Late-onset familial amyloid polyneuropathy: an autopsy study of two Japanese brothers.
We report an autopsy study of late-onset familial amyloid polyneuropathy with a variant transthyretin Val30Met in 2 brothers living in Kyoto, Japan. The disease onsets were at 64 and 59 years, and they died at 71 and 74 years old, respectively. They exhibited almost the same postmortem findings. Amyloid deposition was remarkable in the hearts, but was not seen in the renal glomeruli. In the peripheral nervous system, amyloid deposition was most prominent in the nerves immediately caudal to ganglia, moderate in the dorsal and sympathetic ganglia, and mild in the spinal roots, sciatic nerves, and distal nerves. The difference between the amyloid deposition in the proximal portion and distal portion of the extremity nerves appeared to be greater in the late-onset type than in the ordinary type, and this proximal deposition of amyloid may have induced severe distal nerve fiber degeneration.
Fujitake
Junko
J
Department of Neurology, Kyoto City Hospital, 1-2 Higashitakada-cho, Mibu, Nakagyo-ku, Kyoto 604-8845, Japan. j-fuji@mbox.kyoto-inet.or.jp
Mizuta
Haruo
H
Fujii
Hayato
H
Ishikawa
Yasuhiro
Y
Katsuyama
Eiji
E
Takasu
Kosho
K
Saida
Kyoko
K
Tatsuoka
Yoshihisa
Y
D017668:Age of Onset; D000368:Aged; D028227:Amyloid Neuropathies, Familial / Q000235:genetics / Q000473:pathology*; D001344:Autopsy; D005727:Ganglia, Spinal / Q000473:pathology*; D006801:Humans; D007564:Japan; D008297:Male; D008875:Middle Aged; D009186:Myelin Sheath / Q000473:pathology; D009206:Myocardium / Q000473:pathology*; D009412:Nerve Fibers / Q000473:pathology*; D010375:Pedigree; D017933:Peripheral Nervous System / Q000473:pathology*; D011228:Prealbumin / Q000235:genetics
D011228:Prealbumin