A University of Iowa researcher has secured a nearly $272,000 grant to investigate blood flow in the brains of women with a history of gestational diabetes. Led by Adam Corkery, the three-year study aims to uncover why these individuals face significantly elevated risks of stroke and dementia later in life.
Women diagnosed with diabetes during pregnancy face a long-term shadow that extends far beyond postpartum recovery. Clinical data shows these individuals carry a 40% increased risk of blood-brain disorders like stroke and a striking 67% increased risk of dementia compared to women without the condition. Yet treating and monitoring this population presents a persistent medical puzzle.
Unlike typical diabetes presentations, patients with a history of gestational diabetes usually do not display low insulin sensitivity or high blood glucose levels either before or after pregnancy. These two metrics serve as primary clinical indicators of the disease, leaving healthcare professionals with few traditional warning signs to guide preventative care.
Inside the University of Iowa Microvascular Physiology Lab
To tackle this diagnostic gap, Adam Corkery, a postdoctoral fellow in the Microvascular Physiology Lab at the University of Iowa, has stepped up as principal investigator and grant recipient. The funding comes from an award totaling nearly $272,000 designed to span a three-year investigative timeline.
Prior work within the Microvascular Physiology Lab established a foundational clue. Researchers previously discovered that gestational diabetes causes functional impairments in the skin’s blood vessels among otherwise healthy women. Blood vessel dysfunction occurs when vessels fail to regulate blood flow properly and maintain optimal conditions for the organs they supply, ultimately risking tissue damage.
Corkery’s new project directly tests whether that same microvascular breakdown occurs in the brain. Because cerebral blood vessel dysfunction acts as a major contributor to dementia, including Alzheimer’s disease, identifying similar impairments in the brain could explain why gestational diabetes elevates long-term neurological risk.
Methods for Monitoring Brain Blood Flow
The investigation relies on a comparative clinical design. Corkery’s team will compare the brain blood flow of approximately 23 women with a history of gestational diabetes and 23 with no history of the disease.
To measure vascular reactivity, researchers will use carbon dioxide to stimulate blood flow increases. They will then monitor how blood moves from the neck into the brain and within the cerebral tissue itself using ultrasound technology. A greater increase in blood flow following elevated carbon dioxide exposure signifies healthier, more responsive blood vessel function.
“These women are years postpartum and clinically normal. However, we know that a fair number statistically will develop some form of vascular disease or dementia. We want to intervene during this period when they’re still clinically normal to prevent the development of disease.”
Adam Corkery, postdoctoral fellow in the Microvascular Physiology Lab at the University of Iowa
Broader Horizons in Maternal Brain Research
The University of Iowa study arrives as the scientific community pays closer attention to the complex physiological shifts that accompany pregnancy and the postpartum period. Investigators are utilizing advanced imaging frameworks to track neural and vascular adaptations.
Projects such as The Maternal Brain Project emphasize the necessity of mapping normative brain changes during gestation and the transition to parenthood. Supported by the Ann S. Bowers Women’s Brain Health Initiative and ReproGrants, longitudinal studies utilize precision imaging, MRI scans, and blood draws to examine everything from gray matter volume to immune adaptations.
Researchers note that establishing baseline, normative changes across pregnancy is essential for uncovering the neural signatures of conditions like pre-eclampsia, postpartum depression, and gestational diabetes. By connecting vascular physiology with multi-omics approaches, the scientific community moves closer to understanding how systemic pregnancy-related adaptations influence neurological health.
Worth a look
