Analyze Diet
Animals : an open access journal from MDPI2025; 15(24); 3586; doi: 10.3390/ani15243586

Addressing Heterogeneity in Equine PRP Therapies: A Scoping Review of Methods, Evidence, and Commercial Validation.

Abstract: (1) Background: Platelet-rich plasma (PRP) therapy has become a cornerstone of equine regenerative medicine, yet significant methodological variability compromises reproducibility and clinical comparability. (2) Methods: This scoping review systematically mapped and analyzed peer-reviewed studies describing equine PRP preparation methods and commercial systems (2000-2024) following PRISMA-ScR guidelines. (3) Results: Twenty-four studies met the inclusion criteria, encompassing 317 horses and both manual and commercial devices. Double-spin manual protocols predominated, though centrifugation parameters, anticoagulants, and activation strategies varied widely. Methodological quality, assessed using an adapted nine-criterion framework, revealed that only 29% of studies achieved comprehensive reporting, particularly lacking platelet-yield and activation details. An additional multilingual web search identified 24 veterinary PRP kits, of which only 10 had published validation in horses, exposing a pronounced gap between marketing claims and scientific evidence. (4) Conclusions: These discrepancies underscore the need for standardized reporting, transparent characterization, and independent evaluation of PRP systems. The proposed framework aims to guide future research toward reproducible, evidence-based practices that enhance therapeutic reliability and clinical translation in equine regenerative medicine.
Publication Date: 2025-12-13 PubMed ID: 41463871PubMed Central: PMC12729996DOI: 10.3390/ani15243586Google 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
  • Review

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.

Overview

  • This research reviews and evaluates the diversity and inconsistency in methods for preparing platelet-rich plasma (PRP) therapies in horses, highlighting gaps between commercial claims and scientific validation.
  • It aims to promote standardized protocols and improve reproducibility and clinical reliability in equine PRP regenerative treatments.

Background

  • Platelet-rich plasma (PRP) therapy is widely used in equine regenerative medicine to promote tissue healing and repair.
  • Despite its popularity, there is considerable variability in how PRP is prepared and administered across different studies and products.
  • This heterogeneity complicates the ability to compare clinical outcomes, undermining reproducibility and evidence-based practice.

Methods

  • The study conducted a scoping review following PRISMA-ScR (Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews) guidelines to map the landscape of equine PRP preparation methods.
  • Peer-reviewed articles from 2000 to 2024 were systematically searched and screened, focusing on those describing preparation methods and commercial PRP systems used in horses.
  • Methodological quality was assessed through a customized nine-criterion framework, emphasizing key elements such as reporting of platelet concentration (yield), anticoagulant use, centrifugation parameters, and activation protocols.
  • A separate multilingual web search was conducted to identify commercially available veterinary PRP kits and check for their scientific validation in equine applications.

Results

  • Twenty-four peer-reviewed studies met inclusion criteria, collectively involving 317 horses.
  • PRP was prepared using both manual protocols and commercial devices, with manual double-spin centrifugation protocols being the most common.
  • There was significant variation in key technical parameters across studies, such as:
    • Speed and duration of centrifugation
    • Types of anticoagulants used during preparation
    • Approaches to platelet activation (chemical or physical methods)
  • Only 29% of studies met comprehensive reporting standards, with many failing to provide detailed platelet yield and activation information.
  • The web search revealed 24 commercial veterinary PRP kits marketed for equine use.
  • However, just 10 of these kits had published validation data specific to horses, highlighting a substantial gap between commercial marketing claims and scientific evidence.

Conclusions

  • The variability and incomplete reporting in equine PRP research hinder reproducibility and evidence-based clinical application.
  • The disconnect between commercial claims and scientific validation poses risks for clinical reliability and efficacy in practice.
  • The authors propose a standardized reporting framework aimed at improving transparency, methodological consistency, and thorough characterization of PRP products and protocols.
  • This framework is designed to guide future research efforts, enabling more reproducible and scientifically robust evaluations of PRP therapies in equine regenerative medicine.
  • Ultimately, such standardization will enhance the therapeutic reliability, clinical translation, and acceptance of PRP treatments in veterinary practice.

Cite This Article

APA
Carmona JU, López C, Argüelles D. (2025). Addressing Heterogeneity in Equine PRP Therapies: A Scoping Review of Methods, Evidence, and Commercial Validation. Animals (Basel), 15(24), 3586. https://doi.org/10.3390/ani15243586

Publication

ISSN: 2076-2615
NlmUniqueID: 101635614
Country: Switzerland
Language: English
Volume: 15
Issue: 24
PII: 3586

Researcher Affiliations

Carmona, Jorge U
  • Grupo de Investigación Terapia Regenerativa, Departamento de Salud Animal, Universidad de Caldas, Calle 65 No 26-10, Manizales 170004, Colombia.
López, Catalina
  • Grupo de Investigación Patología Clínica Veterinaria, Departamento de Salud Animal, Universidad de Caldas, Calle 65 No 26-10, Manizales 170004, Colombia.
Argüelles, David
  • Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Universidad de Córdoba, Campus de Rabanales, 14071 Córdoba, Spain.

Conflict of Interest Statement

The authors declare no conflicts of interest.

References

This article includes 105 references
  1. Baptista P.M., Atala A.. Regenerative medicine: The hurdles and hopes.. Transl. Res. 2014;163:255–258.
    doi: 10.1016/j.trsl.2014.01.008pubmed: 24524876google scholar: lookup
  2. Atala A., Murphy S.. Regenerative medicine.. JAMA 2015;313:1413–1414.
    doi: 10.1001/jama.2015.1492pubmed: 25871665google scholar: lookup
  3. Ortved K.. The current state of veterinary regenerative medicine.. J. Am. Vet. Med. Assoc. 2024;262((Suppl. S1)):S4–S6.
    doi: 10.2460/javma.262.s1.s4pubmed: 38810663google scholar: lookup
  4. Julier Z., Park A.J., Briquez P.S., Martino M.M.. Promoting tissue regeneration by modulating the immune system.. Acta Biomater. 2017;53:13–28.
    doi: 10.1016/j.actbio.2017.01.056pubmed: 28119112google scholar: lookup
  5. Scala P., Rehak L., Giudice V., Ciaglia E., Puca A.A., Selleri C., Della Porta G., Maffulli N.. Stem Cell and Macrophage Roles in Skeletal Muscle Regenerative Medicine.. Int. J. Mol. Sci. 2021;22:10867.
    doi: 10.3390/ijms221910867pmc: PMC8509639pubmed: 34639203google scholar: lookup
  6. Voga M., Adamic N., Vengust M., Majdic G.. Stem Cells in Veterinary Medicine-Current State and Treatment Options.. Front. Vet. Sci. 2020;7:278.
    doi: 10.3389/fvets.2020.00278pmc: PMC7326035pubmed: 32656249google scholar: lookup
  7. Caplan A.I.. Mesenchymal Stem Cells: Time to Change the Name!. Stem Cells Transl. Med. 2017;6:1445–1451.
    doi: 10.1002/sctm.17-0051pmc: PMC5689741pubmed: 28452204google scholar: lookup
  8. Salamanna F., Veronesi F., Maglio M., Della Bella E., Sartori M., Fini M.. New and emerging strategies in platelet-rich plasma application in musculoskeletal regenerative procedures: General overview on still open questions and outlook.. BioMed Res. Int. 2015;2015:846045.
    doi: 10.1155/2015/846045pmc: PMC4436449pubmed: 26075269google scholar: lookup
  9. Cervelli V., Scioli M.G., Gentile P., Doldo E., Bonanno E., Spagnoli L.G., Orlandi A.. Platelet-rich plasma greatly potentiates insulin-induced adipogenic differentiation of human adipose-derived stem cells through a serine/threonine kinase Akt-dependent mechanism and promotes clinical fat graft maintenance.. Stem Cells Transl. Med. 2012;1:206–220.
    doi: 10.5966/sctm.2011-0052pmc: PMC3659852pubmed: 23197780google scholar: lookup
  10. Kim J.H., Yang H., Kim M.W., Cho K.S., Kim D.S., Yim H.E., Atala Z., Ko I.K., Yoo J.J.. The Delivery of the Recombinant Protein Cocktail Identified by Stem Cell-Derived Secretome Analysis Accelerates Kidney Repair After Renal Ischemia-Reperfusion Injury.. Front. Bioeng. Biotechnol. 2022;10:848679.
    doi: 10.3389/fbioe.2022.848679pmc: PMC9130839pubmed: 35646873google scholar: lookup
  11. Egashira K., Sumita Y., Zhong W., Takashi I., Ohba S., Nagai K., Asahina I.. Bone marrow concentrate promotes bone regeneration with a suboptimal-dose of rhBMP-2.. PLoS ONE 2018;13:e0191099.
  12. Doudna J.A., Charpentier E.. The new frontier of genome engineering with CRISPR-Cas9.. Science 2014;346:1258096.
    doi: 10.1126/science.1258096pubmed: 25430774google scholar: lookup
  13. Pérez Fraile A., González-Cubero E., Martínez-Flórez S., Olivera E.R., Villar-Suárez V.. Regenerative Medicine Applied to Musculoskeletal Diseases in Equines: A Systematic Review.. Vet. Sci. 2023;10:666.
    doi: 10.3390/vetsci10120666pmc: PMC10748126pubmed: 38133217google scholar: lookup
  14. Boone L., Peroni J.. Introduction to Equine Biologic and Regenerative Therapies.. Vet. Clin. N. Am. Equine Pract. 2023;39:419–427.
    doi: 10.1016/j.cveq.2023.06.006pubmed: 37558508google scholar: lookup
  15. Dahlgren L.A.. Regenerative Medicine Therapies for Equine Wound Management.. Vet. Clin. N. Am. Equine Pract. 2018;34:605–620.
    doi: 10.1016/j.cveq.2018.07.009pubmed: 30447771google scholar: lookup
  16. Ribitsch I, Oreff GL, Jenner F. Regenerative Medicine for Equine Musculoskeletal Diseases. Animals 2021;11:234.
    doi: 10.3390/ani11010234pmc: PMC7832834pubmed: 33477808google scholar: lookup
  17. Ortved KF. Regenerative Medicine and Rehabilitation for Tendinous and Ligamentous Injuries in Sport Horses. Vet. Clin. N. Am. Equine Pract. 2018;34:359–373.
    doi: 10.1016/j.cveq.2018.04.012pubmed: 29803299google scholar: lookup
  18. Camargo Garbin L, Lopez C, Carmona JU. A Critical Overview of the Use of Platelet-Rich Plasma in Equine Medicine Over the Last Decade. Front. Vet Sci. 2021;8:641818.
    doi: 10.3389/fvets.2021.641818pmc: PMC8044532pubmed: 33869321google scholar: lookup
  19. Sutter WW, Kaneps AJ, Bertone AL. Comparison of hematologic values and transforming growth factor-β and insulin-like growth factor concentrations in platelet concentrates obtained by use of buffy coat and apheresis methods from equine blood. Am. J. Vet. Res. 2004;65:924–930.
    doi: 10.2460/ajvr.2004.65.924pubmed: 15281650google scholar: lookup
  20. Argüelles D, Carmona JU, Pastor J, Iborra A, Viñals L, Martínez P, Bach E, Prades M. Evaluation of single and double centrifugation tube methods for concentrating equine platelets. Res. Vet. Sci. 2006;81:237–245.
    doi: 10.1016/j.rvsc.2005.12.008pubmed: 16969921google scholar: lookup
  21. Carmona JU, Argüelles D, Climent F, Prades M. Autologous Platelet Concentrates as a Treatment of Horses with Osteoarthritis: A Preliminary Pilot Clinical Study. J. Equine Vet. Sci. 2007;27:167–170.
  22. Argüelles D, Carmona JU, Climent F, Muñoz E, Prades M. Autologous platelet concentrates as a treatment for musculoskeletal lesions in five horses. Vet. Rec. 2008;162:208–211.
    doi: 10.1136/vr.162.7.208pubmed: 18281627google scholar: lookup
  23. Waselau M, Sutter WW, Genovese RL, Bertone AL. Intralesional injection of platelet-rich plasma followed by controlled exercise for treatment of midbody suspensory ligament desmitis in Standardbred racehorses. J. Am. Vet. Med. Assoc. 2008;232:1515–1520.
    doi: 10.2460/javma.232.10.1515pubmed: 18479242google scholar: lookup
  24. Smith JJ, Ross MW, Smith RKW. Anabolic effects of acellular bone marrow, platelet rich plasma, and serum on equine suspensory ligament fibroblasts in vitro. Vet. Comp. Orthop. Traumatol. 2006;19:43–47.
    pubmed: 16594543
  25. Schnabel LV, Mohammed HO, Jacobson MS, Fortier LA. Effects of platelet rich plasma and acellular bone marrow on gene expression patterns and DNA content of equine suspensory ligament explant cultures. Equine Vet. J. 2008;40:260–265.
    doi: 10.2746/042516408X278030pubmed: 18267879google scholar: lookup
  26. Schnabel LV, Mohammed HO, Miller BJ, McDermott WG, Jacobson MS, Santangelo KS, Fortier LA. Platelet Rich Plasma (PRP) enhances anabolic gene expression patterns in flexor digitorum superficialis tendons. J. Orthop. Res. 2007;25:230–240.
    doi: 10.1002/jor.20278pubmed: 17106885google scholar: lookup
  27. Carmona JU, Carmona-Ramírez LH, López C. Platelet-Rich Plasma and Related Orthobiologics for the Treatment of Equine Musculoskeletal Disorders—A Bibliometric Analysis from 2000 to 2024. Vet. Sci. 2024;11:385.
    doi: 10.3390/vetsci11080385pmc: PMC11359792pubmed: 39195839google scholar: lookup
  28. Marx RE. Platelet-rich plasma (PRP): What is PRP and what is not PRP?. Implant. Dent. 2001;10:225–228.
  29. Ehrenfest DMD, Andia I, Zumstein MA, Zhang CQ, Pinto NR, Bielecki T. Classification of platelet concentrates (Platelet-Rich Plasma-PRP, Platelet-Rich Fibrin-PRF) for topical and infiltrative use in orthopedic and sports medicine: Current consensus, clinical implications and perspectives. Muscles Ligaments Tendons J. 2014;4:3–9.
    doi: 10.32098/mltj.01.2014.02pmc: PMC4049647pubmed: 24932440google scholar: lookup
  30. Ehrenfest DMD, Rasmusson L, Albrektsson T. Classification of platelet concentrates: From pure platelet-rich plasma (P-PRP) to leucocyte- and platelet-rich fibrin (L-PRF). Trends Biotechnol. 2009;27:158–167.
    doi: 10.1016/j.tibtech.2008.11.009pubmed: 19187989google scholar: lookup
  31. Willow RC, Guzmán KE, Panek CL, Colbath AC. Stem cells and platelet-rich plasma for the treatment of naturally occurring equine tendon and ligament injuries: A systematic review and meta-analysis. J. Am. Vet. Med. Assoc. 2024;262((Suppl. S1)):S50–S60.
    pubmed: 38471305
  32. Peng C, Yang L, Labens R, Gao Y, Zhu Y, Li J. A systematic review and meta-analysis of the efficacy of platelet-rich plasma products for treatment of equine joint disease. Equine Vet. J. 2024;56:858–869.
    doi: 10.1111/evj.14042pubmed: 38185481google scholar: lookup
  33. Montano C, Auletta L, Greco A, Costanza D, Coluccia P, Del Prete C, Meomartino L, Pasolini MP. The Use of Platelet-Rich Plasma for Treatment of Tenodesmic Lesions in Horses: A Systematic Review and Meta-Analysis of Clinical and Experimental Data. Animals 2021;11:793.
    doi: 10.3390/ani11030793pmc: PMC7998797pubmed: 33809227google scholar: lookup
  34. Carmona JU, López C. Efficacy of Platelet-Rich Plasma in the Treatment of Equine Tendon and Ligament Injuries: A Systematic Review of Clinical and Experimental Studies. Vet. Sci. 2025;12:382.
    doi: 10.3390/vetsci12040382pmc: PMC12031177pubmed: 40284884google scholar: lookup
  35. Del Prete C, Montano C, Cocchia N, de Chiara M, Gasparrini B, Pasolini MP. Use of regenerative medicine in the treatment of endometritis in mares: A systematic review and meta-analysis. Theriogenology 2024;227:9–20.
  36. Nazaroff J, Oyadomari S, Brown N, Wang D. Reporting in clinical studies on platelet-rich plasma therapy among all medical specialties: A systematic review of Level I and II studies. PLoS ONE 2021;16:e0250007.
  37. Chahla J, Cinque ME, Piuzzi NS, Mannava S, Geeslin AG, Murray IR, Dornan GJ, Muschler GF, LaPrade RF. A Call for Standardization in Platelet-Rich Plasma Preparation Protocols and Composition Reporting: A Systematic Review of the Clinical Orthopaedic Literature. J. Bone Jt. Surg. Am. 2017;99:1769–1779.
    doi: 10.2106/JBJS.16.01374pubmed: 29040132google scholar: lookup
  38. Harrison P, Alsousou J. Studies on platelet rich plasma—New editorial policy for “Platelets”. Platelets 2020;31:281–282.
    doi: 10.1080/09537104.2020.1729013pubmed: 32124684google scholar: lookup
  39. Murray IR, Geeslin AG, Goudie EB, Petrigliano FA, LaPrade RF. Minimum Information for Studies Evaluating Biologics in Orthopaedics (MIBO): Platelet-Rich Plasma and Mesenchymal Stem Cells. J. Bone Jt. Surg. Am. 2017;99:809–819.
    doi: 10.2106/JBJS.16.00793pubmed: 28509821google scholar: lookup
  40. Tricco AC, Lillie E, Zarin W, O’Brien KK, Colquhoun H, Levac D, Moher D, Peters MD, Horsley T, Weeks L. PRISMA Extension for Scoping Reviews (PRISMA-ScR): Checklist and Explanation. Ann. Intern. Med. 2018;169:467–473.
    doi: 10.7326/M18-0850pubmed: 30178033google scholar: lookup
  41. Ouzzani M, Hammady H, Fedorowicz Z, Elmagarmid A. Rayyan-a web and mobile app for systematic reviews. Syst. Rev. 2016;5:210.
    doi: 10.1186/s13643-016-0384-4pmc: PMC5139140pubmed: 27919275google scholar: lookup
  42. Harrison P, Alsousou J, Andia I, Burnouf T, Ehrenfest DD, Everts P, Langer H, Magalon J, Marck R, Gresele P. The use of platelets in regenerative medicine and proposal for a new classification system: Guidance from the SSC of the ISTH. J. Thromb. Haemost. 2018;16:1895–1900.
    doi: 10.1111/jth.14223pubmed: 30099839google scholar: lookup
  43. Pedroso ACBDR, Peixoto ADC, Oliveira ED, Dutra HT, Basile RC, Brandstetter LRG, Moura VMBDD. Influencing factors for preparation of platelet-rich plasma in horses. Semin. Cienc. Agrar. 2021;42:2327–2337.
  44. O’Shea CM, Werre SR, Dahlgren LA. Comparison of platelet counting technologies in equine platelet concentrates. Vet. Surg. 2015;44:304–313.
  45. McClain AK, McCarrel TM. The effect of four different freezing conditions and time in frozen storage on the concentration of commonly measured growth factors and enzymes in equine platelet-rich plasma over six months. BMC Vet. Res. 2019;15:292.
    doi: 10.1186/s12917-019-2040-4pmc: PMC6694589pubmed: 31412868google scholar: lookup
  46. Brown KA, Gregorio EN, Barot D, Usimaki A, Linardi RL, Missanelli JR, You Y, Robinson MA, Ortved KF. Single-dose nonsteroidal anti-inflammatory drugs in horses have no impact on concentrations of cytokines or growth factors in autologous protein solution and platelet-rich plasma. Am. J. Vet. Res. 2024;85.
    doi: 10.2460/ajvr.23.11.0258pubmed: 38346393google scholar: lookup
  47. Brown KA, Gregorio EN, Barot D, Usimaki A, Linardi RL, Missanelli JR, You Y, Robinson MA, Ortved KF. Prolonged administration of oral phenylbutazone and firocoxib in horses has no impact on selected cytokine and growth factor concentrations in platelet-rich plasma and autologous protein solution. Am. J. Vet. Res. 2024;85.
    doi: 10.2460/ajvr.24.04.0098pubmed: 38889765google scholar: lookup
  48. Ionita CR, Troillet AR, Vahlenkamp TW, Winter K, Brehm W, Ionita JC. Comparison of humoral insulin-like growth factor-1, platelet-derived growth factor-BB, transforming growth factor-β1, and interleukin-1 receptor antagonist concentrations among equine autologous blood-derived preparations. Am. J. Vet. Res. 2016;77:898–905.
    doi: 10.2460/ajvr.77.8.898pubmed: 27463555google scholar: lookup
  49. Mageed M, Ionita C, Kissich C, Brehm W, Winter K, Ionita JC. Influence of cryopreservation and mechanical stimulation on equine Autologous Conditioned Plasma (ACP®). Tierarztl. Praxis. Ausg. G Grosstiere Nutztiere. 2015;43:97–104.
    doi: 10.15653/TPG-130904pubmed: 25782443google scholar: lookup
  50. Textor JA, Murphy KC, Leach JK, Tablin F. Ultrastructure and growth factor content of equine platelet-rich fibrin gels. Am. J. Vet. Res. 2014;75:392–401.
    doi: 10.2460/ajvr.75.4.392pubmed: 24669926google scholar: lookup
  51. Ionita JC, Kissich C, Gottschalk J, Einspanier A, Köller G, Winter K, Brehm W. Comparison of cellular and growth factor concentrations in equine Autologous Conditioned Plasma® (ACP) and manually prepared Platelet Rich Plasma (mPRP). Pferdeheilkunde 2014;30:195–206.
    doi: 10.21836/PEM20140208google scholar: lookup
  52. Textor JA, Tablin F. Activation of equine platelet-rich plasma: Comparison of methods and characterization of equine autologous thrombin. Vet. Surg. 2012;41:784–794.
  53. Ortved KF, Alward L, Cowles B, Linardi R, Barot D, Usimaki A, Fedie JR, Amodie D, Goodrich LR. Use of quantitative mass spectrometry-based proteomics and ELISA to compare the alpha 2 macroglobulin concentration in equine blood-based products processed by three different orthobiologic devices. Front. Vet. Sci. 2024;11:1335972.
    doi: 10.3389/fvets.2024.1335972pmc: PMC10884094pubmed: 38406632google scholar: lookup
  54. Muir SM, Reisbig N, Baria M, Kaeding C, Bertone AL. The Concentration of Plasma Provides Additional Bioactive Proteins in Platelet and Autologous Protein Solutions. Am. J. Sports Med. 2019;47:1955–1963.
    doi: 10.1177/0363546519849671pubmed: 31125271google scholar: lookup
  55. Fantini P, Jimenez-Aristizabal R, Iborra A, Miranda ALS, Maranhão RDPA, Leme FDOP, Palhares MS, Prades M. Cellular components and TGF-β1 content of a closed Tube system for Platelet Rich Plasma acquisition in horse. Arq. Bras. Med. Vet. Zootec. 2022;74:93–100.
    doi: 10.1590/1678-4162-12257google scholar: lookup
  56. Segabinazzi LG, Podico G, Rosser MF, Nanjappa SG, Alvarenga MA, Canisso IF. Three Manual Noncommercial Methods to Prepare Equine Platelet-Rich Plasma. Animals 2021;11:1478.
    doi: 10.3390/ani11061478pmc: PMC8223772pubmed: 34063777google scholar: lookup
  57. Radtke AV, Goodale MB, Fortier LA. Platelet and Leukocyte Concentration in Equine Autologous Conditioned Plasma Are Inversely Distributed by Layer and Are Not Affected by Centrifugation Rate. Front. Vet. Sci. 2020;7:173.
    doi: 10.3389/fvets.2020.00173pmc: PMC7235160pubmed: 32478101google scholar: lookup
  58. Fukuda K, Kuroda T, Tamura N, Mita H, Kasashima Y. Optimal activation methods for maximizing the concentrations of platelet-derived growth factor-BB and transforming growth factor-β1 in equine platelet-rich plasma. J. Vet. Med. Sci. 2020;82:1472–1479.
    doi: 10.1292/jvms.20-0167pmc: PMC7653321pubmed: 32814750google scholar: lookup
  59. Seidel SR, Vendruscolo CP, Moreira JJ, Fülber J, Ottaiano TF, Oliva ML, Michelacci YM, Baccarin RY. Does Double Centrifugation Lead to Premature Platelet Aggregation and Decreased TGF-β1 Concentrations in Equine Platelet-Rich Plasma?. Vet. Sci. 2019;6:68.
    doi: 10.3390/vetsci6030068pmc: PMC6789863pubmed: 31438534google scholar: lookup
  60. Miranda S, Costa MFM, Rebouças N, Ramos MT, Lessa DA, Alencar NX. Protocols for preparation of platelet rich plasma (PRP) in Quarter Horses. Pesqui. Vet. Bras. 2019;39:614–621.
  61. Lee EB, Kim JW, Seo JP. Comparison of the methods for platelet rich plasma preparation in horses. J. Anim. Sci. Technol. 2018;60:20.
    doi: 10.1186/s40781-018-0178-4pmc: PMC6098823pubmed: 30147942google scholar: lookup
  62. Seabaugh KA, Thoresen M, Giguère S. Extracorporeal Shockwave Therapy Increases Growth Factor Release from Equine Platelet-Rich Plasma In Vitro. Front. Vet. Sci. 2017;4:205.
    doi: 10.3389/fvets.2017.00205pmc: PMC5726030pubmed: 29270410google scholar: lookup
  63. Giraldo CE, Álvarez ME, Carmona JU. Influence of calcium salts and bovine thrombin on growth factor release from equine platelet-rich gel supernatants. Vet. Comp. Orthop. Traumatol. 2017;30:1–7.
    doi: 10.3415/VCOT-16-02-0026pubmed: 27849108google scholar: lookup
  64. Conceição ML, Alvarenga ML, Souza JB, Mattos LHL, Rodrigues CA, Watanabe MJ, Hussni CA, Alves ALG. Comparative study of double spin and use of E-PET filter (Equine Platelet Enhancement Therapy) to obtain platelet rich plasma in horses. Pesqui. Vet. Bras. 2017;37:215–220.
  65. Fantini P, Palhares MS, Prades M, Macedo VC, Silva Filho JM, Leme FOP, Carmona JU. Equine platelet-rich plasma cryopreservation. Arq. Bras. Med. Vet. Zootec. 2016;68:73–81.
    doi: 10.1590/1678-4162-8078google scholar: lookup
  66. do Amaral Kwirant L.A., De La Corte F.D., Brass K.E., Rubin M.I.B., França R.T., Vieira P.S., Cocco M.. Cryopreservation protocol for equine platelet-rich plasma. Semin. Cienc. Agrar. 2016;37:1389–1396.
  67. Hessel L.N., Bosch G., Van Weeren P.R., Ionita J.C.. Equine autologous platelet concentrates: A comparative study between different available systems. Equine Vet. J. 2015;47:319–325.
    doi: 10.1111/evj.12288pubmed: 24773596google scholar: lookup
  68. Giraldo C.E., Álvarez M.E., Carmona J.U.. Effects of sodium citrate and acid citrate dextrose solutions on cell counts and growth factor release from equine pure-platelet rich plasma and pure-platelet rich gel. BMC Vet. Res. 2015;11:60.
    doi: 10.1186/s12917-015-0370-4pmc: PMC4364319pubmed: 25889052google scholar: lookup
  69. Giraldo C.E., López C., Álvarez M.E., Samudio I.J., Prades M., Carmona J.U.. Effects of the breed, sex and age on cellular content and growth factor release from equine pure-platelet rich plasma and pure-platelet rich gel. BMC Vet. Res. 2013;9:29.
    doi: 10.1186/1746-6148-9-29pmc: PMC3577464pubmed: 23402541google scholar: lookup
  70. da Fontoura Pereira R.C., Zacarias G.V.F., Cantarelli C., Corrêa M.M.B., da Silva G.B., Barbosa A.L.T., Brass K.E., De La Corte F.D.. Evaluation of seven platelet-rich plasma processing protocols in the equine species. Cienc. Rural. 2013;43:1122–1127.
  71. Zandim B.M., Souza M.V., Magalhães P.C., Benjamin L.D., Maia L., Oliveira A.C., Pinto J.D., Ribeiro Júnior J.I.. Platelet activation: Ultrastructure and morphometry in platelet-rich plasma of horses. Pesqui. Vet. Bras. 2012;32:83–92.
  72. Vendruscolo C.P., Carvalho A.D.M., Moraes L.F., Maia L., Queiroz D.L., Watanabe M.J., Yamada A.L.M., Alves A.L.G.. Avaliação da eficácia de diferentes protocolos de preparo do Plasma Rico em Plaquetas para uso em Medicina Equina. Pesqui. Vet. Bras. 2012;32:106–110.
  73. Kissich C., Gottschalk J., Lochmann C., Einspanier A., Bottcher P., Winter K., Brehm W., Ionita J.C.. Biochemical characteristics of the equine autologous conditioned Plasma® (ACP). Pferdeheilkunde 2012;28:258–267.
    doi: 10.21836/PEM20120302google scholar: lookup
  74. Fontenot R.L., Sink C.A., Werre S.R., Weinstein N.M., Dahlgren L.A.. Simple tube centrifugation for processing platelet-rich plasma in the horse. Can. Vet. J. 2012;53:1266–1272.
    pmc: PMC3500116pubmed: 23729823
  75. Textor J.A., Norris J.W., Tablin F.. Effects of preparation method, shear force, and exposure to collagen on release of growth factors from equine platelet-rich plasma. Am. J. Vet. Res. 2011;72:271–278.
    doi: 10.2460/ajvr.72.2.271pubmed: 21281204google scholar: lookup
  76. Carmona J.U., Argüelles D., Prades M.. Transforming growth factor beta-3 and nitric oxide levels in four autologous platelet concentrates and plasma derived from equine blood. Arch. Med. Vet. 2008;40:155–160.
  77. Bosch G., Moleman M., Barneveld A., van Weeren P.R., Van Schie H.T.M.. The effect of platelet-rich plasma on the neovascularization of surgically created equine superficial digital flexor tendon lesions. Scand. J. Med. Sci. Sports. 2011;21:554–561.
  78. Bosch G., van Schie H.T., de Groot M.W., Cadby J.A., van de Lest C.H., Barneveld A., van Weeren P.R.. Effects of platelet-rich plasma on the quality of repair of mechanically induced core lesions in equine superficial digital flexor tendons: A placebo-controlled experimental study. J. Orthop. Res. 2010;28:211–217.
    doi: 10.1002/jor.20980pubmed: 19714688google scholar: lookup
  79. Geburek F., Roggel F., van Schie H.T., Beineke A., Estrada R., Weber K., Hellige M., Rohn K., Jagodzinski M., Welke B.. Effect of single intralesional treatment of surgically induced equine superficial digital flexor tendon core lesions with adipose-derived mesenchymal stromal cells: A controlled experimental trial. Stem Cell Res. Ther. 2017;8:129.
    doi: 10.1186/s13287-017-0564-8pmc: PMC5460527pubmed: 28583184google scholar: lookup
  80. Geburek F., Gaus M., van Schie H.T., Rohn K., Stadler P.M.. Effect of intralesional platelet-rich plasma (PRP) treatment on clinical and ultrasonographic parameters in equine naturally occurring superficial digital flexor tendinopathies—A randomized prospective controlled clinical trial. BMC Vet. Res. 2016;12:191.
    doi: 10.1186/s12917-016-0826-1pmc: PMC5015224pubmed: 27604193google scholar: lookup
  81. Castelijns G., Crawford A., Schaffer J., Ortolano G.A., Beauregard T., Smith R.K.W.. Evaluation of a filter-prepared platelet concentrate for the treatment of suspensory branch injuries in horses. Vet. Comp. Orthop. Traumatol. 2011;24:363–369.
    doi: 10.3415/VCOT-11-01-0001pubmed: 21887455google scholar: lookup
  82. Maleas G., Mageed M.. Effectiveness of Platelet-Rich Plasma and Bone Marrow Aspirate Concentrate as Treatments for Chronic Hindlimb Proximal Suspensory Desmopathy. Front. Vet. Sci. 2021;8:678453.
    doi: 10.3389/fvets.2021.678453pmc: PMC8253571pubmed: 34222402google scholar: lookup
  83. Mirza M.H., Bommala P., Richbourg H.A., Rademacher N., Kearney M.T., Lopez M.J.. Gait Changes Vary among Horses with Naturally Occurring Osteoarthritis Following Intra-articular Administration of Autologous Platelet-Rich Plasma. Front. Vet. Sci. 2016;3:9.
    doi: 10.3389/fvets.2016.00029pmc: PMC4829588pubmed: 27148544google scholar: lookup
  84. Smit Y., Marais J.H., Thompson P.N., Mahne A.T., Goddard A.. Clinical findings, synovial fluid cytology and growth factor concentrations after intra-articular use of a platelet-rich product in horses with osteoarthritis. J. S. Afr. Vet. Assoc. 2019;90:e1–e9.
    doi: 10.4102/jsava.v90i0.1721pmc: PMC6556911pubmed: 31170778google scholar: lookup
  85. Textor J.A., Willits N.H., Tablin F.. Synovial fluid growth factor and cytokine concentrations after intra-articular injection of a platelet-rich product in horses. Vet. J. 2013;198:217–223.
    doi: 10.1016/j.tvjl.2013.07.020pubmed: 23992870google scholar: lookup
  86. Park C.S., Jo Y.J., Eo K.Y., Park T.M., Cho G.J.. Therapeutic Effect of Equine Musculoskeletal Disease using Autogenous Platelet Rich Plasma. Int. J. Vet. Sci. 2022;11:520–525.
  87. Georg R., Maria C., Gisela A., Bianca C.. Autologous conditioned plasma as therapy of tendon and ligament lesions in seven horses. J. Vet. Sci. 2010;11:173–175.
    doi: 10.4142/jvs.2010.11.2.173pmc: PMC2873820pubmed: 20458161google scholar: lookup
  88. Giunta K., Donnell J.R., Donnell A.D., Frisbie D.D.. Prospective randomized comparison of platelet rich plasma to extracorporeal shockwave therapy for treatment of proximal suspensory pain in western performance horses. Res. Vet. Sci. 2019;126:38–44.
    doi: 10.1016/j.rvsc.2019.07.020pubmed: 31430578google scholar: lookup
  89. Moran J.A.M.. PRP and hyaluronic acid reduce synovitis in horses after arthroscopic OCD removal in Andalusian horses. Res. Vet. Sci. 2025;193:105768.
    doi: 10.1016/j.rvsc.2025.105768pubmed: 40582041google scholar: lookup
  90. Moran J.A.M.. Clinical and ultrasonographic evaluation of the treatment of naturally occurring front limb suspensory branch injuries in sport horses with a standardized leukocyte poor platelet-rich plasma. Emerg. Anim. Species. 2022;4:100007.
    doi: 10.1016/j.eas.2022.100007google scholar: lookup
  91. McCarrel T.M., Minas T., Fortier L.A.. Optimization of leukocyte concentration in platelet-rich plasma for the treatment of tendinopathy. J. Bone Jt. Surg. 2012;94:e143.
    doi: 10.2106/JBJS.L.00019pubmed: 23032594google scholar: lookup
  92. Brossi P.M., Moreira J.J., Machado T.S., Baccarin R.Y.. Platelet-rich plasma in orthopedic therapy: A comparative systematic review of clinical and experimental data in equine and human musculoskeletal lesions. BMC Vet. Res. 2015;11:98.
    doi: 10.1186/s12917-015-0403-zpmc: PMC4449579pubmed: 25896610google scholar: lookup
  93. Carmona J.U., López C.. Platelet-Rich Plasma in Equine Osteoarthritis: A Systematic Review of Clinical and Experimental Evidence. Animals 2025;15:2647.
    doi: 10.3390/ani15182647pmc: PMC12466402pubmed: 41007891google scholar: lookup
  94. Ríos D.L., López C., Carmona J.U.. Evaluation of the anti-inflammatory effects of two platelet-rich gel supernatants in an in vitro system of cartilage inflammation. Cytokine 2015;76:505–513.
    doi: 10.1016/j.cyto.2015.07.008pubmed: 26185893google scholar: lookup
  95. Ríos D.L., López C., Álvarez M.E., Samudio I.J., Carmona J.U.. Effects over time of two platelet gel supernatants on growth factor, cytokine and hyaluronan concentrations in normal synovial membrane explants challenged with lipopolysaccharide. BMC Musculoskelet. Disord. 2015;16:153.
    doi: 10.1186/s12891-015-0605-3pmc: PMC4475292pubmed: 26092588google scholar: lookup
  96. Carmona J.U., Ríos D.L., López C., Álvarez M.E., Pérez J.E.. Proinflammatory and Anabolic Gene Expression Effects of Platelet-Rich Gel Supernatants on Equine Synovial Membrane Explants Challenged with Lipopolysaccharide. Vet. Med. Int. 2017;2017:6059485.
    doi: 10.1155/2017/6059485pmc: PMC5518502pubmed: 28761774google scholar: lookup
  97. Castillo-Franz C., López C., Carmona J.U.. Evaluation of the Catabolic and Anabolic Gene Expression Effects and Histology Changes induced by Platelet-Rich Gel Supernatants in Equine Suspensory Ligament Explants Challenged with Lipopolysaccharide. Muscles Ligaments Tendons J. 2021;11:1–14.
    doi: 10.32098/mltj.01.2021.01google scholar: lookup
  98. Castillo-Franz C., López C., Álvarez M.E., Giraldo C.E., Carmona J.U.. Anti-inflammatory effects of two platelet-rich gel supernatants in an in vitro system of ligament desmitis. Muscles Ligaments Tendons J. 2019;9:506–516.
  99. Romero A., Barrachina L., Ranera B., Remacha A.R., Moreno B., De Blas I., Sanz A., Vázquez F.J., Vitoria A., Junquera C.. Comparison of autologous bone marrow and adipose tissue derived mesenchymal stem cells, and platelet rich plasma, for treating surgically induced lesions of the equine superficial digital flexor tendon. Vet. J. 2017;224:76–84.
    doi: 10.1016/j.tvjl.2017.04.005pubmed: 28697880google scholar: lookup
  100. Maia L., de Souza M.V., Júnior J.I.R., de Oliveira A.C., Alves G.E.S., dos Anjos Benjamin L., Silva Y.F.R.S., Zandim B.M., Moreira J.D.C.L.. Platelet-Rich Plasma in the Treatment of Induced Tendinopathy in Horses: Histologic Evaluation. J. Equine Vet. Sci. 2009;29:618–626.
  101. Zandim B.M., De Souza M.V., Frassy L.N., Vilória M.I.V., Maia L., Fonseca C.C., Valente F.L., Moreira J.D.C.L., Magalhães P.C.. Immunohistochemistry of factor VIII, histology and morphometry in equine tendon treated with platelet—rich plasma. Rev. Bras. Med. Vet. 2013;35:169–184.
  102. Carvalho A.M., Badial P.R., Álvarez L.E.C., Yamada A.L.M., Borges A.S., Deffune E., Hussni C.A., Garcia Alves A.L.. Equine tendonitis therapy using mesenchymal stem cells and platelet concentrates: A randomized controlled trial. Stem Cell Res. Ther. 2013;4:85.
    doi: 10.1186/scrt236pmc: PMC3854756pubmed: 23876512google scholar: lookup
  103. Alvarez M.E., Giraldo C.E., Carmona J.U.. Monitoring bacterial contamination in equine platelet concentrates obtained by the tube method in a clean laboratory environment under three different technical conditions. Equine Vet. J. 2010;42:63–67.
    doi: 10.2746/042516409X455221pubmed: 20121916google scholar: lookup
  104. Carmona J.U., López C., Jurado-Grisales C.. A Simple Double Centrifugation Tube Method to Obtain Platelet-rich Plasma from Equine Blood. J. Vis. Exp. 2025;222.
    doi: 10.3791/67985pubmed: 40889208google scholar: lookup
  105. Carmona J.U., López C.. Questions statistical power of study on release of growth factors from platelet-rich plasma. Am. J. Vet. Res. 2011;72:998.
    pubmed: 21801054

Citations

This article has been cited 1 times.
  1. Carmona JU, Hernández-Valencia JD, López C. Molecular and Regenerative Effects of Platelet-Rich Plasma and Related Hemocomponents in Animal Models of Liver Injury-A Systematic Review. Int J Mol Sci 2026 Jan 20;27(2).
    doi: 10.3390/ijms27021013pubmed: 41596657google scholar: lookup