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Nastasa V, Minea B, Pasca AS, Bostanaru-Iliescu AC, Stefan AE, Gologan D, Capota R, Foia LG, Mares M. Long-Term Oral Administration of Hyperimmune Egg-Based IgY-Rich Formulations Induces Mucosal Immune Response and Systemic Increases of Cytokines Involved in Th2- and Th17-Type Immune Responses in C57BL/6 Mice. Int J Mol Sci 2024; 25:8701. [PMID: 39201385 PMCID: PMC11354499 DOI: 10.3390/ijms25168701] [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: 06/12/2024] [Revised: 07/29/2024] [Accepted: 08/06/2024] [Indexed: 09/02/2024] Open
Abstract
Three hyperimmune egg-based formulations rich in immunoglobulin Y (IgY) were orally administered (daily, for up to 90 days) to C57BL/6 mice that were not microbially challenged. The serum levels of 32 cytokines were quantified every 30 days. Histopathology, hematology, and serum biochemistry investigations were also performed. As a sign of increased immune activity, lymphohistiocytic infiltrates were detected in the digestive tract and the liver after 30, 60, and 90 days of treatment. These infiltrates were also present in the lungs after 30 and 60 days, but not at 90 days. Blood analysis indicated systemic inflammation after 30 days of treatment: increases in pro-inflammatory cytokines, glycemia, total serum proteins, ALT, and ALP. After 60 and 90 days of treatment, the analyzed blood parameters showed mixed signs of both increased and decreased inflammation. The increased cytokines, which varied with formulation and time of exposure, indicated a combination of mostly Th17- and Th2-type immune responses. As the mice were healthy and housed in standardized sanitary conditions, and were not microbially challenged, the data were consistent with an interaction of IgY with the gut-associated lymphoid tissue as the main mechanism of action. This interaction generated a local immune response, which subsequently induced a systemic response.
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Affiliation(s)
- Valentin Nastasa
- Laboratory of Antimicrobial Chemotherapy, Faculty of Veterinary Medicine, “Ion Ionescu de la Brad” Iasi University of Life Sciences (IULS), 8 Mihail Sadoveanu Alley, 700489 Iasi, Romania; (V.N.); (A.-S.P.); (A.-C.B.-I.); (R.C.); (M.M.)
| | - Bogdan Minea
- Department of Surgery, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy of Iasi, 16 Universitatii Street, 700115 Iasi, Romania;
| | - Aurelian-Sorin Pasca
- Laboratory of Antimicrobial Chemotherapy, Faculty of Veterinary Medicine, “Ion Ionescu de la Brad” Iasi University of Life Sciences (IULS), 8 Mihail Sadoveanu Alley, 700489 Iasi, Romania; (V.N.); (A.-S.P.); (A.-C.B.-I.); (R.C.); (M.M.)
| | - Andra-Cristina Bostanaru-Iliescu
- Laboratory of Antimicrobial Chemotherapy, Faculty of Veterinary Medicine, “Ion Ionescu de la Brad” Iasi University of Life Sciences (IULS), 8 Mihail Sadoveanu Alley, 700489 Iasi, Romania; (V.N.); (A.-S.P.); (A.-C.B.-I.); (R.C.); (M.M.)
| | - Alina-Elena Stefan
- Doctoral School, Department of Pathology, Faculty of Veterinary Medicine, University of Agronomic Sciences and Veterinary Medicine, 59 Mărăşti Boulevard, 011464 Bucharest, Romania;
- Department of Research and Development, Themis Pathology SRL, 56F 1 Decembrie 1918 Boulevard, 032468 Bucharest, Romania;
| | - Daniela Gologan
- Department of Research and Development, Themis Pathology SRL, 56F 1 Decembrie 1918 Boulevard, 032468 Bucharest, Romania;
- Doctoral School, Department of Organic Chemistry, Faculty of Chemical Engineering and Biotechnologies, Politehnica University, 313 Splaiul Independenţei, 060042 Bucharest, Romania
| | - Robert Capota
- Laboratory of Antimicrobial Chemotherapy, Faculty of Veterinary Medicine, “Ion Ionescu de la Brad” Iasi University of Life Sciences (IULS), 8 Mihail Sadoveanu Alley, 700489 Iasi, Romania; (V.N.); (A.-S.P.); (A.-C.B.-I.); (R.C.); (M.M.)
| | - Liliana-Georgeta Foia
- Department of Surgery, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy of Iasi, 16 Universitatii Street, 700115 Iasi, Romania;
| | - Mihai Mares
- Laboratory of Antimicrobial Chemotherapy, Faculty of Veterinary Medicine, “Ion Ionescu de la Brad” Iasi University of Life Sciences (IULS), 8 Mihail Sadoveanu Alley, 700489 Iasi, Romania; (V.N.); (A.-S.P.); (A.-C.B.-I.); (R.C.); (M.M.)
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Zeng T, Sun H, Huang M, Guo R, Gu T, Cao Y, Li C, Tian Y, Chen L, Li G, Lu L. Dietary supplementation of coated sodium butyrate improves growth performance of laying ducks by regulating intestinal health and immunological performance. Front Immunol 2023; 14:1142915. [PMID: 36969242 PMCID: PMC10034168 DOI: 10.3389/fimmu.2023.1142915] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 02/28/2023] [Indexed: 03/12/2023] Open
Abstract
IntroductionThis study was conducted to assess the effects of dietary supplementation of coated sodium butyrate (CSB) on the growth performance, serum antioxidant, immune performance, and intestinal microbiota of laying ducks.MethodsA total of 120 48-week-old laying ducks were randomly divided into 2 treatment groups: the control group (group C fed a basal diet) and the CSB-treated group (group CSB fed the basal diet + 250 g/t of CSB). Each treatment consisted of 6 replicates, with 10 ducks per replicate, and the trial was conducted for 60 days.ResultsCompared with the group C, the group CSB showed a significant increase in the laying rate (p<0.05) of the 53-56 week-old ducks. Additionally, the serum total antioxidant capacity, superoxide dismutase activity and immunoglobulin G level were significantly higher (p<0.05), while the serum malondialdehyde content and tumor necrosis factor (TNF)-a level were significantly lower (p<0.05) in the serum of the group CSB compared to the group C. Moreover, the expression of IL-1b and TNF-a in the spleen of the group CSB was significantly lower (p<0.05) compared to that of the group C. In addition, compared with the group C, the expression of Occludin in the ileum and the villus height in the jejunum were significantly higher in the group CSB (p<0.05). Furthermore, Chao1, Shannon, and Pielou-e indices were higher in the group CSB compared to the group C (p<0.05). The abundance of Bacteroidetes in the group CSB was lower than that in the group C (p<0.05), while the abundances of Firmicutes and Actinobacteria were higher in the group CSB compared to the group C (p<0.05).ConclusionsOur results suggest that the dietary supplementation of CSB can alleviate egg-laying stress in laying ducks by enhancing immunity and maintaining the intestinal health of the ducks.
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Affiliation(s)
- Tao Zeng
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Hanxue Sun
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Manman Huang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Rongbing Guo
- College of Animal Science, Zhejiang A&F University, Hangzhou, China
| | - Tiantian Gu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Yongqing Cao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Chengfeng Li
- Hubei Shendan Health Food Co., Ltd., Xiaogan, China
| | - Yong Tian
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Li Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Guoqin Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Lizhi Lu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- *Correspondence: Lizhi Lu,
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Sun H, Gu T, Li G, Chen L, Tian Y, Xu W, Zeng T, Lu L. Effects of Compound Probiotics on Growth Performance, Serum Biochemical and Immune Indices, Antioxidant Capacity, and Intestinal Tissue Morphology of Shaoxing Duck. Animals (Basel) 2022; 12:ani12223219. [PMID: 36428446 PMCID: PMC9686755 DOI: 10.3390/ani12223219] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 11/17/2022] [Accepted: 11/18/2022] [Indexed: 11/22/2022] Open
Abstract
This experiment was conducted to investigate the effects of compound probiotics on growth performance, serum biochemical and immune indices, antioxidant capacity, and the intestinal tissue morphology of Shaoxing ducks. A total of 640 1-day-old healthy Shaoxing ducks of similar body weight were randomly divided into two treatment groups with eight replicates each and forty ducks per replicate. The ducks were fed a basal diet (Ctrl) or a basal diet supplemented with 0.15% compound probiotics (CP) for 125 d. The results revealed that the live body weight (BW; day 85 and 125) and the average daily gain (ADG; 28−85 and 85−125 d) of the CP group were significantly higher (p < 0.05) than those of the Ctrl group. In the CP group, total protein and total cholesterol contents were significantly increased (p < 0.05) on days 28 and 85, while triglyceride and low-density lipoprotein contents were significantly decreased (p < 0.05) on day 85. Furthermore, interferon-γ content was significantly increased (p < 0.05) in the CP group on days 28, 85, and 125. Interleukin-2 content was significantly increased (p < 0.05) in the CP group on days 28 and 85. Interleukin-4 content was significantly decreased (p < 0.05) in the CP group on day 85. Moreover, in the CP group, superoxide dismutase content was significantly increased (p < 0.05) on days 28 and 125, and glutathione peroxidase content was significantly increased (p < 0.05) on day 125. The crypt depth (CD) in the duodenum of the CP group was significantly decreased (p < 0.05) on days 28 and 125, whereas the villus height (VH) in the jejunum of the CP group was significantly increased (p < 0.05) on days 85 and 125. The VH/CD ratio in the ileum of the CP group was significantly increased (p < 0.05) on days 28 and 85. The VH in the ileum of the CP group was significantly increased (p < 0.05) on day 28. The CD in the ileum of the CP group was significantly decreased (p < 0.05) on day 28. In summary, the compound probiotics improved the growth performance, increased serum biochemical and immune indices, increased antioxidant capacity, and improved the intestinal tissue morphology of Shaoxing ducks.
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A New Method to Characterize Conformation-Specific Antibody by a Combination of Agarose Native Gel Electrophoresis and Contact Blotting. Antibodies (Basel) 2022; 11:antib11020036. [PMID: 35645209 PMCID: PMC9149980 DOI: 10.3390/antib11020036] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/28/2022] [Accepted: 05/10/2022] [Indexed: 01/27/2023] Open
Abstract
In this study, we review the agarose native gel electrophoresis that separates proteins and macromolecular complexes in their native state and transfer of the separated proteins from the agarose gel to membranes by contact blotting which retains the native state of these structures. Green fluorescent protein showed functional state both on agarose gel and blotted membrane. Based on the combined procedures, we discovered conformation-specific monoclonal antibodies against PLXDC2 and SARS-CoV-2 spike protein.
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Asawakarn S, Taweethavonsawat P. Characterization of serum protein electrophoresis patterns and C-reactive protein in canine tick-borne diseases. Vet World 2021; 14:2150-2154. [PMID: 34566333 PMCID: PMC8448638 DOI: 10.14202/vetworld.2021.2150-2154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 07/19/2021] [Indexed: 01/08/2023] Open
Abstract
Background and Aim Canine tick-borne diseases are important diseases with a worldwide distribution. In Thailand, the most important canine tick-borne diseases are ehrlichiosis, babesiosis, and hepatozoonosis. This study aimed to determine the serum protein electrophoresis patterns (SPEPs) and C-reactive protein (CRP) levels associated with Ehrlichia canis , Babesia canis, or Hepatozoon canis single infections. Materials and Methods A total of 650 canine blood samples were collected from animal hospitals and clinics in Bangkok and its vicinity to examine health status and blood parasite infection. Suspected blood parasite infections were examined by buffy coat thin blood smear and confirmed by polymerase chain reaction. Normal dog and positive E. canis , B. canis, and H. canis single infections and serum protein profiles were determined by agarose gel electrophoresis. CRP concentration was measured by fluorescent immunoassay. Results In dogs infected with E. canis, B. canis, and H. canis single infections, albumin levels and A/G ratios significantly decreased, whereas β2-globulin levels increased (p<0.05). The γ-globulin level significantly increased in E. canis and H. canis infections (p<0.05). A monoclonal gammopathy pattern wasi observed in E. canis and B. canis sngle infections, whereas β-γ bridging patterns and increased β- and γ-globulin fractions were found in H. canis single infections. The CRP level increased in dogs with blood parasite single infections and may be related to the pathogenesis of the infection. Conclusion SPEPs and CRP levels can be used to monitor health status and blood parasite problems in infected dogs.
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Affiliation(s)
- Sariya Asawakarn
- Biochemistry Unit, Department of Veterinary Physiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand.,Biomarkers in Animals Parasitology Research Group, Chulalongkorn University, Bangkok 10330, Thailand
| | - Piyanan Taweethavonsawat
- Biomarkers in Animals Parasitology Research Group, Chulalongkorn University, Bangkok 10330, Thailand.,Parasitology Unit, Department of Veterinary Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, 10330, Thailand
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Asawakarn S, Sirisawadi S, Kunnasut N, Kamkong P, Taweethavonsawat P. Serum protein profiles and C-reactive protein in natural canine filariasis. Vet World 2021; 14:860-864. [PMID: 34083932 PMCID: PMC8167532 DOI: 10.14202/vetworld.2021.860-864] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 02/24/2021] [Indexed: 01/08/2023] Open
Abstract
Background and Aim: Canine filariasis is caused by several species of filarial worms. The pathophysiological response to infection is mainly due to the filaria lifecycle. Laboratory detection methods to assess the pathological alterations characteristic of filariasis are needed urgently. Serum protein profiles and C-reactive protein (CRP) levels are used widely to diagnose several animal diseases. This study aimed to determine the serum protein profiles and CRP levels in dogs infected with Dirofilaria immitis or Brugia pahangi or both parasites. Materials and Methods: Blood samples were collected from 980 dogs presenting at animal hospitals and veterinary clinics in Bangkok and its vicinity. The presence of microfilaria in samples was determined using a buffy coat smear and staining with Wright–Giemsa. The sheathed and unsheathed microfilaria species were identified by acid phosphatase staining. Forty positive samples were tested. The serum protein profiles were identified by agarose gel electrophoresis. The CRP concentration was measured using a fluorescent immunoassay. Results: Albumin levels and albumin-to-globulin ratios were significantly lower, and total protein, β2 globulin, and γ globulin levels were significantly elevated in dogs infected with D. immitis and B. pahangi compared with reference values in normal dogs. The average CRP concentrations in dogs infected with D. immitis or B. pahangi were 69.9 and 12.9 mg/L, respectively. Conclusion: The total protein and γ globulin levels increased in canine filariasis compared with the normal reference range. The CRP concentration in dogs infected with D. immitis was extremely high, whereas that in dog infected with B. pahangi was normal.
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Affiliation(s)
- Sariya Asawakarn
- Biochemistry Unit, Department of Veterinary Physiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Sujin Sirisawadi
- Biochemistry Unit, Department of Veterinary Physiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Nanthida Kunnasut
- Biochemistry Unit, Department of Veterinary Physiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Patchana Kamkong
- Parasitology Unit, Department of Veterinary Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Piyanan Taweethavonsawat
- Parasitology Unit, Department of Veterinary Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, 10330, Thailand
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Al Musawi MS, Al-Gailani BT. In Vitro Biostimulation of Low-Power Diode Pumping Solid State Laser Irradiation on Human Serum Proteins. PHOTOBIOMODULATION PHOTOMEDICINE AND LASER SURGERY 2020; 38:667-672. [PMID: 33103965 DOI: 10.1089/photob.2020.4873] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Objective: This research is conducted to clarify whether the action of low-power diode pumping solid state (DPSS) laser doses modify proteins of normal human blood serum in vitro. Background data: Low-power laser light is considered to act through biostimulation rather than through thermal effects. It was found that low-power laser light biostimulates various biological processes, such as increasing the blood flow within the microcirculation. Methods: Human blood serum samples were carefully collected and divided into five equal aliquots. One of them served as a control (nonirradiated serum) and the other four aliquots were irradiated by DPSS laser at a wavelength of 589 nm with different doses (50, 70, 90, and 110 J/cm2). The electrophoretic migration speeds of each specific protein were measured immediately after irradiation using protein electrophoresis. A paired Student's t-test was used between variables. Results: The protein concentrations were not significantly (p > 0.05) changed by the various doses of DPSS laser comparing with the nonirradiated counterpart. The electrophoretic migration speed of serum proteins was significantly decreased in almost all tested doses relative to the nonirradiated counterpart. Moreover, the irradiation of serum proteins (albumin, alpha1, alpha 2, beta, and globulin) with a laser dose of 70 J/cm2 was associated with a significant decrease (p < 0.003, 0.02, 0.002, 0.02 and 0.001, respectively) in protein migration speed compared with the protein migration speed of the control nonirradiated counterpart. Conclusions: Laser light at a wavelength of 589 nm induces processes that lead to decreases in serum protein migration speeds. Globulin protein was found to have the lowest migration speed among the other plasma proteins.
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The Electrophoretic Pattern of Serum Proteins in Sheep with Naturally Acquired Gastrointestinal Nematode Infections. ACTA VET-BEOGRAD 2020. [DOI: 10.2478/acve-2020-0024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Abstract
The objective of this study was to describe the serum protein pattern in sheep with naturally acquired gastrointestinal parasitosis and to compare the distribution of protein fractions with the results obtained in animals with negative fecal examination results. Fecal and blood samples were taken from twenty-nine sheep positive for nematode eggs and twenty-four animals with negative results of fecal examination. Between the evaluated groups of sheep significant differences were noted in the relative mean values for all protein fractions and for albumin/globulin ratio (p<0.01 and p<0.001). The concentrations of total proteins showed no significant differences between both groups of sheep. The absolute mean values of albumin, α2-globulins and A/G ratio were significantly lower, the mean concentrations of α1-, β-, γ1- and γ2-globulins significantly higher in the nematode positive group of sheep (p<0.01 and p<0.001). In the nematode positive group the protein electrophoretic pattern showed a double α2-zone in three sheep and the γ-globulin zones were characterized by a diffuse higher broad and wide peaks. The presented results indicate that the gastrointestinal parasitic infections in sheep alter the distribution of serum proteins, and suggest their usefulness in animals with unchanged serum protein concentrations. The study brings new findings and extends the knowledge about the metabolic responses and consequences of gastrointestinal parasitic infections in sheep, particularly with regard to alterations in protein metabolism.
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Athanasiou LV, Katsoulos PD, Ziogas C, Kassab A, Polizopoulou Z. Serum protein electrophoretic profile in diarrheic neonatal calves. ACTA ACUST UNITED AC 2019; 28:685-688. [PMID: 32214978 PMCID: PMC7088309 DOI: 10.1007/s00580-019-02935-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Accepted: 03/05/2019] [Indexed: 11/30/2022]
Abstract
The electrophoretic profile of clinically healthy newborn calves and calves with neonatal diarrhea was compared. Blood samples were collected at 3 and 10 days of age from 11 calves that remained clinically healthy throughout the study period and 14 calves with diarrhea. A significant reduction in the gamma globulins was observed in the diarrheic calves that can be attributed to the transfer of serum immunoglobulins, to the intestinal lumen to counteract the infection. Moreover, a significant increase in the albumin was observed in this group between the sampling days that is mainly attributed to the relative reduction of the gamma globulin fraction.
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Affiliation(s)
- Labrini V Athanasiou
- 1Department of Medicine, Faculty of Veterinary Medicine, School of Health Sciences, University of Thessaly, GR-43100 Karditsa, Greece
| | - Panagiotis Dimitrios Katsoulos
- 2Clinic of Farm Animals, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, GR-54627 Thessaloniki, Greece
| | - Christos Ziogas
- 1Department of Medicine, Faculty of Veterinary Medicine, School of Health Sciences, University of Thessaly, GR-43100 Karditsa, Greece
| | - Ahmed Kassab
- 3Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Benha University, Moshtohor, Toukh, 13736 Egypt
| | - Zoe Polizopoulou
- 4Diagnostic Laboratory, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, GR-54627 Thessaloniki, Greece
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