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The investigative team will conduct a population-based, matched retrospective cohort study across Ontario, Alberta, and British Columbia using linked administrative healthcare databases to evaluate the long-term risk of major adverse cardiovascular events (MACE) among living kidn…

This population-based, matched, retrospective cohort study will evaluate the long-term risk of gout among living kidney donors compared with matched healthy nondonors, using linked administrative health care databases from Ontario, Alberta, and British Columbia. Living kidney don…

Using a population-based, matched, retrospective cohort approach, this study will evaluate the long-term risk of kidney stones among living kidney donors compared with matched healthy nondonors. Linked administrative health care databases from Ontario, Alberta, and British Columb…

Kidney diseases related to the immune system include, nephrotic syndrome, glomerulonephritis, membranous nephropathy, lupus nephritis, and nephritis associated with connective tissue disorders. This study will allow researchers to admit and follow patients suffering from autoimm…

The proposed study aims to evaluate, investigate, and follow-up patients suffering from acute and chronic liver disease. The study will focus on understanding diseases affecting the liver. Patients participating in the study will first undergo a routine check-up as an outpatient…

This protocol concerns the approach to the localization, diagnosis of MEN1 and management of the tumor and the tissue samples in patients with Zollinger-Ellison syndrome. It details the diagnostic imaging tests to be used to localize the tumor, investigations for MEN1 the subsequ…

Hypoglycemia is the term used to refer to lower than normal levels of blood sugar. This study will continue to research the causes of hypoglycemia. Patients involved in the study will be admitted to the Clinical Center of the National Institutes of Health and undergo tests for e…

This study will evaluate hepatitis C virus (HCV) infection in blood donors who test positive for antibodies to this virus. Most HCV-infected people do not become ill and are not aware that they have hepatitis or have had it in the past. Some infected people recover completely, wh…

The objective of this observatory is to provide a national database of infective endocarditis, informed by all volunteer centers, using a standardized case report forms. Such an observatory will describe the clinical profile, microbiological, therapeutic and evolving of infectiv…

We will investigate the clinical manifestations and molecular genetic defects of heritable urologic malignant disorders. Families with urologic malignancy with known or suspected genetic basis will be enrolled. Affected individuals or individuals suspected of having a germline ur…

Magnetic Resonance Imaging (MRI) unlike X-rays and CT-scans does not use radiation to create a picture. MRI use as the name implies, magnetism to create pictures with excellent anatomical resolution. Functional MRIs are diagnostic tests that allow doctors to not only view anatomy…

The French E3N cohort was initiated in 1990 to investigate the risk factors associated with cancer and other major non-communicable diseases in women. The participants were insured through a national health system that primarily covered teachers, and were enrolled from 1990 afte…

The Genitourinary Oncology/Urology Services at Memorial Sloan-Kettering Cancer Center (MSKCC) participates in research for the control, treatment, and cure of cancer. The purpose of this study is to collect normal and cancerous tissues, in addition to blood, and other body fluid …

This study aims to understand the causes and progression of Common Variable Immunodeficiency (CVID) and related inborn errors of immunity (IEI). These are conditions where the immune system does not function properly, leading to frequent infections and other complications such as…

Well-designed observational studies of individuals with rare tumors are needed to improve patient care, clinical investigations, and the education of healthcare professionals. The patterns of care, outcomes, and prognostic factors of a cohort of 2225 patients with metastatic sof…

A database of breast cancer patients was established at Institute Bergonié since the 90s , to assess patients' survival, assess practice, search for prognostic factors.

Using data from the Global Burden of Disease Study 2021, the investigators analyzed age-standardized incidence, mortality, and disability-adjusted life-years (DALYs) for pancreatic cancer and pancreatitis in adults aged ≥70 years across 204 countries and territories, stratified b…

Gastro intestinal stromal tumors (GIST) are rare mesenchymal tumors of the gastrointestinal tract characterized by somatic mutations in the gene encoding the KIT or the PDGFR alpha protein1. Treatment of localized forms relies on adequate surgery without tumor spillage and system…

The overall goal of this project is to develop an integrative system of breast cancer risk assessment based on epidemiologic and biologic risk variables, as well as to develop or refine risk biomarkers which may be useful in predicting and monitoring response to prevention interv…

The purpose of this study is to investigate mood and behavior changes in the time period surrounding and including menopause. This is an observational study; volunteers who participate will not receive any new or experimental therapies. Controversy exists regarding the relations…