中国组织工程研究 ›› 2020, Vol. 24 ›› Issue (1): 112-117.doi: 10.3969/j.issn.2095-4344.2008

• 干细胞基础实验 basic experiments of stem cells • 上一篇    下一篇

高原鼠兔与大鼠低氧后外周血及骨髓红系细胞变化特点

马  婕1,冀林华1,李占全1,刘慧慧1,马  兰2,葸  瑞3,崔  森1   

  1. 1青海大学附属医院血液科,青海省西宁市  810001;2青海大学医学院高原医学中心,青海省西宁市  810001;3解放军联勤保障部队940医院血液科,甘肃省兰州市  730050
  • 收稿日期:2019-05-22 修回日期:2019-05-28 接受日期:2019-07-31 出版日期:2020-01-08 发布日期:2019-12-12
  • 通讯作者: 崔森,男,主任医师,青海大学附属医院血液科,青海省西宁市 810001 葸瑞,女,副主任医师,解放军联勤保障部队940医院血液科,甘肃省兰州市 730050
  • 作者简介:马婕,女,1980年生,回族,2019年青海大学毕业,博士。
  • 基金资助:
    国家人力资源与社会保障部2017年高层次留学回国人才资助项目(2017-200);青海省高端创新人才“千人计划”(2017-5);2018年青海省卫生计生委一般指导性课题(2018-wjzdx-108);国家自然科学基金(31560292)

Changes of peripheral and bone marrow erythrocytes in plateau pikas and rats after hypoxia exposure

Ma Jie1, Ji Linhua1, Li Zhanquan1, Liu Huihui1, Ma Lan2, Xi Rui3, Cui Sen1   

  1. 1Department of Hematology, Qinghai University Affiliated Hospital, Xining 810001, Qinghai Province, China; 2Research Center for High Altitude Medicine, Qinghai University, Xining 810001, Qinghai Province, China; 3Department of Hematology, the 940th Hospital of PLA Joint Logistics Support Force, Lanzhou 730050, Gansu Province, China
  • Received:2019-05-22 Revised:2019-05-28 Accepted:2019-07-31 Online:2020-01-08 Published:2019-12-12
  • Contact: Cui Sen, Chief physician, Department of Hematology, Qinghai University Affiliated Hospital, Xining 810001, Qinghai Province, China Xi Rui, Associate chief physician, Department of Hematology, the 940th Hospital of PLA Joint Logistics Support Force, Lanzhou 730050, Gansu Province, China
  • About author:Ma Jie, MD, Department of Hematology, Qinghai University Affiliated Hospital, Xining 810001, Qinghai Province, China
  • Supported by:
    the High-Level Returned Overseas Talent Project of Ministry of Human Resources and Social Security of China in 2017, No. 2017-200; the High-Level Innovative Talent “Thousand Talents Plan” of Qinghai Province, No. 2017-5; the General Guidance Project of Health and Family Planning Commission of Qinghai Province in 2018, No. 2018-wjzdx-108; the National Natural Science Foundation of China, No. 31560292

摘要:

文题释义:

红细胞系:循环中大量的红细胞构成了一个运输氧的器官,红系祖细胞和成熟红细胞共同组成了此器官,称为红细胞系。

红细胞系来源:红细胞系细胞来自未分化的多能干细胞,随着定向分化,红系祖细胞经历数个复制阶段,逐渐成熟并功能更加特化。在成人阶段,除非在低氧等病理情况下或收到环境损害干扰,循环中的红细胞总数保持稳定状态。

背景:生活于高原鼠兔的血液系统中外周血红细胞及骨髓有核红细胞数目及形态的变化,对其低氧适应有重要意义。

目的:通过对比高原鼠兔与大鼠在低氧前后外周血及骨髓红系细胞的变化,初步探讨高原鼠兔红系造血系统低氧适应的形态学变化。

方法:健康野生高原鼠兔及清洁级SD大鼠各12只,分别随机分为实验组和对照组,每组6只,实验组动物饲养在模拟海拔5 000 m高原低压低氧舱内,连续低压低氧干预28 d,对照组动物在海拔2 260 m的实验室内饲养。

结果与结论:①对照组高原鼠兔较对照组大鼠红细胞直径小而计数多,低氧暴露28 d后,两组实验动物红细胞数、血红蛋白浓度及红细胞压积均升高(P < 0.05),但高原鼠兔增高幅度明显低于大鼠,且高原鼠兔平均红细胞体积、平均红细胞血红蛋白含量及平均红细胞血红蛋白浓度无明显变化;②骨髓涂片结果显示,低氧暴露后高原鼠兔中、晚幼红细胞比例无明显变化,但大鼠中、晚幼红细胞比例显著增加(P < 0.05);③胸骨苏木精-伊红染色结果显示,低氧暴露后高原鼠兔幼红细胞岛无明显变化,但大鼠幼红细胞岛明显增生;④结果显示,高原鼠兔在低氧暴露前后外周血及骨髓红系变化幅度明显低于SD大鼠,考虑高原鼠兔长期生活在高原低氧环境下,可能与其低氧适应机制有关。

ORCID: 0000-0001-5253-8732(马婕)

中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程

关键词: 高原鼠兔, 大鼠, 造血系统, 骨髓, 有核红细胞, 幼红细胞岛, 外周血, 红细胞, 低氧暴露, 低氧适应

Abstract:

BACKGROUND: Changes of red blood cell in peripheral blood and bone marrow erythropoietic system in plateau pikas are of great significance for hypoxic adaptation.

OBJECTIVE: To explore the hypoxic adaptation of erythropoietic system in plateau pikas by comparing the morphological changes of peripheral blood and bone marrow between plateau pikas and rats exposed to hypoxia.

METHODS: There were 12 healthy wild plateau pikas and 12 clean Sprague-Dawley rats and were randomly divided into experimental and control groups, 6 in each group. The experimental group animals were fed in a simulated 5 000 m altitude hypobaric hypoxia chamber for 28 consecutive days, and the control group animals were fed in the laboratory at 2 260 m altitude.

RESULTS AND CONCLUSION: (1) The diameter of the erythrocytes was smaller and red blood cell count was higher in plateau pikas than those in the rats of control group. After 28 days of hypoxia, red blood cell count, hemoglobin and hematocrit were increased in both experimental groups (P < 0.001), but the increased rate of plateau pikas were less than that of the rats. The mean corpuscular volume, mean corpuscular hemoglobin and mean corpuscular hemoglobin concentration showed no significant changes in plateau pikas. (2) Results of bone marrow smear showed that the proportion of polychromatic and orthochromatic erythroblasts had no significant changes in plateau pikas after hypoxia, but increased significantly in the rats (P < 0.05). (3) Hematoxylin-eosin staining results of the sternum indicated that the immature erythroblasts islands did not change significantly in plateau pikas, but increased significantly in rats. (4) So the erythroid changes in peripheral blood and bone marrow of plateau pikas before and after hypoxia are significantly lower than those of the Sprague-Dawley rats, and they may be related to the hypoxia adaptation mechanism.

Key words: plateau pika, rats, hematopoietic system, bone marrow, erythroblasts, erythrocyte islands, peripheral blood, red blood cell, hypoxia exposure, hypoxia adaptation

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