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Nomura S, Monobe M, Ema K, Yoshida K, Yamashita S, Ogino A, Nesumi A. Effects of a Tea Cultivar "MK5601" on Behaviors and Hippocampal Neurotrophin-3 Levels in Middle-Aged Mice. J Nutr Sci Vitaminol (Tokyo) 2021; 67:170-179. [PMID: 34193676 DOI: 10.3177/jnsv.67.170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Dietary factors are thought to play an important role in the prevention of cognition diseases and depression in late life. In the present study, we compared the effects between the theogallin-rich tea cultivar, "MK5601" and a common Japanese tea cultivar, "Yabukita" on behaviors and hippocampal neurotrophin levels in experimental animals. Middle-aged mice (aged 8 mo) were given either of the tea infusions or water ad libitum for 4 mo. In the novel object location test, the middle-aged mice drinking water or "Yabukita" performed worse than young mice (aged 2-3 mo) although the middle-aged mice drinking "MK5601" retained spatial memory at the same level as the young mice. We also found that the middle-aged mice drinking "MK5601" showed high levels of neurotrophin-3 in the hippocampus. In conclusion, the "MK5601" tea infusion appears to be effective in preventing age-related changes in cognitive function, as compared with a common Japanese tea cultivar.
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Affiliation(s)
- Sachiko Nomura
- Tea Research Division, Institute of Fruit Tree and Tea Science, National Agriculture and Food Research Organization (NARO)
| | - Manami Monobe
- Tea Research Division, Institute of Fruit Tree and Tea Science, National Agriculture and Food Research Organization (NARO)
| | - Kaori Ema
- Tea Research Division, Institute of Fruit Tree and Tea Science, National Agriculture and Food Research Organization (NARO)
| | - Katsuyuki Yoshida
- Tea Research Division, Institute of Fruit Tree and Tea Science, National Agriculture and Food Research Organization (NARO)
| | - Shuya Yamashita
- Tea Research Division, Institute of Fruit Tree and Tea Science, National Agriculture and Food Research Organization (NARO)
| | - Akiko Ogino
- Tea Research Division, Institute of Fruit Tree and Tea Science, National Agriculture and Food Research Organization (NARO)
| | - Atsushi Nesumi
- Tea Research Division, Institute of Fruit Tree and Tea Science, National Agriculture and Food Research Organization (NARO)
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Maeda-Yamamoto M, Okuda Y, Ohsuge T, Monobe M. Examination of Conditions for the Efficient Extraction of Various Functional Ingredients from Tea Leaves ( Camellia sinensis L.) using a Tea Infuser, ‘Rich plus’ (RICH+ ®). J JPN SOC FOOD SCI 2014. [DOI: 10.3136/nskkk.61.586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Maeda-Yamamoto M, Saito T, Nesumi A, Tokuda Y, Ema K, Honma D, Ogino A, Monobe M, Murakami A, Murakami A, Tachibana H. Chemical analysis and acetylcholinesterase inhibitory effect of anthocyanin-rich red leaf tea (cv. Sunrouge). JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2012; 92:2379-86. [PMID: 22419270 DOI: 10.1002/jsfa.5644] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2011] [Revised: 02/01/2012] [Accepted: 02/01/2012] [Indexed: 05/24/2023]
Abstract
BACKGROUND The purpose of this study was to evaluate the effects of leaf order or crop season on anthocyanins and other chemicals in the anthocyanin-rich tea cultivar 'Sunrouge' (Camellia sinensis x C. taliensis) by using high-performance liquid chromatography, and to study the effect of 'Sunrouge' extract on acetylcholinesterase (AChE) activity in human neuroblastoma SK-N-SH cells. RESULTS The total anthocyanin content was higher in the third (3.09 mg g⁻¹) than in the second (2.24 mg g⁻¹) or first crop season (1.79 mg g⁻¹). The amount of anthocyanins contained in the stem was high (1.61 mg g⁻¹). In the third crop season, the concentrations of delphinidin-3-O-β-D-(6-(E)-p-coumaroyl)galactopyranoside (DCGa), cyanidin-3-O-β-D-(6-(E)-p-coumaroyl)galactopyranoside, delphinidin-3-O-β-D-galactopyranoside, delphinidin-3-O-β-D-(6-O-(Z)-p-coumaroyl)galactopyranoside, cyanidin-3-O-β-D-galactoside, and delphinidin-3-O-β-D-glucoside were 1.57 mg g⁻¹, 0.52 mg g⁻¹, 0.40 mg g⁻¹, 0.22 mg g⁻¹, 0.14 mg g⁻¹, and 0.11 mg g⁻¹, respectively. DCGa accounted for about 50% of the anthocyanins present. The suppressive effect of 'Sunrouge' water extract on AChE activity in human neuroblastoma SK-N-SH cells was the strongest among the three tea cultivars ('Sunrouge', 'Yabukita' and 'Benifuuki'). CONCLUSION These results suggested that 'Sunrouge' might protect humans from humans from AChE-related diseases by suppressing AChE activity. To obtain sufficient amounts of anthocyanins, catechins and/or caffeine for a functional food material, 'Sunrouge' from the third crop season should be used.
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Affiliation(s)
- Mari Maeda-Yamamoto
- NARO Institute of Vegetable and Tea Science, Shizuoka, Makurazaki, Kagoshima, Japan.
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Fujimura Y, Kurihara K, Ida M, Kosaka R, Miura D, Wariishi H, Maeda-Yamamoto M, Nesumi A, Saito T, Kanda T, Yamada K, Tachibana H. Metabolomics-driven nutraceutical evaluation of diverse green tea cultivars. PLoS One 2011; 6:e23426. [PMID: 21853132 PMCID: PMC3154454 DOI: 10.1371/journal.pone.0023426] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2011] [Accepted: 07/16/2011] [Indexed: 02/05/2023] Open
Abstract
Background Green tea has various health promotion effects. Although there are numerous tea cultivars, little is known about the differences in their nutraceutical properties. Metabolic profiling techniques can provide information on the relationship between the metabolome and factors such as phenotype or quality. Here, we performed metabolomic analyses to explore the relationship between the metabolome and health-promoting attributes (bioactivity) of diverse Japanese green tea cultivars. Methodology/Principal Findings We investigated the ability of leaf extracts from 43 Japanese green tea cultivars to inhibit thrombin-induced phosphorylation of myosin regulatory light chain (MRLC) in human umbilical vein endothelial cells (HUVECs). This thrombin-induced phosphorylation is a potential hallmark of vascular endothelial dysfunction. Among the tested cultivars, Cha Chuukanbohon Nou-6 (Nou-6) and Sunrouge (SR) strongly inhibited MRLC phosphorylation. To evaluate the bioactivity of green tea cultivars using a metabolomics approach, the metabolite profiles of all tea extracts were determined by high-performance liquid chromatography-mass spectrometry (LC-MS). Multivariate statistical analyses, principal component analysis (PCA) and orthogonal partial least-squares-discriminant analysis (OPLS-DA), revealed differences among green tea cultivars with respect to their ability to inhibit MRLC phosphorylation. In the SR cultivar, polyphenols were associated with its unique metabolic profile and its bioactivity. In addition, using partial least-squares (PLS) regression analysis, we succeeded in constructing a reliable bioactivity-prediction model to predict the inhibitory effect of tea cultivars based on their metabolome. This model was based on certain identified metabolites that were associated with bioactivity. When added to an extract from the non-bioactive cultivar Yabukita, several metabolites enriched in SR were able to transform the extract into a bioactive extract. Conclusions/Significance Our findings suggest that metabolic profiling is a useful approach for nutraceutical evaluation of the health promotion effects of diverse tea cultivars. This may propose a novel strategy for functional food design.
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Affiliation(s)
- Yoshinori Fujimura
- Innovation Center for Medical Redox Navigation, Kyushu University, Higashi-ku, Fukuoka, Japan
| | - Kana Kurihara
- Faculty of Agriculture, Kyushu University, Higashi-ku, Fukuoka, Japan
| | - Megumi Ida
- Faculty of Agriculture, Kyushu University, Higashi-ku, Fukuoka, Japan
| | - Reia Kosaka
- Faculty of Agriculture, Kyushu University, Higashi-ku, Fukuoka, Japan
| | - Daisuke Miura
- Innovation Center for Medical Redox Navigation, Kyushu University, Higashi-ku, Fukuoka, Japan
| | - Hiroyuki Wariishi
- Innovation Center for Medical Redox Navigation, Kyushu University, Higashi-ku, Fukuoka, Japan
- Faculty of Agriculture, Kyushu University, Higashi-ku, Fukuoka, Japan
- Bio-Architecture Center, Kyushu University, Higashi-ku, Fukuoka, Japan
| | - Mari Maeda-Yamamoto
- National Institute of Vegetable and Tea Sciences, National Agriculture and Food Research Organization, Shimada, Shizuoka, Japan
| | - Atsushi Nesumi
- National Institute of Vegetable and Tea Sciences, National Agriculture and Food Research Organization, Shimada, Shizuoka, Japan
| | | | | | - Koji Yamada
- Faculty of Agriculture, Kyushu University, Higashi-ku, Fukuoka, Japan
| | - Hirofumi Tachibana
- Innovation Center for Medical Redox Navigation, Kyushu University, Higashi-ku, Fukuoka, Japan
- Faculty of Agriculture, Kyushu University, Higashi-ku, Fukuoka, Japan
- Bio-Architecture Center, Kyushu University, Higashi-ku, Fukuoka, Japan
- * E-mail:
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