Healthy Subjects (HS)

This is a single-blinded study. Participants will be randomly assigned to self-initiated perturbation-based balance training (SePBT) group or control (conventional balance training) group. Kinematic and Kinetic changes following SePBT group compared to control will be investigated.

Mucociliary clearance is an essential defense mechanism of the lungs that helps remove inhaled particles, pathogens, and airway secretions. This process depends on the coordinated action of cilia, mucus properties, and airway hydration. In healthy individuals, mucus is continuously transported toward the throat, allowing effective clearance of harmful substances. However, this mechanism can be influenced by the hydration status of the airway surface liquid. Heated humidification delivered through high-flow nasal cannula (HFNC) has been shown to improve airway hydration, enhance ciliary function, and support mucociliary clearance. In addition, nebulized saline solutions are commonly used to modify mucus properties. Hypertonic saline has demonstrated short-term benefits in improving mucus hydration and clearance, but its use may be associated with side effects such as airway irritation or bronchoconstriction. In contrast, the effects of isotonic saline remain unclear, particularly when delivered in large volumes. The rationale of this study is that continuous nebulization of isotonic saline, when combined with heated humidification, may provide a sufficient cumulative amount of sodium to improve airway hydration and mucociliary clearance, potentially mimicking the effects of hypertonic saline without its adverse effects. This study is a randomized controlled cross-over trial conducted in healthy adult volunteers. Each participant will undergo three experimental sessions: a baseline assessment without intervention, a control condition with heated humidification alone, and an intervention condition combining heated humidification with continuous isotonic saline nebulization. The order of the control and intervention sessions will be randomized. Mucociliary clearance will be assessed using pulmonary scintigraphy. Participants will inhale radiolabeled aerosol particles (99mTc-DTPA), and the clearance of these particles from the lungs will be monitored over time using a gamma camera. Images will be acquired at regular intervals to quantify the rate of particle retention and clearance under each condition. The primary objective of the study is to determine whether continuous isotonic saline nebulization combined with heated humidification improves mucociliary clearance compared to heated humidification alone. Secondary outcomes include the evolution of mucociliary clearance over time during and after the intervention, as well as participant comfort assessed using a Likert scale. The findings of this study may help improve understanding of airway hydration strategies and contribute to optimizing respiratory care techniques aimed at enhancing mucus clearance.

The aim of this protocol is to assess physiological responses during various physical exercise protocols (whole-body exercise such as cycling or treadmill running, or localised exercise such as knee extension) and during inhalation of a gas mixtures with various oxygen contents (similar to exposure at high altitude).

This is a single center, phase 1, randomized, double-blind, placebo-controlled sequential study to evaluate the safety, tolerability, pharmacokinetics, and pharmacodynamics of single and multiple ascending oral doses of ISM8969 in healthy adults and elderly participants and obese adult participants at risk of cardiovascular disease.

What if heart disease starts outside the heart? This research will study how to simultaneously assess brain and body physiology, how they are jointly related to heart function, and how their response to physical and mental stress differs in patients with heart disease.

This study aims to develop a standardized workflow for sebum sampling and metabolomics/lipidomics analysis using Sebutape. A total of 200 participants will be recruited, including healthy individuals, patients with skin diseases, individuals undergoing dermatological treatments or using skincare products, and a subset of healthy participants receiving short-term topical antibiotic intervention. The study will investigate sebum composition, skin microbiome profiles, and their interactions under different conditions to explore potential biomarkers and clinical applications.

Non-Invasive Vagus Nerve Stimulation will be provided to the participants using a transcutaneous electrical nerve stimulation (TENS) unit, a routine physical therapy intervention by the faculty researcher who is a licensed physical therapist. The electrodes will be clipped to ear over the vagus nerve distribution area. The parameters will be 30 Hz, 250 us, 5 minutes, at tolerance (no pain). Reaction time will test collected pre and post the stimulation using online reaction time testing platform.

The goal of this clinical trial is to learn about a study drug called ISH0613 and how it behaves in healthy adults. This study will also evaluate the safety and tolerability of ISH0613 after a single intravenous (IV) dose. The main questions this study aims to answer are: I. What medical problems (side effects) may occur after receiving ISH0613? How does ISH0613 move through and get processed in the body? II. Does ISH0613 affect certain biological markers related to the immune system? III. Researchers will compare ISH0613 to a placebo (a look-alike substance that contains no active drug) to better understand its effects. Participants will: I. Receive a single intravenous infusion of either ISH0613 or placebo II. Stay in the clinical unit for several days for close monitoring after dosing III. Return to the clinic for follow-up visits over several weeks IV. Provide blood samples for safety checks and laboratory testing V. Be monitored for any side effects throughout the study

Clinical diagnosis of Parkinson's disease (PD), multiple system atrophy (MSA) and dementia with Lewy bodies (DLB) is challenging, especially in the early stages. Each disease is associated with distinct conformers of misfolded alpha-synuclein (maS) which form typical protein aggregates in the brain and represent key disease biomarkers. Thus, detection and characterization of intracerebral maS aggregates allow a definite diagnosis. The recent development of ultrasensitive assays enabled the detection of maS and other potential new biomarkers in peripheral tissues, although with several limitations. Here, the investigators propose to combine the expertise of leading and young researchers in the field of neurology, structural and molecular biology, biophysics and machine learning to perform ultrasensitive and multi-omics analyses of olfactory mucosa (OM), blood and urine of PD, MSA and DLB patients for detecting and characterizing key peripheral biomarkers allowing accurate disease recognition.

The goal of this trial is to investigate whether adding a small fraction of hydrogen gas to an oxygen-enriched breathing mixture can reduce pulmonary oxygen toxicity (POT) in healthy and active divers from the Swedish Armed Forces. The main questions it aims to answer are: * Does hydrogen gas reduce oxidative stress and changes in pulmonary function associated with prolonged hyperbaric oxygen exposure? * What are the underlying pathophysiological mechanisms of pulmonary oxygen toxicity? Researchers will compare oxygen-enriched breathing gas with 1-2% hydrogen to oxygen-enriched gas with 1-2% nitrogen (control) to see if hydrogen provides protective effects against POT during hyperbaric exposure. Participants will: * Complete two hyperbaric exposure sessions (hydrogen vs. nitrogen), each lasting 240 minutes at 1.75 ATA * Undergo pulmonary function tests and sampling of blod and urin before and after each session * Serve as their own controls in a double-blind, randomized, crossover study design

This is a randomized, double-blind, placebo-controlled, single ascending dose (SAD) study of SYH2070 injection when administered subcutaneously to healthy subjects.

This is a randomized, double-blind, placebo-controlled, single ascending dose and multiple ascending dose phase I clinical study to evaluate the safety, tolerability, PK and immunogenicity of SSGJ-627 in healthy adult subjects after single subcutaneous injection.

This study aims to evaluate the absorption, metabolism, and excretion of a single oral dose of \[¹⁴C\]SSS17 in healthy adult Chinese male subjects, elucidating its overall pharmacokinetic profile in humans to provide essential information for its rational clinical use.

The goal of this interventional study is to optimize the excitatory brain effects of combined neuromodulatory therapies on swallowing areas of the brain. The main question it aims to answer is: Does preconditioning with 1 Hertz (Hz) repetitive transcranial magnetic stimulation (rTMS) delivered over hemispheric pharyngeal areas enhance the activating effects of pharyngeal electrical stimulation (PES) on cortical excitability? Participants will: * Visit the department three times, with at least a one-week gap between visits. * Undergo baseline measurements for Pharyngeal motor evoked potential (PMEP) and Thenar motor evoked potential (TMEP), involving an electromyography (EMG) pharyngeal catheter inserted into the pharynx and gel electrodes to detect muscle activity. * Be randomly allocated to one of the three preconditioning-conditioning procedures during each visit : 1Hz rTMS followed by 5Hz PES, sham 1Hz rTMS followed by 5Hz PES, and 1Hz rTMS followed by sham 5Hz PES 1. Real rTMS will involve a figure-of-eight coil flat against the head delivering 1Hz stimulation at 90% of the thenar resting motor threshold. 2. Sham rTMS will involve holding the coil perpendicular to the scalp to prevent brain stimulation. 3. PES will involve a catheter delivering 0.2-ms pulses at 5Hz and 75% of the maximal tolerated intensity for 10 minutes. Sham PES will involve deactivating the current generator. * Complete PMEP and TMEP measurements at baseline before intervention and every 15 minutes from 0 - 60 minutes after the rTMS-PES procedure. * Complete a survey regarding tolerability and safety at the end of each visit.

This is a phase I clinical study to evaluate the pharmacokinetics (PK) similarity of single dose subcutaneous injection of Ebronucimab with different production processes in Chinese healthy male subjects.

This is a phase I clinical trial with a single dose escalation to evaluate the safety, tolerability, pharmacokinetics and pharmacodynamics of JH013 injection in healthy subjects

The use of adhesive bandages is a widely practiced technique in both clinical and sports settings. There is a great variety of materials used for bandaging, with multiple objectives: limiting movement, correcting joint positions, reducing pain, enhancing sports performance, and reducing the number of injuries. However, current knowledge about their potential effects is still limited, and more studies are needed to determine the most appropriate application parameters. For this reason, the objective of the study for which we request your collaboration is to determine to what extent the application of an adhesive bandage (neuromuscular tape) can influence muscle facilitation through fiber recruitment and strength development, to improve performance during exercise. The information derived from this research will provide a better understanding of the influence that an adhesive bandage (neuromuscular tape) can have on the neuromuscular system and on strength enhancement.