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Journal of Nutritional Science and Vitaminology

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https://www.readbyqxmd.com/read/27928126/when-was-b1-the-first-vitamin-discovered-an-alternative-perspective
#1
Shozo Sugiura
No abstract text is available yet for this article.
2016: Journal of Nutritional Science and Vitaminology
https://www.readbyqxmd.com/read/27928125/yolk-of-the-century-egg-pidan-contains-a-readily-digestible-form-of-free-vitamin-b12
#2
Fei Teng, Tomohiro Bito, Shigeo Takenaka, Yukinori Yabuta, Fumio Watanabe
In this study, we determined the vitamin B12 content of commercially available century eggs (pidan) and characterized their vitamin B12 compositions in detail. The egg yolk and white of century eggs (each 100 g wet weight) contained 1.9±0.6 and 0.8±0.3 μg of vitamin B12, respectively. The vitamin B12 compounds purified from the egg yolk and white were identified as vitamin B12 using liquid chromatography-electrospray ionization/tandem mass spectrometry. The vitamin B12 present in the yolk or white of century eggs was recovered completely in macromolecular fractions, but not in free vitamin B12 fractions by Sephadex G-50 gel filtration...
2016: Journal of Nutritional Science and Vitaminology
https://www.readbyqxmd.com/read/27928124/the-effect-of-the-consumption-of-egg-on-serum-lipids-and-antioxidant-status-in-healthy-subjects
#3
Yoshimi Kishimoto, Chie Taguchi, Norie Suzuki-Sugihara, Emi Saita, Mika Usuda, Wei Wang, Yasunobu Masuda, Kazuo Kondo
The egg is a nutrient-dense food and contains a number of antioxidants. The consumption of eggs has been considered to improve the balance of diets, although its impact on serum cholesterol levels has been a matter of concern in many countries. Here, we conducted a pilot study to investigate whether daily additional consumption of an egg might affect serum lipid profiles and also antioxidant status in healthy subjects. Fourteen male subjects were provided with breakfasts including a boiled egg for 4 wk. At the end of intervention, serum concentrations of total cholesterol (TC) and low-density lipoprotein cholesterol (LDL-C) were unchanged, despite the significant increase in the intake of dietary cholesterol...
2016: Journal of Nutritional Science and Vitaminology
https://www.readbyqxmd.com/read/27928123/consumption-of-japanese-yam-improves-lipid-metabolism-in-high-cholesterol-diet-fed-rats
#4
Yuri Kusano, Nobuko Tsujihara, Hironori Masui, Hana Kozai, Wakako Takeuchi
We investigated the effects of dietary Japanese yam (Dioscorea japonica Thunb.) on lipid metabolism. Male Wistar rats (6 wk old) were fed a high-cholesterol diet for 6 wk and then supplemented with 26% of Japanese yam or 0.5% of its constituent diosgenin for a further 4 wk of high-cholesterol feeding (C6-J4 and C6-D4 groups, respectively). In the C6-J4 group, body weight gains significantly decreased, but skeletal muscle fiber sizes in quadriceps significantly increased compared with the other groups. Furthermore, Japanese yam supplementation resulted in the reduction of triglyceride contents in their liver, quadriceps, and intra-abdominal visceral fat...
2016: Journal of Nutritional Science and Vitaminology
https://www.readbyqxmd.com/read/27928122/anti-hyperglycemic-effect-of-a-kudzu-pueraria-lobata-vine-extract-in-ovariectomized-mice
#5
Teruyoshi Tanaka, Yukihiro Yokota, Hanjun Tang, Nobuhiro Zaima, Tatsuya Moriyama, Yukio Kawamura
Postmenopausal diabetes is exacerbated by estrogen deficiency. Ovariectomized (OVX) animal models can be used to develop strategies for preventing or treating postmenopausal symptoms. We previously found that a diet containing kudzu (Pueraria lobata) vine ethanol extract (PVEE) suppressed weight gain in OVX mice. Therefore, this study further elucidated how PVEE affected OVX mice. Ten-week-old OVX or sham-operated mice were fed diets containing either no PVEE (control) or 20 mg•kg(-1)•d(-1) PVEE for 8 wk, 5 mg•kg(-1)•d(-1) PVEE for 24 wk, or 20 mg•kg(-1)•d(-1) puerarin (daidzein-8-C-glucoside), a major isoflavone present in PVEE, for 10 wk...
2016: Journal of Nutritional Science and Vitaminology
https://www.readbyqxmd.com/read/27928121/resistant-maltodextrin-decreases-micellar-solubility-of-lipids-and-diffusion-of-bile-salt-micelles-and-suppresses-incorporation-of-micellar-fatty-acids-into-caco-2-cells
#6
Ikuo Ikeda, Kyouhei Tamakuni, Tomomi Sakuma, Ran Ozawa, Nao Inoue, Yuka Kishimoto
Several studies have suggested that resistant maltodextrin (RMD) suppresses intestinal lipid absorption in experimental animals and humans. However, possible mechanisms underlying this effect are not known. In this study, effects of RMD on processes of the absorption of various lipids were investigated in vitro. RMD dose-dependently suppressed the solubility of various lipid components, including 1-mono-oleoylglycerol, oleic acid, and phosphatidylcholine in bile salt micelles in vitro. When the diffusion rate of bile salt micelles through a filter membrane was investigated in vitro, bile salt micelles containing RMD diffused more slowly than those without RMD...
2016: Journal of Nutritional Science and Vitaminology
https://www.readbyqxmd.com/read/27928120/effect-of-long-term-proton-pump-inhibitor-therapy-on-nutritional-status-in-elderly-hospitalized-patients
#7
Mariko Nakamichi, Hidetaka Wakabayashi
The purpose was to investigate the association between proton pump inhibitor (PPI) therapy and nutritional status in elderly hospitalized patients. Participants were 190 elderly patients admitted to the long-term care wards, convalescence rehabilitation wards, and community integrated care wards in January 2015. Nutritional status was assessed using the mini nutritional assessment short-form (MNA-SF). The PPI use group was compared with the PPI non-use group regarding nutrition status. Logistic regression analysis was used to examine whether the period of PPI therapy was associated independently with malnutrition following adjustment for covariates including gender, age, and serum albumin level...
2016: Journal of Nutritional Science and Vitaminology
https://www.readbyqxmd.com/read/27928119/hypolipidemic-effect-of-the-autoclaved-extract-prepared-from-pea-pisum-sativum-l-pods-in-vivo-and-in-vitro
#8
Kae Inagaki, Yuuki Nishimura, Emiko Iwata, Sachinobu Manabe, Masahiro Goto, Yoshio Ogura, Hisako Hotta
By autoclaving, we obtained a polyphenol and dietary fiber from pea (Pisum sativum L.) pods in parallel without acid or alkali treatment or organic solvent extraction. Rats fed a high-sucrose (HS) diet containing 3% autoclaved extract (AE) for 4 wk exhibited significantly lower serum triglyceride and total cholesterol levels than rats fed a HS diet. AE and soluble dietary fiber (SDF) from AE exhibited pancreatic lipase inhibitory activity at 13.3 mg/mL in vitro. AE and insoluble dietary fiber (IDF) from AE adsorbed cholesterol...
2016: Journal of Nutritional Science and Vitaminology
https://www.readbyqxmd.com/read/27928118/validity-and-reliability-of-field-resonance-raman-spectroscopy-for-assessing-carotenoid-status
#9
Anton Janse VAN Rensburg, Friede Wenhold
Carotenoids in fruit and vegetables are important for health, yet determining dietary intake is challenging. This study aimed to establish the validity and reliability of a portable field Resonance Raman Spectroscope (RRS) in reflecting human carotenoid status. A diagnostic accuracy study involving 81 healthy adults was conducted. The RRS was the index test. Serum carotenoids (β-carotene, lycopene, lutein, and zeaxanthin) and consumption of fruit and vegetables were primary and secondary reference standards respectively...
2016: Journal of Nutritional Science and Vitaminology
https://www.readbyqxmd.com/read/27928117/relationship-between-sugar-intake-and-obesity-among-school-age-children-in-kaohsiung-taiwan
#10
Pei-Ying Lin, Fang-Yu Lin, Ting-Chun Chen, Wen-Lee Chen, Jia-Yau Doong, Saiko Shikanai, Nobuko Sarukura, Shigeru Yamamoto
In recent years, the prevalence and problem of overweight and obesity in Taiwanese children have increased. There are many reports that the excessive intake of sugar increases the risk of lifestyle-related disease. However, sugar intake in Taiwanese children is not known. In this study, we investigated sugar intake from sugar-sweetened beverages, snacks and desserts among school-age children in Kaohsiung, Taiwan. We also tried to determine the relationship between sugar intake and body mass index (BMI). We contacted all the public elementary schools (10 schools) in a district, Kaohsiung, and obtained permission from 3 schools...
2016: Journal of Nutritional Science and Vitaminology
https://www.readbyqxmd.com/read/27928116/effects-of-the-national-school-lunch-program-on-bone-growth-in-japanese-elementary-school-children
#11
Toshiyuki Kohri, Naoko Kaba, Tatsuki Itoh, Satoshi Sasaki
The Japanese school lunch program with milk was designed to supply 33-50% of the necessary nutrients per day and 50% of the recommended dietary allowance for calcium, which is difficult to obtain from Japanese meals. Although this program contributes to the mental and physical development of children, the effect of these meals on the bone growth in children remains unknown. Therefore, we compared the effect of school lunch with milk on bone growth between elementary school children attending schools that did not enforce the school lunch with milk program (box-lunch group) and those attending schools that did enforce the program (school-lunch group)...
2016: Journal of Nutritional Science and Vitaminology
https://www.readbyqxmd.com/read/27928115/rice-bran-extract-reduces-the-risk-of-atherosclerosis-in-post-menopausal-vietnamese-women
#12
Bui Thi Nhung, Le Danh Tuyen, Vu Anh Linh, Nguyen Do Van Anh, Tran Thuy Nga, Vu Thi Minh Thuc, Kei Yui, Yukihiko Ito, Yuri Nakashima, Shigeru Yamamoto
We investigated whether pre-germinated brown rice bran extract containing acylated steryl glucosides (PSG) reduces the risk of atherosclerosis in post-menopausal Vietnamese women. A total of 60 post-menopausal Vietnamese women (45-65 y old) with high LDL cholesterol levels (over 140 mg/dL) were randomly divided into PSG (n=30) and placebo (n=30) groups. The subjects in the PSG group were assigned a daily intake of 6 capsules containing 50 mg PSG, and the subjects in the placebo group were assigned a daily intake of 6 capsules containing corn oil for 6 mo...
2016: Journal of Nutritional Science and Vitaminology
https://www.readbyqxmd.com/read/27928114/thorough-mastication-prior-to-swallowing-increases-postprandial-satiety-and-the-thermic-effect-of-a-meal-in-young-women
#13
Naho Komai, Naoko Motokubota, Maki Suzuki, Ikuyo Hayashi, Toshio Moritani, Narumi Nagai
There is evidence to support that mastication may contribute to the prevention of weight gain via reduction of appetite sensations and subsequent energy intake. However, the metabolic effect of mastication after consumption of a daily meal, composed of the staple food (rice), soup, main and side dishes, is limited. Therefore, the effect of thorough mastication on greater satiety and the thermic effect of a meal (TEM) was investigated in young women. In study 1, energy expenditure (EE) derived from masticatory muscle activity for 20 min was measured while chewing hard, tasteless, non-caloric gum in seven subjects...
2016: Journal of Nutritional Science and Vitaminology
https://www.readbyqxmd.com/read/27928113/a-combination-of-%C3%AE-tocotrienol-and-ferulic-acid-synergistically-inhibits-telomerase-activity-in-dld-1-human-colorectal-adenocarcinoma-cells
#14
Takahiro Eitsuka, Naoto Tatewaki, Hiroshi Nishida, Kiyotaka Nakagawa, Teruo Miyazawa
Rice bran is a rich source of functional compounds, including tocotrienol (T3) and ferulic acid (FA). We previously investigated the anti-cancer properties of T3, and reported on the potent inhibitory effects of δ-T3 on angiogenesis and telomerase activity. In this study, we examined the synergistic suppressive effects of the combination of δ-T3 and FA on telomerase activity in DLD-1 human colorectal adenocarcinoma cells. Co-treatment with δ-T3 and FA significantly decreased cellular telomerase activity compared to treatment with δ-T3 alone, whereas FA alone had no inhibitory effect...
2016: Journal of Nutritional Science and Vitaminology
https://www.readbyqxmd.com/read/27725414/proline-decreases-the-suppressive-effect-of-histidine-on-food-intake-and-fat-accumulation
#15
Riku Asahi, Kaoru Tanaka, Takahiko J Fujimi, Nobuyuki Kanzawa, Shigeru Nakajima
We recently suggested that proline might decrease the suppressive effect of histidine on food intake. Our purpose in the present study was to investigate the influence of proline on the suppressive effect of histidine on food intake and accumulation of body fat. Male Wistar rats were divided into four groups and allowed free access to the following diets for 3 wk: control (C), 5% proline (P), 5% histidine (H), or 5% histidine plus 10% proline (HP) diets. Food intake for 7 d and retroperitoneal fat tissue weight at the end of the experimental period of the HP diet group were greater than those of the H diet group, whereas no significant difference existed between the HP diet group and the C diet group...
2016: Journal of Nutritional Science and Vitaminology
https://www.readbyqxmd.com/read/27725413/%C3%AE-nicotinamide-mononucleotide-an-anti-aging-candidate-compound-is-retained-in-the-body-for-longer-than-nicotinamide-in-rats
#16
Tomoyo Kawamura, Noriyuki Mori, Katsumi Shibata
The turnover of the oxidized form of nicotinamide adenine dinucleotide (NAD(+)) has attracted interest in regard to longevity. Thus, compounds that can rapidly increase the cellular NAD(+) concentration have been surveyed by many researchers. Of those, β-nicotinamide mononucleotide (β-NMN) has been focused on. Studies on the biosynthesis of NAD(+) from β-NMN have been reported at the cellular level, but not at the whole animal level. In the present study, we investigated whether β-NMN is superior to nicotinamide (Nam) as a precursor of NAD(+) in whole animal experiments...
2016: Journal of Nutritional Science and Vitaminology
https://www.readbyqxmd.com/read/27725412/folate-deficiency-was-associated-with-increased-alanine-aminotransferase-and-glutamyl-transpeptidase-concentrations-in-a-chinese-hypertensive-population-a-cross-sectional-study
#17
Wen-Xing Li, Wei Li, Jia-Qian Cao, Haiyue Yan, Yuanyuan Sun, Hong Zhang, Qiang Zhang, Ling Tang, Manman Wang, Jing-Fei Huang, Dahai Liu
Alanine aminotransferase (ALT), aspartate transaminase (AST), and glutamyl transpeptidase (GGT) were three key enzymes in the hepatic metabolism. This study aimed to investigate the effect of homocysteine (Hcy) metabolism gene polymorphisms and serum Hcy and folate level on the hepatic functions in a Chinese hypertensive population. A representative sample with 480 subjects aged 28-75 was enrolled in 2005.9-2005.12 from six hospitals in different Chinese regions. Serum ALT, AST and GGT were measured by using an automatic biochemistry analyzer...
2016: Journal of Nutritional Science and Vitaminology
https://www.readbyqxmd.com/read/27725411/effects-of-taurine-administration-on-carbohydrate-metabolism-in-skeletal-muscle-during-the-post-exercise-phase
#18
Yumiko Takahashi, Yuki Tamura, Yutaka Matsunaga, Yu Kitaoka, Shin Terada, Hideo Hatta
We previously reported that taurine (2-aminoethanesulfonic acid; dose: 0.5 mg/g body weight) administration after treadmill running at 25 m/min for 90 min increased the glycogen concentration in the skeletal muscle of ICR mice at 120 min after the exercise (Takahashi et al. 2014). In the current study, we further investigated the effects of taurine administration on glycogen repletion and carbohydrate metabolism in the tibialis anterior muscle after endurance exercise. The metabolomic profiles of the tibialis anterior muscle at 120 min after the exercise were analyzed by a capillary electrophoresis-time-of-flight mass spectrometry (n=6)...
2016: Journal of Nutritional Science and Vitaminology
https://www.readbyqxmd.com/read/27725410/the-combination-of-green-tea-extract-and-eriodictyol-inhibited-high-fat-high-sucrose-diet-induced-cholesterol-upregulation-is-accompanied-by-suppression-of-cholesterol-synthesis-enzymes
#19
Mai Yamashita, Motofumi Kumazoe, Yuki Nakamura, Yeong Seon Won, Jaehoon Bae, Shuya Yamashita, Hirofumi Tachibana
Western diets induce obesity associated with an increased risk of hypercholesterolaemia. Indeed, obesity-induced hypercholesterolaemia is correlated with increased coronary cardiovascular disease (CVD) risk. Male C57BL/6J mice were fed a normal diet, high-fat and high-sucrose diet (HF/HS), HF/HS with green tea extract powder diet (HF/HS+GT), HF/HS with eriodictyol diet (HF/HS+Eri), or HF/HS with green tea extract powder and eriodictyol diet (HF/HS+GT+Eri) for 8 wk. Body weight was lower in the HF/HS+GT+Eri group than in the HF/HS group (-8...
2016: Journal of Nutritional Science and Vitaminology
https://www.readbyqxmd.com/read/27725409/dietary-egg-yolk-supplementation-improves-low-protein-diet-induced-fatty-liver-in-rats
#20
Kazuo Erami, Yasutake Tanaka, Sayaka Kawamura, Motonori Miyago, Ai Sawazaki, Katsumi Imaizumi, Masao Sato
Egg yolk is an important source of nutrients and contains different bioactive substances. In the present study, we studied the benefits of egg yolk in preventing low-protein-diet-induced fatty liver in rats. Rats were fed the following diets, which were based on the AIN-76 formula, for 2 wk: an adequate-protein diet containing 20% casein (C), a low-protein diet containing 5% casein (LP-C), a low-protein diet supplemented with 12.5% egg yolk (LP-EY), and a low-protein diet supplemented with 4.1% egg yolk oil (LP-EYO)...
2016: Journal of Nutritional Science and Vitaminology
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