RT Journal Article T1 Blood Rheological Characterization of beta-Thalassemia Trait and Iron Deficiency Anemia Using Front Microrheometry A1 Mendez-Mora, Lourdes A1 Cabello-Fusares, Maria A1 Ferre-Torres, Josep A1 Riera-Llobet, Carla A1 Krishnevskaya, Elena A1 Trejo-Soto, Claudia A1 Payan-Pernia, Salvador A1 Hernandez-Rodriguez, Ines A1 Morales-Indiano, Cristian A1 Alarcon, Tomas A1 Vives-Corrons, Joan-Lluis A1 Hernandez-Machado, Aurora K1 beta-thalassemia trait K1 iron deficiency (anemia) K1 anemia K1 hemorheology K1 rheology K1 microfluidics K1 blood rheology K1 microrheometer K1 Cell membrane K1 Deformation K1 Aggregation K1 Viscosity AB The purpose of this work is to develop a hematocrit-independent method for the detection of beta-thalassemia trait (beta-TT) and iron deficiency anemia (IDA), through the rheological characterization of whole blood samples from different donors. The results obtained herein are the basis for the development of a front microrheometry point-of-care device for the diagnosis and clinical follow-up of beta-TT patients suffering hematological diseases and alterations in the morphology of the red blood cell (RBC). The viscosity is calculated as a function of the mean front velocity by detecting the sample fluid-air interface advancing through a microfluidic channel. Different viscosity curves are obtained for healthy donors, beta-TT and IDA samples. A mathematical model is introduced to compare samples of distinct hematocrit, classifying the viscosity curve patterns with respect to the health condition of blood. The viscosity of the fluid at certain shear rate values varies depending on several RBC factors such as shape and size, hemoglobin (Hb) content, membrane rigidity and hematocrit concentration. Blood and plasma from healthy donors are used as reference. To validate their potential clinical value as a diagnostic tool, the viscosity results are compared to those obtained by the gold-standard method for RBC deformability evaluation, the Laser-Optical Rotational Red Cell Analyzer (LoRRCA). PB Frontiers Research Foundation YR 2021 FD 2021-10-21 LK https://hdl.handle.net/10668/27834 UL https://hdl.handle.net/10668/27834 LA en NO Méndez-Mora L, Cabello-Fusarés M, Ferré-Torres J, Riera-Llobet C, Krishnevskaya E, Trejo-Soto C, et al. Blood Rheological Characterization of β-Thalassemia Trait and Iron Deficiency Anemia Using Front Microrheometry. Front Physiol. 2021 Oct 21;12:761411. DS RISalud RD Apr 12, 2025