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Glycine administration attenuates progression of dystrophic pathology in prednisolone-treated dystrophin/utrophin null mice.


ABSTRACT: Duchenne muscular dystrophy (DMD) is an X-linked genetic disease characterized by progressive muscle wasting and weakness and premature death. Glucocorticoids (e.g. prednisolone) remain the only drugs with a favorable impact on DMD patients, but not without side effects. We have demonstrated that glycine preserves muscle in various wasting models. Since glycine effectively suppresses the activity of pro-inflammatory macrophages, we investigated the potential of glycine treatment to ameliorate the dystrophic pathology. Dystrophic mdx and dystrophin-utrophin null (dko) mice were treated with glycine or L-alanine (amino acid control) for up to 15 weeks and voluntary running distance (a quality of life marker and strong correlate of lifespan in dko mice) and muscle morphology were assessed. Glycine increased voluntary running distance in mdx mice by 90% (P?

SUBMITTER: Ham DJ 

PROVIDER: S-EPMC6736947 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature

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Glycine administration attenuates progression of dystrophic pathology in prednisolone-treated dystrophin/utrophin null mice.

Ham Daniel J DJ   Gardner Anastasia A   Kennedy Tahnee L TL   Trieu Jennifer J   Naim Timur T   Chee Annabel A   Alves Francesca M FM   Caldow Marissa K MK   Lynch Gordon S GS   Koopman René R  

Scientific reports 20190910 1


Duchenne muscular dystrophy (DMD) is an X-linked genetic disease characterized by progressive muscle wasting and weakness and premature death. Glucocorticoids (e.g. prednisolone) remain the only drugs with a favorable impact on DMD patients, but not without side effects. We have demonstrated that glycine preserves muscle in various wasting models. Since glycine effectively suppresses the activity of pro-inflammatory macrophages, we investigated the potential of glycine treatment to ameliorate th  ...[more]

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