Investigation of pepsin levels in bronchial lavage in patients with interstitial lung disease and chronic cough.

Aim: Pepsin is an enzyme that helps digest protein secreted only from the gastric chief cell in an inactive state. Pepsin is a good marker for acidic gastroesophageal reflux (GER). Its presence in sputum or saliva is considered pathologic.

The Impact of Early Phase COVID-19 Vaccination on Hospitalized COVID-19 Patients.

The number of cases of coronavirus disease-2019 (COVID-19) globally is over 225 million, and disease-related deaths are over 4 million. The type, prevalence, and antibody susceptibility of the virus variants of severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) and the vaccination rate and coverage are considered critical factors in the progress of COVID-19. We aimed to compare the clinical and laboratory parameters of the patients hospitalized due to COVID-19 in pre-vaccination and post-vaccination periods.

Rapidly Progressive Pulmonary Apical Fibrosis and Parenchymal Destruction in a Patient with Ankylosing Spondylitis.

Pulmonary apical fibrosis is a rare complication of ankylosing spondylitis (AS). The essential characteristics of this lesion are its very slow progression and frequently asymptomatic nature. Herein, we are presenting a patient with AS who rapidly developed pulmonary apical fibrosis in a 3-year period despite decreased musculoskeletal pains.