The Effect of a Unilateral Muscle Transplantation on the Muscle Fiber Type and the MyHC Isoform Content in Unoperated Hind Limb Slow and Fast Muscles of the Inbred Lewis Rats

Title:

The Effect of a Unilateral Muscle Transplantation on the Muscle Fiber Type and the MyHC Isoform Content in Unoperated Hind Limb Slow and Fast Muscles of the Inbred Lewis Rats

Creator:

Zachařová, G., Vadászová, A., Smerdu, V., Asmussen, G., and Soukup, T.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:465b1f29-3d05-43ab-ad8f-32e73c1f6012
uuid:465b1f29-3d05-43ab-ad8f-32e73c1f6012

Subject:

Rat hind limb muscle, Muscle fiber phenotype, Stereology, Immunocytochemistry, Gel electrophoresis, Influence of surgery, and Muscle transplantation

Type:

article, model:article, and TEXT

Description:

To reveal the effect of foreign innervation and altered thyroid status on fiber type composition and the myosin heavy chain (MyHC) isoform expression in the rat slow soleus (SOL) and fast extensor digitorum longus (EDL) muscles, a method of heterochronous isotransplantation was developed. In this experimental procedure, the SOL or EDL muscles of young inbred Lewis rats are grafted either into the host EDL or SOL muscles of adult rats of the same strain with normal or experimentally altered thyroid status. To estimate the extent of fiber type transitions in the transplanted muscles, the SOL and EDL muscle from the unoperated leg and unoperated muscles from the operated leg could be legitimately used as controls, but only when the experimental procedure itself does not affect these muscles. To verify this assumption, we have compared the fiber type composition and the MyHC isoform content of unoperated contralateral SOL and EDL muscles and ipsilateral unoperated SOL muscle of experimental rats after unilateral isotransplantation into the host EDL muscle with corresponding muscles of the naive rats of the same age and strain. We provide compelling evidence that the unilateral heterochronous isotransplantation has no significant effect on the fiber type composition and the MyHC isoform content of unoperated muscles of experimental animals. Hence, these muscles can be used as controls in our grafting experiments.

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Source:

Physiological research | 2005 Volume:54 | Number:6

Harvested from:

CDK

Metadata only:

false