View clinical trials related to Immunological Abnormality.
Filter by:The goal of the prospective observational study is to evaluate the immunological background of inflammatory response often seen after open thoracic aortic surgery. Patients scheduled for this type of procedure will undergo a series of blood testing (preoperatively, and several times postoperatively). The blood samples will be used for a wide scale of immunological tests to better evaluate potential differential markers against infection. A control group will include patients with active infective endocarditis (preoperatively). The main question is if there is a biomarker able to determine a difference between sterile systemic inflammation and infection after thoracic aortic surgery. The second question is if there is a difference in dynamics of evaluated biomarkers between sterile postoperative inflammation and active endocarditis.
COVID-19 has emerged as a global pandemic. It is mainly manifested as pneumonia which may deteriorate into severe respiratory failure. The major hallmark of the disease is the systemic inflammatory immune response characterized by Cytokine Storm (CS). CS is marked by elevated levels of inflammatory cytokines, mainly interleukin-6 (IL-6), IL-8, IL-10, tumour necrosis factor-α (TNF-α) and interferon-γ (IFN-γ). Of these, IL-6 is found to be significantly associated with higher mortality. IL-6 is also a robust marker for predicting disease prognosis and deterioration of clinical profile. (1) IL-6 was detectable in the breath condensate of all the healthy non-smokers, but was significantly higher in the COPD patient. Exhaled breath condensate is totally non-invasive and highly acceptable to patients. The collection procedure has no effect on airway function or inflammation, and there is growing evidence that abnormalities in condensate composition may reflect biochemical changes in airway lining fluid. This method has been successfully used in previous studies to investigate several inflammatory markers in COPD and asthmatic patients. (2) Il-6 is produced in the lung by interstitial fibroblasts, alveolar macrophages, and large-vessel and bronchial epithelial cells. IL-6 levels are high in chronic inflammatory conditions of the lung, such as those due to allogeneic transplantation, bleomycin-induced fibrosis and a variety of human interstitial lung diseases. High levels of IL-6 have been found in the induced sputum of patients with COPD, particularly during exacerbation. Park et al. found increased IL-6 levels in the Bronchioalveolar lavage fluid of patients with non-specific interstitial pneumonia/fibrosis and in some patients with interstitial pneumonia. (3) the study involved 20 healthy controls and 20 patients with moderate to severe covid-19 according to cdc classifaction and 20 patients post covid-19 with lung fibrosis to estimate the measurment of interleukin-6 at exhaled condensate, this clinical randomized control study consists of 3 arms for 6 month ( all participants above 18 years non prgnant humans )
Objectives: To identify peripheral neuroinflammatory markers in patients suffering from major depression or psoriasis in relation to affective symptoms (anxiety, depression, irritability), fatigue and cognitive symptoms; and their change after specific treatments. Methodology: Observational prospective cohort study in patients diagnosed with major depression and patients with plaque psoriasis, who naturalistically undergo different treatments (systemic or biological for psoriasis, antidepressants for depression). Forty-one patients with major depression attending psychiatric consultations and 82 patients with psoriasis attending dermatology consultations at Hospital Universitari Germans Trias i Pujol aged 18 to 65 years old will be selected for inclusion. All of them will be assessed at baseline and after 4 months treatment through a series of demographic and clinical variables, psychiatric diagnosis, psychopathological scales and immunological and biochemical variables after blood draw for obtaining serum, peripheral blood mononuclear cell (PBMC) and extraction of total RNA. Investigators will analyze the correlation between immunological markers and affective and cognitive symptoms at baseline, as well as their variation after treatment. Subsequently, a bivariate comparative analysis will be carried out, where statistically significant or marginally significant variables associated with psychopathological variables will be used to construct a multivariate model of binary logistic regression.
Modelling repurposed from pandemic influenza is currently informing all strategies for SARS-CoV-2 and the disease COVID-19. A customized disease specific understanding will be important to understand subsequent disease waves, vaccine development and therapeutics. For this reason, ISARIC (the International Severe Acute Respiratory and Emerging Infection Consortium) was set up in advance. This focuses on hospitalised and convalescent serum samples to understand severe illness and associated immune response. However, many subjects are seroconverting with mild or even subclinical disease. Information is needed about subclinical infection, the significance of baseline immune status and the earliest immune changes that may occur in mild disease to compare with those of SARS-CoV-2. There is also a need to understand the vulnerability and response to COVID-19 of the NHS workforce of healthcare workers (HCWs). HCW present a cohort with likely higher exposure and seroconversion rates than the general population, but who can be followed up with potential for serial testing enabling an insight into early disease and markers of risk for disease severity. We have set up "COVID-19: Healthcare worker Bioresource: Immune Protection and Pathogenesis in SARS-CoV-2". This urgent fieldwork aims to secure significant (n=400) sampling of healthcare workers (demographics, swabs, blood sampling) at baseline, and weekly whilst they are well and attending work, with acute sampling (if hospitalised, via ISARIC, if their admission hospital is part of the ISARIC network) and convalescent samples post illness. These will be used to address specific questions around the impact of baseline immune function, the earliest immune responses to infection, and the biology of those who get non-hospitalized disease for local research and as a national resource. The proposal links directly with other ongoing ISARIC and community COVID projects sampling in children and the older age population. Reasonable estimates suggest the usable window for baseline sampling of NHS HCW is closing fast (e.g. baseline sampling within 3 weeks).
This study will address HIV patients who are on antiretroviral treatment (ART) and experiencing immunological failure. The cause of immunological failure in HIV patients could be due to several factors such as age, gender, Cluster of Differentiation (CD4)+ count before started treatment and some inflammation in the gut. The C-C Chemokine Receptor 5 (CCR5) receptor on T lymphocyte CD4+ are abundantly found in the gut and attacked by HIV virus during acute infection causing irreversible damage. The disruption of gut integrity and chronic inflammation further causing translocation of bacteria in gut lumen to the blood. Thus resulting persistent low CD4+ or immunological failure. This evaluation plan is designed to establish the role of investigation product (probiotics) to improve gut inflammation in HIV patients.