Clinical trials: Sympathetic Nervous System
Healthy, Obesity
Effect of Ghrelin on Sympathetic Nervous System
Ghrelin is a newly discovered peptide that is secreted by the stomach. Its main role is to stimulate food intake but recent studies indicate that it also acts on the cardiovascular system to confer beneficial effects.
- Trial name
- NCT00912587
- Testing
- ghrelin
- Where
- Australia
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- Baker Heart and Diabetes Institute
Physical Activity, Sympathetic Nervous System
Neuropeptide Y and Sympathovagal Balance
Neuropeptide Y (NPY) activates the sympathetic and vagal nervous systems through the Y1 and Y2 receptors. This double-blind placebo-controlled crossover study investigated the sympathovagal balance during three exercises on a…
- Conditions
- Physical Activity, Sympathetic Nervous System, Secretion; Catecholamine
- Trial name
- NPY (NCT03933787)
- Testing
- Saxagliptin 5mg, ergometric test in healthy volunteers
- Where
- Switzerland
- Volunteers
- 7 people, healthy volunteers welcome
- Sponsor
- Eric Grouzmann
Autonomic Nervous System Diseases
PET Scan in Patients With Neurocardiologic Disorders
This study is designed to use PET scans in order to measure activity of the sympathetic nervous system. The sympathetic nervous system is the portion of the nervous system that maintains a normal supply of blood and fuel to…
- Trial name
- NCT00001418
- Where
- United States
- Volunteers
- 335 people, healthy volunteers welcome
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Bone Blood Flow Regulation
Exploration of Blood Flow Regulation to Bone in Humans
Without blood flow, bone cannot maintain its integrity. Bone blood flow responds to various local and systemic factors, however, bone perfusion in humans remains relatively unstudied.
- Trial name
- NCT04083794
- Testing
- Laboratory based assessments
- Where
- United States
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Spaulding Rehabilitation Hospital
Women, Sympathetic Nervous System
Early Neurovascular Adaptations in Aging Women
Our goal is to enhance our understanding of early vascular adaptations in aging women with an emphasis on the sympathetic nervous system.
- Conditions
- Women, Sympathetic Nervous System, Aging, Blood Flow
- Trial name
- NCT06520982
- Testing
- Norepinephrine, Isoproterenol, Acetylcholine
- Where
- United States
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- University of Missouri-Columbia
Healthy Young Adults, Physical Activity Levels
Differences in Autonomic Recovery Between Physically Active and Inactive Women Following an Automated Massage Chair Intervention
The goal of this study is to investigate whether an automated massage chair can improve the body's recovery system in healthy young women (aged 19-26 years) who are either physically active or inactive.
- Conditions
- Healthy Young Adults, Physical Activity Levels, Inactive People
- Trial name
- NCT07529678
- Testing
- Massage chair
- Where
- Malaysia
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Universiti Sains Malaysia
Healthy, Hyperalgesia
Positron Emission Tomography to Measure Pain and Pain Control
This study will examine how the brain processes pain signals and how the different parts of the brain work with each other in response to painful stimuli.
- Conditions
- Healthy, Hyperalgesia, Pain, Peripheral Nervous System Disease
- Trial name
- NCT00001307
- Testing
- Oxygen-15 Water, Capsaicin
- Where
- United States
- Volunteers
- 273 people, healthy volunteers welcome
- Sponsor
- National Institute of Dental and Craniofacial Research (NIDCR)
Major Depressive Disorder
Stress and the Sympathetic Nervous System in Adults With Depression
To test our hypotheses, we will enroll healthy adults having no history of mood disorders and adults with major depressive disorder (MDD) having a broad range of depressive symptom severity.
- Trial name
- NCT04838262
- Testing
- Acute Stressors
- Where
- United States
- Volunteers
- 94 people, healthy volunteers welcome
- Sponsor
- University of Delaware
Insulin Resistance, Healthy
Role of Sympathetic Vasoconstriction on Insulin-Mediated Microvascular Recruitment and Glucose Uptake in Obesity
The purpose of this study is to better understand the contribution of sympathetic vasoconstriction to impaired insulin-mediated vasodilation and subsequently insulin-mediated glucose uptake.
- Conditions
- Insulin Resistance, Healthy, Obesity
- Trial name
- NCT03318094
- Testing
- Phentolamine, Saline, Sodium Nitroprusside
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University Medical Center
Spinal Cord Injuries (SCI), Spinal Cord Injury
Transcutaneous Spinal Electrical Stimulation to Improve Exercise Function After Spinal Cord Injury.
Our overall objective is to decrease the prevalence of multiple sedentary-related diseases that are secondary consequences of spinal cord injury (SCI).
- Conditions
- Spinal Cord Injuries (SCI), Spinal Cord Injury, Spinal Injury
- Trial name
- NCT07692191
- Testing
- Transcutaneous spinal electrical stimulation (TSES)
- Where
- Canada
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of Manitoba
Stress, Sympathetic Nervous System
Glucose Levels as a Biomarker for Stress in Firefighters
Stress is known to cause physical structures in the brain to dysregulate, resulting in health problems like cancer, cardiac disease, metabolic disorders (obesity), and depression.
- Conditions
- Stress, Sympathetic Nervous System, Hypothalamic Pituitary Adrenal
- Trial name
- NCT06899373
- Testing
- Continuous glucometer
- Where
- United States
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- University of Utah
Prediabetes, Obese
Inflammation Inhibition in Prediabetic Humans
Prediabetes, characterized by elevated fasting blood sugar or exaggerated blood sugar response to sugar ingestion, effects over 79 million adult Americans and is a precursor to the development of Type 2 diabetes.
- Trial name
- INCITE (NCT01977417)
- Testing
- Salsalate
- Where
- United States
- Volunteers
- 21 people, healthy volunteers welcome
- Sponsor
- Gary L. Pierce
Syncope
Evaluation of Chronic Orthostatic Intolerance
This study will conduct tests with patients with primary chronic orthostatic intolerance (COI) to learn more about this disorder of the autonomic nervous system.
- Trial name
- NCT00069693
- Where
- 3 sites in United States, Canada
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Healthy
Brain Receptors in Sympathetic Nervous System Regulation
The purpose of this study is to investigate the role of brain receptors called alpha2-adrenoreceptors in regulating the sympathetic nervous system, which maintains the supply of blood and fuel to the body's organs in times of…
- Trial name
- NCT00029627
- Testing
- Yohimbine
- Where
- United States
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- National Institute of Mental Health (NIMH)
Healthy
Effects of Manual vs Instrument-assisted Manipulation on Electromyographic Activity and Sympathetic Nervous System
This study evaluates the effects of manual and instrument-assisted cervical manipulation on electromyographic activity and sympathetic nervous system.
- Trial name
- NCT03736148
- Testing
- Manual Manipulation, Instrument-assisted Manipulation
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Escola Superior de Tecnologia da Saúde do Porto
Pain, Trigeminal Neuralgia
Transcranial Magnetic Stimulation (TMS) Effects on Pain Perception
The purpose of this study is to investigate the effects of transcranial magnetic stimulation on pain perception.
- Conditions
- Pain, Trigeminal Neuralgia, Neuropathic Pain
- Trial name
- NCT00349050
- Testing
- laboratory pain assessment, transcranial magnetic stimulation
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Medical University of South Carolina
Endothelial Function
Physiological Assessment of the Endothelium - Circadian Rhythm and Role of the Sympathetic Nervous System
The purpose of this study is to determine whether interventions aimed at increasing sympathetic tone modify endothelial function measures as assessed by the measurement of flow-mediated dilation (FMD) and constriction (FMC).
- Trial name
- PAN (NCT01713374)
- Testing
- Mental stress, no intervention, Myogenic activation
- Where
- Germany
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Johannes Gutenberg University Mainz
Stroke, Sympathetic Disorder
Contrast Bath and Sympathetic Skin Response
This study evaluates the effects of contrast bath on sympathetic skin response in stroke patients with complex regional pain syndrome .
- Trial name
- NCT04198532
- Testing
- Contrast bath
- Where
- 2 sites in Turkey (Türkiye)
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Istanbul Physical Medicine Rehabilitation Training and Research Hospital
Tobacco; Use, Harmful
The Influence of Electronic and Traditional Cigarettes Smoking on Hemodynamic Parameters
It is intended to examine 50 healthy volunteers aged 18 - 60 years. 12-hour abstinence from tobacco smoke, alcohol or coffee before the experiment will be required.
- Trial name
- EPAPHemo (NCT03037775)
- Testing
- Baseline, e-cigarette without nicotine, e-cigarette with nicotine
- Where
- Poland
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Medical University of Warsaw
Nightmare, Insomnia
INSIGHT: Insomnia, Nightmares, and Sympathetic Hyperactivity Intervention
The INSIGHT study is a multi-site clinical research program designed to examine how insomnia and symptoms of sympathetic hyperactivity impair sleep, cognition, and physiological restoration in warfighters, and to evaluate whether…
- Conditions
- Nightmare, Insomnia, PTSD, TBI
- Trial name
- INSIGHT (NCT07288593)
- Testing
- NightWare smartwatch configured to detect physiological signs of sympathetic activation during sleep, such as heart-rate spikes and movement patterns.
- Where
- 2 sites in United States
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- Uniformed Services University of the Health Sciences