1
|
Wu C, Gao F, Jia J, Guo L, Zhang C, Qian JY. Effect of superheated steam treatment on enzyme inactivation, morphostructural, physicochemical and digestion properties of sand rice (Agriophyllum squarrosum) flour. Food Chem 2024; 450:139336. [PMID: 38640540 DOI: 10.1016/j.foodchem.2024.139336] [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: 11/22/2023] [Revised: 03/30/2024] [Accepted: 04/09/2024] [Indexed: 04/21/2024]
Abstract
The lipase (LA) and peroxidase (POD) activities, as well as morphological structure, physicochemical and digestion properties of sand rice flour (SRF) treated with superheated steam (SS), were investigated. SS treatment at 165 °C completely deactivated LA and resulted in a 98% deactivation of POD activities in SRF. This treatment also intensified gelatinization, induced noticeable color alterations, and decreased pasting viscosities. Furthermore, there was a moderate reduction in crystal structure, lamellar structure, and short-range ordered structure, with a pronounced reduction at temperatures exceeding 170 °C. These alterations significantly impacted SRF digestibility, leading to increased levels of rapidly digestible starch (RDS) and resistant starch (RS), with the highest RS content achieved at 165 °C. The effectiveness of SS treatment depends on temperature, with 165 °C being able to stabilize SRF with moderate changes in color and structure. These findings will provide a scientific foundation for SS applicated in SRF stabilization and modification.
Collapse
Affiliation(s)
- Chunsen Wu
- School of Food Science and Engineering, Yangzhou University, 196 Huayangxi Road, Yangzhou 225127, PR China
| | - Fan Gao
- School of Food Science and Engineering, Yangzhou University, 196 Huayangxi Road, Yangzhou 225127, PR China
| | - Juan Jia
- School of Food Science and Engineering, Yangzhou University, 196 Huayangxi Road, Yangzhou 225127, PR China
| | - Lunan Guo
- School of Food Science and Engineering, Yangzhou University, 196 Huayangxi Road, Yangzhou 225127, PR China
| | - Chen Zhang
- School of Food Science and Engineering, Yangzhou University, 196 Huayangxi Road, Yangzhou 225127, PR China
| | - Jian-Ya Qian
- School of Food Science and Engineering, Yangzhou University, 196 Huayangxi Road, Yangzhou 225127, PR China.
| |
Collapse
|
2
|
Zhang Z, Deng X, Chen R, Li Q, Sun L, Cao J, Lai Z, Lai X, Wang Z, Sun S, Zhang L. Effect of Black Tea Polysaccharides on Alleviating Type 2 Diabetes Mellitus by Regulating PI3K/Akt/GLUT2 Pathway. Foods 2024; 13:1908. [PMID: 38928848 PMCID: PMC11203343 DOI: 10.3390/foods13121908] [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: 05/10/2024] [Revised: 06/04/2024] [Accepted: 06/08/2024] [Indexed: 06/28/2024] Open
Abstract
The bioactivity of tea polysaccharides (TPs) has been widely reported, but studies to date have focused on green tea. Some human health investigations have implied that black tea may possess potential antidiabetic effects, but less is known about their potential role and related antidiabetic mechanism. The present study was, therefore, conducted to investigate the chemical properties and antidiabetic activity of TPs from black tea. Monosaccharide composition revealed that Alduronic acid (77.8 mol%) considerably predominated in the fraction. TP conformation analysis indicated that three components in TPs were all typical of high-branching structures. Oral administration of TPs could effectively alleviate fasting blood glucose in type 2 diabetes mellitus (T2D) mice, with the values 23.6 ± 1.42, 19.6 ± 2.25, and 16.4 ± 2.07 mmol/L in the 200, 400, and 800 mg/kg·BW groups, respectively. Among these TPs groups, the 800 mg/kg·BW groups significantly decreased by 37.88% when compared with the T2D+water group (p < 0.05). Further studies demonstrated that TP treatment upregulated the expression of p-Akt/p-PI3K (p < 0.001). Additionally, TP treatment significantly promoted glucose transporter protein 2 (GLUT2) translocation in the liver (p < 0.001). These findings suggest that TPs from black tea protect against T2D by activating PI3K/Akt/GLUT2 signaling and might serve as a novel therapeutic candidate for T2D.
Collapse
Affiliation(s)
- Zhenbiao Zhang
- Department of Tea Science, College of Horticulture, South China Agricultural University, Guangzhou 510641, China; (Z.Z.); (X.D.)
- Tea Research Institute, Guangdong Academy of Agricultural Sciences, Guangdong Key Laboratory of Tea Resources Innovation & Utilization, Guangzhou 510640, China; (R.C.); (Q.L.); (L.S.); (J.C.); (Z.L.); (X.L.)
| | - Xuming Deng
- Department of Tea Science, College of Horticulture, South China Agricultural University, Guangzhou 510641, China; (Z.Z.); (X.D.)
| | - Ruohong Chen
- Tea Research Institute, Guangdong Academy of Agricultural Sciences, Guangdong Key Laboratory of Tea Resources Innovation & Utilization, Guangzhou 510640, China; (R.C.); (Q.L.); (L.S.); (J.C.); (Z.L.); (X.L.)
| | - Qiuhua Li
- Tea Research Institute, Guangdong Academy of Agricultural Sciences, Guangdong Key Laboratory of Tea Resources Innovation & Utilization, Guangzhou 510640, China; (R.C.); (Q.L.); (L.S.); (J.C.); (Z.L.); (X.L.)
| | - Lingli Sun
- Tea Research Institute, Guangdong Academy of Agricultural Sciences, Guangdong Key Laboratory of Tea Resources Innovation & Utilization, Guangzhou 510640, China; (R.C.); (Q.L.); (L.S.); (J.C.); (Z.L.); (X.L.)
| | - Junxi Cao
- Tea Research Institute, Guangdong Academy of Agricultural Sciences, Guangdong Key Laboratory of Tea Resources Innovation & Utilization, Guangzhou 510640, China; (R.C.); (Q.L.); (L.S.); (J.C.); (Z.L.); (X.L.)
| | - Zhaoxiang Lai
- Tea Research Institute, Guangdong Academy of Agricultural Sciences, Guangdong Key Laboratory of Tea Resources Innovation & Utilization, Guangzhou 510640, China; (R.C.); (Q.L.); (L.S.); (J.C.); (Z.L.); (X.L.)
| | - Xingfei Lai
- Tea Research Institute, Guangdong Academy of Agricultural Sciences, Guangdong Key Laboratory of Tea Resources Innovation & Utilization, Guangzhou 510640, China; (R.C.); (Q.L.); (L.S.); (J.C.); (Z.L.); (X.L.)
| | - Zaihua Wang
- Environmental Horticulture Research Institute, Guangdong Academy of Agricultural Sciences, Guangdong Provincial Key Lab of Ornamental Plant Germplasm Innovation and Utilization, Guangzhou 510640, China;
| | - Shili Sun
- Tea Research Institute, Guangdong Academy of Agricultural Sciences, Guangdong Key Laboratory of Tea Resources Innovation & Utilization, Guangzhou 510640, China; (R.C.); (Q.L.); (L.S.); (J.C.); (Z.L.); (X.L.)
| | - Lingzhi Zhang
- Department of Tea Science, College of Horticulture, South China Agricultural University, Guangzhou 510641, China; (Z.Z.); (X.D.)
| |
Collapse
|
3
|
Su J, Tang L, Luo Y, Xu J, Ouyang S. Research progress on drugs for diabetes based on insulin receptor/insulin receptor substrate. Biochem Pharmacol 2023; 217:115830. [PMID: 37748666 DOI: 10.1016/j.bcp.2023.115830] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 09/21/2023] [Accepted: 09/22/2023] [Indexed: 09/27/2023]
Abstract
The number of people with diabetes worldwide is increasing annually, resulting in a serious economic burden. Insulin resistance is a major pathology in the early onset of diabetes mellitus, and therefore, related drug studies have attracted research attention. The insulin receptor/insulin receptor substrate (INSR/IRS) serves as the primary conduit in the insulin signal transduction cascade, and dysregulation of this pathway can lead to insulin resistance. Currently, there exist a plethora of hypoglycemic drugs in the market; however, drugs that specifically target INSR/IRS are comparatively limited. The literature was collected by direct access to the PubMed database, and was searched using the terms "diabetes mellitus; insulin resistance; insulin receptor; insulin receptor substrate; diabetes drug" as the main keywords for literature over the last decade. This article provides a comprehensive analysis of the structure and function of INSR and IRS proteins, as well as the drugs used for the treatment of diabetes. Additionally, it serves as a valuable reference for the advancement of novel therapeutic agents for diabetes management.
Collapse
Affiliation(s)
- Jingqian Su
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, College of Life Sciences, Fujian Normal University, Fuzhou 350117, China; Key Laboratory of Microbial Pathogenesis and Interventions of Fujian Province University, College of Life Sciences, Fujian Normal University, Fuzhou 350117, China.
| | - Lu Tang
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, College of Life Sciences, Fujian Normal University, Fuzhou 350117, China; Key Laboratory of Microbial Pathogenesis and Interventions of Fujian Province University, College of Life Sciences, Fujian Normal University, Fuzhou 350117, China
| | - Yingsheng Luo
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, College of Life Sciences, Fujian Normal University, Fuzhou 350117, China; Key Laboratory of Microbial Pathogenesis and Interventions of Fujian Province University, College of Life Sciences, Fujian Normal University, Fuzhou 350117, China
| | - Jingran Xu
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, College of Life Sciences, Fujian Normal University, Fuzhou 350117, China; Key Laboratory of Microbial Pathogenesis and Interventions of Fujian Province University, College of Life Sciences, Fujian Normal University, Fuzhou 350117, China
| | - Songying Ouyang
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, College of Life Sciences, Fujian Normal University, Fuzhou 350117, China; Key Laboratory of Microbial Pathogenesis and Interventions of Fujian Province University, College of Life Sciences, Fujian Normal University, Fuzhou 350117, China; Key Laboratory of OptoElectronic Science and Technology for Medicine of the Ministry of Education, Fujian Normal University, Fuzhou 350117, China.
| |
Collapse
|
4
|
Chen X, Liu C, Zhang Y, Shao R, He J, Huang W, Liu Z. Regulating effects of phytosterol esters-loaded emulsions stabilized with green tea polysaccharide conjugates and Tween on lipids in KKAy mice. Int J Biol Macromol 2023:125235. [PMID: 37290551 DOI: 10.1016/j.ijbiomac.2023.125235] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 05/23/2023] [Accepted: 06/04/2023] [Indexed: 06/10/2023]
Abstract
Phytosterol esters (PSE) have been shown to have cholesterol-lowering effects, but their insolubility in water limits their applications. Green tea polysaccharide conjugates (gTPC) have hypoglycemic and emulsifying effects. To address lipid dysregulation in diabetic patients, we developed PSE-loaded emulsions stabilized with gTPC and Tween-20 (gTPC-PSE emulsions) and evaluated their physicochemical properties. We subsequently investigated the lipid-regulating potential of these emulsions to in KKAy mice. The KKAy mice were randomly assigned to eight groups: the model group, the Lipitor (10 mg·kg-1)-acarbose (30 mg·kg-1) combination group, two gTPC groups, two PSE groups, and two gTPC-PSE groups with a 1:2 mass ratio of gTPC to PSE. The administered doses were 90 and 270 mg kg-1, respectively. Administration of a 270 mg·kg-1 dose of gTPC-PSE emulsions led to the most significant effects including increased levels of liver and serum high-density lipoprotein cholesterol (HDL-CH), reduced serum leptin and insulin, and improved liver superoxide dismutase (SOD) and reduced malondialdehyde (MDA). In general, gTPC and PSE demonstrated a synergistic effect on lipid regulation in mice. Our results indicate that gTPC-PSE emulsions hold potential as a nutritional intervention for diabetes by modulating lipid levels.
Collapse
Affiliation(s)
- Xiaoqiang Chen
- Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan 430068, China.
| | - Caixia Liu
- Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan 430068, China
| | - Yuxue Zhang
- Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan 430068, China
| | - Ruixiang Shao
- Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan 430068, China
| | - Jun He
- Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan 430068, China
| | - Wei Huang
- Hubei Institute for Drug Control, Wuhan 430075, China
| | - Zhong Liu
- Hubei August Flower Food Co. LTD, Xianning 437000, China
| |
Collapse
|
5
|
Liang Y, Jiao D, Du X, Zhou J, Degen AA, Ran F, Sun G, Ji K, Wu X, Cheng X, Ma X, Qian C, Yang G. Effect of dietary Agriophyllum squarrosum on average daily gain, meat quality and muscle fatty acids in growing Tan lambs. Meat Sci 2023; 201:109195. [PMID: 37119717 DOI: 10.1016/j.meatsci.2023.109195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 03/27/2023] [Accepted: 04/13/2023] [Indexed: 05/01/2023]
Abstract
The herb A. squarrosum is reputed to possess medicinal properties for humans, and has the potential to be a feed resource for livestock. We hypothesized that this herb would improve the meat quality of lambs. To test this hypothesis, 24 Tan ewe-lambs (27.7 ± 0.45 kg) were offered diets containing 0 (CON), 100 (AS100), 200 (AS200) and 300 (AS300) g A. squarrosum/kg DM, and average daily gain, carcass traits, blood metabolites, meat quality and fatty acid profiles were determined. Drip loss % and cooking loss % decreased with the AS100 and AS200 diets (P < 0.05). Dietary A. squarrosum reduced muscle fiber area and diameter and increased density of the meat (P < 0.05), which indicated that the meat was more tender. The concentrations of C10:0 and C18:1n-9 t were 1ower and of C17:0 and C18:3n-3 were greater in the AS200 and AS300 treatments than CON (P < 0.05). Our results suggest that feeding lambs up to 200 g/kg DM of A. squarrosum can increase the water-holding capacity and L* value of meat without compromising growth. Further research is needed to determine the optimal level.
Collapse
Affiliation(s)
- Yanping Liang
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Gansu Province, Department of Ecology and Agriculture Research, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Dan Jiao
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Gansu Province, Department of Ecology and Agriculture Research, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xia Du
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Gansu Province, Department of Ecology and Agriculture Research, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jianwei Zhou
- College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Abraham Allan Degen
- Desert Animal Adaptations and Husbandry, Wyler Department of Dryland Agriculture, Blaustein Institutes for Desert Research, Ben-Gurion University of Negev, Beer Sheva l8410500, Israel
| | - Fu Ran
- Pratacultural College, Gansu Agricultural University, Lanzhou 730070, China
| | - Guancong Sun
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Gansu Province, Department of Ecology and Agriculture Research, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Kaixi Ji
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Gansu Province, Department of Ecology and Agriculture Research, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiukun Wu
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Gansu Province, Department of Ecology and Agriculture Research, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Xindong Cheng
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Gansu Province, Department of Ecology and Agriculture Research, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaofei Ma
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Gansu Province, Department of Ecology and Agriculture Research, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Chaoju Qian
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Gansu Province, Department of Ecology and Agriculture Research, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Guo Yang
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Gansu Province, Department of Ecology and Agriculture Research, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; Dongying Yellow River Delta Biogenetic and Molecular Precision Breeding Laboratory, Dongying 257092, China; Shandong Huakun Rural Revitalization Institute Co., LTD, Dongying 250014, China.
| |
Collapse
|
6
|
Supplementing Diets with Agriophyllum squarrosum Reduced Blood Lipids, Enhanced Immunity and Anti-Inflammatory Capacities, and Mediated Lipid Metabolism in Tan Lambs. Animals (Basel) 2022; 12:ani12243486. [PMID: 36552407 PMCID: PMC9774518 DOI: 10.3390/ani12243486] [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: 10/17/2022] [Revised: 11/19/2022] [Accepted: 12/01/2022] [Indexed: 12/14/2022] Open
Abstract
Agriophyllum squarrosum (sand rice), a widespread desert plant, possesses anti-hyperglycemic and anti-inflammatory properties, and has been used in traditional Chinese medicine for many years. However, its effects on ruminants are unknown. To fill this gap, we examined the effects of A. squarrosum on the immune and anti-inflammatory responses of lambs. A total of 23, 6-month-old Tan ewe-lambs (27.6 ± 0.47 kg) were divided into four groups and offered a basic diet (C—control), or a diet that contained 10%, 20%, or 30% A. squarrosum, on a dry matter basis, for 128 days. Serum concentrations of total cholesterol were lower (p = 0.004) in the 30% supplemented lambs than controls, while concentrations of high-density lipoprotein cholesterol were lower (p = 0.006) in the 10% and 20%, but not in 30% supplemented lambs than controls. Serum-cortisol concentrations were lower (p = 0.012) in the 30% supplemented lambs and free fatty acid concentrations were higher in the 10% and 20% supplemented lambs than in control lambs (p < 0.001). Supplementation with A. squarrosum decreased (p < 0.05) the area of adipocytes in subcutaneous adipose tissue, but there was no difference between the 20% and 30% diets. Conversely, the area in visceral adipose tissue (VAT) increased (p < 0.05), especially for the 10% and 20% supplemented diets. Supplementation with A. squarrosum also enriched immune and anti-inflammatory related and lipid and glucose-metabolic pathways and associated differentially expressed gene expressions in adipose tissue. A total of 10 differential triacylglycerol, 34 differential phosphatidylcholines and seven differential phosphatidylethanolamines decreased in the diet with 30% supplementation, when compared to the other diets. Finally, adipocyte-differentiation genes, and immune and inflammatory response-related gene expression levels decreased in lamb adipocytes cultured with an aqueous A. squarrosum extract. In conclusion, supplementing lamb diets with A. squarrosum reduced blood lipids, enhanced immunity and anti-inflammatory capacities, and mediated lipid metabolism in adipose tissue and adipocytes of Tan lambs. A level of approximately 10% is recommended, but further research is required to determine the precise optimal level.
Collapse
|
7
|
Fang T, Zhou S, Qian C, Yan X, Yin X, Fan X, Zhao P, Liao Y, Shi L, Chang Y, Ma XF. Integrated metabolomics and transcriptomics insights on flavonoid biosynthesis of a medicinal functional forage, Agriophyllum squarrosum (L.), based on a common garden trial covering six ecotypes. FRONTIERS IN PLANT SCIENCE 2022; 13:985572. [PMID: 36204072 PMCID: PMC9530573 DOI: 10.3389/fpls.2022.985572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 08/22/2022] [Indexed: 06/16/2023]
Abstract
Agriophyllum squarrosum (L.) Moq., well known as sandrice, is an important wild forage in sandy areas and a promising edible and medicinal resource plant with great domestication potential. Previous studies showed flavonoids are one of the most abundant medicinal ingredients in sandrice, whereby isorhamnetin and isorhamnetin-3-glycoside were the top two flavonols with multiple health benefits. However, the molecular regulatory mechanisms of flavonoids in sandrice remain largely unclear. Based on a common garden trial, in this study, an integrated transcriptomic and flavonoids-targeted metabolomic analysis was performed on the vegetative and reproductive periods of six sandrice ecotypes, whose original habitats covered a variety of environmental factor gradients. Multiple linear stepwise regression analysis unveiled that flavonoid accumulation in sandrice was positively correlated with temperature and UVB and negatively affected by precipitation and sunshine duration, respectively. Weighted co-expression network analysis (WGCNA) indicated the bHLH and MYB transcription factor (TF) families might play key roles in sandrice flavonoid biosynthesis regulation. A total of 22,778 differentially expressed genes (DEGs) were identified between ecotype DL and ecotype AEX, the two extremes in most environmental factors, whereby 85 DEGs could be related to known flavonoid biosynthesis pathway. A sandrice flavonoid biosynthesis network embracing the detected 23 flavonoids in this research was constructed. Gene families Plant flavonoid O-methyltransferase (AsPFOMT) and UDP-glucuronosyltransferase (AsUGT78D2) were identified and characterized on the transcriptional level and believed to be synthases of isorhamnetin and isorhamnetin-3-glycoside in sandrice, respectively. A trade-off between biosynthesis of rutin and isorhamnetin was found in the DL ecotype, which might be due to the metabolic flux redirection when facing environmental changes. This research provides valuable information for understanding flavonoid biosynthesis in sandrice at the molecular level and laid the foundation for precise development and utilization of this functional resource forage.
Collapse
Affiliation(s)
- Tingzhou Fang
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Department of Ecology and Agriculture Research, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China
| | - Shanshan Zhou
- Faculty of Environmental Science and Engineering, Shanxi Institute of Science and Technology, Jincheng, China
| | - Chaoju Qian
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Department of Ecology and Agriculture Research, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China
| | - Xia Yan
- Key Laboratory of Eco-Hydrology of Inland River Basin, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China
- Marsgreen Biotech Jiangsu Co., Ltd., Haian, China
| | - Xiaoyue Yin
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Department of Ecology and Agriculture Research, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China
| | - Xingke Fan
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Department of Ecology and Agriculture Research, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China
| | - Pengshu Zhao
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Department of Ecology and Agriculture Research, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China
| | - Yuqiu Liao
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Department of Ecology and Agriculture Research, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China
| | - Liang Shi
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Department of Ecology and Agriculture Research, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China
| | - Yuxiao Chang
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Xiao-Fei Ma
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Department of Ecology and Agriculture Research, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China
- Marsgreen Biotech Jiangsu Co., Ltd., Haian, China
| |
Collapse
|
8
|
Shu Y, Zou C, Cai Y, He Q, Wu X, Zhu H, Qv M, Chao Y, Xu C, Tang L, Wu X. Vitamin C deficiency induces hypoglycemia and cognitive disorder through S-nitrosylation-mediated activation of glycogen synthase kinase 3β. Redox Biol 2022; 56:102420. [PMID: 35969998 PMCID: PMC9399387 DOI: 10.1016/j.redox.2022.102420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 07/21/2022] [Indexed: 11/15/2022] Open
Abstract
Vitamin C (VC, l-ascorbic acid) is an essential nutrient that plays a key role in metabolism and functions as a potent antioxidant in regulating the S-nitrosylation and denitrosylation of target proteins. The precise function of VC deprivation in glucose homeostasis is still unknown. In the absence of L-gulono-1,4-lactone oxidoreductase, an essential enzyme for the last step of VC synthesis, VC deprivation resulted in persistent hypoglycemia and subsequent impairment of cognitive functions in female but not male mouse pups. The cognitive disorders caused by VC deprivation were largely reversed when these female pups were given glucose. VC deprivation-induced S-nitrosylation of glycogen synthase kinase 3β (GSK3β) at Cys14, which activated GSK3β and inactivated glycogen synthase to decrease glycogen synthesis and storage under the feeding condition, while VC deprivation inactivated glycogen phosphorylase to decrease glycogenolysis under the fasting condition, ultimately leading to hypoglycemia and cognitive disorders. Treatment with Nω-Nitro-l-arginine methyl ester (l-NAME), a specific inhibitor of nitric oxide synthase, on the other hand, effectively prevented S-nitrosylation and activation of GSK3β in female pups in response to the VC deprivation and reversed hypoglycemia and cognitive disorders. Overall, this research identifies S-nitrosylation of GSK3β and subsequent GSK3β activation as a previously unknown mechanism controlling glucose homeostasis in female pups in response to VC deprivation, implying that VC supplementation in the prevention of hypoglycemia and cognitive disorders should be considered in the certain groups of people, particularly young females.
Collapse
Affiliation(s)
- Yingying Shu
- Department of Endocrinology, The Children's Hospital of Zhejiang University School of Medicine, Hangzhou, 310053, China; National Clinical Research Center for Child Health, The Children's Hospital of Zhejiang University School of Medicine, Hangzhou, 310053, China
| | - Chaochun Zou
- Department of Endocrinology, The Children's Hospital of Zhejiang University School of Medicine, Hangzhou, 310053, China; National Clinical Research Center for Child Health, The Children's Hospital of Zhejiang University School of Medicine, Hangzhou, 310053, China.
| | - Yuqing Cai
- Department of Endocrinology, The Children's Hospital of Zhejiang University School of Medicine, Hangzhou, 310053, China; National Clinical Research Center for Child Health, The Children's Hospital of Zhejiang University School of Medicine, Hangzhou, 310053, China
| | - Qiangqiang He
- Department of Pharmacology, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Xiaowei Wu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Haibin Zhu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Meiyu Qv
- Department of Pharmacology, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Yunqi Chao
- Department of Endocrinology, The Children's Hospital of Zhejiang University School of Medicine, Hangzhou, 310053, China; National Clinical Research Center for Child Health, The Children's Hospital of Zhejiang University School of Medicine, Hangzhou, 310053, China
| | - Chengyun Xu
- National Clinical Research Center for Child Health, The Children's Hospital of Zhejiang University School of Medicine, Hangzhou, 310053, China; Department of Pharmacology, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Lanfang Tang
- National Clinical Research Center for Child Health, The Children's Hospital of Zhejiang University School of Medicine, Hangzhou, 310053, China
| | - Ximei Wu
- Department of Pharmacology, Zhejiang University School of Medicine, Hangzhou, 310058, China.
| |
Collapse
|
9
|
Bao S, Wang X, Ma Q, Wei C, Nan J, Ao W. Mongolian medicine in treating type 2 diabetes mellitus combined with nonalcoholic fatty liver disease via FXR/LXR-mediated P2X7R/NLRP3/NF-κB pathway activation. CHINESE HERBAL MEDICINES 2022; 14:367-375. [PMID: 36118003 PMCID: PMC9476729 DOI: 10.1016/j.chmed.2022.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 02/17/2022] [Accepted: 06/15/2022] [Indexed: 11/20/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) and nonalcoholic fatty liver disease (NAFLD) are the most problematic metabolic diseases in the world. NAFLD encompasses a spectrum of severity, ranging from simple steatosis to non-alcoholic steatohepatitis (NASH) and fibrosis, increasing the risk of cirrhosis and hepatocellular carcinoma. Importantly, NAFLD is closely linked to obesity and tightly interrelated with insulin resistance and T2DM. T2DM and NAFLD (T2DM-NAFLD) are called as the Xike Rixijing Disease and Tonglaga Indigestion Disease respectively, in Mongolian medicine. Xike Rixijing Disease maybe develop into Tonglaga Indigestion Disease. Forturnately many Mongolian medicines show efficient treatment of T2DM-NAFLD, such as Agriophyllum squarrosum, Haliyasu (dried powder of camel placenta), Digeda-4 (herbs of Lomatogonium carinthiacum, rhizomata of Coptis chinensis, ripe fruits of Gardenia jasminoides, herbs of Dianthus superbus), Guangmingyan Siwei Decoction Powder (Halite, ripe fruits of Terminalia chebula, rhizomata of Zingiber officinale, fruit clusters of Piper longum), Tonglaga-5 (ripe fruits of Punica granatum, barks of Cinnamomum cassia, ripe fruits of Amomum kravanh, fruit clusters of Piper longum, flowers of Carthamus tinctorius), Tegexidegeqi (rhizomata of Inula helenium, ripe fruits of Gardenia jasminoides, rhizomata of Platycodon grandiflorum, rhizomata of Coptis chinensis, heartwood of Caesalpinia sappan), Ligan Shiliu Bawei San (ripe fruits of Punica granatum, barks of Cinnamomum cassia, ripe fruits of Amomum kravanh, fruit clusters of Piper longum, flowers of Carthamus tinctorius, ripe fruits of Amomum tsao-ko, rhizomata of Zingiber officinale), etc. Principles of Mongolian medicine in treating diseases: by balancing “three essences or roots” and “seven elements”, strengthening liver and kidney function, transporting nutrients to enhance physical strength and disease resistance, and combined with drugs for comprehensive conditioning treatment. However, their molecular mechanisms remain unclear. In this review, we prospect that Mongolian medicines might be a promising treatment for T2DM-NAFLD by activating P2X7R/NLRP3/NF-κB inflammatory pathway via lipid-sensitive nuclear receptors (i.e., FXR and LXR).
Collapse
Affiliation(s)
- Shuyin Bao
- Institute of Pharmaceutical Chemistry and Pharmacology, Inner Mongolia Minzu University, Tongliao 028000, China
- Inner Mongolia Key Laboratory of Mongolian Medicine Pharmacology for Cardio-Cerebral Vascular System, Tongliao 028000, China
- Jilin Key Laboratory for Traditional Chinese Korean Medicine, College of Pharmacy, Yanbian University, Yanji 133002, China
| | - Xiuzhi Wang
- Department of Medicines and Foods, Tongliao Vocational College, Tongliao 028000, China
| | - Qianqian Ma
- Institute of Pharmaceutical Chemistry and Pharmacology, Inner Mongolia Minzu University, Tongliao 028000, China
- Inner Mongolia Key Laboratory of Mongolian Medicine Pharmacology for Cardio-Cerebral Vascular System, Tongliao 028000, China
| | - Chengxi Wei
- Institute of Pharmaceutical Chemistry and Pharmacology, Inner Mongolia Minzu University, Tongliao 028000, China
- Inner Mongolia Key Laboratory of Mongolian Medicine Pharmacology for Cardio-Cerebral Vascular System, Tongliao 028000, China
- Corresponding authors.
| | - Jixing Nan
- Jilin Key Laboratory for Traditional Chinese Korean Medicine, College of Pharmacy, Yanbian University, Yanji 133002, China
- Corresponding authors.
| | - Wuliji Ao
- Research and development center, Inner Mongolia Research Institute of Traditional Mongolian Medicine Engineering Technology, Tongliao 028000, China
- Mongolian Medicine R&D National Local Union Engineering Research Center, Inner Mongolia Minzu University, Tongliao 028000, China
- Corresponding authors.
| |
Collapse
|
10
|
Zhao P, Li X, Sun H, Zhao X, Wang X, Ran R, Zhao J, Wei Y, Liu X, Chen G. Healthy values and de novo domestication of sand rice ( Agriophyllum squarrosum), a comparative view against Chenopodium quinoa. Crit Rev Food Sci Nutr 2021:1-22. [PMID: 34755571 DOI: 10.1080/10408398.2021.1999202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Sand rice (Agriophyllum squarrosum) is prized for its well-balanced nutritional properties, broad adaptability in Central Asia and highly therapeutic potentials. It has been considered as a potential climate-resilient crop. Its seed has comparable metabolite profile with Chenopodium quinoa and is rich in proteins, essential amino acids, minerals, polyunsaturated fatty acids, and phenolics, but low in carbohydrates. Phenolics like protocatechuic acid and quercetins have been characterized with biological functions on regulation of lipid and glucose metabolism in addition to anti-inflammatory and antioxidant activities. Sand rice is thus an important source for developing functional and nutraceutical products. Though historical consumption has been over 1300 years, sand rice has undergone few agronomic improvements until recently. Breeding by individual selection has been performed and yield of the best genotype can reach up to 1295.5 kg/ha. Furthermore, chemical mutagenesis has been used to modify the undesirable traits and a case study of a dwarf line (dwarf1), which showed the Green Revolution-like phenotypes, is presented. Utilization of both breeding methodologies will accelerate its domestication process. As a novel crop, sand rice research is rather limited compared with quinoa. More scientific input is urgently required if the nutritional and commercial potentials are to be fully realized.
Collapse
Affiliation(s)
- Pengshan Zhao
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Gansu Province, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, P.R, China.,Shapotou Desert Research & Experiment Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, P.R. China
| | - Xiaofeng Li
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Gansu Province, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, P.R, China.,University of Chinese Academy of Sciences, Beijing, P.R. China
| | - Hong Sun
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Gansu Province, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, P.R, China.,University of Chinese Academy of Sciences, Beijing, P.R. China
| | - Xin Zhao
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Gansu Province, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, P.R, China
| | - Xiaohua Wang
- Key Laboratory of Ecohydrology of Inland River Basin, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, P.R. China
| | - Ruilan Ran
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Gansu Province, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, P.R, China.,University of Chinese Academy of Sciences, Beijing, P.R. China
| | - Jiecai Zhao
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Gansu Province, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, P.R, China.,Shapotou Desert Research & Experiment Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, P.R. China
| | - Yuming Wei
- Animal Husbandry Pasture and Green Agriculture Institute of Gansu Academy of Agricultural Sciences, Lanzhou, P.R. China
| | - Xin Liu
- School of Life Sciences, Zhengzhou University, Zhengzhou, Henan, P.R. China
| | - Guoxiong Chen
- Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions, Gansu Province, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, P.R, China.,Shapotou Desert Research & Experiment Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, P.R. China
| |
Collapse
|
11
|
Bao S, Wang X, Cho SB, Wu YL, Wei C, Han S, Bao L, Wu Q, Ao W, Nan JX. Agriophyllum Oligosaccharides Ameliorate Diabetic Insulin Resistance Through INS-R/IRS/Glut4-Mediated Insulin Pathway in db/db Mice and MIN6 Cells. Front Pharmacol 2021; 12:656220. [PMID: 34497509 PMCID: PMC8419282 DOI: 10.3389/fphar.2021.656220] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 07/21/2021] [Indexed: 12/25/2022] Open
Abstract
We have previously reported that Agriophyllum oligosaccharides (AOS) significantly enhance glycemic control by increasing the activation of insulin receptor (INS-R), insulin receptor substrate-2 (IRS-2), phosphatidylinositol 3 kinase (PI3K), protein kinase B (AKT), peroxisome proliferator-activated receptor (PPAR)-γ, and glucose transporter 4 (Glut4) proteins in hepatic tissues. However, the effect of glucose control by AOS on the regulation of pancreatic tissues in db/db mice and MIN6 cells remains to be determined. An oral dose of AOS (380 or 750 mg/kg) was administered to type-2 diabetic db/db mice for 8 weeks to determine whether AOS regulates glucose by the INS-R/IRS/Glut4-mediated insulin pathway. Meanwhile, the effects of AOS on glucose uptake and its related signaling pathway in MIN6 cells were also investigated. The results showed that the random blood glucose (RBG) level in the AOS-treated group was lower than that in the control group. AOS reduced the levels of glycated hemoglobin (HbA1c) and free fatty acid (FFA) and significantly improved the pathological changes in the pancreatic tissues in db/db mice. Moreover, immunohistochemical analysis revealed that the expression of INS-R, IRS-1, IRS-2, and Glut4 was increased in the AOS-treated group than in the model group. Further, in vitro experiments using MIN6 cells showed that AOS regulated INS-R, IRS-1, IRS-2, and Glut4 protein and mRNA levels and attenuated insulin resistance and cell apoptosis. The results of both in vitro and in vivo experiments were comparable. Ultra-performance liquid chromatography coupled with time-of-flight mass spectrometric analysis of AOS with precolumn derivatization with 3-amino-9-ethylcarbazole (AEC) tentatively identified five types of sugars: glucose, lactose, rutinose, glucuronic acid, and maltotriose. Our present study clearly showed that AOS is efficacious in preventing hyperglycemia, possibly by increasing insulin sensitivity and improving IR by regulating the INS-R/IRS/Glut4 insulin signal pathway. Therefore, AOS may be considered as a potential drug for diabetes treatment.
Collapse
Affiliation(s)
- Shuyin Bao
- Key Laboratory for Traditional Chinese Korean Medicine of Jilin Province, College of Pharmacy, Yanbian University, Yanji, China.,Medical College, Inner Mongolia University for Nationalities, Tongliao, China
| | - Xiuzhi Wang
- Department of Medicines and Foods, Tongliao Vocational College, Tongliao, China.,The Research Institute of Traditional Mongolian Medicine Engineering Technology, Tongliao, China
| | - Sung Bo Cho
- College of Traditional Mongolian Medicine, Inner Mongolia University for Nationalities, Tongliao, China
| | - Yan-Ling Wu
- Key Laboratory for Traditional Chinese Korean Medicine of Jilin Province, College of Pharmacy, Yanbian University, Yanji, China
| | - Chengxi Wei
- Medical College, Inner Mongolia University for Nationalities, Tongliao, China
| | - Shuying Han
- Basic Medical College, North China University of Science and Technology, Tangshan, China
| | - Liming Bao
- College of Traditional Mongolian Medicine, Inner Mongolia University for Nationalities, Tongliao, China
| | - Qiong Wu
- Department of Cardiology, Tongliao Second People's Hospital, Tongliao, China
| | - Wuliji Ao
- The Research Institute of Traditional Mongolian Medicine Engineering Technology, Tongliao, China.,College of Traditional Mongolian Medicine, Inner Mongolia University for Nationalities, Tongliao, China
| | - Ji-Xing Nan
- Key Laboratory for Traditional Chinese Korean Medicine of Jilin Province, College of Pharmacy, Yanbian University, Yanji, China.,Clinical Research Center, Yanbian University Hospital, Yanji, China
| |
Collapse
|
12
|
Genievskaya Y, Karelova D, Abugalieva S, Zhao P, Chen G, Turuspekov Y. SSR-based evaluation of genetic diversity in populations of Agriophyllum squarrosum L. and Agriophyllum minus Fisch. & Mey. collected in South-East Kazakhstan. Vavilovskii Zhurnal Genet Selektsii 2020; 24:697-704. [PMID: 33738387 PMCID: PMC7960446 DOI: 10.18699/vj20.664] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
The development of informative polymorphic DNA markers for poorly studied genera is an important
step in population analyses of living organisms, including those that play very important ecological roles in harsh
environments, such as desert and semi-desert area. Examples of those poorly studied desert species are Agriophyllum
squarrosum L. and Agriophyllum minus Fisch. & Mey. However, a recent RNA-sequencing project in A. squarrosum
has proposed a large set of hypothetical SSR (simple sequence repeat) markers. In this work, 11 novel polymorphic
SSRs were found due to the screening of 24 randomly selected SSRs for three populations of A. squarrosum
and one population of A. minus. The analysis of 11 SSRs revealed 16 polymorphic loci in two Agriophyllum species,
8 polymorphic loci within three populations of A. squarrosum, and 6 polymorphic loci in the population of A. minus.
Statistical analyses showed high interspecific, but relatively low intraspecific genetic diversity. The phylogenetic
clusterization and population structure analysis have demonstrated a clear segregation of A. minus from A. squarrosum,
as well as the separation of population 1 from populations 2 and 3 of A. squarrosum. Thus, we identified the
set of novel and informative SSR markers suitable for the study of genetic diversity in Agriophyllum.
Collapse
Affiliation(s)
- Y Genievskaya
- Laboratory of molecular genetics, Institute of Plant Biology and Biotechnology, Almaty, Kazakhstan
| | - D Karelova
- Laboratory of molecular genetics, Institute of Plant Biology and Biotechnology, Almaty, Kazakhstan
| | - S Abugalieva
- Laboratory of molecular genetics, Institute of Plant Biology and Biotechnology, Almaty, Kazakhstan Department of biodiversity and bioresources, al-Farabi Kazakh National University, Almaty, Kazakhstan
| | - P Zhao
- Key laboratory of stress physiology and ecology in cold and arid regions, Northwest Institute of Eco-Environment and Resources, Gansu, China
| | - G Chen
- Key laboratory of stress physiology and ecology in cold and arid regions, Northwest Institute of Eco-Environment and Resources, Gansu, China
| | - Y Turuspekov
- Laboratory of molecular genetics, Institute of Plant Biology and Biotechnology, Almaty, Kazakhstan Department of biodiversity and bioresources, al-Farabi Kazakh National University, Almaty, Kazakhstan
| |
Collapse
|
13
|
Bao S, Wu YL, Wang X, Han S, Cho S, Ao W, Nan JX. Agriophyllum oligosaccharides ameliorate hepatic injury in type 2 diabetic db/db mice targeting INS-R/IRS-2/PI3K/AKT/PPAR-γ/Glut4 signal pathway. JOURNAL OF ETHNOPHARMACOLOGY 2020; 257:112863. [PMID: 32302715 DOI: 10.1016/j.jep.2020.112863] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 04/04/2020] [Accepted: 04/07/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Agriophyllum squarrosum (L.) Moq. is a traditional Mongol medicine generally used to treat diabetes. OBJECTIVE To investigate the protective effects and potential mechanisms of Agriophyllum oligosaccharides (AOS) on liver injury in type 2 diabetic db/db mice. MATERIALS AND METHODS The db/db mice were divided into the model group (Model), metformin group (MET), high-dose AOS group (HAOS), and low-dose AOS group (LAOS). Nondiabetic littermate control db/m mice were used as the normal control group (Control). Mice in AOS groups were treated with AOS (380 or 750 mg/kg) daily, for 8 weeks. At 8 weeks, blood samples were collected to detect lipid and enzyme parameters concerning hepatic function, including alanine aminotransferase (ALT), aspartate aminotransferase (AST), total protein (TP), albumin (ALB), globulin (GLB), triglyceride (TG), total cholesterol (TC), and high-density lipoprotein cholesterol (HDL-C). Random blood glucose (RBG) test, oral glucose tolerance test (OGTT), and oral maltose tolerance test (OMTT) were also conducted. Microscopy was used to observe morphological changes in the liver of AOS-treated groups. Real-time PCR was used to detect the mRNA expression, including insulin receptor substrate 2 (IRS-2), phosphatidylinositol 3 kinase (PI3K), protein kinase B (AKT), peroxisome proliferator-activated receptor (PPAR)-γ, insulin receptor (INS-R), and Glut4. Furthermore, western blotting was performed to identify proteins, including phosphorylation of IRS-2 (p-IRS-2), PI3K, p-AKT, PPAR-γ, INS-R, and Glut4. Hepatic protein expression of p-IRS-2, PI3K, p-AKT, PPAR-γ, INS-R, and Glut4 was observed using immunohistochemical staining. RESULTS AOS treatment significantly decreased RBG, OGTT, and OMTT in mice, as well as serum ALT and AST activities. AOS groups demonstrated significantly higher expressions of p-IRS-2, PI3K, PPAR-γ, p-AKT, INS-R, and Glut4 protein and IRS-2, PI3K, AKT, PPAR-γ, INS-R, and Glut4 mRNA in the liver tissue of db/db mice; the degeneration and necrosis of hepatocytes and formation of collagen fibres markedly reduced, improving the structural disorder in the liver. CONCLUSION The results suggest that AOS could protect the liver in type 2 diabetes, in part by activating insulin in the INS-R/IRS2/PI3K/AKT/Glut4/PPAR-γ signal pathway, facilitating hepatocyte proliferation, and further reducing the blood glucose levels.
Collapse
Affiliation(s)
- Shuyin Bao
- Key Laboratory for Traditional Chinese Korean Medicine of Jilin Province, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, PR China; Medical College, Inner Mongolia University for Nationalities, Tongliao, 028000, PR China
| | - Yan-Ling Wu
- Key Laboratory for Traditional Chinese Korean Medicine of Jilin Province, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, PR China
| | - Xiuzhi Wang
- Department of Medicines and Foods, Tongliao Vocational College, Tongliao, 028000, PR China
| | - Shuying Han
- Basic Medical College, North China University of Science and Technology, Tangshan, 063210, PR China
| | - SungBo Cho
- College of Traditional Mongolian Medicine, Inner Mongolia University for Nationalities, Tongliao, 028000, PR China
| | - Wuliji Ao
- College of Traditional Mongolian Medicine, Inner Mongolia University for Nationalities, Tongliao, 028000, PR China.
| | - Ji-Xing Nan
- Key Laboratory for Traditional Chinese Korean Medicine of Jilin Province, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, PR China; Clinical Research Center, Yanbian University Hospital, Yanji, Jilin Province, 133002, PR China.
| |
Collapse
|