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Takeuchi H, Higuchi K, Yoshikane Y, Takagi R, Tokuhiro S, Takenaka K, Oboshi W, Kimura A, Islam JM, Kaneko A, Sato S, Ishizuka S. Drinking Refined Deep-Sea Water Improves the Gut Ecosystem with Beneficial Effects on Intestinal Health in Humans: A Randomized Double-Blind Controlled Trial. Nutrients 2020; 12:nu12092646. [PMID: 32878045 PMCID: PMC7551512 DOI: 10.3390/nu12092646] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/27/2020] [Accepted: 08/27/2020] [Indexed: 12/13/2022] Open
Abstract
World health trends are focusing on a balanced food and beverage intake for healthy life. Refined deep-sea water (RDSW), obtained from deep-sea water collected offshore in Muroto (Japan), is mineral-rich drinking water. We previously reported that drinking RDSW improves human gut health. Here, we analyzed the effect of drinking RDSW on the gut ecosystem to understand this effect. This was a randomized double-blind controlled trial. Ninety-eight healthy adults were divided into two groups: RDSW or mineral water (control). The participants consumed 1 L of either water type daily for 12 weeks. A self-administered questionnaire and stool and urine samples were collected through the intervention. The following were determined: fecal biomarkers of secretory immunoglobulin A (sIgA), five putrefactive products, and nine short-chain-fatty-acids (SCFAs) as the primary outcomes; and three urinary isoflavones and the questionnaire as secondary outcomes. In post-intervention in the RDSW group, we found increased concentrations of five SCFAs and decreased concentrations of phenol and sIgA (p < 0.05). The multiple logistic analysis demonstrated that RDSW significantly affected two biomarkers (acetic and 3-methylbutanoic acids) of the five SCFAs mentioned above (p < 0.05). Similarly, the concentrations of urinary isoflavones tended to increase in post-intervention in the RDSW group. Constipation was significantly alleviated in the RDSW group (94%) compared with the control group (60%). Drinking RDSW improves the intestinal environment, increasing fecal SCFAs and urinary isoflavones, which leads to broad beneficial effects in human.
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Affiliation(s)
- Hiroaki Takeuchi
- Department of Medical Laboratory Sciences, Health and Sciences, International University of Health and Welfare Graduate School, 4-3 Kouzunomori, Narita-City 286-8686, Chiba, Japan; (W.O.); (A.K.); (J.M.I.); (A.K.); (S.S.)
- Department of Kochi Medical School, Kochi University, Kohasu, Oko-cho, Nankoku-City 783-8505, Kochi, Japan; (R.T.); (S.T.)
- Correspondence: ; Tel.: +81-476-20-7762
| | - Keiro Higuchi
- Center for Regional Collaboration, Kochi University, 2-17-47 Asakurahonmachi, Kochi-City 780-8073, Kochi, Japan; (K.H.); (S.I.)
| | - Yu Yoshikane
- Department of Human Living Sciences, Notre Dame Seishin University, 2-16-9 Ifuku-cho, Kita-ku, Okayama-City 700-8516, Okayama, Japan;
| | - Ryo Takagi
- Department of Kochi Medical School, Kochi University, Kohasu, Oko-cho, Nankoku-City 783-8505, Kochi, Japan; (R.T.); (S.T.)
| | - Shinji Tokuhiro
- Department of Kochi Medical School, Kochi University, Kohasu, Oko-cho, Nankoku-City 783-8505, Kochi, Japan; (R.T.); (S.T.)
| | - Koichi Takenaka
- DyDo-T Beverage Co. Ltd., 1310-1 Hanechou-ko, Muroto-City 781-6741, Kochi, Japan;
| | - Wataru Oboshi
- Department of Medical Laboratory Sciences, Health and Sciences, International University of Health and Welfare Graduate School, 4-3 Kouzunomori, Narita-City 286-8686, Chiba, Japan; (W.O.); (A.K.); (J.M.I.); (A.K.); (S.S.)
| | - Asako Kimura
- Department of Medical Laboratory Sciences, Health and Sciences, International University of Health and Welfare Graduate School, 4-3 Kouzunomori, Narita-City 286-8686, Chiba, Japan; (W.O.); (A.K.); (J.M.I.); (A.K.); (S.S.)
| | - Jahirul Md. Islam
- Department of Medical Laboratory Sciences, Health and Sciences, International University of Health and Welfare Graduate School, 4-3 Kouzunomori, Narita-City 286-8686, Chiba, Japan; (W.O.); (A.K.); (J.M.I.); (A.K.); (S.S.)
| | - Ayami Kaneko
- Department of Medical Laboratory Sciences, Health and Sciences, International University of Health and Welfare Graduate School, 4-3 Kouzunomori, Narita-City 286-8686, Chiba, Japan; (W.O.); (A.K.); (J.M.I.); (A.K.); (S.S.)
| | - Shouichi Sato
- Department of Medical Laboratory Sciences, Health and Sciences, International University of Health and Welfare Graduate School, 4-3 Kouzunomori, Narita-City 286-8686, Chiba, Japan; (W.O.); (A.K.); (J.M.I.); (A.K.); (S.S.)
| | - Satoshi Ishizuka
- Center for Regional Collaboration, Kochi University, 2-17-47 Asakurahonmachi, Kochi-City 780-8073, Kochi, Japan; (K.H.); (S.I.)
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Min J, Wang Z, Liang C, Li W, Shao J, Zhu K, Zhou L, Cheng J, Luo S, Yu L, Wu Y, Xie M, Hu X. Detection of Phytoestrogen Metabolites in Breastfed Infants' Urine and the Corresponding Breast Milk by Liquid Chromatography-Tandem Mass Spectrometry. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:3485-3494. [PMID: 32093471 DOI: 10.1021/acs.jafc.9b08107] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
To date, there has been limited information on phytoestrogen (PE) exposure and metabolism in breastfed infants. In the present work, 50 sample pairs of Chinese breastfed infants' urine and the corresponding breast milk were collected. The contents of the relevant PE metabolites in the biosamples were detected via liquid chromatography-tandem mass spectrometry. The correlations between the PE metabolite contents in breastfed infants' urine and those in the corresponding breast milk were analyzed. The average concentrations of total PE metabolites in breast milk and urine were 0.27 and 0.23 nmol/mL, respectively. Genistein and enterolactone levels in the infant urine were positively correlated with their concentrations in the corresponding breast milk samples, which implies that urine excretion can be utilized as a noninvasive parameter for precise genistein and enterolactone intake assessment. Additionally, the efficiency of PE urine excretion showed significant differences across infants with different ages, genders, and durations of pregnancy.
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Affiliation(s)
- Jialing Min
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Nanchang University, Nanchang 330006, China
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Zitong Wang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Nanchang University, Nanchang 330006, China
- Queen Mary School, Medical College of Nanchang University, Nanchang 330006, China
| | - Chenglin Liang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Nanchang University, Nanchang 330006, China
| | - Wenjie Li
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Nanchang University, Nanchang 330006, China
| | - Jie Shao
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Nanchang University, Nanchang 330006, China
| | - Kunrui Zhu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Nanchang University, Nanchang 330006, China
| | - Lu Zhou
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Nanchang University, Nanchang 330006, China
| | - Jing Cheng
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Nanchang University, Nanchang 330006, China
| | - Shihong Luo
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Nanchang University, Nanchang 330006, China
| | - Lehan Yu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Nanchang University, Nanchang 330006, China
| | - Yudong Wu
- Department of Breast Surgery, Cancer Hospital of Jiangxi Province, Nanchang 330029, China
| | - Mingyong Xie
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Xiaojuan Hu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Nanchang University, Nanchang 330006, China
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Iino C, Shimoyama T, Iino K, Yokoyama Y, Chinda D, Sakuraba H, Fukuda S, Nakaji S. Daidzein Intake Is Associated with Equol Producing Status through an Increase in the Intestinal Bacteria Responsible for Equol Production. Nutrients 2019; 11:nu11020433. [PMID: 30791484 PMCID: PMC6412946 DOI: 10.3390/nu11020433] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 02/07/2019] [Accepted: 02/07/2019] [Indexed: 11/16/2022] Open
Abstract
Equol is a metabolite of isoflavone daidzein and has an affinity to estrogen receptors. Although equol is produced by intestinal bacteria, the association between the status of equol production and the gut microbiota has not been fully investigated. The aim of this study was to compare the intestinal bacteria responsible for equol production in gut microbiota between equol producer and non-producer subjects regarding the intake of daidzein. A total of 1044 adult subjects who participated in a health survey in Hirosaki city were examined. The concentration of equol in urine was measured by high-performance liquid chromatography. The relative abundances of 8 bacterial species responsible for equol production in the gut microbiota was assessed using 16S rRNA amplification. There were 458 subjects identified as equol producers. The proportion of equol production status and the intake of daidzein increased with age. Daily intake of daidzein was larger in equol-producer. The intestinal bacteria, which convert daidzein to equol were present in both equol producers and non-producers. However, the relative abundance and the prevalence of Asaccharobacter celatus and Slackia isoflavoniconvertens were significantly higher in equol producers than those in equol non-producers. The intestinal bacteria that convert daidzein to equol are present in not only the equol producers but also in the non-producers. The daidzein intake is associated with the equol production status through an increase of A. celatus and S. isoflavoniconvertens in the gut microbiota.
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Affiliation(s)
- Chikara Iino
- Department of Gastroenterology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan.
| | | | - Kaori Iino
- Department of Obstetrics and Gynecology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan.
| | - Yoshihito Yokoyama
- Department of Obstetrics and Gynecology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan.
| | - Daisuke Chinda
- Department of Gastroenterology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan.
| | - Hirotake Sakuraba
- Department of Gastroenterology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan.
| | - Shinsaku Fukuda
- Department of Gastroenterology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan.
| | - Shigeyuki Nakaji
- Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan.
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