View clinical trials related to Genetic Polymorphism.
Filter by:This is a multicentric prospective cohort of all stage melanoma patients from AP-HP ,the largest consortium of University hospitals over Europe. 7 investigation sites (7 dermatological services of AP-HP) in Ile de France region are involved. 1300 patients will be enrolled and be followed during 10 years.
Age related macular degeneration (AMD) is a multifactorial disease with a strong genetic component. Most importantly a genetic polymorphism in the gene encoding for the complement factor H (CFH) has been recently identified which is highly associated with an increased risk of developing AMD. This Tyr402His polymorphism located on chromosome 1q31 has been implicated to play a role in the development of the disease. Given that it is known that impaired regulation of choroidal vascular tone is present in patients with AMD, the current study seeks to investigate whether the Tyr402His polymorphism is associated with altered choroidal autoregulation in healthy subjects. For this purpose a total of 100 healthy volunteers will be included in order to test the hypothesis that an impaired regulation of choroidal blood flow is present in subjects with homozygous Tyr402His variant.
Heme oxygenase 1 (HO-1) serves as a protective gene. It has been shown that one factor modulating HO-1 activity is a genetic variation in the HO-1 gene (functional GT length polymorphism in the promotor region). Heme arginate is a strong inducer of HO-1 as shown in several animal experimental studies. The aim of this clinical trial is to evaluate the HO-1 stimulation of heme arginate in healthy humans.
Background: Satraplatin is an experimental drug that may be of benefit to patients with prostate cancer. Prednisone is approved for treating prostate cancer. The gene excision repair cross-complementing rodent repair deficiency complementation group 1 (ERCC1) helps repair cell damage caused by satraplatin. It is possible that patients who have a variant of this gene will not benefit from treatment with satraplatin because the drug will not be able to damage the cancer cells effectively. Objectives: To determine if satraplatin may help treat prostate cancer in patients with certain variants of the ERCC1 gene. Eligibility: Patients with advanced androgen-independent prostate cancer whose disease has not responded to hormonal therapy or at least one type of chemotherapy and whose x-rays, scans or other tests have shown their cancer to be spreading. Design: Participants have a blood test to determine if they have a variant of the ERCC1 gene. Participants take satraplatin by mouth every day for 5 consecutive days out of every 35 days and prednisone by mouth every day. These 35-day treatment cycles may continue for 6 months or longer, depending on the benefits and side effects of the treatment. During the treatment period, patients undergo the following tests and procedures: - Blood tests on days 1 of the treatment cycle. - Weekly blood draws for the first 3 treatment cycles. - Imaging studies (e.g., bone scans, computed tomography (CT) scans) every two cycles to determine the response to treatment. - Surgical or medical suppression of testosterone in patients whose cancer cells continue to grow due to exposure to the hormone....
This study will begin to define these critical determinants for patients undergoing procedures in the hybrid interventional cardiology/cardiac surgery suite. In future studies, the data obtained from this study will be used to prospectively stratify patients in terms of bleeding verses thrombotic risk to design studies to optimize anticoagulation and anti-platelet therapies in the hybrid setting.
Azathioprine (AZA) has long been used in dermatology in treating autoimmune bullous dermatoses and generalized eczematous disorders as well as some photodermatoses. Its metabolic process inside human body and its side effects relies on genetic polymorphism of some enzymes such as thiopurine s-methyltransferase (TPMT) and inosine triphosphate pyrophosphatase gene (ITPA). This study aims to analyze the relative contribution of TMPT and ITPA mutations to the development of toxicity induced by AZA treatment and to detect the correlation of the genetic polymorphism.