Mitochondrial DAMPs as Mechanistic Biomarkers of Mucosal Inflammation in Crohn's Disease and Ulcerative...
Inflammatory Bowel DiseasesThe MUSIC study is a multi-centre, longitudinal study set in the real world IBD clinical setting to investigate and develop a new biomarker approach that aims to inform both patients and clinicians of the current state of the affected gut lining (how inflamed or whether the bowel wall has completely healed). This new biomarker approach will study a panel of molecular signs in IBD patients' blood, stools and biopsies that will be correlated to the current gold standard of direct gut visual examination using ileo-colonoscopy and flexible sigmoidoscopy tests (a fibre-optic examination of the lower small bowel and large bowel). Here, the state and appearances of IBD patients' gut lining will be assessed over one year in response to treatment given to them by their NHS IBD consultant. This approach will focus on the role of damage associated molecular patterns (DAMPs), also known as 'danger signals'. DAMPs are found in our own cells and are released during tissue stress or injury. Like signals from bacteria, they can trigger inflammation. In the MUSIC study, blood, stool, saliva and gut samples obtained from participants during active IBD and in clinical remission will be used in order to understand how DAMPs contribute to the development of gut inflammation.
Anti-Inflammatory Effects of Time-Restricted Feeding
PsoriasisSystemic InflammationBackground: Time-restricted feeding (TRF) means that a person eats only during certain hours of the day. In other studies, researchers have found that fasting can improve immune system function in healthy people. They want to see if TRF has the same effect on people with psoriasis. Objective: To test whether TRF can change metabolism and decrease some markers of inflammation in the blood of people with mild to moderate psoriasis. Eligibility: Males ages 18 to 80 with mild to moderate active psoriasis, and healthy volunteers Design: Participants will be screened with a medical history and medicine review. They will have a physical exam and blood tests. Their skin will be examined. They will have a nutritional evaluation. Their resting energy expenditure will be measured. For this, a clear plastic ventilation hood will be placed over the head for a short time. Participants will stay at the NIH Clinical Center for 4 1/2 days. They can watch TV, do work, do schoolwork, and other quiet activities. A small sensor will be placed under participants skin to measure blood glucose. For part of the study, participants will be housed in a small room called a metabolic chamber. They will wear a heart monitor. Participants will walk on a treadmill for 30 minutes each day at a comfortable speed. For 3 days, participants will eat all their daily calories between 8 am and 2 pm. They will fast for the other 18 hours of the day. They can drink water. Participants will complete mixed meal tests. They will drink a liquid meal for breakfast. Then they will give blood samples via intravenous (IV) catheter. Participation will last for 5 days....
Toxins Removal and Inflammatory State modulAtion During Online Hemodiafiltration: Comparison of...
Hemodialysis ComplicationInflammation1 moreThe primary goal of the study is to evaluate in patients on three times a week on-line HDF the efficacy, in terms of toxin removal and modulation of the inflammatory state, of two different dialyzers: Helixone versus Asimmetric cellulose triacetate (ATA).
Inflammation and Protein Restriction
Protein RestrictionDiet1 moreThere is strong scientific data that supports that short-term protein restrictive diets reduce surgical stress responses. The investigators are hoping to use the information collected from the blood serum and muscle tissue of healthy subjects to help understand the baseline and early changes in muscle energetic and cell-mediated inflammation. The study team hopes to use the data collected in this pilot study to compare with patients undergoing open abdominal aortic aneurysm (AAA) repair in a future study
Relationship of Inflammation and Pulmonary Function to Fungal Translocation in HIV
HIV InfectionsInflammation1 moreThe investigator will study the origin of fungal translocation in HIV, its relationship to the mycobiome, and its relationship to lung function and inflammation. Supported by the preliminary data and published studies, this project is based on the premise that circulating BDG derived from microbial translocation stimulates inflammation and worsens lung function in PWH. Chronic obstructive pulmonary disease (COPD) is a significant public health problem with few therapies that modify disease trajectory. COPD is a leading cause of mortality in the United States associated with increased morbidity and healthcare costs. Long-acting bronchodilators and inhaled corticosteroids are mainstays of therapy that control symptoms and reduce acute exacerbation frequency, but do not have a significant impact on mortality or lung function trajectory. The National Heart, Lung, and Blood Institute's COPD National Action Plan focuses on the critical need for research to characterize COPD risk factors and disease mechanisms in order to improve the understanding of causes and progression of disease. The ultimate goal is to provide precision therapy to appropriate patient subgroups to preserve health or arrest disease progression. Microbial organisms in the gut may have a profound effect on lung disease. The role of the gut-lung axis, defined as the cross-talk between gut microbiota and the lungs, in the pathogenesis of chronic respiratory diseases is emerging as an area of interest. Perturbations of gut microbiota characterized by low microbial diversity and changes in microbiota abundance are linked to childhood asthma risk, airflow obstruction in adult asthma, and severe lung dysfunction in cystic fibrosis. Studies in animals show that both a high fiber diet that modulates gut microbiota and an abundance of beneficial bacterial strains attenuate inflammation, emphysema, and COPD development in response to cigarette smoke exposure in murine models. In humans, recent investigations show differences in the gut microbial communities between COPD patients and healthy individuals as well as shifts in the gut microbiome with acute exacerbations of COPD.
Effect of Blueberries on Immunity and Response to Flu Vaccination
Immune ResponseInflammationThis research study will test the effects of almonds on immune functions and immune response to influenza vaccine in overweight older men and postmenopausal women
Time-restricted Feeding to Reduce Inflammation in Fanconi Anemia
Fanconi AnemiaThe main reason for this research study is to determine whether time-restricted eating will reduce inflammation in the bodies of persons with Fanconi anemia (FA) and whether time-restricted eating will improve function in people with FA and neurological changes. Participants will be asked to eat for only 8 hours out of 24 hours in a day.
Pilot Study of the Predictive Value of TREM1 Expression and Activation in Inflammation and Radio-induced...
Radiation ToxicityFibrosis1 moreBreast cancer is the most common cancer in the world. Half of patients with such cancer are treated with radiation therapy. Some patients will develop cutaneous or subcutaneous fibrosis, more or less bothersome. Several studies have shown a correlation between an inflammatory reaction and a protein, called TREM-1. But to date, no link has been proven between TREM-1 and inflammation / fibrosis in the phenomena of fibrosis induced by radiotherapy in patients with breast cancer. Our study aims to understand the involvement of this TREM-1 protein in the development of fibrosis or radio-epidermis in patients with breast cancer.
Maternal & Offspring Microbiome Study
Pregnancy RelatedMicrobiome2 moreThe purpose of the study is to learn how different dietary interventions affect microbiota diversity in pregnant women and the transmission of microbiota to their infants during pregnancy, birth, and postpartum.
Cardiovascular Structure and Function in the Mucopolysaccharidoses
MucopolysaccharidosesCarotid Disease2 moreThis study's investigators previously demonstrated the potential utility of non-invasive carotid ultrasonography to calculate carotid intima media thickness (cIMT) and stiffness (as measured by the three parameters, carotid cross-sectional distensibility [cCSD], carotid cross-sectional compliance [cCSC], and carotid incremental elastic modulus [cIEM]) in people with mucopolysaccharidoses (MPS). Investigators also studied arterial gene expression in animal models of MPS, and identified upregulation of a number of markers potentially tied to atherosclerosis and inflammation. These include the atherosclerotic marker known as Clusterin (CLU), Cathepsin S, Elastin, and the inflammatory cytokines interleukin 1-α, interleukin 1-β, interleukin 2, and interleukin 6. Other studies have identified elevation in circulating tumor necrosis factor-α correlating with pain and physical disability in certain mucopolysaccharidoses. Since these studies are cross sectional, and not longitudinal, this study aims to annually measure these previously studied biomarkers (carotid measurements, circulating cytokines, cathepsin S, elastin, and CLU) in a large cohort of MPS patients. This study is a 3-year, prospective, anonymized, longitudinal assessment of cardiovascular structure, function, and circulating biomarkers in patients with mucopolysaccharidoses.