LOCALIZATION OF NITRIC-OXIDE SYNTHASE WITHIN NONADRENERGIC, NONCHOLINERGIC NERVES IN THE MOUSE ANOCOCCYGEUS

被引:24
作者
BRAVE, SR
TUCKER, JF
GIBSON, A
BISHOP, AE
RIVEROSMORENO, V
MONCADA, S
POLAK, JM
机构
[1] KINGS COLL LONDON,DIV BIOMED SCI,PHARMACOL GRP,MANRESA RD,LONDON SW3 6LX,ENGLAND
[2] ROYAL POSTGRAD MED SCH,DEPT HISTOCHEM,LONDON W12 0HS,ENGLAND
[3] WELLCOME RES LABS,BECKENHAM BR3 3BS,KENT,ENGLAND
基金
英国医学研究理事会;
关键词
ANOCOCCYGEUS (MOUSE); NITRIC OXIDE SYNTHASE; NONADRENERGIC; NONCHOLINERGIC; DENERVATION;
D O I
10.1016/0304-3940(93)90148-E
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Immunocytochemical staining of whole mount preparations of the mouse anococcygeus muscle, using antibodies to rat brain nitric oxide synthase (NOS), revealed a dense network of NOS-immunoreactive nerve fibres running through the tissue. These fibres were resistant to the sympathetic neurotoxin 6-hydroxydopamine and are therefore likely to be the non-adrenergic nerves which mediate relaxation of this smooth muscle. Further, NOS-immunoreactive fibres were absent following denervation by cold-storage (4-degrees-C; 72 h), which has been shown to abolish non-adrenergic, non-cholinergic (NANC) relaxations. The results provide strong support for the hypothesis that the L-arginine:NO pathway is responsible for the generation of the NANC transmitter in the anococcygeus.
引用
收藏
页码:93 / 96
页数:4
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