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Mori Y, Masuda M, Yoshida-Shimizu R, Aoyagi S, Adachi Y, Nguyen AT, Maruyama Y, Okumura Y, Kamei Y, Sakai M, Ohnishi K, Ohminami H, Taketani Y. All-trans retinoic acid induces lipophagy through the activation of the AMPK-Beclin1 signaling pathway and reduces Rubicon expression in adipocytes. J Nutr Biochem 2024; 126:109589. [PMID: 38295886 DOI: 10.1016/j.jnutbio.2024.109589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 12/27/2023] [Accepted: 01/22/2024] [Indexed: 02/18/2024]
Abstract
Lipophagy is defined as a lipolysis pathway that degrades lipid droplet (LD) via autophagy. All-trans retinoic acid (atRA), a metabolite of vitamin A, stimulates lipolysis through hormone-sensitive lipase and β-oxidation. However, the regulation of lipolysis by atRA-induced autophagy in adipocytes remains unclear. In this study, we investigated the effect of atRA on autophagy in epididymal fat of mice and the molecular mechanisms of autophagy in 3T3-L1 adipocytes. Western blotting showed that atRA decreased the expression of p62, a cargo receptor for autophagic degradation, and increased the expression of the lipidated LC3B (LC3B-II), an autophagy marker, in epididymal fat. Next, we confirmed that atRA increased autophagic flux in differentiated 3T3-L1 cells using the GFP-LC3-RFP-LC3ΔG probe. Immunofluorescent staining revealed that the colocalization of LC3B with perilipin increased in differentiated 3T3-L1 cells treated with atRA. The knockdown of Atg5, an essential gene in autophagy induction, partly suppressed the atRA-induced release of non-esterified fatty acid (NEFA) from LDs in differentiated 3T3-L1 cells. atRA time-dependently elicited the phosphorylation of AMPK and Beclin1, autophagy-inducing factors, in mature 3T3-L1 adipocytes. Inversely, atRA decreased the protein expression of Rubicon, an autophagy repressor, in differentiated 3T3-L1 cells and epididymal fat. Interestingly, the expression of ALDH1A1, atRA-synthesizing enzymes, increased in epididymal fat with decreased protein expression of Rubicon in aged mice. These results suggest that atRA may partially induce lipolysis through lipophagy by activating the AMPK-Beclin1 signaling pathway in the adipocytes and increased atRA levels may contribute to decreased Rubicon expression in the epididymal fat of aged mice. (248/250 words).
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Affiliation(s)
- Yuki Mori
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Tokushima 770-8503, Japan
| | - Masashi Masuda
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Tokushima 770-8503, Japan.
| | - Risa Yoshida-Shimizu
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Tokushima 770-8503, Japan
| | - Saki Aoyagi
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Tokushima 770-8503, Japan
| | - Yuichiro Adachi
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Tokushima 770-8503, Japan
| | - Anh The Nguyen
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Tokushima 770-8503, Japan
| | - Yusuke Maruyama
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Tokushima 770-8503, Japan
| | - Yosuke Okumura
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Tokushima 770-8503, Japan
| | - Yuki Kamei
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Tokushima 770-8503, Japan
| | - Maiko Sakai
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Tokushima 770-8503, Japan
| | - Kohta Ohnishi
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Tokushima 770-8503, Japan
| | - Hirokazu Ohminami
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Tokushima 770-8503, Japan
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Tokushima 770-8503, Japan
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2
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Okumura Y, Abe K, Sakai S, Kamei Y, Mori Y, Adachi Y, Takikawa M, Kitamura A, Ohminami H, Ohnishi K, Masuda M, Kambe T, Yamamoto H, Taketani Y. Elevated luminal inorganic phosphate suppresses intestinal Zn absorption in 5/6 nephrectomized rats. Am J Physiol Renal Physiol 2024; 326:F411-F419. [PMID: 38234299 DOI: 10.1152/ajprenal.00310.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 12/25/2023] [Accepted: 01/16/2024] [Indexed: 01/19/2024] Open
Abstract
Zinc (Zn) is an essential trace element in various biological processes. Chronic kidney disease (CKD) often leads to hypozincemia, resulting in further progression of CKD. In CKD, intestinal Zn absorption, the main regulator of systemic Zn metabolism, is often impaired; however, the mechanism underlying Zn malabsorption remains unclear. Here, we evaluated intestinal Zn absorption capacity in a rat model of CKD induced by 5/6 nephrectomy (5/6 Nx). Rats were given Zn and the incremental area under the plasma Zn concentration-time curve (iAUC) was measured as well as the expression of ZIP4, an intestinal Zn transporter. We found that 5/6 Nx rats showed lower iAUC than sham-operated rats, but expression of ZIP4 protein was upregulated. We therefore focused on other Zn absorption regulators to explore the mechanism by which Zn absorption was substantially decreased. Because some phosphate compounds inhibit Zn absorption by coprecipitation and hyperphosphatemia is a common symptom in advanced CKD, we measured inorganic phosphate (Pi) levels. Pi was elevated in not only serum but also the intestinal lumen of 5/6 Nx rats. Furthermore, intestinal intraluminal Pi administration decreased the iAUC in a dose-dependent manner in normal rats. In vitro, increased Pi concentration decreased Zn solubility under physiological conditions. Furthermore, dietary Pi restriction ameliorated hypozincemia in 5/6 Nx rats. We conclude that hyperphosphatemia or excess Pi intake is a factor in Zn malabsorption and hypozincemia in CKD. Appropriate management of hyperphosphatemia will be useful for prevention and treatment of hypozincemia in patients with CKD.NEW & NOTEWORTHY We demonstrated that elevated intestinal luminal Pi concentration can suppress intestinal Zn absorption activity without decreasing the expression of the associated Zn transporter. Increased intestinal luminal Pi led to the formation of an insoluble complex with Zn while dietary Pi restriction or administration of a Pi binder ameliorated hypozincemia in chronic kidney disease model rats. Therefore, modulation of dietary Pi by Pi restriction or a Pi binder might be useful for the treatment of hypozincemia and hyperphosphatemia.
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Affiliation(s)
- Yosuke Okumura
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, Tokushima, Japan
| | - Kotaro Abe
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, Tokushima, Japan
| | - Shoko Sakai
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, Tokushima, Japan
| | - Yuki Kamei
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, Tokushima, Japan
- Department of Food and Nutrition, Tokushima University Graduate School of Medical Nutrition, Tokushima, Japan
| | - Yuki Mori
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, Tokushima, Japan
| | - Yuichiro Adachi
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, Tokushima, Japan
| | - Masaki Takikawa
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, Tokushima, Japan
| | - Ayano Kitamura
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, Tokushima, Japan
| | - Hirokazu Ohminami
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, Tokushima, Japan
| | - Kohta Ohnishi
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, Tokushima, Japan
| | - Masashi Masuda
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, Tokushima, Japan
| | - Taiho Kambe
- Division of Integrated Life Science, Department of Applied Molecular Biology, Graduate School of Biostudies, Kyoto University, Kyoto, Japan
| | - Hironori Yamamoto
- Department of Health and Nutrition, Faculty of Human Life, Jin-ai University, Echizen, Japan
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, Tokushima, Japan
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Nishioka S, Kokura Y, Momosaki R, Taketani Y. Measures for Identifying Malnutrition in Geriatric Rehabilitation: A Scoping Review. Nutrients 2024; 16:223. [PMID: 38257116 PMCID: PMC10820477 DOI: 10.3390/nu16020223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/08/2024] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
Malnutrition is a common condition in geriatric rehabilitation settings; however, the accuracy and predictive validity of the measures to identify malnutrition have not been established. The current scoping review followed the Joanna Briggs Institute's evidence synthesis manual and the Preferred Reporting Items for Systematic Reviews and Meta-Analysis Extension for Scoping Reviews checklist. Literature published through September 2023 was searched using MEDLINE and CINAHL. The inclusion criteria selected studies reporting malnutrition measures, which include static body weight and weight loss. Identified tools were classified as nutritional screening tools, nutritional assessment tools, or diagnostic criteria. The domains of each tool/criterion and their accuracy and predictive validity were extracted. Fifty-six articles fulfilled the inclusion criteria, and six nutritional screening tools, three nutritional assessment tools, and three diagnostic criteria for malnutrition were identified. These measures consisted of various phenotypes, e.g., weight loss, causes such as inflammation/disease, and risk factors of malnutrition, e.g., functional impairment. The predictive validity of nutritional screening tools (n = 6) and malnutrition diagnostic criteria (n = 5) were inconsistently reported, whereas those for nutritional assessment tools were scarce (n = 1). These findings highlight the need to distinguish the functional impairment of nutritional origin from that of non-nutritional origin in nutritional assessment procedures, and the need to study the accuracy and the predictive validity of these measures in geriatric rehabilitation patients.
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Affiliation(s)
- Shinta Nishioka
- Department of Clinical Nutrition and Food Service, Nagasaki Rehabilitation Hospital, 4-11, Gin-yamachi, Nagasaki 850-0854, Japan
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15, Kuramoto-cho, Tokushima 770-8503, Japan;
| | - Yoji Kokura
- Department of Nutrition Management, Keiju Hatogaoka Integrated Facility for Medical and Long-Term Care, 15-39-8, Mugigaura, Anamizu, Hosu-gun 927-0023, Japan;
| | - Ryo Momosaki
- Department of Rehabilitation Medicine, Mie University Graduate School of Medicine, 2-174, Edobashi, Tsu 514-8507, Mie, Japan;
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15, Kuramoto-cho, Tokushima 770-8503, Japan;
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Tsumura A, Yamanaka-Okumura H, Kawakami H, Yamamoto S, Oura M, Tatano H, Ohminami H, Masuda M, Taketani Y. Investigation of Amino Acid and Fatty Acid Profiles of Japanese Diets Using the Food Exchange Lists for Diabetes Diet. J Nutr Sci Vitaminol (Tokyo) 2024; 70:25-35. [PMID: 38417849 DOI: 10.3177/jnsv.70.25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2024]
Abstract
Dietary Reference Intakes for Japanese provide target values for proteins, fats, and carbohydrates. However, they do not provide information on reference values for amino acids (AAs) and fatty acids (FAs), which determine the quality of foods in detail. Therefore, we evaluated AAs and FAs using the Food Exchange Lists-Dietary Guidance for Persons with Diabetes (in Japanese) Utilization, Second Edition Sample Menus and Practice (FELD) as an ideal Japanese diet. Based on FELD, 15 different daily meal patterns were employed with combinations of three levels of carbohydrates %energy (high carbohydrate [HC], 60%; middle carbohydrate [MC], 55%; and low carbohydrate [LC], 50%) and five levels of energy (1,200-2,000 kcal). Using the Japanese Food Composition Table 2020 adjusted for 1,000 kcal, 18 AAs, 49 FAs, and calorie densities (CDs, kcal/g) were calculated and compared among the three groups. Dietary AA was rich in glutamic acid, aspartic acid, and leucine; in order, no significant differences were observed among HC, MC, and LC for 18 AAs. Dietary FA was higher for 18:1 total, 16:0, and 18:2 n-6. Moreover, 16:0, 20:0, and 18:1 total in LC and 22:0 and 18:3 n-3 in MC were significantly higher than those in HC. The HC, MC, and LC CD was low at 0.82, 0.84, and 0.93 kcal/g, respectively. No significant differences in 18 AAs and CD were noted among HC, MC, and LC in FELD; however, significant differences were observed in the FA profiles. This study suggests the importance of evaluating diet using AA and FA units.
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Affiliation(s)
- Ayari Tsumura
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Hisami Yamanaka-Okumura
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School
- Department of Food Science and Nutrition, Doshisha Women College of Liberal Arts
| | - Hana Kawakami
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Shiori Yamamoto
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Mayu Oura
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Hiroshi Tatano
- Department of Health and Nutrition, Faculty of Nursing and Nutrition, The University of Shimane
| | - Hirokazu Ohminami
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Masashi Masuda
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School
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5
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Oda N, Sugihara K, Uebanso T, Ohminami H, Ohnishi K, Masuda M, Yamanaka-Okumura H, Taketani Y. Dietary phosphate disturbs of gut microbiome in mice. J Clin Biochem Nutr 2023; 73:221-227. [PMID: 37970557 PMCID: PMC10636580 DOI: 10.3164/jcbn.23-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 02/25/2023] [Indexed: 11/17/2023] Open
Abstract
Disorder of phosphate metabolism is a common pathological condition in chronic kidney disease patients. Excessive intake of dietary phosphate deteriorates chronic kidney disease and various complications including cardiovascular and infectious diseases. Recent reports have demonstrated that gut microbiome disturbance is associated with both the etiology and progression of chronic kidney disease. However, the relationship between dietary phosphate and gut microbiome remains unknown. Here, we examined the effects of excessive intake of phosphate on gut microbiome. Five-week-old male C57BL/6J mice were fed either control diet or high phosphate diet for eight weeks. Analysis of the gut microbiota was carried out using MiSeq next generation sequencer, and short-chain fatty acids were determined with GC-MS. In analysis of gut microbiota, significantly increased in Erysipelotrichaceae and decreased in Ruminococcaceae were observed in high phosphate diet group. Furthermore, high phosphate diet induced reduction of microbial diversity and decreased mRNA levels of colonic tight junction markers. These results suggest that the excessive intake of dietary phosphate disturbs gut microbiota and affects intestinal barrier function.
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Affiliation(s)
- Naoko Oda
- Department of Clinical Nutrition and Food Management, Institute of Biochemical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Kohei Sugihara
- Department of Clinical Nutrition and Food Management, Institute of Biochemical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Takashi Uebanso
- Department of Preventive Environment and Nutrition, Institute of Biochemical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Hirokazu Ohminami
- Department of Clinical Nutrition and Food Management, Institute of Biochemical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Kohta Ohnishi
- Department of Clinical Nutrition and Food Management, Institute of Biochemical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Masashi Masuda
- Department of Clinical Nutrition and Food Management, Institute of Biochemical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Hisami Yamanaka-Okumura
- Department of Clinical Nutrition and Food Management, Institute of Biochemical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Institute of Biochemical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
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6
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Kamei Y, Okumura Y, Adachi Y, Mori Y, Sakai M, Ohnishi K, Ohminami H, Masuda M, Yamanaka-Okumura H, Taketani Y. Humoral and cellular factors inhibit phosphate-induced vascular calcification during the growth period. J Clin Biochem Nutr 2023; 73:198-204. [PMID: 37970550 PMCID: PMC10636584 DOI: 10.3164/jcbn.23-11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 02/25/2023] [Indexed: 11/17/2023] Open
Abstract
Hyperphosphatemia is an independent and non-classical risk factor of cardiovascular disease and mortality in patients with chronic kidney disease (CKD). Increased levels of extracellular inorganic phosphate (Pi) are known to directly induce vascular calcification, but the detailed underlying mechanism has not been clarified. Although serum Pi levels during the growth period are as high as those observed in hyperphosphatemia in adult CKD, vascular calcification does not usually occur during growth. Here, we have examined whether the defence system against Pi-induced vascular calcification can exist during the growth period using mice model. We found that calcification propensity of young serum (aged 3 weeks) was significantly lower than that of adult serum (10 months), possibly due to high fetuin-A levels. In addition, when the aorta was cultured in high Pi medium in vitro, obvious calcification was observed in the adult aorta but not in the young aorta. Furthermore, culture in high Pi medium increased the mRNA level of tissue-nonspecific alkaline phosphatase (TNAP), which degrades pyrophosphate, only in the adult aorta. Collectively, our findings indicate that the aorta in growing mouse may be resistant to Pi-induced vascular calcification via a mechanism in which high serum fetuin-A levels and suppressed TNAP expression.
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Affiliation(s)
- Yuki Kamei
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
- Department of Food and Nutrition, Tokushima University Graduate School of Medical Nutrition, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Yosuke Okumura
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Yuichiro Adachi
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Yuki Mori
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Maiko Sakai
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Kohta Ohnishi
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Hirokazu Ohminami
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Masashi Masuda
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Hisami Yamanaka-Okumura
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
- Department of Food Science and Nutrition, Doshisha Women’s College of Liberal Arts, Teramachi Nishi-iru, Imadegawa-dori, Kamigyo-ku, Kyoto 602-0893, Japan
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
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7
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Kohno K, Umemoto N, Tsutsumi R, Kawakami A, Sakaue H, Tamura K, Morishita T, Taketani Y, Uyama K, Takeda E. Diaper-zero program (prompted voiding care) improves diaper use in nursing home residents. J Med Invest 2023; 70:221-225. [PMID: 37164725 DOI: 10.2152/jmi.70.221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
With an aging population, the number of older adults admitted to nursing homes has increased. Diapers are often used to manage nursing home resident urinary incontinence, yet only one-third of these required assistance from caregivers to urinate. Unnecessary diaper use was reported in 23.9% of peop1e, mostly for precautionary purposes. In this study, the Diaper-zero program caregivers asked residents regularly (every 2-3 h) whether they required voiding and prompted them to void. Over 11 months, the effects on 38 nursing home residents' diaper use, nursing care level, physical activity, daily energy, and water intake were measured. A higher rate of diaper wearing was initially observed with lower daily energy and water intakes at the beginning of the Diaper-zero program, but this association was not observed after 11 months of the program. The diaper usage rate decreased significantly from 71.1% to 47.4% after 11 months. During this period, for all subjects, nursing care level, physical activity, and total daily intakes of energy and water were unchanged. In conclusion, this program enhances the desire to void, minimizing diaper usage, thus protecting the human dignity of nursing home residents. J. Med. Invest. 70 : 221-225, February, 2023.
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Affiliation(s)
- Kazuyo Kohno
- Kenshokai Gakuen College for Health and Welfare, Tokushima, Japan
| | - Nobuhiko Umemoto
- Kenshokai Group, Nursing Home "Center Villege" for aged persons, Tokushima, Japan
| | - Rie Tsutsumi
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Ayuka Kawakami
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Hiroshi Sakaue
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Kyousuke Tamura
- Kenshokai Gakuen College for Health and Welfare, Tokushima, Japan
| | | | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Kimihito Uyama
- Kenshokai Group, Nursing Home "Center Villege" for aged persons, Tokushima, Japan
| | - Eiji Takeda
- Kenshokai Gakuen College for Health and Welfare, Tokushima, Japan
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8
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Yimamu Y, Ohtani A, Takei Y, Furuichi A, Kamei Y, Yamanaka-Okumura H, Ohminami H, Masuda M, Miyazaki M, Yamamoto H, Taketani Y. 25-hydroxyvitamin D-1α-hydroxylase (CYP27B1) induces ectopic calcification. J Clin Biochem Nutr 2022; 71:103-111. [PMID: 36213783 PMCID: PMC9519415 DOI: 10.3164/jcbn.22-16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Accepted: 02/15/2022] [Indexed: 12/04/2022] Open
Abstract
Vascular calcification is an important pathogenesis related to cardiovascular disease and high mortality rate in chronic kidney disease (CKD) patients. It has been well-known that hyper-phosphatemia induces osteochondrogenic transition of vascular smooth muscle cells (VSMCs) resulting ectopic calcification in aortic media, cardiac valve, and kidney. However, the detailed mechanism of the ectopic calcification has been not clarified yet. Here, we found that the co-localization of CYP27B1 with the calcified lesions of aorta and arteries in kidney of klotho mutant (kl/kl) mice, and then investigated the role of CYP27B1 in the mineralization of the VSMCs. Under high phosphate condition, overexpression of CYP27B1 induced calcification and osteocalcin mRNA expression in the VSMCs. Inversely, siRNA-CYP27B1 inhibited high phosphate-induced calcification of the VSMCs. We also found that the accumulated CYP27B1 protein was glycosylated in the kidney of kl/kl mice. Therefore, overexpression of CYP27B1-N310A and CYP27B1-T439A, which are a mutation for N-linked glycosylation site (N310A) and a mutation for O-linked glycosylation site (T439A) in CYP27B1, decreased calcium deposition and expression of RUNX2 induced by high phosphate medium in VSMCs compared with wild-type CYP27B1. These results suggest that extra-renal expression of glycosylated CYP27B1 would be required for ectopic calcification of VSMCs under hyperphosphatemia.
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Affiliation(s)
- Yilimulati Yimamu
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Ayako Ohtani
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Yuichiro Takei
- Faculty of Nutrition, University of Kochi, 2751-1, Ike, Kochi 781-8515, Japan
| | - Airi Furuichi
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Yuki Kamei
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Hisami Yamanaka-Okumura
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Hirokazu Ohminami
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Masashi Masuda
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Makoto Miyazaki
- Division of Renal Diseases, Department of Medicine, University of Colorado Anschutz Medical Campus, 13001 East 17th Place, Aurora, CO 80045, USA
| | - Hironori Yamamoto
- Department of Health and Nutrition, Faculty of Human Life, Jin-ai University, 3-1-1 Ohde-cho, Echizen, Fukui 915-8568, Japan
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Medical Nutrition, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
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9
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Ikezumi Y, Matsuura Y, Morishita T, Ide N, Kitada I, Katayama T, Tsutsumi R, Sakaue H, Taketani Y, Sairyo K, Takeda E. Necessity of daily 1000-IU vitamin D supplementation for maintaining a sufficient vitamin D status. J Med Invest 2022; 69:135-140. [PMID: 35466135 DOI: 10.2152/jmi.69.135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
The changes in the serum 25-hydroxyvitamin D (25(OH)D) concentrations after daily 1000-IU vitamin D intake for 3 months (3-month-VD), 6 months (6-month-VD) and then 6-month cessation of vitamin D in-take (6-month-VD cessation) were examined. The serum 25(OH)D levels in 11 male and 16 female subjects were 12.1±3.5 ng/mL at baseline, increased to 27.1±4.7 ng/mL at 3-month-VD, 28.5±5.1 ng/mL at 6-month-VD and decreased to 16.4±4.0 ng/mL at 6-month-VD cessation. The present study suggested that a vitamin D intake of 1000 IU/day is required to maintain the 25(OH) D concentration at 30 ng/mL or higher without vitamin D intoxication. J. Med. Invest. 69 : 135-140, February, 2022.
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Affiliation(s)
- Yuya Ikezumi
- Kenshokai Gakuen College for Health and Welfare, Tokushima, Japan
| | - Yasushi Matsuura
- Kenshokai Gakuen College for Health and Welfare, Tokushima, Japan
| | | | - Noriko Ide
- Kenshokai Gakuen College for Health and Welfare, Tokushima, Japan
| | - Isao Kitada
- Kenshokai Gakuen College for Health and Welfare, Tokushima, Japan
| | - Takafumi Katayama
- Department of Statistics and Computer Science, College of Nursing Art and Science, University of Hyogo, Akashi, Japan
| | - Rie Tsutsumi
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Hiroshi Sakaue
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Koichi Sairyo
- Department of Orthopedics, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Eiji Takeda
- Kenshokai Gakuen College for Health and Welfare, Tokushima, Japan
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10
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Adachi Y, Masuda M, Sakakibara I, Uchida T, Niida Y, Mori Y, Kamei Y, Okumura Y, Ohminami H, Ohnishi K, Yamanaka-Okumura H, Nikawa T, Taketani Y. All-trans retinoic acid changes muscle fiber type via increasing GADD34 dependent on MAPK signal. Life Sci Alliance 2022; 5:5/7/e202101345. [PMID: 35318262 PMCID: PMC8960774 DOI: 10.26508/lsa.202101345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 03/09/2022] [Accepted: 03/11/2022] [Indexed: 11/25/2022] Open
Abstract
ATRA increases GADD34 expression by decreasing the expression of Six1, which down-regulates the transcriptional activity with TLE3 and increasing mRNA stability through blocking the interaction between TTP and ARE on GADD34 mRNA, resulting in muscle fiber type change. All-trans retinoic acid (ATRA) increases the sensitivity to unfolded protein response in differentiating leukemic blasts. The downstream transcriptional factor of PERK, a major arm of unfolded protein response, regulates muscle differentiation. However, the role of growth arrest and DNA damage-inducible protein 34 (GADD34), one of the downstream factors of PERK, and the effects of ATRA on GADD34 expression in muscle remain unclear. In this study, we identified ATRA increased the GADD34 expression independent of the PERK signal in the gastrocnemius muscle of mice. ATRA up-regulated GADD34 expression through the transcriptional activation of GADD34 gene via inhibiting the interaction of homeobox Six1 and transcription co-repressor TLE3 with the MEF3-binding site on the GADD34 gene promoter in skeletal muscle. ATRA also inhibited the interaction of TTP, which induces mRNA degradation, with AU-rich element on GADD34 mRNA via p-38 MAPK, resulting in the instability of GADD34 mRNA. Overexpressed GADD34 in C2C12 cells changes the type of myosin heavy chain in myotubes. These results suggest ATRA increases GADD34 expression via transcriptional and post-transcriptional regulation, which changes muscle fiber type.
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Affiliation(s)
- Yuichiro Adachi
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Masashi Masuda
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Iori Sakakibara
- Department of Nutritional Physiology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Takayuki Uchida
- Department of Nutritional Physiology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yuki Niida
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yuki Mori
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yuki Kamei
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yosuke Okumura
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Hirokazu Ohminami
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Kohta Ohnishi
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Hisami Yamanaka-Okumura
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Takeshi Nikawa
- Department of Nutritional Physiology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
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11
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Matsuura Y, Morishita T, Sato M, Sumida N, Katayama T, Tsutsumi R, Sakaue H, Taketani Y, Sairyo K, Kawaura A, Takeda E. Effects of daily 1,000-IU vitamin D-fortified milk intake on skeletal muscle mass, power, physical function and nutrition status in Japanese. J Med Invest 2021; 68:249-255. [PMID: 34759139 DOI: 10.2152/jmi.68.249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
An intervention study was conducted to investigate the effects of daily 1,000-IU vitamin D-fortified milk intake on skeletal muscle mass, power, physical function and nutrition status in 26 healthy people and 8 older adults living in a nursing home. The serum 25-hydroxyvitamin D [25(OH)D] level was 13.4 ± 0.8 ng / mL and it markedly increased to 29.6 ± 0.9 ng / mL after daily 1000-IU vitamin D-fortified milk intake for 6 months. Handgrip strength (kg) also significantly increased in the 21-50 years and total groups, and male subjects, and the timed up and go test significantly improved in the 21-50 years and total groups, and female subjects after 6-month vitamin D intake. However, there were no significant differences between baseline and post-treatment in the Barthel Index (BI), walking speed (m / sec) or skeletal muscle mass (kg, % of BW, kg / m2). Therefore, the present study suggested that vitamin D-fortified milk intake is effective at improving muscle strength and physical function in Japanese, although further studies are needed, particularly for older adults. J. Med. Invest. 68 : 249-255, August, 2021.
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Affiliation(s)
- Yasushi Matsuura
- Kenshokai Gakuen College for Health and Welfare, Tokushima, Japan
| | | | - Michiko Sato
- Kenshokai Gakuen College for Health and Welfare, Tokushima, Japan
| | - Nami Sumida
- Kenshokai Gakuen College for Health and Welfare, Tokushima, Japan
| | - Takafumi Katayama
- Department of Statistics and Computer Science, College of Nursing Art and Science, University of Hyogo, Akashi, Japan
| | - Rie Tsutsumi
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Hiroshi Sakaue
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Koichi Sairyo
- Department of Orthopedics, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Akihiko Kawaura
- Kenshokai Gakuen College for Health and Welfare, Tokushima, Japan
| | - Eiji Takeda
- Kenshokai Gakuen College for Health and Welfare, Tokushima, Japan
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12
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Nishioka S, Wakabayashi H, Kayashita J, Taketani Y, Momosaki R. Predictive validity of the Mini Nutritional Assessment Short-Form for rehabilitation patients: A retrospective analysis of the Japan Rehabilitation Nutrition Database. J Hum Nutr Diet 2021; 34:881-889. [PMID: 33713369 DOI: 10.1111/jhn.12887] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 01/26/2021] [Accepted: 03/02/2021] [Indexed: 12/31/2022]
Abstract
BACKGROUND Malnutrition is associated with worse outcome in rehabilitation patients; however, appropriate malnutrition screening tools for this population have not been investigated. We examined the predictive validity of specific cut-off values of the Mini Nutritional Assessment Short-Form version 2 (MNA-SFv2) for Japanese rehabilitation patients. METHODS This retrospective cohort study analyzed adult patients (≥ 20 years) in the Japan Rehabilitation Nutrition Database who were in convalescent rehabilitation wards after stroke or hip fracture. Patients were classified into three categories based on MNA-SFv2 original (0-7, 8-11 and 12-14 points, respectively) or modified (0-5, 6-7 and 8-14 points, respectively) cut-off values: malnutrition, at risk of malnutrition or well-nourished. Functional independence measure (FIM) and home discharge were compared between the categories. RESULTS Overall, 489 patients were analyzed. Based on the MNA-SFv2 original and modified cut-off values, 64.4% and 36.0% were malnourished, 32.3% and 28.4% were at risk of malnutrition, and 3.3% and 35.6% were well-nourished, respectively. Malnutrition defined by both cut-off values was significantly associated with the FIM at admission, whereas only those defined by modified cut-off values predicted the FIM at discharge (B, -7.1; 95% confidence interval = -12.3 to -1.9). Neither original, nor modified cut-off values predicted discharge to home and long-term care facilities. CONCLUSIONS An MNA-SFv2 score of 0-5 points may be useful to identify Japanese patients with poor outcomes in a rehabilitation setting.
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Affiliation(s)
- Shinta Nishioka
- Department of Clinical Nutrition and Food Services, Nagasaki Rehabilitation Hospital, Nagasaki, Japan
| | - Hidetaka Wakabayashi
- Department of Rehabilitation Medicine, Tokyo Women's Medical University Hospital, Shinjuku-ku, Japan
| | - Jun Kayashita
- Department of Health Sciences, Faculty of Human Culture and Science, Prefectural University of Hiroshima, Hiroshima, Japan
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Ryo Momosaki
- Department of Rehabilitation Medicine, Mie University Graduate School of Medicine, Tsu, Japan
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13
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Nishioka S, Wakabayashi H, Kayashita J, Taketani Y, Momosaki R. Predictive validity of the mini nutritional assessment short-form for rehabilitation patients: A retrospective analysis. Clin Nutr ESPEN 2020. [DOI: 10.1016/j.clnesp.2020.09.596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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14
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Ohnishi K, Yano S, Fujimoto M, Sakai M, Harumoto E, Furuichi A, Masuda M, Ohminami H, Yamanaka-Okumura H, Hara T, Taketani Y. Identification of Dietary Phytochemicals Capable of Enhancing the Autophagy Flux in HeLa and Caco-2 Human Cell Lines. Antioxidants (Basel) 2020; 9:antiox9121193. [PMID: 33261065 PMCID: PMC7760668 DOI: 10.3390/antiox9121193] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 11/20/2020] [Accepted: 11/25/2020] [Indexed: 12/24/2022] Open
Abstract
Autophagy is a major degradation system for intracellular macromolecules. Its decline with age or obesity is related to the onset and development of various intractable diseases. Although dietary phytochemicals are expected to enhance autophagy for preventive medicine, few studies have addressed their effects on the autophagy flux, which is the focus of the current study. Herein, 67 dietary phytochemicals were screened using a green fluorescent protein (GFP)-microtubule-associated protein light chain 3 (LC3)-red fluorescent protein (RFP)-LC3ΔG probe for the quantitative assessment of autophagic degradation. Among them, isorhamnetin, chrysoeriol, 2,2',4'-trihydroxychalcone, and zerumbone enhanced the autophagy flux in HeLa cells. Meanwhile, analysis of the structure-activity relationships indicated that the 3'-methoxy-4'-hydroxy group on the B-ring in the flavone skeleton and an ortho-phenolic group on the chalcone B-ring were crucial for phytochemicals activities. These active compounds were also effective in colon carcinoma Caco-2 cells, and some of them increased the expression of p62 protein, a typical substrate of autophagic proteolysis, indicating that phytochemicals impact p62 levels in autophagy-dependent and/or -independent manners. In addition, these compounds were characterized by distinct modes of action. While isorhamnetin and chrysoeriol enhanced autophagy in an mTOR signaling-dependent manner, the actions of 2,2',4'-trihydroxychalcone and zerumbone were independent of mTOR signaling. Hence, these dietary phytochemicals may prove effective as potential preventive or therapeutic strategies for lifestyle-related diseases.
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Affiliation(s)
- Kohta Ohnishi
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan; (M.F.); (M.S.); (E.H.); (A.F.); (M.M.); (H.O.); (H.Y.-O.)
- Correspondence: (K.O.); (T.H.); (Y.T.); Tel.: +81-88-633-9595 (K.O. & Y.T.); +81-4-2947-6763 (T.H.)
| | - Satoshi Yano
- Laboratory of Food and Life Science, Faculty of Human Sciences, Waseda University, 2-579-15 Mikajima, Tokorozawa 359-1192, Japan;
| | - Moe Fujimoto
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan; (M.F.); (M.S.); (E.H.); (A.F.); (M.M.); (H.O.); (H.Y.-O.)
| | - Maiko Sakai
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan; (M.F.); (M.S.); (E.H.); (A.F.); (M.M.); (H.O.); (H.Y.-O.)
| | - Erika Harumoto
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan; (M.F.); (M.S.); (E.H.); (A.F.); (M.M.); (H.O.); (H.Y.-O.)
| | - Airi Furuichi
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan; (M.F.); (M.S.); (E.H.); (A.F.); (M.M.); (H.O.); (H.Y.-O.)
| | - Masashi Masuda
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan; (M.F.); (M.S.); (E.H.); (A.F.); (M.M.); (H.O.); (H.Y.-O.)
| | - Hirokazu Ohminami
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan; (M.F.); (M.S.); (E.H.); (A.F.); (M.M.); (H.O.); (H.Y.-O.)
| | - Hisami Yamanaka-Okumura
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan; (M.F.); (M.S.); (E.H.); (A.F.); (M.M.); (H.O.); (H.Y.-O.)
| | - Taichi Hara
- Laboratory of Food and Life Science, Faculty of Human Sciences, Waseda University, 2-579-15 Mikajima, Tokorozawa 359-1192, Japan;
- Correspondence: (K.O.); (T.H.); (Y.T.); Tel.: +81-88-633-9595 (K.O. & Y.T.); +81-4-2947-6763 (T.H.)
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan; (M.F.); (M.S.); (E.H.); (A.F.); (M.M.); (H.O.); (H.Y.-O.)
- Correspondence: (K.O.); (T.H.); (Y.T.); Tel.: +81-88-633-9595 (K.O. & Y.T.); +81-4-2947-6763 (T.H.)
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15
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Narasaki Y, Yamasaki M, Matsuura S, Morinishi M, Nakagawa T, Matsuno M, Katsumoto M, Nii S, Fushitani Y, Sugihara K, Noda T, Yoneda T, Masuda M, Yamanaka-Okumura H, Takeda E, Sakaue H, Yamamoto H, Taketani Y. Phosphatemic Index Is a Novel Evaluation Tool for Dietary Phosphorus Load: A Whole-Foods Approach. J Ren Nutr 2020; 30:493-502. [PMID: 32778471 DOI: 10.1053/j.jrn.2020.02.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 01/22/2020] [Accepted: 02/08/2020] [Indexed: 12/22/2022] Open
Abstract
OBJECTIVE Dietary phosphorus (P) restriction is crucial to treat hyperphosphatemia and reduce cardiovascular disease risk and mortality in patients with chronic kidney disease (CKD) and the wider population. Various methods for dietary P restriction exist, but the bioavailability of P in food should also be considered when making appropriate food choices to maintain patients' quality of life. Here, we propose the "Phosphatemic Index" (PI) as a novel tool for evaluating dietary P load based on P bioavailability; we also evaluated the effect of continuous intake of different PI foods in mixed meals on serum intact fibroblast growth factor 23 concentration. DESIGN AND METHODS A 2-stage crossover study was conducted: Study 1: 20 healthy participants consumed 10 different foods containing 200 mg of P, and the PI was calculated from the area under the curve of a time versus serum P concentration curve; Study 2: 10 healthy participants consumed 4 different test meals (low, medium, or high PI meals or a control) over a 5-day period. RESULTS Study 1 showed milk and dairy products had high PI values, pork and ham had medium PI values, and soy and tofu had low PI values. In Study 2, ingestion of high PI test meals showed higher fasting serum intact fibroblast growth factor 23 levels and lower serum 1,25-dihydroxyvitamin D levels compared with ingestion of low PI test meals. CONCLUSION These findings suggest that the PI can usefully evaluate the dietary P load of various foods and may help to make appropriate food choices for dietary P restriction in CKD patients.
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Affiliation(s)
- Yoko Narasaki
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Nutrition and Biosciences, Tokushima, Japan; Japan Society for the Promotion of Science, Tokyo, Japan
| | - Michiyo Yamasaki
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Nutrition and Biosciences, Tokushima, Japan
| | - Sayaka Matsuura
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Nutrition and Biosciences, Tokushima, Japan
| | - Mayumi Morinishi
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Nutrition and Biosciences, Tokushima, Japan
| | - Tomomi Nakagawa
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Nutrition and Biosciences, Tokushima, Japan
| | - Mami Matsuno
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Nutrition and Biosciences, Tokushima, Japan
| | - Misaki Katsumoto
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Nutrition and Biosciences, Tokushima, Japan
| | - Sachi Nii
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Nutrition and Biosciences, Tokushima, Japan
| | - Yuka Fushitani
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Nutrition and Biosciences, Tokushima, Japan
| | - Kohei Sugihara
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Nutrition and Biosciences, Tokushima, Japan
| | - Tsuneyuki Noda
- Saga Nutraceuticals Research Institute, Otsuka Pharmaceutical Co., Ltd., Yoshinogari, Saga, Japan
| | - Takeshi Yoneda
- Saga Nutraceuticals Research Institute, Otsuka Pharmaceutical Co., Ltd., Yoshinogari, Saga, Japan
| | - Masashi Masuda
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Nutrition and Biosciences, Tokushima, Japan
| | - Hisami Yamanaka-Okumura
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Nutrition and Biosciences, Tokushima, Japan
| | - Eiji Takeda
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Nutrition and Biosciences, Tokushima, Japan
| | - Hiroshi Sakaue
- Department of Nutrition and Metabolism, Tokushima University Graduate School of Nutrition and Biosciences, Tokushima, Japan
| | | | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Tokushima University Graduate School of Nutrition and Biosciences, Tokushima, Japan.
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16
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Niida Y, Masuda M, Adachi Y, Yoshizawa A, Ohminami H, Mori Y, Ohnishi K, Yamanaka-Okumura H, Uchida T, Nikawa T, Yamamoto H, Miyazaki M, Taketani Y. Reduction of stearoyl-CoA desaturase (SCD) contributes muscle atrophy through the excess endoplasmic reticulum stress in chronic kidney disease. J Clin Biochem Nutr 2020; 67:179-187. [PMID: 33041516 PMCID: PMC7533850 DOI: 10.3164/jcbn.20-24] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 03/11/2020] [Indexed: 12/25/2022] Open
Abstract
Skeletal muscle atrophy is associated with mortality and poor prognosis in patients with chronic kidney disease (CKD). However, underlying mechanism by which CKD causes muscle atrophy has not been completely understood. The quality of lipids (lipoquality), which is defined as the functional features of diverse lipid species, has recently been recognized as the pathology of various diseases. In this study, we investigated the roles of the stearoyl-CoA desaturase (SCD), which catalyzes the conversion of saturated fatty acids into monounsaturated fatty acids, in skeletal muscle on muscle atrophy in CKD model animals. In comparison to control rats, CKD rats decreased the SCD activity and its gene expression in atrophic gastrocnemius muscle. Next, oleic acid blocked the reduction of the thickness of C2C12 myotubes and the increase of the endoplasmic reticulum stress induced by SCD inhibitor. Furthermore, endoplasmic reticulum stress inhibitor ameliorated CKD-induced muscle atrophy (the weakness of grip strength and the decrease of muscle fiber size of gastrocnemius muscle) in mice and the reduction of the thickness of C2C12 myotubes by SCD inhibitor. These results suggest that the repression of SCD activity causes muscle atrophy through excessive endoplasmic reticulum stress in CKD.
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Affiliation(s)
- Yuki Niida
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Masashi Masuda
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Yuichiro Adachi
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Aika Yoshizawa
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Hirokazu Ohminami
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Yuki Mori
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Kohta Ohnishi
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Hisami Yamanaka-Okumura
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Takayuki Uchida
- Department of Nutritional Physiology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Takeshi Nikawa
- Department of Nutritional Physiology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Hironori Yamamoto
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan.,Department of Health and Nutrition, Faculty of Human Life, Jin-ai University, 3-1-1 Ohde-cho, Fukui 915-8586, Japan.,Department of Nephrology, Faculty of Medical Sciences, University of Fukui, Fukui 910-1193, Japan
| | - Makoto Miyazaki
- Division of Renal Diseases and Hypertension, Department of Medicine, University of Colorado Denver, Aurora, Colorado 80045, USA
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
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17
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Sakai M, Ohnishi K, Masuda M, Ohminami H, Yamanaka-Okumura H, Hara T, Taketani Y. Isorhamnetin, a 3'-methoxylated flavonol, enhances the lysosomal proteolysis in J774.1 murine macrophages in a TFEB-independent manner. Biosci Biotechnol Biochem 2020; 84:1221-1231. [PMID: 32046625 DOI: 10.1080/09168451.2020.1727309] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 02/04/2020] [Indexed: 10/25/2022]
Abstract
Lysosome is the principal organelle for the ultimate degradation of cellular macromolecules, which are delivered through endocytosis, phagocytosis, and autophagy. The lysosomal functions have been found to be impaired by fatty foods and aging, and more importantly, the lysosomal dysfunction in macrophages has been reported as a risk of atherosclerosis development. In this study, we searched for dietary polyphenols which possess the activity for enhancing the lysosomal degradation in J774.1, a murine macrophage-like cell line. Screening test utilizing DQ-BSA digestion identified isorhamnetin (3'-O-methylquercetin) as an active compound. Interestingly, structural comparison to inactive flavonols revealed that the chemical structure of the B-ring moiety in isorhamnetin is the primary determinant of its lysosome-enhancing activity. Unexpectedly isorhamnetin failed to inhibit mTORC1-TFEB signaling, a master regulator of lysosomal biogenesis and function. Our data suggested that the other molecular mechanism might be critical for the regulation of lysosomes in macrophages.Abbreviations: ANOVA: analysis of variance; ApoE: apolipoprotein E; ATP6V0D2: ATPase H+ transporting V0 subunit d2; BAF: bafilomycin A1; BODIPY: boron dipyrromethene; BSA: bovine serum albumin; CTSD: cathepsin D; CTSF: cathepsin F; DMEM: Dulbecco's modified eagle medium; DMSO: dimethyl sulfoxide; EGCG: epigallocatechin-3-gallate; FBS: fetal bovine serum; GAPDH: glyceraldehyde-3-phosphate dehydrogenase; HPLC: high-performance liquid chromatography; LAMP1: lysosomal-associated membrane protein 1; LAMP2A: lysosomal-associated membrane protein 2A; LC-MS/MS: liquid chromatography tandem mass spectrometry; MITF: microphthalmia-associated transcription factor; MRM: multiple reaction monitoring; mTORC1: mechanistic target of rapamycin complex 1; PBS: phosphate-buffered saline; PPARγ: peroxisome proliferator-activated receptor γ; RT-qPCR: reverse transcription quantitative polymerase chain reaction; SDS: sodium dodecyl sulfate; SNARE: soluble N-ethylmaleimide-sensitive-factor attachment protein receptor; TBS: Tris-buffered saline; TFA: trifluoroacetic acid; TFE3: transcription factor binding to IGHM enhancer 3; TFEB: transcriptional factor EB; TFEC: transcription factor EC; V-ATPase: vacuolar-type proton ATPase.
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Affiliation(s)
- Maiko Sakai
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Kohta Ohnishi
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Masashi Masuda
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Hirokazu Ohminami
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Hisami Yamanaka-Okumura
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Taichi Hara
- Laboratory of Food and Life Science, Faculty of Human Sciences, Waseda University, Saitama, Japan
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
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18
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Tajiri M, Nakahashi O, Kagawa T, Masuda M, Ohminami H, Iwano M, Takeda E, Taketani Y, Yamamoto H. Association of increased renal Cyp24a1 gene expression with low plasma 1,25-dihydroxyvitamin D levels in rats with streptozotocin-induced diabetes. J Clin Biochem Nutr 2020; 66:49-56. [PMID: 32001956 PMCID: PMC6983441 DOI: 10.3164/jcbn.19-79] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 09/05/2019] [Indexed: 12/12/2022] Open
Abstract
Decreases in plasma vitamin D concentrations have been reported in diabetes, although the mechanism involved in this decrease is unclear. Here, we investigated the association between Cyp24a1, a vitamin D catabolic enzyme, and abnormalities in vitamin D metabolism in streptozotocin-induced diabetes rats, an animal model of type 1 diabetes. Plasma 1,25-dihydroxyvitamin D [1,25(OH)2D] levels were significantly lower in streptozotocin-induced diabetes rats and renal Cyp24a1 mRNA expression levels were increased. Western blotting analysis of streptozotocin-induced diabetes rats kidney tissues with anti-CYP24A1 antibody showed a strong signal around 40 kDa, which differs from the predicted 50–55 kDa molecular weight for full-length Cyp24a1 and could represent the Cyp24a1-splicing variant that lacks exons 1 and 2. We observed high levels of renal Cyp24a1-splicing variant mRNA expression in streptozotocin-induced diabetes rats. We also confirmed transcriptional up-regulation of endogenous Cyp24a1 mRNA expression through glucocorticoid receptors by glucocorticoid in opossum kidney proximal cells. Taken together, our results indicated that high Cyp24a1 expression levels may play a role in the decrease of plasma 1,25(OH)2D levels in streptozotocin-induced diabetes rats. High plasma corticosterone levels in diabetes may affect transcriptional regulation to promote increases in Cyp24a1 expression.
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Affiliation(s)
- Mari Tajiri
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Otoki Nakahashi
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan.,Division of Functional Food Chemistry, Institute for Health Science, Tokushima Bunri University, 180 Nishihamahoji, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Tomohiro Kagawa
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Masashi Masuda
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Hirokazu Ohminami
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Masayuki Iwano
- Department of Nephrology, Faculty of Medical Sciences, University of Fukui, 23-3 Matsuoka, Shimoaizuki, Eiheiji-cho, Fukui 910-1193, Japan
| | - Eiji Takeda
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Hironori Yamamoto
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan.,Department of Nephrology, Faculty of Medical Sciences, University of Fukui, 23-3 Matsuoka, Shimoaizuki, Eiheiji-cho, Fukui 910-1193, Japan.,Department of Health and Nutrition, Faculty of Human Life, Jin-ai University, 3-1-1 Ohde-cho, Echizen-city, Fukui 915-8586, Japan
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19
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Nishioka S, Wakabayashi H, Maeda K, Shamoto H, Taketani Y, Kayashita J, Momosaki R. Body mass index and recovery of activities of daily living in older patients with femoral fracture: An analysis of a national inpatient database in Japan. Arch Gerontol Geriatr 2020; 87:104009. [PMID: 31951896 DOI: 10.1016/j.archger.2020.104009] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Revised: 12/08/2019] [Accepted: 01/02/2020] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To evaluate the effects of body mass index (BMI) on recovery of activities of daily living (ADL) in older Asian patients with femoral fracture registered in a nationwide inpatient database in Japan. METHODS We retrospectively analyzed data of patients aged ≥65 years with acute femoral fracture between April 2014 and November 2017 in the Diagnosis Procedure Combination database. Patients were classified into the following categories based on BMI (kg/m2): underweight (<18.5); normal weight (18.5-22.9); overweight (23-27.4); obese (≥27.5); and missing data. Demographic data included age, sex, type of fracture, comorbidities, and Barthel Index (BI). The primary outcome was BI at discharge and secondary outcomes were the overall complication rate and discharge to home. RESULTS In total, data for 13,348 patients were extracted from the database, of whom 80.3 % were female. At discharge, underweight patients had lower BI than overweight or obese patients. In multivariable analysis, underweight and missing BMI data were associated with lower BI at discharge (partial regression coefficients -2.324 and -5.763, respectively). In contrast, overweight and obese were correlated with higher BI (3.080 and 5.732, respectively). Underweight was independently associated with a higher overall complication rate (odds ratio 1.195) and a lower rate of discharge to home (odds ratio 0.865). CONCLUSIONS Underweight was associated with poorer performance in ADL, higher risk of complications, and lower rate of discharge to home in older Asian patients with femoral fracture. Overweight and obese had positive effects on ADL.
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Affiliation(s)
- Shinta Nishioka
- Department of Clinical Nutrition and Food Service, Nagasaki Rehabilitation Hospital, 4-11 Gin-yamachi, Nagasaki City, Nagasaki, 850-0854, Japan; Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima City, Tokushima, 770-8503, Japan.
| | - Hidetaka Wakabayashi
- Department of Rehabilitation Medicine, Yokohama City University Medical Center, 4-57 Urafune-chou, Minami-ku, Yokohama City, Kanagawa, 232-0024, Japan.
| | - Keisuke Maeda
- Department of Palliative and Supportive Medicine, Graduate School of Medicine, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, 480-1195, Japan.
| | - Hiroshi Shamoto
- Takano Hospital, 214 Higashimachi, Shimokitaba, Hironomachi, Futaba-gun, Fukushima, 979-0402, Japan.
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima City, Tokushima, 770-8503, Japan.
| | - Jun Kayashita
- Department of Health Sciences, Faculty of Human Culture and Science, Prefectural University of Hiroshima, 1-1-71 Ujinahigashi, Minami-ku, Hiroshima City, Hiroshima, 734-8558, Japan.
| | - Ryo Momosaki
- Department of Rehabilitation Medicine, Teikyo University School of Medicine University Hospital, Mizonokuchi, 3-8-3 Mizonokuchi, Takatsu-ku, Kawasaki City, Kanagawa, 213-8507, Japan.
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20
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Kawamoto K, Sakuma M, Tanaka S, Masuda M, Nakao-Muraoka M, Niida Y, Nakamatsu Y, Ito M, Taketani Y, Arai H. High-fat diets provoke phosphorus absorption from the small intestine in rats. Nutrition 2019; 72:110694. [PMID: 32007805 DOI: 10.1016/j.nut.2019.110694] [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: 07/25/2019] [Revised: 10/31/2019] [Accepted: 11/08/2019] [Indexed: 01/26/2023]
Abstract
OBJECTIVE The ratio of dietary carbohydrate to fat may affect phosphorus metabolism because both calcium and phosphorus are regulated by similar metabolic mechanisms, and a high-fat diet (HFD) induces deleterious effects on the absorption of dietary calcium. We hypothesized that an HFD induces an increase in phosphorus absorption. The aim of this study was to evaluate the effects of differences in the quantity and quality of dietary fat on phosphorus metabolism over the short- and long-term. METHODS Eighteen 8-wk-old Sprague-Dawley male rats were fed an isocaloric diet containing varied ratios of carbohydrates to fat energy and sources of fat (control diet, HFD, and high- saturated fat diet [HF-SFA]). At 3 d and 7 wk after the allocation and initiation of the test diets, feces and urine were collected and used for phosphorus and calcium measurement. RESULTS The fecal phosphorous concentration (F-Pi) was lower in the HF-SFA group than in the other two groups; however, the urine phosphorus concentration (U-Pi) was significantly higher in the HF-SFA group than the other two groups when the rats were fed over the short- (P < 0.01) and long -term (P < 0.01 versus control, P < 0.05 versus HFD group). There were no significant differences in type-IIa sodium-phosphate cotransporter (NaPi-2 a) and type-IIc sodium-phosphate cotransporter (NaPi-2 c) mRNA expression, which are renal phosphate transport-related genes; however, the expression of type-IIb sodium-phosphate cotransporter (NaPi-2 b) and type-III sodium-phosphate cotransporter (Pit-1) mRNA in the duodenum was higher in the HFD and HF-SFA groups than in the control group (P < 0.05), although there were no significant differences in these in the jejunum. CONCLUSIONS The present results indicated that an HFD, particularly HF-SFA, increases intestinal phosphate absorption compared with control.
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Affiliation(s)
- Keisuke Kawamoto
- Laboratory of Clinical Nutrition and Management, Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, Shizuoka, Japan
| | - Masae Sakuma
- Laboratory of Clinical Nutrition and Management, Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, Shizuoka, Japan; Department of Human and Nutrition, School of Life Studies, Sugiyama Jogakuen University, Nagoya, Japan.
| | - Sarasa Tanaka
- School of Human Science and Environment, University of Hyogo, Himeji, Japan
| | - Masashi Masuda
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima, Tokushima, Japan
| | - Mari Nakao-Muraoka
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima, Tokushima, Japan
| | - Yuki Niida
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima, Tokushima, Japan
| | - Yurino Nakamatsu
- Laboratory of Clinical Nutrition and Management, Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, Shizuoka, Japan
| | - Mikiko Ito
- School of Human Science and Environment, University of Hyogo, Himeji, Japan
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima, Tokushima, Japan
| | - Hidekazu Arai
- Laboratory of Clinical Nutrition and Management, Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, Shizuoka, Japan
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21
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Nishioka S, Omagari K, Nishioka E, Mori N, Taketani Y, Kayashita J. Concurrent and predictive validity of the Mini Nutritional Assessment Short-Form and the Geriatric Nutritional Risk Index in older stroke rehabilitation patients. J Hum Nutr Diet 2019; 33:12-22. [PMID: 31435986 DOI: 10.1111/jhn.12699] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND Malnutrition may worsen clinical outcomes in stroke patients. Few malnutrition screening tools have been validated in the rehabilitation setting. The present study aimed to assess the concurrent and predictive validity of two malnutrition screening tools. METHODS We retrospectively collected scores for the Mini Nutritional Assessment Short-Form (MNA-SF) and the Geriatric Nutritional Risk Index (GNRI) in consecutive stroke patients aged ≥65 years in a rehabilitation hospital. Concurrent validity was confirmed against the European Society for Clinical Nutrition and Metabolism diagnostic criteria for malnutrition (ESPEN-DCM). Malnutrition risk within the ESPEN-DCM process was assessed using the Malnutrition Universal Screening Tool. Cut-off values with maximum Youden index, and with sensitivity (Se) >90% and specificity (Sp) >50%, were defined as appropriate for identification and screening of malnutrition, respectively. The Functional Independence Measure and discharge destination were used to explore predictive validity. RESULTS Overall, 420 patients were analysed. Of these, we included 125 patients in the malnutrition group and 295 in the non-malnutrition group based on the ESPEN-DCM. Cut-off values for the identification and screening of malnutrition were 5 (Se: 0.78; Sp: 0.85) and 7 (Se: 0.96; Sp: 0.57) for the MNA-SF; 92 (Se: 0.74; Sp: 0.84) and 98 (Se: 0.93; Sp: 0.50) for the GNRI, respectively. The GNRI predicted discharge to acute care hospital, whereas the MNA-SF did not predict all outcome measures. CONCLUSIONS The MNA-SF and the GNRI have a fair concurrent validity in stroke patients, although lower cut-off values than currently used were required for the MNA-SF. The GNRI exhibits good predictive validity for discharge destination.
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Affiliation(s)
- S Nishioka
- Department of Clinical Nutrition and Food Services, Nagasaki Rehabilitation Hospital, Nagasaki, Japan.,Graduate School of Human Health Science, University of Nagasaki, Nagasaki, Japan.,Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - K Omagari
- Graduate School of Human Health Science, University of Nagasaki, Nagasaki, Japan
| | - E Nishioka
- Department of Clinical Services, Nagasaki Rehabilitation Hospital, Nagasaki, Japan
| | - N Mori
- Department of Clinical Services, Nagasaki Rehabilitation Hospital, Nagasaki, Japan
| | - Y Taketani
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - J Kayashita
- Department of Health Sciences, Faculty of Human Culture and Science, Prefectural University of Hiroshima, Hiroshima, Japan
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22
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Fukuda-Tatano S, Yamamoto H, Nakahashi O, Yoshikawa R, Hayashi M, Kishimoto M, Imi Y, Yamanaka-Okumura H, Ohnishi K, Masuda M, Taketani Y. Regulation of α-Klotho Expression by Dietary Phosphate During Growth Periods. Calcif Tissue Int 2019; 104:667-678. [PMID: 30671592 DOI: 10.1007/s00223-019-00525-0] [Citation(s) in RCA: 5] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 01/14/2019] [Indexed: 02/06/2023]
Abstract
Inorganic phosphate (Pi) is an essential nutrient for maintaining various biological functions, particularly during growth periods. Excess intake of dietary Pi increases the secretion of fibroblast growth factor 23 (FGF23) and parathyroid hormone to maintain plasma Pi levels. FGF23 is a potent phosphaturic factor that binds to the α-klotho/FGFR complex in the kidney to promote excretion of Pi into the urine. In addition, excess intake of dietary Pi decreases renal α-klotho expression. Down-regulation or lack of α-klotho induces a premature aging-like phenotype, resulting from hyperphosphatemia, and leading to conditions such as ectopic calcification and osteoporosis. However, it remains unclear what effects dietary Pi has on α-klotho expression at different life stages, especially during growth periods. To investigate this, we used C57BL/6J mice in two life stages during growing period. Weaned (3 weeks old) and periadolescent (7 weeks old) were randomly divided into seven experimental groups and fed with 0.02, 0.3, 0.6, 0.9, 1.2, 1.5, or 1.8% Pi diets for 7 days. As a result, elevated plasma Pi and FGF23 levels and decreased renal α-klotho expression were observed in weaned mice fed with a high Pi diet. In addition, a high Pi diet clearly induced renal calcification in the weaned mice. However, in the periadolescent group, renal calcification was not observed, even in the 1.8% Pi diet group. The present study indicates that a high Pi diet in weaned mice has much greater adverse effects on renal α-klotho expression and pathogenesis of renal calcification compared with periadolescent mice.
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Affiliation(s)
- Shiori Fukuda-Tatano
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
- Department of Health and Nutrition, Faculty of Nursing and Nutrition, The University of Shimane, 151 Nishihayashigi, Izumo, Shimane, 693-8550, Japan
| | - Hironori Yamamoto
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
- Department of Health and Nutrition, Faculty of Human Life, Jin-ai University, Ohde-cho 3-1-1, Echizen, Fukui, 915-8586, Japan
- Department of Nephrology, Faculty of Medical Sciences, University of Fukui, Fukui, 910-1193, Japan
| | - Otoki Nakahashi
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
- Division of Functional Food Chemistry, Institute for Health Science, Tokushima Bunri University, 180 Nishihamahoji, Yamashiro-cho, Tokushima, Tokushima, 770-8514, Japan
| | - Ryouhei Yoshikawa
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Mayu Hayashi
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Maki Kishimoto
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Yukiko Imi
- Department of Clinical Nutrition and Dietetics, Konan Women's University, Kobe, 658-0001, Japan
| | - Hisami Yamanaka-Okumura
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Kohta Ohnishi
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Masashi Masuda
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan.
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23
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Imi Y, Yabiki N, Abuduli M, Masuda M, Yamanaka-Okumura H, Taketani Y. High phosphate diet suppresses lipogenesis in white adipose tissue. J Clin Biochem Nutr 2018. [PMID: 30487667 DOI: 10.3164/jcbn.17.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Excessive phosphate intake has been positively associated with renal and vascular dysfunction, conversely negatively associated with body fat accumulation. We investigated the effect of a high-phosphate diet on the expression of lipid metabolic genes in white adipose tissue and liver. Male 8-week-old Sprague-Dawley rats were fed a control diet containing 0.6% phosphate or a high-phosphate diet containing 1.5% phosphate for 4 weeks. In comparison to the control group, the HP group showed a significantly lower body fat mass and fasting plasma insulin level alongside decreased lipogenic and increased lipolytic gene expression in visceral fat. Additionally, the expression of genes involved in hepatic lipogenesis, hepatic glycogenesis, and triglyceride accumulation decreased in the high-phosphate group. Exogenous phosphate, parathyroid hormone, and fibroblast growth factor 23 did not directly affect the expression of lipolytic or lipogenic genes in 3T3-L1 adipocytes and HepG2 hepatocytes. Thus, the high-phosphate diet suppressed the activity of white adipose tissue by increasing lipolytic gene expression and decreasing lipogenic gene expression. These effects could have been caused by the lowered fasting plasma insulin level that occurred in response to the high-phosphate diet, but were not directly caused by the increases in plasma phosphate or phosphaturic hormones.
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Affiliation(s)
- Yukiko Imi
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Norie Yabiki
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Maerjianghan Abuduli
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Masashi Masuda
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Hisami Yamanaka-Okumura
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
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Imi Y, Yabiki N, Abuduli M, Masuda M, Yamanaka-Okumura H, Taketani Y. High phosphate diet suppresses lipogenesis in white adipose tissue. J Clin Biochem Nutr 2018; 63:181-191. [PMID: 30487667 PMCID: PMC6252294 DOI: 10.3164/jcbn.17-141] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Accepted: 01/31/2018] [Indexed: 02/06/2023] Open
Abstract
Excessive phosphate intake has been positively associated with renal and vascular dysfunction, conversely negatively associated with body fat accumulation. We investigated the effect of a high-phosphate diet on the expression of lipid metabolic genes in white adipose tissue and liver. Male 8-week-old Sprague-Dawley rats were fed a control diet containing 0.6% phosphate or a high-phosphate diet containing 1.5% phosphate for 4 weeks. In comparison to the control group, the HP group showed a significantly lower body fat mass and fasting plasma insulin level alongside decreased lipogenic and increased lipolytic gene expression in visceral fat. Additionally, the expression of genes involved in hepatic lipogenesis, hepatic glycogenesis, and triglyceride accumulation decreased in the high-phosphate group. Exogenous phosphate, parathyroid hormone, and fibroblast growth factor 23 did not directly affect the expression of lipolytic or lipogenic genes in 3T3-L1 adipocytes and HepG2 hepatocytes. Thus, the high-phosphate diet suppressed the activity of white adipose tissue by increasing lipolytic gene expression and decreasing lipogenic gene expression. These effects could have been caused by the lowered fasting plasma insulin level that occurred in response to the high-phosphate diet, but were not directly caused by the increases in plasma phosphate or phosphaturic hormones.
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Affiliation(s)
- Yukiko Imi
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Norie Yabiki
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Maerjianghan Abuduli
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Masashi Masuda
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Hisami Yamanaka-Okumura
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
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25
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Yamaguchi C, Yamanaka‐Okumura H, Esumi H, Masuda M, Katayama T, Taketani Y. Investigation of dose‐dependent effects of fat on blood glucose, serum insulin, and appetite sensation. J Med Invest 2018; 65:203-207. [DOI: 10.2152/jmi.65.203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Chise Yamaguchi
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Hisami Yamanaka‐Okumura
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Haruka Esumi
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Masashi Masuda
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Takafumi Katayama
- Departments of Statistics and Computer Science, College of Nursing Art and Science, University of Hyogo
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School
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26
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Yoshikawa R, Yamamoto H, Nakahashi O, Kagawa T, Tajiri M, Nakao M, Fukuda S, Arai H, Masuda M, Iwano M, Takeda E, Taketani Y. The age-related changes of dietary phosphate responsiveness in plasma 1,25-dihydroxyvitamin D levels and renal Cyp27b1 and Cyp24a1 gene expression is associated with renal α-Klotho gene expression in mice. J Clin Biochem Nutr 2017; 62:68-74. [PMID: 29371756 PMCID: PMC5773827 DOI: 10.3164/jcbn.17-20] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 08/04/2017] [Indexed: 12/21/2022] Open
Abstract
In this study, we investigated the relationship between age-related changes in renal α-Klotho gene expression, vitamin D metabolism and the responsiveness of dietary phosphate in 1, 2 and 13 month-old mice fed a high phosphate (phosphate 1.2%) diet or low phosphate (phosphate 0.02%) diet for 5 days. We found that 1,25-dihydroxyvitamin D levels in plasma were significantly lower in the high phosphate group than the low phosphate group for 1 and 2 month-old mice, but not 13 month-old mice. In addition, in the high phosphate group plasma 1,25-dihydroxyvitamin D levels were decreased in 2 month-old mice relative to 1 month-old mice, but 13 month-old mice had higher levels than 2 month-old mice. In fact, plasma 1,25-dihydroxyvitamin D levels showed a significant correlation with vitamin D metabolism gene Cyp27b1 and Cyp24a1 mRNA expression in the high phosphate group. Interestingly, renal α-Klotho mRNA and protein levels were significant change with age. Furthermore, α-Klotho mRNA expression showed a significant negative correlation with plasma 1,25-dihydroxyvitamin D levels in the high phosphate group. Our results suggest that age-related alterations in renal α-Klotho expression could affect the responsiveness of dietary phosphate to vitamin D metabolism.
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Affiliation(s)
- Ryouhei Yoshikawa
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Hironori Yamamoto
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan.,Department of Health and Nutrition, Faculty of Human Life, Jin-ai University, 3-1-1 Ohde-cho, Echizen-city, Fukui 915-8586, Japan.,Department of Nephrology, Faculty of Medical Sciences, University of Fukui, 23-3 Matsuoka Shimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui 910-1193, Japan
| | - Otoki Nakahashi
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan.,Division of Functional Food Chemistry, Institute for Health Science, Tokushima Bunri University, 180 Nishihamahoji, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Tomohiro Kagawa
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Mari Tajiri
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Mari Nakao
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Shiori Fukuda
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Hidekazu Arai
- Laboratory of Clinical Nutrition and Management, Graduate School of Nutritional and Environmental Sciences, The University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Masashi Masuda
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Masayuki Iwano
- Department of Nephrology, Faculty of Medical Sciences, University of Fukui, 23-3 Matsuoka Shimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui 910-1193, Japan
| | - Eiji Takeda
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
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27
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Sugihara K, Masuda M, Nakao M, Abuduli M, Imi Y, Oda N, Okahisa T, Yamamoto H, Takeda E, Taketani Y. Dietary phosphate exacerbates intestinal inflammation in experimental colitis. J Clin Biochem Nutr 2017; 61:91-99. [PMID: 28955125 PMCID: PMC5612814 DOI: 10.3164/jcbn.16-117] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Accepted: 12/26/2016] [Indexed: 12/31/2022] Open
Abstract
The recent widespread consumption of Western diets and food additives worldwide is associated with excessive inorganic phosphate intake. However, researchers have known little about the impact of dietary phosphate intake on the development of inflammatory bowel disease to date. In this study, we investigated the effects of dietary phosphate on intestinal inflammation in experimental colitis. Sprague-Dawley rats were fed different phosphate diets (0.5%, 1.0% and 1.5% phosphate) with or without dextran sulfate sodium. For in vitro study, the effects of phosphate on proinflammatory cytokine induction and reactive oxygen species production in RAW264.7 macrophage were examined. Dietary phosphate exacerbated intestinal inflammation in experimental colitis in a dose-dependent manner, as assessed by the clinical disease activity score, colon length, and histology. Furthermore, the high phosphate diet increased myeloperoxidase activity and proinflammatory cytokine mRNA expression through the activation of nuclear factor κB in the inflamed colon. In addition, high phosphate loading in RAW264.7 cells directly enhanced reactive oxygen species production and proinflammatory cytokine gene expression. Our results demonstrated that the high phosphate diet exacerbated intestinal inflammation in experimental colitis. These findings have important therapeutic implications for inflammatory bowel disease patients.
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Affiliation(s)
- Kohei Sugihara
- Departments of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan
| | - Masashi Masuda
- Departments of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan
| | - Mari Nakao
- Departments of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan
| | - Maerjianghan Abuduli
- Departments of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan
| | - Yukiko Imi
- Departments of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan
| | - Naoko Oda
- Departments of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan
| | - Toshiya Okahisa
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan
| | - Hironori Yamamoto
- Department of Health and Nutrition, Faculty of Human Life, Jin-ai University, Fukui 915-8586, Japan
| | - Eiji Takeda
- Departments of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan
| | - Yutaka Taketani
- Departments of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan
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28
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Takase N, Inden M, Sekine SI, Ishii Y, Yonemitsu H, Iwashita W, Kurita H, Taketani Y, Hozumi I. Neuroprotective effect of 5-aminolevulinic acid against low inorganic phosphate in neuroblastoma SH-SY5Y cells. Sci Rep 2017; 7:5768. [PMID: 28720798 PMCID: PMC5515920 DOI: 10.1038/s41598-017-06406-6] [Citation(s) in RCA: 8] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 06/13/2017] [Indexed: 12/17/2022] Open
Abstract
PiT-1 (encoded by SLC20A1) and PiT-2 (encoded by SLC20A2) are type-III sodium-dependent phosphate cotransporters (NaPiTs). Recently, SLC20A2 mutations have been found in patients with idiopathic basal ganglia calcification (IBGC), and were predicted to bring about an inability to transport Pi from the extracellular environment. Here we investigated the effect of low Pi loading on the human neuroblastoma SH-SY5Y and the human glioblastoma A172 cell lines. The results show a different sensitivity to low Pi loading and differential regulation of type-III NaPiTs in these cells. We also examined whether 5-aminolevulinic acid (5-ALA) inhibited low Pi loading-induced neurotoxicity in SH-SY5Y cells. Concomitant application of 5-ALA with low Pi loading markedly attenuated low Pi-induced cell death and mitochondrial dysfunction via the induction of HO-1 by p38 MAPK. The findings provide us with novel viewpoints to understand the pathophysiology of IBGC, and give a new insight into the clinical prevention and treatment of IBGC.
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Affiliation(s)
- Naoko Takase
- Laboratory of Medical Therapeutics and Molecular Therapeutics, Gifu Pharmaceutical University, Gifu, Japan
| | - Masatoshi Inden
- Laboratory of Medical Therapeutics and Molecular Therapeutics, Gifu Pharmaceutical University, Gifu, Japan
| | - Shin-Ichiro Sekine
- Laboratory of Medical Therapeutics and Molecular Therapeutics, Gifu Pharmaceutical University, Gifu, Japan
| | - Yumi Ishii
- Laboratory of Medical Therapeutics and Molecular Therapeutics, Gifu Pharmaceutical University, Gifu, Japan
| | - Hiroko Yonemitsu
- Laboratory of Medical Therapeutics and Molecular Therapeutics, Gifu Pharmaceutical University, Gifu, Japan
| | - Wakana Iwashita
- Laboratory of Medical Therapeutics and Molecular Therapeutics, Gifu Pharmaceutical University, Gifu, Japan
| | - Hisaka Kurita
- Laboratory of Medical Therapeutics and Molecular Therapeutics, Gifu Pharmaceutical University, Gifu, Japan
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Isao Hozumi
- Laboratory of Medical Therapeutics and Molecular Therapeutics, Gifu Pharmaceutical University, Gifu, Japan.
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29
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Harada N, Okuyama M, Yoshikatsu A, Yamamoto H, Ishiwata S, Hamada C, Hirose T, Shono M, Kuroda M, Tsutsumi R, Takeo J, Taketani Y, Nakaya Y, Sakaue H. Endoplasmic Reticulum Stress in Mice Increases Hepatic Expression of Genes Carrying a Premature Termination Codon via a Nutritional Status‐Independent GRP78‐Dependent Mechanism. J Cell Biochem 2017; 118:3810-3824. [DOI: 10.1002/jcb.26031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 04/04/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Nagakatsu Harada
- Department of Nutrition and MetabolismInstitute of Biomedical SciencesTokushima University Graduate School3‐18‐15, Kuramoto‐choTokushima City770‐8503Japan
| | - Maiko Okuyama
- Department of Nutrition and MetabolismInstitute of Biomedical SciencesTokushima University Graduate School3‐18‐15, Kuramoto‐choTokushima City770‐8503Japan
| | - Aya Yoshikatsu
- Department of Nutrition and MetabolismInstitute of Biomedical SciencesTokushima University Graduate School3‐18‐15, Kuramoto‐choTokushima City770‐8503Japan
| | - Hironori Yamamoto
- Faculty of Human LifeDepartment of Health and NutritionJin‐ai University3‐1‐1 Ohde‐choEchizen City915‐8586Japan
| | - Saori Ishiwata
- Department of Nutrition and MetabolismInstitute of Biomedical SciencesTokushima University Graduate School3‐18‐15, Kuramoto‐choTokushima City770‐8503Japan
| | - Chikako Hamada
- Department of Nutrition and MetabolismInstitute of Biomedical SciencesTokushima University Graduate School3‐18‐15, Kuramoto‐choTokushima City770‐8503Japan
| | - Tomoyo Hirose
- Department of Nutrition and MetabolismInstitute of Biomedical SciencesTokushima University Graduate School3‐18‐15, Kuramoto‐choTokushima City770‐8503Japan
| | - Masayuki Shono
- Support Center for Advanced Medical SciencesInstitute of Biomedical SciencesTokushima University Graduate School3‐18‐15, Kuramoto‐choTokushima City770‐8503Japan
| | - Masashi Kuroda
- Department of Nutrition and MetabolismInstitute of Biomedical SciencesTokushima University Graduate School3‐18‐15, Kuramoto‐choTokushima City770‐8503Japan
| | - Rie Tsutsumi
- Department of Nutrition and MetabolismInstitute of Biomedical SciencesTokushima University Graduate School3‐18‐15, Kuramoto‐choTokushima City770‐8503Japan
| | - Jiro Takeo
- Department of Nutrition and MetabolismInstitute of Biomedical SciencesTokushima University Graduate School3‐18‐15, Kuramoto‐choTokushima City770‐8503Japan
- Central Research LaboratoryNippon Suisan Kaisha32‐3 Nanakuni 1 ChomeHachiojiTokyo192‐0991Japan
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food ManagementInstitute of Biomedical SciencesTokushima University Graduate School3‐18‐15, Kuramoto‐choTokushima City770‐8503Japan
| | - Yutaka Nakaya
- Department of Nutrition and MetabolismInstitute of Biomedical SciencesTokushima University Graduate School3‐18‐15, Kuramoto‐choTokushima City770‐8503Japan
| | - Hiroshi Sakaue
- Department of Nutrition and MetabolismInstitute of Biomedical SciencesTokushima University Graduate School3‐18‐15, Kuramoto‐choTokushima City770‐8503Japan
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30
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Nishi T, Shuto E, Ogawa M, Ohya M, Nakanishi M, Masuda M, Katsumoto M, Yamanaka-Okumura H, Sakai T, Takeda E, Sakaue H, Taketani Y. Excessive dietary phosphorus intake impairs endothelial function in young healthy men: a time- and dose-dependent study. J Med Invest 2017; 62:167-72. [PMID: 26399342 DOI: 10.2152/jmi.62.167] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Excessive dietary phosphorus (P) has been speculated to be a risk factor for cardiovascular disease (CVD). Here, we performed a double-blinded crossover study to investigate the time- and dose-dependent effects of dietary P intake on endothelial function in healthy subjects. Sixteen healthy male volunteers were given meals containing 400, 800, and 1,200 mg P (P400, P800, and P1200 meals, respectively) with at least 7 days between doses. There were no differences in nutritional composition among the experimental diets except for P content. Blood biochemistry data and flow-mediated dilation (%FMD) of the brachial artery were measured while fasted, at 0 h, 1 h, 2 h, and 4 h after meal ingestion, and the next morning while fasted. The P800 and P1200 meals significantly increased serum P levels at 1-4 h after ingestion. A significant decrease in %FMD was observed between 1-4 h,while the P400 meal did not affect %FMD. We observed no differences among meals in serum P levels or %FMD the next morning. A significant negative correlation was observed between %FMD and serum P. These results indicate that excessive dietary P intake can acutely impair endothelial function in healthy people.
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Affiliation(s)
- Tamae Nishi
- Department of Clinical Nutrition and Food Management, University of Tokushima Graduate School
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31
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Abstract
Disturbances in mineral and bone metabolism play a critical role in the pathogenesis of cardiovascular complications in patients with chronic kidney disease (CKD). The term "renal osteodystrophy" has recently been replaced with "CKD-mineral and bone disorder (CKD-MBD)", which includes vascular calcification as well as bone abnormalities. In Japan, proportions of the aged and long-term dialysis patients are increasing which makes management of vascular calcification and parathyroid function increasingly more important. There are three main strategies to manage phosphate load: phosphorus dietary restriction, administration of phosphate binder and to ensure in the CKD 5D setting, an adequate dialysis.
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Affiliation(s)
- Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Fumihiko Koiwa
- Division of Nephrology, Department of Medicine, Showa University Fujigaoka Hospital, Yokohama, Japan
| | - Keitaro Yokoyama
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-Shinbashi, Minato-ku, Tokyo, 105-8461, Japan.
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32
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Takashima A, Fukuda D, Tanaka K, Higashikuni Y, Hirata Y, Nishimoto S, Yagi S, Yamada H, Soeki T, Wakatsuki T, Taketani Y, Shimabukuro M, Sata M. Combination of n-3 polyunsaturated fatty acids reduces atherogenesis in apolipoprotein E-deficient mice by inhibiting macrophage activation. Atherosclerosis 2016; 254:142-150. [DOI: 10.1016/j.atherosclerosis.2016.10.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 10/04/2016] [Accepted: 10/04/2016] [Indexed: 11/28/2022]
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Adachi C, Yamanaka-Okumura H, Katayama T, Taketani Y, Takeda E. Single vegetable meal content equivalence as an alternative to fat for satiety: a randomised trial in Japanese women. Asia Pac J Clin Nutr 2016; 25:478-86. [PMID: 27440681 DOI: 10.6133/apjcn.092015.25] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
BACKGROUND AND OBJECTIVES Although high energy density foods are highly palatable, their overconsumption leads to obesity because of high fat content. Low energy density foods are more effective for preventing individuals from becoming overweight. We investigated how different amounts of a single vegetable affect the sensory properties of meals with different energy densities. METHODS AND STUDY DESIGN In a randomized crossover design, 40 young Japanese women consumed control and high-fat (HF) lunches. Control meals contained the same amount of rice and hamburger and 80 g (C80), 120 g (C120), 160 g (C160), 200 g (C200), 240 g (C240), or 280 g (C280) of broccoli. HF meals were control meals to which 38.1 g of oil was added (HF80, HF120, HF160, HF200, HF240, and HF280). Sensory properties before intake and 0.5, 1, 2, 3, 4, and 5 h after meals were assessed using a visual analog scale. RESULTS Fullness was significantly lower with C80 than with C200 and C280 at 0.5 h and all time points, respectively, after consumption. In contrast, satisfaction with all HF meals was similar at all time points. Fullness and satisfaction were higher with almost all HF meals than with control meals; however, fullness and satisfaction were similar between HF200 and all control meals 1-4 h after consumption. CONCLUSIONS Fat increases satiety when a single vegetable is included in the meal; however, at least of 200 g of vegetable in a 500- kcal meal with low fat content provides fullness and satisfaction similar to those provided by an HF meal.
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Affiliation(s)
- Chisaki Adachi
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Hisami Yamanaka-Okumura
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan.
| | - Takafumi Katayama
- Department of Statistics and Computer Science, College of Nursing Art and Science, University of Hyogo, Hyogo, Japan
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Eiji Takeda
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
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34
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Taketani Y, Masuda M, Yamanaka-Okumura H, Tatsumi S, Segawa H, Miyamoto KI, Takeda E, Yamamoto H. Niacin and Chronic Kidney Disease. J Nutr Sci Vitaminol (Tokyo) 2016; 61 Suppl:S173-5. [PMID: 26598845 DOI: 10.3177/jnsv.61.s173] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Chronic kidney disease (CKD) is an increasing problem worldwide. The number of end-stage renal disease patients requiring treatment by dialysis is estimated to be increasing by 10,000 patients per year in Japan. Furthermore, an estimated 13 million people are living with CKD in Japan. Various complications are associated with CKD, including cardiovascular disease (CVD). More than one-third of CKD patients die from CVD. Thus, prevention of CVD is a primary concern for the treatment of CKD patients. CKD-mineral and bone disorder (CKD-MBD) is a serious complication that typically leads to CVD. Hyperphosphatemia is thought to be a central-risk factor for CKD-MBD. Therefore, managing hyperphosphatemia is crucial to prevent CKD-MBD and CVD. It is difficult to achieve the target serum phosphate level through dietary modifications alone in patients with hyperphosphatemia, because most foods contain phosphate. Thus, phosphate binders such as calcium carbonate are commonly prescribed to CKD patients with hyperphosphatemia, but these have undesirable side effects. Inhibition of intestinal phosphate transport activity has also been investigated as an alternative approach for controlling serum phosphate levels in CKD patients. Nicotinamide, which is the amide of niacin, can inhibit intestinal phosphate transport. Niacin and related compounds have also been developed as drugs for hyperlipidemia conditions, especially hypertriglyceridemia with low high-density lipoprotein. This type of dyslipidemia is frequently observed in CKD patients and is a modifiable risk factor for CVD. Thus, niacin and related compounds may have utility for the treatment of both hyperphosphatemia and dyslipidemia in CKD patients to prevent CVD.
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Affiliation(s)
- Yutaka Taketani
- Department of Clinical Nutrition, University of Tokushima Graduate School
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35
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Tanemura Y, Yamanaka-Okumura H, Sakuma M, Nii Y, Taketani Y, Takeda E. Effects of the intake of Undaria pinnatifida (Wakame) and its sporophylls (Mekabu) on postprandial glucose and insulin metabolism. J Med Invest 2016; 61:291-7. [PMID: 25264047 DOI: 10.2152/jmi.61.291] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Long-term suppression of postprandial glucose concentration is an important dietary strategy for the prevention and treatment of type 2 diabetes. Because previous reports have suggested that seaweed may exert anti-diabetic effects in animals, the effects of Wakame or Mekabu intake with 200 g white rice, 50 g boiled soybeans, 60 g potatoes, and 40 g broccoli on postprandial glucose, insulin and free fatty acid levels were investigated in healthy subjects. Plasma glucose levels at 30 min and glucose area under the curve (AUC) at 0-30 min after the Mekabu meal were significantly lower than that after the control meal. Plasma glucose and glucose AUC were not different between the Wakame and control meals. Postprandial serum insulin and its AUC and free fatty acid concentration were not different among the three meals. In addition, fullness, satisfaction, and wellness scores were not different among the three meals. Thus, consumption of 70 g Mekabu with a white rice-based breakfast reduces postprandial glucose concentration.
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Affiliation(s)
- Yoko Tanemura
- Department of Clinical Nutrition, Institute of Health Biosciences, the University of Tokushima Graduate School
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36
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Abuduli M, Ohminami H, Otani T, Kubo H, Ueda H, Kawai Y, Masuda M, Yamanaka-Okumura H, Sakaue H, Yamamoto H, Takeda E, Taketani Y. Effects of dietary phosphate on glucose and lipid metabolism. Am J Physiol Endocrinol Metab 2016; 310:E526-38. [PMID: 26786774 DOI: 10.1152/ajpendo.00234.2015] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 01/13/2016] [Indexed: 01/08/2023]
Abstract
Recent epidemiological and animal studies have suggested that excess intake of phosphate (Pi) is a risk factor for the progression of chronic kidney disease and its cardiovascular complications. However, little is known about the impact of dietary high Pi intake on the development of metabolic disorders such as obesity and type 2 diabetes. In this study, we investigated the effects of dietary Pi on glucose and lipid metabolism in healthy rats. Male 8-wk-old Sprague-Dawley rats were divided into three groups and given experimental diets containing varying amounts of Pi, i.e., 0.2 [low Pi(LP)], 0.6 [control Pi(CP)], and 1.2% [high Pi(HP)]. After 4 wk, the HP group showed lower visceral fat accumulation compared with other groups, accompanied by a low respiratory exchange ratio (V̇CO2/V̇O2) without alteration of locomotive activity. The HP group had lower levels of plasma insulin and nonesterified fatty acids. In addition, the HP group also showed suppressed expression of hepatic lipogenic genes, including sterol regulatory element-binding protein-1c, fatty acid synthase, and acetyl-CoA carboxylase, whereas there was no difference in hepatic fat oxidation among the groups. On the other hand, uncoupling protein (UCP) 1 and peroxisome proliferator-activated receptor-γ coactivator-1α (PGC-1α) expression were significantly increased in the brown adipose tissue (BAT) of the HP group. Our data demonstrated that a high-Pi diet can negatively regulate lipid synthesis in the liver and increase mRNA expression related to lipid oxidation and UCP1 in BAT, thereby preventing visceral fat accumulation. Thus, dietary Pi is a novel metabolic regulator.
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Affiliation(s)
- Maerjianghan Abuduli
- Department of Clinical Nutrition and Food management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Hirokazu Ohminami
- Department of Clinical Nutrition and Food management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Tamaki Otani
- Radioisotope Research Center, Tokushima University Graduate School, Tokushima, Japan
| | - Hitoshi Kubo
- Advanced Clinical Research Center, Fukushima Medical University, Fukushima City, Japan
| | - Haruka Ueda
- Department of Clinical Nutrition and Food management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yoshichika Kawai
- Department of Food Science, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Masashi Masuda
- Department of Clinical Nutrition and Food management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Hisami Yamanaka-Okumura
- Department of Clinical Nutrition and Food management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Hiroshi Sakaue
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan; and
| | - Hironori Yamamoto
- Department of Health and Nutrition, Faculty of Human Life, Jin-ai University, Echizen, Japan
| | - Eiji Takeda
- Department of Clinical Nutrition and Food management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food management, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan;
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Yamanaka-Okumura H, Tatano H, Kajiura D, Yamaguchi C, Masuda M, Taketani Y. [Key treatment of lifestyle-related diseases:nutritional education and practice]. Clin Calcium 2016; 26:441-446. [PMID: 26923983] [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: 06/05/2023]
Abstract
In modern times, calcium and vegetable intake is known to be generally insufficient in the population. In addition, many patients increasingly have lifestyle-related diseases, such as obesity, and they require lifestyle modification to increase their energy consumption compared to their energy intake. Therefore, it is important for these patients to continue weight loss and to improve their dietary habits. The overall energy density (ED) of one's diet decreases by eating more vegetables and fruits. Moreover, higher vegetable intake contributes to an improvement in lifestyle as well as improves the calcium intake. In this article, we show that sufficient vegetable intake provides satiety and satisfaction.
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Affiliation(s)
- Hisami Yamanaka-Okumura
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences,Tokushima University Graduate School, Japan
| | - Hiroshi Tatano
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences,Tokushima University Graduate School, Japan
| | - Daisuke Kajiura
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences,Tokushima University Graduate School, Japan
| | - Chise Yamaguchi
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences,Tokushima University Graduate School, Japan
| | - Masashi Masuda
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences,Tokushima University Graduate School, Japan
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences,Tokushima University Graduate School, Japan
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Tatano H, Yamanaka-Okumura H, Zhou B, Adachi C, Kawakami Y, Katayama T, Masuda M, Takeda E, Taketani Y. Association of habitual high-fat intake and desire for protein and sweet food. J Med Invest 2016; 63:241-7. [DOI: 10.2152/jmi.63.241] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Hiroshi Tatano
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Hisami Yamanaka-Okumura
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Bei Zhou
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Chisaki Adachi
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Yuka Kawakami
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Takafumi Katayama
- Department of Statistics and Computer Science, College of Nursing Art and Science, University of Hyogo
| | - Masashi Masuda
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Eiji Takeda
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Institute of Biomedical Sciences, Tokushima University Graduate School
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Nakao M, Yamamoto H, Nakahashi O, Ikeda S, Abe K, Masuda M, Ishiguro M, Iwano M, Takeda E, Taketani Y. Dietary phosphate supplementation delays the onset of iron deficiency anemia and affects iron status in rats. Nutr Res 2015; 35:1016-24. [DOI: 10.1016/j.nutres.2015.09.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2015] [Revised: 08/28/2015] [Accepted: 09/01/2015] [Indexed: 10/23/2022]
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Takeda E, Yamanaka-Okumura H, Taketani Y, Inagaki N, Hosokawa M, Shide K, Maegawa H, Kondo K, Kawasaki E, Shinozaki S, Fujinaka Y, Matsubara T, Katayama T, Sasaki H, Kawashima A, Aonuma H. Effect of nutritional counseling and long term isomaltulose based liquid formula (MHN-01) intake on metabolic syndrome. J Clin Biochem Nutr 2015; 57:140-4. [PMID: 26388672 PMCID: PMC4566023 DOI: 10.3164/jcbn.14-132] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Accepted: 11/24/2014] [Indexed: 01/10/2023] Open
Abstract
The isomaltulose based liquid formula (MHN-01), suppresses postprandial plasma glucose and insulin levels in healthy persons and patients with impaired glucose tolerance (IGT) or type 2 diabetes. MHN-01 intake as a part of breakfast also suppresses glucose and insulin levels after lunch, suggesting second meal effect. The objective of this study was to investigate the effects of nutritional counseling and long-term (24 weeks) MHN-01 ingestion on biomarkers of metabolic syndrome. Forty-one subjects with criteria of metabolic syndrome participated in this study composed with the control period (0–12 week) followed by nutritional counseling and the experimental period (12–36 week) followed by 200 kcal (837 kJ) of MHN-01 or dextrin-based standard balanced liquid formula (SBF) loading as a part of breakfast. In 16 of 41 subjects became to out of criteria for liquid formula loading study during control period (unqualified group). In the unqualified group, several biomarkers were improved. In experimental period, serum HbA1c levels significantly increased in SBF group (n = 12) but did not change in MHN-01 group (n = 10). Thus, intake of 837 kJ MHN-01 as a part of breakfast may be effective for suppression of deteriorating glucose metabolism in metabolic syndrome.
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Affiliation(s)
- Eiji Takeda
- Department of Clinical Nutrition, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Hisami Yamanaka-Okumura
- Department of Clinical Nutrition, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Yutaka Taketani
- Department of Clinical Nutrition, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Nobuya Inagaki
- Department of Diabetes, Endocrinology and Nutrition, Kyoto University Graduate School of Medicine, Yoshida-Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Masaya Hosokawa
- Department of Diabetes, Endocrinology and Nutrition, Kyoto University Graduate School of Medicine, Yoshida-Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Kenichiro Shide
- Department of Clinical Nutrition, School of Medicine, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Hiroshi Maegawa
- Division of Endocrinology and Metabolism, Department of Medicine, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu, Shiga 520-2192, Japan
| | - Keiko Kondo
- Division of Endocrinology and Metabolism, Department of Medicine, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu, Shiga 520-2192, Japan
| | - Eiji Kawasaki
- Department of Metabolism/Diabetes and Clinical Nutrition, Nagasaki University Hospital, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan
| | - Shoko Shinozaki
- Division of Dietary Service, Nagasaki University Hospital, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan
| | - Yuichi Fujinaka
- Endocrinology and Metabolism, Tokushima University Medical and Dental Hospital, 2-50-1 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Tsukasa Matsubara
- Director, Matsubara Mayflower Hospital, 944-55 Fujita, Kato, Hyogo 673-1462, Japan
| | - Takafumi Katayama
- Faculty of Statistic and Computer Science, College of Nursing Art and Science, University of Hyogo, 13-71 Kitaoji-cho, Akashi, Hyogo 673-8588, Japan
| | - Hajime Sasaki
- Food Science Research Labs., R&D Div., Meiji Co., Ltd., 540 Narita, Odawara, Kanagawa 250-0862, Japan
| | - Akihiro Kawashima
- Food Science Research Labs., R&D Div., Meiji Co., Ltd., 540 Narita, Odawara, Kanagawa 250-0862, Japan
| | - Hiromitsu Aonuma
- Food Science Research Labs., R&D Div., Meiji Co., Ltd., 540 Narita, Odawara, Kanagawa 250-0862, Japan
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Yamanaka-Okumura H, Hirayama A, Wada S, Kajiura D, Masuda M, Takeda E, Taketani Y, Imura S, Utsunomiya T, Shimada M, Tomita M, Soga T. MON-PP050: Perioperative Serum and Urine Metabolome Analysis in Patients with Hepatocellular Carcinoma. Clin Nutr 2015. [DOI: 10.1016/s0261-5614(15)30482-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Taketani Y, Imi Y, Abuduli M. [Bone and Nutrition. A novel function of phosphorus]. Clin Calcium 2015; 25:1015-1021. [PMID: 26119314] [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: 06/04/2023]
Abstract
Phosphorus is an essential nutrient for bone formation by forming hydroxyapatite with calcium. Simultaneously, phosphorus is also a component of high energy bond of ATP, nucleic acids, and phospholipids. Recent studies have demonstrated that excess or lack of dietary phosphorus intake may cause vascular dysfunction, cardiac hypertrophy, and impaired glucose tolerance. Here, we introduce recent findings about the effects of high or low dietary phosphorus intake on several organs except for bone.
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Affiliation(s)
- Yutaka Taketani
- Department of Clinical Nutrition, Institute of Biomedical Sciences, Tokushima University Graduate School, Japan
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Kawakami Y, Yamanaka-Okumura H, Naniwa-Kuroki Y, Sakuma M, Taketani Y, Takeda E. Flaxseed oil intake reduces serum small dense low-density lipoprotein concentrations in Japanese men: a randomized, double blind, crossover study. Nutr J 2015; 14:39. [PMID: 25896182 PMCID: PMC4409715 DOI: 10.1186/s12937-015-0023-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 04/01/2015] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND The effects of alpha-linolenic acid (ALA) on cardiovascular risk factors considerably vary between published reports. Therefore, we investigated the effects of 12-week supplementation with flaxseed oil (FO), which is a rich source of ALA, on cardiovascular risk factors such as serum small dense low-density lipoprotein (sd-LDL) concentrations. METHODS In a randomized, double blind, crossover study, 15 subjects ingested 10 g of FO or corn oil (CO), containing 5.49 g and 0.09 g of ALA, respectively, once daily with dinner. Blood samples were collected at 0, 4 and 12 weeks, and were used for analysis of serum lipid, lipid-related proteins, serum fatty acids and serum sd-LDL cholesterol. Differences during the test period were identified using a repeated-measures analysis of variance (ANOVA) for within-group effects. Group differences were identified using paired t-test at each blood sampling time point. RESULTS ALA and eicosapentaenoic acid concentrations were significantly higher in the FO period at 4 and 12 weeks than in the CO period. No significant differences in docosahexaenoic acid concentrations were observed between two periods, and cholesteryl ester transfer protein and apolipoprotein B concentrations were significantly lower in the FO period than in the CO period at 12 weeks. FO supplementation was associated with a significant decrease in sd-LDL concentrations at 4 and 12 weeks, and CO supplementation had no effect. Moreover, sd-LDL concentrations were significantly lower in the FO period than in the CO period at 4 weeks. Among subjects with triglyceride (TG) concentrations of >100 mg/dl, FO supplementation markedly reduced sd-LDL concentrations at 4 and 12 weeks compared with baseline. Sd-LDL concentrations significantly differed between the periods at both 4 and 12 weeks. CONCLUSION This study indicates that the FO, which is a rich source of ALA, leads to lower sd-LDL cholesterol concentrations.
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Affiliation(s)
- Yuka Kawakami
- Department of Clinical Nutrition and Food Management, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15 Kuramoto, Tokushima, 770-8503, Japan.
| | - Hisami Yamanaka-Okumura
- Department of Clinical Nutrition and Food Management, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15 Kuramoto, Tokushima, 770-8503, Japan.
| | - Yuko Naniwa-Kuroki
- Department of Clinical Nutrition and Food Management, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15 Kuramoto, Tokushima, 770-8503, Japan.
| | - Masae Sakuma
- Department of Clinical Nutrition and Food Management, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15 Kuramoto, Tokushima, 770-8503, Japan.
| | - Yutaka Taketani
- Department of Clinical Nutrition and Food Management, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15 Kuramoto, Tokushima, 770-8503, Japan.
| | - Eiji Takeda
- Department of Clinical Nutrition and Food Management, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15 Kuramoto, Tokushima, 770-8503, Japan.
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Chiba T, Matsuo H, Kawamura Y, Nagamori S, Nishiyama T, Wei L, Nakayama A, Nakamura T, Sakiyama M, Takada T, Taketani Y, Suma S, Naito M, Oda T, Kumagai H, Moriyama Y, Ichida K, Shimizu T, Kanai Y, Shinomiya N. NPT1/SLC17A1 is a renal urate exporter in humans and its common gain-of-function variant decreases the risk of renal underexcretion gout. Arthritis Rheumatol 2015; 67:281-7. [PMID: 25252215 DOI: 10.1002/art.38884] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2013] [Accepted: 09/18/2014] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Serum uric acid (SUA) levels in humans are mainly regulated by urate transporters. Recent genome-wide association studies suggested that common variants of the human sodium-dependent phosphate cotransporter type 1 gene (NPT1/SLC17A1) influence SUA. NPT1 has been reported to mediate urate transport, but its physiologic role in regulating SUA in humans remains unclear. Furthermore, the findings of replication studies of the relationship between NPT1 variants and gout have been inconsistent. The aims of this study were to investigate the effect of NPT1 on gout and to determine its physiologic role. METHODS Five hundred forty-five male Japanese patients with gout and 1,115 male Japanese control subjects were genotyped for rs1165196 (I269T), a common missense variant in NPT1. Analyses of the association between rs1165196 and gout were then conducted, focusing especially on renal underexcretion (RUE) gout. Immunohistochemical analysis and functional analysis using Xenopus oocytes were also performed. RESULTS Single-nucleotide polymorphism rs1165196 significantly decreased the risk of RUE gout (odds ratio 0.73, P = 0.031) but did not confer a risk for all gout (P = 0.123). The immunohistochemical analysis revealed that human NPT1 is localized to the apical membrane of the renal proximal tubule. The functional analysis using Xenopus oocyte expression systems showed that rs1165196 increases NPT1-mediated urate export. CONCLUSION This study showed that NPT1 is a urate exporter located in the renal proximal tubule in humans, and that its common gain-of-function variant, rs1165196, causes RUE gout, a major subtype of gout. These findings enable us to deepen our understanding of the physiologic role of NPT1 as a renal urate exporter as well as its pathophysiologic role in gout.
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Watari E, Taketani Y, Kitamura T, Tanaka T, Ohminami H, Abuduli M, Harada N, Yamanaka-Okumura H, Yamamoto H, Takeda E. Fluctuating plasma phosphorus level by changes in dietary phosphorus intake induces endothelial dysfunction. J Clin Biochem Nutr 2014; 56:35-42. [PMID: 25678749 PMCID: PMC4306666 DOI: 10.3164/jcbn.14-96] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Accepted: 09/03/2014] [Indexed: 12/21/2022] Open
Abstract
High serum phosphorus (P) impairs endothelial function by increasing oxidative stress and decreasing nitric oxide production. Serum P levels fluctuate due to circadian rhythms or dietary P intake in healthy people and due to dialysis in end-stage chronic kidney disease patients. Here we examined whether fluctuating plasma P caused by changes in dietary P intake may be involved in endothelial dysfunction, resulting in increased cardiovascular risk. Rats were fed a diet containing 0.6% P for 16 days (control group), or a diet alternating between 0.02% P and 1.2% P (LH group) or between 1.2% P and 0.02% P (HL group) every 2 days; the total amount of P intake among the groups during the feeding period was similar. In the LH and HL groups, endothelial-dependent vasodilation significantly decreased plasma 8-(OH)dG level significantly increased, and the expression of inflammatory factors such as MCP-1 increased in the endothelium as compared with the control group. These data indicate that repetitive fluctuations of plasma P caused by varying dietary P intake can impair endothelial function via increased oxidative stress and inflammatory response. Taken together, these results suggest that habitual fluctuation of dietary P intake might be a cause of cardiovascular disease through endothelial dysfunction, especially in chronic kidney disease patients.
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Affiliation(s)
- Eriko Watari
- Department of Clinical Nutrition, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15, Kuramoto-cho, Tokushima 770-8503, Japan
| | - Yutaka Taketani
- Department of Clinical Nutrition, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15, Kuramoto-cho, Tokushima 770-8503, Japan
| | - Tomoyo Kitamura
- Department of Clinical Nutrition, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15, Kuramoto-cho, Tokushima 770-8503, Japan
| | - Terumi Tanaka
- Department of Clinical Nutrition, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15, Kuramoto-cho, Tokushima 770-8503, Japan
| | - Hirokazu Ohminami
- Department of Clinical Nutrition, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15, Kuramoto-cho, Tokushima 770-8503, Japan
| | - Maerjianghan Abuduli
- Department of Clinical Nutrition, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15, Kuramoto-cho, Tokushima 770-8503, Japan
| | - Nagakatsu Harada
- Department of Nutrition and Metabolism, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Hisami Yamanaka-Okumura
- Department of Clinical Nutrition, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15, Kuramoto-cho, Tokushima 770-8503, Japan
| | - Hironori Yamamoto
- Department of Clinical Nutrition, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15, Kuramoto-cho, Tokushima 770-8503, Japan
| | - Eiji Takeda
- Department of Clinical Nutrition, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15, Kuramoto-cho, Tokushima 770-8503, Japan
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Sugihara K, Yamanaka-Okumura H, Teramoto A, Yamamoto M, Taketani Y, Siato Y, Arakawa Y, Shimada M, Takeda E. PP059-MON: The Non-Protein Respiratory Quotient as Biomarker for the Recovery from Hepatectomy in Patients with Hepatocellular Carcinoma. Clin Nutr 2014. [DOI: 10.1016/s0261-5614(14)50394-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Yamanaka-Okumura H, Sugihara K, Yamamoto M, Taketani Y, Ikemoto T, Morine Y, Imura S, Shimada M, Takeda E. PP055-MON: Recovery of Non-Protein Respiratory Quotient and Health Related Quality of Life after Living-Donor Liver Transplantation. Clin Nutr 2014. [DOI: 10.1016/s0261-5614(14)50390-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Ohminami H, Amo K, Taketani Y, Sato K, Fukaya M, Uebanso T, Arai H, Koganei M, Sasaki H, Yamanaka-Okumura H, Yamamoto H, Takeda E. Dietary combination of sucrose and linoleic acid causes skeletal muscle metabolic abnormalities in Zucker fatty rats through specific modification of fatty acid composition. J Clin Biochem Nutr 2014; 55:15-25. [PMID: 25147427 PMCID: PMC4078067 DOI: 10.3164/jcbn.14-11] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Accepted: 01/22/2014] [Indexed: 12/27/2022] Open
Abstract
A dietary combination of sucrose and linoleic acid strongly contributes to the development of metabolic disorders in Zucker fatty rats. However, the underlying mechanisms of the metabolic disorders are poorly understood. We hypothesized that the metabolic disorders were triggered at a stage earlier than the 8 weeks we had previously reported. In this study, we investigated early molecular events induced by the sucrose and linoleic acid diet in Zucker fatty rats by comparison with other combinations of carbohydrate (sucrose or palatinose) and fat (linoleic acid or oleic acid). Skeletal muscle arachidonic acid levels were significantly increased in the sucrose and linoleic acid group compared to the other dietary groups at 4 weeks, while there were no obvious differences in the metabolic phenotype between the groups. Expression of genes related to arachidonic acid synthesis was induced in skeletal muscle but not in liver and adipose tissue in sucrose and linoleic acid group rats. In addition, the sucrose and linoleic acid group exhibited a rapid induction in endoplasmic reticulum stress and abnormal lipid metabolism in skeletal muscle. We concluded that the dietary combination of sucrose and linoleic acid primarily induces metabolic disorders in skeletal muscle through increases in arachidonic acid and endoplasmic reticulum stress, in advance of systemic metabolic disorders.
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Affiliation(s)
- Hirokazu Ohminami
- Department of Clinical Nutrition, Institute of Health Biosciences, The University of Tokushima Graduate School, 3-18-15 Kuramoto, Tokushima 770-8503, Japan
| | - Kikuko Amo
- Department of Clinical Nutrition, Institute of Health Biosciences, The University of Tokushima Graduate School, 3-18-15 Kuramoto, Tokushima 770-8503, Japan
| | - Yutaka Taketani
- Department of Clinical Nutrition, Institute of Health Biosciences, The University of Tokushima Graduate School, 3-18-15 Kuramoto, Tokushima 770-8503, Japan
| | - Kazusa Sato
- Department of Clinical Nutrition, Institute of Health Biosciences, The University of Tokushima Graduate School, 3-18-15 Kuramoto, Tokushima 770-8503, Japan
| | - Makiko Fukaya
- Department of Clinical Nutrition, Institute of Health Biosciences, The University of Tokushima Graduate School, 3-18-15 Kuramoto, Tokushima 770-8503, Japan
| | - Takashi Uebanso
- Department of Clinical Nutrition, Institute of Health Biosciences, The University of Tokushima Graduate School, 3-18-15 Kuramoto, Tokushima 770-8503, Japan
| | - Hidekazu Arai
- Department of Clinical Nutrition, Institute of Health Biosciences, The University of Tokushima Graduate School, 3-18-15 Kuramoto, Tokushima 770-8503, Japan ; Department of Laboratory of Clinical Nutrition Management, School of Food and Nutritional Sciences & Graduate School of Integrated Pharmaceutical and Nutritional Sciences, The University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Megumi Koganei
- Nutrition Research Department, Food Science Research Laboratories, Meiji Co., Ltd., 540 Naruda, Odawara, Kanagawa 250-0862, Japan
| | - Hajime Sasaki
- Nutrition Research Department, Food Science Research Laboratories, Meiji Co., Ltd., 540 Naruda, Odawara, Kanagawa 250-0862, Japan
| | - Hisami Yamanaka-Okumura
- Department of Clinical Nutrition, Institute of Health Biosciences, The University of Tokushima Graduate School, 3-18-15 Kuramoto, Tokushima 770-8503, Japan
| | - Hironori Yamamoto
- Department of Clinical Nutrition, Institute of Health Biosciences, The University of Tokushima Graduate School, 3-18-15 Kuramoto, Tokushima 770-8503, Japan
| | - Eiji Takeda
- Department of Clinical Nutrition, Institute of Health Biosciences, The University of Tokushima Graduate School, 3-18-15 Kuramoto, Tokushima 770-8503, Japan
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Morimoto Y, Sakuma M, Ohta H, Suzuki A, Matsushita A, Umeda M, Ishikawa M, Taketani Y, Takeda E, Arai H. Estimate of dietary phosphorus intake using 24-h urine collection. J Clin Biochem Nutr 2014; 55:62-6. [PMID: 25120281 PMCID: PMC4078069 DOI: 10.3164/jcbn.14-15] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Accepted: 02/18/2014] [Indexed: 01/19/2023] Open
Abstract
Increases in serum phosphorus levels and dietary phosphorus intake induces vascular calcification, arterial sclerosis and cardiovascular diseases. Limiting phosphorus intake is advisable, however, no assessment methods are capable of estimating dietary phosphorus intake. We hypothesized that urinary phosphorus excretion can be translated into estimation of dietary phosphorus intake, and we evaluated whether a 24-h urine collection method could estimate dietary phosphorus intake. Thirty two healthy subjects were recruited for this study. Subjects collected urine samples over 24 h and weighed dietary records. We calculated dietary protein intake and phosphorus intake from dietary records and urine collection, and investigated associations between the two methods in estimating protein and phosphorus intake. Significant positive correlations were observed between dietary records and UC for protein and phosphorus intake. The average intakes determined from dietary records were significantly higher than from urine collection for both protein and phosphorus. There was a significant positive correlation between both the phosphorus and protein difference in dietary records and urine collection. The phosphorus-protein ratio in urine collection was significantly higher than in dietary records. Our data indicated that the 24-h urine collection method can estimate the amount of dietary phosphorus intake, and the results were superior to estimation by weighed dietary record.
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Affiliation(s)
- Yuuka Morimoto
- Laboratory of Clinical Nutrition and Management, Graduate School of Nutritional and Environmental Sciences, The University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Masae Sakuma
- Laboratory of Clinical Nutrition and Management, Graduate School of Nutritional and Environmental Sciences, The University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Hiroyuki Ohta
- Laboratory of Clinical Nutrition and Management, Graduate School of Nutritional and Environmental Sciences, The University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Akitsu Suzuki
- Laboratory of Clinical Nutrition and Management, Graduate School of Nutritional and Environmental Sciences, The University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Asami Matsushita
- Laboratory of Clinical Nutrition and Management, Graduate School of Nutritional and Environmental Sciences, The University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Minako Umeda
- School of Nursing Sciences, The University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Makoto Ishikawa
- School of Nursing Sciences, The University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Yutaka Taketani
- Department of Clinical Nutrition, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15 Kuramoto, Tokushima 770-8503, Japan
| | - Eiji Takeda
- Department of Clinical Nutrition, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15 Kuramoto, Tokushima 770-8503, Japan
| | - Hidekazu Arai
- Laboratory of Clinical Nutrition and Management, Graduate School of Nutritional and Environmental Sciences, The University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
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Nakahashi O, Yamamoto H, Tanaka S, Kozai M, Takei Y, Masuda M, Kaneko I, Taketani Y, Iwano M, Miyamoto KI, Takeda E. Short-term dietary phosphate restriction up-regulates ileal fibroblast growth factor 15 gene expression in mice. J Clin Biochem Nutr 2014; 54:102-8. [PMID: 24688219 PMCID: PMC3947966 DOI: 10.3164/jcbn.13-109] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Accepted: 12/25/2013] [Indexed: 12/15/2022] Open
Abstract
Members of the fibroblast growth factor (FGF) 19 subfamily, including FGF23, FGF15/19, and FGF21, have a role as endocrine factors which influence the metabolism of inorganic phosphate (Pi) and vitamin D, bile acid, and energy. It has been reported that dietary Pi regulates circulating FGF23. In this study, the short-term effects of dietary Pi restriction on the expression of FGF19 subfamily members in mice were analyzed. An initial analysis confirmed plasma FGF23 levels positively correlated with the amount of dietary Pi. On the other hand, ileal Fgf15 gene expression, but not hepatic Fgf21 gene expression, was up-regulated by dietary Pi restriction. In addition, we observed the increase of plasma 1,25-dihydroxyvitamin D [1,25(OH)2D] levels by dietary Pi restriction, and the up-regulation of ileal Fgf15 mRNA expression by 1,25(OH)2D3 and vitamin D receptor (VDR). Importantly, dietary Pi restriction-induced Fgf15 gene expression was prevented in VDR-knockout mice. Furthermore, diurnal variations of plasma triglyceride concentrations and hepatic mRNA expression of the bile acid synthesis enzyme Cyp7a1 as one of Fgf15 negative target genes was influenced by dietary Pi restriction. These results suggest that dietary Pi restriction up-regulates ileal Fgf15 gene expression through 1,25(OH)2D3 and VDR, and may affect hepatic bile acid homeostasis.
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Affiliation(s)
- Otoki Nakahashi
- Department of Clinical Nutrition, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Hironori Yamamoto
- Department of Clinical Nutrition, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan ; Department of Health and Nutrition, Faculty of Human Life, Jin-ai University, 3-1-1 Ohde-cho, Echizen-shi, Fukui 915-8586, Japan ; Division of Nephrology, Department of General Medicine, Faculty of Medical Sciences, University of Fukui, Fukui 910-1193, Japan
| | - Sarasa Tanaka
- Department of Clinical Nutrition, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Mina Kozai
- Department of Clinical Nutrition, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Yuichiro Takei
- Department of Clinical Nutrition, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Masashi Masuda
- Department of Clinical Nutrition, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Ichiro Kaneko
- Department of Molecular Nutrition, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Yutaka Taketani
- Department of Clinical Nutrition, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Masayuki Iwano
- Division of Nephrology, Department of General Medicine, Faculty of Medical Sciences, University of Fukui, Fukui 910-1193, Japan
| | - Ken-Ichi Miyamoto
- Department of Molecular Nutrition, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
| | - Eiji Takeda
- Department of Clinical Nutrition, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
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