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Liu T, Zhu C, Duan Z, Ma P, Ma X, Fan D. Network Pharmacological Analysis Combined with Experimental Verification to Explore the Effect of Ginseng Polypeptide on the Improvement of Diabetes Symptoms in db/db Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:18537-18551. [PMID: 39129180 DOI: 10.1021/acs.jafc.4c04949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/13/2024]
Abstract
Diabetes mellitus is a typical metabolic disease that has become a major threat to human health worldwide. Ginseng polypeptide (GP), a small molecule active substance isolated from ginseng, has shown positive hypoglycemic effects in preliminary studies. However, its mechanism in ameliorating multiorgan damage in db/db mice is unclear. In this study, we utilized network pharmacology, molecular docking, and animal experiments to explore the targets and biological mechanisms of GP to ameliorate multiorgan damage in T2DM. The results showed that GP improves T2DM by inhibiting inflammation and oxidative damage, thereby alleviating hyperglycemia, insulin resistance, and multiorgan damage in db/db mice. These effects are potentially mediated through the PI3K-Akt signaling pathway and the MAPK signaling pathway. This study establishes GP's efficacy in alleviating T2DM and provides a robust theoretical basis for the development of new drugs or functional foods for treating this disease.
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Affiliation(s)
- Tianzhu Liu
- Engineering Research Center of Western Resource Innovation Medicine Green Manufacturing, Ministry of Education, School of Chemical Engineering, Northwest University, Xi'an 710069, China
- Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi'an 710069, China
- Biotech. & Biomed. Research Institute, Northwest University, Xi'an 710069, China
| | - Chenhui Zhu
- Engineering Research Center of Western Resource Innovation Medicine Green Manufacturing, Ministry of Education, School of Chemical Engineering, Northwest University, Xi'an 710069, China
- Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi'an 710069, China
- Biotech. & Biomed. Research Institute, Northwest University, Xi'an 710069, China
| | - Zhiguang Duan
- Engineering Research Center of Western Resource Innovation Medicine Green Manufacturing, Ministry of Education, School of Chemical Engineering, Northwest University, Xi'an 710069, China
- Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi'an 710069, China
- Biotech. & Biomed. Research Institute, Northwest University, Xi'an 710069, China
| | - Pei Ma
- Engineering Research Center of Western Resource Innovation Medicine Green Manufacturing, Ministry of Education, School of Chemical Engineering, Northwest University, Xi'an 710069, China
- Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi'an 710069, China
- Biotech. & Biomed. Research Institute, Northwest University, Xi'an 710069, China
| | - Xiaoxuan Ma
- Engineering Research Center of Western Resource Innovation Medicine Green Manufacturing, Ministry of Education, School of Chemical Engineering, Northwest University, Xi'an 710069, China
- Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi'an 710069, China
- Biotech. & Biomed. Research Institute, Northwest University, Xi'an 710069, China
| | - Daidi Fan
- Engineering Research Center of Western Resource Innovation Medicine Green Manufacturing, Ministry of Education, School of Chemical Engineering, Northwest University, Xi'an 710069, China
- Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi'an 710069, China
- Biotech. & Biomed. Research Institute, Northwest University, Xi'an 710069, China
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Zhou X, Tian D, Zhou H, Dong R, Ma C, Ren L, Yang X, Wang Q, Chen N, Yang L, Tang X, Bi Y, Liu Y, Deng X, Wang B, Li Y. Effects of Different Fermentation Methods on Flavor Quality of Liupao Tea Using GC-Q-TOF-MS and Electronic Nose Analyses. Foods 2024; 13:2595. [PMID: 39200522 PMCID: PMC11353607 DOI: 10.3390/foods13162595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2024] [Revised: 08/15/2024] [Accepted: 08/16/2024] [Indexed: 09/02/2024] Open
Abstract
To further develop Liupao tea products and enhance their flavor, this study investigated the effects of different fermentation methods on the aroma quality of Liupao tea. The aroma quality of Liupao tea was comprehensively analyzed using HS-SPME in combination with GC-Q-TOF-MS, electronic nose, and sensory evaluations. Electronic nose detection showed that the aroma fingerprints of Liupao tea samples with different fermentation methods were different. Sulfides, alcohols, ketones, and methyls were the main aroma categories affecting the aroma of the four groups of Liupao tea samples. GC-Q-TOF-MS analysis revealed significant differences in the composition of aroma components among the four fermentation methods of Liupao tea (p < 0.05). Furthermore, the total amount of aroma compounds was found to be highest in the group subjected to hot fermentation combined with the inoculation of Monascus purpureus (DMl group). Based on the OPLS-DA model, candidate differential aroma components with VIP > 1 were identified, and characteristic aroma compounds were selected based on OAV > 10. The key characteristic aroma compounds shared by the four groups of samples were 1,2,3-Trimethoxybenzene with a stale aroma and nonanal with floral and fruity aromas. The best sensory evaluation results were obtained for the DMl group, and its key characteristic aroma compounds mainly included 1,2,3-Trimethoxybenzene, nonanal, and cedrol. The results of this study can guide the development of Liupao tea products and process optimization.
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Affiliation(s)
- Xiaohui Zhou
- College of Tea Science, Yunnan Agricultural University, Kunming 650500, China; (X.Z.); (H.Z.); (R.D.); (C.M.); (L.R.); (X.Y.); (Q.W.); (N.C.); (L.Y.); (X.T.); (Y.B.); (Y.L.); (X.D.)
| | - Di Tian
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650500, China;
| | - Hongjie Zhou
- College of Tea Science, Yunnan Agricultural University, Kunming 650500, China; (X.Z.); (H.Z.); (R.D.); (C.M.); (L.R.); (X.Y.); (Q.W.); (N.C.); (L.Y.); (X.T.); (Y.B.); (Y.L.); (X.D.)
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650500, China;
| | - Rui Dong
- College of Tea Science, Yunnan Agricultural University, Kunming 650500, China; (X.Z.); (H.Z.); (R.D.); (C.M.); (L.R.); (X.Y.); (Q.W.); (N.C.); (L.Y.); (X.T.); (Y.B.); (Y.L.); (X.D.)
| | - Chenyang Ma
- College of Tea Science, Yunnan Agricultural University, Kunming 650500, China; (X.Z.); (H.Z.); (R.D.); (C.M.); (L.R.); (X.Y.); (Q.W.); (N.C.); (L.Y.); (X.T.); (Y.B.); (Y.L.); (X.D.)
| | - Ling Ren
- College of Tea Science, Yunnan Agricultural University, Kunming 650500, China; (X.Z.); (H.Z.); (R.D.); (C.M.); (L.R.); (X.Y.); (Q.W.); (N.C.); (L.Y.); (X.T.); (Y.B.); (Y.L.); (X.D.)
| | - Xueyi Yang
- College of Tea Science, Yunnan Agricultural University, Kunming 650500, China; (X.Z.); (H.Z.); (R.D.); (C.M.); (L.R.); (X.Y.); (Q.W.); (N.C.); (L.Y.); (X.T.); (Y.B.); (Y.L.); (X.D.)
| | - Qingyi Wang
- College of Tea Science, Yunnan Agricultural University, Kunming 650500, China; (X.Z.); (H.Z.); (R.D.); (C.M.); (L.R.); (X.Y.); (Q.W.); (N.C.); (L.Y.); (X.T.); (Y.B.); (Y.L.); (X.D.)
| | - Ning Chen
- College of Tea Science, Yunnan Agricultural University, Kunming 650500, China; (X.Z.); (H.Z.); (R.D.); (C.M.); (L.R.); (X.Y.); (Q.W.); (N.C.); (L.Y.); (X.T.); (Y.B.); (Y.L.); (X.D.)
| | - Liubo Yang
- College of Tea Science, Yunnan Agricultural University, Kunming 650500, China; (X.Z.); (H.Z.); (R.D.); (C.M.); (L.R.); (X.Y.); (Q.W.); (N.C.); (L.Y.); (X.T.); (Y.B.); (Y.L.); (X.D.)
| | - Xuan Tang
- College of Tea Science, Yunnan Agricultural University, Kunming 650500, China; (X.Z.); (H.Z.); (R.D.); (C.M.); (L.R.); (X.Y.); (Q.W.); (N.C.); (L.Y.); (X.T.); (Y.B.); (Y.L.); (X.D.)
| | - Yixin Bi
- College of Tea Science, Yunnan Agricultural University, Kunming 650500, China; (X.Z.); (H.Z.); (R.D.); (C.M.); (L.R.); (X.Y.); (Q.W.); (N.C.); (L.Y.); (X.T.); (Y.B.); (Y.L.); (X.D.)
| | - Yapeng Liu
- College of Tea Science, Yunnan Agricultural University, Kunming 650500, China; (X.Z.); (H.Z.); (R.D.); (C.M.); (L.R.); (X.Y.); (Q.W.); (N.C.); (L.Y.); (X.T.); (Y.B.); (Y.L.); (X.D.)
| | - Xiujuan Deng
- College of Tea Science, Yunnan Agricultural University, Kunming 650500, China; (X.Z.); (H.Z.); (R.D.); (C.M.); (L.R.); (X.Y.); (Q.W.); (N.C.); (L.Y.); (X.T.); (Y.B.); (Y.L.); (X.D.)
- Yunnan Organic Tea Industry Intelligent Engineering Research Center, Yunnan Agricultural University, Kunming 650201, China
| | - Baijuan Wang
- College of Tea Science, Yunnan Agricultural University, Kunming 650500, China; (X.Z.); (H.Z.); (R.D.); (C.M.); (L.R.); (X.Y.); (Q.W.); (N.C.); (L.Y.); (X.T.); (Y.B.); (Y.L.); (X.D.)
- Yunnan Organic Tea Industry Intelligent Engineering Research Center, Yunnan Agricultural University, Kunming 650201, China
| | - Yali Li
- College of Tea Science, Yunnan Agricultural University, Kunming 650500, China; (X.Z.); (H.Z.); (R.D.); (C.M.); (L.R.); (X.Y.); (Q.W.); (N.C.); (L.Y.); (X.T.); (Y.B.); (Y.L.); (X.D.)
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Zhang S, Zhang S, Zhang Y, Wang H, Chen Y, Lu H. Activation of NRF2 by epiberberine improves oxidative stress and insulin resistance in T2DM mice and IR-HepG2 cells in an AMPK dependent manner. JOURNAL OF ETHNOPHARMACOLOGY 2024; 327:117931. [PMID: 38382657 DOI: 10.1016/j.jep.2024.117931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 01/22/2024] [Accepted: 02/16/2024] [Indexed: 02/23/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Phytochemical compounds offer a distinctive edge in diabetes management, attributed to their multifaceted target mechanisms and minimal toxicological profiles. Epiberberine (EPI), an alkaloid derived from plants of the Rhizoma Coptidis, has been reported to have antidiabetic effects. However, the underlying molecular mechanism of EPI are not fully elucidated. AIM OF THE STUDY This study explored the anti-diabetic effects of EPI and the role of the NRF2/AMPK signaling pathway in improving insulin resistance. MATERIALS AND METHODS We utilized two distinct models: in vivo, we employed mice with type 2 diabetes mellitus (T2DM) induced by high-fat diet (HFD) and streptozotocin (STZ) to conduct a range of assessments including measuring physical parameters, conducting biochemical analyses, examining histopathology, and performing Western blot tests. In parallel, in vitro experiments were carried out using insulin resistance (IR)-HepG2 cells, through which we conducted a CCK8 assay, glucose uptake tests, Western blot analyses, and flow cytometry studies. RESULTS In the EPI-treated group of T2DM mice, there was a significant reduction in hyperglycemia, IR, and hyperlipidemia, accompanied by beneficial changes in the liver and pancreas, as well as enhanced glucose uptake in IR-HepG2 cells. Herein, our finding also provided evidence that EPI could increase the expression of GLUT4 and activated the IRS-1/PI3K/AKT insulin signaling pathway to improve IR in vitro and in vivo. Moreover, EPI alleviated oxidative stress by enhancing SOD and GPX-px activity, decreasing reactive oxygen species (ROS) and malondialdehyde (MDA) content, and promoting nuclear factor (erythroid-derived 2)-like 2 (NRF2), total NRF2, NAD(P)H-quinone oxidoreductase (NQO1) and heme oxygenase-1 (HO-1) expression in the liver tissue of T2DM mice and IR-HepG2 cells. Furthermore, EPI decreased oxidative stress and improved IR, but these benefits were nullified by siNRF2 transfection. In particular, AMP-activated protein kinase (AMPK) deficiency by short-hairpin RNA (shRNA) partially reversed the effects of EPI on nuclear transcription, oxidative stress, and IR of NRF2 in IR-HepG2 cells. CONCLUSIONS Taken together, EPI activated NRF2-dependent AMPK cascade to protect T2DM from oxidative stress, thereby alleviating IR.
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Affiliation(s)
- Shunxiao Zhang
- Department of Endocrinology, Baoshan Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China; Department of Endocrinology, Shanghai Baoshan District Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, People's Republic of China.
| | - Sheng Zhang
- Department of Endocrinology, Baoshan Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China; Department of Endocrinology, Shanghai Baoshan District Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, People's Republic of China
| | - Yan Zhang
- Department of Endocrinology, Baoshan Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China; Department of Endocrinology, Shanghai Baoshan District Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, People's Republic of China
| | - Hua Wang
- Department of Endocrinology, Baoshan Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China; Department of Endocrinology, Shanghai Baoshan District Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, People's Republic of China
| | - Yue Chen
- Department of Endocrinology, Baoshan Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China; Department of Endocrinology, Shanghai Baoshan District Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, People's Republic of China.
| | - Hao Lu
- Department of Endocrinology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China.
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Lin SX, Yang C, Jiang RS, Wu C, Lang DQ, Wang YL, Li XY, Jiang CP, Liu Q, Shen CY. Flavonoid extracts of Citrus aurantium L. var. amara Engl. Promote browning of white adipose tissue in high-fat diet-induced mice. JOURNAL OF ETHNOPHARMACOLOGY 2024; 324:117749. [PMID: 38219880 DOI: 10.1016/j.jep.2024.117749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/26/2023] [Accepted: 01/09/2024] [Indexed: 01/16/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Obesity has become a public burden worldwide due to its booming incidence and various complications, and browning of white adipose tissue (WAT) is recognized as a hopeful strategy to combat it. Blossom of Citrus aurantium L. var. amara Engl. (CAVA) is a popular folk medicine and dietary supplement used for relieving dyspepsia, which is recorded in the Chinese Materia Medica. Our previous study showed that blossom of CAVA had anti-obesity potential, while its role in browning of WAT was still unclear. AIM OF THE STUDY This study aimed to characterize the constituents in flavonoids from blossom of CAVA (CAVAF) and to clarify the anti-obesity capacities especially the effects on browning of WAT. MATERIALS AND METHODS Gradient ethanol eluents from blossom of CAVA were obtained by AB-8 macroporous resin. 3T3-L1 cells and pancreatic lipase inhibition assay were employed to investigate the potential anti-obesity effects in vitro. HPLC and UPLC/MS assays were performed to characterize the chemical profiles of different eluents. Network pharmacology and molecular docking assays were used to reveal potential anti-obesity targets. Furthermore, high-fat diet (HFD)-induced mice were constructed to explore the anti-obesity actions and mechanisms in vivo. RESULTS 30% ethanol eluents with high flavonoid content and great inhibition on proliferation of 3T3-L1 preadipocytes and pancreatic lipase activity were regarded as CAVAF. 19 compounds were identified in CAVAF. Network pharmacology analysis demonstrated that AMPK and PPARα were potential targets for CAVAF in alleviating obesity. Animal studies demonstrated that CAVAF intervention significantly decreased the body weight, WAT weight, serum TG, TC and LDL-C levels in HFD-fed obese mice. HFD-induced insulin resistance and morphological changes in WAT and brown adipose tissue were also markedly attenuated by CAVAF treatment. CAVAF supplementation potently inhibited iWAT inflammation by regulating IL-6, IL-1β, TNF-α and IL-10 mRNA expression in iWAT of mice. Furthermore, the gene expression levels of thermogenic markers including Cyto C, ATP synthesis, Cidea, Cox8b and especially UCP1 in iWAT of mice were significantly up-regulated by CAVAF administration. CAVAF intervention also markedly increased the expression levels of PRDM16, PGC-1α, SIRT1, AMPK-α1, PPARα and PPARγ mRNA in iWAT of mice. CONCLUSION CAVAF treatment significantly promoted browning of WAT in HFD-fed mice. These results suggested that flavonoid extracts from blossom of CAVA were probably promising candidates for the treatment of obesity.
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Affiliation(s)
- Song-Xia Lin
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, PR China
| | - Chun Yang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, PR China
| | - Ru-Shan Jiang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, PR China
| | - Chao Wu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, PR China
| | - Deng-Qin Lang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, PR China
| | - Ya-Li Wang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, PR China
| | - Xiao-Yi Li
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, PR China
| | - Cui-Ping Jiang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, PR China.
| | - Qiang Liu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, PR China
| | - Chun-Yan Shen
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, Southern Medical University, Guangzhou 510515, PR China; Guangdong Provincial Engineering Laboratory of Chinese Medicine Preparation Technology, Guangzhou 510515, PR China.
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Zeng T, Tang X, Bai X, Xiong H. FGF19 Promotes the Proliferation and Insulin Secretion from Human Pancreatic β Cells Via the IRS1/GLUT4 Pathway. Exp Clin Endocrinol Diabetes 2024; 132:152-161. [PMID: 38513652 DOI: 10.1055/a-2250-7830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
BACKGROUND Type 2 diabetes mellitus (T2DM) is a commonly observed complication associated with obesity. The effect of fibroblast growth factor 19 (FGF19), a promising therapeutic agent for metabolic disorders, on pancreatic β cells in obesity-associated T2DM remains poorly understood. METHODS Human pancreatic β cells were cultured with high glucose (HG) and palmitic acid (PA), followed by treatment with FGF19. The cell proliferation, apoptosis, and insulin secretion were evaluated by CCK-8, qRT-PCR, ELISA, flow cytometry, and western blotting. The expression of the insulin receptor substrate (IRS)/glucose transporter (GLUT) pathway was evaluated. The interaction between FGF19 and IRS1 was predicted using the STRING database and verified by co-immunoprecipitation and immunofluorescence. The regulatory effects of the IRS1/GLUT4 pathway on human pancreatic β cells were assessed by overexpressing IRS1 and silencing IRS1 and GLUT4. RESULTS HG+PA treatment reduced the human pancreatic β cell proliferation and insulin secretion and promoted cell apoptosis. However, FGF19 treatment restored these alterations and significantly increased the expressions of IRS1, GLUT1, and GLUT4 in the IRS/GLUT pathway. Furthermore, FGF19 and IRS1 were found to interact. IRS1 overexpression partially promoted the proliferation of pancreatic β cells and insulin secretion through GLUT4. Additionally, the silencing of IRS1 or GLUT4 attenuated the therapeutic effects of FGF19. CONCLUSION In conclusion, FGF19 partly promoted the proliferation and insulin secretion of human pancreatic β cells and inhibited apoptosis by upregulating the IRS1/GLUT4 pathway. These findings establish a theoretical framework for the clinical utilization of FGF19 in the treatment of obesity-associated T2DM.
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Affiliation(s)
- Ting Zeng
- Department of Endocrinology, Longhua District People's Hospital of Shenzhen, Shenzhen, China
| | - Xi Tang
- Department of Cardiology, Longhua District People's Hospital of Shenzhen, Shenzhen, China
| | - Xiaosu Bai
- Department of Endocrinology, Longhua District People's Hospital of Shenzhen, Shenzhen, China
| | - Haiyan Xiong
- Department of Nursing, Longhua District People's Hospital of Shenzhen, Shenzhen, China
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Guo S, Shi Y, Xu A, Wang Y, Xu P. Liubao tea extract ameliorates ovalbumin-induced allergic asthma by regulating gut microbiota in mice. Food Funct 2023; 14:10605-10616. [PMID: 37961950 DOI: 10.1039/d3fo03470d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Asthma, a chronic airway inflammatory disease, has a complicated pathogenesis and limited therapeutic treatment. Evidence shows that the intestinal microbiota exhibits crucial functional interaction with asthma syndrome. Liubao tea (LBT), a type of postfermented tea in China, positively modulates gut microbiota. However, the potential benefits of LBT extract (LBTE) for allergic asthma are still not understood. Herein, the anti-inflammatory effects of LBTE and its modulation of the gut microbiota of asthmatic mice induced by ovalbumin were explored. The results demonstrate that LBTE significantly inhibited airway hyper-responsiveness and restrained the proliferation of proinflammatory cytokines and inflammatory cells associated with allergic asthma. Additionally, LBTE suppressed inflammatory infiltration, mucus secretion, and excessive goblet cell production by downregulating the gene expression of inflammatory indicators. Interestingly, fecal microbiota transplantation results further implied that the modulation of LBTE on gut microbiota played an essential role in alleviating airway inflammatory symptoms of allergic asthma.
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Affiliation(s)
- Shasha Guo
- Institute of Tea Science, Zhejiang University, Hangzhou 310058, China.
| | - Yuxuan Shi
- Institute of Tea Science, Zhejiang University, Hangzhou 310058, China.
| | - Anan Xu
- Institute of Tea Science, Zhejiang University, Hangzhou 310058, China.
| | - Yuefei Wang
- Institute of Tea Science, Zhejiang University, Hangzhou 310058, China.
| | - Ping Xu
- Institute of Tea Science, Zhejiang University, Hangzhou 310058, China.
- Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture, Hangzhou 310058, China
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Feng X, Chen M, Song H, Ma S, Ou C, Li Z, Hu H, Yang Y, Zhou S, Pan Y, Fan F, Gong S, Chen P, Chu Q. A systemic review on Liubao tea: A time-honored dark tea with distinctive raw materials, process techniques, chemical profiles, and biological activities. Compr Rev Food Sci Food Saf 2023; 22:5063-5085. [PMID: 37850384 DOI: 10.1111/1541-4337.13254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 09/19/2023] [Accepted: 09/27/2023] [Indexed: 10/19/2023]
Abstract
Liubao tea (LBT) is a unique microbial-fermented tea that boasts a long consumption history spanning 1500 years. Through a specific post-fermentation process, LBT crafted from local tea cultivars in Liubao town Guangxi acquires four distinct traits, namely, vibrant redness, thickness, aging aroma, and purity. The intricate transformations that occur during post-fermentation involve oxidation, degradation, methylation, glycosylation, and so forth, laying the substance foundation for the distinctive sensory traits. Additionally, LBT contains multitudinous bioactive compounds, such as ellagic acid, catechins, polysaccharides, and theabrownins, which contributes to the diverse modulation abilities on oxidative stress, metabolic syndromes, organic damage, and microbiota flora. However, research on LBT is currently scattered, and there is an urgent need for a systematical recapitulation of the manufacturing process, the dominant microorganisms during fermentation, the dynamic chemical alterations, the sensory traits, and the underlying health benefits. In this review, current research progresses on the peculiar tea varieties, the traditional and modern process technologies, the substance basis of sensory traits, and the latent bioactivities of LBT were comprehensively summarized. Furthermore, the present challenges and deficiencies that hinder the development of LBT, and the possible orientations and future perspectives were thoroughly discussed. By far, the productivity and quality of LBT remain restricted due to the reliance on labor and experience, as well as the incomplete understanding of the intricate interactions and underlying mechanisms involved in processing, organoleptic quality, and bioactivities. Consequently, further research is urgently warranted to address these gaps.
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Affiliation(s)
- Xinyu Feng
- Tea Research Institute, Zhejiang University, Hangzhou, P. R. China
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, P. R. China
| | - Ming Chen
- Tea Research Institute, Zhejiang University, Hangzhou, P. R. China
| | - Haizhao Song
- College of Food Science and Engineering, Nanjing University of Finance & Economics, Nanjing, P. R. China
| | - Shicheng Ma
- Wuzhou Liubao Tea Research Association, Wuzhou, P. R. China
| | - Cansong Ou
- Wuzhou Tea Industry Development Service Center, Wuzhou, P. R. China
| | - Zeqing Li
- College of Food and Pharmaceutical Engineering, Wuzhou University, Wuzhou, P. R. China
| | - Hao Hu
- College of Agriculture and Food Science, Zhejiang A&F University, Hangzhou, P. R. China
| | - Yunyun Yang
- College of standardization, China Jiliang University, Hangzhou, P. R. China
| | - Su Zhou
- Tea Research Institute, Zhejiang University, Hangzhou, P. R. China
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, P. R. China
| | - Yani Pan
- Tea Research Institute, Zhejiang University, Hangzhou, P. R. China
| | - Fangyuan Fan
- Tea Research Institute, Zhejiang University, Hangzhou, P. R. China
| | - Shuying Gong
- Tea Research Institute, Zhejiang University, Hangzhou, P. R. China
| | - Ping Chen
- Tea Research Institute, Zhejiang University, Hangzhou, P. R. China
| | - Qiang Chu
- Tea Research Institute, Zhejiang University, Hangzhou, P. R. China
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Zhou D, Liu X, Lan L, Yu W, Qiu R, Wu J, Teng C, Huang L, Yu C, Zeng Y. Protective effects of Liupao tea against high-fat diet/cold exposure-induced irritable bowel syndrome in rats. Heliyon 2023; 9:e16613. [PMID: 37303551 PMCID: PMC10248097 DOI: 10.1016/j.heliyon.2023.e16613] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 05/17/2023] [Accepted: 05/22/2023] [Indexed: 06/13/2023] Open
Abstract
Liupao tea as a type of dark tea can relieve irritable bowel syndrome by regulating gut microbiota, but the mechanism has not been fully explained. An ultra-high performance liquid chromatography along with quadrupole time of flight tandem mass spectrometry was used to analyze the phytochemicals in Liupao tea. Then, we explored the effects of Liupao tea against IBS. From the results of chemical analysis, we identified catechins, polyphenols, amino acids, caffeine, polysaccharides and other components in Liupao tea. The open-field test, gastrointestinal function-related indexes, histochemical assays, measurements of cytokine and aquaporin 3 (AQP3), and determination of serum metabolites were utilized to monitor the physiological consequences of Liupao tea administration in rats with irritable bowel syndrome. The results showed that Liupao tea had a significant protective effect on irritable bowel syndrome. Liupao tea increased locomotive velocity while reducing interleukin-6, interleukin-1β, and tumor necrosis factor-α levels, as well as gastrointestinal injury. Moreover, Liupao tea increased the AQP3 levels of renal tissues but reduced the AQP3 levels of gastrointestinal tissues. Liupao tea reduced the Firmicutes/Bacteroides ratio and significantly reconstructed the microbial pattern. Liupao tea relieved irritable bowel syndrome by repairing gastrointestinal dysfunction, regulating the secretion of pro-inflammatory cytokines, modulating water metabolism, and restoring microbial homeostasis.
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Affiliation(s)
- Danshui Zhou
- School of Traditional Materia Medica, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Xiaotong Liu
- School of Traditional Materia Medica, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Lunli Lan
- College of Pharmacy, Guilin Medical University, Guilin, Guangxi, China
| | - Wenxin Yu
- School of Traditional Materia Medica, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Ruijin Qiu
- Wuzhou Institute of Agricultural Sciences, Wuzhou, Guangxi, China
| | - Jianhua Wu
- Wuzhou Institute of Agricultural Sciences, Wuzhou, Guangxi, China
| | - Cuiqin Teng
- Wuzhou Institute of Agricultural Sciences, Wuzhou, Guangxi, China
| | - Liyun Huang
- Wuzhou Institute of Agricultural Sciences, Wuzhou, Guangxi, China
| | - Cuiping Yu
- Wuzhou Institute of Agricultural Sciences, Wuzhou, Guangxi, China
| | - Yu Zeng
- School of Traditional Materia Medica, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
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