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Depression: 21st Century Solutions + The Dark Side of Wheat

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Abstract Title:

β-caryophyllene, a dietary cannabinoid, complexed with β-cyclodextrin produced anti-hyperalgesic effect involving the inhibition of Fos expression in superficial dorsal horn.

Abstract Source:

Life Sci. 2016 Mar 15 ;149:34-41. Epub 2016 Feb 13. PMID: 26883973

Abstract Author(s):

Lucindo J Quintans-Júnior, Adriano A S Araújo, Renan G Brito, Priscila L Santos, Jullyana S S Quintans, Paula P Menezes, Mairim R Serafini, Gabriel F Silva, Flavio M S Carvalho, Nicole K Brogden, Kathleen A Sluka

Article Affiliation:

Lucindo J Quintans-Júnior

Abstract:

AIMS: Evaluate the anti-hyperalgesic effect of the complex containingβ-caryophyllene (βCP) and β-cyclodextrin (βCD) in a non-inflammatory chronic muscle pain mice model and investigated its action on superficial dorsal horn of the lumbar spinal cord.

MAIN METHODS: TheβCP-βCD complex were prepared and characterized through the DSC, TG/DTG, FTIR, XRD and SEM. The model of chronic muscle pain was induced by two injections of pH4.0 saline (20μL) into left gastrocnemius 5days apart. After confirming hyperalgesia, male mice were treated with βCP-βCD (10 or 20mg/kg; p.o.) or vehicle (saline 0.9%, p.o.) daily for 9days. 1h after, the mechanical hyperalgesia, muscle withdrawal thresholds and motor performance were evaluated. To evaluate the βCP-βCD action on spinal cord, animals induced with chronic muscle pain were treated with βCP-βCD (20mg/kg; p.o.) orvehicle (saline 0.9%, p.o.) and 90min. after, were perfused, the lumbar spinal cord collected, crioprotected, cut and submitted in an immunofluorescence protocol for Fos protein.

KEY FINDINGS: The characterization tests indicated thatβCP were efficiently incorporated into βCD. The oral treatment with βCP-βCD, at all doses tested, produced a significant (p<0.05) reduction on mechanical hyperalgesia and a significant (p<0.05) increase in muscle withdrawal thresholds, without produce any alteration in force. In addition,βCP-βCD was able to significantly (p<0.05) decrease Fos expression in the superficial dorsal horn.

SIGNIFICANCE: Thus,βCP-βCD attenuates the non-inflammatory chronic muscle pain in mice and inhibits the Fos expression in the lumbar spinal cord.

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Sayer Ji
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Depression: 21st Century Solutions + The Dark Side of Wheat

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