Birth elicits a conserved neuroendocrine response with implications for perinatal osmoregulation and neuronal cell death
Abstract Long-standing clinical findings report a dramatic surge of vasopressin in umbilical cord blood of the human neonate, but the neural underpinnings and function(s) of this phenomenon remain obscure. We studied neural activation in perinatal mice and rats, and found that birth triggers activat...
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2021
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oai:doaj.org-article:3ffec8c8a6a547f1966ab65d7e48170b2021-12-02T13:57:58ZBirth elicits a conserved neuroendocrine response with implications for perinatal osmoregulation and neuronal cell death10.1038/s41598-021-81511-12045-2322https://doaj.org/article/3ffec8c8a6a547f1966ab65d7e48170b2021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-81511-1https://doaj.org/toc/2045-2322Abstract Long-standing clinical findings report a dramatic surge of vasopressin in umbilical cord blood of the human neonate, but the neural underpinnings and function(s) of this phenomenon remain obscure. We studied neural activation in perinatal mice and rats, and found that birth triggers activation of the suprachiasmatic, supraoptic, and paraventricular nuclei of the hypothalamus. This was seen whether mice were born vaginally or via Cesarean section (C-section), and when birth timing was experimentally manipulated. Neuronal phenotyping showed that the activated neurons were predominantly vasopressinergic, and vasopressin mRNA increased fivefold in the hypothalamus during the 2–3 days before birth. Copeptin, a surrogate marker of vasopressin, was elevated 30-to 50-fold in plasma of perinatal mice, with higher levels after a vaginal than a C-section birth. We also found an acute decrease in plasma osmolality after a vaginal, but not C-section birth, suggesting that the difference in vasopressin release between birth modes is functionally meaningful. When vasopressin was administered centrally to newborns, we found an ~ 50% reduction in neuronal cell death in specific brain areas. Collectively, our results identify a conserved neuroendocrine response to birth that is sensitive to birth mode, and influences peripheral physiology and neurodevelopment.Yarely C. HoffizAlexandra Castillo-RuizMegan A. L. HallTaylor A. HiteJennifer M. GrayCarla D. CisternasLaura R. CortesAndrew J. JacobsNancy G. ForgerNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021) |
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Medicine R Science Q Yarely C. Hoffiz Alexandra Castillo-Ruiz Megan A. L. Hall Taylor A. Hite Jennifer M. Gray Carla D. Cisternas Laura R. Cortes Andrew J. Jacobs Nancy G. Forger Birth elicits a conserved neuroendocrine response with implications for perinatal osmoregulation and neuronal cell death |
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Abstract Long-standing clinical findings report a dramatic surge of vasopressin in umbilical cord blood of the human neonate, but the neural underpinnings and function(s) of this phenomenon remain obscure. We studied neural activation in perinatal mice and rats, and found that birth triggers activation of the suprachiasmatic, supraoptic, and paraventricular nuclei of the hypothalamus. This was seen whether mice were born vaginally or via Cesarean section (C-section), and when birth timing was experimentally manipulated. Neuronal phenotyping showed that the activated neurons were predominantly vasopressinergic, and vasopressin mRNA increased fivefold in the hypothalamus during the 2–3 days before birth. Copeptin, a surrogate marker of vasopressin, was elevated 30-to 50-fold in plasma of perinatal mice, with higher levels after a vaginal than a C-section birth. We also found an acute decrease in plasma osmolality after a vaginal, but not C-section birth, suggesting that the difference in vasopressin release between birth modes is functionally meaningful. When vasopressin was administered centrally to newborns, we found an ~ 50% reduction in neuronal cell death in specific brain areas. Collectively, our results identify a conserved neuroendocrine response to birth that is sensitive to birth mode, and influences peripheral physiology and neurodevelopment. |
format |
article |
author |
Yarely C. Hoffiz Alexandra Castillo-Ruiz Megan A. L. Hall Taylor A. Hite Jennifer M. Gray Carla D. Cisternas Laura R. Cortes Andrew J. Jacobs Nancy G. Forger |
author_facet |
Yarely C. Hoffiz Alexandra Castillo-Ruiz Megan A. L. Hall Taylor A. Hite Jennifer M. Gray Carla D. Cisternas Laura R. Cortes Andrew J. Jacobs Nancy G. Forger |
author_sort |
Yarely C. Hoffiz |
title |
Birth elicits a conserved neuroendocrine response with implications for perinatal osmoregulation and neuronal cell death |
title_short |
Birth elicits a conserved neuroendocrine response with implications for perinatal osmoregulation and neuronal cell death |
title_full |
Birth elicits a conserved neuroendocrine response with implications for perinatal osmoregulation and neuronal cell death |
title_fullStr |
Birth elicits a conserved neuroendocrine response with implications for perinatal osmoregulation and neuronal cell death |
title_full_unstemmed |
Birth elicits a conserved neuroendocrine response with implications for perinatal osmoregulation and neuronal cell death |
title_sort |
birth elicits a conserved neuroendocrine response with implications for perinatal osmoregulation and neuronal cell death |
publisher |
Nature Portfolio |
publishDate |
2021 |
url |
https://doaj.org/article/3ffec8c8a6a547f1966ab65d7e48170b |
work_keys_str_mv |
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