Protective effects and mechanisms of sodium pyruvate on storage lesions in human red blood cells
10.13303/j.cjbt.issn.1004-549x.2025.06.014
- VernacularTitle:丙酮酸钠对人体红细胞储存损伤的保护作用及机制研究
- Author:
Haoning CHEN
1
;
Qi MIAO
1
;
Qiang GAO
1
;
Xin SUN
1
;
Shunyu MEI
1
;
Li WANG
1
;
Yun LIAN
1
;
Honglin LUO
1
;
Chenjie ZHOU
1
;
Hao LI
1
Author Information
1. Zhenjiang Blood Center, Zhenjiang 212002, China
- Publication Type:Journal Article
- Keywords:
red blood cell storage lesions;
sodium pyruvate;
antioxidation;
energy metabolism;
Na+/K+-ATPase
- From:
Chinese Journal of Blood Transfusion
2025;38(6):833-838
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To investigate the protective effects and underlying mechanisms of sodium pyruvate (SP) on RBC storage lesions using an oxidative damage model. Methods: Six units of leukocyte-depleted suspended RBCs (discarded for non-infectious reasons within three days post-collection) were randomly assigned to four groups: negative control (NS), positive control (PS), experimental group 1 (SP1), and experimental group 2 (SP2). Oxidative stress was induced in the PS group by the addition of hydrogen peroxide (H
O
), while SP1 and SP2 received SP supplementation at different concentrations (25 mM and 50 mM, respectively) in the presence of H
O
. After 1 hour of incubation, RBC morphology was assessed microscopically, and biochemical indicators including glutathione (GSH), malondialdehyde (MDA), methemoglobin (MetHb), adenosine triphosphate (ATP), and Na
/K
-ATPase activity were measured. Results: RBCs in the PS group exhibited pronounced morphological damage, including cell shrinkage and echinocyte formation, whereas both SP-treated groups showed significantly reduced structural injury. SP treatment led to elevated GSH levels and decreased concentrations of MDA and MetHb, suggesting attenuation of oxidative stress. Additionally, SP enhanced intracellular ATP levels and Na
/K
-ATPase activity, thereby contributing to membrane stability. Notably, the SP2 group (50 mM) demonstrated superior protective effects compared to SP1 (25 mM). Conclusion: Sodium pyruvate effectively attenuates oxidative storage lesions in RBCs, primarily through its antioxidant properties, energy metabolism supporting ability, and celluar membrane stabilizing function. These findings suggest SP as a promising additive for enhancing the quality and safety of stored RBCs.
