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Fan B, Yi M, Yang G, Yang L, Shang W, Liu Y, Zhong X, Zhu L, Wang D. Expanded validation of the effect and quality of a pathogen inactivation system based on riboflavin photochemistry on platelet bacterial contamination. ANNALS OF TRANSLATIONAL MEDICINE 2022; 9:1736. [PMID: 35071430 PMCID: PMC8743726 DOI: 10.21037/atm-21-5834] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 11/24/2021] [Indexed: 12/19/2022]
Abstract
Background Bacterial contamination still poses serious challenges to blood safety. Platelets have the highest bacterial contamination risk of all blood components. Methods Twenty units of manual platelets were prepared from blood donated by our hospital, which were inoculated with Staphylococcus aureus and Escherichia coli suspensions. The riboflavin sodium phosphate solution was added into platelets, adjusted to a final concentration of 160 μmol/L. Platelets added into an illumination bag and placed in the inactivation system for riboflavin photochemistry at various doses. The inactivation effect of bacteria was evaluated on a Columbia blood agar plate by the plate counting method. Meanwhile, the blood routine, blood gas analysis, platelet aggregation test, and thromboelastogram of platelets before and after treatment were detected to evaluate the changes of platelet quality after treatment. Results the inactivation effect of S. aureus and E. coli at the inactivation dose (16.9 J/cm2) could reach more than 4 logs. After treatment at 16.9 J/cm2, the blood routine results showed that the platelet count was significantly different (P<0.05), and the blood gas analysis showed that the oxygen partial pressure (pO2) and lactic acid concentration (cLac) were also significantly different (P<0.05). After 16.9 J/cm2 treatment, there was a significant difference between Arachidonic acid (AA) and Collagen (Cog) activator groups in the platelet aggregation experiment (P<0.05), but there was no significant difference in the main thrombelastogram (TEG) parameters (R value, K value, angle value, MA value) after treatment (P>0.05). Conclusions The inactivation effect of this set of blood component pathogen inactivation system on platelet bacterial contamination could be considered to meet actual clinical needs, with the inactivation treatment having little impact on platelet function.
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Affiliation(s)
- Bin Fan
- Department of Blood Transfusion, Affiliated Hospital of Southwest Medical University, Luzhou, China.,Department of Blood Transfusion Medicine, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Meng Yi
- Department of Blood Transfusion Medicine, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Guang Yang
- Department of Laboratory, The Red Cross (SEN GONG GENERAL) Hospital of Heilongjiang, Heilongjiang, China
| | - Lu Yang
- Department of Blood Transfusion Medicine, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Wei Shang
- Department of Blood Transfusion Medicine, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Yi Liu
- Department of Blood Transfusion Medicine, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Xiaolong Zhong
- Department of Blood Transfusion, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Liguo Zhu
- Department of Blood Transfusion Medicine, The First Medical Center, Chinese PLA General Hospital, Beijing, China.,Department of Blood Transfusion, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - Deqing Wang
- Department of Blood Transfusion, Affiliated Hospital of Southwest Medical University, Luzhou, China.,Department of Blood Transfusion Medicine, The First Medical Center, Chinese PLA General Hospital, Beijing, China
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