Adrenal Insufficiency, Inflammatory Lung Diseases
Conditions
Keywords
Demonstrate that DEFA4 is a reliable biomarker for the prediction of adrenal insufficiency
Brief summary
The pathophysiology of the adrenal insufficiency of patients with critical diseases remains unclear. In a prior exploratory study investigating patients with exacerbation of chronic obstructive pulmonary disease (COPD), the investigators demonstrated a highly significant correlation between the expression level of Defensin-alpha 4 (DEFA4) mRNA in blood and the adrenal function assessed via low-dose ACTH tests. The aim of this prospective study is to demonstrate that DEFA4 measured both at the mRNA level (RT-PCR) and at the protein level (Western blot/Elisa) is a reliable biomarker for the prediction of adrenal insufficiency in inflammatory lung diseases (patients with COPD and pneumonia).
Interventions
None listed
Sponsors
Study design
Eligibility
Inclusion criteria
* Patients 18-80 yo * Patients diagnosed with pneumonia or exacerbated COPD * Healthy controls 18-80yo * Signed informed consent
Exclusion criteria
* Pregnant or lactating females * Life threatening severe disease * Known primary or secondary adrenal insufficiency * Systemic steroid therapy in the last 8 weeks * Systemic therapy with opioid * Systemic therapy with Ketoconazol, Mitotane, Metopyron, Etomidat, Rifampicin * In healthy controls: relevant respiratory disease or known adrenal insufficiency or indication of infection * Allergic reaction to ACTH * Missing informed consent