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Updated: Apr 13, 2026
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Assessment of Maternal Vascular Remodeling During Pregnancy in the Mouse Uterus
Published on: December 5, 2015
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Longitudinal cerebrovascular reactivity during pregnancy: a case study
Craig D Steinback1, Emily C King, Margie H Davenport
1Program for Pregnancy and Postpartum Health, Faculty of Physical Education and Recreation, University of Alberta, Edmonton, AB T6G 2E1, Canada., Physical Activity and Diabetes Lab, Faculty of Physical Education and Recreation, University of Alberta, Edmonton, AB T6G 2H9, Canada.
Summary
Cerebrovascular adaptation during pregnancy shows increased CO2 reactivity, not resting blood flow changes. This is linked to respiratory alkalosis, indicating normal maternal cerebral changes.
Area of Science:
- Neurology
- Physiology
- Obstetrics
Background:
- Understanding normal cerebrovascular adaptation during pregnancy is crucial for maternal and fetal health.
- Previous research has not fully elucidated the dynamic changes in cerebral blood flow regulation throughout gestation.
Observation:
- A case study tracked a 36-year-old normotensive participant from prepregnancy to late gestation.
- Resting cerebral blood flow remained constant, but cerebrovascular reactivity to carbon dioxide (CO2) progressively increased.
Findings:
- The heightened cerebral reactivity correlated with developing chronic respiratory alkalosis.
- Specifically, elevated blood pH and reduced bicarbonate (HCO3-) levels were associated with increased cerebrovascular responsiveness.
Implications:
- These findings provide novel insights into normative maternal cerebrovascular adaptation.
- The study highlights the role of acid-base balance in regulating cerebral blood flow during pregnancy.
- Further research is warranted to explore these mechanisms in larger cohorts.
Keywords:
acid-base regulationalcalosealkalosiscerebral blood flowdébit sanguin cérébralgrossessehypercapniahypercapniepregnantrebreathingrégulation acidobasiqueréinspiration
