PMID- 23187789 OWN - NLM STAT- MEDLINE DCOM- 20130910 LR - 20211021 IS - 1432-2072 (Electronic) IS - 0033-3158 (Linking) VI - 226 IP - 2 DP - 2013 Mar TI - Influence of chronic caffeine on MDMA-induced behavioral and neuroinflammatory response in mice. PG - 433-44 LID - 10.1007/s00213-012-2918-3 [doi] AB - RATIONALE: Previous research suggests that chronic daily caffeine administration protects against brain injury in different animal models of neurodegenerative diseases, such as Parkinson's and Alzheimer's diseases, ischemic and traumatic brain injury, and allergic encephalitis. However, little is known about the effects of chronic caffeine administration on 3,4-methylenedioxymethamphetamine (MDMA)-induced neuroinflammation. OBJECTIVE: The present study examines whether chronic caffeine (10, 20, or 30 mg/kg, i.p, for 21 consecutive days) protects against MDMA-induced astrocytic and microglial activation in mice striatum, impairing its neuroinflammatory effects. Additionally, locomotor activity, sensoriomotor reflexes, body temperature, and anxiety were evaluated after caffeine injection on days 0 (basal), 7, 14, and 21 of the chronic treatment in order to assess possible behavioral alterations due to caffeine administration. METHODS: On day 22, mice pretreated with caffeine or saline received a neurotoxic regimen of MDMA (3 x 20 mg/kg, i.p., 2-h interval) or saline, and changes in body temperature were evaluated. Forty-eight hours after last MDMA or saline injection (day 24), the aforementioned behavioral parameters were investigated and microglia and astroglia activation to MDMA treatment was examined in the mouse striatum. RESULTS: Caffeine (10 mg/kg) chronically administered completely prevented MDMA-induced glial activation without inducing physiological or behavioral alterations in any of the assays performed. CONCLUSION: Chronic caffeine consumption at low doses exerts anti-inflammatory effects and prevents MDMA-induced neuroinflammation. FAU - Ruiz-Medina, Jessica AU - Ruiz-Medina J AD - Grup de Recerca en Neurobiologia del Comportament-GReNeC, Departamento de Ciencies Experimentals i de la Salut, Universitat Pompeu Fabra, C/Dr. Aiguader 88, 08003 Barcelona, Spain. FAU - Pinto-Xavier, Ana AU - Pinto-Xavier A FAU - Rodriguez-Arias, Marta AU - Rodriguez-Arias M FAU - Minarro, Jose AU - Minarro J FAU - Valverde, Olga AU - Valverde O LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20121129 PL - Germany TA - Psychopharmacology (Berl) JT - Psychopharmacology JID - 7608025 RN - 0 (Central Nervous System Stimulants) RN - 3G6A5W338E (Caffeine) RN - KE1SEN21RM (N-Methyl-3,4-methylenedioxyamphetamine) SB - IM MH - Animals MH - Anxiety/chemically induced MH - Astrocytes/*drug effects/metabolism MH - Behavior, Animal/drug effects MH - Body Temperature/drug effects MH - Caffeine/*pharmacology MH - Central Nervous System Stimulants/*pharmacology MH - Corpus Striatum/drug effects/metabolism MH - Dose-Response Relationship, Drug MH - Locomotion/drug effects MH - Male MH - Mice MH - Microglia/*drug effects/metabolism MH - N-Methyl-3,4-methylenedioxyamphetamine/administration & dosage/*pharmacology MH - Neurotoxicity Syndromes/*prevention & control MH - Reflex/drug effects MH - Time Factors EDAT- 2012/11/29 06:00 MHDA- 2013/09/11 06:00 CRDT- 2012/11/29 06:00 PHST- 2012/06/15 00:00 [received] PHST- 2012/10/31 00:00 [accepted] PHST- 2012/11/29 06:00 [entrez] PHST- 2012/11/29 06:00 [pubmed] PHST- 2013/09/11 06:00 [medline] AID - 10.1007/s00213-012-2918-3 [doi] PST - ppublish SO - Psychopharmacology (Berl). 2013 Mar;226(2):433-44. doi: 10.1007/s00213-012-2918-3. Epub 2012 Nov 29.