View clinical trials related to Inflammation.
Filter by:Immunological toxicities associated with immune checkpoint inhibitor (ICI) monoclonal antibodies are unpredictable autoimmune and inflammatory pathologies that can affect all treated patients. Some of these events are severe and occur in 15-20% of patients treated with Programmed Death 1 (PD-1) antibodies. The study of cellular immunological characteristics within tissues affected by toxicities and the interactions between the different actors of these toxicities aims at improving the knowledge concerning the mechanisms of these toxicities, but also at being able to specify the unexpected effects of ICIs on cells of the immune system, outside the tumor microenvironment. Diffuse infiltrative lung disease is one of the most frequent and severe toxicities encountered in patients treated with anti PD-(L)1; either for bronchial cancer, melanoma or any other type of cancer. Patients developing this type of complication benefit from cytological, bacteriological, mycological and molecular analyses of intra-alveolar constituents obtained by bronchoalveolar lavage (BAL) performed during bronchial fibroscopy as part of their routine care. These analyses help to confirm the diagnosis of alveolitis, to specify the cellular characteristics of alveolar inflammation and to eliminate differential diagnoses of ICI toxicity.
Human resolutive macrophages are essential immune cells in the resolution of inflammation. This particular type of macrophages remains poorly known and currently there are no biomarkers to identify them in vivo. Within UMR1098-RIGHT, specific biomarkers (secreted molecules and membrane receptors) of human resolutive macrophages (healthy volunteers) have been identified in vitro, but their existence in vivo remains an outstanding issue. An exploratory study (lack of data from the literature) will validate the ex vivo expression of these markers in samples of patients whose inflammation is not, or little, supported by the available therapies (NSAIDs, biotherapies, corticosteroids).
Detection and determination of platelets in bronchoalveolar lavage fluid and blood in ARDS and non-ARDS-patients. Correlation with phenotype and inflammation parameters in blood and outcome parameters.
This project uses a hybrid trial design to evaluate two biomedical interventions targeting the gut-brain axis. One intervention is portable Transcutaneous Vagus Nerve Stimulator, tVNS, that is hypothesized to stimulate the autonomic nervous system, resulting in decreased inflammation and improved cognition. The second intervention is a probiotic supplement intended to replace gut bacteria that are associated with dysbiosis in persons with HIV and alcohol consumption.
To study the effect of short-term zinc supplementation on improving inflammation, metabolic, and cardiovascular risk among HIV infected patients on stable anti-retroviral therapy
Omega-3 fatty acids, especially EPA and DHA have long been acknowledged for their capacity to counteract inflammatory responses in the human body. Understanding the impact of the dietary intake of these fatty acids along with others (such as ARA) involved in inflammation is essential for prevention and treatment of chronic non-communicable diseases as it is obesity and its comorbidities. The role that the EPA and DHA play in the inflammatory processes can be understood by studying the capacity of certain immune cells and their genetic background to respond under the constant exposure to an adjusted diet in omega-6/omega-3 fatty acids in individuals with obesity.
This study's investigators previously demonstrated the potential utility of non-invasive carotid ultrasonography to calculate carotid intima media thickness (cIMT) and stiffness (as measured by the three parameters, carotid cross-sectional distensibility [cCSD], carotid cross-sectional compliance [cCSC], and carotid incremental elastic modulus [cIEM]) in people with mucopolysaccharidoses (MPS). Investigators also studied arterial gene expression in animal models of MPS, and identified upregulation of a number of markers potentially tied to atherosclerosis and inflammation. These include the atherosclerotic marker known as Clusterin (CLU), Cathepsin S, Elastin, and the inflammatory cytokines interleukin 1-α, interleukin 1-β, interleukin 2, and interleukin 6. Other studies have identified elevation in circulating tumor necrosis factor-α correlating with pain and physical disability in certain mucopolysaccharidoses. Since these studies are cross sectional, and not longitudinal, this study aims to annually measure these previously studied biomarkers (carotid measurements, circulating cytokines, cathepsin S, elastin, and CLU) in a large cohort of MPS patients. This study is a 3-year, prospective, anonymized, longitudinal assessment of cardiovascular structure, function, and circulating biomarkers in patients with mucopolysaccharidoses.
This is a laboratory-based study and it aims to evaluate the expression of inflammasomes in healthy gingiva and in the presence of peri-implantitis and periodontitis
This study examines how a fermentable dietary fibre known to promote butyrate production impacts intestinal barrier function, intestinal microbiota, intestinal inflammation, and gastrointestinal symptoms in patients with microscopic colitis.
Platelets are primarily known for their central role in primary hemostasis. However, they are increasingly recognized for their participation in various non-hemostatic processes, such as cancer progression and clinical expression. Experimental and clinical data indicate that the involvement of platelets in the pathophysiology of cancer goes far beyond the realm of cancer-associated thrombosis. Several experimental studies have shown that platelets can promote the metastatic process by various mechanisms. However, while it has been shown in vitro that direct contact with platelets initiates tumor cells for metastasis, it remains unclear whether such contacts occur in solid tumors. In addition to their ability to promote metastasis, platelets have been shown to stimulate angiogenesis and play a crucial role in lymphangiogenesis. Considering that blood vessels, lymphatics and immune cells are major components of the tumor ecosystem, our hypothesis is that platelets contribute to the development and / or regulation of the tumor microenvironment. This is because platelets stabilize tumor blood vessels by permanently repairing vascular damage caused by immune cells infiltrating tumors. Targeting platelets destabilizes tumor vessels, causing intra-tumor hemorrhage, which allows intra-tumor accumulation of intravenously administered anti-tumor drugs such as paclitaxel and improves their efficacy. Studies have also reported the role of platelets in several pathogenic mechanisms of cancer: thrombocytosis is a paraneoplastic syndrome which suggests a poor prognosis in patients with solid tumors; a negative correlation between the platelet count and the response to chemotherapy has been reported in several types of cancer; histological analyzes of esophageal cancer suggested a possible association between the presence of platelets in the tumor stroma and the level of tumor lymphangiogenesis and lymphovascular invasion; finally, a recent study reported the expression of one of the main targets of immunotherapies, PD-L1, on the platelets of patients suffering from different types of solid cancers. All of these data support our hypothesis that platelets are components and / or regulators of the tumor microenvironment and therefore potential targets for the improvement of anti-tumor therapies. In this context, the objectives of our project are to determine whether platelets are components of the microenvironment of tumors of the central nervous system, and to study the possible correlations between the intratumoral presence of platelets and the evolution of patients with central nervous system tumors