Grand Challenge in Inflammation

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Blocking IL-1 in systemic inflammation

A growing number of systemic inflammatory diseases characterized in part by recurrent fevers, leukocytosis, anemia, and elevated acute phase proteins are linked to interleukin (IL)-1 activity since rapid and sustained resolution is observed upon specific blockade of IL-1 receptors. Rapid resolution of systemic and local inflammation is now also reported in systemic onset juvenile idiopathic arthritis (SoJIA). Loss of control of the secretion of IL-1β might be a common mechanism explaining the aberrant activity of IL-1 in these diseases

Can a Mendelian Randomization Study Predict the Results of a Clinical Trial? Yes and No

Randomized controlled trials are considered at the top of the evidence hierarchy. However, in several cases randomized trials cannot be conducted or have not yet been completed. In such settings observational studies may provide important inference, yet traditional statistical adjustment methods fall short of controlling for all potential confounders, as unknown confounders cannot be taken care of by even the most sophisticated statistical tools. The mendelian randomization study is a type of research design which simultaneously exploits random transmission of genes and genetic linkage to obtain inferential estimates from the association between specific genetic variants known to modulate given risk factors and the corresponding outcomes of interests. Despite several developments in this field, there remain several areas of further research, and discrepancies between mendelian randomization studies and the corresponding randomized trials have already been recognized. Nonetheless, it is likely that this novel type of study will be used more commonly in the future, and a working knowledge of its pros, cons, and range of validity is crucial for conscientious interpretation and application. We thus aimed to concisely yet poignantly introduce the scholarly reader to this novel type of research design, notwithstanding that complementarity prevails in most cases over overlap between mendelian randomization studies and randomized trials

Induction by toxic-shock-syndrome toxin-1 of a circulating tumor necrosis factor-like substance in rabbits and of immunoreactive tumor necrosis factor and interleukin-1 from human mononuclear cells

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cDNA Cloning of Biologically Active Chicken Interleukin-18

By searching a chicken EST database, we identified a cDNA clone that appeared to contain the entire open reading frame (ORF) of chicken interleukin-18 (ChIL-18). The encoded protein consists of 198 amino acids and exhibits approximately 30% sequence identity to IL-18 of humans and various others mammals. Sequence comparisons reveals a putative caspase-1 cleavage site at aspartic acid 29 of the primary translation product, indicating that mature ChIL-18 might consist of 169 amino acids. Bacterially expressed ChIL-18 in which the N-terminal 29 amino acids of the putative precursor molecule were replaced by a histidine tag induced the synthesis of interferon-γ (IFN-γ) in cultured primary chicken spleen cells, indicating that the recombinant protein is biologically active

Interleukin-1: The Pros and Cons of Its Clinical Relevance

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/75148/1/j.1525-1594.1988.tb02759.x.pd

Protection of neutropenic mice from lethal Candida albicans infection by recombinant interleukin-1

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