Lipoxins in inflammation.

Lipoxins and ATL appear to be the first recognized members of a new class of endogenous mediator that are anti-inflammatory or serve for the "pro-resolution" of inflammation. PGE2 can and may display anti-inflammatory properties in certain settings, but in most cases, it enhances inflammation in vivo. This is likely the result of numerous receptor isoforms and differential coupled mechanisms for PGE2 and its diverse role in human physiology.

COVID-19 and orthodontic treatment: current perspectives.

Introduction: A pandemic was declared by the World Health Organization on 30th January 2020, the coronavirus disease (COVID-19) emerged, and led to standstill of Dentistry and Orthodontics.

Description: The COVID-19 is a very multivariant disease. It affects in many different ways; the most reported symptoms resemble very much to that of a seasonal flu.