0000000000305261

AUTHOR

Piera Stefania Arfò

0000-0002-4782-6892

showing 3 related works from this author

Buffy coat-derived platelets cryopreserved using a new method: Results from in vitro studies

2018

Abstract Cryopreservation for the long-term storage of platelets (PLTs) is a useful method to overcome the limits of platelet shortage. This is an in vitro prospective study to evaluate the count, viability, and function of buffy coat-derived pooled platelet concentrates (BC-PLTs), treated with dimethyl sulphoxide (DMSO) and cryopreserved (CRY BC-PLTs) at −80 °C with a modified Valeri method. PLTs were stored in 6% DMSO with a patented kit. Overall, 49 BC-PLTs from 245 healthy volunteer donors were prepared, cryopreserved, and analysed before and after 3, 6, and 9 months of storage. In flow cytometry, a statistically significant reduction in CD 42b (92.7 ± 4.29% at T0 vs. 23.6 ± 27.5% at T3…

Blood PlateletsCryopreservationmedicine.diagnostic_testChemistryIn vitro studyEconomic shortageHematologyBuffy coat030204 cardiovascular system & hematologyCryopreserved plateletThrombin generationCryopreservationIn vitroFlow cytometryAndrology03 medical and health sciences0302 clinical medicineViabilityBlood Buffy CoatHealthy volunteersmedicineHumansPlateletDMSO030215 immunologyTransfusion and Apheresis Science
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Cryopreserved platelets: from in vitro thrombin generation potential to in vivo safety

2015

Abstract Background: Cryopreservation of platelets (PLTs) at -80°C with dimethyl sulfoxide (DMSO) can extend their shelf life up to 2 years. Cryopreserved PLTs (CRY-PLTs) are reported to have a greater in vivo hemostatic effect than liquid-stored PLTs. Aims of this study were: i. to evaluate the thrombin generation potential of buffy coat derived cryopreserved PLTs (CRY- BC PLT) in comparison with fresh buffy coat derived platelets concentrates; ii. to determine the efficacy and safety of CRY-PLTs transfusion in hematological patients with severe thrombocytopenia. Materials and methods: BC PLTs were obtained from 5 buffy coats and pooled. The final PLTs concentrates were leukoreduced by fil…

medicine.diagnostic_testP-selectinbusiness.industryImmunologyCell BiologyHematologyBuffy coatBiochemistryThromboelastographyCryopreservationAndrologyTissue factorThrombinIn vivoImmunologymedicinethrombin generation cryopreserved platelets DMSOPlateletbusinessmedicine.drug
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Buffy coat-derived platelets cryopreserved using a new method: Results from a pivotal clinical trial on thrombocytopenic patients with acute leukaemia

2019

Abstract The administration of cryopreserved platelets (PLTs) may overcome the limits of platelet shortage and availability, especially during some seasons or in specific contexts like rural areas. After in vitro validation studies, ad hoc prepared buffy coat-derived pooled platelet concentrates (BC-PLTs), treated with dimethyl sulphoxide (DMSO) and cryopreserved (CRY BC-PLTs) at -80 °C with a modified Valeri method, were transfused in patients with severe thrombocytopenia secondary to chemotherapy for acute leukaemia (AL). Five inpatients were enrolled in the pivotal clinical trial NCT02032134: 4 males and 1 female with a mean age of 71 years (range: 65–80). Four patients were diagnosed wi…

Blood PlateletsMalemedicine.medical_specialtymedicine.medical_treatmentPlatelet TransfusionBuffy coat030204 cardiovascular system & hematologyAcute leukaemiaCryopreservation03 medical and health sciences0302 clinical medicineInternal medicinemedicineHumansPlateletAdverse effectAgedAged 80 and overCryopreservationChemotherapybusiness.industryTransfusionThrombinSevere thrombocytopeniaThrombosisHematologyCryopreserved plateletThrombocytopeniaSevere thrombocytopeniaClinical trialLeukemia Myeloid AcuteBlood PreservationConcomitantBlood Buffy CoatFemaleSafetybusiness030215 immunologyTransfusion and Apheresis Science
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