Suckling-Induced Attenuation of Plasma Cortisol Concentrations in Postpartum Lactating Women
Abstract
The effect of suckling on serum cortisol concentrations was assessed in postpartum lactating women studied during serial breast feeding sessions 1-24 weeks postpartum. The mean +/- SD serum cortisol concentration at 15 min after the start of nursing, 9.8 +/- 3.89 micrograms/dl, was significantly lower, P = 0.001, than prior to the start of nursing, 13.2 +/- 5.92 micrograms/dl. The decline in the serum cortisol concentrations in the breast feeding women was not due entirely to the normal metabolism of the hormone or the normal circadian variation in cortisol secretion. These studies complement and expand upon a recent report [3] of a significant decrease in plasma adrenocorticotrophic hormone in breast feeding women studied one week postpartum. The neuroendocrine mechanisms responsible for this effect in women have yet to be defined.
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Plasma CORT decreases in human mothers, potentially through the suckling-induced OT that can inhibit ACTH secretion.
“On the other hand, plasma CORT decreases in human mothers (54), potentially through the suckling-induced OT (55) that can inhibit ACTH secretion (56).”
From Neuroendocrinology of Parental Response to Baby‐Cry (2011) · cites this paper as [54]
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References 14 · Cited by 142
- Authors
- Amico, J. A., Johnston, J. M., & Vagnucci, A. H.
- Affiliations
- University of Pittsburgh (US)
- Venue
- Endocrine Research
- Publisher
- Informa UK Limited
- Published
- 1994-01
- Volume
- 20
- Issue
- 1
- Pages
- 79-87
- ISSN
- 0743-5800 (ISSN-L)
- 1532-4206
- OpenAlex
- W1963796162
- Cited by
- 142
- References
- 14
- Citations by year
- 2025: 1 · 2024: 4 · 2023: 5 · 2022: 4 · 2021: 7 · 2020: 6 · 2019: 4 · 2018: 5 · 2017: 2 · 2016: 2 · 2015: 7 · 2014: 2 · 2013: 8 · 2012: 2
- FWCI
- 1.62
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Endocrine Research (publishedVersion)
- PubMed (publishedVersion)
- Funders
- U.S. Department of Veterans Affairs
- National Center for Research Resources (RR-0056, M01RR000056)
- Topics
- Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
- Health Sciences › Medicine › Epidemiology › Breastfeeding Practices and Influences
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Adrenal Hormones and Disorders
- Keywords
- suckling, breastfeeding, plasma cortisol, postpartum lactation, ACTH, neuroendocrine regulation
- MeSH terms
- Adrenocorticotropic Hormone, Adult, Breast Feeding, Circadian Rhythm, Female, Humans, Hydrocortisone, Lactation, Oxytocin, Periodicity, Postpartum Period
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