{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,19]],"date-time":"2026-05-19T18:26:03Z","timestamp":1779215163749,"version":"3.51.4"},"reference-count":39,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2009,2,2]],"date-time":"2009-02-02T00:00:00Z","timestamp":1233532800000},"content-version":"vor","delay-in-days":2711,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["bpspubs.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["British J Pharmacology"],"published-print":{"date-parts":[[2001,9]]},"abstract":"<jats:p>\n<jats:list list-type=\"explicit-label\">\n<jats:list-item>\n<jats:p>Recent studies have shown beneficial effects of an adenosine A<jats:sub>2A<\/jats:sub> receptor agonist in <jats:italic>dt<jats:sup>sz<\/jats:sup><\/jats:italic> mutant hamsters, an animal model of paroxysmal dystonia, in which stress and consumption of coffee can precipitate dystonic attacks. This prompted us to examine the effects of adenosine receptor agonists and antagonists on severity of dystonia in <jats:italic>dt<jats:sup>sz<\/jats:sup><\/jats:italic> hamsters in more detail.<\/jats:p>\n<\/jats:list-item>\n<jats:list-item>\n<jats:p>The non\u2010selective adenosine A<jats:sub>1<\/jats:sub>\/A<jats:sub>2A<\/jats:sub> receptor antagonists, caffeine (10\u2003\u2013\u200320\u2003mg\u2003kg<jats:sup>\u22121<\/jats:sup> i.p.) and theophylline (10\u2003\u2013\u200330\u2003mg\u2003kg<jats:sup>\u22121<\/jats:sup> s.c.), worsened the dystonia in <jats:italic>dt<jats:sup>sz<\/jats:sup><\/jats:italic> hamsters.<\/jats:p>\n<\/jats:list-item>\n<jats:list-item>\n<jats:p>Aggravation of dystonia was also caused by the selective adenosine A<jats:sub>1<\/jats:sub>\/A<jats:sub>2A<\/jats:sub> antagonist CGS 15943 (9\u2010chloro2\u20102\u2010furyl)[1,2,4]triazolo[1,5\u2010c]quinazolin\u20105\u2010amine) at a dose of 30\u2003mg\u2003kg<jats:sup>\u22121<\/jats:sup> i.p. and by the adenosine A<jats:sub>1<\/jats:sub> antagonist DPCPX (8\u2010cyclopentyl\u20101,3\u2010dipropylxanthine; 20\u2003\u2013\u200330\u2003mg\u2003kg<jats:sup>\u22121<\/jats:sup> i.p.), while the A<jats:sub>2<\/jats:sub> antagonist DMPX (3,7\u2010dimethyl\u20101\u2010propargylxanthine; 2\u2003\u2013\u20034\u2003mg\u2003kg<jats:sup>\u22121<\/jats:sup> i.p.) and the highly selective A<jats:sub>2A<\/jats:sub> antagonist ZM 241385 (4\u2010(2\u2010[7\u2010amino\u20102\u2010(2\u2010furyl)[1,2,4]triazolo[2,3\u2010a][1,3,5]triazin\u20105\u2010ylamino]ethyl)phenol; 2\u2003\u2013\u20035\u2003mg\u2003kg<jats:sup>\u22121<\/jats:sup> i.p.) failed to exert any effects on dystonia.<\/jats:p>\n<\/jats:list-item>\n<jats:list-item>\n<jats:p>In contrast to the antagonists, both the adenosine A<jats:sub>1<\/jats:sub> receptor agonist CPA (N<jats:sup>6<\/jats:sup>\u2010cyclopentyladenosine; 0.1\u2003\u2013\u20031.0\u2003mg\u2003kg<jats:sup>\u22121<\/jats:sup> i.p.) and the A<jats:sub>2A<\/jats:sub> agonist CGS 21680 (2<jats:italic>p<\/jats:italic>\u2010(2carboxyethylphen\u2010ethylamino\u20105\u2032\u2010N\u2010ethylcarboxamindoadenosine; 0.1\u2003\u2013\u20032.0\u2003mg\u2003kg<jats:sup>\u22121<\/jats:sup> i.p.) exerted a striking improvement of dystonia.<\/jats:p>\n<\/jats:list-item>\n<jats:list-item>\n<jats:p>These data suggest that the precipitating effects of methylxanthines are, at least in part, related to their adenosine receptor antagonistic action.<\/jats:p>\n<\/jats:list-item>\n<jats:list-item>\n<jats:p>Although adenosine receptor agonists can be regarded as interesting candidates for the therapy of paroxysmal dystonia, adverse effects may limit the therapeutic potential of adenosine A<jats:sub>1<\/jats:sub> agonists, while beneficial effects of the adenosine A<jats:sub>2A<\/jats:sub> agonist CGS 21680 were already found at well tolerated doses.<\/jats:p>\n<\/jats:list-item>\n<\/jats:list>\n<\/jats:p><jats:p><jats:italic>British Journal of Pharmacology<\/jats:italic> (2001) <jats:bold>134<\/jats:bold>, 343\u2013352; doi:<jats:ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"doi\" xlink:href=\"10.1038\/sj.bjp.0704268\">10.1038\/sj.bjp.0704268<\/jats:ext-link><\/jats:p>","DOI":"10.1038\/sj.bjp.0704268","type":"journal-article","created":{"date-parts":[[2005,1,28]],"date-time":"2005-01-28T22:01:54Z","timestamp":1106949714000},"page":"343-352","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Effects of adenosine receptor agonists and antagonists in a genetic animal model of primary paroxysmal dystonia"],"prefix":"10.1111","volume":"134","author":[{"given":"Angelika","family":"Richter","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Melanie","family":"Hamann","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2009,2,2]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1471-4159.1989.tb09224.x"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1093\/brain\/117.4.859"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/ana.410380405"},{"key":"e_1_2_7_5_1","first-page":"311","volume-title":"Movement Disorders 3","author":"FAHN S.","year":"1994"},{"key":"e_1_2_7_6_1","first-page":"1","volume-title":"Advances in Neurology, vol. 78, Dystonia 3","author":"FAHN S.","year":"1998"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1523\/JNEUROSCI.13-12-05402.1993"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1460-9568.1996.tb01617.x"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0166-2236(97)01096-5"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/0306-4522(92)90291-9"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.49.1.177"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0773.1995.tb00111.x"},{"key":"e_1_2_7_13_1","first-page":"143","article-title":"Nomenclature and classification of purinoceptors","volume":"46","author":"FREDHOLM B.B.","year":"1994","journal-title":"Pharmacol. 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