2026-06-07T23:48:29Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/717282024-09-12T17:04:06Zcom_20.500.14352_14col_20.500.14352_15

Influence of Sexual Dimorphism, Aging, and Differential Cell Capture Efficiency of Blood Separation Systems on the Quality of Platelet-Rich Plasma Trevissón, Bibiana Becerro De Bengoa Vallejo, Ricardo Sevillano Fernández, David González, Natalia Losa Iglesias, Marta Elena López López, Daniel Alou Cervera, Luis Few studies have checked the impact of the hormonal/immunological dimorphism of patients on the cellular composition of platelet-rich plasma products (PRP). Whole blood (WB) from 26 volunteers was concentrated using a device previously characterized. Platelet and white blood cell (WBC) counts in WB and PRP were compared between genders, and after the population was split into pre (≤50 years)- and post (>50 years)-menopausal ages. In WB, platelet–total WBC densities were comparable in men and women. The phagocytic cell composition differed (p ≤ 0.04). After dividing by ages, phagocytic cell discrepancies were linked to women > 50 years (p ≤ 0.05), and differences emerged in lymphocyte counts (lower in >50 years groups, within and between genders, p ≤ 0.05). In PRP, densities were significantly higher, but the PRP/WB ratios varied according to blood cell (lower for phagocytic cells) and between subjects (more favorable at a lower density of a particular blood cell in WB). This “system compensatory efficiency” reduced/reverted PRP differences in the leukocyte composition between genders/age–sex groups in WB. In PRP, neutrophils were higher in younger men than older women (p < 0.05). WB lymphocyte differences between age–sex groups persisted. Age is a more determining factor than sex in the preparation of PRP. Post-menopause, sexual dimorphism strongly influences the composition of leukocytes, also conditioned by the capture efficiency of the system. 2023-06-22T10:49:18Z 2023-06-22T10:49:18Z 2023-06-22T10:49:18Z 2022-03-18 journal article https://hdl.handle.net/20.500.14352/71728 2077-0383 10.3390/jcm11061683 eng https://creativecommons.org/licenses/by/3.0/es/ open access Atribución 3.0 España MPDI