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Pinheiro Júnior JEG, Sosa PM, das Neves BHS, Vassallo DV, Peçanha FM, Miguel-Castro M, Mello-Carpes PB, Wiggers GA. Egg White Hydrolysate Mitigates Cadmium-induced Neurological Disorders and Oxidative Damage. Neurochem Res 2024; 49:1603-1615. [PMID: 38353895 PMCID: PMC11106117 DOI: 10.1007/s11064-024-04110-2] [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: 05/03/2023] [Revised: 01/14/2024] [Accepted: 01/18/2024] [Indexed: 05/21/2024]
Abstract
We aimed to investigate whether the consumption of Egg White Hydrolysate (EWH) acts on nervous system disorders induced by exposure to Cadmium (Cd) in rats. Male Wistar rats were divided into (a) Control (Ct): H2O by gavage for 28 days + H2O (i.p. - 15th - 28th day); (b) Cadmium (Cd): H2O by gavage + CdCl2 - 1 mg/kg/day (i.p. - 15th - 28th day); (c) EWH 14d: EWH 1 g/kg/day by gavage for 14 days + H2O (i.p.- 15th - 28th day); (d) Cd + EWH cotreatment (Cd + EWHco): CdCl2 + EWH for 14 days; (e) EWH 28d: EWH for 28 days; (f) EWHpre + Cd: EWH (1st - 28th day) + CdCl2 (15th - 28th day). At the beginning and the end of treatment, neuromotor performance (Neurological Deficit Scale); motor function (Rota-Rod test); ability to move and explore (Open Field test); thermal sensitivity (Hot Plate test); and state of anxiety (Elevated Maze test) were tested. The antioxidant status in the cerebral cortex and the striatum were biochemically analyzed. Cd induces anxiety, and neuromotor, and thermal sensitivity deficits. EWH consumption prevented anxiety, neuromotor deficits, and alterations in thermal sensitivity, avoiding neuromotor deficits both when the administration was performed before or during Cd exposure. Both modes of administration reduced the levels of reactive species, and the lipid peroxidation increased by Cd and improved the striatum's antioxidant capacity. Pretreatment proved to be beneficial in preventing the reduction of SOD activity in the cortex. EWH could be used as a functional food with antioxidant properties capable of preventing neurological damage induced by Cd.
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Affiliation(s)
- José Eudes Gomes Pinheiro Júnior
- Graduate Program in Biochemistry and Multicentric Graduate Program in Physiological Sciences, Universidade Federal do Pampa, BR 472 - km 592, Uruguaiana, 97500-970, Rio Grande do Sul, Brazil
| | - Priscila Marques Sosa
- Graduate Program in Biochemistry and Multicentric Graduate Program in Physiological Sciences, Universidade Federal do Pampa, BR 472 - km 592, Uruguaiana, 97500-970, Rio Grande do Sul, Brazil
| | - Ben-Hur Souto das Neves
- Graduate Program in Biochemistry and Multicentric Graduate Program in Physiological Sciences, Universidade Federal do Pampa, BR 472 - km 592, Uruguaiana, 97500-970, Rio Grande do Sul, Brazil
| | - Dalton Valentim Vassallo
- Departments of Physiological Sciences, Universidade Federal do Espírito Santo and School of Medicine of Santa Casa de Misericórdia (EMESCAM), Av. Marechal Campos 1468, Vitória, 29040-090, Espírito Santo, Brazil
| | - Franck Maciel Peçanha
- Graduate Program in Biochemistry and Multicentric Graduate Program in Physiological Sciences, Universidade Federal do Pampa, BR 472 - km 592, Uruguaiana, 97500-970, Rio Grande do Sul, Brazil
| | - Marta Miguel-Castro
- Bioactivity and Food Analysis Laboratory, Instituto de Investigación en Ciencias de la Alimentación, Nicolás Cabrera, 9, Campus Universitario de Cantoblanco, Madrid, 28049, Spain.
| | - Pâmela Billig Mello-Carpes
- Graduate Program in Biochemistry and Multicentric Graduate Program in Physiological Sciences, Universidade Federal do Pampa, BR 472 - km 592, Uruguaiana, 97500-970, Rio Grande do Sul, Brazil
| | - Giulia Alessandra Wiggers
- Graduate Program in Biochemistry and Multicentric Graduate Program in Physiological Sciences, Universidade Federal do Pampa, BR 472 - km 592, Uruguaiana, 97500-970, Rio Grande do Sul, Brazil
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2
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ROS Suppression by Egg White Hydrolysate in DOCA-Salt Rats—An Alternative Tool against Vascular Dysfunction in Severe Hypertension. Antioxidants (Basel) 2022; 11:antiox11091713. [PMID: 36139783 PMCID: PMC9495903 DOI: 10.3390/antiox11091713] [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: 07/27/2022] [Revised: 08/22/2022] [Accepted: 08/27/2022] [Indexed: 11/17/2022] Open
Abstract
This study aimed to evaluate the potential for lowering blood pressure and beneficial effects on mesenteric resistance arteries (MRA) and conductance vessels (aorta) produced by dietary supplementation of an egg white hydrolysate (EWH) in rats with severe hypertension induced by deoxycorticosterone plus salt treatment (DOCA-salt), as well as the underlying mechanisms involved. The DOCA-salt model presented higher blood pressure, which was significantly reduced by EWH. The impaired acetylcholine-induced relaxation and eNOS expression observed in MRA and aorta from DOCA-salt rats was ameliorated by EWH. This effect on vessels (MRA and aorta) was related to the antioxidant effect of EWH, since hydrolysate intake prevented the NF-κB/TNFα inflammatory pathway and NADPH oxidase-induced reactive oxygen species (ROS) generation, as well as the mitochondrial source of ROS in MRA. At the plasma level, EWH blocked the higher ROS and MDA generation by DOCA-salt treatment, without altering the antioxidant marker. In conclusion, EWH demonstrated an antihypertensive effect in a model of severe hypertension. This effect could be related to its endothelium-dependent vasodilator properties mediated by an ameliorated vessel’s redox imbalance and inflammatory state.
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Nolasco E, Naldrett M, Alvarez S, Johnson PE, Majumder K. Bioactivity of Cooked Standard and Enriched Whole Eggs from White Leghorn and Rhode Island Red in Exhibiting In-Vitro Antioxidant and ACE-Inhibitory Effects. Nutrients 2021; 13:4232. [PMID: 34959785 PMCID: PMC8705232 DOI: 10.3390/nu13124232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/23/2021] [Accepted: 11/24/2021] [Indexed: 11/16/2022] Open
Abstract
Hen breed, diet enrichment, cooking methods, and gastrointestinal (GI) digestion modulates the bioaccessibility of the bioactive compounds in eggs, but their synergistic role in modulating bioactivity is still unclear. The present study evaluates the effect of hen breed, diet enrichment, and GI digestion on the cooked whole egg-derived peptides in-vitro antioxidant and antihypertensive activities. Standard and enriched whole eggs from White Leghorn (WLH) and Rhode Island Red (RIR) hens were boiled or fried and subjected to GI digestion. Antioxidant activity was measured through oxygen radical absorbance capacity (ORAC) and gastrointestinal epithelial cell-based assays, and the antihypertensive capacity by in-vitro Angiotensin-I Converting Enzyme (ACE) inhibition assay. WLH fried standard egg hydrolysate showed a high ORAC antioxidant activity but failed to show any significant antioxidant effect in the cell-based assay. No significant differences were observed in the antihypertensive activity, although enriched samples tended to have a higher ACE-inhibitory capacity. The peptide profile explained the antioxidant capacities based on antioxidant structural requirements from different peptide fractions, while previously reported antihypertensive peptides were found in all samples. The study validates the importance of physiologically relevant models and requires future studies to confirm mechanisms that yield bioactive compounds in whole egg hydrolysates.
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Affiliation(s)
- Emerson Nolasco
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE 68588-6205, USA; (E.N.); (P.E.J.)
| | - Mike Naldrett
- Proteomics and Metabolomics Facility, Nebraska Center for Biotechnology, University of Nebraska-Lincoln, Lincoln, NE 68588-0665, USA; (M.N.); (S.A.)
| | - Sophie Alvarez
- Proteomics and Metabolomics Facility, Nebraska Center for Biotechnology, University of Nebraska-Lincoln, Lincoln, NE 68588-0665, USA; (M.N.); (S.A.)
| | - Philip E. Johnson
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE 68588-6205, USA; (E.N.); (P.E.J.)
| | - Kaustav Majumder
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE 68588-6205, USA; (E.N.); (P.E.J.)
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Chen R, Miao Y, Hao X, Gao B, Ma M, Zhang JZ, Wang R, Li S, He X, Zhang L. Investigation on the characteristics and mechanisms of ACE inhibitory peptides by a thorough analysis of all 8000 tripeptides via binding free energy calculation. Food Sci Nutr 2021; 9:2943-2953. [PMID: 34136162 PMCID: PMC8194939 DOI: 10.1002/fsn3.2253] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 03/08/2021] [Accepted: 03/11/2021] [Indexed: 12/17/2022] Open
Abstract
Food-derived angiotensin I-converting enzyme (ACE) inhibitory peptides represent a potential source of new antihypertensive. However, their characteristics and binding mechanisms were not well understood. In this study, novel energy calculation and experimentation were combined to elucidate the characteristics and mechanisms of ACE inhibitory tripeptides. ACE inhibitory activity of all 8,000 tripeptides was investigated by in silico experiments. IC50 values of the five top-rated tripeptides ranged from 5.86 to 21.84 μM. Five hundred top-ranked tripeptides were chosen for detailed structure-activity analysis, and a significant preference for aromatic amino acids at both C- and N-terminus was found. By binding free energy analysis of nine representative tripeptides via MM/GBSA, electrostatic energy was found to be the leading energy that contributed to the binding of ACE with its high affinity tripeptides. Besides, S355, V380, and V518, three residues positioned around the classical binding pockets of ACE, also played a key role in ACE's binding. Therefore, for tripeptides, their binding pockets in ACE were redefined. In conclusion, the characteristics of ACE inhibitory peptides were more deeply illustrated by the thorough analysis of all tripeptides. The energy analysis allows a better understanding of the binding mechanisms of ACE inhibitory peptides, which could be used to redesign the ACE inhibitors for stronger inhibitory activity.
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Affiliation(s)
- Ruiyao Chen
- State Key Laboratory of Bioreactor EngineeringSchool of BiotechnologyEast China University of Science and TechnologyShanghaiChina
| | - Yulu Miao
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug DevelopmentSchool of Chemistry and Molecular EngineeringEast China Normal UniversityShanghaiChina
| | - Xuan Hao
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug DevelopmentSchool of Chemistry and Molecular EngineeringEast China Normal UniversityShanghaiChina
| | - Bei Gao
- State Key Laboratory of Bioreactor EngineeringSchool of BiotechnologyEast China University of Science and TechnologyShanghaiChina
| | - Mingzhe Ma
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug DevelopmentSchool of Chemistry and Molecular EngineeringEast China Normal UniversityShanghaiChina
| | - John Z.H. Zhang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug DevelopmentSchool of Chemistry and Molecular EngineeringEast China Normal UniversityShanghaiChina
- NYU‐ECNU Center for Computational Chemistry at NYU ShanghaiShanghaiChina
- Department of ChemistryNew York UniversityNew YorkNYUSA
| | - Rui Wang
- College of Food Science and Light IndustryNanjing Tech UniversityNanjingChina
- State Key Laboratory of Materials‐Oriented Chemical EngineeringNanjing Tech UniversityNanjingChina
| | - Sha Li
- College of Food Science and Light IndustryNanjing Tech UniversityNanjingChina
- State Key Laboratory of Materials‐Oriented Chemical EngineeringNanjing Tech UniversityNanjingChina
| | - Xiao He
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug DevelopmentSchool of Chemistry and Molecular EngineeringEast China Normal UniversityShanghaiChina
- NYU‐ECNU Center for Computational Chemistry at NYU ShanghaiShanghaiChina
| | - Lujia Zhang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug DevelopmentSchool of Chemistry and Molecular EngineeringEast China Normal UniversityShanghaiChina
- NYU‐ECNU Center for Computational Chemistry at NYU ShanghaiShanghaiChina
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Yang G, Qin S, Li W. Purification and characterization of a novel angiotensin I-converting enzyme-inhibitory peptide derived from Alaska pollack skins. J Food Sci 2021; 86:2457-2467. [PMID: 34056723 DOI: 10.1111/1750-3841.15754] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 03/13/2021] [Accepted: 04/01/2021] [Indexed: 11/28/2022]
Abstract
Hydrolysates containing angiotensin I-converting enzyme (ACE)-inhibitory peptide were prepared from protein of Alaska pollack skins using alcalase and trypsin. The protein hydrolysate was separated by ultrafiltration, Sephadex G-25 gel filtration chromatography and reversed phase high-performance liquid chromatography (HPLC), from which a novel purified peptide was obtained. Both random coil structure and β-sheet in the purified peptide were revealed in Fourier transform infrared spectrum. The amino sequence of the purified peptide was identified as GPLGVP, VLYPVK, VFLENVLR, and FEEF by HPLC-Q-TOF-MS (HPLC-quadrupole time-of-flight mass spectrometry). The peptide GPLGVP whose molecular weight was 538.31 Da showed the highest ACE inhibitory activity (IC50 = 105.8 µM). The purified peptide featured a noncompetitive inhibition kinetic mechanism was shown in the Lineweaver-Burk plots and was susceptible to enzymes as indicated in the studies on stability of gastrointestinal proteases. Moreover, the peptide GPLGVP can combine ACE catalytic pocket through hydrogen bonds and other forces with high binding power as disclosed in molecular docking simulation, which provides the inhibitory effect of GPLGVP on ACE.
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Affiliation(s)
- Guilan Yang
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, PR China.,School of Pharmacy, Binzhou Medical University, Yantai, PR China
| | - Song Qin
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, PR China.,Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, PR China
| | - Wenjun Li
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, PR China.,Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, PR China
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Miguel M, Vassallo DV, Wiggers GA. Bioactive Peptides and Hydrolysates from Egg Proteins as a New Tool for Protection Against Cardiovascular Problems. Curr Pharm Des 2021; 26:3676-3683. [PMID: 32216734 DOI: 10.2174/1381612826666200327181458] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 03/12/2020] [Indexed: 01/21/2023]
Abstract
The aim of the present work is to review the potential beneficial effects of dietary supplementation with bioactive egg protein hydrolysates or peptides on cardiometabolic changes associated with oxidative stress. The development of nutritionally improved food products designed to address specific health concerns is of particular interest because many bioactive food compounds can be potentially useful in various physiological functions such as for reducing oxidative stress. The results presented suggest that egg hydrolysates or derived peptides could be included in the diet to prevent and/or reduce some cardiometabolic complications associated with oxidative stress-related diseases.
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Affiliation(s)
- Marta Miguel
- Bioactivity and Food Analysis Laboratory, Instituto de Investigación em Ciencias de la Alimentación, Nicolás Cabrera, 9, Campus Universitario de Cantoblanco, Madrid, Spain
| | - Dalton V Vassallo
- Department of Physiological Sciences, Universidade Federal do Espirito Santo and School of Medicine of Santa Casa de Misericordia (EMESCAM), Av. Marechal Campos 1468, Zip Code: 29040-090, Vitoria, Espirito Santo, Brazil
| | - Giulia A Wiggers
- Cardiovascular Physiology Research Group, Federal University of Pampa, BR 472 - Km 592 - PO box 118. Zip Code: 97500-970, Uruguaiana, Rio Grande do Sul, Brazil
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Escobar AG, Rizzetti DA, Piagette JT, Peçanha FM, Vassallo DV, Miguel M, Wiggers GA. Antioxidant Properties of Egg White Hydrolysate Prevent Mercury-Induced Vascular Damage in Resistance Arteries. Front Physiol 2020; 11:595767. [PMID: 33329045 PMCID: PMC7714919 DOI: 10.3389/fphys.2020.595767] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 11/02/2020] [Indexed: 11/28/2022] Open
Abstract
Aim: We investigated the antioxidant protective power of egg white hydrolysate (EWH) against the vascular damage induced by mercury chloride (HgCl2) exposure in resistance arteries. Methods: Male Wistar rats received for 60 days: (I) intramuscular injections (i.m.) of saline and tap water by gavage - Untreated group; (II) 4.6 μg/kg of HgCl2 i.m. for the first dose and subsequent doses of 0.07 μg/kg/day and tap water by gavage - HgCl2 group; (III) saline i.m. and 1 g/kg/day of EWH by gavage - EWH group, or (IV) the combination of the HgCl2 i.m. and EWH by gavage - EWH + HgCl2 group. Blood pressure (BP) was indirectly measured and dose-response curves to acetylcholine (ACh), sodium nitroprusside (SNP), and noradrenaline (NE) were assessed in mesenteric resistance arteries (MRA), as in situ production of superoxide anion, nitric oxide (NO) release, vascular reactive oxygen species (ROS), lipid peroxidation, and antioxidant status. Results: Egg white hydrolysate prevented the elevation in BP and the vascular dysfunction after HgCl2 exposure; restored the NO-mediated endothelial modulation and inhibited the oxidative stress and inflammatory pathways induced by HgCl2. Conclusion: Egg white hydrolysate seems to be a useful functional food to prevent HgCl2-induced vascular toxic effects in MRA.
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Affiliation(s)
- Alyne Goulart Escobar
- Graduate Program in Biochemistry and Multicentric Graduate Program in Physiological Sciences, Universidade Federal do Pampa, Uruguaiana, Brazil
| | - Danize Aparecida Rizzetti
- Graduate Program in Biochemistry and Multicentric Graduate Program in Physiological Sciences, Universidade Federal do Pampa, Uruguaiana, Brazil
| | - Janaina Trindade Piagette
- Graduate Program in Biochemistry and Multicentric Graduate Program in Physiological Sciences, Universidade Federal do Pampa, Uruguaiana, Brazil
| | - Franck Maciel Peçanha
- Graduate Program in Biochemistry and Multicentric Graduate Program in Physiological Sciences, Universidade Federal do Pampa, Uruguaiana, Brazil
| | - Dalton Valentim Vassallo
- Department of Physiological Sciences, Universidade Federal do Espírito Santo and School of Medicine of Santa Casa de Misericórdia (EMESCAM), Vitória, Brazil
| | - Marta Miguel
- Bioactivity and Food Analysis Department, Instituto de Investigación en Ciencias de la Alimentación, Campus Universitario de Cantoblanco, Madrid, Spain
| | - Giulia Alessandra Wiggers
- Graduate Program in Biochemistry and Multicentric Graduate Program in Physiological Sciences, Universidade Federal do Pampa, Uruguaiana, Brazil
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Garcés-Rimón M, González C, Hernanz R, Herradón E, Martín A, Palacios R, Alonso MJ, Uranga JA, López-Miranda V, Miguel M. Egg white hydrolysates improve vascular damage in obese Zucker rats by its antioxidant properties. J Food Biochem 2019; 43:e13062. [PMID: 31571257 DOI: 10.1111/jfbc.13062] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 09/04/2019] [Accepted: 09/09/2019] [Indexed: 12/13/2022]
Abstract
Metabolic Syndrome (MS) is related to increased risk of early death due to cardiovascular complications, among others. Dietary intervention has been suggested as the safest and most cost-effective alternative for treatment of those alterations in patients with MS. The aim of this study was to investigate the effects of different egg white hydrolysates (HEW1 and HEW2) in obese Zucker rats, focus on the development of cardiovascular complications. Blood pressure, heart rate, basal cardiac function and vascular reactivity in aorta and mesenteric resistance arteries were evaluated. Reactive oxygen species production by dihydroethidium-emitted fluorescence, NOX-1 mRNA levels by qRT-PCR, angiotensin-converting enzyme activity by fluorimetry and kidney histopathology were also analysed. Both hydrolysates improve the endothelial dysfunction occurring in resistance arteries. Additionally, HEW2 reduced vascular oxidative stress. PRACTICAL APPLICATIONS: Egg white is a good source of bioactive peptides, some of them with high antioxidant activity. They may be used as functional foods ingredients and could serve as an alternative therapeutic option to decrease some Metabolic Syndrome-related complications. This study suggests that these hydrolysates could be an interesting non-pharmacological tool to control cardiovascular complications related to Metabolic Syndrome.
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Affiliation(s)
- Marta Garcés-Rimón
- Instituto de Investigación en Ciencias de Alimentación (CIAL, CSIC-UAM), Madrid, Spain.,Grupo de Investigación en Nutrición y Farmacología (URJC), Unidad Asociada I+D+i al Instituto de Investigación en Ciencias de la Alimentación (CSIC), Madrid, Spain
| | - Cristina González
- Grupo de Investigación en Nutrición y Farmacología (URJC), Unidad Asociada I+D+i al Instituto de Investigación en Ciencias de la Alimentación (CSIC), Madrid, Spain.,Dpto, de Ciencias Básicas de la Salud, Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos, Alcorcón, Madrid, Spain
| | - Raquel Hernanz
- Dpto, de Ciencias Básicas de la Salud, Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos, Alcorcón, Madrid, Spain
| | - Esperanza Herradón
- Grupo de Investigación en Nutrición y Farmacología (URJC), Unidad Asociada I+D+i al Instituto de Investigación en Ciencias de la Alimentación (CSIC), Madrid, Spain.,Dpto, de Ciencias Básicas de la Salud, Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos, Alcorcón, Madrid, Spain
| | - Angela Martín
- Dpto, de Ciencias Básicas de la Salud, Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos, Alcorcón, Madrid, Spain
| | - Roberto Palacios
- Dpto, de Ciencias Básicas de la Salud, Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos, Alcorcón, Madrid, Spain
| | - María Jesús Alonso
- Dpto, de Ciencias Básicas de la Salud, Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos, Alcorcón, Madrid, Spain
| | - José Antonio Uranga
- Grupo de Investigación en Nutrición y Farmacología (URJC), Unidad Asociada I+D+i al Instituto de Investigación en Ciencias de la Alimentación (CSIC), Madrid, Spain.,Dpto, de Ciencias Básicas de la Salud, Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos, Alcorcón, Madrid, Spain
| | - Visitación López-Miranda
- Grupo de Investigación en Nutrición y Farmacología (URJC), Unidad Asociada I+D+i al Instituto de Investigación en Ciencias de la Alimentación (CSIC), Madrid, Spain.,Dpto, de Ciencias Básicas de la Salud, Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos, Alcorcón, Madrid, Spain
| | - Marta Miguel
- Instituto de Investigación en Ciencias de Alimentación (CIAL, CSIC-UAM), Madrid, Spain.,Grupo de Investigación en Nutrición y Farmacología (URJC), Unidad Asociada I+D+i al Instituto de Investigación en Ciencias de la Alimentación (CSIC), Madrid, Spain
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Lucey AJ, Heneghan C, Manning E, Kroon PA, Kiely ME. Effect of an egg ovalbumin-derived protein hydrolysate on blood pressure and cardiovascular risk in adults with a mildly elevated blood pressure: a randomized placebo-controlled crossover trial. Eur J Nutr 2018; 58:2823-2833. [PMID: 30284065 DOI: 10.1007/s00394-018-1832-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 09/21/2018] [Indexed: 02/07/2023]
Abstract
PURPOSE While animal and in vitro data demonstrate vasodilatory effects of egg white-derived peptides, human studies are lacking. We investigated for the first time the effects of an egg ovalbumin-derived protein hydrolysate on blood pressure (BP) and cardiovascular risk. METHODS A double-blind, placebo-controlled randomized crossover trial was implemented in 75 adults aged 50-70 years with systolic BP (130-≤ 150 mmHg). Participants were randomized to an egg ovalbumin-derived protein hydrolysate (3 g/day) or placebo (3 g/day). Participants completed two 6-week periods separated by a 3-week washout. RESULTS Data from 65 participants with a mean systolic BP (135.1 ± 11 mmHg) were included. Mean office and central BP and arterial stiffness (assessed by carotid-femoral pulse wave velocity (cfPWV) or pulse wave analysis (PWA)) did not change over time and no significant differences were observed between the egg protein hydrolysate and placebo groups (P > 0.05). Similarly, no significant effects of this egg ovalbumin-derived protein hydrolysate on blood lipid and glucose concentrations (P > 0.05) were observed. CONCLUSION This is the first dietary intervention to investigate the effects of egg ovalbumin-derived protein hydrolysates on cardiovascular risk in humans. Despite promising findings from animal and in vitro studies, this RCT does not support the hypothesis that consumption of an egg ovalbumin-derived protein hydrolysate for 6 weeks in adults with a high-normal BP results in a reduction in BP or the modification of cardiovascular risk.
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Affiliation(s)
- Alice J Lucey
- Cork Centre for Vitamin D and Nutrition Research, School of Food and Nutritional Sciences, University College Cork, Western Road, Cork, T12 YT20, Ireland.
| | - Clara Heneghan
- Cork Centre for Vitamin D and Nutrition Research, School of Food and Nutritional Sciences, University College Cork, Western Road, Cork, T12 YT20, Ireland
| | - Edmund Manning
- Cork Centre for Vitamin D and Nutrition Research, School of Food and Nutritional Sciences, University College Cork, Western Road, Cork, T12 YT20, Ireland
| | - Paul A Kroon
- Food and Health Programme, Institute of Food Research, Norwich Research Park, Norwich, UK
| | - Máiréad E Kiely
- Cork Centre for Vitamin D and Nutrition Research, School of Food and Nutritional Sciences, University College Cork, Western Road, Cork, T12 YT20, Ireland
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