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Yamasaki Y, Nakamura K, Kashiwabara N, Chiba S, Akiyama H, Tsutsumi T. Development of a processing factor prediction model for pesticides in processed tomato foods using elastic net regularization. Food Chem 2024; 447:138943. [PMID: 38489881 DOI: 10.1016/j.foodchem.2024.138943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 02/09/2024] [Accepted: 03/02/2024] [Indexed: 03/17/2024]
Abstract
A novel regularized elastic net regression model was developed to predict processing factor (PF) for pesticide residues, which represents a change in the residue levels during food processing. The PF values for tomato juice, wet pomace and dry pomace in the evaluations and reports published by the Joint FAO/WHO Meeting on Pesticide Residues significantly correlated with the physicochemical properties of pesticides, and subsequently the correlation was observed in the present tomato processing study. The elastic net regression model predicted the PF values using the physicochemical properties as predictor variables for both training and test data within a 2-fold range for 80-100% of the pesticides tested in the tomato processing study while overcoming multicollinearity. These results suggest that the PF values are predictable at a certain degree of accuracy from the unique sets of physicochemical properties of pesticides using the developed model based on a processing study with representative pesticides.
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Affiliation(s)
- Yuki Yamasaki
- Division of Foods, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan
| | - Kosuke Nakamura
- Division of Foods, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan.
| | - Nao Kashiwabara
- Division of Foods, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan
| | - Shinji Chiba
- Division of Foods, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan
| | - Hiroshi Akiyama
- Division of Foods, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan; Department of Analytical Chemistry, School of Pharmaceutical Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-Ku, Tokyo 142-8501, Japan
| | - Tomoaki Tsutsumi
- Division of Foods, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan
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Ikeuchi S, Hirose S, Shimada K, Koyama A, Ishida S, Katayama N, Suzuki T, Tokairin A, Tsukamoto M, Tsue Y, Yamaguchi K, Osako H, Hiwatashi S, Chiba Y, Akiyama H, Hayashidani H, Hara-Kudo Y. Isolation of Shiga Toxin-Producing Escherichia coli from the Surfaces of Beef Carcasses in Slaughterhouses in Japan. J Food Prot 2024; 87:100263. [PMID: 38484844 DOI: 10.1016/j.jfp.2024.100263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 03/05/2024] [Accepted: 03/09/2024] [Indexed: 03/26/2024]
Abstract
Shiga toxin-producing E. coli (STEC) is an important foodborne pathogen worldwide. It is necessary to control and prevent STEC contamination on beef carcasses in slaughterhouses because STEC infection is associated with beef consumption. However, the frequencies of STEC contamination of beef carcasses in various slaughterhouses in Japan are not well known. Herein, we investigated the contamination of beef carcasses with STEC in slaughterhouses to assess the potential risks of STEC. In total, 524 gauze samples were collected from the surfaces of beef carcasses at 12 domestic slaughterhouses from November 2020 to February 2023. The samples were measured for aerobic plate counts and tested for pathogenic genes (stx and eae) and major O-serogroups (O26, O45, O103, O111, O121, O145, and O157) by real-time PCR screening. Subsequently, immunomagnetic separation (IMS) was performed on samples positive for stx, eae, and at least one of the seven O-serogroups of STEC. Isolation process without IMS was performed on samples positive for stx, including those subjected to IMS. STEC O157:H7 and stx-positive E. coli other than serotype O157:H7 were isolated from 0.6% and 4.6% of beef carcass surfaces, respectively. Although the STEC O157:H7 isolation rate was low and stx-positive E. coli other than serotype O157:H7 belonged to minor O-serogroups, the results mean a risk of foodborne illness. Furthermore, a moderate correlation was observed between aerobic plate counts and detection rates of stx-positive samples by real-time PCR screening. The STEC O157:H7 isolated facilities showed higher values on aerobic plate counts and detection rates of stx-positive samples than the mean values of total samples. Therefore, these results suggest that it is important to evaluate hygiene treatments against beef carcasses for the reduction of STEC contamination risk, particularly in facilities with high aerobic plate counts.
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Affiliation(s)
- Shunsuke Ikeuchi
- Division of Microbiology, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan; Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Shouhei Hirose
- Division of Microbiology, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan
| | - Kohei Shimada
- Section of Meat Inspection, Division of Food Hygiene, Bureau of Health and Safety, Department of Health and Welfare, Hokkaido Government, Kita 3-jo, Nishi 6-chome, Chuo-ku, Sapporo, Hokkaido 060-8588, Japan
| | - Ayako Koyama
- Higashimokoto Meat Inspection Center, 72-1, Chigusa, Higashimokoto, Ozora, Abashiri District, Hokkaido 099-3231, Japan
| | - Shoji Ishida
- Hokkaido Hayakita Meat Inspection Center, 695, Toasa, Abira-cho, Yufutsu District, Hokkaido 059-1433, Japan
| | - Naoto Katayama
- Tokushima Prefectural Meat Inspection Centre, 2-140-3 Fudohon-machi, Tokushima, Tokushima 770-0063, Japan
| | - Takehiko Suzuki
- Hokkaido Obihiro Meat Inspection Center, North 2, West 25, Obihiro, Hokkaido 080-2465, Japan
| | - Akiko Tokairin
- Towada Meat Inspection Center, 1-13, Sambongi Nozaki, Towada, Aomori 034-0001, Japan
| | - Mayumi Tsukamoto
- Gifu Prefectural Hida Meat Inspection Office, 17-1 Maehara-machi, Takayama, Gifu 506-0048, Japan
| | - Yuki Tsue
- Miyazaki Prefecture Tsuno Meat Inspection Center, 15530, Kawakita, Tsuno-cho, Koyu-gun, Miyazaki 889-1201, Japan
| | - Kenichi Yamaguchi
- Akita City Meat Hygiene Inspection Office, 2-6 Dosaka, Jinnai, Kawabe, Akita, Akita 019-2631, Japan
| | - Hideo Osako
- Kumamoto Prefectural Meat Inspection Office, 1341 Sozaki, Shichijyo-machi, Kikuchi, Kumamoto 861-1344, Japan
| | - Sachiko Hiwatashi
- Nagasaki Prefectural Isahaya Meat Inspection Station, 79-20 Saiwai-machi, Isahaya, Nagasaki 854-0022, Japan
| | - Yumi Chiba
- Division of Microbiology, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan
| | - Hiroshi Akiyama
- Department of Analytical Chemistry, School of Pharmacy and Pharmaceutical Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan
| | - Hideki Hayashidani
- Cooperative Division of Veterinary Sciences, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan; Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Yukiko Hara-Kudo
- Division of Microbiology, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan; Division of Animal Life Science, Institute of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan.
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3
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Tomiki M, Sakai M, Tanaka D, Hosoya M, Uchida K, Shibata H, Morita M, Ito R, Iwasaki Y, Akiyama H. A reliable enzyme-linked immunosorbent assay for the determining of sesame proteins in raw food ingredients and in processed foods. Food Chem X 2024; 21:101231. [PMID: 38420508 PMCID: PMC10900753 DOI: 10.1016/j.fochx.2024.101231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 02/09/2024] [Accepted: 02/14/2024] [Indexed: 03/02/2024] Open
Abstract
Sesame is a frequent cause of adverse food reactions in allergic patients. We developed a novel sandwich enzyme-linked immunosorbent assay (ELISA) using two monoclonal antibodies and a unique extraction buffer for the detection and quantification of sesame proteins in processed foods and in raw food ingredients to clarify the validity of sesame labeling and for precautionary allergen labeling. The developed sandwich ELISA method is highly specific for sesame proteins. The limit of detection (LOD) and limit of quantification (LOQ) are 0.013 µg/g and 0.025 µg/g, respectively. The recoveries for incurred food samples, such as dressing, breads, sauce and pudding, ranged from 67 % to 81 %, while the repeatability and reproducibility coefficients of variation were less than 4.7 % and 4.5 %, respectively. The developed method has applicability for food products and is a reliable tool for the detection of hidden sesame proteins in raw food ingredients and in processed foods.
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Affiliation(s)
- Masayoshi Tomiki
- Morinaga Institute of Biological Science, Inc., 2-1-1 Shimosueyoshi, Tsurumi-Ku, Yokohama 230 -8504, Japan
- Department of Analytical Chemistry, School of Pharmacy and Pharmaceutical Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-Ku, Tokyo 142-8501, Japan
| | - Masatoshi Sakai
- Morinaga Institute of Biological Science, Inc., 2-1-1 Shimosueyoshi, Tsurumi-Ku, Yokohama 230 -8504, Japan
| | - Daichi Tanaka
- Morinaga Institute of Biological Science, Inc., 2-1-1 Shimosueyoshi, Tsurumi-Ku, Yokohama 230 -8504, Japan
| | - Mai Hosoya
- Department of Analytical Chemistry, School of Pharmacy and Pharmaceutical Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-Ku, Tokyo 142-8501, Japan
| | - Kana Uchida
- Department of Analytical Chemistry, School of Pharmacy and Pharmaceutical Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-Ku, Tokyo 142-8501, Japan
| | - Haruki Shibata
- Morinaga Institute of Biological Science, Inc., 2-1-1 Shimosueyoshi, Tsurumi-Ku, Yokohama 230 -8504, Japan
| | - Minoru Morita
- Morinaga Institute of Biological Science, Inc., 2-1-1 Shimosueyoshi, Tsurumi-Ku, Yokohama 230 -8504, Japan
| | - Rie Ito
- Department of Analytical Chemistry, School of Pharmacy and Pharmaceutical Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-Ku, Tokyo 142-8501, Japan
| | - Yusuke Iwasaki
- Department of Analytical Chemistry, School of Pharmacy and Pharmaceutical Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-Ku, Tokyo 142-8501, Japan
| | - Hiroshi Akiyama
- Department of Analytical Chemistry, School of Pharmacy and Pharmaceutical Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-Ku, Tokyo 142-8501, Japan
- Division of Foods, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki 210-9501, Japan
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Koyama T, Nakamura K, Kiuchi T, Chiba S, Akiyama H, Yoshiike N. Development of a Reverse-Yield Factor Database Disaggregating Japanese Composite Foods into Raw Primary Commodity Ingredients Based on the Standard Tables of Food Composition in Japan. Foods 2024; 13:988. [PMID: 38611295 PMCID: PMC11011496 DOI: 10.3390/foods13070988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 03/04/2024] [Accepted: 03/19/2024] [Indexed: 04/14/2024] Open
Abstract
The reverse-yield factor (RF) database was developed for qualitatively and quantitatively disaggregating Japanese composite foods into raw primary commodity (RPC) ingredients. Representative equations for four types (dried, salted, fermented and mixed foods) were developed to calculate RFs using the food content and composition data for composite foods listed in the Standard Tables of Food Composition in Japan-2020-(STFCJ), published by the Ministry of Education, Culture, Sports, Science and Technology of Japan. Out of 1150 composite foods identified in the STFCJ, RFs for 54 dried, 41 salted, 40 fermented and 818 mixed foods were obtained. RFs for 197 mixed foods could not be calculated because these foods were produced from ingredients with no specified information and/or through complex processing. The content and composition of Japanese composite foods would be interpreted representatively by RFs in the developed database.
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Affiliation(s)
- Tatsuya Koyama
- Graduate School of Health Sciences, Aomori University of Health and Welfare, 58-1 Mase, Hamadate, Aomori 030-8505, Aomori, Japan; (T.K.); (N.Y.)
- Department of Food Science, Faculty of Human Life Sciences, Mimasaka University, 50 Kitazonocho, Tsuyama 708-8511, Okayama, Japan
| | - Kosuke Nakamura
- Division of Foods, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki 210-9501, Kanagawa, Japan; (T.K.); (S.C.); (H.A.)
| | - Takashi Kiuchi
- Division of Foods, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki 210-9501, Kanagawa, Japan; (T.K.); (S.C.); (H.A.)
| | - Shinji Chiba
- Division of Foods, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki 210-9501, Kanagawa, Japan; (T.K.); (S.C.); (H.A.)
| | - Hiroshi Akiyama
- Division of Foods, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki 210-9501, Kanagawa, Japan; (T.K.); (S.C.); (H.A.)
- Department of Analytical Chemistry, School of Pharmacy and Pharmaceutical Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan
| | - Nobuo Yoshiike
- Graduate School of Health Sciences, Aomori University of Health and Welfare, 58-1 Mase, Hamadate, Aomori 030-8505, Aomori, Japan; (T.K.); (N.Y.)
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5
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Sakai T, Kikuchi H, Nemoto S, Akiyama H, Taguchi T, Tsutsumi T. [Analytical Method for Melengestrol Acetate in Livestock Products Using LC-MS/MS]. Shokuhin Eiseigaku Zasshi 2024; 65:15-19. [PMID: 38432897 DOI: 10.3358/shokueishi.65.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
The present study verified that it is possible to analyze melengesterol acetate using the existing multi-residue method. Melengestrol acetate was extracted from livestock products using acidic acetonitrile acidified with acetic acid in the presence of n-hexane and anhydrous sodium sulfate. The crude extracts were cleaned up using an octadecylsilanized silica gel cartridge column. Separation by HPLC was performed using an octadecylsilanized silica gel column with linear gradient elution of 0.1 vol% formic acid and acetonitrile containing 0.1 vol% formic acid. For the determination of the analyte, tandem mass spectrometry with positive ion electrospray ionization was used. In recovery tests using four livestock products fortified with maximum residue limits levels of melengestrol acetate (0.001-0.02 mg/kg), the truenesses ranged from 82% to 100%, and the repeatabilities for the entire procedure ranged from 0.5 RSD% to 5.6 RSD%. In recovery tests using 11 livestock products fortified with 0.0005 mg/kg of melengestrol acetate, the truenesses ranged from 88% to 99%, and the repeatabilities ranged from 1.3 RSD% to 5.4 RSD%. The limit of quantification for melengestrol acetate in livestock products was 0.0005 mg/kg.
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Kawamura T, Radak Z, Tabata H, Akiyama H, Nakamura N, Kawakami R, Ito T, Usui C, Jokai M, Torma F, Kim H, Miyachi M, Torii S, Suzuki K, Ishii K, Sakamoto S, Oka K, Higuchi M, Muraoka I, McGreevy KM, Horvath S, Tanisawa K. Associations between cardiorespiratory fitness and lifestyle-related factors with DNA methylation-based ageing clocks in older men: WASEDA'S Health Study. Aging Cell 2024; 23:e13960. [PMID: 37584423 PMCID: PMC10776125 DOI: 10.1111/acel.13960] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 07/31/2023] [Accepted: 08/02/2023] [Indexed: 08/17/2023] Open
Abstract
DNA methylation-based age estimators (DNAm ageing clocks) are currently one of the most promising biomarkers for predicting biological age. However, the relationships between cardiorespiratory fitness (CRF), measured directly by expiratory gas analysis, and DNAm ageing clocks are largely unknown. We investigated the relationships between CRF and the age-adjusted value from the residuals of the regression of DNAm ageing clock to chronological age (DNAmAgeAcceleration: DNAmAgeAccel) and attempted to determine the relative contribution of CRF to DNAmAgeAccel in the presence of other lifestyle factors. DNA samples from 144 Japanese men aged 65-72 years were used to appraise first- (i.e., DNAmHorvath and DNAmHannum) and second- (i.e., DNAmPhenoAge, DNAmGrimAge, and DNAmFitAge) generation DNAm ageing clocks. Various surveys and measurements were conducted, including physical fitness, body composition, blood biochemical parameters, nutrient intake, smoking, alcohol consumption, disease status, sleep status, and chronotype. Both oxygen uptake at ventilatory threshold (VO2 /kg at VT) and peak oxygen uptake (VO2 /kg at Peak) showed a significant negative correlation with GrimAgeAccel, even after adjustments for chronological age and smoking and drinking status. Notably, VO2 /kg at VT and VO2 /kg at Peak above the reference value were also associated with delayed GrimAgeAccel. Multiple regression analysis showed that calf circumference, serum triglyceride, carbohydrate intake, and smoking status, rather than CRF, contributed more to GrimAgeAccel and FitAgeAccel. In conclusion, although the contribution of CRF to GrimAgeAccel and FitAgeAccel is relatively low compared to lifestyle-related factors such as smoking, the results suggest that the maintenance of CRF is associated with delayed biological ageing in older men.
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Affiliation(s)
- Takuji Kawamura
- Waseda Institute for Sport Sciences, Waseda UniversitySaitamaJapan
- Research Centre for Molecular Exercise ScienceHungarian University of Sports ScienceBudapestHungary
| | - Zsolt Radak
- Research Centre for Molecular Exercise ScienceHungarian University of Sports ScienceBudapestHungary
- Faculty of Sport SciencesWaseda UniversitySaitamaJapan
| | - Hiroki Tabata
- Waseda Institute for Sport Sciences, Waseda UniversitySaitamaJapan
- Sportology CentreJuntendo University Graduate School of MedicineTokyoJapan
| | - Hiroshi Akiyama
- Graduate School of Sport SciencesWaseda UniversitySaitamaJapan
| | | | - Ryoko Kawakami
- Waseda Institute for Sport Sciences, Waseda UniversitySaitamaJapan
- Physical Fitness Research Institute, Meiji Yasuda Life Foundation of Health and WelfareTokyoJapan
| | - Tomoko Ito
- Waseda Institute for Sport Sciences, Waseda UniversitySaitamaJapan
- Department of Food and NutritionTokyo Kasei UniversityTokyoJapan
| | - Chiyoko Usui
- Faculty of Sport SciencesWaseda UniversitySaitamaJapan
| | - Matyas Jokai
- Research Centre for Molecular Exercise ScienceHungarian University of Sports ScienceBudapestHungary
| | - Ferenc Torma
- Faculty of Health and Sport SciencesUniversity of TsukubaIbarakiJapan
| | - Hyeon‐Ki Kim
- Research Centre for Molecular Exercise ScienceHungarian University of Sports ScienceBudapestHungary
| | | | - Suguru Torii
- Faculty of Sport SciencesWaseda UniversitySaitamaJapan
| | | | - Kaori Ishii
- Faculty of Sport SciencesWaseda UniversitySaitamaJapan
| | - Shizuo Sakamoto
- Faculty of Sport SciencesWaseda UniversitySaitamaJapan
- Faculty of Sport ScienceSurugadai UniversitySaitamaJapan
| | - Koichiro Oka
- Faculty of Sport SciencesWaseda UniversitySaitamaJapan
| | | | - Isao Muraoka
- Faculty of Sport SciencesWaseda UniversitySaitamaJapan
| | - Kristen M. McGreevy
- Department of Biostatistics, Fielding School of Public HealthUniversity of California Los AngelesLos AngelesCaliforniaUSA
| | - Steve Horvath
- Department of Biostatistics, Fielding School of Public HealthUniversity of California Los AngelesLos AngelesCaliforniaUSA
- Department of Human Genetics, David Geffen School of MedicineUniversity of California Los AngelesLos AngelesCaliforniaUSA
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7
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Wakui N, Inoue K, Nunome M, Suzuki Y, Takagi A, Ito R, Iwasaki Y, Sugiura J, Akiyama H. [Implementation and Evaluation of Risk Communication Regarding Residual Pesticides]. Shokuhin Eiseigaku Zasshi 2024; 65:20-23. [PMID: 38432898 DOI: 10.3358/shokueishi.65.20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
In this study, a public seminar on risk communication methods was conducted to raise awareness and disseminate accurate knowledge about residual pesticides to consumers. Additionally, surveys on consumer awareness were conducted on the attendees before and after the seminar to evaluate its effectiveness. Responses were obtained from 84 participants. The paired t-test was used to analyze the changes in awareness before and after the seminar. The results showed significant improvements in "trust in the government" and "understanding of residual pesticides." Furthermore, step-wise multiple regression analysis was performed to explore the factors influencing satisfaction with the risk communication seminar, and the item "understanding of the safety of residual pesticides in food" was extracted. Understanding food safety is a crucial concern in daily life for consumers. To enable consumers to have an accurate understanding of food risks and make appropriate judgments, it is essential to continue implementing risk communication and conveying information about food safety and security in the future.
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Affiliation(s)
- Nobuyuki Wakui
- School of Pharmacy and Pharmaceutical Sciences, Hoshi University
| | | | | | | | - Aya Takagi
- Graduate School of Environmental and Information Sciences, Yokohama National University
| | - Rie Ito
- School of Pharmacy and Pharmaceutical Sciences, Hoshi University
| | - Yusuke Iwasaki
- School of Pharmacy and Pharmaceutical Sciences, Hoshi University
| | | | - Hiroshi Akiyama
- School of Pharmacy and Pharmaceutical Sciences, Hoshi University
- Division of Foods, National Institute of Health Sciences
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8
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Guppy F, Muniz-Pardos B, Angeloudis K, Grivas GV, Pitsiladis A, Bundy R, Zelenkova I, Tanisawa K, Akiyama H, Keramitsoglou I, Miller M, Knopp M, Schweizer F, Luckfiel T, Ruiz D, Racinais S, Pitsiladis Y. Technology Innovation and Guardrails in Elite Sport: The Future is Now. Sports Med 2023; 53:97-113. [PMID: 37787844 PMCID: PMC10721698 DOI: 10.1007/s40279-023-01913-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/15/2023] [Indexed: 10/04/2023]
Abstract
A growing number of companies are developing or using wearable sensor technologies that can monitor, analyse and transmit data from humans in real time that can be used by the sporting, biomedical and media industries. To explore this phenomenon, we describe and review two high-profile sporting events where innovations in wearable technologies were trialled: the Tokyo 2020 Summer Olympic Games (Tokyo 2020, Japan) and the 2022 adidas Road to Records (Germany). These two major sporting events were the first time academic and industry partners came together to implement real-time wearable solutions during major competition, to protect the health of athletes competing in hot and humid environments, as well as to better understand how these metrics can be used moving forwards. Despite the undoubted benefits of such wearables, there are well-founded concerns regarding their use including: (1) limited evidence quantifying the potential beneficial effects of analysing specific parameters, (2) the quality of hardware and provided data, (3) information overload, (4) data security and (5) exaggerated marketing claims. Employment and sporting rules and regulations also need to evolve to facilitate the use of wearable devices. There is also the potential to obtain real-time data that will oblige medical personnel to make crucial decisions around whether their athletes should continue competing or withdraw for health reasons. To protect athletes, the urgent need is to overcome these ethical/data protection concerns and develop wearable technologies that are backed by quality science. The fields of sport and exercise science and medicine provide an excellent platform to understand the impact of wearable sensors on performance, wellness, health, and disease.
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Affiliation(s)
- Fergus Guppy
- Institute of Life and Earth Sciences, School of Energy, Geoscience, Infrastructure and Society, Heriot-Watt University, Edinburgh, UK
| | - Borja Muniz-Pardos
- GENUD (Growth, Exercise, Nutrition and Development) Research Group, Faculty of Health and Sport Sciences, University of Zaragoza, Saragossa, Spain
| | - Konstantinos Angeloudis
- Institute of Life and Earth Sciences, School of Energy, Geoscience, Infrastructure and Society, Heriot-Watt University, Edinburgh, UK
| | - Gerasimos V Grivas
- Physical Education and Sports, Division of Humanities and Political Sciences, Hellenic Naval Academy, Piraeus, Athens, Greece
| | | | | | - Irina Zelenkova
- GENUD (Growth, Exercise, Nutrition and Development) Research Group, Faculty of Health and Sport Sciences, University of Zaragoza, Saragossa, Spain
| | - Kumpei Tanisawa
- Faculty of Sport Sciences, Waseda University, Tokorozawa, Japan
| | - Hiroshi Akiyama
- Graduate School of Sport Sciences, Waseda University, Tokorozawa, Japan
| | | | - Mike Miller
- Human Telemetrics, London, UK
- World Olympians Association, Lausanne, Switzerland
| | - Melanie Knopp
- adidas Innovation, adidas AG, Herzogenaurach, Germany
| | | | | | - Daniel Ruiz
- adidas Innovation, adidas AG, Herzogenaurach, Germany
| | - Sebastien Racinais
- Environmental Stress Unit, CREPS Montpellier - Font Romeu, Montpellier, France
| | - Yannis Pitsiladis
- Human Telemetrics, London, UK.
- Department of Sport, Physical Education and Health, Hong Kong Baptist University, Hong Kong SAR, Hong Kong.
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9
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Saito K, Ito R, Sekiya C, Akiyama H. Identification of animal species by nucleic acid chromatography of hair samples and investigation of its applicability to human biological samples. Forensic Sci Int 2023; 351:111811. [PMID: 37660638 DOI: 10.1016/j.forsciint.2023.111811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 08/21/2023] [Indexed: 09/05/2023]
Abstract
GeneFields®-Hair is a simple analysis kit that uses nucleic acid chromatography and polymerase chain reaction (PCR) to identify animal species of hair-like food contaminants. In this study, we evaluated GeneFields®-Hair as a simple and rapid method for identifying animal species from hair-like materials collected in forensic science, such as at crime scenes. The use of this kit with other human biological materials (whole blood, head dandruff, nails, saliva, oral mucosa, sebum, and urine) was also investigated. Animal body hair samples were pretreated by grinding in a buffer solution, centrifuged, and the supernatant was used for PCR. Nucleic acid chromatography of the PCR products allowed the identification of the animal species by the presence or absence of coloration on the decision line. For human biological materials, nucleic acid chromatography was performed after the appropriate pretreatment like body hair material. The determination of some animal species was difficult, even if they had a dedicated DNA Strip determination line. Furthermore, animals from the same family but different genera were sometimes detected on the same determination line. All the human biological samples were correctly identified. Smartphone photographs of the coloration of the judgment line were processed using the ImageJ software for quantitative determination.
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Affiliation(s)
- Koichi Saito
- Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Hoshi University, 2-4-41, Ebara, Shinagawa-ku, Tokyo 142-8501, Japan.
| | - Rie Ito
- Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Hoshi University, 2-4-41, Ebara, Shinagawa-ku, Tokyo 142-8501, Japan
| | - Chiharu Sekiya
- Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Hoshi University, 2-4-41, Ebara, Shinagawa-ku, Tokyo 142-8501, Japan
| | - Hiroshi Akiyama
- Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Hoshi University, 2-4-41, Ebara, Shinagawa-ku, Tokyo 142-8501, Japan
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Akiyama H, Watanabe D, Miyachi M. Estimated standard values of aerobic capacity according to sex and age in a Japanese population: A scoping review. PLoS One 2023; 18:e0286936. [PMID: 37713405 PMCID: PMC10503723 DOI: 10.1371/journal.pone.0286936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Accepted: 09/04/2023] [Indexed: 09/17/2023] Open
Abstract
Aerobic capacity is a fitness measure reflecting the ability to sustain whole-body physical activity as fast and long as possible. Identifying the distribution of aerobic capacity in a population may help estimate their health status. This study aimed to estimate standard values of aerobic capacity (peak oxygen uptake [Formula: see text] and anaerobic threshold [AT]/kg) for the Japanese population stratified by sex and age using a meta-analysis. Moreover, the comparison of the estimated standard values of the Japanese with those of other populations was performed as a supplementary analysis. We systematically searched original articles on aerobic capacity in the Japanese population using PubMed, Ichushi-Web, and Google Scholar. We meta-analysed [Formula: see text] (total: 78,714, men: 54,614, women: 24,100) and AT (total: 4,042, men: 1,961, women: 2,081) data of healthy Japanese from 21 articles by sex and age. We also searched, collected and meta-analysed data from other populations. Means and 95% confidence intervals were calculated. The estimated standard values of [Formula: see text] (mL/kg/min) for Japanese men and women aged 4-9, 10-19, 20-29, 30-39, 40-49, 50-59, 60-69, and 70-79 years were 47.6, 51.2, 43.2, 37.2, 34.5, 31.7, 28.6, and 26.3, and 42.0, 43.2, 33.6, 30.6, 27.4, 25.6, 23.4, and 23.1, respectively. The AT/kg (mL/kg/min) for Japanese men and women aged 20-29, 30-39, 40-49, 50-59, 60-69, and 70-79 years were 21.1, 18.3, 16.8, 15.9, 15.8, and 15.2, and 17.4, 17.0, 15.7, 15.0, 14.5, and 14.2, respectively. Herein, we presented the estimated standard values of aerobic capacity according to sex and age in a Japanese population. In conclusion, aerobic capacity declines with ageing after 20-29 years of age. Additionally, aerobic capacity is lower in the Japanese population than in other populations across a wide range of age groups. Standard value estimation by meta-analysis can be conducted in any country or region and for public health purposes.
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Affiliation(s)
- Hiroshi Akiyama
- Graduate School of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan
| | - Daiki Watanabe
- Faculty of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan
| | - Motohiko Miyachi
- Faculty of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan
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11
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Nakamura N, Akiyama H, Nishimura M, Zhu K, Suzuki K, Higuchi M, Tanisawa K. Acute social jetlag augments morning blood pressure surge: a randomized crossover trial. Hypertens Res 2023; 46:2179-2191. [PMID: 37452155 PMCID: PMC10477072 DOI: 10.1038/s41440-023-01360-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 06/22/2023] [Accepted: 06/23/2023] [Indexed: 07/18/2023]
Abstract
Although social jetlag (SJL) is generally considered a chronic condition, even acute SJL may have unfavorable effects on the cardiovascular system. We focused on the acute effects of SJL on morning blood pressure (BP) surge. This randomized crossover trial recruited 20 healthy men. In the SJL trial, participants delayed their bedtime by three hours on Friday and Saturday nights. Participants in the control (CON) trial implemented the same sleep-wake timing as on weekdays. Pre- and post-intervention measurements were performed to evaluate resting cardiovascular variables on Friday and Monday mornings, respectively. The ambulatory BP was automatically measured during the sleep and awake periods for 2 h after the participant woke up at night before pre- and post-intervention measurements. SJL (average mid-sleep time on weekends - average mid-sleep time on weekdays) occurred only in the SJL trial (SJL: 181 ± 24 min vs. CON: 8 ± 47 min). Carotid-femoral pulse wave velocity (cfPWV) and morning BP surge on Monday in the SJL trial were significantly higher than those on Friday in the SJL trial (cfPWV: P = 0.001, morning BP surge: P < 0.001), and those on Monday in the CON trial (cfPWV: P = 0.007; morning BP surge: P < 0.001). Furthermore, a significant positive correlation was found between ΔcfPWV and Δmorning BP surge (R = 0.587, P = 0.004). These results suggest that even acute SJL augments morning BP surge. This phenomenon may correspond to increased central arterial stiffness.State the details of Clinical Trials: Name: Effect of acute social jetlag on risk factors of lifestyle-related diseases. URL: https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000053204 . Unique identifier: UMIN000046639. Registration date: 17/01/2022.
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Affiliation(s)
- Nobuhiro Nakamura
- Faculty of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan
| | - Hiroshi Akiyama
- Graduate School of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan
| | - Mei Nishimura
- School of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan
| | - Kejing Zhu
- Graduate School of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan
| | - Katsuhiko Suzuki
- Faculty of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan
| | - Mitsuru Higuchi
- Faculty of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan
| | - Kumpei Tanisawa
- Faculty of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan.
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Iwasaki Y, Yamada S, Sakuma S, Kanba S, Youda C, Ono M, Ito R, Kamei J, Akiyama H. Optimization of QuEChERS Extraction for Determination of Carotenoids, Polyphenols, and Sterols in Orange Juice Using Design of Experiments and Response Surface Methodology. Foods 2023; 12:3064. [PMID: 37628062 PMCID: PMC10453318 DOI: 10.3390/foods12163064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/08/2023] [Accepted: 08/14/2023] [Indexed: 08/27/2023] Open
Abstract
Several compounds with different physical properties are present in foods, biological components, and environmental samples, and there are cases in which these must be analyzed simultaneously. However, it is difficult to extract compounds with different physical properties from the same sample using a single method. In the present study, we examined the optimal conditions for the QuEChERS extraction of several kinds of compounds from orange juice using design of experiments (DoE) and response surface methodology (RSM) to determine the optimal ratio of organic solvent to sodium chloride. We determined the optimal extraction conditions, which were within the design space, using 100% tetrahydrofuran (THF) as the extraction organic solvent and NaCl:MgSO4 = 75:25 as the salt. The developed LC/MS/MS method using QuEChERS extraction achieved specific detection and precise quantification. Finally, we measured the polyphenols, sterols, and carotenoids in citrus juice using the optimized QuEChERS extraction method before LC/MS/MS analysis. Most of the analytes were quantifiable in orange juice. The optimized method achieved ease of operation, the extraction of analytes from food samples in a short time (within 30 min), minimization of analytical residues, and reliability. The DoE and RSM approach may contribute to better optimization of the extraction conditions for the lowest number of experiments.
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Affiliation(s)
- Yusuke Iwasaki
- Department of Analytical Chemistry, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Tokyo 142-8501, Japan
- Laboratory of Biopharmaceutics and Analytical Science, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Tokyo 142-8501, Japan
| | - Saki Yamada
- Laboratory of Biopharmaceutics and Analytical Science, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Tokyo 142-8501, Japan
| | - Shinya Sakuma
- Laboratory of Biopharmaceutics and Analytical Science, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Tokyo 142-8501, Japan
| | - Shunpei Kanba
- Department of Analytical Chemistry, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Tokyo 142-8501, Japan
- Laboratory of Biopharmaceutics and Analytical Science, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Tokyo 142-8501, Japan
| | - Chinatsu Youda
- Department of Analytical Chemistry, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Tokyo 142-8501, Japan
- Laboratory of Biopharmaceutics and Analytical Science, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Tokyo 142-8501, Japan
| | - Mizuki Ono
- Laboratory of Biopharmaceutics and Analytical Science, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Tokyo 142-8501, Japan
| | - Rie Ito
- Department of Analytical Chemistry, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Tokyo 142-8501, Japan
| | - Junzo Kamei
- Laboratory of Biopharmaceutics and Analytical Science, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Tokyo 142-8501, Japan
- Department of Biomolecular Pharmacology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Tokyo 142-8501, Japan
- Juntendo Advanced Research Institute for Health Science, Juntendo University, Tokyo 113-8421, Japan
| | - Hiroshi Akiyama
- Department of Analytical Chemistry, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Tokyo 142-8501, Japan
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Ito R, Takemura C, Akiyama H, Saito K. Elucidation of Degradation Behavior of Hydroxy Group-Containing Benzodiazepines in Artificial Gastric Juice: Study on Degradability of Drugs in Stomach (III). Chem Pharm Bull (Tokyo) 2023; 71:312-317. [PMID: 37005255 DOI: 10.1248/cpb.c22-00911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
Abstract
The degradation behavior of three benzodiazepines (BZPs)-lormetazepam (LMZ), lorazepam, and oxazepam-with hydroxy groups on the diazepine ring in artificial gastric juice and the effect of storage pH conditions on drug degradability were monitored using an LC/photodiode array detector (PDA) to estimate their pharmacokinetics in the stomach. Although the three BZPs degraded in artificial gastric juice, none could be restored, despite increasing the storage pH, implying that the degradation reaction was irreversible. As for LMZ, we discussed the physicochemical parameters, such as the activation energy and activation entropy involved in the degradation reaction as well as the reaction kinetics; one of the degradation products was isolated and purified for structural analysis. In the LMZ degradation experiment, peaks corresponding to degradation products, (A) and (B), were detected through the LC/PDA measurements. Regarding the degradation behavior, we hypothesized that LMZ was degraded into (B) via (A), where (A) was an intermediate and (B) was the final product. Although the isolation of degradation product (A) was challenging, degradation product (B) could be isolated and was confirmed to be "methanone, [5-chloro-2-(methylamino)phenyl](2-chlorophenyl)-" based on structure determination using various instrumental analyses. The compound exhibited axis asymmetry as determined using single-crystal X-ray structure analysis. Because the formation of degradation product (B) was irreversible, it would be prudent to target the final degradation product (B) and LMZ for identification when detecting LMZ in human stomach contents, such as during forensic dissection.
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Affiliation(s)
- Rie Ito
- Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Hoshi University
| | - Chisa Takemura
- Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Hoshi University
| | - Hiroshi Akiyama
- Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Hoshi University
| | - Koichi Saito
- Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Hoshi University
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14
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Suzuki Y, Kondo M, Kitayama I, Akiyama H, Tsutsumi T. [Estimation of the Distribution of Dietary Exposure to Lead Using Two-Dimensional Monte Carlo Simulation: An Attempt to Apply to Total Diet Samples]. Shokuhin Eiseigaku Zasshi 2023; 64:1-12. [PMID: 36858586 DOI: 10.3358/shokueishi.64.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
The average dietary exposure to lead (Pb) in male and female Japanese individuals >1 year of age was estimated using 280 total diet samples representing 14 food groups from 10 areas over a two-year period. A probabilistic exposure estimation was performed using a two-dimensional Monte Carlo simulation (2D-MCS) with a Bayesian estimation that consided the uncertainty of the estimation process. The Bayesian estimation was performed using the likelihood function with cumulative distribution function between the lower and upper boundary values for no-detected values. The median dietary exposure to Pb was estimated as 5.82 μg/person/day. The 90% interval was 2.51-16.9 μg/person/day. Comparison with previously reported Pb exposure values indicates that the estimation of Pb exposure distribution using total diet samples is reasonable. The contribution to Pb exposure was highest in the order of food group 8 (light-colored vegetables, mushrooms, and seaweeds: 20.0±16.1%)>food group 1 (rice and rice products: 12.3±19.0%)>food group 10 (fish and shellfish: 10.5±13.9%). Owing to the high uncertainties of contribution ratios, it was not possible to identify dominant food groups contributing to Pb exposure. However, it was evident that the uncertainty of the estimation of Pb exposure was influenced by the uncertainty of Pb concentration than the uncertainty of food consumption rate. In particular, the effect of uncertainty from the Pb concentration of the food group 1 was 68.2%. When the margin of exposures were calculated, the estimated probabilities that a value would be <1 were 14.5% for developmental neurotoxicity to children (1-6 years old), 0.13% for blood pressure and 0.93% for kidney disease in Japanese individuals ≥1 year of age. The findings suggest that the health risk due to dietary Pb exposure is small but not negligible.
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Affiliation(s)
| | | | | | - Hiroshi Akiyama
- National Institute of Health Sciences.,School of Pharmaceutical Sciences, Hoshi University
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15
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Kikuchi H, Sakai T, Okura T, Nemoto S, Akiyama H, Taguchi T, Tsutsumi T. [An LC-MS/MS Analytical Method for Moenomycin A in Livestock Products]. Shokuhin Eiseigaku Zasshi 2023; 64:61-68. [PMID: 37211387 DOI: 10.3358/shokueishi.64.61] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A simple and sensitive method for the determination of moenomycin A residues in livestock products using LC-MS/MS was developed. Moenomycin A, a residual definition of flavophospholipol, was extracted from samples with a mixture of ammonium hydroxide and methanol (1 : 9, v/v) preheated at 50℃. The crude extracted solutions were evaporated and purified by liquid-liquid partitioning between a mixture of ammonium hydroxide, methanol and water (1 : 60 : 40, v/v/v) and ethyl acetate. The alkaline layer was taken, and cleaned up using a strong anion exchange (InertSep SAX) solid phase extraction cartridge. The LC separation was performed on an Inertsil C8 column with liner gradient elution using 0.3 vol% formic acid and acetonitrile containing 0.3 vol% formic acid. Moenomycin A was detected using tandem mass spectrometry with negative ion electrospray ionization. Recovery tests were conducted using three porcine samples (muscle, fat and liver) and chicken eggs. Samples were spiked with moenomycin A at 0.01 mg/kg and at the Japanese Maximum Residue Limits (MRLs) established for each sample. The trueness ranged from 79 to 93% and precision ranged from 0.5 to 2.8%. The limit of quantification (S/N≥10) of the developed method is 0.01 mg/kg. The developed method would thus be very useful for regulatory monitoring of flavophospholipol in livestock products.
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Affiliation(s)
| | | | | | | | - Hiroshi Akiyama
- National Institute of Health Sciences
- Graduate school of Pharmacy, Hoshi University
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16
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Akiyama H, Ishibashi A, Kai T, Kikuchi A, Taguchi T, Fukiwake T, Tsutsumi T, Asakura H, Ito R. Determination of Cyanide and Cyanoglycosides in Sweetened Bean Paste by HPLC with Fluorescence Detection. Biol Pharm Bull 2023; 46:1024-1026. [PMID: 37394634 DOI: 10.1248/bpb.b23-00118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
It is necessary to evaluate the efficiency of reduction for cyanide and cyanoglycosides during the manufacturing process from raw material beans to sweetened bean paste in a food hygiene control system from the viewpoint of food safety. Analytical methods for cyanide and cyanoglycoside determination in sweetened bean paste by HPLC with fluorescence detection were developed. In analysis of collection time of free cyanide in the free cyanide assay, the recovery was improved by extending the collection time, the recovery rate was >80% by 2 h. The accuracy, repeatability and intra-laboratory precision of the free cyanide assay were 82.3, 2.0, and 2.4%, respectively. The method for cyanoglycoside analysis was evaluated by 5 repeated spiked recovery experiments at a concentration of 10 ppm. The accuracy, repeatability and intra-laboratory precision of the cyanoglycoside method were 82.2, 1.9, and 3.4%, respectively. These analytical methods will enable the analysis of cyanide and cyanoglycosides in sweetened bean paste without using steam distillation method in the pretreatment.
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Affiliation(s)
- Hiroshi Akiyama
- School of Pharmaceutical Sciences, Hoshi University
- National Institute of Health Sciences
| | | | - Tsuyoshi Kai
- School of Pharmaceutical Sciences, Hoshi University
| | | | | | - Tomohide Fukiwake
- School of Pharmaceutical Sciences, Hoshi University
- Chiba Prefectural Institute of Public Health
| | | | | | - Rie Ito
- School of Pharmaceutical Sciences, Hoshi University
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17
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Yamasaki Y, Suzuki Y, Kitayama I, Nunome M, Kondo M, Sakai T, Nemoto S, Akiyama H, Tsutsumi T. [Development of Analytical Method and Surveillance ofGibberellic Acid in Banana, Cherry, and Kiwi Fruit]. Shokuhin Eiseigaku Zasshi 2023; 64:123-129. [PMID: 37673601 DOI: 10.3358/shokueishi.64.123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/08/2023]
Abstract
Gibberellic acid (GA3) is commonly used as a plant growth regulator in many food crops owing to its essential signaling functions during plant growth and development. In Japan, a threshold for administrative action for GA3 content of 0.3 mg/kg applies in produce in which maximum residue limits have not been established. Although the threshold is based on previous studies, the GA3 concentrations in individual foods are still unknown. Thus, we surveyed the concentrations of GA3 in banana, cherry, and kiwi fruit on the Japanese market. We developed and validated a method for the analysis of GA3 using solid-phase extraction and LC-MS/MS in accordance with accepted criteria of trueness, repeatability, and selectivity. The limits of detection and of quantification were determined as 0.005 and 0.05 mg/kg, respectively, in all fruits. Concentrations of GA3 did not exceed 0.3 mg/kg regardless of ripeness, suggesting the reasonability of the current regulation of GA3 in banana, cherry, and kiwi fruit. These findings can support prompt administrative action on these fruits, contributing to the regulation of GA3 in Japan.
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Fukiwake T, Oosawa S, Yoshino H, Shinozuka T, Nishimura M, Ito R, Akiyama H. Simultaneous detection of sibutramine and phenolphthalein in a diet jelly health food product that caused health problems. ANAL SCI 2022; 39:455-461. [PMID: 36472786 DOI: 10.1007/s44211-022-00217-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 11/08/2022] [Indexed: 12/12/2022]
Abstract
The Public Health Center in Chiba Prefecture, Japan, received a consultation from a resident of Chiba Prefecture who consumed a diet jelly health food product and experienced health problems. To investigate the cause of the health problems, we examined the two food products for the presence of pharmaceutical ingredients. A screening analysis using ultra-high-performance liquid chromatography with a photodiode array detector (UPLC-PDA) indicated the presence of sibutramine and phenolphthalein in the food product. Analysis using an ultra-high-performance liquid chromatography-quadrupole-Kingdon trap mass spectrometer (UHPLC-Q-Kingdon trap MS) confirmed the presence of sibutramine and phenolphthalein. Quantitative analysis using UPLC-PDA showed that sibutramine and phenolphthalein were present at 15 and 16 mg/bag and 2.4 and 2.6 mg/bag, respectively. According to the drug insert for sibutramine capsules in the United States, the recommended medicinal dose of sibutramine should not exceed 15 mg/day, and the amount ingested in the present case exceeded that value. The present study results indicated that ingestion of the jelly health food product may cause health problems.
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Affiliation(s)
- Tomohide Fukiwake
- Chiba Prefectural Institute of Public Health, 666-2, Nitona-Cho, Chuo-Ku, Chiba, 260-8715, Japan
- Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-Ku, Tokyo, 142-8501, Japan
| | - Sachiyo Oosawa
- Chiba Prefectural Institute of Public Health, 666-2, Nitona-Cho, Chuo-Ku, Chiba, 260-8715, Japan
| | - Hiroki Yoshino
- Chiba Prefectural Institute of Public Health, 666-2, Nitona-Cho, Chuo-Ku, Chiba, 260-8715, Japan
| | - Tatsuya Shinozuka
- Chiba Prefectural Institute of Public Health, 666-2, Nitona-Cho, Chuo-Ku, Chiba, 260-8715, Japan
| | - Maki Nishimura
- Chiba Prefectural Institute of Public Health, 666-2, Nitona-Cho, Chuo-Ku, Chiba, 260-8715, Japan
| | - Rie Ito
- Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-Ku, Tokyo, 142-8501, Japan
| | - Hiroshi Akiyama
- Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-Ku, Tokyo, 142-8501, Japan.
- National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki-Ku, Kawasaki, Kanagawa, 210-9501, Japan.
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Tamura M, Suzuki Y, Akiyama H, Hamada-Sato N. Evaluation of the effect of Lactiplantibacillus pentosus SN001 fermentation on arsenic accumulation and antihypertensive effect of Sargassum horneri in vivo. Naunyn Schmiedebergs Arch Pharmacol 2022; 395:1549-1556. [PMID: 36085426 DOI: 10.1007/s00210-022-02288-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 09/02/2022] [Indexed: 11/26/2022]
Abstract
Sargassum horneri contains water-soluble polysaccharides, which have antihypertensive effects, and arsenic, which is harmful to the human body. Boiling and other treatments are effective in removing arsenic; however, water-soluble polysaccharides are lost during processing. Therefore, a method to remove arsenic and further increase its antihypertensive effect is required. To this end, we investigated fermentation with Lactiplantibacillus pentosus SN001 in this study. Boiled and fermented S. horneri were administered to spontaneously hypertensive rats (SHR), and blood pressure and arsenic accumulation in organs were observed to simultaneously examine the effects of fermentation on hypertension and arsenic accumulation. The ACE (angiotensin-converting enzyme) inhibition rate, an indicator of antihypertensive effects, showed a maximum at 4 days of fermentation. Consecutive dosing studies using S. horneri, boiled S. horneri, and fermented boiled S. horneri in SHR were conducted. Although the boiled group showed high blood pressure values, the fermented boiled group showed lower blood pressure values than the boiled cohort. The amount of arsenic accumulated in the liver, kidney, and spleen of rats was significantly lower in the boiled and fermented boiled groups than that in the S. horneri group. This confirmed the arsenic removal effect of boiling pretreatment and the in vivo safety of fermented boiled S. horneri. These results suggest that fermentation of arsenic-free S. horneri with L. pentosus SN001 can enhance its antihypertensive effect in vivo. This is the first study to simultaneously examine the antihypertensive effect of fermentation of S. horneri and its effect on the arsenic accumulation in vivo.
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Affiliation(s)
- Momoko Tamura
- Course of Safety Management in Food Supply Chain, Tokyo University of Marine Science and Technology, Konan-4, Minato-ku, Tokyo, 108-8477, Japan
| | - Yoshinari Suzuki
- Division of Foods, National Institute of Health Sciences, Tonomachi 3-25-26, Kawasaki-ku, Kanagawa, 210-9501, Japan
| | - Hiroshi Akiyama
- Faculty of Pharmaceutical Sciences, Hoshi University, 2-4-41, Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Naoko Hamada-Sato
- Course of Safety Management in Food Supply Chain, Tokyo University of Marine Science and Technology, Konan-4, Minato-ku, Tokyo, 108-8477, Japan.
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology, Konan-4, Minato-ku, Tokyo, 108-8477, Japan.
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Nabeshi H, Hachisuka A, Matsuda R, Teshima R, Akiyama H, Tsutsumi T. Estimation of dietary intake of 90Sr in Japan after the Fukushima Daiichi Nuclear Power Plant accident: market basket study, 2013-2018. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2022; 39:1974-1986. [PMID: 36252185 DOI: 10.1080/19440049.2022.2129099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Radionuclide contamination in foods has been a public concern in Japan after the Fukushima Daiichi Nuclear Power Plant (FDNPP) accident. To estimate time and regional trends of daily intake and annual committed effective dose of strontium-90 (90Sr) after the accident, we analysed Market basket samples using a low background 2π gas-flow counter. Samples were collected from six regions, once a year from 2013 to 2018. There appeared to be little variation in estimated daily intake and annual committed effective dose of 90Sr across the time periods and regions. The estimated maximum annual committed effective dose of 90Sr was 0.00076 mSv/year, a value sufficiently lower than the intervention exemption level, 1 mSv/year, in foods in Japan. There was no noticeable difference between the range of estimated daily intake of 90Sr in this study compared with daily intake measured before the FDNPP accident. These results suggested that no obvious increase in dietary intake of 90Sr was observed after the FDNPP accident, and that the effects on commercial foods from 90Sr due to the FDNPP accident were negligible.
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Affiliation(s)
- Hiromi Nabeshi
- Division of Foods, National Institute of Health Sciences, Kawasaki, Japan
| | - Akiko Hachisuka
- Division of Biochemistry, National Institute of Health Sciences, Kawasaki, Japan
| | - Rieko Matsuda
- Division of Foods, National Institute of Health Sciences, Kawasaki, Japan
| | - Reiko Teshima
- Division of Foods, National Institute of Health Sciences, Kawasaki, Japan.,Faculty of Veterinary Medicine, Okayama University of Science, Imabari, Japan
| | - Hiroshi Akiyama
- Division of Foods, National Institute of Health Sciences, Kawasaki, Japan.,Faculty of Pharmaceutical Sciences, Hoshi University, Tokyo, Japan
| | - Tomoaki Tsutsumi
- Division of Foods, National Institute of Health Sciences, Kawasaki, Japan
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21
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Nakamura K, Chiba S, Kiuchi T, Nabeshi H, Tsutsumi T, Akiyama H, Hachisuka A. Comprehensive analysis of a decade of cumulative radiocesium testing data for foodstuffs throughout Japan after the 2011 Fukushima Daiichi Nuclear Power Plant accident. PLoS One 2022; 17:e0274070. [PMID: 36129916 PMCID: PMC9491560 DOI: 10.1371/journal.pone.0274070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 08/19/2022] [Indexed: 11/18/2022] Open
Abstract
The unexpected accident at the Fukushima Daiichi Nuclear Power Station in Japan, which occurred on March 11th, 2011, after the Great East Japan Earthquake and tsunami struck the north-eastern coast of Japan, released radionuclides into the environment. Today, because of the amounts of radionuclides released and their relatively long half-life, the levels of radiocesium contaminating foodstuffs remain a significant food safety concern. Foodstuffs in Japan have been sampled and monitored for 134,137Cs since the accident. More than 2.5 million samples of foodstuffs have been examined with the results reported monthly during each Japanese fiscal year (FY, from April 1st to March 31st) from 2012 to 2021. A total of 5,695 samples of foodstuffs within the “general foodstuffs” category collected during this whole period and 13 foodstuffs within the “drinking water including soft drinks containing tea as a raw material” category sampled in FY 2012 were found to exceed the Japanese maximum permitted level (JML) set at 100 and 10 Bq/kg, respectively. No samples from the “milk and infant foodstuffs” category exceeded the JML (50 Bq/kg). The annual proportions of foodstuffs exceeding the JML in the “general foodstuffs” category varied between 0.37% and 2.57%, and were highest in FY 2012. The 134,137Cs concentration for more than 99% of the foodstuffs monitored and reported has been low and not exceeding the JML in recent years, except for those foodstuffs that are difficult to cultivate, feed or manage, such as wild mushrooms, plants, animals and fish. The monitoring data for foodstuffs show the current status of food safety risks from 134,137Cs contamination, particularly for cultured and aquaculture foodstuffs on the market in Japan.
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Affiliation(s)
- Kosuke Nakamura
- National Institute of Health Sciences, Kawasaki, Kanagawa, Japan
- * E-mail:
| | - Shinji Chiba
- National Institute of Health Sciences, Kawasaki, Kanagawa, Japan
| | - Takashi Kiuchi
- National Institute of Health Sciences, Kawasaki, Kanagawa, Japan
| | - Hiromi Nabeshi
- National Institute of Health Sciences, Kawasaki, Kanagawa, Japan
| | - Tomoaki Tsutsumi
- National Institute of Health Sciences, Kawasaki, Kanagawa, Japan
| | - Hiroshi Akiyama
- National Institute of Health Sciences, Kawasaki, Kanagawa, Japan
| | - Akiko Hachisuka
- National Institute of Health Sciences, Kawasaki, Kanagawa, Japan
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22
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Suzuki Y, Kondo M, Akiyama H, Ogra Y. Presence of nano-sized mercury-containing particles in seafoods, and an estimate of dietary exposure. Environ Pollut 2022; 307:119555. [PMID: 35654251 DOI: 10.1016/j.envpol.2022.119555] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 05/24/2022] [Accepted: 05/27/2022] [Indexed: 06/15/2023]
Abstract
The toxicity of nano-sized particles of mercury (NP-Hg), which are thought to be generated during the detoxification of methyl mercury (MeHg), may differ from that of MeHg, elemental Hg (Hg0), and inorganic Hg (I-Hg). From a human health perspective, it is important to evaluate the presence of NP-Hg in seafoods. We investigated the in vivo formation of NP-Hg in fish and shellfish, which are the main sources of Hg exposure in humans. NP-Hg was measured in 90 fish samples with single-particle inductively coupled plasma mass spectrometry (spICP-MS) after enzyme degradation with pancreatin and lipase. In addition to NP-Hg, total Hg (T-Hg), MeHg, and selenium (Se) concentrations were evaluated. Transient Hg signals were detected as nanoparticles from almost all samples by using spICP-MS. Higher particle number concentrations (CPN) were observed in the tuna-swordfish group than in the shellfish group (17.7 × 107 vs. 1.2 × 106 particles/g, respectively). Although the CPN and maximum particle mass increased significantly with increasing T-Hg concentration, the increase in CPN was greater than those in maximum particle mass. Assuming that the NP-Hg detected was HgSe (tiemannite) and spherical based on previous reports, the maximum particle diameter was estimated to be 89 nm. The mean dietary exposures to NP-Hg, T-Hg, and MeHg were estimated to be 0.067, 5.75, and 5.32 μg/person per day, respectively. Generation of NP-Hg was inferred to be widespread in marine animals, with a preferential increase in the number of particles rather than an increase in particle size. The mean dietary exposure to NP-Hg in Japanese people was estimated to be 1.2 ng/kg body weight (BW) per day. Compared to PTWI of 4 μg/kg BW per week (0.57 μg/kg BW per day) derived by JECFA (2011), the health risk from redissolved I-Hg from NP-Hg is small.
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Affiliation(s)
- Yoshinari Suzuki
- Division of Foods, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa, 210-9501, Japan.
| | - Midori Kondo
- Division of Foods, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa, 210-9501, Japan
| | - Hiroshi Akiyama
- Division of Foods, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa, 210-9501, Japan; Department of Analytical Chemistry, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo, 142-8501, Japan
| | - Yasumitsu Ogra
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba-shi, Chiba, 260-8675, Japan
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23
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Takacsi-Nagy Z, Ferenczi O, Major T, Akiyama H, Frohlich G, Oberna F, Revesz M, Poosz M, Polgar C. OC-0615 Results of sole postoperative interstitial, high-dose-rate brachytherapy of tongue tumours. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)02637-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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24
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Fukuie T, Takeuchi S, Saito M, Adachi R, Akiyama H, Suzuki Y, Ohya Y, Saito H. Analysis of Clinical Food Allergen Thresholds by Comparing Threshold Dose Distributions. J Allergy Clin Immunol 2022. [DOI: 10.1016/j.jaci.2021.12.392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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25
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Fukiwake T, Enomoto K, Yoshino H, Uchimoto K, Nishimura M, Akiyama H. [Pharmaceutical Ingredients Detected in Dietary Supplements Purchased by Chiba Prefecture (Fiscal Years 2014-2021)]. Shokuhin Eiseigaku Zasshi 2022; 63:141-150. [PMID: 36047090 DOI: 10.3358/shokueishi.63.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In the pharmaceutical ingredients contamination testing of 702 commercial dietary supplement products, during fiscal years 2014-2021, 14 pharmaceutical ingredients, barrenwort, leaf axils of senna, and small leaf of senna were detected in 28 products. Screening and confirmation of the pharmaceutical ingredients in the products were performed by ultra-high performance liquid chromatography with photodiode array detector and ultra-high performance liquid chromatography-quadrupole-kingdon trap mass spectrometry, respectively. In particular, leaf axils and small leaf of senna were identified by stereomicroscopy and scanning electron microscopy. Furthermore, we found several pharmaceutical ingredients that exceeded the daily medicated dosage; therefore, it is important to prevent the distribution of such products to prevent the occurrence of health hazard. For that reason, it is necessary to continue the sample purchasing and testing systems to monitor the distribution of products containing pharmaceutical ingredients.
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Affiliation(s)
- Tomohide Fukiwake
- Chiba Prefectural Institute of Public Health
- Graduate School of Pharmacy, Hoshi University
| | | | | | | | | | - Hiroshi Akiyama
- Graduate School of Pharmacy, Hoshi University
- National Institute of Health Sciences
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26
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Akiyama H, Takagi A, Inoue K, Suzuki Y, Ito R, Wakui N, Asai M, Sugiura J. [Evaluation of a Risk Communication Program for Pesticide Residues]. Shokuhin Eiseigaku Zasshi 2021; 62:187-192. [PMID: 34955469 DOI: 10.3358/shokueishi.62.187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
To promote and raise the awareness of accurate knowledge on pesticide residues, the symposium program on risk communication on pesticide residues was held by the broadcasted online style. The risk communication program was statistically evaluated using a pre- and post-program online questionnaire survey. We had the questionnaire answers of the 105 valid participants. The analysis of post-program questionnaires shows that the risk communication program was effective in terms of levels of understanding and interest. Pre-program risk perception or awareness of safety assessments was significantly and positively correlated with awareness for establishing standard values of pesticide residues by the analysis of pre-program questionnaires. Risk perception after the program was significantly higher than before the program, suggesting that risk perception increased due to the program by analysis the same question between pre- and post-program questionnaires. Multiple regression analysis suggests that the participants with higher pre-program awareness of safety assessments or pre-program awareness for establishing standard values appeared to have higher levels of understanding and post-program risk perception.
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Affiliation(s)
- Hiroshi Akiyama
- School of Pharmacy, Hoshi University.,Division of Foods, National Institute of Health Sciences
| | - Aya Takagi
- Faculty of Social Systems Science, Chiba Institute of Technology
| | - Koichi Inoue
- College of Pharmaceutical Sciences, Ritsumeikan University
| | | | - Rie Ito
- School of Pharmacy, Hoshi University
| | | | - Mayumi Asai
- Division of Foods, National Institute of Health Sciences
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Takeuchi K, Ogawa H, Kuramitsu N, Akaike K, Goto A, Aoki H, Lassar A, Suehara Y, Hara A, Matsumoto K, Akiyama H. Colchicine protects against cartilage degeneration by inhibiting MMP13 expression via PLC-γ1 phosphorylation. Osteoarthritis Cartilage 2021; 29:1564-1574. [PMID: 34425229 PMCID: PMC8542595 DOI: 10.1016/j.joca.2021.08.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 07/17/2021] [Accepted: 08/10/2021] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Low molecular weight compounds that reduce the expression of MMP13 at the mRNA level might serve as disease-modifying osteoarthritis (OA) drugs (DMOADs). The objective of this study was to identify a candidate DMOAD that targets MMP13 expression. DESIGN High-throughput screening was performed to identify compounds that suppress inflammatory cytokine-induced MMP13 expression. Ingenuity pathway analysis (IPA) using isobaric tags for relative and absolute quantification (iTRAQ)-based proteomic analysis was conducted to identify signaling pathways related to cytokines. MMP13 expression in chondrocytes was evaluated through RT-qPCR and western blotting analyses. Additionally, 10-week-old mice were subjected to destabilization of the medial meniscus (DMM) surgery to induce OA and were sacrificed 12 weeks post-surgery for pathological examination. OA was evaluated using the OARSI scoring system. RESULTS Colchicine was identified as a DMOAD candidate as it inhibited inflammatory cytokine-induced MMP13 expression in vitro, and the colchicine-administered mice with DMM presented significantly lower OARSI scores (adjusted P: 0.0242, mean difference: 1.6, 95% confidence interval (CI) of difference: 0.1651-3.035) and significantly lower synovial membrane inflammation scores (adjusted P: 0.0243, mean difference: 0.6, 95% CI of difference: 0.06158-1.138) than mice with DMM. IPA further revealed that components of the Rho signaling pathways are regulated by cytokines and colchicine. IL-1β and TNF-α activate RAC1 and SRC signals, respectively, leading to the phosphorylation of PLC-γ1 and synergistic induction of MMP13 expression. Most notably, colchicine abrogates inflammatory cytokine-induced phosphorylation of PLC-γ1, leading to the induction of MMP13 expression. CONCLUSIONS Colchicine is a potential DMOAD candidate that inhibits MMP13 expression and consequent cartilage degradation by disrupting the SRC/RAC1-phospho-PLCγ1-Ca2+ signaling pathway.
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Affiliation(s)
- K Takeuchi
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, Gifu, 501-1194, Japan
| | - H Ogawa
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, Gifu, 501-1194, Japan; Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Hayashi-machi 6-85-1, Ogaki, Gifu, 503-0015, Japan.
| | - N Kuramitsu
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, Gifu, 501-1194, Japan
| | - K Akaike
- Department of Orthopaedic Surgery, Juntendo University School of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo, 113-8431, Japan
| | - A Goto
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, Gifu, 501-1194, Japan
| | - H Aoki
- Department of Tissue and Organ Development, Regeneration and Advanced Medical Science, Gifu Graduate School of Medicine, Yanagido 1-1, Gifu, Gifu, 501-1194, Japan
| | - A Lassar
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, 240 Longwood Ave., Boston, MA, 02115, USA
| | - Y Suehara
- Department of Orthopaedic Surgery, Juntendo University School of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo, 113-8431, Japan
| | - A Hara
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, Gifu, 501-1194, Japan
| | - K Matsumoto
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, Gifu, 501-1194, Japan
| | - H Akiyama
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, Gifu, 501-1194, Japan
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28
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Kurohara T, Ito T, Tsuji G, Misawa T, Yokoo H, Yanase Y, Shoda T, Sakai T, Hosoe J, Uchiyama N, Akiyama H, Demizu Y. Synthesis of Norgestomet and its 17β-isomer and evaluation of their agonistic activities against progesterone receptor. Bioorg Med Chem 2021; 49:116425. [PMID: 34607200 DOI: 10.1016/j.bmc.2021.116425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 09/13/2021] [Accepted: 09/17/2021] [Indexed: 11/30/2022]
Abstract
Norgestomet is a synthetic progesterone derivative applied in veterinary medicine to control estrus and ovulation in cattle. Norgestomet has been widely used in the livestock industry to promote the synchronization of estrus in cattle and increase pregnancy rates. However, highly reproducible synthetic methods for Norgestomet have been rarely reported. Here, we described a method for the synthesis of Norgestomet and performed quantitative NMR analysis to determine the purity of the products. Moreover, the agonistic activity of the synthesized compounds against progesterone receptors (PRs) was evaluated using an alkaline phosphatase assay. We synthesized Norgestomet with 97.9% purity that exhibited agonistic activity against PR with EC50 values of 4.5 nM. We also synthesized the 17β-isomer of Norgestomet with 92.7% purity that did not exhibit any PR agonistic activity. The proposed synthetic route of Norgestomet can facilitate the assessment of residual Norgestomet in foods.
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Affiliation(s)
- Takashi Kurohara
- National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki, Kanagawa 210-9501, Japan
| | - Takahito Ito
- National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki, Kanagawa 210-9501, Japan
| | - Genichiro Tsuji
- National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki, Kanagawa 210-9501, Japan.
| | - Takashi Misawa
- National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki, Kanagawa 210-9501, Japan.
| | - Hidetomo Yokoo
- National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki, Kanagawa 210-9501, Japan; Graduate School of Medicine, Kyoto Prefectural University of Medicine, 465, Kajii-cho, Sakyo-ku, Kyoto-shi, Kyoto 606-0823, Japan
| | - Yuta Yanase
- National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki, Kanagawa 210-9501, Japan; Graduate School of Medical Life Science, Yokohama City University, 1-7-29, Yokohama, Kanagawa 230-0045, Japan
| | - Takuji Shoda
- National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki, Kanagawa 210-9501, Japan
| | - Takatoshi Sakai
- National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki, Kanagawa 210-9501, Japan
| | - Junko Hosoe
- National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki, Kanagawa 210-9501, Japan
| | - Nahoko Uchiyama
- National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki, Kanagawa 210-9501, Japan
| | - Hiroshi Akiyama
- National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki, Kanagawa 210-9501, Japan; School of Pharmaceutical Sciences, Hoshi University, 2-4-41, Ebara, Shinagawa-ku, Tokyo 142-8501, Japan
| | - Yosuke Demizu
- National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki, Kanagawa 210-9501, Japan; Graduate School of Medical Life Science, Yokohama City University, 1-7-29, Yokohama, Kanagawa 230-0045, Japan
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Iwatsubo T, Niimi Y, Akiyama H. Editorial: Alzheimer's Disease Research in Japan: A Short History, Current Status and Future Perspectives toward Prevention. J Prev Alzheimers Dis 2021; 8:462-464. [PMID: 34585221 DOI: 10.14283/jpad.2021.38] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A recent report from the Hisayama study, a representative regional cohort in Japan, showed that the lifetime risk of dementia in the Japanese elderly population has exceeded 50%, in which >50% of all dementia cause is comprised by Alzheimer’s disease (AD) (1). The total number of individuals with dementia in Japan is more than >5 million, and the global costs of dementia is estimated to exceed 14.5 trillion yen (equivalent to ~133 billion USD). Thus, there is an urgent and compelling need for the prevention of dementia, especially that of AD.
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Affiliation(s)
- T Iwatsubo
- Takeshi Iwatsubo, Department of Neuropathology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo Bunkyo-ku, Tokyo 113-0033, Japan. E-mail: , Phone +81-3-5841-3541, FAX +81-3-5841-3613
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30
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Peng H, Kawamura T, Akiyama H, Chang L, Iwata R, Muraoka I. Effects of sex differences on breath-hold diving performance. Respir Physiol Neurobiol 2021; 293:103721. [PMID: 34153544 DOI: 10.1016/j.resp.2021.103721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 05/16/2021] [Accepted: 06/17/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE The present study aimed to measure diving response, CO2 sensitivity and forced vital capacity in male and female breath-hold divers (BHDs), and to determine their effect on breath-hold diving performance. METHODS This study included 8 non-divers (NDs, 4 males and 4 females) and 15 BHDs (7 males and 8 females). For NDs, diving response was measured during breath-holding with facial immersion, whereas for BHDs CO2 sensitivity was also measured. RESULTS Compared to NDs, BHDs showed a prominent diving response. In BHDs, no statistically significant sex differences were observed in diving response and CO2 sensitivity. Furthermore, a positive correlation was found between performance and the % forced vital capacity in BHDs. CONCLUSION It was suggested that % forced vital capacity contributed more significantly to performance than diving response and CO2 sensitivity. Furthermore, the higher performance of male divers compared to female divers may be due to the % forced vital capacity rather than the diving response and CO2 sensitivity.
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Affiliation(s)
- Heng Peng
- Graduate School of Sport Sciences, Waseda University, 2-579-15 Mikajima, Tokorozawa-city, Saitama, 359-1192, Japan.
| | - Takuji Kawamura
- Waseda Institute for Sport Sciences, 2-579-15 Mikajima, Tokorozawa-city, Saitama, 359-1192, Japan
| | - Hiroshi Akiyama
- National Institutes of Biomedical Innovation, Health and Nutrition, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8636, Japan
| | - Lili Chang
- Graduate School of Sport Sciences, Waseda University, 2-579-15 Mikajima, Tokorozawa-city, Saitama, 359-1192, Japan
| | - Risa Iwata
- Japan Institute of Sport Sciences, 3-15-1 Nishigaoka, Kita-ku, Tokyo, 115-0056, Japan
| | - Isao Muraoka
- Faculty of Sport Sciences, Waseda University, 2-579-15 Mikajima, Tokorozawa-city, Saitama, 359-1192, Japan
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Terasawa F, Akiyama H, Sakuragi T, Haneda S, Shirakata C. Embryo and fetal position during pregnancy by ultrasonographic examinations in bottlenose dolphin (Tursiops truncatus). J Vet Med Sci 2021; 83:1138-1143. [PMID: 34092744 PMCID: PMC8349815 DOI: 10.1292/jvms.21-0181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
From 2012 to 2017, serial ultrasonographic evaluation of 5 healthy bottlenose dolphins, Tursiops truncatus, were performed over the course of
6 pregnancies in Enoshima Aquarium. A total of 98 ultrasonographic examinations were included in the study. In three out of six cases, two embryos were observed
between umbilicus and genital slit, and side of umbilicus in the dam’s body. All embryos were located in right below the peritoneum and observed from 308 to 325
days pre-partum. These days were corresponding to from 58 to 61 days after copulation respectively. The diameter of the embryo sac was
approximately 4 cm. In three cases, the fetal head was located in the dam’s left lateral between umbilicus and genital slit from approximately 90 days
pre-partum to the parturition. A snout of fetus is at the top of the uterine horn, and the tail lies close to the cervix. All six calves were
fluke-first births (breech presentation). It was conjectured that the contraction of the dam’s uterus during parturition forced the fetus to invert, and the
fetal tail fluke was expelled from the dam’s body. In three cases, judging from orientation of fetal tail fluke faced towards left side of the dam, a fetal
position might be RSL (Right Sacrum-Lateral) within the birth canal. In the other three cases, the left and right positions of the fetus and the dam’s body are
reversed during pregnancy and parturition.
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Affiliation(s)
- Fumio Terasawa
- Enoshima Aquarium, 2-19-1 Katase-kaigan, Fujisawa, Kanagawa 251-0035, Japan
| | - Hiroshi Akiyama
- Enoshima Aquarium, 2-19-1 Katase-kaigan, Fujisawa, Kanagawa 251-0035, Japan
| | - Toru Sakuragi
- Enoshima Aquarium, 2-19-1 Katase-kaigan, Fujisawa, Kanagawa 251-0035, Japan
| | - Shuto Haneda
- Enoshima Aquarium, 2-19-1 Katase-kaigan, Fujisawa, Kanagawa 251-0035, Japan
| | - Chika Shirakata
- Enoshima Aquarium, 2-19-1 Katase-kaigan, Fujisawa, Kanagawa 251-0035, Japan
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Ando T, Watanabe T, Matsuo S, Samejima T, Yamagishi J, Bito T, Naruse G, Yoshida A, Minatoguchi S, Akiyama H, Nishigaki K, Minatoguchi S, Okura H. The feasibility of a newly developed local network system for cardiac rehabilitation (the CR-GNet) in disease management and physical fitness after acute coronary syndrome. Eur J Prev Cardiol 2021. [DOI: 10.1093/eurjpc/zwab061.262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Foundation. Main funding source(s): Grant-in-aid from.jpgu Prefecture
Background
The newly developed Cardiac Rehabilitation.jpgu Network (CR-GNet) has been implemented to create a regional alliance network and to provide periodic follow-up examinations to enhance the disease management in patients with cardiovascular disease. The effectiveness of a network like this support system has not yet been evaluated in Japan.
Purpose
We aimed to examine the feasibility of the CR-GNet in disease management, assisting patients in attaining physical fitness and its impact on long-term outcomes after acute coronary syndrome (ACS).
Methods
We enrolled 47 patients with ACS in the CR-GNet between February 2016 and September 2019; of these, 37, 29, and 21 patients underwent follow-up assessments for exercise capacity (peak oxygen uptake) at 3 months, 6 months, and 1 year after discharge, respectively. Major adverse cardiac events (MACE) were defined as the composite of death from cardiac causes, cardiac arrest, myocardial infarction, and rehospitalization due to unstable or progressive angina. MACE were compared with controls who were not registered in the CR-GNet.
Results
The coronary risk factors, except blood pressure, improved at 3 and 6 months, and 1 year after discharge. These risk factors in each patient significantly reduced from 2.9 at admission to 1.6, 1.4, and 1.9 at 3 months, 6 months, and 1 year after discharge (p < 0.05), respectively. Peak oxygen uptake was significantly higher at 3 months, 6 months, and 1 year after discharge to 17.5 ± 4.9 ml/kg/min, 17.9 ± 5.1 ml/kg/min, and 17.5 ± 5.5 ml/kg/min, respectively, than that at discharge (14.7 ± 3.6 ml/kg/min) (p < 0.05). During follow-up, there was no significant difference; MACE did not occur in any patients in the CR-GNet but occurred in controls.
Conclusions
The CR-GNet is a feasible option for long-term management of ACS patients. The prognostic impact of the CR-GNet needs further investigation with a larger sample size and longer follow-up.
Table1 At admission 3 months 6 months 1 year Average number 2.9 1.6* 1.4** 1.9*** † Average number of coronary risk factors for all patients (n = 21) p = 0.004, vs. at admission; **p = 0.001, vs. at admission; ***p = 0.011, vs. at admission; †p = 0.035, vs. at 6 months
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Affiliation(s)
- T Ando
- jpgu Universiry, jpgu, Japan
| | | | | | | | | | - T Bito
- jpgu Universiry, jpgu, Japan
| | | | | | | | | | | | | | - H Okura
- jpgu Universiry, jpgu, Japan
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Saito-Shida S, Kashiwabara N, Nemoto S, Akiyama H. Determination of 8α-hydroxymutilin as a Marker Residue for Tiamulin in Swine Tissue by Liquid Chromatography-Tandem Mass Spectrometry. FOOD ANAL METHOD 2021. [DOI: 10.1007/s12161-020-01950-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Shiono K, Tsutsumi T, Nabeshi H, Ikeda A, Yokoyama J, Akiyama H. Simple and rapid determination of biogenic amines in fish and fish products by liquid chromatography-tandem mass spectrometry using 2,4,6-triethyl-3,5-dimethyl pyrylium trifluoromethanesulfonate as a derivatization reagent. J Chromatogr A 2021; 1643:462046. [PMID: 33774435 DOI: 10.1016/j.chroma.2021.462046] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 02/15/2021] [Accepted: 03/03/2021] [Indexed: 11/18/2022]
Abstract
A simple and rapid analytical method was developed for determination of four biogenic amines [histamine (Him), cadaverine (Cad), tyramine (Tym), 2-phenylethylamine (Pea)] in fish and fish products. This method uses a new derivatization reagent, 2,4,6-triethyl-3,5-dimethyl pyrylium trifluoromethanesulfonate (Py-Tag). The four biogenic amines in the samples were extracted with trichloroacetic acid. The diluted extract was derivatized with Py-Tag (15 min at 50°C) and then subjected to liquid chromatography-tandem mass spectrometry (LC-MS/MS). The limits of quantification for the method were 2 mg/kg for Him, Tym, and Pea and 10 mg/kg for Cad. The matrix effects derived from the tested fish and fish products were negligible in the LC-MS/MS analysis. The impact of the sample matrices on the Py-Tag derivatization was also negligible. The trueness and repeatability of the method were assessed by performing replicate analyses (n = 5) of five samples of fish and fish products, each spiked with the four biogenic amines at three different concentration levels. Analysis of the samples found 87%-104% of the spiked concentrations and the relative standard deviations were <6.1%. A reference sample and quality control canned fish samples were analyzed by the method, and the concentrations of the Him were within acceptable limits. The developed method was successfully used to determine concentrations of the four biogenic amines in 48 fish and fish products on the Japanese market. The developed method does not require cleanup using a solid-phase extraction column or similar, and the derivatization reaction time was only 15 min. The results suggested that the present method is reliable and suitable for rapid analysis of the four biogenic amines in fish and fish products.
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Affiliation(s)
- Kouji Shiono
- Division of Foods, National Institute of Health Sciences, Tonomachi 3-25-26, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan
| | - Tomoaki Tsutsumi
- Division of Foods, National Institute of Health Sciences, Tonomachi 3-25-26, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan.
| | - Hiromi Nabeshi
- Division of Foods, National Institute of Health Sciences, Tonomachi 3-25-26, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan
| | - Akari Ikeda
- Taiyo Nippon Sanso Corp., SI Innovation Center, 2008-2 Wada, Tama, Tokyo 206-0001, Japan
| | - Jun Yokoyama
- Taiyo Nippon Sanso Corp., SI Innovation Center, 2008-2 Wada, Tama, Tokyo 206-0001, Japan
| | - Hiroshi Akiyama
- Division of Foods, National Institute of Health Sciences, Tonomachi 3-25-26, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan
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Igarashi Y, Takahashi M, Tsutsumi T, Inoue K, Akiyama H. Monitoring Analysis of Perfluoroalkyl Substances and F-53B in Bottled Water, Tea and Juice Samples by LC-MS/MS. Chem Pharm Bull (Tokyo) 2021; 69:286-290. [PMID: 33642478 DOI: 10.1248/cpb.c20-00888] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Monitoring analysis of 14 per- and polyfluoroalkyl substances (PFAS), 9-chlorohexadecafluoro-3-oxanonane-1-sulfonate (F-53B) and dodecafluoro-3H-4,8-dioxanonanoate (ADONA) in bottled drinking water, tea and juice samples was performed using LC coupled with tandem mass spectrometry (LC-MS/MS) and solid-phase extraction (SPE). In the electrospray negative ion mode, the limit of detection and limit of quantification (LOQ) values were 0.1 to 0.8 ng/mL and 0.2 to 1.6 ng/mL, respectively. The calibration curves were linear from LOQ to 50 ng/mL (r2 > 0.999). The SPE procedure (Presep PFC-II) was utilized for sample preparation and recovery rates for three standards (35, 70 and 140 ng/L) were 80.4-118.8% with relative standard deviation (RSD) ≤ 0.6%. Using the developed method, various samples (n = 54) from Japanese markets were investigated for PFAS and F-53B contamination, and values below the LOQ were observed. It is concluded that for monitoring products in the Japanese market, our method represents a significant improvement over complex techniques for the quantification of PFAS and related compounds from various foods.
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Affiliation(s)
- Yuki Igarashi
- College of Pharmaceutical Sciences, Ritsumeikan University
| | - Miki Takahashi
- College of Pharmaceutical Sciences, Ritsumeikan University
| | | | - Koichi Inoue
- College of Pharmaceutical Sciences, Ritsumeikan University
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Tsutsumi T, Kawashima A, Hamada N, Adachi R, Akiyama H. A novel analytical method for determining total polychlorinated biphenyl concentrations in fish and shellfish using a simple and rapid clean-up followed by GC–MS/MS. J Food Compost Anal 2021. [DOI: 10.1016/j.jfca.2020.103725] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Saito-Shida S, Nemoto S, Akiyama H. Multiresidue method for determining multiclass acidic pesticides in agricultural foods by liquid chromatography-tandem mass spectrometry. Anal Methods 2021; 13:894-902. [PMID: 33491688 DOI: 10.1039/d0ay02101f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A reliable multiresidue method was developed for determining multiclass acidic pesticides in cereal grains, legumes, vegetables, and fruits. The target pesticides comprise 75 compounds, including phenoxy acid, sulfonylurea, imidazoline, and triazolopyrimidine herbicides, with acidic dissociation constant (pKa) values of 1.9-5.9. The method includes extraction with acidified acetonitrile, salting out, cleanup with octadecyl silica and primary secondary amine cartridges, and subsequent liquid chromatography-tandem mass spectrometry. The analytical performance of the developed method was validated for nine foods (i.e., brown rice, soybeans, peanuts, spinach, cabbage, eggplant, potatoes, apples, and oranges) at a concentration of 0.01 mg kg-1. Because matrix effects were negligible for most pesticide and food combinations, solvent-based calibration curves were used for quantification purposes. Most of the target compounds exhibited satisfactory analytical performance with trueness values of 70-100% and relative standard deviations below 14%. The high selectivity of the developed method was evidenced by the absence of interfering peaks near those of the target analytes. With the exception of 1-naphthaleneacetic acid, for which linearity was observed at 2.5-100 ng mL-1, linear calibration curves were constructed for the target compounds in the 1-100 ng mL-1 range, with coefficients of determination exceeding 0.995. The limits of detection were 3 μg kg-1 or below in the examined matrices. The results demonstrate that the developed method is suitable for monitoring acidic pesticides in a variety of foods.
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Affiliation(s)
- Shizuka Saito-Shida
- Division of Foods, National Institute of Health Sciences, Tonomachi 3-25-26, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan.
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38
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Takahashi M, Yada M, Morimoto K, Nemoto S, Akiyama H, Inoue K. Simultaneous determination of alachlor and its metabolites in beef muscle, liver, milk, and egg by liquid chromatography–tandem mass spectrometry. Sep Sci plus 2021. [DOI: 10.1002/sscp.202000091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Miki Takahashi
- College of Pharmaceutical Sciences Ritsumeikan University 1‐1‐1 Nojihigashi Kusatsu Shiga Japan
| | - Maito Yada
- College of Pharmaceutical Sciences Ritsumeikan University 1‐1‐1 Nojihigashi Kusatsu Shiga Japan
| | - Koji Morimoto
- College of Pharmaceutical Sciences Ritsumeikan University 1‐1‐1 Nojihigashi Kusatsu Shiga Japan
| | - Satoru Nemoto
- National Institute of Health Sciences 3–25–26 Tonomachi, Kawasaki–ku Kawasaki Kanagawa Japan
| | - Hiroshi Akiyama
- National Institute of Health Sciences 3–25–26 Tonomachi, Kawasaki–ku Kawasaki Kanagawa Japan
| | - Koichi Inoue
- College of Pharmaceutical Sciences Ritsumeikan University 1‐1‐1 Nojihigashi Kusatsu Shiga Japan
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Takahashi M, Yada M, Morimoto K, Nemoto S, Akiyama H, Inoue K. Inside Front Cover: Simultaneous determination of alachlor and its metabolites in beef muscle, liver, milk, and egg by liquid chromatography–tandem mass spectrometry. Sep Sci plus 2021. [DOI: 10.1002/sscp.202170007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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40
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Okamoto Y, Nunome M, Kondo M, Kitayama I, Suzuki Y, Akiyama H. Quantification of progesterone in beef with marbling using liquid chromatography-tandem mass spectrometry with stable isotope-labelled standards. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2021; 38:409-417. [PMID: 33455529 DOI: 10.1080/19440049.2020.1869326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Progesterone (P4) is contained naturally in animal tissue, and it is also used as a veterinary drug in cattle for treatment purposes. To assess the risk from P4 residues in beef derived from treated cattle, it is essential to quantify the P4 contained naturally in cattle tissue (endogenous P4). Therefore, we performed a method validation for the quantification of endogenous P4 (method quantification limit = 0.06 ng g-1) by using isotope-labelled P4s, and investigated the P4 contents in Japanese beef (n= 112; 0.07 to 121 ng g-1). The P4 contents in cattle muscle ranged from 0.07 to 54.3 ng g-1 in males, and from 0.27 to 121 ng g-1 in females. Our investigation also indicated that the developed method using both 13C- and deuterium-labelled P4 standards could be used to certify the recovery of P4 from cattle muscle containing various amounts of intramuscular fat, and enabled the determination of the P4 content in all Japanese beef samples that exceeded the method quantification limit.
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Affiliation(s)
| | - Mari Nunome
- National Institute of Health Sciences, Kanagawa, Japan
| | - Midori Kondo
- National Institute of Health Sciences, Kanagawa, Japan
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41
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Amakura Y, Yoshimura M, Sugimoto N, Akiyama H. Characterization of Components in Natural Products for the Evaluation of Existing Food Additives in Japan. Chem Pharm Bull (Tokyo) 2021; 69:11-17. [PMID: 33390513 DOI: 10.1248/cpb.c20-00286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In Japan, existing food additives are those included in the List of Existing Food Additives specified in the Supplementary Provisions to the Law Concerning Amendments to the Food Sanitation Law and Nutrition Improvement Law. Most of the currently available food additives are natural extracts containing various ingredients. However, the characteristic and active components of existing food additives are not always properly defined due to poor characterization of the constituents of the respective raw materials. For that reason, the characteristic components of existing food additives from natural extracts have been evaluated using various methods and reported. Here we review examples of our research on the characterization of marker constituents of existing food additives from natural products.
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Affiliation(s)
- Yoshiaki Amakura
- Department of Pharmacognosy, College of Pharmaceutical Sciences, Matsuyama University
| | - Morio Yoshimura
- Department of Pharmacognosy, College of Pharmaceutical Sciences, Matsuyama University
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42
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Saito-Shida S, Nemoto S, Akiyama H. Quantitative and Confirmatory Analysis of Pesticide Residues in Cereal Grains and Legumes by Liquid Chromatography-Quadrupole-Time-of-Flight Mass Spectrometry. Foods 2021; 10:foods10010078. [PMID: 33401602 PMCID: PMC7823789 DOI: 10.3390/foods10010078] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 12/24/2020] [Accepted: 12/30/2020] [Indexed: 11/16/2022] Open
Abstract
For controlling pesticide residues in food and ensuring food safety, multiresidue methods that can monitor a wide range of pesticides in various types of foods are required for regulatory monitoring. In this study, to demonstrate the applicability of liquid chromatography-quadrupole time-of-flight mass spectrometry (LC-QTOF-MS) for quantitative and confirmatory analysis of pesticide residues in cereal grains and legumes, the LC-QTOF-MS method using full-scan acquisition was validated for 151 pesticides in brown rice, soybeans, and peanuts at a spiked level of 0.01 mg/kg. With the exception of 5 out of 151 target pesticides, sufficiently high signal intensities were obtained at 0.005 μg/mL (corresponding to 0.01 mg/kg). Trueness was in the range 70-95%, with intra- and inter-day precisions below 16% and 24%, respectively, with the exception of 7 pesticides in brown rice, 10 pesticides in soybeans, and 9 pesticides in peanuts. No interfering peaks were observed near the retention times of the target pesticides. Furthermore, information on accurate fragment-ion masses obtained by a data-independent acquisition enabled unambiguous confirmation. The results suggest that the LC-QTOF-MS method is suitable for pesticide residues' analysis of cereal grains and legumes, and can be utilized for regulatory routine analysis.
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Suzuki Y, Tanaka N, Akiyama H. Attempt of Bayesian Estimation from Left-censored Data Using the Markov Chain Monte Carlo Method: Exploring Cr(VI) Concentrations in Mineral Water Products. Food Saf (Tokyo) 2020; 8:67-89. [PMID: 33409115 PMCID: PMC7765759 DOI: 10.14252/foodsafetyfscj.d-20-00007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 10/14/2020] [Indexed: 11/26/2022] Open
Abstract
Hexavalent chromium (Cr(VI)) is toxic, carcinogenic, and mutagenic substances. Oral exposure to Cr(VI) is thought to be primarily from drinking water. However, under the certain reporting limit (~0.1 µg/L), percentage of Cr(VI) concentration in mineral water products under the reporting limit were estimated higher than 50%. Data whose values are below certain limits and thus cannot be accurately determined are known as left-censored. The high censored percentage leads to estimation of Cr(VI) exposure uncertain. It is well known that conventional substitution method often used in food analytical science cause severe bias. To estimate appropriate summary statistics on Cr(VI) concentration in mineral water products, parameter estimation using the Markov chain Monte Carlo (MCMC) method under assumption of a lognormal distribution was performed. Stan, a probabilistic programming language, was used for MCMC. We evaluated the accuracy, coverage probability, and reliability of estimates with MCMC by comparison with other estimation methods (discard nondetects, substituting half of reporting limit, Kaplan-Meier, regression on order statistics, and maximum likelihood estimation) using 1000 randomly generated data subsets (n = 150) with the obtained parameters. The evaluation shows that MCMC is the best estimation method in this context with greater accuracy, coverage probability, and reliability over a censored percentage of 10-90%. The mean concentration, which was estimated with MCMC, was 0.289×10-3 mg/L and this value was sufficiently lower than the regulated value of 0.05 mg/L stipulated by the Food Sanitation Act.
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Affiliation(s)
- Yoshinari Suzuki
- Division of Foods, National Institute of Health Science,
Tonomachi 3-25-26, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan
| | - Noriko Tanaka
- Department of Health Data Science Research, Healthy Aging
Innovation Center, Tokyo Metropolitan Geriatric Medical Center, Sakae-cho 35-2,
Itabashi-ku, Tokyo 173-0015, Japan
| | - Hiroshi Akiyama
- Division of Foods, National Institute of Health Science,
Tonomachi 3-25-26, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan
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Abstract
UNLABELLED We analyzed osteoporosis in 20 HME patients. According to the T-score of BMD, 30% and 67.5% of the patients fell in the range of osteopenia in the lumbar spine and femoral neck. Our results indicate HME patients have low bone mass. They do not have abnormal bone metabolism. INTRODUCTION There are few reports of osteoporosis in hereditary multiple exostoses (HME) patients. Therefore, the purpose of this study was to analyze osteoporosis in HME patients. METHODS This retrospective cohort study included 20 patients diagnosed with HME. Patients underwent bone mineral density (BMD) measurement of the lumbar spine (n = 20) and femoral neck (n = 40). Bone metabolic parameters, including serum osteocalcin and urinary cross-linked N-telopeptide of type 1 collagen (NTx), were analyzed in all subjects. EXT1 and EXT2 genes were sequenced using genomic DNA. We also examined the correlation between genotype and BMD Z-score and T-score. RESULTS The mean BMD values of the lumbar spine were 1.085 ± 0.116 g/cm2 (n = 11) in male and 1.108 ± 0.088 g/cm2 (n = 9) in female. The mean BMD values of the femoral neck area were 0.759 ± 0.125 g/cm2 (n = 22) in male and 0.749 ± 0.115 g/cm2 (n = 18) in female. Z-score of most HME patients show < 0, indicating that these patients tend to have low bone mass compared with the age-matched population. According to the T-score of BMD, 30% (6 of 20) and 67.5% (27 of 40) of the patients fell in the range of osteopenia in the lumbar spine and femoral neck areas, respectively. Serum osteocalcin and urinary NTx were in the normal range in most patients. There was no significant correlation between genotypes and Z-score. CONCLUSION HME patients have low bone mass, especially in the femoral neck area. They do not have abnormal bone metabolism, and there was no correlation between genotypes and Z-score.
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Affiliation(s)
- K Matsumoto
- Department of Orthopaedic Surgery, Gifu University, Graduate School of Medicine, 1-1, Yanagido, Gifu, 501-1194, Japan.
| | - H Ogawa
- Department of Orthopaedic Surgery, Gifu University, Graduate School of Medicine, 1-1, Yanagido, Gifu, 501-1194, Japan
| | - S Nozawa
- Department of Orthopaedic Surgery, Gifu University, Graduate School of Medicine, 1-1, Yanagido, Gifu, 501-1194, Japan
| | - H Akiyama
- Department of Orthopaedic Surgery, Gifu University, Graduate School of Medicine, 1-1, Yanagido, Gifu, 501-1194, Japan
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Saito-Shida S, Nagata M, Nemoto S, Akiyama H. Multi-residue determination of pesticides in green tea by gas chromatography-tandem mass spectrometry with atmospheric pressure chemical ionisation using nitrogen as the carrier gas. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2020; 38:125-135. [PMID: 33232630 DOI: 10.1080/19440049.2020.1846082] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Helium is commonly used as a carrier gas in gas chromatography-tandem mass spectrometry (GC-MS/MS); however, there are growing concerns regarding its global shortage and the resulting limited supply and high cost. Using nitrogen as an alternative carrier gas in GC-MS/MS with the widely used electron ionisation (EI) technique leads to a significantly lower sensitivity; thus, in this study, we explored the use of atmospheric-pressure chemical ionisation (APCI) as the ionisation method and examined the applicability of GC-(APCI)MS/MS with nitrogen gas for the determination of pesticide residues. GC-(APCI)MS/MS using nitrogen provided slightly wider peaks, and poorer isomeric separation compared to those using helium under identical conditions; however, the peak intensities were comparable. GC-(APCI)MS/MS using nitrogen was validated for 166 pesticides in green tea at a spiking level of 0.01 mg/kg and was compared with the conventional GC-(EI)MS/MS using helium gas. Except dimethomorph and resmethrin, GC-(APCI)MS/MS showed satisfactory results that were comparable to those of GC-(EI)MS/MS for most compounds, with trueness in the range of 73%-95% and relative standard deviations of <11%. The sensitivity and selectivity of GC-(APCI)MS/MS with nitrogen were superior to those of GC-(EI)MS/MS with helium. Therefore, GC-(APCI)MS/MS using nitrogen as the carrier gas, which has minimal concerns related to availability, could be a promising alternative to the conventional GC-(EI)MS/MS technique that employs helium.
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Affiliation(s)
| | - Mari Nagata
- Application Laboratory, Nihon Waters K.K., Waters Corporation , Tokyo, Japan
| | - Satoru Nemoto
- Division of Foods, National Institute of Health Sciences , Kanagawa, Japan
| | - Hiroshi Akiyama
- Division of Foods, National Institute of Health Sciences , Kanagawa, Japan
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Sakai T, Kikuchi H, Nawata H, Nemoto S, Akiyama H. [Analytical Method for Fipronil and Fipronil Sulfone in Livestock Products Using LC-MS/MS]. Shokuhin Eiseigaku Zasshi 2020; 61:171-177. [PMID: 33132360 DOI: 10.3358/shokueishi.61.171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A rapid and sensitive method for the simultaneous determination of fipronil and fipronil sulfone (metabolite B) in livestock products was developed. The analytes were extracted from samples with acidic acetonitrile. The crude extracts were subjected to clean-up step using neutral alumina cartridge column. The HPLC separation was performed on a C18 column with isocratic elution of acetonitrile and ammonium formate solution. For the determination of the analytes, a tandem mass spectrometry with negative ion electrospray ionization was used. In the recovery tests using 6 livestock products fortified with MRLs levels of analytes, the truenesses for fipronil and fipronil sulfone were 95 to 115 and 94 to 101% with the repeatabilities of 0.8 to 4.1 and 0.9 to 5.1 RSD%, respectively. The limits of quantification for both analytes were estimated to be 0.001 mg/kg. The developed method is considered suitable for regulatory analysis of fipronil and fipronil sulfone.
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Kawashima K, Ogawa H, Komura S, Ishihara T, Yamaguchi Y, Akiyama H, Matsumoto K. Heparan sulfate deficiency leads to hypertrophic chondrocytes by increasing bone morphogenetic protein signaling. Osteoarthritis Cartilage 2020; 28:1459-1470. [PMID: 32818603 PMCID: PMC7606622 DOI: 10.1016/j.joca.2020.08.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 08/03/2020] [Accepted: 08/11/2020] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Exostosin-1 (EXT1) and EXT2 are the major genetic etiologies of multiple hereditary exostoses and are essential for heparan sulfate (HS) biosynthesis. Previous studies investigating HS in several mouse models of multiple hereditary exostoses have reported that aberrant bone morphogenetic protein (BMP) signaling promotes osteochondroma formation in Ext1-deficient mice. This study examined the mechanism underlying the effects of HS deficiency on BMP/Smad signaling in articular cartilage in a cartilage-specific Ext-/- mouse model. METHOD We generated mice with a conditional Ext1 knockout in cartilage tissue (Ext1-cKO mice) using Prg4-Cre transgenic mice. Structural cartilage alterations were histologically evaluated and phospho-Smad1/5/9 (pSmad1/5/9) expression in mouse chondrocytes was analyzed. The effect of pharmacological intervention of BMP signaling using a specific inhibitor was assessed in the articular cartilage of Ext1-cKO mice. RESULTS Hypertrophic chondrocytes were significantly more abundant (P = 0.021) and cartilage thickness was greater in Ext1-cKO mice at 3 months postnatal than in control littermates (P = 0.036 for femur; and P < 0.001 for tibia). However, osteoarthritis did not spontaneously occur before the 1-year follow-up. matrix metalloproteinase (MMP)-13 and adamalysin-like metalloproteinases with thrombospondin motifs(ADAMTS)-5 were upregulated in hypertrophic chondrocytes of transgenic mice. Immunostaining and western blotting revealed that pSmad1/5/9-positive chondrocytes were more abundant in the articular cartilage of Ext1-cKO mice than in control littermates. Furthermore, the BMP inhibitor significantly decreased the number of hypertrophic chondrocytes in Ext1-cKO mice (P = 0.007). CONCLUSIONS HS deficiency in articular chondrocytes causes chondrocyte hypertrophy, wherein upregulated BMP/Smad signaling partially contributes to this phenotype. HS might play an important role in maintaining the cartilaginous matrix by regulating BMP signaling.
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Affiliation(s)
- K. Kawashima
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, Japan
| | - H. Ogawa
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, Japan
| | - S. Komura
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, Japan
| | - T. Ishihara
- Innovative and Clinical Research Promotion Center, Gifu University Hospital, 1-1 Yanagido, Gifu, Japan
| | - Y. Yamaguchi
- Human Genetics Program, Sanford Burnham Prebys Medical Discovery Institute, 10901 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - H. Akiyama
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, Japan
| | - K. Matsumoto
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, Japan,Address correspondence and reprint requests to: K. Matsumoto, Department of Orthopedic Surgery, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, 501-1194, Japan. Tel.: 81-58-230-6333; Fax: 81-58-230-6334. (K. Matsumoto)
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Kataoka Y, Takeuchi A, Kobayashi H, Kikukawa K, Sato K, Akiyama H. [Surveillance of Chromium (VI) Concentrations in Mineral Water Products in 2018]. Shokuhin Eiseigaku Zasshi 2020; 61:72-76. [PMID: 32336712 DOI: 10.3358/shokueishi.61.72] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
We used ion chromatography with post column derivatization to measure chromium (VI) concentrations in 155 mineral water (MW) products purchased from markets in Japan in 2018. Chromium (VI) recovery in spiked samples of the 155 MW products ranged from 95 to 106%, suggesting that this method is well suited for ensuring that MW products meet the requisite health and food safety standards. Chromium (VI) levels were above detection limits in 54 of the MW products, giving a total detection rate of 35%. The minimum and maximum chromium (VI) concentrations in all of the MW products were 0.0001 mg/L and 0.045 mg/L, respectively. The median chromium (VI) concentration was 0.0003 mg/L, with most MW products having chromium (VI) concentrations in the range of 0.0001 to 0.0002 mg/L. None of the MW products had chromium (VI) concentrations that exceeded the current standard value (0.05 mg/L) for MW in Japan.
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Saito-Shida S, Nagata M, Nemoto S, Akiyama H. Quantitative analysis of pesticide residues in tea by gas chromatography–tandem mass spectrometry with atmospheric pressure chemical ionization. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1143:122057. [DOI: 10.1016/j.jchromb.2020.122057] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 01/14/2020] [Accepted: 03/10/2020] [Indexed: 10/24/2022]
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Tsutsumi T, Adachi R, Matsuda R, Watanabe T, Teshima R, Akiyama H. Concentrations of Polycyclic Aromatic Hydrocarbons in Smoked Foods in Japan. J Food Prot 2020; 83:692-701. [PMID: 31855450 DOI: 10.4315/jfp-19-486] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 12/11/2019] [Indexed: 11/11/2022]
Abstract
ABSTRACT We evaluated the performance of a gas chromatography-tandem mass spectrometry method for quantifying 16 polycyclic aromatic hydrocarbons (PAHs), which the Scientific Committee on Food and the Joint Food and Agriculture Organization of the United Nations/World Health Organization Expert Committee on Food Additives have considered to be of concern to human health and used the method to determine the PAH concentrations in smoked foods. Eighty-seven samples of smoked fish, smoked meat, smoked eggs, dried bonito flakes, and dried bonito-related soup-stock products (disposable powder packets for infusion, instant bouillons, and liquids) were purchased in Japan to analyze their content of the 16 PAHs. Because of the low certainty of some results, the analytical values for some PAHs (e.g., benzo[c]fluorene, chrysene, and dibenzo[a,h]pyrene) are given for informational purposes only. The highest median concentrations of benzo[a]pyrene and the sum of all the 16 PAHs (29 and 760 μg/kg, respectively) were found in the disposable powder packets, followed by dried bonito flakes (24 and 512 μg/kg, respectively), and instant bouillons (11 and 227 μg/kg, respectively). These concentrations were much higher than those in the other products tested. We also investigated the percentages of the PAHs transferred from dried bonito flakes and a disposable powder packet to soup stocks commonly prepared at home. These were extremely low (<4%), even though they contained relatively high concentrations of the PAHs. Finally, the intake of benzo[a]pyrene and the sum of the intakes of four PAHs, as a marker proposed by the European Food Safety Authority, were estimated based on the data from a Japanese food consumption survey and the mean concentrations found in smoked fish and smoked fish products. These estimates suggest intakes of PAHs pose a low concern for consumer health. HIGHLIGHTS
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Affiliation(s)
- Tomoaki Tsutsumi
- Division of Foods, National Institute of Health Sciences, Tonomachi 3-25-26, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan.,(ORCID: https://orcid.org/0000-0002-6710-1303 [T.T.])
| | - Rika Adachi
- Division of Foods, National Institute of Health Sciences, Tonomachi 3-25-26, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan
| | - Rieko Matsuda
- Division of Foods, National Institute of Health Sciences, Tonomachi 3-25-26, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan
| | - Takahiro Watanabe
- Division of Foods, National Institute of Health Sciences, Tonomachi 3-25-26, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan
| | - Reiko Teshima
- Division of Foods, National Institute of Health Sciences, Tonomachi 3-25-26, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan
| | - Hiroshi Akiyama
- Division of Foods, National Institute of Health Sciences, Tonomachi 3-25-26, Kawasaki-ku, Kawasaki, Kanagawa 210-9501, Japan.,Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamada-oka Suita Osaka 565-0871, Japan
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