View clinical trials related to Healthy.
Filter by:The purpose of this research is to compare sympathetic function (flight or fight system) and arterial health including structure and mechanics of participants with history of spontaneous coronary artery dissection (SCAD) to age and sex matched control participants.
Gut microbiota produce different metabolites within the human body, which include neurotransmitters. Animal studies have demonstrated a critical role for the gut microbiota in various aspects of brain and behavioural function, and a smaller number of studies in humans have shown differences of gut microbiota composition in psychiatric conditions. However, almost nothing is known about the impact of neurotransmitters produced by the gut microbiota on human brain and behaviour. The way in which differences in brain, behaviour and personality traits are associated with the gut microbiota, and how they are influenced by a probiotic will be explored, with a special focus on GABA (Gamma Amino Butyric Acid). Abnormalities of microbiota composition have been identified in metabolic disorders, such as inflammatory bowel disease and obesity, and psychiatric conditions, such as depression and anxiety. The aim of this intervention trial will be to answer the following fundamental questions: 1. Does the population of gut bacteria capable of producing GABA modulate brain-based measures of GABA? 2. Does the population of gut bacteria capable of producing GABA influence performance in behavioural tasks known to depend on GABA-ergic function? The impact of a GABA producing probiotic on the measures of GABA in the brain and serum, relevant metabolites in blood, faecal and urine samples and performance in GABA dependent behavioural tasks will be investigated in this trial.
The objective of the NAD-brain study is to determine the blood and brain pharmacokinetics of NAD replenishment therapy (NRT) using Nicotinamide Riboside (NR) or Nicotinamide Mononucleotide (NMN).
N,N-dimethyltryptamine (DMT) is a psychoactive substance with similar effects such as LSD or psilocybin. However, DMT is less well characterized than the latter substances. The present study is a modern randomized cross-over trial, investigating different intravenous DMT boluses over a broad dose range. Thus, different doses will be tested and related to subjective and autonomic effects.
The purpose of this study is to investigate the potential for cytochrome P450 (CYP) 3A4 induction after dosing with INDV-2000 via use of midazolam as a probe.
This study is conducted to evaluate the safety and the effectiveness of Lipmatte K on lip hydration and brightening. The study duration is 4 weeks and the lip assessment will be carried out at baseline, week 2 and week 4.The main questions this study aims to answer are: 1. The hydration effect of the product on lip. 2. The brightening effect of the product on lip. 3. To observe any adverse effect occurrence with the usage of the product.
This study is conducted to evaluate the effectiveness of product K cleanser and moisturizer when use in combination for skin rejuvenation. The study duration is 8 weeks and the skin assessment will be carried out at baseline, week 2, week 4 and week 8.The main questions this study aims to answer are: 1. The effect of cleanser and moisturizer K when use in combination on skin hydration. 2. The effect of cleanser and moisturizer K when use in combination on skin elasticity. 3. To observe any adverse effect occurrence with the usage of the products.
This study is conducted to evaluate the safety and effectiveness of an oral superfruits supplement for skin brightening and wrinkle reduction. Superfruits are reported to have high bioactive compounds with beneficial effects on human health. The study duration is 12 weeks and the skin assessment will be carried out at baseline, week 2, week 6 and week 12. The participants will consume the supplement for 6 weeks and at week 12, final skin assessment will be conducted. The main questions this study aims to answer are: 1. The skin brightening effect of the oral superfruits supplement. 2. The effect of the oral superfruits supplement on wrinkle reduction. 3. To observe any adverse effect occurrence with the consumption of the oral superfruits supplement.
A pulse oximeter is used for continuous monitoring of peripheral oxygen saturation (SpO2) and plays an important role in the early detection of hypoxia, guiding the titration of supplemental oxygen, and reducing the need for blood gas analysis. Therefore, the SpO2 accuracy of a pulse oximeter should be validated for patient safety. The objective of this study is to evaluate whether the CART-I pulse oximeter with a ring-type wearable PPG sensor (Sky Labs Inc., Seoul, Korea) provides clinically reliable SpO2 readings over the range of 70-100% SaO2, during steady-state, non-motion conditions.
This study is conducted to evaluate the effectiveness of topical serum X containing arbutin and glutathione for skin brightening. The study duration is 12 weeks and the skin assessment will be carried out at baseline, week 4, 8 and week 12.The main questions this study aims to answer are: 1. The skin brightening effect of the product on facial skin. 2. To observe any adverse effect occurrence with the usage of the product.