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Search Results within category "Heart & Vascular"

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Suggestions within category "Heart & Vascular"


13 Study Matches

Cardiovascular Effects of Angiotensin 1-7 in Obesity Hypertension

The purpose of this study is to see if the hormone angiotensin-(1-7) improves the function of blood vessels and lowers blood pressure in obese subjects with hypertension.
Aimee Cauffman at acauffman@pennstatehealth.psu.edu or 717-531-1617
All
18 year(s) or older
This study is NOT accepting healthy volunteers
NCT03604289
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Inclusion Criteria:
Age 18-60 years
Obesity (defined as body mass index between 30-40 kg/m2)
Hypertension (defined as seated blood pressure greater than 130/80 mmHg)
Able and willing to give informed consent
Exclusion Criteria:
Pregnant or breastfeeding women
Current smokers
Type I or type II diabetes
History of major cardiovascular disease, immune or liver diseases, impaired renal or liver function
Age less than 18 years or greater than 60 years
Heart & Vascular
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Location
Hershey, PA

Pilot Study to Assess Medication Adherence, Health Literacy, and Technological Literacy among African Americans and Latinos with Hypertension

This pilot study aims explore the health literacy and medication adherence found among African Americans and Latinos with hypertension receiving care at Hamilton Health Center in Harrisburg PA. We also aim to determine the feasibility of the iPad or smartphone as a tool for accessing health related information among African American and Latino patients with hypertension receiving care at clinics at Hamilton Health Center in Harrisburg PA. The expected outcomes of this project are to obtain a better understand of the literacy levels and adherence behaviors of African Americans and Latinos in Harrisburg, Pennsylvania. The findings from this study will provide valuable insights into the health management behaviors of this community and determine if there is a need to develop a mobile health application for the management of hypertension.
Yendelela Cuffee at ycuffee@phs.psu.edu or 717-531-2044
All
18 year(s) or older
This study is also accepting healthy volunteers
N/A
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Inclusion Criteria:
Diagnosed with high blood pressure
Prescribed medication for high blood pressure
African American/Black (Hispanic or Non-Hispanic) or White (Hispanic)
21 years and older
Able to speak and read English
Exclusion Criteria:
Unable to provide consent to participate in the study
Heart & Vascular, Diabetes & Hormones
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Location
Hershey, PA

A Pivotal, Multicenter, Blinded, Sham Procedure-Controlled Trial of Renal Denervation by the Peregrine System Kit in Subjects with Hypertension

The purpose of this study is to evaluate the safety and effectiveness of renal denervation while still on blood pressure medications. Renal denervation is the destruction of nerve fibers that run along the kidney blood vessels. This causes an interruption of nerve signals that may cause high blood pressure. Therefore, the effectiveness of the study catheter and the alcohol (Peregrine Kit) will be assessed by how well the treatment reduces blood pressure.
All
18 year(s) or older
This study is NOT accepting healthy volunteers
NCT02910414
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Inclusion Criteria:
age 18-80
Have high blood pressure despite taking blood pressure medicine
You have not donated a kidney
Exclusion Criteria:
You have had removal of a kidney or kidney transplant
You have type 1 diabetes or severe type 2
Have severe untreated obstructive sleep apnea
Bleeding disorder
Heart & Vascular
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Location
Hershey, PA

Autonomic Control of the Circulation and the Venous Distension Reflex

This study is looking at how blood pressure control is altered by increased volume in veins.
Aimee Cauffman at acauffman@pennstatehealth.psu.edu or 717-531-1617
All
18 year(s) or older
This study is also accepting healthy volunteers
NCT03513770
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Inclusion Criteria:
21-40 years old
Fluent in written and spoken English
Capable of giving informed consent
Free of acute or chronic medical conditions such as hypertension, heart disease, lung disease, neuromuscular disease, kidney disease, diabetes or cancer
Able to visit Penn State Health Milton S. Hershey Medical Center in Hershey, Pa. for study visits
Exclusion Criteria:
Currently smoking
Pregnant or nursing
Currently using opioids or undergoing treatment for opioid use disorder
Living with a chronic disease such as hypertension, heart disease, lung disease, neuromuscular disease, kidney disease, diabetes or cancer
Men's Health, Heart & Vascular, Women's Health
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Location
Hershey, PA

fMRI based mapping of the supraspinal projections of the exercise pressor reflex

This study will examine how the brain controls blood pressure responses during exercise, and will include 2 separate visits. In one visit, you will perform a series of handgrip exercises followed by inflation of a blood pressure cuff while we collect muscle nerve activity and blood pressure. In the other two sessions you will perform a similar task while laying in an MRI machine.
Aimee Cauffman at acauffman@pennstatehealth.psu.edu or 717-531-1617
All
18 year(s) or older
This study is also accepting healthy volunteers
N/A
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Inclusion Criteria:
age between 21 and 40 years
healthy
able to perform handgrip execise
normal blood pressure
Exclusion Criteria:
claustrophobic
have metal implants
taking heart medication
pregnant/nursing
smoker
Heart & Vascular
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Location
Hershey, PA

The role of nuclear factor from activated T-cells (NFAT) in microvascular dysfunction

High blood pressure can lead to cardiovascular disease (CVD). CVD is a leading cause of illness and death in the United States. This research explores some of the ways high blood pressure impairs blood vessel function. This study uses minimum-risk procedures (flow meditated dilation, skin biopsy, and microdialysis) to explore the mechanisms underlying the impaired blood vessel function. We conduct experiments before and after 7-day treatment with FDA-approved drugs Telmisartan (prescribed to treat high blood pressure) and Tacrolimus (prescribed to treat eczema). The results of this study could suggest new ways to diagnose and treat high blood pressure. The expression of NFAT isoforms are altered in essential hypertensive vascular tissue and that short term telmisartan decreases NFAT-mediated cytokine production in hypertensive adults. We predict that 10 days of Telmisartan will alter the expression profiles of NFATc1 and NFATc3 and improve endothelial function and vascular smooth muscle cell responsiveness.
Susan Slimak at sks31@psu.edu
All
18 year(s) or older
This study is also accepting healthy volunteers
N/A
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Inclusion Criteria:
Men and women, 18-70 years of age
Normal or high blood pressure
Non-obese, BMI ≤ 39.9
Normal HbA1C of <6.5%
Not pregnant or breastfeeding
Exclusion Criteria:
Rash, skin disease, disorders of pigmentation
Diabetes, kidney, liver disease
Taking heart and blood pressure drugs
Nicotine use (e.g. smoking, chewing tobacco, vaping, etc.)
Low blood pressure, < 90/60 mmHg
Heart & Vascular
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Location
State College, PA

The effects of local negative pressure on forearm and skin blood flow in humans

This study continues our exploration into the mechanisms underlying the control of blood flow. During the experiments, we noninvasively measure skin blood flow (SkBF) and forearm blood flow (FBF) with a FLPI and venous occlusion plethysmography (VOP), respectively. The FLPI uses a low energy laser to measure SkBF. VOP uses blood pressure cuffs on the upper arm and wrist, and an elastic strain gauge encircling the forearm between the cuffs to measure the change in forearm-circumference over time from which we calculate FBF. For each experiment, we collect SkBF and FBF data for a 20-minute baseline, expose the skin of the forearms to negative pressure and then collect SkBF and FBF data for an additional 30-90 minutes. Each subject participates in 2 experiments that differ only in the protocol for the application of negative pressure (i.e. continuous, pulse).
Gabie Dillon at gad27@psu.edu
All
18 year(s) or older
This study is also accepting healthy volunteers
N/A
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Inclusion Criteria:
Men and women aged 18-40 years
Exclusion Criteria:
• Diagnosed cardiovascular, metabolic, or dermatological conditions that may impact the outcome measures of interest.
• Individuals that use nicotine-containing products
Illicit or recreational drug-use
• Taking corticosteroids, anticoagulants, NSAIDS, or blood thinners
Pregnancy
Heart & Vascular
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Location
State College, PA

Effects of heating on exercise pressor reflex in peripheral artery disease: Exercise Ability

To determine if the sympathetic and blood pressure (BP) responses to exercise will be attenuated during and after heat exposure in patients with peripheral artery disease (PAD).
Cheryl Blaha at cblaha@pennstatehealth.psu.edu or 717-531-1605
All
18 year(s) or older
This study is also accepting healthy volunteers
N/A
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Inclusion Criteria:
healthy females and males
all minorities and ethnicies included
free of acute or chronic medical conditions
over 21 years old
Exclusion Criteria:
Females who are pregnant or lactating
under 21 years old
Decisional impairment
Heart & Vascular
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Location
Hershey, PA

Effects of heating on exercise pressor reflex in peripheral artery disease: Sympathetic Response

The purpose of this study is to examine if nervous system and blood pressure responses to exercise will be less with heat exposure in patients with peripheral artery disease (PAD) and healthy controls.
Cheryl Blaha at cblaha@pennstatehealth.psu.edu or 717-531-1605
All
18 year(s) or older
This study is also accepting healthy volunteers
N/A
Show full eligibility criteria
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Inclusion Criteria:
At least 21 years old
free of acute medical conditions
any race or ethnicity
women or men
Exclusion Criteria:
have a chronic medical concern
females who are pregnant or lactating
age < 21 years old
Heart & Vascular
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Location
Hershey, PA

Postmenopausal women and their endothelium: Is dietary nitrate supplementation protective?

Heart disease is the leading cause of death in the United States. The loss of estrogen from menopause puts women at a greater risk of developing heart disease. The purpose of this study is to determine the effects of drinking beetroot juice on measures of blood vessel health and blood pressure. Participants will drink beetroot juice and placebo juice each for one week followed by blood pressure measurements and ultrasound imaging of an artery in the upper arm. A sub-aim of this study is to investigate the effects of estrogen status on blood vessel function between pre- and post-menopausal women.
Jocelyn Delgado at jmd956@psu.edu or 408-679-8390
Female
18 year(s) or older
This study is also accepting healthy volunteers
NCT03644472
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Inclusion Criteria:
Post-menopausal women
BMI <35
Blood pressure <130/80
Premenopausal women
Exclusion Criteria:
Individuals taking hormone therapy
Individuals with resting blood pressure > or = 130/80 mmHg
Users of any tobacco and/or nicotine products (smokers, chewing tobacco, nicotine-containing patches/gum, smokeless cigarettes)
Individuals with any overt cardiovascular, metabolic, hematologic, pulmonary, renal, musculoskeletal, and/or neurological disease(s)
Food & Nutrition, Heart & Vascular, Women's Health
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Location
State College, PA

Endometriosis and microvascular dysfunction

Endometriosis, is a disorder that occurs in women, is when tissue that should be normally found inside the womb is also found in sites outside of the womb. This disorder impairs the function of the endothelium, the cells that line the body’s blood vessels (endothelium). The endothelium helps to control blood flow in healthy vessels. Women with this disorder not only have an increased risk for high blood pressure and high cholesterol, they also have an increased risk for cardiovascular disease. They have a higher risk for cardiovascular disease, too. With this study, we will learn how endometriosis impairs the lining of blood vessels and increases the risk for disease. We will test two different intervention strategies to reduce long-term cardiovascular disease risk in women with endometriosis.
Susan Slimak at sks31@psu.edu or 814-863-8556
Female
18 year(s) or older
This study is NOT accepting healthy volunteers
NCT05059626
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Inclusion Criteria:
Women, 18-45 years of age
Endometriosis
Exclusion Criteria:
Tobacco consumption (e.g. smoking)
Pregnant and/or breastfeeding
Taking blood pressure medication
Heart & Vascular, Pregnancy & Infertility, Women's Health
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Location
Altoona, PA
Harrisburg, PA
Hershey, PA
State College, PA
Williamsport, PA

Role of microRNA activation of lectin-like oxidized LDL receptor (LOX-1) mechanisms in microvascular dysfunction in women with endometriosis

Endometriosis is a gynecological disorder associated with chronic pelvic pain, pain during intercourse, and infertility. With endometriosis, endometrium-like tissue is found in sites outside the uterine cavity. This disorder affects 6% - 10% of women of reproductive age. It can be as high as 35-50% in women who have pain or infertility. Endometriosis is associated with higher risk of hypercholesterolemia and hypertension that increases risk for cardiovascular disease (CVD). CVD is characterized by dysfunction of the blood vessels of the body. CVD is the leading cause of death in women. Two groups of women complete this study: 1) healthy women between the ages of 18 and 45 years (Controls); 2) women between the ages of 18 and 45 years with endometriosis. The screening and two experiments include blood draws. After passing a medical screening, each subject participates in a microdialysis (MD) experiment before and after 6-9 days of oral atorvastatin therapy (10mg/day). Atorvastatin (brand name: Lipitor) is an FDA-approved drug that physicians prescribe to lower blood cholesterol. The atorvastatin also suppresses substances made by the body that increase the risk of CVD. MD is a procedure in which a thin tube of membrane that mimics a capillary blood vessel is implanted in the skin. Substances of interest are added to the saline flowing through the MD sites and are delivered into small areas of skin. The MD experiments combine the perfusion of the test-substances with local heating of the skin to explore the causes for the dysfunction of blood vessels and increased risk for CVD that occurs with endometriosis.
Susan Slimak at sks31@psu.edu or 814-863-8556
Female
18 year(s) or older
This study is also accepting healthy volunteers
N/A
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Inclusion Criteria:
Women, Ages 18-45
Do or do not have endometriosis
Have normal blood pressure
Exclusion Criteria:
Use of nicotine-containing products (e.g. smoking, chewing tobacco, etc.)
High Blood Pressure
Abnormal liver function
Known allergy statins (Lipitor)
Pregnant or Breastfeeding
Heart & Vascular, Pregnancy & Infertility, Women's Health
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Location
State College, PA

Endometriosis and microvascular dysfunction 3

Endometriosis, is a disorder that occurs in women, is when tissue that should be normally found inside the womb is also found in sites outside of the womb. Endometriosis is a disorder that is associated with systemic inflammation. This disorder impairs the function of the endothelium, the cells that line the body’s blood vessels (endothelium). The endothelium helps to control blood flow in healthy vessels. Women with endometriosis not only have an increased risk for high blood pressure and high cholesterol, they also have an increased risk for cardiovascular disease. With this study, we will learn how systemic inflammation in endometriosis impairs the lining of blood vessels and increases the risk for cardiovascular disease. We will use a short term intervention with a non-steroidal anti-inflammatory to examine how inflammation impact endothelial function in women with endometriosis
Susan Slimak at sks31@psu.edu or 814-863-8556
Female
18 year(s) or older
This study is also accepting healthy volunteers
N/A
Show full eligibility criteria
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Inclusion Criteria:
Women, 18-45 years of age
With and without Endometriosis
Exclusion Criteria:
Tobacco consumption (e.g. smoking)
Pregnant and/or breastfeeding
Taking blood pressure medication
Known allergy to Salsalate
Heart & Vascular, Pregnancy & Infertility, Women's Health
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Study Locations

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Location
Altoona, PA
Harrisburg, PA
Hershey, PA
State College, PA
Williamsport, PA