Changes in cerebrospinal fluid neurochemistry during pregnancy
Abstract
Background Little is known about changes in brain function that may occur during pregnancy. Studies in rodents and sheep suggest that several brain neurotransmitter and neurohormonal systems known to modulate anxiety may be altered during pregnancy.Methods Cerebrospinal fluid (CSF) and plasma samples were obtained from 21 women (during weeks 38-39 of pregnancy) who were undergoing elective cesarean section and from 22 healthy nonpregnant women.Results The CSF levels of g-aminobutyric acid (GABA) and 3-methoxy-4-hydroxyphenylglycolwere reduced in pregnant women. There were no changes in CSF glutamate, 5-hydroxyindoleactic acid, and homovanillic acid. There was a large increase in CSF prolactin in pregnant women and also a trend toward an elevation in CSF oxytocin. Levels of prolactin, but not oxytocin, in CSF and plasma were correlated in pregnant women.Conclusions These results suggest that pregnancy alters regulation of brain GABA, norepinephrine, and prolactin, which may play a role in changes in vulnerability to anxiety and depression during pregnancy and postpartum. Prolactin circulating in the bloodstream seems to be the major source of CSF prolactin during pregnancy.
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In pregnant women, there is no correlation between plasma and CSF OT levels.
“a high quality study in pregnant women showing no correlation between plasma and CSF OT levels (Altemus et al., 2004)”
From Approaching the biology of human parental attachment: Brain imaging, oxytocin and coordinated assessments of mothers and fathers (2014) · cites this paper as Altemus et al., 2004
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- Authors
- Altemus, M., Fong, J., Yang, R., Damast, S., Luine, V., & Ferguson, D.
- Affiliations
- Cornell University (US)
- City University of New York (US)
- Corresponding author
- Altemus, Margaret
- Venue
- Biological Psychiatry
- Publisher
- Elsevier BV
- Published
- 2004-09
- Volume
- 56
- Issue
- 6
- Pages
- 386-392
- ISSN
- 0006-3223 (ISSN-L)
- OpenAlex
- W1968793849
- Cited by
- 83
- References
- 97
- Citations by year
- 2025: 2 · 2023: 3 · 2022: 3 · 2021: 6 · 2020: 2 · 2019: 2 · 2018: 4 · 2017: 6 · 2016: 6 · 2015: 5 · 2014: 8 · 2013: 4 · 2012: 2
- FWCI
- 4.41
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Biological Psychiatry (publishedVersion)
- PubMed (publishedVersion)
- Funders
- U.S. Public Health Service (M01770047)
- National Institute on Drug Abuse (R24DA012136)
- National Institute of General Medical Sciences (R25GM060665)
- National Center for Research Resources (G12RR003037)
- Topics
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Maternal Mental Health During Pregnancy and Postpartum
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Pregnancy-related medical research
- Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
- Keywords
- pregnancy, GABA, MHPG, prolactin, oxytocin, glutamate, homovanillic acid, norepinephrine, anxiety, depression, postpartum period
- MeSH terms
- Adult, Cerebrospinal Fluid, Female, gamma-Aminobutyric Acid, Humans, Methoxyhydroxyphenylglycol, Neurochemistry, Oxytocin, Pregnancy, Prolactin, Radioimmunoassay, Spinal Puncture, Neurotransmitter Agents, Pregnant People
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