl lipids in rice (Oryza sativa L.) brans. Nutrients 2011; 3:505-14. [PMID: 22254108 PMCID: PMC3257686 DOI: 10.3390/nu3040505] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2011] [Revised: 04/05/2011] [Accepted: 04/18/2011] [Indexed: 11/16/2022] Open
Abstract
The lipids extracted from rice brans were classified by thin-layer chromatography into eight fractions, and their fatty acid (FA) compositions were investigated among five different Japanese cultivars. The lipids of these rice brans comprised mainly triacylglycerols (TAG; 84.9-86.0 wt%), free FA (4.2-4.6 wt%), and phospholipids (PL; 6.5-6.7 wt%), whilst other components were also detected in minor proportions (0.2-2.1 wt%). The PL components included phosphatidyl choline (43.3-46.8 wt%) phosphatidyl ethanolamine (25.0-27.3 wt%) and phosphatidyl inositol (20.2-23.2 wt%). Comparison of the different cultivars showed, with a few exceptions, no substantial difference (P > 0.05) in FA distribution. FA distribution of TAG among the five cultivars was characterized as: unsaturated FA predominantly concentrated at the sn-2 position and saturated FA primarily occupying the sn-1 or sn-3 position in these lipids. These results suggest that the rice bran lipids may be well incorporated into our daily diet to improve nutritional value of the Japanese diet.
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Affiliation(s)
- Hiromi Yoshida
- Department of Nutritional Science, Kobe Gakuin University, Kobe, Hyogo 651-2180, Japan; (T.T.); (I.K.); (Y.T.); (Y.M.)
- Cooperative Research Center of Life Sciences, Kobe Gakuin University, Kobe, Hyogo 650-8586, Japan
- Author to whom correspondence should be addressed; ; Tel.: +81-78-974-1551; Fax: +81-78-974-5689
| | - Takaaki Tanigawa
- Department of Nutritional Science, Kobe Gakuin University, Kobe, Hyogo 651-2180, Japan; (T.T.); (I.K.); (Y.T.); (Y.M.)
| | - Isoko Kuriyama
- Department of Nutritional Science, Kobe Gakuin University, Kobe, Hyogo 651-2180, Japan; (T.T.); (I.K.); (Y.T.); (Y.M.)
| | - Naoko Yoshida
- Department of Biomedical Sciences, College of Life Sciences, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan;
| | - Yuka Tomiyama
- Department of Nutritional Science, Kobe Gakuin University, Kobe, Hyogo 651-2180, Japan; (T.T.); (I.K.); (Y.T.); (Y.M.)
| | - Yoshiyuki Mizushina
- Department of Nutritional Science, Kobe Gakuin University, Kobe, Hyogo 651-2180, Japan; (T.T.); (I.K.); (Y.T.); (Y.M.)
- Cooperative Research Center of Life Sciences, Kobe Gakuin University, Kobe, Hyogo 650-8586, Japan
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Yoshida H, Yoshida N, Tomiyama Y, Mizushina Y. Composition and Regiodistribution of Fatty Acids in Triacylglycerols and Phospholipids from Red and Black Rices. Cereal Chem 2011. [DOI: 10.1094/cchem-10-09-0135] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Hiromi Yoshida
- Department of Nutritional Science, Kobe Gakuin University, Kobe, Hyogo, 651-2180 Japan
- Cooperative Research Center of Life Sciences, Kobe Gakuin University, Kobe, Hyogo, 650-8586 Japan
- Corresponding author. Phone: +78-974-1551. Fax: +78-974-5689. E-mail:
| | - Naoko Yoshida
- Department of Biochemical Sciences, College of Sciences, Ritsumeikan University Kusatu, Shiga, 525-8577 Japan
| | - Yuka Tomiyama
- Department of Nutritional Science, Kobe Gakuin University, Kobe, Hyogo, 651-2180 Japan
| | - Yoshiyuki Mizushina
- Department of Nutritional Science, Kobe Gakuin University, Kobe, Hyogo, 651-2180 Japan
- Cooperative Research Center of Life Sciences, Kobe Gakuin University, Kobe, Hyogo, 650-8586 Japan
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Regiospecific Profiles of Fatty Acids in Triacylglycerols and Phospholipids from Adzuki Beans (Vigna angularis). Nutrients 2010. [DOI: 10.3390/nu2010049] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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YOSHIDA H, YOSHIDA N, TOMIYAMA Y, MIZUSHINA Y. Fatty Acid Characteristics of Triacylglycerols and Phospholipids in Adzuki Beans (Vigna angularis). FOOD SCIENCE AND TECHNOLOGY RESEARCH 2010. [DOI: 10.3136/fstr.16.209] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Yoshida H, Tomiyama Y, Yoshida N, Shibata K, Mizushina Y. Regiospecific profiles of fatty acids in triacylglycerols and phospholipids from Adzuki beans (Vigna angularis). Nutrients 2010; 2:49-59. [PMID: 22253991 PMCID: PMC3257609 DOI: 10.3390/nu20100049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2009] [Accepted: 01/14/2010] [Indexed: 11/18/2022] Open
Abstract
Regiospecific distributions of fatty acids (FA) of triacylglycerols (TAG) and phospholipids (PL) isolated from five cultivars of adzuki beans (Vigna angularis) were investigated. The lipids comprised mainly PL (72.2-73.4 wt-%) and TAG (20.6-21.9 wt-%), whilst other components were detected in minor proportions (0.1-3.4 wt-%). The principal profiles of the FA distribution in the TAG and PL were evident in the beans among the five cultivars: unsaturated FA were predominantly distributed in the sn-2 position, whilst saturated FA primarily occupied the sn-1 or the sn-3 position in the these lipids. The results would be useful information to both producers and consumers for manufacturing traditional adzuki confectionaries such as wagashi in Japan.
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Affiliation(s)
- Hiromi Yoshida
- Department of Nutritional Sciences, Kobe Gakuin University, Kobe, Hyogo, 651-2180 Japan; (Y.T.); s-mail.kobegakuin.ac.jp (K.S.); (Y.M.)
- Cooperative Research Center of Life Sciences, Kobe Gakuin University, Kobe, Hyogo, 650-8586 Japan
- Author to whom correspondence should be addressed;
| | - Yuka Tomiyama
- Department of Nutritional Sciences, Kobe Gakuin University, Kobe, Hyogo, 651-2180 Japan; (Y.T.); s-mail.kobegakuin.ac.jp (K.S.); (Y.M.)
| | - Naoko Yoshida
- Department of Biomedical Sciences, College of Life Sciences, Ritsumeikan University, Kusatsu, Shiga 525-8577 Japan;
| | - Kyoko Shibata
- Department of Nutritional Sciences, Kobe Gakuin University, Kobe, Hyogo, 651-2180 Japan; (Y.T.); s-mail.kobegakuin.ac.jp (K.S.); (Y.M.)
| | - Yoshiyuki Mizushina
- Department of Nutritional Sciences, Kobe Gakuin University, Kobe, Hyogo, 651-2180 Japan; (Y.T.); s-mail.kobegakuin.ac.jp (K.S.); (Y.M.)
- Cooperative Research Center of Life Sciences, Kobe Gakuin University, Kobe, Hyogo, 650-8586 Japan
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Yoshida H, Tomiyama Y, Yoshida N, Mizushina Y. Characteristics of lipid components, fatty acid distributions and triacylglycerol molecular species of adzuki beans (Vigna angularis). Food Chem 2009. [DOI: 10.1016/j.foodchem.2009.01.072] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Yoshida H, Tomiyama Y, Yoshida N, Mizushina Y. Regiospecific distribution of fatty acids in triacylglycerols and phospholipids from broad beans (
Vicia fab
a). EUR J LIPID SCI TECH 2009. [DOI: 10.1002/ejlt.200800036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hiromi Yoshida
- Department of Nutritional Science, Kobe Gakuin University, Kobe, Hyogo, Japan
- Cooperative Research Center of Life Sciences, Kobe Gakuin University, Kobe, Hyogo, Japan
| | - Yuka Tomiyama
- Department of Nutritional Science, Kobe Gakuin University, Kobe, Hyogo, Japan
| | - Naoko Yoshida
- Department of Biomedical Sciences, College of Life Sciences, Ritsumeikan University, Kusatsu, Shiga, Japan
| | - Yoshiyuki Mizushina
- Department of Nutritional Science, Kobe Gakuin University, Kobe, Hyogo, Japan
- Cooperative Research Center of Life Sciences, Kobe Gakuin University, Kobe, Hyogo, Japan
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Yoshida H, Saiki M, Tomiyama Y, Mizushina Y. Positional distribution of fatty acids in triacylglycerols and phospholipids from adzuki beans (
Vigna angularis
). EUR J LIPID SCI TECH 2008. [DOI: 10.1002/ejlt.200700211] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hiromi Yoshida
- Department of Nutritional Science, Kobe Gakuin University, Kobe, Hyogo, Japan
- Cooperative Research Center of Life Sciences, Kobe Gakuin University, Kobe, Hyogo, Japan
| | - Masayuki Saiki
- Department of Nutritional Science, Kobe Gakuin University, Kobe, Hyogo, Japan
| | - Yuka Tomiyama
- Department of Nutritional Science, Kobe Gakuin University, Kobe, Hyogo, Japan
- Cooperative Research Center of Life Sciences, Kobe Gakuin University, Kobe, Hyogo, Japan
| | - Yoshiyuki Mizushina
- Department of Nutritional Science, Kobe Gakuin University, Kobe, Hyogo, Japan
- Cooperative Research Center of Life Sciences, Kobe Gakuin University, Kobe, Hyogo, Japan
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Yoshida H, Tomiyama Y, Tanaka M, Mizushina Y. Distribution of fatty acids in triacylglycerols and phospholipids from peas (Pisum sativum L.). JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2007; 87:2709-2714. [PMID: 20836180 DOI: 10.1002/jsfa.3035] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
BACKGROUND The fatty acid distribution of triacylglycerols (TAG) and major phospholipids (PL) obtained from four varieties of peas (Pisum sativum) was investigated. The total lipids extracted from the peas were separated by thin layer chromatography into seven fractions. RESULTS The major lipid components were PL (52.2-61.3%) and TAG (31.2-40.3%), while hydrocarbons, steryl esters, free fatty acids and diacylglycerols (sn-1,3 and sn-1,2) were also present in minor proportions (5.6-9.2%). The main PL components isolated from the four varieties were phosphatidylcholine (42.3-49.2%), phosphatidylinositol (23.3-25.2%) and phosphatidylethanolamine (17.7-20.5%). Significant differences (P < 0.05) in fatty acid distribution were found for different pea varieties. Phosphatidylinositol was unique in that it had the highest saturated fatty acid content among the three PL. However, the principal characteristics of the fatty acid distribution in the TAG and three PL were evident among the four varieties: unsaturated fatty acids were predominantly located in the sn-2 position while saturated fatty acids primarily occupied the sn-1 or sn-3 position in the oils of the peas. CONCLUSION These results should be useful to both producers and consumers for the manufacture of pea foods in Japan. Copyright © 2007 Society of Chemical Industry.
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Affiliation(s)
- Hiromi Yoshida
- Department of Nutritional Science, Kobe Gakuin University, Kobe, Hyogo 651-2180, Japan
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YOSHIDA HIROMI, TANAKA MEGUMI, TOMIYAMA YUKA, MIZUSHINA YOSHIYUKI. REGIONAL DISTRIBUTION IN THE FATTY ACIDS OF TRIACYLGLYCEROLS AND PHOSPHOLIPIDS OF SESAME SEEDS (SESAMUM INDICUM). ACTA ACUST UNITED AC 2007. [DOI: 10.1111/j.1745-4522.2007.00079.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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18
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Yoshida H, Kanei S, Tomiyama Y, Mizushina Y. Regional distribution in the fatty acids of triacylglycerols and phospholipids within soybean seeds (
Glycine max
L.). EUR J LIPID SCI TECH 2006. [DOI: 10.1002/ejlt.200500248] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hiromi Yoshida
- Department of Nutritional Science, Kobe Gakuin University, Kobe, Hyogo, Japan
- Life Science Center, Kobe Gakuin University, Kobe, Hyogo, Japan
| | - Sako Kanei
- Department of Nutritional Science, Kobe Gakuin University, Kobe, Hyogo, Japan
| | - Yuka Tomiyama
- Department of Nutritional Science, Kobe Gakuin University, Kobe, Hyogo, Japan
- Life Science Center, Kobe Gakuin University, Kobe, Hyogo, Japan
| | - Yoshiyuki Mizushina
- Department of Nutritional Science, Kobe Gakuin University, Kobe, Hyogo, Japan
- Life Science Center, Kobe Gakuin University, Kobe, Hyogo, Japan
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YOSHIDA HIROMI, TOMIYAMA YUKA, MIZUSHINA YOSHIYUKI. CHARACTERIZATION IN THE FATTY ACID DISTRIBUTIONS OF TRIACYLGLYCEROLS AND PHOSPHOLIPIDS IN KIDNEY BEANS (PHASEOLUS VULGARIS L.). ACTA ACUST UNITED AC 2005. [DOI: 10.1111/j.1745-4522.2005.00016.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Fatty acid distributions of triacylglycerols and phospholipids in peanut seeds (Arachis hypogaea L.) following microwave treatment. J Food Compost Anal 2005. [DOI: 10.1016/j.jfca.2003.12.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Yoshida H, Hirakawa Y, Abe S. Influence of microwave roasting on positional distribution of fatty acids of triacylglycerols and phospholipids in sunflower seeds (Helianthus annuus L.). EUR J LIPID SCI TECH 2001. [DOI: 10.1002/1438-9312(200104)103:4<201::aid-ejlt201>3.0.co;2-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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22
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Microwave heating influences on fatty acid distributions of triacylglycerols and phospholipids in hypocotyl of soybeans(glycine max L.). Food Chem 1999. [DOI: 10.1016/s0308-8146(99)00072-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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23
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Blanc P, Revol A, Pacheco H. Chronical ingestion of oxidized oil in the rat: Effect on lipid composition and on cytidylyl transferase activity in various tissues. Nutr Res 1992. [DOI: 10.1016/s0271-5317(05)80641-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Yoshida H, Tatsumi M, Kajimoto G. Influence of fatty acids on the tocopherol stability in vegetable oils during microwave heating. J AM OIL CHEM SOC 1992. [DOI: 10.1007/bf02540560] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Kanazawa K, Ashida H. Target enzymes on hepatic dysfunction caused by dietary products of lipid peroxidation. Arch Biochem Biophys 1991; 288:71-8. [PMID: 1898026 DOI: 10.1016/0003-9861(91)90166-g] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Dietary products of lipid peroxidation cause hepatic dysfunction due to decreases in the activities of some hepatic enzymes and to depletion of CoA. An idea about the decreases and depletion is that the enzymes and CoA could be injured directly by the incorporated products in the liver. Their inactivations in vitro were then examined using a reasonable amount of peroxidation products. The hepatic cytosol, microsomes, and mitochondria were incubated with 10, 15, and 20 micrograms/mg protein of peroxidation products, respectively, and changes in the enzymatic activities were monitored. Glucose-6-phosphate dehydrogenase, mitochondrial NAD-dependent aldehyde dehydrogenase, glucokinase, and glyceradehyde phosphate dehydrogenase were inactivated, and the CoA level was decreased, but the other hepatic enzymes were not. Although glyceraldehyde phosphate dehydrogenase was most sensitive to peroxidation products in vitro, the decrease in activity was not detected by the oral dose of secondary products. On the other hand, among the components of peroxidation products, hydroperoxides and polymers are not incorporated in the liver, but decomposed products of low molecular weight are incorporated. Glucokinase among the above enzymes was not inactivated by the low-molecular-weight products. It was therefore concluded that glucose-6-phosphate dehydrogenase, mitochondrial NAD-dependent aldehyde dehydrogenase, and CoA were targets of the direct attack by incorporated components of peroxidation products in the liver.
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Affiliation(s)
- K Kanazawa
- Department of Agricultural Chemistry, Kobe University, Japan
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Kanazawa K. Hepatotoxicity caused by dietary secondary products originating from lipid peroxidation. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 1991; 289:237-53. [PMID: 1832811 DOI: 10.1007/978-1-4899-2626-5_17] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Hepatic dysfunction caused by oxidative stress when secondary peroxidation products were administered orally was investigated in rat. In serum at 24 hr after the administration of secondary products, the contents of lipid peroxides reached a maximum, the level of tocopherol reached a minimum, and the transaminase activities were elevated. In the liver, the lipid peroxide contents were kept high between 6 and 24 hr and tocopherol level was kept low between 15 and 48 hr after the does. Therefore, the hepatic oxidative stress was most severe around 15 hr after the dose. Dysfunction in the liver having oxidative stress was then made clear. One was a disturbance in synthetic system of glucose 6-phosphate. The decreases in activities of phosphoglucomutase and glucokinase reduced a level of glucose 6-phosphate, which suppressed the supply of NADPH in pentose cycle, while the NADPH was consuming well for detoxification of endogenous lipid peroxides. Another was specific inactivations of mitochondrial succinate dehydrogenase and aldehyde dehydrogenase. A third was the depletion of CoASH, which induced the decreases in activities of citrate cycle and lipogenesis. The other was a formation of lipofuscin. Even after the liver was recovering from the oxidative stress, the liver was getting hypertrophy and lipofuscin was accumulating. To make the cause of hepatic dysfunction clear, it was examined whether the incorporated secondary products in the liver could directly attack the enzymes or not. A reasonable amount of secondary products present in the liver was estimated, and then the amount of secondary products was added in hepatic subcellular organelles in vitro. It was found that mitochondrial NAD-dependent aldehyde dehydrogenase, glucokinase, and CoASH were directly attacked and inactivated by the incorporated secondary products in the liver. Thus, a part of dietary secondary products was incorporated into liver, and was not detoxified, but injured the enzymes and CoASH. Then it resulted in lipofuscin formation.
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Affiliation(s)
- K Kanazawa
- Department of Agricultural Chemistry, Kobe University, Japan
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Frank H, Thiel D, MacLeod J. Mass spectrometric detection of cross-linked fatty acids formed during radical-induced lesion of lipid membranes. Biochem J 1989; 260:873-8. [PMID: 2764908 PMCID: PMC1138757 DOI: 10.1042/bj2600873] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A mass spectrometric method is described for the quantitative determination of dimers of polyunsaturated fatty acids (PUFA) formed in the hepatic endoplasmic reticulum of rats upon inhalation of tetrachloromethane. The results show that dimers account for a considerable fraction of microsomal PUFA which disappear during CCl4 metabolism. Cross-linking of the membrane lipids of the endoplasmic reticulum seems to be a significant process with respect to cell toxicity.
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Affiliation(s)
- H Frank
- Institut für Toxikologie der Universität Tübingen, Federal Republic of Germany
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Frank H, Dürk H, Thiel D. Fatty acids in liver microsomal lipids of rats exposed to hypoxia, tetrachloromethane, or both. BIOCHIMICA ET BIOPHYSICA ACTA 1987; 922:54-61. [PMID: 2959325 DOI: 10.1016/0005-2760(87)90244-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Arachidonic and docosahexaenoic acid in hepatic microsomal lipids from male Sprague-Dawley rats are greatly lowered when the animals have been exposed to tetrachloromethane; at the same time, palmitic, oleic and linoleic acid are significantly increased. Hypoxia alone causes similar derangements, but to a lesser extent. These are largely corrected 18 h after exposure; the effects induced by tetrachloromethane are persistent. The increases in 16:0, 18:1 and 18:2 suggest that in both cases microsomal enzymes involved in fatty acid metabolism are inhibited, either reversibly or irreversibly. Reduction of oxygen partial pressure during tetrachloromethane exposure has little effect upon hepatotoxicity as judged by hepatic enzymes in serum; only the onset of their release into the bloodstream is earlier.
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Affiliation(s)
- H Frank
- Institut für Toxikologie, Universität Tübingen, F.R.G
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Awl RA, Frankel EN, Brooks DD, Weisleder D. Cyclic fatty esters: synthesis, characterization, and lipolysis of isomeric triglycerides of 9-(6-propyl-3-cyclohexenyl)-(Z)8-nonenoic acid. Chem Phys Lipids 1986; 41:65-80. [PMID: 3757149 DOI: 10.1016/0009-3084(86)90125-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Triglycerides of a model cyclic fatty acid (CFA) 9-(6-propyl-3-cyclohexenyl)-(Z)8-nonenoic acid (Ia) were synthesized for biological and toxicity evaluations. The monoacid triglyceride II (CyCyCy) was interesterified with triolein (OOO) to obtain mixtures of diacid triglycerides: III (OOCy), IV (OCyO), V (OCyCy), and VI (CyOCy). The interesterification mixtures were separated by preparative HPLC into two 'critical pairs' of isomeric triglycerides. Triglycerides III-VI were synthesized and a 13C-NMR method was developed to estimate 'critical pairs'. CFA-triglycerides were characterized by IR, NMR, HPLC and capillary GLC, and their relative rates of hydrolysis by lipase were compared. Although tricyclin (II) was completely resistant to lipolysis, triglycerides III and VI hydrolyzed significantly slower than triolein, and the 'critical pairs' hydrolyzed as readily as triolein. Therefore, partial CFA-triglycerides formed in heat-abused fats can undergo lipolysis and likely be absorbed like normal dietary fats.
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Kanazawa K, Kanazawa E, Natake M. Uptake of secondary autoxidation products of linoleic acid by the rat. Lipids 1985; 20:412-9. [PMID: 4033361 DOI: 10.1007/bf02534231] [Citation(s) in RCA: 87] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Incorporation of secondary autoxidation products (SP) of linoleic acid into the rat body was investigated. Radioactive SP was administered orally to a group of 5 rats, and excretions of radioactive substances in feces, urine and respiration were measured and compared with excretions from rats fed linoleic acid and its hydroperoxides. The SP-fed group excreted 45% and the other groups about 10% of the administered radioactivity through feces. Urinary excretion accounted for 52% of activity ingested in the SP group and less than 30% in the other groups. The 14CO2 produced in each group was about 25% of the ingested activity. Incorporation of the radioactive substances of SP into tissues and organs was measured periodically after administration of a single dose. The radioactive substances accumulated in the liver between 12-24 hr after administration and accounted for 2.6% of the total amount given, the highest level of all tissues and organs. This accumulation led to an elevation of serum transaminase activities, an increase in hepatic lipid peroxide, as determined by thiobarbituric acid test, and a slight hypertrophy of liver (1.5-fold). Therefore, absorbed SP appeared to contribute to the deleterious condition of the liver.
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Gere A, Sebedio JL, Grandgirard A. Studies on some Hungarian Fats and Oils Obtained from Commercial Frying Processes. ACTA ACUST UNITED AC 1985. [DOI: 10.1002/lipi.19850870909] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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