Metabolic Syndrome
Conditions
Keywords
metabolic syndrome, MetS, premenopausal women, vascular risk, atherosclerosis detection
Brief summary
The purpose of this study is to compare the vascular permeability of blood vessel walls (of the carotid artery) in pre-menopausal women who have metabolic syndrome (syndrome of having at least 3/5 following features- increased abdominal fat, low good cholesterol (HDL-C), elevated fasting blood fats (triglycerides), elevated blood pressure, an elevated fasting glucose) versus those women who are normal weight and with normal cholesterol, blood fats, blood pressure, and blood sugar. We are using a novel technology to measure vascular permeability known as dynamic contrast enhancement magnetic resonance imaging (DCE-MRI). The primary variable is ktrans ratio which is a mathematically derived quantity obtained from DCE-MRI. We are trying to identify novel markers of early atherosclerosis in young women.
Detailed description
This study involves a phone screen & 2 study visits: * Screening visit, which includes a quick finger stick cholesterol, glucose, triglycerides test (cholestech) to determine qualification, waist measurement, weight. Results are provided regardless of qualification. If the volunteer qualifies, a full blood draw (approximately 45cc or 3 Tablespoons) will occur. A snack is provided once blood is drawn. Additional study visit procedures include a medical history questionnaire including menstrual history, height & weight measurement, vital signs, and waist & hip measurements. This study lasts up to 90 minutes. * MRI visit (to occur within a week of screening visit) occurs once serum pregnancy & creatinine results are received & only if approved to continue by P.I. (e.g. negative serum pregnancy and eGFR\>60). An IV catheter is placed in the antecubital vein to administer an injection of (gadolinium) contrast medium. A coil is placed on each side of the subject's neck while laying flat on a bench, with her upper body inside the MRI scanner. The entire MRI procedure takes approximately 60 minutes.
Interventions
None listed
Sponsors
University of Washington
Study design
Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
FEMALE
Age
35 Years to 50 Years
Healthy volunteers
Yes
Inclusion criteria
* Pre-menopausal women (age 35-50) * still having menstrual periods
Exclusion criteria
* History of diabetes mellitus * History of cardiovascular disease (peripheral vascular disease, coronary artery disease, cerebrovascular disease) * Serum creatinine \>1.2 mg/dL (eGFR \<60 ml/min.) * Active rheumatologic disease * Use of hormonal contraception\* * Pregnant or planning a pregnancy within the next 3 months * Fasting triglycerides ≥ 500 mg/dL * Fasting LDL-C ≥ 190 mg/dL * Currently taking lipid lowering medications\* * Currently taking vaso-active (blood pressure) medications\* * Hypertension: SBP ≥ 140 and or DBP ≥90 mm Hg * Chronic use of aspirin (prn use is allowed) * Chronic use of non-steroidal anti-inflammatory medications (prn use is allowed) * Tobacco use within 3 months of starting study * Participation in another clinical trial within the last 30 days * MRI specific
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| ktrans of the carotid artery wall | baseline | Ktrans is a transfer constant that is a measure of vascular permeability. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| carotid artery intima-media thickness as measured by MRI | baseline | Carotid intima-media thickness is a measure of the actual thickness of the intima and media layers of the carotid artery wall. |
Countries
United States
Outcome results
None listed