View clinical trials related to Genetic Diseases, Inborn.
Filter by:Cerebellar ataxia is a pathology linked to the lesion of the cerebellum or the afferent and/or efferent cerebellar pathways. The aetiology can be an acquired cerebral lesion, following a chemical poisoning or a genetic degenerative lesion (for example : Friedreich's ataxia, spinocerebellar ataxias, etc.). As reported by the latest estimate available, genetic degenerative cerebellar ataxias affect approximately 6,000 patients in France (Orpha.net). Symptoms suffered by ataxic patients are : problems and gait disorders along with difficulties in coordination resulting in ataxia, uncoordinated movements. These symptoms cause a decrease in the quality of life on patients with spinocerebellar ataxia. The symptoms improvement linked to the cerebellar syndrome is based on rehabilitation that can be supplemented by use of technical aids. Current scientific knowledge confirms that intensive rehabilitation by physiotherapy and occupational therapy in patients with degenerative ataxias improves cerebellar symptoms. Nevertheless, the choice rehabilitation technique stay at the appreciation of the therapist. From the observation, the investigators have designed an intensive multidisciplinary rehabilitation program, called PAMPERO, with partner patients member of two genetic degenerative ataxia patient organisations. This 5-weeks program has been used in clinic during 3 years on 28 patients. It appears to be the only one in France. The preliminary results show a positive effect on ataxia symptom. Nevertheless, the duration of the benefice over time and the effect on the quality of life stay unknown. However, the quality of life is mainly affected by the participation restriction due to the risk of falling. The most frequent complaint from partner patient is the diminution of the social interaction resulting of the incapacity to move without risk. The present protocol aimed at evaluating the Rehabilitation Program in collaboration with partner patient on the symptom intensity, activity and quality of life on genetic and degenerative ataxia. This PAMPERO program's effect will be assessed by comparing the difference of Intensity of symptom measured by to Scale for the Assessment and Rating of Ataxia (SARA) at inclusion and 3 months after the end of rehabilitation.
Genomic methods can significantly contribute to all facets of precision medicine, from diagnosis to prevention, therapeutic intervention, and management of acute and chronic illnesses. DNA based methods are already having a considerable impact across healthcare in fields that include: public health, infectious disease monitoring, acute and chronic disease, pharmacogenomics, prenatal testing and diagnosis, and therapeutic development. In this proposal, investigators are focusing on the application of genomic methods in precision medicine - specifically on rapid whole-genome sequencing of parents and children (i.e. a trio) for the identification of diseases that have genetic components. Goals Primary goal: is to provide safe rapid whole genome sequencing to Neonatal Intensive Care Unit/Pediatric Intensive Care Unit patients. Secondary goals: 1) Although several groups globally are implementing rapid sequencing of rare disease, these are predominantly in the research space, with many unanswered questions regarding the best way to implement them into a national healthcare system. Each country and their healthcare systems are unique, and valuable knowledge will be gained by implementing this process within a New Zealand context. As part of this the study will measure the impact on the individuals and families. 2) to expand the research team's understanding of non-coding disease-causing variants and methylation changes that contribute to severe disease in early life. Primary Aims 1. To incorporate long-read RNA sequencing data into the diagnostic rapid Whole Genome Sequencing pipeline to provide a direct measure of the functional outcome of the variants of clinical concern. 2. To measure the clinical utility of analysing non-coding variants in the diagnosis of critically ill children who do not have pathogenic, likely pathogenic, or variants of unknown significance for mendelian disorders. 3. To identify, in a real-world setting within the New Zealand health-care system, the clinical and economic effects of deploying rapid Whole Genome Sequencing-informed rapid precision medicine for critically ill children.
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.
Sudden infant death syndrome (SIDS) is a disease of an infant under one year of age, whose sudden death occurred unexpectedly, which the cause of death cannot be determined despite macro-autopsy, and toxicological, pathological and microbiological examinations. It is most common in babies aged 2-4 months. Although it cannot be attributed to a single cause, it is suggested that apnea/airway obstruction, abuse, developmental disorders, exposure to cigarette smoke, infections, toxic gases, metabolic diseases, and cardiac problems cause SIDS. It is known that genetic studies on SIDS are few and the literature reported so far is insufficient. On the other hand, as a result of rapid developments in genetic diagnosis methods, various genes associated with SIDS have been reported in recent studies. Most of the studies conducted include genetic studies aimed at investigating specific disease groups in SIDS. Although there are few studies on comprehensive investigation of genetic causes, potentially causative variants have been identified in 20% of cases where whole exome sequencing has been performed. In a study including perinatal deaths in which the reports of the Forensic Medicine Institute in our country were examined, 4% of the cases were reported as infant deaths of unknown cause. However, this study is only autopsy data and does not include metabolic and genetic examinations. For this reason, as far as we know, there is no information about the incidence of SIDS in our country. Based on this information, in our research, in the province of Ankara, the deaths of children under one year of age who died unexpectedly and suddenly were examined, autopsied, and toxicological examinations were performed on internal organ samples and body fluids taken during the autopsy by the Ankara Group Presidency of the Forensic Medicine Institute between 2018 and 2023. Genetic investigation of hereditary diseases that may lead to death of cases whose cause of death cannot be explained despite pathological and microbiological examinations will be carried out by the Whole Exome Sequencing (WES) method. The project will be carried out by researchers at Ankara University Faculty of Medicine and Forensic Medicine Institute Ankara Group Presidency. This research project was planned as a prospective, descriptive, open uncontrolled study. The duration of the project is foreseen as 12 months. Approval for our research was received from Ankara University
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
Genetic Epidemiology : is quickly expanding research field concerned with considerate the heritable aspect of disease risk, individual propensity to disease and eventually with contributing to a complete molecular understanding of pathogenesis. Genetics : is the scientific study of genes &heredity of how certain qualities or traits are passed from parents to offspring as a result of changes in DNA sequence . A gene is a segment of DNA that contains instructions for building of one or more molecules Genetic disorders: is a health problem caused by one or more abnormalities in the genome. It can be caused by a mutation in a single gene (monogenic) or multiple genes (polygenic) or by a chromosomal abnormality. (1)mutations: affect the human genes either inherited from one or both parents or due to certain environmental factors Four of the main types include:(1)Single _gene inheritance diseases :Single gene inheritance diseases are diseases that occur because one defective gene is present. They are known as monogenetic disorders.(EX:Marfan Syndrome ) (2)Multifactorial genetic inheritance disorders : Genetic disorders may also be complex, , meaning they are likely associated with the effects of multiple genes in combination with lifestyles and environmental factors. Multifactorial disorders include heart disease and diabetes. (3)chromosomal abnormalities : result from a problem with cell division and arise because of duplications or absences of entire chromosomes or pieces of chromosomes. Examples of chromosome abnormality disorders include(Down sydrome ) (4)Mitochondrial genetic inheritance disorders : are caused by mutations in the DNA of mitochondria, small particles within cell. Mitochondrial DNA is always inherited from the female parent since egg cells (unlike sperm cells) keep their mitochondrial DNA during the process of fertilization. Environmental Factors: called (mutagens)which can lead to genetic mutations Such as Chemical exposure , Radiation exposure , Smoking , UV rays exposure from the sun prognosis Of genetic disorders: Not all genetic disorders directly result in death, there are no known cures for genetic disorders. Many genetic disorders affect stages of development, such as Down syndrome, while others result in purely physical symptoms such as muscular dystrophy. Other disorders, such as Huntington's disease, show no signs until adulthood. .Treatment of genetic disorders: The treatment of genetic disorders is an ongoing battle, with over 1,800 gene therapy clinical trials having been completed, are ongoing, or have been approved worldwide, Despite this, most treatment options revolve around treating the symptoms of the disorders in an attempt to improve patient quality of life. Diagnosis of genetic disorders: (1)personal medical history :information about an individual health often going back to birth can provide clues to a genetic diagnosis (2)physical examination :certain physical characteristics , such as distinctive facial features can suggest the diagnosis of a genetic disorder , a geneticist will do a through physical Examination that may include measurements such as head circumference and so on . (3) Family health history :because genetic conditions often run in families , information about the health of family members can be a critical tool for diagnosing these disorders . (4)Laboratory Tests :including genetic testing , molecular , chromosomal , and biochemical genetic or genomic testing are used to diagnose genetic disorders. Genetic counselling is a communication process, which aims to help individuals, couples and families understand and adapt to the medical, psychological, familial and reproductive implications of the genetic contribution to specific health conditions. Patients With History Of TORCH: Bad Obstetric history (BOH) implies previous unfavorable foetal outcome in terms of two or more consecutive spontaneous abortion, history of intrauterine foetal death, intrauterine growth retardation, still births, early neonatal death and/or congenital anomalies. Cause of BOH may be genetic, hormonal, abnormal maternal immune response and maternal infection.
This study uses medical records that allow retrospective data extraction of clinical manifestation to assess the natural history of HPDL mutations