Time Restricted Feeding and Ketosis Affect Gene Expression in Aged Rats
Author Information
Author(s): Sarah Ding, Anisha Banerjee, Sara N. Burke, Abbi R. Hernandez
Primary Institution: University of Alabama at Birmingham, Heersink School of Medicine
Hypothesis
How do time restricted feeding and ketogenic diets influence metabolism-related gene expression in aged rats?
Conclusion
The study found that diet and tissue type significantly influence metabolism-related gene expression in aged rats.
Supporting Evidence
- AKT expression was significantly reduced in kTRF fed rats within liver and muscle tissue.
- Higher levels of FOXO1 gene expression correlated with poorer cognitive performance in ad libitum fed rats.
- Both TRF-fed groups learned an object-in-place rule in fewer trials than ad lib control fed rats.
Takeaway
Feeding rats at specific times and changing their diet can change how their bodies work, especially as they get older.
Methodology
Rats were divided into three diet groups and fed different diets for a significant portion of their lives, followed by analysis of gene expression in various tissues.
Potential Biases
Potential bias in interpreting gene expression data as decreased expression could indicate either impaired protein generation or decreased need for transcription.
Limitations
The study only included male rats, which may limit the generalizability of the findings.
Participant Demographics
33 male Fisher 344 × Brown Norway rats aged 8–25 months.
Statistical Information
P-Value
p = 0.009
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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