TY - JOUR
T1 - The effect of chronic cardiac denervation on infarct size following acute coronary occlusion
AU - Jones, Carl E.
AU - Devous, Michael D.
AU - Thomas, John X.
AU - DuPont, Elise
N1 - Funding Information:
From the Department of Medical Physiology, Texas A t M University, College of Medicine, College Station, Texas. This research was supported by National Institutes of Health grant ROl-HL20286 and by a grant from the Texas Affiliate of the American Heart Association. Received for publication Sept. 27, 1977. Accepted for publication Nov. 7, 1977. Reprint requests: Carl E. Jones, Ph.D., Dept. of Medical Physiology, Texas A & M University College of Medicine, Olin E. Teague Research Center, College Station, Texas 77843. *Fellow of Chicago Heart Association, Department of Physiology, Loyola University, Stritch School of Medicine, Maywood, Ill.
PY - 1978/6
Y1 - 1978/6
N2 - The effect of acute coronary ligation on infarct size was studied in (1) ten acute control dogs, which were non-denervated, (2) in six acutely denervated dogs in which the heart was denervated immediately prior to coronary ligation and in which intra-cardiac reflexes were pharmacologically blocked, (3) in seven chronically denervated dogs in which intrapericardial nerves were cut 2 weeks prior to ligation, and (4) in four dogs which were sham-operated 2 weeks prior to ligation. Infarct size was determined using a nitro blue tetrazolium stain for dehydrogenase activity. Infarct sizes in acute controls, acutely denervated, chronically denervated, and sham-operated hearts were 20.1, 15.0, 3.8, and 21.0 percent of left ventricular weight, respectively. Infarct sizes in acutely and chronically denervated hearts were significantly less than in acute controls (P < 0.05). In further studies the fluorescent stain thioflavin S was used to demonstrate that perfusion of myocardium distal to the ligation was substantially greater in chronically denervated hearts than in acute controls.
AB - The effect of acute coronary ligation on infarct size was studied in (1) ten acute control dogs, which were non-denervated, (2) in six acutely denervated dogs in which the heart was denervated immediately prior to coronary ligation and in which intra-cardiac reflexes were pharmacologically blocked, (3) in seven chronically denervated dogs in which intrapericardial nerves were cut 2 weeks prior to ligation, and (4) in four dogs which were sham-operated 2 weeks prior to ligation. Infarct size was determined using a nitro blue tetrazolium stain for dehydrogenase activity. Infarct sizes in acute controls, acutely denervated, chronically denervated, and sham-operated hearts were 20.1, 15.0, 3.8, and 21.0 percent of left ventricular weight, respectively. Infarct sizes in acutely and chronically denervated hearts were significantly less than in acute controls (P < 0.05). In further studies the fluorescent stain thioflavin S was used to demonstrate that perfusion of myocardium distal to the ligation was substantially greater in chronically denervated hearts than in acute controls.
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U2 - 10.1016/0002-8703(78)90504-5
DO - 10.1016/0002-8703(78)90504-5
M3 - Article
C2 - 655087
AN - SCOPUS:0018077581
SN - 0002-8703
VL - 95
SP - 738
EP - 746
JO - American heart journal
JF - American heart journal
IS - 6
ER -