View clinical trials related to Endotoxemia.
Filter by:The purpose of this study is to establish the safety and feasibility of low dose LPS administration to a small subset of humans in preparation for a larger USDA funded study examining what is the lowest effective dose of EPA + DHA (300, 600, 900 and 1,800 mg/day delivered as fish oil supplements) that significantly attenuates the inflammatory response the investigators wish to examine the effects of an endotoxemia model for inducing inflammation. Based on previous research, low dose LPS administration affects metabolism in humans with only minimal clinical effects (such as "flu" like illness). Therefore, each of the six subjects included in this small pilot study will receive a low dose of LPS and placebo in order to learn more about the metabolic changes that occur during administration and inflammation. The investigators hypothesis that LPS administration will elicit only minimal clinical effects (such as "flu" like illness) when compared to placebo (saline--water with the same amount of salt as in your blood).
The purpose of this study is to determine whether probiotic treatment of overweight volunteers consuming high fat diet is able to reduce plasma lipopolysaccharide concentration.
This study was designed for changes in endotoxaemia, endotoxin-binding factors, sICAM-1 (soluble intracellular adhesion molecule-1), and cytokines during progression of chronic HBV infection. Patients with chronic HBV infection and healthy control are included. A limulus assay was used to measure plasma endotoxin level and ELISAs were used to measure the concentrations of interleukin-6 (IL-6), interleukin-10 (IL-10), tumor necrosis factor-α (TNFα), sICAM-1, and soluble CD14 (sCD14).
During sepsis and septic shock the immune response can be overwhelming leading to excessive tissue damage, organ failure and death. Ideally, the inflammatory response is modulated leading to both adequate protection to invading pathogens as well as limitation of an exuberant immune response. In the last years, experimental evidence has been accumulating that enteral administration of lipid-enriched nutrition attenuates inflammation and preserves organ integrity in several inflammatory models. The current study investigates the immune-modulating potential of enriched enteral nutrition in a human setting of experimental endotoxemia.
During sepsis and septic shock the immune response can be overwhelming leading to excessive tissue damage, organ failure and death. Ideally, the inflammatory response is modulated leading to both adequate protection to invading pathogens as well as limitation of an exuberant immune response. In the last few years adenosine is proposed to have a central role in the modulation of inflammation. In unfavorable conditions such as hypoxia, ischemia or inflammation adenosine is quickly up-regulated; with concentrations up to tenfold in septic patients. Many animal studies have shown that adenosine is able to attenuate the inflammatory response and decrease mortality rates. Therefore, pharmacological elevation of the adenosine concentration is an potential target to attenuate inflammation and limit organ injury. Dipyridamole, an adenosine re-uptake inhibitor is able to increase the adenosine concentration and limit ischemia-reperfusion injury. In order to study the effects of dipyridamole on the inflammatory response we aim to use the so called human endotoxemia model. This model permits elucidation of key players in the immune response to a gram negative stimulus in vivo, therefore serving as a useful tool to investigate potential novel therapeutic strategies in a standardized setting.
This is a double blinded, randomised, crossover study with 12 healthy men between 18 and 40 year. The design is based on 6 days: - day 1: On day time administration of LPS. - day 2: On night time administration of LPS. - day 3: On day time administration of LPS + Placebo. - day 4: On day time administration of LPS + melatonin. - day 5: On night time administration of LPS + placebo. - day 6: On night time administration og LPS + melatonin. Measuring the inflammatoric and oxidative response of LPS and the effect of melatonin compared to placebo on the endotoxaemia.
Corticosteroids are substances produced by the adrenal gland to help the body fight against infection or injury. Hydrocortisone is a man-made form of this substance. Endotoxin is a man-made substance, which causes the body to "mimic" sickness(fever,chills,and achiness)for a few hours. This study is designed to give hydrocortisone before and after Endotoxin to determine if this medication can prevent or relieve any of the symptoms caused by the Endotoxin.
The purpose of this study is to better understand the anti-inflammatory benefits of two prescription medicines that are currently used to help people with cholesterol problems. Fish oil, from eating certain kinds of fish and from supplement pills, has been used to help control cholesterol and reduce inflammation (the body's response to injury or sickness). Lovaza® is the brand name for prescription strength fish oil pills. In this study, we will be looking at how Lovaza® works to help reduce inflammation in healthy volunteers. Tricor® is the brand name for prescription fenofibrate pills. Fenofibrate is a prescription medicine that many doctors give to people with high triglyceride (fat in the blood) levels. In this study, we will be looking at how Tricor® works to help reduce inflammation in healthy volunteers. Endotoxin or lipopolysaccharide (LPS) is a small part of bacteria (that is no longer living) that can cause many of the effects similar to bacterial infections in humans. However, it can be administered in very small amounts to produce a mild immune response much the same as a 'flu' like illness. Within 1 ½ -3 hours after giving LPS by vein, a response consisting of fever, chills, headache, nausea and vomiting and generalized aches and pains will occur which lasts up to 6-8 hours. In addition to the flu like symptoms, the response causes temporary changes in cholesterol, triglycerides and blood sugar. Different people respond differently to LPS. We are using LPS in this study to bring on a temporary inflammatory response in the body and to compare the responses of people who receive Lovaza® or Tricor® to the responses of people who receive a placebo (pill that does not contain medicine).
To compare the safety and efficacy of the PMX cartridge based on mortality at 28-days in subjects with septic shock who have high levels of endotoxin and are treated with standard medical care plus use of the PMX cartridge, versus subjects who receive standard medical care alone.
Excessive inflammation, production of free radicals and vascular injury are considered the main contributors to the development of organ dysfunction in patients with severe infections and sepsis. The endogenously produced unconjugated bilirubin is one of the most powerful anti-oxidants of the human body and the administration of bilirubin in animal experiments has been shown to protect from inflammation-induced death. However, bilirubin for human administration is not yet available. Therefore, we wish to exploit one of the side effects of atazanavir, a registered drug currently used as a protease inhibitor in HIV infected patients. Atazanavir inhibits the enzyme UPD glucuronosyl transferase enzyme (UGT1A1) and therefore increases endogenously produced bilirubin levels moderately. To study the effect of hyperbilirubinemia during inflammation we will apply the human endotoxemia model. The human endotoxemia model permits elucidation of key players in the immune response to a gram negative stimulus in vivo, therefore serving as a useful tool to investigate potential novel therapeutic strategies in a standardized setting. We hypothesize that atazanavir-induced hyperbilirubinemia has beneficial anti-inflammatory and vascular effects during human endotoxemia.