Acetylcholinesterase in singly and multiply innervated muscles of normal and dystrophic chickens. II. Effects of denervation

Autor: Barry W. Wilson, T. A. Linkhart
Rok vydání: 1975
Předmět:
Zdroj: Journal of Experimental Zoology. 193:191-200
ISSN: 1097-010X
0022-104X
DOI: 10.1002/jez.1401930208
Popis: Neural regulation of mature normal fast twitch muscle of the chicken suppresses high activity, extrajunctional localization, and isozyme forms of acetylcholinesterase (AChE) characteristic of embryonic, denervated and dystrophic muscle. Normal adult slow tonic muscle of the chicken retains intermediate levels of activity and embryonic isozyme forms but not extrajunctional activity; it is not affected by muscular dystrophy. The hypothesis that neural regulation of the AChE system is lacking in slow tonic muscle and thus not affected by dystrophy was tested by denervating the fast twitch posterior latissimus dorsi and slow tonic anterior latissimus dorsi muscles of normal and dystrophic chickens. Extrajunctional AChE activity and embryonic isozyme forms increased, then declined, in both muscles. The results suggest that control of AChE is qualitatively similar in slow tonic and fast twitch muscle of the chicken.
Databáze: OpenAIRE