Sex Differences in Depression-Like Behaviors in a Mouse Model of Huntington's Disease
Author Information
Author(s): Renoir Thibault, Zajac Michelle S., Du Xin, Pang Terence Y., Leang Leah, Chevarin Caroline, Lanfumey Laurence, Hannan Anthony J.
Primary Institution: Howard Florey Institute, Florey Neuroscience Institutes, University of Melbourne, Parkville, Australia
Hypothesis
Do male and female R6/1 transgenic HD mice exhibit different depressive-like behaviors associated with serotonergic impairments?
Conclusion
The study found that only female HD mice displayed significant depressive-like behaviors, which were alleviated by sertraline treatment.
Supporting Evidence
- Only female HD mice showed increased immobility in the forced-swimming test.
- Sertraline treatment reduced immobility times in female HD mice.
- Female HD mice had a decreased preference for saccharin compared to wild-type mice.
- Behavioral deficits were not observed in male HD mice at this age.
- Serotonin levels were lower in both male and female HD mice.
Takeaway
This study shows that girl mice with Huntington's disease act sadder than boy mice, and a medicine helped the sad girl mice feel better.
Methodology
The study used R6/1 transgenic HD mice to assess depressive-like behaviors through various tests including the forced-swimming test and saccharin preference test.
Potential Biases
Potential bias in interpreting behavioral results due to the subjective nature of some assessments.
Limitations
The study was limited to a specific age of mice and may not fully represent the progression of depression in HD across different ages.
Participant Demographics
The study involved 8-week-old male and female R6/1 transgenic HD mice.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website