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Ren X, Xing Y, He L, Xiu Z, Yang L, Han A, Jia Q, Dong Y. Effect of 1-Deoxynojirimycin on insulin resistance in prediabetic mice based on next-generation sequencing and intestinal microbiota study. JOURNAL OF ETHNOPHARMACOLOGY 2022; 289:115029. [PMID: 35077826 DOI: 10.1016/j.jep.2022.115029] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 01/14/2022] [Accepted: 01/20/2022] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE 1-Deoxynojirimycin (DNJ), the major alkaloid in Morus alba L., is the main effective constituent in "Mulberry twig Alkaloids Tablets" launched in China in 2020. Prediabetes, characterized by insulin resistance, is regarded as the key period for reversing Type 2 diabetes mellitus (T2DM) through lifestyle intervention and glucose-lowering drugs. Besides the excellent activity as an α-glucosidase inhibitor, DNJ also improves insulin sensitivity in T2DM murine models, yet the mechanism is still unclear. Besides, the pharmaceutical effect of DNJ on prediabetes is also undocumented. AIM OF THE STUDY The aim of this study was to investigate the pharmaceutical effect of DNJ on high-fat and streptozotocin (STZ)-induced prediabetes mice, and to elucidate the mechanism of insulin resistance ameliorated by DNJ. MATERIALS AND METHODS Oral glucose tolerance test (OGTT) and insulin tolerance test (ITT) were performed to detect blood glucose level and insulin sensitivity in mice. The levels of circulating lipopolysaccharide (LPS), interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α) in the plasma of mice were measured by limulus reagent and enzyme-linked immunosorbent assay (ELISA), respectively. Next-generation sequencing (NGS) and intestinal microbiota sequencing were used to screen the alterations in the transcriptome of liver tissues and to assess the differences in intestinal flora composition, respectively. Expression of cytokine signaling pathway inhibitor 3 (SOCS3), insulin receptor substrate (IRS1), p-IRS1 (Tyr896), occludin, and toll like receptor 4 (TLR4)/NF-κB signaling pathway were confirmed by western blotting. RESULTS Our study revealed that DNJ decreased the blood glucose level and improve insulin sensitivity in prediabetic mice. DNJ significantly reduced the relative risk of T2DM in prediabetic mice by approximately 83.7%. Mechanistically, DNJ treatment suppressed the circulating levels of LPS, IL-6, and TNF-α in plasma and decreased the inflammatory infiltration in liver and colon tissues. DNJ-treatment increased the abundance of Akkermansia, Bifidobacterium, and Lactobacillus, and decreased the abundance of Enterococcaceae and Lachnospiraceae. Moreover, DNJ suppressed the expression of SOCS3 and the activity of TLR4/NF-κB signaling pathway, meanwhile improving the expression of occludin and the ratio of p-IRS1 (Tyr896)/IRS1. CONCLUSIONS DNJ effectively ameliorates glucose and lipid metabolism in prediabetic mice, and decreased the relative risk of progression into T2DM from prediabetes. The suppressed immune responses play essential roles in the improvement of insulin resistance by DNJ treatment. In conclusion, DNJ from Morus alba L. is a promising alternative agent in T2DM prevention.
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Affiliation(s)
- Xinxiu Ren
- School of Bioengineering, Dalian University of Technology, Dalian, Liaoning, 116024, China.
| | - Yan Xing
- School of Bioengineering, Dalian University of Technology, Dalian, Liaoning, 116024, China.
| | - Liangyu He
- School of Bioengineering, Dalian University of Technology, Dalian, Liaoning, 116024, China.
| | - Zhilong Xiu
- School of Bioengineering, Dalian University of Technology, Dalian, Liaoning, 116024, China.
| | - Ling Yang
- Xinjiang Production and Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin, Tarim University, Alar, Xinjiang, 843300, China; Instrumental Analysis Center, Tarim University, Alar, Xinjiang, 843300, China.
| | - Aizhi Han
- Instrumental Analysis Center, Tarim University, Alar, Xinjiang, 843300, China.
| | - Qinhua Jia
- Instrumental Analysis Center, Tarim University, Alar, Xinjiang, 843300, China.
| | - Yuesheng Dong
- School of Bioengineering, Dalian University of Technology, Dalian, Liaoning, 116024, China.
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Targeting NRF2 in Type 2 diabetes mellitus and depression: Efficacy of natural and synthetic compounds. Eur J Pharmacol 2022; 925:174993. [PMID: 35513015 DOI: 10.1016/j.ejphar.2022.174993] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 03/31/2022] [Accepted: 04/28/2022] [Indexed: 12/18/2022]
Abstract
Evidence supports a strong bidirectional association between depression and Type 2 diabetes mellitus (T2DM). The harmful impact of oxidative stress and chronic inflammation on the development of both disorders is widely accepted. Nuclear factor erythroid 2-related factor 2 (NRF2) is a pertinent target in disease management owing to its reputation as the master regulator of antioxidant responses. NRF2 influences the expression of various cytoprotective phase 2 antioxidant genes, which is hampered in both depression and T2DM. Through interaction and crosstalk with several signaling pathways, NRF2 endeavors to contain the widespread oxidative damage and persistent inflammation involved in the pathophysiology of depression and T2DM. NRF2 promotes the neuroprotective and insulin-sensitizing properties of its upstream and downstream targets, thereby interrupting and preventing disease advancement. Standard antidepressant and antidiabetic drugs may be powerful against these disorders, but unfortunately, they come bearing distressing side effects. Therefore, exploiting the therapeutic potential of NRF2 activators presents an exciting opportunity to manage such bidirectional and comorbid conditions.
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Anti-Inflammatory and Anti-Bacterial Potential of Mulberry Leaf Extract on Oral Microorganisms. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19094984. [PMID: 35564380 PMCID: PMC9099889 DOI: 10.3390/ijerph19094984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 04/14/2022] [Accepted: 04/18/2022] [Indexed: 01/25/2023]
Abstract
Mulberry leaves extract (Morus alba extracts; MAE) is known to have therapeutic potentials for numerous human diseases, including diabetes, neurological disorders, cardiovascular diseases, and cancers. However, there has not been sufficient research proving therapeutic effects on oral disease and its related oral risk factors. Thus, we investigated whether MAE has any anti-inflammatory and anti-bacterial effects on risk factors causing oral infectious diseases. To examine the anti-inflammatory response and bacterial inhibition of MAE, we measured intracellular reactive oxygen species (ROS) generation, production of pro-inflammatory cytokines, and the bacterial growth rate. Our study showed that MAE has anti-inflammatory activities, which inhibit the ROS generation and suppressed the production of pro-inflammatory cytokines (TNF-α and IL-6) in human monocyte THP-1 cells by stimulating lipopolysaccharide (LPS) and/or F. nucleatum, which are the virulent factors in periodontal diseases. Furthermore, MAE inhibited the bacterial growth on oral microorganisms (F. nucleatum and S. mutans) infected THP-1 cells. These findings suggested that MAE could be a potential natural source for therapeutic drugs in oral infectious disease.
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Wolosowicz M, Prokopiuk S, Kaminski TW. Recent Advances in the Treatment of Insulin Resistance Targeting Molecular and Metabolic Pathways: Fighting a Losing Battle? Medicina (B Aires) 2022; 58:medicina58040472. [PMID: 35454311 PMCID: PMC9029454 DOI: 10.3390/medicina58040472] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 03/19/2022] [Accepted: 03/23/2022] [Indexed: 12/11/2022] Open
Abstract
Diabetes Mellitus (DM) is amongst the most notable causes of years of life lost worldwide and its prevalence increases perpetually. The disease is characterized as multisystemic dysfunctions attributed to hyperglycemia resulting directly from insulin resistance (IR), inadequate insulin secretion, or enormous glucagon secretion. Insulin is a highly anabolic peptide hormone that regulates blood glucose levels by hastening cellular glucose uptake as well as controlling carbohydrate, protein, and lipid metabolism. In the course of Type 2 Diabetes Mellitus (T2DM), which accounts for nearly 90% of all cases of diabetes, the insulin response is inadequate, and this condition is defined as Insulin Resistance. IR sequela include, but are not limited to, hyperglycemia, cardiovascular system impairment, chronic inflammation, disbalance in oxidative stress status, and metabolic syndrome occurrence. Despite the substantial progress in understanding the molecular and metabolic pathways accounting for injurious effects of IR towards multiple body organs, IR still is recognized as a ferocious enigma. The number of widely available therapeutic approaches is growing, however, the demand for precise, safe, and effective therapy is also increasing. A literature search was carried out using the MEDLINE/PubMed, Google Scholar, SCOPUS and Clinical Trials Registry databases with a combination of keywords and MeSH terms, and papers published from February 2021 to March 2022 were selected as recently published papers. This review paper aims to provide critical, concise, but comprehensive insights into the advances in the treatment of IR that were achieved in the last months.
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Affiliation(s)
- Marta Wolosowicz
- Department of Physiology, Medical University of Bialystok, 15-222 Bialystok, Poland;
| | - Slawomir Prokopiuk
- Faculty of Health Sciences, Lomza State University of Applied Sciences, 18-400 Lomza, Poland;
| | - Tomasz W. Kaminski
- Department of Medicine, Pittsburgh Heart, Lung and Blood Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15260, USA
- Correspondence:
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Du Y, Li DX, Lu DY, Zhang R, Zheng XX, Xu BJ, Zhao YL, Ji S, Guo MZ, Wang L, Tang DQ. Morus alba L. water extract changes gut microbiota and fecal metabolome in mice induced by high-fat and high-sucrose diet plus low-dose streptozotocin. Phytother Res 2022; 36:1241-1257. [PMID: 35129235 DOI: 10.1002/ptr.7343] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 10/22/2021] [Accepted: 11/10/2021] [Indexed: 12/12/2022]
Abstract
Gut microbiota plays a key role in the pathophysiology of type 2 diabetes mellitus (T2D). Mulberry leaf has a hypoglycemic effect, but the potential mechanism is not fully understood. This study aimed to explore the influences and potential mechanisms of mulberry leaf water extract (MLWE) intervention on mice with T2D induced through a high-fat and high-sucrose diet combined with streptozotocin by the combination of fecal metabolomics and gut microbiota analysis. Results showed that MLWE could decrease fasting blood glucose and body weight while ameliorating lipid profiles, insulin resistance, liver inflammation, and the accumulation of lipid droplets in T2D mice. MLWE could reverse the abundances of the phyla Actinobacteria and Bacteroidetes and the ratio of Firmicutes/Bacteroidetes, and increase the abundances of the phyla Cyanobacteria and Epsilonbacteraeota in the feces of T2D mice. The abundances of genera Alloprevotella, Parabacteroides, Muribaculaceae, and Romboutsia in the feces of T2D mice could be reversed, while Oscillatoriales_cyanobacterium and Gastranaerophilales could be reinforced by MLWE supplementation. The levels of nine metabolites in the feces of T2D mice were improved, among which glycine, Phe-Pro, urocanic acid, phylloquinone, and lactate were correlated with Romboutsia and Gastranaerophilales. Taken together, we conclude that MLWE can effectively alleviate T2D by mediating the host-microbial metabolic axis.
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Affiliation(s)
- Yan Du
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Ding-Xiang Li
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Dong-Yu Lu
- Department of Pharmacy, Suining People's Hospital Affiliated to Xuzhou Medical University, Suining, China
| | - Ran Zhang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Xiao-Xiao Zheng
- Department of Pharmacy, Xuzhou Municipal Hospital Affiliated to Xuzhou Medical University, Xuzhou, China
| | - Bing-Ju Xu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Yan-Lin Zhao
- Department of Pharmacy, Suining People's Hospital Affiliated to Xuzhou Medical University, Suining, China
| | - Shuai Ji
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China.,Department of Pharmaceutical Analysis, Xuzhou Medical University, Xuzhou, China
| | - Meng-Zhe Guo
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China.,Department of Pharmaceutical Analysis, Xuzhou Medical University, Xuzhou, China
| | - Liang Wang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China.,Department of Bioinformatics, School of Medical Informatics and Engineering, Xuzhou Medical University, Xuzhou, China
| | - Dao-Quan Tang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China.,Department of Pharmacy, Suining People's Hospital Affiliated to Xuzhou Medical University, Suining, China.,Department of Pharmaceutical Analysis, Xuzhou Medical University, Xuzhou, China
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Prasathkumar M, Becky R, Anisha S, Dhrisya C, Sadhasivam S. Evaluation of hypoglycemic therapeutics and nutritional supplementation for type 2 diabetes mellitus management: An insight on molecular approaches. Biotechnol Lett 2022; 44:203-238. [PMID: 35119572 DOI: 10.1007/s10529-022-03232-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Accepted: 01/28/2022] [Indexed: 12/12/2022]
Abstract
OBJECTIVE This review aims to summarize the current management of type 2 diabetes principles, including oral hypoglycemic agents, types of insulin administration, diet maintenance, and various molecular approaches. METHODS A literature search was conducted in different databases such as Scopus, ScienceDirect, Google Scholar, and Web of Science by using the following keywords: type-2 diabetes mellitus (T2DM), first-line and second-line treatment, oral hypoglycemic agents, insulin administration, diet/nutritional therapy, gene and stem cell therapy, and diabetic complications. RESULTS The first-line treatment of T2DM includes administering oral hypoglycemic agents (OHAs) and second-line treatment by insulin therapy and some OHAs like Sulfonylurea's (SU). The oral hypoglycemic or oral antidiabetic drugs have the function of lowering glucose in the blood. Insulin therapy is recommended for people with A1C levels > 7.0, and insulin administration is evolved drastically from the syringe, pump, pen, inhalation, insulin jet, and patch. The use of OHAs and insulin therapy during glycemic control has a severe effect on weight gain and other side effects. Hence, diet maintenance (macro and micronutrients) and nutritional therapy guidelines were also reviewed/recommended for safe T2DM management. Besides, the recent progress in molecular approaches that focuses on identifying new targets for T2DM (i.e.) consisting of gene therapy, stem cell therapy, and the modulation of insulin signaling pathways for the regulation of glucose storage and uptake also discussed. CONCLUSION The analysis of all these key factors is necessary to develop a potential agent to cure T2DM and suggest that a combination of therapies will pave the way for advanced management of T2DM.
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Affiliation(s)
- Murugan Prasathkumar
- Bioprocess and Biomaterials Laboratory, Department of Microbial Biotechnology, Bharathiar University, Coimbatore, 641046, India
| | - Robert Becky
- Bioprocess and Biomaterials Laboratory, Department of Microbial Biotechnology, Bharathiar University, Coimbatore, 641046, India
| | - Salim Anisha
- Bioprocess and Biomaterials Laboratory, Department of Microbial Biotechnology, Bharathiar University, Coimbatore, 641046, India
| | - Chenthamara Dhrisya
- Bioprocess and Biomaterials Laboratory, Department of Microbial Biotechnology, Bharathiar University, Coimbatore, 641046, India
| | - Subramaniam Sadhasivam
- Bioprocess and Biomaterials Laboratory, Department of Microbial Biotechnology, Bharathiar University, Coimbatore, 641046, India.
- Department of Extension and Career Guidance, Bharathiar University, Coimbatore, 641046, India.
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Zhao X, Fu Z, Yao M, Cao Y, Zhu T, Mao R, Huang M, Pang Y, Meng X, Li L, Zhang B, Li Y, Zhang H. Mulberry ( Morus alba L.) leaf polysaccharide ameliorates insulin resistance- and adipose deposition-associated gut microbiota and lipid metabolites in high-fat diet-induced obese mice. Food Sci Nutr 2022; 10:617-630. [PMID: 35154697 PMCID: PMC8825736 DOI: 10.1002/fsn3.2689] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 10/18/2021] [Accepted: 11/21/2021] [Indexed: 11/21/2022] Open
Abstract
Dietary supplements are currently being used to ameliorate metabolic alterations via maintaining gut microflora balance. Mulberry leaf is known as medicine homologous food for its glucose- and lipid-modulating properties. However, the effects of mulberry leaf polysaccharide (MP) on metabolic dysbiosis and gut microbiota are still poorly understood. After extraction and characterization, the beneficial effects of water-soluble MP were evaluated in high-fat diet-induced obese mice. MP treatment could reduce adipose tissue, improve insulin resistance, and alleviate the pathological lesions in colon. Investigation of the underlying mechanism showed that MP modulated gut microbial community by 16S rRNA analysis and reversed the elevation of lipid indexes by plasma lipidomics analysis. Correlation analysis indicated that the abundance of seven key bacterial species and six lipids were closely associated with the metabolic traits, respectively. Overall, MP could ameliorate metabolic disorders, and modify the gut microbiota and lipids. This would greatly facilitate the utilization of MP as a functional food.
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Affiliation(s)
- Xin Zhao
- State Key Laboratory of Component‐based Chinese MedicineTianjin University of Traditional Chinese MedicineTianjinChina
- Key Laboratory of Pharmacology of Traditional Chinese Medical FormulaMinistry of EducationTianjin University of Traditional Chinese MedicineTianjinChina
| | - Zhifei Fu
- State Key Laboratory of Component‐based Chinese MedicineTianjin University of Traditional Chinese MedicineTianjinChina
- Key Laboratory of Pharmacology of Traditional Chinese Medical FormulaMinistry of EducationTianjin University of Traditional Chinese MedicineTianjinChina
| | - Minghe Yao
- Key Laboratory of Pharmacology of Traditional Chinese Medical FormulaMinistry of EducationTianjin University of Traditional Chinese MedicineTianjinChina
| | - Yu Cao
- State Key Laboratory of Component‐based Chinese MedicineTianjin University of Traditional Chinese MedicineTianjinChina
- Key Laboratory of Pharmacology of Traditional Chinese Medical FormulaMinistry of EducationTianjin University of Traditional Chinese MedicineTianjinChina
| | - Tongtong Zhu
- State Key Laboratory of Component‐based Chinese MedicineTianjin University of Traditional Chinese MedicineTianjinChina
| | - Rui Mao
- State Key Laboratory of Component‐based Chinese MedicineTianjin University of Traditional Chinese MedicineTianjinChina
| | - Ming Huang
- State Key Laboratory of Component‐based Chinese MedicineTianjin University of Traditional Chinese MedicineTianjinChina
| | - Yafen Pang
- State Key Laboratory of Component‐based Chinese MedicineTianjin University of Traditional Chinese MedicineTianjinChina
| | - Xianghui Meng
- Key Laboratory of Pharmacology of Traditional Chinese Medical FormulaMinistry of EducationTianjin University of Traditional Chinese MedicineTianjinChina
| | - Lin Li
- State Key Laboratory of Component‐based Chinese MedicineTianjin University of Traditional Chinese MedicineTianjinChina
- Key Laboratory of Pharmacology of Traditional Chinese Medical FormulaMinistry of EducationTianjin University of Traditional Chinese MedicineTianjinChina
| | - Boli Zhang
- State Key Laboratory of Component‐based Chinese MedicineTianjin University of Traditional Chinese MedicineTianjinChina
- Key Laboratory of Pharmacology of Traditional Chinese Medical FormulaMinistry of EducationTianjin University of Traditional Chinese MedicineTianjinChina
| | - Yuhong Li
- State Key Laboratory of Component‐based Chinese MedicineTianjin University of Traditional Chinese MedicineTianjinChina
- Key Laboratory of Pharmacology of Traditional Chinese Medical FormulaMinistry of EducationTianjin University of Traditional Chinese MedicineTianjinChina
| | - Han Zhang
- State Key Laboratory of Component‐based Chinese MedicineTianjin University of Traditional Chinese MedicineTianjinChina
- Key Laboratory of Pharmacology of Traditional Chinese Medical FormulaMinistry of EducationTianjin University of Traditional Chinese MedicineTianjinChina
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Li JS, Ji T, Su SL, Zhu Y, Chen XL, Shang EX, Guo S, Qian DW, Duan JA. Mulberry leaves ameliorate diabetes via regulating metabolic profiling and AGEs/RAGE and p38 MAPK/NF-κB pathway. JOURNAL OF ETHNOPHARMACOLOGY 2022; 283:114713. [PMID: 34626776 DOI: 10.1016/j.jep.2021.114713] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 10/01/2021] [Accepted: 10/04/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Mulberry leaves have been used as traditional hypoglycemic medicine-food plant for thousand years in China. According to traditional Chinese medicine theory, type 2 diabetes mellitus (T2DM) belongs to the category of XiaoKe. Presently, the research of mulberry leaf hypoglycemic and lipid-lowering direction is mature, but the curative effects of alkaloids, flavonoids, polysaccharides, and other bioactive ingredients and the related mechanism is still unclear. AIM OF THE STUDY This paper aims to study the efficacy and mechanism of alkaloids, flavonoids, polysaccharides, and other bioactive components in mulberry leaves in the treatment of T2DM individually. MATERIALS AND METHODS The determination of levels of fasting blood glucose (FBG), triglyceride (TG) and total cholesterol (T-Cho), and pyruvate kinase (PK), hexokinase (HK), and alanine aminotransferase (ALT/GPT) of in plasma of diabetic mice. Urine metabolomics was analyzed by UPLC-QTOF/MS to evaluate differential metabolites from multiple metabolic pathways. The glucose uptake of HepG2 cells and 3T3-L1 cells. Expression of Caspase-3 and caspase-9, inflammatory injury and p38MAPK/NF-κB signaling pathway in GLUTag cells. RESULTS Our study revealed alkaloids, flavonoids, and polysaccharides in mulberry leaf could increase the levels of PK, HK, and ALT/GPT, and decrease the levels of TG and T-Cho significantly, and regulate glucose, amino acid, and lipid metabolism. Furthermore, 1-deoxynojirimycin (DNJ) and isoquercitrin (QG) both could increase glucose uptake and promote differentiation of HepG2 cells, increase PPARγ, C/EBPα and SREBP-l expression in 3T3-L1 cells, and inhibit AGEs-induced injury and apoptosis in GLUTag cells, reduce the expression of proteins related to AGEs/RAGE and p38MAPK/NF-κB pathway. Notably, isoquercitrin exhibited more pronounced anti-diabetic efficacy. CONCLUSIONS The alkaloids, flavonoids, and polysaccharides from mulberry leaf exhibited hypoglycemic activity through the regulation of glucose, amino acid, and lipid metabolism. 1-DNJ and QG increased glucose uptake and promoted differentiation of HepG2 cells, increased PPARγ, C/EBPα and SREBP-l expression in 3T3-L1 cells, and inhibited AGEs-induced injury and apoptosis in GLUTag cells via the AGEs/RAGE and p38 MAPK/NF-κB pathway.
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Affiliation(s)
- Jia-Shang Li
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, And Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Tao Ji
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, And Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Shu-Lan Su
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, And Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
| | - Yue Zhu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, And Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Xing-Ling Chen
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, And Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Er-Xin Shang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, And Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Sheng Guo
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, And Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Da-Wei Qian
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, And Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Jin-Ao Duan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, And Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
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Zhong G, Hu T, Tang L, Li T, Wu S, Duan X, Pan J, Zhang H, Tang Z, Feng X, Hu L. Arsenic causes mitochondrial biogenesis obstacles by inhibiting the AMPK/PGC-1α signaling pathway and also induces apoptosis and dysregulated mitophagy in the duck liver. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 230:113117. [PMID: 34959015 DOI: 10.1016/j.ecoenv.2021.113117] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 12/20/2021] [Accepted: 12/21/2021] [Indexed: 06/14/2023]
Abstract
Arsenic is a dangerous metalloid-material which is known to cause liver injury in many animals and humans. However, little is known about the underlying mechanism of arsenic-induced hepatotoxicity in poultry. This study was executed to systematically investigate the potential role of mitochondrial biogenesis, mitophagy and apoptosis in duck hepatotoxicity caused by arsenic. Results showed that the body weight and liver coefficient of duck had distinct changed after arsenic-exposure, and the arsenic content in serum and liver also increased significantly in a dose-dependent manner. Meanwhile, histopathological examination and metabolomics results showed that arsenic-exposure caused severe steatosis and metabolism disorder in liver tissues. Furthermore, arsenic-exposure significantly inhibited AMPK/PGC-1α-mediated mitochondrial biogenesis, determined by the ultrastructure observation and down-regulation of p-AMPKα/AMPKα, PGC-1α, NRF1, NRF2, TFAM, TFB1M, TFB2M and COX-Ⅳ expression levels. Besides, arsenic-treatment obviously increased the levels of mitophagy (PINK1, Parkin, LC3, P62) and pro-apoptotic (Caspase-3, Caspase-9, Cleaved Caspase-3, Cytc, Bax, P53) indexes, and simultaneously resulted in reductions in anti-apoptosis index (Bcl-2). Overall, our findings provided evidences that arsenic-induced duck hepatotoxicity may be caused by a combination of impaired mitochondrial biosynthesis, mitophagy, and mitochondrial-dependent apoptosis. To our knowledge, this is the first report to systematically investigate the potential mechanism of arsenic-induced hepatotoxicity in poultry.
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Affiliation(s)
- Gaolong Zhong
- College of Veterinary Medicine, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China.
| | - Ting Hu
- College of Veterinary Medicine, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China.
| | - Lixuan Tang
- College of Veterinary Medicine, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China.
| | - Tong Li
- College of Veterinary Medicine, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China.
| | - Shaofeng Wu
- College of Veterinary Medicine, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China.
| | - Xuewu Duan
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; Agro-food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China.
| | - Jiaqiang Pan
- College of Veterinary Medicine, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China.
| | - Hui Zhang
- College of Veterinary Medicine, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China.
| | - Zhaoxin Tang
- College of Veterinary Medicine, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China.
| | - Xia Feng
- Yanzhou District Bureau of Agriculture and Rural Development, Jining City, Shandong, China.
| | - Lianmei Hu
- College of Veterinary Medicine, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China.
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Memete AR, Timar AV, Vuscan AN, Miere (Groza) F, Venter AC, Vicas SI. Phytochemical Composition of Different Botanical Parts of Morus Species, Health Benefits and Application in Food Industry. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11020152. [PMID: 35050040 PMCID: PMC8777750 DOI: 10.3390/plants11020152] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 12/31/2021] [Accepted: 01/03/2022] [Indexed: 05/05/2023]
Abstract
In recent years, mulberry has acquired a special importance due to its phytochemical composition and its beneficial effects on human health, including antioxidant, anticancer, antidiabetic and immunomodulatory effects. Botanical parts of Morus sp. (fruits, leaves, twigs, roots) are considered a rich source of secondary metabolites. The aim of our study was to highlight the phytochemical profile of each of the botanical parts of Morus tree, their health benefits and applications in food industry with an updated review of literature. Black and white mulberries are characterized in terms of predominant phenolic compounds in correlation with their medical applications. In addition to anthocyanins (mainly cyanidin-3-O-glucoside), black mulberry fruits also contain flavonols and phenolic acids. The leaves are a rich source of flavonols, including quercetin and kaempferol in the glycosylated forms and chlorogenic acid as predominant phenolic acids. Mulberry bark roots and twigs are a source of prenylated flavonoids, predominantly morusin. In this context, the exploitation of mulberry in food industry is reviewed in this paper, in terms of developing novel, functional food with multiple health-promoting effects.
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Affiliation(s)
- Adriana Ramona Memete
- Doctoral School of Biomedical Science, University of Oradea, 410087 Oradea, Romania;
| | - Adrian Vasile Timar
- Faculty of Environmental Protection, University of Oradea, 410048 Oradea, Romania; (A.V.T.); (A.N.V.)
| | - Adrian Nicolae Vuscan
- Faculty of Environmental Protection, University of Oradea, 410048 Oradea, Romania; (A.V.T.); (A.N.V.)
| | - Florina Miere (Groza)
- Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania; (F.M.); (A.C.V.)
| | - Alina Cristiana Venter
- Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania; (F.M.); (A.C.V.)
| | - Simona Ioana Vicas
- Faculty of Environmental Protection, University of Oradea, 410048 Oradea, Romania; (A.V.T.); (A.N.V.)
- Correspondence:
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Fan K, Yang X, Zhou C, Mei X, Yang X, Fu Q, Li Y, Lin Y, Yang C. Optimization of the extraction process of polyphenols from Allium cepa using response surface methodology and assessment of its antioxidant and lipid-lowering action. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2022. [DOI: 10.1007/s11694-021-01239-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Liu Y, Xiao Y, Xie J, Peng Y, Li F, Chen C, Li Y, Zhang X, He J, Xiao D, Yin Y. Dietary Supplementation With Flavonoids From Mulberry Leaves Improves Growth Performance and Meat Quality, and Alters Lipid Metabolism of Skeletal Muscle in a Chinese Hybrid Pig. Anim Feed Sci Technol 2022. [DOI: 10.1016/j.anifeedsci.2022.115211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Zhang R, Zhang Q, Zhu S, Liu B, Liu F, Xu Y. Mulberry leaf (Morus alba L.): A review of its potential influences in mechanisms of action on metabolic diseases. Pharmacol Res 2021; 175:106029. [PMID: 34896248 DOI: 10.1016/j.phrs.2021.106029] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 11/17/2021] [Accepted: 12/06/2021] [Indexed: 12/18/2022]
Abstract
The leaves of Morus alba L. (called Sangye in Chinese, ML), which belong to the genus Morus., are highly valuable edible plants in nutrients and nutraceuticals. In Asian countries including China, Japan and Korea, ML are widely used as functional foods including beverages, noodles and herbal tea because of its biological and nutritional value. Meanwhile, ML-derived products in the form of powders, extracts and capsules are widely consumed as dietary supplements for controlling blood glucose and sugar. Clinical studies showed that ML play an important role in the treatment of metabolic diseases including the diabetes, dyslipidemia, obesity, atherosclerosis and hypertension. People broadly use ML due to their nutritiousness, deliciousness, safety, and abundant active benefits. However, the systematic pharmacological mechanisms of ML on metabolic diseases have not been fully revealed. Therefore, in order to fully utilize and scale relevant products about ML, this review summarizes the up-to-date information about the ML and its constituents effecting on metabolic disease.
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Affiliation(s)
- Ruiyuan Zhang
- Pharmacy College of Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People's Republic of China; State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu 611137, People's Republic of China
| | - Qian Zhang
- Pharmacy College of Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People's Republic of China; State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu 611137, People's Republic of China
| | - Shun Zhu
- Pharmacy College of Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People's Republic of China; State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu 611137, People's Republic of China
| | - Biyang Liu
- Pharmacy College of Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People's Republic of China; State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu 611137, People's Republic of China
| | - Fang Liu
- Pharmacy College of Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People's Republic of China; State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu 611137, People's Republic of China.
| | - Yao Xu
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, People's Republic of China.
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Mattei L, Francisqueti-Ferron FV, Garcia JL, Ferron AJT, Silva CCVDA, Gregolin CS, Nakandakare-Maia ET, Silva JDCP, Moreto F, Minatel IO, Corrêa CR. Antioxidant and anti-inflammatory properties of gamma- oryzanol attenuates insulin resistance by increasing GLUT- 4 expression in skeletal muscle of obese animals. Mol Cell Endocrinol 2021; 537:111423. [PMID: 34400258 DOI: 10.1016/j.mce.2021.111423] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/05/2021] [Accepted: 08/10/2021] [Indexed: 02/08/2023]
Abstract
BACKGROUND Skeletal muscle is the most important organ for whole-body glucose homeostasis. However, it has been suggested that obesity-related inflammation could be involved in insulin resistance and diabetes mellitus type 2 (DM2) development due several mechanisms, among them, the reduced expression of the glucose transporter type 4 (GLUT-4). Gamma-oryzanol (γOz) is a compound present in the whole grain of rice that presents anti-inflammatory and antioxidant activities. The aim of this study was to verify if the effect antioxidant and anti-inflammatory of yOz attenuate insulin resistance in skeletal muscle of obese rats by increasing GLUT- 4 expression. METHODS Male Wistar rats (±187 g) were initially randomly distributed into 2 experimental groups (control, n = 6, and high sugar-fat diet (HSF), n = 12) for 20 weeks. At week 20th of this study, once obesity and insulin resistance were detected in the HSF group, animals were divided to begin the treatment with γOz or continue receiving HSF for 10 more weeks. At the end it was analyzed nutritional, metabolic, inflammatory and oxidative stress parameters and GLUT-4 protein expression. RESULTS The treatment improved insulin resistance, reduced inflammation, increased antioxidant response and GLUT-4 expression. CONCLUSION It is possible to conclude that the antioxidant and anti-inflammatory activity of yOz attenuates insulin resistance by increasing GLUT-4 expression in skeletal muscle of obese animals.
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Affiliation(s)
- Letícia Mattei
- São Paulo State University (UNESP), Medical School, Botucatu, SP, Brazil
| | | | | | | | | | | | | | | | - Fernando Moreto
- São Paulo State University (UNESP), Medical School, Botucatu, SP, Brazil
| | - Igor Otávio Minatel
- São Paulo State University (UNESP), Institute of Biosciences, Botucatu, SP, Brazil
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Park C, Ji SY, Lee H, Choi SH, Kwon CY, Kim SY, Lee ET, Choo ST, Kim GY, Choi YH, Kim MR. Mori Ramulus Suppresses Hydrogen Peroxide-Induced Oxidative Damage in Murine Myoblast C2C12 Cells through Activation of AMPK. Int J Mol Sci 2021; 22:ijms222111729. [PMID: 34769159 PMCID: PMC8583786 DOI: 10.3390/ijms222111729] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 10/27/2021] [Accepted: 10/28/2021] [Indexed: 01/25/2023] Open
Abstract
Mori Ramulus, the dried twigs of Morus alba L., has been attracting attention for its potent antioxidant activity, but its role in muscle cells has not yet been elucidated. The purpose of this study was to evaluate the protective effect of aqueous extracts of Mori Ramulus (AEMR) against oxidative stress caused by hydrogen peroxide (H2O2) in C2C12 mouse myoblasts, and in dexamethasone (DEX)-induced muscle atrophied models. Our results showed that AEMR rescued H2O2-induced cell viability loss and the collapse of the mitochondria membrane potential. AEMR was also able to activate AMP-activated protein kinase (AMPK) in H2O2-treated C2C12 cells, whereas compound C, a pharmacological inhibitor of AMPK, blocked the protective effects of AEMR. In addition, H2O2-triggered DNA damage was markedly attenuated in the presence of AEMR, which was associated with the inhibition of reactive oxygen species (ROS) generation. Further studies showed that AEMR inhibited cytochrome c release from mitochondria into the cytoplasm, and Bcl-2 suppression and Bax activation induced by H2O2. Furthermore, AEMR diminished H2O2-induced activation of caspase-3, which was associated with the ability of AEMR to block the degradation of poly (ADP-ribose) polymerase, thereby attenuating H2O2-induced apoptosis. However, compound C greatly abolished the protective effect of AEMR against H2O2-induced C2C12 cell apoptosis, including the restoration of mitochondrial dysfunction. Taken together, these results demonstrate that AEMR could protect C2C12 myoblasts from oxidative damage by maintaining mitochondrial function while eliminating ROS, at least with activation of the AMPK signaling pathway. In addition, oral administration of AEMR alleviated gastrocnemius and soleus muscle loss in DEX-induced muscle atrophied rats. Our findings support that AEMR might be a promising therapeutic candidate for treating oxidative stress-mediated myoblast injury and muscle atrophy.
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Affiliation(s)
- Cheol Park
- Division of Basic Sciences, College of Liberal Studies, Dong-Eui University, Busan 47340, Korea;
| | - Seon Yeong Ji
- Department of Biochemistry, College of Korean Medicine, Dong-Eui University, Busan 47227, Korea; (S.Y.J.); (H.L.)
- Anti-Aging Research Center, Dong-Eui University, Busan 47340, Korea
| | - Hyesook Lee
- Department of Biochemistry, College of Korean Medicine, Dong-Eui University, Busan 47227, Korea; (S.Y.J.); (H.L.)
- Anti-Aging Research Center, Dong-Eui University, Busan 47340, Korea
| | - Sung Hyun Choi
- Department of System Management, Korea Lift College, Geochang 50141, Korea;
| | - Chan-Young Kwon
- Department of Oriental Neuropsychiatry, College of Korean Medicine, Dong-Eui University, Busan 47340, Korea;
| | - So Young Kim
- Department of Pharmacology, College of Korean Medicine, Daegu Haany University, Daegu 42158, Korea;
| | - Eun Tag Lee
- Agricultural Corporation, Ebiche Co., Ltd., Yeongcheon 38819, Korea; (E.T.L.); (S.T.C.)
| | - Sung Tae Choo
- Agricultural Corporation, Ebiche Co., Ltd., Yeongcheon 38819, Korea; (E.T.L.); (S.T.C.)
| | - Gi-Young Kim
- Department of Marine Life Science, School of Marine Biomedical Sciences, Jeju National University, Jeju 63243, Korea;
| | - Yung Hyun Choi
- Department of Biochemistry, College of Korean Medicine, Dong-Eui University, Busan 47227, Korea; (S.Y.J.); (H.L.)
- Anti-Aging Research Center, Dong-Eui University, Busan 47340, Korea
- Correspondence: (Y.H.C.); (M.R.K.); Tel.: +82-51-890-3319 (Y.H.C.); +82-53-770-2241 (M.R.K.)
| | - Mi Ryeo Kim
- Department of Pharmacology, College of Korean Medicine, Daegu Haany University, Daegu 42158, Korea;
- Correspondence: (Y.H.C.); (M.R.K.); Tel.: +82-51-890-3319 (Y.H.C.); +82-53-770-2241 (M.R.K.)
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Weng G, Duan Y, Zhong Y, Song B, Zheng J, Zhang S, Yin Y, Deng J. Plant Extracts in Obesity: A Role of Gut Microbiota. Front Nutr 2021; 8:727951. [PMID: 34631766 PMCID: PMC8495072 DOI: 10.3389/fnut.2021.727951] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Accepted: 08/10/2021] [Indexed: 12/12/2022] Open
Abstract
Obesity has become one of the most serious chronic diseases threatening human health. Its occurrence and development are closely associated with gut microbiota since the disorders of gut microbiota can promote endotoxin production and induce inflammatory response. Recently, numerous plant extracts have been proven to mitigate lipid dysmetabolism and obesity syndrome by regulating the abundance and composition of gut microbiota. In this review, we summarize the potential roles of different plant extracts including mulberry leaf extract, policosanol, cortex moutan, green tea, honokiol, and capsaicin in regulating obesity via gut microbiota. Based on the current findings, plant extracts may be promising agents for the prevention and treatment of obesity and its related metabolic diseases, and the mechanisms might be associated with gut microbiota.
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Affiliation(s)
- Guangying Weng
- Guangdong Provincial Key Laboratory of Animal Nutrition Regulation, South China Agricultural University, Guangzhou, China.,CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China
| | - Yehui Duan
- CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China
| | - Yinzhao Zhong
- CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China
| | - Bo Song
- CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China.,College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Jie Zheng
- CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China.,College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Shiyu Zhang
- CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China.,College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Yulong Yin
- Guangdong Provincial Key Laboratory of Animal Nutrition Regulation, South China Agricultural University, Guangzhou, China.,CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China
| | - Jinping Deng
- Guangdong Provincial Key Laboratory of Animal Nutrition Regulation, South China Agricultural University, Guangzhou, China
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Morales Ramos JG, Esteves Pairazamán AT, Mocarro Willis MES, Collantes Santisteban S, Caldas Herrera E. Medicinal properties of Morus alba for the control of type 2 diabetes mellitus: a systematic review. F1000Res 2021; 10:1022. [PMID: 34912543 PMCID: PMC8593624 DOI: 10.12688/f1000research.55573.1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/31/2021] [Indexed: 11/24/2022] Open
Abstract
Background: The objective of this review was to evaluate the medicinal potential of Morus alba leaves on the control of type 2 diabetes mellitus (DM2). The research question was: what is the therapeutic potential of Morus alba leaves for the control of DM2? Methods: This systematic review was based on the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guidelines. The included studies were extracted from Scopus, Pubmed, ScienceDirect, Scielo, and Google Scholar; January 2015 to July 2021. Key search terms were MeSH and DeCS: Morus alba, mulberry, hypoglycemic agent. The inclusion criteria were: studies in rats administered Morus alba leaf extracts; studies that included the dimensions of lipidemia and glycemia; studies that included indicators such as fasting glucose, postprandial glucose, glycosylated hemoglobin, triglycerides, low-density lipoproteins, total cholesterol, and insulin resistance. Exclusion criteria: studies in which Morus alba leaves were administered with other plants; studies with other parts of the Morus alba plant; proteomic studies, cancer, duplicate studies, in vitro studies, and evaluation of included studies. All included investigations were evaluated for biases. Results: Of 253 studies found, 29 were included. The extracts of Morus alba leaves at the phytochemical level improve glucose uptake. Chlorogenic acid, isoquercitrin, and quercitrin, present in the leaves of Morus alba, have hypoglycemic properties and an ameliorating effect on diabetic nephropathy. This leaf has pharmacological effects such as glucose absorption, insulin secretion production, antioxidant and anti-inflammatory agent, antihyperglycemic and antihyperlipidemic activities, and obesity management. Conclusions:Morus alba leaves have pharmacological effects on DM2 that include glucose absorption, production of insulin secretion, antioxidant agent, antihyperglycemic and antihyperlipidemic activities, and obesity control. Beyond these results, there is a lack of studies on the potential and synergistic effects of Morus alba leaves' components, limiting the possibility of a more effective therapy using the plant's leaves.
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Grassi D, Necozione S, Desideri G, Abballe S, Mai F, De Feo M, Carducci A, Ferri C. Acute and Long Term Effects of a Nutraceutical Combination on Lipid Profile, Glucose Metabolism and Vascular Function in Patients with Dyslipidaemia with and Without Cigarette Smoking. High Blood Press Cardiovasc Prev 2021; 28:483-491. [PMID: 34519016 PMCID: PMC8484132 DOI: 10.1007/s40292-021-00468-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 07/25/2021] [Indexed: 12/16/2022] Open
Abstract
Introduction Lifestyle changes present a fundamental role in cardiovascular prevention. Nutraceuticals also supplementing diet could help in controlling the cardiometabolic risk. Aim (1) to evaluate acute effects of a combination of nutraceuticals (cNUT) on vascular function, BP, metabolism in dyslipidaemic patients before and after smoking; (2) to evaluate 12 weeks effects of the cNUT on lipid profile, insulin resistance and vascular function in patients with hypercholesterolemia not on statins. Methods After 14 d run-in period, 33 patients assumed a cNUT [patented formula containing: berberine (531.25 mg), red yeast rice powder (220 mg, 3.3 mg monacolin K) and leaf extract of Morus alba (200 mg) (LopiGLIK®, Akademy Pharma)]. To evaluate acute effects, cNUT or cNUT + smoking (in smoking subjects) on the morning of the first day of the study and then 26 patients prolonged 12 weeks effects. Results In non smokers, cNUT improved FMD (p = 0.041 for treatment). In smokers, FMD decreased after smoking, this was counteracted by intake of cNUT. In smokers, DBP increased after smoking a cigarette (p = 0.042 for treatment), counteracted by the cNUT intake. In non smokers, thermogenesis was increased after cNUT administration (p < 0.0001 for treatment). After 12 weeks of cNUT, FMD significantly increased (p < 0.05) and SBP (p = 0.04), total cholesterol and LDL cholesterol (p = 0.03) decreased. Conclusions Our study suggests benefits of cNUT on cardiovascular prevention in hypercolesterolemic patients, non statin treated, that goes beyond the cholesterol and insulin resistance reduction protecting the subject from negative effects induced by smoking too.
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Affiliation(s)
- Davide Grassi
- Department of Life, Health and Environmental Sciences, University of L'Aquila, Viale S Salvatore, Delta 6 Medicina, 67100, L'Aquila, Coppito, Italy.
| | - Stefano Necozione
- Department of Life, Health and Environmental Sciences, University of L'Aquila, Viale S Salvatore, Delta 6 Medicina, 67100, L'Aquila, Coppito, Italy
| | - Giovambattista Desideri
- Department of Life, Health and Environmental Sciences, University of L'Aquila, Viale S Salvatore, Delta 6 Medicina, 67100, L'Aquila, Coppito, Italy
| | - Stefano Abballe
- Department of Life, Health and Environmental Sciences, University of L'Aquila, Viale S Salvatore, Delta 6 Medicina, 67100, L'Aquila, Coppito, Italy
| | - Francesca Mai
- Department of Life, Health and Environmental Sciences, University of L'Aquila, Viale S Salvatore, Delta 6 Medicina, 67100, L'Aquila, Coppito, Italy
| | - Martina De Feo
- Department of Life, Health and Environmental Sciences, University of L'Aquila, Viale S Salvatore, Delta 6 Medicina, 67100, L'Aquila, Coppito, Italy
| | - Augusto Carducci
- Department of Life, Health and Environmental Sciences, University of L'Aquila, Viale S Salvatore, Delta 6 Medicina, 67100, L'Aquila, Coppito, Italy
| | - Claudio Ferri
- Department of Life, Health and Environmental Sciences, University of L'Aquila, Viale S Salvatore, Delta 6 Medicina, 67100, L'Aquila, Coppito, Italy
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Zhao W, Chen L, Zhou H, Deng C, Han Q, Chen Y, Wu Q, Li S. Protective effect of carvacrol on liver injury in type 2 diabetic db/db mice. Mol Med Rep 2021; 24:741. [PMID: 34435648 PMCID: PMC8430346 DOI: 10.3892/mmr.2021.12381] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Accepted: 02/24/2021] [Indexed: 12/11/2022] Open
Abstract
The present study aimed to investigate the protective effect of carvacrol on liver injury in mice with type 2 diabetes mellitus (T2DM) and to assess its potential molecular mechanism. Mice were divided into three groups (n=15/group): Non-diabetic db/m+ mice group, db/db mice group and db/db mice + carvacrol group. In the db/db mice + carvacrol group, db/db mice were administered 10 mg/kg carvacrol daily by gavage for 6 weeks. Fasting blood glucose and insulin levels were separately examined. Pathological changes were observed using hematoxylin and eosin, Masson's trichrome, periodic acid Schiff and reticular fiber staining. In addition, immunohistochemistry, immunofluorescence and western blotting were used to examine the expression levels of Toll-like receptor 4 (TLR4), NF-κB, NALP3, AKT1, phosphorylated (p)-AKT1, insulin receptor (INSR), p-INSR, mTOR, p-mTOR, insulin receptor substrate 1 (IRS1) and p-IRS1 in the liver tissues. The results revealed that carvacrol improved blood glucose and insulin resistance of T2DM db/db mice. After treatment with carvacrol for 6 weeks, the serum levels of TC, TG and LDL-C were markedly reduced, whereas HDL-C levels were significantly increased in db/db mice. Furthermore, carvacrol administration significantly decreased serum ALT and AST levels in db/db mice. Serum BUN, Cre and UA levels were markedly higher in db/db mice compared with those in the control group; however, carvacrol treatment markedly reduced their serum levels in db/db mice. Furthermore, histological examinations confirmed that carvacrol could protect the liver of db/db mice. Carvacrol could ameliorate liver injury induced by T2DM via mediating insulin, TLR4/NF-κB and AKT1/mTOR signaling pathways. The present findings suggested that carvacrol exerted protective effects on the liver in T2DM db/db mice, which could be related to insulin, TLR4/NF-κB and AKT1/mTOR signaling pathways.
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Affiliation(s)
- Wei Zhao
- Department of Endocrinology, The Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550003, P.R. China
| | - Li Chen
- Department of Prevention and Health Care, The Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550003, P.R. China
| | - Heng Zhou
- Department of Endocrinology, The Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550003, P.R. China
| | - Chunyan Deng
- Department of Endocrinology, The Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550003, P.R. China
| | - Qizhen Han
- Department of Endocrinology, The Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550003, P.R. China
| | - Yonghua Chen
- Department of Endocrinology, The Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550003, P.R. China
| | - Qing Wu
- Department of Endocrinology, The Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550003, P.R. China
| | - Shanshan Li
- Department of Endocrinology, The Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550003, P.R. China
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Zinc Regulates Glucose Metabolism of the Spinal Cord and Neurons and Promotes Functional Recovery after Spinal Cord Injury through the AMPK Signaling Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:4331625. [PMID: 34373765 PMCID: PMC8349299 DOI: 10.1155/2021/4331625] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 06/19/2021] [Indexed: 12/17/2022]
Abstract
Spinal cord injury (SCI) is a traumatic disease that can cause severe nervous system dysfunction. SCI often causes spinal cord mitochondrial dysfunction and produces glucose metabolism disorders, which affect neuronal survival. Zinc is an essential trace element in the human body and plays multiple roles in the nervous system. This experiment is intended to evaluate whether zinc can regulate the spinal cord and neuronal glucose metabolism and promote motor functional recovery after SCI. Then we explore its molecular mechanism. We evaluated the function of zinc from the aspects of glucose uptake and the protection of the mitochondria in vivo and in vitro. The results showed that zinc elevated the expression level of GLUT4 and promoted glucose uptake. Zinc enhanced the expression of proteins such as PGC-1α and NRF2, reduced oxidative stress, and promoted mitochondrial production. In addition, zinc decreased neuronal apoptosis and promoted the recovery of motor function in SCI mice. After administration of AMPK inhibitor, the therapeutic effect of zinc was reversed. Therefore, we concluded that zinc regulated the glucose metabolism of the spinal cord and neurons and promoted functional recovery after SCI through the AMPK pathway, which is expected to become a potential treatment strategy for SCI.
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Liu L, Guo P, Wang P, Zheng S, Qu Z, Liu N. The Review of Anti-aging Mechanism of Polyphenols on Caenorhabditis elegans. Front Bioeng Biotechnol 2021; 9:635768. [PMID: 34327192 PMCID: PMC8314386 DOI: 10.3389/fbioe.2021.635768] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 06/07/2021] [Indexed: 12/11/2022] Open
Abstract
Micronutrients extracted from natural plants or made by biological synthesis are widely used in anti-aging research and applications. Among more than 30 effective anti-aging substances, employing polyphenol organic compounds for modification or delaying of the aging process attracts great interest because of their distinct contribution in the prevention of degenerative diseases, such as cardiovascular disease and cancer. There is a profound potential for polyphenol extracts in the research of aging and the related diseases of the elderly. Previous studies have mainly focused on the properties of polyphenols implicated in free radical scavenging; however, the anti-oxidant effect cannot fully elaborate its biological functions, such as neuroprotection, Aβ protein production, ion channel coupling, and signal transduction pathways. Caenorhabditis elegans (C. elegans) has been considered as an ideal model organism for exploring the mechanism of anti-aging research and is broadly utilized in screening for natural bioactive substances. In this review, we have described the molecular mechanisms and pathways responsible for the slowdown of aging processes exerted by polyphenols. We also have discussed the possible mechanisms for their anti-oxidant and anti-aging properties in C. elegans from the perspective of different classifications of the specific polyphenols, such as flavonols, anthocyanins, flavan-3-ols, hydroxybenzoic acid, hydroxycinnamic acid, and stilbenes.
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Affiliation(s)
- Limin Liu
- College of Public Health, Zhengzhou University, Zhengzhou, China.,Institute of Chronic Disease Risks Assessment, School of Nursing and Health, Henan University, Kaifeng, China
| | - Peisen Guo
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Peixi Wang
- Institute of Chronic Disease Risks Assessment, School of Nursing and Health, Henan University, Kaifeng, China
| | - Shanqing Zheng
- School of Basic Medical Sciences, Henan University, Kaifeng, China
| | - Zhi Qu
- Institute of Chronic Disease Risks Assessment, School of Nursing and Health, Henan University, Kaifeng, China
| | - Nan Liu
- College of Public Health, Zhengzhou University, Zhengzhou, China.,Institute of Chronic Disease Risks Assessment, School of Nursing and Health, Henan University, Kaifeng, China.,Institute of Environment and Health, South China Hospital, Health Science Center, Shenzhen University, Shenzhen, China
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Liu ZZ, Liu QH, Liu Z, Tang JW, Chua EG, Li F, Xiong XS, Wang MM, Wen PB, Shi XY, Xi XY, Zhang X, Wang L. Ethanol extract of mulberry leaves partially restores the composition of intestinal microbiota and strengthens liver glycogen fragility in type 2 diabetic rats. BMC Complement Med Ther 2021; 21:172. [PMID: 34126977 PMCID: PMC8204513 DOI: 10.1186/s12906-021-03342-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 06/03/2021] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Mulberry leaf as a traditional Chinese medicine is able to treat obesity, diabetes, and dyslipidemia. It is well known that diabetes leads to intestinal microbiota dysbiosis. It is also recently discovered that liver glycogen structure is impaired in diabetic animals. Since mulberry leaves are able to improve the diabetic conditions through reducing blood glucose level, it would be interesting to investigate whether they have any positive effects on intestinal microbiota and liver glycogen structure. METHODS In this study, we first determined the bioactive components of ethanol extract of mulberry leaves via high-performance liquid chromatography (HPLC) and liquid chromatography/mass spectrometry (LC/MS). Murine animal models were divided into three groups, normal Sprague-Dawley (SD) rats, high-fat diet (HFD) and streptozotocin (STZ) induced type 2 diabetic rats, and HFD/STZ-induced rats administered with ethanol extract of mulberry leaves (200 mg/kg/day). Composition of intestinal microbiota was analyzed via metagenomics by sequencing the V3-V4 region of 16S rDNAs. Liver glycogen structure was characterized through size exclusion chromatography (SEC). Both Student's t-test and Tukey's test were used for statistical analysis. RESULTS A group of type 2 diabetic rat models were successfully established. Intestinal microbiota analysis showed that ethanol extract of mulberry leaves could partially change intestinal microbiota back to normal conditions. In addition, liver glycogen was restored from fragile state to stable state through administration of ethanol extract of mulberry leaves. CONCLUSIONS This study confirms that the ethanol extract of mulberry leaves (MLE) ameliorates intestinal microbiota dysbiosis and strengthens liver glycogen fragility in diabetic rats. These finding can be helpful in discovering the novel therapeutic targets with the help of further investigations.
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Affiliation(s)
- Zhan-Zhong Liu
- Xuzhou Infectious Diseases Hospital, Xuzhou, 221000, Jiangsu, China
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221000, Jiangsu, China
- Department of Pharmaceutical Analysis, School of Pharmacy, Xuzhou Medical University, Xuzhou, 221000, Jiangsu, China
| | - Qing-Hua Liu
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, 999078, China
- Faculty of Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, 999078, China
| | - Zhao Liu
- Department of Thyroid and Breast Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221000, Jiangsu, China
| | - Jia-Wei Tang
- Department of Bioinformatics, School of Medical Informatics and Engineering, Xuzhou Medical University, Xuzhou, 221000, Jiangsu, China
| | - Eng-Guan Chua
- Marshall Center for Infectious Diseases and Training, University of Western Australia, Perth, WA, 6009, Australia
| | - Fen Li
- Department of Laboratory Medicine, Huaiyin Hospital, Huai'an, 223300, Jiangsu, China
| | - Xue-Song Xiong
- Department of Laboratory Medicine, Huaiyin Hospital, Huai'an, 223300, Jiangsu, China
| | - Meng-Meng Wang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221000, Jiangsu, China
- Department of Pharmaceutical Analysis, School of Pharmacy, Xuzhou Medical University, Xuzhou, 221000, Jiangsu, China
| | - Peng-Bo Wen
- Department of Bioinformatics, School of Medical Informatics and Engineering, Xuzhou Medical University, Xuzhou, 221000, Jiangsu, China
| | - Xin-Yi Shi
- School of Life Science, Xuzhou Medical University, Xuzhou, 221000, Jiangsu, China
| | - Xiang-Yu Xi
- Xuzhou Infectious Diseases Hospital, Xuzhou, 221000, Jiangsu, China
| | - Xiao Zhang
- Department of Bioinformatics, School of Medical Informatics and Engineering, Xuzhou Medical University, Xuzhou, 221000, Jiangsu, China.
| | - Liang Wang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221000, Jiangsu, China.
- Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China.
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Mulberry leaf activates brown adipose tissue and induces browning of inguinal white adipose tissue in type 2 diabetic rats through regulating AMP-activated protein kinase signalling pathway. Br J Nutr 2021; 127:810-822. [PMID: 33971987 DOI: 10.1017/s0007114521001537] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The current epidemic of type 2 diabetes mellitus (T2DM) significantly affects human health worldwide. Activation of brown adipocytes and browning of white adipocytes are considered as a promising molecular target for T2DM treatment. Mulberry leaf, a traditional Chinese medicine, has been demonstrated to have multi-biological activities, including anti-diabetic and anti-inflammatory effects. Our experimental results showed that mulberry leaf significantly alleviated the disorder of glucose and lipid metabolism in T2DM rats. In addition, mulberry leaf induced browning of inguinal white adipose tissue (IWAT) by enhancing the expressions of brown-mark genes as well as beige-specific genes, including uncoupling protein-1 (UCP1), peroxisome proliferator-activated receptor gamma coactivator 1 alpha (PGC-1α), peroxisome proliferator-activated receptor alpha (PPARα), PRD1-BF-1-RIZ1 homologous domain containing protein 16 (PRDM16), cell death inducing DFFA-like effector A (Cidea), CD137 and transmembrane protein 26 (TMEM26). Mulberry leaf also activated brown adipose tissue (BAT) by increasing the expressions of brown-mark genes including UCP1, PGC-1α, PPARα, PRDM16 and Cidea. Moreover, mulberry leaf enhanced the expression of nuclear respiratory factor 1 (NRF-1) and mitochondrial transcription factor A (TFAM) genes that are responsible for mitochondrial biogenesis in IWAT and BAT. Importantly, mulberry leaf also increased the expression of UCP1 and carnitine palmitoyl transferase 1 (CPT-1) proteins in both IWAT and BAT via a mechanism involving AMP-activated protein kinase (AMPK) and PGC-1α pathway. In conclusion, our findings identify the role of mulberry leaf in inducing adipose browning, indicating that mulberry leaf may be used as a candidate browning agent for the treatment of T2DM.
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The Potential Role of Polyphenols in Modulating Mitochondrial Bioenergetics within the Skeletal Muscle: A Systematic Review of Preclinical Models. Molecules 2021; 26:molecules26092791. [PMID: 34068459 PMCID: PMC8125960 DOI: 10.3390/molecules26092791] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 04/09/2021] [Accepted: 04/11/2021] [Indexed: 12/19/2022] Open
Abstract
Polyphenols are naturally derived compounds that are increasingly being explored for their various health benefits. In fact, foods that are rich in polyphenols have become an attractive source of nutrition and a potential therapeutic strategy to alleviate the untoward effects of metabolic disorders. The last decade has seen a rapid increase in studies reporting on the bioactive properties of polyphenols against metabolic complications, especially in preclinical models. Various experimental models involving cell cultures exposed to lipid overload and rodents on high fat diet have been used to investigate the ameliorative effects of various polyphenols against metabolic anomalies. Here, we systematically searched and included literature reporting on the impact of polyphenols against metabolic function, particularly through the modulation of mitochondrial bioenergetics within the skeletal muscle. This is of interest since the skeletal muscle is rich in mitochondria and remains one of the main sites of energy homeostasis. Notably, increased substrate availability is consistent with impaired mitochondrial function and enhanced oxidative stress in preclinical models of metabolic disease. This explains the general interest in exploring the antioxidant properties of polyphenols and their ability to improve mitochondrial function. The current review aimed at understanding how these compounds modulate mitochondrial bioenergetics to improve metabolic function in preclinical models on metabolic disease.
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Wu Q, Hu Y. Systematic Evaluation of the Mechanisms of Mulberry Leaf (Morus alba Linne) Acting on Diabetes Based on Network Pharmacology and Molecular Docking. Comb Chem High Throughput Screen 2021; 24:668-682. [PMID: 32928080 DOI: 10.2174/1386207323666200914103719] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 07/20/2020] [Accepted: 07/22/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Diabetes mellitus is one of the most common endocrine metabolic disorder- related diseases. The application of herbal medicine to control glucose levels and improve insulin action might be a useful approach in the treatment of diabetes. Mulberry leaves (ML) have been reported to exert important activities of anti-diabetic. OBJECTIVE In this work, we aimed to explore the multi-targets and multi-pathways regulatory molecular mechanism of Mulberry leaves (ML, Morus alba Linne) acting on diabetes. METHODS Identification of active compounds of Mulberry leaves using Traditional Chinese Medicine Systems Pharmacology (TCMSP) database was carried out. Bioactive components were screened by FAF-Drugs4 website (Free ADME-Tox Filtering Tool). The targets of bioactive components were predicted from SwissTargetPrediction website, and the diabetes related targets were screened from GeneCards database. The common targets of ML and diabetes were used for Gene Ontology (GO) and pathway enrichment analysis. The visualization networks were constructed by Cytoscape 3.7.1 software. The biological networks were constructed to analyze the mechanisms as follows: (1) compound-target network; (2) common target-compound network; (3) common targets protein interaction network; (4) compound-diabetes protein-protein interactions (ppi) network; (5) target-pathway network; and (6) compound-target-pathway network. At last, the prediction results of network pharmacology were verified by molecular docking method. RESULTS 17 active components were obtained by TCMSP database and FAF-Drugs4 website. 51 potential targets (11 common targets and 40 associated indirect targets) were obtained and used to build the PPI network by the String database. Furthermore, the potential targets were used for GO and pathway enrichment analysis. Eight key active compounds (quercetin, Iristectorigenin A, 4- Prenylresveratrol, Moracin H, Moracin C, Isoramanone, Moracin E and Moracin D) and 8 key targets (AKT1, IGF1R, EIF2AK3, PPARG, AGTR1, PPARA, PTPN1 and PIK3R1) were obtained to play major roles in Mulberry leaf acting on diabetes. And the signal pathways involved in the mechanisms mainly include AMPK signaling pathway, PI3K-Akt signaling pathway, mTOR signaling pathway, insulin signaling pathway and insulin resistance. The molecular docking results show that the 8 key active compounds have good affinity with the key target of AKT1, and the 5 key targets (IGF1R, EIF2AK3, PPARG, PPARA and PTPN1) have better affinity than AKT1 with the key compound of quercetin. CONCLUSION Based on network pharmacology and molecular docking, this study provided an important systematic and visualized basis for further understanding of the synergy mechanism of ML acting on diabetes.
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Affiliation(s)
- Qiguo Wu
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yeqing Hu
- Department of Pharmacy, Anqing Medical College, Anqing 246052, China
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Ji S, Zhu C, Gao S, Shao X, Chen X, Zhang H, Tang D. Morus alba leaves ethanol extract protects pancreatic islet cells against dysfunction and death by inducing autophagy in type 2 diabetes. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 83:153478. [PMID: 33567371 DOI: 10.1016/j.phymed.2021.153478] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 01/18/2021] [Accepted: 01/21/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Protection of pancreatic islet cells against dysfunction or death by regulating autophagy is considered to be an effective method for treatment of type 2 diabetes mellitus (T2DM). Morus alba leaves (mulberry leaves), a popular herbal medicine, have been used for prevention of T2DM since ancient times. PURPOSE This study aimed to clarify whether Morus alba leaves ethanol extract (MLE) could protect islet cells in vivo and in vitro by regulating autophagy in T2DM, and explore the possible mechanism of action. METHODS The main chemical constituents in MLE were analyzed by HPLC. The T2DM rat model was induced via high-fat diet combined with peritoneal injection of low-dose streptozotocin, and MLE was administered by oral gavage. Fasting blood glucose (FBG) and plasma insulin were measured, and homeostatic model assessment of β cell function (HOMA-β) and insulin resistance (HOMA-IR) were determined. The histomorphology of pancreas islets was evaluated by haematoxylin and eosin staining. In palmitic acid (PA)-stressed INS-1 rat insulinoma cells, cell viability was assayed by an MTT method. Expression of the autophagy-related proteins LC3 I/II, p62, p-AMPK and p-mTOR in islet tissues and INS-1 cells was evaluated by western blotting or immunohistochemistry analysis. RESULTS The four main chemical constituents in MLE were identified as chlorogenic acid, rutin, isoquercitrin and quercitrin. MLE ameliorated hyperglycemia, insulin resistance and dyslipidemia of T2DM rats with prominent therapeutic effect. Further study indicated that MLE observably improved islet function, alleviated islet injury of T2DM rats, and inhibited PA-induced INS-1 cell death. On the other hand, MLE significantly induced autophagy in islet cells both in vivo and in vitro, and autophagy inhibitors abolished its therapeutic effect on T2DM rats and protective effect on islet cells. Apart from this, MLE markedly activated the AMPK/mTOR pathway in INS-1 cells, and the AMPK inhibitor prevented the autophagy induction ability of MLE. CONCLUSION Together, MLE could protect islet cells against dysfunction and death by inducing AMPK/mTOR-mediated autophagy in T2DM, and these findings provide a new perspective for understanding the treatment mechanism of Morus alba leaves against T2DM.
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Affiliation(s)
- Shuai Ji
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Xuzhou 221004, China.
| | - Cuicui Zhu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
| | - Shikai Gao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
| | - Xian Shao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
| | - Xiaofei Chen
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
| | - Hui Zhang
- Department of Endocrinology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou 221004, China
| | - Daoquan Tang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Xuzhou 221004, China.
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Chemical Composition, Antioxidant, and α-Glucosidase-Inhibiting Activity of Aqueous and Hydroethanolic Extracts of Traditional Antidiabetics from Croatian Ethnomedicine. HORTICULTURAE 2021. [DOI: 10.3390/horticulturae7020015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Type 2 diabetes (T2D) is a chronic disease with a growing prevalence worldwide. In addition to the conventional therapy, many T2D patients use phytotherapeutic preparations. In the present study, chemical composition, antioxidant, and α-glucosidase inhibiting activity of traditional antidiabetics from Croatian ethnomedicine (Achillea millefolium, Artemisia absinthium, Centaurium erythraea, Morusalba, Phaseolus vulgaris, Sambucus nigra, and Salvia officinalis) were assessed. The efficacy of water and 80% ethanol as extraction solvents for bioactive constituents was compared. HPLC analysis revealed that the prepared extracts were rich in phenols, especially rutin, ferulic, and chlorogenic acid. Antiradical (against DPPH and ABTS radicals), reducing (towards Mo6+ and Fe3+ ions), and enzyme inhibiting properties were in linear correlation with the content of phenolic constituents. Ethanolic extracts, richer in phenolic substances, showed dominant efficacy in those assays. Aqueous extracts, on the other hand, were better Fe2+ ion chelators and more active in the β-carotene linoleic acid assay. Extracts from S. officinalis and A. millefolium were particularly active antioxidants and α-glucosidase inhibitors. A. absinthium, another potent α-glucosidase inhibitor, contained chromium, a mineral that promotes insulin action. The investigated plants contained significant amounts of minerals useful in management of T2D, with negligible amounts of heavy metals deeming them safe for human use.
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Response Surface Methodology for Optimization of Process Parameters and Antioxidant Properties of Mulberry ( Morus alba L.) Leaves by Extrusion. Molecules 2020; 25:molecules25225231. [PMID: 33182637 PMCID: PMC7697072 DOI: 10.3390/molecules25225231] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 11/03/2020] [Accepted: 11/06/2020] [Indexed: 11/16/2022] Open
Abstract
Mulberry (Morus alba L.) leaves (MLs), originally used to feed silkworms, have recently been recognized as a food ingredient containing health-beneficial, bioactive compounds. In this study, the extrusion process was applied for the enhancement of the amount of extractable flavonoids from MLs. Extrusion conditions were optimized by water solubility index, total phenolic content, and total flavonoid content (TF) using response surface methodology, and antioxidative stress activities were evaluated in macrophage cells. According to the significance of regression coefficients of TF, the optimal extrusion parameters were set as barrel temperature of 114 °C, moisture feed content of 20%, and screw speed of 232 rpm. Under these conditions, the TF of extruded ML reached to 0.91% and improved by 63% compared with raw ML. Fifteen flavonoids were analyzed using ultra-high-performance liquid chromatograph coupled with photodiode array detection and quadrupole time-of-flight mass spectrometry (UPLC-PDA-QTOF/MS), and the extrusion resulted in increases in quercetin-3-gentiobioside, quercetin-3,7-di-O-glucoside, kaempferol-3,7-di-O-glucoside, rutin, isoquercitrin, and moragrol C. Besides, regarding antioxidative activity, extruded ML water extract inhibited the production of H2O2-induced reactive oxygen species and attenuated nuclear morphology alterations in macrophage cells. The findings of this study should be useful in food processing design to improve the extractable functional compounds in MLs.
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Wang C, Ma Q, Xue Z, Li R, Wang Q, Li N, Zhang M, Panichayupakaranant P, Chen H. Physicochemical properties, α‐amylase and α‐glucosidase inhibitory effects of the polysaccharide from leaves of
Morus alba
L. under simulated gastro‐intestinal digestion and its fermentation capability
in vitro
by human gut microbiota. Int J Food Sci Technol 2020. [DOI: 10.1111/ijfs.14759] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Chunli Wang
- Tianjin Key Laboratory for Modern Drug Delivery & High‐Efficiency School of Pharmaceutical Science and Technology Tianjin University Tianjin300072China
| | - Qiqi Ma
- Tianjin Key Laboratory for Modern Drug Delivery & High‐Efficiency School of Pharmaceutical Science and Technology Tianjin University Tianjin300072China
| | - Zihan Xue
- Tianjin Key Laboratory for Modern Drug Delivery & High‐Efficiency School of Pharmaceutical Science and Technology Tianjin University Tianjin300072China
| | - Ruilin Li
- Tianjin Key Laboratory for Modern Drug Delivery & High‐Efficiency School of Pharmaceutical Science and Technology Tianjin University Tianjin300072China
| | - Qirou Wang
- Tianjin Key Laboratory for Modern Drug Delivery & High‐Efficiency School of Pharmaceutical Science and Technology Tianjin University Tianjin300072China
| | - Nannan Li
- Tianjin Key Laboratory for Modern Drug Delivery & High‐Efficiency School of Pharmaceutical Science and Technology Tianjin University Tianjin300072China
| | - Min Zhang
- Tianjin Agricultural University Tianjin300384China
- State Key Laboratory of Nutrition and Safety Tianjin University of Science & Technology Tianjin300457China
| | - Pharkphoom Panichayupakaranant
- Phytomedicine and Pharmaceutical Biotechnology Excellence Center Faculty of Pharmaceutical Sciences Prince of Songkla University Hat‐Yai Songkhla90112Thailand
| | - Haixia Chen
- Tianjin Key Laboratory for Modern Drug Delivery & High‐Efficiency School of Pharmaceutical Science and Technology Tianjin University Tianjin300072China
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Li M, Hassan FU, Tang Z, Peng L, Liang X, Li L, Peng K, Xie F, Yang C. Mulberry Leaf Flavonoids Improve Milk Production, Antioxidant, and Metabolic Status of Water Buffaloes. Front Vet Sci 2020; 7:599. [PMID: 33102551 PMCID: PMC7500204 DOI: 10.3389/fvets.2020.00599] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 07/27/2020] [Indexed: 01/08/2023] Open
Abstract
This study was aimed to evaluate the effect of mulberry leaf flavonoids (MLF) on oxidative stress, metabolic hormones, and milk production in Murrah buffaloes. Forty multiparous Murrah buffaloes (4 ± 1 lactations) with similar body weight (average 600 ± 50 Kg) and stage of lactation (90 ± 20 d) were randomly selected for this trial. Four treatment groups (10 buffaloes per group) with different doses of MLF included; control (0 g/d), MLF15 (15 g/d), MLF30 (30 g/d), and MLF45 (45 g/d). Buffaloes were fed with total mix ration consisting of grass (Pennisetum purpureum schum), brewery's grain and concentrate mixture for 5 weeks. Meteorological data including ambient temperature and relative humidity were recorded using the online dust monitoring system to calculate temperature-humidity index (THI). After 1 week of the adaptation, milk yield was recorded daily while physiological parameters (respiratory rate, rectal, and body surface temperature), and milk composition were measured weekly. At the end of the trial, blood samples were collected to analyze serum metabolic hormones including estradiol (E2), growth hormone (GH), prolactin (PRL), Tri-iodothyronine (T3), and Thyroxine (T4). Moreover, serum heat shock proteins (HSP), antioxidants enzymes including malondialdehyde (MDA), total antioxidant capacity (T-AOC), superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GSH-Px) and blood biochemical indices were also analyzed. Results revealed a decrease (P = 0.012) in serum MDA level while increasing (P < 0.01) the HSP and serum GHS-Px contents in supplemented buffaloes. Treatment showed a linear and quadratic decrease (p = 0.001) in the serum T-AOC while reducing CAT contents linearly (p = 0.012) as compared to the control. However, no effect of treatment on serum SOD content was observed. Treatment resulted a linear increase (p = 0.001) in serum GH and PRL hormones while increasing serum E2 levels linearly (P < 0.001) and quadratically (P = 0.025). Treatment increased (p = 0.038) the daily milk yield as compared to the control. However, increase (P < 0.05) in serum T3 and T4 contents, fat corrected milk (4%) and milk protein (%) was observed only in MLF45. Moreover, we observed no change in serum biochemical indices except insulin which linearly increased (p = 0.002) in MLF45. Our findings indicated that MLF at 45 g per day is an appropriate level to enhance milk performance and alleviate heat stress in buffaloes.
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Affiliation(s)
- Mengwei Li
- Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Ministry of Agriculture and Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning, China
| | - Faiz-Ul Hassan
- Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Ministry of Agriculture and Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning, China.,Institute of Animal and Dairy Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Zhenhua Tang
- Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Ministry of Agriculture and Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning, China
| | - Lijuan Peng
- Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Ministry of Agriculture and Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning, China
| | - Xin Liang
- Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Ministry of Agriculture and Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning, China
| | - Lili Li
- Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Ministry of Agriculture and Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning, China
| | - Kaiping Peng
- Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Ministry of Agriculture and Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning, China
| | - Fang Xie
- Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Ministry of Agriculture and Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning, China
| | - Chengjian Yang
- Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Ministry of Agriculture and Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning, China
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Niu SL, Tong ZF, Zhang Y, Liu TL, Tian CL, Zhang DX, Liu MC, Li B, Tian JL. Novel Protein Tyrosine Phosphatase 1B Inhibitor-Geranylated Flavonoid from Mulberry Leaves Ameliorates Insulin Resistance. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:8223-8231. [PMID: 32650643 DOI: 10.1021/acs.jafc.0c02720] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Mulberry leaf is a common vegetable with a variety of beneficial effects, such as hypoglycemic activity. However, the underlying mechanism of its hypoglycemic effect have not been fully revealed. In this study, two flavonoid derivatives were isolated from mulberry leaves, a new geranylated flavonoid compound (1) and its structural analogue (2). The structures of compounds 1 and 2 were elucidated using spectroscopic analysis. To study the potential hypoglycemic properties of these compounds, their regulatory effects on protein tyrosine phosphatase 1B (PTP1B) were investigated. In comparison to oleanolic acid, compounds 1 and 2 showed significant inhibitory activities (IC50 = 4.53 ± 0.31 and 10.53 ± 1.76 μM) against PTP1B, the positive control (IC50 = 7.94 ± 0.76 μM). Molecular docking predicted the binding sites of compound 1 to PTP1B. In insulin-resistance HepG2 cell, compound 1 promoted glucose consumption in a dose-dependent manner. Furthermore, western blot and polymerase chain reaction analyses indicated that compound 1 might regulate glucose consumption through the PTP1B/IRS/PI3K/AKT pathway. In conclusion, geranylated flavonoids in mulberry leaves inhibite PTP1B and increase the glucose consumption in insulin-resistant cells. These findings provide an important basis for the use of mulberry leaf flavonoids as a dietary supplement to regulate glucose metabolism.
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Affiliation(s)
- Sheng-Li Niu
- Key Laboratory of Livestock Infectious Diseases in Northeast China, Ministry of Education, College of Aninal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, Liaoning 110866, People's Republic of China
| | - Zhi-Fan Tong
- Key Laboratory of Livestock Infectious Diseases in Northeast China, Ministry of Education, College of Aninal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, Liaoning 110866, People's Republic of China
| | - Yu Zhang
- Key Laboratory of Livestock Infectious Diseases in Northeast China, Ministry of Education, College of Aninal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, Liaoning 110866, People's Republic of China
| | - Tian-Lin Liu
- Key Laboratory of Livestock Infectious Diseases in Northeast China, Ministry of Education, College of Aninal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, Liaoning 110866, People's Republic of China
| | - Chun-Lian Tian
- Key Laboratory of Livestock Infectious Diseases in Northeast China, Ministry of Education, College of Aninal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, Liaoning 110866, People's Republic of China
| | - De-Xian Zhang
- Key Laboratory of Livestock Infectious Diseases in Northeast China, Ministry of Education, College of Aninal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, Liaoning 110866, People's Republic of China
| | - Ming-Chun Liu
- Key Laboratory of Livestock Infectious Diseases in Northeast China, Ministry of Education, College of Aninal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, Liaoning 110866, People's Republic of China
| | - Bin Li
- Key Laboratory of Healthy Food Nutrition and Innovative Manufacturing, College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110866, People's Republic of China
| | - Jin-Long Tian
- Key Laboratory of Healthy Food Nutrition and Innovative Manufacturing, College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110866, People's Republic of China
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Meng Q, Qi X, Chao Y, Chen Q, Cheng P, Yu X, Kuai M, Wu J, Li W, Zhang Q, Li Y, Bian H. IRS1/PI3K/AKT pathway signal involved in the regulation of glycolipid metabolic abnormalities by Mulberry ( Morus alba L.) leaf extracts in 3T3-L1 adipocytes. Chin Med 2020; 15:1. [PMID: 31908653 PMCID: PMC6941306 DOI: 10.1186/s13020-019-0281-6] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 12/21/2019] [Indexed: 02/24/2023] Open
Abstract
Background Mulberry (Morus alba L.) leaf tea benefits the control of diabetes in Asian nations. This study was aim to investigate if the flavonoids, which extracts from mulberry leaves, could regulate the metabolism of glycolipid, and to investigate if flavonoids could regulate IRS1/PI3K/AKT pathway signal to affect the expression of FAS and membrane transfer capacity GLUT4 in 3T3-L1 adipocytes. Results Results revealed that flavonoids decreased the levels of free fatty acid and increased the glucose consumption and the levels of adiponectin and leptin in a dose-dependent manner, and remarkably increased the protein expression levels of p-IRS1, p-PI3K, p-Akt, total GLUT4, and membrane GLUT4, and decreased the protein expression levels of PTEN and FAS in 3T3-L1 adipocytes IR model. On the other hand, wortmannin (2 nM), a selective and irreversible PI3K inhibitor, significantly decreased the glucose consumption and the adiponectin and leptin levels, and increased the free fatty acid level in flavonoids treated 3T3-L1 adipocytes IR model. Furthermore, wortmannin (2 nM) partly eliminated the activation of PI3K/AKT signaling, the suppression of FAS, and the up-regulated membrane transfer capacity of GLUT4 in flavonoids treated 3T3-L1 adipocytes IR model. Conclusion In conclusion, our results illustrated that mulberry leaf extracts flavonoids alleviated the glycolipid metabolic abnormalities in 3T3-L1 adipocytes IR model, and the effect was associated with the activation of IRS1/PI3K/AKT pathway, the suppression of FAS, and the up-regulation of membrane transfer capacity of GLUT4.![]()
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Affiliation(s)
- Qinghai Meng
- 1School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023 China
| | - Xu Qi
- 4Department of Respiratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029 China
| | - Ying Chao
- 1School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023 China
| | - Qi Chen
- 1School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023 China
| | - Peng Cheng
- 1School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023 China
| | - Xichao Yu
- 1School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023 China
| | - Meiyu Kuai
- 1School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023 China
| | - Jingzhen Wu
- 2School of Medicine and Life Sciences, Nanjing University of Chinese Medicine, Nanjing, 210023 China
| | - Wenwen Li
- 2School of Medicine and Life Sciences, Nanjing University of Chinese Medicine, Nanjing, 210023 China
| | - Qichun Zhang
- 1School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023 China.,3Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023 China
| | - Yu Li
- 2School of Medicine and Life Sciences, Nanjing University of Chinese Medicine, Nanjing, 210023 China
| | - Huimin Bian
- 1School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023 China.,3Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023 China
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