View clinical trials related to Genetic Disease.
Filter by:The project is focused on the detailed study of structural genomic variants (SVs). Such genetic mutations are in fact alterations in the DNA molecule structure and include copy number variants, inversions and translocations. A single event may affect many genes as well as regulatory regions and the specific phenotypic consequences will depend on the location, genetic content and type of SV. Many times, the specific disease-causing mechanism is not known. Here, we plan to study the molecular genetic behavior of structural variants as well as the underlying mutational mechanisms involved. First, we will use genome sequencing to pinpoint the chromosomal breakpoints at the nucleotide level, characterize the genomic architecture at the breakpoints and study the relationship between structural variants and SNVs. Second, we will study how structural variants impact gene expression. Finally, we will functionally explore the disease mechanisms in vivo using zebrafish and in vitro using primary patient cells and induced pluripotent stem cells. Our studies will focus on the origin, structure and impact of structural variation on human disease. The results will directly lead to a higher mutation detection rate in genetic diagnostics. Through a better understanding of disease mechanisms our findings will also assist in the development of novel biomarkers and therapeutic strategies for patients with rare genetic disorders.
Neurogenetic diseases (NGD) represent rare and hereditary forms of neurological diseases. The goal of CNGD is to create a one-window approach for NGDs, to facilitate and accelerate participation in research projects through deep phenotyping and the availability of low-cost biological samples for research teams. It is positioned as a true hub allowing new connections between clinical and basic research teams and ultimately as an incubator for translational projects for NGDs, in order to be able to initiate therapeutic trials, the ultimate objective of clinical and translational research.
Infertile women attending for PGT at the Centre of Assisted Reproduction and Embryology, Queen Mary Hospital and Kwong Wah Hospital will be recruited during ovarian stimulation for IVF. Subsequently, they will be randomly assigned on the day of oocyte retrieval by a laboratory staff into one of the following two groups in a 1:1 ratio : (1) the microfluidic chip group and (2) the density gradient centrifugation group for sperm preparation and subsequent use in fertilization. Other IVF procedures will be the same as the standard practice of the Centre. Both women and clinicians will be blinded from the group allocation i.e. a double blind study.
This monocentric retrospective observational study aims to evaluate the efficacy of pre-implantation genetic testing for monogenic diseases (PGT-M). The effectiveness will be assessed in terms of live birth rate (LBR), cumulative live birth rate (CLBR) per couple, and abortion rate (AR). Considering how many cycles the participants have undergone to achieve a viable blastocyst. The secondary objective is to evaluate the incidence of aneuploidy in unaffected embryos, in order to understand the need for pre-implantation genetic testing for aneuploidy (PGT-A)in addition to PGT-M.
In mainland France, breast cancer is the most common cancer in women, with an estimated incidence of over 58,000 new cases. Even if breast cancer is a cancer with a good prognosis, it is responsible for more than 12,000 deaths per year (first cause of death by cancer in women in France). Breast cancer is a multifactorial disease, which results from the interaction between environmental, lifestyle, hormonal and genetic risk factors. In Reunion, more than 400 cases of breast cancer are diagnosed annually. As in mainland France, it is by far the most common cancer in Reunionese women, and its incidence continues to increase significantly since the age-standardized incidence rate increased by 28% between 2007 and 2017 to establish at 64.2/100,000 AP. Two studies carried out in patients carrying mutations in the breast-ovary predisposition genes in Reunion, showed that more than 50% of patients carrying BRCA mutation have a mutation specific to the Reunion population on the BRCA2 gene. These two studies, which confirm the genetic specificities of Reunion already described in other pathologies (Mucoviscidosis or Friedreich's Ataxia), suggest that this mutation could have a significant frequency in patients with breast cancer. Thus, evaluating the prevalence of this mutation in patients with breast cancer in Réunion would make it possible to adapt the indications for access to the oncogenetics consultation and the associated preventive measures
This study uses medical records that allow retrospective data extraction of clinical manifestation to assess the natural history of HPDL mutations
This study collects data on children with severe, early-onset obesity.
The aim of this clinical study is the evaluation of clinical performance of a cell-based non-invasive test technology for fetal aneuploidies and segmental imbalances detection in a high-risk pregnancies population.
It is estimated that 1 in 4 pregnancies end in loss, be these early miscarriages, ectopic pregnancies, or later intrauterine losses for any reason. Genomics is a major part of pregnancy loss, and clinicians want to offer the best and most appropriate test available to women and their families, whilst ensuring that there is equity in the access to this testing, so that no family goes through a loss without the right support and information. Whilst there is limited information to inform professionals as to how to incorporate genomics into bereavement care there is a need to identify current expert consensus as to how this should be performed, in order to make recommendations for best practice.
Patients with neurodevelopmental diseases and their families need to identify the genetic cause of the disease to allow for recognition of the disability, genetic counseling, and possible hope for participation in therapeutic research studies. Access to high-throughput genomic exome or genome analysis allows the identification of a genetic cause for approximately half of the patients. However, families with no result or with a variant of unknown significance after these tests may find themselves in a new diagnostic impasse. The high-throughput sequencing used today generates sequences of the order of 100 base pairs (so-called "short read" sequencing). This allows an analysis of about 90% of the genome. However, many regions are not accessible in regions of interest for the genetic diagnosis of rare diseases. Long fragment sequencing generates sequences that are about 20 times larger and its use has recently made it possible to sequence the human genome almost completely (https://www.science.org/doi/10.1126/science.abj6987). The main contribution lies in the analysis of complex regions of the genome such as segmental duplications or centromeric regions. It is likely that this technology increases the sensitivity of detection of genetic variants in patients with genetic diseases. Its contribution should be studied in patients for whom no genetic cause has been identified by classical techniques. This study aim to investigate the contribution of long fragment genome sequencing.