title: Cardamonin attenuates hyperalgesia and allodynia in a mouse model of chronic constriction injury-induced neuropathic pain: Possible involvement of the opioid system.
abstract: Neuropathic pain arises from the injury of nervous system. The condition is extremely difficult to be treated due to the ineffectiveness and presence of various adverse effects of the currently available drugs. In the present study, we investigated the antiallodynic and antihyperlagesic properties of cardamonin, a naturally occurring chalcone in chronic constriction injury (CCI)-induced neuropathic pain mice model. Our findings showed that single and repeated dose of intra-peritoneal administration of cardamonin (3, 10, 30mg/kg) significantly inhibited (P<0.001) the chronic constriction injury-induced neuropathic pain using the Hargreaves plantar test, Randall-Selitto analgesiometer test, dynamic plantar anesthesiometer test and the cold plate test in comparison with the positive control drug used (amitriptyline hydrochloride, 20mg/kg, i.p.). Pre-treatment with naloxone hydrochloride (1mg/kg, i.p.) and naloxone methiodide (1mg/kg, s.c) significantly reversed the antiallodynic and antihyperalgesic effects of cardamonin in dynamic plantar anesthesiometer test and Hargreaves plantar test, respectively. In conclusion, the current findings demonstrated novel antiallodynic and antihyperalgesic effects of cardamonin through the activation of the opioidergic system both peripherally and centrally and may prove to be a potent lead compound for the development of neuropathic pain drugs in the future.
authors.affiliation: Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia.
authors.forename: Yogesvari
authors.initials: Y
authors.lastname: Sambasevam
authors.affiliation: Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia.
authors.forename: Ahmad Akira
authors.initials: AA
authors.lastname: Omar Farouk
authors.affiliation: Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia.
authors.forename: Tengku Azam Shah
authors.initials: TA
authors.lastname: Tengku Mohamad
authors.affiliation: Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia.
authors.forename: Mohd Roslan
authors.initials: MR
authors.lastname: Sulaiman
authors.affiliation: Biomedical Science Programme, School of Diagnostic and Applied Sciences, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300 Kuala Lumpur, Malaysia.
authors.forename: B Hemabarathy
authors.initials: BH
authors.lastname: Bharatham
authors.affiliation: Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia. Electronic address: enoch@upm.edu.my.
authors.forename: Enoch Kumar
authors.initials: EK
authors.lastname: Perimal
mesh_terms: D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects; D047188:Chalcones / Q000494:pharmacology* / Q000627:therapeutic use; D002908:Chronic Disease; D003250:Constriction; D004195:Disease Models, Animal; D004305:Dose-Response Relationship, Drug; D006930:Hyperalgesia / Q000150:complications / Q000188:drug therapy*; D008297:Male; D051379:Mice; D008813:Mice, Inbred ICR; D009437:Neuralgia / Q000188:drug therapy* / Q000209:etiology / Q000378:metabolism*; D011957:Receptors, Opioid / Q000378:metabolism*; D012584:Sciatic Nerve / Q000187:drug effects / Q000293:injuries
chemical_list: D047188:Chalcones; D011957:Receptors, Opioid; C436747:cardamonin
keywords: Allodynia; Amitriptyline hydrochloride (PubChem CID: 11065), Tribromoethanol (PubChem CID: 6400); CCI; Cardamonin; Cardamonin (PubChem CID: 10424762); Dimethyl sulphoxide (PubChem CID: 679); Hyperalgesia; Iodine (PubChem CID: 410087); Morphine sulphate (PubChem CID: 6321225); Naloxone hydrochloride (PubChem CID: 5464092); Naloxone methiodide (PubChem CID: 16219719); Neuropathic pain