The Role of Macrophages in the Inflammatory Resolution Phase in Periodontal Patients
The Role of Macrophages in the Inflammatory Resolution Phase in Periodontal Patients
There is a growing body of evidence to suggest that the resolution of an inflammatory reaction is an active process. This process requiring signals that turn off early inflammatory stages, as neutrophil infiltration and promote resolution phase, as clearance of apoptotic cells. In this array,the relationship between neutrophils, monocytes, and macrophages is crucial for the concert process.
Macrophages possess a plasticity of phenotype that explains their protective as well as potentially detrimental role in chronic inflammation and tissue injury. Such heterogeneity arises as macrophages differentiate from monocytes and are exposed to specific tissue- and hematopoietic cell-derived stimuli. It is important to be able to identify the different types of macrophages in this setting. Today's literature can distinguish between 3 main phenotypic groups of macrophages. The classically activated M1 macrophages, the alternatively activated-M2 macrophages and the "resolution phase" - rMs macrophages. The third phenotypic macrophage might play a crucial rule in the resolution phase, and is called the "resolving macrophage".
All of those pro-resolving lipid mediators promote the return to tissue homeostasis .
The investigators hypothesis is that in periodontal patients the inflammatory process continues because the process does not reach the resolution phase, and in that milieu, the macrophage might be a key component.
Within the overall concept of periodontal disease as a model for an inflammatory disease with an stoppable inflammatory reaction, the primary aim of the study is to check the macrophage characteristics in periodontal patients and to compare it to healthy people.
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