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Filter by:The goal of this crossover study was to learn about the potential regulatory role of serotonin in interoceptive processing and its relationship to levels of state anxiety. This experiment directly compared the impact of a selective serotonin reuptake inhibitor (SSRI) (20mg CITALOPRAM) to that of a PLACEBO on the neural processing of ordinary interoceptive sensations and the relationship of these influences to anxious states. Healthy young volunteers completed the visceral interoceptive attention task with each treatment condition (citalopram and placebo). The task involves focusing attention on heart, stomach, or visual sensation control while scanned with functional magnetic resonance imaging (fMRI). The difference in haemodynamic response between interoceptive sensation(s) and visual sensation (i.e. the relative interoceptive response) is compared between treatment conditions. State anxiety is measured at each test period. It is used to test for a moderating effect of state anxiety on the influence of serotonin in interoceptive processing and used post-hoc to explore associations between changes in state anxiety and changes of interoceptive relative interoceptive response due to the SSRI.
The purpose of this study is to verify the immediate effects of Tissue Flossing on knee flexion range of motion
Physical exercise, especially of high intensity, is a significant burden to the athlete's body. It should be emphasized that achieving high results in competitive sports requires significant, sometimes extreme, exercise loads during training, which may result in homeostasis disorders, adversely affecting athletes' fitness. Intense and prolonged physical exercise elevates reactive oxygen species, potentially impacting immune function. The mechanism, particularly in high-intensity activities, remains incompletely understood. Excessive oxygen radicals may induce metabolic changes, causing rapid erythrocyte damage and elevated redox-active free iron. This iron increase can be harmful, increasing oxidative stress and immune system activation. The sustained negative impact that may be observed even during post-workout recovery needs further exploration. "This study aims to explain the impact of an intense exercise test on the immune system, pro-antioxidant balance, and iron metabolism in athletes with varying training levels. The primary questions it seeks to address are: 1. How do athletes' experience and training background influence the immune system's response, pro-antioxidant balance, and iron regulation? 2. Can the level of adaptation to physical exercise (training status) affect the rate of regeneration and the time required to return to pre-exercise homeostasis?"
Homeostatic plasticity is a mechanism that stabilizes neuronal activity to prevent excessive nervous system excitability. This mechanism can be investigated in humans by applying two blocks of non-invasive brain stimulation, such as transcranial direct current stimulation (tDCS). In healthy subjects, homeostatic plasticity induction over the primary motor cortex increases the amplitude of motor-evoked potentials after the first block of excitatory tDCS, which then decreases after the second block of excitatory tDCS. However, this mechanism is impaired in chronic and experimental pain, demonstrated by an increase in excitability instead of a reversal. The role of homeostatic plasticity mechanisms in pain is yet to be unraveled, but homeostatic plasticity may hold an important role in pain development or persistence. Thus, the aim of this study is to investigate if the cortical nociceptive response reflected by contact heat stimulation (CHEPs) is regulated by homeostatic mechanisms. For this, homeostatic plasticity will be induced in both the primary motor (M1) and sensory cortices (S1). The first research question will explore if the contact heat evoked potentials are homeostatically regulated and if this regulation is occurring locally or globally in the cortex. Additionally, it will be investigated if and how capsaicin-induced nociception interacts and effects the homeostatic response as reflected by CHEPs.
The main purpose of this study is to evaluate the effect of Pirtobrutinib (LOXO-305) on multiple oral doses of digoxin (P-gp substrate) when administered as single and multiple doses by collecting the blood samples and conducting the blood tests to measure how much digoxin is in the bloodstream and how the body handles and eliminates it in healthy participants. The study will also evaluate the safety and tolerability of Pirtobrutinib. Participants will stay in this study for up to 58 days, including screening.
The main objective of this trial is to investigate: - the relative bioavailability of Avenciguat (BI 685509) TF2 (Reference, R) vs. Avenciguat (BI 685509) iCF (Test 1, T1) tablets under fasted conditions - the relative bioavailability of Avenciguat (BI 685509) iCF tablets under fasted (T1) and fed (Test 2, T2) conditions - the relative bioavailability of Avenciguat (BI 685509) iCF tablets given alone (T1) and together with esomeprazole (Test 3, T3) under fasted conditions
The main purpose of this study is to measure how much of pirtobrutinib (LOXO-305) gets into the bloodstream and how long it takes the body to eliminate it in participants with impaired liver function and healthy participants. The side effects and tolerability of pirtobrutinib will also be evaluated. Participation could last about 46 days.
The main purpose of this study is to measure how much of pirtobrutinib (LOXO-305) gets into the bloodstream and how long it takes the body to eliminate it in participants with impaired kidney function and healthy participants. The side effects and tolerability of pirtobrutinib will also be evaluated. Participation could last around 46 days.
Goji Berry as a functional food have been shown to reduce risk of hyperlipidemia, type 2 diabetes, etc. However, human studies are limited in this area. In this study, it has been aimed to evaluate the effect of goji berry consumption on some biochemical parameters in healthy individuals.
The purpose of this study is to compare two finished products of PF-07940367 in terms of the uptake into the blood stream. This study is seeking participants who are: - Healthy male or female participants aged 18 years or older. All participants in this study will receive PF-07940367 once by mouth. The participants may receive different tablets by mouth for PF-07940367. The study will compare experiences of people receiving two different products of PF-07940367. This will help understand how much PF-07940367 is taken up into the blood for each product given. Participants will take part in the study for about 112 days. During this time, participants will have to stay onsite for 5 days. There will be up to 2 additional onsite study visits and 3 remote (telephone call) study visits.