Serum retinol and airway obstruction.
The relation of serum retinol and carotenoids to airway obstruction was investigated in a population-based study. Respiratory symptoms and the pulmonary function of 83 white males were assessed in 1979 5 years after their blood had been drawn. Airway obstruction in 1979, defined as a forced expiratory volume in 1 second which was equal to or less than 75% of the forced vital capacity, was associated with a decreased 1974 level of serum retinol.
Morabia
A
A
Department of Epidemiology, Johns Hopkins University School of Hygiene and Public Health, Baltimore, MD.
Menkes
M J
MJ
Comstock
G W
GW
Tockman
M S
MS
D000368:Aged; D002338:Carotenoids / Q000097:blood*; D003430:Cross-Sectional Studies; D005541:Forced Expiratory Volume; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000097:blood* / Q000453:epidemiology / Q000503:physiopathology; D008297:Male; D008396:Maryland; D008875:Middle Aged; D012307:Risk Factors; D014797:Vital Capacity; D014801:Vitamin A / Q000097:blood*; D014810:Vitamin E / Q000097:blood
D014801:Vitamin A; D014810:Vitamin E; D002338:Carotenoids