Monday, September 20, 2010

surgical sympathectomy produces hypersensitivity of the vessels.

Scand J Work En viron Health 13 (1987) 3 1 3 - 3 1 6

Depression of Endothelial Nitric Oxide Synthase

but Increased Expression of Endothelin-1 Immunoreactivity in Rat Thoracic Aortic Endothelium Associated With Long-term, but Not Short-term, Sympathectomy.

Original Contribution

Circulation Research. 79(2):317-323, August 1996.
Aliev, Gjumrakch; Ralevic, Vera; Burnstock, Geoffrey

Denervation supersensitivity in the denervated heart

The guanethidine sympathectomy in 4- and 8-week old white rats increased cardiac sensitivity to acetylcholine. An increase of sensitivity to adrenaline was observed in 8 to 20 weeks of postnatal period. The significance of the changes of extracardiac effects and the cardiac sensitivity to acetylcholine and adrenaline for its chronotropic control in sympathectomized 10-14 week old rats is discussed.
http://www.ncbi.nlm.nih.gov/pubmed/3569584