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Yen S, Wang Y, Liao LD. Investigating cerebral neurovascular responses to hyperglycemia in a rat model of type 2 diabetes using multimodal assessment techniques. iScience 2024; 27:110108. [PMID: 38952685 PMCID: PMC11215308 DOI: 10.1016/j.isci.2024.110108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 03/22/2024] [Accepted: 05/23/2024] [Indexed: 07/03/2024] Open
Abstract
To study neurovascular function in type 2 diabetes mellitus (T2DM), we established a high-fat diet/streptozotocin (HFD/STZ) rat model. Electrocorticography-laser speckle contrast imaging (ECoG-LSCI) revealed that the somatosensory-evoked potential (SSEP) amplitude and blood perfusion volume were significantly lower in the HFD/STZ group. Cortical spreading depression (CSD) velocity was used as a measure of neurovascular function, and the results showed that the blood flow velocity and the number of CSD events were significantly lower in the HFD/STZ group. In addition, to compare changes during acute hyperglycemia and hyperglycemia, we used intraperitoneal injection (IPI) of glucose to induce transient hyperglycemia. The results showed that CSD velocity and blood flow were significantly reduced in the IPI group. The significant neurovascular changes observed in the brains of rats in the HFD/STZ group suggest that changes in neuronal apoptosis may play a role in altered glucose homeostasis in T2DM.
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Affiliation(s)
- Shaoyu Yen
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, 35, Keyan Road, Zhunan Town, Miaoli County 350, Taiwan
| | - Yuhling Wang
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, 35, Keyan Road, Zhunan Town, Miaoli County 350, Taiwan
- Department of Electrical Engineering, National United University, No. 2, Lianda, Nanshili, Miaoli City 36063, Taiwan
| | - Lun-De Liao
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, 35, Keyan Road, Zhunan Town, Miaoli County 350, Taiwan
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Jiang P, Di Z, Huang W, Xie L. Modulating the Gut Microbiota and Metabolites with Traditional Chinese Medicines: An Emerging Therapy for Type 2 Diabetes Mellitus and Its Complications. Molecules 2024; 29:2747. [PMID: 38930814 PMCID: PMC11206945 DOI: 10.3390/molecules29122747] [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: 03/04/2024] [Revised: 05/30/2024] [Accepted: 06/03/2024] [Indexed: 06/28/2024] Open
Abstract
Currently, an estimated 537 million individuals are affected by type 2 diabetes mellitus (T2DM), the occurrence of which is invariably associated with complications. Glucose-lowering therapy remains the main treatment for alleviating T2DM. However, conventional antidiabetic agents are fraught with numerous adverse effects, notably elevations in blood pressure and lipid levels. Recently, the use of traditional Chinese medicines (TCMs) and their constituents has emerged as a preferred management strategy aimed at curtailing the progression of diabetes and its associated complications with fewer adverse effects. Increasing evidence indicates that gut microbiome disturbances are involved in the development of T2DM and its complications. This regulation depends on various metabolites produced by gut microbes and their interactions with host organs. TCMs' interventions have demonstrated the ability to modulate the intestinal bacterial microbiota, thereby restoring host homeostasis and ameliorating metabolic disorders. This review delves into the alterations in the gut microbiota and metabolites in T2DM patients and how TCMs treatment regulates the gut microbiota, facilitating the management of T2DM and its complications. Additionally, we also discuss prospective avenues for research on natural products to advance diabetes therapy.
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Affiliation(s)
- Peiyan Jiang
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Zhenghan Di
- National Engineering Research Center for Beijing Biochip Technology, Beijing 102206, China
| | - Wenting Huang
- Medical Systems Biology Research Center, School of Medicine, Tsinghua University, Beijing 100084, China
| | - Lan Xie
- National Engineering Research Center for Beijing Biochip Technology, Beijing 102206, China
- Medical Systems Biology Research Center, School of Medicine, Tsinghua University, Beijing 100084, China
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Liu T, Zhao M, Zhang Y, Xu R, Fu Z, Jin T, Song J, Huang Y, Wang M, Zhao C. Polysaccharides from Phellinus linteus attenuate type 2 diabetes mellitus in rats via modulation of gut microbiota and bile acid metabolism. Int J Biol Macromol 2024; 262:130062. [PMID: 38340923 DOI: 10.1016/j.ijbiomac.2024.130062] [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: 07/06/2023] [Revised: 02/02/2024] [Accepted: 02/06/2024] [Indexed: 02/12/2024]
Abstract
Type 2 diabetes mellitus (T2DM) is the most prevalent metabolic disorder. Polysaccharides from Phellinus linteus (PLP) have been found to have anti-diabetes effects, but the mechanism has not been elucidated. The purpose of this study was to investigate the mechanism of PLP on T2DM through the gut microbiota and bile acids metabolism. The T2DM rat model was induced by a high-fat high-carbohydrate (HFHC) diet and streptozocin (30 mg/kg). We found that PLP ameliorated diabetes symptoms. Besides, PLP intervention increased the abundance of g_Bacteroides, g_Parabacteroides, and g_Alistioes, which are associated with the biosynthesis of short-chain fatty acids (SCFAs) and bile acids (BAs) metabolism. Meanwhile, untargeted and targeted metabolomics indicated that PLP could regulate the composition of BAs and increase the levels of SCFAs. Real-time quantitative PCR (RT-qPCR) and enzyme-linked immunosorbent assay (ELISA) were performed to analyze the expression levels of BAs metabolism enzymes in the liver. Finally, the results of correlation analysis and Glucagon-like peptide-1 (GLP-1) showed that PLP stimulated the release of GLP-1 by regulating SCFAs and BAs. In conclusion, this study demonstrated that PLP can regulate gut microbiota and BAs metabolism to promote GLP-1 secretion, thereby increasing insulin release, decreasing blood glucose and attenuating T2DM.
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Affiliation(s)
- Tingting Liu
- School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, Liaoning Province, China
| | - Min Zhao
- School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, Liaoning Province, China
| | - Yumeng Zhang
- School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, Liaoning Province, China
| | - Ruixiang Xu
- School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, Liaoning Province, China
| | - Zixuan Fu
- School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, Liaoning Province, China
| | - Tong Jin
- School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, Liaoning Province, China
| | - Jiaxi Song
- School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, Liaoning Province, China
| | - Yihe Huang
- School of Public Health, Shenyang Medical College, Huanghe North Street 146, Shenyang, Liaoning Province, China
| | - Miao Wang
- School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, Liaoning Province, China.
| | - Chunjie Zhao
- School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, Liaoning Province, China.
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Yuan L, Li Y, Chen M, Xue L, Wang J, Ding Y, Gu Q, Zhang J, Zhao H, Xie X, Wu Q. Therapeutic applications of gut microbes in cardiometabolic diseases: current state and perspectives. Appl Microbiol Biotechnol 2024; 108:156. [PMID: 38244075 PMCID: PMC10799778 DOI: 10.1007/s00253-024-13007-7] [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: 09/06/2023] [Revised: 12/21/2023] [Accepted: 01/08/2024] [Indexed: 01/22/2024]
Abstract
Cardiometabolic disease (CMD) encompasses a range of diseases such as hypertension, atherosclerosis, heart failure, obesity, and type 2 diabetes. Recent findings about CMD's interaction with gut microbiota have broadened our understanding of how diet and nutrition drive microbes to influence CMD. However, the translation of basic research into the clinic has not been smooth, and dietary nutrition and probiotic supplementation have yet to show significant evidence of the therapeutic benefits of CMD. In addition, the published reviews do not suggest the core microbiota or metabolite classes that influence CMD, and systematically elucidate the causal relationship between host disease phenotypes-microbiome. The aim of this review is to highlight the complex interaction of the gut microbiota and their metabolites with CMD progression and to further centralize and conceptualize the mechanisms of action between microbial and host disease phenotypes. We also discuss the potential of targeting modulations of gut microbes and metabolites as new targets for prevention and treatment of CMD, including the use of emerging technologies such as fecal microbiota transplantation and nanomedicine. KEY POINTS: • To highlight the complex interaction of the gut microbiota and their metabolites with CMD progression and to further centralize and conceptualize the mechanisms of action between microbial and host disease phenotypes. • We also discuss the potential of targeting modulations of gut microbes and metabolites as new targets for prevention and treatment of CMD, including the use of emerging technologies such as FMT and nanomedicine. • Our study provides insight into identification-specific microbiomes and metabolites involved in CMD, and microbial-host changes and physiological factors as disease phenotypes develop, which will help to map the microbiome individually and capture pathogenic mechanisms as a whole.
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Affiliation(s)
- Lin Yuan
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Guangdong Academy of Sciences, Guangzhou, 510070, China
| | - Ying Li
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Guangdong Academy of Sciences, Guangzhou, 510070, China
| | - Moutong Chen
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Guangdong Academy of Sciences, Guangzhou, 510070, China
| | - Liang Xue
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Guangdong Academy of Sciences, Guangzhou, 510070, China
| | - Juan Wang
- College of Food Science, South China Agricultural University, Guangzhou, 510642, China
| | - Yu Ding
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, College of Science & Engineering, Jinan University, Guangzhou, 510632, China
| | - Qihui Gu
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Guangdong Academy of Sciences, Guangzhou, 510070, China
| | - Jumei Zhang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Guangdong Academy of Sciences, Guangzhou, 510070, China
| | - Hui Zhao
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Guangdong Academy of Sciences, Guangzhou, 510070, China
| | - Xinqiang Xie
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Guangdong Academy of Sciences, Guangzhou, 510070, China.
| | - Qingping Wu
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Guangdong Academy of Sciences, Guangzhou, 510070, China.
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Hou Y, Zhai X, Wang X, Wu Y, Wang H, Qin Y, Han J, Meng Y. Research progress on the relationship between bile acid metabolism and type 2 diabetes mellitus. Diabetol Metab Syndr 2023; 15:235. [PMID: 37978556 PMCID: PMC10656899 DOI: 10.1186/s13098-023-01207-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 11/02/2023] [Indexed: 11/19/2023] Open
Abstract
Bile acids, which are steroid molecules originating from cholesterol and synthesized in the liver, play a pivotal role in regulating glucose metabolism and maintaining energy balance. Upon release into the intestine alongside bile, they activate various nuclear and membrane receptors, influencing crucial processes. These bile acids have emerged as significant contributors to managing type 2 diabetes mellitus, a complex clinical syndrome primarily driven by insulin resistance. Bile acids substantially lower blood glucose levels through multiple pathways: BA-FXR-SHP, BA-FXR-FGFR15/19, BA-TGR5-GLP-1, and BA-TGR5-cAMP. They also impact blood glucose regulation by influencing intestinal flora, endoplasmic reticulum stress, and bitter taste receptors. Collectively, these regulatory mechanisms enhance insulin sensitivity, stimulate insulin secretion, and boost energy expenditure. This review aims to comprehensively explore the interplay between bile acid metabolism and T2DM, focusing on primary regulatory pathways. By examining the latest advancements in our understanding of these interactions, we aim to illuminate potential therapeutic strategies and identify areas for future research. Additionally, this review critically assesses current research limitations to contribute to the effective management of T2DM.
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Affiliation(s)
- Yisen Hou
- Department of Oncology Surgery, Xi'an No.3 Hospital, The Affiliated Hospital of Northwest University, Xi'an, 710018, Shanxi, People's Republic of China
| | - Xinzhe Zhai
- Department of General Surgery, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Third Hospital of Shanxi Medical University, Taiyuan, 030032, Shanxi, People's Republic of China
| | - Xiaotao Wang
- Department of General Surgery, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Third Hospital of Shanxi Medical University, Taiyuan, 030032, Shanxi, People's Republic of China
| | - Yi Wu
- Department of General Surgery, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Third Hospital of Shanxi Medical University, Taiyuan, 030032, Shanxi, People's Republic of China
| | - Heyue Wang
- Department of General Surgery, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Third Hospital of Shanxi Medical University, Taiyuan, 030032, Shanxi, People's Republic of China
| | - Yaxin Qin
- Department of General Surgery, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Third Hospital of Shanxi Medical University, Taiyuan, 030032, Shanxi, People's Republic of China
| | - Jianli Han
- Department of General Surgery, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Third Hospital of Shanxi Medical University, Taiyuan, 030032, Shanxi, People's Republic of China.
| | - Yong Meng
- Department of Oncology Surgery, Xi'an No.3 Hospital, The Affiliated Hospital of Northwest University, Xi'an, 710018, Shanxi, People's Republic of China.
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Dong Z, Yang J, Tian M, Wang X, Qin X, Huang Q, Wang J. Mechanism of Bile‐Processed Coptidis Rhizoma to Treat Nonalcoholic Fatty Liver Disease in Type 2 Diabetes Mellitus Based on UPLC‐Q‐TOF/MS and Network Pharmacology. ChemistrySelect 2023. [DOI: 10.1002/slct.202204236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Affiliation(s)
- Zhaowei Dong
- State Key Laboratory of Southwestern Chinese Medicine Resources Chengdu University of Traditional Chinese Medicine Chengdu China
- College of Pharmacy Chengdu University of Traditional Chinese Medicine Chengdu China
| | - Jingjing Yang
- State Key Laboratory of Southwestern Chinese Medicine Resources Chengdu University of Traditional Chinese Medicine Chengdu China
- College of Pharmacy Chengdu University of Traditional Chinese Medicine Chengdu China
| | - Maoying Tian
- State Key Laboratory of Southwestern Chinese Medicine Resources Chengdu University of Traditional Chinese Medicine Chengdu China
- College of Pharmacy Chengdu University of Traditional Chinese Medicine Chengdu China
| | - Xi Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources Chengdu University of Traditional Chinese Medicine Chengdu China
- College of Pharmacy Chengdu University of Traditional Chinese Medicine Chengdu China
| | - Xiaoyan Qin
- State Key Laboratory of Southwestern Chinese Medicine Resources Chengdu University of Traditional Chinese Medicine Chengdu China
- College of Pharmacy Chengdu University of Traditional Chinese Medicine Chengdu China
| | - Qinwan Huang
- State Key Laboratory of Southwestern Chinese Medicine Resources Chengdu University of Traditional Chinese Medicine Chengdu China
- College of Pharmacy Chengdu University of Traditional Chinese Medicine Chengdu China
| | - Jin Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources Chengdu University of Traditional Chinese Medicine Chengdu China
- College of Ethnic Medicine Chengdu University of Traditional Chinese Medicine Chengdu China
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Shimoda T, Shimizu H, Iwasaki W, Liu H, Kamo Y, Tada K, Hanai T, Hori S, Joe GH, Tanaka Y, Sato M, Miyazaki H, Ishizuka S. A diet supplemented with cholic acid elevates blood pressure accompanied by albuminuria in rats. Biosci Biotechnol Biochem 2023; 87:434-441. [PMID: 36623851 DOI: 10.1093/bbb/zbad004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 01/05/2023] [Indexed: 01/11/2023]
Abstract
A diet supplemented with cholic acid (CA), the primary 12α-hydroxylated bile acid, can induce hepatic lipid accumulation in rats without obesity. This study examined the effects of a CA-supplemented diet on blood pressure (BP). After acclimation, WKAH/HkmSlc rats (3 weeks old) were divided into two groups and fed with a control AIN-93-based diet or a CA-supplemented diet (0.5 g CA/kg) for 13 weeks. The CA diet increased systolic and diastolic BP as well as hepatic lipid concentrations in the rats. No changes were found in the blood sodium concentration. Urinary albumin concentration increased in CA-fed rats. An increase was observed in the hepatic expression of ATP-binding cassette subfamily B member 1B that correlated BPs and urinary albumin concentration accompanied by an increase in portal taurocholic acid concentration. These results suggest that 12α-hydroxylated bile acids are involved in increased BP and albuminuria via alteration of hepatic function.
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Affiliation(s)
- Tomoko Shimoda
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Japan
| | - Hidehisa Shimizu
- Institute of Agricultural and Life Sciences, Academic Assembly, Shimane University, Matsue, Japan
| | - Wakana Iwasaki
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Japan
| | - Hongxia Liu
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Japan
| | - Yoshie Kamo
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Japan
| | - Koji Tada
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Japan
| | - Taketo Hanai
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Japan
| | - Shota Hori
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Japan
| | - Ga-Hyun Joe
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Japan
- Research Faculty of Fisheries, Hokkaido University, Hakodate, Japan
| | - Yasutake Tanaka
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Japan
- Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Masao Sato
- Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Hitoshi Miyazaki
- Graduate School of Life and Environment Sciences, University of Tsukuba, Tsukuba, Japan
| | - Satoshi Ishizuka
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Japan
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Transcriptome and targeted metabolome analysis provide insights into bile acids' new roles and mechanisms on fat deposition and meat quality in lamb. Food Res Int 2022; 162:111941. [DOI: 10.1016/j.foodres.2022.111941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 07/21/2022] [Accepted: 09/12/2022] [Indexed: 11/19/2022]
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Shu Z, Chen S, Xiang H, Wu R, Wang X, Ouyang J, Zhang J, Liu H, Chen AF, Lu H. AKT/PACS2 Participates in Renal Vascular Hyperpermeability by Regulating Endothelial Fatty Acid Oxidation in Diabetic Mice. Front Pharmacol 2022; 13:876937. [PMID: 35865947 PMCID: PMC9294407 DOI: 10.3389/fphar.2022.876937] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 06/16/2022] [Indexed: 11/13/2022] Open
Abstract
Diabetes is a chronic metabolic disorder that can cause many microvascular and macrovascular complications, including diabetic nephropathy. Endothelial cells exhibit phenotypic and metabolic diversity and are affected by metabolic disorders. Whether changes in endothelial cell metabolism affect vascular endothelial function in diabetic nephropathy remains unclear. In diabetic mice, increased renal microvascular permeability and fibrosis, as well as increased MAMs and PACS2 in renal endothelial cells, were observed. Mice lacking PACS2 improved vascular leakage and glomerulosclerosis under high fat diet. In vitro, PACS2 expression, VE-cadherin internalization, fibronectin production, and Smad-2 phosphorylation increased in HUVECs treated with high glucose and palmitic acid (HGHF). Pharmacological inhibition of AKT significantly reduced HGHF-induced upregulation of PACS2 and p-Smad2 expression. Blocking fatty acid β-oxidation (FAO) ameliorated the impaired barrier function mediated by HGHF. Further studies observed that HGHF induced decreased FAO, CPT1α expression, ATP production, and NADPH/NADP+ ratio in endothelial cells. However, these changes in fatty acid metabolism were rescued by silencing PACS2. In conclusion, PACS2 participates in renal vascular hyperpermeability and glomerulosclerosis by regulating the FAO of diabetic mice. Targeting PACS2 is potential new strategy for the treatment of diabetic nephropathy.
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Affiliation(s)
- Zhihao Shu
- Health Management Center, Third Xiangya Hospital of Central South University, Changsha, China
- Department of Cardiology, Third Xiangya Hospital of Central South University, Changsha, China
| | - Shuhua Chen
- Department of Biochemistry, School of Life Sciences, Central South University, Changsha, China
| | - Hong Xiang
- Center for Experimental Medicine, Third Xiangya Hospital of Central South University, Changsha, China
| | - Ruoru Wu
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Xuewen Wang
- Department of Cardiology, Third Xiangya Hospital of Central South University, Changsha, China
| | - Jie Ouyang
- Department of Cardiology, Third Xiangya Hospital of Central South University, Changsha, China
| | - Jing Zhang
- Department of Cardiology, Third Xiangya Hospital of Central South University, Changsha, China
| | - Huiqin Liu
- Department of Cardiology, Third Xiangya Hospital of Central South University, Changsha, China
| | - Alex F. Chen
- Institute for Cardiovascular Development and Regenerative Medicine, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Hongwei Lu
- Health Management Center, Third Xiangya Hospital of Central South University, Changsha, China
- Department of Cardiology, Third Xiangya Hospital of Central South University, Changsha, China
- *Correspondence: Hongwei Lu,
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Shen J, Zhang L, Wang Y, Chen Z, Ma J, Fang X, Das UN, Yao K. Beneficial Actions of Essential Fatty Acids in Streptozotocin-Induced Type 1 Diabetes Mellitus. Front Nutr 2022; 9:890277. [PMID: 35669071 PMCID: PMC9164285 DOI: 10.3389/fnut.2022.890277] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Accepted: 03/31/2022] [Indexed: 12/28/2022] Open
Abstract
The essential fatty acids (EFA), n3 alpha-linolenic acid (ALA), and n6 linoleic acid (LA) are of benefit in diabetes mellitus, but their mechanisms of action are unknown. We, therefore, examined the effects of EFAs on the metabolism, gut microbiota, and inflammatory and retinal histopathology indices in streptozotocin (STZ)-induced type 1 diabetes mellitus (T1DM) animals, and we assessed the levels of vitreal lipoxin A4 (LXA4)-derived from LA-in subjects with diabetic retinopathy (DR). STZ-induced T1DM rats received LA or ALA 100 μg/day intraperitoneally on alternate days for 21 days, and their blood glucose; lipid profile; plasma, hepatic, and retinal fatty acid profiles (by gas chromatography); retinal histology; activities of hepatic and retinal desaturases; and inflammatory markers (by qRT-PCR) were evaluated. Gut microbiota composition was assayed by 16S rDNA sequencing technology of the fecal samples, and their short-chain fatty acids and bile acids were assayed by gas chromatography, liquid chromatography coupled with tandem mass spectrometry, respectively. The human vitreal fatty acid profiles of subjects with proliferative DR and LXA4 levels were measured. LA and ALA significantly improved the plasma glucose and lipid levels; increased the abundance of Ruminococcaceae (the ALA-treated group), Alloprevotella, Prevotellaceae_Ga6A1_group, Ruminococcaceae_UCG_010, and Ruminococcus_1 (the LA-treated group) bacteria; enhanced acetate and butyrate levels; and augmented fecal and hepatic concentrations of cholic acid, chenodeoxycholic acid, and tauro ursodeoxycholic acid in ALA- and LA-treated animals. Significant STZ-induced decreases in plasma LA, gamma-linolenic acid, arachidonic acid, and ALA levels reverted to near normal, following LA and ALA treatments. Significant changes in the expression of desaturases; COX-2, 5-LOX, and 12-LOX enzymes; and cytokines in T1DM were reverted to near normal by EFAs. DR subjects also had low retinal LXA4 levels. The results of the present study show that ALA and LA are of significant benefit in reversing metabolism, gut microbiota, and inflammatory and retinal index changes seen in T1DM, suggesting that EFAs are of benefit in diabetes mellitus.
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Affiliation(s)
- Junhui Shen
- Eye Center, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Ophthalmology of Zhejiang Province, Hangzhou, China
| | - Li Zhang
- Eye Center, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Ophthalmology of Zhejiang Province, Hangzhou, China
| | - Yuanqi Wang
- Eye Center, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Ophthalmology of Zhejiang Province, Hangzhou, China
| | - Zhiqing Chen
- Eye Center, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Ophthalmology of Zhejiang Province, Hangzhou, China
| | - Jian Ma
- Eye Center, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Ophthalmology of Zhejiang Province, Hangzhou, China
| | - Xiaoyun Fang
- Eye Center, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Ophthalmology of Zhejiang Province, Hangzhou, China
| | - Undurti N. Das
- UND Life Sciences, Battle Ground, WA, United States
- Department of Biotechnology, Indian Institute of Technology, Kandi, India
| | - Ke Yao
- Eye Center, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Ophthalmology of Zhejiang Province, Hangzhou, China
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Du L, Li Q, Yi H, Kuang T, Tang Y, Fan G. Gut microbiota-derived metabolites as key actors in type 2 diabetes mellitus. Biomed Pharmacother 2022; 149:112839. [PMID: 35325852 DOI: 10.1016/j.biopha.2022.112839] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/14/2022] [Accepted: 03/16/2022] [Indexed: 12/01/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) is one of the most risk factors threatening human health. Although genetic and environmental factors contribute to the development of T2DM, gut microbiota has also been found to be involved. Gut microbiota-derived metabolites are a key factor in host-microbe crosstalk, and have been revealed to play a central role in the physiology and physiopathology of T2DM. In this review, we provide a timely and comprehensive summary of the microbial metabolites that are protective or causative for T2DM, including some amino acids-derived metabolites, short-chain fatty acids, trimethylamine N-oxide, and bile acids. The mechanisms by which metabolites affect T2DM have been elaborated. Knowing more about these processes will increase our understanding of the causal relationship between gut microbiota and T2DM. Moreover, some frontier therapies that target gut microbes and their metabolites to improve T2DM, including dietary intervention, fecal microbiota transplantation, probiotics, prebiotics or synbiotics intervention, and drugging microbial metabolism, have been critically discussed. This review may provide novel insights for the development of targeted and personalized treatments for T2DM based on gut microbial metabolites. More high-quality clinical trials are needed to accelerate the clinical translation of gut-targeted therapies for T2DM.
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Affiliation(s)
- Leilei Du
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Qi Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Huan Yi
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Tingting Kuang
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Yi Tang
- Department of Endocrinology, Chengdu Fifth People's Hospital, Chengdu 611130, China.
| | - Gang Fan
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
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Jiang X, Xu Q, Zhang A, Liu Y, Li Z, Tang H, Cao D, Zhang D. Revealing the Hypoglycemic Effects and Mechanism of GABA-Rich Germinated Adzuki Beans on T2DM Mice by Untargeted Serum Metabolomics. Front Nutr 2022; 8:791191. [PMID: 34970582 PMCID: PMC8712313 DOI: 10.3389/fnut.2021.791191] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 11/02/2021] [Indexed: 12/31/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) is one of the most common metabolic diseases, and exploring strategies to prevent and treat diabetes has become extremely important. In recent decades the search for new therapeutic strategies for T2DM involving dietary interventions has attracted public attention. We established a diabetic mouse model by feeding mice a high-fat diet combined with injection of low-dose streptozotocin, intending to elucidate the effects and possible mechanisms of different dosages of γ-aminobutyric acid (GABA)-rich germinated adzuki beans on the treatment of diabetes in mice. The mice were treated for 6 weeks either with increasing doses of GABA-enriched germinated adzuki beans, with non-germinated adzuki beans, with GABA, or with the positive control drug metformin. Then, the blood glucose levels and blood lipid biochemical indicators of all the mice were measured. At the same time, serum differential metabolite interactions were explored by UPLC-Q/TOF-MS-based serum metabolomic analysis. The results showed that body weight and fasting blood glucose levels were significantly reduced (P < 0.05). We also report improved levels of total cholesterol, triglycerides, aspartate aminotransferase, alanine aminotransferase, urea, and serum creatinine. We observed a significant improvement in the homeostasis model assessment of the beta cell function and insulin resistance (HOMA-β and HOMA-IR) scores (P < 0.05) in the group of mice treated with the highest dose of GABA-enriched germinated adzuki beans. In addition, the metabolic profiles of the serum were analyzed, and 31 differential metabolites including amino acids and lipids were obtained. According to the Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis, this was found to be correlated with nine significantly enriched metabolic pathways involving the up-regulation of levels of L-serine, SM (d18:1/22:1(13Z)), L-histidine, creatine, and 3-indoleacetic acid. Our data suggest that the hypoglycemic effect of GABA-enriched germinated adzuki beans on diabetic mice may be related to improving tryptophan metabolism, glycerol phospholipid metabolism, sphingosline metabolism, and the glycine, serine, and threonine metabolic pathways. This study provides a reference for the application of GABA-enriched germinated foods in type 2 diabetes and could provide a cue for searching biomarkers to be adopted for T2DM diagnosis.
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Affiliation(s)
- Xiujie Jiang
- National Coarse Cereals Engineering Research Center, Heilongjiang Bayi Agricultural University, Daqing, China.,College of Food Science, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Qingpeng Xu
- College of Food Science, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Aiwu Zhang
- College of Food Science, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Yong Liu
- Experimental Equipment Management Center, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Zhijiang Li
- College of Food Science, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Huacheng Tang
- National Coarse Cereals Engineering Research Center, Heilongjiang Bayi Agricultural University, Daqing, China.,College of Food Science, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Dongmei Cao
- College of Food Science, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Dongjie Zhang
- National Coarse Cereals Engineering Research Center, Heilongjiang Bayi Agricultural University, Daqing, China.,College of Food Science, Heilongjiang Bayi Agricultural University, Daqing, China
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Liver proteomics analysis reveals abnormal metabolism of bile acid and arachidonic acid in Chinese hamsters with type 2 diabetes mellitus. J Proteomics 2021; 239:104186. [PMID: 33722748 DOI: 10.1016/j.jprot.2021.104186] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 02/23/2021] [Accepted: 03/06/2021] [Indexed: 12/17/2022]
Abstract
Non-obese, spontaneous, and genetically predisposed type 2 diabetic Chinese hamsters exhibit metabolic abnormalities similar to those observed in human T2DM. Here, tandem mass tag (TMT)-based quantitative proteomics technology was used to screen and identify differentially abundant proteins in the liver that are associated with diabetes in Chinese hamsters. GO and KEGG pathway enrichment analysis were conducted to validate the findings, as well as qRT-PCR and western blotting. In total, 103 proteins were identified in the livers of diabetic hamsters, of which 48 were up-regulated and 55 were down-regulated. KEGG pathway enrichment analysis further demonstrated that linoleic acid metabolism, arachidonic acid metabolism, bile secretion, and other pathways were affected. Moreover, AQP9 and EPHX1 were significantly down-regulated in the bile secretion pathway, whereas PTGES2, Cyp2c27, and Cyp2c70 were associated with the arachidonic acid metabolic pathway. Serum levels of bile acid (BA) and arachidonic acid (AA) in diabetic Chinese hamsters were significantly higher than those in control hamsters. Cumulatively, our findings indicate that the five candidate proteins may be associated with abnormal BA and AA metabolism, suggesting their involvement in pathological changes in the livers of Chinese hamsters with T2DM. SIGNIFICANCE: The liver proteomics of Chinese hamsters describes differentially abundant proteins associated with T2DM, while promoting this animal model as an appropriate and ideal platform for investigating underlying molecular mechanisms of T2DM. This study reveals abnormal bile acid and arachidonic acid metabolism in T2DM hamsters, which may provide insights for studying the relationship between candidate proteins and KEGG pathways to elucidate the underlying molecular mechanism associated with T2DM.
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Chen H, Zhou S, Li J, Huang X, Cheng J, Jiang X, Qin W, Liu Y, Liu A, Zhang Q, Lin D, Zhang Z, Chen D. Xyloglucan compounded inulin or arabinoxylan against glycometabolism disorder via different metabolic pathways: Gut microbiota and bile acid receptor effects. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.104162] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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Ming Y, Ma QH, Han XL, Li HY. Molecular hydrogen improves type 2 diabetes through inhibiting oxidative stress. Exp Ther Med 2020; 20:359-366. [PMID: 32537002 PMCID: PMC7291681 DOI: 10.3892/etm.2020.8708] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Accepted: 03/19/2020] [Indexed: 12/19/2022] Open
Abstract
The aim of the present study was to investigate the potential therapeutic effects of molecular hydrogen on type 2 diabetes mellitus (T2DM) in rats. Following maintenance on a high-fat diet for 4 weeks, a T2DM model was established using an injection of 30 mg/kg streptozotocin via the caudal vein into Sprague-Dawley rats. On day 0 and Day 80, the blood samples were obtained from each rat for the measurement of biochemical indicators including blood lipids, fasting blood glucose, hepatic glycogen, fasting serum insulin, insulin sensitivity index, insulin resistance index, serum superoxide dismutase (SOD) and serum malondialdehyde (MDA) using an automatic biochemical analyzer. The kidneys and pancreas tissues were harvested for HE staining and Western blot assay of toll-like receptor 4 (TLR4), myeloid differentiation primary response 88 (MyD88), phosphorylated (p)-p65, p65, p-IκB and IκB. The results showed that in rats with T2DM, molecular hydrogen treatment decreased fasting blood glucose levels, increased hepatic glycogen synthesis and improved insulin sensitivity. Treatment with molecular hydrogen also increased the production of SOD whilst decreasing the production of MDA. In addition, molecular hydrogen alleviated the pathological changes exhibited by pancreatic islets and kidney during T2DM. Mechanistically, molecular hydrogen decreased TLR4 and MyD88 expression levels whilst also decreasing p65 and NF-κB inhibitor phosphorylation. In conclusion, molecular hydrogen exerted therapeutic effects against T2DM by improving hyperglycemia and inhibiting oxidative stress through mechanisms that are associated with the TLR4/MyD88/NF-κB signaling pathway.
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Affiliation(s)
- Yi Ming
- Department of Endocrinology, Weifang People's Hospital, Weifang, Shandong 261041, P.R. China
| | - Qi-Hang Ma
- Department of Endocrinology, Weifang People's Hospital, Weifang, Shandong 261041, P.R. China
| | - Xin-Li Han
- Department of Encephalopathy, Weifang Hospital of Traditional Chinese Medicine, Weifang, Shandong 261000, P.R. China
| | - Hong-Yan Li
- Department of Endocrinology, Weifang People's Hospital, Weifang, Shandong 261041, P.R. China
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Effects of the amount and type of carbohydrates used in type 2 diabetes diets in animal models: A systematic review. PLoS One 2020; 15:e0233364. [PMID: 32530969 PMCID: PMC7292416 DOI: 10.1371/journal.pone.0233364] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 05/04/2020] [Indexed: 12/28/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) is among the most prevalent diseases in the world, affecting over 420 million people. The disease is marked by a poor metabolic effect of insulin leading to chronic hyperglycaemia, which can result in microvascular complications. It is widely known that postprandial glycaemia is reliant on the total carbohydrate content of a meal. However, the importance of the amount and the source of these carbohydrates remains controversial due to mechanisms other than insulin secretion. Oxidative stress, inflammation, pyruvate production and the quality of the intestinal microbiota, resulting in plasma lipopolysaccharides and short-chain fatty acids production, play an important role in blood sugar control and consequently in type 2 diabetes. Thus, we systematically reviewed the preclinical evidences on the impact of the amount and type of carbohydrate found in different diets and its influence on blood glucose levels in diabetic animals. We used a comprehensive and structured search in biomedical databases Medline (PubMed), Scopus and Web of Science, recovering and analyzing 27 original studies. Results showed that sucrose-rich diets deteriorated diabetic condition in animal models regardless of the total dietary carbohydrate content. On the other hand, fiber, particularly resistant starch, improved blood glucose parameters through direct and indirect mechanisms, such as delayed gastric emptying and improved gut microbiota. All studies used rodents as animal models and male animals were preferred over females. Improvements in T2DM parameters in animal models were more closely related to the type of dietary carbohydrate than to its content on a diet, i. e., resistant starch seems to be the most beneficial source for maintaining normoglycemia. Results show that current literature is at high risk of bias due to neglecting experimental methods.
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Reply: Hyaluronic Acid-Povidone-Iodine Compound Facilitates Diabetic Wound Healing in a Streptozotocin-Induced Diabetes Rodent Model. Plast Reconstr Surg 2020; 145:455e-456e. [PMID: 31985684 DOI: 10.1097/prs.0000000000006450] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Li S, Liang M, Pan Y, Wang M, Gao D, Shang H, Su Q, Laher I. Exercise modulates heat shock protein 27 activity in diabetic cardiomyopathy. Life Sci 2020; 243:117251. [PMID: 31904365 DOI: 10.1016/j.lfs.2019.117251] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 12/27/2019] [Accepted: 12/28/2019] [Indexed: 02/05/2023]
Abstract
AIMS Heat shock protein 27 regulates homeostasis of skeletal and cardiac muscle proteins in various stressful states including diabetes and exercise. Aerobic exercise can inhibit or ameliorate cardiac structural abnormality and dysfunction in diabetic cardiomyopathy. The aim of this study was to evaluate the role of HSP27 in aerobic exercise improving cardiac diastolic dysfunction in type 2 diabetic rats. METHODS Forty male Sprague-Dawley rats were randomly divided into the following groups: control, control + aerobic exercise, diabetic, and diabetic + aerobic exercise. Diabetes was induced by feeding with a high-fat high-sugar diet for 7-weeks followed by a single intraperitoneal injection of streptozotocin (30 mg/kg) in male rats. Moderate aerobic exercise training was performed on a treadmill for 8 weeks after induction of diabetes. KEY FINDINGS Aerobic exercise increased left ventricular end-diastolic internal diameter, left ventricular end-diastolic volume, myocardial HSP27 protein expression, HSP27-S82 phosphorylation levels, pHSP27-titin binding and improved cardiac muscle fibre alignment in diabetic rats. SIGNIFICANCE Our study indicates that moderate aerobic exercise increases HSP27 activation, improves cardiomyocyte fibre alignment and restores cardiac diastolic function.
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Affiliation(s)
- Shunchang Li
- Institute of Sports Medicine and Health, Chengdu Sport University, Chengdu 610041, China
| | - Min Liang
- Institute of Sports Medicine and Health, Chengdu Sport University, Chengdu 610041, China
| | - Yanrong Pan
- Institute of Sports Medicine and Health, Chengdu Sport University, Chengdu 610041, China
| | - Manda Wang
- Institute of Sports Medicine and Health, Chengdu Sport University, Chengdu 610041, China
| | - Derun Gao
- Institute of Sports Medicine and Health, Chengdu Sport University, Chengdu 610041, China
| | - Huayu Shang
- School of Sports Medicine and Health, Chengdu Sport University, Chengdu 610041, China
| | - Quansheng Su
- School of Sports Medicine and Health, Chengdu Sport University, Chengdu 610041, China
| | - Ismail Laher
- Department of Pharmacology and Therapeutics, Faculty of Medicine, University of British Columbia, Vancouver, BC V6T 1Z3, Canada.
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Serum Fibroblast Growth Factor 19 and Total Bile Acid Concentrations Are Potential Biomarkers of Hepatocellular Carcinoma in Patients with Type 2 Diabetes Mellitus. BIOMED RESEARCH INTERNATIONAL 2020; 2020:1751989. [PMID: 32104677 PMCID: PMC7036095 DOI: 10.1155/2020/1751989] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 12/30/2019] [Accepted: 01/13/2020] [Indexed: 12/14/2022]
Abstract
Purpose Type 2 diabetes mellitus (T2DM) carries a high risk of hepatocellular carcinoma (HCC). Both serum fibroblast growth factor 19 (FGF19) and bile acid concentrations are associated with T2DM and HCC. We aimed at evaluating the relationships between FGF19 and bile acid concentrations and HCC in patients with T2DM. Methods Twenty-seven healthy volunteers (control group), 27 patients with T2DM (T2DM group), 16 patients with newly diagnosed HCC (HCC group), and 10 T2DM patients with newly diagnosed HCC (T2DM-HCC group) were studied at the Affiliated Hospital of Nantong University between June 2016 and June 2017. The serum concentrations of serum FGF19 and total bile acids (TBA) were measured in all the participants. Correlation analysis and multiple stepwise regression analysis of the FGF19 and TBA concentrations were performed in all the participants and in the four groups. Results The concentrations of FGF19 were 220.5 pg/ml, 185.1 pg/ml, 115.8 pg/ml, and 70.4 pg/ml in the HCC, T2DM-HCC, control, and T2DM groups, respectively (p < 0.001), and the TBA concentrations were 21.75 μmol/l, 14.25 μmol/l, 14.25 μmol/l, 14.25 μmol/l, 14.25 p < 0.001), and the TBA concentrations were 21.75 r = 0.777; p < 0.001), and the TBA concentrations were 21.75 r = 0.777; p < 0.001), and the TBA concentrations were 21.75 r = 0.777; p < 0.001), and the TBA concentrations were 21.75 r = 0.777; p < 0.001), and the TBA concentrations were 21.75 r = 0.777; p < 0.001), and the TBA concentrations were 21.75 Conclusions Simultaneous increase of serum FGF19 and TBA levels may be used as indicators of HCC screening at early stage in patients with T2DM.
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Qin L, Zhang X, Zhou X, Wu X, Huang X, Chen M, Wu Y, Lu S, Zhang H, Xu X, Wei X, Zhang S, Huang R. Protective Effect of Benzoquinone Isolated from the Roots of Averrhoa carambola L. on Streptozotocin-Induced Diabetic Mice by Inhibiting the TLR4/NF-κB Signaling Pathway. Diabetes Metab Syndr Obes 2020; 13:2129-2138. [PMID: 32606871 PMCID: PMC7319517 DOI: 10.2147/dmso.s241998] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 05/19/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Studies have demonstrated that the roots of Averrhoa carambola L. (Oxalidaceae), a traditional Chinese medicine, can be used to treat diabetes and diabetes-related diseases. Nevertheless, the potential beneficial effects and mechanism of benzoquinone isolated from the roots of Averrhoa carambola L. (BACR) on diabetes remain unclear. METHODS Diabetic Kunming mice were injected with STZ (120 mgkg-1) in the tail vein. Fasting blood glucose (FBG) and the change of body weight were measured after oral administration of BACR (120, 60, 30 mg/kg/d) every week. The levels of the total cholesterol (TC), triglyceride (TG), free fatty acids (FFA), glucosylated hemoglobin (GHb), fasting insulin (FINS), tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) were measured. The histological examination of pancreatic tissues and the TLR4/NF-κB pathway was analyzed by RT-PCR, immunohistochemistry and Western blot. RESULTS The study found that clearly the BACR obviously reduced the blood glucose, serum lipids, GHb and FINS. In addition, BACR treatment markedly reduced the release of inflammatory factors, including IL-6 and TNF-α, and down-regulated the expression of the TLR4/NF-κB pathway. CONCLUSION BACR has potential benefits for the treatment of diabetes by ameliorating metabolic functions and attenuating the inflammatory response via inhibition of the activation of theTLR4/NF-κB pathway.
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Affiliation(s)
- Luhui Qin
- Pharmaceutical College, Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
- Center for Translational Medicine, Key Laboratory of Longevity and Aging-Related Diseases, Ministry of Education, School of Preclinical Medicine, Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Xiaolin Zhang
- Pharmaceutical College, Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Xing Zhou
- Pharmaceutical College, Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Xingchun Wu
- Pharmaceutical College, Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Xiang Huang
- Pharmaceutical College, Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Ming Chen
- Pharmaceutical College, Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Yani Wu
- Pharmaceutical College, Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Shunyu Lu
- Pharmaceutical College, Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Hongliang Zhang
- Pharmaceutical College, Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Xiaohui Xu
- Pharmaceutical College, Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Xiaojie Wei
- Pharmaceutical College, Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Shijun Zhang
- Pharmaceutical College, Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Renbin Huang
- Pharmaceutical College, Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
- Correspondence: Renbin Huang; Shijun Zhang Pharmaceutical College, Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region530021, People’s Republic of ChinaTel +86 771 533 9805Fax +86 771 535 8272 Email ;
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Zhang Q, Hu N. Effects of Metformin on the Gut Microbiota in Obesity and Type 2 Diabetes Mellitus. Diabetes Metab Syndr Obes 2020; 13:5003-5014. [PMID: 33364804 PMCID: PMC7751595 DOI: 10.2147/dmso.s286430] [Citation(s) in RCA: 95] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 11/26/2020] [Indexed: 12/12/2022] Open
Abstract
Metformin is a first-line treatment for type 2 diabetes mellitus (T2DM); however, its underlying mechanism is not fully understood. Gut microbiota affect the development and progression of T2DM. In recent years, an increasing number of studies has focused on the relationship between metformin and gut microbiota, suggesting that metformin might exert part of its hypoglycemic effect through these microbes. However, most of these results were not consistent due to the complex composition of the microbiota, the differences between species, the large variation between individuals, and the differences in experimental design, bringing great obstacle for our better understanding of the effects of metformin on the gut microbiota. Here, we reviewed the published papers concerning about the impacts of metformin on the gut microbiota of mice, rats, and humans with obesity or T2DM, and summarized the changes of gut microbiota composition caused by metformin and the possible underlying hypoglycemic mechanism which is related to gut microbiota. It was found that the proportions of some microbiota, such as phyla Bacteroidetes and Verrucomicrobia and genera Akkermansia, Bacteroides and Escherichia, were significantly affected by metformin in several studies. Metformin may exert part of hypoglycemic effects by altering the gut microbiota in ways that maintain the integrity of the intestinal barrier, promote the production of short-chain fatty acids (SCFAs), regulate bile acid metabolism, and improve glucose homeostasis.
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Affiliation(s)
- Qi Zhang
- Department of Pharmacy, Changzhou No.7 People’s Hospital, Changzhou213000, People’s Republic of China
| | - Nan Hu
- Department of Pharmacy, The Third Affiliated Hospital of Soochow University, Changzhou213000, People’s Republic of China
- Correspondence: Nan Hu Department of Pharmacy, The Third Affiliated Hospital of Soochow University, Changzhou213000, People’s Republic of ChinaTel +86-519-68870870 Email
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