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Han Y, Zhang Z, Song Q, Sun S, Li W, Yang F, Tong L. Modulation of glycolipid metabolism in T2DM rats by Rubus irritans Focke extract: Insights from metabolic profiling and ERK/IRS-1 signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2024; 332:118341. [PMID: 38754646 DOI: 10.1016/j.jep.2024.118341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 04/26/2024] [Accepted: 05/12/2024] [Indexed: 05/18/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The extracellular regulated protein kinase (ERK) plays a crucial role in the mitogen-activated protein kinase (MAPK) family, influencing apoptosis, proliferation, and differentiation. It connection to the insulin (INS) signaling cascade and the development of type 2 diabetes mellitus (T2DM) has been established. Rubus irritans Focke, an indispensable herb in Chinese Tibetan medicine for diabetes mellitus treatment, lacks a comprehensive understanding of its effects and pharmacological mechanisms in T2DM. AIM OF THE STUDY This study aimed to elucidate the effects of Rubus irritans Focke extract (Rife) on a T2DM rat model, exploring its impact on glycemic and lipid metabolism, histopathological changes, and its potential targeting of the extracellular regulated protein kinase/insulin receptor substrate-1 (ERK/IRS-1) signaling pathway. MATERIALS AND METHODS A T2DM rat model was induced by streptozotocin (STZ) injection (40 mg/kg) in high-fat diet-fed (HFD) male Wistar rats. Rife and metformin (Met) were administered for 4 weeks, and glycemic, lipid metabolism indices, and histopathological changes were assessed. Protein expression of ERK, IRS-1 in rat liver tissues was examined to evaluate the impact on the ERK/IRS-1 pathway. RESULTS Rife reducing hepatic ERK and IRS-1 protein expression in T2DM rats. Untargeted metabolomics identified 13 potential biomarkers and 4 differential metabolic pathways related to glycolipid metabolism disorders. CONCLUSIONS Rife demonstrated improved glycolipid metabolism in T2DM rats by inhibiting the ERK/IRS-1 related signaling pathway and influencing multiple metabolic pathways. This study provides valuable insights into the potential therapeutic mechanisms of Rife in the context of T2DM.
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Affiliation(s)
- Yongxia Han
- Department of Pharmacy, Qinghai University, Xining, Qinghai, 810001, China
| | - Zonghao Zhang
- College of Animal Husbandry and Veterinary Science, Qinghai University, 810001, China
| | - Qingyun Song
- Department of Pharmacy, Qinghai University, Xining, Qinghai, 810001, China; Qinghai Key Laboratory of Traditional Chinese Medicine for Prevention and Control of Glycolipid Metabolic Diseases, Xining, Qinghai, 810001, China
| | - Shengnan Sun
- Department of Pharmacy, Qinghai University, Xining, Qinghai, 810001, China; Qinghai Key Laboratory of Traditional Chinese Medicine for Prevention and Control of Glycolipid Metabolic Diseases, Xining, Qinghai, 810001, China
| | - Wenyuan Li
- Department of Pharmacy, Qinghai University, Xining, Qinghai, 810001, China; Qinghai Key Laboratory of Traditional Chinese Medicine for Prevention and Control of Glycolipid Metabolic Diseases, Xining, Qinghai, 810001, China
| | - Fang Yang
- Department of Pharmacy, Qinghai University, Xining, Qinghai, 810001, China; Qinghai Key Laboratory of Traditional Chinese Medicine for Prevention and Control of Glycolipid Metabolic Diseases, Xining, Qinghai, 810001, China.
| | - Li Tong
- Department of Pharmacy, Qinghai University, Xining, Qinghai, 810001, China; Qinghai Key Laboratory of Traditional Chinese Medicine for Prevention and Control of Glycolipid Metabolic Diseases, Xining, Qinghai, 810001, China.
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Shen Y, Fang L, Liu C, Wang J, Wu D, Zeng Q, Leng Y, Min W. Effect of bi-enzyme hydrolysis on the properties and composition of hydrolysates of Manchurian walnut dreg protein. Food Chem 2024; 447:138947. [PMID: 38492294 DOI: 10.1016/j.foodchem.2024.138947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 02/08/2024] [Accepted: 02/24/2024] [Indexed: 03/18/2024]
Abstract
Walnut dreg (WD) active peptides are an important source of dietary antioxidants; however, the products of conventional hydrolysis have limited industrial output owing to poor flavour and low bioactivity. To this end, in this study, we aimed to employ bvLAP, an aminopeptidase previously identified in our research, as well as commercially available Alcalase for bi-enzyme digestion. The flavour, antioxidant activity, and structures of products resulting from various digestion methods were compared. The results showed that the bi-enzyme digestion products had enhanced antioxidant activity, increased β-sheet content, and reduced bitterness intensity from 9.65 to 6.93. Moreover, bi-enzyme hydrolysates showed a more diverse amino acid composition containing 1640 peptides with distinct sequences. These results demonstrate that bi-enzyme hydrolysis could be a potential process for converting WD into functional food ingredients. Additionally, our results provide new concepts that can be applied in waste processing and high-value utilisation of WD.
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Affiliation(s)
- Yue Shen
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun 130118, PR China
| | - Li Fang
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun 130118, PR China
| | - Chunlei Liu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun 130118, PR China
| | - Ji Wang
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun 130118, PR China
| | - Dan Wu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun 130118, PR China
| | - Qi Zeng
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun 130118, PR China
| | - Yue Leng
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun 130118, PR China.
| | - Weihong Min
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun 130118, PR China.
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Zhao F, Hou W, Guo L, Wang C, Liu Y, Liu X, Min W. Novel strategy to the characterization and enhance the glycemic control properties of walnut-derived peptides via zinc chelation. Food Chem 2024; 441:138288. [PMID: 38185052 DOI: 10.1016/j.foodchem.2023.138288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/28/2023] [Accepted: 12/25/2023] [Indexed: 01/09/2024]
Abstract
This study aimed to utilize zinc coordination to promote the hypoglycemic and antioxidant properties of walnut-derived peptides, such as walnut protein hydrolysate (WPH) and Leu-Pro-Leu-Leu-Arg (LPLLR, LP5), of which LP5 was previously identified from WPH. The optimal conditions for the chelation were a peptide-to-zinc ratio of 6:1, pH of 9, duration of 50 min, and temperature of 50 °C. The WPH-Zn and LP5-Zn complexes increased the α-glucosidase inhibition, α-amylase inhibition, and antioxidant activity more than WPH and LP5 (p < 0.05). In particular, the antioxidant activity of WPH-Zn was superior to LP5-Zn. This is attributable to the WPH containing more aromatic amino acids, carboxylate groups and the imidazole groups, which implies its capacity to potentially coordinate with Zn2+ to form the WPH-Zn complex. Moreover, particle size, zeta potential, and scanning electron microscope indicated that the chelation of Zn2+ by peptides led to intramolecular and intermolecular folding and aggregation.
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Affiliation(s)
- Fanrui Zhao
- College of Food and Health, Zhejiang A & F University, Hangzhou 311300, PR China; National Food Industry (High Quality Rice Storage in Medium-Temperature and High-Humidity Areas) Technology Innovation Center, Hangzhou 311300, PR China; State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou 311300, PR China; School of Advanced Studies, University of Camerino, Camerino 62032, Italy
| | - Weiyu Hou
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China
| | - Linxin Guo
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China
| | - Chongchong Wang
- College of Food and Health, Zhejiang A & F University, Hangzhou 311300, PR China; National Food Industry (High Quality Rice Storage in Medium-Temperature and High-Humidity Areas) Technology Innovation Center, Hangzhou 311300, PR China; State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou 311300, PR China
| | - Yan Liu
- College of Food and Health, Zhejiang A & F University, Hangzhou 311300, PR China; National Food Industry (High Quality Rice Storage in Medium-Temperature and High-Humidity Areas) Technology Innovation Center, Hangzhou 311300, PR China; State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou 311300, PR China
| | - Xingquan Liu
- College of Food and Health, Zhejiang A & F University, Hangzhou 311300, PR China; National Food Industry (High Quality Rice Storage in Medium-Temperature and High-Humidity Areas) Technology Innovation Center, Hangzhou 311300, PR China
| | - Weihong Min
- College of Food and Health, Zhejiang A & F University, Hangzhou 311300, PR China; National Food Industry (High Quality Rice Storage in Medium-Temperature and High-Humidity Areas) Technology Innovation Center, Hangzhou 311300, PR China; State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou 311300, PR China.
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4
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Ma C, Wu X. Cyperus peptide SFRWQ inhibits oxidation and inflammation in RAW264.7 cell model. Int J Biol Macromol 2024; 267:131272. [PMID: 38565370 DOI: 10.1016/j.ijbiomac.2024.131272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 03/19/2024] [Accepted: 03/28/2024] [Indexed: 04/04/2024]
Abstract
Oxidative stress can induce many diseases. Antioxidant peptides from food sources have the advantages of good safety, high activity, and good absorbability. In this study, a pentapeptide (SFRWQ; SER-PHE-ARG-TRP-GLN) was identified in a protein hydrolysate of Cyperus (Cyperus esculentus L.). Enzyme-linked immunosorbent assay (ELISA), real-time quantitative (qPCR), immunofluorescence and other techniques were used to evaluate the anti-inflammatory and antioxidant effects of SFRWQ. SFRWQ was found to have 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical-scavenging ability, help increase superoxide dismutase (SOD) and catalase (CAT) levels in RAW264.7 cells, reduce reactive oxygen species (ROS) levels, and decrease tumor necrosis factor alpha (TNF-α) and interleukin-6 (IL-6) gene expression and secretion. The binding score of SFRWQ to recombinant Kelch-like ECH-associated protein 1 (Keap1) was greater than that of TX6. These findings suggest that SFRWQ activates the Keap1-Nrf2 cellular antioxidant signaling pathway. According to metabolomics studies, SFRWQ increased glutathione (GSH), glutathione disulfide (GSSG), and γ-glutamylcysteine levels and decreased the levels of Prostaglandin D2 (PGD2), Prostaglandin E2 (PGE2), and Prostaglandin H2 (PGH2), which are involved in arachidonic acid metabolism, to protect cells from LPS-induced damage. By elucidating the mechanism of action of SFRWQ, we provide a reference for the development of dietary antioxidant peptides.
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Affiliation(s)
- Chaoyue Ma
- School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia 010000, PR China
| | - Xiaotong Wu
- School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia 010000, PR China.
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Ding L, Zheng X, Zhao L, Cai S. Identification of Novel Peptides in Distillers' Grains as Antioxidants, α-Glucosidase Inhibitors, and Insulin Sensitizers: In Silico and In Vitro Evaluation. Nutrients 2024; 16:1279. [PMID: 38732526 PMCID: PMC11085682 DOI: 10.3390/nu16091279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 04/22/2024] [Accepted: 04/23/2024] [Indexed: 05/13/2024] Open
Abstract
Distillers' grains are rich in protein and constitute a high-quality source of various bioactive peptides. The purpose of this study is to identify novel bioactive peptides with α-glucosidase inhibitory, antioxidant, and insulin resistance-ameliorating effects from distiller's grains protein hydrolysate. Three novel peptides (YPLPR, AFEPLR, and NDPF) showed good potential bioactivities, and the YPLPR peptide had the strongest bioactivities, whose IC50 values towards α-glucosidase inhibition, radical scavenging rates of 2,2'-azino-bis (3-ethylbenzothiazoline-6- sulfonic acid) (ABTS) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) were about 5.31 mmol/L, 6.05 mmol/L, and 7.94 mmol/L, respectively. The glucose consumption of HepG2 cells treated with YPLPR increased significantly under insulin resistance condition. Moreover, the YPLPR peptide also had a good scavenging effect on intracellular reactive oxygen species (ROS) induced by H2O2 (the relative contents: 102.35% vs. 100%). Molecular docking results showed that these peptides could stably combine with α-glucosidase, ABTS, and DPPH free radicals, as well as related targets of the insulin signaling pathway through hydrogen bonding and van der Waals forces. This research presents a potentially valuable natural resource for reducing oxidative stress damage and regulating blood glucose in diabetes, thereby increasing the usage of distillers' grains peptides and boosting their economic worth.
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Affiliation(s)
- Lixin Ding
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; (L.D.); (X.Z.)
- Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China
- International Green Food Processing Research and Development Center of Kunming City, Kunming 650500, China
| | - Xiuqing Zheng
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; (L.D.); (X.Z.)
- Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China
- International Green Food Processing Research and Development Center of Kunming City, Kunming 650500, China
| | - Lei Zhao
- Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University, Beijing 100048, China;
| | - Shengbao Cai
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; (L.D.); (X.Z.)
- Yunnan Engineering Research Center for Fruit & Vegetable Products, Kunming 650500, China
- International Green Food Processing Research and Development Center of Kunming City, Kunming 650500, China
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6
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Zhou F, Li D, Hou Y, Cong Z, Li K, Gu X, Xiao G. Exploration of hypoglycemic peptides from porcine collagen based on network pharmacology and molecular docking. PLoS One 2024; 19:e0298674. [PMID: 38470866 DOI: 10.1371/journal.pone.0298674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 01/26/2024] [Indexed: 03/14/2024] Open
Abstract
In recent years, the extraction of hypoglycemic peptides from food proteins has gained increasing attention. Neuropeptides, hormone peptides, antimicrobial peptides, immune peptides, antioxidant peptides, hypoglycemic peptides and antihypertensive peptides have become research hotspots. In this study, bioinformatic methods were used to screen and predict the properties of pig collagen-derived hypoglycemic peptides, and their inhibitory effects on α-glucosidase were determined in vitro. Two peptides (RL and NWYR) were found to exhibit good water solubility, adequate ADMET (absorption, distribution, metabolism, elimination, and toxicity) properties, potentially high biological activity, and non-toxic. After synthesizing these peptides, NWYR showed the best inhibitory effect on α-glucosidase with IC50 = 0.200±0.040 mg/mL, and it can regulate a variety of biological processes, play a variety of molecular functions in different cellular components, and play a hypoglycemic role by participating in diabetic cardiomyopathy and IL-17 signaling pathway. Molecular docking results showed that NWYR had the best binding effect with the core target DPP4 (4n8d), with binding energy of -8.8 kcal/mol. NWYR mainly bonded with the target protein through hydrogen bonding, and bound with various amino acid residues such as Asp-729, Gln-731, Leu-765, etc., thus affecting the role of the target in each pathway. It is the best core target for adjuvant treatment of T2DM. In short, NWYR has the potential to reduce type 2 diabetes, providing a basis for further research or food applications as well as improved utilization of pig by-products. However, in subsequent studies, it is necessary to further verify the hypoglycemic ability of porcine collagen active peptide (NWYR), and explore the hypoglycemic mechanism of NWYR from multiple perspectives such as key target genes, protein expression levels and differences in metabolites in animal models of hyperglycemia, which will provide further theoretical support for its improvement in the treatment of T2DM.
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Affiliation(s)
- Fating Zhou
- College of Biology and Food Engineering, Chongqing Three Gorges University, Chongqing, China
| | - Di Li
- College of Biology and Food Engineering, Chongqing Three Gorges University, Chongqing, China
| | - Yakun Hou
- College of Food Science and Technology, Hebei Agricultural University, Baoding, China
| | - Zhihui Cong
- College of Biology and Food Engineering, Chongqing Three Gorges University, Chongqing, China
| | - Kaifeng Li
- College of Biology and Food Engineering, Chongqing Three Gorges University, Chongqing, China
| | - Xin Gu
- College of Biology and Food Engineering, Chongqing Three Gorges University, Chongqing, China
| | - Guosheng Xiao
- College of Biology and Food Engineering, Chongqing Three Gorges University, Chongqing, China
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Shan C, Miao F, Guo G. Ameliorative Effect of Macadamia Nut Protein Peptides on Acetaminophen-Induced Acute Liver Injury in Mice. J Med Food 2024; 27:257-266. [PMID: 38386536 DOI: 10.1089/jmf.2023.k.0192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2024] Open
Abstract
This study aims to examine the ameliorative effect of macadamia nut protein peptides (MPP) on acetaminophen (APAP)-induced liver injury (AILI) in mice, and develop a new strategy for identifying hepatoprotective functional foods. The molecular weight distribution and amino acid composition of MPP were first studied. Forty mice were then randomized into four groups: control group (CON), APAP model group, APAP+MPP low-dose group (APAP+L-MPP), and APAP+MPP high-dose group (APAP+H-MPP). The APAP+L-MPP (320 mg/kg per day) and APAP+H-MPP (640 mg/kg per day) groups received continuous MPP gavage for 2 weeks. A 12 h of APAP (200 mg/kg) gavage resulted in liver damage. Pathological alterations, antioxidant index levels, expression of toll-like receptor 4 (TLR4)/nuclear factor-κB (NF-κB), and associated inflammatory factors were determined for each treatment group. The results revealed that the total amino acid content of MPP was 39.58 g/100 g, with Glu, Arg, Asp, Leu, Tyr, and Gly being the major amino acids. The molecular weight range of 0-1000 Da accounted for 73.54%, and 0-500 Da accounted for 62.84% of MPP. MPP ameliorated the pathological morphology and reduced the serum levels of alanine aminotransferase, aspartate aminotransferase, and alkaline phosphatase of AILI in mice. MPP significantly increased the activities of superoxide dismutase and glutathione peroxidase in the liver compared with the APAP group. MPP inhibited the expression of TLR4, NF-κB, interleukin-1β (IL-1β), and tumor necrosis factor-α (TNF-α) genes in AILI mice. MPP also inhibited the expression levels of inflammatory factors (TNF-α and IL-6). Our study concludes that MPP alleviates AILI in mice by enhancing antioxidant capacity and inhibiting TLR4/NF-κB pathway-related gene activation.
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Affiliation(s)
- Chunlan Shan
- Department of Animal Medicine, College of Animal Science, Guizhou University, Guiyang, China
| | - Fujun Miao
- Economic Forest Research Institute, Yunnan Academy of Forestry and Grassland, Kunming, China
| | - Gangjun Guo
- Tropical Agricultural Products Development and Utilization Research Center, Yunnan Institute of Tropical Crops, Jinghong, China
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Li Y, Dang Q, Shen Y, Guo L, Liu C, Wu D, Fang L, Leng Y, Min W. Therapeutic effects of a walnut-derived peptide on NLRP3 inflammasome activation, synaptic plasticity, and cognitive dysfunction in T2DM mice. Food Funct 2024; 15:2295-2313. [PMID: 38323487 DOI: 10.1039/d3fo05076a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
NLRP3 inflammasome activation plays a key role in the development of diabetes-induced cognitive impairment. However, strategies to inhibit NLRP3 inflammasome activation remain elusive. Herein, we evaluated the impact of a walnut-derived peptide, TWLPLPR (TW-7), on cognitive impairment in high-fat diet/streptozotocin-induced type 2 diabetes mellitus (T2DM) mice and explored its underlying mechanisms in high glucose-induced HT-22 cells. In the Morris water maze test, TW-7 alleviated cognitive deficits in mice; this was confirmed at the level of synaptic structure and dendritic spine density in the mouse hippocampus using transmission electron microscopy and Golgi staining. TW-7 increased the expression of synaptic plasticity-related proteins and suppressed the NEK7/NLRP3 inflammatory pathway, as determined by western blotting and immunofluorescence analysis. The mechanism of action of TW-7 was verified in an HT-22 cell model of high glucose-induced insulin resistance. Collectively, TW-7 could regulate T2DM neuroinflammation and synaptic function-induced cognitive impairment by inhibiting NLRP3 inflammasome activation and improving synaptic plasticity.
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Affiliation(s)
- Yanru Li
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, P. R. China.
| | - Qiao Dang
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, P. R. China.
| | - Yue Shen
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, P. R. China.
| | - Linxin Guo
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, P. R. China.
| | - Chunlei Liu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, P. R. China.
| | - Dan Wu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, P. R. China.
| | - Li Fang
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, P. R. China.
| | - Yue Leng
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, P. R. China.
| | - Weihong Min
- College of Food and Health, Zhejiang A & F University, Hangzhou 311300, P.R. China.
- National Grain Industry (High-Quality Rice Storage in Temperate and Humid Region) Technology Innovation Center, Hangzhou 311300, China
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Li D, Fan J, Du L, Ren G. Prenylated flavonoid fractions from Glycyrrhiza glabra alleviate insulin resistance in HepG2 cells by regulating the ERK/IRS-1 and PI3K/Akt signaling pathways. Arch Pharm Res 2024; 47:127-145. [PMID: 38267702 DOI: 10.1007/s12272-024-01485-2] [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: 07/26/2023] [Accepted: 01/11/2024] [Indexed: 01/26/2024]
Abstract
Insulin resistance (IR) is a key factor in the pathogenesis of disrupted glucose metabolism. Although the extract of Glycyrrhiza glabra has shown significant hypoglycemic activity, its bioactive components remain to be identified, and their mechanisms of action, especially on hepatocyte glucose metabolism, are yet to be explored. In the present study, the primary compounds from Glycyrrhiza glabra [named prenylated flavonoid fractions (PFFs)] have been identified and their chemical structures have been elucidated. The therapeutic effects of PFFs extracted from G. glabra on glucose metabolism disorders and IR in high insulin-induced insulin-resistant HepG2 (IR-HepG2) cells have been determined. Glabridin (GLD) was used as a control. The results indicated that, similar to GLD, PFFs increased glucose consumption, glucose uptake, and translocation of glucose transporter 4 to the plasma membrane in IR-HepG2 cells. In addition, they enhanced the activities of glycogen synthase, glucokinase, and pyruvate kinase, while reducing the activities of phosphoenolpyruvate carboxykinase and glucose-6-phosphatase. Furthermore, they activated the phosphatidylinositol 3-kinase/protein kinase B (PI3K/Akt) pathway and suppressed the extracellular signal-regulated kinase/insulin receptor substrate-1 (ERK/IRS-1) pathway. These findings suggest that, similar to GLD, PFFs can alleviate impaired glucose metabolism and alleviate IR in IR-HepG2 cells.Please check and confirm that the authors and their respective affiliations have been correctly identified and amend if necessary.The authors and their affiliations have been confirmed as correct.
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Affiliation(s)
- Defeng Li
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, 471023, China
| | - Jinling Fan
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, 471023, China.
| | - Lin Du
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, 471023, China
| | - Guoyan Ren
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, 471023, China
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Cao M, Wang J, Jiang X, Sun Z, Zhao L, Chen G. Phenolic Constituents from Black Quinoa Alleviate Insulin Resistance in HepG2 Cells via Regulating IRS1/PI3K/Akt/GLUTs Signaling Pathways. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:18780-18791. [PMID: 37991345 DOI: 10.1021/acs.jafc.3c05900] [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] [Indexed: 11/23/2023]
Abstract
Quinoa is a nutrient-rich pseudocereal with a lower glycemic index and glycemic load. However, its therapeutic potency and underlying mechanism against insulin resistance (IR) have not been fully elucidated. In this work, network pharmacology was applied to screen IR targets and their related pathways. The efficacy and mechanism of black quinoa polyphenols (BQP) on IR improvement were evaluated and uncovered based on the IR model in vitro combined with molecular docking. Ten phenolic constituents of BQP were detected, and the network pharmacology results show that PI3K/Akt pathways are the main pathways in BQP against IR. The in vitro assay proved that BQP increases the glucose consumption and glycogen synthesis via upregulating insulin receptor substrate 1 (IRS1)/PI3K/Akt/glucose transporters (GLUTs) signaling pathways to alleviate IR. Rutin, resveratrol, and catechin show lower binding energy docking with IRS1, PI3K, Akt, and GLUT4 proteins, indicating better interactions. It might be an effective constituent against IR. Hence, BQP could become a potential functional food source for blood glucose management among insulin-resistant people.
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Affiliation(s)
- Mingyuan Cao
- College of Engineering/National R&D Center for Chinese Herbal Medicine Processing, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
| | - Jie Wang
- College of Engineering/National R&D Center for Chinese Herbal Medicine Processing, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
| | - Xueying Jiang
- College of Engineering/National R&D Center for Chinese Herbal Medicine Processing, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
| | - Zhipeng Sun
- College of Engineering/National R&D Center for Chinese Herbal Medicine Processing, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
| | - Liyan Zhao
- College of Food Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing, Jiangsu 210095, China
| | - Guitang Chen
- College of Engineering/National R&D Center for Chinese Herbal Medicine Processing, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
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Shao M, Zhao W, Shen K, Jin H. Peptides from Harpadon nehereus Bone Ameliorate Angiotensin II-Induced HUVEC Injury and Dysfunction through Activation of the AKT/eNOS and Nrf2 Pathway. ACS OMEGA 2023; 8:41655-41663. [PMID: 37969981 PMCID: PMC10634246 DOI: 10.1021/acsomega.3c05908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 11/17/2023]
Abstract
Angiotensin II (Ang II)-induced vascular endothelial cell injury and dysfunction are important pathophysiological factors in the occurrence and development of hypertension. In this study, the amelioration effects of two peptides KA-8 (KLHDEEVA) and PG-7 (PSRILYG) from Harpadon nehereus bone on Ang II-induced damage and dysfunction in human umbilical vein endothelial cells (HUVECs) were investigated. The results showed that they could significantly decrease the reactive oxygen species (ROS) level and increase the activity of antioxidant enzymes in Ang II-induced HUVEC. Two peptides, especially PG-7, significantly upregulated the expression of nuclear factor erythroid 2-related factor 2 (Nrf2). In addition, PG-7 significantly reduced the level of expression of endothelin-1(ET-1) and increased the phosphorylation level of phosphoinositide 3-kinase (PI3K), serine/threonine kinase (AKT), and nitric oxide synthase (eNOS). These results indicated that the two peptides, especially PG-7, can ameliorate angiotensin II-induced HUVEC injury and dysfunction through activation of the AKT/eNOS and Nrf2 pathway. Furthermore, PG-7 showed a stronger affinity with angiotensin-converting enzyme (ACE) and ACE inhibitory than KA-8. In conclusion, peptide PG-7 reveals potential in the prevention and treatment of hypertension.
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Affiliation(s)
- Manfen Shao
- Zhoushan
Women and Children Hosptital, Zhoushan 316022, China
| | - Wei Zhao
- Zhejiang
Provincial Engineering Technology Research Center of Marine Biomedical
Products, School of Food and Pharmacy, Zhejiang
Ocean University, Zhoushan 316022, China
| | - Kai Shen
- Zhoushan
Women and Children Hosptital, Zhoushan 316022, China
| | - Huoxi Jin
- Zhejiang
Provincial Engineering Technology Research Center of Marine Biomedical
Products, School of Food and Pharmacy, Zhejiang
Ocean University, Zhoushan 316022, China
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12
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Diao H, Li X, Xu Y, Xing X, Pang S. Asprosin, a novel glucogenic adipokine implicated in type 2 diabetes mellitus. J Diabetes Complications 2023; 37:108614. [PMID: 37769508 DOI: 10.1016/j.jdiacomp.2023.108614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 09/12/2023] [Accepted: 09/17/2023] [Indexed: 10/03/2023]
Abstract
Asprosin, encoded by penultimate two exons (exon 65 and exon 66) of the gene Fibrillin 1 (FBN1), has been recently discovered to be a novel hormone secreted by white adipose tissues during fasting. The glucose metabolism disorders are often accompanied by increased asprosin level. Previous research suggests that asprosin may contribute to the development of diabetes by regulating glucose homeostasis, appetite, insulin secretion, and insulin sensitivity. In this review, we summarize the recent findings from studies on asprosin and its association with Type 2 diabetes mellitus, and discusses its mechanisms from various aspects, so as to provide clinical diagnosis and treatment ideas for T2DM.
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Affiliation(s)
- Hongcui Diao
- Department of Endocrinology, Jinan Central Hospital, Shandong University, Jinan, China
| | - Xue Li
- Department of Infectious Diseases, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Yeqiu Xu
- Department of Eye, Oral & Plastic Surgery, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Xiuli Xing
- Department of Endocrinology, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Shuguang Pang
- Department of Endocrinology, Jinan Central Hospital, Shandong University, Jinan, China; Department of Endocrinology, Jinan Central Hospital Affiliated to Shandong First Medical University, Jinan, China.
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13
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Hu Y, Ni C, Wang Y, Yu X, Wu H, Tu J, Li C, Xiao Z, Wen L. Research Progress on the Preparation and Function of Antioxidant Peptides from Walnuts. Int J Mol Sci 2023; 24:14853. [PMID: 37834300 PMCID: PMC10573205 DOI: 10.3390/ijms241914853] [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: 08/28/2023] [Revised: 09/28/2023] [Accepted: 10/01/2023] [Indexed: 10/15/2023] Open
Abstract
Food-derived peptides have good antioxidant activity and are highly safe for humans; consequently, there has been continuous growth in research on antioxidants, with potential applications in food, medicine, cosmetics, and other fields. Among food-derived peptides, walnut-derived peptides have attracted increasing attention as food-derived peptides rich in eight essential amino acids. This review summarizes the progress made in the development and identification of antioxidant peptides in walnut proteins. This article mainly describes the interaction between reactive oxygen species and cellular antioxidant products, modulation of enzyme content and activity, and regulation of the redox signaling pathways and analyzes the mechanisms of reduction in oxidative stress. Finally, the complex structure-activity relationships of walnut-derived peptides are analyzed based on their amino acid composition and secondary structure of the polypeptides. This review provides a theoretical basis for the production of walnut-derived antioxidant peptides and could help promote the development of the walnut industry.
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Affiliation(s)
- Yuxi Hu
- School of Food Science and Bioengineering, Changsha University of Science & Technology, Changsha 410114, China (H.W.)
| | - Ce Ni
- School of Food Science and Bioengineering, Changsha University of Science & Technology, Changsha 410114, China (H.W.)
| | - Yingying Wang
- School of Food Science and Bioengineering, Changsha University of Science & Technology, Changsha 410114, China (H.W.)
| | - Xun Yu
- School of Food Science and Bioengineering, Changsha University of Science & Technology, Changsha 410114, China (H.W.)
| | - Hao Wu
- School of Food Science and Bioengineering, Changsha University of Science & Technology, Changsha 410114, China (H.W.)
| | - Jia Tu
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha 410004, China
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Changzhu Li
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha 410004, China
| | - Zhihong Xiao
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha 410004, China
| | - Li Wen
- School of Food Science and Bioengineering, Changsha University of Science & Technology, Changsha 410114, China (H.W.)
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14
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Xu Z, Hu Q, Xie M, Liu J, Su A, Xu H, Yang W. Protective effects of peptide KSPLY derived from Hericium erinaceus on H2O2-induced oxidative damage in HepG2 cells. FOOD SCIENCE AND HUMAN WELLNESS 2023. [DOI: 10.1016/j.fshw.2023.02.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/28/2023]
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15
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Moguel-Concha DDR, Borges-Martínez JE, Cid-Gallegos MS, Juárez-Chairez MF, Gómez-Gómez AL, Téllez-Medina DI, Jiménez-Martínez C. Antioxidant and Renin Inhibitory Activities of Peptides from Food Proteins on Hypertension: A Review. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2023; 78:493-505. [PMID: 37578677 DOI: 10.1007/s11130-023-01085-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/24/2023] [Indexed: 08/15/2023]
Abstract
Hypertension is a condition induced by oxidative stress causing an alteration in the endothelium, which increases the risk of suffering from other degenerative diseases. This review compiles the findings on peptides from food proteins with antioxidant and antihypertensive activities. Antihypertensive peptides are mainly focused on renin inhibition. Peptides containing hydrophobic amino acids have antioxidant and renin inhibitory activities, as reported by studies on the biological activity of peptides from various food sources evaluated separately and simultaneously. Peptides from food sources can present multiple biological activities. Moreover, antioxidant peptides have the potential to be evaluated against renin, offering an alternative for hypertension therapy without causing adverse side effects.
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Affiliation(s)
- Deyanira Del Rosario Moguel-Concha
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, CDMX, Av. Wilfrido Massieu Esq. Cda. Miguel Stampa S/N, Delegación Gustavo A. Madero, C.P. 07738, Coahuila, México
| | - José Eduardo Borges-Martínez
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, CDMX, Av. Wilfrido Massieu Esq. Cda. Miguel Stampa S/N, Delegación Gustavo A. Madero, C.P. 07738, Coahuila, México
| | - María Stephanie Cid-Gallegos
- Unidad Profesional Interdisciplinaria de Biotecnología, Instituto Politécnico Nacional, Delegación Gustavo A. Madero, CDMX, Av. Acueducto. La Laguna Ticomán, C.P. 07340, Coahuila, México
| | - Milagros Faridy Juárez-Chairez
- Unidad Académica de Ciencias Biológicas, Universidad Autónoma de Zacatecas, Calzada de la Revolución Mexicana S/N, La Fe. C.P. 98615, Guadalupe, Zacatecas, México
| | - Ana Luisa Gómez-Gómez
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, CDMX, Av. Wilfrido Massieu Esq. Cda. Miguel Stampa S/N, Delegación Gustavo A. Madero, C.P. 07738, Coahuila, México
| | - Darío Iker Téllez-Medina
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, CDMX, Av. Wilfrido Massieu Esq. Cda. Miguel Stampa S/N, Delegación Gustavo A. Madero, C.P. 07738, Coahuila, México
| | - Cristian Jiménez-Martínez
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, CDMX, Av. Wilfrido Massieu Esq. Cda. Miguel Stampa S/N, Delegación Gustavo A. Madero, C.P. 07738, Coahuila, México.
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16
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Wang A, Guan C, Wang T, Mu G, Tuo Y. Changes in Intracellular and Extracellular Metabolites of Mixed Lactobacillus Strains Enhance Inhibition of Pathogenic Bacterial Growth and Lipopolysaccharide-Induced Alleviation of RAW264.7 Cellular Inflammation. Probiotics Antimicrob Proteins 2023:10.1007/s12602-023-10132-z. [PMID: 37632677 DOI: 10.1007/s12602-023-10132-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/27/2023] [Indexed: 08/28/2023]
Abstract
It is important to explore whether there are antagonistic and synergistic effects between different strains of Lactobacillus when developing mixed Lactobacillus strain products. In this study, we investigated the antagonistic and symbiotic effects of co-cultured Lactobacillus strains, as well as their amelioratory effects on lipopolysaccharide (LPS)-induced inflammation and oxidative stress in RAW264.7 cells. The Lactobacillus strains tested in this paper showed no antagonism. Co-culture of Lactiplantibacillus plantarum Y44 and L. plantarum AKS-WS9 was found to show inhibiting effects on the growth of Escherichia coli and Staphylococcus aureus. Additionally, the co-cultured Lactiplantibacillus plantarum Y44 and L. plantarum AKS-WS9 relieved inflammation in RAW264.7 cells induced by LPS by inhibiting the activation of NF-κB and P38 signaling pathways and down-regulating the expression of pro-inflammatory cytokines NO, ROS, iNOs and TNF-α. And the co-cultured Lactobacillus strains activated the Nrf2 signaling pathway in the LPS-induced RAW264.7 cells to promote the expression of antioxidant enzymes in response to oxidative stress. There was a difference in intracellular and extracellular metabolites between single or co-cultured Lactobacillus strains, and the co-cultured Lactobacillus strains significantly increased extracellular metabolites 4-chlorobenzaldehyde, psoromic acid, and 2-dodecylbenzenesulfonic acid and intracellular metabolites 9(S)-HODE, pyocyanin, and LysoPA. We inferred that the better antibacterial and anti-inflammatory ability of the co-cultured Lactobacillus strains were related to the changes in the metabolites of the co-cultured Lactobacillus strains. The co-cultured L. plantarum Y44 and L. plantarum AKS-WS9 strains exhibited better anti-inflammatory abilities and had the potential to alleviate the symptoms of inflammatory diseases as mixed probiotics.
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Affiliation(s)
- Arong Wang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, 116034, People's Republic of China
- Dalian Probiotics, Function Research Key Laboratory, Dalian Polytechnic University, Dalian, 116034, People's Republic of China
| | - Chen Guan
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, 116034, People's Republic of China
- Dalian Probiotics, Function Research Key Laboratory, Dalian Polytechnic University, Dalian, 116034, People's Republic of China
| | - Tieqi Wang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, 116034, People's Republic of China
- Dalian Probiotics, Function Research Key Laboratory, Dalian Polytechnic University, Dalian, 116034, People's Republic of China
| | - Guangqing Mu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, 116034, People's Republic of China
- Dalian Probiotics, Function Research Key Laboratory, Dalian Polytechnic University, Dalian, 116034, People's Republic of China
| | - Yanfeng Tuo
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, 116034, People's Republic of China.
- Dalian Probiotics, Function Research Key Laboratory, Dalian Polytechnic University, Dalian, 116034, People's Republic of China.
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17
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Wen C, Zhang Z, Cao L, Liu G, Liang L, Liu X, Zhang J, Li Y, Yang X, Li S, Ren J, Xu X. Walnut Protein: A Rising Source of High-Quality Protein and Its Updated Comprehensive Review. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023. [PMID: 37399339 DOI: 10.1021/acs.jafc.3c01620] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/05/2023]
Abstract
Recently, plant protein as a necessary nutrient source for human beings, a common ingredient of traditional processed food, and an important element of new functional food has gained prominence due to the increasing demand for healthy food. Walnut protein (WP) is obtained from walnut kernels and walnut oil-pressing waste and has better nutritional, functional, and essential amino acids in comparison with other vegetable and grain proteins. WP can be conveniently obtained by various extraction techniques, including alkali-soluble acid precipitation, salting-out, and ultrasonic-assisted extraction, among others. The functional properties of WP can be modified for desired purposes by using some novel methods, including free radical oxidation, enzymatic modification, high hydrostatic pressure, etc. Moreover, walnut peptides play an important biological role both in vitro and in vivo. The main activities of the walnut peptides are antihypertensive, antioxidant, learning improvement, and anticancer, among others. Furthermore, WP could be applied in the development of functional foods or dietary supplements, such as delivery systems and food additives, among others. This review summarizes recent knowledge on the nutritional, functional, and bioactive peptide aspects of WP and possible future products, providing a theoretical reference for the utilization and development of oil crop waste.
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Affiliation(s)
- Chaoting Wen
- College of Food Science and Engineering, Yangzhou University, Yang Zhou 225127, China
| | - Zhiyi Zhang
- College of Food Science and Engineering, Yangzhou University, Yang Zhou 225127, China
| | - Liyan Cao
- College of Food Science and Engineering, Yangzhou University, Yang Zhou 225127, China
| | - Guoyan Liu
- College of Food Science and Engineering, Yangzhou University, Yang Zhou 225127, China
| | - Li Liang
- College of Food Science and Engineering, Yangzhou University, Yang Zhou 225127, China
| | - Xiaofang Liu
- School of Tourism and Cuisine, Yangzhou University, Yangzhou 225127, China
| | - Jixian Zhang
- College of Food Science and Engineering, Yangzhou University, Yang Zhou 225127, China
| | - Youdong Li
- College of Food Science and Engineering, Yangzhou University, Yang Zhou 225127, China
| | - Xinquan Yang
- Dongguan Chuangwei Precision Nutrition and Health Innovation Center, Dong guan 523000, China
| | - Shugang Li
- Engineering Research Center of Bio-process, Ministry of Education/Key Laboratory for Agricultural Products Processing of Anhui Province/School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, China
| | - Jiaoyan Ren
- School of Food Science and Engineering, South China University of Technology, Guangzhou, Guangdong 51064, China
| | - Xin Xu
- College of Food Science and Engineering, Yangzhou University, Yang Zhou 225127, China
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18
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Manzoor M, Mir RA, Farooq A, Hami A, Pakhtoon MM, Sofi SA, Malik FA, Hussain K, Bhat MA, Sofi NR, Pandey A, Khan MK, Hamurcu M, Zargar SM. Shifting archetype to nature's hidden gems: from sources, purification to uncover the nutritional potential of bioactive peptides. 3 Biotech 2023; 13:252. [PMID: 37388856 PMCID: PMC10299963 DOI: 10.1007/s13205-023-03667-z] [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: 10/28/2022] [Accepted: 06/11/2023] [Indexed: 07/01/2023] Open
Abstract
Contemporary scientific findings revealed that our daily food stuffs are enriched by encrypted bioactive peptides (BPs), evolved by peptide linkage of amino acids or encrypted from the native protein structures. Remarkable to these BPs lies in their potential health benefiting biological activities to serve as nutraceuticals or a lead addition to the development of functional foods. The biological activities of BPs vary depending on the sequence as well as amino acid composition. Existing database records approximately 3000 peptide sequences which possess potential biological activities such as antioxidants, antihypertensive, antithrombotic, anti-adipogenics, anti-microbials, anti-inflammatory, and anti-cancerous. The growing evidences suggest that BPs have very low toxicity, higher accuracy, less tissue accretion, and are easily degraded in the disposed environment. BPs are nowadays evolved as biologically active molecules with potential scope to reduce microbial contamination as well as ward off oxidation of foods, amend diverse range of human diseases to enhance the overall quality of human life. Against the clinical and health perspectives of BPs, this review aimed to elaborate current evolution of nutritional potential of BPs, studies pertaining to overcome limitations with respect to special focus on emerging extraction, protection and delivery tools of BPs. In addition, the nano-delivery mechanism of BP and its clinical significance is detailed. The aim of current review is to augment the research in the field of BPs production, identification, characterisation and to speed up the investigation of the incredible potentials of BPs as potential nutritional and functional food ingredient.
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Affiliation(s)
- Madhiya Manzoor
- Proteomics Laboratory, Division of Plant Biotechnology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir (SKUAST-K), Shalimar, Kashmir(J&K) 190025 India
| | - Rakeeb Ahmad Mir
- Department of Biotechnology, Central University of Kashmir, Tulmulla, Kashmir(J&K) 191131 India
| | - Asmat Farooq
- Proteomics Laboratory, Division of Plant Biotechnology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir (SKUAST-K), Shalimar, Kashmir(J&K) 190025 India
- Division of Biochemistry, Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu (SKUAST-J), Chatha, Jammu (J&K) 180009 India
| | - Ammarah Hami
- Proteomics Laboratory, Division of Plant Biotechnology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir (SKUAST-K), Shalimar, Kashmir(J&K) 190025 India
| | - Mohammad Maqbool Pakhtoon
- Proteomics Laboratory, Division of Plant Biotechnology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir (SKUAST-K), Shalimar, Kashmir(J&K) 190025 India
- Department of Life Sciences, Rabindranath Tagore University, Bhopal, 462045 India
| | - Sajad Ahmad Sofi
- Department of Food Technology, Islamic University of Science and Technology Awantipora, Awantipora, Kashmir(J&K) 192122 India
| | - Firdose Ahmad Malik
- Division of Vegetable Science, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir (SKUAST-K), Shalimar, Kashmir(J&K) 190025 India
| | - khursheed Hussain
- MAR&ES, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir (SKUAST-K), Gurez, Shalimar, Kashmir(J&K) 190025 India
| | - M. Ashraf Bhat
- Proteomics Laboratory, Division of Plant Biotechnology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir (SKUAST-K), Shalimar, Kashmir(J&K) 190025 India
| | - Najeebul Rehmen Sofi
- MRCFC, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Khudwani, Shalimar, J&K India
| | - Anamika Pandey
- Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Selcuk University, Konya, 42079 Turkey
| | - Mohd. Kamran Khan
- Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Selcuk University, Konya, 42079 Turkey
| | - Mehmet Hamurcu
- Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Selcuk University, Konya, 42079 Turkey
| | - Sajad Majeed Zargar
- Proteomics Laboratory, Division of Plant Biotechnology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir (SKUAST-K), Shalimar, Kashmir(J&K) 190025 India
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Fan X, Jiao G, Pang T, Wen T, He Z, Han J, Zhang F, Chen W. Ameliorative effects of mangiferin derivative TPX on insulin resistance via PI3K/AKT and AMPK signaling pathways in human HepG2 and HL-7702 hepatocytes. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 114:154740. [PMID: 36965373 DOI: 10.1016/j.phymed.2023.154740] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/20/2023] [Accepted: 03/04/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND As a multifaceted metabolic disorder, insulin resistance is accompanied by the preceding onset of type 2 diabetes mellitus, hyperinsulinemia, metabolic dysfunction-associated fatty liver disease (MAFLD) and other metabolic syndromes. Currently, the number of existing drugs and mechanism-based strategies is limited to alleviate insulin resistance in clinics. As a natural polyphenol product derivative, 1,3,6,7-tetrapropylene acyloxy-ketone (TPX) showed a significant hypoglycemic effect in our previous studies. However, whether TPX could improve hepatic insulin sensitivity was unknown. PURPOSE To explore whether insulin sensitivity can be improved by the treatment with TPX and further investigate its mechanism(s) of activity. METHODS To mimic hyperglycemia and insulin resistance in vitro, human HepG2 and HL-7702 hepatocytes were exposed to high glucose. Cellular glucose uptake, glucose consumption, glycogen synthesis, and glucose production were quantified after TPX treatment. The effects of TPX on AMP-activated protein kinase (AMPK) phosphorylation, glucose metabolism, and insulin signal transduction were evaluated by western blotting and network pharmacology analysis. The eGFP-membrane of glucose transporter type 4 (GLUT4) lentivirus transfected cells were constructed to investigate the effects of TPX on GLUT4 mobilization. Reactive oxygen species activity in high glucose-induced insulin-resistant cells was measured by DCFH-DA to show oxidative stress. RESULTS Treatment with TPX improved glycogen synthesis and inhibited gluconeogenesis by regulating GSK3β, G6Pase, and PEPCK. Furthermore, high glucose-induced inhibition of glucose consumption, glucose uptake, and GLUT4-mediated membrane translocation were reverted by TPX. Accordingly, mechanistic investigations revealed that TPX interacted with AMPK protein and activated the phosphorylation of AKT, thereby improving energy homeostasis and further ameliorating hepatic insulin resistance. Network pharmacology analysis and molecular docking further confirmed AMPK as an active target of TPX. Concordantly, the pharmacological activity of TPX was reversed by the AMPK inhibitor compound C when hepatocytes were exposed to high glucose stimulation. CONCLUSION In summary, our study confirmed TPX contributions to insulin resistance improvements by targeting AMPK and PI3K/AKT to restore the insulin signaling pathway, which may be an important potential treatment strategy for insulin-resistance-related diseases, including MAFLD and diabetes.
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Affiliation(s)
- Xiangcheng Fan
- Department of Pharmacy, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai 200003, China; Shanghai Key Laboratory for Pharmaceutical Metabolite Research, Shanghai 200433, China
| | - Guangyang Jiao
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Tao Pang
- Department of Pharmacy, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai 200003, China
| | - Tao Wen
- Department of Pharmacy, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai 200003, China; Shanghai Key Laboratory for Pharmaceutical Metabolite Research, Shanghai 200433, China
| | - Zhiqing He
- Department of Cardiology, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai 200003, China
| | - Jun Han
- Department of Gastroenterology, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai 200003, China.
| | - Feng Zhang
- Department of Pharmacy, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai 200003, China; Shanghai Key Laboratory for Pharmaceutical Metabolite Research, Shanghai 200433, China.
| | - Wansheng Chen
- Department of Pharmacy, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai 200003, China; Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; Shanghai Key Laboratory for Pharmaceutical Metabolite Research, Shanghai 200433, China.
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20
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Wang W, Yang W, Dai Y, Liu J, Chen ZY. Production of Food-Derived Bioactive Peptides with Potential Application in the Management of Diabetes and Obesity: A Review. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023. [PMID: 37027889 DOI: 10.1021/acs.jafc.2c08835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
The prevalence of diabetes mellitus and obesity is increasing worldwide. Bioactive peptides are naturally present in foods or in food-derived proteins. Recent research has shown that these bioactive peptides have an array of possible health benefits in the management of diabetes and obesity. First, this review will summarize the top-down and bottom-up production methods of the bioactive peptides from different protein sources. Second, the digestibility, bioavailability, and metabolic fate of the bioactive peptides are discussed. Last, the present review will discuss and explore the mechanisms by which these bioactive peptides help against obesity and diabetes based on in vitro and in vivo studies. Although several clinical studies have demonstrated that bioactive peptides are beneficial in alleviating diabetes and obesity, more double-blind randomized controlled trials are needed in the future. This review has provided novel insights into the potential of food-derived bioactive peptides as functional foods or nutraceuticals to manage obesity and diabetes.
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Affiliation(s)
- Weiwei Wang
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China
| | - Wenjian Yang
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China
| | - Yi Dai
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China
| | - Jianhui Liu
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China
| | - Zhen-Yu Chen
- Food & Nutritional Sciences Programme, School of Life Sciences, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China
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Gu F, Tao L, Chen R, Zhang J, Wu X, Yang M, Sheng J, Tian Y. Ultrasonic-Cellulase Synergistic Extraction of Crude Polysaccharides from Moringa oleifera Leaves and Alleviation of Insulin Resistance in HepG2 Cells. Int J Mol Sci 2022; 23:12405. [PMID: 36293262 PMCID: PMC9604441 DOI: 10.3390/ijms232012405] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/14/2022] [Accepted: 10/14/2022] [Indexed: 11/15/2023] Open
Abstract
Moringa oleifera leaves (MOL) are a new food resource, rich in functional factors. MOL polysaccharides are important active macromolecules within MOL. However, there are problems, such as low extraction rates and lack of evidence for functional activity. Therefore, in this experiment, single-factor experiments were carried out using MOL powder as the raw material, and the Plackett-Burman test was used to screen the significantly influential test factors. The extraction process of MOL polysaccharide was optimized by response surface methodology. The insulin resistance alleviating activity of MOLP polysaccharides was initially explored. The results showed that the extraction of Moringa oleifera leaves crude polysaccharides (MOLP) by ultrasonic assisted cellulase enzymatic digestion was (17.03 ± 1.03)%, and the obtained MOLP was a crude polysaccharide with an average molecular weight (Mw) of 279.48 kDa, consisting of fucose, rhamnose, arabinose, galactose, glucose, xylose, mannose, galacturonic acid, and glucuronic acid. MOLP had an IC50 value of 8.02 mg/mL for α-glucosidase and scavenging activity against free radicals such as ABTS, DPPH, hydroxyl radicals, and superoxide anion with an IC50 value of 0.21 mg/mL 0.31 mg/mL 0.97 mg/mL 0.49 mg/mL. At the same time, MOLP significantly enhanced the glucose consumption, glycogen synthesis, CAT, SOD, GSH-Px activity, and reduced the MDA and ROS content in high glucose-induced insulin-resistant HepG2 (IR-HepG2) cells. This experiment improved the extraction rate of MOLP and demonstrated that MOLP has antioxidant activity and α-glucosidase inhibitory activity, which can alleviate the insulin resistance of high glucose-induced HepG2 cells. It provides partial data support for the possible hypoglycemic effect of MOLP by alleviating oxidative stress, and also provides new ideas for the in-depth study of basic research and industrial application of MOLP.
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Affiliation(s)
- Fan Gu
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
- National Research and Development Professional Center for Moringa Processing Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Liang Tao
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
- National Research and Development Professional Center for Moringa Processing Technology, Yunnan Agricultural University, Kunming 650201, China
- Engineering Research Center of Development and Utilization of Food and Drug Homologous Resources, Ministry of Education, Yunnan Agricultural University, Kunming 650201, China
| | - Runling Chen
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Jiao Zhang
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Xingzhong Wu
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Min Yang
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
- National Research and Development Professional Center for Moringa Processing Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Jun Sheng
- Yunnan Provincial Engineering Research Center for Edible and Medicinal Homologous Functional Food, Yunnan Agricultural University, Kunming 650201, China
| | - Yang Tian
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
- National Research and Development Professional Center for Moringa Processing Technology, Yunnan Agricultural University, Kunming 650201, China
- Engineering Research Center of Development and Utilization of Food and Drug Homologous Resources, Ministry of Education, Yunnan Agricultural University, Kunming 650201, China
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22
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Yao M, Xu F, Yao Y, Wang H, Ju X, Wang L. Assessment of Novel Oligopeptides from Rapeseed Napin ( Brassica napus) in Protecting HepG2 Cells from Insulin Resistance and Oxidative Stress. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:12418-12429. [PMID: 36129441 DOI: 10.1021/acs.jafc.2c03718] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Oligopeptides (Thr-His-Leu-Pro-Lys (THLPK), His-Pro-Leu-Lys (HPLK), Leu-Pro-Lys (LPK), His-Leu-Lys (HLK), and Leu-His-Lys (LHK)) are newly identified from rapeseed napin (Brassica napus) protein-derived hydrolysates with the capability of upregulating glucose transporter-4 (GLUT4) expression and translocation. However, whether each of them enhances GLUT4 expression and translocation and their specific mechanisms remain unclear. Here, we assess the effects of the oligopeptides against insulin resistance (IR) and oxidative stress in hepatocytes and screen out the most antidiabetic one. Specifically, compared with other oligopeptides, LPK not only remarkably elevated glucose consumption to 8.45 mmol/L protein; superoxide dismutase (SOD) activity to 319 U/mg protein; GLUT4 expression and translocation; and phosphorylated level of insulin receptor substrate-1 (IRS-1), phosphatidylinositol 3-kinase (PI3K), and protein kinase B (Akt) (P < 0.05) but also remarkably attenuated the reactive oxygen species (ROS) level to 2255, lactate dehydrogenase (LDH) activity to 20.5 U/mg protein, malondialdehyde (MDA) content to 241 nmol/mg protein, and NO content to 1302 μmol/mL protein (P < 0.05). These findings demonstrated that antidiabetic oligopeptide LPK possessed the most potential to protect HepG2 cells from IR and oxidative stress via activating IRS-1/PI3K/Akt/GLUT4 and regulating common oxidative markers in vitro.
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Affiliation(s)
- Meng Yao
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing University of Finance and Economics, Nanjing210023, Jiangsu, China
| | - Feiran Xu
- Engineering Research Center of Bio-process, Ministry of Education, School of Food and Biological Engineering, Hefei University of Technology, Hefei230009, Anhui, China
| | - Yijun Yao
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing University of Finance and Economics, Nanjing210023, Jiangsu, China
| | - Haiou Wang
- School of Food Science, Nanjing Xiaozhuang University, Nanjing210017, Jiangsu, China
| | - Xingrong Ju
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing University of Finance and Economics, Nanjing210023, Jiangsu, China
| | - Lifeng Wang
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing University of Finance and Economics, Nanjing210023, Jiangsu, China
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23
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Han S, You L, Hu Y, Wei S, Liu T, Cho JY, Hu W. Ginsenoside F2 enhances glucose metabolism by modulating insulin signal transduction in human hepatocarcinoma cells. J Ginseng Res 2022; 47:420-428. [DOI: 10.1016/j.jgr.2022.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 10/04/2022] [Accepted: 10/11/2022] [Indexed: 03/06/2023] Open
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24
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Zhang XG, Liu AX, Zhang YX, Zhou MY, Li XY, Fu MH, Pan YP, Xu J, Zhang JQ. A diarylheptanoid compound from Alpinia officinarum Hance ameliorates high glucose-induced insulin resistance by regulating PI3K/AKT-Nrf2-GSK3β signaling pathways in HepG2 cells. JOURNAL OF ETHNOPHARMACOLOGY 2022; 295:115397. [PMID: 35605918 DOI: 10.1016/j.jep.2022.115397] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 05/06/2022] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Alpinia officinarum Hance, a perennial natural medicine-food herb, has been traditionally used to treat colds, stomachache, and diabetes for thousands of years. 1,7-Diphenyl-4E-en-3-heptanone (DPH5), a diarylheptanoid isolated from the rhizome of A. officinarum has been reported to be safe and to have antioxidant and hypoglycemic effects, suggesting its potential in the treatment of insulin resistance (IR). AIM OF THE STUDY Aim of to investigate the protective effect of DPH5 on IR and elucidate its underlying mechanism of action. MATERIALS AND METHODS HepG2 cells were used as the research objects. Glucose uptake and reactive oxygen species (ROS) levels in high glucose-induced insulin-resistant HepG2 cells were assessed using flow cytometry. Glucose consumption and the levels of malondialdehyde (MDA) and superoxide dismutase (SOD) were analyzed using the corresponding assay kits. The expression of mRNA and proteins related to insulin signaling, glucose metabolism, and antioxidant factor, including insulin receptor substrate-1 (IRS1), phosphatidylinositol 3-kinase (PI3K), protein kinase B (AKT), translocation of glucose transporter-4, glycogen synthase kinase-3β (GSK3β), glucokinase (GCK), pyruvate kinase (PK), phosphoenolpyruvate carboxykinase (PEPCK), glucose-6-phosphatase (G6Pase), nuclear factor-erythroid 2 related factor 2 (Nrf2), heme oxygenase-1 (HO-1), NADPH quinoneoxidoreductase (NQO1), and glutathione peroxidase (GSH-Px) was determined using real-time quantitative polymerase chain reaction and western blotting. Furthermore, molecular docking was performed to determine the spatial mechanism of DPH5 on the key targets PI3K, AKT, Nrf2, and GSK3β. RESULTS DPH5 could improve IR that manifested as increased glucose uptake and glucose consumption in insulin-resistant HepG2 cells. Moreover, DPH5 could enhance antioxidant capacity by activating Nrf2/HO-1 elements, including increasing Nrf2, HO-1, SOD, NQO1, and GSH-Px expression and reducing MDA, ROS, and JNK levels, thereby improving oxidative stress and ultimately alleviating IR. Additionally, DPH5 could promote the expression of IRS1, PI3K, AKT, GSK3β, GCK, and PK, and downregulate the expression of PEPCK and G6pase, thereby accelerating glucose utilization and enhancing insulin sensitivity. The mechanism underlying the effect of DPH5 in alleviating IR was related to the PI3K/AKT- and Nrf2/HO-1-mediated regulation of the GSK3β signaling pathway, and the results were further confirmed using the specific inhibitors LY294002 and ML385. Results from molecular docking indicated that there were different regulatory sites and interacting forces between DPH5 and PI3K, AKT, Nrf2, and GSK3β; however, the binding force was relatively strong. CONCLUSIONS DPH5 improved oxidative stress and glucose metabolism via modulating the PI3K/AKT-Nrf2-GSK3β pathway, thereby ameliorating IR. Overall, our findings suggest the potential of DPH5 as a natural medicine to treat type-2 diabetes mellitus.
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Affiliation(s)
- Xu-Guang Zhang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou, 571199, China.
| | - Ai-Xia Liu
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou, 571199, China.
| | - Yu-Xin Zhang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou, 571199, China.
| | - Ming-Yan Zhou
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou, 571199, China.
| | - Xiang-Yi Li
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou, 571199, China.
| | - Ming-Hai Fu
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou, 571199, China.
| | - Yi-Peng Pan
- Department of Transplantation, The Second Affiliated Hospital of Hainan Medical University, Haikou, 571199, China.
| | - Jian Xu
- Department of Transplantation, The Second Affiliated Hospital of Hainan Medical University, Haikou, 571199, China.
| | - Jun-Qing Zhang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory for Research and Development of Tropical Herbs, Haikou Key Laboratory of Li Nationality Medicine, School of Pharmacy, Hainan Medical University, Haikou, 571199, China.
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Walnut Prevents Cognitive Impairment by Regulating the Synaptic and Mitochondrial Dysfunction via JNK Signaling and Apoptosis Pathway in High-Fat Diet-Induced C57BL/6 Mice. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27165316. [PMID: 36014555 PMCID: PMC9414791 DOI: 10.3390/molecules27165316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 08/18/2022] [Accepted: 08/19/2022] [Indexed: 11/30/2022]
Abstract
This study was conducted to evaluate the protective effect of Juglans regia (walnut, Gimcheon 1ho cultivar, GC) on high-fat diet (HFD)-induced cognitive dysfunction in C57BL/6 mice. The main physiological compounds of GC were identified as pedunculagin/casuariin isomer, strictinin, tellimagrandin I, ellagic acid-O-pentoside, and ellagic acid were identified using UPLC Q-TOF/MS analysis. To evaluate the neuro-protective effect of GC, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), 2′,7′-dichlorodihydrofluorecein diacetate (DCF-DA) analysis were conducted in H2O2 and high glucose-induced neuronal PC12 cells and hippocampal HT22 cells. GC presented significant cell viability and inhibition of reactive oxygen species (ROS) production. GC ameliorated behavioral and memory dysfunction through Y-maze, passive avoidance, and Morris water maze tests. In addition, GC reduced white adipose tissue (WAT), liver fat mass, and serum dyslipidemia. To assess the inhibitory effect of antioxidant system deficit, lipid peroxidation, ferric reducing antioxidant power (FRAP), and advanced glycation end products (AGEs) were conducted. Administration of GC protected the antioxidant damage against HFD-induced diabetic oxidative stress. To estimate the ameliorating effect of GC, acetylcholine (ACh) level, acetylcholinesterase (AChE) activity, and expression of AChE and choline acetyltransferase (ChAT) were conducted, and the supplements of GC suppressed the cholinergic system impairment. Furthermore, GC restored mitochondrial dysfunction by regulating the mitochondrial ROS production and mitochondrial membrane potential (MMP) levels in cerebral tissues. Finally, GC ameliorated cerebral damage by synergically regulating the protein expression of the JNK signaling and apoptosis pathway. These findings suggest that GC could provide a potential functional food source to improve diabetic cognitive deficits and neuronal impairments.
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Ultrasonic-Assisted Extraction of Flavonoids from Juglans mandshurica Maxim.: Artificial Intelligence-Based Optimization, Kinetics Estimation, and Antioxidant Potential. Molecules 2022; 27:molecules27154837. [PMID: 35956798 PMCID: PMC9369614 DOI: 10.3390/molecules27154837] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/16/2022] [Accepted: 07/25/2022] [Indexed: 12/02/2022] Open
Abstract
Ultrasonic-assisted extraction (UAE) of flavonoids (JMBF) from Juglans mandshurica Maxim., an important industrial crop in China, was investigated in the present study. To improve the extraction efficiency of JMBF, suitable UAE was proposed after optimization using a hybrid response surface methodology–artificial neural network–genetic algorithm approach (RSM–ANN–GA). The maximum extraction yield (6.28 mg·g−1) of JMBF was achieved using the following optimum UAE conditions: ethanol concentration, 62%; solid–liquid ratio, 1:20 g·mL−1; ultrasonic power, 228 W; extraction temperature, 60 °C; extraction time, 40 min; total number of extractions, 1. Through the investigation of extraction kinetics, UAE offered a higher saturated concentration (Cs) for JMBF in comparison to traditional solvent extraction (TSE). Scanning electron microscopy (SEM) images showed that deeper holes were generated in J. mandshurica powder under the action of ultrasound, indicating that ultrasound significantly changed the structure of the plant materials to facilitate the dissolution of active substances. Extracts obtained using UAE and TSE were compared by Fourier-transform infrared spectroscopy analysis, the results of which revealed that the functional group of bioactive compounds in the extract was unaffected by the ultrasonication process. Moreover, JMBF was further shown to exhibit significant antioxidant properties in vitro. This study provides a basis for the application of JMBF as a natural antioxidant.
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27
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Inosine Pretreatment Attenuates LPS-Induced Lung Injury through Regulating the TLR4/MyD88/NF-κB Signaling Pathway In Vivo. Nutrients 2022; 14:nu14142830. [PMID: 35889786 PMCID: PMC9318366 DOI: 10.3390/nu14142830] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/04/2022] [Accepted: 07/07/2022] [Indexed: 12/10/2022] Open
Abstract
Inosine is a type of purine nucleoside, which is considered to a physiological energy source, and exerts a widely range of anti-inflammatory efficacy. The TLR4/MyD88/NF-κB signaling pathway is essential for preventing host oxidative stresses and inflammation, and represents a promising target for host-directed strategies to improve some forms of disease-related inflammation. In the present study, the results showed that inosine pre-intervention significantly suppressed the pulmonary elevation of pro-inflammatory cytokines (including tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β)), malondialdehyde (MDA), nitric oxide (NO), and reactive oxygen species (ROS) levels, and restored the pulmonary catalase (CAT), glutathione peroxidase (GSH-Px), superoxide dismutase (SOD), and myeloperoxidase (MPO) activities (p < 0.05) in lipopolysaccharide (LPS)-treated mice. Simultaneously, inosine pre-intervention shifted the composition of the intestinal microbiota by decreasing the ratio of Firmicutes/Bacteroidetes, elevating the relative abundance of Tenericutes and Deferribacteres. Moreover, inosine pretreatment affected the TLR4/MyD88/NF-κB signaling pathway in the pulmonary inflammatory response, and then regulated the expression of pulmonary iNOS, COX2, Nrf2, HO-1, TNF-α, IL-1β, and IL-6 levels. These findings suggest that oral administration of inosine pretreatment attenuates LPS-induced pulmonary inflammatory response by regulating the TLR4/MyD88/NF-κB signaling pathway, and ameliorates intestinal microbiota disorder.
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28
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Sturgeon protein-derived peptide KIWHHTF prevents insulin resistance via modulation of IRS-1/PI3K/AKT signaling pathways in HepG2 cells. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.105126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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29
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Yao M, Yao Y, Qin B, Pan M, Ju X, Xu F, Wang L. Screening and identification of high bioavailable oligopeptides from rapeseed napin (Brassica napus) protein-derived hydrolysates via Caco-2/HepG2 co-culture model. Food Res Int 2022; 155:111101. [DOI: 10.1016/j.foodres.2022.111101] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 02/02/2022] [Accepted: 03/01/2022] [Indexed: 02/09/2023]
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30
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Advances in the activity evaluation and cellular regulation pathways of food-derived antioxidant peptides. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2022.02.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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31
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Jahandideh F, Bourque SL, Wu J. A comprehensive review on the glucoregulatory properties of food-derived bioactive peptides. Food Chem X 2022; 13:100222. [PMID: 35498998 PMCID: PMC9039931 DOI: 10.1016/j.fochx.2022.100222] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 01/03/2022] [Accepted: 01/18/2022] [Indexed: 02/07/2023] Open
Abstract
Diabetes mellitus, a group of metabolic disorders characterized by persistent hyperglycemia, affects millions of people worldwide and is on the rise. Dietary proteins, from a wide range of food sources, are rich in bioactive peptides with antidiabetic properties. Notable examples include AGFAGDDAPR, a black tea-derived peptide, VRIRLLQRFNKRS, a β-conglycinin-derived peptide, and milk-derived peptide VPP, which have shown antidiabetic effects in diabetic rodent models through variety of pathways including improving beta-cells function, suppression of alpha-cells proliferation, inhibiting food intake, increasing portal cholecystokinin concentration, enhancing insulin signaling and glucose uptake, and ameliorating adipose tissue inflammation. Despite the immense research on glucoregulatory properties of bioactive peptides, incorporation of these bioactive peptides in functional foods or nutraceuticals is widely limited due to the existence of several challenges in the field of peptide research and commercialization. Ongoing research in this field, however, is fundamental to pave the road for this purpose.
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Key Words
- AMPK, AMP-activated protein kinase
- Akt, Protein kinase B
- Bioactive peptides
- C/EBP-α, CCAAT/ enhancer binding protein alpha
- CCK, Cholecystokinin
- CCK-1R, CCK type 1 receptor
- DPP-IV, Dipeptidyl peptidase IV
- Diabetes mellitus
- ERK1/2, Extracellular signal regulated kinase 1/2
- GIP, Glucose-dependent insulinotropic polypeptide
- GLP-1, Glucagon-like peptide 1
- GLUT, Glucose transporter
- Glucose homeostasis
- IRS-1, Insulin receptor substrate-1
- Insulin resistance
- MAPK, Mitogen activated protein kinase
- PI3K, Phosphatidylinositol 3-kinase
- PPARγ, Peroxisome proliferator associated receptor gamma
- Reproductive dysfunction
- TZD, Thiazolidinedione
- cGMP, cyclic guanosine-monophosphate
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Affiliation(s)
- Forough Jahandideh
- Department of Anesthesiology & Pain Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB T6G 2G3, Canada.,Cardiovascular Research Centre, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, AB T6G 2S2, Canada
| | - Stephane L Bourque
- Department of Anesthesiology & Pain Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB T6G 2G3, Canada.,Cardiovascular Research Centre, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, AB T6G 2S2, Canada
| | - Jianping Wu
- Cardiovascular Research Centre, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, AB T6G 2S2, Canada.,Department of Agricultural, Food and Nutritional Science, Faculty of Agricultural, Life and Environmental Sciences, University of Alberta, Edmonton, AB T6G 2P5, Canada
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32
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Chen X, Zhao H, Meng F, Zhou L, Pang X, Lu Z, Lu Y. Ameliorated effects of a lipopeptide surfactin on insulin resistance in vitro and in vivo. Food Sci Nutr 2022; 10:2455-2469. [PMID: 35844917 PMCID: PMC9281957 DOI: 10.1002/fsn3.2852] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 02/24/2022] [Accepted: 03/15/2022] [Indexed: 01/21/2023] Open
Abstract
Surfactin, produced by Bacillus amyloliquefaciens fmb50, was used to treat insulin‐resistant (IR) hepatocyte. It was found that surfactin increased glucose consumption in insulin‐resistant HepG2 (IR‐HepG2) cells and ameliorated IR by increasing glucose transporter 4 (GLUT4) protein expression and AMP‐activated protein kinase (AMPK) mRNA expression, promoting GLUT4 translocation and activating phosphatidylinositol 3‐kinase (PI3K)/protein kinase B (Akt) in IR‐HepG2 cells. Meanwhile, surfactin downregulated protein expression of phosphoenolpyruvate carboxy kinase (PEPCK) and glucose‐6‐phosphatase (G6Pase), further inhibiting hepatic gluconeogenesis. In addition, surfactin played important roles in eliminating reactive oxygen species (ROS), improving mitochondrial dysfunction, and inhibiting proinflammatory mediators. We observed that surfactin promoted glucose consumption, meanwhile increased translocation and protein expression of GLUT4 in Caco‐2 cells. These results confirmed the conclusion in hepatic cells. Furthermore, surfactin supplement decreased body weight, food intake, and fasting blood glucose of type 2 diabetes mellitus (T2DM) mice induced by streptozotocin (STZ)/high‐fat diet (HFD). Our data indicated that surfactin ameliorated insulin resistance and lowered blood glucose in intro and in vivo.
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Affiliation(s)
- Xiaoyu Chen
- College of Food Science and Technology Nanjing Agricultural University Nanjing Jiangsu Province China
| | - Hongyuan Zhao
- College of Food Science and Technology Nanjing Agricultural University Nanjing Jiangsu Province China
| | - Fanqiang Meng
- College of Food Science and Technology Nanjing Agricultural University Nanjing Jiangsu Province China
| | - Libang Zhou
- College of Food Science and Technology Nanjing Agricultural University Nanjing Jiangsu Province China
| | - Xinyi Pang
- College of Food Science and Engineering Nanjing University of Finance and Economics Nanjing Jiangsu Province China
| | - Zhaoxin Lu
- College of Food Science and Technology Nanjing Agricultural University Nanjing Jiangsu Province China
| | - Yingjian Lu
- College of Food Science and Engineering Nanjing University of Finance and Economics Nanjing Jiangsu Province China
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Li Z, Wang W, Zhang H, Liu J, Shi B, Dai W, Liu K, Zhang H. Diversity in Fruit Morphology and Nutritional Composition of Juglans mandshurica Maxim in Northeast China. FRONTIERS IN PLANT SCIENCE 2022; 13:820457. [PMID: 35222478 PMCID: PMC8866725 DOI: 10.3389/fpls.2022.820457] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 01/17/2022] [Indexed: 06/14/2023]
Abstract
Although Manchurian walnut (Juglans mandshurica Maxim) is widely distributed in northeast China, very few studies had been reported on its diversity among different populations. We surveyed 12 J. mandshurica populations in their native habitats across the northeast region of China and profiled 13 fruit morphological traits. We found a large degree of variations for these traits, especially for fruit weight (coefficient of variation, or CV of 22.00%), nut weight (CV of 19.42%), and kernel weight (CV of 19.89%). Statistical analysis showed that a large portion of the total variation can be attributed to within-population variation (66.64%), followed by random error (20.96%). We also comprehensively quantified the nutritional composition including fatty acids, amino acids, vitamins, and micronutrients. Similar to fruit morphological traits, we found large variation for most kernel components, which mostly can be explained by within-population variation. Further correlation analysis revealed the dependence of some morphological and nutritional traits on key geographical and ecological factors such as latitude, accumulated temperature, and day length. For instance, a significant positive correlation was found between fruit dimensions and equivalent latitude and precipitation, indicating that such factors should be considered for breeding. Taken together, our data provided a rich dataset for characterizing the variation among J. mandshurica populations and a foundation for selective breeding.
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Affiliation(s)
- Zhixin Li
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
| | - Weihuai Wang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
| | - Haixiao Zhang
- Jilin Provincial Academy of Forestry Sciences, Changchun, China
| | - Jinhong Liu
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
| | - Baoying Shi
- Wuchang Baolongdian Seed Forest Farm in Heilongjiang, Wuchang, China
| | - Weizhao Dai
- Wuchang Baolongdian Seed Forest Farm in Heilongjiang, Wuchang, China
| | - Kewu Liu
- Heilongjiang Academy of Forestry, Mudanjiang, China
| | - Hanguo Zhang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
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Acevedo‐Juárez S, Guajardo‐Flores D, Heredia‐Olea E, Antunes‐Ricardo M. Bioactive peptides from nuts: A review. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.15543] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Sheccid Acevedo‐Juárez
- Centro de Biotecnología‐FEMSA Escuela de Ingeniería y Ciencias Tecnologico de Monterrey Av. Eugenio Garza Sada 2501 Sur Monterrey NL C.P. 64849 México
| | - Daniel Guajardo‐Flores
- Centro de Biotecnología‐FEMSA Escuela de Ingeniería y Ciencias Tecnologico de Monterrey Av. Eugenio Garza Sada 2501 Sur Monterrey NL C.P. 64849 México
| | - Erick Heredia‐Olea
- Centro de Biotecnología‐FEMSA Escuela de Ingeniería y Ciencias Tecnologico de Monterrey Av. Eugenio Garza Sada 2501 Sur Monterrey NL C.P. 64849 México
| | - Marilena Antunes‐Ricardo
- Centro de Biotecnología‐FEMSA Escuela de Ingeniería y Ciencias Tecnologico de Monterrey Av. Eugenio Garza Sada 2501 Sur Monterrey NL C.P. 64849 México
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Zhou M, Ren G, Zhang B, Ma F, Fan J, Qiu Z. Screening and identification of a novel antidiabetic peptide from collagen hydrolysates of Chinese giant salamander skin: Network pharmacology, inhibition kinetics and protection of IR-HepG2 cells. Food Funct 2022; 13:3329-3342. [DOI: 10.1039/d1fo03527d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, a novel peptide GPPGPA was screened from the collagen hydrolysates of Chinese giant salamander (Andrias davidianus) skin, and anti-diabetes mechanism was predicted by network pharmacology, and inhibitory...
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36
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Kawakami K, Moritani C, Hatanaka T, Tsuboi S. Isolation of the hemeoxygenase-1 inducer from rice-derived peptide. J Clin Biochem Nutr 2022; 71:41-47. [PMID: 35903607 PMCID: PMC9309089 DOI: 10.3164/jcbn.21-125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 11/17/2021] [Indexed: 11/22/2022] Open
Abstract
Bioactive peptides with various health benefits have been reported from rice protein hydrolysates. We previously showed that rice-derived peptides (RP) increased intracellular glutathione levels and induced the expression of γ-glutamylcysteine synthetase, which is regulated by nuclear transcription factor-erythroid 2-related factor 2 (Nrf2). Heme oxygenase-1 (HO-1) is an important Nrf2 downstream antioxidant enzyme that protects against oxidative stress. This study aimed to investigate the protective effects of RP on hydrogen peroxide (H2O2)-induced oxidative stress in human hepatoblastoma cell line HepG2 and identified HO-1 induced peptides from RP. Pretreatment of cells with RP reduced the cytotoxicity caused by H2O2 in a dose-dependent manner. Moreover, RP induced HO-1 expression in a concentration- and time-dependent manner. Next, we attempted to isolate the HO-1 inducer from RP by bioactivity-guided fractionation. Purification of the active peptides using a Sep-Pak C18 cartridge and reversed-phase HPLC, followed by sequence analysis by mass spectrometry, led to the identification of the three peptides. These peptides effectively reduced H2O2-induced oxidative stress. Among them, only P3 (peptide sequence: RSAVLLSH) increased HO-1 protein expression. Additionally, the knockdown of Nrf2 suppressed the induction of HO-1 expression by P3. Our results indicated that P3 identified from RP induced HO-1 by activating the Nrf2 signaling pathway.
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Affiliation(s)
| | | | - Tadashi Hatanaka
- Okayama Prefectural Technology Center for Agriculture, Forestry and Fisheries, Research Institute for Biological Sciences (RIBS)
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Zhou X, Peng X, Pei H, Chen Y, Meng H, Yuan J, Xing H, Wu Y. An overview of walnuts application as a plant-based. Front Endocrinol (Lausanne) 2022; 13:1083707. [PMID: 36589804 PMCID: PMC9797595 DOI: 10.3389/fendo.2022.1083707] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 11/24/2022] [Indexed: 12/23/2022] Open
Abstract
The plant-based refers to plant-based raw materials or products that are available as the source of protein and fat. Utilization and development of walnuts as a plant-based, resulting in a high-quality protein-rich walnut plant-based product: walnut protein powder and walnut peptides. Progress in research on the application of walnuts as a plant-based has been advanced, solving the problem of wasted resources and environmental pollution caused by the fact that walnut residue, a product of walnuts after oil extraction, is often thrown away as waste, or becomes animal feed or compost. This paper reviews and summarizes the research and reports on walnut plant-based at home and abroad, focusing on the application of walnut plant-based in the preparation process (enzymatic and fermentation methods) and the biological activity of the walnut protein and walnut peptide, to provide a theoretical basis for the further processing of walnuts as a walnut plant-based. It can make full use of walnut resources and play its nutritional and health care value, develop and build a series of walnut plant-based products, improve the competitiveness of walnut peptide products, turn them into treasure, and provide more powerful guidance for the development of food and medicine health industry in Yunnan.
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Affiliation(s)
- Xingjian Zhou
- Yunnan Provincial Key Laboratory of Molecular Biology for Sinomedicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
- College of Basic Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Xingyu Peng
- Yunnan Provincial Key Laboratory of Molecular Biology for Sinomedicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
- College of Basic Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Huan Pei
- Yunnan Provincial Key Laboratory of Molecular Biology for Sinomedicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
- College of Basic Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Yuhan Chen
- Yunnan Provincial Key Laboratory of Molecular Biology for Sinomedicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
- College of Basic Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Hui Meng
- Yunnan Provincial Key Laboratory of Molecular Biology for Sinomedicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
- College of Basic Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Jiali Yuan
- Yunnan Provincial Key Laboratory of Molecular Biology for Sinomedicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
- College of Basic Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
| | - Haijing Xing
- Yunnan Provincial Key Laboratory of Molecular Biology for Sinomedicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
- College of Basic Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
- *Correspondence: Haijing Xing, ; Yueying Wu,
| | - Yueying Wu
- Yunnan Provincial Key Laboratory of Molecular Biology for Sinomedicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
- College of Basic Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, China
- *Correspondence: Haijing Xing, ; Yueying Wu,
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Guru A, Issac PK, Saraswathi NT, Seshadri VD, Gabr GA, Arockiaraj J. Deteriorating insulin resistance due to WL15 peptide from cysteine and glycine-rich protein 2 in high glucose-induced rat skeletal muscle L6 cells. Cell Biol Int 2021; 45:1698-1709. [PMID: 33818831 DOI: 10.1002/cbin.11608] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/17/2021] [Accepted: 04/01/2021] [Indexed: 12/19/2022]
Abstract
This study investigates the antioxidant and antidiabetic activity of the WL15 peptide derived from Channa striatus on regulating the antioxidant property in the rat skeletal muscle cell line (L6) and enhancing glucose uptake via glucose metabolism. Increased oxidative stress plays a major role in the development of diabetes and its complications. Strategies are needed to mitigate the oxidative stress that can reduce these pathogenic processes. Our results showed that with treatment with WL15 peptide, the reactive oxygen species significantly decreased in L6 myotubes in a dose-dependent manner, and increased antioxidant enzymes help to prevent the formation of lipid peroxidation in L6 myotubes. The cytotoxicity of WL15 is evaluated in the L6 cells and found to be non-cytotoxic at the tested concentration. Also, for the analysis of glucose uptake activity in L6 cells, the 2-(N-[7-nitrobenz-2-oxa-1,3-diazol-4-yl]amino)-2-deoxy- d -glucose assay was performed in the presence of wortmannin and genistein inhibitors. WL15 demonstrated antidiabetic activities through a dose-dependent increase in glucose uptake (64%) and glycogen storage (7.8 mM). The optimal concentration for the maximum activity was found to be 50 µM. In addition, studies of gene expression in L6 myotubes demonstrated upregulation of antioxidant genes and genes involved in the pathway of insulin signaling. In cell-based assays, WL15 peptide decreased intracellular reactive oxygen species levels and demonstrated insulin mimic activity by enhancing the primary genes involved in the insulin signaling pathway by increased glucose uptake indicating that glucose transporter type 4 (GLUT4) is regulated from the intracellular pool to the plasma membrane.
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Affiliation(s)
- Ajay Guru
- SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamil Nadu, India.,Department of Biotechnology, Faculty of Science and Humanities, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamil Nadu, India
| | - Praveen Kumar Issac
- SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamil Nadu, India
| | - N T Saraswathi
- Molecular Biophysics Lab, School of Chemical and Biotechnology, SASTRA Deemed to be University, Thanjavur, Tamil Nadu, India
| | - Vidya Devanathadesikan Seshadri
- Department of Pharmacology and Toxicology, College of Pharmacy, Prince Sattam bin Abdul Aziz University, Al Kharj, Saudi Arabia
| | - Gamal A Gabr
- Department of Pharmacology and Toxicology, College of Pharmacy, Prince Sattam bin Abdul Aziz University, Al Kharj, Saudi Arabia
| | - Jesu Arockiaraj
- SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamil Nadu, India.,Department of Biotechnology, Faculty of Science and Humanities, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamil Nadu, India
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Cytoprotective Role of Edible Seahorse ( Hippocampus abdominalis)-Derived Peptides in H 2O 2-Induced Oxidative Stress in Human Umbilical Vein Endothelial Cells. Mar Drugs 2021; 19:md19020086. [PMID: 33546257 PMCID: PMC7913330 DOI: 10.3390/md19020086] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 01/29/2021] [Accepted: 01/30/2021] [Indexed: 12/15/2022] Open
Abstract
Oxidative stress-induced endothelial dysfunction is strongly linked to the pathogenesis of cardiovascular diseases. A previous study revealed that seahorse hydrolysates ameliorated oxidative stress-mediated human umbilical vein endothelial cells (HUVECs) injury. However, the responsible compounds have not yet been identified. This study aimed to identify cytoprotective peptides and to investigate the molecular mechanism underlying the cytoprotective role in H2O2-induced HUVECs injury. After purification by gel filtration and HPLC, two peptides were sequenced by liquid chromatography-tandem mass spectrometry as HGSH (436.43 Da) and KGPSW (573.65 Da). The synthesized peptides and their combination (1:1 ratio) showed significant HUVECs protection effect at 100 μg/mL against H2O2-induced oxidative damage via significantly reducing intracellular reactive oxygen species (ROS). Two peptides and their combination treatment resulted in the increased heme oxygenase-1 (HO-1), a phase II detoxifying enzyme, through the activation of nuclear transcription factor-erythroid 2-related factor (Nrf2). Additionally, cell cycle and nuclear staining analysis revealed that two peptides and their combination significantly protected H2O2-induced cell death through antiapoptotic action. Two peptides and their combination treatment led to inhibit the expression of proapoptotic Bax, the release of cytochrome C into the cytosol, the activation of caspase 3 by H2O2 treatment in HUVECs, whereas antiapoptotic Bcl-2 expression was increased with concomitant downregulation of Bax/Bcl-2 ratio. Taken together, these results suggest that seahorse-derived peptides may be a promising agent for oxidative stress-related cardiovascular diseases.
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Luan F, Wang Z, Yang Y, Ji Y, Lv H, Han K, Liu D, Shang X, He X, Zeng N. Juglans mandshurica Maxim.: A Review of Its Traditional Usages, Phytochemical Constituents, and Pharmacological Properties. Front Pharmacol 2021; 11:569800. [PMID: 33551795 PMCID: PMC7858255 DOI: 10.3389/fphar.2020.569800] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 12/04/2020] [Indexed: 12/20/2022] Open
Abstract
Juglans mandshurica Maxim., also known as “Manchurian walnut” (Chinese) and “Onigurumi” (Japanese), is a medicinal plant widely distributed in Western and Central Asia, especially in China. It has been traditionally used to treat cancer, gastric ulcers, diarrhea, dysentery, dermatosis, uterine prolapse, and leukopenia. To date, more than 400 constituents including quinones (e.g. naphthoquinones, anthraquinones, naphthalenones, tetralones), phenolics, flavonoids, triterpenoids, coumarins, lignans, phenylpropanoids, diarylheptanoids, and steroids, were isolated and structurally identified from different plant parts of J. mandshurica. Among them, quinones, phenolics, triterpenoids, and diarylheptanoids, as the major bioactive substances, have been extensively studied and displayed significant bioactivity. Previous studies have demonstrated that J. mandshurica and a few of its active components exhibit a wide range of pharmacologically important properties, such as antitumor, immunomodulatory, anti-inflammatory, neuroprotective, anti-diabetic, antiviral, antimicrobial, and anti-melanogenesis activities. However, many investigations on biological activities were mainly based on crude extracts of this plant, and the major bioactive ingredients responsible for these bioactivities have not been well identified. Further in vitro and in vivo studies on the mechanisms of action of the pure bioactive compounds, and more elaborate toxicity studies as well as clinical studies are needed to ensure safety and effectiveness of the plant for human use. Taken together, the present review will provide some specific useful suggestions guide to further investigations and applications of this plant in the preparation of medicines and functional foods.
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Affiliation(s)
- Fei Luan
- Department of Pharmacology, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Department of Clinical Pharmacy, Shaanxi Provincial Hospital of Tuberculosis Prevention and Treatment, Xi'an, China
| | - Ziyan Wang
- Department of Clinical Pharmacy, Shaanxi Provincial Hospital of Tuberculosis Prevention and Treatment, Xi'an, China
| | - Yan Yang
- Department of Bioengineering, Zhuhai Campus of Zunyi Medical University, Zhuhai, China
| | - Yafei Ji
- Department of Pharmacology, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Haizhen Lv
- Department of Clinical Pharmacy, Shaanxi Provincial Hospital of Tuberculosis Prevention and Treatment, Xi'an, China
| | - Keqing Han
- Department of Clinical Pharmacy, Shaanxi Provincial Hospital of Tuberculosis Prevention and Treatment, Xi'an, China
| | - Daoheng Liu
- Department of Clinical Pharmacy, Shaanxi Provincial Hospital of Tuberculosis Prevention and Treatment, Xi'an, China
| | - Xiaofei Shang
- Key Laboratory of Veterinary Pharmaceutical Development of Ministry of Agriculture, Key Laboratory of New Animal Drug Project, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Xirui He
- Department of Bioengineering, Zhuhai Campus of Zunyi Medical University, Zhuhai, China
| | - Nan Zeng
- Department of Pharmacology, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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