Paternal multigenerational exposure to an obesogenic diet drives epigenetic predisposition to metabolic diseases in mice.
Elife
; 102021 03 30.
Article
in En
| MEDLINE
| ID: mdl-33783350
ABSTRACT
Obesity is a growing societal scourge. Recent studies have uncovered that paternal excessive weight induced by an unbalanced diet affects the metabolic health of offspring. These reports mainly employed single-generation male exposure. However, the consequences of multigenerational unbalanced diet feeding on the metabolic health of progeny remain largely unknown. Here, we show that maintaining paternal Western diet feeding for five consecutive generations in mice induces an enhancement in fat mass and related metabolic diseases over generations. Strikingly, chow-diet-fed progenies from these multigenerational Western-diet-fed males develop a 'healthy' overweight phenotype characterized by normal glucose metabolism and without fatty liver that persists for four subsequent generations. Mechanistically, sperm RNA microinjection experiments into zygotes suggest that sperm RNAs are sufficient for establishment but not for long-term maintenance of epigenetic inheritance of metabolic pathologies. Progressive and permanent metabolic deregulation induced by successive paternal Western-diet-fed generations may contribute to the worldwide epidemic of metabolic diseases.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Paternal Exposure
/
Genetic Predisposition to Disease
/
Epigenesis, Genetic
/
Diet, High-Fat
/
Metabolic Diseases
Limits:
Animals
Language:
En
Journal:
Elife
Year:
2021
Document type:
Article
Affiliation country:
France