Effect of preganglionic stimulation or chronic decentralization on neurotensin-like immunoreactivity in sympathetic ganglia of the cat

1989 ◽  
Vol 482 (2) ◽  
pp. 365-370 ◽  
Author(s):  
Monica M. Caverson ◽  
Manjit Bachoo ◽  
John Ciriello ◽  
Canio Polosa
Keyword(s):  
Sympathetic Ganglia ◽  
Preganglionic Stimulation

Late Discharges in Dog's Sympathetic Ganglia

1972 ◽  
Vol 50 (3) ◽  
pp. 263-269 ◽  
Author(s):  
S. S. Chen
Keyword(s):  
Superior Cervical Ganglion ◽  
Stimulus Frequency ◽  
Sympathetic Ganglia ◽  
Late Response ◽  
Before And After ◽  
Cervical Ganglion ◽  
High Stimulus ◽  
Time Courses ◽  
Preganglionic Stimulation ◽  
Muscarinic And Nicotinic Receptors

In the dog a preganglionic stimulation at a high stimulus frequency for 10–15 s elicited a two-wave response, early and late responses in the perfused ear (vasoconstriction), as well as early and late contractions in the nictitating membrane. Both the late contraction and the late response could be aborted by cooling the superior cervical ganglion, and restored by rewarming the ganglion. Both were resistant to atropine and hexamethonium combined. Their magnitude depended upon the duration of stimulation and upon the stimulus frequency used. Their time courses were similar both before and after hexamethonium or chilling. Therefore, it is concluded that they are manifestations of late discharges in the superior cervical ganglion, which are independent of both muscarinic and nicotinic receptors in the ganglion. A similar but less prominent phenomenon was demonstrated in the lumbosacral sympathetic ganglion of the dog by studying the responses of the retractor penis muscle and the perfused hind limb to preganglionic stimulation.

THE ACTION OF CATECHOLAMINES IN SYMPATHETIC GANGLIA

1963 ◽  
Vol 41 (1) ◽  
pp. 2627-2636 ◽  
Author(s):  
Mervyn C. L. Weir ◽  
H. McLennan
Keyword(s):  
Synaptic Transmission ◽  
Sympathetic Ganglion ◽  
Sympathetic Ganglia ◽  
Physiological Significance ◽  
Preganglionic Stimulation

Injection of the catecholamines, and particularly adrenaline, has been found always to depress synaptic transmission in a sympathetic ganglion. Although an adrenaline-like substance is released upon preganglionic stimulation, this is not believed to have any physiological significance.

THE ACTION OF CATECHOLAMINES IN SYMPATHETIC GANGLIA

1963 ◽  
Vol 41 (12) ◽  
pp. 2627-2636 ◽  
Author(s):  
Mervyn C. L. Weir ◽  
H. McLennan
Keyword(s):  
Synaptic Transmission ◽  
Sympathetic Ganglion ◽  
Sympathetic Ganglia ◽  
Physiological Significance ◽  
Preganglionic Stimulation

Injection of the catecholamines, and particularly adrenaline, has been found always to depress synaptic transmission in a sympathetic ganglion. Although an adrenaline-like substance is released upon preganglionic stimulation, this is not believed to have any physiological significance.

scholarly journals Upregulation of Immunoreactive Angiotensin II Release and Angiotensinogen mRNA Expression by High-Frequency Preganglionic Stimulation at the Canine Cardiac Sympathetic Ganglia

2001 ◽  
Vol 88 (1) ◽  
pp. 110-116 ◽  
Author(s):  
Kazushi Kushiku ◽  
Hiromi Yamada ◽  
Kazuhiko Shibata ◽  
Ryoko Tokunaga ◽  
Takeshi Katsuragi ◽  
...  
Keyword(s):  
Angiotensin Ii ◽  
Mrna Expression ◽  
High Frequency ◽  
Sympathetic Ganglia ◽  
Preganglionic Stimulation

Unusual Intranuclear Structures in Chick Sympathetic Neurons

1967 ◽  
Vol 25 ◽  
pp. 188-189
Author(s):  
E. B. Masurovsky ◽  
H. H. Benitez ◽  
M. R. Murray
Keyword(s):  
Electron Microscope ◽  
Sympathetic Neurons ◽  
Uranyl Acetate ◽  
Sympathetic Ganglia ◽  
Lead Citrate ◽  
Thin Sections ◽  
Cns Neurons ◽  
Mammalian Cns

Recent light- and electron microscope studies concerned with the effects of D2O on the development of chick sympathetic ganglia in long-term, organized culture revealed the presence of rod-like fibrillar formations, and associated granulofibrillar bodies, in the nuclei of control and deuterated neurons. Similar fibrillar formations have been reported in the nuclei of certain mammalian CNS neurons; however, related granulofibrillar bodies have not been previously described. Both kinds of intranuclear structures are observed in cultures fixed either in veronal acetate-buffered 2%OsO4 (pH 7. 4), or in 3.5% glutaraldehyde followed by post-osmication. Thin sections from such Epon-embedded cultures were stained with ethanolic uranyl acetate and basic lead citrate for viewing in the electron microscope.

scholarly journals Angiotensin II biosynthesis and its receptor signal transduction mechanisms in dog cardiac sympathetic ganglia.

1996 ◽  
Vol 71 ◽  
pp. 330
Author(s):  
Kazushi Kushiku ◽  
Ryoko Tokunaga ◽  
Hiromi Yamada ◽  
Kazuhiko Shibata ◽  
Katsuhiro Yamada ◽  
...  
Keyword(s):  
Signal Transduction ◽  
Angiotensin Ii ◽  
Sympathetic Ganglia ◽  
Receptor Signal ◽  
Transduction Mechanisms
Sign in / Sign up

Export Citation Format

Share Document