Differential Gene Expression of Liver Tissue and Blood From Individuals With Chronic Viral Hepatitis...
Hepatitis CHepatitis B5 moreThe purpose of this research is to study body materials like blood proteins as well as white blood cell and liver cellular RNA in individuals with liver diseases such as chronic viral hepatitis with or without hepatoma and autoimmune liver disease. Presently it is not understood how infection with chronic viral hepatitis or autoimmune liver disease damages the liver. This research study enroll patients with either chronic viral hepatitis with or without hepatoma or autoimmune liver disease. The purpose of this study is to find the genes that are expressed in both the circulating white blood cells and the liver of patients with varying degrees of liver damage of different causes. Genes are biological messengers some of which determine how the body responds to injury. We anticipate that results from Differential Gene Expression (DGE) analysis will allow us to make predictions about likelihood of disease progression and/or response to treatment. In addition we will test the blood for markers of injury. The blood collected will be prepared differently from the liver tissue. We will use technologies to express pure proteins and then we will investigate the functions of these proteins. Nearly all drugs act on proteins, not genes, so understanding proteins is the key to really effective new medicines. Similarly the first signs of ill health appear in changes to the body's blood proteins, making them the most sensitive diagnostic indicators. The studies we plan are called proteomics. We will later correlate the patterns of gene expression in both circulating white blood cells and the liver tissue with clinical outcome and patterns of proteins measured in blood and we hope to gain an understanding of how the disease process occurs, which may in turn help us to make more precise diagnoses and develop new forms of treatment. These techniques that we use are still experimental and so we do not yet know if they will be helpful in monitoring changes which may help us to predict the potential severity of your liver disease or even if they can be used to indicate who will best respond to treatment.
Repeatability and Reproducibility of Multiparametric MRI
Liver DiseasesPrimary Biliary Cirrhosis7 moreThis study aims to prospectively assess the repeatability and reproducibility of iron-corrected T1 (cT1), T2*, and hepatic proton density fat fraction (PDFF) quantification with multiparametric MRI using the LiverMultiScan™ (LMS, Perspectum Diagnostics, Oxford, UK) protocol across different field strengths, scanner manufacturers and models.
Is Short Antibiotherapy Duration After Drainage Suitable for Patients Admitted in Intensive Care...
Acute CholangitisAcute cholangitis (AC) occurs when biliary stenosis, due to various benign causes (often gallstones) or the presence of a tumour, leads to cholestasis and biliary infection. AC is a life-threatening infection if not diagnosed and treated in time, its mortality ranges from 1.4% to 5.2%. AC can be classified into different stages of severity depending on organ failure. A severity classification has been proposed by the Asian recommendations of Tokyo 2013: Grade I (Benin), Grade II (Moderate) and Grade III (Severe). AC treatment includes endoscopic or percutaneous bile drainage in combination with systemic antibiotic treatment. It is currently recommended that patients with severe CA (Grade III) have biliary drainage within 24 hours, although it has not been shown to improve their survival. The emergence of antibiotic-resistant germs, which is a public health issue, calls for reasonable and considered use of antibiotics. Reducing the duration of antibiotic therapy is a fundamental measure of antimicrobial management and antibiotics sparing. 7 to 10 days of antibiotic treatment is common in the treatment of CA. A 14-day treatment is recommended in case of associated bacteremia. A recent study of 263 patients showed that reducing the duration of antibiotic therapy to less than 7 days in patients with CA associated with bacteremia with effective drainage does not increase the risk of recurrence or mortality at 30 days. However, this study was monocentric retrospective and compared groups that were unbalanced in terms of CA severity. The optimal duration of antibiotic therapy in the treatment of CA in critically ill patients hospitalized in intensive care remains poorly known. The main purpose of this study is to compare short antibiotic therapy with long antibiotic therapy in terms of mortality in patients with AC admitted in intensive care unit (ICU).
Paternally Inherited Phenotypes in Cholestasis
CholestasisPrimary Sclerosing Cholangitis1 moreFor some years investigators have known that the health of fathers at the time their baby is conceived has an influence on the health of their child in the future. Many studies looking at this effect have investigated fathers with obesity and other metabolic disorders. These disorders can alter the risk of obesity and diabetes in the children of these men. More recently, studies have been undertaken to establish the mechanism by which this risk is inherited by the children. Studies of sperm have identified that changes in the structure and function of the sperm play a role. Primary Sclerosing Cholangitis (PSC) and Primary Biliary Cholangitis (PBC) are included in a group of cholestatic liver disorders that are associated with elevated levels of bile acids in the blood (cholestasis). A previous study has established that children born to women who have cholestasis during pregnancy are at an increased risk of obesity later in life. Our study will investigate whether there is a similar effect on the health of children if their father has cholestasis. The study has 2 arms, the Sperm Epigenome arm and the Outcomes arm. In the Sperm Epigenome arm of the study, the structure and function of sperm from men with PSC, PBC and other cholestatic liver disorders will be investigated and compared to the structure and function of sperm from healthy men. In the Outcomes arm of the study, basic health parameters of fathers who had PSC, PBC or another cholestatic liver disease either before or after their child was conceived will be studied. Basic health parameters will also be studied in their child when the child is between 16 and 25 years of age.
Interventional Endoscopy Database for Pancreatico-biliary, Gastrointestinal and Esophageal Disorders...
Ampullary CancerDuodenal Cancer21 moreOur institution performs therapeutic ERCP (Endoscopic retrograde cholangiopancreatography ), Endoscopic Ultrasound (EUS) and Interventional Endoscopy in around 1000 patients a year. Procedures such as biliary and/or pancreatic sphincterotomy, stents placement (metallic or plastic) and removal for revision, cysts and pseudocysts drainage are conducted in patients suffering from pancreatico-biliary disorders, gastrointestinal disorders and esophageal disorders. The investigators would like to assess prospectively the efficacy and safety of these routine procedures to permit identification of technical details about the procedures or other factors which might be associated with outcome or results. Assessment of these details would help us with problem identification and recommendations to improve health outcomes and quality of life in these patients.
Factors Associated With Increased Risk of Bacteremia and Cholangitis in ERCP With Cholangioscopy...
CholangitisBacteremiaAn Endoscopic retrograde cholangio pancreatography (ERCP) with cholangioscopy (endoscope to directly visualize the bile duct ) is a procedure (a small flexible tube that is inserted into the participants mouth to the participants stomach and into the participants liver to visualize the bile duct) that is usually performed in patients for the following purposes : The removal of all stones from the participants bile duct (if present). Acquiring a tissue sample biopsy from any common bile mass to examine (if present). Acquiring tissue sample biopsy from common bile duct narrowing (if present). However this procedure is associated with an increase risk of infection compared with the standard ERCP (ERCP without cholangioscopy). Previous studies have shown that despite the administration of antibiotics prior to these procedures, infection still occurs. This leads to a suspicion that other factors may be the cause in these infections. Factors such as age, race, gender and ethnicity have not been fully explored yet. This study aims to examine these factors in addition to others in patients who are undergoing ERCP with cholangioscopy as part of their routine medical care. This examination will allow us to bring out if any of the above mentioned factors may be involved in the development of an infection after ERCP with cholangioscopy.
Linerixibat Compassionate Use for Cholestatic Pruritus Adult Patients With Primary Biliary Cholangitis...
PruritusThe goal of this compassionate use program is to provide a mechanism to supply linerixibat, on an individual named patient basis. This program is for treatment of individuals who have moderate/severe cholestatic pruritus associated to PBC who have failed available treatment options and are unable or do not qualify to participate in the linerixibat Phase III clinical studies.
Telomere Length and Other Parameters of Telomere Dysfunction in PSC and Colitis
Primary Sclerosing CholangitisInflammatory Bowel DiseasePSC is a chronic cholestatic disorder. The investigators intend to study some telomere parameters and telomere length in order to predict a premalignant state.
Microbial Analysis in Patients With Cholangitis
CholangitisTo identify the microbial profile in bile and blood for patients with cholangitis. To explore risk factors of cholangitis and outcomes in those patients
A Post-Authorisation Non-Interventional Observational of Patients in France With Primary Biliary...
Primary Biliary CholangitisPost-authorisation non-interventional observational study of patients with Primary Biliary Cholangitis who started Ocaliva® treatment between October 1st, 2016 and December 31, 2017.