View clinical trials related to Disease Susceptibility.
Filter by:The prevalence of H. pylori antibiotic resistance has reached an alarming level worldwide. Antibiotic stewardship programs should be urgently developed and implemented. However, H. pylori antimicrobial susceptibility testing (AST) is rarely offered, making local resistance patterns not easily available. Guideline-recommended empiric therapies (GR-ET) may no longer reliably achieve high cure rate in the era of increasing antibiotic resistance. susceptibility-guided tailored therapy (SG-TT) may be a good choice to solve this problem. The aims of this study are: 1. to compare the efficacy of SG-TT with GR-ET as rescue regimens for H. pylori eradication; 2. to compare the patient adherence and adverse effects of these treatment regimens; 3. to investigate factors that may influence H. pylori eradication by these treatment regimens.
Cerebral palsy (CP) is a major neurodevelopmental disorder with an estimated prevalence of approximately one in 500 children. It is characterised by permanent developmental disorders of movement and posture, responsible for activity limitations, caused by non-progressive damage to the brain of the fetus, newborn or infant during development. The neurobiological mechanisms involved in CP remain poorly understood, although the interruption of cerebral oxygen supply during pregnancy or at the time of delivery is classically considered to be the main factor causing neurodevelopmental sequelae. CP also occurs in full-term infants without a clearly identifiable etiology. Data from the literature suggest the existence of other pathophysiological processes than only acquired brain lesions related to pregnancy and delivery, such as genetic or epigenetic factors. According to some research teams, nearly one third of CP could have a genetic cause or could be favoured by genetic variants. Preliminary research has made significant progress in revealing unusual copy number variants and/or mutations in single genes in children with CP. Several of the identified genes are involved in neurodevelopment and neuronal connectivity. Nevertheless, the identification of these abnormalities in CP may contribute to a better understanding of the pathophysiology of this complex and multifactorial disorder. It could also shed new light on the analysis of medico-legal files and bring encouraging perspectives by targeting new therapeutic interventions. The main hypothesis is that a certain number of cerebral palsies are related to - or favoured by - genetic abnormalities that we will search for with genetic screening tests.
To assess antimicrobial resistance rates and minimal inhibitory concentrations in H. pylori isolated from patients with upper gastrointestinal disease with long-term period.
A total genotype risk score was generated based on the findings of previous research for non-contact injury, non-contact muscle injury, tendon injury, ligament injury, fracture injury and apophysitis injury. This score was then compared with the incidence of injury between those with high, medium and low risk scores for each injury. The influence of different rates of growth, stages of physical maturation and loading exposure were then also included in the risk model to see if any interaction effects could be observed between genetic risk score and susceptibility to injury in different categories of growth, maturation and loading exposure.
Magnetic susceptibility imaging is a magnetic resonance imaging (MRI) technique that uses the magnetic properties of tissues and the BOLD (blood oxygen level-dependent) effect. It allows a better visualization of venous structures and hemorrhagic lesions. These sequences are now used in clinical routine. The extreme sensitivity of these sequences to the oxy/deoxyhemoglobin ratio makes it possible to describe a new MRI semiology, particularly in the context of cerebral ischemia. The interest of the analysis of the venous network signal, which can reflect cerebral perfusion, has been reported. However, the influence of the hematocrit level on the signal of the venous network in magnetic susceptibility imaging has not been evaluated at present. It seems important to better define the influence of hematocrit level on the signal of the veins with this sequence to avoid potential diagnostic errors.
The overall goal of this study is to reduce breast cancer morbidity and mortality disparities among African American women by actively engaging family history as a tool to modify screening regimens and enhance communication between women and their providers. Therefore, this rationale is reflected the project title: "You cannot change your family history, but you can change what you do with it: A peer-based education program to reduce breast cancer risk in African American women" This study will develop and test an educational curriculum that highlights the importance of knowing family history and sharing it with health care providers. The curriculum will include tools to gather family history and discuss it with providers to guide the delivery of care. The investigators will assess the effectiveness of the curriculum in group and one-on-one settings and when delivered by a Patient Ambassador (peer train-the trainer model) or a researcher. The specific objectives of the study are to: Obj. 1: Develop a CBPR-based curriculum- using a community based participatory research (CBPR) approach, that highlights the importance of family history as a risk factor for breast cancer that includes tools to collect family history information and discuss it with providers to enable a family history based screening regimen. Obj. 2: Train Patient Ambassadors- Patient Ambassadors, women from the community who act as community messengers to deliver the curriculum. Obj. 3: Pilot Implementation and Extensive Evaluation of the Curriculum- Assess two modes of delivery, group vs one-on-one, and Peer Ambassadors vs. a researcher. Obj. 4: Dissemination- of the curricular products, implementation pilot results, and implementation guides for communities and practices- via publications and other channels in preparation for grant submits to enhance the program.
The study aims to investigate the effect of a long-term combined aerobic exercise and cognitive training program on cognitive function, daily function, psychosocial status, and neural plasticity in seniors with genetic susceptibility for Alzheimer's Disease.
The investigators primary objective is to identify genetic factors that may increase the risk of patients developing a periprosthetic joint infections (PJI) following total joint arthroplasty (TJA). The investigators hope that by identifying genetic predispositions we will be able to provide patient specific care pathways to prevent or minimize the risk for PJI.
Chronic Venous Disease (CVD) is a widespread clinical condition widely spread in the western countries that may negatively impact the quality of life (QoL) of affected patients. Chronic venous leg ulcers (CVLUs) are the most severe form of CVD, and several genetic and molecular alterations have been studied in order to understand the progression of CVD towards CLVUs. Chronic inflammation is a key element in CVLUs onset, and recently T helper 17 (Th-17) cells, a subtype of pro-inflammatory T helper (CD4+) cells defined by the production of a cytokine signature of which IL-17 represents the progenitor, seem to be related to several chronic disease. The aim of this study is to evaluate Th17- Gene Expression profile in patients with CVD and CVLUs.
In recent years, returning genetic results to research participants has become a topic of debate, with a growing consensus that researchers should offer to return incidental findings and research results to participants. Currently, the research and debates surrounding return of results (ROR) have primarily taken place in high-income countries. Less attention has been paid to ROR in lower-resource countries. However, research participants in these settings may have additional threats, barriers, and/or competing interests that reduce the benefit or relevance of receiving genetic results. Arsenic is a toxic metal. Exposure to arsenic increases a person's risk for cancer, especially in the lung, kidney, bladder and skin. Many people in Bangladesh are exposed to elevated environmental levels of arsenic through naturally contaminated drinking water. People who metabolize arsenic (remove it from their body) slower compared to people who metabolize arsenic more efficiently are at higher risk for arsenic toxicities (e.g. cancer). The investigators have designed a study in which they plan to enroll individuals who have had consistently high urine As levels (≥200 µg/g creatinine) based on 15-20 years of follow-up data. The treatment and control groups will be selected based on genotype (i.e. inefficient and efficient As metabolizers, respectively), allowing for the selection of the groups to be quasi-random (based on inherited genotypes). A standard informational intervention will be provided to both the treatment and controls groups, reminding them of the effects of As exposure and strategies to reduce their exposure. The research question is whether the treatment group will, have a larger decrease in urine arsenic levels compared to the control group, indicating that the ROR intervention caused a change in water-seeking behavior leading to lower arsenic exposure.