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  • Title: Progesterone receptor expression in the brainstem of the female rat.
    Author: Kastrup Y, Hallbeck M, Amandusson A, Hirata S, Hermanson O, Blomqvist A.
    Journal: Neurosci Lett; 1999 Nov 12; 275(2):85-8. PubMed ID: 10568505.
    Abstract:
    By using in situ hybridization and immunohistochemistry, the presence of neurons expressing progesterone receptor mRNA (PR mRNA) and progesterone receptor-like immunoreactivity (PR-LI) was examined in the brainstem and spinal cord of female rats. Neurons expressing PR mRNA and PR-LI were seen in the ventrolateral medulla, the parvocellular reticular formation and the nucleus of the solitary tract. PR mRNA, but not PR-LI, was seen in the hypoglossal nucleus, the inferior olive, the locus coeruleus and the parabrachial nucleus. No consistent labeling was present in the spinal cord. These findings show that progesterone receptors are expressed in brainstem areas involved in various functions, including autonomic regulation and pain modulation.
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