Cd. Ianuzzo et al., CARDIOMYOPLASTY - COMPARISON OF LATISSIMUS-DORSI MUSCLES OF 3 LARGE MAMMALS WITH THAT OF HUMAN, Journal of cardiac surgery, 11(1), 1996, pp. 30-36
Cardiomyoplasty has the potential to become an alternative therapy for
congestive heart failure patients and is presently in Phase III clini
cal trials. in experimental studies, it is necessary to use an animal
with muscle characteristics that resemble those of humans. Therefore,
the purpose of this study was to compare morphological and biochemical
characteristics of the latissimus dorsi muscle (LDM) of three common
large mammals with those of human. Of the three mammals studied, the g
oat had the most overall similarities to the human when comparing mito
chondrial capacity percent fiber types, fiber areas, myofibrillar (MF)
-ATPase activity, and 72-kDa heat shock protein (HSP) content. The pig
was dissimilar to the human in its fiber-type arrangement, glycolytic
capacity, percent fiber type, MF-ATPase activity, and HSP-72 content.
The dog differed from the human in that it had high-mitochondrial enz
yme activity, a fiber-type profile consisting of all high-aerobic fibe
rs, and fiber cross-sectional areas that were nearly half those of hum
ans. These findings show that the LDM of the goat most resembles that
of the human.