Research Article: Optimizing Platelet and Leucocyte-Rich Plasma as Biomaterials for Ophthalmic Applications: Impact of Centrifugation Speed
Abstract:
Hemoderivatives have a wide range of medical applications. These physiologically active compounds are clinically effective in various therapeutic contexts, most notably in dermatology, traumatology, plastic surgery, and dentistry. In the field of regenerative medicine, blood products can be divided into three categories: autologous serum, platelet-rich plasma (PRP), and plasma rich in growth factors. PRP, composed of concentrated platelets and growth factors, is a product with tremendous potential because of its unique capacity to promote tissue regeneration. Ehrenfest et al proposed a classification of four distinct families based on fibrin architecture and leucocyte content. Low leukocyte content and low fibrin density following activation are characteristics of pure platelet-rich plasma (P-PRP), which qualifies it for usage in liquid solutions or as an active gel. However, apheresis equipment or other techniques are needed for its preparation. Platelet and Leukocyte-Rich Plasma (L-PRP) is a versatile material that can be used in liquid solutions or active gels due to its high leukocyte content and low-density fibrin mesh. Pure Platelet-Rich Fibrin (P-PRF) is not suited for injection or use like traditional fibrin glues since it is devoid of leukocytes and has a high density of fibrin mesh. It is only available in activated gel form. Platelet- and Leukocyte-Rich Fibrin (L-PRF) is only found in an activated gel state and is rich in leukocytes with a high-density fibrin network. Based on fibrin properties and cellular makeup, this classification scheme offers a sophisticated understanding of PRP variations and enables targeted uses. As such, it has become a vital tool in the field of regenerative medicine.– In ophthalmology, PRP in liquid and gel form are used as adjuvant therapy for corneal ulcers, corneal epithelial defects, dry eye syndrome, autoimmune diseases, and epithelial regeneration support.– Within the classification of PRP it has been observed that L-PRP has a positive effect on the stimulation of fibroblast activity, cell migration, and expression of genes related to extracellular matrix and adhesion molecules compared to P-PRP., Despite its potential application in ophthalmology, a few issues and limitations should be addressed before its wide application. Since there are no established standards for L-PRP preparation, the most significant point is standardizing L-PRP preparation, as its therapeutic effectiveness may be impacted by variations in content and quality among preparation techniques., Buffy coat separation and centrifugation speed are the two phases that impact L-PRP quality. The first stage in producing L-PRP is centrifugation speed. The type of centrifuge used, the target platelet concentration, the amount of blood processed, and the medical use of L-PRP all impact this decision., Ophthalmological L-PRP may require a different centrifugation speed than orthopedics or dermatology. Our main objective was to characterize blood products obtained at different centrifugation speeds to prepare L-PRP in liquid and gel form applicable to ophthalmologic settings.
Introduction:
Hemoderivatives have a wide range of medical applications. These physiologically active compounds are clinically effective in various therapeutic contexts, most notably in dermatology, traumatology, plastic surgery, and dentistry. In the field of regenerative medicine, blood products can be divided into three categories: autologous serum, platelet-rich plasma (PRP), and plasma rich in growth factors. PRP, composed of concentrated platelets and growth factors, is a product with tremendous potential because of its…
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