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Piekarska J, Madej JP, Gorczykowski M, Szczypka M. The Effects of Honeysuckle ( Lonicera caerulea L.) Berry Iridoid-Anthocyanin Extract on the Intestinal and Muscle Histopathology in Mice during Experimental Trichinellosis. Molecules 2023; 28:7067. [PMID: 37894546 PMCID: PMC10608903 DOI: 10.3390/molecules28207067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 10/09/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023] Open
Abstract
The aim of the study was to determine the effect of iridoid-anthocyanin extract from honeysuckle (Lonicera caerulea L.) (LC) berries on histopathological changes in the intestines and muscles during experimental trichinellosis in mice. The LC extract was administered to uninfected mice (LC group) and Trichinella-spiralis-infected mice (T+LC) orally at a dose of 2 g/kg bw, six times at 24 h intervals, from day 3 prior to infection to day 3 post-infection (dpi). Jejunum samples were collected on 5, 7, 14, and 21 dpi, and their histological assessment involved the villus height to crypt depth ratio (VH/CD), goblet cell (GC) number, and morphological changes. In the T. spiralis-infected muscles, the extent of inflammatory infiltration on the 14th and 21st dpi was assessed. LC in the infected mice restored the VH/CD ratio to control values on 14 dpi. A beneficial effect of the LC extract on the villus height was also observed 14 dpi in the LC and T+LC groups. No differences in the extent of inflammatory infiltration in the muscles between the T+LC and T groups were observed. In conclusion, the iridoid-anthocyanin extract from honeysuckle berry contributed to alleviating the symptoms of the intestinal phase of T. spiralis infection.
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Affiliation(s)
- Jolanta Piekarska
- Division of Parasitology, Department of Internal Medicine and Clinic of Horses, Dogs and Cats, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Norwida 31, 50-375 Wroclaw, Poland;
| | - Jan P. Madej
- Department of Immunology, Pathophysiology and Veterinary Preventive Medicine, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Norwida 31, 50-375 Wroclaw, Poland;
| | - Michał Gorczykowski
- Division of Parasitology, Department of Internal Medicine and Clinic of Horses, Dogs and Cats, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Norwida 31, 50-375 Wroclaw, Poland;
| | - Marianna Szczypka
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Norwida 31, 50-375 Wroclaw, Poland;
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Piekarska J, Szczypka M, Gorczykowski M, Sokół-Łętowska A, Kucharska AZ. Evaluation of Immunotropic Activity of Iridoid-Anthocyanin Extract of Honeysuckle Berries (Lonicera caerulea L.) in the Course of Experimental Trichinellosis in Mice. Molecules 2022; 27:molecules27061949. [PMID: 35335313 PMCID: PMC8954930 DOI: 10.3390/molecules27061949] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/11/2022] [Accepted: 03/15/2022] [Indexed: 02/04/2023] Open
Abstract
Our experiment determined the immunotropic activity of a natural, iridoid-anthocyanin extract from honeysuckle berry (Lonicera caerulea L.) (LC). The extract was administered to mice infected with Trichinella spiralis, orally at a dose of 2 g/kg bw, six times at 24 h intervals (from day 3 prior to the infection to day 3 post-infection (dpi) with T. spiralis. At 5, 7, 14, and 21 dpi, samples of blood, spleen, and mesenteric lymph nodes (MLN) were collected, and isolated lymphocytes were analyzed by flow cytometry. The splenocyte proliferation was estimated with MTT testing, and the intensity of intestinal and muscle infection was also studied. LC stimulated the local immune system by inducing lymphocyte proliferation in the spleen 7 dpi and altered the percentage and absolute count of B (CD19+) and T (CD3+, CD8+) cells 7, 14, and 21 dpi in the peripheral blood. LC extract affected the dynamics of expulsion of adult Trichinella from the intestines and prolonged the intestinal phase of the infection but did not change the number of larvae in the muscles. These results suggest that Lonicera caerulea L. fruit extract modulates murine cellular immune response during intestinal phase of T. spiralis infection but shows no antiparasitic activity.
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Affiliation(s)
- Jolanta Piekarska
- Division of Parasitology, Department of Internal Medicine and Clinic of Horses, Dogs and Cats, Wrocław University of Environmental and Life Sciences, Norwida 31, 50-375 Wrocław, Poland;
- Correspondence:
| | - Marianna Szczypka
- Department of Pharmacology and Toxicology, Wrocław University of Environmental and Life Sciences, Norwida 31, 50-375 Wrocław, Poland;
| | - Michał Gorczykowski
- Division of Parasitology, Department of Internal Medicine and Clinic of Horses, Dogs and Cats, Wrocław University of Environmental and Life Sciences, Norwida 31, 50-375 Wrocław, Poland;
| | - Anna Sokół-Łętowska
- Department of Fruit, Vegetable and Plant Nutraceutical Technology, Wrocław University of Environmental and Life Sciences, Chełmońskiego 37, 51-630 Wrocław, Poland; (A.S.-Ł.); (A.Z.K.)
| | - Alicja Z. Kucharska
- Department of Fruit, Vegetable and Plant Nutraceutical Technology, Wrocław University of Environmental and Life Sciences, Chełmońskiego 37, 51-630 Wrocław, Poland; (A.S.-Ł.); (A.Z.K.)
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Piekara-Stępińska A, Piekarska J, Gorczykowski M. Cryptosporidium spp. in dogs and cats in Poland. Ann Agric Environ Med 2021; 28:345-347. [PMID: 34184521 DOI: 10.26444/aaem/120467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
INTRODUCTION Cryptosporidium spp. are common protozoan parasites of animals and humans. Due to their zoonotic potential it is important to know their species and prevalence in dogs and cats. OBJECTIVE The aim of the study was to determine the occurrence and molecular characteristics of Cryptosporidium spp. in dogs and cats in Poland. MATERIAL AND METHODS A total of 365 faecal samples (264 dogs and 101 cats) collected from animals living in Poland were analyzed using the Ziehl-Neelsen staining method and genus-specific PCR assay to amplify the Cryptosporidium 18S rRNA gene. RESULTS Cryptosporidium were found in 11 out of the 365 examined stool samples (3%). PCR analysis identified Cryptosporidium in 9 out of 264 canine stool samples (3.4%) and 2 out of 101 feline specimens (2%). DNA sequencing confirmed the presence of C. canis and C. parvum in dogs and C. felis in cats. CONCLUSIONS This is the first molecular characterization of Cryptosporidium spp. infection in dogs and cats in Poland.
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Affiliation(s)
- Agnieszka Piekara-Stępińska
- Department of Internal Medicine and Clinic of Diseases of Horses, Dogs and Cats, Division of Parasitology, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Poland
| | - Jolanta Piekarska
- Department of Internal Medicine and Clinic of Diseases of Horses, Dogs and Cats, Division of Parasitology, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Poland
| | - Michał Gorczykowski
- Department of Internal Medicine and Clinic of Diseases of Horses, Dogs and Cats, Division of Parasitology, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Poland
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Szczypka M, Suszko-Pawłowska A, Kuczkowski M, Gorczykowski M, Lis M, Kowalczyk A, Łukaszewicz E, Poradowski D, Zbyryt I, Bednarczyk M, Stefaniak T. Effects of Selected Prebiotics or Synbiotics Administered in ovo on Lymphocyte Subsets in Bursa of the Fabricius, Thymus, and Spleen in Non-Immunized and Immunized Chicken Broilers. Animals (Basel) 2021; 11:ani11020476. [PMID: 33670391 PMCID: PMC7917990 DOI: 10.3390/ani11020476] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 02/05/2021] [Accepted: 02/07/2021] [Indexed: 01/05/2023] Open
Abstract
Simple Summary Probiotics, prebiotics, and synbiotics may be used as feed additives instead of banned antibiotic-based growth promoters. These bioactive compounds applied in ovo have beneficial effects on intestinal bifidobacteria, decrease the number of detrimental bacteria in the gut, stimulate the development of gut-associated lymphoid tissues (GALT), and modulate the development of lymphoid organs. The aim of our study was to determine whether the specific in ovo-delivered prebiotics and synbiotics affected the lymphocyte subsets of the bursa of the Fabricius, thymus, and spleen in non-immunized chicken broilers and in birds immunized with T-dependent (sheep red blood cells—SRBC) and T-independent (dextran—DEX) antigens. This study demonstrated that in ovo administration of prebiotics and synbiotics is a promising approach for enhancing chicken immune system functions. We conclude that a combination of inulin and Lactococcus lactis subsp. lactis IBB SL1 was the most effective of the tested compounds in the stimulation of the chicken immune system. Abstract The effects of in ovo-delivered prebiotics and synbiotics on the lymphocyte subsets of the lymphoid organs in non-immunized 7-day-old broiler chickens and in non-immunized, sheep red blood cells (SRBC)-immunized, and dextran (DEX)-immunized 21- and 35-day-old birds were studied. The substances were injected on the 12th day of egg incubation: Prebiotic1 group (Pre1) with a solution of inulin, Prebiotic2 group (Pre2) with a solution of Bi2tos (non-digestive transgalacto-oligosaccharides), Synbiotic1 group (Syn1) with inulin and Lactococcus lactis subsp. lactis IBB SL1, and Synbiotic2 group (Syn2) with Bi2tos and Lactococcus lactis subsp. cremoris IBB SC1. In 7-day-old chicks, a decrease in T splenocytes was noticed in all groups. The most pronounced effect in 21- and 35-day-old birds was an increase in TCRγδ+ cells in Syn1 and Syn2 groups. A decrease in bursal B cells was observed in DEX-immunized Pre1 group (21-day-old birds), and in the Syn1 group in non-immunized and SRBC-immunized 35-day-old birds. An increase in double-positive lymphocytes was observed in Pre1 (35-day-old birds) and Pre2 (immunized 21-day-old birds) groups. In Pre1 and Syn1 groups (21- and 35-day-old), an increase in B splenocytes and a decrease in T splenocytes were observed. We concluded that Syn1 was the most effective in the stimulation of the chicken immune system.
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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; (A.S.-P.); (M.L.)
- Correspondence: ; Tel.: +48-71-320-5215
| | - Agnieszka Suszko-Pawłowska
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Norwida 31, 50-375 Wrocław, Poland; (A.S.-P.); (M.L.)
| | - Maciej Kuczkowski
- Department of Epizootiology and Clinic of Bird and Exotic Animals, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Pl. Grunwaldzki 45, 50-366 Wrocław, Poland; (M.K.); (I.Z.)
| | - Michał Gorczykowski
- Department of Internal Medicine and Clinic of Diseases of Horses, Dogs and Cats, Division of Parasitology, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Norwida 31, 50-375 Wrocław, Poland;
| | - Magdalena Lis
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Norwida 31, 50-375 Wrocław, Poland; (A.S.-P.); (M.L.)
| | - Artur Kowalczyk
- Institute of Animal Breeding, Division of Poultry Breeding, Wrocław University of Environmental and Life Sciences, Chełmońskiego 38c, 51-630 Wrocław, Poland; (A.K.); (E.Ł.)
| | - Ewa Łukaszewicz
- Institute of Animal Breeding, Division of Poultry Breeding, Wrocław University of Environmental and Life Sciences, Chełmońskiego 38c, 51-630 Wrocław, Poland; (A.K.); (E.Ł.)
| | - Dominik Poradowski
- Department of Animal Physiology and Biostructure, Division of Animal Anatomy, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Kożuchowska 1, 51-631 Wrocław, Poland;
| | - Iwona Zbyryt
- Department of Epizootiology and Clinic of Bird and Exotic Animals, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Pl. Grunwaldzki 45, 50-366 Wrocław, Poland; (M.K.); (I.Z.)
| | - Marek Bednarczyk
- Department of Animal Biotechnology and Genetics, UTP University of Science and Technology, Mazowiecka 28, 85-084 Bydgoszcz, Poland;
| | - Tadeusz Stefaniak
- Department of Immunology, Pathophysiology and Veterinary Preventive Medicine, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Norwida 31, 50-375 Wrocław, Poland;
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Piekarska J, Szczypka M, Gorczykowski M, Króliczewska B, Miśta D, Oszmiański J. Effect of aqueous extract from Scutellaria baicalensis Georgi roots on CD4+ and CD8+ T cell responses during experimental infection with Trichinella spiralis in mice. Pol J Vet Sci 2021; 23:501-510. [PMID: 33480495 DOI: 10.24425/pjvs.2020.134699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The aim of this study was to investigate the effect of aqueous extract from Scutellaria baicalensis Georgi roots (SB) on blood parameters and immune response during an experimental trichinellosis. A total of 60 mice infected with 200 Trichinella spiralis larvae were assigned into two groups. One of them served as a control and the second received SB extract orally from day 5 before infection to day 28 after infection (dpi). Blood was sampled at 7, 14, 21 dpi. Lymphocytes obtained from the spleen and mesenteric lymph nodes (MLN) at 7, 14, 21, and 28 dpi were counted, CD4+ and CD8+ subpopulations were analyzed by flow cytometry, and lymphocyte proliferation was estimated with colorimetric (MTT) assay. The intensity of intestinal and muscle invasion was also studied. SB caused a remarkable elevation of banded neutrophils in the blood at 7 dpi. SB increased ConA-stimulated splenocyte proliferation and CD4+ and CD8+ splenocyte subsets at 14 and 21 dpi, whereas MLN lymphocyte subset stimulation involved only CD4+ at 14 dpi. After administration of SB a downward trend in the number of T. spiralis larvae in the muscle was observed. These results suggest that Scutellaria baicalensis root extract stimulates murine cellular immune response during intestinal phase of T. spiralis infection.
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Affiliation(s)
- J Piekarska
- Wroclaw University of Environmental and Life Sciences, Department of Internal Medicine and Clinic of Horses, Dogs and Cats, Division of Parasitology, Norwida 31, 50-375 Wroclaw, Poland
| | - M Szczypka
- Wroclaw University of Environmental and Life Sciences, Department of Pharmacology and Toxicology, Norwida 31, 50-375 Wroclaw, Poland
| | - M Gorczykowski
- Wroclaw University of Environmental and Life Sciences, Department of Internal Medicine and Clinic of Horses, Dogs and Cats, Division of Parasitology, Norwida 31, 50-375 Wroclaw, Poland
| | - B Króliczewska
- Wroclaw University of Environmental and Life Sciences, Department of Animal Physiology and Biostructure, Norwida 31, 50-375 Wroclaw, Poland
| | - D Miśta
- Wroclaw University of Environmental and Life Sciences, Department of Animal Physiology and Biostructure, Norwida 31, 50-375 Wroclaw, Poland
| | - J Oszmiański
- Wroclaw University of Environmental and Life Sciences, Department of Fruit, Vegetable and Plant Nutraceutical Technology, Chełmońskiego 37, 51-630 Wroclaw, Poland
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Bajzert J, Gorczykowski M, Stefaniak T. Evaluation of the protective effect of immunization spf DBA/2J mice with selected bacterial, recombinant Hsp60 antigens during Salmonella Enteritidis challenge. Microb Pathog 2019; 128:206-214. [DOI: 10.1016/j.micpath.2018.12.045] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 12/21/2018] [Accepted: 12/26/2018] [Indexed: 11/24/2022]
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Piekara-Stępińska A, Gorczykowski M, Piekarska J. Suitability of selected culture media for Blastocystis spp. Pol J Vet Sci 2019; 21:815-817. [PMID: 30605290 DOI: 10.24425/pjvs.2018.125593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Blastocystis is a common enteric protozoan of humans and various species of animals. Culture and microscopic examination of fecal samples is the conventional method for identifying four major forms of Blastocystis (vacuolar, granular, non-vacuolar or cystic). In this article, we com- pared eight liquid media for cultivation of Blastocystis spp. Study material included fecal samples from clinically healthy pigs. Significant differences in the growth of Blastocystis on individual media were observed.
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Affiliation(s)
- A Piekara-Stępińska
- Department of Internal Medicine and Clinic of Diseases of Horses, Dogs and Cats. Division of Parasitology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Norwida 31, 50-375 Wroclaw, Poland
| | - M Gorczykowski
- Department of Internal Medicine and Clinic of Diseases of Horses, Dogs and Cats. Division of Parasitology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Norwida 31, 50-375 Wroclaw, Poland
| | - J Piekarska
- Department of Internal Medicine and Clinic of Diseases of Horses, Dogs and Cats. Division of Parasitology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Norwida 31, 50-375 Wroclaw, Poland
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Walski T, Drohomirecka A, Bujok J, Czerski A, Wąż G, Trochanowska-Pauk N, Gorczykowski M, Cichoń R, Komorowska M. Low-Level Light Therapy Protects Red Blood Cells Against Oxidative Stress and Hemolysis During Extracorporeal Circulation. Front Physiol 2018; 9:647. [PMID: 29904353 PMCID: PMC5991292 DOI: 10.3389/fphys.2018.00647] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 05/11/2018] [Indexed: 12/21/2022] Open
Abstract
Aim: An activation of non-specific inflammatory response, coagulation disorder, and blood morphotic elements damage are the main side effects of the extracorporeal circulation (ECC). Red-to-near-infrared radiation (R/NIR) is thought to be capable of stabilizing red blood cell (RBC) membrane through increasing its resistance to destructive factors. We focused on the development of a method using low-level light therapy (LLLT) in the spectral range of R/NIR which could reduce blood trauma caused by the heart-lung machine during surgery. Methods: R/NIR emitter was adjusted in terms of geometry and optics to ECC circuit. The method of extracorporeal blood photobiomodulation was tested during in vivo experiments in an animal, porcine model (1 h of ECC plus 23 h of animal observation). A total of 24 sows weighing 90-100 kg were divided into two equal groups: control one and LLLT. Blood samples were taken during the experiment to determine changes in blood morphology [RBC and white blood cell (WBC) counts, hemoglobin (Hgb)], indicators of hemolysis [plasma-free hemoglobin (PFHgb), serum bilirubin concentration, serum lactate dehydrogenase (LDH) activity], and oxidative stress markers [thiobarbituric acid reactive substances (TBARS) concentration, total antioxidant capacity (TAC)]. Results: In the control group, a rapid systemic decrease in WBC count during ECC was accompanied by a significant increase in RBC membrane lipids peroxidation, while in the LLLT group the number of WBC and TBARS concentration both remained relatively constant, indicating limitation of the inflammatory process. These results were consistent with the change in the hemolysis markers like PFHgb, LDH, and serum bilirubin concentration, which were significantly reduced in LLLT group. No differences in TAC, RBC count, and Hgb concentration were detected. Conclusion: We presented the applicability of the LLLT with R/NIR radiation to blood trauma reduction during ECC.
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Affiliation(s)
- Tomasz Walski
- Department of Biomedical Engineering, Faculty of Fundamental Problems of Technology, Wrocław University of Science and Technology, Wrocław, Poland
- Regional Specialist Hospital in Wrocław, Research and Development Centre, Wrocław, Poland
| | - Anna Drohomirecka
- Regional Specialist Hospital in Wrocław, Research and Development Centre, Wrocław, Poland
- Institute of Cardiology, Warsaw, Poland
| | - Jolanta Bujok
- Regional Specialist Hospital in Wrocław, Research and Development Centre, Wrocław, Poland
- Department of Animal Physiology and Biostructure, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
| | - Albert Czerski
- Regional Specialist Hospital in Wrocław, Research and Development Centre, Wrocław, Poland
- Department of Animal Physiology and Biostructure, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
| | - Grzegorz Wąż
- Regional Specialist Hospital in Wrocław, Research and Development Centre, Wrocław, Poland
- Medinet Heart Center Ltd., Wrocław, Poland
| | - Natalia Trochanowska-Pauk
- Department of Biomedical Engineering, Faculty of Fundamental Problems of Technology, Wrocław University of Science and Technology, Wrocław, Poland
- Regional Specialist Hospital in Wrocław, Research and Development Centre, Wrocław, Poland
| | - Michał Gorczykowski
- Department of Internal Medicine and Clinic of Diseases of Horses, Dogs and Cats, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
| | | | - Małgorzata Komorowska
- Department of Biomedical Engineering, Faculty of Fundamental Problems of Technology, Wrocław University of Science and Technology, Wrocław, Poland
- Regional Specialist Hospital in Wrocław, Research and Development Centre, Wrocław, Poland
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Piekarska J, Szczypka M, Kucharska AZ, Gorczykowski M. Effects of iridoid-anthocyanin extract of Cornus mas L. on hematological parameters, population and proliferation of lymphocytes during experimental infection of mice with Trichinella spiralis. Exp Parasitol 2018; 188:58-64. [DOI: 10.1016/j.exppara.2018.03.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 03/14/2018] [Accepted: 03/26/2018] [Indexed: 10/17/2022]
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Bajzert J, Gorczykowski M, Galli J, Stefaniak T. The evaluation of immunogenic impact of selected bacterial, recombinant Hsp60 antigens in DBA/2J mice. Microb Pathog 2017; 115:100-111. [PMID: 29246635 DOI: 10.1016/j.micpath.2017.12.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 10/31/2017] [Accepted: 12/01/2017] [Indexed: 01/21/2023]
Abstract
Heat Shock Proteins (HSP) are highly conserved proteins that are widely spread throughout all organisms. They function in the cytoplasm as chaperones; however, they could be expressed on the cell surface. It has been shown that Hsp60 obtained from gram-negative bacteria are able to stimulate cells of the acquired and innate immune system. The aim of this study was the evaluation of the immunogenic properties of recombinant Hsp60 proteins derived from four common pathogenic bacteria: Escherichia coli, Histophilus somni, Pasteurella multocida and Salmonella Enteritidis. The analysis of the humoral immune response in DBA/2J mice hyperimmunized with selected rHsp60 revealed high levels of IgG rHsp60-antibody with the predominance of the IgG1 subclass, in the reaction with both homologous and heterologous antigens. The presence of IgG2a and IgG2b was also observed; however, no antibodies of subclass IgG3 were detected. The comparison of plasma IgG antibody reactivity of mice immunized with two different doses of rHsp60 (10/20 μg) showed that the lower dose was sufficient to induce a strong humoral response. The reactivity of the IgG rHsp60-antibody with whole bacterial cells showed a significantly higher reaction with H. somni compared with other pathogens. It was demonstrated that the addition of all rHsp60 with polymyxin B to the culture medium stimulated splenocytes isolated from hyperimmunized mice to release IL-1β and IL-6. As a strong stimulator of the immune system, bacterial-origin Hsp60 seems to be an interesting potential component of subunit vaccines aimed at the development of protection for animals during infections caused by gram-negative bacteria.
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Affiliation(s)
- Joanna Bajzert
- Department of Immunology, Pathophysiology and Veterinary Preventive Medicine, Wroclaw University of Environmental and Life Sciences, Poland.
| | - Michał Gorczykowski
- Department of Internal Medicine and Clinic of Diseases of Horses, Dogs and Cats, Wroclaw University of Environmental and Life Sciences, Poland
| | - Józef Galli
- Department of Immunology, Pathophysiology and Veterinary Preventive Medicine, Wroclaw University of Environmental and Life Sciences, Poland
| | - Tadeusz Stefaniak
- Department of Immunology, Pathophysiology and Veterinary Preventive Medicine, Wroclaw University of Environmental and Life Sciences, Poland
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Piekarska J, Kicia M, Wesołowska M, Kopacz Ż, Gorczykowski M, Szczepankiewicz B, Kváč M, Sak B. Zoonotic microsporidia in dogs and cats in Poland. Vet Parasitol 2017; 246:108-111. [PMID: 28969771 DOI: 10.1016/j.vetpar.2017.09.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 09/11/2017] [Accepted: 09/12/2017] [Indexed: 12/30/2022]
Abstract
This study investigated the prevalence, genetic diversity, and zoonotic concerns of microsporidia in household dogs and cats in Poland. A total of 126 (82 dogs and 44 cats) fecal specimens were analyzed for the presence of specific DNA of Enterocytozoon bieneusi and Encephalitozoon spp. using a nested PCR protocol amplifying the internal transcribed spacer region of the rRNA gene. Microsporidia were found in 10 (7.9%) out of the 126 examined stool samples. Of the 82 dogs, 4 (4.9%) and 2 (2.4%) were positive for E. bieneusi (genotypes D and PtEbIX) and Encephalitozoon cuniculi genotype II, respectively. Of the 44 cats, 4 (9.1%) were positive for E. bieneusi (genotypes PtEbIX and eb52). Additionally, one cat (2.3%) was concurrently infected with E. bieneusi (PtEbIX) and E. cuniculi (genotype II). Considering that all detected microsporidia in dogs and cats have been previously associated with human microsporidiosis, companion animals may be a potential source of microsporidia infections in humans.
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Affiliation(s)
- Jolanta Piekarska
- Department of Internal Medicine and Clinic of Diseases of Horses, Dogs and Cats, Division of Parasitology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Norwida 31, 50-375, Wroclaw, Poland.
| | - Marta Kicia
- Department of Biology and Medical Parasitology, Wroclaw Medical University, Mikulicza-Radeckiego 9, 50-367, Wroclaw, Poland
| | - Maria Wesołowska
- Department of Biology and Medical Parasitology, Wroclaw Medical University, Mikulicza-Radeckiego 9, 50-367, Wroclaw, Poland
| | - Żaneta Kopacz
- Department of Biology and Medical Parasitology, Wroclaw Medical University, Mikulicza-Radeckiego 9, 50-367, Wroclaw, Poland
| | - Michał Gorczykowski
- Department of Internal Medicine and Clinic of Diseases of Horses, Dogs and Cats, Division of Parasitology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Norwida 31, 50-375, Wroclaw, Poland
| | - Barbara Szczepankiewicz
- Department of Internal Medicine and Clinic of Diseases of Horses, Dogs and Cats, Division of Parasitology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Norwida 31, 50-375, Wroclaw, Poland
| | - Martin Kváč
- Institute of Parasitology, Biology Centre of the AS CR, Branišovská 31, České Budějovice, 37005, Czech Republic; Faculty of Agriculture, University of South Bohemia in České Budějovice, Branišovská 31, České Budějovice, 37005, Czech Republic
| | - Bohumil Sak
- Institute of Parasitology, Biology Centre of the AS CR, Branišovská 31, České Budějovice, 37005, Czech Republic
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Houszka M, Piekarska J, Podkowik M, Gorczykowski M, Bania J. Morphology and molecular study of Fascioloides magna – a growing threat to cervids (Cervidae) in Poland. J Vet Res 2016. [DOI: 10.1515/jvetres-2016-0065] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Abstract
Introduction: The giant liver fluke, Fascioloides magna, has spread across Europe over the years posing a serious threat to the Polish cervid population. Material and Methods: Macroscopic and histopathological studies of the liver of 22 roe deer (Capreolus capreolus), 10 red deer (Cervus elaphus), and 6 fallow deer (Dama dama) were performed. Species determination of the recovered liver flukes and eggs was performed by PCR protocol amplifying fragments of ribosomal DNA (ITS2), according to a standard method. Results: The presence of F. magna was confirmed in three (13.6%) roe deer, seven (70.0%) red deer, and two (33.3%) fallow deer. The fluke eggs were found only in the stools of five red deer and one fallow deer. Conclusion: This study presents detailed pathological and histopathological changes in the liver of wild Polish cervids, including roe deer, which were subjected to such study for the first time. The hepatic lesions typical for different stages of liver cirrhosis varied depending on the host species and stage of the disease.
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Affiliation(s)
- Marek Houszka
- Department of Pathology, Wroclaw University of Environmental and Life Sciences, 50-375 Wroclaw, Poland
| | - Jolanta Piekarska
- Department of Internal Medicine and Clinic of Diseases of Horses, Dogs, and Cats. Division of Parasitology, Wroclaw University of Environmental and Life Sciences, 50-375 Wroclaw, Poland
| | - Magdalena Podkowik
- Department of Food Hygiene and Consumer Health Protection, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, 50-375 Wroclaw, Poland
| | - Michał Gorczykowski
- Department of Internal Medicine and Clinic of Diseases of Horses, Dogs, and Cats. Division of Parasitology, Wroclaw University of Environmental and Life Sciences, 50-375 Wroclaw, Poland
| | - Jacek Bania
- Department of Food Hygiene and Consumer Health Protection, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, 50-375 Wroclaw, Poland
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Piekarska J, Bajzert J, Gorczykowski M, Kantyka M, Podkowik M. Molecular identification of Giardia duodenalis isolates from domestic dogs and cats in Wroclaw, Poland. Ann Agric Environ Med 2016; 23:410-415. [PMID: 27660859 DOI: 10.5604/12321966.1219178] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
INTRODUCTION Giardia duodenalis (G. intestinalis) is a common protozoan causing gastrointestinal disorders in many species of mammals. The genus of Giardia has high molecular diversity. Dogs and cats, in addition to their typical infection with assemblages C, D and F, may be a reservoir of zoonotic assemblages (A and B). OBJECTIVE The aim of this study was a genetic characteristic of Giardia isolates of dogs and cats from the area of Wroclaw (Poland). MATERIALS AND METHOD A total of 128 and 33 faecal samples from dogs and cats, respectively, were analyzed by routine coprological methods. The animals were diagnosed on the presence of G. duodenalis antigens in faeces soluble with the use of SNAP Giardia (IDEXX Laboratories) immunosorbent assay. 27 DNA isolates of Giardia were subjected to molecular identification (PCR-RFLP). RESULTS AND CONCLUSIONS The prevalence of G. duodenalis was 21.1% (27/128) in dogs and 15.1% (5/33) in cats. In dogs, C assemblage was present in 18 (81%) positive stool samples, D assemblage in 2 (9%) samples, B assemblage present in one (4.5%), and mixed assemblages (C and D) occurred in one (4.5%) sample. F assemblage was found in 4 (80%) cats' positive stool samples and A assemblage occurred in one case (20%). Confirmation of the presence of A and B zoonotic assemblages suggests that infected pets can be a threat to human health. This study describes for the first time the presence of mixed infections within host-specific C and D assemblages in dogs in Poland.
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Affiliation(s)
- Jolanta Piekarska
- Department of Internal Medicine and Clinic of Diseases of Horses, Dogs and Cats, Division of Parasitology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Poland
| | - Joanna Bajzert
- Department of Immunology, Pathophysiology and Veterinary Preventive Medicine, Division of Immunology and Veterinary Preventive Medicine, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Poland
| | - Michał Gorczykowski
- Department of Internal Medicine and Clinic of Diseases of Horses, Dogs and Cats, Division of Parasitology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Poland
| | - Magdalena Kantyka
- Department of Internal Medicine and Clinic of Diseases of Horses, Dogs and Cats, Division of Parasitology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Poland
| | - Magdalena Podkowik
- Department of Food Hygiene and Consumer Health Protection, Division of Food Microbiology and Processing Hygiene, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Poland
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Piekarska J, Płoneczka-Janeczko K, Kantyka M, Kuczaj M, Gorczykowski M, Janeczko K. Gastrointestinal nematodes in grazing dairy cattle from small and medium-sized farms in southern Poland. Vet Parasitol 2013; 198:250-3. [DOI: 10.1016/j.vetpar.2013.07.039] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2013] [Revised: 07/25/2013] [Accepted: 07/26/2013] [Indexed: 11/24/2022]
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Rypula K, Porowski M, Kaba J, Gorczykowski M, Deniz A. Effect of isosporiasis prevention with toltrazuril on long-term pig performance. ScientificWorldJournal 2012; 2012:486324. [PMID: 22547982 PMCID: PMC3322557 DOI: 10.1100/2012/486324] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2011] [Accepted: 11/16/2011] [Indexed: 11/17/2022] Open
Abstract
The efficacy of toltrazuril treatment was assessed in two experiments in Polish swine herds. Experiment 1 included a toltrazuril treatment group, Group A (n = 410), and untreated control, Group B (n = 386). Time to sale in Group A was 108 days versus 120 days for Group B, with average body weights at sale of 114.2 kg and 108.8 kg, respectively (P < 0.05). In experiment 2, the health status and body weight gain of 238 piglets treated with toltrazuril (Group D) were compared to 235 untreated piglets (Group K). A similar difference was observed in average body weights of slaughtered animals, being on average 104 kg in Group D and 101 kg in Group K (P < 0.01). Animals from Group D were slaughtered 5 days earlier than animals from Group K (day 166 versus day 171). Data from clinical trials suggest treatment of coccidiosis with toltrazuril offering potential for improved animal welfare and yields, however this has remained unproven in field conditions in large swine production facilities. The present study confirms the efficacy of toltrazuril treatment when used in the field and the subsequent positive impact on time to weaning, time to market, and on weight gain at all time points.
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Affiliation(s)
- K Rypula
- Division of Infectious Diseases and Veterinary Administration, Department of Epizootiology with Clinic of Birds and Exotic Animals, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Grunwaldzki Square 45, 50-366 Wrocław, Poland.
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Piekarska J, Kuczaj M, Wereszczyńska M, Gorczykowski M, Janeczko K, Płoneczka-Janeczko K. Occurrence of tapeworms of the family Anoplocephalidae in herds of dairy cattle in Lesser Poland and in Lower Silesia, Poland. Ann Parasitol 2012; 58:97-99. [PMID: 25165761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This study was performed to determine the tapeworm infection of grazing cattle in 11 dairy herds in Lower Silesia and Lesser Poland (Galicia). Rectal faecal samples were examined microscopically for tapeworm eggs by Willis-Shlaaf's flotation, Telemann's sedimentation (for fatty stools) and decantation method. Out of 182 cattle, 10 (5.5%) were found to be infected with tapeworms. The prevalence in 5 of 11 examined herds varied from 15.5 to 30.5% and was highest for animal being in the first lactation. Tapeworm eggs were detected in animals being in the first and second lactation (about three- to four-years-old cows). All the qualitative methods were effective in the diagnosis of tapeworm infection in cattle.
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Affiliation(s)
- Jolanta Piekarska
- Division of Parasitology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, 31 Norwida Street, 50-375 Wroclaw, Poland
| | - Marian Kuczaj
- Institute of Animal Breeding, Faculty of Biology and Animal Breeding, Wroclaw University of Environmental and Life Sciences, 38 C Chełmońskiego Street, Wroclaw, Poland
| | - Magdalena Wereszczyńska
- Division of Parasitology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, 31 Norwida Street, 50-375 Wroclaw, Poland
| | - Michał Gorczykowski
- Division of Parasitology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, 31 Norwida Street, 50-375 Wroclaw, Poland
| | - Krzysztof Janeczko
- Department of Reproduction and Clinic for Farm Animals, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, 49 Grunwaldzki Square, 50-366 Wroclaw, Poland
| | - Katarzyna Płoneczka-Janeczko
- Department of Epizootiology with Clinic of Birds and Exotic Animals, Wroclaw University of Environmental and Life Sciences, 45 Grunwaldzki Square, 50-366 Wrocław, Poland
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Piekarska J, Miśta D, Houszka M, Króliczewska B, Zawadzki W, Gorczykowski M. Trichinella spiralis: The influence of short chain fatty acids on the proliferation of lymphocytes, the goblet cell count and apoptosis in the mouse intestine. Exp Parasitol 2011; 128:419-26. [DOI: 10.1016/j.exppara.2011.05.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2011] [Accepted: 05/17/2011] [Indexed: 01/31/2023]
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Piekarska J, Szczypka M, Michalski A, Obmińska-Mrukowicz B, Gorczykowski M. The effect of immunomodulating drugs on the percentage of apoptotic and necrotic lymphocytes in inflammatory infiltrations in the muscle tissue of mice infected with Trichinella spiralis. Pol J Vet Sci 2010; 13:233-240. [PMID: 20731176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
In order to determine the effect of apoptosis and necrosis on the intensity of the muscular phase of infection by Trichinella spiralis, male CFW mice were orally infected with T. spiralis larvae and treated with some immunomodulating drugs: calf thymus extract (TFX), lipopolysaccharide from Escherichia coli (LPS), and dexametasone (DEX). Treatment with TFX increased the proportion of apoptotic lymphocytes and decreased the proportion of necrotic lymphocytes from 14 to 60 days after infection in mice infected with T. spiralis. Treatment with LPS increased proportions of both apoptotic and necrotic lymphocytes from 21 to 60 days after infection, especially at 28 days after infection. Treatment with DEX increased the proportion of apoptotic lymphocytes only at 28 days after infection, and significantly increased the proportion of necrotic lymphocytes at 21 days after infection. Parasite load in the affected muscle tissue was significantly lower than the control in mice treated with TFX, not significantly different from the control in mice treated with LPS, and significantly higher than the control in mice treated with DEX. The results of the study suggest that the parasite made an effort to reduce the effectivity of the host immune response in order to ensure its own survival.
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Affiliation(s)
- J Piekarska
- Department of Internal and Parasitic Diseases, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Grunwaldzki 47, 50-366 Wroclaw, Poland.
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Pawlas-Opiela M, Sołtysiak Z, Gorczykowski M. Morphological and biochemical changes in the blood of horses naturally infected with Gasterophilus sp. larvae. Pol J Vet Sci 2010; 13:247-251. [PMID: 20731178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Gasterophilus sp. constitute a group of specific parasites, which larval forms are found in horses and other phylogenetically related species--donkeys, mules and zebras. Their invasion is associated with marked fluctuations of hematological and biochemical blood parameters, including the activity of many enzymes and the electrolyte concentration. The purpose of the study was to analyze changes in selected biochemical and morphological blood parameters of horses infected with botfly larvae. The experimental group was formed of horses infested by Gasterophilus sp. larvae whereas the control group consisted of noninfested horses. The study was performed in two periods: at the beginning and at the most advanced invasion. Significant differences between horses at early and late stage of invasion were found in terms of erythrocyte parameters. Mean red and white blood cell counts and mean hemoglobin concentration were lower in horses with late invasion compared to those with the invasion at its early stage. The values of all the aforementioned erythrocyte parameters remained within the reference limits for both groups of horses. Moreover, both in horses infected with botfly larvae and in those from the control group, biochemical parameters studied did not exceed the respective reference limits. Our results suggest that larvae of botfly which colonize the gastrointestinal tract have relatively insignificant influence on the basic hematological and biochemical parameters of horse blood.
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Affiliation(s)
- M Pawlas-Opiela
- Parasitology Unit, Department of Internal Diseases, Clinic of Horses, Dogs and Cats Diseases, Wrocław University of Environmental and Life Sciences, C.K. Norwida 31, 50-375 Wrocław
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Sołtysiak Z, Gorczykowski M, Pawlas-Opiela M, Chełmońska-Soyta A, Nowacki W. Accidental discovery of Trypanosoma theileri in the in vitro culture of the heifer lymphocytes. Pol J Vet Sci 2009; 12:395-398. [PMID: 19886263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The diagnostics of the Trypanosoma sp. invasion by means of the classic methods i.e. the methods of thin smears or thick drop or even the microhematocrite method, especially when intensity of infection is low, is very difficult. In our climatic zone, trypanosomosis is usually considered as an exotic disease. An opportunistic model of the infection with the parasite and a lack of current data on the prevalence of T. theileri in the cattle in Poland cause that it is neglected as a potential reason of contamination of tissue cultures in cattle. We showed the presence of T. theileri in culture of isolated lymphocytes from one of six heifers examined. It seems that the prevalence of the invasion of the parasite is not very intense but it should be considered as a possible threat for bovine cell culture. It is also worth including this parasitosis in the differential diagnostics of other diseases that are infectious and/or proceed with symptoms of immunosuppression.
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Affiliation(s)
- Z Sołtysiak
- Parasitology Unit, Department of Internal and Parasitic Diseases with Clinic of Horses, Dogs and Cats Diseases, Wrocław University of Environmental and Life Sciences, C.K. Norwida 31, 50-375 Wrocław.
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Gierek D, Baczyńska D, Ugorski M, Bazer F, Kurpisz M, Bednarski T, Gorczykowski M, Chełmońska-Soyta A. Differential effect of IFN-tau on proliferation and distribution of lymphocyte subsets in one-way mixed lymphocyte reaction in cows and heifers. J Reprod Immunol 2006; 71:126-31. [PMID: 16870264 DOI: 10.1016/j.jri.2006.04.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2005] [Revised: 04/19/2006] [Accepted: 04/27/2006] [Indexed: 11/30/2022]
Abstract
IFN-tau is a signaling protein secreted by the bovine conceptus during the peri-implantation period and responsible for pregnancy recognition. Its main role is the prevention of pulsatile release of luteolytic PGF2alpha, but it also exerts immunomodulatory activities characteristic for other type I interferons. The aim of the study was to examine the effect of IFN-tau on the proliferation and distribution of peripheral blood lymphocyte subsets during one-way mixed lymphocyte reaction (MLR) in cows and heifers. IFN-tau inhibited the proliferative response of lymphocytes in MLR both in cows and heifers in a dose-dependent manner, but cow lymphocytes were less susceptible than those ones from heifers. It was also showed that IFN-tau differentially changed lymphocyte subsets distribution in MLR in cows and heifers. In cows, the relative percentage of CD8(+) cells after MRL in the presence of IFN-tau was significantly lower than in heifers. Differential effect of rIFN-tau on proliferation and lymphocyte subsets distribution in a one-way MRL in cows and heifers indicated that the age of the mother is an important factor in immunomodulatory effect towards developing bovine embryo.
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Affiliation(s)
- D Gierek
- Faculty of Veterinary Medicine, Agriculture University of Wrocław, Norwida Str. 31, 50-375 Wroclaw, Poland
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