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The antinociceptive effects of garlic have shown promise in treating different chronic diseases in humans, such as knee osteoarthritis, rheumatoid arthritis and peripheral arterial occlusive disease stage II. The most common garlic products are garlic powder (dried garlic), steam distilled garlic oils, garlic oil macerate and aged garlic extract. These commercial products contain organosulphur compounds (OSCs) that have been extensively evaluated in preclinical models and some clinical assays to treat different diseases against pain. In this review, we describe the importance of some bioactive compounds found in garlic and their role in treating pain.A systematic search of the literature in Dimensions, PubMed, Scopus, and Web of Science was performed. Terms and preselected keywords relating to garlic, its derivatives and organusulphure compounds in acute, chronic and neuropathic pain, were used to perform a systematic literature search. Two independent reviewers screened the papers for inclusion and assessed the methodological quality.The antinociceptive activity of garlic and its OSC is related to its antioxidant and anti-inflammatory properties, which may be explained by the ability to block the synthesis of PGs, pro-inflammatory cytokines and interferon-γ, by the reduction COX-2 activity and increasing the levels of anti-inflammatory cytokines. Besides, garlic extract is an activator of TRPA1 and TRPV1, where the principal responsible for this activation are OSC.The relationship between these pathways allows a better understanding how garlic and its derivates could be carrying out its pharmacological action over the management of acute and chronic pain and provide a base by further investigations.Antinociceptive effect of garlic and its OSCs has been extensively evaluated in preclinical models and clinical assays to treat different diseases, contributing to the modulation of inflammation as an essential factor in reducing pain. The current review emphasizes the potential therapeutic effect of garlic and its derivatives in treatment of pain and related mechanisms of action. Moreover, it provides information about the potential clinical use in patients with painful conditions. |
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