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JOURNAL OF CLINICAL TRANSFUSION AND LABORATORY MEDICINE ›› 2026, Vol. 28 ›› Issue (1): 22-28.DOI: 10.3969/j.issn.1671-2587.2026.01.004

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Effects of Phenylhydrazine-induced Chronic Hemolytic Anemia on Peripheral Blood and Bone Marrow Stem Cells

LI Xinlei, AN Ning, WANG Yafen, WU Xiaoshuang, CHEN Jie, HE Yang, CHEN Yaozhen, HU Xingbin   

  1. Northwest University; Department of Blood Transfusion, Xijing Hospital, Air Force Military Medical University; Department of Blood Transfusion, Qujiang New District Hospital, Xi'an 710000
  • Received:2025-05-15 Published:2026-02-13

Abstract: Objective To investigate the effects of multi-level regulatory effects within the hematopoietic system in a murine model of phenylhydrazine(PHZ)-induced chronic hemolytic anemia. Methods A chronic hemolytic anemia model was established in C57BL/6 mice using PHZ. We analyzed multiple hematopoietic parameters, including complete blood count, plasma-free hemoglobin, and flow cytometric quantification of terminal erythroid differentiation stages, hematopoietic stem cells (HSCs) , and bone marrow mesenchymal stem cells (BMSCs). Results Successful model establishment was confirmed by complete blood count and elevated free hemoglobin. Flow cytometry revealed significant increases in the proportions of proerythroblasts [(2.33±0.29)%, P<0.01] and basophilic erythroblasts [(1.04±0.23)%, P<0.05]. Additionally, the proportions of HSCs [(0.16±0.03)%, P<0.000 1] and BMSCs were significantly elevated in the bone marrow. Conclusion PHZ-induced chronic hemolytic anemia triggers multi-level regulation within the hematopoietic system, which helps maintain erythrocyte homeostasis and provides a theoretical basis for understanding the pathogenesis of hemolytic anemia.

Key words: Phenylhydrazine, Chronic hemolytic anemia, Red blood cell, Bone marrow mesenchymal stem cell, Bone marrow hematopoietic system

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