The effects of selective beta-adrenergic blockade on bone marrow dysfunction following severe trauma and chronic stress.

The effects of selective beta-adrenergic blockade on bone marrow dysfunction following severe trauma and chronic stress.
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选择性β-肾上腺素能阻断对严重创伤和慢性应激后骨髓功能障碍的影响。

DOI:
10.1016/j.amjsurg.2020.06.058
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发表时间:
2020-11
影响因子:
3
通讯作者:
Mohr AM
Mohr AM
中科院分区:
医学3区
文献类型:
--
作者:
Miller ES;Apple CG;Kannan KB;Funk ZM;Efron PA;Mohr AM

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普萘洛尔已被证明可以改善创伤后红系祖细胞生长和贫血,本研究试图通过评估选择性β受体阻滞剂的作用来研究其机制。雄性Sprague-Dawley大鼠接受肺挫伤、失血性休克和慢性应激(LCHS/CS)±每日选择性β-1、β-2或β-3阻滞(B1 B、B2 B、B3 B)。评估骨髓细胞构成和红系祖细胞集落生长、血红蛋白、血浆粒细胞集落刺激因子(G-CSF)、造血祖细胞动员和每日体重。选择性β-2和β-3阻断剂改善了骨髓细胞构成、红系祖细胞集落生长和血红蛋白水平,同时降低了LCHS/CS后的血浆G-CSF、祖细胞动员和体重减轻。使用选择性β 2和β 3肾上腺素能阻滞剂减弱神经内分泌应激反应可能是改善创伤后骨髓红细胞功能的一种替代方法。
Propranolol has been shown to improve erythroid progenitor cell growth and anemia following trauma and this study sought to investigate the mechanisms involved by evaluating the effects of selective beta blockade. Male Sprague-Dawley rats were subjected to lung contusion, hemorrhagic shock and chronic stress (LCHS/CS) ± daily selective beta-1, beta-2, or beta-3 blockade (B1B, B2B, B3B). Bone marrow cellularity and growth of erythroid progenitor colonies, hemoglobin, plasma granulocyte colony-stimulating factor (G-CSF), hematopoietic progenitor cell mobilization, and daily weight were assessed. Selective beta-2 and beta-3 blockade improved bone marrow cellularity, erythroid progenitor colony growth and hemoglobin levels, while decreasing plasma G-CSF, progenitor cell mobilization and weight loss following LCHS/CS. Attenuating the neuroendocrine stress response with the use of selective beta-2 and 3 adrenergic blockade may be an alternative to improve bone marrow erythroid function following trauma.
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