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NCT ID: NCT03447847 Enrolling by invitation - Healthy Clinical Trials

Effect of Composition and Timing of Ingestion of Fluids on the Urinary Excretion of Lithogenic Substances

Start date: February 27, 2018
Phase: N/A
Study type: Interventional

Interventional crossover study on healthy volunteers aimed at evaluating the effect of the composition and timing of ingestion of different types of water on the urinary excretion of lithogenic substances; the study will also analyze the effect of potassium citrate on urine pH and lithogenic substances

NCT ID: NCT03443050 Enrolling by invitation - Healthy Clinical Trials

Training on Unstable Surfaces and Effects on the Balance of Healthy Young People

Start date: March 2018
Phase: N/A
Study type: Interventional

The objective of this study is to determine the effects on balance and postural control produced by the implementation of a training program that includes work with unstable surfaces in its methods. It also seeks to quantify to what extent the benefits exceed those achieved with a training of similar characteristics, but implemented on a stable surface. An intensive program is proposed, whose target population is young adults.

NCT ID: NCT03435055 Enrolling by invitation - Healthy Clinical Trials

Network-Level Effects of Nitrous Oxide in the Human Brain

Start date: July 21, 2017
Phase: Phase 4
Study type: Interventional

The purpose of this study is to understand how a commonly used drug, nitrous oxide, acts on the brain to reduce pain. Nitrous oxide is commonly used in anesthesiology but there is limited knowledge on how this drug affects functional networks in the brain.

NCT ID: NCT03409445 Enrolling by invitation - Healthy Clinical Trials

Validation of a Food Frequency Questionnaire for the Assessment of Omega-3 Fatty Acid Intake

Start date: January 15, 2018
Phase: N/A
Study type: Observational

As essential nutrients omega 3 fatty acids contribute to normal growth and development. Inadequate intake is linked to the development of chronic diseases such as coronary heart disease, high blood pressure, cancer, arthritis, psychological illnesses and allergies. Therefore, it is important to be able to reliably detect the intake of these fatty acids. Due to eating habits varying in different countries the questionnaire documenting dietary habits needs to be adapted to the situation in question. Based on a US version we developed a questionnaire suitable for Switzerland and now wish to validate it by measuring the fatty acid composition of red blood cells, which will provide information on the intake of the various fatty acids.

NCT ID: NCT03384771 Enrolling by invitation - Healthy Clinical Trials

Predictors of Outcomes in MBSR Participants From Teacher Factors

Start date: January 2017
Phase: N/A
Study type: Observational

Objectives. The primary objective of the current proposal is to identify teacher-related factors that can be feasibly measured and shown to predict mindfulness-based intervention (MBI) participant outcomes. The secondary objective of this R34 proposal is to lay the groundwork for a large-scale R01-funded study in which the investigators anticipate studying participants in Mindfulness-Based Stress reduction (MBSR) courses provided by 50 or more teachers in a range of university- and community-based settings.

NCT ID: NCT03361605 Enrolling by invitation - Healthy Clinical Trials

Neuroimaging of Anesthetic Modulation of Human Consciousness

Start date: April 12, 2017
Phase: Phase 4
Study type: Interventional

This study's purpose is to see if mental functions take place during different levels of anesthesia, using a commonly used drug (Propofol). fMRI (functional Magnetic Resonance Imaging, or "brain imaging") shows areas in the brain involved in thinking at different depths of anesthesia.

NCT ID: NCT03333135 Enrolling by invitation - Healthy Clinical Trials

Ultramarathons and Impact of Phased Electromagnetic Field Therapy (PEMF)

Start date: December 12, 2016
Phase: N/A
Study type: Interventional

This research is being done to better understand the pulmonary consequences of completing an ultra marathon at altitude and a sea level city.

NCT ID: NCT03319446 Enrolling by invitation - Healthy Clinical Trials

Collection of Anonymized Samples

Start date: October 9, 2017
Phase: N/A
Study type: Observational

This is a generic sample collection study for collecting blood, stool, rectal swabs, nasal washes, nasopharyngeal aspirates, nasopharyngeal swabs, throat swabs, nasal swabs, and urine from human sources. Subjects will be recruited from BioFire Diagnostics employees and from the general community. Subjects may be asked about recent or ongoing illness at the time of specimen collection and these symptoms will be recorded and attached to the sample. No other identifying information will be collected and the samples will be kept anonymous.The samples may be used internally or by external sites, such as the clinical study sites, for evaluating and determining performance characteristics of in vitro diagnostic devices.

NCT ID: NCT03253835 Enrolling by invitation - Healthy Clinical Trials

Cardiac Blood Flow Patterns Associated With Left Ventricular Myocardial Damage

Start date: November 21, 2013
Phase: N/A
Study type: Observational

Various factors affect the performance of the heart: The contractile properties of myocardial muscle cells are the fundamental devices for translating tension-generation and shortening of the cardiac muscle into pressure-generation and blood volume ejection from the heart into the body. On the other hand, the performance of heart can be analyzed with respect to input and output of blood to/from the hollow cardiac muscle and evaluated in terms of the performance of a pump: With every heartbeat blood is sucked from a low-pressure system (veins) and pumped to the arterial high-pressure system via one-way valves, whereas efficiency, ejected blood volume, blood flow and pressures are linked by hemodynamic laws. Cardiac magnetic resonance (CMR) is the "gold standard technique" to determine cardiac function and muscle mass, as well as for non-invasive diagnosis of myocardial necrosis/fibrosis. Furthermore, new CMR imaging techniques enabling the measurement of myocardial magnetic relaxation times for characterization of myocardial morphology and the acquisition of time-resolved, three-dimensional blood flow velocity fields in the heart and surrounding vessels, represent promising tools for the evaluation of the interaction between myocardial morphology and cardiac function. Aim of this explorative study is to 1. identify myocardial pathology-associated blood flow patterns in the heart and surrounding great vessels, and 2. correlate characteristic blood flow patterns in the heat (existence of vortices, vorticity, vortex formation, propagation dynamics …) with myocardial injuries.

NCT ID: NCT03243448 Enrolling by invitation - Healthy Clinical Trials

Skin Sympathetic Nerve Activity and Sympathetic Tone

Start date: August 1, 2016
Phase: N/A
Study type: Observational [Patient Registry]

There are many sympathetic hyperactivity diseases in the investigators' clinical practice. However, the conventional method to measure the sympathetic nerve activity had many limitations such as clinical application, data interpretation and even therapeutic manipulation. Therefore the investigators would like to develop a non-invasive method to record the sympathetic nerve activity in the investigators' study that can help gathering the sympathetic nerve activity easily in the investigators' daily clinical situation. By the determination of sympathetic nerve activity status, the health caregiver can understand the disease more.