Microscopic colitis, a forgotten condition: a clinical case and review of the literature.

Objective: Microscopic colitis is a not uncommon chronic inflammatory disease of the colon, characterized by watery, non-bloody diarrhea, which is often forgotten and misdiagnosed.

Case Presentation: In this paper, we present a puzzling case of relapsing chronic diarrhea triggered by non-steroidal anti-inflammatory drug (NSAID) abuse, smoking, inappropriate antibiotic use, and secondary Clostridium Difficilis infection. Several tests were performed during hospitalization, all of which were negative apart from fecal calprotectin (> 6,000 mg/kg, normal values < 50 mg/kg) and a positive Clostridium Difficilis toxin test.

The complexity of immunology: a rare adverse event following a Pfizer-BioNTech vaccine booster shot.

Objective: Several mRNA vaccines have been developed to tackle the global pandemic. Despite their remarkable clinical efficacy, they are not devoid of severe short- and long-term adverse events.

Case Presentation: In this paper, we describe a rare delayed adverse event (arterial and venous renal thrombosis with myocardial injury) in an otherwise healthy adult female, which occurred three months after she received a booster shot of Pfizer COVID-19 vaccine.

Influence of short-term rosuvastatin therapy on endothelial progenitor cells and endothelial function.

Endothelial progenitor cells maintain endothelium integrity by replacing injured endothelial cells. Cholesterol-lowering promotes either endothelial progenitor cells mobilization or improves endothelial function. It is unknown whether improving endothelial function with statin is associated with a parallel increased endothelial progenitor cells availability.