Anti-allodynic Effect of Mangiferin in Rats With Chronic Post-ischemia Pain: A Model of Complex Regional Pain Syndrome Type I
| Autor: | Zenia Pardo-Ruiz, Addis Bellma Menéndez, Jozi Godoy-Figueiredo, Evelyn Spencer, René Delgado-Hernández, Gabino Garrido, Sérgio H. Ferreira, Bárbara B. Garrido-Suárez, Marian Castro-Labrada |
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| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
Analgesic Pharmacology mangiferin 03 medical and health sciences 0302 clinical medicine Prazosin Medicine Pharmacology (medical) Amitriptyline Original Research adrenergic receptor chronic post-ischemia pain business.industry lcsh:RM1-950 complex regional pain syndrome Clonidine Yohimbine lcsh:Therapeutics. Pharmacology 030104 developmental biology Opioid sympathetically maintained pain Morphine medicine.symptom business 030217 neurology & neurosurgery Vasoconstriction medicine.drug |
| Zdroj: | Frontiers in Pharmacology Frontiers in Pharmacology, Vol 9 (2018) |
| ISSN: | 1663-9812 |
| DOI: | 10.3389/fphar.2018.01119 |
| Popis: | The present study reproduces chronic post-ischemia pain (CPIP), a model of complex regional pain syndrome type I (CRPS-I), in rats to examine the possible transient and long-term anti-allodynic effect of mangiferin (MG); as well as its potential beneficial interactions with some standard analgesic drugs and sympathetic-mediated vasoconstriction and vasodilator agents during the earlier stage of the pathology. A single dose of MG (50 and 100 mg/kg, p.o.) decreased mechanical allodynia 72 h post-ischemia-reperfusion (I/R). MG 100 mg/kg, i.p. (pre- vs. post-drug) increased von Frey thresholds in a yohimbine and naloxone-sensitive manner. Sub-effective doses of morphine, amitriptyline, prazosin, clonidine and a NO donor, SIN-1, in the presence of MG were found to be significantly anti-allodynic. A long-term anti-allodynic effect at 7 and 13 days post-I/R after repeated oral doses of MG (50 and 100 mg/kg) was also observed. Further, MG decreased spinal and muscle interleukin-1β concentration and restored muscle redox status. These results indicate that MG has a transient and long-term anti-allodynic effect in CPIP rats that appears to be at least partially attributable to the opioid and α2 adrenergic receptors. Additionally, its anti-inflammatory and antioxidant mechanisms could also be implicated in this effect. The association of MG with sub-effective doses of these drugs enhances the anti-allodynic effect; however, an isobolographic analysis should be performed to define a functional interaction between them. These findings suggest the possible clinical use of MG in the treatment of CRPS-I in both early sympathetically maintained pain and long-term sympathetically independent pain. |
| Databáze: | OpenAIRE |
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