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Watanabe F, Bito T, Koseki K. Determination of cobalamin and related compounds in foods. VITAMINS AND HORMONES 2022; 119:491-504. [PMID: 35337633 DOI: 10.1016/bs.vh.2022.01.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The microbiological assay of total cobalamin (vitamin B12) by Lactobacillus delbrueckii subsp. lactis ATCC7830 is now used worldwide in food analysis because of its high sensitivity, low running cost, and no expensive instruments. It has been recently reported that some foods contain a substantial number of inactive corrinoid compounds, some of which are active in this bacterium. These results indicate that the microbiological method must be replaced with high-performance liquid chromatography or liquid chromatography/electrospray ionization-tandem mass spectrometry as there can specifically determine biologically active cobalamin. Nowadays, powerful tools, such as immunoaffinity columns, purify cobalamin simply and specifically. In this chapter, we summarized the determination methods of cobalamin and related compounds in foods. Various inactive corrinoids found in foods were also characterized.
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Affiliation(s)
- F Watanabe
- Division of Applied Bioresource Chemistry, United Graduate School of Agricultural Sciences, Tottori University, Tottori, Japan; Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University, Tottori, Japan.
| | - T Bito
- Division of Applied Bioresource Chemistry, United Graduate School of Agricultural Sciences, Tottori University, Tottori, Japan; Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University, Tottori, Japan
| | - K Koseki
- Division of Applied Bioresource Chemistry, United Graduate School of Agricultural Sciences, Tottori University, Tottori, Japan
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Khairan P, Sobue T, Eshak ES, Zha L, Kitamura T, Sawada N, Iwasaki M, Inoue M, Yamaji T, Shimazu T, Iso H, Tsugane S. Association of dietary intakes of vitamin B12, vitamin B6, folate, and methionine with the risk of esophageal cancer: the Japan Public Health Center-based (JPHC) prospective study. BMC Cancer 2021; 21:982. [PMID: 34470601 PMCID: PMC8411535 DOI: 10.1186/s12885-021-08721-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 08/18/2021] [Indexed: 01/12/2023] Open
Abstract
Background B vitamins and methionine are essential substrates in the one-carbon metabolism pathway involved in DNA synthesis and methylation. They may have essential roles in cancer development. We aimed to evaluate the associations of dietary intakes of vitamin B12, vitamin B6, folate, and methionine with the risk of esophageal cancer (EC) using data from the Japan Public Health Center-based Prospective Study. Methods We included 87,053 Japanese individuals who completed a food frequency questionnaire and were followed up from 1995–1998 to 2013 and 2015. Hazard ratios (HRs) and 95% confidence intervals (CIs) were calculated by Cox proportional-hazard regression across quintiles of dietary intakes of B vitamins and methionine. Results After 1,456,678 person-years of follow-up, 427 EC cases were documented. The multivariable HR (95% CI) of incident EC in the highest versus lowest quintile of dietary intake of vitamin B12 was 1.75 (1.13–2.71; p-trend=0.01). Stratification analysis based on alcohol consumption showed that higher dietary intakes of vitamin B12 and methionine were associated with an increased risk of EC among never-drinkers; HRs (95% CIs) were 2.82 (1.18–6.74; p-trend=0.009; p-interaction=0.18) and 3.45 (1.32–9.06; p-trend=0.003; p-interaction 0.02) for vitamin B12 and methionine, respectively. Meanwhile, there was no association between vitamin B12 and methionine intake with the risk of EC among drinkers. There were no associations between dietary intake of folate or vitamin B6 and the risk of EC. Conclusion Dietary intake of vitamin B12 was positively associated with the risk of EC in the Japanese population. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-021-08721-8.
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Affiliation(s)
- Paramita Khairan
- Department of Social and Environmental Medicine, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan.,Department of Internal Medicine, Faculty of Medicine, University of Muhammadiyah, Jakarta, Indonesia
| | - Tomotaka Sobue
- Department of Social and Environmental Medicine, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan.
| | - Ehab Salah Eshak
- Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan.,Department of Public Health and Preventive Medicine, Faculty of Medicine, Minia University, Minya, Egypt
| | - Ling Zha
- Department of Social and Environmental Medicine, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Tetsuhisa Kitamura
- Department of Social and Environmental Medicine, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Norie Sawada
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, Chuo-ku Tokyo, 104-0045, Japan
| | - Motoki Iwasaki
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, Chuo-ku Tokyo, 104-0045, Japan
| | - Manami Inoue
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, Chuo-ku Tokyo, 104-0045, Japan
| | - Taiki Yamaji
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, Chuo-ku Tokyo, 104-0045, Japan
| | - Taichi Shimazu
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, Chuo-ku Tokyo, 104-0045, Japan
| | - Hiroyasu Iso
- Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan
| | - Shoichiro Tsugane
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, Chuo-ku Tokyo, 104-0045, Japan
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Maternal intake of one-carbon metabolism-related B vitamins and anorectal malformations in the Japan Environment and Children's Study. Br J Nutr 2020; 124:865-873. [PMID: 32468981 DOI: 10.1017/s0007114520001816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The occurrence of anorectal malformations (ARM) is thought to be reduced with sufficient folate intake. However, there is no apparent evidence. We focused on enzyme cofactors for one-carbon metabolism, including folate (vitamin B9), vitamin B6 and vitamin B12, and explored the association between maternal combined intake of these B vitamins and the risk of ARM. Using baseline data from a Japanese nationwide birth cohort study between 2011 and 2014, we analysed data of 89 235 women (mean age at delivery = 31·2 years) who delivered singleton live births without chromosomal anomalies. Information on dietary intake was obtained via a FFQ focused on early pregnancy and used to estimate B vitamin intake. We also collected information on the frequency of folic acid supplement use. ARM occurrence was ascertained from medical records. We identified forty-three cases of ARM diagnosed up to the first month after birth (4·8 per 10 000 live births). In terms of individual intake of the respective B vitamins, high vitamin B6 intake was non-significantly associated with reduced odds of ARM. Compared with women in the low combined B vitamin intake group, the OR of having an infant with ARM was 0·4 (95 % CI 0·2, 1·0) in the high intake group (folate ≥400 μg/d, and upper half of vitamin B6 and/or vitamin B12). In conclusion, our cohort analysis suggested an inverse association between the combined intake of one-carbon metabolism-related B vitamins in early pregnancy and ARM occurrence.
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Sugawara K, Okada Y, Hirota Y, Sakaguchi K, Ogawa W. Relationship between metformin use and vitamin B 12 status in patients with type 2 diabetes in Japan. J Diabetes Investig 2020; 11:917-922. [PMID: 31868971 PMCID: PMC7378433 DOI: 10.1111/jdi.13200] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 12/09/2019] [Accepted: 12/15/2019] [Indexed: 12/18/2022] Open
Abstract
AIMS/INTRODUCTION Metformin therapy has been associated with vitamin B12 (VB12) deficiency, but information regarding this adverse effect in Asian populations is limited. We have now examined the relationship between metformin use and VB12 status in individuals with type 2 diabetes mellitus in Japan. MATERIALS AND METHODS This cross-sectional study was carried out with type 2 diabetes mellitus patients treated (Met group, n = 122) or not treated (control group, n = 63) with metformin. The primary end-point was the difference in the serum concentration of homocysteine, a marker of VB12 activity, between the two groups. The serum concentrations of VB12, blood hemoglobin level and mean corpuscular volume were also compared between the groups. Subset analysis was carried out with individuals aged ≥70 years. The potential correlation between the daily dose or duration of metformin treatment and the other measured parameters was also examined. RESULTS The level of homocysteine, as well as the VB12 level, hemoglobin concentration and mean corpuscular volume, did not differ significantly between the control and treated with metformin groups. The level of homocysteine was positively and that of VB12 negatively correlated with the daily dose of metformin. Among elderly individuals, the hemoglobin level was significantly lower in the treated with metformin group than in the control group, although the mean corpuscular volume was similar in the two groups. CONCLUSIONS The risk of VB12 deficiency during metformin treatment appears to be low in Japanese type 2 diabetes mellitus patients. However, high doses of metformin might result in a moderate decrease in the circulating VB12 level, as well as in anemia in elderly individuals.
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Affiliation(s)
- Kenji Sugawara
- Division of Diabetes and EndocrinologyKobe University Graduate School of MedicineKobeJapan
| | - Yuko Okada
- Division of Diabetes and EndocrinologyKobe University Graduate School of MedicineKobeJapan
| | - Yushi Hirota
- Division of Diabetes and EndocrinologyKobe University Graduate School of MedicineKobeJapan
| | - Kazuhiko Sakaguchi
- Division of General Internal MedicineDepartment of Internal MedicineKobe University Graduate School of MedicineKobeJapan
| | - Wataru Ogawa
- Division of Diabetes and EndocrinologyKobe University Graduate School of MedicineKobeJapan
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Okada C, Imano H, Yamagishi K, Cui R, Umesawa M, Maruyama K, Muraki I, Hayama-Terada M, Shimizu Y, Sankai T, Okada T, Kiyama M, Kitamura A, Iso H. Dietary Intake of Energy and Nutrients from Breakfast and Risk of Stroke in The Japanese Population: The Circulatory Risk in Communities Study (CIRCS). J Atheroscler Thromb 2019; 26:145-153. [PMID: 29899172 PMCID: PMC6365157 DOI: 10.5551/jat.44438] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 04/24/2018] [Indexed: 11/15/2022] Open
Abstract
AIMS The frequency of breakfast intake has been reported to be inversely associated with the risk of cardiovascular events; however, it is uncertain what the impact of the energy and nutrient intakes from breakfast are. We assessed the association between these intakes from breakfast and the risk of stroke prospectively. METHODS In a baseline survey of four Japanese communities between 1981 and 1990, we enrolled 3 248 residents (1 662 men and 1 586 women) aged 40-59 years who were free from stroke and heart disease and who responded to the 24-hour dietary recall survey. We assessed the dietary intake at breakfast, lunch, dinner, and other times separately. RESULTS During the median 25-year follow-up, 230 individuals (147 men and 83 women) developed stroke. After adjustment for age, community, other dietary intakes, and lifestyle and physiological factors, the multivariable-adjusted hazard ratios (95% confidence intervals) of intracerebral hemorrhage for the highest versus lowest quartiles of energy intake from breakfast were 0.38 (0.15-0.99) in men and 1.36 (0.36-5.10) in women. For the major nutrients, a higher saturated or monounsaturated fat intake at breakfast was associated with a reduced risk of intracerebral hemorrhage in men, and remained statistically significant after further adjustment for intake of other major nutrients from breakfast. CONCLUSIONS A higher intake of energy from breakfast, primarily saturated or monounsaturated fat, was associated with a reduced risk of intracerebral hemorrhage in Japanese men.
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Affiliation(s)
- Chika Okada
- Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Hironori Imano
- Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
- Osaka Center for Cancer and Cardiovascular Disease Prevention, Osaka, Japan
| | - Kazumasa Yamagishi
- Osaka Center for Cancer and Cardiovascular Disease Prevention, Osaka, Japan
- Department of Public Health, Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Renzhe Cui
- Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Mitsumasa Umesawa
- Osaka Center for Cancer and Cardiovascular Disease Prevention, Osaka, Japan
- Department of Public Health, Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
- Department of Public Health, Dokkyo Medical University, Tochigi, Japan
| | - Koutatsu Maruyama
- Osaka Center for Cancer and Cardiovascular Disease Prevention, Osaka, Japan
- Department of Bioscience, Graduate School of Agriculture, Ehime University, Ehime, Japan
| | - Isao Muraki
- Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
- Osaka Center for Cancer and Cardiovascular Disease Prevention, Osaka, Japan
| | - Mina Hayama-Terada
- Osaka Center for Cancer and Cardiovascular Disease Prevention, Osaka, Japan
| | - Yuji Shimizu
- Osaka Center for Cancer and Cardiovascular Disease Prevention, Osaka, Japan
| | - Tomoko Sankai
- Department of Community Health, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Takeo Okada
- Osaka Center for Cancer and Cardiovascular Disease Prevention, Osaka, Japan
| | - Masahiko Kiyama
- Osaka Center for Cancer and Cardiovascular Disease Prevention, Osaka, Japan
| | - Akihiko Kitamura
- Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
- Osaka Center for Cancer and Cardiovascular Disease Prevention, Osaka, Japan
- Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - Hiroyasu Iso
- Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - for the CIRCS Investigators
- Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
- Osaka Center for Cancer and Cardiovascular Disease Prevention, Osaka, Japan
- Department of Public Health, Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
- Department of Public Health, Dokkyo Medical University, Tochigi, Japan
- Department of Bioscience, Graduate School of Agriculture, Ehime University, Ehime, Japan
- Department of Community Health, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
- Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
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Abstract
Vitamin B12 is synthesized only by certain bacteria and archaeon, but not by plants. The synthesized vitamin B12 is transferred and accumulates in animal tissues, which can occur in certain plant and mushroom species through microbial interaction. In particular, the meat and milk of herbivorous ruminant animals (e.g. cattle and sheep) are good sources of vitamin B12 for humans. Ruminants acquire vitamin B12, which is considered an essential nutrient, through a symbiotic relationship with the bacteria present in their stomachs. In aquatic environments, most phytoplankton acquire vitamin B12 through a symbiotic relationship with bacteria, and they become food for larval fish and bivalves. Edible plants and mushrooms rarely contain a considerable amount of vitamin B12, mainly due to concomitant bacteria in soil and/or their aerial surfaces. Thus, humans acquire vitamin B12 formed by microbial interaction via mainly ruminants and fish (or shellfish) as food sources. In this review, up-to-date information on vitamin B12 sources and bioavailability are also discussed. Impact statement To prevent vitamin B12 (B12) deficiency in high-risk populations such as vegetarians and elderly subjects, it is necessary to identify foods that contain high levels of B12. B12 is synthesized by only certain bacteria and archaeon, but not by plants or animals. The synthesized B12 is transferred and accumulated in animal tissues, even in certain plant tissues via microbial interaction. Meats and milks of herbivorous ruminant animals are good sources of B12 for humans. Ruminants acquire the essential B12 through a symbiotic relationship with bacteria inside the body. Thus, we also depend on B12-producing bacteria located in ruminant stomachs. While edible plants and mushrooms rarely contain a considerable amount of B12, mainly due to concomitant bacteria in soil and/or their aerial surfaces. In this mini-review, we described up-to-date information on B12 sources and bioavailability with reference to the interaction of microbes as B12-producers.
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Affiliation(s)
- Fumio Watanabe
- Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University, Tottori 680-8553, Japan
| | - Tomohiro Bito
- Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University, Tottori 680-8553, Japan
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Asakura K, Haga M, Sasaki S. Relative validity and reproducibility of a brief-type self-administered diet history questionnaire for Japanese children aged 3-6 years: application of a questionnaire established for adults in preschool children. J Epidemiol 2015; 25:341-50. [PMID: 25843433 PMCID: PMC4411233 DOI: 10.2188/jea.je20140174] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Background Dietary intake assessment and subsequent dietary education or intervention in young children is important in decreasing prevalence of various noncontagious diseases in adulthood. Validation of diet assessment questionnaires for preschool children has just started in Japan. In this study, we rearranged the brief-type self-administered diet history questionnaire (BDHQ), a convenient diet assessment questionnaire that is widely used in a range of situations for adults, for use in children aged 3–6 years (BDHQ3y) and then validated the BDHQ3y in Japanese children. Methods The guardians of 61 children aged 3–4 years completed the BDHQ3y twice at an interval of 1 month, along with a 3-nonconsecutive-day diet record (DR) between the two administrations of the BDHQ3y. Dietary intakes for energy and 42 selected nutrients were estimated using both the DR and the BDHQ3y. Mean intakes estimated by the two methods were compared, and correlation coefficients were calculated. Reproducibility of the BDHQ3y estimates was investigated using intra-class correlation coefficients (ICCs). Results No significant differences in mean intakes estimated by the DR and the BDHQ3y were observed for one- to two-thirds of energy and examined nutrients. The median of Pearson correlation coefficients between intakes energy-adjusted by the residual method was 0.31 (interquartile range, 0.24 to 0.38). The median ICC was 0.72 (interquartile range, 0.63 to 0.76) for the crude nutrient intakes. Conclusions Although the BDHQ3y might be a good candidate for dietary intake assessment in Japanese preschool children, its validity is currently moderate to low. Shortcomings should be overcome by obtaining and utilizing more information about children’s dietary habits.
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Affiliation(s)
- Keiko Asakura
- Interfaculty Initiative in Information Studies, University of Tokyo; Department of Social and Preventive Epidemiology, School of Public Health, Tokyo, Japan
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Watanabe F, Yabuta Y, Tanioka Y, Bito T. Biologically active vitamin B12 compounds in foods for preventing deficiency among vegetarians and elderly subjects. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:6769-6775. [PMID: 23782218 DOI: 10.1021/jf401545z] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The usual dietary sources of vitamin B12 are animal-source based foods, including meat, milk, eggs, fish, and shellfish, although a few plant-based foods such as certain types of dried lavers (nori) and mushrooms contain substantial and considerable amounts of vitamin B12, respectively. Unexpectedly, detailed characterization of vitamin B12 compounds in foods reveals the presence of various corrinoids that are inactive in humans. The majority of edible blue-green algae (cyanobacteria) and certain edible shellfish predominately contain an inactive corrinoid known as pseudovitamin B12. Various factors affect the bioactivity of vitamin B12 in foods. For example, vitamin B12 is partially degraded and loses its biological activity during cooking and storage of foods. The intrinsic factor-mediated gastrointestinal absorption system in humans has evolved to selectively absorb active vitamin B12 from naturally occurring vitamin B12 compounds, including its degradation products and inactive corrinoids that are present in daily meal foods. The objective of this review is to present up-to-date information on various factors that can affect the bioactivity of vitamin B12 in foods. To prevent vitamin B12 deficiency in high-risk populations such as vegetarians and elderly subjects, it is necessary to identify plant-source foods that contain high levels of bioactive vitamin B12 and, in conjunction, to prepare the use of crystalline vitamin B12-fortified foods.
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Affiliation(s)
- Fumio Watanabe
- Division of Applied Bioresources Chemistry, The United Graduate School of Agricultural Sciences, Tottori University, Tottori 680-8553, Japan.
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Nishioka M, Kanosue F, Yabuta Y, Watanabe F. Loss of vitamin B(12) in fish (round herring) meats during various cooking treatments. J Nutr Sci Vitaminol (Tokyo) 2012; 57:432-6. [PMID: 22472286 DOI: 10.3177/jnsv.57.432] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The loss of vitamin B(12) in round herring meats during various cooking treatments was evaluated. Although amounts of vitamin B(12) were three times greater in the viscera (37.5 ± 10.6 µg/100 g fresh weight) than in the meats, about 73% of total vitamin B(12) found in the whole fish body (except for head and bones) were recovered in the meats (5.1 ± 1.0 µg of vitamin B(12)). The vitamin B(12) contents of the round herring's meats were significantly decreased up to ~62% during cooking by grilling, boiling, frying, steaming, and microwaving. There was, however, no loss of vitamin B(12) during vacuum-packed pouch cooking. Model experiment using hydroxocobalamin suggest that loss of vitamin B(12) is dependent on the degree of temperature and time used in conventional cooking, and is further affected by the concomitant ingredients of food. Retention of vitamin B(12) was not dependent on vacuum or temperature (or both) used in the vacuum-packed pouch cooking.
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Stankovic S, Jovic M, Stankovic AR, Katsikas L. Heavy Metals in Seafood Mussels. Risks for Human Health. ENVIRONMENTAL CHEMISTRY FOR A SUSTAINABLE WORLD 2012. [DOI: 10.1007/978-94-007-2442-6_9] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Ueta K, Takenaka S, Yabuta Y, Watanabe F. Broth from canned clams is suitable for use as an excellent source of free vitamin B12. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:12054-12058. [PMID: 22026331 DOI: 10.1021/jf2037104] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Vitamin B(12) was assayed and characterized in the broth of canned clams (boiled plain). The broth contained considerable amounts of vitamin B(12) (2.7-14.1 μg/100 g, 1.3-6.7 μg/can). HPLC and LC/ESI-MS/MS chromatograms demonstrated that the clam broth contained true vitamin B(12). Gel filtration experiments indicated that most (72%) of the vitamin B(12) found in the broth was recovered in free vitamin B(12) fractions. These results indicate that the clam broth would be suitable for use an excellent source of free vitamin B(12) for elderly persons with food-bound vitamin B(12) malabsorption.
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Affiliation(s)
- Kazumi Ueta
- Department of Science for Human Health, Shikoku University Junior College, Tokushima 771-1192, Japan
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Ueta K, Ishihara Y, Yabuta Y, Masuda S, Watanabe F. TLC-ANALYSIS OF A CORRINOID COMPOUND FROM JAPANESE ROCK-OYSTER “IWA-GAKI” (CRASSOSTREA NIPPONA). J LIQ CHROMATOGR R T 2011. [DOI: 10.1080/10826076.2011.571170] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Kazumi Ueta
- a Department of Science for Human Health , Shikoku University Junior College , Tokushima, Japan
- b The United Graduate School of Agricultural Sciences, Tottori University , Tottori, Japan
| | - Yukio Ishihara
- c Tottori Prefecture Fisheries Experimental Station , Sakai-Minato, Japan
| | - Yukinori Yabuta
- b The United Graduate School of Agricultural Sciences, Tottori University , Tottori, Japan
| | - Shinya Masuda
- c Tottori Prefecture Fisheries Experimental Station , Sakai-Minato, Japan
| | - Fumio Watanabe
- b The United Graduate School of Agricultural Sciences, Tottori University , Tottori, Japan
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ISHIHARA Y, IMAI E, TAKENAKA S, FUJITA T, YABUTA Y, MASUDA S, WATANABE F. Characterization of a Corrinoid Compound from Pacific Bluefin Tuna (Thunnus orientalis) Liver. FOOD SCIENCE AND TECHNOLOGY RESEARCH 2011. [DOI: 10.3136/fstr.17.589] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Kubota Y, Maruyama K, Sato S, Ishikawa Y, Shimamoto T, Inagawa M, Ohshima M, Murai S, Iso H. Reproducibility of 24-hour dietary recall for vitamin intakes by middle-aged Japanese men and women. J Nutr Health Aging 2010; 14:196-200. [PMID: 20191252 DOI: 10.1007/s12603-010-0048-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To examine the reproducibility of 24-hour dietary recall for estimating dietary vitamin intakes by middle-aged Japanese men and women. METHODS AND RESULTS The subjects were 132 men and 130 women aged 40-69 years, selected from participants in cardiovascular risk surveys conducted in 4 communities. The reproducibility of the 24-hour dietary recall was tested by comparing nutrient and food intake for two recalls conducted on the same season 1 year apart, designated as recalls 1 and 2. Differences in mean values between two recalls were tested using analysis of variance, and Spearman rank correlation coefficients for the two recalls were calculated for nutrient and food intakes. Mean values of energy and vitamins for both sexes were generally similar for the two recalls. The reproducibility of recall by men was high for vitamin B2, folate, pantothenic acid, and vitamin C and by women for vitamin B2, moderate by men for vitamins A, E, K, B1, B6 and niacin, and by women for vitamins A, E, K, B1, B6 and niacin, folate, pantothenic acid and vitamin C, and low by both men and women for vitamins D and B12. The reproducibility during 1985-1999 was generally lower than that of 1973-1984, but that for folate, pantothenic acid and vitamin C remained to be moderate in 1984-1999. CONCLUSIONS Although the reproducibility of 24-hour dietary recall varies among vitamins, moderate and sustained reproducibility was observed for folate, vitamin C and pantothenic acid.
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Affiliation(s)
- Y Kubota
- Public Health, Department of Social and Environmental Medicine, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
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Yoshino K, Nishide M, Inagawa M, Yokota K, Moriyama Y, Ikeda A, Noda H, Yamagishi K, Tanigawa T, Iso H. Validity of brief food frequency questionnaire for estimation of dietary intakes of folate, vitamins B6and B12, and their associations with plasma homocysteine concentrations. Int J Food Sci Nutr 2010; 61:61-7. [DOI: 10.3109/09637480903286363] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Nishioka M, Kanosue F, Miyamoto E, Yabuta Y, Watanabe F. TLC-Bioautogram Analysis of Vitamin B12 Compounds from Boiled and Dried Japanese Anchovy (Engraulis japonica) Products. J LIQ CHROMATOGR R T 2009. [DOI: 10.1080/10826070902854730] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Michiko Nishioka
- a Department of Health Science , Kochi Women's University , Kochi, Japan
- b The United Graduate School of Agricultural Sciences , Tottori University , Tottori, Japan
| | - Fuki Kanosue
- a Department of Health Science , Kochi Women's University , Kochi, Japan
| | - Emi Miyamoto
- c Department of Health and Nutrition , Nagasaki International University , Sasebo, Japan
| | - Yukinori Yabuta
- b The United Graduate School of Agricultural Sciences , Tottori University , Tottori, Japan
| | - Fumio Watanabe
- b The United Graduate School of Agricultural Sciences , Tottori University , Tottori, Japan
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Maruyama K, Kubota Y, Sato S, Ishikawa Y, Shimamoto T, Inagawa M, Ohshima M, Murai S, Iso H. The reproducibility of 24-h dietary recall for estimating mineral intakes and their food sources among middle-aged Japanese men and women. Int J Food Sci Nutr 2009; 60 Suppl 7:30-40. [DOI: 10.1080/09637480802199683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Nishio K, Goto Y, Kondo T, Ito S, Ishida Y, Kawai S, Naito M, Wakai K, Hamajima N. Serum folate and methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism adjusted for folate intake. J Epidemiol 2008; 18:125-31. [PMID: 18480590 PMCID: PMC4771607 DOI: 10.2188/jea.je2007417] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Serum folate concentration is lower in individuals with the methylenetetrahydrofolate reductase (MTHFR) 677TT genotype than in those with the MTHFR 677CC or 677CT genotypes. Since studies considering folate intake are limited, we examined the association between folate intake and serum folate levels, according to the genotype. METHODS The subjects comprised 170 Japanese persons (74 males and 96 females) aged 20-75 years who visited a clinic to test for Helicobacter pylori infection. Folate intake was estimated using a semiquantitative food frequency questionnaire, and serum folate was measured in the residual fasting blood samples of the subjects. MTHFR C677T was genotyped using polymerase chain reaction. RESULTS The geometric means of serum folate level were 6.19, 6.20, and 5.17 ng/mL among the 60 participants with the 677CC genotype, 90 participants with the 677CT genotype, and 20 participants with the 677TT genotype, respectively. No difference was noted in the mean folate intake estimated using the food-frequency questionnaire. Regression analysis showed that log(e)(serum folate) adjusted for age, sex, and log(e)(folate intake) was significantly lower among those with the 677TT genotype than among those with the 677CT or 677CC genotypes (p = 0.01). The adjusted reduction in serum folate was 20.2% (95% confidence interval, 5.4-32.6%) in the case of the 677TT genotype relative to the levels in the case of the 677CC/677CT genotypes. When folate intake was adjusted for total energy intake, using the residual method, the slope of the regression line for 677TT was smaller than those of the regression lines for 677CC and 677CT. CONCLUSION Individuals with the 677TT genotype may need to consume more folate to maintain serum folate levels similar to those found in individuals with the 677CC/677CT genotypes.
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Affiliation(s)
- Kazuko Nishio
- Department of Preventive Medicine/Biostatistics and Medical Decision Making, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan.
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