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Article Publish Status: FREE
Abstract Title:

Antinociceptive effect of chrysin in diabetic neuropathy and formalin-induced pain models.

Abstract Source:

Anim Cells Syst (Seoul). 2020 May 25 ;24(3):143-150. Epub 2020 May 25. PMID: 33209194

Abstract Author(s):

Jae-Seung Hong, Jing-Hui Feng, Jung-Seok Park, Hee-Jung Lee, Jae-Yong Lee, Soon-Sung Lim, Hong-Won Suh

Article Affiliation:

Jae-Seung Hong

Abstract:

Chrysin, a natural flavonoid, is the main ingredient of many medicinal plants, which shows potent pharmacological properties. In the present study, the antinociceptive effects of chrysin were examined in ICR mice. Chrysin orally administered at the doses of from 10 to 100 mg/kg exerted the reductions of formalin-induced pain behaviors observed during the second phase in the formalin test in a dose-dependent manner. In addition, the antinociceptive effect of chrysin was further characterized in streptozotocin-induced diabetic neuropathy model. Oral administration chrysin caused reversals of decreased pain threshold observed in diabetic-induced peripheral neuropathy model. Intraperitoneally (i.p.) pretreatment with naloxone (a classic opioid receptor antagonist), but not yohimbine (an antagonist of α2-adrenergic receptors) or methysergide (an antagonist of serotonergic receptors), effectively reversed chrysin-induced antinociceptive effect in the formalin test. Moreover, chrysin caused a reduction of formalin-induced up-regulated spinal p-CREB level, which was also reversed by i.t. pretreated naloxone. Finally, chrysin also suppressed the increase of the spinal p-CREB level induced by diabetic neuropathy. Our results suggest that chrysin shows an antinociceptive property in formalin-induced pain and diabetic neuropathy models. In addition, spinal opioid receptors and CREB protein appear to mediate chrysin-induced antinociception in the formalin-induced pain model.

Study Type : Animal Study
Additional Links
Pharmacological Actions : Antinoceceptive : CK(647) : AC(197)

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