A recent study suggested that essential oil isolated from Chaste tree berry may have a potential effect in reduced neuro-pain through antinociceptive function in tested subjects.
The antinociceptive effect is the activity of reduced pain through interference with information transmitted and received by brain neurons.
Chaste tree berry is a species of Vitex agnus-castus, genus Vitex, belonging to the family Lamiaceae, native to the Mediterranean region, used in herbal medicine for thousands of years as an aphrodisiac herb and considered a Queen herb in treating menstrual problems and discomforts.
In the study of three behavioral models of nociception in adult male Wistar rats conducted by the University of Tabriz, the topical essential oil extracted from Vitexagnus-castus (EOVAC) was applied to animals expressed a reduced pain response in tail immersion tests, inhibited the acetic acid-induced writhing response with little adverse effects.
Dr. Khalilzadeh E, the lead author said, " major components of the EOVAC were α-pinene (14.83%), limonene (10.29%), β-caryophyllene (6.9%), sabinene (5.27%), and β-farnesene (5.9%), (may have direct influence to the) endogenous opioidergic system, as well as muscarinergic receptors of the cholinergic system, may be involved in the antinociceptive activity of Vitex agnus-castus essential oil in these models of pain in rats".
Interestingly, the extract of herbal medicine also displayed a strong effect against chronic inflammation in induced pain.
The joint study led by the Federal University of Santa Maria suggested that crude extract caused antinociceptive/antidepressant-like effects in the CFA-induced chronic inflammation model incomparable to naloxone, without altered inflammatory parameters at doses of 10mg/kg,
This result indicated that The VmE extract demonstrated pain relief by inducing opioid-dependent antinociception and antidepressant-like effects, without anti-inflammatory activity.
Furthermore, in the investigated petroleum ether fraction (PEF) from the aqueous ethanol extract of Chaste tree berry in several nociceptive mouse models, mouses treated with the fraction produced significant dose-related inhibitions on chemical nociception incomparable to Naloxone (1 mg/kg BW subcutaneously), a non-selected opioid receptor antagonist.
In the xylene-induced ear edema test, the fraction also exerted strong analgesic effects partially mediated by its anti-inflammatory activity.
Taking together, Chaste tree berry may have a therapeutic potential to be used as an antinociceptive functional food in reduced pain by blocking the information transfer by neurotransmitters.
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Author Biography
Kyle J. Norton, Master of Nutrients
Health article writer and researcher; Over 10.000 articles and research papers have been written and published on line, including world wide health, ezine articles, article base, healthblogs, selfgrowth, best before it's news, the karate GB daily, etc.,.
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Some articles have been used as references in medical research, such as international journal Pharma and Bio science, ISSN 0975-6299.
Sources
(1) Antinociceptive effects, acute toxicity and chemical composition of Vitex agnus-castus essential oil by Khalilzadeh E, Vafaei Saiah G, Hasannejad H, Ghaderi A, Ghaderi S, Hamidian G, Mahmoudi R, Eshgi D, Zangisheh M.(PubMed)
(2) Antinociceptive and antidepressant-like effects of the crude extract of Vitexmegapotamica in rats by Hamann FR1, Zago AM2, Rossato MF3, Beck VR4, Mello CF4, de Brum TF5, de Carvalho LM6, Faccin H6, Oliveira SM7, Rubin MA8(PubMed)
(3) Antinociceptive activities of the liposoluble fraction from Vitex negundo seeds by Zheng CJ1, Huang BK, Han T, Zhang QY, Zhang H, Rahman K, Qin LP.(PubMed)
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