{"id":700,"date":"2025-05-06T03:24:21","date_gmt":"2025-05-06T03:24:21","guid":{"rendered":"https:\/\/diyprp.com\/?p=700"},"modified":"2025-05-07T23:07:53","modified_gmt":"2025-05-07T23:07:53","slug":"autologous-thrombin-serum-ats-prp-activation","status":"publish","type":"post","link":"https:\/\/diyprp.com\/en\/autologous-thrombin-serum-ats-prp-activation\/","title":{"rendered":"Preparation of Autologous Thrombin Serum (ATS) for Platelet Activation"},"content":{"rendered":"\n

Preparing Autologous Thrombin Serum from Pre-Isolated PPP for 5 mL PRP Activation<\/strong>
Goal: <\/strong>Produce ~0.5 mL of autologous thrombin serum (ATS) to activate 5.0 mL of PRP.<\/p>\n\n\n\n

For instructions on how to formulate a 10% calcium chloride solution (which is required to produce ATS), study our formulation guide<\/a> beforehand.<\/p>\n\n\n\n

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Introduction<\/h3>\n\n\n\n

Autologous Thrombin Serum (ATS) is a powerful, patient-derived reagent created by triggering coagulation in platelet-poor plasma (PPP). The resulting serum is rich in thrombin\u2014a key enzyme in the coagulation cascade\u2014which serves as a potent platelet activator. When mixed with leukocyte-rich PRP (LR-PRP), ATS induces rapid and complete degranulation of platelets, resulting in maximal growth factor release and robust fibrin matrix formation. This makes it particularly ideal for musculoskeletal applications, such as intramuscular or tendon injections<\/strong>, where strong tissue adhesion and rapid regenerative signaling are desired.<\/p>\n\n\n\n

While chemical activators like calcium chloride can be used directly to initiate clotting, ATS offers more robust biological activation<\/strong> by mimicking physiological thrombin action. This approach provides enhanced control over clot formation and growth factor kinetics, especially critical in dynamic, high-load environments such as tendons and muscles.<\/p>\n\n\n\n

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Why and How ATS Is Used in PRP Therapy<\/h3>\n\n\n\n

ATS is typically used to activate LR-PRP before injection into soft tissues such as muscle or tendon. The thrombin it contains triggers a near-instantaneous platelet activation cascade<\/strong>, ensuring full degranulation and dense fibrin matrix generation at the site of application. This rapid activation profile is especially beneficial when high mechanical forces are present<\/strong>, such as in rotator cuff injuries, hamstring tears, or Achilles tendinopathy.<\/p>\n\n\n\n

Compared to direct calcium chloride activation, which relies on slower ionic pathways and fibrin generation, ATS delivers faster, stronger, and more localized clotting<\/strong>, promoting tissue adhesion and a high local concentration of trophic factors. Though more labor-intensive to prepare, its effects are clinically superior for many orthopedic and sports medicine procedures.<\/p>\n\n\n\n

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Safety Advantages of Autologous Thrombin<\/h3>\n\n\n\n

The source of thrombin<\/strong> used in regenerative medicine significantly impacts patient safety. Commercially available thrombin products are often derived from bovine plasma<\/strong>, which carries a well-documented risk of immune reactions<\/strong>. These reactions are not solely due to thrombin itself but also to impurities like bovine factor V<\/strong>, which may trigger antibodies that cross-react with human factor V<\/strong>, leading to coagulopathies and potentially life-threatening bleeding events<\/strong>. Additionally, bovine and pooled human thrombin sources raise concerns about transmissible spongiform encephalopathies (TSEs)<\/strong>, including variant Creutzfeldt-Jakob disease (vCJD)<\/strong>.<\/p>\n\n\n\n

For these reasons, autologous thrombin serum<\/strong>, derived from the patient\u2019s own blood, is widely recognized as the safest thrombin source<\/strong>. It eliminates xenogenic and allogenic risks while delivering highly effective platelet activation.<\/p>\n\n\n\n

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Glass Is Critical<\/h3>\n\n\n\n

When preparing ATS, the use of glass is not just recommended\u2014it is essential<\/strong> to ensure proper activation of the clotting cascade. The interior surface of glass provides negatively charged silicate groups that facilitate the initiation of the intrinsic pathway of coagulation. This charge is critical for the activation of factor XII (Hageman factor), which sets off a chain of enzymatic reactions ultimately converting prothrombin to thrombin. Plastic, in contrast, is inert and lacks the surface charge required to effectively initiate coagulation in PPP without additional biochemical triggers.<\/p>\n\n\n\n

Furthermore, glass enhances thrombin yield by providing a stable surface for fibrin clot formation and does not introduce leachables or hydrophobic interference that might occur with certain plastics. It also improves the visual inspection of clot formation, which is essential in determining the correct resting period before centrifugation. In short, glassware provides both the biochemical surface activity<\/strong> and physical transparency<\/strong> needed for precise and effective ATS generation.<\/p>\n\n\n\n

For optimal results, perform all resting and clotting steps in borosilicate or sterilized soda-lime glass containers. Avoid any surface coatings or plastic linings. If transferring to plastic after clot formation, ensure it is a certified medical-grade, low-protein-binding polypropylene or similar material.<\/p>\n\n\n\n

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Procedure to Create ATS<\/h3>\n\n\n\n

Materials Required:<\/strong><\/p>\n\n\n\n