All Clinical Trials

The goal of this study is to learn more about the brain pathways and activity involved in creating Visual Snow Syndrome (VSS). The main questions it aims to answer are: * Does VSS arise from spontaneous activity in brain pathways? * Where in the brain does the activity contributing to VSS arise? * How does brain activity contribute to VSS? Participants will: 1. Undergo assessments and questionnaires to understand visual and mental symptoms, cognitive, and sensory function. 2. Make visual judgements based on images presented to them both inside and outside a magnetic resonance imaging (MRI) machine. 3. Undergo scanning of their brain while inside of an MRI machine. Read Less

The purpose of this study is to compare the use of short acting opioids (fentanyl/hydromorphone) with long acting opioids (methadone) for pain control following cleft palate surgery in infants and young children. Read Less

The goal of this study is to find out if improving emotion regulation skills use during pregnancy reduces maternal stress and improves heart rate. The main questions it aims to answer are: * Does improving emotion regulation skills during pregnancy reduce stress and improve the ability to cope? * How is a participant's heart rate affected by their ability to control their emotions during pregnancy? Researchers will test the hypothesis that dialectical behavior therapy skills groups (DBT-P) will improve emotion regulation skills use as well as heart rate. Participants will: * Visit the clinic for 3 sessions at the beginning, middle and end of their pregnancy. * Compete surveys and interviews asking about their thoughts, feelings and how they cope with emotions. * Have their heart rate taken. * If assigned to the investigational group, they will complete weekly remote emotion regulation skills groups for 10 weeks and complete daily diary cards that ask about mood and any thoughts of self-harm. Read Less

The goal of this observational (cross-sectional) study is to better understand nutrition literacy in survivor-caregiver dyads and its impact on nutrition related outcomes and quality of life. We're interested in finding out how much they know about nutrition and how this might relate to their overall health, body composition, functional status, and overall well-being. We will target post-treatment head and neck cancer survivors and a paired informal caregiver. The main questions we aim to answer are: * How does the nutrition literacy of both the survivor and caregiver relate to their sociodemographic, behavioral, and clinical characteristics? * How dyadic nutrition literacy influence individual nutrition outcomes like skin carotenoid levels, body composition, and functional status? * Does the shared nutrition knowledge (nutrition literacy) of both the survivor and caregiver impact their quality of life together? Participants will: Answer questions about their knowledge of nutrition. Have their nutritional health status checked. Use a non-invasive device to measure skin carotenoid content to validate self-reports of fruit and vegetable intake. Have a simple and painless test to measure their body composition - like how much muscle and fat they have. Do some physical tests like grip strength and walking to measure their physical ability. Answer questions about their general well-being and lifestyle, like exercise and diet. (For the survivor) Share details about their cancer, its treatment, and their overall well-being. (For the caregiver) Answer questions about their role in taking care of the survivor, and their involvement in care routine such as food shopping and cooking. Read Less

The study will compare the delivery of an 8-week Mindful Self-Compassion training, in-person against video-conference, on anxiety and depression symptom severity in patients with diagnosed anxiety disorders (generalized anxiety disorder, social anxiety disorder, and panic disorder) or major depressive disorder or dysthymia. Read Less

The goal of this preliminary study is to learn if healthy older African American (AA) adults have a larger change in their kidney blood flow during exercise compared to White (W) adults. The main questions that this study aims to answer are: * Do healthy older AA adults have a larger decrease in kidney blood flow during exercise compared to W adults? * Do healthy older AA adults have a larger decrease in kidney blood flow during other types of stress compared to W adults? During one visit in the research lab, participants will: * Perform cycling exercise while lying down * Undergo a cold hand test * Perform a mental math test Completing this preliminary study will help researchers to understand more about why many AA adults have heart and kidney problems, so future research can study ways to reduce the number of AA adults who have these health issues. Read Less

Alopecia areata (AA) is a chronic autoimmune disease that causes non-scarring, focal areas of hair loss. Due to its resulting disfigurement and unpredictable course, it is recognized as a serious medical condition with severe emotional and psychosocial distress, including a high prevalence of depression and anxiety.1-4 Treatment options for alopecia areata are limited. Cyclosporine has been used as an effective therapeutic option in the treatment of psoriasis. Additionally, the use of oral cyclosporine, alone or in combination with other agents, has been used in the management of a multitude of dermatologic conditions, including alopecia areata, pyoderma gangrenosum, chronic idiopathic purpura, atopic dermatitis, dyshidrotic eczema, Behcet disease, dermatomyositis, among others.8 Although cyclosporine has demonstrated efficacy in the management of these diseases, systemic side effects of oral cyclosporine often limit its long-term use. However, intralesional injections of cyclosporine have not been investigated. Through this randomized double-blind placebo-controlled clinical study, the study team aims to evaluate the safety, dosing, and efficacy of intralesional cyclosporine for use in the treatment of alopecia areata. The study team expects about 12 people at UC Davis to take part in this research. The study itself includes 11 visits and will last about 12 weeks. Read Less

The study aims to longitudinally capture the full spectrum of symptoms, treatment utilization, and overall Health-related Quality of Life (HRQoL) experienced by C3 glomerulopathy (C3G) patients and their caregivers. By primarily utilizing home reported outcomes (HRO) data on symptom burden and treatment usage, supplemented with patient-reported outcome (PRO) measures (collected at baseline and monthly), the study seeks to establish a new real-world data (RWD) source to understand symptom variability and HRQoL as reported by C3G patients and caregivers, including those taking iptacopan Read Less

The purpose of this study is twofold: (1) Develop a new evaluation scale for mental body representations (MBR, i.e., body awareness and visuospatial body maps) for adults with spinal cord injury (SCI) with and without neuropathic pain. (2) Assess the psychometric properties of usability, reliability, and validity of the new evaluation scale This is a cross-sectional observational study design. For Aim 1, this study will involve initial item generation for a novel MBR evaluation scale for SCI through email communication, and individual interviews proctored remotely through Zoom, or, if preferred by the participant, in-person. For Aim 2, the study will include a Zoom call for consenting and questionnaires, as well as an in-person visit where participants will be tested with the new SCI-BodyMap evaluation scale, and a questionnaire asking about the usability and satisfaction of the new evaluation scale. Read Less

The study team will use small pieces of human hearts which are removed as part of a required surgical procedure to study different objectives. One of the objective is how calcium ions pass through the membrane of heart cells in order to tell the heart cell how much force to contract with when the heart beats. Investigators will also study the proteins and RNA of these pieces to determine how the newborn heart cells control their force of contraction differently from adult heart cells. Investigators hypothesize that infant hearts have different regulation of calcium entry than adult hearts. The study team also wants to study combinations of 3D cardiac spheres with multiple environmental cues that can improve functional and metabolic maturation of Human pluripotent stem cell-derived cardiomyocytes (hPSC-CMs) and generate a more clinically relevant cell model. Read Less

This study collects information on the side effects of proton therapy and detailed information on the proton therapy treatment plan itself. This may help researchers develop methods to predict the risk of side effects for future patients and learn the long-term benefit of proton therapy. Read Less

The purpose of this study is to determine whether accelerated BEP chemotherapy is more effective than standard BEP chemotherapy in males with intermediate and poor-risk metastatic germ cell tumours. Read Less