[HTML][HTML] The short chain fatty acid propionate stimulates GLP-1 and PYY secretion via free fatty acid receptor 2 in rodents
A Psichas, ML Sleeth, KG Murphy, L Brooks… - International journal of …, 2015 - nature.com
A Psichas, ML Sleeth, KG Murphy, L Brooks, GA Bewick, AC Hanyaloglu, MA Ghatei…
International journal of obesity, 2015•nature.comMethods: We used Wistar rats, C57BL6 mice and free fatty acid receptor 2 knockout (FFA−/−)
mice on a C57BL6 background to explore the impact of the SCFA propionate on PYY and
GLP-1 release. Isolated colonic crypt cultures were used to assess the effects of propionate
on gut hormone release in vitro. We subsequently developed an in vivo technique to assess
gut hormone release into the portal vein following colonic infusion of propionate. Results:
Propionate stimulated the secretion of both PYY and GLP-1 from wild-type primary murine …
mice on a C57BL6 background to explore the impact of the SCFA propionate on PYY and
GLP-1 release. Isolated colonic crypt cultures were used to assess the effects of propionate
on gut hormone release in vitro. We subsequently developed an in vivo technique to assess
gut hormone release into the portal vein following colonic infusion of propionate. Results:
Propionate stimulated the secretion of both PYY and GLP-1 from wild-type primary murine …
Methods:
We used Wistar rats, C57BL6 mice and free fatty acid receptor 2 knockout (FFA−/−) mice on a C57BL6 background to explore the impact of the SCFA propionate on PYY and GLP-1 release. Isolated colonic crypt cultures were used to assess the effects of propionate on gut hormone release in vitro. We subsequently developed an in vivo technique to assess gut hormone release into the portal vein following colonic infusion of propionate.
Results:
Propionate stimulated the secretion of both PYY and GLP-1 from wild-type primary murine colonic crypt cultures. This effect was significantly attenuated in cultures from FFA2−/− mice. Intra-colonic infusion of propionate elevated PYY and GLP-1 levels in jugular vein plasma in rats and in portal vein plasma in both rats and mice. However, propionate did not significantly stimulate gut hormone release in FFA2−/− mice.
Conclusions:
Intra-colonic administration of propionate stimulates the concurrent release of both GLP-1 and PYY in rats and mice. These data demonstrate that FFA2 deficiency impairs SCFA-induced gut hormone secretion both in vitro and in vivo.
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