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Cainelli S, Peralta MB, Stassi AF, Angeli E, Gareis NC, Durante L, Ortega HH, Velázquez MML. Endometrial distribution of bovine immune cells in relation to days to conception after parturition. Anim Reprod Sci 2024; 270:107603. [PMID: 39321495 DOI: 10.1016/j.anireprosci.2024.107603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 08/30/2024] [Accepted: 09/15/2024] [Indexed: 09/27/2024]
Abstract
In dairy cows, the processes involved in the resolution of uterine inflammation during the postpartum are closely related to improved fertility during the subsequent lactation period. Little is known, however, about the role and distribution of endometrial immune cell populations during the pre-implantation period. This study was aimed to analyze the endometrial distribution of several mononuclear immune cells (T cells, γδ T cells, B cells and macrophages) in healthy dairy cows during the postpartum, beyond the transition period, looking for its possible association with the parturition-conception interval (PCI) and delayed conception. The quantification of immune cells was evaluated by immunohistochemistry (IHC), and the expression of hormone receptors in immune cells was evaluated by double IHC. Dairy cows were grouped according to their PCI: PCI shorter than or equal to 90 DIM (PCI≤90), PCI between 90 and 120 DIM (PCI90-120), and PCI greater than 150 DIM (PCI≥150). The distribution of endometrial mononuclear immune cells was analyzed by a Generalized Linear Model, and the association of the distribution of mononuclear immune cells with delayed conception was evaluated with a Kaplan-Meier test. The cows from the PCI90-120 group showed the highest number of endometrial macrophages, and a lower number of B cells than the PCI≤90 group. Results also showed an association between the lower number of B cells in the endometrium during the pre-implantation period and earlier conception. Also, the present findings indicates that ESR and PR are expressed in the endometrial MØ, T cells, γδ T cells and B cells.
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Affiliation(s)
- S Cainelli
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Universidad Nacional del Litoral (UNL) / Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Esperanza, Santa Fe, Argentina
| | - M B Peralta
- Instituto de Ecología Humana y Desarrollo Sustentable. Universidad Católica de Santa Fe (UCSF), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina
| | - A F Stassi
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Universidad Nacional del Litoral (UNL) / Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Esperanza, Santa Fe, Argentina; Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral (UNL), Esperanza, Santa Fe, Argentina
| | - E Angeli
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Universidad Nacional del Litoral (UNL) / Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Esperanza, Santa Fe, Argentina; Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral (UNL), Esperanza, Santa Fe, Argentina
| | - N C Gareis
- Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral (UNL), Esperanza, Santa Fe, Argentina; Instituto Nacional de Tecnología Agropecuaria (INTA), Rafaela, Santa Fe, Argentina
| | - L Durante
- Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral (UNL), Esperanza, Santa Fe, Argentina
| | - H H Ortega
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Universidad Nacional del Litoral (UNL) / Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Esperanza, Santa Fe, Argentina; Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral (UNL), Esperanza, Santa Fe, Argentina
| | - M M L Velázquez
- Instituto de Ecología Humana y Desarrollo Sustentable. Universidad Católica de Santa Fe (UCSF), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santa Fe, Argentina; Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral (UNL), Esperanza, Santa Fe, Argentina.
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Golubska M, Paukszto Ł, Kurzyńska A, Mierzejewski K, Gerwel Z, Bogacka I. PPAR beta/delta regulates the immune response mechanisms in the porcine endometrium during LPS-induced inflammation - An in vitro study. Theriogenology 2024; 226:130-140. [PMID: 38878465 DOI: 10.1016/j.theriogenology.2024.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 06/02/2024] [Accepted: 06/10/2024] [Indexed: 07/24/2024]
Abstract
Inflammation in the reproductive tract has become a serious threat to animal fertility. Recently, the role of peroxisome proliferator-activated receptor gamma (PPARγ) in the context of reproduction and the inflammatory response has been highlighted, but the role of PPARβ/δ has not been fully elucidated. The aim of the present study was to investigate the in vitro effect of PPARβ/δ ligands (agonist: L-165,041 and antagonist: GSK 3787) on the transcriptome profile of porcine endometrium during LPS-induced inflammation in the mid-luteal and follicular phases of the oestrous cycle (days 10-12 and 18-20, respectively) using the RNA-Seq method. During the mid-luteal phase of the oestrous cycle, the current study identified 145 and 143 differentially expressed genes (DEGs) after treatment with an agonist or antagonist, respectively. During the follicular phase of the oestrous cycle, 55 and 207 DEGs were detected after treatment with an agonist or antagonist, respectively. The detected DEGs are engaged in the regulation of various processes, such as the complement and coagulation cascade, NF-κB signalling pathway, or the pathway of 15-eicosatetraenoic acid derivatives synthesis. The results of the current study indicate that PPARβ/δ ligands are involved in the control of the endometrial inflammatory response.
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Affiliation(s)
- Monika Golubska
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Łukasz Paukszto
- Department of Botany and Nature Protection, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Aleksandra Kurzyńska
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Karol Mierzejewski
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Zuzanna Gerwel
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Iwona Bogacka
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland.
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Su C, Chen X, Zhang S, Wang C, Yang C, Arab K, Zeng Y, Zhou G, Zeng C, Zhang M. Progesterone and estradiol alleviate Poly I:C-induced immune response in endometrial stromal cells. J Reprod Immunol 2024; 166:104318. [PMID: 39241576 DOI: 10.1016/j.jri.2024.104318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 07/07/2024] [Accepted: 08/18/2024] [Indexed: 09/09/2024]
Abstract
Progesterone (P) and estradiol (E2) regulate the immune status of the uterus. However, whether P and E2 can affect the immune response of endometrial cell is still unknown. In the study, primary endometrial stromal cells (EndSCs) were treated with Poly(I:C), the pathogen-associated molecular pattern of double-stranded RNA (dsRNA) virus, to induce immune response, and then EndSCs were stimulated with P or/and E2. The results showed Poly(I:C) up-regulated the expression of immune cytokines IL-6, IL-8, IL-1β and TNF-α, and significantly down-regulated the expression of ERα and PGRMC1 in EndSCs. Moreover, P or low-dose of E2 attenuate Poly(I:C)-induced immune response, and then the synergistic effects of P and E2 decreased expression of ERα, ERβ and PGR, and alleviate the decease of PGRMC1 induced by Poly(I:C), but not alleviate the decease of ERα caused by Poly(I:C). The result provides a steroid therapeutic method to suppress dsRNA virtues-induced immune response through the synergistic effect of P and E2 on endometrial stromal cells.
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Affiliation(s)
- Changqi Su
- College of animal science and technology, Sichuan agricultural university, Chengdu 611130, China
| | - Xuanyu Chen
- College of animal science and technology, Sichuan agricultural university, Chengdu 611130, China
| | - Shilin Zhang
- College of animal science and technology, Sichuan agricultural university, Chengdu 611130, China
| | - Chun Wang
- College of animal science and technology, Sichuan agricultural university, Chengdu 611130, China
| | - Cuiting Yang
- College of animal science and technology, Sichuan agricultural university, Chengdu 611130, China
| | - Khan Arab
- College of animal science and technology, Sichuan agricultural university, Chengdu 611130, China
| | - Yutian Zeng
- College of animal science and technology, Sichuan agricultural university, Chengdu 611130, China
| | - Guangbin Zhou
- College of animal science and technology, Sichuan agricultural university, Chengdu 611130, China; Key Laboratory of Livestock and Poultry Multi-Omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Changjun Zeng
- College of animal science and technology, Sichuan agricultural university, Chengdu 611130, China; Key Laboratory of Livestock and Poultry Multi-Omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Ming Zhang
- College of animal science and technology, Sichuan agricultural university, Chengdu 611130, China; Key Laboratory of Livestock and Poultry Multi-Omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China.
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Gobikrushanth M, Dos Santos SJ, Champika F, Hill JE, Dadarwal D. Uterine microbial profiles in healthy postpartum dairy cows do not vary with sampling techniques or phases of estrous cycle. Theriogenology 2024; 214:298-306. [PMID: 37976796 DOI: 10.1016/j.theriogenology.2023.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 10/30/2023] [Accepted: 11/02/2023] [Indexed: 11/19/2023]
Abstract
In this study, we aimed to compare uterine microbial profiles in postpartum dairy cows, determined by bacteriological culture and next-generation sequencing, using three uterine sampling techniques (swab, cytobrush, and lavage) and induced phases of the estrous cycle (estrus and diestrus). Fifteen healthy postpartum dairy cows at 53 ± 5 days postpartum were enrolled in the study. Uterine samples were collected during a fixed-time artificial insemination protocol. Viable bacteria were aerobically cultured from part of each sample, and bacterial isolates were identified through Sanger sequencing of the 16S rRNA gene. Total genomic DNA was extracted from the remainder of undiluted samples to quantify bacterial load using 16S rRNA qPCR and characterize the microbiome by metagenomic sequencing of the V1-V3 region of the 16S rRNA gene. Microbial profiles and composition were analyzed using the Shannon-Weaver diversity index and principal component analysis, respectively. Out of 87 samples, 88 % (77/87) were culture positive. The proportion of culture-positive uterine samples did not differ between sampling techniques (P = 0.39) or estrous cycle phases (P = 0.99). However, swab, cytobrush, and lavage techniques yielded 1.5, 9 and 9 times greater bacterial loads (P < 0.01), respectively, during diestrus than estrus phase. Moreover, during diestrus phase, the cytobrush method yielded 3 and 6 times more bacteria (P < 0.01) than both the lavage and swab methods. The most abundant bacterial genera identified from both bacteriological culture and metagenomic sequencing were Bacillus and Enterococcus, regardless of sampling technique or phases of the estrous cycle. Bacterial genera in moderate to low abundance through metagenomic sequencing included Streptococcus, Oscillospiraceae, and Lachnospiraceae. Notably, the uterine microbial profiles and composition, determined by metagenomic sequencing, did not differ by sampling techniques (P = 0.55 and P = 0.60, respectively) or estrous cycle phases (P = 0.34 and P = 0.17, respectively). In conclusion, our results suggest that any of the sampling techniques can be reliably used to study the uterine microbiome of healthy cows at random phases of the estrous cycle. However, it is important to consider potential differences in bacterial yield as a confounding factor.
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Affiliation(s)
- Mohanathas Gobikrushanth
- Department of Large Animal Clinical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, S7N 5B4, Canada
| | - Scott J Dos Santos
- Department of Veterinary Microbiology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, S7N 5B4, Canada
| | - Fernando Champika
- Department of Veterinary Microbiology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, S7N 5B4, Canada
| | - Janet E Hill
- Department of Veterinary Microbiology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, S7N 5B4, Canada
| | - Dinesh Dadarwal
- Department of Large Animal Clinical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, S7N 5B4, Canada.
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Subacute Ruminal Acidosis as a Potential Factor that Induces Endometrium Injury in Sheep. Int J Mol Sci 2023; 24:ijms24021192. [PMID: 36674716 PMCID: PMC9861559 DOI: 10.3390/ijms24021192] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/03/2023] [Accepted: 01/04/2023] [Indexed: 01/11/2023] Open
Abstract
The demand for economic benefits has led to an increase in the proportion of high-concentrate (HC) feed in the ruminant diet, resulting in an increased incidence of subacute ruminal acidosis (SARA). During SARA, a high concentration of lipopolysaccharide (LPS) translocated in the rumen induces a systemic inflammatory response. Inflammatory diseases, such as endometritis and mastitis, are often associated with SARA; however, in sheep, the mechanism of the effect of SARA on the endometrium has rarely been reported. Therefore, the aim of this study was to investigate, for the first time, the influence of LPS translocation on endometrial tight junctions (TJs) during SARA in sheep. The results showed that LPS and TNFα levels in the ruminal fluid, serum, and endometrial tissue supernatant during SARA increased, transcription levels of TLR4, NFκB, and TNFα in the endometrium increased, the protein expression level of claudin-1 in the endometrium increased, and the protein expression level of occludin decreased. 17β-estradiol (E2) inhibits claudin-1 protein expression and promotes occludin expression, and progesterone (P4) promotes claudin-1 protein expression and inhibits occludin protein expression. E2 and P4 regulate claudin-1 and occludin protein expression through their receptor pathways. Here, we found that LPS hindered the regulatory effect of E2 and P4 on endometrial TJs by inhibiting their receptor expression. The results of this study indicate that HC feeding can cause SARA-induced LPS translocation in sheep, increase susceptibility to systemic inflammation, induce the endometrial inflammatory response, and cause endometrial epithelial TJ damage directly and/or by obstructing E2 and P4 function. LPS translocation caused by SARA has also been suggested to induce an endometrial inflammatory response, resulting in endometrial epithelial barrier damage and physiological dysfunction, which seriously affects ruminant production. Therefore, this study provides new evidence that SARA is a potential factor that induces systemic inflammation in ruminants. It provides theoretical support for research on the prevention of endometritis in ruminants.
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Feng R, Qin X, Li Q, Olugbenga Adeniran S, Huang F, Li Y, Zhao Q, Zheng P. Progesterone regulates inflammation and receptivity of cells via the NF-κB and LIF/STAT3 pathways. Theriogenology 2022; 186:50-59. [DOI: 10.1016/j.theriogenology.2022.04.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 03/06/2022] [Accepted: 04/07/2022] [Indexed: 11/24/2022]
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Cui L, Shao X, Sun W, Zheng F, Dong J, Li J, Wang H, Li J. Anti-inflammatory effects of progesterone through NF-κB and MAPK pathway in lipopolysaccharide- or Escherichia coli-stimulated bovine endometrial stromal cells. PLoS One 2022; 17:e0266144. [PMID: 35476705 PMCID: PMC9045630 DOI: 10.1371/journal.pone.0266144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 03/15/2022] [Indexed: 12/28/2022] Open
Abstract
Postpartum uterine infection in dairy cows is commonly caused by pathogenic bacteria such as Escherichia coli (E. coli). Progesterone elicits immunosuppressive function within bovine endometrium, and has been suggested to be related to postpartum uterine infection. Endometrial stroma is exposed to bacteria due to the disruption of epithelium during parturition, but the effect and mechanism of progesterone on innate immune response of stromal cells has not been reported. This study evaluated the impact of progesterone on inflammatory response of primary endometrial stromal cells stimulated by lipopolysaccharide or heat-killed E. coli. Quantitative PCR analysis revealed that progesterone repressed mRNA induction of IL1B, IL6, TNF, CXCL8, NOS2, and PTGS2 in stromal cells in response to lipopolysaccharide or E. coli challenge. Consistently, Western blot and immunofluorescence staining results showed that progesterone suppressed lipopolysaccharide- or E. coli-induced MAPK and NF-κB activations characterized with decreased phosphorylations of ERK1/2, JNK, P38, IκBα, and P65, and inhibition of P65 nuclear translocation. In unstimulated stromal cells, progesterone alone did not affect the mRNA transcription for IL6, TNF, CXCL8, NOS2, and PTGS2, and the signaling cascade of MAPK and NF-κB, but decreased IL1B mRNA expression. These results revealed that the anti-inflammatory effect of progesterone in lipopolysaccharide- or E. coli-challenged endometrial stromal cells was probably mediated through MAPK and NF-κB pathways.
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Affiliation(s)
- Luying Cui
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, PR China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou University, Yangzhou, Jiangsu, PR China
- Joint International Research Laboratory of Agriculture and Agriproduct Safety of the Ministry of Education, Yangzhou, Jiangsu, PR China
| | - Xinyu Shao
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, PR China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou University, Yangzhou, Jiangsu, PR China
- Joint International Research Laboratory of Agriculture and Agriproduct Safety of the Ministry of Education, Yangzhou, Jiangsu, PR China
| | - Wenye Sun
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, PR China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou University, Yangzhou, Jiangsu, PR China
- Joint International Research Laboratory of Agriculture and Agriproduct Safety of the Ministry of Education, Yangzhou, Jiangsu, PR China
| | - Fangling Zheng
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, PR China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou University, Yangzhou, Jiangsu, PR China
- Joint International Research Laboratory of Agriculture and Agriproduct Safety of the Ministry of Education, Yangzhou, Jiangsu, PR China
| | - Junsheng Dong
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, PR China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou University, Yangzhou, Jiangsu, PR China
- Joint International Research Laboratory of Agriculture and Agriproduct Safety of the Ministry of Education, Yangzhou, Jiangsu, PR China
| | - Jun Li
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, PR China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou University, Yangzhou, Jiangsu, PR China
- Joint International Research Laboratory of Agriculture and Agriproduct Safety of the Ministry of Education, Yangzhou, Jiangsu, PR China
| | - Heng Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, PR China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou University, Yangzhou, Jiangsu, PR China
- Joint International Research Laboratory of Agriculture and Agriproduct Safety of the Ministry of Education, Yangzhou, Jiangsu, PR China
- * E-mail: (HW); (JL)
| | - Jianji Li
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, PR China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou University, Yangzhou, Jiangsu, PR China
- Joint International Research Laboratory of Agriculture and Agriproduct Safety of the Ministry of Education, Yangzhou, Jiangsu, PR China
- * E-mail: (HW); (JL)
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Pereira G, Guo Y, Silva E, Bevilacqua C, Charpigny G, Lopes-da-Costa L, Humblot P. Progesterone differentially affects the transcriptomic profiles of cow endometrial cell types. BMC Genomics 2022; 23:82. [PMID: 35086476 PMCID: PMC8793221 DOI: 10.1186/s12864-022-08323-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 01/20/2022] [Indexed: 01/04/2023] Open
Abstract
Background The endometrium is a heterogeneous tissue composed of luminal epithelial (LE), glandular epithelial (GE), and stromal cells (ST), experiencing progesterone regulated dynamic changes during the estrous cycle. In the cow, this regulation at the transcriptomic level was only evaluated in the whole tissue. This study describes specific gene expression in the three types of cells isolated from endometrial biopsies following laser capture microdissection and the transcriptome changes induced by progesterone in GE and ST cells. Results Endometrial LE, GE, and ST cells show specific transcriptomic profiles. Most of the differentially expressed genes (DEGs) in response to progesterone are cell type-specific (96%). Genes involved in cell cycle and nuclear division are under-expressed in the presence of progesterone in GE, highlighting the anti-proliferative action of progesterone in epithelial cells. Elevated progesterone concentrations are also associated with the under-expression of estrogen receptor 1 (ESR1) in GE and oxytocin receptor (OXTR) in GE and ST cells. In ST cells, transcription factors such as SOX17 and FOXA2, known to regulate uterine epithelial-stromal cross-talk conveying to endometrial receptivity, are over-expressed under progesterone influence. Conclusions The results from this study show that progesterone regulates endometrial function in a cell type-specific way, which is independent of the expression of its main receptor PGR. These novel insights into uterine physiology present the cell compartment as the physiological unit rather than the whole tissue. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-022-08323-z.
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Affiliation(s)
- Gonçalo Pereira
- CIISA-Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477, Lisbon, Portugal
| | - Yongzhi Guo
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, SLU, PO Box 7054, 750 07, Uppsala, Sweden
| | - Elisabete Silva
- CIISA-Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477, Lisbon, Portugal
| | - Claudia Bevilacqua
- Université Paris-Saclay, INRAE, AgroParisTech, GABI, 78350, Jouy-en-Josas, France
| | - Gilles Charpigny
- Université Paris-Saclay, INRAE, ENVA, BREED, 78350, Jouy-en-Josas, France
| | - Luís Lopes-da-Costa
- CIISA-Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477, Lisbon, Portugal.
| | - Patrice Humblot
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, SLU, PO Box 7054, 750 07, Uppsala, Sweden
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Magalhães L, Barbosa S, Fagundes N, Almeida M, Carneiro L, Brandão F, Nogueira G, Pereira E, Saut J. Ovarian steroids modulate the systemic inflammatory response OF COWS challenged with lipopolysaccharide (LPS) intrauterine INFUSION. Theriogenology 2022; 182:35-44. [DOI: 10.1016/j.theriogenology.2022.01.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 01/24/2022] [Accepted: 01/25/2022] [Indexed: 11/24/2022]
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Approaches of estrous synchronization in sheep: developments during the last two decades: a review. Trop Anim Health Prod 2021; 53:485. [PMID: 34581865 DOI: 10.1007/s11250-021-02932-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 09/10/2021] [Indexed: 10/20/2022]
Abstract
The objective of the current review was to summarize the protocols used for estrous synchronization in ewes during the last two decades. Progesterone (P4) is a major hormone used in most protocols. P4 in the form of a controlled internal drug releasing (CIDR) device, medroxyprogesterone acetate (MAP), and fluorogestone acetates (FGA) has been used for estrous synchronization. Also, gonadotropins such as equine chorionic gonadotropin (eCG) and gonadotropin-releasing hormone (GnRH) are often administered at the end of P4-based protocols to improve fertility. Moreover, the administration of prostaglandins (PG) and ram effects have been used for estrus induction and synchronization of ewes. The findings of previous studies indicate that the outcome of administering various synthetics P4 analogues (CIDR, MAP, and FGA) in ewes is comparable in terms of estrous synchronization/induction. The supplementation of P4-based protocols with eCG, however, improves the estrus response and pregnancy rate during breeding and non-breeding season. On the other hand, PG is effective for successful estrous synchronization during the breeding season only. Often, two injections of PG are administered either 11 or 14 days apart along with P4-based protocols to lyse ovine corpus luteum (CL) when it is receptive to PG i.e., 3 days post-ovulation. Alternatively, the "ram effect" has been shown to improve the efficacy of P4-based protocols and can be used as an alternative to eCG in ewes. The current review describes the methods of synchronization and their outcomes during breeding and a non-breeding season in ewes.
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McDougall S, Graham EM, Aberdein D, Reed CB, Burke CR. Development of an intrauterine infection model in the postpartum dairy cow. N Z Vet J 2021; 70:22-31. [PMID: 34185614 DOI: 10.1080/00480169.2021.1950069] [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] [Indexed: 10/21/2022]
Abstract
AIMS To develop an intrauterine infection model for Trueperella pyogenes in postpartum dairy cows and to assess the effect of this infection on the degree of intrauterine inflammation and concentrations of progesterone in serum. METHODS The oestrous cycles of 36 healthy, non-pregnant, postpartum dairy cows were synchronised. They were then treated by intrauterine infusion of 0.5 g cephapirin before being blocked by age and randomly assigned to treatment with intrauterine infusion of saline (n = 18), 107 (n = 9) or 109 (n = 9) cfu of T. pyogenes, approximately 4 days after the expected time of ovulation (Day 0). Prior to intrauterine infusion on Day 0 and again on Days 3, 7, 10, and 15, cytobrush samples were collected from the uterus of each cow for microbiology and assessment of the percentage of polymorphonuclear neutrophils (PMN%). Blood samples were collected on the same days for measurement of concentrations of progesterone in serum, and uterine lumen diameter was assessed daily using transrectal ultrasonography. RESULTS Trueperella pyogenes was isolated from 5/18 (28%), 7/9 (78%) and 8/9 (89%) cows infused with saline, 107 or 109 cfu of T. pyogenes, respectively (p < 0.001). Mean PMN% in the control cows did not change over time (p > 0.05), whereas it was higher on Days 7 and 10 than Day 0 in the 107 cfu group, and higher on Days 3 and 10 than Day 0 in the 109 cfu group (p < 0.05). The percentage of observations with uterine lumen diameters >2 mm was higher in cows infused with 107 (29.3 (95% CI = 14.5-44.2)%) or 109 cfu (19.2 (95% CI = 7.0-31.5)%) than in control cows (3.1 (95% CI = 0.1-6.0)%) (p < 0.001). Mean concentrations of progesterone in serum were higher in cows infused with 107 cfu (2.01 (SE 0.19) ng/mL) than cows infused with 109 cfu (1.01 (SE 0.27) ng/mL), with the control group intermediate (1.41 (SE 0.19) ng/mL) (p = 0.03). CONCLUSIONS Infusion of 107 or 109 cfu of T. pyogenes resulted in the establishment of intrauterine infection in 83% of cows. Infection resulted in increased uterine lumen diameter, and an inflammatory response, i.e. elevated PMN%. CLINICAL RELEVANCE This intrauterine infection model may be useful for future research on, for example, the pathogenesis of intrauterine infection in postpartum dairy cows.
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Affiliation(s)
- S McDougall
- Cognosco, Anexa, Morrinsville, New Zealand.,School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - E M Graham
- Cognosco, Anexa, Morrinsville, New Zealand
| | - D Aberdein
- School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - C B Reed
- DairyNZ Ltd., Newstead, New Zealand
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12
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Bogado Pascottini O, Spricigo JFW, Van Schyndel SJ, Mion B, Rousseau J, Weese JS, LeBlanc SJ. Effects of parity, blood progesterone, and non-steroidal anti-inflammatory treatment on the dynamics of the uterine microbiota of healthy postpartum dairy cows. PLoS One 2021; 16:e0233943. [PMID: 33606706 PMCID: PMC7895344 DOI: 10.1371/journal.pone.0233943] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 01/28/2021] [Indexed: 01/10/2023] Open
Abstract
This study evaluated the effects of treatment with meloxicam (a non-steroidal anti-inflammatory drug), parity, and blood progesterone concentration on the dynamics of the uterine microbiota of 16 clinically healthy postpartum dairy cows. Seven primiparous and 9 multiparous postpartum Holstein cows either received meloxicam (0.5 mg/kg SC, n = 7 cows) once daily for 4 days (10 to 13 days in milk (DIM)) or were untreated (n = 9 cows). Endometrial cytology samples were collected by cytobrush at 10, 21, and 35 DIM, from which the microbiota analysis was conducted using 16S rRNA gene sequence analysis. A radioimmunoassay was used to measure progesterone concentration in blood serum samples at 35 DIM and cows were classified as ˃ 1 ng/mL (n = 10) or ≤ 1 ng/mL (n = 6). Alpha diversity for bacterial genera (Chao1, Shannon-Weiner, and Camargo’s evenness indices) were not affected by DIM, meloxicam treatment, parity, or progesterone category. For beta diversity (genera level), principal coordinate analysis (Bray-Curtis) showed differences in microbiota between parity groups. At the phylum level, the relative abundance of Actinobacteria was greater in primiparous than multiparous cows. At the genus level, there was lesser relative abundance of Bifidobacterium, Lactobacillus, Neisseriaceae, Paracoccus, Staphylococcus, and Streptococcus and greater relative abundance of Bacillus and Fusobacterium in primiparous than multiparous cows. Bray-Curtis dissimilarity did not differ by DIM at sampling, meloxicam treatment, or progesterone category at 35 DIM. In conclusion, uterine bacterial composition was not different at 10, 21, or 35 DIM, and meloxicam treatment or progesterone category did not affect the uterine microbiota in clinically healthy postpartum dairy cows. Primiparous cows presented a different composition of uterine bacteria than multiparous cows. The differences in microbiota associated with parity might be attributable to changes that occur consequent to the first calving, but this hypothesis should be investigated further.
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Affiliation(s)
- O. Bogado Pascottini
- Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
- * E-mail:
| | - J. F. W. Spricigo
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - S. J. Van Schyndel
- Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - B. Mion
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - J. Rousseau
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - J. S. Weese
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - S. J. LeBlanc
- Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
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13
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Gonzalez-Bulnes A, Menchaca A, Martin GB, Martinez-Ros P. Seventy years of progestagen treatments for management of the sheep oestrous cycle: where we are and where we should go. Reprod Fertil Dev 2021; 32:441-452. [PMID: 31972122 DOI: 10.1071/rd18477] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 08/10/2019] [Indexed: 01/08/2023] Open
Abstract
Management of the ovine oestrous cycle is mainly based on the use of exogenous hormones to mimic or enhance (progesterone and its analogues) or manipulate (prostaglandin F2α and its analogues) the activity of the corpus luteum, combined with the application of other hormones mimicking the pituitary secretion of gonadotrophins (e.g. equine chorionic gonadotrophin). These protocols have been applied without major change for decades but, now, there are two reasons to reconsider them: (1) our greatly improved knowledge of the dynamics of ovarian physiology, following the application of transrectal ultrasonography, indicates that modification of the protocols may improve fertility yields and (2) increasing concerns about animal health and welfare, food safety and the environmental impact of the treatments, as evidenced by public opinion and therefore market forces. Here, we offer an overview of these issues, introduce an updated protocol and suggest ways for future improvements to the protocols.
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Affiliation(s)
- Antonio Gonzalez-Bulnes
- Departamento de Reproduccion Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Avenida, Puerta de Hierro, s/n, 28040, Madrid, Spain; and Departamento de Toxicologia y Farmacologia, Facultad de Veterinaria, Universidad Complutense de Madrid, Ciudad Universitaria, s/n, 28040, Madrid, Spain; and Corresponding author.
| | - Alejo Menchaca
- Instituto de Reproducción Animal Uruguay, Fundación Instituto de Reproduccion Animal del Uruguay, Camino Cruz del Sur 2350, Montevideo, Uruguay; and Programa de Posgrado, Facultad de Veterinaria, Universidad de la República, Avenida Lasplaces, 1550, Montevideo, Uruguay
| | - Graeme B Martin
- Institute of Agriculture, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
| | - Paula Martinez-Ros
- Departamento de Produccion y Sanidad Animal, Facultad de Veterinaria, Universidad Cardenal Herrera- Centro de Estudios Universitarios (CEU), CEU Universities, C/ Tirant lo Blanc, 7. 46115 Alfara del Patriarca Valencia, Spain
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14
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Elmetwally MA, Elshopakey GE, El-Desouky AM, Eldomany WB, Bazer FW. Serum biochemical profile in buffalo endometritis and impact of treatment with PGF2α and intrauterine gentamicin infusion on postpartum reproductive performance. Trop Anim Health Prod 2020; 52:3697-3706. [PMID: 32986188 DOI: 10.1007/s11250-020-02406-3] [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: 05/14/2020] [Accepted: 09/16/2020] [Indexed: 12/01/2022]
Abstract
Improving reproductive performance of repeat breeder buffalo cows due to clinical endometritis is crucial in overcoming infertility problems in buffalo cows. The aim of the present study was to use PGF2α and/or gentamicin 10% for treatment of endometritis and to determine biochemical parameters in serum that could be used to diagnose endometritis in buffalo cows. A total of 64 anestrous buffalo cows were assigned into one of five treatment groups: group one (n = 9) buffalo cows were physiological normal cows and served as a control group; group 2 buffalo cows had endometritis, but were not treated (n = 10); group 3 buffalo cows had endometritis and were treated with intrauterine delivery of 100 ml of a 10% gentamicin sulfate solution in three times within 1 week (n = 15); group 4 buffalo cows received two I.M. doses of PGF2α (2 ml Estrumate IM) at the time of corpus luteum dominance (n = 15) (treatment 4 does not make sense as you stated that the cows were in anestrus) on the ovary; group 5 buffalo cows received two IM doses of PGF2α at an 11 day interval and the 10% gentamicin solution as described for group 3. Serum samples were collected from control, pre-treated, and post-treated buffalo cows with endometritis to evaluate the diagnostic biochemical parameters. The days to first estrus (DFE), number of services per conception (S/C), days open (DO), and pregnancy rate (Preg) were the measures for determining reproductive performance for the buffalo cows. The buffalo cows treated by gentamicin and PGF2 exhibited their first estrus earlier than cows in the other four groups of cows. The number of days open for control cows was greater (P < 0.05) than for the other groups and the control cows, as were the number of services per conception (P < 0.05) and pregnancy rate (30%: P < 0.05). The receiver operating characteristic (ROC) curve was used to identify biochemical parameters in serum to predict endometritis. Creatine kinase (CK), aspartate aminotransferase (AST), and concentrations of total bilirubin and immunoglobulins in serum were greater (P < 0.05), while serum albumin values were lower (P < 0.05) in serum of buffalo cows with endometritis. From the ROC analyses, CK was the most predictable biomarker for endometritis with an area under the curve of 0.889, sensitivity of 80%, and specificity of 100% (P < 0.001). In conclusion, the use of gentamicin and PGF2 for treatment of endometritis improves the reproductive performance of buffalo cows, and concentrations of CK serve as an aid for diagnosing endometritis.Graphical abstract.
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Affiliation(s)
- Mohammed Ahmed Elmetwally
- Department of Theriogenology, Faculty of Veterinary Medicine, Mansoura University, Mansoura, 35516, Egypt.
| | - Gehad E Elshopakey
- Clinical Pathology, Veterinary Medicine Faculty, Mansoura University, Mansoura, 36615, Egypt
| | - Ashraf M El-Desouky
- Department of Theriogenology, Faculty of Veterinary Medicine, Mansoura University, Mansoura, 35516, Egypt
| | - Wael B Eldomany
- Department of Theriogenology, Faculty of Veterinary Medicine, Mansoura University, Mansoura, 35516, Egypt
| | - Fuller W Bazer
- Department of Animal Science, Texas A&M University, College Station, TX, 77843, USA.,Center for Animal Biotechnology and Genomics, Texas A&M University, College Station, TX, 77843, USA
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15
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Marey MA, Aboul Ezz M, Akthar I, Yousef MS, Imakawa K, Shimada M, Miyamoto A. Sensing sperm via maternal immune system: a potential mechanism for controlling microenvironment for fertility in the cow. J Anim Sci 2020; 98:S88-S95. [PMID: 32810249 DOI: 10.1093/jas/skaa147] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 04/30/2020] [Indexed: 11/13/2022] Open
Affiliation(s)
- Mohamed Ali Marey
- Graduate School of Animal and Food Hygiene, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan.,Department of Theriogenology, Faculty of Veterinary Medicine, Damanhur University, Behera, Egypt
| | - Mohamed Aboul Ezz
- Graduate School of Animal and Food Hygiene, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan.,Department of Theriogenology, Faculty of Veterinary Medicine, Mansoura University, Mansoura, Egypt
| | - Ihshan Akthar
- Graduate School of Animal and Food Hygiene, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan
| | - Mohamed Samy Yousef
- Graduate School of Animal and Food Hygiene, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan.,Department of Theriogenology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
| | - Kazuhiko Imakawa
- Research Institute of Agriculture, Tokai University, Kumamoto, Japan
| | - Masayuki Shimada
- Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Japan
| | - Akio Miyamoto
- Graduate School of Animal and Food Hygiene, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan
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16
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Ott TL. Immunological detection of pregnancy: Evidence for systemic immune modulation during early pregnancy in ruminants. Theriogenology 2020; 150:498-503. [PMID: 32331860 DOI: 10.1016/j.theriogenology.2020.04.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 04/08/2020] [Indexed: 12/28/2022]
Abstract
Mammalian pregnancy creates unique challenges for immune systems highly evolved to detect and eliminate invading pathogens. Recognition of the challenges created by gestating a semi-allogeneic fetus evolved from the discipline of transplantation biology and were informed by studies on the unique natural parabiosis that occurs when female calves are gestated with twin male fetuses. These pregnancies typically result in an intersex female termed a freemartin, which revealed insights into development of the male and female reproductive tracts. However, they also uncovered important clues on immune tolerance with wide-ranging implications to reproductive biology, transplantation biology and autoimmune disease. Many studies focused on identifying mechanisms through which the fetus evades maternal immune detection and elimination. These included studies characterizing immune interactions between the fetus and mother at the nourishing interface of the placenta and uterine endometrium. This immunological forbearance only occurs under high concentrations of circulating progesterone. Beyond the requirement for progesterone, there has been considerable progress towards understanding the effects of conceptus signals on maternal immune function. One common theme is that pregnancy induces a T helper 2 immune bias as shown in several mammalian species, including domestic ruminants. However, a growing body of evidence shows that the fetus not only evades, but also provokes immune responses locally in the uterus and in peripheral tissues. This is perhaps most dramatically illustrated by domestic ruminants where the conceptus secretes a unique interferon in the opening salvo of hormonal communication with the maternal immune system. The role of interferon tau in regulating expression of genes of the innate immune system in the uterus has been extensively studied. More recently, it was determined that these same genes are also induced in peripheral immune cells and other tissues throughout the body. In addition to interferon tau and progesterone, pregnancy associate glycoproteins and chaperonin 10 (aka Early Pregnancy Factor) are implicated in altering immune function both locally and systemically during pregnancy. While it is tempting to speculate that this activation of innate immunity is designed to counteract selective immunosuppression, knowledge of the importance of local and systemic immune activation to the success of pregnancy remains incomplete. This area remains fertile ground for developing better approaches to diagnose and treat infertility in domestic farm species and humans alike.
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Affiliation(s)
- Troy L Ott
- Department of Animal Science, Center for Reproductive Biology and Health, Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, 16802, USA.
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17
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Wathes DC, Oguejiofor CF, Thomas C, Cheng Z. Importance of Viral Disease in Dairy Cow Fertility. ENGINEERING (BEIJING, CHINA) 2020; 6:26-33. [PMID: 32288965 PMCID: PMC7104734 DOI: 10.1016/j.eng.2019.07.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 01/08/2019] [Accepted: 04/18/2019] [Indexed: 05/09/2023]
Abstract
Many viral diseases are endemic in cattle populations worldwide. The ability of many viruses to cross the placenta and cause abortions and fetal malformations is well understood. There is also significant evidence that viral infections have additional actions in dairy cows, which are reflected in reduced conception rates. These effects are, however, highly dependent on the time at which an individual animal first contracts the disease and are less easy to quantify. This paper reviews the evidence relating to five viruses that can affect fertility, together with their potential mechanisms of action. Acute infection with non-cytopathic bovine viral diarrhea virus (BVDV) in mid-gestation increases abortion rates or causes the birth of persistently infected calves. BVDV infections closer to the time of breeding can have direct effects on the ovaries and uterine endometrium, which cause estrous cycle irregularities and early embryo mortality. Fertility may also be reduced by BVDV-induced immunosuppression, which increases the susceptibility to bacterial infections. Bovine herpesvirus (BHV)-1 is most common in pre-pubertal heifers, and can slow their growth, delay breeding, and increase the age at first calving. Previously infected animals subsequently show reduced fertility. Although this may be associated with lung damage, ovarian lesions have also been reported. Both BHV-1 and BHV-4 remain latent in the host following initial infection and may be reactivated later by stress, for example associated with calving and early lactation. While BHV-4 infection alone may not reduce fertility, it appears to act as a co-factor with established bacterial pathogens such as Escherichia coli and Trueperella pyogenes to promote the development of endometritis and delay uterine repair mechanisms after calving. Both Schmallenberg virus (SBV) and bluetongue virus (BTV) are transmitted by insect vectors and lead to increased abortion rates and congenital malformations. BTV-8 also impairs the development of hatched blastocysts; furthermore, infection around the time of breeding with either virus appears to reduce conception rates. Although the reductions in conception rates are often difficult to quantify, they are nevertheless sufficient to cause economic losses, which help to justify the benefits of vaccination and eradication schemes.
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Affiliation(s)
| | - Chike F Oguejiofor
- Faculty of Veterinary Medicine, University of Nigeria, Nsukka 410001, Nigeria
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18
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Cousillas-Boam G, Weber WJ, Benjamin A, Kahl S, Heins BJ, Elsasser TH, Kerr DE, Crooker BA. Effect of Holstein genotype on innate immune and metabolic responses of heifers to lipopolysaccharide (LPS) administration. Domest Anim Endocrinol 2020; 70:106374. [PMID: 31499245 DOI: 10.1016/j.domaniend.2019.07.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 07/08/2019] [Accepted: 07/08/2019] [Indexed: 10/26/2022]
Abstract
Heifers (n = 4/genotype) from unselected (stable genotype since 1964, UH) and contemporary (CH) Holsteins that differed in milk yield (6,200 and 11,100 kg milk/305 d) were used to assess the impact of selection on innate immune and acute-phase response to an endotoxin (lipopolysaccharide; LPS). Jugular catheters were implanted 24 h before LPS administration. Blood samples were collected at -1, -0.5, 0, 1, 2, 3, 4, 6, 8, and 24 h relative to iv administration of 0.5 μg LPS/kg BW. Rectal body temperature (BT) was determined at these sampling times and at 5 and 7 h. Dermal biopsies were collected after the 24 h blood sample and processed to isolate fibroblasts. Plasma was analyzed for tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), serum amyloid A (SAA), xanthine oxidase (XO), and nitrate + nitrite (NOx), cortisol, glucose, and IGF-1 content. Isolated fibroblasts were exposed to IL-1β or LPS and IL-6 and IL-8 content of culture media determined. Exposure to LPS increased BTs and plasma concentrations of TNF-α, IL-6 SAA, XO, cortisol, and glucose (P < 0.05) in both genotypes. Plasma concentrations of TNF-α, XO, NOx, and glucose did not differ (P > 0.25) between the genotypes, but IL-6 and SAA concentrations were reduced (P < 0.05) in CH relative to UH heifers while cortisol and IGF-1 concentrations tended (P < 0.08) to be reduced in CH heifers. After 36 h exposure to LPS, concentrations of IL-6 were greater (P < 0.05) in culture media from incubations of CH than UH fibroblasts but concentrations of IL-8 did not differ between genotypes. There was a trend (P = 0.08) for IL-8 concentrations to be reduced in media from CH fibroblasts exposed to IL-1β for 24 h but IL-6 concentrations did not differ between genotypes. Results indicate 50 yr of selection has reduced the robustness of the innate immune and acute-phase response to LPS in the contemporary Holstein heifer.
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Affiliation(s)
- G Cousillas-Boam
- Department of Animal Science, University of Minnesota, Saint Paul, MN 55108, USA
| | - W J Weber
- Department of Animal Science, University of Minnesota, Saint Paul, MN 55108, USA
| | - A Benjamin
- Department of Animal and Veterinary Sciences, University of Vermont, Burlington, VT 05405, USA
| | - S Kahl
- Animal Biosciences and Biotechnology Laboratory, U. S. Department of Agriculture, Agricultural Research Service, Beltsville, MD 20705, USA
| | - B J Heins
- Department of Animal Science, University of Minnesota, Morris, MN 56267, USA
| | - T H Elsasser
- Animal Biosciences and Biotechnology Laboratory, U. S. Department of Agriculture, Agricultural Research Service, Beltsville, MD 20705, USA
| | - D E Kerr
- Department of Animal and Veterinary Sciences, University of Vermont, Burlington, VT 05405, USA
| | - B A Crooker
- Department of Animal Science, University of Minnesota, Saint Paul, MN 55108, USA.
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19
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Kharayat NS, Sharma G C, Kumar GR, Bisht D, Chaudhary G, Singh SK, Das GK, Garg AK, Kumar H, Krishnaswamy N. Differential expression of endometrial toll-like receptors (TLRs) and antimicrobial peptides (AMPs) in the buffalo (Bubalus bubalis) with endometritis. Vet Res Commun 2019; 43:261-269. [PMID: 31407222 DOI: 10.1007/s11259-019-09761-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 08/05/2019] [Indexed: 01/28/2023]
Abstract
Toll like receptors (TLRs) and β-defensins expressed in the endometrium are part of the innate uterine defense mechanism (UDM). In the present study, transcriptional profile of TLRs (1-3, 6-8, 10, and) and β-defensins such as lingual antimicrobial peptide (LAP), tracheal antimicrobial peptide (TAP) and bovine neutrophil beta-defensin 4 (BNBD4) were studied. Bubaline genitalia were collected from abattoir and the endometrium was categorized into one of the following seven groups (n = 7/group) based on cyclicity and endometritis: follicular non-endometritis (FNE), luteal non-endometritis (LNE), follicular cytological endometritis (FCE), luteal cytological endometritis (LCE), follicular purulent endometritis (FPE), luteal purulent endometritis (LPE) and acyclic non-endometritis (ANE). Cytological endometritis (CE) was diagnosed by uterine cytology while purulent endometritis (PE) was diagnosed by the presence of purulent or mucopurulent exudate in the uterine lumen. Real time PCR was performed and the relative fold change was analysed. TLR1 and BNBD4 transcripts were not found in the buffalo endometrium. Of all the innate immune genes studied, upregulation of TLR and β-defensins was mostly contributed by the inflammatory status of endometrium. Further, there was a prominent upregulation of TAP in buffaloes with endometritis. However, no association could be found between the inflammatory status of the endometrium and phase of estrous cycle with respect to the expression of TLRs and β-defensins.
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Affiliation(s)
- Nitish Singh Kharayat
- Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, India
| | - Chethan Sharma G
- Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, India
| | - Gandham Ravi Kumar
- Division of Animal Biotechnology, ICAR- Indian Veterinary Research Institute, Izatnagar, Bareilly, India
| | - Deepika Bisht
- Division of Animal Biotechnology, ICAR- Indian Veterinary Research Institute, Izatnagar, Bareilly, India
| | - Gangaram Chaudhary
- Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, India
| | - Sanjay Kumar Singh
- Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, India
| | - Gautum Kumar Das
- Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, India
| | - Anil Kumar Garg
- Division of Animal Nutrition, ICAR- Indian Veterinary Research Institute, Izatnagar, Bareilly, India
| | - Harendra Kumar
- Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, India
| | - Narayanan Krishnaswamy
- Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, India.
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20
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Paiano RB, Gonçalves CGP, Mendes JPG, Bonilla J, Birgel DB, Birgel Junior EH. Comparative biochemical profiles, production and reproduction status of the post-partum dairy cows with and without purulent vaginal discharge. Reprod Domest Anim 2019; 54:1188-1194. [PMID: 31232478 DOI: 10.1111/rda.13496] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 06/11/2019] [Indexed: 01/01/2023]
Abstract
Purulent vaginal discharge (PVD) is a prevalent uterine disease of dairy cows during the puerperium that affects the milk production and affects the profitability of farms. The objectives of this study were to evaluate the biochemical profile, the body condition score, the milk production of cows with PVD and the effects PVD on reproductive performance. A total of 338 Holstein dairy cows aged from 3 to 5 years, from three commercial dairy farms, from Brazil, were used. Blood samples were collected within 25 ± 3 days post-partum from Holstein dairy cows without PVD (control cows, n = 242) and cows with PVD (n = 96), based on scoring of the vaginal discharge. The body condition score and milk production were recorded on the day of sampling. The biochemical profile encompassed albumin, urea, gamma-glutamyl transferase, calcium, fibrinogen and cholesterol concentrations. The number of services per pregnancy was lower (p < 0.01), and the number of days until first insemination and the median time to pregnancy were higher in cows with PVD (p < 0.01) when compared with control cows. Milk production and body condition score were lower (p < 0.01) in cows with PVD than in control group. Cows with PVD had lower (p < 0.05) serum albumin, urea, calcium and cholesterol concentrations, and higher serum gamma-glutamyl transferase activity and fibrinogen concentration than cows without PVD. Our results show that cows with PVD have changes in the biochemical profile and negative effects on production and reproduction performance.
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Affiliation(s)
- Renan B Paiano
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Sciences, University of São Paulo, São Paulo, Brazil
| | | | | | - Jeannine Bonilla
- Department of Food Engineering, College of Animal Science and Food Engineering, University of São Paulo, Pirassununga, Brazil
| | - Daniela B Birgel
- Department of Veterinary Medicine, College of Animal Science and Food Engineering, University of São Paulo, Pirassununga, Brazil
| | - Eduardo H Birgel Junior
- Department of Veterinary Medicine, College of Animal Science and Food Engineering, University of São Paulo, Pirassununga, Brazil
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Jesse FFA, Amira NA, Isa KM, Maqbool A, Ali NM, Chung ELT, Lila MAM. Association between Mannheimia haemolytica infection with reproductive physiology and performance in small ruminants: A review. Vet World 2019; 12:978-983. [PMID: 31528021 PMCID: PMC6702557 DOI: 10.14202/vetworld.2019.978-983] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 05/28/2019] [Indexed: 11/16/2022] Open
Abstract
Mannheimiosis or pneumonic pasteurellosis commonly occurs in small ruminants. Mannheimiosis is caused by Mannheimia haemolytica (M. haemolytica) a Gram-negative coccobacillus producing acute febrile and infectious condition resulting in death of animal if not diagnosed and treated promptly. M. haemolytica serotype A2 is a commensal of the nasopharynx, gaining access to the lungs when host defenses are compromised by stress or infection in small ruminants. Till date, there is a vast literature and research that has been conducted on the pathogenesis of M. haemolytica invariably on respiratory system and its related immune system and mechanisms. From the clinical point of view, infection or diseases involving vital organs will systemically affect the production and performance of the infected animal. Therefore, there is a huge gap of knowledge and research to answer the question whether there is any association between M. haemolytica infection with reproductive physiology and performance in small ruminants and how it affects the productivity level. This review will explore the possibilities of involvement and new potential research to be carried out to determine the involvement of male and female reproductive system with M. haemolytica infection among small ruminants.
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Affiliation(s)
- Faez Firdaus Abdullah Jesse
- Institute of Tropical Agriculture and Food Security, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.,Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Nur Azhar Amira
- Institute of Tropical Agriculture and Food Security, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Kamarulrizal Mat Isa
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Arsalan Maqbool
- Institute of Tropical Agriculture and Food Security, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Naveed Mohamad Ali
- Institute of Tropical Agriculture and Food Security, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Eric Lim Teik Chung
- Institute of Tropical Agriculture and Food Security, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.,Department of Animal Science, Faculty of Agriculture, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Mohd Azmi Mohd Lila
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
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Hadfield JM, Bowdridge EC, Holásková I, Elsasser TH, Dailey RA. Breed-specific differences in the immune response to lipopolysaccharide in ewes. J Anim Sci 2018; 96:4220-4228. [PMID: 30107562 DOI: 10.1093/jas/sky288] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Accepted: 07/23/2018] [Indexed: 12/14/2022] Open
Abstract
Innate immune response to a lipopolysaccharide (LPS) challenge varies among sheep breeds. How different breeds respond to bacterial infections impacts management practices of sheep producers. Hence, clinical response, acute-phase response, and gene expression of pro- and anti-inflammatory markers in peripheral white blood cells (WBCs) were examined after an LPS challenge in Dorset and Suffolk ewes. Ewes received either PBS or 2.5 µg/kg LPS (i.v.) 4 to 5 d after onset of synchronized estrus. Blood was collected via jugular venipuncture intermittently for 24 h to determine WBC counts. Rectal temperatures and observations of behavioral/physical appearances were recorded hourly. After LPS, WBCs decreased the first hour (P = 0.0001) and rectal temperatures (P < 0.0001) increased through 4 h; both returned toward normal 6 h after challenge. Suffolk ewes exhibited greater changes in temperature (P = 0.03) and behavioral/physical responses (P < 0.0001) than Dorset ewes and had an enhanced acute-phase response demonstrated by increased concentrations of plasma haptoglobin (P = 0.04), as well as cortisol concentrations (P = 0.03). Real-time PCR was completed on buffy coat homogenates for expression of pro-inflammatory [CXCL8, IL-6, interferon gamma (IFNG), complement component 3 (C3), toll-like receptor 4 (TLR4), prostaglandin synthase 2 (PTGS2)] and anti-inflammatory [IL-10, superoxide dismutase 2 (SOD2), forkhead box P3 (FOXP3), peroxisome proliferator-activated receptor gamma (PPARG), mannose receptor C type 1 (MRC1), transforming growth factor β (TGFβ)] genes. After LPS treatment, gene expressions increased for CXCL8 (P = 0.0003), TLR4 (P = 0.004), SOD2 (P < 0.0001), and C3 (P = 0.003), while PPARG (P = 0.006) and MRC1 (P = 0.003) decreased. Overall, Dorset ewes had greater expression of TLR4 (P = 0.003), IL-10 (P = 0.045), PPARG (P = 0.002), FOXP3 (P = 0.001), and SOD2 (P = 0.0002), whereas Suffolk ewes had greater expression of IL-6 (P = 0.0007), IFNG (P = 0.02), PTGS2 (P = 0.0002), and C3 (P = 0.008). Suffolk ewes also displayed greater expression of IL-6 (P = 0.002) and C3 (P = 0.0004) in response to LPS. In conclusion, differences in gene expression may explain the enhanced inflammatory response in Suffolk ewes and may predispose Suffolk ewes to be more responsive to bacterial infection than Dorset ewes.
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Affiliation(s)
- Jessalyn M Hadfield
- Division of Animal and Nutritional Sciences, West Virginia University, Morgantown, WV
| | - Elizabeth C Bowdridge
- Division of Animal and Nutritional Sciences, West Virginia University, Morgantown, WV
| | - Ida Holásková
- West Virginia Agriculture and Forestry Experiment Station, Morgantown, WV
| | - Ted H Elsasser
- Agricultural Research Service, Animal Biosciences and Biotechnology Laboratory, USDA, Beltsville, MD
| | - Robert A Dailey
- Division of Animal and Nutritional Sciences, West Virginia University, Morgantown, WV
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Sheldon IM, Cronin JG, Bromfield JJ. Tolerance and Innate Immunity Shape the Development of Postpartum Uterine Disease and the Impact of Endometritis in Dairy Cattle. Annu Rev Anim Biosci 2018; 7:361-384. [PMID: 30359085 DOI: 10.1146/annurev-animal-020518-115227] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Bacteria are ubiquitous in the bovine uterus after parturition, but 50 years ago, cows tolerated these bacteria and few animals developed uterine disease. Now, up to 40% of dairy cattle develop postpartum uterine disease. Uterine disease causes infertility by compromising the function of not only the endometrium but also the ovary. Animals defend themselves against pathogens using tolerance and resistance mechanisms. Tolerance is the ability to limit the disease severity induced by a given pathogen burden. Resistance is the ability to limit the pathogen burden and is usually the function of immunity. Endometrial cells contribute to tolerance and have roles in innate immunity and the inflammatory response to pathogens. However, failures in endometrial tolerance and the character of the inflammatory response shape postpartum uterine disease. We propose that uterine health is more dependent on the ability of the endometrium to tolerate pathogens than the ability to resist invading bacteria.
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Affiliation(s)
- I Martin Sheldon
- Institute of Life Science, Swansea University Medical School, Swansea University, Swansea, SA2 8PP, United Kingdom; ,
| | - James G Cronin
- Institute of Life Science, Swansea University Medical School, Swansea University, Swansea, SA2 8PP, United Kingdom; ,
| | - John J Bromfield
- Department of Animal Sciences, University of Florida, Gainesville, Florida 32611-0910, USA;
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Socha BM, Łada P, Szczepańska AA, Łupicka M, Korzekwa AJ. The influence of experimentally induced endometritis on the PPAR expression profile in the bovine endometrium. Theriogenology 2018; 122:74-83. [PMID: 30243137 DOI: 10.1016/j.theriogenology.2018.09.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 09/06/2018] [Accepted: 09/12/2018] [Indexed: 02/06/2023]
Abstract
Peroxisome proliferator-activated receptors (PPARs) are ligand-activated transcription factors of the nuclear receptor superfamily. The PPARs activity can be modified e.g. by arachidonic acid metabolites. Escherichia coli (E. coli) is one of the main infectious agent of endometritis in dairy cows. We hypothesized that PPAR expression profile change in the bovine endometrium under the influence of LPS or E. coli. In experiment 1, endometrial explants were obtained post mortem from heifers and incubated without (control) or with LPS for 12, 24, 48, 72 and 96 h. In experiment 2, heifers were intrauterine infused with 0.9% NaCl (control) or with E. coli suspension in 0.9% NaCl. Endometrial biopsies were performed before (0 h) and 12, 24, 48, 72, 96 h after the infusions. In experiment 1, the increase in protein expression was observed for PPARα 48 h, for PPARβ/δ 24, 72 and 96 h, whereas for PPARγ 12, 24 and 96 h after LPS treatment relative to the control groups. In experiment 2, the up-regulation in protein expression was observed for PPARα 48 and 72 h, for PPARβ/δ 72 and 96 h, for PPARγ1 and PPARγ2 12 and 96 h after the intrauterine infusion with E. coli suspension compared to the control group. Changes in mRNA and protein PPAR expression profile in endometrial explants under the exposure of LPS indicate participation of these nuclear receptors in signal transduction during stimulation with LPS. The patterns of mRNA and protein PPAR expression in endometrial bioptates suggest that during experimentally induced endometritis in vivo, PPARs role may be connected both with enhancement of inflammation as well restoring physiological conditions in uterus.
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Affiliation(s)
- B M Socha
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research of Polish Academy of Sciences (IARFR PAS), Tuwima Str. 10, 10-747, Olsztyn, Poland
| | - P Łada
- Veterinary Clinic 3VET, Ludowa Str. 78/3, 18-200 Wysokie Mazowieckie, Poland
| | - A A Szczepańska
- Department of Biodiversity Protection, IARFR PAS, Tuwima Str. 10, 10-747, Olsztyn, Poland
| | - M Łupicka
- Department of Biodiversity Protection, IARFR PAS, Tuwima Str. 10, 10-747, Olsztyn, Poland
| | - A J Korzekwa
- Department of Biodiversity Protection, IARFR PAS, Tuwima Str. 10, 10-747, Olsztyn, Poland.
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Sheldon IM, Cronin JG, Pospiech M, Turner ML. Symposium review: Mechanisms linking metabolic stress with innate immunity in the endometrium. J Dairy Sci 2018; 101:3655-3664. [PMID: 28888597 DOI: 10.3168/jds.2017-13135] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 07/25/2017] [Indexed: 01/14/2023]
Abstract
Bacterial infections of the uterus after parturition are ubiquitous in dairy cattle and often cause uterine disease, such as metritis or endometritis. However, the metabolic stress associated with milk production increases the risk of developing disease. Resolution of bacterial infections requires rapid and robust innate immune responses, which depend on host cell receptors recognizing pathogen-associated molecular patterns, such as lipopolysaccharide (LPS) from gram-negative bacteria. Here, we argue that metabolic stress impairs the inflammatory response to pathogens. Glucose and glutamine are the major energy sources for cells, but their abundance is reduced in postpartum dairy cows. Furthermore, inflammatory responses exacerbate metabolic stress, with animals and tissues consuming more glucose when challenged with LPS. However, depriving endometrial tissue of glucose or glutamine impairs the secretion of IL-1β, IL-6, and IL-8 in response to pathogen-associated molecular patterns. Glycolysis and the intracellular sensor of energy, AMP-activated protein kinase, are important for the response to LPS because perturbing glycolysis or AMP-activated protein kinase activity reduces the secretion of IL-1β, IL-6, and IL-8 in the endometrium. The mevalonate pathway for cellular cholesterol synthesis may also be linked to immunity, as inhibition of the terminal enzyme in the pathway, squalene synthase, reduces inflammatory responses to pathogenic bacteria and LPS. In contrast, only modest effects on inflammation are found when modulating the sensor of cellular nutrient satiety, mammalian target of rapamycin, or the endocrine regulator of metabolism, insulin-like growth factor-1. We suggest that stressing cellular metabolism increases the risk of uterine disease by impairing endometrial defenses.
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Affiliation(s)
- I Martin Sheldon
- Swansea University Medical School, Swansea University, Swansea, SA2 8PP, United Kingdom.
| | - James G Cronin
- Swansea University Medical School, Swansea University, Swansea, SA2 8PP, United Kingdom
| | - Mateusz Pospiech
- Swansea University Medical School, Swansea University, Swansea, SA2 8PP, United Kingdom
| | - Matthew L Turner
- Swansea University Medical School, Swansea University, Swansea, SA2 8PP, United Kingdom
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Mandhwani R, Bhardwaz A, Kumar S, Shivhare M, Aich R. Insights into bovine endometritis with special reference to phytotherapy. Vet World 2017; 10:1529-1532. [PMID: 29391697 PMCID: PMC5771181 DOI: 10.14202/vetworld.2017.1529-1532] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 12/01/2017] [Indexed: 11/16/2022] Open
Abstract
Postpartum reproductive disorders cause heavy economic losses in dairy sector. Uterine infections include endometritis, metritis, mucometra, and pyometra. Postpartum endometritis in dairy cows has been defined as inflammation of endometrium occurring 21 days or more after parturition without systemic signs of illness. The treatment of endometritis with antimicrobials has met with varying degrees of success, inconsistent recovery rate, high cost of treatment, milk disposal, emergence of microbial resistance, and reduced phagocytic activity of polymorphonuclear leukocytes In our country, around 20,000 medicinal plant species have been recorded, but more than 500 traditional communities use about 800 plant species for curing different diseases. Many herbs such as garlic, neem, ashwagandha, and turmeric have been tried for the treatment of endometritis in cows with a good success.
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Affiliation(s)
- Ritika Mandhwani
- Department of Veterinary Gynecology & Obstetrics, College of Veterinary Science, Mhow, Nanaji Deshmukh Veterinary Science University, Jabalpur-453446, Madhya Pradesh, India
| | - Anavil Bhardwaz
- Department of Veterinary Gynecology & Obstetrics, College of Veterinary Science, Mhow, Nanaji Deshmukh Veterinary Science University, Jabalpur-453446, Madhya Pradesh, India
| | - Sudarshan Kumar
- Department of Veterinary Gynecology & Obstetrics, College of Veterinary Science, Mhow, Nanaji Deshmukh Veterinary Science University, Jabalpur-453446, Madhya Pradesh, India
| | - Madhu Shivhare
- Department of Veterinary Gynecology & Obstetrics, College of Veterinary Science, Mhow, Nanaji Deshmukh Veterinary Science University, Jabalpur-453446, Madhya Pradesh, India
| | - Ranjit Aich
- Department of Veterinary Biochemistry, College of Veterinary Science, Mhow, Nanaji Deshmukh Veterinary Science University, Jabalpur - 453446, Madhya Pradesh, India
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Bragança JFM, Maciel JM, Girardini LK, Machado SA, da Rocha JFX, Tonin AA, da Rocha RX. Influence of a device intravaginal to synchronization/induction of estrus and its reuse in sheep vaginal flora. ACTA ACUST UNITED AC 2017. [DOI: 10.1007/s00580-017-2542-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Piccinno M, Sciorsci R, Masciopinto V, De Rosa M, Rizzo A. Effects of d-cloprostenol on different layers and regions of the bovine uterus during the follicular and luteal phases. Theriogenology 2017; 96:92-96. [DOI: 10.1016/j.theriogenology.2017.04.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 03/28/2017] [Accepted: 04/04/2017] [Indexed: 12/27/2022]
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Shirozu T, Iwano H, Ogiso T, Suzuki T, Balboula AZ, Bai H, Kawahara M, Kimura K, Takahashi H, Rulan B, Kim SW, Yanagawa Y, Nagano M, Imakawa K, Takahashi M. Estrous cycle stage-dependent manner of type I interferon-stimulated genes induction in the bovine endometrium. J Reprod Dev 2017; 63:211-220. [PMID: 28239027 PMCID: PMC5481623 DOI: 10.1262/jrd.2016-176] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Interferon tau (IFN-τ) is a ruminant-specific type I IFN secreted by a conceptus before its attachment to the uterus. IFN-τ induces the expression of IFN-stimulated genes (ISGs) via the type I IFN receptor (IFNAR), which is
composed of IFNAR1 and IFNAR2 subunits in the endometrium. However, expression patterns of IFNARs during the estrous cycle have not been reported. We hypothesized that the response to a type I IFN changes along with IFNARs and the
IFN-regulatory factors (IRFs) driving transcription of IFN signal-related genes and modulating a type I IFN signal during the estrous cycle. We investigated the estrous cycle stage-dependent type I IFN induction of ISGs and
expression patterns of IFN signal-related genes in bovine endometrial tissues. Endometrial tissue pieces collected from bovine uteri at each estrous stage (early, mid, and late) were cultured with or without recombinant bovine
IFN-α or concentrated pregnant uterine flushing (PUF) on day 18 after confirming the presence of a conceptus. IFN-α and PUF each significantly increased the expression of ISGs in endometrial tissues. The induction levels of the
typical ISGs (MX1-a and ISG15) were significantly higher at the mid stage and correlated with high expression of IRFs at the mid stage. The immunostaining of IFNARs showed strong
fluorescence intensities in luminal and glandular epithelia at the early and mid stages. Collectively, these results suggest that the endometrium exhibits estrous cycle stage-dependent responsiveness to type I IFN that may be
associated with the expression of IFNARs and IRFs for pregnancy recognition.
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Affiliation(s)
- Takahiro Shirozu
- Laboratory of Animal Genetics and Reproduction, Department of Animal Science, Research Faculty of Agriculture, Hokkaido University, Hokkaido 060-8589, Japan
| | - Hiroki Iwano
- Laboratory of Animal Genetics and Reproduction, Department of Animal Science, Research Faculty of Agriculture, Hokkaido University, Hokkaido 060-8589, Japan
| | - Takatoshi Ogiso
- Laboratory of Animal Genetics and Reproduction, Department of Animal Science, Research Faculty of Agriculture, Hokkaido University, Hokkaido 060-8589, Japan
| | - Toshiyuki Suzuki
- Laboratory of Animal Genetics and Reproduction, Department of Animal Science, Research Faculty of Agriculture, Hokkaido University, Hokkaido 060-8589, Japan
| | - Ahmed Z Balboula
- Department of Theriogenology, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Hanako Bai
- Laboratory of Animal Genetics and Reproduction, Department of Animal Science, Research Faculty of Agriculture, Hokkaido University, Hokkaido 060-8589, Japan
| | - Manabu Kawahara
- Laboratory of Animal Genetics and Reproduction, Department of Animal Science, Research Faculty of Agriculture, Hokkaido University, Hokkaido 060-8589, Japan
| | - Koji Kimura
- Laboratory of Reproductive Physiology, Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan
| | - Hitomi Takahashi
- Animal Breeding and Reproduction Research Division, NARO Institute of Livestock and Grassland Science, Ibaraki 305-8517, Japan
| | - Bai Rulan
- Laboratory of Animal Breeding, Veterinary Medical Sciences, Graduate School of Agricultural and Life Science, The University of Tokyo, Tokyo 113-8657, Japan
| | - Sung-Woo Kim
- National Institute of Animal Science, Animal Genetic Resources Research Center, Namwon 590-832, Republic of Korea
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Hokkaido 060-8589, Japan
| | - Masashi Nagano
- Laboratory of Theriogenology, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Hokkaido 060-8589, Japan
| | - Kazuhiko Imakawa
- Laboratory of Animal Breeding, Veterinary Medical Sciences, Graduate School of Agricultural and Life Science, The University of Tokyo, Tokyo 113-8657, Japan
| | - Masashi Takahashi
- Laboratory of Animal Genetics and Reproduction, Department of Animal Science, Research Faculty of Agriculture, Hokkaido University, Hokkaido 060-8589, Japan
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Effectiveness of intrauterine treatment with cephapirin in dairy cows with purulent vaginal discharge. Theriogenology 2017; 89:305-317. [DOI: 10.1016/j.theriogenology.2016.09.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 09/05/2016] [Accepted: 09/06/2016] [Indexed: 11/22/2022]
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Bogado Pascottini O, Hostens M, Sys P, Vercauteren P, Opsomer G. Cytological endometritis at artificial insemination in dairy cows: Prevalence and effect on pregnancy outcome. J Dairy Sci 2016; 100:588-597. [PMID: 27865501 DOI: 10.3168/jds.2016-11529] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 09/30/2016] [Indexed: 11/19/2022]
Abstract
The aims of our field study in dairy cows were (1) to consolidate cytotape (CT) as a valid technique to diagnose cytological endometritis (CYTO) during artificial insemination (AI); (2) to establish a cutoff point concerning the polymorphonuclear cells (PMN) proportion to diagnose CYTO at AI; (3) to assess the prevalence of CYTO at AI; and (4) to evaluate the effect of CYTO on the pregnancy outcome of that AI. The investigation was performed using 1,625 AI-CT samples harvested from 873 Holstein-Friesian cows from 18 dairy farms in the Flemish region of Belgium. The CT device consisted of adapting a 1.5-cm piece of paper tape on the top of a conventional AI catheter covered with a double guard sheet, allowing an endometrial cytology sample to be taken when performing an AI. A receiving operator characteristic curve was built to assess the threshold level above which the PMN proportion significantly affected the AI success. Multilevel generalized mixed-effect models were built to identify factors affecting the pregnancy outcome of the AI under investigation. Only 7 samples (0.4%) harvested in 5 cows were discarded because of low-quality parameters. The cutoff point for CYTO at AI was set at ≥1% PMN (sensitivity=33.8%, specificity=88.6%). Prevalence of CYTO at AI was 27.8%. The conception rate for CYTO-positive samples was 32.7%, whereas it was 47% for CYTO-negative samples. A CYTO-negative AI had 1.8 [odds ratio (OR)] more chances to become pregnant than a CYTO-positive one. Other factors identified as detrimental for the pregnancy outcome were body condition score ≤1.5 (OR=0.6), relative 305-d milk yield (OR=0.9), dystocia (OR=0.3), parity ≥2 (OR=0.7), and warm months of the year. In conclusion, CT is a consolidated technique to diagnose CYTO at AI, PMN 1% is the threshold level to diagnose CYTO at AI, around one-quarter of inseminated uteri suffer from CYTO, and affected uteri having a significantly lower chance to become pregnant from that insemination.
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Affiliation(s)
- O Bogado Pascottini
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Merelbeke 9820, Belgium.
| | - M Hostens
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Merelbeke 9820, Belgium
| | - P Sys
- CRV Holding BV, Van Thorenburghlaan 14, Oosterzele 9860, Belgium
| | - P Vercauteren
- CRV Holding BV, Van Thorenburghlaan 14, Oosterzele 9860, Belgium
| | - G Opsomer
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Merelbeke 9820, Belgium
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Pascottini OB, Hostens M, Dini P, Van Eetvelde M, Vercauteren P, Opsomer G. Prevalence of cytological endometritis and effect on pregnancy outcomes at the time of insemination in nulliparous dairy heifers. J Dairy Sci 2016; 99:9051-9056. [PMID: 27592429 DOI: 10.3168/jds.2016-11348] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 07/27/2016] [Indexed: 11/19/2022]
Abstract
The objectives of the present study were to assess the prevalence of cytological endometritis (CYTO) at the time of artificial insemination (AI) and its effect on pregnancy outcomes in nulliparous dairy heifers. In total, 512 endometrial cytology samples were taken during AI from 351 nulliparous Holstein-Friesian heifers using cytotape (a 1.5-cm piece of paper tape rolled on the top of an AI catheter covered with a double guard sheet). After sampling, the top of the AI catheter was gently rolled onto a glass slide, air-dried, and stained using Diff-Quick (Fisher Diagnostics, Newark, DE). For each slide, 300 nucleated cells were counted, and the polymorphonuclear cell ratio (% PMN) was assessed at 400× magnification. We constructed a receiver operating characteristic curve to find the cutoff point at which sensitivity and specificity (% PMN) affected pregnancy outcomes. The receiver operating characteristic curve revealed that the threshold level for diagnosing CYTO in nulliparous dairy heifers was 1% PMN. An insemination was considered successful when pregnancy was confirmed by rectal palpation at least 45d post-AI. Heifers were considered not pregnant when they received a subsequent insemination or were diagnosed empty by rectal palpation. We built multilevel generalized mixed-effect models to test factors affecting pregnancy outcomes and the occurrence of CYTO at AI. We excluded 16 samples harvested from 12 heifers due to poor sample quality or unavailability of reproductive data. Of the 496 AI samples, the prevalence of CYTO at AI was 7.86% (n=39). The conception rate was 62.8% (n=287) in CYTO-negative samples (n=457) and 38.46% (n=15) in CYTO-positive samples. Risk factors for non-pregnancy were a previous AI (odds ratio 2.96; 95% confidence interval: 1.21-7.26) and the interaction between CYTO and previous AI. The only risk factor identified as being associated with the occurrence of CYTO was a previous AI (odds ratio 4.7; 95% confidence interval: 2.15-10.34). The performance of unsuccessful inseminations significantly affects reproductive outcomes in subsequent AI and may lead to CYTO in nulliparous dairy heifers.
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Affiliation(s)
- O Bogado Pascottini
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Merelbeke 9820, Belgium.
| | - M Hostens
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Merelbeke 9820, Belgium
| | - P Dini
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Merelbeke 9820, Belgium
| | - M Van Eetvelde
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Merelbeke 9820, Belgium
| | - P Vercauteren
- CRV Holding BV, Van Thorenburghlaan 14, 9860 Oosterzele, Belgium
| | - G Opsomer
- Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Merelbeke 9820, Belgium
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Identifying diagnostic endocrine markers and changes in endometrial gene expressions during pyometra in cats. Reprod Biol 2016; 16:174-80. [PMID: 27288342 DOI: 10.1016/j.repbio.2015.12.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 12/04/2015] [Accepted: 12/27/2015] [Indexed: 11/22/2022]
Abstract
Pyometra is a significant reproductive problem in cats. The aims of this study were to evaluate (i) the immunological profile of queens by studying plasma concentrations of metabolites of prostacyclin I2 (6-keto-PGF1α), leukotriene B4 (LTB4) and leukotriene C4 (LTC4); and (ii) the gene transcription profiles of Toll-like receptors (TLRs) 2 and 4 (TLR2/4), PGE2-synthase (PGES), PGF2α-synthase (PGFS) and prostaglandin-endoperoxide synthase 2 (PTGS2) in the feline endometrium throughout the estrous cycle, after medroxyprogesterone acetate (MPA) treatment and during pyometra. The concentration of plasma 6-keto-PGF1α in pyometra was increased in comparison to other groups studied (p<0.01). Endometrial mRNA coding for TLR2 was up-regulated in cats suffering from pyometra compared to other groups (p<0.001). Expression of mRNA for TLR4 was up-regulated in endometria originating from MPA-treated cats, pyometra and late diestrus cats, compared with tissues from cats during estrus and anestrus (p<0.05). As expected, endometrial mRNA for PTGS2 was up-regulated only in pyometra, compared with other groups (p<0.001). Similarly, endometrial mRNA for PGFS was up-regulated in pyometra, compared with endometria from anestrus, late diestrus and from MPA-treated cats (p<0.05), or from cats during estrus (p<0.01). Overall, these results indicate that plasma concentrations of LTB4 and LTC4 are not useful diagnostic markers since they were not increased in queens with pyometra, in contrast to 6-keto-PGF1α. In addition, treatment with MPA evoked neither endocrine nor molecular changes in endometria of cats.
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Shimizu T. Molecular and cellular mechanisms for the regulation of ovarian follicular function in cows. J Reprod Dev 2016; 62:323-9. [PMID: 27097851 PMCID: PMC5004786 DOI: 10.1262/jrd.2016-044] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Ovary is an important organ that houses the oocytes
(reproductive cell). Oocyte growth depends on the
function of follicular cells such as the granulosa
and theca cells. Two-cell two gonadotropin systems
are associated with oocyte growth and follicular
cell functions. In addition to these systems, it
is also known that several growth factors regulate
oocyte growth and follicular cell functions.
Vascular endothelial growth factor (VEGF) is
involved in thecal vasculature during follicular
development and the suppression of granulosa cell
apoptosis. Metabolic factors such as insulin,
growth hormone (GH) and insulin-like growth factor
1 (IGF-1) also play critical roles in the process
of follicular development and growth. These
factors are associated not only with follicular
development, but also with follicular cell
function. Steroid hormones (estrogens, androgens,
and progestins) that are secreted from follicular
cells influence the function of the female genital
tract and its affect the susceptibility to
bacterial infection. This review covers our
current understanding of the mechanisms by which
gonadotrophins and/or steroid hormones regulate
the growth factors in the follicular cells of the
bovine ovary. In addition, this review describes
the effect of endotoxin on the function of
follicular cells.
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Affiliation(s)
- Takashi Shimizu
- Graduate School of Animal and Food Hygiene, Obihiro University of Agriculture and Veterinary Medicine, Hokkaido 080-8555, Japan
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Deng Q, Odhiambo JF, Farooq U, Lam T, Dunn SM, Gänzle MG, Ametaj BN. Intravaginally administered lactic acid bacteria expedited uterine involution and modulated hormonal profiles of transition dairy cows. J Dairy Sci 2015; 98:6018-28. [PMID: 26188583 DOI: 10.3168/jds.2014-8559] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Accepted: 05/28/2015] [Indexed: 12/14/2022]
Abstract
The objective of this investigation was to evaluate whether intravaginal infusion of lactic acid bacteria (LAB) around parturition could expedite involution rate of the uterus and improve reproductive performance of postpartum dairy cows. One hundred pregnant Holstein dairy cows were assigned to 1 of 3 experimental groups: (1) 1 dose of LAB in wk -2 and -1 and 1 dose of carrier in wk 1 relative to the expected day of parturition (TRT1); (2) 1 dose of LAB in wk -2, -1, and 1 (TRT2); and (3) 1 dose of carrier in wk -2, -1, and 1 (CTR). The LAB treatment was a lyophilized mixture of Lactobacillus sakei FUA3089, Pediococcus acidilactici FUA3138, and Pediococcus acidilactici FUA3140 with a cell count of 10(8) to 10(9) cfu/dose. Uterine involution and ovarian activity was evaluated by transrectal ultrasonography weekly from d 7 to 49 postpartum. Blood samples were collected from a subset of cows to quantify prostaglandin (PG) F2α metabolite (PGFM), PGE2, and progesterone. Cows treated with LAB had smaller cross-sectional areas of gravid horn and uterine body on d 14 postpartum. Cows in TRT2 resumed ovarian cyclicity earlier, as indicated by increased concentrations of serum progesterone. Cows in TRT1 had fewer days open than those in the CTR (110 vs. 150 d), whereas cows in TRT2 and CTR did not differ in days open. In addition, both TRT1 and TRT2 increased the concentrations of PGFM at calving week, and cows in TRT2 also had greater concentrations of PGE2 on d 14 and d 21 postpartum relative to CTR. Overall, cows treated intravaginally with LAB had smaller gravid horn and uterine body on d 14 postpartum than those in the CTR group. Treatment with LAB also increased concentrations of serum PGFM (3,533±328pg/mL in TRT1, 4,470±372pg/mL in TRT2, and 2,000±328pg/mL in CTR on d 0, respectively), with the TRT1 group having fewer cows that resumed ovarian cyclicity but fewer days open compared with both TRT2 and CTR groups. More research is warranted to better understand the mechanism(s) by which intravaginal LAB expedited uterine involution and affected hormonal profiles.
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Affiliation(s)
- Q Deng
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5
| | - J F Odhiambo
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5
| | - U Farooq
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5
| | - T Lam
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5
| | - S M Dunn
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5
| | - M G Gänzle
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5
| | - B N Ametaj
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5.
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Healy LL, Cronin JG, Sheldon IM. Polarized Epithelial Cells Secrete Interleukin 6 Apically in the Bovine Endometrium. Biol Reprod 2015; 92:151. [PMID: 25740541 DOI: 10.1095/biolreprod.115.127936] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Accepted: 03/02/2015] [Indexed: 11/01/2022] Open
Abstract
Endometrial epithelial cells are the first line of defense against pathogenic bacteria infecting the uterus. Innate immune responses by these polarized epithelial cells to bacteria and tissue damage are characterized by release of the chemokine (C-X-C motif) ligand 8 (CXCL8) to attract immune cells from the circulation to the site of infection, where they are regulated by the cytokine interleukin (IL) 6. The present study tested the hypothesis that IL6 is predominantly secreted apically from polarized bovine endometrial epithelial cells in response to stimuli associated with bacterial infection and tissue damage. In postpartum animals, concentrations of IL6, but not of CXCL8, were higher in uterine mucus than in peripheral blood. In vitro, polarized endometrial epithelial cells only secreted IL6 apically when treated with bacteria, the pathogen-associated molecule lipopolysaccharide, or the damage-associated molecule IL1alpha, whereas CXCL8 accumulated apically and basolaterally. Furthermore, IL6 accumulated apically irrespective of whether lipopolysaccharide was applied to the apical or basolateral surface of epithelial cells. Secretion of IL6 from epithelial cells was dependent on the trans-Golgi network but was not affected by exogenous ovarian steroids or by coculture with stromal cells. However, a confluent epithelium was essential to protect underlying stromal cells against noxious challenges, including bacteria, lipopolysaccharide, IL1alpha, and a cytolysin. In summary, when a confluent endometrial epithelial cell barrier is faced with infection and damage, chemokines attract immune cells to the uterine lumen, but IL6 is solely secreted apically to ensure immune cells are only exposed to IL6 once they reach the lumen.
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Affiliation(s)
- Laura L Healy
- Institute of Life Science, College of Medicine, Swansea University, Singleton Park, Swansea, United Kingdom
| | - James G Cronin
- Institute of Life Science, College of Medicine, Swansea University, Singleton Park, Swansea, United Kingdom
| | - I Martin Sheldon
- Institute of Life Science, College of Medicine, Swansea University, Singleton Park, Swansea, United Kingdom
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The role of toll-like receptors 2 and 4 in the pathogenesis of feline pyometra. Theriogenology 2015; 83:596-603. [DOI: 10.1016/j.theriogenology.2014.10.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Revised: 10/17/2014] [Accepted: 10/27/2014] [Indexed: 11/21/2022]
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Brodzki P, Kostro K, Brodzki A, Niemczuk K, Lisiecka U. Cytometric analysis of surface molecules of leucocytes and phagocytic activity of granulocytes and monocytes/macrophages in cows with pyometra. Reprod Domest Anim 2014; 49:858-64. [PMID: 25124985 DOI: 10.1111/rda.12381] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2014] [Accepted: 06/19/2014] [Indexed: 01/17/2023]
Abstract
Pyometra is a serious problem in dairy cow herds, causing large economic losses due to infertility. The development of pyometra depends mainly on the immunological status of the cow. The aim of the study was a comparative evaluation of selected indicators involving non-specific and specific immunity in cows with pyometra and in cows without inflammation of the uterus. The study was performed in 20 cows, which were divided into two groups: pyometra group and healthy group, each comprising 10 cows, based on the results of cytological and ultrasonographic tests. A flow cytometric analysis was performed for the surface molecules CD4, CD8, CD14, CD21, CD25 and CD4(+) CD25(+) on leucocytes, and the phagocytic activity was determined from granulocytes and monocytes/macrophages in the peripheral blood and uterine washings, respectively. It was demonstrated that the percentage of phagocytic granulocytes and monocytes/macrophages in both the peripheral blood and uterine washings was significantly lower in cows with pyometra compared with the healthy group (p < 0.001). Significantly (p ≤ 0.001) lower percentage of CD4(+) , CD14(+) , CD25(+) and CD4(+) CD25(+) phenotype leucocytes was also observed in the peripheral blood of cows from the pyometra group, along with a significantly higher (p < 0.001) percentage of CD8(+) and CD21(+) lymphocytes as compared to the healthy group. The results of work indicate that disfunction of cell immunity coexisting with pyometra may be caused by a bacterial infection and the presence of blocking agents (IL-10), released by the increasing number of CD8(+) lymphocytes what leads to the advanced inflammation of uterus.
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Affiliation(s)
- P Brodzki
- Department and Clinic of Reproduction, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Lublin, Poland
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Manes J, Hozbor F, Alberio R, Ungerfeld R. Intravaginal placebo sponges affect negatively the conception rate in sheep. Small Rumin Res 2014. [DOI: 10.1016/j.smallrumres.2014.05.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Sheldon IM, Cronin JG, Healey GD, Gabler C, Heuwieser W, Streyl D, Bromfield JJ, Miyamoto A, Fergani C, Dobson H. Innate immunity and inflammation of the bovine female reproductive tract in health and disease. Reproduction 2014; 148:R41-51. [PMID: 24890752 DOI: 10.1530/rep-14-0163] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Mammalian reproductive physiology and the development of viviparity co-evolved with inflammation and immunity over millennia. Many inflammatory mediators contribute to paracrine and endocrine signalling, and the maintenance of tissue homeostasis in the female reproductive tract. However, inflammation is also a feature of microbial infections of the reproductive tract. Bacteria and viruses commonly cause endometritis, perturb ovarian follicle development and suppress the endocrine activity of the hypothalamus and pituitary in cattle. Innate immunity is an evolutionary ancient system that orchestrates host cell inflammatory responses aimed at eliminating pathogens and repairing damaged tissue. Pattern recognition receptors on host cells bind pathogen-associated molecular patterns and damage-associated molecular patterns, leading to the activation of intracellular MAPK and NFκB signalling pathways and the release of inflammatory mediators. Inflammatory mediators typically include the interleukin cytokines IL1β and IL6, chemokines such as IL8, interferons and prostaglandins. This review outlines the mechanisms of inflammation and innate immunity in the bovine female reproductive tract during health and disease condition.
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Affiliation(s)
- I Martin Sheldon
- College of MedicineInstitute of Life Science, Swansea University, Singleton Park, Swansea SA2 8PP, UKInstitute of Veterinary BiochemistryClinic of Animal ReproductionFreie Universitaet Berlin, Berlin, GermanyClinic for Ruminants with Ambulatory and Herd Health ServicesCentre for Clinical Veterinary Medicine, Ludwig Maximilian University of Munich, Oberschleißheim, GermanyDepartment of Animal SciencesUniversity of Florida, Gainesville, Florida 32608, USAGraduate School for Animal and Food HygieneObihiro University of Agriculture and Veterinary Medicine, Obihiro 080-8555, JapanSchool of Veterinary ScienceUniversity of Liverpool, Leahurst, Neston CH64 7TE, UK
| | - James G Cronin
- College of MedicineInstitute of Life Science, Swansea University, Singleton Park, Swansea SA2 8PP, UKInstitute of Veterinary BiochemistryClinic of Animal ReproductionFreie Universitaet Berlin, Berlin, GermanyClinic for Ruminants with Ambulatory and Herd Health ServicesCentre for Clinical Veterinary Medicine, Ludwig Maximilian University of Munich, Oberschleißheim, GermanyDepartment of Animal SciencesUniversity of Florida, Gainesville, Florida 32608, USAGraduate School for Animal and Food HygieneObihiro University of Agriculture and Veterinary Medicine, Obihiro 080-8555, JapanSchool of Veterinary ScienceUniversity of Liverpool, Leahurst, Neston CH64 7TE, UK
| | - Gareth D Healey
- College of MedicineInstitute of Life Science, Swansea University, Singleton Park, Swansea SA2 8PP, UKInstitute of Veterinary BiochemistryClinic of Animal ReproductionFreie Universitaet Berlin, Berlin, GermanyClinic for Ruminants with Ambulatory and Herd Health ServicesCentre for Clinical Veterinary Medicine, Ludwig Maximilian University of Munich, Oberschleißheim, GermanyDepartment of Animal SciencesUniversity of Florida, Gainesville, Florida 32608, USAGraduate School for Animal and Food HygieneObihiro University of Agriculture and Veterinary Medicine, Obihiro 080-8555, JapanSchool of Veterinary ScienceUniversity of Liverpool, Leahurst, Neston CH64 7TE, UK
| | - Christoph Gabler
- College of MedicineInstitute of Life Science, Swansea University, Singleton Park, Swansea SA2 8PP, UKInstitute of Veterinary BiochemistryClinic of Animal ReproductionFreie Universitaet Berlin, Berlin, GermanyClinic for Ruminants with Ambulatory and Herd Health ServicesCentre for Clinical Veterinary Medicine, Ludwig Maximilian University of Munich, Oberschleißheim, GermanyDepartment of Animal SciencesUniversity of Florida, Gainesville, Florida 32608, USAGraduate School for Animal and Food HygieneObihiro University of Agriculture and Veterinary Medicine, Obihiro 080-8555, JapanSchool of Veterinary ScienceUniversity of Liverpool, Leahurst, Neston CH64 7TE, UK
| | - Wolfgang Heuwieser
- College of MedicineInstitute of Life Science, Swansea University, Singleton Park, Swansea SA2 8PP, UKInstitute of Veterinary BiochemistryClinic of Animal ReproductionFreie Universitaet Berlin, Berlin, GermanyClinic for Ruminants with Ambulatory and Herd Health ServicesCentre for Clinical Veterinary Medicine, Ludwig Maximilian University of Munich, Oberschleißheim, GermanyDepartment of Animal SciencesUniversity of Florida, Gainesville, Florida 32608, USAGraduate School for Animal and Food HygieneObihiro University of Agriculture and Veterinary Medicine, Obihiro 080-8555, JapanSchool of Veterinary ScienceUniversity of Liverpool, Leahurst, Neston CH64 7TE, UK
| | - Dominik Streyl
- College of MedicineInstitute of Life Science, Swansea University, Singleton Park, Swansea SA2 8PP, UKInstitute of Veterinary BiochemistryClinic of Animal ReproductionFreie Universitaet Berlin, Berlin, GermanyClinic for Ruminants with Ambulatory and Herd Health ServicesCentre for Clinical Veterinary Medicine, Ludwig Maximilian University of Munich, Oberschleißheim, GermanyDepartment of Animal SciencesUniversity of Florida, Gainesville, Florida 32608, USAGraduate School for Animal and Food HygieneObihiro University of Agriculture and Veterinary Medicine, Obihiro 080-8555, JapanSchool of Veterinary ScienceUniversity of Liverpool, Leahurst, Neston CH64 7TE, UK
| | - John J Bromfield
- College of MedicineInstitute of Life Science, Swansea University, Singleton Park, Swansea SA2 8PP, UKInstitute of Veterinary BiochemistryClinic of Animal ReproductionFreie Universitaet Berlin, Berlin, GermanyClinic for Ruminants with Ambulatory and Herd Health ServicesCentre for Clinical Veterinary Medicine, Ludwig Maximilian University of Munich, Oberschleißheim, GermanyDepartment of Animal SciencesUniversity of Florida, Gainesville, Florida 32608, USAGraduate School for Animal and Food HygieneObihiro University of Agriculture and Veterinary Medicine, Obihiro 080-8555, JapanSchool of Veterinary ScienceUniversity of Liverpool, Leahurst, Neston CH64 7TE, UK
| | - Akio Miyamoto
- College of MedicineInstitute of Life Science, Swansea University, Singleton Park, Swansea SA2 8PP, UKInstitute of Veterinary BiochemistryClinic of Animal ReproductionFreie Universitaet Berlin, Berlin, GermanyClinic for Ruminants with Ambulatory and Herd Health ServicesCentre for Clinical Veterinary Medicine, Ludwig Maximilian University of Munich, Oberschleißheim, GermanyDepartment of Animal SciencesUniversity of Florida, Gainesville, Florida 32608, USAGraduate School for Animal and Food HygieneObihiro University of Agriculture and Veterinary Medicine, Obihiro 080-8555, JapanSchool of Veterinary ScienceUniversity of Liverpool, Leahurst, Neston CH64 7TE, UK
| | - Chrys Fergani
- College of MedicineInstitute of Life Science, Swansea University, Singleton Park, Swansea SA2 8PP, UKInstitute of Veterinary BiochemistryClinic of Animal ReproductionFreie Universitaet Berlin, Berlin, GermanyClinic for Ruminants with Ambulatory and Herd Health ServicesCentre for Clinical Veterinary Medicine, Ludwig Maximilian University of Munich, Oberschleißheim, GermanyDepartment of Animal SciencesUniversity of Florida, Gainesville, Florida 32608, USAGraduate School for Animal and Food HygieneObihiro University of Agriculture and Veterinary Medicine, Obihiro 080-8555, JapanSchool of Veterinary ScienceUniversity of Liverpool, Leahurst, Neston CH64 7TE, UK
| | - Hilary Dobson
- College of MedicineInstitute of Life Science, Swansea University, Singleton Park, Swansea SA2 8PP, UKInstitute of Veterinary BiochemistryClinic of Animal ReproductionFreie Universitaet Berlin, Berlin, GermanyClinic for Ruminants with Ambulatory and Herd Health ServicesCentre for Clinical Veterinary Medicine, Ludwig Maximilian University of Munich, Oberschleißheim, GermanyDepartment of Animal SciencesUniversity of Florida, Gainesville, Florida 32608, USAGraduate School for Animal and Food HygieneObihiro University of Agriculture and Veterinary Medicine, Obihiro 080-8555, JapanSchool of Veterinary ScienceUniversity of Liverpool, Leahurst, Neston CH64 7TE, UK
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Cheng Z, Abayasekara DRE, Ward F, Preece DM, Raheem KA, Wathes DC. Altering n-3 to n-6 polyunsaturated fatty acid ratios affects prostaglandin production by ovine uterine endometrium. Anim Reprod Sci 2013; 143:38-47. [DOI: 10.1016/j.anireprosci.2013.10.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Revised: 10/15/2013] [Accepted: 10/27/2013] [Indexed: 12/11/2022]
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42
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Changes in the vaginal flora of goats following a short-term protocol of oestrus induction and synchronisation with intravaginal sponges as well as their antimicrobial sensitivity. Small Rumin Res 2013. [DOI: 10.1016/j.smallrumres.2013.02.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Vojgani M, Akbarinejad V, Niasari-Naslaji A. Administration of eCG on Day 6 postpartum could enhance reproductive performance of Holstein dairy cows. Anim Reprod Sci 2013; 138:159-62. [PMID: 23562450 DOI: 10.1016/j.anireprosci.2013.03.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2012] [Revised: 02/24/2013] [Accepted: 03/01/2013] [Indexed: 11/26/2022]
Abstract
Injection of eCG on Day 6 postpartum could enhance early resumption of ovarian activity in Holstein dairy cows. The present study was conducted to investigate the effects of eCG treatment on Day 6 postpartum on reproductive performance of Holstein dairy cows. Holstein dairy cows (n=420) were randomly assigned to two groups. Cows in eCG-treated group (n=220) received an intramuscular injection of eCG (500IU Folligon®) on Day 6 postpartum, while cows in the Control group (n=200) received no treatment. Estrus expression was observed thrice daily, and AI was carried out 12 hours after standing estrus. Data were analyzed using GLM and Genmod procedures, and survival analysis. Days to first service decreased in the eCG-treated (74.4±1.76 days) compared to the Control (84.2±2.79 days) group (P=0.008). Calving to conception interval was shorter in eCG-treated (103.9±3.14 days) vs Control (130.3±5.70 days) group (P=0.0006). Cows treated with eCG were inseminated and conceived earlier than untreated cows (P<0.05). In conclusion, injection of eCG on Day 6 postpartum improved reproductive performance in Holstein dairy cows.
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Affiliation(s)
- M Vojgani
- Department of Theriogenology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
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Oestrous cycle-related changes in production of Toll-like receptors and prostaglandins in the canine endometrium. J Reprod Immunol 2012; 96:45-57. [DOI: 10.1016/j.jri.2012.07.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Revised: 06/18/2012] [Accepted: 07/01/2012] [Indexed: 01/28/2023]
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45
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Lefebvre RC, Stock AE. Therapeutic efficiency of antibiotics and prostaglandin F2α in postpartum dairy cows with clinical endometritis: an evidence-based evaluation. Vet Clin North Am Food Anim Pract 2012; 28:79-96, ix. [PMID: 22374119 DOI: 10.1016/j.cvfa.2012.01.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
The occurrence of vaginal discharge in postpartum dairy cows is generally diagnosed as clinical endometritis. This uterine condition is associated with reduced fertility and economic loss for the dairy industry. Therapeutic approaches include the systemic or intrauterine application of antibiotics or the injection of prostaglandin F2α and analogues to cause luteolysis and uterine contractions to evacuate the infected content. The treatment of clinical endometritis remains a subject of considerable controversy in the literature. Better understanding of the reproductive biology of normal versus abnormal uterine involution and immune mechanisms will allow more efficient diagnostic methods and a more efficient therapeutic approach.
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Affiliation(s)
- Rejean C Lefebvre
- Département des Sciences Cliniques, Faculté de Médecine Vétérinaire, Saint-Hyacinthe, Université de Montréal, 3200 rue Sicotte, CP 5000, Saint-Hyacinthe, Québec, Canada J2S 7C5.
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Borges AM, Healey GD, Sheldon IM. Explants of intact endometrium to model bovine innate immunity and inflammation ex vivo. Am J Reprod Immunol 2012; 67:526-39. [PMID: 22324889 DOI: 10.1111/j.1600-0897.2012.01106.x] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2011] [Accepted: 01/15/2012] [Indexed: 12/28/2022] Open
Abstract
PROBLEM Bacterial infections commonly cause bovine endometritis and infertility via innate immune pathways. However, mechanistic studies using isolated cells or chopped tissue may be compromised by the disruption of endometrial architecture and release of damage-associated molecular patterns. So, this study aimed to establish an ex vivo model of intact bovine endometrium to study innate immunity and inflammation. METHOD OF STUDY Intact bovine endometrium explants were collected using a sterile 8-mm punch biopsy and cultured ex vivo with bacteria or pathogen-associated molecules. Interleukin accumulation was measured, and tissue viability was assessed by microscopy, TdT-mediated biotin-dUTP nick-end labelling and lactate dehydrogenase assay. RESULTS Intact endometrium explants accumulated IL-6, IL-1β and IL-8 in response to Gram-negative or Gram-positive bacteria, and their purified pathogen-associated molecules; inflammatory responses were dependent on the stage of oestrous cycle. Explants of intact endometrium maintained viability and tissue architecture, and had lower basal accumulation of interleukins compared with explants using chopped endometrium. CONCLUSION This study established a tractable ex vivo model of intact endometrium to explore the mechanisms of immunity and inflammation in the bovine endometrium.
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Affiliation(s)
- Alan Maia Borges
- College of Medicine, Institute of Life Science, Swansea University, UK
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47
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Chotimanukul S, Sirivaidyapong S. Differential expression of Toll-like receptor 4 (TLR4) in healthy and infected canine endometrium. Theriogenology 2011; 76:1152-61. [DOI: 10.1016/j.theriogenology.2011.05.024] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2011] [Revised: 05/18/2011] [Accepted: 05/19/2011] [Indexed: 10/18/2022]
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Gatti M, Zunino P, Ungerfeld R. Changes in the aerobic vaginal bacterial mucous load after treatment with intravaginal sponges in anoestrous ewes: effect of medroxiprogesterone acetate and antibiotic treatment use. Reprod Domest Anim 2011; 46:205-8. [PMID: 20456668 DOI: 10.1111/j.1439-0531.2010.01626.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Intravaginal sponges (IS) impregnated with progestagens are widely used for oestrous synchronization in ewes. As progestogens depress the immuno response, the first aim was to determine whether medroxiprogesterone acetate (MAP) content affects the vaginal bacteria number (VBN) in IS-treated anoestrous ewes. The second aim was to compare the effectiveness of different antibiotic treatments to control the VBN increase caused by IS. In both experiments, IS were inserted during 14 days in anoestrous ewes. In the first, 11 ewes received commercial sponges (50 mg MAP), and 10 ewes received placebo sponges. For the second experiment, IS were inserted in three groups (n = 12/group), containing oxytetracycline im (20 mg/kg); injected into the sponge (0.02 mg), or control (no antibiotic). At sponge withdrawal, all ewes received 300 UI eCG. Mucous samples were collected from the vagina before sponge insertion, at sponge withdrawal, 24, 48 and 72 h later, and the VBN (colony-forming units per ml; CFU/ml) was counted after 48-h incubation. Medroxiprogesterone content did not affect VBN (log CFU/ml: 4.3 ± 0.2 vs 4.4 ± 0.2 with and without MAP, respectively). Bacterial number increased from 3.5 ± 0.2 at sponge insertion to 6.9 ± 0.1 at sponge withdrawal (p < 0.0001) and decreased the following day to 4.3 ± 0.2 (p < 0.0001). In the second experiment, VBN increased at sponge withdrawal (p < 0.0001) in all groups and decreased the following day (p < 0.0001). The CFU/ml at sponge withdrawal was lower in ewes treated with antibiotics (p < 0.0001), being even lower when local rather than systemic antibiotic was administered (log CFU/ml: 3.3 ± 1.8 vs 7.2 ± 1.8). The day of oestrous VBN was similar for all treatments and similar to that observed before sponge insertion. We concluded that MAP does not influence the increase in VBN, as the main effect is provoked by the sponge device itself, and local antibiotic treatment resulted in a lower bacterial growth than systemic treatments.
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Affiliation(s)
- M Gatti
- Departamento de Fisiología, Facultad de Veterinaria, Universidad de la República, Montevideo, Uruguay.
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Groebner AE, Schulke K, Schefold JC, Fusch G, Sinowatz F, Reichenbach HD, Wolf E, Meyer HHD, Ulbrich SE. Immunological mechanisms to establish embryo tolerance in early bovine pregnancy. Reprod Fertil Dev 2011; 23:619-32. [DOI: 10.1071/rd10230] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2010] [Accepted: 12/21/2010] [Indexed: 12/16/2022] Open
Abstract
A well-balanced immunological interaction between mother and the semi-allogenic embryo is of particular importance. The objective of the present study was to analyse mechanisms of immune tolerance in bovine pregnancy during peri-implantation. Simmental heifers inseminated with either cryopreserved spermatozoa or seminal plasma were killed 12, 15 or 18 days after oestrus. Uteri were flushed for the recovery of conceptuses and the ipsilateral intercaruncular endometrium was sampled for gene expression analysis. Indoleamine 2,3-dioxygenase (IDO) mRNA, coding for the initial enzyme of the kynurenine pathway, was 18-fold (P < 0.001) more abundant in the endometrium of Day 18 pregnant v. non-pregnant animals. Tandem mass spectrometry revealed a decrease of endometrial l-tryptophan (P = 0.0008), but an increase of l-kynurenine concentration (P = 0.005) from Day 12 to Day 18, suggesting increasing IDO activity (P < 0.03). An in vitro coculture model of endometrial cells showed an induction of IDO expression following interferon-τ exposure primarily in stroma cells, which was confirmed by in situ hybridisation localising IDO mRNA mainly in deep stroma cells. Immunohistochemical analysis revealed fewer CD45-positive leucocytes in the zona basalis of pregnant animals. Elevated IDO activity may reduce the presence of leucocytes in the pregnant endometrium, providing a possible mechanism for protecting the semi-allogenic conceptus from maternal rejection.
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Manes J, Fiorentino M, Kaiser G, Hozbor F, Alberio R, Sanchez E, Paolicchi F. Changes in the aerobic vaginal flora after treatment with different intravaginal devices in ewes. Small Rumin Res 2010. [DOI: 10.1016/j.smallrumres.2010.07.021] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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