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Parida IS, Takasu S, Ito J, Eitsuka T, Nakagawa K. 1-Deoxynojirimycin attenuates pathological markers of Alzheimer's disease in the in vitro model of neuronal insulin resistance. FASEB J 2024; 38:e23800. [PMID: 38979931 DOI: 10.1096/fj.202302600r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 05/29/2024] [Accepted: 06/25/2024] [Indexed: 07/10/2024]
Abstract
Insulin resistance, the hallmark of type 2 diabetes mellitus (T2DM), has emerged as a pathological feature in Alzheimer's disease (AD). Given the shared role of insulin resistance in T2DM and AD, repurposing peripheral insulin sensitizers is a promising strategy to preserve neuronal insulin sensitivity and prevent AD. 1-Deoxynojirimycin (DNJ), a bioactive iminosugar, exhibited insulin-sensitizing effects in metabolic tissues and was detected in brain tissue post-oral intake. However, its impact on brain and neuronal insulin signaling has not been described. Here, we investigated the effect of DNJ treatment on insulin signaling and AD markers in insulin-resistant human SK-N-SH neuroblastoma, a cellular model of neuronal insulin resistance. Our findings show that DNJ increased the expression of insulin signaling genes and the phosphorylation status of key molecules implicated in insulin resistance (Y1146-pIRβ, S473-pAKT, S9-GSK3B) while also elevating the expression of glucose transporters Glut3 and Glut4, resulting in higher glucose uptake upon insulin stimuli. DNJ appeared to mitigate the insulin resistance-driven increase in phosphorylated tau and Aβ1-42 levels by promoting insulin-induced phosphorylation of GSK3B (a major tau kinase) and enhancing mRNA expression of the insulin-degrading enzyme (IDE) pivotal for insulin and Aβ clearance. Overall, our study unveils probable mechanisms underlying the potential benefits of DNJ for AD, wherein DNJ attenuates tau and amyloid pathologies by reversing neuronal insulin resistance. This provides a scientific basis for expanding the use of DNJ-containing products for neuroprotective purposes and prompts further research into compounds with similar mechanisms of action.
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Affiliation(s)
- Isabella Supardi Parida
- Laboratory of Food Function Analysis, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
- Schizophrenia Research Project, Department of Psychiatry and Behavioral Sciences, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Soo Takasu
- Laboratory of Food Function Analysis, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
- Laboratory of Pharmaceutical Analytical Chemistry, Gifu Pharmaceutical University, Gifu, Japan
| | - Junya Ito
- Laboratory of Food Function Analysis, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Takahiro Eitsuka
- Laboratory of Food Function Analysis, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Kiyotaka Nakagawa
- Laboratory of Food Function Analysis, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
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Mai W, Shang Y, Wang Y, Chen Y, Mu B, Zheng Q, Liu H. 1-DNJ Alleviates Obesity-Induced Testicular Inflammation in Mice Model by Inhibiting IKKβ/ NF-kB Pathway. Reprod Sci 2024; 31:2103-2113. [PMID: 38453770 PMCID: PMC11217107 DOI: 10.1007/s43032-024-01502-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 02/14/2024] [Indexed: 03/09/2024]
Abstract
Obesity is associated with chronic inflammation that affects various organs in the body, including the reproductive system, which is a key factor in male infertility. 1-Deoxynojirimycin (1-DNJ) is a natural alkaloid in mulberry leaves, which has anti-inflammatory capabilities, yet, it's effects on obesity-induced inflammation-related male infertility remain unclear. Therefore, this research investigates the underlying mechanism by which 1-DNJ may mitigate fertility impairment in male mice caused by obesity-related inflammation. Male mice with high-fat diet (HFD)-induced obesity were treated with 1-DNJ or metformin for 8 weeks. Metabolic profiles were evaluated by enzyme method. Reproductive capacity was assessed by sperm viability, motility and counts, immunohistochemistry was performed to evaluate the testicular damage caused by obesity and inflammation. The inflammation was assessed by measuring the levels of tumor necrosis factor α (TNFα), interleukin 1β (IL-1β), and interleukin 6 (IL-6). The activation of IκB kinase β (IKKβ) and nuclear factor κB (NF-κB) was examined using western blot and immunohistochemistry. HFD induced obesity in mice with obvious lipid metabolism disorder. The obese male mice had a decreased testosterone level, impaired sperm motility, and increased inflammatory factors. 1-DNJ treatment improved the testosterone level in the obese mice, ameliorated the testicular structure damage and improve sperm viability. In addition, 1-DNJ treatment inhibited IKKβ/NF-kB signaling pathway and reduced inflammation in obese mice. 1-DNJ can improve the fertility of obese men by reducing obesity as well as obesity-induced inflammation. These findings provide new insights for 1-DNJ to alleviate inflammation caused by obesity and provide future possibilities for treating male infertility.
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Affiliation(s)
- Wenli Mai
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Sichuan, 637000, China
| | - Yi Shang
- The Second Affiliated Hospital of North Sichuan Medical College, Sichuan, 637000, China
| | - Yibin Wang
- Department of Imaging Medicine, North Sichuan Medical College, Sichuan, 637000, China
| | - Ying Chen
- Department of Clinical Medicine, North Sichuan Medical College, Sichuan, 637000, China
| | - Bo Mu
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Sichuan, 637000, China
| | - Qian Zheng
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Sichuan, 637000, China
| | - Hua Liu
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Sichuan, 637000, China.
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3
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Wang H, Liu YS, Peng Y, Chen W, Dong N, Wu Q, Pan B, Wang B, Guo W. Golgi α-mannosidases regulate cell surface N-glycan type and ectodomain shedding of the transmembrane protease corin. J Biol Chem 2023; 299:105211. [PMID: 37660903 PMCID: PMC10520876 DOI: 10.1016/j.jbc.2023.105211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 08/14/2023] [Accepted: 08/21/2023] [Indexed: 09/05/2023] Open
Abstract
Corin is a transmembrane protease that activates natriuretic peptides on the cell membrane. Reduced cell surface targeting or increased ectodomain shedding disrupts cell membrane homeostasis of corin, thereby impairing its cell surface expression and enzyme activity. N-glycans are essential in corin ectodomain shedding. Lack of N-glycans promotes corin ectodomain shedding in the juxtamembrane and frizzled-1 domains. The nascent N-glycans, transferred onto the polypeptide of corin, undergo multistep N-glycan processing in the endoplasmic reticulum and Golgi. It remains unclear how trimming by Golgi α-mannosidases, the critical N-glycan processing steps in N-glycan maturation, may regulate corin biosynthesis. In this study, we examined the effects of kifunensine and swainsonine, the inhibitors for α-mannosidases I and II, on corin expression and function. Western analysis of corin proteins in cell lysates and conditioned media from the inhibitor-treated corin-stable HEK293 cells and AC16 cells showed that both α-mannosidases I and II were required to maintain complex N-glycans on cell surface corin and protect corin from ectodomain shedding in the juxtamembrane and frizzled-1 domains. Cell viability analysis revealed that inhibition of α-mannosidase I or II sensitized cardiomyocytes to hydrogen peroxide-induced injury via regulating corin. Moreover, either one of the two coding genes was sufficient to perform Golgi α-mannosidase I trimming of N-glycans on corin. Similarly, this sufficiency was observed in Golgi α-mannosidase II-coding genes. Inhibition of ectodomain shedding restored corin zymogen activation from kifunensine- or swainsonine-induced reduction. Together, our results show the important roles of Golgi α-mannosidases in maintaining cell membrane homeostasis and biological activities of corin.
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Affiliation(s)
- Hao Wang
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yi-Shi Liu
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, China
| | - Yingfei Peng
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Wei Chen
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ningzheng Dong
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Prevention, Soochow University, Suzhou, China; NHC Key Laboratory of Thrombosis and Hemostasis, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Qingyu Wu
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Prevention, Soochow University, Suzhou, China
| | - Baishen Pan
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Beili Wang
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, China; Cancer Center, Shanghai Zhongshan Hospital, Fudan University, Shanghai, China; Department of Laboratory Medicine, Xiamen Branch, Zhongshan Hospital, Fudan University, Shanghai, China; Department of Laboratory Medicine, Wusong Branch, Zhongshan Hospital, Fudan University, Shanghai, China; Branch of National Clinical Research Center for Laboratory Medicine, Shanghai, China.
| | - Wei Guo
- Department of Laboratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, China; Cancer Center, Shanghai Zhongshan Hospital, Fudan University, Shanghai, China; Department of Laboratory Medicine, Xiamen Branch, Zhongshan Hospital, Fudan University, Shanghai, China; Department of Laboratory Medicine, Wusong Branch, Zhongshan Hospital, Fudan University, Shanghai, China; Branch of National Clinical Research Center for Laboratory Medicine, Shanghai, China.
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4
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Wang M, Feng Y, Li T, Zhao C, Barcenas AR, Serrano BR, Qu L, Shen M, Zhao W. The Effects of 1-Deoxynojirimycin from Mulberry on Oxidative Stress and Inflammation in Laying Hens and the Direct Effects on Intestine Epithelium Cells In Vitro. Animals (Basel) 2023; 13:2830. [PMID: 37760230 PMCID: PMC10525092 DOI: 10.3390/ani13182830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/23/2023] [Accepted: 09/01/2023] [Indexed: 09/29/2023] Open
Abstract
The intestine is highly vulnerable to various factors and has been proposed as a promising determinant for poultry health. Phytogenic or plant-derived feed additives can be used to help improve intestinal health. In this study, we aimed to investigate the effects of DNJ on the antioxidative parameters, including malondialdehyde (MDA), total superoxide dismutase (T-SOD), catalase (CAT), glutathione peroxidase (GSH-Px), and inflammatory cytokines (IL-6, IL-1β, and TNF-α), in plasma and intestinal tissues using layers supplemented with or without the DNJ extract of mulberry leaves (DNJ-E) via the ELISA method. A total of 192 healthy Hy-Line Brown layers, aged 47 weeks old, were used to conduct a 56-day study. All hens were randomly separated into four groups as follows: a basal diet containing 0 mg/kg DNJ-E(CON), 50 mg/kg, 100 mg/kg, and 150 mg/kg DNJ-E. Furthermore, the potential mechanism by which DNJ influences intestinal function was also investigated in in vitro cultured intestinal epithelium cells (IEC) with quantification methods including the use of a cell counting kit-8 (CCK8), ELISA, qRT-PCR, and ROS detection. The results showed that CAT in plasma significantly increased following 50 mg/kg DNJ-E supplementation. Moreover, 50 mg/kg DNJ-E supplementation was associated with increases in T-SOD in the jejunum and ileum. However, there was no significant difference in inflammatory cytokines between groups in in vivo experiments. Subsequent in vitro IEC studies revealed that cell viability increased significantly following 5 µM and 10 µM DNJ treatments while decreasing significantly following 20 µM DNJ treatment. Antioxidative parameters improved at 5 µM and 10 µM DNJ concentrations. However, there were no ameliorative effects on antioxidant parameters observed under 20 µM DNJ treatment. The expression levels of Nrf2 mRNA increased significantly under DNJ treatment. DNJ treatment was associated with significant changes in the expression of genes of inflammatory cytokines. In conclusion, our study revealed that DNJ could improve oxidative stress and inflammation responses in the chicken intestine. These findings provide a theoretical reference for the development of functional feed additives that regulate intestinal health and lay the foundation for systematically revealing the mechanism of DNJ.
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Affiliation(s)
- Mingzhu Wang
- College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (M.W.); (Y.F.); (T.L.); (C.Z.)
| | - Yuan Feng
- College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (M.W.); (Y.F.); (T.L.); (C.Z.)
| | - Tao Li
- College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (M.W.); (Y.F.); (T.L.); (C.Z.)
| | - Chengfeng Zhao
- College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (M.W.); (Y.F.); (T.L.); (C.Z.)
| | - Adileidys Ruiz Barcenas
- Plant Protein and Bionatural Products Research Center, Havana 999075, Cuba; (A.R.B.); (B.R.S.)
| | - Boris Ramos Serrano
- Plant Protein and Bionatural Products Research Center, Havana 999075, Cuba; (A.R.B.); (B.R.S.)
| | - Liang Qu
- Jiangsu Institute of Poultry Science, Yangzhou 225212, China;
| | - Manman Shen
- College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (M.W.); (Y.F.); (T.L.); (C.Z.)
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
| | - Weiguo Zhao
- College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (M.W.); (Y.F.); (T.L.); (C.Z.)
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Li X, Zhang M, Lu Y, Wu N, Chen J, Ji Z, Zhan Y, Ma X, Chen J, Cai D, Chen S. Metabolic engineering of Bacillus amyloliquefaciens for efficient production of α-glucosidase inhibitor1-deoxynojirimycin. Synth Syst Biotechnol 2023; 8:378-385. [PMID: 37692204 PMCID: PMC10485785 DOI: 10.1016/j.synbio.2023.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 05/13/2023] [Accepted: 05/16/2023] [Indexed: 09/12/2023] Open
Abstract
Owing to the feature of strong α-glucosidase inhibitory activity, 1-deoxynojirimycin (1-DNJ) has broad application prospects in areas of functional food, biomedicine, etc., and this research wants to construct an efficient strain for 1-DNJ production, basing on Bacillus amyloliquefaciens HZ-12. Firstly, using the temperature-sensitive shuttle plasmid T2 (2)-Ori, gene ptsG in phosphotransferase system (PTS) was weakened by homologous recombination, and non-PTS pathway was strengthened by deleting its repressor gene iolR, and 1-DNJ yield of resultant strain HZ-S2 was increased by 4.27-fold, reached 110.72 mg/L. Then, to increase precursor fructose-6-phosphate (F-6-P) supply, phosphofructokinase was weaken, fructose phosphatase GlpX and 6-phosphate glucose isomerase Pgi were strengthened by promoter replacement, moreover, regulator gene nanR was deleted, 1-DNJ yield was further increased to 267.37 mg/L by 2.41-fold. Subsequently, promoter of 1-DNJ synthetase cluster was optimized, as well as 5'-UTRs of downstream genes in synthetase cluster, and 1-DNJ produced by the final strain reached 478.62 mg/L. Last but not the least, 1-DNJ yield of 1632.50 mg/L was attained in 3 L fermenter, which was the highest yield of 1-DNJ reported to date. Taken together, our results demonstrated that metabolic engineering was an effective strategy for 1-DNJ synthesis, this research laid a foundation for industrialization of functional food and drugs based on 1-DNJ.
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Affiliation(s)
- Xujie Li
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan, 430062, China
| | - Meng Zhang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan, 430062, China
| | - Yu Lu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Ningyang Wu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan, 430062, China
| | - Jian'gang Chen
- Wuhan Jun'an Biotechnology Co., Ltd., Wuhan, 430070, China
| | - Zhixia Ji
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yangyang Zhan
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan, 430062, China
| | - Xin Ma
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan, 430062, China
| | - Junyong Chen
- Department of Urology, Zhuhai People's Hospital (Zhuhai Hospital Affiliated to Jinan University), Zhuhai, 519000, China
| | - Dongbo Cai
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan, 430062, China
| | - Shouwen Chen
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan, 430062, China
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Zhu Y, Han Y, Wang W, Liang G, Qi J. Mulberry leaves attenuate D-galactose-induced aging in vivo and in vitro. JOURNAL OF ETHNOPHARMACOLOGY 2023; 311:116286. [PMID: 36965545 DOI: 10.1016/j.jep.2023.116286] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 02/07/2023] [Accepted: 02/13/2023] [Indexed: 06/18/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Mulberry leaves contain many bioactive compounds and have been widely used in traditional medicines and functional foods for prevention and treatment of age-related diseases, such as diabetes, cognitive impairment and obesity-mediated liver cancer. Aging has an irreversible negative impact on human health for many years, even decades, before death, which is a social and economic burden on society. AIM OF THE STUDY The objective of this study was to investigate the antioxidant and anti-aging effects of mulberry leaf extract (MLE) in vivo and in vitro. MATERIALS AND METHODS The Caenorhabditis elegans (C. elegans) was used as a model organism to observe the effects of different concentrations of MLE (1, 2, 4, 8 mg/mL) on nematodes' healthy lifespan, reproductive capacity, locomotion, stress resistance, and antioxidation. In addition, D-galactose (D-gal) induced liver aging in mice and L-02 cells were established. The antioxidant and anti-aging effects of MLE were evaluated by body weight, organ indexes, malondialdehyde (MDA), total superoxide dismutase (T-SOD), total antioxidant capacity (T-AOC), aspartate and alanine aminotransferases (AST and ALT), reactive oxygen species (ROS), mitochondrial membrane potential (MMP), hematoxylin and eosin (H&E), senescence-associated β-galactosidase (SA-β-Gal). Besides, the expressions of AMPK/SIRT1/PGC-1α and Nrf2-Keap1 were detected by Western blotting. RESULTS MLE could significantly prolonged nematodes' average life span and improved most physiological indicators related to aging of C. elegans. Moreover, Treatment with MLE ameliorated the decreased body weight and organ index (weight of organ/body weight) in model mice, and protected against oxidative stress in mice and liver cells, in a dose-dependent manner, up-regulating T-SOD and T-AOC, while reducing ROS and MDA levels. MLE decreased both liver and cell levels of AST and ALT, and enhanced the mitochondrial membrane potential. MLE activated the AMPK/SIRT1/PGC-1α pathways, participated in mitochondrial biosynthesis and oxidative metabolism and delayed D-gal-induced aging. MLE promoted the accumulation of Nrf2 in the nucleus, indicating that the improved oxidative stress response was mediated by the Nrf2-Keap1 pathway in vivo and in vitro. CONCLUSION MLE appeared to have great potential for stimulating the oxidative stress response and attenuating the aging process of in vivo and in vitro, and provide a novel health-promoting resource against aging and aging-related diseases.
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Affiliation(s)
- Yan Zhu
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China
| | - Yaping Han
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China
| | - Wuyang Wang
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China
| | - Guangming Liang
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China
| | - Jin Qi
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China.
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Lange E, Kęszycka PK, Pałkowska-Goździk E, Billing-Marczak K. Comparison of Glycemic Response to Carbohydrate Meals without or with a Plant-Based Formula of Kidney Bean Extract, White Mulberry Leaf Extract, and Green Coffee Extract in Individuals with Abdominal Obesity. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:12117. [PMID: 36231426 PMCID: PMC9566345 DOI: 10.3390/ijerph191912117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 09/21/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
Due to the rising prevalence of obesity and type 2 diabetes, a strategy that can positively influence diet quality in a simple way is being explored, since a low glycemic index (GI) diet is advised in the dietoprophylaxis and diet therapy of diabetes. Methods: Twenty-three women with abdominal obesity participated in the study. The postprandial glycemic response and glycemic index were determined after three carbohydrate meals (noodle soup, white rice, strawberry sorbet) without or with the addition of a plant-base supplement (extracts of kidney bean, white mulberry leaf, and green coffee) with a potentially hypoglycemic effect. For two products (instant noodle soup and white rice), the addition of the plant supplement resulted in a reduction in glicemic iAUC values (respectively, by: 17.1%, p = 0.005 and 5.3%; p = 0.03; 40.6%, p = 0.004 and 5.3%, p = 0.019). However, this effect was not observed for strawberry sorbet. The blood glucose concentrations 30 min after the consumption of instant noodle soup and white rice with the plant-based formula addition significantly affected the GI value of tested meals (p = 0.0086, r = 0.53; p = 0.0096, r = 0.53), which may indicate the effect of this plant supplement on enterohormone and/or insulin secretion. Conclusion: A formula containing kidney bean, white mulberry leaves, and green coffee extracts may therefore be a notable factor in lowering postprandial glycemia and the GI of carbohydrate foods. However, further research is needed to determine for which food groups and meals its use may be most effective.
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Affiliation(s)
- Ewa Lange
- Department of Dietetics, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences (SGGW-WULS), 159 C Nowoursynowska Street, 02-776 Warsaw, Poland
| | - Paulina Katarzyna Kęszycka
- Department of Dietetics, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences (SGGW-WULS), 159 C Nowoursynowska Street, 02-776 Warsaw, Poland
| | - Ewelina Pałkowska-Goździk
- Department of Dietetics, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences (SGGW-WULS), 159 C Nowoursynowska Street, 02-776 Warsaw, Poland
| | - Katarzyna Billing-Marczak
- Department of Dietetics, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences (SGGW-WULS), 159 C Nowoursynowska Street, 02-776 Warsaw, Poland
- MarMar Investment LLC, ul. Słomińskiego 15/509, 00-195 Warsaw, Poland
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8
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Jiang L, Zhang L, Yang J, Shi H, Zhu H, Zhai M, Lu L, Wang X, Li XY, Yu S, Liu J, Duan W. 1-Deoxynojirimycin attenuates septic cardiomyopathy by regulating oxidative stress, apoptosis, and inflammation via the JAK2/STAT6 signaling pathway. Biomed Pharmacother 2022; 155:113648. [PMID: 36108388 DOI: 10.1016/j.biopha.2022.113648] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 08/31/2022] [Accepted: 09/01/2022] [Indexed: 11/25/2022] Open
Abstract
Cardiac dysfunction caused by sepsis is the predominant reason for death in patients with sepsis. However, the effective drugs for its prevention and the molecular mechanisms remain elusive. 1-Deoxynojirimycin (DNJ), a natural iminopyranose, exhibits various biological properties, such as hypoglycemic, antitumor, antiviral, and anti-inflammatory activities. However, whether DNJ can mediate biological activity resistance in sepsis-induced myocardial injury and the underlying mechanisms are unclear. Janus kinase and signal transducer and activator of transcription (JAK/STAT) signaling is an important pathway for the signal transduction of several key cytokines in the pathogenesis of sepsis, which can transcribe and modulate the host immune response. This study was conducted to confirm whether DNJ mediates oxidative stress, apoptosis, and inflammation in cardiomyocytes, thereby alleviating myocardial injury in sepsis via the JAK2/STAT6 signaling pathway. Septic cardiomyopathy was induced in mice using lipopolysaccharide (LPS), and they were then treated with DNJ. The results showed that DNJ markedly improved sepsis-induced cardiac dysfunction, attenuated reactive oxygen species generation, reduced cardiomyocyte apoptosis, and mitigated inflammation. Mechanistically, increased JAK2/STAT6 phosphorylation was observed in the mouse sepsis models, which decreased significantly after DNJ oral treatment. To further confirm whether DNJ mediates the JAK2/STAT6 pathway, the selective inhibitor fedratinib was used to block the JAK2 signaling pathway in vitro, which enhanced the protective effects of DNJ against the sepsis-induced cardiac damage. Collectively, these findings suggest that DNJ attenuates sepsis-induced myocardial injury by decreasing myocardial oxidative damage, apoptosis, and inflammation via the regulation of the JAK2/STAT6 signaling pathway.
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Affiliation(s)
- LiQing Jiang
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Air Force Medical University, Xi'an, 710032 Shaanxi, China.
| | - LiYun Zhang
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Air Force Medical University, Xi'an, 710032 Shaanxi, China.
| | - JiaChang Yang
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Air Force Medical University, Xi'an, 710032 Shaanxi, China.
| | - Heng Shi
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Air Force Medical University, Xi'an, 710032 Shaanxi, China.
| | - HanZhao Zhu
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Air Force Medical University, Xi'an, 710032 Shaanxi, China.
| | - MengEn Zhai
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Air Force Medical University, Xi'an, 710032 Shaanxi, China.
| | - LinHe Lu
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Air Force Medical University, Xi'an, 710032 Shaanxi, China.
| | - XiaoWu Wang
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Air Force Medical University, Xi'an, 710032 Shaanxi, China.
| | - Xia Yun Li
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Air Force Medical University, Xi'an, 710032 Shaanxi, China.
| | - ShiQiang Yu
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Air Force Medical University, Xi'an, 710032 Shaanxi, China.
| | - JinCheng Liu
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Air Force Medical University, Xi'an, 710032 Shaanxi, China.
| | - WeiXun Duan
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Air Force Medical University, Xi'an, 710032 Shaanxi, China.
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Taghizadeh M, Mohammad Zadeh A, Asemi Z, Farrokhnezhad AH, Memarzadeh MR, Banikazemi Z, Shariat M, Shafabakhsh R. Morus Alba leaf extract affects metabolic profiles, biomarkers inflammation and oxidative stress in patients with type 2 diabetes mellitus: A double-blind clinical trial. Clin Nutr ESPEN 2022; 49:68-73. [PMID: 35623877 DOI: 10.1016/j.clnesp.2022.03.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 03/07/2022] [Accepted: 03/15/2022] [Indexed: 02/08/2023]
Abstract
INTRODUCTION Morus Alba extract, despite its special properties, has been less studied in terms of its effects on metabolic profiles in patients with type 2 diabetes mellitus (T2DM). This study was carried out to determine the effects of Morus Alba extract, known as white mulberry, on liver enzymes, biomarkers of inflammation and oxidative stress, insulin metabolism and lipid profiles in patients with T2DM. METHODS The current randomized, double-blind, placebo-controlled trial was conducted among 60 patients with T2DM. Subjects were randomly divided into 2 groups to receive either Morus Alba extract (300 mg) (n = 30) or placebo (n = 30) twice a day. Fasting blood samples were collected at the baseline and 12 weeks after intervention to quantify related markers. RESULTS Morus Alba extract intake significantly decreased insulin (P = 0.026) and malondialdehyde (MDA) (P < 0.001), and significantly increased HDL-cholesterol concentrations (P = 0.001) compared with the placebo. However, Morus Alba extract intake did not affect other metabolic profiles. CONCLUSIONS The results of this study shown that the 12-week administration of Morus Alba extract among subjects with T2DM had beneficial effects on HDL-cholesterol, insulin and MDA levels, but did not affect other metabolic profiles. The present study was registered in the Iranian website for clinical trials as http://www.irct.ir: IRCT2016081312438N21.
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Affiliation(s)
- Mohsen Taghizadeh
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
| | - Azam Mohammad Zadeh
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
| | - Amir Hosein Farrokhnezhad
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
| | - Mohammad Reza Memarzadeh
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
| | - Zarin Banikazemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
| | - Mohammad Shariat
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
| | - Rana Shafabakhsh
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
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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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11
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Ding Y, Jiang X, Yao X, Zhang H, Song Z, He X, Cao R. Effects of Feeding Fermented Mulberry Leaf Powder on Growth Performance, Slaughter Performance, and Meat Quality in Chicken Broilers. Animals (Basel) 2021; 11:ani11113294. [PMID: 34828025 PMCID: PMC8614317 DOI: 10.3390/ani11113294] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 11/10/2021] [Accepted: 11/10/2021] [Indexed: 12/24/2022] Open
Abstract
Simple Summary Mulberry leaf is widely used in ruminants feeding, such as sheep, beef cattle, and dairy calves. Due to the high content of crude fiber in mature mulberry leaves and branches and the presence of anti-nutritional factors such as tannin, excessive addition will affect the production performance and health of livestock and poultry, and limit its large-scale application in animal production to a certain extent. The disadvantages of woody plants can be improved by microbial fermentation, which can reduce the content of anti-nutritional factors, and increase the content of peptides and amino acids, probiotics, and bioactive components. In this study, Lactobacillus, Saccharomycetes, and Bacillus subtilis were used to make mixed strains to ferment mulberry leaf powder, and different proportions were added to the diet of yellow feathered chicken broilers. The results showed that the addition of fermented mulberry leaf in the diet could improve the digestion and absorption of nutrients, and then improve its growth performance, and increase the contents of inosine monophosphate (IMP), total amino acids, essential amino acids, and delicious amino acids in breast and thigh muscle, and improved polyunsaturated fatty acids and essential fatty acids in breast muscle; this also has a positive effect on improving meat quality. Abstract This study was conducted to investigate the effects of feeding fermented mulberry leaf powder (FMLP) on growth performance, slaughter performance, and meat quality of broilers. A total of 360 1-day-old chickens were randomly divided into 5 groups. The control group was fed basal diet (CON), 3% FMLP, 6% FMLP, 9% FMLP, and 3% unfermented mulberry leaf powder. The (MLP) group was fed basal diet supplemented with 3%, 6%, 9% fermented mulberry leaf powder, and 3% MLP, respectively. The experiment lasted for 56 days, with 1–28 days as the starter phase and 29–56 days as the grower phase. The results on the growth performance showed that diets supplemented with 3% FMLP significantly increased the ratio of villus height to crypt depth in the duodenum, jejunum, and ileum of broilers, enhanced the activity of intestinal amylase and digestibility of dry matter and crude protein, improved the average daily gain (ADG), and decreased the feed to gain ratio (F/G) (p < 0.05). Compared with the control group diet, the 3% FMLP group diet significantly increased the breast muscle yield (p < 0.05), reduced the abdominal fat ratio (0.1 < p < 0.05), and improved the slaughter performance of broilers. The 3% MLP group diet increased the shear force of breast muscle (p < 0.05) and thigh muscle of broilers compared to the control group, and adding FMLP could reverse the above results. Additionally, relative to the control group, FMLP supplementation improved the contents of inosine monophosphate (IMP), total amino acids (TAA), essential amino acids (EAA), and delicious amino acids (DAA) in breast and thigh muscle, and improved polyunsaturated fatty acids (PUFA) and essential fatty acids (EFA) in breast muscle; the 6% and 9% FMLP groups showed preferably such effects (p < 0.05). In conclusion, dietary supplementation of FMLP can improve the digestion and absorption of nutrients, and then improve the growth performance of broilers; it also has a positive effect on improving slaughter performance and meat quality.
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Affiliation(s)
- Yanan Ding
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China; (Y.D.); (X.J.); (X.Y.); (H.Z.); (Z.S.)
| | - Xiaodie Jiang
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China; (Y.D.); (X.J.); (X.Y.); (H.Z.); (Z.S.)
| | - Xiaofeng Yao
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China; (Y.D.); (X.J.); (X.Y.); (H.Z.); (Z.S.)
| | - Haihan Zhang
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China; (Y.D.); (X.J.); (X.Y.); (H.Z.); (Z.S.)
- Hunan Engineering Research Center of Poultry Production Safety, Changsha 410128, China
- Ministry of Education Engineering Research Center of Feed Safety and Efficient Use, Changsha 410128, China
| | - Zehe Song
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China; (Y.D.); (X.J.); (X.Y.); (H.Z.); (Z.S.)
- Hunan Engineering Research Center of Poultry Production Safety, Changsha 410128, China
- Ministry of Education Engineering Research Center of Feed Safety and Efficient Use, Changsha 410128, China
| | - Xi He
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China; (Y.D.); (X.J.); (X.Y.); (H.Z.); (Z.S.)
- Hunan Engineering Research Center of Poultry Production Safety, Changsha 410128, China
- Ministry of Education Engineering Research Center of Feed Safety and Efficient Use, Changsha 410128, China
- Correspondence: (X.H.); (R.C.)
| | - Rong Cao
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China; (Y.D.); (X.J.); (X.Y.); (H.Z.); (Z.S.)
- Hunan Engineering Research Center of Poultry Production Safety, Changsha 410128, China
- Ministry of Education Engineering Research Center of Feed Safety and Efficient Use, Changsha 410128, China
- Correspondence: (X.H.); (R.C.)
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12
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Parida IS, Takasu S, Nakagawa K. A comprehensive review on the production, pharmacokinetics and health benefits of mulberry leaf iminosugars: Main focus on 1-deoxynojirimycin, d-fagomine, and 2-O-ɑ-d-galactopyranosyl-DNJ. Crit Rev Food Sci Nutr 2021:1-29. [PMID: 34658276 DOI: 10.1080/10408398.2021.1989660] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Mulberry leaves are rich in biologically active compounds, including phenolics, polysaccharides, and alkaloids. Mulberry leaf iminosugars (MLIs; a type of polyhydroxylated alkaloids), in particular, have been gaining increasing attention due to their health-promoting effects, including anti-diabetic, anti-obesity, anti-hyperglycemic, anti-hypercholesterolemic, anti-inflammatory, and gut microbiota-modulatory activities. Knowledge regarding the in vivo bioavailability and bioactivity of MLIs are crucial to understand their role and function and human health. Therefore, this review is aimed to comprehensively summarize the existing studies on the oral pharmacokinetics and the physiological significance of selected MLIs (i.e.,1-deoxynojirimycin, d-fagomine, and 2-O-ɑ-d-galactopyranosyl-DNJ). Evidence have suggested that MLIs possess relatively good uptake and safety profiles, which support their prospective use for oral intake; the therapeutic potential of these compounds against metabolic and chronic disorders and the underlying mechanisms behind these effects have also been studied in in vitro and in vivo models. Also discussed are the biosynthetic pathways of MLIs in plants, as well as the agronomic and processing factors that affect their concentration in mulberry leaves-derived products.
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Affiliation(s)
| | - Soo Takasu
- Laboratory of Pharmaceutical Analytical Chemistry, Gifu Pharmaceutical University, Gifu, Japan
| | - Kiyotaka Nakagawa
- Food and Biodynamic Chemistry Laboratory, Tohoku University, Sendai, Japan
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13
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Xv ZC, He GL, Wang XL, Shun H, Chen YJ, Lin SM. Mulberry leaf powder ameliorate high starch-induced hepatic oxidative stress and inflammation in fish model. Anim Feed Sci Technol 2021. [DOI: 10.1016/j.anifeedsci.2021.115012] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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14
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Wang Y, Yu Z, Jiang J, Li Y, Yu S. Mulberry leaf attenuates atherosclerotic lesions in patients with coronary heart disease possibly via 1-Deoxynojirimycin: A placebo-controlled, double-blind clinical trial. J Food Biochem 2020; 45:e13573. [PMID: 33277698 DOI: 10.1111/jfbc.13573] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 10/28/2020] [Accepted: 11/09/2020] [Indexed: 12/25/2022]
Abstract
Mulberry leaf tea reduces atherosclerotic lesions and its main component is Deoxynojirimycin (DNJ). We aimed to explore the effects of Mulberry leaf DNJ (MLD) on atherosclerotic lesions in the patients with coronary heart disease (CHD). MLD and serum DNJ was detected by high-performance liquid chromatography (HPLC). The CHD patients with low-density lipoprotein cholesterol >140 mg/dl were assigned into the EG (MLD treatment) and the CG (placebo treatment) groups. Serum biochemical indices, the cerebrovascular and cardiovascular events and carotid intima-media thickness (IMT) were measured before and after a 1-year intervention. Pearson Correlation Coefficient test was used to explore the relationship between serum levels of DNJ and IMT values. Serum DNJ was 70 ± 50 ng/ml in the EG group but no serum DNJ was detected in the CG group. The incidence of cerebrovascular and cardiovascular events in the EG was lower than that in the CG group (p < .05). MLD therapy improved antioxidant and anti-inflammatory properties and serum lipid profile (p < .05). The IMT values in the EG group were lower than those in the CG group (p < .05). Serum levels of DNJ had a strong negative relationship with IMT values. MLD treatment attenuates atherosclerotic lesions possibly via DNJ. PRACTICAL APPLICATIONS: Mulberry leaves Deoxynojirimycin (MLD) treatment improved antioxidant and anti-inflammatory properties and serum lipid profile in heart disease patients. MLD reduce carotid intima-media thickness (IMT) and serum levels of DNJ (the main ingredient of mulberry leaf) had a strong relationship with IMT values. MLD is an amazing treat used for reducing the incidence of cerebrovascular and cardiovascular events in heart disease patients.
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Affiliation(s)
- Yuting Wang
- Department of Cardiovascular, The First Hospital of Jilin University, Changchun, China
| | - Zhongwei Yu
- The Third Operating Room, The First Hospital of Jilin University, Changchun, China
| | - Jun Jiang
- Department of Cardiovascular, The First Hospital of Jilin University, Changchun, China
| | - Yaxin Li
- Department of Cardiovascular, The First Hospital of Jilin University, Changchun, China
| | - Shui Yu
- Department of Cardiovascular, The First Hospital of Jilin University, Changchun, China
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15
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Deng S, Li D, Liu X, Cai Z, Wei W, Chen J, Zhang L. Serum metabolomic investigations of mulberry leaf powder supplementation in Chinese Erhualian pigs. JOURNAL OF ANIMAL AND FEED SCIENCES 2020. [DOI: 10.22358/jafs/124043/2020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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16
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Takasu S, Parida IS, Ito J, Kojima Y, Eitsuka T, Kimura T, Nakagawa K. Intestinal Absorption and Tissue Distribution of Aza-Sugars from Mulberry Leaves and Evaluation of Their Transport by Sugar Transporters. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:6656-6663. [PMID: 32449853 DOI: 10.1021/acs.jafc.0c03005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Mulberry leaves are rich in aza-sugars, particularly 1-deoxynojirimycin (DNJ), fagomine, and 2-O-α-d-galactopyranosyl-1-deoxynojirimycin (GAL-DNJ), which have antidiabetes and antiobesity properties. To help us understand the mechanisms of action of aza-sugars, pharmacokinetic studies are necessary. Therefore, in this study, we evaluated and compared the absorption and organ distribution of these aza-sugars in rats. Following oral intake, DNJ exhibited the highest plasma concentration followed by fagomine and GAL-DNJ. Meanwhile, similar amounts of DNJ and fagomine were present in organs, while GAL-DNJ was hardly detected, suggesting the diversity in absorption and distribution characteristics of these aza-sugars. We then investigated the role of the sodium-glucose cotransporter and the glucose transporter (GLUT) in the transport of aza-sugars and found that both are involved in DNJ transport, while transport of fagomine is solely facilitated by the GLUT. These findings provide insight into the bioavailability and bioactive mechanisms of these aza-sugars.
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Affiliation(s)
- Soo Takasu
- Food and Biodynamic Chemistry Laboratory, Tohoku University Graduate School of Agricultural Science Faculty of Agriculture, Graduate School of Agricultural Science 468-1, Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi, 980-8572, Japan
| | - Isabella S Parida
- Food and Biodynamic Chemistry Laboratory, Tohoku University Graduate School of Agricultural Science Faculty of Agriculture, Graduate School of Agricultural Science 468-1, Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi, 980-8572, Japan
| | - Junya Ito
- Food and Biodynamic Chemistry Laboratory, Tohoku University Graduate School of Agricultural Science Faculty of Agriculture, Graduate School of Agricultural Science 468-1, Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi, 980-8572, Japan
| | - Yoshihiro Kojima
- Minato Pharmaceutical Co., Ltd., 1-14-11, Ginza, Chuo-ku, Tokyo, 104-0061, Japan
| | - Takahiro Eitsuka
- Food and Biodynamic Chemistry Laboratory, Tohoku University Graduate School of Agricultural Science Faculty of Agriculture, Graduate School of Agricultural Science 468-1, Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi, 980-8572, Japan
| | - Toshiyuki Kimura
- National Agriculture and Food Research Organization, Division of Food Function Research, 2-1-12 Kannondai, Tsukuba, Ibaraki, 305-8517, Japan
| | - Kiyotaka Nakagawa
- Food and Biodynamic Chemistry Laboratory, Tohoku University Graduate School of Agricultural Science Faculty of Agriculture, Graduate School of Agricultural Science 468-1, Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi, 980-8572, Japan
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Yang X, Zhang P, Zhang F, Ke Z, Chen Q, Liu C. Protective effect of hypoglycemic granule against diabetes‐induced liver injury by alleviating glycolipid metabolic disorder and oxidative stress. J Cell Biochem 2020; 121:3221-3234. [DOI: 10.1002/jcb.29588] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 12/09/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Xiaosong Yang
- Hubei Key Laboratory of Diabetes and AngiopathyHubei University of Science and TechnologyXianning China
| | - Pengjie Zhang
- Hubei Key Laboratory of Diabetes and AngiopathyHubei University of Science and TechnologyXianning China
| | - Feixue Zhang
- Hubei Key Laboratory of Diabetes and AngiopathyHubei University of Science and TechnologyXianning China
| | - Zhiqiang Ke
- Hubei Key Laboratory of Diabetes and AngiopathyHubei University of Science and TechnologyXianning China
| | - Qingjie Chen
- Hubei Key Laboratory of Diabetes and AngiopathyHubei University of Science and TechnologyXianning China
| | - Chao Liu
- Hubei Key Laboratory of Diabetes and AngiopathyHubei University of Science and TechnologyXianning China
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Suthamwong P, Minami M, Okada T, Shiwaku N, Uesugi M, Yokode M, Kamei K. Administration of mulberry leaves maintains pancreatic β-cell mass in obese/type 2 diabetes mellitus mouse model. BMC Complement Med Ther 2020; 20:136. [PMID: 32375753 PMCID: PMC7201661 DOI: 10.1186/s12906-020-02933-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 04/22/2020] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Type 2 diabetes mellitus is characterized by insulin resistance and pancreatic β-cell dysfunction. A decrease in β-cell mass, which occurs during the progression of Type 2 diabetes mellitus, contributes to impaired insulin secretion. Mulberry leaves contain various nutritional components that exert anti-diabetic and anti-atherogenic effects. The present study analyzed the effects of mulberry leaf intake on pancreatic β-cells to clarify the mechanisms underlying its anti-diabetic function. METHODS Mulberry leaves (Morus alba L.) were dried at 180 °C for 8 s in a hot-air mill and fed to obesity/Type 2 diabetes mellitus db/db mouse models at 5% (w/w) as part of a normal diet from 7 to 10, 15, or 20 weeks of age. An intraperitoneal glucose tolerance test was then performed on the mice. To evaluate the β-cell mass, the pancreas was subjected to immunohistological analysis with an anti-insulin antibody. A TUNEL assay and immunohistological analysis with a proliferation marker was also performed. Expression levels of endoplasmic reticulum stress-responsible genes and proliferation markers were assessed by quantitative RT-PCR. RESULTS Intake of mulberry leaves maintained the β-cell function of db/db mice. Moreover, oral administration of mulberry leaves significantly decreased cell death by reducing endoplasmic reticulum stress in the pancreas. Mulberry leaves significantly increased proliferation of β-cells and the expression of pancreatic duodenal homeobox1 mRNA in the pancreas. CONCLUSION Considered together, these results indicate that dietary mulberry leaf administration can maintain insulin levels and pancreatic β-cell mass, at least in part, by suppressing endoplasmic reticulum stress in Type 2 diabetes mellitus mouse models.
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Affiliation(s)
- Patlada Suthamwong
- Department of Functional Chemistry, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan.,Department of Clinical Innovative Medicine, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Manabu Minami
- Department of Clinical Innovative Medicine, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Toshiaki Okada
- Department of Functional Chemistry, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Nonomi Shiwaku
- Department of Functional Chemistry, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Mai Uesugi
- Department of Functional Chemistry, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Masayuki Yokode
- Department of Clinical Innovative Medicine, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Kaeko Kamei
- Department of Functional Chemistry, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan.
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Liu T, Tan F, Long X, Pan Y, Mu J, Zhou X, Yi R, Zhao X. Improvement Effect of Lotus Leaf Flavonoids on Carbon Tetrachloride-Induced Liver Injury in Mice. Biomedicines 2020; 8:E41. [PMID: 32102401 PMCID: PMC7169453 DOI: 10.3390/biomedicines8020041] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 02/23/2020] [Accepted: 02/24/2020] [Indexed: 02/07/2023] Open
Abstract
In this study, the effect of lotus leaf flavonoids (LLF) on carbon tetrachloride (CCl4)-induced liver injury in mice was studied. CCl4 was injected intraperitoneally to induce liver injury in Kunming mice. Mice were treated with LLF by gavage, and the mRNA expression levels in serum and liver were detected. Compared with the model group, LLF significantly reduced the liver index and serum aspartate aminotransferase (AST), alanine aminotransferase (ALT), triglyceride (TG), and total cholesterol (TC) levels in mice with CCl4-induced liver injury. Pathological observation showed that LLF effectively reduced morphological incompleteness and hepatocyte necrosis in CCl4-treated liver tissue. The result of quantitative polymerase chain reaction (qPCR) indicated that LLF significantly up-regulated the mRNA expression levels of copper/zinc superoxide dismutase (Cu/Zn-SOD), manganese superoxide dismutase (Mn-SOD), and catalase (CAT) and down- regulated the expression levels of tumor necrosis factor-alpha (TNF-α), nuclear factor kappa B (NF-κB), and interleukin-1β (IL-1β) (p < 0.05). Thus, LLF is an active ingredient that ameliorates liver injury, and it has good application prospect.
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Affiliation(s)
- Tongji Liu
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing 400067, China; (T.L.); (X.L.); (Y.P.); (J.M.); (X.Z.)
- Chongqing Engineering Research Center of Functional Food, Chongqing University of Education, Chongqing 400067, China
- Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing 400067, China
- College of Biological and Chemical Engineering, Chongqing University of Education, Chongqing 400067, China
| | - Fang Tan
- Department of Public Health, Our Lady of Fatima University, Valenzuela 838, Philippines;
| | - Xingyao Long
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing 400067, China; (T.L.); (X.L.); (Y.P.); (J.M.); (X.Z.)
- Chongqing Engineering Research Center of Functional Food, Chongqing University of Education, Chongqing 400067, China
- Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing 400067, China
| | - Yanni Pan
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing 400067, China; (T.L.); (X.L.); (Y.P.); (J.M.); (X.Z.)
- Chongqing Engineering Research Center of Functional Food, Chongqing University of Education, Chongqing 400067, China
- Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing 400067, China
| | - Jianfei Mu
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing 400067, China; (T.L.); (X.L.); (Y.P.); (J.M.); (X.Z.)
- Chongqing Engineering Research Center of Functional Food, Chongqing University of Education, Chongqing 400067, China
- Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing 400067, China
| | - Xianrong Zhou
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing 400067, China; (T.L.); (X.L.); (Y.P.); (J.M.); (X.Z.)
- Chongqing Engineering Research Center of Functional Food, Chongqing University of Education, Chongqing 400067, China
- Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing 400067, China
| | - Runkun Yi
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing 400067, China; (T.L.); (X.L.); (Y.P.); (J.M.); (X.Z.)
- Chongqing Engineering Research Center of Functional Food, Chongqing University of Education, Chongqing 400067, China
- Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing 400067, China
| | - Xin Zhao
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing 400067, China; (T.L.); (X.L.); (Y.P.); (J.M.); (X.Z.)
- Chongqing Engineering Research Center of Functional Food, Chongqing University of Education, Chongqing 400067, China
- Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing 400067, China
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Hu S, Wang J, Yan X, Yang H, Li S, Jiang W, Liu Y. Egg oil from Portunus trituberculatus alleviates insulin resistance through activation of insulin signaling in mice. Appl Physiol Nutr Metab 2019; 44:1081-1088. [PMID: 30802144 DOI: 10.1139/apnm-2018-0718] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2023]
Abstract
Marine bioactive lipids have been utilized to overcome insulin resistance. However, oil from swimming crab has never been studied. Here, we analyzed the constituents of egg oil from Portunus trituberculatus (Pt-egg oil) and investigated its protective effects against insulin resistance in mice on a high-fat diet. The results showed that Pt-egg oil contained 52.05% phospholipids, 8.61% free fatty acids (especially eicosapentaenoic acid and docosahexaenoic acid), 32.38% triglyceride, 4.79% total cholesterol, and ditissimus astaxanthin. Animal experiments showed that Pt-egg oil significantly mitigated insulin resistance and was associated with reductions in blood glucose, insulin, glucose tolerance, insulin tolerance, serum lipids, and hepatic glycogen. Pt-egg oil activated the phosphatidylinositol 3-hydroxy kinase (PI3K)/protein kinase B (Akt)/glucose transporter 4 pathway in skeletal muscle both at the transcriptional level and at the translational level. Pt-egg oil also promoted hepatic glycogen synthesis through activation of the PI3K/Akt/glycogen synthase kinase-3 beta pathway. These indicate that Pt-egg oil can be used as an alternative to marine bioactive lipids to improve insulin resistance.
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Affiliation(s)
- Shiwei Hu
- Innovation Application Institute, Zhejiang Ocean University, Zhoushan, Zhoushan, 316022, China
| | - Jingfeng Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong Province 266003, China
| | - Xiaojun Yan
- Innovation Application Institute, Zhejiang Ocean University, Zhoushan, Zhoushan, 316022, China
| | - Huicheng Yang
- Zhejiang Marine Development Research Institute, Zhoushan 316021, China
| | - Shijie Li
- Innovation Application Institute, Zhejiang Ocean University, Zhoushan, Zhoushan, 316022, China
| | - Wei Jiang
- Innovation Application Institute, Zhejiang Ocean University, Zhoushan, Zhoushan, 316022, China
| | - Yu Liu
- Innovation Application Institute, Zhejiang Ocean University, Zhoushan, Zhoushan, 316022, China
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Bedi O, Aggarwal S, Trehanpati N, Ramakrishna G, Krishan P. Molecular and Pathological Events Involved in the Pathogenesis of Diabetes-Associated Nonalcoholic Fatty Liver Disease. J Clin Exp Hepatol 2019; 9:607-618. [PMID: 31695251 PMCID: PMC6823706 DOI: 10.1016/j.jceh.2018.10.004] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Accepted: 10/30/2018] [Indexed: 12/12/2022] Open
Abstract
Diabetes mellitus is a rising epidemic in most part of the world and is often associated with multiple organ disorders such as kidney, liver, and cardiovascular diseases. Liver is a major metabolic hub, and the metabolic disorders associated with diabetes result in liver dysfunctions culminating in spectrum of liver diseases such as fatty liver disorders, cirrhosis, and hepatocellular carcinoma. The intervention strategies to prevent diabetes-associated liver injury require an overall understanding of the key factors and molecular pathways which can be strategically targeted. The present review focuses on some of the key aspects of fatty acid metabolism, fetuin-A regulation, inflammatory pathways, and genetic factors associated with insulin resistance, dyslipidemia, hyperglycemia, oxidative stress, and so on involved in the nexus between diabetes and liver injury. Further recent interventions, pharmacological target, and newer therapeutic agents are discussed briefly for the better clinical management of diabetes-associated hepatic disorders.
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Key Words
- AP-1, Activator protein 1
- DLI, diabetic liver injury
- DM, diabetes mellitus
- DMPs, Damage-associated molecular patterns
- FFA, free fatty acid
- FOXO1, Forkhead box protein O1
- FetA, fetuin-A
- G6Pase, Glucose-6-phosphatase
- HCC, hepatocellular carcinoma
- IKK, IκB kinase
- IL, interleukin
- IRS2, Insulin receptor substrate-2
- IκB, Inhibitor of Kb
- LPS, Lipopolysaccharide
- MD2, Myeloid differentiation protein-2
- MMP, matrix metalloproteinase
- MyD88, Myeloid differentiation factor 88
- NAFLD, nonalcoholic fatty liver disease
- NASH, nonalcoholic steatohepatitis
- NFe κB, Nuclear factor-κB
- NIDDM, noninsulin dependent diabetes mellitus
- PC, Pyruvate carboxylase
- PEPCK, Phosphoenolpyruvate carboxykinase
- PIP3, Phosphatidyl inositol (3, 4, 5)-triphosphate
- T2DM, type 2 diabetes mellitus
- TLR4, Toll-like receptor
- TNF, tumor necrosis factor
- Th 17, T helper 17 cells
- VLDL, very low–density lipoprotein
- diabetes mellitus
- diabetic liver injury
- fetuin-A
- free fatty acid
- inflammatory mediators
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Affiliation(s)
- Onkar Bedi
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab, India
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Savera Aggarwal
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Nirupma Trehanpati
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Gayatri Ramakrishna
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab, India
| | - Pawan Krishan
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab, India
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Preparation of 1-deoxynojirimycin controlled release matrix pellets of capsules and evaluation in vitro-in vivo to enhance bioavailability. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.05.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Thakur K, Zhang YY, Mocan A, Zhang F, Zhang JG, Wei ZJ. 1-Deoxynojirimycin, its potential for management of non-communicable metabolic diseases. Trends Food Sci Technol 2019. [DOI: 10.1016/j.tifs.2019.05.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Hypoglycemic effects of esculeoside A are mediated via activation of AMPK and upregulation of IRS-1. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 19:136. [PMID: 31215434 PMCID: PMC6582491 DOI: 10.1186/s12906-019-2543-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 06/03/2019] [Indexed: 02/06/2023]
Abstract
Background Tomato fruit (Lycopersicon esculentum Mill.) has been suggested to be useful for the prevention of diabetes. Esculeoside A is the main saponin compounds in tomatoes. This study investigated the hypoglycemic effects and the underlying mechanism of esculeoside A in C57BLKS/Leprdb (db/db) mice. Methods Wild-type C57BLKS (db/dm) mice were used in the db/dm mouse group and db/db mice were randomly divided into 2 groups: untreated and treated db/db mouse groups. Esculeoside A (100 mg/kg) was administered by gavage for 56 days to the treated db/db mouse group. Distilled water was administered to the db/dm mouse group and the untreated db/db mouse group. The blood and liver biochemical parameters and the expression of liver insulin signaling-related proteins were examined. Results The results showed that esculeoside A reduced the fasting blood glucose (FBG) levels and improved the glucose tolerance. Further investigation revealed that hepatic protein expressions of total AMP-activated protein kinase (T-AMPK), phosphorylated AMP-activated protein kinase (p-AMPK), insulin receptor substrate-1 (IRS-1), and glucokinase (GCK) were significantly upregulated after esculeoside A treatment. In contrast, the hepatic protein expression of phosphoenolpyruvate carboxykinase (PEPCK) was significantly downregulated by esculeoside A treatment. Conclusion These findings suggested that esculeoside A has a potential of alleviating the metabolic abnormalities in db/db mice via regulation of AMPK/IRS-1 pathway. Our findings supported a possible application of esculeoside A as a functional supplement for diabetes treatment.
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Zheng J, Zhu L, Hu B, Zou X, Hu H, Zhang Z, Jiang N, Ma J, Yang H, Liu H. 1-Deoxynojirimycin improves high fat diet-induced nonalcoholic steatohepatitis by restoring gut dysbiosis. J Nutr Biochem 2019; 71:16-26. [PMID: 31272028 DOI: 10.1016/j.jnutbio.2019.05.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 05/11/2019] [Accepted: 05/16/2019] [Indexed: 12/12/2022]
Abstract
Non-alcoholic steatohepatitis (NASH) is associated with chronic inflammation and gut bacterial dysbiosis. Studies show that 1-deoxynojirimycin (DNJ) may improve NASH, yet the role of gut microbiota in protective effect of DNJ on NASH remains to be known. In present study, we aimed to examine how DNJ ameliorated high-fat diet (HFD)-induced mouse NASH through the regulation of gut microbiota dysbiosis. C57BL/6 J mice fed with HFD were treated with DNJ (0.1 mg/mL, in drinking water) for 4 months. The results by using histochemical staining and qPCR confirmed that DNJ remarkably modulated glucose intolerance and hyperlipidemia, attenuated hepatic steatosis and systemic chronic inflammation in HFD-induced mice. Moreover, DNJ greatly reshaped the structure of disbalanced intestinal flora, as indicated by the enhanced bacterial richness and diversity, the decreased Firmicutes-to-Bacteroidetess ratio and the increased Akkermansia level. The prediction algorithm suggests that DNJ may extensively dampen the bacterial motility and bacterial energy metabolism. Consistently, the altered gut microbiota was closely correlated with metabolic biomarkers of mice with NASH. Based on our studies, DNJ could alleviate the progress of HFD-induced NASH by rebuilding the gut microbial community structure, suggesting that DNJ may serve as a functional food to prevent or treat NASH clinically.
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Affiliation(s)
- Junping Zheng
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, Hubei, China
| | - Lin Zhu
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, Hubei, China
| | - Baifei Hu
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, Hubei, China
| | - Xiaojuan Zou
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, Hubei, China
| | - Haiming Hu
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, Hubei, China
| | - Zhigang Zhang
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, Hubei, China
| | - Nan Jiang
- Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, Hubei, China
| | - Jun Ma
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, Hubei, China
| | - Huabing Yang
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, Hubei, China.
| | - Hongtao Liu
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, Hubei, China.
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PARIDA IS, TAKASU S, ITO J, IKEDA R, YAMAGISHI K, KIMURA T, MIYAZAWA T, EITSUKA T, NAKAGAWA K. Physiological Effects and Organ Distribution of Bacillus amyloliquefaciens AS385 Culture Broth Powder Containing 1-Deoxynojirimycin in C57BL/6J Mice. J Nutr Sci Vitaminol (Tokyo) 2019; 65:157-163. [DOI: 10.3177/jnsv.65.157] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Isabella Supardi PARIDA
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University
| | - Soo TAKASU
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University
| | - Junya ITO
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University
| | | | - Kenji YAMAGISHI
- Food Research Institute (NFRI), National Agriculture and Food Research Organization (NARO)
| | - Toshiyuki KIMURA
- Food Research Institute (NFRI), National Agriculture and Food Research Organization (NARO)
| | - Teruo MIYAZAWA
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University
- New Industry Creation Hatchery Center (NICHe), Tohoku University
| | - Takahiro EITSUKA
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University
| | - Kiyotaka NAKAGAWA
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University
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Thaipitakwong T, Numhom S, Aramwit P. Mulberry leaves and their potential effects against cardiometabolic risks: a review of chemical compositions, biological properties and clinical efficacy. PHARMACEUTICAL BIOLOGY 2018; 56:109-118. [PMID: 29347857 PMCID: PMC6130672 DOI: 10.1080/13880209.2018.1424210] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 12/18/2017] [Accepted: 01/02/2018] [Indexed: 06/07/2023]
Abstract
CONTEXT Cardiometabolic risks are regarded as the crucial factors associated with type 2 diabetes (T2DM) and cardiovascular diseases (CVD). Regarding an increased attention to medicinal plants in the current healthcare system, the effects of mulberry (Morus spp., Moraceae) leaves on cardiometabolic risks have been consecutively considered in scientific research. OBJECTIVE The present review compiles and summarizes the chemical compositions, biological properties and clinical efficacy of mulberry leaves that are related to the amelioration of cardiometabolic risks. METHODS Published English literature from the PubMed, Science Direct and Google Scholar databases was searched by using 'mulberry leaves' 'Morus spp.', 'hyperglycemia', 'hyperlipidemia', 'obesity', 'hypertension', 'oxidative stress', 'atherosclerosis' and 'cardiovascular diseases' as the keywords. The relevant articles published over the past two decades were identified and reviewed. RESULTS Mulberry leaves contain numerous chemical constituents. 1-Deoxynojirimycin (DNJ), phenolics and flavonoids are the prominent functional compounds. Preclinical and clinical studies showed that mulberry leaves possessed various beneficial effects against cardiometabolic risks, including antihyperglycaemic, antihyperlipidaemic, antiobesity, antihypertensive, antioxidative, anti-inflammatory, anti-atherosclerotic and cardioprotective effects. CONCLUSIONS Mulberry leaves could be a promising therapeutic option for modulating cardiometabolic risks. However, further investigations should be performed to substantiate the potential of mulberry leaves in practical uses.
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Affiliation(s)
- Thanchanit Thaipitakwong
- Bioactive Resources for Innovative Clinical Applications Research Unit and Department of Pharmacy Practice, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
| | - Surawej Numhom
- Department of Surgery, Faculty of Medicine, Plastic and Maxillofacial Surgery, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Pornanong Aramwit
- Bioactive Resources for Innovative Clinical Applications Research Unit and Department of Pharmacy Practice, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand
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Daliu P, Santini A, Novellino E. A decade of nutraceutical patents: where are we now in 2018? Expert Opin Ther Pat 2018; 28:875-882. [PMID: 30484340 DOI: 10.1080/13543776.2018.1552260] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
INTRODUCTION In the last 10 years, nutraceuticals have grown in interest to researchers, industry, and consumers and are now familiar in the collective imagination as a tool for preventing the onset of a disease. Often nutraceuticals are confused with biologically active phytochemicals/botanicals which can have health benefits. This is a misunderstanding however as the term nutraceutical refers to a product that must have a beneficial effect on health proven by clinical testing. Areas covered: A search has been performed on both recent patents and the literature regarding nutraceuticals focusing on the beneficial and proven health effects on pathological conditions to give an overview of the state-of-the-art developments in this area. Patents and literature data addressing specific pathological conditions are discussed. Expert opinion: Nutraceuticals represent a challenge for the future of drug-based pharmacotherapy, and, at the same time, are a powerful tool for the prevention of chronic disease. They are not proposed as an alternative to drugs, but instead, can be helpful to complement a pharmacological therapy and prevent the onset of chronic diseases in subjects who do not qualify for conventional pharmacological treatment.
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Affiliation(s)
- Patricia Daliu
- a Department of Pharmacy , University of Napoli Federico II , Napoli , Italy
| | - Antonello Santini
- a Department of Pharmacy , University of Napoli Federico II , Napoli , Italy
| | - Ettore Novellino
- a Department of Pharmacy , University of Napoli Federico II , Napoli , Italy
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Liu J, Zhang HR, Hou YB, Jing XL, Song XY, Shen XP. Global gene expression analysis in liver of db/db mice treated with catalpol. Chin J Nat Med 2018; 16:590-598. [PMID: 30197124 DOI: 10.1016/s1875-5364(18)30096-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2017] [Indexed: 10/28/2022]
Abstract
Catalpol, a major bioactive component from Rehmannia glutinosa, which has been used to treat diabetes. The present study was designed to elucidate the anti-diabetic effect and mechanism of action for catalpol in db/db mice. The db/db mice were randomly divided into six groups (10/group) according to their blood glucose levels: db/db control, metformin (positive control), and four dose levels of catalpol treatment (25, 50, 100, and 200 mg·kg-1), and 10 db/m mice were used as the normal control. All the groups were administered orally for 8 weeks. The levels of fasting blood glucose (FBG), random blood glucose (RBG), glucose tolerance, insulin tolerance, and glycated serum protein (GSP) and the globe gene expression in liver tissues were analyzed. Our results showed that catalpol treatment obviously reduced water intake and food intake in a dose-dependent manner. Catalpol treatment also remarkably reduce fasting blood glucose (FBG) and random blood glucose (RBG) in a dose-dependent manner. The RBG-lowering effect of catalpol was better than that of metformin. Furthermore, catalpol significantly improved glucose tolerance and insulin tolerance via increasing insulin sensitivity. Catalpol treatment significantly decreased GSP level. The comparisons of gene expression in liver tissues among normal control mice, db/db mice and catalpol treated mice (200 and 100 mg·kg-1) indicated that there were significant increases in the expressions of 287 genes, whichwere mainly involved in lipid metabolism, response to stress, energy metabolism, and cellular processes, and significant decreases in the expressions of 520 genes, which were mainly involved in cell growth, death, immune system, and response to stress. Four genes expressed differentially were linked to glucose metabolism or insulin signaling pathways, including Irs1 (insulin receptor substrate 1), Idh2 (isocitrate dehydrogenase 2 (NADP+), mitochondrial), G6pd2 (glucose-6-phosphate dehydrogenase 2), and SOCS3 (suppressor of cytokine signaling 3). In conclusion, catalpol ecerted significant hypoglycemic effect and remarkable therapeutic effect in db/db mice via modulating various gene expressions.
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Affiliation(s)
- Jing Liu
- Tianjin Institute of Pharmaceutical Research Co., Ltd., Tianjin 300301, China; Tianjin Institute of Pharmaceutical Research Drug Safety Assessment Co., Ltd., Tianjin 300301, China
| | - He-Ran Zhang
- Tianjin Institute of Pharmaceutical Research Co., Ltd., Tianjin 300301, China
| | - Yan-Bao Hou
- Tianjin Institute of Pharmaceutical Research Drug Safety Assessment Co., Ltd., Tianjin 300301, China
| | - Xiao-Long Jing
- Tianjin Institute of Pharmaceutical Research Co., Ltd., Tianjin 300301, China; Tianjin Institute of Pharmaceutical Research Drug Safety Assessment Co., Ltd., Tianjin 300301, China
| | - Xin-Yi Song
- Qinghai Yangzong Pharmaceutical Co., Ltd., Xining 810003, China
| | - Xiu-Ping Shen
- Tianjin Institute of Pharmaceutical Research Co., Ltd., Tianjin 300301, China; Tianjin Institute of Pharmaceutical Research Drug Safety Assessment Co., Ltd., Tianjin 300301, China.
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Neuroprotective effect of 1-Deoxynojirimycin on cognitive impairment, β-amyloid deposition, and neuroinflammation in the SAMP8 mice. Biomed Pharmacother 2018; 106:92-97. [DOI: 10.1016/j.biopha.2018.06.106] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 06/18/2018] [Accepted: 06/18/2018] [Indexed: 01/28/2023] Open
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Lee J, Lee HJ, Lee JJ. Coating rice with mulberry leaves rich in deoxynojirimycin ameliorates hyperglycemia and dyslipidemia in C57BL/KsJ db/db mice. Nutr Res Pract 2018; 12:469-478. [PMID: 30515274 PMCID: PMC6277312 DOI: 10.4162/nrp.2018.12.6.469] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 06/07/2018] [Accepted: 08/01/2018] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND/OBJECTIVES Mulberry leaf (ML) has been shown to have an inhibitory effect on α-glucosidase, and suppresses postprandial hyperglycemia, which may be related to its deoxynojirimycin (DNJ) content. This study was conducted to investigate the hypoglycemic and dyslipidemic effects of rice coated with ML rich in DNJ in a type 2 diabetes mouse model. MATERIALS/METHODS The mice were divided into four groups (n = 8 each): non-diabetic normal control (NC); diabetic control (DM-C), fed with 10% polished rice powder (DM-R); and fed with 10% polished rice powder coated with DNJ-rich ML (DM-DNJR). RESULTS Supplementation with DNJR for six weeks decreased levels of fasting blood glucose, plasma insulin, triglyceride, total cholesterol, and blood glycosylated hemoglobin; conversely, levels of glucagon-like peptide-1 and high-density lipoprotein-cholesterol showed an increase in the same treatment. In addition, weights of mesenteric, epididymal, and total adipose tissues decreased with DNJR supplementation, when compared with diabetic control db/db mice, while maltase, lactase, and sucrase activity in the small intestine were inhibited. The anti-diabetic effects were marginally greater in the DM-DNJR group than in the DM-R group. CONCLUSIONS These results suggest that rice coated with ML rich in DNJ can reduce hyperglycemia and hyperlipidemia in db/db mice, and may prove useful for individuals with diabetes.
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Affiliation(s)
- Joomin Lee
- Department of Food and Nutrition, Chosun University, 309 Pilmun-daero, Dong-gu, Gwangju 61452, Korea
| | - Hyun-Joo Lee
- Department of Nutrition and Culinary Science, Hankyong National University, Gyeonggi 17579, Korea
| | - Jae-Joon Lee
- Department of Food and Nutrition, Chosun University, 309 Pilmun-daero, Dong-gu, Gwangju 61452, Korea
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Liang W, Zhang D, Kang J, Meng X, Yang J, Yang L, Xue N, Gao Q, Han S, Gou X. Protective effects of rutin on liver injury in type 2 diabetic db/db mice. Biomed Pharmacother 2018; 107:721-728. [PMID: 30138894 DOI: 10.1016/j.biopha.2018.08.046] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Revised: 08/07/2018] [Accepted: 08/10/2018] [Indexed: 01/23/2023] Open
Abstract
The aim of this study was to evaluate the protective effect of rutin on the liver of type 2 diabetic mice and explore the correlation mechanism. The db/db mice, selected as the type 2 diabetes mellitus (T2DM) models, have random blood glucose (RBG) and glucose level after 2 h of oral glucose loading of more than 16.7 mmol/L. After administration of 120 mg/kg or 60 mg/kg rutin, to T2DM mice, RBG, oral glucose tolerance, alanine aminotransferase (ALT) and aspartate aminotransferase (AST) in serum, and advanced glycation end products (AGEs) in vivo and vitro of different groups were detected. The liver pathological changes were observed under light and electron microscopy. Western blotting was used to detect the protein expression of insulin receptor substrate 2 (IRS-2) and phosphorylation of phosphatidylinositol 3 kinase (PI3K) on p85, Akt on Ser473, glycogen synthase kinase 3β (GSK-3β) on Ser9, real-time quantitative PCR was used to detect IRS-2 mRNA expression. Moreover, dynamically observing the effect of rutin on the generation of AGEs in non-enzymatic protein glycosylated system, Cell Counting Kit-8 (CCK-8) method was used to detect the effect of rutin on proliferation activity of HepG2 liver cells. The results showed that RBG and glucose levels of oral glucose tolerance test (OGTT) of mice in model group were significantly higher than that of normal group, which were significantly reduced after the rutin treatment. Rutin could reduce the ALT, AST activities and AGEs level in serum and potentiate the expression of IRS-2, P-PI3K (p85), P-Akt (Ser473), P-GSK-3β (Ser9) protein and IRS-2 mRNA in the liver tissue of db/db mice. Moreover, rutin could significantly alleviate the structure disorder of liver, reduce the degeneration and necrosis of liver cells and formation of collagen fibers of db/db mice. The results in vitro also showed that rutin could obviously inhibit the generation of AGEs, and promoted the proliferation activity of high glucose-stimulating HepG2 cells. In general, the protective effect of rutin on the liver of T2DM may be mediated by facilitating signal transduction and activated state of insulin IRS-2/PI3K/Akt/GSK-3β signal pathway, promoting hepatocyte proliferation, reducing blood glucose level and generation of AGEs.
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Affiliation(s)
- Weishi Liang
- Clinical Medical College, North China University of Science and Technology, Tangshan 063210, PR China; Basic Medical College, North China University of Science and Technology, Tangshan 063210, PR China
| | - Dandan Zhang
- Clinical Medical College, North China University of Science and Technology, Tangshan 063210, PR China; Basic Medical College, North China University of Science and Technology, Tangshan 063210, PR China
| | - Jiali Kang
- Clinical Medical College, North China University of Science and Technology, Tangshan 063210, PR China; Basic Medical College, North China University of Science and Technology, Tangshan 063210, PR China
| | - Xubing Meng
- Clinical Medical College, North China University of Science and Technology, Tangshan 063210, PR China; Basic Medical College, North China University of Science and Technology, Tangshan 063210, PR China
| | - Jingbo Yang
- Clinical Medical College, North China University of Science and Technology, Tangshan 063210, PR China; Basic Medical College, North China University of Science and Technology, Tangshan 063210, PR China
| | - Lei Yang
- Clinical Medical College, North China University of Science and Technology, Tangshan 063210, PR China; Basic Medical College, North China University of Science and Technology, Tangshan 063210, PR China
| | - Ning Xue
- Clinical Medical College, North China University of Science and Technology, Tangshan 063210, PR China; Basic Medical College, North China University of Science and Technology, Tangshan 063210, PR China
| | - Qingyao Gao
- Clinical Medical College, North China University of Science and Technology, Tangshan 063210, PR China; Basic Medical College, North China University of Science and Technology, Tangshan 063210, PR China
| | - Shuying Han
- Basic Medical College, North China University of Science and Technology, Tangshan 063210, PR China; Department of Pharmacology, North China University of Science and Technology, Tangshan 063210, PR China.
| | - Xiangbo Gou
- Basic Medical College, North China University of Science and Technology, Tangshan 063210, PR China; Department of Pharmacology, North China University of Science and Technology, Tangshan 063210, PR China.
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Improvement Activity of 1-Deoxynojirimycin in the Growth of Dairy Goat Primary Mammary Epithelial Cell through Upregulating LEF-1 Expression. BIOMED RESEARCH INTERNATIONAL 2018; 2018:7809512. [PMID: 29670907 PMCID: PMC5836298 DOI: 10.1155/2018/7809512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 12/29/2017] [Accepted: 01/23/2018] [Indexed: 11/18/2022]
Abstract
LEF-1/wnt10b is one of the most important signaling pathways regulating mammary gland growth and development and is also a potential target for molecular breeding. In this work, 1-deoxynojirimycin (DNJ), a natural alkaloid extracted from plant mulberry or microorganism, was found to have a positive activity in primary breast epithelial cell growth of dairy goats. The findings showed that, compared to the control, 6 μM DNJ in the DMEM/F12 medium in vitro greatly improved the density of dairy goat breast epithelial cell and significantly increased the LEF-1 mRNA level (P < 0.01) and thus enhanced cell growth. In addition, DNJ displayed a similar function in alleviating the growth suppression of epithelial cell and the decrease of LEF-1 mRNA level resulting from lentiviral-mediated LEF-1 knockdown. Simultaneously, no significant change of the mRNA levels of IGF-1 and Fgf10, the other two key regulators in mammary gland growth and development, could be detected. Furthermore, the mammary duct of DNJ-fed mouse illustrated a better development accompanied with a higher LET-1 mRNA level than that of the control. In conclusion, DNJ could improve breast epithelial cell growth through upregulating LEF-1 expression, which supplied a new means in studying mammary gland growth and development.
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Piao X, Li S, Sui X, Guo L, Liu X, Li H, Gao L, Cai S, Li Y, Wang T, Liu B. 1-Deoxynojirimycin (DNJ) Ameliorates Indomethacin-Induced Gastric Ulcer in Mice by Affecting NF-kappaB Signaling Pathway. Front Pharmacol 2018; 9:372. [PMID: 29725297 PMCID: PMC5917448 DOI: 10.3389/fphar.2018.00372] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 04/03/2018] [Indexed: 12/27/2022] Open
Abstract
Gastric ulcer (GU) is a main threat to public health. 1-Deoxynojirimycin (DNJ) has antioxidant and anti-inflammatory properties and may prevent GU but related mechanism remains unclear. DNJ was extracted from the supernatants of Bacillus subtilis by using ethanol and purified by using CM-Sepharose chromatography. A GU mouse model was induced by indomethacin. The functional role of DNJ in GU mice was explored by measuring the main molecules in the NF-KappaB pathway. After the model establishment, 40 GU mice were evenly assigned into five categories: IG (received vehicle control), LG (10 μg DNJ daily), MG (20 μg DNJ daily), HG (40 μg DNJ daily), and RG (0.5 mg ranitidine daily). Meanwhile, eight healthy mice were assigned as a control group (CG). After 1-month therapy, weight and gastric volume were investigated. The levels of serum inflammatory cytokines (IL-6 and TNF-α), antioxidant indices [superoxide dismutase (SOD), catalase (CAT), and reduced glutathione (GSH)], and oxidant biomarker malondialdehyde (MDA) were examined via ELISA. Meanwhile, inflammatory cytokine (IL-6 and TNF-α) levels, and key molecules (NF-κB p65), cyclooxygenase 1 (COX-1 and COX2) involved in NF-κB pathway, were analyzed by using Western Blot. COX-1 and COX-2 levels were further measured by immunohistochemistry. The effects of DNJ on gastric functions were explored by measuring the changes of Motilin (MOT), Substance P (SP), Somatostatin (SS), and Vasoactive intestinal peptide (VIP) in GU mouse models with ELISA Kits. The results indicated that DNJ prevented indomethacin-caused increase of gastric volume. DNJ improved histopathology of GU mice when compared with the mice from IG group (P < 0.05). DNJ consumption decreased the levels of IL-6 and TNF-α (P < 0.05). DNJ increased antioxidant indices of GU mice by improving the activities of SOD, CAT and reduced GSH, and reduced MDA levels (P < 0.05). DNJ increased the levels of prostaglandin E2, COX-1, COX2, and reduced the levels of and NF-κB p65 (P < 0.05). DNJ showed protection for gastric functions of GU mice by reducing the levels of MOT and SP, and increasing the levels of SS and VIP. DNJ treatment inactivates NF-κB signaling pathway, and increases anti-ulceration ability of the models.
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Affiliation(s)
- Xuehua Piao
- Department of Traditional Chinese Medicine, The First Affiliated Hospital, Jinzhou Medical University, Jinzhou, China
| | - Shuangdi Li
- Heart Disease Center, The Affiliated Hospital of Changchun University of Traditional Chinese Medicine, Changchun, China
| | - Xiaodan Sui
- Department of Hepatology, The Affiliated Hospital of Changchun University of Traditional Chinese Medicine, Changchun, China
| | - Lianyi Guo
- Department of Gastroenterology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Xingmei Liu
- Department of Gastroenterology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Hongmei Li
- Department of Gastroenterology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Leming Gao
- School of Stomatology, 2nd Dental Center, Peking University, Beijing, China
| | - Shusheng Cai
- Department of Gastroenterology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Yanrong Li
- Department of Gastroenterology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Tingting Wang
- Department of Gastroenterology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Baohai Liu
- Department of Gastroenterology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
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Antidiabetic Effects of a Chinese Herbal Medicinal Compound Sangguayin Preparation via PI3K/Akt Signaling Pathway in db/db Mice. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:2010423. [PMID: 29686718 PMCID: PMC5857309 DOI: 10.1155/2018/2010423] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 01/19/2018] [Accepted: 01/30/2018] [Indexed: 12/11/2022]
Abstract
Sangguayin (SGY), comprising four types of Chinese herbs, can be used as both food and medicine and has been clinically used to treat type 2 diabetes mellitus (T2DM) for a long time. Our previous study demonstrated the antidiabetic effect of SGY in experimental T2DM rats fed with a high-fat diet and treated with a low dose of streptozotocin. However, its mechanism of action is questionable. In this study, we refined the traditional SGY decoction and investigated its antidiabetic activity in db/db mice. We evaluated the possible molecular mechanism using skeletal muscle tissues. The results show that the treatment with SGY preparation resulted in a decrease in the blood glucose, glycated serum protein, and blood lipid levels and an improvement in the glucose tolerance as well as insulin resistance. In addition, SGY preparation remarkably upregulated the expression of insulin receptor, insulin receptor substrate-1, phosphoinositide 3 kinase (PI3K), protein kinase B (Akt), and glucose transporter type 4 (GLUT4). Thus, SGY preparation is an effective agent for the treatment of T2DM, and its molecular mechanism may be related to the regulation of PI3K/Akt signaling in the skeletal muscle.
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Liang Y, Wang Y, Qiao Z, Cao T, Feng Y, Zhang L, Zhang P. Duodenal-Jejunal Bypass Surgery Reverses Diabetic Phenotype and Reduces Obesity in db/db Mice. Curr Chem Genom Transl Med 2017; 11:41-49. [PMID: 29238655 PMCID: PMC5712635 DOI: 10.2174/2213988501711010041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 09/08/2017] [Accepted: 10/18/2017] [Indexed: 11/22/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM), a complex metabolic disorder typically accompanying weight gain, is associated with progressive β-cell failure and insulin resistance. Bariatric surgery ameliorates glucose tolerance and provides a near-perfect treatment. Duodenal-jejunal bypass (DJB) is an experimental procedure and has been studied in several rat models, but its influence in db/db mice, a transgenic model of T2DM, remains unclear. To investigate the effectiveness of DJB in db/db mice, we performed the surgery and evaluated metabolism improvement. Results showed that mice in DJB group weighed remarkably less than sham group two weeks after surgery. Compared to the preoperative level, postoperative fasting blood glucose (FBG) was dramatically reduced. Statistical analysis revealed that changes in body weight and FBG were significantly correlated. Besides, DJB surgery altered plasma insulin level with approximate 40% reduction. Thus, for the first time we proved that DJB can achieve rapid therapeutic effect in transgenic db/db mice with severe T2DM as well as obesity. In addition, decreased insulin level reflected better insulin sensitivity induced by DJB. In conclusion, our study demonstrates that DJB surgery may be a potentially effective way to treat obesity-associated T2DM.
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Affiliation(s)
- Yongjun Liang
- Center for Medical Research and Innovation, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, 2800 Gongwei Road, Pudong, , P.R. China
| | - Yueqian Wang
- Center for Medical Research and Innovation, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, 2800 Gongwei Road, Pudong, , P.R. China
| | - Zhengdong Qiao
- Center for Medical Research and Innovation, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, 2800 Gongwei Road, Pudong, , P.R. China
| | - Ting Cao
- Center for Medical Research and Innovation, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, 2800 Gongwei Road, Pudong, , P.R. China
| | - Ying Feng
- Laboratory of Molecular Neuropharmacology, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, , P.R. China
| | - Lin Zhang
- Laboratory of Molecular Neuropharmacology, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, , P.R. China
| | - Peng Zhang
- Center for Medical Research and Innovation, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, 2800 Gongwei Road, Pudong, , P.R. China
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38
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New Insights into the Mechanisms of Chinese Herbal Products on Diabetes: A Focus on the "Bacteria-Mucosal Immunity-Inflammation-Diabetes" Axis. J Immunol Res 2017; 2017:1813086. [PMID: 29164155 PMCID: PMC5661076 DOI: 10.1155/2017/1813086] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 06/27/2017] [Accepted: 07/25/2017] [Indexed: 12/25/2022] Open
Abstract
Diabetes, especially type 2, has been rapidly increasing all over the world. Although many drugs have been developed and used to treat diabetes, side effects and long-term efficacy are of great challenge. Therefore, natural health product and dietary supplements have been of increasing interest alternatively. In this regard, Chinese herbs and herbal products have been considered a rich resource of product development. Although increasing evidence has been produced from various scientific studies, the mechanisms of action are lacking. Here, we have proposed that many herbal monomers and formulae improve glucose homeostasis and diabetes through the BMID axis; B represents gut microbiota, M means mucosal immunity, I represents inflammation, and D represents diabetes. Chinese herbs have been traditionally used to treat diabetes, with minimal side and toxic effects. Here, we reviewed monomers such as berberine, ginsenoside, M. charantia extract, and curcumin and herbal formulae such as Gegen Qinlian Decoction, Danggui Liuhuang Decoction, and Huanglian Wendan Decoction. This review was intended to provide new perspectives and strategies for future diabetes research and product.
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Hu XQ, Thakur K, Chen GH, Hu F, Zhang JG, Zhang HB, Wei ZJ. Metabolic Effect of 1-Deoxynojirimycin from Mulberry Leaves on db/db Diabetic Mice Using Liquid Chromatography-Mass Spectrometry Based Metabolomics. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:4658-4667. [PMID: 28541040 DOI: 10.1021/acs.jafc.7b01766] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Metabolomics was applied to the liquid chromatography-mass spectrometry urinary metabolic profile of type 2 diabetes (T2DM) mice treated with mulberry 1-deoxynojirimycin (DNJ). The serum biochemical indicators related to T2DM like blood glucose, insulin, triglyceride, total cholesterol, nitrogen, malondialdehyde, and creatinine decreased significantly in the treated group. The histopathological changes in liver cells were marked by deformations and disruptions in central area of nuclei in DM mice, whereas DNJ treatment recovered regular liver cells with normal nuclei. Most of the metabolites of T2DM were significantly different from healthy controls in the bulk data generated. The level of 16 metabolites showed that the diabetic group was closer to the healthy group as the DNJ treatment time prolonged. Moreover, DNJ inhibited the activity of glucosidase on glucose, lipid, and amino acid metabolism. Our results showed the mechanism of DNJ treatment of T2DM and could fetch deep insights into the potent metabolite markers of the applied antidiabetic interventions.
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Affiliation(s)
| | | | - Gui-Hai Chen
- Department of Neurology, The Affiliated Chaohu Hospital of Anhui Medical University, Chaohu , Hefei 238000, People's Republic of China
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40
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Chen Y, Liu M, Chen S, Wei X. Decreased formation of branched-chain short fatty acids in Bacillus amyloliquefaciens by metabolic engineering. Biotechnol Lett 2017; 39:529-533. [PMID: 27999972 DOI: 10.1007/s10529-016-2270-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 12/08/2016] [Indexed: 11/24/2022]
Abstract
OBJECTIVES To reduce the unpleasant odor during 1-deoxynojirimycin (DNJ) production, the genes of leucine dehydrogenase (bcd) and phosphate butryltransferase (ptb) were deleted from Bacillus amyloliquefaciens HZ-12, and the concentrations of branched-chain short fatty acids (BCFAs) and DNJ were compared. RESULTS By knockout of the ptb gene, 1.01 g BCFAs kg-1 was produced from fermented soybean by HZ-12Δptb. This was a 56% decrease compared with that of HZ-12 (2.27 g BCFAs kg-1). Moreover, no significant difference was found in the DNJ concentration (0.7 g kg-1). After further deletion of the bcd gene from HZ-12Δptb, no BCFAs was detected in fermented soybeans with HZ-12ΔptbΔbcd, while the DNJ yield decreased by 26% compared with HZ-12. CONCLUSIONS HZ-12Δptb had decreased BCFAs formation but also maintained the stable DNJ yield, which contributed to producing DNJ-rich products with decreased unpleasant smell.
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Affiliation(s)
- Yangyang Chen
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Mengjie Liu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Shouwen Chen
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xuetuan Wei
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China.
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
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Liu W, Liu J, Xia J, Xue X, Wang H, Qi Z, Ji L. Leptin receptor knockout-induced depression-like behaviors and attenuated antidepressant effects of exercise are associated with STAT3/SOCS3 signaling. Brain Behav Immun 2017; 61:297-305. [PMID: 28069387 DOI: 10.1016/j.bbi.2017.01.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 12/24/2016] [Accepted: 01/05/2017] [Indexed: 01/16/2023] Open
Abstract
Relatively little has been known about pathophysiological mechanisms contributing to the development of neuropsychiatric symptoms in the context of metabolic syndrome. Impaired leptin signaling activation in db/db mice has been proposed as a potential link between behavioral and metabolic disorders. Our previous studies have shown that exercise has the beneficial effects on a depression-like and insulin-resistant state in mice. The present study aimed to determine whether and how leptin receptor knockout (db/db) induces depression-like behaviors, and to identify the antidepressant effects of swimming exercise in db/db mice. Our results support the validity of db/db mice as an animal model to study depression with metabolic abnormalities, but fail to confirm the improvement of exercise on depression. LepRb knockout-induced depression-like behaviors are associated with STAT3/SOCS3 signaling but independent of IKKβ/NFκB signaling. Our findings suggest the potential importance of LepRb as an exercise-regulated target for depression, also representing a new target underlying treatment-resistant depression.
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Affiliation(s)
- Weina Liu
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention of Ministry of Education, East China Normal University, Shanghai 200241, China; School of Physical Education & Health Care, East China Normal University, Shanghai 200241, China
| | - Jiatong Liu
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention of Ministry of Education, East China Normal University, Shanghai 200241, China; School of Physical Education & Health Care, East China Normal University, Shanghai 200241, China
| | - Jie Xia
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention of Ministry of Education, East China Normal University, Shanghai 200241, China; School of Physical Education & Health Care, East China Normal University, Shanghai 200241, China
| | - Xiangli Xue
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention of Ministry of Education, East China Normal University, Shanghai 200241, China; School of Physical Education & Health Care, East China Normal University, Shanghai 200241, China
| | - Hongmei Wang
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention of Ministry of Education, East China Normal University, Shanghai 200241, China; School of Physical Education & Health Care, East China Normal University, Shanghai 200241, China
| | - Zhengtang Qi
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention of Ministry of Education, East China Normal University, Shanghai 200241, China; School of Physical Education & Health Care, East China Normal University, Shanghai 200241, China.
| | - Liu Ji
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention of Ministry of Education, East China Normal University, Shanghai 200241, China; School of Physical Education & Health Care, East China Normal University, Shanghai 200241, China.
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Nutraceuticals: A paradigm of proactive medicine. Eur J Pharm Sci 2016; 96:53-61. [PMID: 27613382 DOI: 10.1016/j.ejps.2016.09.003] [Citation(s) in RCA: 162] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 08/31/2016] [Accepted: 09/04/2016] [Indexed: 12/19/2022]
Abstract
Nutraceuticals define a new category which shades the frontier between drugs and food. As per its definition, a nutraceutical is "a food or part of a food that provides benefits health in addition to its nutritional content". Active substances either way extracted from plants (phytocomplexes) or of animal origin, when extracted, concentrated and administered in a suitable pharmaceutical form, can create a very promising toolbox useful to prevent and/or support the therapy of some pathologic conditions given their proven clinical efficacy. It is worldwide recognized that diet and lifestyle are essential to promote and maintain well-being and nice-being condition, other than help to prevent diseases possible onset. Both non-correct dietary habits and lifestyle can in fact determine pathological conditions. The metabolic syndrome, a worldwide epidemic threat, can be named an outstanding example. This syndrome is characterized by a cascade of cardio metabolic risk factors which include obesity, insulin resistance, hypertension, and dyslipidemia. Prevention is the key strategy for an effective proactive medicine, in which efforts are addressed to prevention and, consequently, to lower the risk connected to some lifestyle related diseases reducing, at the same time, any National Health Systems cost needed to guarantee the proper therapeutic approach based on pharmaceuticals. Nutraceuticals use in prevention is a proactive reverse approach tool to pre-clinical health conditions. They can be effectively used, by including in the daily diet, in an area which shades in the range "beyond the diet, before drugs", since they combine both nutritional and beneficial healthy properties of food extracts with the healing properties of natural active compounds.
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