title: Non-competitive metabotropic glutamate subtype 5 receptor antagonist (SIB-1893) decreases body temperature in rats.
abstract: This study examined the effect of (E)-2-methyl-6-(2-phenylethynyl)-pyridine (SIB-1893), a selective non-competitive metabotropic glutamate subtype 5 receptor (mGluR5) antagonist, on body temperature in freely moving Wistar rats. Temperature was monitored using programmed microchips, implanted subcutaneously in rats, at several times: 0, 5, 10, 20, 30, 45, 60, 90, 120 and 180 min after intraperitoneal administration of SIB-1893 at increasing doses of 10, 20 and 30 mg/kg. The results analyzed with two-way ANOVA with repeated measures on time revealed that SIB-1893 at 30 mg/kg considerably lowered the body temperature in animals at 90, 120 and 180 min after its systemic injection. In contrast, the drug at 10 and 20 mg/kg remained without effect on the body temperature in rats. Based on our preclinical study, one can conclude that SIB-1893 produces hypothermia in freely moving rats in a dose-dependent manner.
authors.affiliation: Department of Pathophysiology, Medical University of Lublin, Jaczewskiego 8, PL 20-090 Lublin, Poland. jarogniew.luszczki@am.lublin.pl
authors.forename: Jarogniew J
authors.initials: JJ
authors.lastname: Łuszczki
authors.forename: Kinga K
authors.initials: KK
authors.lastname: Borowicz
authors.forename: Stanisław J
authors.initials: SJ
authors.lastname: Czuczwar
mesh_terms: D000704:Analysis of Variance; D000818:Animals; D001831:Body Temperature / Q000187:drug effects*; D004305:Dose-Response Relationship, Drug; D007036:Hypothermia, Induced; D008297:Male; D011725:Pyridines / Q000494:pharmacology*; D051381:Rats; D017208:Rats, Wistar; D064529:Receptor, Metabotropic Glutamate 5; D018094:Receptors, Metabotropic Glutamate / Q000187:drug effects* / Q000378:metabolism; D013997:Time Factors
chemical_list: C578937:Grm5 protein, rat; D011725:Pyridines; D064529:Receptor, Metabotropic Glutamate 5; D018094:Receptors, Metabotropic Glutamate; C120148:SIB 1893