Evaluating the effect of black myrobalan on cognitive, positive, and negative symptoms in patients with chronic schizophrenia: A randomized, double‐blind, placebo‐controlled trial

2021 ◽  
Author(s):  
Mohammad Banazadeh ◽  
Mitra Mehrabani ◽  
Nabi Banazadeh ◽  
Fatemeh Dabaghzadeh ◽  
Farzad Shahabi
2010 ◽  
Vol 179 (1) ◽  
pp. 19-23 ◽  
Author(s):  
Iulian Iancu ◽  
Eleonora Tschernihovsky ◽  
Ehud Bodner ◽  
Anna Sapir Piconne ◽  
Katherine Lowengrub

2018 ◽  
Vol 5 (11) ◽  
pp. 885-894 ◽  
Author(s):  
Bill Deakin ◽  
John Suckling ◽  
Thomas R E Barnes ◽  
Kelly Byrne ◽  
Imran B Chaudhry ◽  
...  

1996 ◽  
Vol 169 (5) ◽  
pp. 610-617 ◽  
Author(s):  
Uriel Heresco-Levy ◽  
Daniel C. Javitt ◽  
Marina Ermilov ◽  
Clara Mordel ◽  
Avraham Horowitz ◽  
...  

BackgroundIt has been proposed that schizophrenia is associated with underactivity of brain glutamatergic neurotransmission, especially at the level of the N-methyl-D-aspartate (NMDA) subtype of glutamate receptor. Glycine potentiates NMDA receptor-mediated neurotransmission, indicating that it may serve as an effective therapeutic agent in the treatment of schizophrenia.MethodEleven treatment-resistant patients with chronic schizophrenia completed a double-blind placebo-controlled, six-week, randomly assigned, crossover treatment trial of 0.8 g/kg body weight/day of glycine, added to their prior antipsychotic treatment.ResultsGlycine was well tolerated, resulted in significantly increased serum glycine levels and induced a mean 36 (7%) reduction in negative symptoms (P < 0.0001). Significant improvments were also induced in depressive and cognitive symptoms. The greatest reduction in negative symptoms was registered in the patients who had the lowest baseline serum glycine levels.ConclusionsThese results extend previous findings and suggest an additional approach to the pharmacotherapy of negative symptoms and cognitive deficits in schizophrenia.


2007 ◽  
Vol 68 (05) ◽  
pp. 705-710 ◽  
Author(s):  
Joseph M. Pierre ◽  
John H. Peloian ◽  
Donna A. Wirshing ◽  
William C. Wirshing ◽  
Stephen R. Marder

2022 ◽  
Author(s):  
Zezhi Li ◽  
Minghuan Zhu ◽  
Zhenjing Liu ◽  
Qiongyue Hu ◽  
Jiayu Yang ◽  
...  

Abstract BackgroundAlthough clozapine is an effective option for treatment-resistant schizophrenia (TRS), there are still 1/3 to 1/2 of TRS patients who do not respond to clozapine. The main purposes of this randomized, double-blind, placebo-controlled trial was to explore the amisulpride augmentation efficacy on the psychopathological symptoms and cognitive function of CTRS patients. MethodsA total of 80 patients were recruited and randomly assigned to receive an initial clozapine plus amisulpride or clozapine plus placebo. Positive and Negative Syndrome Scale (PANSS), Scale for the Assessment of Negative Symptoms (SANS), Clinical Global Impression (CGI) scale scores, Repeatable Battery for the Assessment of Neuropsychological Status (RBANS), Treatment Emergent Symptom Scale (TESS), laboratory measurements and electrocardiograms (ECG) were performed at baseline, week 6, and week 12. ResultsCompared with clozapine plus placebo group, clozapine plus amisulpride had lower PANSS total score, positive subscore and general psychopathology subscore at week 6 and week 12 (all p Bonferroni< 0.01). Furthermore, compared with clozapine plus placebo group, clozapine plus amisulpride showed improved RBANS language score at week 12 (p Bonferroni< 0.001). Clozapine plus amisulpride group had a higher treatment response rate (p = 0.04), lower scores of CGI severity (CGI-S) and CGI efficacy (CGI-E) at week 6 and week 12 than clozapine plus placebo (all p Bonferroni< 0.05). There were no differences in BMI, QT intervals or laboratory measurements between the groups. Our results demonstrate that amisulpride augmentation therapy can safely improve the psychiatric symptoms and cognitive performance of CTRS patients. ConclusionsOur study indicates that amisulpride augmentation therapy has important clinical significance for the treatment of CTRS to improve clinical symptoms and cognitive function with tolerability and safety.Trial registrationClinicaltrials.gov identifier- NCT03652974. Registered 31 August 2018, https://clinicaltrials.gov/ct2/show/NCT03652974


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