Suppressive Effect of Fermented Root Extract against Photoaging: Possible Involvement of Hemeoxygenase-1.

root has historically been used as a traditional medicine in Korea. Previous studies have identified the anti-melanogenic effects of the extract of root fermented by (FAT). This study investigated the protective effects of FAT against ultraviolet light B exposure (UVB; 30 mJ/cm) in HaCaT (human keratinocyte) or Hs68 (human foreskin fibroblast) skin cells.

Classification of trace patterns of 226- and 1000-Hz tympanometry in healthy neonates.

Objective: Accurate evaluation of middle ear function is a challenge especially in babies referred from newborn hearing screening programs. The aim was to assess the feasibility of tympanometry using 226- and 1000-Hz probe tones in neonates.

Methods: Hearing was evaluated by transient evoked otoacoustic emission (TEOAE) in 96 ears of healthy neonates in well-baby nursery.