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Weng Z, Chen Y, Liang T, Lin Y, Cao H, Song H, Xiong L, Wang F, Shen X, Xiao J. A review on processing methods and functions of wheat germ-derived bioactive peptides. Crit Rev Food Sci Nutr 2021; 63:5577-5593. [PMID: 34964419 DOI: 10.1080/10408398.2021.2021139] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Wheat germ protein is a potential resource to produce bioactive peptides. As a cheap, safe, and healthy nutritional factor, wheat germ-derived bioactive peptides (WGBPs) provide benefits and great potential for biomedical applications. The objective of this review is to reveal the current research status of WGBPs, including their preparation methods and biological functions, such as antibacterial, anti-tumor, immune regulation, antioxidant, and anti-inflammatory properties, etc. We also reviewed the information in terms of the preventive ability of WGBPs to treat serious infectious diseases, to offer their reference to further research and application. Opinions on future research directions are also discussed. Through the review of previous research, we find that there are still some scientific issues in the basic research and industrialization process of WGBPs that deserve further exploration. Firstly, based on current complex enzymolysis, the preparation and production of WGBPs need to be combined with other advanced technology to achieve efficient and large-scale production. Secondly, studies on the bioavailability, biosafety, and mechanism against different diseases of WGBPs need to be carried out in different in vitro and in vivo models. More human experimental evidence is also required to support its industrial application as a functional food and nutritional supplement.HighlightsThe purification and identification of wheat germ-derived bioactive peptides.The main biological activities and potential mechanisms of wheat germ hydrolysates/peptides.Possible absorption and transport pathways of wheat germ hydrolysate/peptide.Wheat germ peptide shows a variety of health benefits according to its amino acid sequence.Current food applications and future perspectives of wheat germ protein hydrolysates/peptide.
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Affiliation(s)
- Zebin Weng
- School of Traditional Chinese Medicine & School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yuanrong Chen
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety/Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, Nanjing, China
| | - Tingting Liang
- Changshu Hospital, Affiliated to Nanjing University of Chinese Medicine, Changshu, China
| | - Yajuan Lin
- School of Traditional Chinese Medicine & School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Hui Cao
- Department of Analytical and Food Chemistry, Faculty of Sciences, Universidade de Vigo, Nutrition and Bromatology Group, Ourense, Spain
| | - Haizhao Song
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety/Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, Nanjing, China
| | - Ling Xiong
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety/Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, Nanjing, China
| | - Fang Wang
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety/Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, Nanjing, China
| | - Xinchun Shen
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety/Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, Nanjing, China
| | - Jianbo Xiao
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety/Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, Nanjing, China
- Department of Analytical and Food Chemistry, Faculty of Sciences, Universidade de Vigo, Nutrition and Bromatology Group, Ourense, Spain
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Younis W, Schini-Kerth VB, Junior AG, Nocchi SR, Silva DB, Roberts RE. Endothelium-independent vasorelaxant effect of Asphodelus tenuifolius Cav. via inhibition of myosin light chain kinase activity in the porcine coronary artery. JOURNAL OF ETHNOPHARMACOLOGY 2021; 269:113693. [PMID: 33326818 DOI: 10.1016/j.jep.2020.113693] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 04/11/2020] [Accepted: 12/09/2020] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Asphodelus tenuifolius Cav. (Asphodelaceae), a wild, terrestrial, annual stemless herb, is widely used in traditional medicine for the treatment of hypertension, diabetes, atherosclerosis and circulatory problems. A previous research study from our laboratory revealed that A. tenuifolius has beneficial effects in reducing blood pressure and improves aortic endothelial dysfunction in chronically glucose fed rats. Despite the fact that A. tenuifolius reduces blood pressure and improves endothelial function in vivo, there are no detailed studies about its possible mechanism of action. AIM OF THE STUDY This study was designed to provide pharmacological basis and mechanism of action for the traditional use of A. tenuifolius in hypertension and circulatory problems. We explored the vasorelaxant effect of A. tenuifolius and its underlying vasorelaxation mechanism in porcine coronary artery rings. MATERIALS AND METHODS Aqueous methanolic crude extract of A. tenuifolius was prepared by maceration process and then activity guided fractionation was carried out by using different polarity based solvents. Phytochemical studies were carried out using LC-DAD-MS. Segments of porcine distal coronary artery were set up in a wire myograph for isometric force measurements. Extract/fractions of A. tenuifolius seeds were tested for vasodilator activity by measurement of changes in tone after pre-contraction with the thromboxane mimetic U46619 in the presence or absence of inhibitors of intracellular signaling cascades. RESULTS Crude extract/fractions of A. tenuifolius produced dose dependent endothelium independent vasorelaxant response in coronary rings, whereas, the butanol fraction of A. tenuifolius (BS-AT) produced the largest relaxation response with 100% relaxation at 1 mg/ml, therefore the mechanism of relaxation of this fraction was determined. The relaxation to BS-AT was unaffected by removal of the endothelium, pre-contraction with KCl, or the presence of the non-selective potassium channel blocker tetraethylammonium, indicating that the relaxation was endothelium-independent, and does not involve activation of potassium channels. BS-AT (1 mg/ml) inhibited the contractile response to calcium,the L-type calcium channel activator BAY K8664,and ionomycin, indicating that it inhibits calcium-induced contractions. The relaxation response to BS-AT was attenuated in the absence of extracellular calcium. However, relaxations to BS-AT were also reduced after deletion of calcium from intracellular stores with cyclopiazonic acid. Incubation with 1 mg/ml BS-AT also inhibited phosphorylation of myosin light chains in homogenates of coronary artery. CONCLUSION The butanol extract of Asphodelus tenuifolius produces a large endothelium-independent relaxation of the porcine coronary artery through inhibition of calcium-induced contractions. The effect appears to be downstream of calcium influx, possibly through inhibition of myosin light chain kinase. This study supports previous studies demonstrating that A. tenuifolius reduces blood pressure. Future studies will aim to determine the active compounds underlying this response.
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Affiliation(s)
- Waqas Younis
- Laboratory of Cardiovascular Research and Integrative Pharmacology, College of Pharmacy, University of Sargodha, Sargodha, 40100, Pakistan; Pharmacology Research Group, School of Life Sciences, University of Nottingham Medical School, Queen's Medical Centre, Nottingham, NG7 2UH, United Kingdom
| | - V B Schini-Kerth
- UMR 1260 INSERM Nanomédecine Régénérative Faculté de Pharmacie, Université de Strasbourg, Illkirch, France
| | - Arquimedes Gasparotto Junior
- Laboratory of Electrophysiology and Cardiovascular Pharmacology, Federal University of Grande Dourados (UFGD), P.O. Box 533, 79.804-970, Dourados, MS, Brazil
| | - Samara Requena Nocchi
- Laboratório de Produtos Naturais e Espectrometria de Massas (LaPNEM), Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição (FACFAN), Universidade Federal do Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Denise Brentan Silva
- Laboratório de Produtos Naturais e Espectrometria de Massas (LaPNEM), Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição (FACFAN), Universidade Federal do Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Richard E Roberts
- Pharmacology Research Group, School of Life Sciences, University of Nottingham Medical School, Queen's Medical Centre, Nottingham, NG7 2UH, United Kingdom.
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Miura M, Handoh T, Taguchi Y, Hasegawa T, Takahashi Y, Morita N, Matsumoto A, Shindoh C, Sato H. Transient Elevation of Glucose Increases Arrhythmia Susceptibility in Non-Diabetic Rat Trabeculae With Non-Uniform Contraction. Circ J 2020; 84:551-558. [PMID: 32092718 DOI: 10.1253/circj.cj-19-0715] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND In non-diabetic patients with acute coronary syndrome, stress hyperglycemia occasionally occurs and is related to their mortality. Whether transient elevation of glucose affects arrhythmia susceptibility in non-diabetic hearts with non-uniform contraction was examined.Methods and Results:Force, intracellular Ca2+([Ca2+]i), and membrane potential were measured in trabeculae from rat hearts. Non-uniform contraction was produced by a jet of paralyzing solution. Ca2+waves and arrhythmias were induced by electrical stimulation (2.0 mmol/L [Ca2+]o). The activity of Ca2+/calmodulin-dependent protein kinaseII (CaMKII) was measured. An elevation of glucose from 150 to 400 mg/dL increased the velocity of Ca2+waves and the number of spontaneous action potentials triggered by electrical stimulation. Besides, the elevation of glucose increased the CaMKII activity. In the presence of 1 μmol/L KN-93, the elevation of glucose did not increase the velocity of Ca2+waves and the number of triggered action potentials. In addition, in the presence of 1 μmol/L autocamtide-2 related inhibitory peptide or 50 μmol/L diazo-5-oxonorleucine, the elevation of glucose did not increase the number of triggered action potentials. Furthermore, the elevation of glucose by adding L-glucose did not increase their number. CONCLUSIONS In non-diabetic hearts with non-uniform contraction, transient elevation of glucose increases the velocity of Ca2+waves by activating CaMKII,probably through glycosylation with O-linked β-N-acetylglucosamine, thereby increasing arrhythmia susceptibility.
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Affiliation(s)
- Masahito Miura
- Department of Clinical Physiology, Health Science, Tohoku University Graduate School of Medicine
| | - Tetsuya Handoh
- Department of Clinical Physiology, Health Science, Tohoku University Graduate School of Medicine
| | - Yuhto Taguchi
- Department of Clinical Physiology, Health Science, Tohoku University Graduate School of Medicine
| | - Taiki Hasegawa
- Department of Clinical Physiology, Health Science, Tohoku University Graduate School of Medicine
| | - Yui Takahashi
- Department of Clinical Physiology, Health Science, Tohoku University Graduate School of Medicine
| | - Natsuki Morita
- Department of Clinical Physiology, Health Science, Tohoku University Graduate School of Medicine
| | - Ayana Matsumoto
- Department of Clinical Physiology, Health Science, Tohoku University Graduate School of Medicine
| | - Chiyohiko Shindoh
- Department of Clinical Physiology, Health Science, Tohoku University Graduate School of Medicine
| | - Haruka Sato
- Department of Clinical Physiology, Health Science, Tohoku University Graduate School of Medicine
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Xu S, Shen Y, Xu J, Qi G, Chen G, Wang W, Sun X, Li Y. Antioxidant and anticancer effects in human hepatocarcinoma (HepG2) cells of papain-hydrolyzed sorghum kafirin hydrolysates. J Funct Foods 2019. [DOI: 10.1016/j.jff.2019.05.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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Nwachukwu ID, Alashi AM, Zahradka PC, Aluko RE. Transport, Bioavailability, Safety, and Calmodulin-Dependent-Phosphodiesterase-Inhibitory Properties of Flaxseed-Derived Bioactive Peptides. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:1429-1436. [PMID: 30628451 DOI: 10.1021/acs.jafc.8b06299] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The aim of this work was to determine bioavailability and in vivo calmodulin-dependent-phosphodiesterase (CaMPDE)-inhibitory activity of six flaxseed-protein-derived peptides (AGA, AKLMS, QIAK, RWIQ, QQAKQ, and KQLSTGC) after oral administration to Wistar rats. Initial experiments tested the cytotoxicity and cellular-transport potentials of the peptides using Caco-2 cells. The cytotoxicity assay indicated that none of the six peptides had an adverse effect on the proliferation and viability of the Caco-2 cells, whereas the transport assay confirmed peptide translocation across the cell membrane. However, only two of the peptides (AGA and RWIQ) were detected in the rat serum up to 90 min postgavage, with traces of RWIQ persisting in serum 1 week after oral gavage. The six peptides inhibited plasma activity of CaMPDE with AGA (34.63%), QIAK (36.66%), and KQLSTGC (34.21%) being the most effective 30 min after gavage. In contrast, only AGA maintained significant plasma-CaMPDE-activity inhibition (44.35%) after 60 min.
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Affiliation(s)
- Ifeanyi D Nwachukwu
- Department of Food and Human Nutritional Sciences , University of Manitoba , 190 Dysart Road , Winnipeg , Manitoba R3T 2N2 , Canada
- Canadian Centre for Agri-Food Research in Health and Medicine , St. Boniface Hospital Albrechtsen Research Centre , 351 Tache Avenue , Winnipeg , Manitoba R2H 2A6 , Canada
| | - Adeola M Alashi
- Department of Food and Human Nutritional Sciences , University of Manitoba , 190 Dysart Road , Winnipeg , Manitoba R3T 2N2 , Canada
| | - Peter C Zahradka
- Department of Food and Human Nutritional Sciences , University of Manitoba , 190 Dysart Road , Winnipeg , Manitoba R3T 2N2 , Canada
- Department of Physiology and Pathophysiology , University of Manitoba , 745 Bannatyne Avenue , Winnipeg , Manitoba R3E 0J9 , Canada
- Canadian Centre for Agri-Food Research in Health and Medicine , St. Boniface Hospital Albrechtsen Research Centre , 351 Tache Avenue , Winnipeg , Manitoba R2H 2A6 , Canada
| | - Rotimi E Aluko
- Department of Food and Human Nutritional Sciences , University of Manitoba , 190 Dysart Road , Winnipeg , Manitoba R3T 2N2 , Canada
- Richardson Centre for Functional Foods and Nutraceuticals , University of Manitoba , 196 Innovation Drive , Winnipeg , Manitoba R3T 2E1 , Canada
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