Fig. 1.

Study design. Three-week old male mice were fed a vitamin D deficient or standard control diet during the whole study period. At the age of 8–9 weeks, mice were instilled via an aerosolizer syringe with 0.2 μg/kg 1α,25(OH)₂D₃ or a vehicle 2 h prior to a 25 μg LPS instillation and measurements were performed 24 h later