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Transduction of Sympathetic Neural Activity in Human Obesity Without Hypertension

NCT06626113 · Status: RECRUITING · Type: OBSERVATIONAL · Enrollment: 60

Last updated 2024-10-03

No results posted yet for this study

Summary

In addition to chronically elevated MSNA, there is a growing recognition that hypertension in states of insulin resistance and obesity may also be attributed to an increased vascular sensitivity to MSNA (1, 2, 13, 36-38). To study this phenomenon, we quantify vascular sensitivity to MSNA using an innovative, moment-to-moment assessment of the blood pressure response following individual bursts of muscle sympathetic nerve activity (MSNA), (10, 11, 34, 37). This approach is termed 'sympathetic-vascular transduction (SVT).' We will examine the hypothesis that SVT is exaggerated in obesity and insulin resistance and is attenuated by suppression of oxidative stress. Oxidative stress is the overabundance of reactive oxygen species and is another hallmark of hypertension, obesity, and insulin resistance. Oxidative stress can be safely reduced via intravenous infusion of ascorbic acid (Vit C) (4, 28). Therefore, we will use a randomized, double-blinded, placebo-controlled approach to test the hypothesis that elevated SVT will be attenuated by suppression of oxidative stress via ascorbic acid I.V. infusion compared with saline I.V. infusion (placebo) in obese adults with insulin resistance. Our study will identify a unique mechanism that can be targeted to reduce the excessively high prevalence of hypertension and risk for CVD in obesity and insulin resistance.

Conditions

Interventions

DRUG

ascorbic acid

ascorbic acid

Sponsors & Collaborators

  • University of Kansas Medical Center

    lead OTHER

Eligibility

Min Age
18 Years
Max Age
79 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2022-08-01
Primary Completion
2026-09-01
Completion
2027-09-01
FDA Drug
Yes

Countries

  • United States

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06626113 on ClinicalTrials.gov