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Article

MicroRNA expression profile in intrauterine hypoxia‑induced pulmonary hypoplasia in rats

  • Authors:
    • Huiyi Huo
    • Ziqiang Luo
    • Mingjie Wang
    • Xiaohe Yu
    • Zhengchang  Liao
    • Xiaocheng Zhou
    • Shaojie Yue
  • View Affiliations / Copyright

    Affiliations: Department of Neonatology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China, Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410008, P.R. China, Department of Neonatology, The First Hospital of Hunan University of Chinese Medicine, Changsha, Hunan 410007, P.R. China
  • Pages: 747-753
    |
    Published online on: June 20, 2014
       https://doi.org/10.3892/etm.2014.1796
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Abstract

Hypoxia is necessary for fetal development; however, excess hypoxia is detrimental. The mechanisms underlying the effects of hypoxia on lung development remain unclear, although important roles of microRNAs (miRNAs) during lung development have recently been established. However, the effect on lung development at an miRNA expression level, following changes in oxygen tension, have not yet been studied. In the present study, pregnant rats were exposed to a fraction of inspired oxygen of 10.5 or 21% for two days on gestation day 19, following which the body weight, lung wet weight, radial alveolar count (RAC) and mean linear intercept (Lm) of the newborn pups were analyzed on postnatal day 1. To define the role of miRNAs during lung development following intrauterine hypoxia exposure, the miRNA expression pattern was profiled using a miRNA microarray. The newborn rats in the hypoxic group exhibited statistically significant decreases in body weight, lung weight and the RAC, as well as a marked increase in the Lm. A total of 69 miRNAs were identified to have significant changes in expression, including 55 upregulated and 14 downregulated miRNAs. Quantitative polymerase chain reaction was used to validate the microarray results of six selected miRNAs. Therefore, the results indicated that late gestation intrauterine hypoxia exposure may cause lung injury and miRNAs may play important roles in this process.
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Copy and paste a formatted citation
Spandidos Publications style
Huo H, Luo Z, Wang M, Yu X, Liao Z, Zhou X and Yue S: MicroRNA expression profile in intrauterine hypoxia‑induced pulmonary hypoplasia in rats. Exp Ther Med 8: 747-753, 2014.
APA
Huo, H., Luo, Z., Wang, M., Yu, X., Liao, Z., Zhou, X., & Yue, S. (2014). MicroRNA expression profile in intrauterine hypoxia‑induced pulmonary hypoplasia in rats. Experimental and Therapeutic Medicine, 8, 747-753. https://doi.org/10.3892/etm.2014.1796
MLA
Huo, H., Luo, Z., Wang, M., Yu, X., Liao, Z., Zhou, X., Yue, S."MicroRNA expression profile in intrauterine hypoxia‑induced pulmonary hypoplasia in rats". Experimental and Therapeutic Medicine 8.3 (2014): 747-753.
Chicago
Huo, H., Luo, Z., Wang, M., Yu, X., Liao, Z., Zhou, X., Yue, S."MicroRNA expression profile in intrauterine hypoxia‑induced pulmonary hypoplasia in rats". Experimental and Therapeutic Medicine 8, no. 3 (2014): 747-753. https://doi.org/10.3892/etm.2014.1796
Copy and paste a formatted citation
x
Spandidos Publications style
Huo H, Luo Z, Wang M, Yu X, Liao Z, Zhou X and Yue S: MicroRNA expression profile in intrauterine hypoxia‑induced pulmonary hypoplasia in rats. Exp Ther Med 8: 747-753, 2014.
APA
Huo, H., Luo, Z., Wang, M., Yu, X., Liao, Z., Zhou, X., & Yue, S. (2014). MicroRNA expression profile in intrauterine hypoxia‑induced pulmonary hypoplasia in rats. Experimental and Therapeutic Medicine, 8, 747-753. https://doi.org/10.3892/etm.2014.1796
MLA
Huo, H., Luo, Z., Wang, M., Yu, X., Liao, Z., Zhou, X., Yue, S."MicroRNA expression profile in intrauterine hypoxia‑induced pulmonary hypoplasia in rats". Experimental and Therapeutic Medicine 8.3 (2014): 747-753.
Chicago
Huo, H., Luo, Z., Wang, M., Yu, X., Liao, Z., Zhou, X., Yue, S."MicroRNA expression profile in intrauterine hypoxia‑induced pulmonary hypoplasia in rats". Experimental and Therapeutic Medicine 8, no. 3 (2014): 747-753. https://doi.org/10.3892/etm.2014.1796
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