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Prevalence of schizophrenia spectrum and bipolar disorder among patients with cannabis induced psychosis: a systematic review and meta-analysis

 Published on 12/05/2026 |  Original article (Full-text)  | Javed Mohammad Saad et al. | BMC Psychiatry 2025; 26(1): 185

Substance-induced psychosis (SIP) is characterized by the occurrence of delusions and/or hallucinations following the consumption or withdrawal of a recently ingested psychoactive substance [1]. It is distinguished from organic psychoses, such as those classified under the schizophrenia spectrum disorder...

Differences in biochemical metabolism and cognitive function between bipolar I and bipolar II disorder

 Published on 05/05/2026 |  Original article (Full-text)  | Zhang Rongxu et al. | BMC Psychiatry 2025; 26(1): 189

Bipolar disorder (BD) is a serious and persistent mood disorder that significantly impairs patients’ social functioning and quality of life [29]. It ranks among the leading causes of disability worldwide [35]. According to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition...

Development and external validation of a diagnostic model for differentiating major depressive disorder from bipolar disorder

 Published on 28/04/2026 |  Original article (Full-text)  | Zheng Hongxin et al. | BMC Psychiatry 2026; 26(1): 197

Bipolar disorder (BD), as a recurrent mood disorder, affects approximately 2% of the global population, and its core features include extreme fluctuations in mood states, ranging from manic periods of extreme euphoria and activation to depressive periods of low mood, energy depletion, and despair [1]....

Transcriptomic Analysis of the Amygdala in Subjects with Schizophrenia, Bipolar Disorder and Major Depressive Disorder Reveals Differentially Altered Metabolic Pathways

 Published on 21/04/2026 |  Original article (Full-text)  | Xiaolu Zhang et al. | Schizophrenia bulletin. Volume 52(2).

The amygdala, crucial for mood, anxiety, fear, and reward regulation, shows neuroanatomical and molecular divergence in psychiatric disorders like schizophrenia, bipolar disorder and major depression. This region is also emerging as an important regulator of metabolic and immune pathways. The goal of...