Increased Glucose Tolerance in Transgenic Mice with RXRγ Overexpression
Author Information
Author(s): Sugita Satoshi, Kamei Yasutomi, Akaike Fumiko, Suganami Takayoshi, Kanai Sayaka, Hattori Maki, Manabe Yasuko, Fujii Nobuharu, Takai-Igarashi Takako, Tadaishi Miki, Oka Jun-Ichiro, Aburatani Hiroyuki, Yamada Tetsuya, Katagiri Hideki, Kakehi Saori, Tamura Yoshifumi, Kubo Hideo, Nishida Kenichi, Miura Shinji, Ezaki Osamu, Ogawa Yoshihiro
Primary Institution: Tokyo Medical and Dental University
Hypothesis
Does overexpression of RXRγ in skeletal muscle enhance glucose metabolism in mice?
Conclusion
Transgenic mice overexpressing RXRγ showed increased glucose metabolism and tolerance, potentially offering a new strategy for treating type 2 diabetes.
Supporting Evidence
- RXRγ mice had lower blood glucose levels compared to control mice.
- Glut1 expression was significantly increased in RXRγ mice.
- RXRγ mice showed higher glucose uptake in skeletal muscle.
- Insulin tolerance tests showed no significant difference between RXRγ and control mice.
Takeaway
Mice with extra RXRγ in their muscles can handle sugar better, which might help people with diabetes.
Methodology
The study involved glucose and insulin tolerance tests, hyperinsulinemic-euglycemic clamp studies, and gene expression analysis.
Limitations
The transgene expression level in RXRγ mice was very high, potentially beyond physiological levels.
Participant Demographics
Mice were male, aged 12 weeks.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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