51
|
Tavares TG, Xavier Malcata F. The Portuguese Paradox: Why do some inhabitants of Portugal appear to live so long when their diet is based on whey cheese? Food Chem 2012. [DOI: 10.1016/j.foodchem.2011.09.052] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
52
|
Ricci-Cabello I, Herrera MO, Artacho R. Possible role of milk-derived bioactive peptides in the treatment and prevention of metabolic syndrome. Nutr Rev 2012; 70:241-55. [PMID: 22458697 DOI: 10.1111/j.1753-4887.2011.00448.x] [Citation(s) in RCA: 100] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The growing prevalence of metabolic syndrome as well as its impact on public health has garnered increased attention in recent years. As a result, metabolic syndrome is now considered one of the world's leading public health problems. Bioactive peptides deriving from milk proteins may play an important role in the prevention and treatment of metabolic syndrome and its complications via several mechanisms, such as the satiety response, the regulation of insulinemia levels and blood pressure, the uptake of free radicals, and alteration of the lipid profile. These peptides can be incorporated into functional foods or administered via nutraceuticals to decrease the risk of obesity, atherogenesis, arterial hypertension, and type 2 diabetes. Recent findings have generated considerable scientific and commercial interest in milk-derived bioactive peptides, leading to numerous publications on the effectiveness of these substances. This review summarizes the current knowledge on bioactive peptides derived from milk proteins and examines the potential value of these peptides in the treatment and prevention of metabolic syndrome and its complications.
Collapse
Affiliation(s)
- Ignacio Ricci-Cabello
- Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom.
| | | | | |
Collapse
|
53
|
Martínez-Maqueda D, Miralles B, Recio I, Hernández-Ledesma B. Antihypertensive peptides from food proteins: a review. Food Funct 2012; 3:350-61. [DOI: 10.1039/c2fo10192k] [Citation(s) in RCA: 199] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
54
|
Muro Urista C, Álvarez Fernández R, Riera Rodriguez F, Arana Cuenca A, Téllez Jurado A. Review: Production and functionality of active peptides from milk. FOOD SCI TECHNOL INT 2011; 17:293-317. [PMID: 21917640 DOI: 10.1177/1082013211398801] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In recent years, research on the production of active peptides obtained from milk and their potential functionality has grown, to a great extent. Bioactive peptides have been defined as specific protein fragments that have a positive impact on body functions or conditions, and they may ultimately have an influence on health. Individual proteins of casein or milk-derived products such as cheese and yogurt have been used as a protein source to study the isolation and activity of peptides with several applications. Currently, the milk whey waste obtained in the production of cheese also represents a protein source from which active peptides could be isolated with potential industrial applications. The active properties of milk peptides and the results found with regard to their physiological effects have led to the classification of peptides as belonging to the group of ingredients of protein nature, appropriate for use in functional foods or pharmaceutical formulations. In this study, the main peptides obtained from milk protein and the past research studies about its production and biological activities will be explained. Second, an analysis will be made on the methods to determinate the biological activities, the separation of bioactive peptides and its structure identification. All of these form the base required to obtain synthetic peptides. Finally, we explain the experimental animal and human trials done in the past years. Nevertheless, more research is required on the design and implementation of equipment for the industrial production and separation of peptides. In addition, different authors suggest that more emphasis should therefore be given to preclinical studies, proving that results are consistent and that effects are demonstrated repeatedly by several research human groups.
Collapse
Affiliation(s)
- C Muro Urista
- Department of Chemical Engineering and Investigation, Instituto Tecnológico de Toluca. Av. Tecnológico s/n Ex-Rancho la Virgen, Toluca, C.P. 52140, México.
| | | | | | | | | |
Collapse
|
55
|
Hernández-Ledesma B, Ramos M, Gómez-Ruiz JÁ. Bioactive components of ovine and caprine cheese whey. Small Rumin Res 2011. [DOI: 10.1016/j.smallrumres.2011.09.040] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
56
|
Graf S, Egert S, Heer M. Effects of whey protein supplements on metabolism: evidence from human intervention studies. Curr Opin Clin Nutr Metab Care 2011; 14:569-80. [PMID: 21912246 DOI: 10.1097/mco.0b013e32834b89da] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
PURPOSE OF REVIEW Epidemiological studies indicate that the consumption of milk and dairy products is inversely associated with a lower risk of metabolic disorders and cardiovascular diseases. In particular, whey protein seems to induce these effects because of bioactive compounds such as lactoferrin, immunoglobulins, glutamine and lactalbumin. In addition, it is an excellent source of branch chained amino acids. This review summarizes recent findings on the effects of whey protein on metabolic disorders and the musculoskeletal system. RECENT FINDINGS We identified 25 recently published intervention trials examining chronic and/or acute effects of whey protein supplementation on lipid and glucose metabolism, blood pressure, vascular function and on the musculoskeletal system. Whey protein appears to have a blood glucose and/or insulin lowering effect partly mediated by incretins. In addition, whey protein may increase muscle protein synthesis. In contrast there are no clear-cut effects shown on blood lipids and lipoproteins, blood pressure and vascular function. For bone metabolism the data are scarce. SUMMARY In summary, whey protein may affect glucose metabolism and muscle protein synthesis. However, the evidence for a clinical efficacy is not strong enough to make final recommendations with respect to a specific dose and the duration of supplementation.
Collapse
Affiliation(s)
- Sonja Graf
- Department of Nutrition and Food Science, Nutritional Physiology, University of Bonn, Bonn, Germany
| | | | | |
Collapse
|
57
|
Gu Y, Majumder K, Wu J. QSAR-aided in silico approach in evaluation of food proteins as precursors of ACE inhibitory peptides. Food Res Int 2011. [DOI: 10.1016/j.foodres.2011.01.051] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
58
|
Hernández-Ledesma B, del Mar Contreras M, Recio I. Antihypertensive peptides: production, bioavailability and incorporation into foods. Adv Colloid Interface Sci 2011; 165:23-35. [PMID: 21185549 DOI: 10.1016/j.cis.2010.11.001] [Citation(s) in RCA: 312] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2010] [Revised: 11/25/2010] [Accepted: 11/27/2010] [Indexed: 02/05/2023]
Abstract
Bioactive food peptides are encrypted within the sequence of food proteins but can be released during food processing (by enzymatic hydrolysis or fermentation) or during gastrointestinal transit. Among bioactive food peptides, those with antihypertensive activity are receiving special attention due to the high prevalence of hypertension in the Western countries and its role in cardiovascular diseases. This paper reviews the current literature on antihypertensive food peptides, focusing on the main methodologies for their production, such as enzymatic hydrolysis, fermentation and the use of recombinant bacteria. This paper also describes the structure/activity relationship of angiotensin-converting enzyme (ACE)-inhibitory peptides, as well as their bioavailability, physiological effects demonstrated by both in vitro and in vivo assays, and the contribution of mechanisms of action other than ACE inhibition. Finally, current reported strategies for incorporation of antihypertensive peptides into foods and their effects on both availability and activity are revised in this manuscript.
Collapse
|
59
|
High blood pressure-lowering and vasoprotective effects of milk products in experimental hypertension. Br J Nutr 2011; 106:1353-63. [DOI: 10.1017/s0007114511001723] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Milk casein-derived angiotensin-converting enzyme (ACE)-inhibitory tripeptides isoleucine-proline-proline (Ile-Pro-Pro) and valine-proline-proline (Val-Pro-Pro) have been shown to have antihypertensive effects in human subjects and to attenuate the development of hypertension in experimental models. The aim of the present study was to investigate the effect of a fermented milk product containing Ile-Pro-Pro and Val-Pro-Pro and plant sterols on already established hypertension, endothelial dysfunction and aortic gene expression. Male spontaneously hypertensive rats (SHR) with baseline systolic blood pressure (SBP) of 195 mmHg were given either active milk (tripeptides and plant sterols), milk or water ad libitum for 6 weeks. SBP was measured weekly by the tail-cuff method. The endothelial function of mesenteric arteries was investigated at the end of the study. Aortas were collected for DNA microarray study (Affymetrix Rat Gene 1.0 ST Array). The main finding was that active milk decreased SBP by 16 mmHg compared with water (178 (sem 3) v. 195 (sem 3) mmHg; P < 0·001). Milk also had an antihypertensive effect. Active milk improved mesenteric artery endothelial dysfunction by NO-dependent and endothelium-derived hyperpolarising factor-dependent mechanisms. Treatment with active milk caused mild changes in aortic gene expression; twenty-seven genes were up-regulated and eighty-two down-regulated. Using the criteria for fold change (fc) < 0·833 or > 1·2 and P < 0·05, the most affected (down-regulated) signalling pathways were hedgehog, chemokine and leucocyte transendothelial migration pathways. ACE expression was also slightly decreased (fc 0·86; P = 0·047). In conclusion, long-term treatment with fermented milk enriched with tripeptides and plant sterols decreases SBP, improves endothelial dysfunction and affects signalling pathways related to inflammatory responses in SHR.
Collapse
|
60
|
Ramchandran L, Shah NP. Yogurt Can Beneficially Affect Blood Contributors of Cardiovascular Health Status in Hypertensive Rats. J Food Sci 2011; 76:H131-6. [DOI: 10.1111/j.1750-3841.2011.02127.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
61
|
Comparison of the metabolic effects of milk-derived α-lactalbumin and amino acids mixture with equal composition in diet-induced obese mice. J Funct Foods 2011. [DOI: 10.1016/j.jff.2011.02.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
62
|
Sánchez D, Kassan M, Contreras MDM, Carrón R, Recio I, Montero MJ, Sevilla MÁ. Long-term intake of a milk casein hydrolysate attenuates the development of hypertension and involves cardiovascular benefits. Pharmacol Res 2011; 63:398-404. [PMID: 21300153 DOI: 10.1016/j.phrs.2011.01.015] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2010] [Revised: 01/31/2011] [Accepted: 01/31/2011] [Indexed: 02/05/2023]
Abstract
Essential hypertension is considered a serious health problem and diet can play an important role in its prevention and treatment. The aim of this study was to evaluate the effect of the long-term intake of a product based on milk casein hydrolysate on the development of hypertension in spontaneously hypertensive rats (SHR). A daily dose of 800 mg/kg body weight of the casein hydrolysate product was administered dissolved in drinking water during 6 weeks. Systolic and diastolic blood pressures were measured weekly by the tail-cuff method. Endothelial function in aorta and mesenteric segments, left ventricular hypertrophy, endothelial nitric oxide synthase (eNOS) expression in aorta and plasmatic angiotensin conversion enzyme (ACE) activity were also evaluated at the end of treatment. The development of hypertension was attenuated in the group treated with the casein hydrolysate product; in this sense the systolic blood pressure increased 33±3 mmHg in control group and only 18±5 mmHg in the treated group during the experimental period. In addition, the treatment improved aorta and mesenteric acetylcholine relaxations and increased the eNOS expression in aorta. Left ventricular hypertrophy decreased in treated SHR accompanied by a significant decrease in interstitial fibrosis. These results warrant evaluation in humans to determine if the product based on a casein hydrolysate could be used as a functional food ingredient to prevent blood pressure increased with additional cardiovascular benefits.
Collapse
Affiliation(s)
- David Sánchez
- Instituto de Investigación en Ciencias de la Alimentación (CIAL, CSIC-UAM), Nicolás Cabrera 9, 28049 Madrid, Spain
| | | | | | | | | | | | | |
Collapse
|
63
|
Acute effects of whey protein isolate on blood pressure, vascular function and inflammatory markers in overweight postmenopausal women. Br J Nutr 2011; 105:1512-9. [PMID: 21272399 DOI: 10.1017/s0007114510005313] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Previous evidence indicates that chronic consumption of dairy whey proteins has beneficial effects on CVD risk factors. The present study investigated the postprandial effects of whey protein isolate on blood pressure, vascular function and inflammatory markers in overweight and obese postmenopausal women. This was a randomised, three-way cross-over design study where twenty overweight and obese postmenopausal women consumed a breakfast meal in conjunction with one of three supplements: 45 g whey protein isolate, 45 g sodium caseinate or 45 g of a glucose control. Fasting and postprandial blood samples, blood pressure and pulse wave analysis readings were taken for up to 6 h. After consumption of the meal, both systolic and diastolic blood pressure, and augmentation index (AI) decreased initially for all interventions and gradually returned to baseline levels by 6 h. However, there were no significant differences in AI, systolic or diastolic blood pressure within or between the glucose control, casein or whey groups. There were also no significant group effects on plasma inflammatory markers (IL-6, TNF-α and C-reactive protein). The health effects previously seen with chronic whey protein ingestion were not seen in the acute 6 h postprandial period in relation to blood pressure, vascular function or inflammatory markers when compared with casein and a glucose control. This suggests that such effects are better observed from the long-term consumption of whey proteins.
Collapse
|
64
|
Rousseau-Ralliard D, Goirand F, Tardivel S, Lucas A, Algaron F, Mollé D, Robert V, Auchère D, Boudier JF, Gaillard JL, Monnet V, Tauzin J, Grynberg A. Inhibitory effect of αS1- and αS2-casein hydrolysates on angiotensin I-converting enzyme in human endothelial cells in vitro, rat aortic tissue ex vivo, and renovascular hypertensive rats in vivo. J Dairy Sci 2010; 93:2906-21. [PMID: 20630208 DOI: 10.3168/jds.2010-3060] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2010] [Accepted: 03/17/2010] [Indexed: 01/10/2023]
Abstract
A great number of milk-derived peptides have been shown to exhibit angiotensin converting enzyme (ACE) inhibitory properties and thus potential utility in the regulation of blood pressure. The present work aimed to investigate the effects of 2 milk trypsin hydrolysates from alpha(S1)- and alpha(S2)-casein (CH1 and CH2, respectively) on ACE activity evaluated in human umbilical vein endothelial cells (HUVEC) in vitro, rat aortic tissues ex vivo, and renovascular hypertensive rat in vivo. Incubation of HUVEC and rat aortic tissues with CH1 or CH2 induced a concentration-dependent inhibition of hydrolysis of the ACE substrate hippuryl-histidyl-leucine (HHL), the hydrolysates being much less potent than perindopril (an ACE inhibitor). However, in contrast to perindopril, CH1 and CH2 failed to modify angiotensin I-induced aortic ring vasoconstriction. The HPLC profiles of rat plasma after intragastric administration were variable among individuals but none of the observed peaks corresponded to peptides comprising CH1 or CH2 or to fragments of these peptides. During 4 wk of cardiovascular monitoring, in hydrolysate-fed renovascular hypertensive rats, systolic blood pressure weakly decreased compared with the control group. However, the CH1-fed hypertensive rats exhibited a decrease of heart rate during the nocturnal period of activity. To conclude, our results show that CH1 and CH2 inhibited ACE activity in HUVEC and rat aortic tissue but failed to antagonize the aortic-constricting effects of the natural agonist angiotensin I. Moreover, we demonstrated that CH1, to a greater extent than CH2, can slightly affect cardiovascular parameters although the ingested bioactive peptides could not be detected in the blood.
Collapse
Affiliation(s)
- D Rousseau-Ralliard
- INRA, Unité Mixte de Recherche 1154 INRA-Université Paris-Sud 11, Laboratoire Lipides membranaires et régulations fonctionnelles du coeur et des vaisseaux, Châtenay-Malabry, F-92296 France.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
65
|
Fluegel SM, Shultz TD, Powers JR, Clark S, Barbosa-Leiker C, Wright BR, Freson TS, Fluegel HA, Minch JD, Schwarzkopf LK, Miller AJ, Di Filippo MM. Whey beverages decrease blood pressure in prehypertensive and hypertensive young men and women. Int Dairy J 2010. [DOI: 10.1016/j.idairyj.2010.06.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
66
|
Tryptic amaranth glutelin digests induce endothelial nitric oxide production through inhibition of ACE: Antihypertensive role of amaranth peptides. Nitric Oxide 2010; 23:106-11. [DOI: 10.1016/j.niox.2010.04.006] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2009] [Revised: 03/30/2010] [Accepted: 04/23/2010] [Indexed: 11/19/2022]
|
67
|
Beaulieu J, Millette E, Trottier E, Précourt LP, Dupont C, Lemieux P. Regulatory function of a malleable protein matrix as a novel fermented whey product on features defining the metabolic syndrome. J Med Food 2010; 13:509-19. [PMID: 20406141 DOI: 10.1089/jmf.2009.0083] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Previously, we reported that a malleable protein matrix (MPM), composed of whey fermented by a proprietary Lactobacillus kefiranofaciens strain, has immunomodulatory and anti-inflammatory properties. MPM consumption leads to a considerable reduction in the cytokine and chemokine production (tumor necrosis factor-alpha, interleukin-1beta, and interleukin-6), thus lowering chronic inflammation or metaflammation. Inhibition of metaflammation should provide positive impact, particularly in the context of dyslipidemia, insulin resistance, and hypertension. In this study, we investigated whether short-term MPM supplementation ameliorates those features of metabolic syndrome (MetS). The ability of MPM to potentially regulate triglyceride level, cholesterol level, blood glucose level, and hypertension was evaluated in different animal models. MPM lowers triglyceride level by 37% (P < .05) in a poloxamer 407 dyslipidemia-induced rat model. It also reduces total cholesterol by 18% (P < .05) and low-density lipoprotein-cholesterol level by 32% (P < .05) and raises high-density lipoprotein-cholesterol level by 17% (P < .01) in Syrian Golden hamsters fed a high fat/high cholesterol diet for 2 weeks. MPM reestablishes the fasting glucose insulin ratio index to normal levels (P = .07) in this latter model and lowers the plasma glucose level area under the curve (-10%, P = .09) in fructose-fed rats after 2 weeks of treatment. In spontaneously hypertensive rats, MPM-treated animals showed a reduction of SBP by at least 13% (P < .05) for 4 weeks. Results from this study suggest that MPM is a functional ingredient with beneficial effects on lipid metabolism, blood glucose control, and hypertension that might contribute to the management of MetS and thus reducing the risk of cardiovascular diseases.
Collapse
Affiliation(s)
- J Beaulieu
- Technologie Biolactis Inc., Laval, Québec, Canada
| | | | | | | | | | | |
Collapse
|
68
|
Pal S, Ellis V. The chronic effects of whey proteins on blood pressure, vascular function, and inflammatory markers in overweight individuals. Obesity (Silver Spring) 2010; 18:1354-9. [PMID: 19893505 DOI: 10.1038/oby.2009.397] [Citation(s) in RCA: 134] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Limited evidence suggests that dairy whey protein may be the major dairy component that is responsible for health benefits currently associated with increased dairy consumption. Whey proteins may reduce blood pressure and improve cardiovascular health. This study evaluated the effects of whey protein supplementation on blood pressure, vascular function and inflammatory markers compared to casein and glucose (control) supplementation in overweight/obese individuals. The subjects were randomized to either whey protein, casein or glucose supplementation for 12 weeks according to a parallel design. In all, 70 men and women with a mean (+/-s.e.m.) BMI (kg/m(2)) of 31.3 +/- 0.8 completed the study. Systolic blood pressure (SBP) decreased significantly at week 6 compared to baseline in the whey and casein groups, (P = 0.028 and P = 0.020, respectively) and at week 12 (P = 0.020, and P = 0.017, respectively). Diastolic blood pressure (DBP) decreased significantly compared to baseline in the whey and casein groups (P = 0.038 and P = 0.042, respectively) at week 12. DBP decreased significantly in the whey and casein groups (P = 0.025, P = 0.038, respectively) at week 12 compared to the control group. Augmentation index (AI) was significantly lower from baseline at 12 weeks (P = 0.021) in the whey group. AI decreased significantly in the whey group at 12 weeks compared to control (P = 0.006) and casein (P = 0.006). There were no significant changes in inflammatory markers within or between groups. This study demonstrated that supplementation with whey protein improves blood pressure and vascular function in overweight and obese individuals.
Collapse
Affiliation(s)
- Sebely Pal
- School of Public Health, Curtin Health Innovation Research Institute, ATN Centre for Metabolic Fitness, Curtin University of Technology, Perth, Western Australia.
| | | |
Collapse
|
69
|
Ruiz-Giménez P, Ibáñez A, Salom JB, Marcos JF, López-Díez JJ, Vallés S, Torregrosa G, Alborch E, Manzanares P. Antihypertensive properties of lactoferricin B-derived peptides. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:6721-6727. [PMID: 20446662 DOI: 10.1021/jf100899u] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
A set of eight lactoferricin B (LfcinB)-derived peptides was examined for inhibitory effects on angiotensin I-converting enzyme (ACE) activity and ACE-dependent vasoconstriction, and their hypotensive effect in spontaneously hypertensive rats (SHR). Peptides were derived from different elongations both at the C-terminal and N-terminal ends of the representative peptide LfcinB(20-25), which is known as the LfcinB antimicrobial core. All of the eight LfcinB-derived peptides showed in vitro inhibitory effects on ACE activity with different IC(50) values. Moreover, seven of them showed ex vivo inhibitory effects on ACE-dependent vasoconstriction. No clear correlation between in vitro and ex vivo inhibitory effects was found. Only LfcinB(20-25) and one of its fragments, F1, generated after a simulated gastrointestinal digestion, showed significant antihypertensive effects in SHR after oral administration. Remarkably, F1 did not show any effect on ACE-dependent vasoconstriction in contrast to the inhibitory effect showed by LfcinB(20-25). In conclusion, two LfcinB-derived peptides lower blood pressure and exhibit potential as orally effective antihypertensive compounds, yet a complete elucidation of the mechanism(s) involved deserves further ongoing research.
Collapse
Affiliation(s)
- Pedro Ruiz-Giménez
- Departamento de Biotecnología de Alimentos, Instituto de Agroquímica y Tecnología de Alimentos, Consejo Superior de Investigaciones Científicas, Burjassot, Valencia, Spain
| | | | | | | | | | | | | | | | | |
Collapse
|
70
|
Madureira AR, Tavares T, Gomes AMP, Pintado ME, Malcata FX. Invited review: physiological properties of bioactive peptides obtained from whey proteins. J Dairy Sci 2010; 93:437-55. [PMID: 20105516 DOI: 10.3168/jds.2009-2566] [Citation(s) in RCA: 207] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2009] [Accepted: 09/18/2009] [Indexed: 01/11/2023]
Abstract
Processing of whey proteins yields several bioactive peptides that can trigger physiological effects in the human body: on the nervous system via their opiate and ileum-contracting activities; on the cardiovascular system via their antithrombotic and antihypertensive activities; on the immune system via their antimicrobial and antiviral activities; and on the nutrition system via their digestibility and hypocholesterolemic effects. The specific physiological effects, as well the mechanisms by which they are achieved and the stabilities of the peptides obtained from various whey fractions during their gastrointestinal route, are specifically discussed in this review.
Collapse
Affiliation(s)
- A R Madureira
- Centro de Biotecnologia e Quimica Fina (CBQF)/Escola Superior de Biotecnologia, Universidade Católica Portuguesa, R. Dr. António Bernardino de Almeida, P-4200-072 Porto, Portugal
| | | | | | | | | |
Collapse
|
71
|
Ricci I, Artacho R, Olalla M. Milk Protein Peptides With Angiotensin I-Converting Enzyme Inhibitory (ACEI) Activity. Crit Rev Food Sci Nutr 2010; 50:390-402. [DOI: 10.1080/10408390802304198] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Ignacio Ricci
- Department de Nutrition and Bromatology, College of Pharmacy, University of Granada, Spain
| | - Reyes Artacho
- Department de Nutrition and Bromatology, College of Pharmacy, University of Granada, Spain
| | - Manuel Olalla
- Department de Nutrition and Bromatology, College of Pharmacy, University of Granada, Spain
| |
Collapse
|
72
|
Usinger L, Ibsen H, Linneberg A, Azizi M, Flambard B, Jensen LT. Humanin vivostudy of the renin-angiotensin-aldosterone system and the sympathetic activity after 8 weeks daily intake of fermented milk. Clin Physiol Funct Imaging 2010; 30:162-8. [DOI: 10.1111/j.1475-097x.2009.00921.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
73
|
Kamau SM, Cheison SC, Chen W, Liu XM, Lu RR. Alpha-Lactalbumin: Its Production Technologies and Bioactive Peptides. Compr Rev Food Sci Food Saf 2010. [DOI: 10.1111/j.1541-4337.2009.00100.x] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
74
|
The antihypertensive effect of fermented milk in individuals with prehypertension or borderline hypertension. J Hum Hypertens 2010; 24:678-83. [DOI: 10.1038/jhh.2010.4] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
75
|
Jäkälä P, Vapaatalo H. Antihypertensive Peptides from Milk Proteins. Pharmaceuticals (Basel) 2010; 3:251-272. [PMID: 27713251 PMCID: PMC3991029 DOI: 10.3390/ph3010251] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2009] [Revised: 01/14/2010] [Accepted: 01/18/2010] [Indexed: 02/07/2023] Open
Abstract
Dietary proteins possess a wide range of nutritional and functional properties. They are used as a source of energy and amino acids, which are needed for growth and development. Many dietary proteins, especially milk proteins, contain physiologically active peptides encrypted in the protein sequence. These peptides may be released during gastrointestinal digestion or food processing and once liberated, cause different physiological functions. Milk-derived bioactive peptides are shown to have antihypertensive, antimicrobial, immunomodulatory, antioxidative and mineral-binding properties. During the fermentation of milk with certain lactobacilli, two interesting tripeptides Ile-Pro-Pro and Val-Pro-Pro are released from casein to the final product. These lactotripeptides have attenuated the development of hypertension in several animal models and lowered blood pressure in clinical studies. They inhibit ACE in vitro at micromolar concentrations, protect endothelial function in vitro and reduce arterial stiffness in humans. Thus, milk as a traditional food product can after certain processing serve as a functional food and carry specific health-promoting effects, providing an option to control blood pressure.
Collapse
Affiliation(s)
- Pauliina Jäkälä
- Institute of Biomedicine, Pharmacology, University of Helsinki, P.O. Box 63, 00014, University of Helsinki, Finland.
| | - Heikki Vapaatalo
- Institute of Biomedicine, Pharmacology, University of Helsinki, P.O. Box 63, 00014, University of Helsinki, Finland
| |
Collapse
|
76
|
Contreras MDM, Carrón R, Montero MJ, Ramos M, Recio I. Novel casein-derived peptides with antihypertensive activity. Int Dairy J 2009. [DOI: 10.1016/j.idairyj.2009.05.004] [Citation(s) in RCA: 129] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
77
|
Jäkälä P, Jauhiainen T, Korpela R, Vapaatalo H. Milk protein-derived bioactive tripeptides Ile-Pro-Pro and Val-Pro-Pro protect endothelial function in vitro in hypertensive rats. J Funct Foods 2009. [DOI: 10.1016/j.jff.2009.03.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
|
78
|
|
79
|
Abstract
Hypertension or high blood pressure is a significant health problem worldwide. Typically, lifestyle changes, including adopting a healthy diet, are recommended for people with an elevated blood pressure. Lactotripeptides are bioactive milk peptides with potential antihypertensive properties in man. These peptides, as part of a food product or as nutraceutical, may contribute to the prevention and treatment of hypertension. This paper reviews the current evidence of the blood pressure control properties of lactotripeptides in man. Blood pressure-lowering effects of lactotripeptides are typically measured after 4-6 weeks of treatment. However, in some cases, a blood pressure response has been observed after 1-2 weeks. Maximum blood pressure reductions approximate 13 mmHg (systolic blood pressure) and 8 mmHg (diastolic blood pressure) after active treatment compared with placebo, and are likely reached after 8-12 weeks of treatment. Effective dosages of lactotripeptides range from 3.07 to 52.5 mg/d. Evidence indicates that lactotripeptides are only effective at elevated blood pressure; no further lowering of normal blood pressure has been observed. Concomitant intake of antihypertensive medication does not seem to influence the potency of lactotripeptides to lower blood pressure. Similarly, ethnicity has not been found to influence the extent of lactotripeptide-induced blood pressure lowering. Based on the currently available data, lactotripeptides appear to be safe and effective. Thus, they can be part of a healthy diet and lifestyle to prevent or reduce high blood pressure.
Collapse
|
80
|
The possible roles of food-derived bioactive peptides in reducing the risk of cardiovascular disease. J Nutr Biochem 2008; 19:643-54. [DOI: 10.1016/j.jnutbio.2007.11.010] [Citation(s) in RCA: 487] [Impact Index Per Article: 30.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2007] [Accepted: 11/26/2007] [Indexed: 11/23/2022]
|
81
|
Silva-Sánchez C, de la Rosa APB, León-Galván MF, de Lumen BO, de León-Rodríguez A, de Mejía EG. Bioactive peptides in amaranth (Amaranthus hypochondriacus) seed. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2008; 56:1233-40. [PMID: 18211015 DOI: 10.1021/jf072911z] [Citation(s) in RCA: 131] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Amaranth seeds are rich in protein with a high nutritional value, but little is known about their bioactive compounds that could benefit health. The objectives of this research were to investigate the presence, characterization, and the anticarcinogenic properties of the peptide lunasin in amaranth seeds. Furthermore, to predict and identify other peptides in amaranth seed with potential biological activities. ELISA showed an average concentration of 11.1 microg lunasin equivalent/g total extracted protein in four genotypes of mature amaranth seeds. Glutelin fraction had the highest lunasin concentration (3.0 microg/g). Lunasin was also identified in albumin, prolamin and globulin amaranth protein fractions and even in popped amaranth seeds. Western blot analysis revealed a band at 18.5 kDa, and MALDI-TOF analysis showed that this peptide matched more than 60% of the soybean lunasin peptide sequence. Glutelin extracts digested with trypsin, showed the induction of apoptosis against HeLa cells. Prediction of other bioactive peptides in amaranth globulins and glutelins were mainly antihypertensive. This is the first study that reports the presence of a lunasin-like peptide and other potentially bioactive peptides in amaranth protein fractions.
Collapse
Affiliation(s)
- C Silva-Sánchez
- Molecular Biology Division, Instituto Potosino de Investigación Científica y Tecnológica, San Luis Potosí, S.L.P., Mexico
| | | | | | | | | | | |
Collapse
|
82
|
Engineered Food/Protein Structure And Bioactive Proteins and Peptides From Whey. ACTA ACUST UNITED AC 2008. [DOI: 10.1007/978-0-387-75430-7_30] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
|
83
|
Liong MT. Probiotics: a critical review of their potential role as antihypertensives, immune modulators, hypocholesterolemics, and perimenopausal treatments. Nutr Rev 2007; 65:316-28. [PMID: 17695372 DOI: 10.1111/j.1753-4887.2007.tb00309.x] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
The conventional use of probiotics to modulate gastrointestinal health, such as in improving lactose intolerance, increasing natural resistance to infectious diseases in the gastrointestinal tract, suppressing traveler's diarrhea, and reducing bloating, has been well investigated and documented. Most of the mechanisms reported to date are mainly caused by the suppression of pathogenic bacteria. Currently, the potential applications of probiotics are being expanded beyond alleviating gastrointestinal disorders to include benefits involving antihypertension, immunomodulation, improving serum lipid profiles, and the alleviation of postmenopausal disorders. Although they seem promising, most of these postulated benefits are based on in vitro evaluations, and the lack of in vivo evidence and/or incompatible outcomes between in vitro experiments and in vivo trials has led to inconclusive claims. This present review highlights some of the previous roles of probiotics on gut health and addresses several potential roles currently being investigated.
Collapse
Affiliation(s)
- Min-Tze Liong
- School of Industrial Technology, Food Technology Division, Universiti Sains Malaysia, Penang, Malaysia.
| |
Collapse
|
84
|
|
85
|
Vermeirssen V, Van Camp J, Verstraete W. Bioavailability of angiotensin I converting enzyme inhibitory peptides. Br J Nutr 2007; 92:357-66. [PMID: 15469639 DOI: 10.1079/bjn20041189] [Citation(s) in RCA: 391] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Hypertension or high blood pressure is a significant health problem worldwide. Bioactive peptides that inhibit angiotensin I converting enzyme (ACE) in the cardiovascular system can contribute to the prevention and treatment of hypertension. These ACE inhibitory peptides are derived from many food proteins, especially milk proteins. An ACE inhibitory activity in vitro does not always imply an antihypertensive effect in vivo. Even if it does, it is very difficult to establish a direct relationship between in vitro and in vivo activity. This is mainly due to the bioavailability of the ACE inhibitory peptides after oral administration and the fact that peptides may influence blood pressure by mechanisms other than ACE inhibition. To exert an antihypertensive effect after oral ingestion, ACE inhibitory peptides have to reach the cardiovascular system in an active form. Therefore, they need to remain active during digestion by human proteases and be transported through the intestinal wall into the blood. The bioavailability of some ACE inhibitory peptides has been studied. It is also known that (hydroxy)proline-containing peptides are generally resistant to degradation by digestive enzymes. Peptides can be absorbed intact through the intestine by paracellular and transcellular routes, but the potency of the bioactivity after absorption is inversely correlated to chain length. In addition, some strategies are proposed to increase the bioavailability of ACE inhibitory peptides. Further research into the bioavailability of ACE inhibitory peptides will lead to the development of more effective ACE inhibitory peptides and foods.
Collapse
Affiliation(s)
- Vanessa Vermeirssen
- Department of Food Technology and Nutrition, Ghent University, Faculty of Agriculture and Applied Biological Sciences, Ghent, Belgium
| | | | | |
Collapse
|
86
|
Miguel M, López-Fandiño R, Ramos M, Aleixandre A. Short-term effect of egg-white hydrolysate products on the arterial blood pressure of hypertensive rats. Br J Nutr 2007; 94:731-7. [PMID: 16277776 DOI: 10.1079/bjn20051570] [Citation(s) in RCA: 91] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In the present study we evaluate the blood pressure-lowering effect of the following products: the hydrolysate obtained from egg white (EW) by enzymatic treatment with pepsin (HEW), the peptide fraction of HEW with molecular mass lower than 3000 Da (HEW<3000 Da), and three peptide sequences isolated from HEW<3000 Da (Tyr-Ala-Glu-Glu-Arg-Tyr-Pro-Ile-Leu: YAEERYPIL); (Arg-Ala-Asp-His-Pro-Phe-Leu: RADHPFL); and (Ile-Val-Phe (IVF)). These peptides, and also HEW and HEW<3000 Da, had been characterized previously in vitro as potent inhibitors of angiotensin-converting enzyme (ACE). EW and the products mentioned earlier were orally administered by gastric intubation, to 17–20-week-old male spontaneously hypertensive rats (SHR) and normotensive Wistar–Kyoto (WKY) rats. We measured the systolic blood pressure (SBP) and the diastolic blood pressure (DBP) of the rats by the tail cuff method before administration and also 2, 4, 6, 8 and 24h post-administration. Distilled water served as negative control, and we used captopril (50mg/kg) as positive control to carry out similar experiments with a known ACE inhibitor. HEW, HEW<3000 Da and the three peptide sequences decreased SBP and DBP in SHR but they did not modify these variables in WKY rats. The peptide sequences YAEERYPIL, RADHPFL and IVF showed a potency to decrease blood pressure greater than HEW or HEW<3000 Da. The results obtained suggest that the studied products could be used as a functional food with potential therapeutic benefit in the prevention and treatment of hypertension.
Collapse
Affiliation(s)
- Marta Miguel
- Instituto de Fermentaciones Industriales (CSIC), Madrid, Spain
| | | | | | | |
Collapse
|
87
|
Miguel M, Muguerza B, Sánchez E, Delgado MA, Recio I, Ramos M, Aleixandre MA. Changes in arterial blood pressure in hypertensive rats caused by long-term intake of milk fermented by Enterococcus faecalis CECT 5728. Br J Nutr 2007; 94:36-43. [PMID: 16115330 DOI: 10.1079/bjn20051450] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
We have evaluated the changes in arterial blood pressure caused in spontaneously hypertensive rats (SHR) by long-term intake of an Enterococcus faecalis CECT 5728-fermented milk with significant angiotensin-converting enzyme (ACE)-inhibitory activity. After being weaned, male 3-week-old SHR were randomized into five groups. Until the 20th week of life, rats in each group were given one of the following drinking fluids: tap water (negative control 1), a fermented milk without ACE-inhibitory activity (negative control 2), captopril (100 mg/kg) (positive control), the E. faecalis CECT 5728-fermented milk that had significant ACE-inhibitory activity, or Ca-enriched E. faecalis CECT 5728-fermented milk. Animals in the different groups were then given tap water as drinking fluid from the 20th to 25th week of life. Systolic blood pressure (SBP) and diastolic blood pressure (DBP) were measured weekly in the rats, from the 6th to 25th week of life, by the tail-cuff method. A definite decrease in SBP and DBP could be observed in the rats treated with captopril and also in the rats that received the E. faecalis CECT 5728-fermented milks. The greatest antihypertensive effect was observed when the pharmacological treatment was administered. The effect of the Ca-enriched fermented milk was slightly more accentuated and more constant than the effect of the E. faecalis CECT 5728-fermented milk that had not been enriched in Ca. SBP and DBP increased in the treated SHR when the corresponding antihypertensive treatment was removed. Fermentation of milk with E. faecalis CECT 5728 may therefore be a successful strategy to produce a functional food with antihypertensive activity.
Collapse
Affiliation(s)
- M Miguel
- Instituto de Fermentaciones Industriales (CSIC), Madrid, Spain
| | | | | | | | | | | | | |
Collapse
|
88
|
Abstract
Epidemiological studies suggest that milk consumption and dietary intake of dairy proteins are inversely related to the risk for hypertension. Also, some intervention studies have shown a blood pressure-lowering effect of milk products and dairy proteins. Milk peptides are formed from milk proteins by enzymatic breakdown by digestive enzymes or by the proteinases formed by lactobacilli during the fermentation of milk. Several milk peptides have been shown to have antihypertensive effects in animal and in clinical studies. The most studied mechanism underlying the antihypertensive effects of milk peptides is inhibition of angiotensin-converting enzyme. Milk peptides may also have other additional mechanisms to lower blood pressure such as opioid-like activities and mineral-binding and antithrombotic properties. The future challenge is to identify the antihypertensive components in milk and their mechanisms of action and thus to find more possibilities for using these constituents and products as a dietary treatment of hypertension.
Collapse
|
89
|
|
90
|
Physiological, chemical and technological aspects of milk-protein-derived peptides with antihypertensive and ACE-inhibitory activity. Int Dairy J 2006. [DOI: 10.1016/j.idairyj.2006.06.004] [Citation(s) in RCA: 279] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
91
|
|
92
|
Roufik S, Gauthier SF, Turgeon SL. In vitro digestibility of bioactive peptides derived from bovine β-lactoglobulin. Int Dairy J 2006. [DOI: 10.1016/j.idairyj.2005.03.010] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
93
|
Arihara K. Functional Properties of Bioactive Peptides Derived From Meat Proteins. ADVANCED TECHNOLOGIES FOR MEAT PROCESSING 2006. [DOI: 10.1201/9781420017311.ch10] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
|
94
|
Miguel M, Muguerza B, Sánchez E, Delgado M, Recio I, Ramos M, Aleixandre A. Efecto producido por la ingesta crónica de leche fermentada por Enterococcus faecalis CECT 5728 en ratas hipertensas. HIPERTENSION Y RIESGO VASCULAR 2006. [DOI: 10.1016/s1889-1837(06)71630-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
95
|
Costa EL, Almeida AR, Netto FM, Gontijo JAR. Effect of intraperitoneally administered hydrolyzed whey protein on blood pressure and renal sodium handling in awake spontaneously hypertensive rats. Braz J Med Biol Res 2005; 38:1817-24. [PMID: 16302096 DOI: 10.1590/s0100-879x2005001200010] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The present study evaluated the acute effect of the intraperitoneal (ip) administration of a whey protein hydrolysate (WPH) on systolic arterial blood pressure (SBP) and renal sodium handling by conscious spontaneously hypertensive rats (SHR). The ip administration of WPH in a volume of 1 ml dose-dependently lowered the SBP in SHR 2 h after administration at doses of 0.5 g/kg (0.15 M NaCl: 188.5 +/- 9.3 mmHg vs WPH: 176.6 +/- 4.9 mmHg, N = 8, P = 0.001) and 1.0 g/kg (0.15 M NaCl: 188.5 +/- 9.3 mmHg vs WPH: 163.8 +/- 5.9 mmHg, N = 8, P = 0.0018). Creatinine clearance decreased significantly (P = 0.0084) in the WPH-treated group (326 +/- 67 microL min-1 100 g body weight-1) compared to 0.15 M NaCl-treated (890 +/- 26 microL min-1 100 g body weight-1) and captopril-treated (903 +/- 72 microL min-1 100 g body weight-1) rats. The ip administration of 1.0 g WPH/kg also decreased fractional sodium excretion to 0.021 +/- 0.019% compared to 0.126 +/- 0.041 and 0.66 +/- 0.015% in 0.15 M NaCl and captopril-treated rats, respectively (P = 0.033). Similarly, the fractional potassium excretion in WPH-treated rats (0.25 +/- 0.05%) was significantly lower (P = 0.0063) than in control (0.91 +/- 0.15%) and captopril-treated rats (1.24 +/- 0.30%), respectively. The present study shows a decreased SBP in SHR after the administration of WPH associated with a rise in tubule sodium reabsorption despite an angiotensin I-converting enzyme (ACE)-inhibiting in vitro activity (IC50 = 0.68 mg/mL). The present findings suggest a pathway involving ACE inhibition but measurements of plasma ACE activity and angiotensin II levels are needed to support this suggestion.
Collapse
Affiliation(s)
- E L Costa
- Departamento de Planejamento Alimentar e Nutrição, Faculdade de Engenharia de Alimentos, Universidade Estadual de Campinas, 13083-970 Campinas, SP, Brazil
| | | | | | | |
Collapse
|
96
|
Murray B, Walsh D, FitzGerald R, Meisel H. ACE Inhibitory Peptides. NUTRACEUTICAL PROTEINS AND PEPTIDES IN HEALTH AND DISEASE 2005. [DOI: 10.1201/9781420028836.sec3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
97
|
Abstract
O presente artigo coloca em destaque as propriedades multifuncionais das proteínas presentes no soro de leite bovino, a começar pelo colostro que contém essas proteínas em concentrações muito elevadas e que tem por função garantir a proteção e a imunidade dos recém-nascidos. Essas mesmas proteínas continuam no leite, porém em concentrações bastante reduzidas. A utilização dessas proteínas nas formas de concentrados e isolados protéicos evidenciam propriedades muito favoráveis à saúde no sentido de diminuir o risco de doenças infecciosas e também as consideradas crônicas e/ou degenerativas. Enfatizou-se as propriedades das proteínas do soro de leite e de peptídios delas resultantes no estímulo ao sistema imunológico, na proteção contra microrganismos patogênicos e contra alguns tipos de vírus como o HIV e o vírus da hepatite C, na proteção contra vários tipos de câncer, particularmente de cólon, na proteção da mucosa gástrica contra agressão por agentes ulcerogênicos, evidenciou-se várias linhas de ação protetora das proteínas de soro contra agentes condicionadores de problemas cardiovasculares. Com base em várias propriedades funcionais das proteínas do soro de leite, discutiu-se a vantagem e os benefícios de seu uso como suplemento alimentar para atletas e esportistas em geral. Os possíveis benefícios de vários fatores de crescimento celular, presentes no soro de leite também foram discutidos.
Collapse
|
98
|
Murakami M, Tonouchi H, Takahashi R, Kitazawa H, Kawai Y, Negishi H, Saito T. Structural Analysis of a New Anti-Hypertensive Peptide (β-Lactosin B) Isolated from a Commercial Whey Product. J Dairy Sci 2004; 87:1967-74. [PMID: 15328207 DOI: 10.3168/jds.s0022-0302(04)70013-2] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Angiotensin-converting enzyme (ACE) inhibitory activities and anti-hypertensive activities in spontaneously hypertensive rats (SHR) of 12 kinds of commercial peptides of food additive grade were measured. Four peptide products derived from milk proteins showed strong anti-hypertensive activities (>-18.0 mm Hg). A sample of WE80BG derived from whey proteins showed the strongest anti-hypertensive activity (-21.2 +/- 16.9 mm Hg) with a medium level of ACE inhibitory activity (53.6%), and it was subjected to hydrophobic and gel filtration chromatography. From the low molecular weight fraction, an anti-hypertensive peptide was isolated by using reversed-phase HPLC, and it was found to be a tetrapeptide, alanine-leucine-proline-methionine (Ala-Leu-Pro-Met, ALPM), the origin of which was estimated to be beta-lactoglobulin f 142 to 145. At 8 h after oral administration of ALPM in SHR, systolic blood pressure was significantly decreased (-21.4 +/- 7.8 mm Hg), but the IC50 value (concentration of peptide needed to inhibit 50% of the ACE activity) of ALPM was not so high. We named the Ala-Leu-Pro-Met "beta-lactosin B." This peptide is the second anti-hypertensive peptide found from beta-lactoglobulin. Because WE80BG containing ALPM was also found to show the strongest anti-hypertensive activity (-24.5 +/- 10 mm Hg) at 8 h after oral administration in SHR, WE80BG would be suitable for application to the development of a new food expected to have anti-hypertensive effects.
Collapse
Affiliation(s)
- M Murakami
- Laboratory of Animal Products Chemistry, Graduate School of Agricultural Science, Tohoku University, 1-1, Tsutsumidori - Amamiyamachi, Aoba-ku, Sendai 981-8555, Japan
| | | | | | | | | | | | | |
Collapse
|
99
|
Abstract
Hypertension is the major controllable risk factor associated with cardiovascular disease (CVD) events such as myocardial infarction, stroke, heart failure, and end-stage diabetes. A 5 mm Hg decrease in blood pressure has been equated with approximately 16% decrease in CVD. In the U.S. alone current annual antihypertensive drug costs are approximately dollars 15 billion. The renin-angiotensin-aldosterone system is a target for blood pressure control. Cleavage of angiotensinogen by renin produces angiotensin I which is subsequently hydrolyzed by angiotensin-I-converting enzyme (ACE) to angiotensin II (a potent vasoconstrictor). Various side effects are associated with the use of ACE inhibitory drugs in the control of blood pressure including hypotension, increased potassium levels, reduced renal function, cough, angioedema, skin rashes, and fetal abnormalities. Milk proteins, both caseins and whey proteins, are a rich source of ACE inhibitory peptides. Several studies in spontaneously hypertensive rats show that these casokinins and lactokinins can significantly reduce blood pressure. Furthermore, a limited number of human studies have associated milk protein-derived peptides with statistically significant hypotensive effects (i.e., lower systolic and diastolic pressures). The advent of effective milk protein based functional food ingredients/nutraceuticals for the prevention/control of blood pressure therefore has the potential to significantly reduce global healthcare cost.
Collapse
|
100
|
Ijäs H, Collin M, Finckenberg P, Pihlanto-Leppälä A, Korhonen H, Korpela R, Vapaatalo H, Nurminen ML. Antihypertensive opioid-like milk peptide α-lactorphin: lack of effect on behavioural tests in mice. Int Dairy J 2004. [DOI: 10.1016/j.idairyj.2003.08.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|