Association between serum Klotho concentrations and asthma in middle-aged and older Americans: a cross-sectional study.
BACKGROUND Klotho, an anti-aging protein with anti-inflammatory and antioxidant properties, plays a role in asthma pathophysiology. This study investigated whether serum Klotho concentrations are associated with asthma prevalence among middle-aged and elderly Americans. METHODS This cross-sectional study included 12,...