This is a study of individuals older than 18, undergoing abdominal procedures in which the liver is accessible, and are amenable to liver samples being collected during their surgical procedure, with the option to participate in a specialized scan that can provide information on liver health, stiffness, and fat content. This study is trying to figure out how senescent (aging) cells in the liver are related to an individual's health status and better understand the association between these cells and different metabolic diseases.

The main purpose of this study is to see whether choline can help cognitive development (thinking / memory) in children with Fetal Alcohol Spectrum Disorders (FASD). The study will compare choline with a placebo to see if taking choline is better than taking a placebo. The placebo in this study looks and tastes like choline but has no choline in it. Choline is a nutrient found in many foods and is grouped within the vitamin B complex.

We are doing the RARE study to learn more about Cystic Fibrosis (CF). CF is caused by mutations in a gene that produces a protein called the cystic fibrosis transmembrane conductance regulator (CFTR). In people with CF, the CFTR does not function correctly. Medications are being developed to help the CFTR function better, but those medications mostly benefit people with common CFTR mutations. There are more than 1,900 mutations of the CF gene. Some of these mutations are rare and found only in a few people. The goal of this research study is to collect specimens (blood, nasal cells, rectal cells) from people with rare CFTR mutations. Another purpose of this study is to create induced pluripotent stem cells or iPS cells. “Pluripotent” stem cells are cells that can be changed into almost any cell type of the body (such as lung or intestine). They can be kept alive and stored indefinitely. There are different kinds of pluripotent stem cells. Inducted pluripotent stem cells can be created from many different kinds of specimens (such as blood, nasal cells, rectal cells). This is different from embryonic stem cells, which can only be derived from embryos. The specimens collected during this study and iPS cells created from them will be stored for use in future research to learn more about CF and study the effect of new medications. This could identify new medications that may help people with rare CFTR mutations.

The goal of the proposed project is to investigate whether brain abnormalities are present in children to young adults after the recovery from coronavirus disease 2019 (COVID-19).

To collect additional real-world safety and effectiveness data for the OCS™ Lung System and to expand the long-term clinical evidence supporting the use of OCS™Lung System in lung transplantation.

This study is enrolling participants who have been diagnosed with juvenile spondyloarthritis, are taking a tumor necrosis factor inhibitor (TNFi) and have reached a clinically inactive disease state for a minimum of six months. Researchers want to know if children who have maintained inactive disease for at least 6 months can maintain quiet disease without taking their medication as frequently or stop the TNFi therapy. Quiet disease means that disease related symptoms are not active or being experienced in the patient. Researchers also want to know the safest method to bring patients off medication. If a flare does occur during therapy reduction, researchers want to find out whether they can predict when a flare is most likely to happen, and how quickly an inactive disease state can be recaptured.

This study will evaluate if there is a relationship between bone health, fertility, and metabolism to help develop future treatments for SCI. Both men with and without SCI will be participating in this trial to better understand how bone health, fertility, and metabolism are impacted by an injury to the spinal cord.

This phase II trial studies how well combination chemotherapy works in treating patients (≤ 30 years old) with newly diagnosed stage II-IV diffuse anaplastic Wilms tumors (DAWT) or favorable histology Wilms tumors (FHWT) that have come back (relapsed).This trial may help doctors find out what effects, good and/or bad, regimen UH-3 (vincristine, doxorubicin, cyclophosphamide, carboplatin, etoposide, and irinotecan) has on patients with newly diagnosed DAWT and standard risk relapsed FHWT (those treated with only 2 drugs for the initial WT)and regimen ICE/Cyclo/Topo (ifosfamide, carboplatin, etoposide, cyclophosphamide, and topotecan) has on patients with high and very high risk relapsed FHWT (those treated with 3 or more drugs for the initial WT).

The purpose of the current study is to test the effects of two forms of cognitive training: visual perception training or visual cognitive control training in individuals with early psychosis.

This research is being done to help us better understand the different DNA repair disorders. We will collect data and samples that we will use to develop new therapies and medicine to help treat the disease. We expect that participants will be in this research study for 3 years. Visits will occur every six months and alternate between in-person and remote. Remote visits should be expected to last 1-2 hours, and in-person visits should be expected to last 3-4 hours.

In the first phase of the study, participants will be asked to complete two sets of appointments six months apart. During both sets of appointments, participants will be asked to complete interviews and questionnaires about their life experiences and mental health, and they will have an EEG and fMRI while completing computerized tasks. The second phase of the study is optional. In this phase, participants will test one of two forms of computerized cognitive training, or brain games. They will be asked to complete 10 hours of training over a 3-6 week period. After the training period is over, they will have two sets of follow up visits, one right after the training period and one five months later. At these appointments, participants will complete the same activities done in the first phase of this study, including the interviews, questionnaires, and imaging (fMRI and EEG) combined with computerized tasks. We are recruiting two groups of participants for this study. One group will include individuals who experience hallucinations, delusions, paranoia, or a psychosis disorder (i.e., schizophrenia), and the other group will be individuals who do not have a diagnosis or family history of schizophrenia, bipolar disorder, or autism spectrum disorder.

We are trying to learn more about how the brain controls movement and how this affects function after stroke. We expect differences in the side of brain damage to result in distinct movements of each arm. We will collect information with standard clinical exams and movements during tasks completed on the Kinereach virtual reality system. We will compare results between people who have and have not had a stroke.

The purpose of this study is to measure levels of blood and brain chemicals related to oxidative stress and inflammation in healthy volunteers and individuals with Type 1 Gaucher disease (GD1) to see if these levels are altered by GD1. We will also examine if there is a change in these blood and brain chemicals after participants begin taking oral N-acetylcysteine (NAC), which is available both as a prescription medication and a natural product that has antioxidant and anti-inflammatory effects.

Freezing of gait is a common problem in people with Parkinson's disease. Episodes of freezing can be overcome when a sensory cue is provided. This study will further develop and study the efficacy of a wireless shoe insole that can monitor walking and provide a cue (acoustic or vibrotactile) when a freezing event is detected. The experiment is designed to further test the ability of the device and algorithm to reliably detect freezing and release the episode with an external cue. This study has the potential to develop a tool that can help reduce the incidence and severity of freezing events in people with Parkinson's disease.

This is a registry study. The Cardiac Sarcoidosis Consortium (CSC) is an international, multicenter partnership among physicians and allied professionals at major medical centers with the unifying purpose to learn more about cardiac sarcoidosis through collaborative research.

The objective of the study is to define quality of life in patients with upper airway stenosis after bypassing the stenosis with either tracheotomy or t-tube stenting. Participants complete surveys over 2 years to collect quality of life information.

Risk for suicidal behavior in young people may include particular types of brain functions. The goal of this research is to learn more about the biology of the brain as it relates to suicidal thoughts and behaviors.

Severe aortic valve stenosis can include stiffening and hardening of the heart valve leaflets (tissue that opens and closes in the heart valve) so that the valve cannot work properly. If left untreated, excessive strain put on the heart muscle will eventually cause it to fail or lead to other serious complications. This study is a research project to assess a way of replacing aortic valves without the need for open-heart surgery and without surgically opening the heart to remove the narrowed valve. The device under study is called the ACURATE Transfemoral Aortic Valve System. The study will compare the safety and effectiveness of the ACURATE Valve, along with other commercially available TAVR devices.

The purpose of this study is to examine a new, experimental treatment for adolescents at risk for suicide attempts called neurofeedback training. In neurofeedback training, you are trying to control your brain function on purpose. In this study, your child will see their brain activity (displayed like a thermometer). He/she will recall positive memories to try to change the levels of their brain activity shown on the visual thermometer inside a scanner.

This is a study of adults with unexplained chronic cough between 18-80 years old. This study is trying to determine whether a noninvasive vibrotactile stimulation device can help reduce cough symptoms.

This research is being done to determine if a procedure done by the anesthesiologist, known as a paravertebral block, can decrease the chance of developing atrial fibrillation after surgery. The block consists of using a numbing medication delivered over time through two small tubes to specific spots on the upper back. There is evidence that this helps reduce the chance of atrial fibrillation after similar procedures and the potential complications of that condition.

This study is being done to improve outcomes after kidney donation and kidney transplantation. We will test kidney donors and kidney transplant recipients for apolipoprotein L1 gene (called APOL1) variants (or forms of the gene) and to see how these may affect them. Genes control the traits inherited from your family such as your eye color or blood type. Only a blood sample (and possibly urine) will be collected. Information routinely collected as part of surgery will also be used in the study. There will not be any changes to usual medical care.

This study aims to determine the role of menopause and exogenous hormone use in regulating antiretroviral disposition in the female genital tract.

The purpose of this investigation is to identify the potentially crucial role of anticipatory reward mechanisms maintaining bulimic behavior (i.e., binge eating and purging) in bulimia nervosa (BN).

Few medical treatments are available to improve walking ability in patients with PAD. This research study will help determine the effects of cocoa flavanols on walking ability in people with blockages in their leg arteries. Cocoa flavanols are a type of plant nutrient found in cocoa beans. These supplements are available over-the-counter at drugstores.

Balance and walking problems in patients with Parkinson’s Disease do not respond well to the typical medication or surgical treatments. This research study uses five small wearable devices that attach to clothing and can measure the body’s location while performing walking tests, balance tests, and normal daily activities. By comparing patients with Parkinson’s Disease to people of similar age without Parkinson’s Disease, we hope to learn important differences relevant to the walking and balance problems in Parkinson’s Disease

The purpose of the study is to see how aerobic exercise and cognitive training alone or together affect cognition, brain structure and function, and physical fitness over the course of 18 months.

Almost 300,000 Americans with a spinal cord injury or disorder (SCI/D) suffer from reduced or complete loss of sensory and motor function, which can compromise functional independence and quality of life. The purpose of this study is to find better treatment options for improving sensation and movement after SCI/D.

The goal of this study is to learn more about the effects of menopause on women's blood pressure and heart health. We are looking for women between the ages of 35 and 70 years to participate in the study. Participants may be pre- or postmenopausal; we are specifically interested in evaluating the influence of premature (< age 40 years) and early (< age 46 years) menopause.

The purpose of this study will be to investigate the optimization of spinal cord stimulation with ECAPs in patients with spinal cord implants.