1
|
Li Y, Sun M, Tian X, Bao T, Yu Q, Ma NL, Gan R, Cheang WS, Wu X. Gymnemic acid alleviates gut barrier disruption and lipid dysmetabolism via regulating gut microbiota in HFD hamsters. J Nutr Biochem 2024; 133:109709. [PMID: 39053860 DOI: 10.1016/j.jnutbio.2024.109709] [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: 01/23/2024] [Revised: 07/09/2024] [Accepted: 07/22/2024] [Indexed: 07/27/2024]
Abstract
Gut microbiota dysbiosis and gut barrier disruption are key events associated with high-fat diet (HFD)-induced systemic metabolic disorders. Gymnemic acid (GA) has been reported to have an important role in alleviating HFD-induced disorders of glycolipid metabolism, but its regulatory role in HFD-induced disorders of the gut microbiota and gut barrier function has not been elucidated. Here we showed that GA intervention in HFD-induced hamsters increased the relative abundance of short-chain fatty acid (SCFA)-producing microbes including Lactobacillus (P<.05) and Lachnoclostridium (P<.01) in the gut, and reduced the relative abundance of lipopolysaccharide (LPS)-producing microbes including Enterococcus (P<.05) and Bacteroides (P<.05), subsequently improving HFD-induced intestinal barrier dysfunction and systemic inflammation. Specifically, GA intervention reduced mRNA expression of inflammatory cytokines, including IL-1β, IL-6, and TNF-α (P<.01), increased mRNA expression of antioxidant-related genes, including Nfe2l2, Ho-1, and Nqo1 (P<.01), and increased mRNA expression of intestinal tight junction proteins, including Occludin and Claudin-1 (P<.01), thereby improving gut barrier function of HFD hamsters. This ameliorative effect of GA on the gut of HFD hamsters may further promote lipid metabolic balance in liver and adipose tissue by regulating the Toll-like receptor 4 (TLR4)-nuclear factor-κB (NF-κB) signaling pathway. Taken together, these results systematically revealed the important role of GA in regulating HFD-induced gut microbiota disturbance and gut barrier function impairment, providing a potential clinical theoretical basis for targeted treatment of HFD-induced microbiota dysbiosis.
Collapse
Affiliation(s)
- Yumeng Li
- Chinese Academy of Sciences, Tianjin Institute of Industrial Biotechnology, Tianjin, China; TIB-UM Joint Laboratory of Synthetic Biology for Traditional Chinese Medicine, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, China
| | - Mingzhe Sun
- Air Force Medical Center of People's Liberation Army, Beijing, China; College of food science & nutritional engineering, China Agricultural University, Beijing, China
| | - Xutong Tian
- Chinese Academy of Sciences, Tianjin Institute of Industrial Biotechnology, Tianjin, China
| | - Tongtong Bao
- Chinese Academy of Sciences, Tianjin Institute of Industrial Biotechnology, Tianjin, China
| | - Qian Yu
- Chinese Academy of Sciences, Tianjin Institute of Industrial Biotechnology, Tianjin, China
| | - Nyuk Ling Ma
- BIOSES Research Interest Group, Faculty of Science & Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia; Center for Global Health Research (CGHR), Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, India
| | - Renyou Gan
- Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore; Department of Food Science and Nutrition, Faculty of Science, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
| | - Wai San Cheang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau SAR, China; TIB-UM Joint Laboratory of Synthetic Biology for Traditional Chinese Medicine, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, China
| | - Xin Wu
- Chinese Academy of Sciences, Tianjin Institute of Industrial Biotechnology, Tianjin, China; TIB-UM Joint Laboratory of Synthetic Biology for Traditional Chinese Medicine, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, China.
| |
Collapse
|
2
|
Buccato DG, Ullah H, De Lellis LF, Morone MV, Larsen DS, Di Minno A, Cordara M, Piccinocchi R, Baldi A, Greco A, Santonastaso S, Sacchi R, Daglia M. Efficacy and Tolerability of a Food Supplement Based on Zea mays L., Gymnema sylvestre (Retz.) R.br.ex Sm, Zinc and Chromium for the Maintenance of Normal Carbohydrate Metabolism: A Monocentric, Randomized, Double-Blind, Placebo-Controlled Clinical Trial. Nutrients 2024; 16:2459. [PMID: 39125340 PMCID: PMC11314272 DOI: 10.3390/nu16152459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2024] [Revised: 07/24/2024] [Accepted: 07/25/2024] [Indexed: 08/12/2024] Open
Abstract
A study on 81 individuals (18-75 years old) with mildly impaired fasting blood glucose (FBG) concentrations (98-125 mg/dL) was undertaken to investigate the tolerability of a food supplement (FS) based on Zea mays and Gymnema sylvestre extracts, zinc, and chromium and its efficacy on glucose and lipid metabolism. The subjects were randomized into three groups (27 in each group) and supplemented with one or two tablet(s)/day of FS (groups 1 and 2, respectively), or two tablets/day of placebo (group 3). Blood sampling was carried out at baseline (t0) and after a 3-month treatment (t1), and biochemical parameters associated with glucose and lipid metabolism and kidney and liver toxicity were evaluated. Compared to the placebo, FBG and glycated haemoglobin (HbA1c) were significantly (p < 0.001) reduced in group 1 subjects. In contrast, at the doses of one and two tablet(s)/day, the FS exerted no effect on the other parameters examined. We conclude that in subjects with slightly impaired FBG, ingestion of a FS based on Z. mays and G. sylvestre extracts, zinc, and chromium over 3 months lowers FBG and modulates glucose homeostasis by improving glucose metabolism. These beneficial effects occur in the absence of biochemical evidence of kidney and liver toxicity.
Collapse
Affiliation(s)
- Daniele Giuseppe Buccato
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131 Naples, Italy; (D.G.B.); (H.U.); (L.F.D.L.); (A.B.); (M.D.)
| | - Hammad Ullah
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131 Naples, Italy; (D.G.B.); (H.U.); (L.F.D.L.); (A.B.); (M.D.)
| | - Lorenza Francesca De Lellis
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131 Naples, Italy; (D.G.B.); (H.U.); (L.F.D.L.); (A.B.); (M.D.)
| | - Maria Vittoria Morone
- Department of Experimental Medicine, Section of Microbiology and Clinical Microbiology, University of Campania “L. Vanvitelli”, 80138 Naples, Italy;
| | - Danaé S. Larsen
- School of Chemical Sciences, The University of Auckland, Auckland 1010, New Zealand;
| | - Alessandro Di Minno
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131 Naples, Italy; (D.G.B.); (H.U.); (L.F.D.L.); (A.B.); (M.D.)
- CEINGE-Biotecnologie Avanzate, Via Gaetano Salvatore 486, 80145 Naples, Italy
| | - Marcello Cordara
- School of Medicine, University of Milano-Bicocca, 20126 Milan, Italy;
| | - Roberto Piccinocchi
- Level 1 Medical Director Anaesthesia and Resuscitation A. U. O. Luigi Vanvitelli, Via Santa Maria di Costantinopoli, 80138 Naples, Italy;
| | - Alessandra Baldi
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131 Naples, Italy; (D.G.B.); (H.U.); (L.F.D.L.); (A.B.); (M.D.)
| | - Agostino Greco
- A.S.L. Caserta, Via P. Harris, 81100 Caserta, Italy; (A.G.); (S.S.)
| | | | - Roberto Sacchi
- Applied Statistic Unit, Department of Earth and Environmental Sciences, University of Pavia, Viale Taramelli 24, 27100 Pavia, Italy;
| | - Maria Daglia
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131 Naples, Italy; (D.G.B.); (H.U.); (L.F.D.L.); (A.B.); (M.D.)
- International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang 212013, China
| |
Collapse
|
3
|
Tian X, Rong Y, Luo J, Zhao Y, Zhou T, Zeng Y, Hong K, Jiang L, Yang J, Li Y, Wu X. Microbial creation of β-Nicotinamide mononucleotide and its regulation of lipid metabolism in the liver of high-fat diet mice. Cell Biochem Funct 2024; 42:e4087. [PMID: 38953407 DOI: 10.1002/cbf.4087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 06/19/2024] [Accepted: 06/24/2024] [Indexed: 07/04/2024]
Abstract
β-Nicotinamide mononucleotide (NMN) is a biologically active nucleotide that regulates the physiological metabolism of the body by rapidly increasing nicotinamide adenine dinucleotide (NAD+). To determine the safety and biological activity of NMN resources, we constructed a recombinant strain of P. pastoris that heterologously expresses nicotinamide-phosphate ribosyltransferase (NAMPT), and subsequently catalyzed and purified the expressed product to obtain NMN. Consequently, this study established a high-fat diet (HFD) obese model to investigate the lipid-lowering activity of NMN. The findings showed that NMN supplementation directly increased the NAD+ levels, and reduced HFD-induced liver injury and lipid deposition. NMN treatment significantly decreased total cholesterol (TC) and triglyceride (TG) in serum and liver, as well as alanine aminotransferase (ALT) and insulin levels in serum (p < .05 or p < .01). In conclusion, this study combined synthetic biology with nutritional evaluation to confirm that P. pastoris-generated NMN modulated lipid metabolism in HFD mice, offering a theoretical framework and evidence for the application of microbially created NMN.
Collapse
Affiliation(s)
- Xutong Tian
- School of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, China
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, National center of technology innovation for synthetic biology, Tianjin, China
| | - Youyan Rong
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, National center of technology innovation for synthetic biology, Tianjin, China
- Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy Husbandry, College of Animal Science and Veterinary Medicine, Tianjin Agricultural University, Tianjin, China
| | - Juyue Luo
- School of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, China
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, National center of technology innovation for synthetic biology, Tianjin, China
| | - Yaping Zhao
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, National center of technology innovation for synthetic biology, Tianjin, China
| | - Tiantian Zhou
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Yu Zeng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Kai Hong
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, National center of technology innovation for synthetic biology, Tianjin, China
| | - Liang Jiang
- 5ERA Biotechnology (Shenzhen) Co., Ltd, Shenzhen, China
| | - Jianying Yang
- School of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, China
| | - Yumeng Li
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, National center of technology innovation for synthetic biology, Tianjin, China
| | - Xin Wu
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, National center of technology innovation for synthetic biology, Tianjin, China
| |
Collapse
|
4
|
Li Y, Tian X, Yu Q, Bao T, Dai C, Jiang L, Niu K, Yang J, Wang S, Wu X. Alleviation of hepatic insulin resistance and steatosis with NMN via improving endoplasmic reticulum-Mitochondria miscommunication in the liver of HFD mice. Biomed Pharmacother 2024; 175:116682. [PMID: 38703507 DOI: 10.1016/j.biopha.2024.116682] [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: 01/09/2024] [Revised: 04/17/2024] [Accepted: 04/29/2024] [Indexed: 05/06/2024] Open
Abstract
The interaction between endoplasmic reticulum (ER) and mitochondria has been shown to play a key role in hepatic steatosis during chronic obesity. β-nicotinamide mononucleotide (NMN) has been reported to regulate obesity, however, its molecular mechanism at the subcellular level remains unclear. Here, NMN improved liver steatosis and insulin resistance in chronic high-fat diet (HFD) mice. RNA-seq showed that compared with the liver of HFD mice, NMN intervention enhanced fat digestion and absorption and stimulated the cholesterol metabolism signaling pathways, while impaired insulin resistance and the fatty acid biosynthesis signaling pathways. Mechanistically, NMN ameliorated mitochondrial dysfunction and ER oxidative stress in the liver of HFD mice by increasing hepatic nicotinamide adenine dinucleotide (NAD+) (P < 0.01) levels. This effect increased the contact sites (mitochondria-associated membranes [MAMs]) between ER and mitochondria, thereby promoting intracellular ATP (P < 0.05) production and mitigating lipid metabolic disturbances in the liver of HFD mice. Taken together, this study provided a theoretical basis for restoring metabolic dynamic equilibrium in the liver of HFD mice by increasing MAMs via the nutritional strategy of NMN supplementation.
Collapse
Affiliation(s)
- Yumeng Li
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, China
| | - Xutong Tian
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, China; The First Affiliated Hospital, College of Clinical Medicine, Medical College of Henan University of Science and Technology, Luoyang, China
| | - Qian Yu
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, China
| | - Tongtong Bao
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, China
| | - Chao Dai
- CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China
| | - Liang Jiang
- ERA Biotechnology (Shenzhen) Co., Ltd, Shenzhen 518115, China
| | - Kaimin Niu
- Institute of Biological Resources, Jiangxi Academy of Sciences, Nanchang, China
| | - Jianying Yang
- The First Affiliated Hospital, College of Clinical Medicine, Medical College of Henan University of Science and Technology, Luoyang, China
| | - Shujin Wang
- Institute of Life Sciences, Chongqing Medical University, Chongqing, China
| | - Xin Wu
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, China; CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China.
| |
Collapse
|
5
|
Cao S, Liu M, Han Y, Li S, Zhu X, Li D, Shi Y, Liu B. Effects of Saponins on Lipid Metabolism: The Gut-Liver Axis Plays a Key Role. Nutrients 2024; 16:1514. [PMID: 38794751 PMCID: PMC11124185 DOI: 10.3390/nu16101514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 04/27/2024] [Accepted: 05/07/2024] [Indexed: 05/26/2024] Open
Abstract
Unhealthy lifestyles (high-fat diet, smoking, alcohol consumption, too little exercise, etc.) in the current society are prone to cause lipid metabolism disorders affecting the health of the organism and inducing the occurrence of diseases. Saponins, as biologically active substances present in plants, have lipid-lowering, inflammation-reducing, and anti-atherosclerotic effects. Saponins are thought to be involved in the regulation of lipid metabolism in the body; it suppresses the appetite and, thus, reduces energy intake by modulating pro-opiomelanocortin/Cocaine amphetamine regulated transcript (POMC/CART) neurons and neuropeptide Y/agouti-related peptide (NPY/AGRP) neurons in the hypothalamus, the appetite control center. Saponins directly activate the AMP-activated protein kinase (AMPK) signaling pathway and related transcriptional regulators such as peroxisome-proliferator-activated-receptors (PPAR), CCAAT/enhancer-binding proteins (C/EBP), and sterol-regulatory element binding proteins (SREBP) increase fatty acid oxidation and inhibit lipid synthesis. It also modulates gut-liver interactions to improve lipid metabolism by regulating gut microbes and their metabolites and derivatives-short-chain fatty acids (SCFAs), bile acids (BAs), trimethylamine (TMA), lipopolysaccharide (LPS), et al. This paper reviews the positive effects of different saponins on lipid metabolism disorders, suggesting that the gut-liver axis plays a crucial role in improving lipid metabolism processes and may be used as a therapeutic target to provide new strategies for treating lipid metabolism disorders.
Collapse
Affiliation(s)
- Shixi Cao
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (S.C.); (M.L.); (Y.H.); (S.L.); (X.Z.); (D.L.)
| | - Mengqi Liu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (S.C.); (M.L.); (Y.H.); (S.L.); (X.Z.); (D.L.)
| | - Yao Han
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (S.C.); (M.L.); (Y.H.); (S.L.); (X.Z.); (D.L.)
| | - Shouren Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (S.C.); (M.L.); (Y.H.); (S.L.); (X.Z.); (D.L.)
| | - Xiaoyan Zhu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (S.C.); (M.L.); (Y.H.); (S.L.); (X.Z.); (D.L.)
- Henan Provincial Key Laboratory of Forage Resource Innovation and Utilization, Zhengzhou 450046, China
- Henan Forage Engineering Technology Research Center, Zhengzhou 450046, China
| | - Defeng Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (S.C.); (M.L.); (Y.H.); (S.L.); (X.Z.); (D.L.)
- Henan Provincial Key Laboratory of Forage Resource Innovation and Utilization, Zhengzhou 450046, China
- Henan Forage Engineering Technology Research Center, Zhengzhou 450046, China
| | - Yinghua Shi
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (S.C.); (M.L.); (Y.H.); (S.L.); (X.Z.); (D.L.)
- Henan Provincial Key Laboratory of Forage Resource Innovation and Utilization, Zhengzhou 450046, China
- Henan Forage Engineering Technology Research Center, Zhengzhou 450046, China
| | - Boshuai Liu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (S.C.); (M.L.); (Y.H.); (S.L.); (X.Z.); (D.L.)
- Henan Provincial Key Laboratory of Forage Resource Innovation and Utilization, Zhengzhou 450046, China
- Henan Forage Engineering Technology Research Center, Zhengzhou 450046, China
| |
Collapse
|
6
|
Jangam A, Tirunavalli SK, Adimoolam BM, Kasireddy B, Patnaik SS, Erukkambattu J, Thota JR, Andugulapati SB, Addlagatta A. Anti-inflammatory and antioxidant activities of Gymnema Sylvestre extract rescue acute respiratory distress syndrome in rats via modulating the NF-κB/MAPK pathway. Inflammopharmacology 2023; 31:823-844. [PMID: 36662401 PMCID: PMC9864508 DOI: 10.1007/s10787-022-01133-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 12/30/2022] [Indexed: 01/21/2023]
Abstract
Acute respiratory distress syndrome (ARDS) is one of the major causes of mortality in COVID-19 patients, due to limited therapeutic options. This prompted us to explore natural sources to mitigate this condition. Gymnema Sylvestre (GS) is an ancient medicinal plant known to have various therapeutic effects. This investigation examined the therapeutic effect of hydroalcoholic extract of Gymnema Sylvestre (HAEGS) against lipopolysaccharide (LPS)-induced lung injury and ARDS in in vitro and in vivo models. UHPLC-HRMS/GC-MS was employed for characterizing the HAEGS and identified several active derivatives including gymnemic acid, gymnemasaponins, gymnemoside, gymnemasin, quercetin, and long fatty acids. Gene expression by RT-qPCR and DCFDA analysis by flow cytometry revealed that several inflammatory cytokine/chemokine, cell injury markers, and reactive oxygen species (ROS) levels were highly upregulated in LPS control and were significantly reduced upon HAEGS treatment. Consistent with the in vitro studies, we found that in LPS-induced ARDS model, pre-treatment with HAEGS significantly suppressed the LPS-induced elevation of inflammatory cell infiltrations, cytokine/chemokine marker expression, ROS levels, and lung injury in a dose-dependent manner. Further mechanistic studies demonstrated that HAEGS suppressed oxidative stress by modulating the NRF2 pathway and ameliorated the ARDS through the NF-κB/MAPK signalling pathway. Additional fractionation results revealed that fraction 6 which has the exclusive composition of gymnemic acid derivatives showed better anti-inflammatory effects (inhibition of IL-6 and IL-1β) at lower concentrations compared to HAEGS. Overall, HAEGS significantly mitigated LPS-induced lung injury and ARDS by targeting the NF-κB/MAPK signalling pathway. Thus, our work unravels the protective role of HAEGS for the first time in managing ARDS.
Collapse
Affiliation(s)
- Aruna Jangam
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana 500007 India ,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002 India
| | - Satya Krishna Tirunavalli
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana 500007 India ,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002 India
| | - Bala Manikantha Adimoolam
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana 500007 India ,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002 India
| | - Bhavana Kasireddy
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana 500007 India
| | - Samata Sai Patnaik
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana 500007 India
| | - Jayashankar Erukkambattu
- Department of Pathology and Laboratory Medicine, All India Institute of Medical Sciences, Bhopal, Madhya Pradesh 462020 India
| | - Jagadeshwar Reddy Thota
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana 500007 India ,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002 India ,Department of Analytical and Structural Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Sai Balaji Andugulapati
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana 500007 India ,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002 India
| | - Anthony Addlagatta
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana 500007 India ,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002 India
| |
Collapse
|
7
|
Li A, Wang J, Kou R, Chen M, Zhang B, Zhang Y, Liu J, Xing X, Peng B, Wang S. Polyphenol-rich oolong tea alleviates obesity and modulates gut microbiota in high-fat diet-fed mice. Front Nutr 2022; 9:937279. [PMID: 35967777 PMCID: PMC9366432 DOI: 10.3389/fnut.2022.937279] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 07/07/2022] [Indexed: 11/13/2022] Open
Abstract
Obesity is a major public health issue worldwide. Oolong tea (OT), which is partially fermented from Camellia sinensis leaves, has proven health benefits and potential preventive applications in multiple studies. However, research on the role of OT in obesity prevention and potential mechanisms is still limited. The purpose of this study was to investigate the modulatory effects of OT intervention on high-fat diet (HFD)-induced obesity and gut microbiota dysbiosis using an obese mouse model. Our results showed that 8-week OT supplementation with 93.94% polyphenols significantly decreased body weight gain, adipose tissue mass, and serum levels of triglyceride (2.60 mmol/L), cholesterol (5.49 mmol/L), and low-density lipoprotein cholesterol (0.61 mmol/L) in HFD-fed mice. Meanwhile, OT intervention was observed to improve fat accumulation, hepatic damage, glucose intolerance, and endotoxemia and alleviate inflammation by decreasing the levels of pro-inflammatory factors. OT also upregulated the expression of genes including Srebf1, Ppara, Lxra, Pgc1a, and Hsl and downregulated the expression of genes including Leptin, Il-6, and Il-1b. In addition, the gut dysbiosis characterized by decreased flora diversity and increased Firmicutes/Bacteroidetes ratio in obese mice was recovered by OT intervention. Certain differentially abundant microbes caused by HFD feeding, including Enterococcus, Intestinimonas, Blautia, and Bilophila, were also improved by OT treatment. This study demonstrated that OT, as a novel resource of dietary polyphenols, exhibited a protective effect on HFD-induced obesity and gut microbiota disorder.
Collapse
Affiliation(s)
- Ang Li
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin, China
| | - Jin Wang
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin, China
| | - Ruixin Kou
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin, China
| | - Mengshan Chen
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin, China
| | - Bowei Zhang
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin, China
| | - Yan Zhang
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin, China
| | - Jingmin Liu
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin, China
| | - Xiaolong Xing
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin, China
| | - Bo Peng
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin, China
| | - Shuo Wang
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin, China
| |
Collapse
|
8
|
Gao J, Guo K, Du M, Mao X. Bovine α-lactalbumin-derived peptides attenuate TNF-α-induced insulin resistance and inflammation in 3T3-L1 adipocytes through inhibiting JNK and NF-κB signaling. Food Funct 2022; 13:2323-2335. [PMID: 35142310 DOI: 10.1039/d1fo01217g] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Bioactive peptides in bovine α-lactalbumin were isolated and identified, and the effects and mechanisms of peptide KILDK on insulin resistance in 3T3-L1 adipocytes were investigated. Mature 3T3-L1 adipocytes were stimulated with TNF-α to induce insulin resistance. Bovine α-lactalbumin hydrolysates (α-LAH) were subjected to stimulated gastrointestinal digestion and Caco-2 absorption, and GD-α-LAH and CA-α-LAH were obtained. Our results demonstrated that α-LAH, GD-α-LAH, and CA-α-LAH increased glucose uptake, enhanced Akt phosphorylation (Ser473), and decreased IRS-1 phosphorylation (Ser307) in insulin resistant 3T3-L1 adipocytes. Gel filtration chromatography and liquid chromatography-electrospray ionization tandem mass spectrometry (LC-ESI MS/MS) were used to separate and identify bioactive peptides. The identified peptide KILDK attenuated insulin resistance in 3T3-L1 adipocytes, which was attributed to the suppression of JNK phosphorylation (Thr183/Tyr185). Moreover, KILDK downregulated pro-inflammatory genes through blocking NF-κB signaling. Our findings suggested that bovine α-LAH might be a potential ingredient against insulin resistance.
Collapse
Affiliation(s)
- Jing Gao
- Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
| | - Kairui Guo
- Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
| | - Min Du
- Department of Animal Science, Washington State University, Pullman, WA 99164, USA
| | - Xueying Mao
- Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
| |
Collapse
|
9
|
Smoak P, Burke SJ, Collier JJ. Botanical Interventions to Improve Glucose Control and Options for Diabetes Therapy. SN COMPREHENSIVE CLINICAL MEDICINE 2021; 3:2465-2491. [PMID: 35098034 PMCID: PMC8796700 DOI: 10.1007/s42399-021-01034-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Diabetes mellitus is a major public health problem worldwide. This endocrine disease is clustered into distinct subtypes based on the route of development, with the most common forms associated with either autoimmunity (T1DM) or obesity (T2DM). A shared hallmark of both major forms of diabetes is a reduction in function (insulin secretion) or mass (cell number) of the pancreatic islet beta-cell. Diminutions in both mass and function are often present. A wide assortment of plants have been used historically to reduce the pathological features associated with diabetes. In this review, we provide an organized viewpoint focused around the phytochemicals and herbal extracts investigated using various preclinical and clinical study designs. In some cases, crude extracts were examined directly, and in others, purified compounds were explored for their possible therapeutic efficacy. A subset of these studies compared the botanical product with standard of care prescribed drugs. Finally, we note that botanical formulations are likely suspects for future drug discovery and refinement into class(es) of compounds that have either direct or adjuvant therapeutic benefit.
Collapse
Affiliation(s)
- Peter Smoak
- Laboratory of Islet Biology and Inflammation, Pennington Biomedical Research Center, Louisiana State University System, 6400 Perkins Road, Baton Rouge, LA 70808, USA
| | - Susan J. Burke
- Immunogenetics Laboratory, Pennington Biomedical Research Center, Louisiana State University System, 6400 Perkins Road, LA 70808 Baton Rouge, USA
| | - J. Jason Collier
- Laboratory of Islet Biology and Inflammation, Pennington Biomedical Research Center, Louisiana State University System, 6400 Perkins Road, Baton Rouge, LA 70808, USA
| |
Collapse
|
10
|
Yun L, Li W, Liu Y, Wu T, Zhang M. Regulation of wheat germ polysaccharides in the immune response of mice from newborn to adulthood associated with intestinal microbiota. Food Funct 2021; 11:9662-9674. [PMID: 33211056 DOI: 10.1039/d0fo02031a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The aim of this study was to determine the effects of wheat germ polysaccharides (WGPs), which are indigestible carbohydrate fibers, on mice in early life, and the changes leading to long-lasting consequences. We determined the influences of early life ceftriaxone and WGP treatment on intestinal microbiota and immunity both in newborn and adulthood mice. The results showed that ceftriaxone significantly altered the intestinal microbiota, short-chain fatty acids' (SCFAs) metabolism, organ index, and serum OVA-specific IgE levels in newborn mice. Comparing adulthood mice to ceftriaxone-treated mice, the diversity and composition of intestinal microbiota were significantly improved after WGP treatment. In addition, the levels of OVA-specific IgE in the WGP-treated mice were significantly decreased, and the expression of cytokines (IL-2, IL-4, IL-6, IFN-γ, and TNF-α) were obviously increased. Therefore, we speculate that the mechanism of action of the indigestible carbohydrate fibers of WGPs is through maintaining immune homeostasis in newborns, which may partly last into adulthood. More importantly, this may be closely related to alterations in the intestinal microbiota.
Collapse
Affiliation(s)
- Liyuan Yun
- State Key Laboratory of Food Nutrition and Safety, Food Biotechnology Engineering Research Center of Ministry of Education, College of food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China.
| | | | | | | | | |
Collapse
|
11
|
Wu J, Liu Y, Dou Z, Wu T, Liu R, Sui W, Jin Y, Zhang M. Black garlic melanoidins prevent obesity, reduce serum LPS levels and modulate the gut microbiota composition in high-fat diet-induced obese C57BL/6J mice. Food Funct 2021; 11:9585-9598. [PMID: 33151233 DOI: 10.1039/d0fo02379e] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The objective of this study is to assess the potential anti-obesity effects of black garlic melanoidins (MLDs) and gut microbiota changes in an animal model, hypothesizing that the effects of oral administration of MLDs can be partially mediated by the modulation of intestinal microbiota via inhibiting the formation of lipopolysaccharides (LPS) and promoting the production of short-chain fatty acids (SCFAs). The effects of MLDs in C57BL/6J mice with high-fat diet (HFD)-induced obesity were investigated for 12 weeks with low (50 mg kg-1 day-1), medium (100 mg kg-1 day-1) and high (200 mg kg-1 day-1) doses. The results indicated that oral administration of MLDs markedly reduced high fat diet-induced weight gain and white adipose tissue weights and reversed glucose tolerance, especially at high doses. Besides, MLDs could alleviate dyslipidaemia, significantly suppress hepatic lipid accumulation and steatosis and effectively ameliorate lipid metabolism. The plasma LPS reduced significantly and the SCFAs increased in a dose-dependent manner. The MLDs could down-regulate the expression of fatty acid synthase (FAS) and interleukin-6 (IL-6) and up-regulate the expression of adipose triacylglyceride lipase (ATGL) and hormone sensitive lipase (HSL) in adipose tissues and livers at mRNA levels. Moreover, after the oral administration of MLDs, the intestinal microbial environment improved in the sense that bacterial diversity and richness increased. Intervention with MLDs modified the gut microbiota in mice with HFD-induced obesity, increasing the number of SCFA-producing bacteria (Bacteroidaceae) and reducing opportunistic pathogens (Enterobacteriaceae and Desulfovibrionaceae). An increased abundance of other probiotics including Lactobacillaceae and Akkermansiaceae was also observed. In conclusion, MLDs could improve glucose tolerance, induce the production of SCFAs and inhibit the production of endotoxin LPS, most likely mediated by modulating the gut microbiota. Therefore, it seems that MLDs exhibit anti-obesity effects and might be used as potential agents against obesity.
Collapse
Affiliation(s)
- Jianfu Wu
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China.
| | | | | | | | | | | | | | | |
Collapse
|
12
|
Yang L, Lin H, Lin W, Xu X. Exercise Ameliorates Insulin Resistance of Type 2 Diabetes through Motivating Short-Chain Fatty Acid-Mediated Skeletal Muscle Cell Autophagy. BIOLOGY 2020; 9:biology9080203. [PMID: 32756447 PMCID: PMC7464264 DOI: 10.3390/biology9080203] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 07/28/2020] [Accepted: 08/02/2020] [Indexed: 02/07/2023]
Abstract
Background: Exercise can ameliorate type II diabetes mellitus (T2DM) by regulating intestinal flora metabolites. However, the detailed mechanism needs to be further explored. Methods: A T2DM model using mice was established by feeding them a high-fat diet and giving them subsequent streptozocin injections. Fasting blood glucose and serum insulin were determined by blood glucose meter and radioimmunoassay, respectively. Intestinal flora was measured by 16sRNA sequencing. SCFA content was measured by gas chromatography (GC) or enzyme-linked immunosorbent assay (ELISA). A fluorescently labeled 2-deoxyglucose (2-NBDG) kit was employed to detect glucose uptake capacity, and western blot was utilized to explore the signaling pathway of insulin resistance and cell autophagy. Results: In the T2DM model, along with a reduction in insulin resistance (IR), exercise reversed the decline of intestinal Bacteroidetes and the increase of Firmicutes. For metabolites of Bacteroides, exercise restored the decline in total intestinal and plasma short-chain fatty acids (SCFAs) in T2DM mice. However, the administration of GLPG0974—the inhibitor of G protein-coupled receptor 43 (GPR43), which is the receptor of SCFAs—abolished exercise-mediated alleviation in IR in vivo and acetate-mediated reduction of skeletal muscle IR (SMIR) in vitro. Mechanistically, exercise induced skeletal muscle cell autophagy, thereby ameliorating SMIR, which was neutralized by GLPG0974 exposure. Conclusions: Exercise-mediated SCFAs-upregulation may ameliorate insulin resistance (IR) through increasing autophagy of skeletal muscle cells by binding to GPR43. This study provides a theoretical basis for targeting gut bacterial metabolites to prevent T2DM.
Collapse
Affiliation(s)
- Ling Yang
- National Demonstration Center for Experimental Sports Science Education, School of Physical Education, South China Normal University, Guangzhou 510006, China;
- School of Physical Education, Shao Guan University, Shaoguan 512000, China
| | - Haiqi Lin
- School of Physical Education, South China University of Technology, Guangzhou 510641, China;
| | - Wentao Lin
- Guangzhou Institute of Physical Education, Guangzhou Sport University, Guangzhou 510500, China;
| | - Xiaoyang Xu
- National Demonstration Center for Experimental Sports Science Education, School of Physical Education, South China Normal University, Guangzhou 510006, China;
- Correspondence: ; Tel.: +86-135-0300-9002
| |
Collapse
|
13
|
Luo Z, Xu W, Zhang Y, Di L, Shan J. A review of saponin intervention in metabolic syndrome suggests further study on intestinal microbiota. Pharmacol Res 2020; 160:105088. [PMID: 32683035 DOI: 10.1016/j.phrs.2020.105088] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 06/13/2020] [Accepted: 07/14/2020] [Indexed: 12/16/2022]
Abstract
Metabolic syndrome (MetS) is a series of symptoms including insulin resistance, obesity, dyslipidemia, elevated fasting blood glucose levels, and hepatic steatosis. As a key criterion in MetS, the onset of insulin resistance is related to abnormal levels of circulating free fatty acids and adipokines. It has been discovered in recent years that metabolites and pathogen-associated molecular patterns of intestinal/gut microbiota are also important factors that cause insulin resistance and MetS. Saponins are the main components of many botanicals and traditional Chinese medicines (TCMs), such as ginseng, platycodon, licorice, and alfalfa. They have poor bioavailability, but can be transformed into secondary glycosides and aglycones by intestinal microbiota, further being absorbed. Based on in vivo and in vitro data, we found that saponins and their secondary metabolites have a preventive effect on MetS, and the effective targets are distributed in the intestine and other organs in human body. Intestinal targets involve pancreatic lipase, dietary cholesterol, and intestinal microbiota. Other targets include central appetite, nuclear receptors such as PPAR and LXR, AMPK signaling pathway and adipokines levels, etc. In view of the poor bioavailability of saponins, it is inferred that targets for prototype-saponins to interfere with MetS is mainly located in the intestine, and the activation of other targets may be related to secondary glycosides and aglycones transformed from saponins by intestinal flora. We suggest that the role of intestinal microbiota in saponin intervention in MetS should be further investigated.
Collapse
Affiliation(s)
- Zichen Luo
- Institute of Pediatrics, Jiangsu Key Laboratory of Pediatric Respiratory Disease, Nanjing University of Chinese Medicine, Nanjing 210023, China; Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Engineering Research Center for Efficient Delivery System of TCM, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Weichen Xu
- Institute of Pediatrics, Jiangsu Key Laboratory of Pediatric Respiratory Disease, Nanjing University of Chinese Medicine, Nanjing 210023, China; Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Engineering Research Center for Efficient Delivery System of TCM, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Ying Zhang
- Genome Center of UC Davis, NIH West Coast Metabolomics Center, Davis, CA, 95616, USA
| | - Liuqing Di
- Jiangsu Engineering Research Center for Efficient Delivery System of TCM, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China.
| | - Jinjun Shan
- Institute of Pediatrics, Jiangsu Key Laboratory of Pediatric Respiratory Disease, Nanjing University of Chinese Medicine, Nanjing 210023, China; Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Engineering Research Center for Efficient Delivery System of TCM, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China.
| |
Collapse
|