View clinical trials related to Telomere Shortening.
Filter by:Randomised clinical trial on a cohort of subjects with a diagnosis of schizophrenia of legal age, of both sexes, recruited in the mental health clinics of the Salamanca University Assistance Complex and who will be randomly distributed into two groups (intervention and control). The main objective of the study is to determine the effect of physical exercise on telomere size in patients diagnosed with schizophrenia. As secondary objectives in this group of patients we will try to: Evaluate the influence of strength training on cognition and negative symptoms of schizophrenia. To quantify the impact of strength training on frailty. To determine the effect of strength training on quality of life. To study the possible correlation between physical parameters (frailty) and telomere length. To establish the importance of polymorphisms in telomerase genes, an enzyme involved in the maintenance of telomere length.
The goal of this clinical trial is to test whether activation of telomerase with a dietary supplement (TA-65) improves microvascular function.
Constitutional mutations of genes involved in telomere repair and maintenance are responsible for "telomeropathy" (" Congenital Dyskeratosis "). Attrition of telomeres promotes cell senescence and genetic instability. The penetrance and severity of organ damage (pulmonary, hematological, liver, and neurological) is variable, depending on the gene involved, the generation concerned (anticipation phenomenon) and also environmental factors. In cases of bone marrow failure, the only curative treatment is hematopoietic stem cell transplant, often limited by pulmonary and / or hepatic involvement or the absence of a suitable HLA match donor. The pulmonary phenotype is most often that of idiopathic pulmonary fibrosis. In severe forms, a lung transplant is proposed in the absence of contraindications. Anti-fibrotic treatments are not very effective or not evaluated. The observed decrease in the vital capacity of these patients is 300 ml / year, abnormally high compared to idiopathic forms. Evolution without transplant is in both situations rapidly unfavorable; the prognosis after lung or marrow transplant is also worse than that of similar transplants without telomeres disease. Danazol has been used for over 4 decades in acquired and constitutional bone marrow failure in the absence of a therapeutic alternative. In telomeropathy, retrospective data on small cohorts indicate a haematological response rate of 60-70%. A prospective study in the United States recently showed a haematological response at 1 year in 78% of cases (10 of 12 evaluable patients) with stabilization of vital capacity. Retrospective data (unpublished) on patients treated in France have shown more side effects and more frequent treatment interruptions and eventually weaker haematological response rate. This study aim to evaluate the benefit of danazol at 12 months on the clinical response.