Analyze Diet
Frontiers in veterinary science2022; 8; 799619; doi: 10.3389/fvets.2021.799619

A Novel Approach to Minimising Acute Equine Endometritis That May Help to Prevent the Development of the Chronic State.

Abstract: One of the most commonly encountered challenges in equine breeding is endometritis, which can be difficult to resolve and causes considerable economic losses to the industry. It is a multifactorial condition, developing as an exaggerated form of the normal physiological response to breeding. Seminal plasma proteins, spermatozoa, bacteria and debris initiate an inflammatory response; the resulting fluid and neutrophils are then cleared from the uterus along with the debris. However, in some mares, the response is prolonged or exaggerated, with much fluid formation and neutrophil infiltration leading to acute endometritis. A bacterial cause has been implicated, although in some cases no pathogenic organisms can be isolated on culture. It has been postulated that any one of a variety of bacteria could be involved, or dysbiosis of the uterine microbiome could be responsible. Repeated episodes of acute endometritis may lead to the pathology associated with chronic endometritis, with mucociliary dysfunction, vascular degeneration and plasma cell infiltration. This review examines the information that is currently available about equine endometritis, particularly about the role of the inseminate in the uterus, and its current treatment. There are some promising lines of research into treatment or prevention that may help to resolve the issue.
Publication Date: 2022-01-06 PubMed ID: 35071389PubMed Central: PMC8770823DOI: 10.3389/fvets.2021.799619Google Scholar: Lookup
The Equine Research Bank provides access to a large database of publicly available scientific literature. Inclusion in the Research Bank does not imply endorsement of study methods or findings by Mad Barn.
  • Journal Article

Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

The research article discusses a proposed novel approach to limiting acute endometritis in horses, in hopes of preventing the development of a chronic condition. The paper reviews current knowledge on the topic, existing treatment methods and promising research lines that may prove useful in resolving issues with endometritis.

About Equine Endometritis

  • Endometritis is a significant challenge in the breeding of horses owing to its complexity and propensity to cause economic losses within the equine industry.
  • Essentially, endometritis is a heightened form of the normal physiological reaction to the breeding process in horses. The substances involved in the breeding process, such as seminal plasma proteins, sperm cells, bacteria, and debris, trigger an inflammatory response. The subsequent fluid and neutrophils are intended to clear the uterus from debris.
  • In some situations, the inflammatory response is either extended or amplified, which results in an excessive production of fluid and inflammation known as acute endometritis.

Causes of Equine Endometritis

  • Although bacteria have been hinted at as a potential cause, there are instances where no pathogenetic organisms can be isolated and identified. The paper suggests the involvement of a variety of bacteria, or that an imbalance in the uterine microbiome may be causing the condition.
  • When acute endometritis frequently recurs, it may evolve into chronic endometritis, manifesting in complications such as mucociliary dysfunction, vascular degeneration, and plasma cell penetration.

Current Treatment and Future Directions

  • The research paper also delves into the current treatments available for equine endometritis and discusses the role of the inseminate in the equine uterus.
  • There are ongoing research efforts toward finding a treatment or a preventive measure that could help in addressing this pervasive issue.

Cite This Article

APA
Morrell JM, Rocha A. (2022). A Novel Approach to Minimising Acute Equine Endometritis That May Help to Prevent the Development of the Chronic State. Front Vet Sci, 8, 799619. https://doi.org/10.3389/fvets.2021.799619

Publication

ISSN: 2297-1769
NlmUniqueID: 101666658
Country: Switzerland
Language: English
Volume: 8
Pages: 799619
PII: 799619

Researcher Affiliations

Morrell, J M
  • Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden.
Rocha, A
  • Department of Immuno-Physiology and Pharmacology, Instituto de Ciências Biomédicas Abel Salazar, University of Porto, Porto, Portugal.
  • Centro de Estudos de Ciência Animal, University of Porto, Porto, Portugal.

Conflict of Interest Statement

JM is the inventor and one of the patent holders of the colloid mentioned in this review. The remaining author declares that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

References

This article includes 83 references
  1. Troedsson MH. Uterine clearance and resistance to persistent endometritis in the mare.. Theriogenology 1999 Aug;52(3):461-71.
    doi: 10.1016/S0093-691X(99)00143-0pubmed: 10734380google scholar: lookup
  2. Canisso IF, Segabinazzi LGTM, Fedorka CE. Persistent Breeding-Induced Endometritis in Mares - a Multifaceted Challenge: From Clinical Aspects to Immunopathogenesis and Pathobiology.. Int J Mol Sci 2020 Feb 20;21(4).
    doi: 10.3390/ijms21041432pmc: PMC7073041pubmed: 32093296google scholar: lookup
  3. H A Morris L, M McCue P, Aurich C. Equine endometritis: a review of challenges and new approaches.. Reproduction 2020 Nov;160(5):R95-R110.
    doi: 10.1530/REP-19-0478pubmed: 32805710google scholar: lookup
  4. Maischberger E, Irwin J, Carrington S, Duggan V. Equine post-breeding endometritis: A review.. Ir Vet J 2008 Mar 1;61(3):163-8.
    doi: 10.1186/2046-0481-61-3-163pmc: PMC3113865pubmed: 21851709google scholar: lookup
  5. Pasolini M, Del Prete C, Fabbri S, Auletta L. Bacterial endometritis that is refractory to traditional antimicrobial treatment is a significant challenge in the equine breeding industry.. .
  6. LeBlanc MM, Causey RC. Clinical and subclinical endometritis in the mare: both threats to fertility.. Reprod Domest Anim 2009 Sep;44 Suppl 3:10-22.
  7. Hughes JP, Loy RG. Investigations on the effect of intrauterine inoculations of streptococcus zooepidemicus in the mare.. Am Assoc Equine Pract (1969) 15:289–92.
  8. LeBlanc MM, Neuwirth L, Asbury AC, Tran T, Mauragis D, Klapstein E. Scintigraphic measurement of uterine clearance in normal mares and mares with recurrent endometritis.. Equine Vet J 1994 Mar;26(2):109-13.
  9. Troedsson MHT, Desvousges A, Macpherson ML, Pozor MP. Persistent breeding-induced endometritis.. Pferdeheilkunde (1994) 24:56–60.
    doi: 10.21836/PEM20080112google scholar: lookup
  10. Troedsson MHT. Therapeutic considerations for mating-induced endometritis.. Pferdeheilkunde (1997) 13:516–20.
    doi: 10.21836/PEM19970515google scholar: lookup
  11. Swegen A. Maternal recognition of pregnancy in the mare: does it exist and why do we care?. Reproduction 2021 May 5;161(6):R139-R155.
    doi: 10.1530/REP-20-0437pmc: PMC8183633pubmed: 33957605google scholar: lookup
  12. Causey RC. Making sense of equine uterine infections: the many faces of physical clearance.. Vet J 2006 Nov;172(3):405-21.
    doi: 10.1016/j.tvjl.2005.08.005pubmed: 16169264google scholar: lookup
  13. Segre JA. What does it take to satisfy Koch's postulates two centuries later? Microbial genomics and Propionibacteria acnes.. J Invest Dermatol 2013 Sep;133(9):2141-2.
    doi: 10.1038/jid.2013.260pmc: PMC3775492pubmed: 23842116google scholar: lookup
  14. Kitaya K, Takeuchi T, Mizuta S, Matsubayashi H, Ishikawa T. Endometritis: new time, new concepts.. Fertil Steril 2018 Aug;110(3):344-350.
  15. Allen WR, Wilsher S. Half a century of equine reproduction research and application: A veterinary tour de force.. Equine Vet J 2018 Jan;50(1):10-21.
    doi: 10.1111/evj.12762pubmed: 28971522google scholar: lookup
  16. Tiago G, Júlio C, António R. Conception rate, uterine infection and embryo quality after artificial insemination and natural breeding with a stallion carrier of Pseudomonas aeruginosa: a case report.. Acta Vet Scand 2012 Mar 29;54(1):20.
    doi: 10.1186/1751-0147-54-20pmc: PMC3349612pubmed: 22458304google scholar: lookup
  17. Davis HA, Stanton MB, Thungrat K, Boothe DM. Uterine bacterial isolates from mares and their resistance to antimicrobials: 8,296 cases (2003-2008).. J Am Vet Med Assoc 2013 Apr 1;242(7):977-83.
    doi: 10.2460/javma.242.7.977pubmed: 23517211google scholar: lookup
  18. Ferris RA, McCue PM, Borlee GI, Loncar KD, Hennet ML, Borlee BR. In Vitro Efficacy of Nonantibiotic Treatments on Biofilm Disruption of Gram-Negative Pathogens and an In Vivo Model of Infectious Endometritis Utilizing Isolates from the Equine Uterus.. J Clin Microbiol 2016 Mar;54(3):631-9.
    doi: 10.1128/JCM.02861-15pmc: PMC4768000pubmed: 26719448google scholar: lookup
  19. Sicsic R, Goshen T, Dutta R, Kedem-Vaanunu N, Kaplan-Shabtai V, Pasternak Z, Gottlieb Y, Shpigel NY, Raz T. Microbial communities and inflammatory response in the endometrium differ between normal and metritic dairy cows at 5-10 days post-partum.. Vet Res 2018 Aug 2;49(1):77.
    doi: 10.1186/s13567-018-0570-6pmc: PMC6071394pubmed: 30068391google scholar: lookup
  20. Ferris RA. Current understanding of bacterial biofilms and latent infections: a clinical perspective.. Rev Bras Reprod Anim (2017) 41:74–80.
  21. LeBlanc MM. Advances in the diagnosis and treatment of chronic infectious and post-mating-induced endometritis in the mare.. Reprod Domest Anim 2010 Jun;45 Suppl 2:21-7.
  22. Sikora M, Król J, Nowak M, Stefaniak T, Aubertsson G, Kozdrowski R. The usefulness of uterine lavage and acute phase protein levels as a diagnostic tool for subclinical endometritis in Icelandic mares.. Acta Vet Scand 2016 Sep 7;58(1):50.
    doi: 10.1186/s13028-016-0233-4pmc: PMC5015198pubmed: 27604098google scholar: lookup
  23. Overbeck W, Witte TS, Heuwieser W. Comparison of three diagnostic methods to identify subclinical endometritis in mares.. Theriogenology 2011 Apr 15;75(7):1311-8.
  24. Kozdrowski R, Sikora M, Buczkowska J, Nowak M, Raś A, Dzięcioł M. Effects of cycle stage and sampling procedure on interpretation of endometrial cytology in mares.. Anim Reprod Sci 2015 Mar;154:56-62.
  25. Overbeck W, Jäger K, Schoon HA, Witte TS. Comparison of cytological and histological examinations in different locations of the equine uterus-an in vitro study.. Theriogenology 2013 Jun;79(9):1262-8.
  26. Nielsen JM. Endometritis in the mare: a diagnostic study comparing cultures from swab and biopsy.. Theriogenology 2005 Aug;64(3):510-8.
  27. Knudsen LR, Karstrup CC, Pedersen HG, Angen Ø, Agerholm JS, Rasmussen EL, Jensen TK, Klitgaard K. An investigation of the microbiota in uterine flush samples and endometrial biopsies from dairy cows during the first 7 weeks postpartum.. Theriogenology 2016 Jul 15;86(2):642-50.
  28. Holyoak G, Lyman CC. The equine endometrial microbiome: a brief review.. Am J Biomed Sci Res (2021) 11:532–4.
  29. Jeon SJ, Galvão KN. An Advanced Understanding of Uterine Microbial Ecology Associated with Metritis in Dairy Cows.. Genomics Inform 2018 Dec;16(4):e21.
    doi: 10.5808/GI.2018.16.4.e21pmc: PMC6440669pubmed: 30602082google scholar: lookup
  30. Simón C, Bellver J. Scratching beneath 'The Scratching Case': systematic reviews and meta-analyses, the back door for evidence-based medicine.. Hum Reprod 2014 Aug;29(8):1618-21.
    doi: 10.1093/humrep/deu126pubmed: 24903203google scholar: lookup
  31. Park HJ, Kim YS, Yoon TK, Lee WS. Chronic endometritis and infertility.. Clin Exp Reprod Med 2016 Dec;43(4):185-192.
    doi: 10.5653/cerm.2016.43.4.185pmc: PMC5234283pubmed: 28090456google scholar: lookup
  32. Di Spiezio Sardo A, Di Carlo C, Minozzi S, Spinelli M, Pistotti V, Alviggi C, De Placido G, Nappi C, Bifulco G. Efficacy of hysteroscopy in improving reproductive outcomes of infertile couples: a systematic review and meta-analysis.. Hum Reprod Update 2016 Jun;22(4):479-96.
    doi: 10.1093/humupd/dmw008pubmed: 27008893google scholar: lookup
  33. Lensen SF, Manders M, Nastri CO, Gibreel A, Martins WP, Templer GE, Farquhar C. Endometrial injury for pregnancy following sexual intercourse or intrauterine insemination.. Cochrane Database Syst Rev 2016 Jun 14;(6):CD011424.
  34. Benko T, Boldizar M, Novotny F, Hura V, Valocky I, Dudrikova K. Incidence of bacterial pathogens in equine uterine swabs, their antibiotic resistance patterns, and selected reproductive indices in English thoroughbred mares during the foal heat cycle.. Vet Med (2015) 60:613–20.
    doi: 10.17221/8529-VETMEDgoogle scholar: lookup
  35. Donlan RM. Biofilms: microbial life on surfaces.. Emerg Infect Dis 2002 Sep;8(9):881-90.
    doi: 10.3201/eid0809.020063pmc: PMC2732559pubmed: 12194761google scholar: lookup
  36. Hinrichs K, Spensley MS, McDonough PL. Evaluation of progesterone treatment to create a model for equine endometritis.. Equine Vet J 1992 Nov;24(6):457-61.
  37. Stout TAE. Fungal endometritis in the mare.. Pferdeheilkunde (2008) 24:83–7.
    doi: 10.21836/PEM20080117google scholar: lookup
  38. Beltaire KA, Cheong SH, Coutinho da Silva MA. Retrospective study on equine uterine fungal isolates and antifungal susceptibility patterns (1999-2011).. Equine Vet J Suppl 2012 Dec;(43):84-7.
  39. Wang ML, Liu MC, Xu J, An LG, Wang JF, Zhu YH. Uterine Microbiota of Dairy Cows With Clinical and Subclinical Endometritis.. Front Microbiol 2018;9:2691.
    doi: 10.3389/fmicb.2018.02691pmc: PMC6232309pubmed: 30459745google scholar: lookup
  40. Pascottini OB, Van Schyndel SJ, Spricigo JFW, Rousseau J, Weese JS, LeBlanc SJ. Dynamics of uterine microbiota in postpartum dairy cows with clinical or subclinical endometritis.. Sci Rep 2020 Jul 23;10(1):12353.
    doi: 10.1038/s41598-020-69317-zpmc: PMC7378066pubmed: 32704012google scholar: lookup
  41. Moore SG, Ericsson AC, Poock SE, Melendez P, Lucy MC. Hot topic: 16S rRNA gene sequencing reveals the microbiome of the virgin and pregnant bovine uterus.. J Dairy Sci 2017 Jun;100(6):4953-4960.
    doi: 10.3168/jds.2017-12592pmc: PMC6344888pubmed: 28434745google scholar: lookup
  42. Jones E. Characterization of the Equine Microbiome During Late Gestation and the Early Postpartum Period, and at Various Times During the Estrous Cycle in Mares Being Bred With Raw or Extended Semen.. Master of Science Thesis 2017. (2017).
  43. Portus BJ, Reilas T, Katila T. Effect of seminal plasma on uterine inflammation, contractility and pregnancy rates in mares.. Equine Vet J 2005 Nov;37(6):515-9.
    doi: 10.2746/042516405775314844pubmed: 16295928google scholar: lookup
  44. Palm F, Walter I, Budik S, Kolodziejek J, Nowotny N, Aurich C. Influence of different semen extenders and seminal plasma on PMN migration and on expression of IL-1beta, IL-6, TNF-alpha and COX-2 mRNA in the equine endometrium.. Theriogenology 2008 Sep 15;70(5):843-51.
  45. Crowe CA, Ravenhill PJ, Hepburn RJ, Shepherd CH. A retrospective study of artificial insemination of 251 mares using chilled and fixed time frozen-thawed semen.. Equine Vet J 2008 Sep;40(6):572-6.
    doi: 10.2746/042516408X281199pubmed: 18267884google scholar: lookup
  46. Kruse R, Dutta PC, Morrell JM. Colloid centrifugation removes seminal plasma and cholesterol from boar spermatozoa.. Reprod Fertil Dev 2011;23(7):858-65.
    doi: 10.1071/RD10260pubmed: 21871205google scholar: lookup
  47. Papas M, Catalán J, Recuero S, Morrell JM, Yeste M, Miró J. Single Layer Centrifugation Improves the Quality of Fresh Donkey Semen and Modifies the Sperm Ability to Interact with Polymorphonuclear Neutrophils.. Animals (Basel) 2020 Nov 16;10(11).
    doi: 10.3390/ani10112128pmc: PMC7696916pubmed: 33207812google scholar: lookup
  48. Miró J, Marín H, Catalán J, Papas M, Gacem S, Yeste M. Seminal Plasma, Sperm Concentration, and Sperm-PMN Interaction in the Donkey: An In Vitro Model to Study Endometrial Inflammation at Post-Insemination.. Int J Mol Sci 2020 May 14;21(10).
    doi: 10.3390/ijms21103478pmc: PMC7278951pubmed: 32423134google scholar: lookup
  49. Morrell JM, Richter J, Martinsson G, Stuhtmann G, Hoogewijs M, Roels K, Dalin AM. Pregnancy rates after artificial insemination with cooled stallion spermatozoa either with or without single layer centrifugation.. Theriogenology 2014 Nov;82(8):1102-5.
  50. Alghamdi AS, Foster DN, Troedsson MH. Equine seminal plasma reduces sperm binding to polymorphonuclear neutrophils (PMNs) and improves the fertility of fresh semen inseminated into inflamed uteri.. Reproduction 2004 May;127(5):593-600.
    doi: 10.1530/rep.1.00096pubmed: 15129015google scholar: lookup
  51. Fedorka CE, Woodward EM, Scoggin KE, Esteller-Vico A, Squires EL, Ball BA. The effect of cysteine-rich secretory protein-3 and lactoferrin on endometrial cytokine mRNA expression after breeding in the horse.. J Equine Vet Sci (2017) 48:136–42.
    doi: 10.1016/j.jevs.2016.03.005pubmed: 0google scholar: lookup
  52. Sabatini C, Rota A, Panzani D, Tesi M, Camillo F. Postmating endometritis and pregnancy rate were not affected by the addition to frozen-thawed semen of filtered seminal plasma when mares without evidence of endometritis were artificially inseminated once 40 hours post-gonadotropin-releasing hormone treatment.. J Equine Vet Sci (2018) 62:54–9.
  53. Morrell JM, Pihl J, Dalin AM, Johannisson A. Restoration of seminal plasma to stallion spermatozoa selected by colloid centrifugation increases sperm progressive motility but is detrimental to chromatin integrity.. Theriogenology 2012 Jul 15;78(2):345-52.
  54. Miró J, Catalán J, Marín H, Yánez-Ortiz I, Yeste M. Specific Seminal Plasma Fractions Are Responsible for the Modulation of Sperm-PMN Binding in the Donkey.. Animals (Basel) 2021 May 13;11(5).
    doi: 10.3390/ani11051388pmc: PMC8153123pubmed: 34068214google scholar: lookup
  55. Morrell JM, Georgakas A, Lundeheim N, Nash D, Davies Morel MC, Johannisson A. Effect of heterologous and homologous seminal plasma on stallion sperm quality.. Theriogenology 2014 Jul 1;82(1):176-83.
  56. Katila T. Update on endometritis therapy.. Pferdeheilkunde (2016) 32:39–45.
    doi: 10.21836/PEM20160107google scholar: lookup
  57. Scoggin CF. Endometritis: Nontraditional Therapies.. Vet Clin North Am Equine Pract 2016 Dec;32(3):499-511.
    doi: 10.1016/j.cveq.2016.08.002pubmed: 27726985google scholar: lookup
  58. Vickram AS, Dhama K, Archana K, Parameswari R, Pathy MR, Iqbal HMN. Antimicrobial peptides in semen extenders: a valuable replacement option for antibiotics in cryopreservation - a prospective review.. J Exp Biol Agric Sci (2017) 5:578–88.
  59. Woodward EM, Christoffersen M, Horohov D, Squires EL, Troedsson MH. The effect of treatment with immune modulators on endometrial cytokine expression in mares susceptible to persistent breeding-induced endometritis.. Equine Vet J 2015 Mar;47(2):235-9.
    doi: 10.1111/evj.12266pubmed: 24645833google scholar: lookup
  60. Papa FO, Delláqua Jr JA, Alvarenga MA, Melo CM, Zahn FS. Use of corticosteroid therapy on the modulation of uterine inflammatory response in mares after artificial insemination with frozen semen.. Pferdeheilkunde (2008) 24:79–82.
    doi: 10.21836/PEM20080116google scholar: lookup
  61. Anitua E, Andia I, Ardanza B, Nurden P, Nurden AT. Autologous platelets as a source of proteins for healing and tissue regeneration.. Thromb Haemost 2004 Jan;91(1):4-15.
    doi: 10.1160/TH03-07-0440pubmed: 14691563google scholar: lookup
  62. Segabinazzi LG, Friso AM, Correal SB, Crespilho AM, Dell'Aqua JA Jr, Miró J, Papa FO, Alvarenga MA. Uterine clinical findings, fertility rate, leucocyte migration, and COX-2 protein levels in the endometrial tissue of susceptible mares treated with platelet-rich plasma before and after AI.. Theriogenology 2017 Dec;104:120-126.
  63. Dawod A, Miro J, Elbaz HT, Fahmy H, Abdoon AS. Effect of Intrauterine Infusion of Equine Fresh Platelets-Rich Plasma (PRP) or Lyophilized PRP (L-GF(equina)) on Ovarian Activity and Pregnancy Rate in Repeat Breeder Purebred Arabian Mares.. Animals (Basel) 2021 Apr 14;11(4).
    doi: 10.3390/ani11041123pmc: PMC8070911pubmed: 33919901google scholar: lookup
  64. Mambelli LI, Winter GH, Kerkis A, Malschitzky E, Mattos RC, Kerkis I. A novel strategy of mesenchymal stem cells delivery in the uterus of mares with endometrosis.. Theriogenology 2013 Mar 15;79(5):744-50.
  65. Alvarenga MA, Teoro de Carmo M, Segabinazzi LG, Guastali MD, Maia L, Landim-Alvarenga FC. Feasibility and safety of endometrial injection of autologous bone marrow mesenchymal stem cells in mares.. J Equine Vet Sci (2016) 42:12–8.
  66. Troedsson MHT, Møller Nielsen J. Non-antibiotic treatment of equine endometritis.. Pferdeheilkunde (2018) 34:17–22.
    doi: 10.21836/PEM20180103google scholar: lookup
  67. Köhne M, Kuhlmann M, Tönißen A, Martinsson G, Sieme H. Diagnostic and Treatment Practices of Equine Endometritis-A Questionnaire.. Front Vet Sci 2020;7:547.
    doi: 10.3389/fvets.2020.00547pmc: PMC7492380pubmed: 32984410google scholar: lookup
  68. D'Ippolito S, Di Nicuolo F, Pontecorvi A, Gratta M, Scambia G, Di Simone N. Endometrial microbes and microbiome: Recent insights on the inflammatory and immune "players" of the human endometrium.. Am J Reprod Immunol 2018 Dec;80(6):e13065.
    doi: 10.1111/aji.13065pubmed: 30375712google scholar: lookup
  69. Al-Kass Z, Eriksson E, Bagge E, Wallgren M, Morrell JM. Microbiota of semen from stallions in Sweden identified by MALDI-TOF.. Vet Anim Sci 2020 Dec;10:100143.
    doi: 10.1016/j.vas.2020.100143pmc: PMC7593612pubmed: 33145452google scholar: lookup
  70. Al-Kass Z, Guo Y, Vinnere Pettersson O, Niazi A, Morrell JM. Metagenomic analysis of bacteria in stallion semen.. Anim Reprod Sci 2020 Oct;221:106568.
  71. Guimarães T, Lopes G, Pinto M, Silva E, Miranda C, Correia MJ, Damásio L, Thompson G, Rocha A. Colloid centrifugation of fresh stallion semen before cryopreservation decreased microorganism load of frozen-thawed semen without affecting seminal kinetics.. Theriogenology 2015 Jan 15;83(2):186-91.
  72. Danquah CA, Osei-Djarbeng S, Appiah T, Boakye YD, Dau F. Combating biofilm and quorum sensing: a new strategy to fight infections.. Bact Bio (2019).
    doi: 10.5772/intechopen89227google scholar: lookup
  73. Kenney RM, Bergman RV, Cooper WL, Morse GW. Minimal contamination techniques for breeding mares: techniques and preliminary findings.. Proc Am Assoc Equine Pract (1975) 21:327–36.
  74. Gadea J. Review: semen extenders used in the artificial insemination of swine.. Spanish J Agric Res (2003) 1:17–27.
    doi: 10.5424/sjar/2003012-17google scholar: lookup
  75. Röpke T, Oldenhof H, Leiding C, Sieme H, Bollwein H, Wolkers WF. Liposomes for cryopreservation of bovine sperm.. Theriogenology 2011 Nov;76(8):1465-72.
  76. Kotilainen T, Huhtinen M, Katila T. Sperm-induced leukocytosis in the equine uterus.. Theriogenology 1994 Feb 2;41(3):629-36.
    doi: 10.1016/0093-691x(94)90173-gpubmed: 16727418google scholar: lookup
  77. Fiala SM, Pimentel CA, Steiger K, Mattos ALG, Gregory RM, Mattos RC. Effect of skim milk and seminal plasma uterine infusions in mares.. Theriogenology (2002) 58:491–4.
  78. Troedsson MH, Loset K, Alghamdi AM, Dahms B, Crabo BG. Interaction between equine semen and the endometrium: the inflammatory response to semen.. Anim Reprod Sci 2001 Dec 3;68(3-4):273-8.
    doi: 10.1016/s0378-4320(01)00164-6pubmed: 11744271google scholar: lookup
  79. Doty A, Buhi WC, Benson S, Scoggin KE, Pozor M, Macpherson M, Mutz M, Troedsson MH. Equine CRISP3 modulates interaction between spermatozoa and polymorphonuclear neutrophils.. Biol Reprod 2011 Jul;85(1):157-64.
    doi: 10.1095/biolreprod.110.084491pubmed: 21389342google scholar: lookup
  80. Morrell JM, Mari G, Kútvölgyi G, Meurling S, Mislei B, Iacono E, Rodriguez-Martinez H. Pregnancies following artificial insemination with spermatozoa from problem stallion ejaculates processed by single layer centrifugation with Androcoll-E.. Reprod Domest Anim 2011 Aug;46(4):642-5.
  81. Lindahl J, Dalin AM, Stuhtmann G, Morrell JM. Stallion spermatozoa selected by single layer centrifugation are capable of fertilization after storage for up to 96 h at 6°C prior to artificial insemination.. Acta Vet Scand 2012 Jul 12;54(1):40.
    doi: 10.1186/1751-0147-54-40pmc: PMC3537575pubmed: 22788670google scholar: lookup
  82. Morrell JM, Klein C, Lundeheim N, Erol E, Troedsson MH. Removal of bacteria from stallion semen by colloid centrifugation.. Anim Reprod Sci 2014 Feb;145(1-2):47-53.
  83. Al-Kass Z, Spergser J, Aurich C, Kuhl J, Schmidt K, Morrell JM. Effect of presence or absence of antibiotics and use of modified single layer centrifugation on bacteria in pony stallion semen.. Reprod Domest Anim 2019 Feb;54(2):342-349.
    doi: 10.1111/rda.13366pubmed: 30351456google scholar: lookup

Citations

This article has been cited 5 times.
  1. Nocera FP, Maurizi L, Masullo A, Nicoletti M, Conte AL, Brunetti F, De Martino L, Zagaglia C, Longhi C. Genotypic and Phenotypic Characterization of Escherichia coli Isolates Recovered from the Uterus of Mares with Fertility Problems. Animals (Basel) 2023 May 14;13(10).
    doi: 10.3390/ani13101639pubmed: 37238068google scholar: lookup
  2. Bazzano M, Zhu C, Laus F, Giambattista AD, Laghi L. Exploring the metabolome of seminal plasma in two different horse types: Light versus draft stallions. Reprod Domest Anim 2023 Jan;58(1):109-116.
    doi: 10.1111/rda.14270pubmed: 36151924google scholar: lookup
  3. Ferreira CSC, Pinna AE, Dos Santos IPF, Dias MCR, Dos Santos NSL, Bragueroli SDS, Quintino PM, Almeida GB, Penna BA, da Rocha EMDS, de Souza GN, Barbosa CG, de Jesus VLT, Jacob JCF. Powerflow Doppler Ultrasonography in the Evaluation of Mares with and Without Endometritis. Vet Sci 2025 Sep 28;12(10).
    doi: 10.3390/vetsci12100941pubmed: 41150081google scholar: lookup
  4. Chen Y, Zheng S, Zhao X, Zhang Y, Yu S, Wei J. Unveiling the protective effects of BMSCs/anti-miR-124-3p exosomes on LPS-induced endometrial injury. Funct Integr Genomics 2024 Feb 16;24(2):32.
    doi: 10.1007/s10142-024-01303-4pubmed: 38363406google scholar: lookup
  5. Virendra A, Gulavane SU, Ahmed ZA, Reddy R, Chaudhari RJ, Gaikwad SM, Shelar RR, Ingole SD, Thorat VD, Khanam A, Khan FA. Metagenomic analysis unravels novel taxonomic differences in the uterine microbiome between healthy mares and mares with endometritis. Vet Med Sci 2024 Mar;10(2):e1369.
    doi: 10.1002/vms3.1369pubmed: 38357732google scholar: lookup