Concerning the mechanism producing an adrenalin myocarditis
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Adrenalin myocarditis was studied in rats. The effects of spinal cord transections above and below the spinal cord cardiac centers were studied. Transection at C5−T1 level produced spinal cord shock below that level, knocking out the cardiac sympathetic centers. Adrenalin myocarditis in this group of rats was either very indid or absent.
Transection below the centers (at lumbar level) did not give results differing mateilally from the group in which the myocarditis was induced by the usual single adrenslin injection. This seems to be because the spinal cord cardiac sympathetic centers remained unaffected by the transection.
Finally, decortication seemed to intensify the adrenalin myocarditis: probably because of the release of the central inhibition of the spinal cardiac sympathetic centers.
KeywordsSpinal Cord Adrenalin Lumbar Level Spinal Cord Transection Adrenalin Injection
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