The effect of some antidepressants on prejunctional muscarinic receptors on the sympathetic nerves of the isolated rabbit ear artery

1982 ◽  
Vol 320 (1) ◽  
pp. 14-19 ◽  
Author(s):  
Y. H. Kwok ◽  
F. Mitchelson
Keyword(s):  
Muscarinic Receptors ◽  
Sympathetic Nerves ◽  
Rabbit Ear Artery ◽  
Ear Artery ◽  
Rabbit Ear

scholarly journals THE DISTRIBUTION OF CHOLINESTERASE IN THE RABBIT EAR ARTERY

1970 ◽  
Vol 18 (3) ◽  
pp. 211-216 ◽  
Author(s):  
J. G. WATERSON ◽  
W. R. HUME ◽  
I. S. DE LA LANDE
Keyword(s):  
Sympathetic Nerve ◽  
Sympathetic Nerves ◽  
Rabbit Ear Artery ◽  
Cholinergic Mechanism ◽  
Superior Cervical Ganglionectomy ◽  
Ear Artery ◽  
Rabbit Ear

Acetylcholinesterase and butyrylcholinesterase activities were demonstrated in transverse sections of the rabbit ear artery using a "direct coloring" thiocholine technique. BW 284C51, iso-OMPA and DFP were used as inhibitors, and acetyl and butyrylthiocholine iodides as substrates. Both enzymes caused stain deposits at the medial-adventitial border of the artery, in a region where sympathetic nerves are present. Sections treated to demonstrate acetylcholinesterase showed staining which was lighter than that for butyrylcholinesterase. Degeneration of the sympathetic nerves following superior cervical ganglionectomy virtually abolished stain at the medial-adventitial border. These results provide some support for the evidence of other workers that a cholinergic mechanism may be linked to sympathetic nerve transmission in the rabbit ear artery.

An ultrastructural analysis of the sympathetic innervation of the rabbit ear artery and middle cerebral artery and their branches

1992 ◽  
Vol 50 (1) ◽  
pp. 934-935
Author(s):  
John T. Dodge ◽  
John A. Bevan
Keyword(s):  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Sympathetic Innervation ◽  
Electrical Field Stimulation ◽  
Rabbit Ear Artery ◽  
Electrical Field ◽  
Functional Differences ◽  
Ear Artery ◽  
Rabbit Ear ◽  
Vascular Beds

Unlike many peripheral vascular beds, the sympathetic nervous system exerts little control on cerebral blood flow. The contractile response of isolated rabbit middle cerebral artery (MCA) segments to electrical field stimulation of its intramural nerves is less than in a similar-sized artery from the ear. This study was undertaken to characterize and compare the perivascular neuromuscular relationships and innervation density of similar-sized arteries varying in diameter from these two different regional arterial beds to see if there were structural correlates for these functional differences.

Antagonism of Ca2+-Induced Constriction of Isolated Rabbit Ear Artery by Nitrendipine in High K+- and/or Norepinephrine-Containing Medium

1984 ◽  
Vol 6 (Supplement 7) ◽  
pp. S949
Author(s):  
Alexander Scriabine ◽  
Catherine E. Johnson ◽  
Odd S. Steinsland ◽  
Cheryl L. Anderson
Keyword(s):  
Rabbit Ear Artery ◽  
Ear Artery ◽  
High K ◽  
Rabbit Ear
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