Gene Expression Atlas of the Mouse Brain: Age, Diet, and Gender Effects
Author Information
Author(s): Xu Xiangru, Zhan Ming, Duan Wenzhen, Prabhu Vinayakumar, Brenneman Randall, Wood William, Firman Jeff, Li Huai, Zhang Peisu, Ibe Carol, Zonderman Alan B, Longo Dan L, Poosala Suresh, Becker Kevin G, Mattson Mark P
Primary Institution: National Institute on Aging Intramural Research Program
Hypothesis
How do age, energy intake, and gender affect gene expression in the mouse central nervous system?
Conclusion
The study found that mouse CNS transcriptomes respond to age, energy intake, and gender in distinct ways across different brain regions.
Supporting Evidence
- Less than 10% of genes were significantly affected by age, diet, or gender.
- The spinal cord transcriptome was the most responsive to age, diet, and gender.
- Gender and energy restriction had robust influences on the hippocampal transcriptome of middle-aged mice.
- The study included RNA samples from five different CNS regions.
- The analysis revealed distinct patterns of gene expression for each CNS region.
Takeaway
Scientists looked at how age, diet, and gender change the way genes work in different parts of a mouse's brain, and they found that each part reacts differently.
Methodology
The study measured gene expression in five brain regions of male and female mice at three different ages using microarray technology.
Potential Biases
Potential bias due to the limited genetic background of the mice used in the study.
Limitations
The study primarily focused on male and female mice without considering other genders or species.
Participant Demographics
C57BL/6 mice, both male and female, aged 6, 16, and 24 months.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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