Impact of NRF2 Inhibition on Colon Function and Estrogen Receptor Expression in Mice
Author Information
Author(s): Piechota-Polanczyk Aleksandra, Mariwani Zanya, Fichna Jakub, Polanczyk Andrzej, Jozkowicz Alicja
Primary Institution: Medical University of Lodz
Hypothesis
Does chemical inhibition of NRF2 transcriptional activity influence distal colon contractions and oestrogen receptor signalling in female mice?
Conclusion
ML385 decreases NRF2 transcriptional activity in the colon, affecting contractility and goblet cell numbers, with age-related differences in response.
Supporting Evidence
- ML385 treatment significantly downregulated NRF2 activity in both young and older mice.
- Older mice showed a marked delay in bead expulsion, which was improved with ML385 treatment.
- Young mice treated with ML385 had an increase in goblet cell numbers.
- ML385 did not affect serum oestradiol levels in either age group.
- ERĪ± levels increased in younger mice treated with ML385, counteracting age-related decline.
Takeaway
This study shows that a drug can change how the colon works and how certain hormones are expressed in older and younger female mice.
Methodology
The study involved treating 3 and 6-month-old female mice with ML385 or a vehicle for 7 days, followed by various tests including colon bead expulsion and histological analyses.
Potential Biases
Potential bias in the selection of age groups and treatment duration.
Limitations
The study focused only on female mice and did not explore long-term effects of NRF2 inhibition.
Participant Demographics
Female C57BL/6J mice aged 3 and 6 months.
Statistical Information
P-Value
0.0095
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website