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Szczypka M, Lis M, Kuczkowski M, Bobrek K, Pawlak A, Zambrowicz A, Gaweł A, Obmińska-Mrukowicz B. Yolkin, a Polypeptide Complex from Egg Yolk, Affects Cytokine Levels and Leukocyte Populations in Broiler Chicken Blood and Lymphoid Organs after In Ovo Administration. Int J Mol Sci 2023; 24:17494. [PMID: 38139323 PMCID: PMC10743580 DOI: 10.3390/ijms242417494] [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: 11/16/2023] [Revised: 12/08/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023] Open
Abstract
Yolkin is a polypeptide complex isolated from hen egg yolk that exhibits immunomodulating properties. The aim of the present study was to determine whether in-ovo-delivered yolkin affects leukocyte populations and cytokine levels in broiler chickens. The experiment was carried out on eggs from Ross 308 broiler breeder birds. Yolkin was administered in ovo on the 18th day of incubation, once, at the following three doses: 1, 10, or 100 µg/egg. The immunological parameters were assessed in 1-, 7-, 14-, 21-, 28-, 35-, and 42-day-old birds kept under farming conditions and routinely vaccinated. The leukocyte populations were determined in the thymus, spleen, and blood. The cytokine (IL-1β, IL-2, IL-6, and IL-10) levels were determined in the plasma of the broiler chickens. Each experimental group included eight birds. The most pronounced effect of yolkin was an increase in the population of T cells, both CD4+ and CD8+, mainly in the blood. This effect on the lymphocyte subsets may be valuable regarding chicken immune responses, mainly against T-dependent antigens, during infection or after vaccination.
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Affiliation(s)
- Marianna Szczypka
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Norwida 31, 50-375 Wrocław, Poland; (M.L.); (A.P.); (B.O.-M.)
| | - Magdalena Lis
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Norwida 31, 50-375 Wrocław, Poland; (M.L.); (A.P.); (B.O.-M.)
| | - Maciej Kuczkowski
- Department of Epizootiology and Clinic of Birds and Exotic Animals, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Pl. Grunwaldzki 45, 50-366 Wrocław, Poland; (M.K.); (K.B.); (A.G.)
| | - Kamila Bobrek
- Department of Epizootiology and Clinic of Birds and Exotic Animals, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Pl. Grunwaldzki 45, 50-366 Wrocław, Poland; (M.K.); (K.B.); (A.G.)
| | - Aleksandra Pawlak
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Norwida 31, 50-375 Wrocław, Poland; (M.L.); (A.P.); (B.O.-M.)
| | - Aleksandra Zambrowicz
- Department of Functional Food Products Development, Faculty of Biotechnology and Food Science, Wrocław University of Environmental and Life Sciences, Chełmońskiego 37, 51-640 Wrocław, Poland;
| | - Andrzej Gaweł
- Department of Epizootiology and Clinic of Birds and Exotic Animals, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Pl. Grunwaldzki 45, 50-366 Wrocław, Poland; (M.K.); (K.B.); (A.G.)
| | - Bożena Obmińska-Mrukowicz
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Norwida 31, 50-375 Wrocław, Poland; (M.L.); (A.P.); (B.O.-M.)
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Zambrowicz A, Zabłocka A, Bednarz D, Bobak Ł. Importance for humans of recently discovered protein compounds - yolkin and yolk glycopeptide 40, present in the plasma of hen egg yolk. Poult Sci 2023; 102:102770. [PMID: 37244087 DOI: 10.1016/j.psj.2023.102770] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/20/2023] [Accepted: 04/28/2023] [Indexed: 05/29/2023] Open
Abstract
Vitellogenin (Vt) is considered the primary protein precursor of egg yolk, serving as a source of protein- and lipid-rich nutrients for the developing embryo. However, recent research has revealed that the functions of Vt and Vt-derived polypeptides, such as yolkin (Y) and yolk glycopeptide 40 (YGP40), extend beyond their nutritional roles as a source of amino acids. Emerging evidence has demonstrated that both Y and YGP40 possess immunomodulatory properties and can contribute to host immune defenses. Additionally, Y polypeptides have been shown to exhibit neuroprotective activity, participating in the modulation of neurons' survival and activity, inhibiting neurodegeneration processes, and improving cognitive functions in rats. These non-nutritional functions not only enhance our understanding of the physiological roles of these molecules during embryonic development but also offer a promising basis for the potential application of these proteins in human health.
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Affiliation(s)
- Aleksandra Zambrowicz
- Department of Functional Food Products Development, Wroclaw University of Environmental and Life Science, 51-640 Wrocław, Poland.
| | - Agnieszka Zabłocka
- Department of Microbiology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Science, 53-114 Wrocław, Poland
| | - Dominika Bednarz
- Department of Functional Food Products Development, Wroclaw University of Environmental and Life Science, 51-640 Wrocław, Poland
| | - Łukasz Bobak
- Department of Functional Food Products Development, Wroclaw University of Environmental and Life Science, 51-640 Wrocław, Poland
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Kazana W, Jakubczyk D, Siednienko J, Zambrowicz A, Macała J, Zabłocka A. Mechanism of Molecular Activity of Yolkin-a Polypeptide Complex Derived from Hen Egg Yolk-in PC12 Cells and Immortalized Hippocampal Precursor Cells H19-7. Mol Neurobiol 2023; 60:2819-2831. [PMID: 36735179 PMCID: PMC10039841 DOI: 10.1007/s12035-023-03246-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 01/24/2023] [Indexed: 02/04/2023]
Abstract
Food-derived bioactive peptides able to regulate neuronal function have been intensively searched and studied for their potential therapeutic application. Our previous study showed that a polypeptide complex yolkin, isolated from hen egg yolk as a fraction accompanying immunoglobulin Y (IgY), improved memory and cognitive functions in rats. However, the mechanism activated by the yolkin is not explained. The goal of the present study was to examine what molecular mechanism regulating brain-derived neurotrophic factor (BDNF) expression is activated by the yolkin complex, using in vitro models of PC12 cell line and fetal rat hippocampal cell line H19-7. It was shown that yolkin increased the proliferative activity of rat hippocampal precursor cells H19-7 cells and upregulated the expression/production of BDNF in a cyclic adenosine monophosphate (cAMP)-response element-binding protein (CREB)-dependent manner. Additionally the upregulation of carboxypeptidase E/neurotrophic factor-α1 (CPE/(NF-α1) expression was shown. It was also determined that upregulation of CREB phosphorylation by yolkin is dependent on cyclic adenosine monophosphate/protein kinase A (cAMP/PKA) and phosphoinositide 3-kinases/protein kinase B (PI3K/Akt) signaling pathway activation. Moreover, the impact of yolkin on the level of intracellular Ca2+, nitric oxide, and activation of extracellular signal-regulated kinases 1/2 (ERK 1/2 kinase) was excluded. These results emphasize that yolkin can act comprehensively and in many directions and may participate in the regulation of neurons' survival and activity. Therefore, it seems that the yolkin specimen can be used in the future as a safe, bioavailable, natural nutraceutical helping to improve the cognition of older people.
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Affiliation(s)
- Wioletta Kazana
- Lab. Microbiome Immunobiology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, R. Weigla 12, 53-114, Wrocław, Poland
| | - Dominika Jakubczyk
- Lab. Microbiome Immunobiology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, R. Weigla 12, 53-114, Wrocław, Poland
| | - Jakub Siednienko
- Bioengineering Research Group, Łukasiewicz Research Network-PORT Polish Center for Technology Development, 54-066, Wroclaw, Poland
| | - Aleksandra Zambrowicz
- Department of Functional Food Products Development, Faculty of Biotechnology and Food Sciences, Wrocław, University of Environmental and Life Sciences, Chełmońskiego 37, 51-630, Wrocław, Poland
| | - Józefa Macała
- Lab. Microbiome Immunobiology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, R. Weigla 12, 53-114, Wrocław, Poland
| | - Agnieszka Zabłocka
- Lab. Microbiome Immunobiology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, R. Weigla 12, 53-114, Wrocław, Poland.
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Szmyt A, Zabłocka A, Macała J, Chrzanowska J, Dąbrowska A. C-Terminal Fragment of Vitellogenin II, a Potential Yolkin Polypeptide Complex Precursor Protein-Heterologous Expression, Purification, and Immunoregulatory Activity. Int J Mol Sci 2021; 22:7223. [PMID: 34281277 PMCID: PMC8268165 DOI: 10.3390/ijms22137223] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/25/2021] [Accepted: 06/28/2021] [Indexed: 11/25/2022] Open
Abstract
The aim of this research was to analyze the heterologous expression, purification, and immunoregulatory activity of recombinant YGP40 (rYGP40), the potential precursor of the yolkin peptide complex. The ygp40 coding sequence was codon optimized, successfully expressed in the E. coli system, and purified from inclusion bodies with a yield of about 1.1 mg/L of culture. This study showed that the protein exhibits immunomodulatory activity, expressed by the stimulation of TNF-α and IL-10 production and nitric oxide induction at a level comparable to that of the natural yolkin peptide complex obtained by other authors from hen egg yolk. At the highest dose of 100 µg/mL, rYGP40 also caused the up-regulation of iNOS expression in murine bone marrow-derived macrophages (BMDM). Moreover, no cytotoxic effects of rYGP40 on the BMDM cell line were observed.
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Affiliation(s)
- Agnieszka Szmyt
- Department of Functional Food Products Development, Wroclaw University of Environmental and Life Science, 37 Chełmońskiego Str., 51-640 Wrocław, Poland; (A.S.); (J.C.)
| | - Agnieszka Zabłocka
- Department of Microbiology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Science, 12 Rudolf Weigl Str., 53-114 Wrocław, Poland; (A.Z.); (J.M.)
| | - Józefa Macała
- Department of Microbiology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Science, 12 Rudolf Weigl Str., 53-114 Wrocław, Poland; (A.Z.); (J.M.)
| | - Józefa Chrzanowska
- Department of Functional Food Products Development, Wroclaw University of Environmental and Life Science, 37 Chełmońskiego Str., 51-640 Wrocław, Poland; (A.S.); (J.C.)
| | - Anna Dąbrowska
- Department of Functional Food Products Development, Wroclaw University of Environmental and Life Science, 37 Chełmońskiego Str., 51-640 Wrocław, Poland; (A.S.); (J.C.)
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Zabłocka A, Bobak Ł, Macała J, Rymaszewska J, Kazana W, Zambrowicz A. Comparative Studies of Yolkin Preparations Isolated from Egg Yolks of Selected Bird Species. Chem Biodivers 2021; 18:e2100178. [PMID: 34085749 DOI: 10.1002/cbdv.202100178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 05/10/2021] [Indexed: 11/10/2022]
Abstract
The results of our research have proven that yolkin preparations isolated from eggs of different bird species show a high similarity in polypeptide composition. Despite the small differences in protein patterns, all of yolkin preparations showed also strong immunomodulatory activity, comparable with yolkin obtained previously from hen egg yolk. It can therefore be deducted that the presence of this polypeptide complex in the egg is not accidental and performs an important biological function for developing embryo.
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Affiliation(s)
- Agnieszka Zabłocka
- Laboratory of Microbiome Immunobiology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114, Wrocław, Poland
| | - Łukasz Bobak
- Department of Functional Food Products Development, Faculty of Biotechnology and Food Sciences, Wrocław University of Environmental and Life Sciences, Chełmońskiego 37, 51-630, Wrocław, Poland
| | - Józefa Macała
- Laboratory of Microbiome Immunobiology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114, Wrocław, Poland
| | - Joanna Rymaszewska
- Department of Psychiatry, Wrocław Medical University, Wybrzeże Pasteura 10, 50-367, Wrocław, Poland
| | - Wioletta Kazana
- Laboratory of Microbiome Immunobiology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114, Wrocław, Poland
| | - Aleksandra Zambrowicz
- Department of Functional Food Products Development, Faculty of Biotechnology and Food Sciences, Wrocław University of Environmental and Life Sciences, Chełmońskiego 37, 51-630, Wrocław, Poland
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Yolkin Isolated from Hen Egg Yolk as a Natural Immunoregulator, Activating Innate Immune Response in BMDM Macrophages. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:5731021. [PMID: 32509146 PMCID: PMC7245654 DOI: 10.1155/2020/5731021] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 04/22/2020] [Indexed: 02/06/2023]
Abstract
One of the goals of biomedical sciences is to search and identify natural compounds that are safe, have no side effects, and possess immunostimulatory activity. It has been proven that medicines of natural origin can be effective agents, supporting the therapy of many diseases, not only in the weakened immune system of the body but also in the prevention of many diseases in healthy people. It has been shown that yolkin, a polypeptide complex isolated from hen egg yolk as a fraction accompanying immunoglobulin Y (IgY), possesses potential biological activity. However, the mechanism of its action has not been explained. The objective of this investigation was to examine the molecular mechanisms of innate immune response, activated in response to yolkin, in murine bone marrow-derived macrophages (BMDM). It was shown that yolkin induced phosphorylation of extracellular signal-kinases (ERK1/2) and c-Jun N-terminal kinase (JNK) and upregulated expression and production of type I interferons, TNF-α (tumor necrosis factor α), and nitric oxide (NO), in BMDM cells. Using pharmacological inhibitors of ERK 1/2 and JNK kinases, we revealed that the JNK signaling cascade is required for yolkin-induced inducible NOS expression and upregulation of NO production in mouse macrophages. Using the TLR4-deficient BMDM cell line, we established that yolkin can activate macrophages in a TLR4-dependent manner. It was also shown that NO, TNF-α, and type I IFNs (α/β) produced by BMDM cells in response to yolkin triggered antiviral activity. These data indicate that yolkin affects the regulation of the immune system and antiviral response; therefore, it can be used as an effective immunostimulator of the innate immunity or as a supplement of the conventional therapy of immunodeficiency.
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Obmińska-Mrukowicz B, Szczypka M, Lis M, Pawlak A, Suszko-Pawłowska A, Sysak A, Zambrowicz A, Burster T, Kocięba M, Artym J, Zaczyńska E, Kochanowska I, Zimecki M. Effects of yolkin on the immune response of mice and its plausible mechanism of action. Immunol Lett 2020; 220:21-31. [PMID: 31954800 DOI: 10.1016/j.imlet.2020.01.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 09/02/2019] [Accepted: 01/13/2020] [Indexed: 10/25/2022]
Abstract
Yolkin is a product of proteolytic degradation of vitellogenin, a protein contained in eggs' yolk, with already described procognitive properties. Here, we investigated effects of yolkin on the humoral and cellular immune response in mice, phenotype of cells from lymphoid organs and function of innate immunity cells. In vitro studies included effects of yolkin on mitogen-induced thymocyte proliferation, percentage of CD19 cells in bone marrow cells culture, expression of signaling molecules in Jurkat cells, interleukin 2 receptor (IL-2R) subunits in WEHI 231 cells and susceptibility of these cells to anti-Ig-induced cell death. The results showed that repeatable i.p. injections of yolkin stimulated the humoral immune response to sheep red blood cells (SRBC) irrespective of the time of the treatment. On the other hand, yolkin inhibited contact sensitivity to oxazolone. Treatment of mice with yolkin diminished the percentage of double positive cells and increasing the content of single positive CD4+ and CD8+ cells in the thymus. At the same time an increase of percentage of CD19 + B cells in the spleen and mesenteric lymph nodes was observed. In addition, the protein, given i.p., diminished ex vivo ability to synthesize nitric oxide by resident, peritoneal macrophages, stimulated with lipopolisaccharide (LPS). In vitro studies showed that yolkin increased CD19+ cell content in bone marrow cell population. The protein also enhanced proliferation of thymocytes to concanavalin A and stimulated expression of MAP kinases in Jurkat cells. In WEHI 231 B cell line yolkin caused a loss of IL-2R gamma chain expression, correlated with an increased resistance of these cells to proapoptotic action of anti-Ig antibodies. In conclusion, this is a first demonstration of immunotropic properties of yolkin in in vitro and in vivo tests. The results provide evidence for induction of maturation and stimulatory signals in immature T and B cells by the protein, suggesting its potential role in the development of an embryo's immune system.
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Affiliation(s)
- Bożena Obmińska-Mrukowicz
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Environmental and Life Sciences, Wrocław, Poland
| | - Marianna Szczypka
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Environmental and Life Sciences, Wrocław, Poland
| | - Magdalena Lis
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Environmental and Life Sciences, Wrocław, Poland
| | - Aleksandra Pawlak
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Environmental and Life Sciences, Wrocław, Poland
| | - Agnieszka Suszko-Pawłowska
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Environmental and Life Sciences, Wrocław, Poland
| | - Angelika Sysak
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Environmental and Life Sciences, Wrocław, Poland
| | - Aleksandra Zambrowicz
- Department of Animal Products Technology and Quality Management, Faculty of Biotechnology and Food Sciences, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
| | - Timo Burster
- Biology Department, School of Science and Technology, Nazarbayev University, Kazakhstan
| | - Maja Kocięba
- Laboratory of Immunobiology, Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland
| | - Jolanta Artym
- Laboratory of Immunobiology, Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland
| | - Ewa Zaczyńska
- Laboratory of Immunobiology, Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland
| | - Iwona Kochanowska
- Laboratory of Immunobiology, Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland
| | - Michał Zimecki
- Laboratory of Immunobiology, Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland.
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Zambrowicz A, Zabłocka A, Sudoł M, Bobak Ł, Sosicka P, Trziszka T. The effect of carbohydrate moieties on immunoregulatory activity of yolkin polypeptides naturally occurring in egg yolk. Lebensm Wiss Technol 2018. [DOI: 10.1016/j.lwt.2017.09.046] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Zambrowicz A, Zabłocka A, Bobak Ł, Macała J, Janusz M, Polanowski A, Trziszka T. A simple and rapid method of isolation of active polypeptide complex, yolkin, from chicken egg yolk. Food Chem 2017; 230:705-711. [PMID: 28407970 DOI: 10.1016/j.foodchem.2017.03.101] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 03/10/2017] [Accepted: 03/17/2017] [Indexed: 12/16/2022]
Abstract
A large number of bioactive peptides isolated from natural sources are known to play important physiological roles in the human body. It is possible to use these as alternative therapy agents. One example is yolkin which can be useful as a food supplement, a natural therapeutic agent for preventing and treating cognitive disorders of various origins, preferably in patients with unsatisfactory responses to known therapies. A new simple method of isolation of yolkin based on precipitation with ethanol or acetone was developed. The best precipitation efficiency of both ethanol and acetone was achieved when stirred into the starting material to a final concentration of 70%. These methods preserved the ability of yolkin to stimulate human whole blood cells to release anti-inflammatory cytokines and neurotrophins. At first we indicated that yolkin displayed a potential neuroprotective effect by the ability to stimulate cells to produce pro-survival brain derived neurotrophic factor (BDNF).
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Affiliation(s)
- A Zambrowicz
- Department of Animal Products Technology and Quality Management, Faculty of Food Sciences, Wrocław University of Environmental and Life Sciences, Chełmońskiego 37, 51-630 Wrocław, Poland.
| | - A Zabłocka
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Immunochemistry, R. Weigla 12, 53-114 Wrocław, Poland
| | - Ł Bobak
- Department of Animal Products Technology and Quality Management, Faculty of Food Sciences, Wrocław University of Environmental and Life Sciences, Chełmońskiego 37, 51-630 Wrocław, Poland
| | - J Macała
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Immunochemistry, R. Weigla 12, 53-114 Wrocław, Poland
| | - M Janusz
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Immunochemistry, R. Weigla 12, 53-114 Wrocław, Poland
| | - A Polanowski
- Department of Animal Products Technology and Quality Management, Faculty of Food Sciences, Wrocław University of Environmental and Life Sciences, Chełmońskiego 37, 51-630 Wrocław, Poland
| | - T Trziszka
- Department of Animal Products Technology and Quality Management, Faculty of Food Sciences, Wrocław University of Environmental and Life Sciences, Chełmońskiego 37, 51-630 Wrocław, Poland
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Zorriehzah MJ, Tiwari R, Sachan S, Karthik K, Malik YS, Dadar M, Sarwar M, Sayab M, Dhama K. Avian Egg Yolk Antibodies (IgY) and their Potential Therapeutic
Applications for Countering Infectious Diseases of Fish and
Aquatic Animals. INT J PHARMACOL 2016. [DOI: 10.3923/ijp.2016.760.768] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Pro-Cognitive Properties of the Immunomodulatory Polypeptide Complex, Yolkin, from Chicken Egg Yolk and Colostrum-Derived Substances: Analyses Based on Animal Model of Age-Related Cognitive Deficits. Arch Immunol Ther Exp (Warsz) 2016; 64:425-34. [PMID: 26972875 PMCID: PMC5021734 DOI: 10.1007/s00005-016-0392-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 12/11/2015] [Indexed: 12/12/2022]
Abstract
The study aimed to assess the effect of the polypeptide Y complex (Yolkin), isolated from chicken egg yolk, on behavioural and cognitive functions. It also aimed to compare this activity with colostrum-derived substances (Colostrinin, Coloco), which have a confirmed impact on learning and memory. In the study, the effect of Yolkin, administered to rats of different ages, who performed various tasks involving spatial and episodic memory, motor functions and exploratory behavior, was assessed. The experiment was carried out in rats which were 6 and 12 months old. Two different doses of the studied specimens based on previous comparative studies and two different routes of administration (oral and retroperitoneal) were used. A series of behavioural tests were carried out, including an open field test, a novel object recognition test and a Morris water maze. They were used to evaluate the impact of the studied specimen on improving locomotor function and exploratory behaviour, preventing their decline and assess the functioning of episodic and spatial memory in aging rats. The administration of Yolkin gave distinct effects compared to colostrum-derived substances, although confirmed its suggested pro-cognitive action. Therefore, it may be used to enhance cognitive functions and inhibit the progression of dementia in the course of neurodegenerative disorders.
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