Beta3-adrenergic Receptors and Cardiovascular Function in Aging Women

Purpose

To determine if vascular beta3 adrenergic receptors are present and functional in aging women and can be targeted to attenuate sympathetic vasoconstriction and enhance vascular function in aging women.

Conditions

  • Women
  • Aging
  • Menopause

Eligibility

Eligible Ages
Between 18 Years and 70 Years
Eligible Sex
Female
Accepts Healthy Volunteers
Yes

Inclusion Criteria

  • Healthy women, - Assigned female at birth, - 18-70 years of age, - Body mass index <18 or ≥30 kg/m2,

Exclusion Criteria

  • Assigned male at birth, - Pregnancy, - Breastfeeding, - History of hormone replacement therapy, chemical menopause, or oophor-ectomy - Polycystic ovarian syndrome or Primary ovarian insufficiency, - Current smoking/Nicotine use, - Blood pressure ≥140/90 mmHg, - Increased risk of bleeding, pro-coagulant disorders, clotting disorders, anticoagulation therapy, - Nerve/neurologic disease, - Cardiovascular, hepatic, renal, respiratory disease, - Hypersensitivity to nitroglycerin, - Diabetes, - Communication barriers,

Study Design

Phase
Early Phase 1
Study Type
Interventional
Allocation
Randomized
Intervention Model
Crossover Assignment
Primary Purpose
Basic Science
Masking
Single (Participant)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
Cold pressor test
Participants will be exposed to the cold pressor test (ice water on the foot).
  • Drug: Placebo
    Participants will receive a placebo in pill form.
  • Drug: Gemtesa
    Participants will receive oral gemtesa (75 mg).
Experimental
Flow Mediated Dilation
Participants will be exposed to the high-resolution ultrasound following inflation of a cuff around the forearm.
  • Drug: Placebo
    Participants will receive a placebo in pill form.
  • Drug: Gemtesa
    Participants will receive oral gemtesa (75 mg).

Recruiting Locations

University of Missouri
Columbia, Missouri 65211
Contact:
Jacqueline Limberg Associate Professor
1-573-882-2544
limberglab@missouri.edu

More Details

Status
Recruiting
Sponsor
University of Missouri-Columbia

Study Contact

Jacqueline Limberg Associate Professor
1-573-882-2544
limberglab@missouri.edu