| Literature DB >> 6182949 |
M S Miller, S H Buck, I G Sipes, H I Yamamura, T F Burks.
Abstract
Capsaicin depleted substance P from guinea pig dorsal root ganglia and inhibited the retrograde axoplasmic transport of nerve growth factor (NGF). Doses of capsaicin which depleted substance P also inhibited the retrograde axoplasmic transport of NGF. Inhibition of the retrograde transport of NGF by capsaicin preceded substance P depletion. Supplementation of guinea pigs with mouse NGF completely prevented capsaicin-induced substance P depletion. It is concluded that capsaicin depletes substance P from primary afferent neurons of the adult guinea pig by altering the availability of NGF. The data support a role for NGF in the normal maintenance of neuropeptide levels in some sensory neurons in the adult animal.Entities:
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Year: 1982 PMID: 6182949 DOI: 10.1016/0006-8993(82)90969-6
Source DB: PubMed Journal: Brain Res ISSN: 0006-8993 Impact factor: 3.252