Localization and quantitative analysis of interleukin-6 in human placenta |
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Authors: | Zhang Rongqing Li Yaping Huang Weiquan Di Xinyu |
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Affiliation: | (1) Department of Biology, Tsinghua University, 100084 Beijing, China;(2) Department of Histology and Embryology, the Fourth Military Medical University, 710032 Xi’an, China |
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Abstract: | The localization of IL-6 at light microscopic levels and its quantitative analysis in human placentas were studied by using immunohistochemistry. Both syncytiotrophoblast and cytotrophoblast in placental villi, white blood cells in villose capillary cavity stromal cells and capillary endothelium present IL-6 immunoreactivity in cytoplasm. Using a quantitative immunohitochemical method, the amounts of IL-6 in placenta were low at the 6th week of gestation, increased saliently and peaked at the 7th, then reduced gradually during the rest of the gestation period and maintained the same level as that in the 6th week of gestation. This changing trend was paralleled with that of GnRH in our previous studies. These results revealed that IL-6 could be produced by the human placenta and may take part in the regulation of placental hormone releasing. |
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Keywords: | interleukin-6 localization quantitative determinetion human placenta |
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