Bipolar Disorder

Subcortical Connectivity Differed Across Schizophrenia, Bipolar Disorder, and Depression

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Subcortical Connectivity Differed Across Schizophrenia, Bipolar Disorder, and Depression

TL;DR: A 2026 functional MRI (fMRI) study in Psychological Medicine found that schizophrenia, bipolar disorder, and major depressive disorder shared some thalamus connectivity disruption, but each diagnosis showed a different subcortical network pattern across the thalamus, striatum, hippocampus, and amygdala. Key Findings 800-person MRI cohort: Researchers analyzed resting-state fMRI from 200 people with schizophrenia, 200 …

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Lithium Loading Dose Plus Quetiapine Reduced Acute Mania More Than Standard Titration

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Lithium Loading Dose Plus Quetiapine Reduced Acute Mania More Than Standard Titration

TL;DR: A 2026 randomized single-blind trial in BMC Psychiatry found that a one-day lithium carbonate loading dose plus quetiapine reduced acute manic symptoms in bipolar I disorder more than standard slow-titration lithium plus quetiapine over 14 days. Key Findings 60 inpatients randomized: Adults with bipolar I disorder in acute mania, all meeting DSM-5 criteria and …

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Antipsychotic D2 Blockade May Disturb Pancreatic Insulin Secretion

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Antipsychotic D2 Blockade May Disturb Pancreatic Insulin Secretion

TL;DR: A 2026 systematic review and meta-analysis in Neuropsychopharmacology found that dopamine D2-like receptor activation suppressed glucose-stimulated insulin secretion (GSIS), insulin release after high glucose, in animal pancreatic cells, suggesting one peripheral route by which antipsychotic dopamine blockade can disturb glucose control beyond weight gain. Key Findings 39 eligible studies: Researchers screened 12,457 citations and …

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Early Antidepressant Treatment Linked to Higher Negative Affect and Impulsivity in Bipolar Euthymia

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Early Antidepressant Treatment Linked to Higher Negative Affect and Impulsivity in Bipolar Euthymia

TL;DR: A 2026 cross-sectional study in PLOS One found that euthymic bipolar disorder patients with early systematic antidepressant treatment had higher negative affect and higher attentional, non-planning, and total impulsivity scores than matched patients without that early antidepressant history. Key Findings 124 bipolar patients studied: Researchers compared 62 patients with early systematic antidepressant treatment and …

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Neurobiology of Bipolar Disorder: Genetic & Brain Imaging Links

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Bipolar disorder, formerly known as manic depression, is a chronic mental illness characterized by dramatic shifts in mood and energy levels. It affects about 2-4% of the population worldwide. While we still don’t fully understand what causes bipolar disorder, research over the past couple decades has uncovered important clues into the biological mechanisms behind this …

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Bipolar Mania & Brain Activation: Right Ventral PFC & Limbic Dysfunction

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Mania is characterized by emotional dysregulation, sleep disturbances, and impaired judgment. Understanding its underlying brain circuitry could lead to improved diagnosis and treatment. Key Facts: Mania involves decreased activity in the right ventral prefrontal cortex (PFC) and increased activity in the left amygdala, left anterior cingulate cortex (ACC), and left basal ganglia. This lateralized limbic …

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Antidepressants & Mania in Bipolar Disorder: 5-HTTPLR Gene Impacts Risk

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Bipolar disorder is a mental illness characterized by extreme mood swings between depression and mania. While antidepressants are commonly prescribed to treat the depressive symptoms, they can also trigger manic episodes in some patients. New research suggests having a certain gene may increase this risk. Key Facts: Antidepressants can cause manic episodes, called treatment emergent …

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