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Zhang KX, Dong N, Guo L. Characterization of the metabolites of dichotomitin in rat, monkey and human by ultra-high-performance liquid chromatography/high-resolution mass spectrometry. Rapid Commun Mass Spectrom 2021; 35:e9182. [PMID: 34418186 DOI: 10.1002/rcm.9182] [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] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/16/2021] [Accepted: 08/17/2021] [Indexed: 06/13/2023]
Abstract
RATIONALE Dichotomitin is one of the bioactive constituents isolated from Belamcanda chinensis. The goal of this study was to identify the metabolites of dichotomitin produced by liver microsomes and hepatocytes. METHODS Using ultra-high-performance liquid chromatography and high-resolution mass spectrometry (UPLC/HRMS), the metabolites were profiled and identified. The exact masses, elemental compositions and product ions of the metabolites were used to characterize their structures. RESULTS A total of ten metabolites were found and identified. The main metabolites identified in the incubation samples were M6 (3',5,6,7-tetrahydroxy-4',5'-dimethoxyisoflavone) and M8 (8-hydroxydichotomitin). Opening of 1,3-benzodioxole, demethylation, hydroxylation, glucuronidation and sulfation were among the metabolic modifications for dichotomitin. A human recombinant cytochrome P450 enzyme study revealed that CYP 1A2, 2C19, and 2D6 facilitated the formation of M6, whereas CYP 1A2 catalyzed the formation of M8 exclusively. CONCLUSIONS For the first time, data on the in vitro metabolic fates of dichotomitin were revealed in this work which would be helpful for us to understand the disposition of this bioactive constituent.
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Affiliation(s)
- Kai-Xuan Zhang
- Department of Clinical Laboratory, The First People's Hospital of Lianyungang, Lianyungang, Jiangsu Province, China
| | - Na Dong
- Department of Pharmacy, Hebei Women's Vocational College, Shijiazhuang, Hebei Province, China
| | - Le Guo
- Department of Pharmacy, Hebei Foreign Studies University, Shijiazhuang, Hebei Province, China
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Liyanage GSG, Inoue R, Fujitani M, Ishijima T, Shibutani T, Abe K, Kishida T, Okada S. Effects of Soy Isoflavones, Resistant Starch and Antibiotics on Polycystic Ovary Syndrome (PCOS)-Like Features in Letrozole-Treated Rats. Nutrients 2021; 13:nu13113759. [PMID: 34836015 PMCID: PMC8621859 DOI: 10.3390/nu13113759] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/20/2021] [Accepted: 10/20/2021] [Indexed: 12/21/2022] Open
Abstract
Polycystic ovary syndrome (PCOS) is the most common endocrine disorder in reproductive-aged women. Recently, various dietary interventions have been used extensively as a novel therapy against PCOS. In the present study, we show that soy isoflavone metabolites and resistant starch, together with gut microbiota modulations, were successful in decreasing the severity of PCOS-like reproductive features while increasing the expression of gut barrier markers and butyric acid in the gut. In the letrozole-induced PCOS model rats, the intake of both 0.05% soy isoflavones and 11% resistant starch, even with letrozole treatment, reduced the severity of menstrual irregularity and polycystic ovaries with a high concentration of soy isoflavones and equol in plasma. Antibiotic cocktail treatment suppressed soy isoflavone metabolism in the gut and showed no considerable effects on reducing the PCOS-like symptoms. The mRNA expression level of occludin significantly increased with soy isoflavone and resistant starch combined treatment. Bacterial genera such as Blautia, Dorea and Clostridium were positively correlated with menstrual irregularity under resistant starch intake. Moreover, the concentration of butyric acid was elevated by resistant starch intake. In conclusion, we propose that both dietary interventions and gut microbiota modulations could be effectively used in reducing the severity of PCOS reproductive features.
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Affiliation(s)
- Geethika S. G. Liyanage
- Food Functionality Laboratory, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan; (G.S.G.L.); (T.I.); (T.S.); (K.A.)
| | - Ryo Inoue
- Laboratory of Animal Science, Department of Applied Biological Sciences, Faculty of Agriculture, Setsunan University, Osaka 573-0101, Japan;
| | - Mina Fujitani
- Laboratory of Nutrition Science, Division of Applied Bioscience, Graduate School of Agriculture, Ehime University, Matsuyama 790-8566, Japan; (M.F.); (T.K.)
| | - Tomoko Ishijima
- Food Functionality Laboratory, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan; (G.S.G.L.); (T.I.); (T.S.); (K.A.)
| | - Taisei Shibutani
- Food Functionality Laboratory, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan; (G.S.G.L.); (T.I.); (T.S.); (K.A.)
| | - Keiko Abe
- Food Functionality Laboratory, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan; (G.S.G.L.); (T.I.); (T.S.); (K.A.)
- Kanagawa Institute of Industrial Science and Technology (KISTEC), 3-25-13 Tonomachi, Kawasaki-ku, Kawasaki 210-0821, Japan
| | - Taro Kishida
- Laboratory of Nutrition Science, Division of Applied Bioscience, Graduate School of Agriculture, Ehime University, Matsuyama 790-8566, Japan; (M.F.); (T.K.)
- Food and Health Sciences Research Centre, Graduate School of Agriculture, Ehime University, Matsuyama 790-8566, Japan
| | - Shinji Okada
- Food Functionality Laboratory, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan; (G.S.G.L.); (T.I.); (T.S.); (K.A.)
- Correspondence: ; Tel.: +81-3-5841-1127
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Jang HH, Noh H, Kim HW, Cho SY, Kim HJ, Lee SH, Lee SH, Gunter MJ, Ferrari P, Scalbert A, Freisling H, Kim JB, Choe JS, Kwon O. Metabolic tracking of isoflavones in soybean products and biosamples from healthy adults after fermented soybean consumption. Food Chem 2020; 330:127317. [PMID: 32569934 DOI: 10.1016/j.foodchem.2020.127317] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [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: 01/20/2020] [Revised: 05/27/2020] [Accepted: 06/09/2020] [Indexed: 12/18/2022]
Abstract
Fermentation may enhance the nutritional properties of foods by increasing metabolite bioactivity or bioavailability. This study explored the effect of fermentation on isoflavone bioavailability and metabolism. Isoflavone metabolites were tracked in foods and biospecimens of healthy adults after fermented soybean (FS) or non-fermented soybean (NFS) consumption in a randomized, controlled, crossover intervention study. The change in soybean isoflavones caused by fermentation resulted in faster absorption and higher bioavailability after consumption of FS. Although the urinary level of total isoflavone metabolites was similar after the consumption of the two diets, urinary genistein 7-O-sulfate was derived as a discriminant metabolite for the FS diet by partial least squares discriminant analysis. This study suggests that an isoflavone conjugate profile might be a more appropriate marker than total isoflavone levels for discriminating between the consumption of FS and NFS diets.
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Affiliation(s)
- Hwan-Hee Jang
- National Institute of Agricultural Sciences, Rural Development Administration, Wanju, South Korea; Department of Nutritional Science and Food Management, Ewha Womans University, Seoul, South Korea
| | - Hwayoung Noh
- Section of Nutrition and Metabolism, International Agency for Research on Cancer (IARC-WHO), Lyon, France
| | - Heon-Woong Kim
- National Institute of Agricultural Sciences, Rural Development Administration, Wanju, South Korea
| | - Su-Yeon Cho
- National Institute of Agricultural Sciences, Rural Development Administration, Wanju, South Korea
| | - Hyeon-Jeong Kim
- National Institute of Agricultural Sciences, Rural Development Administration, Wanju, South Korea
| | - Seon-Hye Lee
- National Institute of Agricultural Sciences, Rural Development Administration, Wanju, South Korea
| | - Sung-Hyen Lee
- National Institute of Agricultural Sciences, Rural Development Administration, Wanju, South Korea
| | - Marc J Gunter
- Section of Nutrition and Metabolism, International Agency for Research on Cancer (IARC-WHO), Lyon, France
| | - Pietro Ferrari
- Section of Nutrition and Metabolism, International Agency for Research on Cancer (IARC-WHO), Lyon, France
| | - Augustin Scalbert
- Section of Nutrition and Metabolism, International Agency for Research on Cancer (IARC-WHO), Lyon, France
| | - Heinz Freisling
- Section of Nutrition and Metabolism, International Agency for Research on Cancer (IARC-WHO), Lyon, France
| | - Jung-Bong Kim
- National Institute of Agricultural Sciences, Rural Development Administration, Wanju, South Korea
| | - Jeong-Sook Choe
- National Institute of Agricultural Sciences, Rural Development Administration, Wanju, South Korea.
| | - Oran Kwon
- Department of Nutritional Science and Food Management, Ewha Womans University, Seoul, South Korea.
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Helk O, Widhalm K. Effects of a low-fat dietary regimen enriched with soy in children affected with heterozygous familial hypercholesterolemia. Clin Nutr ESPEN 2020; 36:150-156. [PMID: 32220359 DOI: 10.1016/j.clnesp.2019.09.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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: 12/18/2018] [Revised: 07/22/2019] [Accepted: 09/06/2019] [Indexed: 11/25/2022]
Abstract
INTRODUCTION Familial hypercholesterolemia (FH) is an inheritable, autosomal dominant disorder leading to pathologically increased levels of low-density-lipoprotein cholesterol (LDL-C). Dietary treatment remains an important tool in the management of affected children even after the decision for the initiation of pharmacotherapy is made. However, little evidence is available regarding the optimal dietary regimen for the treatment of children affected with FH. METHODS We present results from a randomized controlled trial in paediatric patients affected with heterozygous FH, assessing the effect of a soy-enriched fat modified diet (soy group) compared to fat modified diet (Control group) alone on LDL-C over a period of 13 weeks. Furthermore, we monitored isoflavone levels in plasma and urine as markers of adherence to the dietary treatments. RESULTS LDL-C decrease was statistically significantly greater in the soy group compared to the control group at week 7 (Control group 176.3 ± 27.8 mg/dl, soy group 154.7 ± 29.2 mg/dl, p = 0.038), and showed a trend towards significant at week 13 (Control group 179.9 ± 41.8 mg/dl, soy group 155.0 ± 30.2 mg/dl, p = 0.089). Relative LDL-C decrease correlated significantly with the following plasma isoflavone concentrations measured in week 7: daidzein (p < 0.004, r = 0.576) and genistein (p < 0.017, r = 0.490). CONCLUSIONS We provide evidence from a small randomized-controlled trial for the effectiveness and safety of a dietary treatment with soy in paediatric patients affected with heterozygous FH. The decrease in LDL-C was highly correlated with isoflavone levels, further highlighting a direct effect of soy ingestion. This study was registered under ClinicalTrials.gov Identifier No. NCT03563547.
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Affiliation(s)
- Oliver Helk
- Division of Medicine III, Department of Nephrology and Dialysis, Medical University of Vienna, Austria
| | - Kurt Widhalm
- Austrian Academic Institute for Clinical Nutrition, Austria.
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Wang Q, Spenkelink B, Boonpawa R, Rietjens IMCM, Beekmann K. Use of Physiologically Based Kinetic Modeling to Predict Rat Gut Microbial Metabolism of the Isoflavone Daidzein to S-Equol and Its Consequences for ERα Activation. Mol Nutr Food Res 2020; 64:e1900912. [PMID: 32027771 PMCID: PMC7154660 DOI: 10.1002/mnfr.201900912] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 11/06/2019] [Indexed: 12/13/2022]
Abstract
SCOPE To predict gut microbial metabolism of xenobiotics and the resulting plasma concentrations of metabolites formed, an in vitro-in silico-based testing strategy is developed using the isoflavone daidzein and its gut microbial metabolite S-equol as model compounds. METHODS AND RESULTS Anaerobic rat fecal incubations are optimized and performed to derive the apparent maximum velocities (Vmax ) and Michaelis-Menten constants (Km ) for gut microbial conversion of daidzein to dihydrodaidzein, S-equol, and O-desmethylangolensin, which are input as parameters for a physiologically based kinetic (PBK) model. The inclusion of gut microbiota in the PBK model allows prediction of S-equol concentrations and slightly reduced predicted maximal daidzein concentrations from 2.19 to 2.16 µm. The resulting predicted concentrations of daidzein and S-equol are comparable to in vivo concentrations reported. CONCLUSION The optimized in vitro approach to quantify kinetics for gut microbial conversions, and the newly developed PBK model for rats that includes gut microbial metabolism, provide a unique tool to predict the in vivo consequences of daidzein microbial metabolism for systemic exposure of the host to daidzein and its metabolite S-equol. The predictions reveal a dominant role for daidzein in ERα-mediated estrogenicity despite the higher estrogenic potency of its microbial metabolite S-equol.
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Affiliation(s)
- Qianrui Wang
- Division of ToxicologyWageningen University and ResearchWageningen6708 WEThe Netherlands
| | - Bert Spenkelink
- Division of ToxicologyWageningen University and ResearchWageningen6708 WEThe Netherlands
| | - Rungnapa Boonpawa
- Faculty of Natural Resources and Agro‐IndustryKasetsart University Chalermphrakiat Sakon Nakhon Province CampusSakon Nakhon47000Thailand
| | | | - Karsten Beekmann
- Division of ToxicologyWageningen University and ResearchWageningen6708 WEThe Netherlands
- Present address:
Wageningen Food Safety ResearchP. O. Box 2306700 AEWageningenThe Netherlands
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Ding M, Ma W, Wang X, Chen S, Zou S, Wei J, Yang Y, Li J, Yang X, Wang H, Li Y, Wang Q, Mao H, Gao XM, Chang YX. A network pharmacology integrated pharmacokinetics strategy for uncovering pharmacological mechanism of compounds absorbed into the blood of Dan-Lou tablet on coronary heart disease. J Ethnopharmacol 2019; 242:112055. [PMID: 31276751 DOI: 10.1016/j.jep.2019.112055] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [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: 12/19/2018] [Revised: 07/01/2019] [Accepted: 07/01/2019] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Dan-Lou tablet (DLT) is developed from the traditional Chinese medicine (TCM) formula Gualou Xiebai Baijiu Tang which has been used for at least 2000 years in China. DLT has been widely used in clinical practice to treat cardiovascular diseases. AIM OF THE STUDY This study aimed to uncover the pharmacological mechanism of the compounds absorbed into the blood of Dan-Lou tablet (DLT) on coronary heart disease (CHD) using a network pharmacology integrated pharmacokinetics strategy. MATERIALS AND METHODS A rapid and sensitive method was developed for the simultaneous determination of the six compounds (puerarin, formononetin, calycosin, paeoniflorin, cryptotanshinone and tanshinone IIA) in rat plasma by liquid chromatography tandem mass spectrometry (LC-MS/MS). Then, the pharmacology network was established based on the relationship between five compounds absorbed into the blood targets (puerarin, formononetin, calycosin, cryptotanshinone and tanshinone IIA) and CHD targets. RESULTS The intra-and inter-day precision were less than 11% and the accuracy ranged from 88.2% to 112%, which demonstrated that the LC-MS/MS method could be used to evaluate the pharmacokinetic feature of the six compounds in rats after oral administration of DLT. The pathway enrichment analysis revealed that the significant bioprocess networks of DLT on CHD were positive regulation of estradiol secretion, negative regulation of transcription from RNA polymerase II promoter, lipopolysaccharide-mediated signaling pathway and cytokine activity. CONCLUSION The proposed network pharmacology integrated pharmacokinetics strategy provides a combination method to explore the therapeutic mechanism of the compounds absorbed into the blood of multi-component drugs on a systematic level.
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Affiliation(s)
- Mingya Ding
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China; Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Wenfang Ma
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China; Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Xiaoyan Wang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Shujing Chen
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Shuhan Zou
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Jinna Wei
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Yuqiao Yang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Jin Li
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China; Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Xuejing Yang
- School of Pharmacy, Harbin University of Commerce, Harbin, 150076, Heilongjiang, PR China.
| | - Hui Wang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China; Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Yuhong Li
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Qilong Wang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Haoping Mao
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Xiu-Mei Gao
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China; Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Yan-Xu Chang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China; Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
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Rao T, Gong YF, Peng JB, Wang YC, He K, Zhou HH, Tan ZR, Lv LZ. Comparative pharmacokinetic study on three formulations of Astragali Radix by an LC-MS/MS method for determination of formononetin in human plasma. Biomed Chromatogr 2019; 33:e4563. [PMID: 31025385 DOI: 10.1002/bmc.4563] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 01/06/2019] [Revised: 04/01/2019] [Accepted: 04/17/2019] [Indexed: 12/11/2022]
Abstract
Astragali Radix (AR) is a widely used traditional Chinese medicine for healing the cardiovascular, liver and immune systems. Recently, superfine pulverizing technology has been applied to developing novel formulations to improve bioavailability of the active constituents in herbs, such as ultrafine granular powder of AR. In this study, a universal and sensitive quantitative method based on LC-MS/MS was employed for determining formononetin, the main flavonoid in AR, in human plasma for comparative pharmacokinetics of three oral formulations of AR. Formononetin and IS (quercetin) were extracted by ethyl acetate from human plasma and were separated on a C18 column with a mobile phase consisting of acetonitrile and 0.1% formic acid. Positive-ion electrospray-ionization mode was applied in mass spectrometric detection. The quantitative method was validated with regards to selectivity, linearity, accuracy and precision, matrix effect, extraction recovery and stability, and was applied to comparing the pharmacokinetics of ultrafine granular powder (UGP), ultrafine powder (UP) and traditional decoction pieces (TDP) of AR after oral administration. The peak concentration and areas under the concentration-time curve of formononetin in UGP and UP were significantly higher than those of TDP. UGP and UP could significantly improve the bioavailability of AR in human compared with TDP after oral administration.
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Affiliation(s)
- Tai Rao
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha, China
- Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Changsha, China
| | - Yu-Feng Gong
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha, China
- Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Changsha, China
| | - Jing-Bo Peng
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha, China
- Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Changsha, China
| | - Yi-Cheng Wang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha, China
- Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Changsha, China
| | - Kang He
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha, China
- Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Changsha, China
| | - Hong-Hao Zhou
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha, China
- Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Changsha, China
| | - Zhi-Rong Tan
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha, China
- Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Changsha, China
| | - Li-Zhi Lv
- Department of Cardiothoracic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
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8
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Perez‐Cornago A, Appleby PN, Boeing H, Gil L, Kyrø C, Ricceri F, Murphy N, Trichopoulou A, Tsilidis KK, Khaw K, Luben RN, Gislefoss RE, Langseth H, Drake I, Sonestedt E, Wallström P, Stattin P, Johansson A, Landberg R, Nilsson LM, Ozasa K, Tamakoshi A, Mikami K, Kubo T, Sawada N, Tsugane S, Key TJ, Allen NE, Travis RC. Circulating isoflavone and lignan concentrations and prostate cancer risk: a meta-analysis of individual participant data from seven prospective studies including 2,828 cases and 5,593 controls. Int J Cancer 2018; 143:2677-2686. [PMID: 29971774 PMCID: PMC6283047 DOI: 10.1002/ijc.31640] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 05/03/2018] [Accepted: 05/07/2018] [Indexed: 11/07/2022]
Abstract
Phytoestrogens may influence prostate cancer development. This study aimed to examine the association between prediagnostic circulating concentrations of isoflavones (genistein, daidzein, equol) and lignans (enterolactone and enterodiol) and the risk of prostate cancer. Individual participant data were available from seven prospective studies (two studies from Japan with 241 cases and 503 controls and five studies from Europe with 2,828 cases and 5,593 controls). Because of the large difference in circulating isoflavone concentrations between Japan and Europe, analyses of the associations of isoflavone concentrations and prostate cancer risk were evaluated separately. Prostate cancer risk by study-specific fourths of circulating concentrations of each phytoestrogen was estimated using multivariable-adjusted conditional logistic regression. In men from Japan, those with high compared to low circulating equol concentrations had a lower risk of prostate cancer (multivariable-adjusted OR for upper quartile [Q4] vs. Q1 = 0.61, 95% confidence interval [CI] = 0.39-0.97), although there was no significant trend (OR per 75 percentile increase = 0.69, 95 CI = 0.46-1.05, ptrend = 0.085); Genistein and daidzein concentrations were not significantly associated with risk (ORs for Q4 vs. Q1 = 0.70, 0.45-1.10 and 0.71, 0.45-1.12, respectively). In men from Europe, circulating concentrations of genistein, daidzein and equol were not associated with risk. Circulating lignan concentrations were not associated with the risk of prostate cancer, overall or by disease aggressiveness or time to diagnosis. There was no strong evidence that prediagnostic circulating concentrations of isoflavones or lignans are associated with prostate cancer risk, although further research is warranted in populations where isoflavone intakes are high.
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Affiliation(s)
- Aurora Perez‐Cornago
- Cancer Epidemiology Unit, Nuffield Department of Population HealthUniversity of OxfordOxfordUnited Kingdom
| | - Paul N. Appleby
- Cancer Epidemiology Unit, Nuffield Department of Population HealthUniversity of OxfordOxfordUnited Kingdom
| | - Heiner Boeing
- Department of EpidemiologyGerman Institute of Human Nutrition Potsdam‐RehbrückeNuthetalGermany
| | - Leire Gil
- Public Health Division of Gipuzkoa‐BIODONOSTIABasque Regional Health DepartmentSan SebastianSpain
- CIBER of Epidemiology and Public HealthMadridSpain
| | - Cecilie Kyrø
- Danish Cancer Society Research Center, Strandboulevarden 49CopenhagenDenmark
| | - Fulvio Ricceri
- Department of Clinical and Biological SciencesUniversity of TurinTurinItaly
- Unit of EpidemiologyRegional Health Service ASL TO3GrugliascoItaly
| | - Neil Murphy
- Section of Nutrition and MetabolismInternational Agency for Research on CancerLyonFrance
| | | | - Konstantinos K. Tsilidis
- Department of Epidemiology and BiostatisticsSchool of Public Health, Imperial College LondonLondonUnited Kingdom
- Department of Hygiene and EpidemiologyUniversity of Ioannina School of MedicineIoanninaGreece
| | - Kay‐Tee Khaw
- Department of Public Health and Primary CareUniversity of CambridgeCambridgeUnited Kingdom
| | - Robert N. Luben
- Department of Public Health and Primary CareUniversity of CambridgeCambridgeUnited Kingdom
| | | | - Hilde Langseth
- Department of ResearchCancer Registry of NorwayOsloNorway
| | - Isabel Drake
- Department of Clinical Sciences in MalmöLund UniversityMalmöSweden
| | - Emily Sonestedt
- Department of Clinical Sciences in MalmöLund UniversityMalmöSweden
| | - Peter Wallström
- Department of Clinical Sciences in MalmöLund UniversityMalmöSweden
- Clinical Research CentreSkåne University HospitalMalmöSweden
| | - Pär Stattin
- Department of Surgical SciencesUppsala UniversityUppsalaSweden
| | - Anders Johansson
- Nutritional Research and Molecular PeriodontologyUmeå UniversityUmeöSweden
| | - Rikard Landberg
- Department of Biology and Biological EngineeringFood and Nutrition Science, Chalmers University of TechnologyGothenburgSweden
- Department of Public Health and Clinical MedicineNutritional Research, Umeå UniversityUmeåSweden
| | - Lena Maria Nilsson
- Department of Public Health and Clinical MedicineNutritional Research, Umeå UniversityUmeåSweden
- Arctic Research Centre, Umeå UniversityUmeåSweden
| | - Kotaro Ozasa
- Department of EpidemiologyRadiation Effects Research FoundationMinami‐kuHiroshimaJapan
| | - Akiko Tamakoshi
- Department of Public HealthHokkaido University Graduate School of MedicineKita‐kuSapporoJapan
| | - Kazuya Mikami
- Department of UrologyKyoto Prefectural University of Medicine Graduate School of Medical ScienceKamikgyo‐kuKyotoJapan
| | - Tatsuhiko Kubo
- Department of Preventive Medicine and Community HealthUniversity of Occupational and Environmental HealthYahatanishi‐kuKitakyushuJapan
| | - Norie Sawada
- Epidemiology and Prevention GroupCenter for Public Health Sciences, National Cancer CenterTokyoJapan
| | - Shoichiro Tsugane
- Epidemiology and Prevention GroupCenter for Public Health Sciences, National Cancer CenterTokyoJapan
| | - Timothy J. Key
- Cancer Epidemiology Unit, Nuffield Department of Population HealthUniversity of OxfordOxfordUnited Kingdom
| | - Naomi E. Allen
- Clinical Trial Service Unit, Nuffield Department of Population HealthBig Data Institute, University of OxfordOxfordUnited Kingdom
- Epidemiological Studies Unit, Nuffield Department of Population HealthBig Data Institute, University of OxfordOxfordUnited Kingdom
| | - Ruth C. Travis
- Cancer Epidemiology Unit, Nuffield Department of Population HealthUniversity of OxfordOxfordUnited Kingdom
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9
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Yao Y, Ma X, Li T, Guo H, Chang R, Liu J, Liu Q, Hao H, Huang T, Chen W, Wen J, Zhou T. Quantification of isoflavone glycosides and aglycones in rat plasma by LC-MS/MS: Troubleshooting of interference from food and its application to pharmacokinetic study of Semen Sojae Praeparatum extract. J Pharm Biomed Anal 2018; 161:444-454. [PMID: 30216793 DOI: 10.1016/j.jpba.2018.09.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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: 04/06/2018] [Revised: 08/06/2018] [Accepted: 09/03/2018] [Indexed: 11/29/2022]
Abstract
The isoflavones widely exist in the daily diets and interferences are usually inevitable in the determination of the in vivo level of the same analytes. A new strategy to eliminate the dietary interference was established to evaluate the exposure of isoflavones including daidzin, glycitin, genistin, daidzein, glycitein, and genistein in rats fed with Semen Sojae Praeparatum (SSP) extract. Plasma samples were pretreated by liquid-liquid extraction with ethyl acetate using quercetin as the internal standard (IS). The chromatographic separation was achieved on a Symmetry C18 column (100 mm × 3.0 mm) using a gradient mobile phase consisting of acetonitril and water (containing 0.1% formic acid) with a run time of 13.0 min at a flow rate of 0.4ml/min. The detection was carried out by a triple-quadrupole tandem mass spectrometer in multiple reaction monitoring (MRM) mode via polarity switching between negative (for and positive (for daidzin glycitin) ionization mode. All calibration curves exhibited good linearity (r> 0.99) over a wide concentration range for all components. The lower limit of quantitation (LLOQ) was in the range of 0.1-0.4 ng/ml. The intra-day and inter-day precisions (RSD) at three different levels were both less than 14.9% and the accuracies (RE) ranged from -9.3% to 14.5%. The extraction recoveries of the analytes and the IS ranged from 85.7% to 100.2%. The validated method was first successfully applied to pharmacokinetic study of the six isoflavones in rat plasma after oral administration of SSP extract. The dynamic baseline levels of six isoflavones in blank plasma from rats consuming food containing dietary isoflavones were measured for the correction of the plasma concentrations. The principle pharmacokinetic parameters were calculated from rats with or without regular commercial food, and found to be altered by the dietary food containing some isoflavones.
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Affiliation(s)
- Yuan Yao
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China; Shanghai Key Laboratory for Pharmaceutical Metabolite Research, School of Pharmacy, Second Military Medical University, Shanghai 200433, China; School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230031, China
| | - Xin Ma
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China; Shanghai Key Laboratory for Pharmaceutical Metabolite Research, School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Teng Li
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China; Shanghai Key Laboratory for Pharmaceutical Metabolite Research, School of Pharmacy, Second Military Medical University, Shanghai 200433, China; 92154 Military Hospital, Yantai 264680, China
| | - Hui Guo
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China; Shanghai Key Laboratory for Pharmaceutical Metabolite Research, School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Ruirui Chang
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China; Shanghai Key Laboratory for Pharmaceutical Metabolite Research, School of Pharmacy, Second Military Medical University, Shanghai 200433, China; School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230031, China
| | - Jialin Liu
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China; Shanghai Key Laboratory for Pharmaceutical Metabolite Research, School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Qiaoxia Liu
- Shimadzu China Co.LTD., Shanghai 200233, China
| | | | | | - Weidong Chen
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230031, China.
| | - Jun Wen
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China; Shanghai Key Laboratory for Pharmaceutical Metabolite Research, School of Pharmacy, Second Military Medical University, Shanghai 200433, China.
| | - Tingting Zhou
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China; Shanghai Key Laboratory for Pharmaceutical Metabolite Research, School of Pharmacy, Second Military Medical University, Shanghai 200433, China.
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10
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Lee DH, Kim MJ, Park SH, Song EJ, Nam YD, Ahn J, Jang YJ, Ha TY, Jung CH. Bioavailability of Isoflavone Metabolites After Korean Fermented Soybean Paste (Doenjang) Ingestion in Estrogen-Deficient Rats. J Food Sci 2018; 83:2212-2221. [PMID: 30035387 DOI: 10.1111/1750-3841.14214] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [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: 01/24/2018] [Revised: 05/14/2018] [Accepted: 05/20/2018] [Indexed: 12/20/2022]
Abstract
Doenjang (DJ), a fermented soybean product used in soups, stews, and sauces, contains high quality proteins, fats, vitamins, minerals, and other functional ingredients, including isoflavones and saponins. This study investigated whether DJ improves the bioavailability of isoflavones compared to boiled soybean (BS) in sham-operated or ovariectomized (OVX) rats. We also examined the effects of ovariectomy on the differences in bioavailability of isoflavones. BS and DJ were administered in sham-operated and OVX rats, and blood samples were collected. Twenty-six isoflavone-derived metabolites were identified. Pharmacokinetic analysis revealed that T1/2 values of the individual isoflavone metabolites were most different in sham and OVX rats, even after the same sample treatment; however, Tmax values were significant different in a few metabolites such as daidzein 4'-glucuronide, daidzein 4'-sulfate, 2-(4-hydroxyphenyl)propionic acid, and benzoic acid. For most of the individual metabolites, Cmax was higher in both sham and OVX rats administered BS than those administered DJ. The AUC was generally lower in OVX rats than in sham rats. The AUC of daidzein and genistein in BS-fed sham rats was approximately 1.7-fold higher than those administered DJ, whereas glycitein was detected only in the DJ group. No significant differences in AUC of daidzein and genistein were observed between BS and DJ administration in OVX rats, although the total isoflavone content of DJ was lower; thus, DJ-mediated isoflavone bioavailability was more effective in OVX rats. Similar tendencies were observed for phase II and gut-mediated metabolites. These results suggested that DJ enhanced isoflavone bioavailability under estrogen deficiency, even when the total isoflavone content was decreased by fermentation.
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Affiliation(s)
- Da-Hye Lee
- Research Group of Metabolic Mechanism, Korea Food Research Inst., Wanju-gun, Jeonbuk 55365, Republic of Korea
- Dept. of Food Biotechnology, Korea Univ. of Science and Technology, Wanju-gun, Jeonbuk 55365, Republic of Korea
| | - Min Jung Kim
- Research Group of Metabolic Mechanism, Korea Food Research Inst., Wanju-gun, Jeonbuk 55365, Republic of Korea
| | - So-Hyun Park
- Research Group of Metabolic Mechanism, Korea Food Research Inst., Wanju-gun, Jeonbuk 55365, Republic of Korea
- Dept. of Food Biotechnology, Korea Univ. of Science and Technology, Wanju-gun, Jeonbuk 55365, Republic of Korea
| | - Eun-Ji Song
- Research Group of Gut Microbiome, Korea Food Research Inst., Wanju-gun, Jeonbuk 55365, Republic of Korea
| | - Yong-Do Nam
- Research Group of Gut Microbiome, Korea Food Research Inst., Wanju-gun, Jeonbuk 55365, Republic of Korea
| | - Jiyun Ahn
- Research Group of Metabolic Mechanism, Korea Food Research Inst., Wanju-gun, Jeonbuk 55365, Republic of Korea
- Dept. of Food Biotechnology, Korea Univ. of Science and Technology, Wanju-gun, Jeonbuk 55365, Republic of Korea
| | - Young-Jin Jang
- Research Group of Metabolic Mechanism, Korea Food Research Inst., Wanju-gun, Jeonbuk 55365, Republic of Korea
| | - Tae-Youl Ha
- Research Group of Metabolic Mechanism, Korea Food Research Inst., Wanju-gun, Jeonbuk 55365, Republic of Korea
- Dept. of Food Biotechnology, Korea Univ. of Science and Technology, Wanju-gun, Jeonbuk 55365, Republic of Korea
| | - Chang Hwa Jung
- Research Group of Metabolic Mechanism, Korea Food Research Inst., Wanju-gun, Jeonbuk 55365, Republic of Korea
- Dept. of Food Biotechnology, Korea Univ. of Science and Technology, Wanju-gun, Jeonbuk 55365, Republic of Korea
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11
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Nguyen CT, Pham NM, Do VV, Binns CW, Hoang VM, Dang DA, Lee AH. Soyfood and isoflavone intake and risk of type 2 diabetes in Vietnamese adults. Eur J Clin Nutr 2017; 71:1186-1192. [PMID: 28488690 DOI: 10.1038/ejcn.2017.76] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [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: 11/10/2016] [Revised: 04/11/2017] [Accepted: 04/13/2017] [Indexed: 12/11/2022]
Abstract
BACKGROUND/OBJECTIVES Animal studies have demonstrated that soy isoflavones exert antidiabetic effects. However, evidence regarding the association between soyfood intake, a unique source of isoflavones, and type 2 diabetes remains inconclusive. This study assessed the relationship between habitual intakes of soyfoods and major isoflavones and risk of type 2 diabetes in Vietnamese adults. SUBJECTS/METHODS A hospital-based case-control study was conducted in Vietnam during 2013-2015. A total of 599 newly diagnosed diabetic cases (age 40-65 years) and 599 hospital-based controls, frequency matched by age and sex, were recruited in Hanoi, capital city of Vietnam. Information on frequency and quantity of soyfood and isoflavone intake, together with demographics, habitual diet and lifestyle characteristics, was obtained from direct interviews using a validated and reliable questionnaire. Unconditional logistic regression analyses were performed to examine the association between soy variables and type 2 diabetes risk. RESULTS Higher intake of total soyfoods was significantly associated with a lower risk of type 2 diabetes; the adjusted odds ratio (OR) for the highest versus the lowest intake was 0.31 (95% confidence interval (CI): 0.21-0.46; P<0.001). An inverse dose-response relationship of similar magnitude was also observed for total isoflavone intake (OR: 0.35; 95% CI: 0.24 to 0.49; P<0.001). In addition, inverse associations of specific soyfoods (soy milk, tofu and mung bean sprout) and major isoflavones (daidzein, genistein and glycitein) with the type 2 diabetes risk were evident. CONCLUSIONS Soyfood and isoflavone intake was associated with a lower type 2 diabetes risk in Vietnamese adults.
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Affiliation(s)
- C T Nguyen
- School of Public Health, Curtin University, Perth, WA, Australia
- National Institute of Hygiene and Epidemiology, Hanoi, Vietnam
| | - N M Pham
- School of Public Health, Curtin University, Perth, WA, Australia
- Thai Nguyen University of Medicine and Pharmacy, Thai Nguyen, Vietnam
| | - V V Do
- School of Public Health, Curtin University, Perth, WA, Australia
| | - C W Binns
- School of Public Health, Curtin University, Perth, WA, Australia
| | - V M Hoang
- Hanoi University of Public Health, Hanoi, Vietnam
| | - D A Dang
- National Institute of Hygiene and Epidemiology, Hanoi, Vietnam
| | - A H Lee
- School of Public Health, Curtin University, Perth, WA, Australia
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12
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Shi R, Dai X, Li W, Lu F, Liu Y, Qu H, Li H, Chen Q, Tian H, Wu E, Wang Y, Zhou R, Lee ST, Lifshitz Y, Kang Z, Liu J. Hydroxyl-Group-Dominated Graphite Dots Reshape Laser Desorption/Ionization Mass Spectrometry for Small Biomolecular Analysis and Imaging. ACS Nano 2017; 11:9500-9513. [PMID: 28850220 DOI: 10.1021/acsnano.7b05328] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [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: 05/24/2023]
Abstract
Small molecules play critical roles in life science, yet their facile detection and imaging in physiological or pathological settings remain a challenge. Matrix-assisted laser desorption ionization mass spectrometry (MALDI MS) is a powerful tool for molecular analysis. However, conventional organic matrices (CHCA, DHB, etc.) used in assisting analyte ionization suffer from intensive background noise in the mass region below m/z 700, which hinders MALDI MS applications for small-molecule detection. Here, we report that a hydroxyl-group-dominated graphite dot (GD) matrix overcomes limitations of conventional matrices and allows MALDI MS to be used in fast and high-throughput analysis of small biomolecules. GDs exhibit extremely low background noise and ultrahigh sensitivity (with limit of detection <1 fmol) in MALDI MS. This approach allows identification of complex oligosaccharides, detection of low-molecular-weight components in traditional Chinese herbs, and facile analysis of puerarin and its metabolites in serum without purification. Moreover, we show that the GDs provide an effective matrix for the direct imaging or spatiotemporal mapping of small molecules and their metabolites (m/z < 700) simultaneously at the suborgan tissue level. Density functional theory calculations further provide the mechanistic basis of GDs as an effective MALDI matrix in both the positive-ion and negative-ion modes. Collectively, our work uncovered a useful matrix which reshapes MALDI MS technology for a wide range of applications in biology and medicine.
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Affiliation(s)
| | | | | | - Fang Lu
- School of Basic Medical Sciences, Beijing University of Chinese Medicine , Beijing 100029, China
| | | | - Huihua Qu
- School of Basic Medical Sciences, Beijing University of Chinese Medicine , Beijing 100029, China
| | | | - Qiongyang Chen
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University , Hangzhou, Zhejiang Province 310027, China
| | - He Tian
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University , Hangzhou, Zhejiang Province 310027, China
| | | | - Yong Wang
- College of Life Science and Oceanography, Shenzhen Key Laboratory of Marine Bioresources and Ecology, Shenzhen University , Shenzhen, Guangdong Province 518060, China
| | - Ruhong Zhou
- Department of Chemistry, Columbia University , New York, New York 10027, United States
| | | | - Yeshayahu Lifshitz
- Department of Materials Science and Engineering, Technion Israel Institute of Technology , Haifa 3200003, Israel
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13
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Xiao B, Sun Z, Sun SY, Dong J, Li Y, Gao S, Pang J, Chang Q. Effect of cortex mori on pharmacokinetic profiles of main isoflavonoids from pueraria lobata in rat plasma. J Ethnopharmacol 2017; 209:140-146. [PMID: 28739387 DOI: 10.1016/j.jep.2017.07.035] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [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: 01/22/2017] [Revised: 07/10/2017] [Accepted: 07/21/2017] [Indexed: 06/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Radix pueraria (the root of pueraria lobata (Wild.) Ohwi.), which contains a class of isoflavonoids as the main active components, as well as cortex mori (the root bark of Morus alba L), which contains abundant active alkaloids, have been employed for the treatment of diabetes in traditional Chinese medicine for centuries. In previous studies, pharmacodynamic synergistic reactions have been observed in compatible application of pueraria lobata isoflavonoids extracts (PLF) and cortex mori alkaloids extracts (CME) for inhibiting α-glycosidase activity. It has also been demonstrated that PLF can effectively slow down the absorption of active alkaloid from CME, so as to produce a higher effective concentration in small intestine for depressing the elevation of postprandial blood glucose through inhibiting α-glycosidase activity. AIM OF THE STUDY In this study, the hypoglycemic effect of PLF, CME or CME-PLF mixture (the mixture of CME and PLF at a ratio of 1:6.3) was further evaluated through in vivo glucose tolerance studies. And the effect of CME on pharmacokinetic profiles of main isoflavonoids from PLF in rat plasma was investigated to further underlie compatibility mechanism of the two herbs. MATERIALS AND METHODS Four groups of rats received an oral dose of starch solution alone or simultaneously with drugs by gavage feeding. The blood samples were collected to determine glucose concentrations by glucose oxidase method. In addition, another two groups of rats were orally administered with PLF or CME-PLF. The plasma samples were collected and assayed using an LC/MS/MS method for comparatively pharmacokinetic studies of five main isoflavonoids. RESULTS For starch loading, co-administration of CME-PLF resulted in more potent inhibition effects on glucose responses compared to those by CME or PLF in rat. The isoflavonoids from PLF were rapidly absorbed, presenting similarly low concentrations in plasma. When CME was added, the Cmax and AUC of all the five isoflavonoids were increased. A phenomenon of double peaks was found for all analysts. The elimination rates of all the detected isoflavonoids were also slowed down with extension of t1/2. CONCLUSIONS: CME has been found to increase the absorption and delay the elimination of main isoflavonoids from PLF, which might result in higher concentrations of circulating active compounds for anti diabetes.
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Affiliation(s)
- Bingxin Xiao
- The First People's Hospital of Lianyungang, Lianyungang 222002, PR China; Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences&Peking Union Medical College, Beijing 100193, PR China
| | - Zengxian Sun
- The First People's Hospital of Lianyungang, Lianyungang 222002, PR China
| | - Shu Yang Sun
- Overseas Education College, Nanjing Tech University, Nanjing 211816, PR China
| | - Jie Dong
- The First People's Hospital of Lianyungang, Lianyungang 222002, PR China
| | - Yanli Li
- The First People's Hospital of Lianyungang, Lianyungang 222002, PR China
| | - Shan Gao
- The First People's Hospital of Lianyungang, Lianyungang 222002, PR China
| | - Jie Pang
- The First People's Hospital of Lianyungang, Lianyungang 222002, PR China
| | - Qi Chang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences&Peking Union Medical College, Beijing 100193, PR China.
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14
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Shao Y, Zhang W, Tong L, Huang J, Li D, Nie W, Zhu Y, Li Y, Lu T. Simultaneous determination of eight bioactive components of Qishen Yiqi dripping pills in rat plasma using UFLC-MS/MS and its application to a pharmacokinetic study. Biomed Chromatogr 2017; 31. [PMID: 28146302 DOI: 10.1002/bmc.3941] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [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: 09/25/2016] [Revised: 01/15/2017] [Accepted: 01/29/2017] [Indexed: 12/16/2023]
Abstract
In this study, a rapid and reliable ultra-fast liquid chromatography-tandem mass spectrometry method was developed and validated for the simultaneous determination of eight active ingredients, including astragaloside IV, ononin, tanshinol, protocatechualdehyde, protocatechuic acid, salvianolic acid D, rosmarinic acid and ginsenoside Rg1 , in rat plasma. The plasma samples were pretreated by protein precipitation with acetonitrile. Chromatographic separation was performed on a Waters Acquity UPLC® BEH C18 column (1.7 μm particles, 2.1 × 100 mm). The mobile phase consisted of 0.1% aqueous formic acid (A)-acetonitrile with 0.1% formic acid (B) at a flow rate of 0.4 mL/min. Quantification was performed on a triple quadruple tandem mass spectrometry with electrospray ionization by multiple reaction monitoring both in the negative and in the positive ion mode. The lower limit of quantification of tanshinol was 2.0 ng/mL and the others were 5.0 ng/mL. The extraction recoveries, matrix effects, intra- and inter-day precision and accuracy of eight tested components were all within acceptable limits. The validated method was successfully applied to the pharmacokinetic study of the eight active constituents after intragastric administration of three doses (1.0, 3.0, 6.0 g/kg body weight) of Qishen Yiqi Dripping Pills to rats.
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Affiliation(s)
- Yaping Shao
- School of Pharmacy, China Pharmaceutical University, Nanjing, People's Republic of China
| | - Wen Zhang
- Tasly Academy, Tianjin Tasly Holding Group Co. Ltd, Tianjin, People's Republic of China
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, People's Republic of China
- Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology and Medicine, Tianjin, People's Republic of China
| | - Ling Tong
- Tasly Academy, Tianjin Tasly Holding Group Co. Ltd, Tianjin, People's Republic of China
| | - Jingyi Huang
- Tasly Academy, Tianjin Tasly Holding Group Co. Ltd, Tianjin, People's Republic of China
| | - Dongxiang Li
- Tasly Academy, Tianjin Tasly Holding Group Co. Ltd, Tianjin, People's Republic of China
| | - Wei Nie
- Tasly Academy, Tianjin Tasly Holding Group Co. Ltd, Tianjin, People's Republic of China
| | - Yan Zhu
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, People's Republic of China
- Research and Development Center of TCM, Tianjin International Joint Academy of Biotechnology and Medicine, Tianjin, People's Republic of China
| | - Yunfei Li
- Tasly Academy, Tianjin Tasly Holding Group Co. Ltd, Tianjin, People's Republic of China
| | - Tao Lu
- School of Pharmacy, China Pharmaceutical University, Nanjing, People's Republic of China
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15
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Zhang X, Cook KL, Warri A, Cruz IM, Rosim M, Riskin J, Helferich W, Doerge D, Clarke R, Hilakivi-Clarke L. Lifetime Genistein Intake Increases the Response of Mammary Tumors to Tamoxifen in Rats. Clin Cancer Res 2017; 23:814-824. [PMID: 28148690 PMCID: PMC5654585 DOI: 10.1158/1078-0432.ccr-16-1735] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 10/07/2016] [Accepted: 10/11/2016] [Indexed: 12/21/2022]
Abstract
PURPOSE Whether it is safe for estrogen receptor-positive (ER+) patients with breast cancer to consume soy isoflavone genistein remains controversial. We compared the effects of genistein intake mimicking either Asian (lifetime) or Caucasian (adulthood) intake patterns to that of starting its intake during tamoxifen therapy using a preclinical model. EXPERIMENTAL DESIGN Female Sprague-Dawley rats were fed an AIN93G diet supplemented with 0 (control diet) or 500 ppm genistein from postnatal day 15 onward (lifetime genistein). Mammary tumors were induced with 7,12-dimethylbenz(a)anthracene (DMBA), after which a group of control diet-fed rats were switched to genistein diet (adult genistein). When the first tumor in a rat reached 1.4 cm in diameter, tamoxifen was added to the diet and a subset of previously only control diet-fed rats also started genistein intake (post-diagnosis genistein). RESULTS Lifetime genistein intake reduced de novo resistance to tamoxifen, compared with post-diagnosis genistein groups. Risk of recurrence was lower both in the lifetime and in the adult genistein groups than in the post-diagnosis genistein group. We observed downregulation of unfolded protein response (UPR) and autophagy-related genes (GRP78, IRE1α, ATF4, and Beclin-1) and genes linked to immunosuppression (TGFβ and Foxp3) and upregulation of cytotoxic T-cell marker CD8a in the tumors of the lifetime genistein group, compared with controls, post-diagnosis, and/or adult genistein groups. CONCLUSIONS Genistein intake mimicking Asian consumption patterns improved response of mammary tumors to tamoxifen therapy, and this effect was linked to reduced activity of UPR and prosurvival autophagy signaling and increased antitumor immunity. Clin Cancer Res; 23(3); 814-24. ©2017 AACR.
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Affiliation(s)
- Xiyuan Zhang
- Department of Oncology, Georgetown University, Washington, District of Columbia
| | - Katherine L Cook
- Department of Surgical Sciences, Wake Forest University, Winston-Salem, North Carolina
| | - Anni Warri
- Department of Oncology, Georgetown University, Washington, District of Columbia
- Institute of Biomedicine, University of Turku Medical Faculty, Turku, Finland
| | - Idalia M Cruz
- Department of Oncology, Georgetown University, Washington, District of Columbia
| | - Mariana Rosim
- Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Jeffrey Riskin
- Department of Oncology, Georgetown University, Washington, District of Columbia
| | - William Helferich
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Daniel Doerge
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, Arkansas
| | - Robert Clarke
- Department of Oncology, Georgetown University, Washington, District of Columbia
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16
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Müller DR, Soukup ST, Kurrat A, Liu X, Schmicke M, Xie MY, Kulling SE, Diel P. Neonatal isoflavone exposure interferes with the reproductive system of female Wistar rats. Toxicol Lett 2016; 262:39-48. [PMID: 27506417 DOI: 10.1016/j.toxlet.2016.08.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [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: 03/28/2016] [Revised: 07/29/2016] [Accepted: 08/05/2016] [Indexed: 12/20/2022]
Abstract
There is increasing concern about possible adverse effects of soy based infant formulas (SBIF) due to their high amount of isoflavones (ISO). The aim of the present study was to investigate effects of neonatal exposure to ISO on reproductive system of female Wistar rats. Animals were exposed to an ISO depleted diet or a diet enriched with an ISO extract (IRD; 508mg ISO/kg) during embryogenesis and adolescence. Pups of each group were fed daily by pipette with ISO-suspension (ISO+; 32mg ISO/kg bw) or placebo from postnatal day (PND) 1 until PND23 resulting in plasma concentrations similar to levels reported in infants fed SBIF. The visceral fat mass was reduced by long-term IRD. Vaginal epithelial height was increased at PND23 and vaginal opening was precocious in ISO+ groups. Later in life, more often irregular estrus cycles were observed in rats of ISO+ groups. In addition, FSH levels and uterine epithelial heights were increased at PND80 in ISO+ groups. In summary, the results indicate that neonatal ISO intake, resulting in plasma concentrations achievable through SBIF, has an estrogenic effect on prepubertal rats and influences female reproductive tract later in life.
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Affiliation(s)
- Dennis R Müller
- Institute of Cardiovascular Research and Sports Medicine, Department of Molecular and Cellular Sports Medicine, German Sport University, Cologne, Germany
| | - Sebastian T Soukup
- Department of Safety and Quality of Fruit and Vegetables, Max Rubner-Institut, Karlsruhe, Germany, Germany
| | - Anne Kurrat
- Institute of Cardiovascular Research and Sports Medicine, Department of Molecular and Cellular Sports Medicine, German Sport University, Cologne, Germany
| | - Xin Liu
- State Key Laboratory of Food Science and Technology, Nanchang University, China
| | - Marion Schmicke
- Clinic for Cattle, Endocrinology, University of Veterinary Medicine, Hannover, Germany
| | - Ming-Yong Xie
- State Key Laboratory of Food Science and Technology, Nanchang University, China
| | - Sabine E Kulling
- Department of Safety and Quality of Fruit and Vegetables, Max Rubner-Institut, Karlsruhe, Germany, Germany
| | - Patrick Diel
- Institute of Cardiovascular Research and Sports Medicine, Department of Molecular and Cellular Sports Medicine, German Sport University, Cologne, Germany.
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Soukup ST, Helppi J, Müller DR, Zierau O, Watzl B, Vollmer G, Diel P, Bub A, Kulling SE. Phase II metabolism of the soy isoflavones genistein and daidzein in humans, rats and mice: a cross-species and sex comparison. Arch Toxicol 2016; 90:1335-47. [PMID: 26838042 DOI: 10.1007/s00204-016-1663-5] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [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: 11/16/2015] [Accepted: 01/04/2016] [Indexed: 12/19/2022]
Abstract
Soy isoflavones (IF) are in the focus of biomedical research since more than two decades. To assess their bioactivity, IF are investigated in rats and mice as a model. As the biological activity of IF is affected by their biotransformation, our aim was to comprehensively compare the conjugative and microbial metabolism of daidzein and genistein in adult humans, rats and mice of both sexes. One identical soy extract and a validated LC-MS method were used for all studies. We detected considerable differences between the three species. In rats and mice, sex-specific differences were observed in addition. The major plasma phase II metabolites in humans were the 7-sulfo-4'-glucuronides (39-49 %) and, in case of genistein, also the diglucuronide (34 %), whereas in mice monosulfates (33-41 %) and monoglucuronides (30-40 %) predominated. In male rats the disulfates (23-62 %) and 7-sulfo-4'-glucuronides (19-54 %) were predominant, while in female rats the 7-glucuronides (81-93 %) exhibited highest concentrations. The portion of aglycones was low in humans (0.5-1.3 %) and rats (0.5-3.1 %) but comparatively high in mice (3.1-26.0 %), especially in the case of daidzein. Furthermore, substantial differences were observed between daidzein and genistein metabolism. In contrast to humans, all rats and mice were equol producer, independent of their sex. In conclusion, there are marked differences between humans, rats and mice in the profile of major metabolites following IF phase II metabolism. These differences may contribute to resolve inconsistencies in results concerning the bioactivity of IF and should be considered when applying findings of animal studies to humans, e.g., for risk assessment.
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Affiliation(s)
- Sebastian T Soukup
- Department of Safety and Quality of Fruit and Vegetables, Max Rubner-Institut, Haid-und-Neu-Straße 9, 76131, Karlsruhe, Germany
| | - Jussi Helppi
- Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany
| | - Dennis R Müller
- Department of Molecular and Cellular Sports Medicine, Institute for Cardiovascular Research and Sports Medicine, German Sport University, Cologne, Germany
| | - Oliver Zierau
- Molecular Cell Physiology and Endocrinology, Institute for Zoology, Technische Universität Dresden, Dresden, Germany
| | - Bernhard Watzl
- Department of Physiology and Biochemistry of Nutrition, Max Rubner-Institut, Karlsruhe, Germany
| | - Günter Vollmer
- Molecular Cell Physiology and Endocrinology, Institute for Zoology, Technische Universität Dresden, Dresden, Germany
| | - Patrick Diel
- Department of Molecular and Cellular Sports Medicine, Institute for Cardiovascular Research and Sports Medicine, German Sport University, Cologne, Germany
| | - Achim Bub
- Department of Physiology and Biochemistry of Nutrition, Max Rubner-Institut, Karlsruhe, Germany
| | - Sabine E Kulling
- Department of Safety and Quality of Fruit and Vegetables, Max Rubner-Institut, Haid-und-Neu-Straße 9, 76131, Karlsruhe, Germany.
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Xiao BX, Feng L, Cao FR, Pan RL, Liao YH, Liu XM, Chang Q. Pharmacokinetic profiles of the five isoflavonoids from Pueraria lobata roots in the CSF and plasma of rats. J Ethnopharmacol 2016; 184:22-29. [PMID: 26923541 DOI: 10.1016/j.jep.2016.02.027] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [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: 06/24/2015] [Revised: 12/07/2015] [Accepted: 02/21/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Traditional Chinese medicine Radix Puerariae, the roots of Pueraria lobata (Wild.) Ohwi., has been widely used for the treatment of cardiovascular and cerebrovascular diseases in China for centuries. Isoflavonoids are believed the active components of this herb. AIM OF THIS STUDY The present study aims to investigate the brain penetration and pharmacokinetics of five active isoflavonoids in the ventricular CSF and plasma of rats after intravenous administration of a Pueraria isoflavonoids (PIF) extract, to better understand the active components of this herb for neuro-activities. MATERIAL AND METHODS Under anesthesia condition, SD rats (n=6) were successively suffered two surgeries for implanting cannulas at lateral ventricle and right jugular vein for brain microdialysis and blood collection, respectively. After recovery, the rats received intravenous dose of PIF at 80mg/kg and the concentrations of puerarin (PU), 3'-methoxypuerarin (MPU), 3'-hydroxypuerarin (HPU), daidzein (DA) and daidzein-8-C-apiosyl-(1-6)-glycoside (DAC) in the ventricular dialysate and plasma samples were determined using a ultra-fast liquid chromatography tandem mass spectrometry method. RESULTS Complete concentration versus time profiles of the five components in plasma and four components except for HPU in ventricular CSF were obtained. After dosing, the average C0 values of PU, MPU, DA, DAC and HPU in plasma were estimated 6.53, 13.72, 1.54, 15.84 and 86.07µg/mL, and PU, MPU, DA and DAC were rapidly penetrated to the brain and reached to their Cmax of 521.52, 415.00, 74.34 and 380.03ng/mL in CSF at about 0.5-0.8h, respectively. The elimination t1/2 of PU, DA and DAC in CSF and plasma were no significant difference, while the t1/2 of MPU in ventricular CSF was longer than that in plasma which may attributable to the different physiological environment of central and peripheral compartments. The brain penetration index (AUCCSF/AUCplasma) was found to be about 9.29, 7.25, 11.96, and 4.21% for PU, MPU, DA, and DAC respectively. CONCLUSION PU, MPU, DA, DAC can quickly penetrate to the brain through the blood brain barrier (BBB) and might be responsible for the neuro-pharmacological activities of P. lobata.
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Affiliation(s)
- Bing-Xin Xiao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China; Department of Pharmacy, The First People's Hospital of Lianyungang, Lianyungang 222002, PR China
| | - Li Feng
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China
| | - Fang-Rui Cao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China
| | - Rui-Le Pan
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China
| | - Yong-Hong Liao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China
| | - Xin-Min Liu
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China
| | - Qi Chang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China.
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Ronis MJ, Gomez-Acevedo H, Blackburn ML, Cleves MA, Singhal R, Badger TM. Uterine responses to feeding soy protein isolate and treatment with 17β-estradiol differ in ovariectomized female rats. Toxicol Appl Pharmacol 2016; 297:68-80. [PMID: 26945725 DOI: 10.1016/j.taap.2016.02.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [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: 11/19/2015] [Revised: 02/19/2016] [Accepted: 02/22/2016] [Indexed: 12/23/2022]
Abstract
There are concerns regarding reproductive toxicity from consumption of soy foods, including an increased risk of endometriosis and endometrial cancer, as a result of phytoestrogen consumption. In this study, female rats were fed AIN-93G diets made with casein (CAS) or soy protein isolate (SPI) from postnatal day (PND) 30, ovariectomized on PND 50 and infused with 5 μg/kg/d 17β-estradiol (E2) or vehicle. E2 increased uterine wet weight (P<0.05). RNAseq analysis revealed that E2 significantly altered expression of 1991 uterine genes (P<0.05). SPI feeding had no effect on uterine weight and altered expression of far fewer genes than E2 at 152 genes (P<0.05). Overlap between E2 and SPI genes was limited to 67 genes. Functional annotation analysis indicated significant differences in uterine biological processes affected by E2 and SPI and little evidence for recruitment of estrogen receptor (ER)α to the promoters of ER-responsive genes after SPI feeding. The major E2 up-regulated uterine pathways were carcinogenesis and extracellular matrix organization, whereas SPI feeding up-regulated uterine peroxisome proliferator activated receptor (PPAR) signaling and fatty acid metabolism. The combination of E2 and SPI resulted in significant regulation of 504 fewer genes relative to E2 alone. The ability of E2 to induce uterine proliferation in response to the carcinogen dimethybenz(a)anthracene (DMBA) as measured by expression of PCNA and Ki67 mRNA was suppressed by feeding SPI (P<0.05). These data suggest that SPI is a selective estrogen receptor modulator (SERM) interacting with a small sub-set of E2-regulated genes and is anti-estrogenic in the presence of endogenous estrogens.
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Affiliation(s)
- Martin J Ronis
- Department of Pharmacology & Experimental Therapeutics, Louisiana State University Health Sciences Center, New Orleans, LA 70112, United States.
| | - Horacio Gomez-Acevedo
- Arkansas Children's Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, AR 72202, United States
| | - Michael L Blackburn
- Arkansas Children's Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, AR 72202, United States
| | - Mario A Cleves
- Arkansas Children's Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, AR 72202, United States; Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR 72202, United States
| | - Rohit Singhal
- Department of Pharmacology & Toxicology, University of Arkansas for Medical Sciences, Little Rock, AR 72202, United States
| | - Thomas M Badger
- Arkansas Children's Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, AR 72202, United States; Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR 72202, United States
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20
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Persiani S, Sala F, Manzotti C, Colovic M, Zangarini M, Donazzolo Y, Barbetta B, Vitalini C, Giacovelli G, Benvenuti C, Rovati LC. Evaluation of Levothyroxine Bioavailability after Oral Administration of a Fixed Combination of Soy Isoflavones in Post-menopausal Female Volunteers. Drug Res (Stuttg) 2016; 66:136-40. [PMID: 26125285 DOI: 10.1055/s-0035-1555784] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BACKGROUND Post-menopausal women under treatment with levothyroxine for their medical conditions may take concomitantly dietary supplements containing soy isoflavones in combination to treat their post-menopausal symptoms. The aim of this study was to investigate the effect of a fixed combination of soy isoflavones on the oral bioavailability of levothyroxine in post-menopausal female volunteers. METHODS 12 healthy post-menopausal female, who were on stable oral levothyroxine as replacement/supplementation therapy for hypothyroidism, received a single recommended oral dose of a food supplement containing 60 mg of soy isoflavones (>19% genistin and daidzin) concomitantly with (test) and 6 h later (reference) the administration of levothyroxine in a randomized, open label, crossover fashion. Plasma concentrations of levothyroxine and soy isoflavones (daidzin, daidzein, genistin, genistein, S-equol) were determined by LC-MS/MS. Pharmacokinetic (PK) parameters were determined by non-compartmental analysis. No effect of soy isoflavones was assumed if the 90% confidence intervals (CIs) for the estimated ratio test/reference was included in the acceptance limits 0.80-1.25 for PK parameters Cmax and AUCt. RESULTS The test/reference ratios Cmax and AUCt of levothyroxine were very close to unity (1.02 and 0.99, respectively) and the corresponding 90% CIs (0.99-1.04 and 0.88-1.12, respectively) fell entirely within the acceptance bioequivalence limits. CONCLUSION The combination of soy isoflavones used in the present investigation does not affect the rate and extent of levothyroxine absorption when administered concomitantly in post-menopausal women.
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Affiliation(s)
| | - F Sala
- Rottapharm Biotech S.r.l., Monza, Italy
| | | | - M Colovic
- Rottapharm Biotech S.r.l., Monza, Italy
| | | | - Y Donazzolo
- Eurofins|OPTIMED Clinical Research, Gieres, France
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21
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Elorinne AL, Alfthan G, Erlund I, Kivimäki H, Paju A, Salminen I, Turpeinen U, Voutilainen S, Laakso J. Food and Nutrient Intake and Nutritional Status of Finnish Vegans and Non-Vegetarians. PLoS One 2016; 11:e0148235. [PMID: 26840251 PMCID: PMC4739591 DOI: 10.1371/journal.pone.0148235] [Citation(s) in RCA: 138] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Accepted: 01/12/2016] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Vegetarian and vegan diets have become more popular among adolescents and young adults. However, few studies have investigated the nutritional status of vegans, who may be at risk of nutritional deficiencies. OBJECTIVE To compare dietary intake and nutritional status of Finnish long-term vegans and non-vegetarians. METHODS Dietary intake and supplement use were estimated using three-day dietary records. Nutritional status was assessed by measuring biomarkers in plasma, serum, and urine samples. Vegans' (n = 22) data was compared with those of sex- and age-matched non-vegetarians (n = 19). RESULTS All vegans adhered strictly to their diet; however, individual variability was marked in food consumption and supplementation habits. Dietary intakes of key nutrients, vitamins B12 and D, were lower (P < 0.001) in vegans than in non-vegetarians. Nutritional biomarker measurements showed lower concentrations of serum 25-hydroxyvitamin D3 (25(OH)D3), iodine and selenium (corrected for multiple comparisons, P < 0.001), Vegans showed more favorable fatty acid profiles (P < 0.001) as well as much higher concentrations of polyphenols such as genistein and daidzein (P < 0.001). Eicosapentaenoic acid proportions in vegans were higher than expected. The median concentration of iodine in urine was below the recommended levels in both groups. CONCLUSIONS Long-term consumption of a vegan diet was associated with some favorable laboratory measures but also with lowered concentrations of key nutrients compared to reference values. This study highlights the need for nutritional guidance to vegans.
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Affiliation(s)
- Anna-Liisa Elorinne
- School of Applied Educational Science and Teacher Education, University of Eastern Finland, Savonlinna, Finland
- * E-mail:
| | - Georg Alfthan
- The Genomics and Biomarkers Unit, National Institute for Health and Welfare, Helsinki, Finland
| | - Iris Erlund
- The Genomics and Biomarkers Unit, National Institute for Health and Welfare, Helsinki, Finland
| | - Hanna Kivimäki
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Annukka Paju
- Department of Clinical Chemistry and Hematology, Helsinki University Central Hospital Laboratory, Helsinki University Central Hospital, Helsinki, Finland
| | - Irma Salminen
- The Genomics and Biomarkers Unit, National Institute for Health and Welfare, Helsinki, Finland
| | | | - Sari Voutilainen
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Juha Laakso
- Finnish Safety and Chemicals Agency, Helsinki, Finland
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22
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Akaza H. [Epidemiology and prevention]. Nihon Rinsho 2016; 74:13-19. [PMID: 26793873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Incidence and mortality rates of the prostate cancer are quite different between countries in the world. Such diversity may relate not only with the genetic difference but life style including diet. It is sure that the countries where PSA test widely prevails experience the decrease of the mortality of the prostate cancer. In Japan, 25% of the population is now over 65 years old. Surprisingly, one third of the patients with prostate cancer who were diagnosed at year 2010 are over 75 years old. Adequate selection of the treatment and endeavor to establish prevention strategy are important.
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23
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Padhi EM, Blewett HJ, Duncan AM, Guzman RP, Hawke A, Seetharaman K, Tsao R, Wolever TM, Ramdath DD. Whole Soy Flour Incorporated into a Muffin and Consumed at 2 Doses of Soy Protein Does Not Lower LDL Cholesterol in a Randomized, Double-Blind Controlled Trial of Hypercholesterolemic Adults. J Nutr 2015; 145:2665-74. [PMID: 26446482 PMCID: PMC4656908 DOI: 10.3945/jn.115.219873] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 08/02/2015] [Accepted: 09/09/2015] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND Soy protein may reduce coronary heart disease (CHD) risk by lowering LDL cholesterol, but few studies have assessed whether whole soy flour displays a similar effect. OBJECTIVE The aim of this study was to assess the dose effect of whole soy flour incorporated into muffins on plasma LDL cholesterol in hypercholesterolemic adults. METHODS Adults aged 30-70 y (n = 243) with elevated LDL cholesterol (≥3.0 and ≤5.0 mmol/L) were stratified by LDL cholesterol and randomly assigned to consume 2 soy muffins containing 25 g soy protein [high-dose soy (HDS)], 1 soy and 1 wheat muffin containing 12.5 g soy protein and 12.5 g whey protein [low-dose soy (LDS)], or 2 wheat muffins containing 25 g whey protein (control) daily for 6 wk while consuming a self-selected diet. Fasting blood samples were collected at weeks 0, 3, and 6 for analysis of plasma lipids [total, LDL, and HDL cholesterol and triglycerides (TGs)], glucose, insulin, C-reactive protein (CRP), and isoflavones. Blood pressures also were measured. Dietary intake was assessed at weeks 0 and 4 with the use of 3 d food records. Treatment effects were assessed with the use of intention-to-treat analysis with multiple imputation and LDL cholesterol as the primary outcome. RESULTS In total, 213 (87.6%) participants completed the trial. Participants were primarily Caucasian (83%) and mostly female (63%), with a mean ± SD body mass index (in kg/m2) of 28.0 ± 4.6 and systolic and diastolic blood pressures of 122 ± 16 and 77 ± 11 mm Hg, respectively. Despite a dose-dependent increase in plasma isoflavones (P < 0.001), neither HDS nor LDS had a significant effect on LDL cholesterol compared with control (mean ± SEM changes: control, -0.04 ± 0.05 mmol/L; HDS, 0.01 ± 0.05 mmol/L; and LDS, -0.04 ± 0.06 mmol/L). There were no significant treatment effects on total or HDL cholesterol, TGs, CRP, homeostatic model assessment of insulin resistance, blood pressure, or the Framingham 10-y CHD risk score. CONCLUSION Consuming 12.5 or 25 g protein from defatted soy flour incorporated into muffins does not reduce LDL cholesterol or other CHD risk factors in hypercholesterolemic adults. This trial was registered at clinicaltrials.gov as NCT01547585.
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Affiliation(s)
- Emily Mt Padhi
- Guelph Food Research Centre, Agriculture and Agri-Food Canada, Guelph, Canada; Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Canada
| | - Heather J Blewett
- Canadian Centre for Agri-Food Research in Health and Medicine, Agriculture and Agri-Food Canada, Winnipeg, Canada; and
| | - Alison M Duncan
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Canada
| | - Randolph P Guzman
- Canadian Centre for Agri-Food Research in Health and Medicine, Agriculture and Agri-Food Canada, Winnipeg, Canada; and
| | - Aileen Hawke
- Guelph Food Research Centre, Agriculture and Agri-Food Canada, Guelph, Canada
| | | | - Rong Tsao
- Guelph Food Research Centre, Agriculture and Agri-Food Canada, Guelph, Canada
| | | | - D Dan Ramdath
- Guelph Food Research Centre, Agriculture and Agri-Food Canada, Guelph, Canada;
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24
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Kurrat A, Blei T, Kluxen FM, Mueller DR, Piechotta M, Soukup ST, Kulling SE, Diel P. Lifelong exposure to dietary isoflavones reduces risk of obesity in ovariectomized Wistar rats. Mol Nutr Food Res 2015; 59:2407-18. [PMID: 26346629 DOI: 10.1002/mnfr.201500240] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [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: 03/27/2015] [Revised: 08/20/2015] [Accepted: 08/23/2015] [Indexed: 12/17/2022]
Abstract
SCOPE Traditional Asian diet rich in soy isoflavones (ISOs) is discussed to be linked to a lower obesity prevalence. In lifelong and short-term exposure scenarios we investigated effects of an ISO-rich diet on the body composition and development of obesity in female rats. METHODS AND RESULTS Female Wistar rats grew up on ISO-free or ISO-rich control diet (CON ISO: 467 mg/kg diet). Starting postnatal day 83, ovariectomized and intact animals received high calorie Western diet (WD) in the absence or presence of ISO (WD ISO: 431 mg/kg diet) for 12 weeks to induce obesity or maintained on respective control diet (CON). One group starting ISO exposure after ovariectomy mimics short-term ISO exposure in postmenopausal Western women. Lifelong but not short-term ISO exposure resulted in reduced body weight, visceral fat mass, serum leptin, and smaller adipocytes. ISO decreased hepatic SREBP-1c, ACC, FAS, and PPARγ mRNA expression in nonobese animals. Moreover, ovariectomy reduced skeletal muscle weight, which was antagonized by both short-term and lifelong ISO exposure. CONCLUSION Our results indicate that in female rats lifelong but not short-term ISO intake reduces the risk to develop obesity. Furthermore, lifelong and short-term ISO exposure may antagonize loss of skeletal muscle mass induced by ovariectomy.
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Affiliation(s)
- Anne Kurrat
- Department of Molecular and Cellular Sports Medicine, Institute of Cardiovascular Research and Sports Medicine, German Sports University, Cologne, Germany
| | - Tina Blei
- Department of Molecular and Cellular Sports Medicine, Institute of Cardiovascular Research and Sports Medicine, German Sports University, Cologne, Germany
| | - Felix M Kluxen
- Department of Molecular and Cellular Sports Medicine, Institute of Cardiovascular Research and Sports Medicine, German Sports University, Cologne, Germany
| | - Dennis R Mueller
- Department of Molecular and Cellular Sports Medicine, Institute of Cardiovascular Research and Sports Medicine, German Sports University, Cologne, Germany
| | - Marion Piechotta
- Clinic for Cattle, Endocrinology, University of Veterinary Medicine, Hannover, Germany
| | - Sebastian T Soukup
- Department of Safety and Quality of Fruit and Vegetables, Max Rubner-Institut, Karlsruhe, Germany
| | - Sabine E Kulling
- Department of Safety and Quality of Fruit and Vegetables, Max Rubner-Institut, Karlsruhe, Germany
| | - Patrick Diel
- Department of Molecular and Cellular Sports Medicine, Institute of Cardiovascular Research and Sports Medicine, German Sports University, Cologne, Germany
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25
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Liu XH, Zhao JB, Guo L, Yang YL, Hu F, Zhu RJ, Feng SL. Simultaneous determination of calycosin-7-O-β-D-glucoside, ononin, calycosin, formononetin, astragaloside IV, and astragaloside II in rat plasma after oral administration of Radix Astragali extraction for their pharmacokinetic studies by ultra-pressure liquid chromatography with tandem mass spectrometry. Cell Biochem Biophys 2015; 70:677-86. [PMID: 24782060 DOI: 10.1007/s12013-014-9972-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
A sensitive and reliable ultra-pressure liquid chromatography with tandem mass spectrometry (UPLC-MS) was developed and validated for simultaneous quantification of six main bioactive components, i.e., calycosin-7-O-β-D-glucoside, ononin, calycosin, formononetin, astragaloside IV, and astragaloside II in rat plasma after oral administration of the 95 % ethanol extraction from Radix Astragali. Plasma samples were extracted with Waters Oasis(TM) HLB 1 cc (30 mg) Extraction Cartridges (SPE) separated on an UPLC™ BEH C18 column and detected by MS with electro spray ionization interface in positive selective ion monitoring mode. Calibration curves offered linear ranges of two orders of magnitude with r (2) > 0.99. The method had the lower limit quantification of 1.30, 0.73, 1.17, 2.33, 0.63, and 0.83 ng/mL for ononin, calycosin, calycosin-7-O-β-D-glucoside, formononetin, astragaloside IV, and astragaloside II, respectively, with precision less than 10 %. The RSD of intra- and inter-day variations ranged from 1.66 to 6.46 and 3.39 to 6.58 %. This developed method was applied subsequently to pharmacokinetic studies of the six compounds in rats successfully. The proposed method was for the first time to compare the pharmacokinetic difference between calycosin-7-O-β-D-glucoside and calycosin in rat plasma, so as between ononin and formononetin, and studied to the astragaloside II pharmacokinetics in rat plasma.
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Affiliation(s)
- Xiao-hua Liu
- School of Pharmacy, Lanzhou University, 199 Donggangxi Road, Lanzhou, 730000, People's Republic of China
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26
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Rodríguez-Morató J, Farré M, Pérez-Mañá C, Papaseit E, Martínez-Riera R, de la Torre R, Pizarro N. Pharmacokinetic Comparison of Soy Isoflavone Extracts in Human Plasma. J Agric Food Chem 2015; 63:6946-53. [PMID: 26186408 DOI: 10.1021/acs.jafc.5b02891] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [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: 05/07/2023]
Abstract
The soy isoflavones daidzein and genistein produce several biological activities related to health benefits. A number of isoflavone extracts are commercially available, but there is little information concerning the specific isoflavone content of these products or differences in their bioavailability and pharmacokinetics. This study describes the development and validation of an analytical method to detect and quantify daidzein, genistein, and equol in human plasma using liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS). The method was applied in a crossover, randomized, bioavailability study. Twelve healthy volunteers were administered the same total isoflavones dose from two isoflavone supplement preparations (Super-Absorbable Soy Isoflavones (Life Extension, USA) and Fitoladius (Merck, Spain)). The pharmacokinetic parameters (AUC0-24/dose and Cmax/dose) of the isoflavones from the two preparations differed significantly. Such differences in bioavailability and kinetics may have relevant effects on the health benefits derived from their intake.
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Affiliation(s)
- Jose Rodríguez-Morató
- †Integrative Pharmacology and Systems Neuroscience Research Group, Neurosciences Research Program, IMIM (Hospital del Mar Medical Research Institute), Dr. Aiguader 88, Barcelona 08003, Spain
- ‡Pompeu Fabra University (CEXS-UPF), Dr. Aiguader 88, Barcelona 08003, Spain
- §CIBER de Fisiopatologı́a Obesidad y Nutrición, Santiago de Compostela 15706, Spain
| | - Magí Farré
- †Integrative Pharmacology and Systems Neuroscience Research Group, Neurosciences Research Program, IMIM (Hospital del Mar Medical Research Institute), Dr. Aiguader 88, Barcelona 08003, Spain
- #Department of Pharmacology, Therapeutics and Toxicology and Department of Psychiatry, Universitat Autònoma de Barcelona, UAB Campus, M Building, Barcelona 08193, Spain
| | - Clara Pérez-Mañá
- †Integrative Pharmacology and Systems Neuroscience Research Group, Neurosciences Research Program, IMIM (Hospital del Mar Medical Research Institute), Dr. Aiguader 88, Barcelona 08003, Spain
- #Department of Pharmacology, Therapeutics and Toxicology and Department of Psychiatry, Universitat Autònoma de Barcelona, UAB Campus, M Building, Barcelona 08193, Spain
| | - Esther Papaseit
- †Integrative Pharmacology and Systems Neuroscience Research Group, Neurosciences Research Program, IMIM (Hospital del Mar Medical Research Institute), Dr. Aiguader 88, Barcelona 08003, Spain
- #Department of Pharmacology, Therapeutics and Toxicology and Department of Psychiatry, Universitat Autònoma de Barcelona, UAB Campus, M Building, Barcelona 08193, Spain
| | - Roser Martínez-Riera
- #Department of Pharmacology, Therapeutics and Toxicology and Department of Psychiatry, Universitat Autònoma de Barcelona, UAB Campus, M Building, Barcelona 08193, Spain
- ⊥Institut de Neuropsiquiatria i Adiccions, Adiction Unit and IMIM, Dr. Aiguader 88, Barcelona 08003, Spain
| | - Rafael de la Torre
- †Integrative Pharmacology and Systems Neuroscience Research Group, Neurosciences Research Program, IMIM (Hospital del Mar Medical Research Institute), Dr. Aiguader 88, Barcelona 08003, Spain
- ‡Pompeu Fabra University (CEXS-UPF), Dr. Aiguader 88, Barcelona 08003, Spain
- §CIBER de Fisiopatologı́a Obesidad y Nutrición, Santiago de Compostela 15706, Spain
| | - Nieves Pizarro
- †Integrative Pharmacology and Systems Neuroscience Research Group, Neurosciences Research Program, IMIM (Hospital del Mar Medical Research Institute), Dr. Aiguader 88, Barcelona 08003, Spain
- #Department of Pharmacology, Therapeutics and Toxicology and Department of Psychiatry, Universitat Autònoma de Barcelona, UAB Campus, M Building, Barcelona 08193, Spain
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Xie B, Zhang S, Liu J, Zhan X, Xie D, Zhang Z. Enhanced Estrogenic Activity of Soybean Isoflavones by Coadministration of Liuwei Dihuang Pills in Ovariectomized Rats. Phytother Res 2015; 29:1054-61. [PMID: 25826579 DOI: 10.1002/ptr.5346] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [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: 11/28/2014] [Revised: 03/06/2015] [Accepted: 03/13/2015] [Indexed: 11/09/2022]
Abstract
Soybean isoflavones are beneficial for treating hormone-related diseases. Simultaneous consumption of soybean isoflavones and Liuwei Dihuang pills (LWPs) is effective for treating perimenopausal period syndrome. However, why the combination of isoflavones and LWPs is more effective than ingestion of each component alone remains unknown. Here, we show that enhanced estrogenic activities would appear when the ovariectomized rats were fed with a soybean diet in combination of LWPs treatment. Our further studies explored enhancements of Lactobacillus (19-fold) and Bifidobacterium (12-fold) contents in the intestine of rat and 1.84-fold higher intestinal β-glucosidase activity in LWPs treatment group compared with the control group. As a result, steady-state concentrations of genistein (1.20-fold), daidzein (1.36-fold), and equol (1.43-fold) in serum were significantly elevated in the combination group compared with the soybean alone group. The results present the first evidence of the mechanism of enhanced estrogenic activity of dietary soybean isoflavones in combination with LWPs. Our study indicates that alterations of gut bacteria after LWPs treatment play a key role in the enhanced estrogenic effect of dietary soybean, suggesting a direct relationship between dietary soybean, LWPs, and gut flora.
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Affiliation(s)
- Baogang Xie
- School of Pharmaceutical Science, Nanchang University, Nanchang, China
| | - Shuohua Zhang
- School of Pharmaceutical Science, Nanchang University, Nanchang, China
- Department of General Surgery, Jiangxi Children's Hospital, Nanchang, 330006, China
| | - Jie Liu
- Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu, China
| | - Xuejun Zhan
- Jiangxi Provincial Institute of Medical Science, Nanchang, China
| | - Daze Xie
- Jiangxi Provincial Institute of Medical Science, Nanchang, China
| | - Zhirong Zhang
- Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu, China
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Miyanaga N, Akaza H. [Prostate cancer prevention]. Gan To Kagaku Ryoho 2015; 42:538-543. [PMID: 25981647] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Environmental factors, mainly diet, play an important role in the development of prostate cancer. A previous study identified fat and calcium as risk factors, and lycopene, selenium, soy isoflavone, and vitamin E as preventive factors for the development of prostate cancer. However, many previous studies were observational or in vitro/in vivo based, and enough evidence in a large-scale randomized study has not been provided. In the study of food, not only the intake but also the metabolism is important. For soy isoflavone, analysis of enterobacterial flora concerned with its metabolism to equol is in progress.
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Ko KP, Kim CS, Ahn Y, Park SJ, Kim YJ, Park JK, Lim YK, Yoo KY, Kim SS. Plasma isoflavone concentration is associated with decreased risk of type 2 diabetes in Korean women but not men: results from the Korean Genome and Epidemiology Study. Diabetologia 2015; 58:726-35. [PMID: 25533387 DOI: 10.1007/s00125-014-3463-x] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Accepted: 11/05/2014] [Indexed: 01/03/2023]
Abstract
AIMS/HYPOTHESIS To examine the association between soybean products and risk of type 2 diabetes, we measured four isoflavone biological markers--genistein, daidzein, glycitein and equol--in a nested case-control study. METHODS The study population was composed of 693 cases (316 women and 377 men) and 698 matched controls (317 women and 381 men) within the Korean Genome and Epidemiology Study. The concentrations of isoflavone biomarkers were measured using HPLC-MS/MS on plasma samples that were collected at baseline. A stratified analysis was undertaken to examine the association between plasma isoflavone concentrations and risk of type 2 diabetes according to sex and equol production. Logistic regression models were used to compute ORs and 95% CIs adjusted for confounders. RESULTS In women, compared with the lowest quartile of plasma concentration of genistein, the highest quartile exhibited a significantly decreased risk of diabetes (OR 0.58, 95% CI 0.35, 0.95). When stratified by equol-producing status in women, the OR for diabetes in the highest vs the lowest quartile of genistein concentration was 0.31 (95% CI 0.16, 0.60) in equol producers, but genistein concentration was not associated with risk of diabetes in equol non-producers (p for interaction = 0.013). In men, isoflavone concentrations were not associated with risk of diabetes, regardless of equol-producing status. CONCLUSIONS/INTERPRETATION High plasma concentrations of genistein were associated with a decreased risk of type 2 diabetes in women. This inverse association was prominent in equol-producing participants. These results suggest a beneficial effect of a high intake of soybean products on risk of type 2 diabetes in women.
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Affiliation(s)
- Kwang-Pil Ko
- Department of Preventive Medicine, Gachon University, Incheon, Korea
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Jiang L, Yu LB, Xu GL, Zhang QY, Yan XJ, Wang YR. [Pharmacokinetic study on combined application of gastrodin and puerarin in rats]. Zhongguo Zhong Yao Za Zhi 2015; 40:1179-1184. [PMID: 26226767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
To establish a HPLC method for simultaneously determining plasma concentrations of gastrodin (Gas) and its metabolites hydroxybenzyl alcohol (HBA), puerarin (Pur) and internal standard (IS) p-hydroxyphenylethanol (Tyr) in rats and studying the pharmacokinetic process and interactions of gastrodin and puerarin after single and combined intravenous injection and oral administration. With Tyr as the internal standard, plasma samples were processed with methanol for protein precipitation, supernatant was dried with N2, and residues were re-dissolved with acetonitrile-0.05% phosphoric acid (20: 80). Chromatography was carried out on an Agilent ZORBAX SB-Aq C18 column (4.6 mm x 250 mm, 5 μm), with acetonitrile-0.05% phosphoric acid as the gradient mobile phase for the gradient elution. The UV detector wavelength was set at 221 nm for Gas HBA and IS and 250 nm for Pur. After the single or combined administration of Gas and Pur, their plasma concentrations in rats were detected. WinNonlin 5.2 pharmacokinetic software and SPSS 17. 0 software were used to respectively calculate pharmacokinetic parameters of each group, make a statistical analysis and compare the pharmacokinetic processes of Gas and Pur after the single or combined administration. According to the results, the absolute recoveries between low, media and high concentrations of Gas, HBA and Pur and IS as well as Tyr were more than 77.20%, with a good linearity (r > 0.999 6, n = 5) for Gas, HBA and Pur within concentration ranges of 0.10-101, 0.03-7.58 and 0.05-5.98 mg xL ('1) respectively. The lower limits of quantification for Gas, HBA and Pur were 0.10, 0.03, 0.05 mg x L(-1), respectively. Their in-ra-day and inter-day precisions were less than 12% with the accuracy between 85. 1% -1 10. %. All of the three substances and IS were stable during the whole analysis process. The findings showed significant differences in the main in vivo pharmacokinetic parame-ers in rats (AUC, C.(max) T,½ T.(max) MRT) after the single and combined administration of Gas and Pur. Either after the oral adminis-ration or after the intravenous injection, parameters showed a lower clearance rate ( L) longer mean residence time ( RT) and higher relative bioavailability, especially after the oral administration. Specifically, the relative bioavailability of the combined oral ad-inistration of Pur was 10. 7 times of that of the single administration, while that of Gas was 1. times of that of the single administra-ion. The combined administration of Gas and Pur can promote the absorption, decrease the elimination rate and prolong the mean resi-ence time. The method is simple and accurate and can be applied in the simultaneous determination of plasma concentrations of Gas, HBA and Pur in rats and the pharmacokinetic studies.
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Reverri EJ, LaSalle CD, Franke AA, Steinberg FM. Soy provides modest benefits on endothelial function without affecting inflammatory biomarkers in adults at cardiometabolic risk. Mol Nutr Food Res 2015; 59:323-33. [PMID: 25351805 PMCID: PMC4451218 DOI: 10.1002/mnfr.201400270] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [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: 04/22/2014] [Revised: 09/10/2014] [Accepted: 10/17/2014] [Indexed: 12/19/2022]
Abstract
SCOPE Systemic inflammation, endothelial dysfunction, and oxidative stress are involved in the pathogenesis of the metabolic syndrome (MetS). Epidemiological evidence supports an association between whole soy food consumption and reduced risk of cardiovascular disease (CVD). The objective of this randomized, controlled, cross-over study was to evaluate the effects of soy nut consumption on inflammatory biomarkers and endothelial function and to assess whether isoflavone metabolism to secondary products, equol, and/or O-desmethylangolensin (ODMA), modifies these responses. METHODS AND RESULTS n = 17 adults at cardiometabolic risk were randomly assigned to the order of two snack interventions, soy nuts, and macronutrient-matched control snack, for four weeks each, separated by a two week washout period. Outcome measures included biomarkers of inflammation, oxidative stress, and glycemic control (ELISA and clinical analyzers), endothelial function, and arterial stiffness (peripheral arterial tonometry (PAT)), and isoflavone metabolites (LC-MS/MS). Results revealed that consuming soy nuts improved arterial stiffness as assessed by the augmentation index using PAT (p = 0.03), despite lack of improvement in inflammatory biomarkers. Addition of equol and/or ODMA production status as covariates did not significantly change these results. CONCLUSION Soy nuts when added to a usual diet for one month provide some benefit on arterial stiffness in adults at cardiometabolic risk.
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Affiliation(s)
- Elizabeth J. Reverri
- Department of Nutrition, University of California, Davis, One Shields Avenue, 3135B Meyer Hall, Davis, CA 95616
| | - Colette D. LaSalle
- Department of Nutrition, University of California, Davis, One Shields Avenue, 3135B Meyer Hall, Davis, CA 95616
| | - Adrian A. Franke
- Department of Food Science and Human Nutrition, University of Hawai’i, Mānoa, 677 Ala Moana Boulevard, Suite 901, Honolulu, HI 96813
| | - Francene M. Steinberg
- Department of Nutrition, University of California, Davis, One Shields Avenue, 3135B Meyer Hall, Davis, CA 95616
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Chen JR, Lazarenko OP, Blackburn ML, Badger TM, Ronis MJJ. Soy protein isolate inhibits high-fat diet-induced senescence pathways in osteoblasts to maintain bone acquisition in male rats. Endocrinology 2015; 156:475-87. [PMID: 25490147 PMCID: PMC4298323 DOI: 10.1210/en.2014-1427] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Chronic consumption by experimental animals of a typical Western diet high in saturated fats and cholesterol during postnatal life has been demonstrated to impair skeletal development. However, the underlying mechanism by which high-fat, energy-dense diets affect bone-forming cell phenotypes is poorly understood. Here, we show that male weanling rats fed a diet containing 45% fat and 0.5% cholesterol made with casein (HF-Cas) for 6 weeks displayed lower bone mineral density and strength compared with those of AIN-93G-fed dietary controls. Substitution of casein with soy protein isolate (SPI) in the high-fat diet (HF-SPI) prevented these effects. The bone-sparing effects of SPI were associated with prevention of HF-Cas-induced osteoblast senescence pathways through suppression of the p53/p21 signaling pathways. HF-Cas-fed rats had increased caveolin-1 and down-regulated Sirt1, leading to activations of peroxisome proliferator-activated receptor γ (PPARγ) and p53/p21, whereas rats fed HF-SPI suppressed caveolin-1 and activated Sirt1 to deacetylate PPARγ and p53 in bone. Treatment of osteoblastic cells with nonesterified free fatty acid (NEFA) increased cell senescence signaling pathways. Isoflavones significantly blocked activations of senescence-associated β-galactosidase and PPARγ/p53/p21 by NEFA. Finally, replicative senescent osteoblastic cells and bone marrow mesenchymal ST2 cells exhibited behavior similar to that of cells treated with NEFA and in vivo bone cells in rats fed the HF-Cas diet. These results suggest that (1) high concentrations of NEFA occurring with HF intake are mediators of osteoblast cell senescence leading to impairment of bone development and acquisition and (2) the molecular mechanisms underlying the SPI-protective effects involve isoflavone-induced inhibition of osteoblastic cell senescence to prevent HF-induced bone impairments.
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Affiliation(s)
- Jin-Ran Chen
- Arkansas Children's Nutrition Center (J.-R.C., O.P.L, M.L.B., T.M.B., M.J.J.R.), Little Rock, Arkansas 72202; and Department of Pediatrics (J.-R.C., O.P.L, M.L.B., T.M.B., M.J.J.R.), University of Arkansas for Medical Sciences, Little Rock, Arkansas 72202
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Blei T, Soukup ST, Schmalbach K, Pudenz M, Möller FJ, Egert B, Wörtz N, Kurrat A, Müller D, Vollmer G, Gerhäuser C, Lehmann L, Kulling SE, Diel P. Dose-dependent effects of isoflavone exposure during early lifetime on the rat mammary gland: Studies on estrogen sensitivity, isoflavone metabolism, and DNA methylation. Mol Nutr Food Res 2015; 59:270-83. [PMID: 25410811 DOI: 10.1002/mnfr.201400480] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [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: 07/18/2014] [Revised: 10/23/2014] [Accepted: 10/29/2014] [Indexed: 12/23/2022]
Abstract
SCOPE Isoflavone (ISO) exposure during adolescence modulates 17β-estradiol (E2) sensitivity of the adult mammary gland. The present study investigated the dose dependency of these effects focusing on proliferation, estrogen receptor dependent and independent gene expression, as well as DNA methylation and ISO metabolism. METHODS AND RESULTS Female Wistar rats were lifelong exposed to an ISO-depleted diet or to diets enriched with a soy ISO extract (ISO-rich diet (IRD)) causing plasma concentrations as observed minimally (IRDlow) and maximally (IRDhigh) in Asian women. The extract was characterized by both phytochemical analysis and E-Screen. Rats were ovariectomized at postnatal day (PND) 80 and treated with E2 from PND94 to 97. In contrast to uterine response, body weight and visceral fat mass were affected by ISO. In the mammary gland, both E2-induced proliferation (proliferating cell nuclear antigen staining) and estrogen receptor activation (progesterone receptor staining) were significantly reduced by IRDhigh but not by IRDlow, which however attenuated Gdf15 mRNA expression. DNA methylation analysis revealed significant differences in the promoter regions of Aldhl1, Extl1, and WAP between IRDhigh and ISO-depleted diet. CONCLUSION Lifelong exposure to ISO results in dose-dependent differential effects on proliferation, gene expression, and DNA methylation in rat mammary glands. Yet, a decrease in estrogen responsiveness was only achieved by IRDhigh.
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Affiliation(s)
- Tina Blei
- German Sports University Cologne, Köln, Germany
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Zhao XL, Liu L, Di LQ, Li JS, Kang A. [Studies on effects of calycosin-7-O-β-D-glucoside on prim-O-glucosylcimifugin and cimifugin in vivo pharmacokinetics]. Zhongguo Zhong Yao Za Zhi 2014; 39:4669-4674. [PMID: 25911821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Study on the effects of Astragali Radix main active flavone calycosin-7-O-β-D-glucoside on Saposhnikoviae Radix main active ingredients prim-O-glucosylcimifugin and cimifugin, a UPLC-MS/MS method for simultaneous determination of prim-O-glucosylcimifugin and cimifugin in rat plasma was established, and the comparative pharmacokinetics of prim-O-glucosylcimifugin and cimifugin after oral administration of prim-O-glucosylcimifugin and calycosin-7-O-β-D-glucoside-prim-O-glucosylcimifugin to rats were carried out, which might be conductive in exploring the rationality of Astragali Radix - Saposhnikoviae Radix herb couple. Twelve male SD rats were divided into two groups. Prim-O-glucosylcimifugin and cimifugin in rat plasma of different time points after oral administration of prim-O-glucosylcimifugin and calycosin-7-O-β-D-glucoside - prim-O-glucosylcimifugin to rats were determinated. And the main pharmacokinetic parameters were investigated using DAS 3. 2. 4. The established method was rapid, accurate and sensitive for simultaneous determination of prim-O-glucosylcimifugin and cimifugin in rat plasma. The analysis was performed on a Waters Acquity BEH C18 column (2.1 mm x 100 mm, 1.7 μm) with the mixture of acetonitrile and 0.1% formic acid/water as mobile phase, and the gradient elution at a flow rate of 0.3 mL x min(-1). The analytes were detected by tandem mass spectrometry with the electrospray ionization (ESI) source and in the multiple reaction monitoring (MRM) mode. Compared with prim-O-glucosylcimifugin group, the AUC(0-t)., and AUC(0-∞) of p-O-glucosylcimifugin as well as the C(max) of cimifugin significantly increased (P < 0.05) in calycosin-7-O-β-D-glucoside-prim-O-glucosylcimifugin group. Calycosin-7-O-β-D-glucoside could enhance the absorption of prim-O-glucosylcimifugin and cimifugin and improve the bioavailability, explaining preliminarily the rationality of Astragali Radix-Saposhnikoviae Radix herb couple.
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Shike M, Doane AS, Russo L, Cabal R, Reis-Filho JS, Gerald W, Cody H, Khanin R, Bromberg J, Norton L. The effects of soy supplementation on gene expression in breast cancer: a randomized placebo-controlled study. J Natl Cancer Inst 2014; 106:dju189. [PMID: 25190728 PMCID: PMC4817128 DOI: 10.1093/jnci/dju189] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [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: 02/06/2014] [Revised: 05/22/2014] [Accepted: 05/28/2014] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND There are conflicting reports on the impact of soy on breast carcinogenesis. This study examines the effects of soy supplementation on breast cancer-related genes and pathways. METHODS Women (n = 140) with early-stage breast cancer were randomly assigned to soy protein supplementation (n = 70) or placebo (n = 70) for 7 to 30 days, from diagnosis until surgery. Adherence was determined by plasma isoflavones: genistein and daidzein. Gene expression changes were evaluated by NanoString in pre- and posttreatment tumor tissue. Genome-wide expression analysis was performed on posttreatment tissue. Proliferation (Ki67) and apoptosis (Cas3) were assessed by immunohistochemistry. RESULTS Plasma isoflavones rose in the soy group (two-sided Wilcoxon rank-sum test, P < .001) and did not change in the placebo group. In paired analysis of pre- and posttreatment samples, 21 genes (out of 202) showed altered expression (two-sided Student's t-test, P < .05). Several genes including FANCC and UGT2A1 revealed different magnitude and direction of expression changes between the two groups (two-sided Student's t-test, P < .05). A high-genistein signature consisting of 126 differentially expressed genes was identified from microarray analysis of tumors. This signature was characterized by overexpression (>2-fold) of cell cycle transcripts, including those that promote cell proliferation, such as FGFR2, E2F5, BUB1, CCNB2, MYBL2, CDK1, and CDC20 (P < .01). Soy intake did not result in statistically significant changes in Ki67 or Cas3. CONCLUSIONS Gene expression associated with soy intake and high plasma genistein defines a signature characterized by overexpression of FGFR2 and genes that drive cell cycle and proliferation pathways. These findings raise the concerns that in a subset of women soy could adversely affect gene expression in breast cancer.
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MESH Headings
- Adult
- Aged
- Apoptosis/drug effects
- Biomarkers/blood
- Breast Neoplasms/blood
- Breast Neoplasms/drug therapy
- Breast Neoplasms/metabolism
- Breast Neoplasms/pathology
- Carcinoma, Ductal, Breast/blood
- Carcinoma, Ductal, Breast/drug therapy
- Carcinoma, Ductal, Breast/metabolism
- Carcinoma, Ductal, Breast/pathology
- Caspase 3/metabolism
- Cell Proliferation/drug effects
- Dietary Supplements/adverse effects
- Female
- Gene Expression Regulation, Neoplastic/drug effects
- Genistein/blood
- Humans
- Immunohistochemistry
- Isoflavones/blood
- Ki-67 Antigen/metabolism
- Middle Aged
- Receptor, Fibroblast Growth Factor, Type 2/metabolism
- Soybean Proteins/administration & dosage
- Soybean Proteins/adverse effects
- Tissue Array Analysis
- Up-Regulation
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Affiliation(s)
- Moshe Shike
- Department of Medicine (MS, AD, LR, JB, LN) and Department of Pathology (RC, JRF, WG) and Department of Surgery (HC) and Department of Computational Biology (RK), Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College (MS, JRF, WG, HC, JB, LN).
| | - Ashley S Doane
- Department of Medicine (MS, AD, LR, JB, LN) and Department of Pathology (RC, JRF, WG) and Department of Surgery (HC) and Department of Computational Biology (RK), Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College (MS, JRF, WG, HC, JB, LN)
| | - Lianne Russo
- Department of Medicine (MS, AD, LR, JB, LN) and Department of Pathology (RC, JRF, WG) and Department of Surgery (HC) and Department of Computational Biology (RK), Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College (MS, JRF, WG, HC, JB, LN)
| | - Rafael Cabal
- Department of Medicine (MS, AD, LR, JB, LN) and Department of Pathology (RC, JRF, WG) and Department of Surgery (HC) and Department of Computational Biology (RK), Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College (MS, JRF, WG, HC, JB, LN)
| | - Jorge S Reis-Filho
- Department of Medicine (MS, AD, LR, JB, LN) and Department of Pathology (RC, JRF, WG) and Department of Surgery (HC) and Department of Computational Biology (RK), Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College (MS, JRF, WG, HC, JB, LN)
| | - William Gerald
- Department of Medicine (MS, AD, LR, JB, LN) and Department of Pathology (RC, JRF, WG) and Department of Surgery (HC) and Department of Computational Biology (RK), Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College (MS, JRF, WG, HC, JB, LN)
| | - Hiram Cody
- Department of Medicine (MS, AD, LR, JB, LN) and Department of Pathology (RC, JRF, WG) and Department of Surgery (HC) and Department of Computational Biology (RK), Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College (MS, JRF, WG, HC, JB, LN)
| | - Raya Khanin
- Department of Medicine (MS, AD, LR, JB, LN) and Department of Pathology (RC, JRF, WG) and Department of Surgery (HC) and Department of Computational Biology (RK), Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College (MS, JRF, WG, HC, JB, LN)
| | - Jacqueline Bromberg
- Department of Medicine (MS, AD, LR, JB, LN) and Department of Pathology (RC, JRF, WG) and Department of Surgery (HC) and Department of Computational Biology (RK), Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College (MS, JRF, WG, HC, JB, LN)
| | - Larry Norton
- Department of Medicine (MS, AD, LR, JB, LN) and Department of Pathology (RC, JRF, WG) and Department of Surgery (HC) and Department of Computational Biology (RK), Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical College (MS, JRF, WG, HC, JB, LN)
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Soukup ST, Al-Maharik N, Botting N, Kulling SE. Quantification of soy isoflavones and their conjugative metabolites in plasma and urine: an automated and validated UHPLC-MS/MS method for use in large-scale studies. Anal Bioanal Chem 2014; 406:6007-20. [PMID: 25103528 DOI: 10.1007/s00216-014-8034-y] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [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: 05/08/2014] [Revised: 06/27/2014] [Accepted: 07/14/2014] [Indexed: 10/24/2022]
Abstract
The biotransformation of isoflavones by gut microbiota and by drug metabolizing enzymes plays a crucial role in the understanding of their potential health-promoting effects. The purpose of our work was to develop a simultaneous, sensitive, and robust automated ultra high performance liquid chromatography tandem mass spectrometry (UHPLC-MS/MS) method to quantify the soy isoflavones daidzein and genistein, their conjugative metabolites, as well as their major microbial degradation products in order to provide a method for use in large clinical trials or animal studies. An automated, 96-well solid-phase extraction method was used to extract the isoflavone analytes from plasma and urine. Separation of genistein, daidzein, and 19 of its metabolites, including five glucuronides, seven sulfates, and two sulfoglucuronides, as well as five microbial metabolites, was achieved in less than 25 min using a sub-2 μm particle column and a gradient elution with acetonitrile/methanol/water as mobile phases. Analysis was performed under negative ionization electrospray MS via the multiple reaction monitoring (MRM). Validation was performed according to the analytical method validation guidelines of Food and Drug Administration (FDA) and International Conference on Harmonization of Technical Requirements for Registration of Pharmaceuticals for Human Use (ICH) consisting of selectivity, accuracy, precision, linearity, limit of detection, recovery, matrix effect, and robustness. All validated parameters essentially matched the FDA and ICH requirements. The application of this method to a pharmacokinetic study in postmenopausal women showed that isoflavones are extensively metabolized in vivo. A robust automated analytical approach was developed, which allows the handling of large sample sizes but nevertheless provides detailed information on the isoflavone metabolite profile leading to a better understanding and interpretation of clinical and animal studies.
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Affiliation(s)
- Sebastian T Soukup
- Department of Safety and Quality of Fruits and Vegetables, Max Rubner-Institut, Haid-und-Neu-Straße 9, 76131, Karlsruhe, Germany
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Timan P, Rojanasthien N, Manorot M, Sangdee C, Teekachunhatean S. Effect of synbiotic fermented milk on oral bioavailability of isoflavones in postmenopausal women. Int J Food Sci Nutr 2014; 65:761-7. [PMID: 24720601 DOI: 10.3109/09637486.2014.908169] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [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] [Indexed: 11/13/2022]
Abstract
The purpose of this study was to investigate the effect of synbiotic fermented milk, containing Lactobacillus paracasei and inulin, on oral bioavailability and pharmacokinetics of isoflavones in healthy postmenopausal women. The study was a one-group pre-post treatment study. Twelve subjects were assigned to consume a single oral dose of 375 mL of soy beverage. Blood samples were collected immediately before and at various time points until 32 hours after the administration of the soy beverage. After a washout period, subjects were requested to consume 180 mL of synbiotic fermented milk after breakfast and dinner for 14 days, followed by a single oral dose of 375 mL of soy beverage on the next day. Collection of blood samples after the administration of the soy beverage were performed at the same time points as the former phase. Plasma isoflavone concentrations were measured by using high-performance liquid chromatography (HPLC) technique. In conclusion, this study highlighted that continuous consumption of synbiotic fermented milk followed by a single oral administration of soy beverage significantly enhanced oral bioavailability of isoflavones compared with a single oral dose of soy beverage alone.
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Affiliation(s)
- Porntip Timan
- Department of Pharmacology, Faculty of Medicine, Chiang Mai University , Chiang Mai , Thailand and
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Yasuda S, Wu PS, Hattori E, Tachibana H, Yamada K. Simultaneous Determination of Isoflavones and Bisphenol A in Rat Serum by High-performance Liquid Chromatography Coupled with Coulometric Array Detection. Biosci Biotechnol Biochem 2014; 68:51-8. [PMID: 14745163 DOI: 10.1271/bbb.68.51] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A method for simultaneous detection and quantification is presented to determine the presence of isoflavones and bisphenol A in a biological sample. A coulometric array detector was used with reversed-phase high-performance liquid chromatography (HPLC). Daidzein (1), glycitein (2), genistein (3) and their glucoside conjugates, daidzin (4), glycitin (5) and genistin (6), were measured as phytochemicals. Also assayed here was equol (7), a metabolite from compound 1, and bisphenol A (8), an industrial chemical that acts as an endocrine disrupter. All chemicals were simultaneously detected by using a 600-mV single detection voltage with high efficacy. A mixture of 1, 3 and 8 was orally administered to rats, and the levels of these three chemicals in the serum were clearly increased after a 4 kU beta-glucuronidase treatment. The levels of compounds 1 and 3 in the serum were detected at 1665 and 2040 ng/ml, while 8 was at a low level of 417 ng/ml. Compound 7 in the serum was not detected until after enzymatic hydrolysis (72 ng/ml). These results suggest that this analytical method would be useful for metabolic and pharmacokinetic studies on isoflavones and bisphenol A.
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Affiliation(s)
- Shin Yasuda
- Laboratory of Food Chemistry, Division of Applied Biological Chemistry, Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Fukuoka, Japan.
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Yerramsetty V, Gallaher DD, Ismail B. Malonylglucoside conjugates of isoflavones are much less bioavailable compared with unconjugated β-glucosidic forms in rats. J Nutr 2014; 144:631-7. [PMID: 24647389 DOI: 10.3945/jn.114.190801] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Despite considerable interest in the physiologic effects of isoflavones, the in vivo bioavailability of the most common isoflavone forms, malonylglucoside conjugates, has not been determined. Differences in the bioavailability of malonylglucosides compared with the nonconjugated β-glucoside forms may explain the inconsistent findings regarding the physiologic effects of isoflavones. Therefore, our objective was to determine the effect of malonyl- conjugation on isoflavone bioavailability in an animal model. Malonylgenistin and malonyldaidzin, and their corresponding nonconjugated glucosides, were extracted from soy grits and purified using liquid chromatography. Purity of the isolated forms was confirmed by nuclear magnetic resonance analysis. Male rats were gavaged with malonylgenistin, genistin, malonyldaidzin, or daidzin at a dose of 100 μmol/kg body weight. Blood and urine samples were collected at time intervals ranging from 0 to 48 h. Isoflavone metabolites in plasma and urine were determined using stable isotope dilution-liquid chromatography/mass spectrometry. Comparisons of pharmacokinetic variables were made between nonconjugated and conjugated glucosides and over time of plasma collection. The areas under the time-concentration curve of the metabolites in the plasma obtained after the administration of nonconjugated β-glucosides were 1 to 6 times higher than those of their respective malonylglucosides (P ≤ 0.05). Additionally, maximum plasma concentration and urinary excretion of isoflavone metabolites were significantly higher (1-9 times; P ≤ 0.05) after the administration of nonconjugated β-glucosides. To our knowledge, these results demonstrated, for the first time, that nonconjugated β-glucosides are relatively more bioavailable than their respective malonylglucosides. These differences in the bioavailability of conjugated and nonconjugated β-glucosides should be considered in future studies focused on the bioactivity of isoflavones.
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Yonemoto-Yano H, Maebuchi M, Fukui K, Tsuzaki S, Takamatsu K, Uehara M. Malonyl isoflavone glucosides are chiefly hydrolyzed and absorbed in the colon. J Agric Food Chem 2014; 62:2264-70. [PMID: 24524651 DOI: 10.1021/jf404378r] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Malonyl isoflavone glucosides are water-soluble derivatives of soybean hypocotyls. This study compared the hydrolysis and absorption of malonyl isoflavone glucosides and nonmalonyl isoflavone glucosides in rats. Plasma concentrations of isoflavones were measured after oral administration of malonyl isoflavone glucosides or isoflavone glucosides. After fasting, the duodenum, jejunum, ileum, and colon were excised, and homogenates were prepared. The extent of hydrolysis of each glucoside by each intestinal homogenate was measured. Plasma levels of isoflavone aglycones, such as daidzein and glycitein, were higher in rats administered malonyl isoflavone glucosides than in those administered isoflavone glucosides. The area under the curve of daidzein in plasma of rats administered malonyl isoflavone glucosides was also significantly greater than that in those administered isoflavone glucosides. A transport experiment using Caco-2 cells suggested that degradation of malonyl glucosides to aglycones is necessary for intestinal absorption. Malonyl isoflavone glucosides were hydrolyzed only in the colon, whereas hydrolysis of isoflavone glucosides occurred in the jejunum, ileum, and colon. These results indicated more effective absorption of malonyl isoflavone glucosides than of nonmalonyl isoflavone glucosides. Moreover, effective absorption of malonyl isoflavone aglycones in the colon contributed to the significant increase in plasma isoflavone levels.
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Affiliation(s)
- Hiroko Yonemoto-Yano
- Functional Materials Development Department, Development Laboratories for Food Materials, R&D, ‡Analytical Center for Food Safety, Quality Assurance Department, and #Food Science Research Institute, Research and Development Division, Fuji Oil Company, Ltd. Osaka 598-8540, Japan
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Gardana C, Canzi E, Simonetti P. R(-)-O-desmethylangolensin is the main enantiomeric form of daidzein metabolite produced by human in vitro and in vivo. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 953-954:30-7. [PMID: 24561352 DOI: 10.1016/j.jchromb.2014.01.048] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [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: 10/10/2013] [Revised: 01/21/2014] [Accepted: 01/29/2014] [Indexed: 11/19/2022]
Abstract
After ingestion, human intestinal bacteria transform daidzein into dihydrodaidzein, which can be further metabolised to O-desmethylangolensin. This metabolite, unlike daidzein, has a chiral centre and can therefore occur as two distinct enantiomers; however, it is unclear which enantiomer is present in humans. The aim of this study was to define in vitro and in vivo the structure of O-desmethylangolensin and then to evaluate its pharmacokinetic parameters. Daidzein metabolism was preliminarily investigated in anaerobic batch cultures inoculated with mixed faecal bacteria from O-desmethylangolensin producer volunteers. The transformation was monitored by liquid chromatography-mass spectrometry and a chiral column was used to distinguish dihydrodaidzein and O-desmethylangolensin enantiomers. These were purified, analysed by circular dichroism and the results established R(-)-O-desmethylangolensin as the main product (enantiomer excess 91%). However, both dihydrodaidzein enantiomers were detected. Similar results were obtained by in vivo trials. The in vitro formation of O-desmethylangolensin seems to be directly correlated with the number of transforming microorganisms. This correlation was found in vivo for tmax but not for other pharmacokinetic indexes. The pharmacokinetics of daidzein, dihydrodaidzein and O-desmethylangolensin were then evaluated in 11 healthy adult O-desmethylangolensin producers after the single administration of soy milk containing 100mg daidzein. The conjugated forms of daidzein, dihydrodaidzein and O-desmethylangolensin represent more than 90 and 95% of the plasmatic and urinary forms, respectively. The Cmax, tmax and half-life of O-desmethylangolensin in plasma were 62±53nM, 28±11 and 15±6h, respectively. Relevant inter-individual variations were observed as indicated by the high standard deviations.
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Affiliation(s)
- Claudio Gardana
- Università degli Studi di Milano - Department of Food, Environmental and Nutritional Sciences - DeFENS, Division of Human Nutrition - Via Celoria 2, 20133 Milan, Italy.
| | - Enrica Canzi
- Università degli Studi di Milano - Department of Food, Environmental and Nutritional Sciences - DeFENS, Division of Microbiology - Via Celoria 2, 20133 Milan, Italy
| | - Paolo Simonetti
- Università degli Studi di Milano - Department of Food, Environmental and Nutritional Sciences - DeFENS, Division of Human Nutrition - Via Celoria 2, 20133 Milan, Italy
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Cools S, Van den Broeck W, Vanhaecke L, Heyerick A, Bossaert P, Hostens M, Opsomer G. Feeding soybean meal increases the blood level of isoflavones and reduces the steroidogenic capacity in bovine corpora lutea, without affecting peripheral progesterone concentrations. Anim Reprod Sci 2014; 144:79-89. [PMID: 24439022 DOI: 10.1016/j.anireprosci.2013.12.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [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: 09/28/2013] [Revised: 12/09/2013] [Accepted: 12/13/2013] [Indexed: 11/16/2022]
Abstract
Thirty-three Holstein-Friesian cows were followed from 14 days pre partum until the fourth ovulation post partum. Housing conditions and basic ration were identical for all animals. Concentrates were individually supplemented according to the daily milk production level, using two different types of protein rich concentrates: soybean meal and rapeseed meal. Soybean and rapeseed meal are known to be respectively high and low in isoflavones. Cows were randomly divided into three groups and blocked for parity. Group I (n=11) was supplemented with soybean meal and acted as control group. Groups II (n=11) and III (n=11) were respectively supplemented with soybean and rapeseed meal and were subjected to a biopsy sampling of the corpus luteum at day 9 of the first three postpartal estrous cycles. Soybean meal supplementation to lactating dairy cows (1.72 kg on average) induced an increase in the blood concentration of equol, dihydrodaidzein, o-desmethylangolensin in both soy groups and resulted in a reduced area occupied by steroidogenic (P=0.012) and endothelial cells (P=0.0007) in the luteal biopsies. Blood concentrations of equol and glycitein were negatively correlated with the areas occupied by steroidogenic (r=-0.410 with P=0.0002, respectively r=-0.351 with P=0.008) and endothelial cells (r=-0.337 with P=0.01, respectively r=-0.233 with P=0.085) in the 3 first estrous cycles. The latter however did not affect the diestrous peripheral blood progesterone concentration.
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Affiliation(s)
- S Cools
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium.
| | - W Van den Broeck
- Department of Morphology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium.
| | - L Vanhaecke
- Department of Veterinary Public Health and Food Safety, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium.
| | - A Heyerick
- Laboratory of Pharmacognosy and Phytochemistry, Faculty of Pharmaceutical Sciences, Ghent University, Harelbekestraat 72, 9000 Ghent, Belgium.
| | - P Bossaert
- Department of Veterinary Sciences, Campus Drie Eiken, Antwerp University, Universiteitsplein 1, 2610 Wilrijk, Belgium.
| | - M Hostens
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium.
| | - G Opsomer
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium.
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Rossi M, Amaretti A, Leonardi A, Raimondi S, Simone M, Quartieri A. Potential impact of probiotic consumption on the bioactivity of dietary phytochemicals. J Agric Food Chem 2013; 61:9551-9558. [PMID: 24007212 DOI: 10.1021/jf402722m] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Many healthy phytochemicals occur in food in the form of esters, glycoconjugates, or polymers, which are not directly bioavailable. Probiotic lactobacilli and bifidobacteria, which have evolved within the colonic ecosystem where indigestible oligo- and polysaccharides are their sole carbon sources, bear several glycosyl-hydrolases and can contribute to release the aglycones from glycoconjugated phytochemicals. Among the glycosyl-hydrolases, β-glucosidases are the most pertinent, because many phytochemicals are glucoconjugates. β-Glucosidase-positive probiotic bacteria were proved to release the aglycones of isoflavones and lignans in vitro, but studies in vivo are scarce. A positive correlation between probiotic consumption and urinary and/or plasma levels of isoflavone or lignan metabolites was not established. However, the strains used in the trials were not validated for the enzymatic properties or for the ability to hydrolyze lignans or isoflavones. Thus, activation of specific phytochemicals by probiotic bacteria still needs substantial efforts to be proved.
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Affiliation(s)
- Maddalena Rossi
- Department of Life Sciences, University of Modena and Reggio Emilia , 41125 Modena, Italy
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Zhang YZ, An R, Yuan J, Wang Y, Gu QQ, Wang XH. [Analysis and comparison of intestinal absorption of components of Gegenqinlian decoction in different combinations based on pharmacokinetic parameters]. Yao Xue Xue Bao 2013; 48:1611-1617. [PMID: 24417090] [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] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
To analyse and compare the characteristics of the intestinal absorption of puerarin, baicalin, berberine and liquiritin in different combinations of Gegenqinlian decoction based on pharmacokinetic parameters, a sensitive liquid chromatography-tandem mass spectrometric (LC-MS/MS) method was applied for the quantification of four components in rat's plasma. And pharmacokinetic parameters were determined from the plasma concentration-time data with the DAS software package. The influence of different combinations on pharmacokinetics of four components was studied to analyse and compare the absorption difference of four components, together with the results of the in vitro everted gut model and the rat single pass intestinal perfusion model. The results showed that compared with other combinations, the AUC values of puerarin, baicalin and berberine were increased significantly in Gegenqinlian decoction group, while the AUC value of liquiritin was reduced. Moreover, the absorption of four components was increased significantly supported by the results from the in vitro everted gut model and the rat single pass intestinal perfusion model, which indicated that the Gegenqinlian decoction may promote the absorption of four components and accelerate the metabolism of liquiritin by the cytochrome P450.
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Affiliation(s)
- Yi-Zhu Zhang
- Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Rui An
- Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Jin Yuan
- Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yue Wang
- Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Qing-Qing Gu
- Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xin-Hong Wang
- Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
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Jung JH, Kim HS. The inhibitory effect of black soybean on hepatic cholesterol accumulation in high cholesterol and high fat diet-induced non-alcoholic fatty liver disease. Food Chem Toxicol 2013; 60:404-12. [PMID: 23900008 DOI: 10.1016/j.fct.2013.07.048] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [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: 04/22/2013] [Revised: 07/16/2013] [Accepted: 07/18/2013] [Indexed: 02/06/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is defined as excess of fat in the liver. We investigated the effects of black soybean on the cholesterol metabolism and insulin resistance of mice fed high cholesterol/fat diets. Mice were randomly allocated into four groups that were fed different diets: the normal cholesterol/fat diet; high cholesterol/fat diets (HCD); and HCD with 1%, and 4% black soybean powder (1B-HCD, and 4B-HCD). Liver total cholesterol and triglyceride concentrations were significantly lower in the black soybean-supplemented groups than that in the HCD group. PCR revealed significantly lower hepatic SREBP2 and HMG-CoA reductase mRNA levels of black soybean-supplemented mice. Real-time PCR revealed significantly higher hepatic ABCA1 mRNA level of black soybean-supplemented mice, which may increase cholesterol efflux. Liver bile acids concentration was significantly high in the 4B-HCD group. Black soybean stimulated secretion of adiponectin, activation of pAMPK, and eliminated free fatty acids in the liver. Black soybean supplementation decreased MDA and nitrate level. The activities of SOD, catalase, and GPx were restored by black soybean supplementation. Our data strongly indicate that black soybean influences the balance between oxidative and antioxidative stress. We suggest that black soybean improves cholesterol metabolism, insulin resistance, and alleviates oxidative damage in NAFLD.
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Affiliation(s)
- Ji-Hye Jung
- Division of Biological Science, College of Science, Sookmyung Women's University, Seoul 140-742, Republic of Korea
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Delmanto A, Nahas-Neto J, Traiman P, Uemura G, Pessoa EC, Nahas EAP. Effects of soy isoflavones on mammographic density and breast parenchyma in postmenopausal women: a randomized, double-blind, placebo-controlled clinical trial. Menopause 2013; 20:1049-54. [PMID: 23481125 DOI: 10.1097/gme.0b013e3182850270] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
OBJECTIVE This study aims to evaluate the effects of soy isoflavones on breast tissue in postmenopausal women. METHODS In this randomized, double-blind, placebo-controlled study, 80 women (aged ≥ 45 y and with amenorrhea >12 mo) with vasomotor symptoms were randomized to receive either 250 mg of standardized soy extract corresponding to isoflavone 100 mg/day (n = 40) or placebo (n = 40) for 10 months. Breasts were evaluated through mammographic density and breast parenchyma using ultrasound (US) at baseline and 10-month follow-up. Independent t test, analysis of variance, Mann-Whitney U test, and χ2 trend test were used in statistical analysis. RESULTS Baseline clinical characteristics showed no significant differences between the isoflavone group and the placebo group, with mean (SD) age of 55.1 (6.0) and 56.2 (7.7) years, mean (SD) menopause duration of 6.6 (4.8) and 7.1 (4.2) years, and mean (SD) body mass index of 29.7 (5.0) and 28.5 (4.9) kg/m2, respectively (P > 0.05). The study was completed by 32 women on isoflavone and 34 women on placebo. The groups did not differ in mammographic density or breast parenchyma by US (P > 0.05). Within each group, the baseline and final moments did not differ in mammography or US parameters significantly (P > 0.05). CONCLUSIONS The use of soy isoflavone extract for 10 months does not affect breast density, as assessed by mammography and US, in postmenopausal women.
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Affiliation(s)
- Armando Delmanto
- From the Department of Gynecology and Obstetrics, Botucatu Medical School, São Paulo State University (UNESP), São Paulo, Brazil
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Nakamura T, Murota K, Kumamoto S, Misumi K, Bando N, Ikushiro S, Takahashi N, Sekido K, Kato Y, Terao J. Plasma metabolites of dietary flavonoids after combination meal consumption with onion and tofu in humans. Mol Nutr Food Res 2013; 58:310-7. [PMID: 24039174 DOI: 10.1002/mnfr.201300234] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [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: 03/30/2013] [Revised: 07/11/2013] [Accepted: 07/14/2013] [Indexed: 11/07/2022]
Abstract
SCOPE The effect of food combination on metabolic profile in postprandial plasma has hardly been reported. We investigated the absorption and metabolism of quercetin and soy isoflavones in humans after combination meal consumption. METHODS AND RESULTS Five healthy volunteers ingested sautéed onion and tofu, and the plasma metabolites of quercetin and isoflavones were analyzed. Quercetin and genistein were incubated with human intestinal Caco-2 cells and human hepatoma HepG2 cells to further analyze the influence of simultaneous supply to the small intestine and the liver. Glucuronosyl conjugates of quercetin and methylated quercetin were the major plasma metabolites in the case of onion intake. Plasma metabolites with the single serving of tofu were both glucuronide and sulfate metabolites of isoflavones. Interestingly, quercetin sulfate was only detected after the combined intake of sautéed onion and tofu, accompanied with a decrease in sulfated isoflavones. Besides, quercetin was shown as the preferential substance for phase II enzymes over genistein in both Caco-2 and HepG2 cells. CONCLUSION These results indicate that, when flavonoids and isoflavonoids were ingested together, the metabolic conversions in the small intestine and/or the liver could be altered, resulting in the variation of the postprandial profiles of the plasma metabolites.
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Affiliation(s)
- Toshiyuki Nakamura
- Department of Food Science, Graduate School of Nutrition and Bioscience, The University of Tokushima, Tokushima, Japan
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Dewi FN, Wood CE, Lees CJ, Willson CJ, Register TC, Tooze JA, Franke AA, Cline JM. Dietary soy effects on mammary gland development during the pubertal transition in nonhuman primates. Cancer Prev Res (Phila) 2013; 6:832-42. [PMID: 23771522 PMCID: PMC3737281 DOI: 10.1158/1940-6207.capr-13-0128] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [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] [Indexed: 12/17/2022]
Abstract
While epidemiologic studies suggest that soy intake early in life may reduce breast cancer risk, there are also concerns that exposure to soy isoflavones during childhood may alter pubertal development and hormonal profiles. Here, we assessed the effect of a high-soy diet on pubertal breast development, sex hormones, and growth in a nonhuman primate model. Pubertal female cynomolgus monkeys were randomized to receive a diet modeled on a typical North American diet with one of two protein sources for approximately 4.5 years: (i) casein/lactalbumin (CL, n = 12, as control) or (ii) soy protein isolate with a human equivalent dose of 120 mg/d isoflavones (SOY, n = 17), which is comparable to approximately four servings of soy foods. Pubertal exposure to the SOY diet did not alter onset of menarche, indicators of growth and pubertal progression, or circulating estradiol and progesterone concentrations. Greater endometrial area was seen in the SOY group on the first of four postmenarchal ultrasound measurements (P < 0.05). There was a subtle effect of diet on breast differentiation whereby the SOY group showed higher numbers of differentiated large-sized lobular units and a lower proportion with immature ducts following menarche (P < 0.05). Numbers of small lobules and terminal end buds and mammary epithelial cell proliferation did not differ by diet. Expression of progesterone receptor was lower in immature lobules of soy-fed animals (P < 0.05). Our findings suggest that consumption of soy starting before menarche may result in modest effects consistent with a more differentiated breast phenotype in adulthood.
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Affiliation(s)
- Fitriya N Dewi
- Department of Pathology, Section on Comparative Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA.
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Yerramsetty V, Roe M, Cohen J, Hegeman A, Ismail B. Development of a simple, fast, and accurate method for the direct quantification of selective estrogen receptor modulators using stable isotope dilution mass spectrometry. J Agric Food Chem 2013; 61:7028-7037. [PMID: 23805827 DOI: 10.1021/jf3051895] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A rapid analytical procedure was developed to quantify major selective estrogen receptor modulators (SERMs) simultaneously using stable isotope dilution mass spectrometry (SID-LCMS). Two novel isotopically labeled (SIL) analogues of natural SERMs, genistein and daidzein, were synthesized using a H/D exchange reaction mechanism. Computational chemistry coupled with MS and NMR data confirmed the site and mechanism of deuteration. The SIL analogues, which were mono- and dideutero substituted at the ortho positions, exhibited minimal deuterium isotope effects and were stable under the employed sample preparation protocol and MS analysis. An isotopic overlap correction was successfully employed to improve the accuracy and precision of the analytical method. The developed method, which was found to be sensitive, selective, precise and accurate, could be a valuable tool for research focused on determining the bioavailability of individual SERMs.
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Affiliation(s)
- Vamsidhar Yerramsetty
- Department of Food Science and Nutrition, University of Minnesota , Saint Paul, Minnesota 55108, United States
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50
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Lin Q, Li Y, Tan XM, Yao XC. [Simultaneous determination of formononetin, calycosin and isorhamnetin from Astragalus mongholicus in rat plasma by LC-MS/MS and application to pharmacokinetic study]. Zhong Yao Cai 2013; 36:589-593. [PMID: 24134007] [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] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
OBJECTIVE To establish a method to determine the concentration of formononetin, calycosin and isorhamnetin from Astragalus mongholicus in rats' plasma using LC-MS/MS and calculate their pharmacokinetic parameters. METHODS The contents of formononetin, calycosin and isorhamnetin in plasma were detected before and 24 h after 10 rats were treated with 10 g/kg Astragalus mongholicus. Rutin was used as internal standard. Agilent 1 200 HPLC system with Alltima C18 (150 mm x 2.1 mm, 5 microm) was used. Mobile phase was methanol-water solution with gradient elute at a flow rate of 0.3 mL/min. The column temperature was 40 degrees C. The LC-MS/ MS system was operated using an electrospray ionization probe in negative ion mode; Scan mode: multiple reaction ion monitoring (MRM) mode. The ion of monitor: m/z 267.0 --> 251.9 for formononetin, m/z 283.1 --> 268.2 for calycosin, m/z 315.4 --> 300.1 for isorhamnetin and m/z 609.4 --> 300.1 for rutin (internal standard), respectively. RESULTS The linear range of formononetin, calycosin and isorhamnetin was 5 - 1 000 (r = 0.9996), 3.91 - 500 (r = 0.9989) and 0.5 - 100 ng/mL (r = 0.9992), respectively. The lowest limit of quantification (LLOQ) of formononetin, calycosin and isorhamnetin was 0.625, 0.5 and 0.1 ng/mL, respectively. The pharmacokinetic parameter, t(1/2beta), of formononetin, calycosin and isorhamnetin was (10.43 +/- 2.94), (6.91 +/- 1.33) and (5.07 +/- 1.21) h, respectively. The C(max) of formononetin, calycosin and isorhamnetin was (398.5 +/- 103.7), (138.7 +/- 32.8) and (58.3 +/- 14.5) ng/mL, respectively. The AUC(0 -> 12h), of formononetin, calycosin and isorhamnetin was (1238.8 +/- 311.3), (669.5 +/- 159.7) and (274.1 +/- 83.9)ng x h/mL, respectively. CONCLUSION A sensitive, accuracy and suitable LC-MS/MS method for determination of formononetin, calycosin and isorhamnetin is developed and successfully applied to the pharmacokinetic study of 10 g/kg Astragalus mongholicus after oral administration in rats.
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Affiliation(s)
- Qing Lin
- Huangpu District of the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510700, China
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