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Updated: Nov 14, 2025
08:04
Analyzing Platelet Subpopulations by Multi-color Flow Cytometry
Published on: June 10, 2025
836
Effect of local anesthetics on platelet physiology and function
Ryan C Dregalla1, Yvette Uribe1, Marko Bodor1,2,3,4
1Napa Medical Research Foundation, Napa, California, USA.
Summary
Bupivacaine harms platelets, increasing apoptosis and reducing adhesion. Lidocaine and ropivacaine, however, are safe for platelet preparations, allowing pain reduction during orthopedic treatments.
Area of Science:
- Orthopedics
- Hematology
- Pharmacology
Background:
- Local anesthetics are frequently used with platelet-rich plasma (PRP) for orthopedic and sports injuries.
- Previous research indicates local anesthetics negatively impact stromal cells, but their platelet effects are unknown.
Purpose of the Study:
- To investigate the impact of lidocaine, bupivacaine, and ropivacaine on platelet viability, intracellular physiology, and function.
- To determine the safety of commonly used local anesthetics in PRP formulations.
Main Methods:
- Platelet preparations were exposed to lidocaine (1%), bupivacaine (0.75%), and ropivacaine (0.5%) at 1:1 and 1:3 ratios.
- Assessed platelet morphology, viability, intracellular calcium, reactive oxygen species (ROS), apoptosis, and adhesion using microscopy and flow cytometry.
Main Results:
- Bupivacaine significantly increased ROS, disrupted calcium regulation, induced apoptosis, and decreased platelet adhesion.
- Lidocaine and ropivacaine showed minimal impact, comparable to saline, with only slight ROS elevation indicating mild mitochondrial stress.
Conclusions:
- Bupivacaine (0.75%) is detrimental to platelets, compromising viability and adhesion while promoting apoptosis.
- Lidocaine (1%) and ropivacaine (0.5%) are safe for platelet preparations at 1:1 and 1:3 dilutions, preserving therapeutic potential for pain management in PRP procedures.
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