Blood vessel damage after gestational diabetes: is a rogue enzyme to blame?
NCT ID NCT05946798
First seen Jul 29, 2026 · Last updated Jul 30, 2026 · Updated 1 time
Summary
This early-phase trial tests whether an enzyme called NADPH oxidase contributes to blood vessel problems in otherwise healthy women who had gestational diabetes. Researchers will measure how small blood vessels in the skin respond to substances that normally widen them, with and without a blocker of NADPH oxidase. The goal is to understand whether this enzyme is a source of harmful oxidative stress that could lead to future heart and blood vessel disease.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- acetylcholine and insulin aspart perfused through the skin with and without an NADPH oxidase inhibitor (apocynin)
- What this could lead to
- If NADPH oxidase is confirmed as a key driver of blood vessel damage after gestational diabetes, it could point toward a new way to prevent long-term heart and blood vessel disease in these women.
- What could go wrong
- This is a very early, small study (40 participants) that measures skin blood vessel responses, not actual heart disease. The findings may not translate to real-world prevention or treatment.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
University of Iowa
Iowa City, Iowa, 52242, United States
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