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Xie L, Yu D, Li Y, Ju H, Chen J, Hu L, Yu L. Characterization, Hypoglycemic Activity, and Antioxidant Activity of Methanol Extracts From Amomum tsao-ko: in vitro and in vivo Studies. Front Nutr 2022; 9:869749. [PMID: 35903449 PMCID: PMC9315379 DOI: 10.3389/fnut.2022.869749] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 06/13/2022] [Indexed: 12/23/2022] Open
Abstract
The dried fruit of Amomum tsao-ko is well-known as a spice as well as a Chinese traditional herb. This study aimed to identify the bioactive constituents in the powder of methanol extract from Amomum tsao-ko (PMEAT) and to evaluate the hypoglycemic and antioxidant effects of PMEAT, in vitro and in vivo. We identified 36 phytochemicals in PMEAT by employing HPLC-MS/MS. PMEAT solution was found to have potent α-glucosidase-inhibiting activity (IC50, 0.145 mg/mL) in vitro, twice as strong as that of acarbose (IC50, 0.273 mg/mL). To investigate the hypoglycemic activity of PMEAT in vivo, we studied the impact of low-dose PMEAT (the addition of 100 mg/kg PMEAT to the mice diet) and high-dose PMEAT (200 mg/kg PMEAT addition) treatments in STZ-induced diabetic mice. After 6 weeks of intervention, significantly decreased fasting blood glucose (FBG) (p < 0.05), significantly decreased area under the curve (AUC) of the oral glucose tolerance test (p < 0.05), significantly decreased HOMA-IR (p < 0.05), and significantly increased HOMA-β (p < 0.05) were observed in the high-dose PMEAT group. Moreover, we performed an antioxidant activity experiment in vitro. The results showed that PMEAT had a strong ability to scavenge DPPH (IC50, 0.044 mg/mL) as well as ABTS free radicals (IC50, 0.040 mg/mL). In an animal experiment conducted on oxidative damage mice model which was induced by D-glucose and a high-fat diet, we observed significantly increased dismutase (SOD) (p < 0.01), glutathione (GSH) (p < 0.01), and glutathione peroxidase (GSH-Px) (p < 0.01) and significantly reduced malondialdehyde (MDA) and 8-ISO-prostaglandin-PGF2α (8-ISO-PGF2α), after treatment with PMEAT for 90 days. In conclusion, this study reveals the therapeutic potential of Amomum tsao-ko for the treatment of diabetes and helps us discover new antioxidant candidates from natural sources.
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Affiliation(s)
- Libin Xie
- Shijiazhuang Food Engineering Technology Research Center, School of Chemical Engineering, Shijiazhuang University, Shijiazhuang, China
| | - Dan Yu
- Department of Nutrition, Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yanan Li
- Shijiazhuang Food Engineering Technology Research Center, School of Chemical Engineering, Shijiazhuang University, Shijiazhuang, China
| | - Huidong Ju
- Shijiazhuang Food Engineering Technology Research Center, School of Chemical Engineering, Shijiazhuang University, Shijiazhuang, China
| | - Jia Chen
- Shijiazhuang Food Engineering Technology Research Center, School of Chemical Engineering, Shijiazhuang University, Shijiazhuang, China
| | - Lianxia Hu
- Shijiazhuang Food Engineering Technology Research Center, School of Chemical Engineering, Shijiazhuang University, Shijiazhuang, China
| | - Longquan Yu
- Shijiazhuang Food Engineering Technology Research Center, School of Chemical Engineering, Shijiazhuang University, Shijiazhuang, China
- *Correspondence: Longquan Yu
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Sun F, Yan C, Lv Y, Pu Z, Liao Z, Guo W, Dai M. Genome Sequencing of Amomum tsao-ko Provides Novel Insight Into Its Volatile Component Biosynthesis. Front Plant Sci 2022; 13:904178. [PMID: 35720564 PMCID: PMC9198571 DOI: 10.3389/fpls.2022.904178] [Citation(s) in RCA: 1] [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] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 05/09/2022] [Indexed: 06/15/2023]
Abstract
As an important economic and medicinal crop, Amomum tsao-ko is rich in volatile oils and widely used in food additives, essential oils, and traditional Chinese medicine. However, the lack of the genome remains a limiting factor for understanding its medicinal properties at the molecular level. Here, based on 288.72 Gb of PacBio long reads and 105.45 Gb of Illumina paired-end short reads, we assembled a draft genome for A. tsao-ko (2.70 Gb in size, contig N50 of 2.45 Mb). Approximately 90.07% of the predicted genes were annotated in public databases. Based on comparative genomic analysis, genes involved in secondary metabolite biosynthesis, flavonoid metabolism, and terpenoid biosynthesis showed significant expansion. Notably, the DXS, GGPPS, and CYP450 genes, which participate in rate-limiting steps for terpenoid backbone biosynthesis and modification, may form the genetic basis for essential oil formation in A. tsao-ko. The assembled A. tsao-ko draft genome provides a valuable genetic resource for understanding the unique features of this plant and for further evolutionary and agronomic studies of Zingiberaceae species.
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Affiliation(s)
- Fenghui Sun
- School of Laboratory Medicine, Chengdu Medical College, Chengdu, China
| | - Chaochao Yan
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Yunyun Lv
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
- College of Life Science, Neijiang Normal University, Neijiang, China
| | - Zhonghui Pu
- School of Laboratory Medicine, Chengdu Medical College, Chengdu, China
- Sichuan Provincial Engineering Laboratory for Prevention and Control Technology of Veterinary Drug Residue in Animal-Origin Food, Chengdu Medical College, Chengdu, China
| | - Zedong Liao
- School of Laboratory Medicine, Chengdu Medical College, Chengdu, China
| | - Wei Guo
- School of Laboratory Medicine, Chengdu Medical College, Chengdu, China
- Sichuan Provincial Engineering Laboratory for Prevention and Control Technology of Veterinary Drug Residue in Animal-Origin Food, Chengdu Medical College, Chengdu, China
| | - Min Dai
- School of Laboratory Medicine, Chengdu Medical College, Chengdu, China
- Sichuan Provincial Engineering Laboratory for Prevention and Control Technology of Veterinary Drug Residue in Animal-Origin Food, Chengdu Medical College, Chengdu, China
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Affiliation(s)
- Xiang Shi
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, P. R. China
| | - Yu Deng
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, P. R. China
| | - Nicole C. Kurtz
- Department of Chemistry and Biochemistry, Miami University, Oxford, OH, USA
| | - Yue Sun
- Anhui Engineering Laboratory for Agro-products Processing, School of Tea & Food Science, International Joint Laboratory on Tea Chemistry and Health Effects, Anhui Agricultural University, Hefei, China
| | - Mingxing Xue
- Jinan Mingke Phytoochemicals Ltd, Jinan, P. R. China
| | - Xian Wu
- Department of Kinesiology, Nutrition, and Health, Miami University, Oxford, OH, USA
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Liu L, Zhao Y, Ming J, Chen J, Zhao G, Chen ZY, Wang Y, Lei L. Polyphenol extract and essential oil of Amomum tsao-ko equally alleviate hypercholesterolemia and modulate gut microbiota. Food Funct 2021; 12:12008-12021. [PMID: 34755750 DOI: 10.1039/d1fo03082e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
This study explored the effects of polyphenol extract (TKP) and essential oil (TKO) from Amomum tsao-ko Crevost et Lemaire (tsao-ko) on plasma total cholesterol and gut microbiota. Four groups of hamsters (n = 8 each) were fed one of four diets, respectively, namely a high-cholesterol diet (HCD) containing 0.1% cholesterol, a HCD containing 0.5% cholestyramine (PCD), a HCD with daily oral administration of 1000 mg per kg body weight TKP, and a HCD with daily oral administration of 200 mg per kg body weight TKO for 6 weeks. TKP and TKO equally lowered plasma total cholesterol (TC) by 13-18% via increasing the fecal elimination of total acidic sterols by 50-191%. This might be due to up-regulation of liver cholesterol 7α-hydroxylase (CYP7A1) at both transcriptional and translational levels. At a family level, TKP and TKO diets favorably modified the relative abundance of Ruminococcaceae, Erysipelotrichaceae, and Desulfovibrionaceae associated with acidic sterols and CYP7A1. It was therefore concluded that TKP and TKO were equally effective in alleviating hypercholesterolemia in hamsters via the interaction between gut microbiota and bile acid metabolism.
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Affiliation(s)
- Lijun Liu
- College of Food Science, Southwest University, Chongqing, People's Republic of China.
| | - Yimin Zhao
- School of Life Sciences, The Chinese University of Hong Kong, Shatin NT, Hong Kong, China.
| | - Jian Ming
- College of Food Science, Southwest University, Chongqing, People's Republic of China.
| | - Jia Chen
- College of Food Science, Southwest University, Chongqing, People's Republic of China.
| | - Guohua Zhao
- College of Food Science, Southwest University, Chongqing, People's Republic of China.
| | - Zhen-Yu Chen
- School of Life Sciences, The Chinese University of Hong Kong, Shatin NT, Hong Kong, China.
| | - Yujie Wang
- Department of Chemistry, College of Resource and Environment, Baoshan University, Baoshan 678000, P. R. China.
| | - Lin Lei
- College of Food Science, Southwest University, Chongqing, People's Republic of China.
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