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Wang J, Dong L, Hu JQ, Wang YYF, Li A, Peng B, Zhang BW, Liu JM, Wang S. Differential regulation and preventive mechanisms of green tea powder with different quality attributes on high-fat diet-induced obesity in mice. Front Nutr 2022; 9:992815. [PMID: 36245513 PMCID: PMC9559937 DOI: 10.3389/fnut.2022.992815] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 09/15/2022] [Indexed: 11/13/2022] Open
Abstract
Tea powder has been reported to have some physiological functions. However, there is no report on whether there are differences in the active ingredients of tea powder with different qualities and whether there are different prebiotic mechanisms. This study was aimed to investigate the effects of different qualities of tea powder on preventing obesity from different aspects, namely antioxidation, inflammation, lipid-lowering, and intestinal flora, using an obesity mouse model. The results showed that all three types of tea powder with different qualities could reduce body weight and decrease serum TC, TG, and LDL-C. However, tea powder with different quality attributes exhibited diverse modulatory effects and mechanisms. Tender tea powder contained more tea polyphenols, and it had a better effect on improving oxidative stress. Tender tea powder significantly decreased the abundances of Blautia, Bilophila, and Oscillibacter, and increased the abundances of Alloprevotella, Lachnoclostridium, Romboutsia, and Ruminococcaceae_UCG-004. Coarse tea powder contained more dietary fiber, and had a better effect on reducing the food intake and improving lipid metabolism, which could reduce lipid synthesis and increase lipid β-oxidation. Coarse tea powder significantly decreased the abundance of Dubosiella and increased the abundances of the Lachnospiraceae_NK4A136 group and Coriobacteriaceae_UCG-002. Our findings provide a theoretical reference for the comprehensive utilization of tea powder.
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Rujanapun N, Jaidee W, Duangyod T, Phuneerub P, Paojumroom N, Maneerat T, Pringpuangkeo C, Ramli S, Charoensup R. Special Thai Oolong Tea: Chemical Profile and In Vitro Antidiabetic Activities. Front Pharmacol 2022; 13:797032. [PMID: 35321328 PMCID: PMC8936575 DOI: 10.3389/fphar.2022.797032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 02/04/2022] [Indexed: 12/03/2022] Open
Abstract
Special Thai oolong tea is oolong tea (Camellia sinensis (L.) Kuntze) steamed with selected Thai botanical drugs. Oolong tea steamed with ginger (Zingiber officinale), lemongrass (Cymbopogon citratus), and celery (Anathallis graveolens L.) is called eternity tea (EN), whereas peaceful rest (PR) tea is made of oolong tea leaves steamed with Indian gooseberry (Phyllanthus emblica), Turkey berry (Solanum torvum), and wild betel leaf bush leaves (Piper sarmentosum). Oolong tea is known for its numerous biological activities including antidiabetic properties. However, the effect of the additional botanical drugs on the biological activities of special oolong teas has not yet been explored. From the results, the PR extract exhibited the best activity in the in vitro assays relevant to antidiabetic properties such as chemical antioxidant, anti-inflammation, anti-adipogenesis, enzyme inhibition, and glucose uptake and consumption. The UHPLC-QTOF-MS/MS profiles of PR and EN extracts indicated chemical profiles different from oolong tea. For instance, gingerdiol and gingerol were detected in EN, whereas piperettine I was detected in PR. Therefore, it was inferred that among the three tea extracts, the additional compounds in PR contributed to good activities compared to oolong and EN. It is also important to highlight that the PR extract inhibited glucose uptake and consumption by adipocytes and skeletal muscles at concentrations of 500 and 100 μg/ml, respectively, as well as metformin activity (p < 0.05). Findings from this study support the antidiabetic potential of PR tea.
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Affiliation(s)
- Narawadee Rujanapun
- Medicinal Plant Innovation Center of Mae Fah Luang University, Mae Fah Luang University, Chiang Rai, Thailand
| | - Wuttichai Jaidee
- Medicinal Plant Innovation Center of Mae Fah Luang University, Mae Fah Luang University, Chiang Rai, Thailand
| | - Thidarat Duangyod
- Medicinal Plant Innovation Center of Mae Fah Luang University, Mae Fah Luang University, Chiang Rai, Thailand
- School of Integrative Medicine, Mae Fah Luang University, Chiang Rai, Thailand
| | - Pravaree Phuneerub
- Medicinal Plant Innovation Center of Mae Fah Luang University, Mae Fah Luang University, Chiang Rai, Thailand
- School of Integrative Medicine, Mae Fah Luang University, Chiang Rai, Thailand
| | - Napassawan Paojumroom
- Medicinal Plant Innovation Center of Mae Fah Luang University, Mae Fah Luang University, Chiang Rai, Thailand
| | - Tharakorn Maneerat
- Medicinal Plant Innovation Center of Mae Fah Luang University, Mae Fah Luang University, Chiang Rai, Thailand
- Center of Chemical Innovation for Sustainability, School of Science, Mae Fah Luang University, Chiang Rai, Thailand
| | | | - Salfarina Ramli
- Faculty of Pharmacy, Universiti Teknologi MARA Cawangan Selangor, Selangor, Malaysia
- Interactive Pharmacogenomics Institute (iPROMISE), Universiti Teknologi MARA Cawangan Selangor, Selangor, Malaysia
| | - Rawiwan Charoensup
- Medicinal Plant Innovation Center of Mae Fah Luang University, Mae Fah Luang University, Chiang Rai, Thailand
- School of Integrative Medicine, Mae Fah Luang University, Chiang Rai, Thailand
- *Correspondence: Rawiwan Charoensup,
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