Lethal mitochondrial cardiomyopathy in a hypomorphic Med30 mouse mutant is ameliorated by ketogenic diet

Krebs, Philippe; Fan, Weiwei; Chen, Yen-Hui; Tobita, Kimimasa; Downes, Michael R; Wood, Malcolm R; Sun, Lei; Li, Xiaohong; Xia, Yu; Ding, Ning; Spaeth, Jason M; Moresco, Eva Marie Y; Boyer, Thomas G; Lo, Cecilia Wen Ya; Yen, Jeffrey; Evans, Ronald M; Beutler, Bruce (2011). Lethal mitochondrial cardiomyopathy in a hypomorphic Med30 mouse mutant is ameliorated by ketogenic diet. Proceedings of the National Academy of Sciences of the United States of America - PNAS, 108(49), pp. 19678-82. Washington, D.C.: National Academy of Sciences NAS 10.1073/pnas.1117835108

Full text not available from this repository.

Deficiencies of subunits of the transcriptional regulatory complex Mediator generally result in embryonic lethality, precluding study of its physiological function. Here we describe a missense mutation in Med30 causing progressive cardiomyopathy in homozygous mice that, although viable during lactation, show precipitous lethality 2-3 wk after weaning. Expression profiling reveals pleiotropic changes in transcription of cardiac genes required for oxidative phosphorylation and mitochondrial integrity. Weaning mice to a ketogenic diet extends viability to 8.5 wk. Thus, we establish a mechanistic connection between Mediator and induction of a metabolic program for oxidative phosphorylation and fatty acid oxidation, in which lethal cardiomyopathy is mitigated by dietary intervention.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Service Sector > Institute of Pathology > Immunopathology

UniBE Contributor:

Krebs, Philippe

ISSN:

0027-8424

Publisher:

National Academy of Sciences NAS

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 14:18

Last Modified:

05 Dec 2022 14:04

Publisher DOI:

10.1073/pnas.1117835108

PubMed ID:

22106289

Web of Science ID:

000297683800053

URI:

https://boris.unibe.ch/id/eprint/5523 (FactScience: 210276)

Actions (login required)

Edit item Edit item
Provide Feedback