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Comparative Coagulation

About the Coagulation Laboratory

Mission Statement

The Comparative Coagulation Section is a service laboratory that specializes in animal hemostasis testing. We perform translational research to characterize new animal models, develop assay systems to improve the predictive value of preclinical testing, and collaborate in multi-species treatment trials to further our understanding of hemostatic defects in all species. Our goal is to provide veterinarians and researchers ready access to advanced diagnostics in all aspects of coagulation for all species.


Marjory Brooks, DVM, Diplomate ACVIM (Laboratory Director)
James Catalfamo, PhD (Faculty emeritus)
Martha Taranto AAS, BS (Laboratory Technician)
Amelia Frye BS, LVT (Laboratory Technician)
Alyssa Stablein BS (Research Support Specialist)

Laboratory aides 2017
Danielle Maguire
Christoph Schnabel

Group image of coagulation lab members

Milestones in the History of the Coagulation Lab

  • Laboratory of comparative research in coagulation is established in 1965 by Dr. W. Jean Dodds at the Wadsworth Center in Albany, NY.
  • Early identification of canine hemophilia A, hemophilia B, and von Willebrand disease.
  • Transfusion trials in dogs demonstrate efficacy of clotting factor concentrates that predict success in treatment of people with hemophilia.  
  • Dr. Jim Catalfamo joins the laboratory in 1986 and assumes directorship in 1991.
  • New von Willebrand factor assay technique is patented and leads to the characterization of VWD subtypes in dogs and horses.
  • Hereditary thrombasthenia in Otterhounds and basset thrombopathia are first characterized.
  • Dr. Marjory Brooks joins the laboratory in 1988 as a specialist in veterinary internal medicine, with a background in oncology and transfusion medicine.
  • Comparative Coagulation laboratory relocates to Cornell University in 1994.
  • A diagnostic service laboratory for veterinary coagulation testing is established.
  • Platelet function and flow cytometry techniques identify Scott syndrome in dogs
  • Dr. Brooks becomes laboratory director in 2009 with Dr. Catalfamo continuing research in platelet physiology

Lab Photos

Amelia Frye at lab station      Lab director and techniciansChristoph Schnabel in labAmelia Frye at lab bench     Martha Taranto at lab benchStudent at lab station