Abrahams V.M., Mor G. (2005): Toll-like Receptors and their Role in the Trophoblast. Placenta, 26, 540-547 https://doi.org/10.1016/j.placenta.2004.08.010Aflatoonian R., Tuckerman E., Elliott S.L., Bruce C., Aflatoonian A., Li T.C., Fazeli A. (2007): Menstrual cycle-dependent changes of Toll-like receptors in endometrium. Human Reproduction, 22, 586-593 https://doi.org/10.1093/humrep/del388Akira Shizuo (2003): Toll-like Receptor Signaling. Journal of Biological Chemistry, 278, 38105-38108 https://doi.org/10.1074/jbc.R300028200 Ansari AR, Ge XH, Huang HB, Wang JX, Peng KM, Yu M, Liu HZ (2015): Expression patterns of Toll-like receptor 4 in pig uterus during pregnancy. Pakistan Veterinary Journal 35, 466–469.Antczak DF (2012): T-cell Tolerance to the Developing Equine Conceptus. Reproduction in Domestic Animals, 47, 376-383 https://doi.org/10.1111/j.1439-0531.2012.02101.xAtli Mehmet O., Kurar Ercan, Kayis Seyit A., Aslan Selim, Semacan Ahmet, Celik Sefa, Guzeloglu Aydin (2010): Evaluation of genes involved in prostaglandin action in equine endometrium during estrous cycle and early pregnancy. Animal Reproduction Science, 122, 124-132 https://doi.org/10.1016/j.anireprosci.2010.08.007Chen Jianlin, John Reji, Richardson James A., Shelton John M., Zhou Xin J., Wang Yanxia, Wu Qing Qing, Hartono John R., Winterberg Pamela D., Lu Christopher Y. (2011): Toll-like receptor 4 regulates early endothelial activation during ischemic acute kidney injury. Kidney International, 79, 288-299 https://doi.org/10.1038/ki.2010.381Chotimanukul S., Sirivaidyapong S. (2011): Differential expression of Toll-like receptor 4 (TLR4) in healthy and infected canine endometrium. Theriogenology, 76, 1152-1161 https://doi.org/10.1016/j.theriogenology.2011.05.024Critchley William R., Fildes James E. (2012): Graft rejection - endogenous or allogeneic?. Immunology, 136, 123-132 https://doi.org/10.1111/j.1365-2567.2012.03560.xCochet Marielle, Vaiman Daniel, Lefèvre François (2009): Novel interferon delta genes in mammals: Cloning of one gene from the sheep, two genes expressed by the horse conceptus and discovery of related sequences in several taxa by genomic database screening. Gene, 433, 88-99 https://doi.org/10.1016/j.gene.2008.11.026Fan Jie, Frey Randall S., Malik Asrar B. (2003): TLR4 signaling induces TLR2 expression in endothelial cells via neutrophil NADPH oxidase. Journal of Clinical Investigation, 112, 1234-1243 https://doi.org/10.1172/JCI18696Flaminio M.J.B.F., Antczak D.F. (2005): Inhibition of lymphocyte proliferation and activation: a mechanism used by equine invasive trophoblast to escape the maternal immune response. Placenta, 26, 148-159 https://doi.org/10.1016/j.placenta.2004.05.008Gonzalez Juan M., Xu Hua, Ofori Ella, Elovitz Michal A. (2007): Toll-like receptors in the uterus, cervix, and placenta: is pregnancy an immunosuppressed state?. American Journal of Obstetrics and Gynecology, 197, 296.e1-296.e6 https://doi.org/10.1016/j.ajog.2007.06.021Holmlund Ulrika, Cebers Gvido, Dahlfors Agneta R., Sandstedt Bengt, Bremme Katarina, EkstrOm EVA S., Scheynius Annika (2002): Expression and regulation of the pattern recognition receptors Toll-like receptor-2 and Toll-like receptor-4 in the human placenta. Immunology, 107, 145-151 https://doi.org/10.1046/j.1365-2567.2002.01491.xJU JINFEN, LI LIANGPENG, XIE JINGYAN, WU YAN, WU XI, LI WEIHON (2014): Toll-like receptor-4 pathway is required for the pathogenesis of human chronic endometritis. Experimental and Therapeutic Medicine, 8, 1896-1900 https://doi.org/10.3892/etm.2014.1990Kannaki T.R., Shanmugam M., Verma P.C. (2011): Toll-like receptors and their role in animal reproduction. Animal Reproduction Science, 125, 1-12 https://doi.org/10.1016/j.anireprosci.2011.03.008Kaya Mehmet Salih, Kose Mehmet, Guzeloglu Aydin, Kıyma Zekeriya, Atli Mehmet Osman (2017): Early pregnancy-related changes in toll-like receptors expression in ovine trophoblasts and peripheral blood leukocytes. Theriogenology, 93, 40-45 https://doi.org/10.1016/j.theriogenology.2017.01.031Kayis Seyit A., Atli Mehmet O., Kurar Ercan, Bozkaya Faruk, Semacan Ahmet, Aslan Selim, Guzeloglu Aydin (2011): Rating of putative housekeeping genes for quantitative gene expression analysis in cyclic and early pregnant equine endometrium. Animal Reproduction Science, 125, 124-132 https://doi.org/10.1016/j.anireprosci.2011.02.019Klein Claudia, Troedsson Mats H.T. (2011): Transcriptional Profiling of Equine Conceptuses Reveals New Aspects of Embryo-Maternal Communication in the Horse1. Biology of Reproduction, 84, 872-885 https://doi.org/10.1095/biolreprod.110.088732Klohonatz K. M., Hess A. M., Hansen T. R., Squires E. L., Bouma G. J., Bruemmer J. E. (2015): Equine endometrial gene expression changes during and after maternal recognition of pregnancy1. Journal of Animal Science, 93, 3364-3376 https://doi.org/10.2527/jas.2014-8826Koga Kaori, Mor Gil (2016): Toll-like Receptors and Pregnancy. Reproductive Sciences, 14, 297-299 https://doi.org/10.1177/1933719107304562Liu Zhilin, Shimada Masayuki, Richards JoAnne S. (2008): The involvement of the Toll-like receptor family in ovulation. Journal of Assisted Reproduction and Genetics, 25, 223-228 https://doi.org/10.1007/s10815-008-9219-0Livak Kenneth J., Schmittgen Thomas D. (2001): Analysis of Relative Gene Expression Data Using Real-Time Quantitative PCR and the 2−ΔΔCT Method. Methods, 25, 402-408 https://doi.org/10.1006/meth.2001.1262Lüttgenau J, Herzog K, Strüve K, Latter S, Boos A, Bruckmaier R M, Bollwein H, Kowalewski M P (2016): LPS-mediated effects and spatio-temporal expression of TLR2 and TLR4 in the bovine corpus luteum. REPRODUCTION, 151, 391-399 https://doi.org/10.1530/REP-15-0520Marth Christina D., Firestone Simon M., Glenton Lisa Y., Browning Glenn F., Young Neil D., Krekeler Natali (2016): Oestrous cycle-dependent equine uterine immune response to induced infectious endometritis. Veterinary Research, 47, - https://doi.org/10.1186/s13567-016-0398-xMogensen T. H. (2009): Pathogen Recognition and Inflammatory Signaling in Innate Immune Defenses. Clinical Microbiology Reviews, 22, 240-273 https://doi.org/10.1128/CMR.00046-08Noronha Leela E., Antczak Douglas F. (2010): Maternal Immune Responses to Trophoblast: The Contribution of the Horse to Pregnancy Immunology. American Journal of Reproductive Immunology, 64, 231-244 https://doi.org/10.1111/j.1600-0897.2010.00895.xPfaffl M. W. (): Relative expression software tool (REST(C)) for group-wise comparison and statistical analysis of relative expression results in real-time PCR. Nucleic Acids Research, 30, 36e-36 https://doi.org/10.1093/nar/30.9.e36Raeside James I., Christie Heather L., Renaud Rick L., Waelchli Rudolf O., Betteridge Keith J. (2004): Estrogen Metabolism in the Equine Conceptus and Endometrium During Early Pregnancy in Relation to Estrogen Concentrations in Yolk-Sac Fluid1. Biology of Reproduction, 71, 1120-1127 https://doi.org/10.1095/biolreprod.104.028712Ruiz-González Irene, Xu Jing, Wang Xiaoqiu, Burghardt Robert C, Dunlap Kathrin A, Bazer Fuller W (2015): Exosomes, endogenous retroviruses and toll-like receptors: pregnancy recognition in ewes. REPRODUCTION, 149, 281-291 https://doi.org/10.1530/REP-14-0538Sharp D. C., Thatcher M-J., Salute M. E., Fuchs A-R. (1997): Relationship between endometrial oxytocin receptors and oxytocin-induced prostaglandin F2  release during the oestrous cycle and early pregnancy in pony mares. Reproduction, 109, 137-144 https://doi.org/10.1530/jrf.0.1090137Sheldon Iain Martin, Roberts Mark H., Chabalgoity Jose Alejandro (2010): Toll-Like Receptor 4 Mediates the Response of Epithelial and Stromal Cells to Lipopolysaccharide in the Endometrium. PLoS ONE, 5, e12906- https://doi.org/10.1371/journal.pone.0012906Shimada M., Yanai Y., Okazaki T., Noma N., Kawashima I., Mori T., Richards J. S. (2008): Hyaluronan fragments generated by sperm-secreted hyaluronidase stimulate cytokine/chemokine production via the TLR2 and TLR4 pathway in cumulus cells of ovulated COCs, which may enhance fertilization. Development, 135, 2001-2011 https://doi.org/10.1242/dev.020461Siemieniuch Marta J., Szóstek Anna Z., Gajos Katarzyna, Kozdrowski Roland, Nowak Marcin, Okuda Kiyoshi, Haziot Alain (2016): Type of Inflammation Differentially Affects Expression of Interleukin 1β and 6, Tumor Necrosis Factor-α and Toll-Like Receptors in Subclinical Endometritis in Mares. PLOS ONE, 11, e0154934- https://doi.org/10.1371/journal.pone.0154934Silva E., Henriques S., Brito S., Ferreira-Dias G., Lopes-da-Costa L., Mateus L. (2012): Oestrous cycle-related changes in production of Toll-like receptors and prostaglandins in the canine endometrium. Journal of Reproductive Immunology, 96, 45-57 https://doi.org/10.1016/j.jri.2012.07.003Swangchan-Uthai Theerawat, Lavender Chloe R.M., Cheng Zhangrui, Fouladi-Nashta Ali A., Wathes D. Claire (2012): Time Course of Defense Mechanisms in Bovine Endometrium in Response to Lipopolysaccharide1. Biology of Reproduction, 87, - https://doi.org/10.1095/biolreprod.112.102376Tirumurugaan K.G., Dhanasekaran S., Raj G. Dhinakar, Raja A., Kumanan K., Ramaswamy V. (2010): Differential expression of toll-like receptor mRNA in selected tissues of goat (Capra hircus). Veterinary Immunology and Immunopathology, 133, 296-301 https://doi.org/10.1016/j.vetimm.2009.08.015Vaure Céline, Liu Yuanqing (2014): A Comparative Review of Toll-Like Receptor 4 Expression and Functionality in Different Animal Species. Frontiers in Immunology, 5, - https://doi.org/10.3389/fimmu.2014.00316Zhang Z., Schluesener H. J. (2006): Mammalian toll-like receptors: from endogenous ligands to tissue regeneration. Cellular and Molecular Life Sciences, 63, 2901-2907 https://doi.org/10.1007/s00018-006-6189-1