View clinical trials related to Innate Immunity.
Filter by:32 recreational athletes who will attend to the Grand Marathon in the nort west of Mexico, event that will be held on December 2, 2018 or 21k Trail to be held in April 2019 will be invited to the study. Participants will be informed about the study procedures through a consent informed. Participants will be randomly divided into two groups, 16 in the intervention group and 16 in the comparison group. The participants will be recreational athletes between 18 and 60 years old. They must have athletic experience of at least 3 years. The participants considered will be those who perform vigorous physical activity per week according to the criteria of the short version IPAQ instrument. Smoking subjects with food intolerances and allergies, cardiovascular history will be excluded. Patients who have had a respiratory infection symptom in the last two weeks will not be able to participate in the study. Participants who are consuming some type of food supplement will be excluded. Two 18 ml of blood samples will be taken from the vein of the forearm by venipuncture of each participant, using K2EDTA tubes after and before supplementation period. Blood samples were taken before a corporal, aerobic and nutritional evaluations. CB supplementation will begin 4 weeks prior to competition events. One group will consume 20 g of bovine colostrum daily in solution with water. The second group will consume a placebo product with a nutritional composition similar to the group with the treatment of bovine colostrum. Both groups should take the supplement before breakfast with empty stomach.
Cystic fibrosis (CF) is characterized by a decrease in mucociliary clearance, recurrent infections and airway inflammation. This inflammatory process in airway mucosa is persistent, uncontrolled, but, somewhat paradoxically, ineffective for pathogen clearance. Neutrophils are chronically recruited in the airway mucosa by proinflammatory mediators such as Interleukin (IL)-17. However, mechanisms involved in this dysregulated and persistent immune response are not well understood. In this context, a heterogeneous subpopulation of T lymphocytes called "unconventional T cells" (UTC) should deserve greater attention. UTC play a key role in orchestrating the ensuing innate and adaptive immune responses and they are endowed with numerous regulatory and effector properties. UTC mainly establish residency at mucosal sites, including the lung. To date, however, data related to implication and behavior of UTC during cystic fibrosis are extremely limited. The hypothesis is that, given UTC properties, their functions and behavior are altered in CF, and thus, these cells could be implicated in persistent inflammation and poor response to infections. The objective is to study UTC properties and functions in cystic fibrosis using blood and sputum samples of patients with CF, in correlation with comprehensive clinical and microbiological data. The study will enroll adult patients with CF followed-up at University Hospital of Tours, France. For each patient included, blood and sputum samples will be analyzed during 18 months 1/ from routine tests obtained at steady state and 2/ from tests performed during acute exacerbations. UTC will be explored in blood and sputum using flowcytometry approach, to evaluate their relative abundance, activation/inhibition profile and functions (cytokine production and cytotoxic ability). Correlation will be made with clinical status, with longitudinal comparison across the study period for each patient, and comparison with the other patients and healthy volunteers. This study will add significant knowledge in CF immunopathology by comprehensively assess UTC presence, functions and activation in CF. Indeed, UTC could be explored for disease progression marker, and, in a long-term perspective, explored for therapeutic interventions aiming at modulating their function (by activating or inhibiting UTC), to reshape lung immune response during CF.
This study investigates the salivary LL-37 in passive smoking-exposed and unexposed children and the association between salivary LL-37 levels and periodontal clinical parameters in these children.Unstimulated salivary samples were collected from 180 children (90 passive smoking-exposed and 90 passive smoking-unexposed)
This is a single-center, double-blind, randomized controlled trial, with parallel groups and reference group. The aim of the study was to investigate whether feed a fermented formula milk leads to an increase of anti-microbial peptides such as catelecidine, alpha and beta defensins and secretory-IgA, compared to feed a standard formula (Plasmon Primigiorni), according to mode of delivery. Breastfed infants were the reference group.
The propose is to test innate immune training in a pilot study of 40 adults >50 years of age people in Guinea-Bissau. The hypothesis is that BCG vaccination will be associated with increased innate immune training measured as increased cytokine release after in vitro Peripheral Blood Mononuclear Cells (PBMC) stimulation with e.g. Mycobacterium Tuberculosis, Staphylococcus Aureus, Candida Albicans and Streptococcus Pneumoniae.
The main objective of this study is to characterize the biological responses elicited by endotoxin inhalation applied to healthy subjects, and to assess the effect of standard anti-inflammatory agents (i.e. adalimumab and methylprednisolone) on these biological responses.
Background: The primary focus of the Vaccine Research Center (VRC) at the NIH is to develop vaccines for HIV/AIDS. The main purpose of this study is to look in detail at the body s immune response to two experimental HIV vaccines currently in development at the VRC. One is known as the rAd5 vaccine and the other is known as the DNA vaccine. These vaccines are made with pieces of manufactured DNA. They do not contain live or killed HIV. It is impossible for study vaccines to give you HIV and they cannot cause you to give HIV to someone else. Both of these experimental vaccines have been given to people before in other research studies. They have not been approved for treating or preventing HIV infection. Purpose: The main purpose of this study is to look in detail at the body s immune responses after the experimental HIV vaccines are given and to assess safety of the study vaccines. Eligibility: Healthy volunteers between the ages of 18 and 50 who are not infected with HIV and who meet the eligibility requirements. Design: Participants will be screened with a medical history (including questions about sexual history and drug use), physical exam, and blood tests. The study will have two groups: <TAB>One group will receive one injection of the rAd5 vaccine, and have 8 clinic visits over 3 months. <TAB>The second group will have three injections of the DNA vaccine, one injection of the rAd5 vaccine, and have 12 clinic visits over 6 months. All participants will be asked to provide blood and body fluid samples for testing during the study. Payment for participation will be provided....