View clinical trials related to Normal Volunteers.
Filter by:In the present study, the cross-sectional area of subclavian vein, and the depth of the SCV from the skin are assessed in different head positions (neutral, rotation to ipsilateral or contralateral sides) and different shoulder positions (neutral or lowered) in spontaneous breathing obese adults.
The objectives of this study are to evaluate the effect of the timing of a moderate-fat meal on the single dose pharmacokinetics of entinostat and to evaluate the safety and tolerability of entinostat under fed and fasting conditions in healthy adult subjects.
The purpose of this study is therefore to evaluate the effect of concomitant drugs through an increase of intra-gastric pH levels on the bioavailability of entinostat. The primary objectives of this study are to evaluate the effect of multiple doses of omeprazole, famotidine, and the effect of an acidic beverage in combination with omeprazole on the single-dose PK profile of entinostat. The secondary objectives are to evaluate the safety and tolerability of a single dose of entinostat when administered with multiple doses of omeprazole, famotidine, and when administered with an acidic beverage in combination with omeprazole.
In the present study, the cross-sectional area of subclavian vein, the distances of subclavian vein ~ subclavian artery and subclavian vein ~ pleura are assessed in different head positions (neutral, rotation to ipsilateral or contralateral sides) in spontaneous breathing adults.
This study investigates the neural mechanisms of motor and cognitive networks using cognitive assessment, reaction time measurement, high-density EEG and fMRI.
The purpose of this study is to learn more about what causes insulin resistance. It has been suggested that proper breakdown of fat into energy (oxidation) in the body is important to allow insulin to keep blood sugar in the normal range. The investigators want to know if having one of the fatty acid oxidation disorders could have an influence on insulin action. Fatty acid oxidation disorders are genetic disorders that inhibit one of the enzymes that converts fat into energy. The investigators will study both normal healthy people and people with a long-chain fatty acid oxidation disorder.
Background: - Skin disease can have many causes. It can have widespread consequences, and in rare cases can lead to death. Researchers want to determine the causes of various types of skin diseases and find a way to treat them. Objectives: - To determine the causes of various skin diseases and find ways to treat them. Eligibility: - People ages 2 and older who have: - A skin disease or at risk of developing a skin disease OR - A family member of persons with a skin disease - Healthy volunteers ages 2 and older Design: - Participants will be screened under a separate protocol. - Participants may take a survey about how their skin condition affects their quality of life. - Participants will have a medical history and a physical exam including a detailed skin exam. Pictures will be taken of their skin to document any skin disease. - Participants will have specimens collected. This may include: - Several teaspoons of blood taken at each visit - Stool samples - Nail and body fluid (like saliva) samples - Cheek swabs. The inside of the cheek will be scraped for about a minute in each direction to collect cells. - Collection of skin samples with: - A swab (like a Q-tip) - Gently scraping skin to remove the outer layers of cells - Applying and removing 1-inch pieces of tape - Participants may have up to 4 skin biopsies in 12 months, with 4 separate biopsies taken each time. - An area of skin will be numbed with an injection. - A piece of skin the size of a pencil eraser will be removed using a small instrument. - A flat scar usually develops at the biopsy site.
This study is an open-label, randomized, single-center, single-dose, two-way crossover study of the PK properties of Androxal in healthy male subjects. Twelve male subjects will each receive a single dose of Androxal 25 mg in both the fed and fasting state.
The aim of the current study is to examine the role of serotonin on the cognitive parameters of motivation. They are embedded in a conceptual framework of motivation that merges decision-making and reinforcement learning theories. Every action is conceived as path from one state to another. The different states are associated to different values (positive for rewards and negative for punishments), and the different actions to different costs (risk, effort and delay). The tasks are designed such that the sensitivity to the state and action parameters can be inferred by fitting computational models.The primary objective is to characterize the effect of Citalopram 30mg on reward sensitivity, assessed in an incentive force task, in which participants are asked to squeeze a hand grip to win monetary rewards. Secondary objectives are to characterize the effect of Citalopram 30mg on other cognitive parameters of motivation (assessed with a motivational battery that includes rating, choice and learning tasks).
The aim of this study is to expand the understanding of the vitreous, its solute chemistry, and the normal relationship of that chemistry to the chemistry of the systemic circulation in humans. Sample human vitreous from patients undergoing vitrectomy surgery and compare to results of metabolic chemistry panel from subject. Allow the research team to extract .2ml sample of the .5ml - 1.0ml vitreous that is normally extracted during a routine undiluted vitreous biopsy, a standard procedure performed for various indications. Blood draw for metabolic chemistry panel (1-2 ml).