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Goblet cell hyperplasia in lung tissue according to age in the acute asthma model. Representative photomicrographs of PAS stained lung sections (A). Quantification of the PAS-stained area by point scoring (B).
Notes: Values shown are mean ± SEM (n = 8–12/group); *P < 0.05, compared with the 6-week-old OVA group.
Abbreviations: W, weeks; wk, weeks; M, months; OVA, ovalbumin; PAS, periodic acid-schiff; SEM, standard error of the mean.
