Title : Hypothalamic GPR40 signaling activated by free long chain fatty acids suppresses CFA-induced inflammatory chronic pain.

Pub. Date : 2013

PMID : 24349089






10 Functional Relationships(s)
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1 Hypothalamic GPR40 signaling activated by free long chain fatty acids suppresses CFA-induced inflammatory chronic pain. long chain fatty acids free fatty acid receptor 1 Mus musculus
2 GPR40 has been reported to be activated by long-chain fatty acids, such as docosahexaenoic acid (DHA). long-chain fatty acids free fatty acid receptor 1 Mus musculus
3 GPR40 has been reported to be activated by long-chain fatty acids, such as docosahexaenoic acid (DHA). Docosahexaenoic Acids free fatty acid receptor 1 Mus musculus
4 GPR40 has been reported to be activated by long-chain fatty acids, such as docosahexaenoic acid (DHA). Docosahexaenoic Acids free fatty acid receptor 1 Mus musculus
5 These increases were significantly inhibited by the intracerebroventricular injection of flavopiridol (15 nmol), a cyclin-dependent kinase inhibitor, depending on the decreases in both the increment of GPR40 protein expression and the induction of mechanical allodynia and thermal hyperalgesia at day 7 after CFA injection. alvocidib free fatty acid receptor 1 Mus musculus
6 The intracerebroventricular injection of DHA (50 microg) and GW9508 (1.0 microg), a GPR40-selective agonist, significantly reduced mechanical allodynia and thermal hyperalgesia at day 7, but not at day 1, after CFA injection. Docosahexaenoic Acids free fatty acid receptor 1 Mus musculus
7 The intracerebroventricular injection of DHA (50 microg) and GW9508 (1.0 microg), a GPR40-selective agonist, significantly reduced mechanical allodynia and thermal hyperalgesia at day 7, but not at day 1, after CFA injection. GW9508 free fatty acid receptor 1 Mus musculus
8 These effects were inhibited by intracerebroventricular pretreatment with GW1100 (10 microg), a GPR40 antagonist. GW1100 free fatty acid receptor 1 Mus musculus
9 The protein expression of GPR40 was colocalized with that of beta-endorphin and proopiomelanocortin, and a single intracerebroventricular injection of GW9508 (1.0 microg) significantly increased the number of neurons double-stained for c-Fos and proopiomelanocortin in the arcuate nucleus of the hypothalamus. GW9508 free fatty acid receptor 1 Mus musculus
10 Our findings suggest that hypothalamic GPR40 activated by free long chain fatty acids might have an important role in this pain control system. long chain fatty acids free fatty acid receptor 1 Mus musculus