Abstract
Using in situ hybridization, mRNA encoding the growth hormone receptor (GHR) was localized in preimplantation embryos produced by in vitro fertilization (IVF) as well as in 30- to 70-day-old bovine embryos. In IVF embryos the transcript of GHR was demonstrated in the inner cell mass of 8-day-old blastocysts. In 30-day-old embryos, the mesonephros was the first organ to express the mRNA of GHR. In 40-day-old embryos, the transcript was found in the neurones of the spinal ganglions, the splanchnic nerves and the motoneurones of the spinal cord, in the vascular endothelium, and in the developing striated muscle tissue. Colocalization of the protein by immunohistochemistry showed an identical distribution pattern of GHR in 30- to 70-day-old embryos.
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Accepted: 11 December 1997
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Kölle, S., Sinowatz, F., Boie, G. et al. Topography of growth hormone receptor expression in the bovine embryo. Histochemistry 109, 417–419 (1998). https://doi.org/10.1007/s004180050243
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DOI: https://doi.org/10.1007/s004180050243