Age-related changes of elements in the human articular disk of the temporomandibular joint.
To elucidate compositional changes of the articular disk (AD) of the temporomandibular joint (TMJ) by aging, elements of the ADs resected from 18 cadavers were determined by inductively coupled plasma atomic-emission spectrometry. It was found that calcium contents of ADs in TMJs increased progressively with aging, whereas the sulfur contents of the ADs decreased slightly with aging. Regarding the content of phosphorus, the contents increased progressively with aging. The study revealed that age-related changes of calcium contents in the ADs of TMJs were similar to those in women's pubic symphyses, but not those in intervertebral disks and menisci.
Takano
Y
Y
Department of Anatomy, Kochi Medical School, Nankoku, Japan.
Moriwake
Y
Y
Tohno
Y
Y
Minami
T
T
Tohno
S
S
Utsumi
M
M
Yamada
M
M
Okazaki
Y
Y
Yamamoto
K
K
D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000502:physiology*; D002102:Cadaver; D002118:Calcium / Q000032:analysis; D005260:Female; D006801:Humans; D008274:Magnesium / Q000032:analysis; D008297:Male; D008875:Middle Aged; D010758:Phosphorus / Q000032:analysis; D012737:Sex Factors; D013054:Spectrophotometry, Atomic / Q000379:methods; D013455:Sulfur / Q000032:analysis; D019224:Temporomandibular Joint Disc / Q000737:chemistry* / Q000502:physiology*; D014131:Trace Elements / Q000032:analysis*
D014131:Trace Elements; D010758:Phosphorus; D013455:Sulfur; D008274:Magnesium; D002118:Calcium