ISSN:
1432-0533
Schlagwort(e):
Key words Acrylamide
;
Peripheral neuropathy
;
Neurofilament
;
Pathology
;
Quail
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Medizin
Notizen:
Abstract Morphological effects of acrylamide (AC) on the peripheral nerves in normal and neurofilament (NF)-deficient (Quv) Japanese quails were investigated. AC (100 mg/kg) was injected intraperitoneally every other day. After the birds manifested neurological signs, they were necropsied (after 10 ∼ 21 AC injections) and the sciatic and tibial nerves were examined. In both normal and Quv qualis, AC produced axonopathy with a distal-proximal progression. In AC-intoxicated normal quails, the nerve fiber pathology was characterized by typical Wallerian-like degeneration, consisting of axonal degeneration, myelin breakdown, macrophage migration, Schwann cell proliferation and regeneration of nerve fibers. Ultrastructurally, AC-induced NF accumulation was detected in the axon of myelinated nerve fibers. In AC-intoxicated Quv qualis, axonal degeneration with accumulation of membranous organelles occurred; however, sequential events of Wallerian-like degeneration were not as prominent as in AC-intoxicated normal qualis. These results demonstrated that NF-deficient Quv quails are sensitive to neurotoxic effects of AC. On the other hand, the different pathology of AC-intoxicated normal and Quv qualis indicates the presence or absence of NFs influences the appearance and extent of AC axonopathy.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF00294254
Permalink
