Hee Kyung Baek

BMC bone mineral content BMD bone mineral density c-Jun c-Jun N-terminal kinase COL-II type II collagen DXA dual energy X-ray absorptiometry H&E hematoxylin and eosin IL interleukin IκB inhibitor of kappa B JNK c-Jun N-terminal kinase MIA monosodium iodoacetate MMP matrix metalloproteinase NF-κB nuclear factor kappa-light-chain-enhancer of activated B cells NSAIDs nonsteroidal anti-inflammatory drugs OA osteoarthritis RT-PCR reverse transcription polymerase chain reaction 1 Introduction...

1. Introduction The scalp of human beings is covered with about 100,000 hairs, protecting the scalp and brain from external stimuli, such as physical collision, changes in temperature and humidity, or ultraviolet light from the sun [1]. The structure of hair consists of two parts: the hair shaft and hair follicle [2]. The upper part of the hair, which can be observed above the skin, is the hair shaft.