View clinical trials related to Telomere Shortening.
Filter by: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 Retrospective data (unpublished) on patients treated in France have shown more side effects and more frequent treatment interruptions and eventually weaker haematological response rate.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.
The study is a randomized controlled trial of a cognitive behavioral interventions and an art-based stress reduction treatment protocol (CB-ART) with 100 women, identified with elevated perceived stress, before undergoing IVF treatment; in order to examine its effect on perceived stress, plasma CFD, telomere length and pregnancy rates. CB-ART is a 6-session treatment protocol that has been utilized with women coping with stress, depression and pain and is effective in reducing these indicators, developed and evaluated by our research team. The treatment protocol emphasizes processing together with the client's recalled image, symptom or memory (ISM) pertaining to a current distressing mental or physical state. CB-ART is a multi-method model that integrates cognitive behavioral interventions and art-based stress reduction interventions. The innovation in this method is the transformation of imagined and drawn images and memories rather than solely verbally discussing their contents. The focus is on changing compositional elements that comprise each image and memory, thus providing a therapeutic venue to reframe and transform stress producing, recalled images and memories and reduce symptoms of perceived stress. Art making is beneficial for eliciting an emotional response and provides a concrete platform to conduct the cognitive processing that initiate change on the paper and then in the mind. Furthermore, the soothing qualities of interacting with art making foster and enhance behavioral relaxation techniques. Our study population, women with infertility problems, who are designated to undergo IVF treatment and have been identified to have elevated perceived stress scores on the Perceived Stress Scale (above 15) will be randomized and allocated to receive the CB-ART intervention tailored to reduce stress or treatment as usual.
The goal of the research is to provide a first critical test of the novel scientific idea that a combined diet and exercise intervention may ameliorate shortening of leukocyte telomere length (LTL) in individuals with histories of successfully treated non-metastatic bladder cancer (BC) or colorectal adenoma (CRA) compared to a diet only intervention.
The purpose of this study is to explore the differences in quality of life , inflammation, stress, telomere length, and mucosal immune function of Hispanic and non-Hispanic caregivers of persons with Alzheimer's disease and related dementias (ADRD). The caregivers will complete the Stress-Busting Program for Family Caregivers in the language of their choice (English or Spanish).
Coronary heart disease (CHD) is one of the diseases characterised by biological aging as one of the important risk factors in several epidemiological studies. The mean telomere length and telomerase activity serve as markers for the biological age at the cellular level, with shorter telomeres and lower telomerase activity defining the increased biological age. Telomere length and telomerase activity, therefore, correlates with the risk of CHD and atherosclerosis. A present study states that the treatment with a statin is associated with a reduction in the number of clinical events but only in individuals with increased risk based on their telomere length. This suggests a positive relationship of telomere and telomerase system with the treatment with statins in CHD patients.
Decrease in blood cell counts due to deficient bone marrow function, called bone marrow failure, as well as some lung diseases, called idiopathic pulmonary fibrosis, can be caused by genetic defects in telomere biology genes, eventually causing telomere erosion. These disorders are collectively termed "telomeropathies". There is evidence that male hormones may improve blood cell counts in marrow failure, and these hormones are able to stimulate telomerase function in hematopoietic cells in vitro. We propose this study to the use of male hormone in patients with aplastic anemia and pulmonary fibrosis associated with defects in telomeres.