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Effect of Retinoic acid on Platelet-derived Growth Factorand Lung Development in Newborn Rats

Effect of Retinoic acid on Platelet-derived Growth Factorand Lung Development in Newborn Rats

作     者:陈红兵 常立文 刘汉楚 容志惠 祝华平 张谦慎 李文斌 

作者机构:Department of Pediatrics Tongji Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430022 China 

出 版 物:《Journal of Huazhong University of Science and Technology(Medical Sciences)》 (华中科技大学学报(医学英德文版))

年 卷 期:2004年第24卷第3期

页      面:226-228页

核心收录:

学科分类:1002[医学-临床医学] 100202[医学-儿科学] 10[医学] 

主  题:platelet-derived growth factor retinoic aicd lung development newborn rats 

摘      要:Summary: The influence of platelet-derived growth factor (PDGF) on lung development in newborn rats and the effect of retinoic acid (RA) on PDGF in lung development were investigated. Newborn Sprague-Dawley (SD) rats were randomly assigned to two groups: control group and RA group. The rats in RA group was intraperitoneally injected with all trans-retinoic acid (500 μg/kg every day) for consecutive 3 days after birth, while those in the control group were not subjected to intervention. Immunohistochemical assay was performed to locate the expression of PDGF. mRNA levels of PDGF were measured by reverse transcription polymerase chain reaction (RT-PCR) at age of 1, 3, 5, 7, 10, 14, 21 days. The method of radial alveolar counts (RAC) was used to measure the amount of the alveoli of the lungs. It was found that with increasing days, levels of PDGF-A and PDGF-B changed to verying degrees. RA could elevate significantly the expression levels of PDGF-A mRNA and protein (P0.05). It is suggested that PDGF might play an important role in lung development. RA can stimulate lung development through increasing the expression levels of PDGF-A mRNA and protein.

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