PMID- 22730040 OWN - NLM STAT- MEDLINE DCOM- 20130410 LR - 20240322 IS - 1557-1904 (Electronic) IS - 1557-1890 (Print) IS - 1557-1890 (Linking) VI - 7 IP - 3 DP - 2012 Sep TI - Inflammation in patients with schizophrenia: the therapeutic benefits of risperidone plus add-on dextromethorphan. PG - 656-64 LID - 10.1007/s11481-012-9382-z [doi] AB - Increasing evidence suggests that inflammation contributes to the etiology and progression of schizophrenia. Molecules that initiate inflammation, such as virus- and toxin-induced cytokines, are implicated in neuronal degeneration and schizophrenia-like behavior. Using therapeutic agents with anti-inflammatory or neurotrophic effects may be beneficial for treating schizophrenia. One hundred healthy controls and 95 Han Chinese patients with schizophrenia were tested in this double-blind study. Their PANSS scores, plasma interleukin (IL)-1beta, tumor necrosis factor-alpha (TNF-alpha) and brain-derived neurotrophic factor (BDNF) levels were measured before and after pharmacological treatment. Pretreatment, plasma levels of IL-1beta and TNF-alpha were significantly higher in patients with schizophrenia than in controls, but plasma BDNF levels were significantly lower. Patients were treated with the atypical antipsychotic risperidone (Risp) only or with Risp+ dextromethorphan (DM). PANSS scores and plasma IL-1beta levels significantly decreased, but plasma TNF-alpha and BDNF levels significantly increased after 11 weeks of Risp treatment. Patients in the Risp+ DM group showed a greater and earlier reduction of symptoms than did those in the Risp-only group. Moreover, Risp+ DM treatment attenuated Risp-induced plasma increases in TNF-alpha. Patients with schizophrenia had a high level of peripheral inflammation and a low level of peripheral BDNF. Long-term Risp treatment attenuated inflammation and potentiated the neurotrophic function but also produced a certain degree of toxicity. Risp+ DM was more beneficial and less toxic than Risp-only treatment. CLINICAL TRIAL REGISTRATION: Protocol Record: HR-93-50; TRIAL REGISTRATION NUMBER: NCT01189006; URL: http://www.clinicaltrials.gov. FAU - Chen, Shiou-Lan AU - Chen SL AD - Institute of Behavioral Medicine, Tainan, Taiwan. FAU - Lee, Sheng-Yu AU - Lee SY FAU - Chang, Yun-Hsuan AU - Chang YH FAU - Chen, Shih-Heng AU - Chen SH FAU - Chu, Chun-Hsieh AU - Chu CH FAU - Tzeng, Nian-Sheng AU - Tzeng NS FAU - Lee, I-Hui AU - Lee IH FAU - Chen, Po-See AU - Chen PS FAU - Yeh, Tzung Lieh AU - Yeh TL FAU - Huang, San-Yuan AU - Huang SY FAU - Yang, Yen-Kuang AU - Yang YK FAU - Lu, Ru-Band AU - Lu RB FAU - Hong, Jau-Shyong AU - Hong JS LA - eng SI - ClinicalTrials.gov/NCT01189006 GR - ZIA ES090082-16/Intramural NIH HHS/United States PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20120623 PL - United States TA - J Neuroimmune Pharmacol JT - Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology JID - 101256586 RN - 0 (Inflammation Mediators) RN - 7355X3ROTS (Dextromethorphan) RN - L6UH7ZF8HC (Risperidone) SB - IM EIN - J Neuroimmune Pharmacol. 2012 Dec;7(4):1034. Hong, Jau-Shyong [added] MH - Adult MH - Dextromethorphan/*administration & dosage MH - Double-Blind Method MH - Drug Therapy, Combination MH - Female MH - Humans MH - Inflammation/blood/drug therapy MH - Inflammation Mediators/*blood MH - Male MH - Middle Aged MH - Risperidone/*administration & dosage MH - Schizophrenia/*blood/*drug therapy/*pathology MH - Treatment Outcome MH - Young Adult PMC - PMC3611097 MID - NIHMS451828 COIS- Conflicts of interest None. EDAT- 2012/06/26 06:00 MHDA- 2013/04/11 06:00 PMCR- 2013/03/29 CRDT- 2012/06/26 06:00 PHST- 2012/01/17 00:00 [received] PHST- 2012/06/11 00:00 [accepted] PHST- 2012/06/26 06:00 [entrez] PHST- 2012/06/26 06:00 [pubmed] PHST- 2013/04/11 06:00 [medline] PHST- 2013/03/29 00:00 [pmc-release] AID - 10.1007/s11481-012-9382-z [doi] PST - ppublish SO - J Neuroimmune Pharmacol. 2012 Sep;7(3):656-64. doi: 10.1007/s11481-012-9382-z. Epub 2012 Jun 23.