S
Sonnie P. Kirk
Researcher at AgResearch
Publications - 5
Citations - 1986
Sonnie P. Kirk is an academic researcher from AgResearch. The author has contributed to research in topics: Myostatin & Skeletal muscle. The author has an hindex of 5, co-authored 5 publications receiving 1927 citations.
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Journal ArticleDOI
Myostatin, a Negative Regulator of Muscle Growth, Functions by Inhibiting Myoblast Proliferation
Mark Thomas,Brett Langley,Carole Berry,Mridula Sharma,Sonnie P. Kirk,John J. Bass,Ravi Kambadur +6 more
TL;DR: It is proposed that the generalized muscular hyperplasia phenotype observed in animals that lack functional myostatin could be as a result of deregulated myoblast proliferation.
Myostatin, a negative regulator of muscle growth, functions by inhibiting myoblast proliferation.
TL;DR: In this paper, it was shown that myostatin up-regulated p21Waf1, Cip1, and decreased the levels and activity of Cdk2 protein in myoblasts.
Journal ArticleDOI
Myostatin regulation during skeletal muscle regeneration.
TL;DR: The low level of myostatin observed in regenerating myotubes in these studies suggests a negative regulatory role for myostAT in muscle regeneration.
Journal ArticleDOI
Sexual dimorphism is associated with decreased expression of processed myostatin in males.
Christopher D. McMahon,Ljiljana Popovic,Ferenc Jeanplong,Jenny M. Oldham,Sonnie P. Kirk,Claire C. Osepchook,Karen W. Y. Wong,Mridula Sharma,Ravi Kambadur,John J. Bass +9 more
TL;DR: The data show first that decreased processed myostatin is a posttranscriptional and posttranslational event and, second, that decreased abundance of processed mystatin is associated with increased body mass and skeletal muscle mass in male compared with female mice.
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Insulin-like growth factor-II delays early but enhances late regeneration of skeletal muscle.
TL;DR: The enhancing effect of IGF-II on late muscle regeneration, when the main process taking place is fiber enlargement, coincides with the period in which IGF- II is normally expressed by regenerating muscle, indicating that greater endogenous production of IGF -II would be associated with improved regeneration.