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Lasta CS, Hlavac N, Marcondes NA, de Almeida Lacerda L, de Faria Valle S, González FHD. Blood bank quality control: pH assessment methods in platelet concentrates. Vet Res Commun 2024:10.1007/s11259-024-10536-4. [PMID: 39276269 DOI: 10.1007/s11259-024-10536-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2024] [Accepted: 09/09/2024] [Indexed: 09/16/2024]
Abstract
Platelet concentrates undergo progressive changes during storage, such as a decrease in pH. Additionally, pH and lactate production showed the strongest correlation with platelet survival in posttransfusion viability studies. pH measurement is a straightforward method for evaluating the quality control of blood components in blood bank practice. Our aim was to compare three pH assessment methods for canine platelet concentrates. The pH values of the canine platelet concentrates were assessed on the first day of storage using a calibrated pH meter, a portable gas analyzer and pH-indicator strips. The results from the pH meter and portable gas analyzer measurements were similar. The pH indicator strips presented higher average values compared to the other more reliable methods evaluated, which could result in the use of inadequate blood components. In conclusion, it is recommended to implement pH measurements using a pH meter for quality control in veterinary blood banks.
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Affiliation(s)
- Camila Serina Lasta
- Department of Veterinary Clinical Pathology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Nicole Hlavac
- Department of Anatomy, Pathology and Veterinary Clinics, Universidade Federal da Bahia, Salvador, Brazil.
| | | | | | - Stella de Faria Valle
- Department of Veterinary Clinical Pathology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Félix Hilário Díaz González
- Department of Veterinary Clinical Pathology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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Saunders CV, Pearce NB, George C. In vitro storage characteristics of neonatal platelet concentrates after addition of 20% PAS‐E. Vox Sang 2022; 117:1171-1178. [DOI: 10.1111/vox.13345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 07/22/2022] [Accepted: 07/27/2022] [Indexed: 11/28/2022]
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Jankowska KI, Nagarkatti R, Acharyya N, Dahiya N, Stewart CF, Macpherson RW, Wilson MP, Anderson JG, MacGregor SJ, Maclean M, Dey N, Debrabant A, Atreya CD. Complete Inactivation of Blood Borne Pathogen Trypanosoma cruzi in Stored Human Platelet Concentrates and Plasma Treated With 405 nm Violet-Blue Light. Front Med (Lausanne) 2020; 7:617373. [PMID: 33330577 PMCID: PMC7732587 DOI: 10.3389/fmed.2020.617373] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 11/02/2020] [Indexed: 12/05/2022] Open
Abstract
The introduction of pathogen reduction technologies (PRTs) to inactivate bacteria, viruses and parasites in donated blood components stored for transfusion adds to the existing arsenal toward reducing the risk of transfusion-transmitted infectious diseases (TTIDs). We have previously demonstrated that 405 nm violet-blue light effectively reduces blood-borne bacteria in stored human plasma and platelet concentrates. In this report, we investigated the microbicidal effect of 405 nm light on one important bloodborne parasite Trypanosoma cruzi that causes Chagas disease in humans. Our results demonstrated that a light irradiance at 15 mWcm−2 for 5 h, equivalent to 270 Jcm−2, effectively inactivated T. cruzi by over 9.0 Log10, in plasma and platelets that were evaluated by a MK2 cell infectivity assay. Giemsa stained T. cruzi infected MK2 cells showed that the light-treated parasites in plasma and platelets were deficient in infecting MK2 cells and did not differentiate further into intracellular amastigotes unlike the untreated parasites. The light-treated and untreated parasite samples were then evaluated for any residual infectivity by injecting the treated parasites into Swiss Webster mice, which did not develop infection even after the animals were immunosuppressed, further demonstrating that the light treatment was completely effective for inactivation of the parasite; the light-treated platelets had similar in vitro metabolic and biochemical indices to that of untreated platelets. Overall, these results provide a proof of concept toward developing 405 nm light treatment as a pathogen reduction technology (PRT) to enhance the safety of stored human plasma and platelet concentrates from bloodborne T. cruzi, which causes Chagas disease.
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Affiliation(s)
- Katarzyna I Jankowska
- Laboratory of Cellular Hematology, Office of Blood Research and Review, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD, United States
| | - Rana Nagarkatti
- Laboratory of Emerging Pathogens, Office of Blood Research and Review, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD, United States
| | - Nirmallya Acharyya
- Laboratory of Emerging Pathogens, Office of Blood Research and Review, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD, United States
| | - Neetu Dahiya
- Laboratory of Cellular Hematology, Office of Blood Research and Review, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD, United States
| | - Caitlin F Stewart
- The Robertson Trust Laboratory for Electronic Sterilization Technologies, Department of Electronic and Electrical Engineering, University of Strathclyde, Glasgow, United Kingdom
| | - Ruairidh W Macpherson
- The Robertson Trust Laboratory for Electronic Sterilization Technologies, Department of Electronic and Electrical Engineering, University of Strathclyde, Glasgow, United Kingdom
| | - Mark P Wilson
- The Robertson Trust Laboratory for Electronic Sterilization Technologies, Department of Electronic and Electrical Engineering, University of Strathclyde, Glasgow, United Kingdom
| | - John G Anderson
- The Robertson Trust Laboratory for Electronic Sterilization Technologies, Department of Electronic and Electrical Engineering, University of Strathclyde, Glasgow, United Kingdom
| | - Scott J MacGregor
- The Robertson Trust Laboratory for Electronic Sterilization Technologies, Department of Electronic and Electrical Engineering, University of Strathclyde, Glasgow, United Kingdom
| | - Michelle Maclean
- The Robertson Trust Laboratory for Electronic Sterilization Technologies, Department of Electronic and Electrical Engineering, University of Strathclyde, Glasgow, United Kingdom.,Department of Biomedical Engineering, University of Strathclyde, Glasgow, United Kingdom
| | - Neil Dey
- Canary, Inc., Acton, MA, United States
| | - Alain Debrabant
- Laboratory of Emerging Pathogens, Office of Blood Research and Review, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD, United States
| | - Chintamani D Atreya
- Laboratory of Cellular Hematology, Office of Blood Research and Review, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD, United States
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Bugert P. The gears keep turning: current progress in platelet function testing. Transfus Med Hemother 2013; 40:71. [PMID: 23653568 PMCID: PMC3638922 DOI: 10.1159/000350692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2024] Open
Affiliation(s)
- Peter Bugert
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University; German Red Cross Blood Service Baden-Württemberg – Hessen; Mannheim, Germany
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