Background: The neurochemical effects of lithium in adolescents with bipolar disorder largely are unknown. This study used proton magnetic resonance spectroscopy (1H MRS) to identify the in vivo effects of lithium on myo-inositol (mI) concentrations in adolescent bipolar depression.
Methods: Twenty-eight adolescents (12-18 years old) with bipolar I disorder, current episode depressed, received open-label lithium 30 mg/kg, adjusted to achieve serum levels of 1.0-1.2 mEq/L. The mI concentrations in the medial as well as the left and right lateral prefrontal cortices were measured at baseline, day 7, and day 42 of treatment. Changes in mI concentrations over time were analyzed.
Results: Significant main effects of time were observed for mI concentrations in the medial (p = .03) and right lateral (p = .05) prefrontal cortices. Baseline concentrations of mI were not significantly different from day 7 or day 42 concentrations. However, mI concentrations on day 42 were significantly higher than those on day 7 (p = .02) in both regions.
Conclusions: This study demonstrates that prefrontal mI concentrations do not significantly change from baseline after acute and chronic lithium treatment in adolescents with bipolar depression. Further investigation of the effect of lithium on mI is warranted to better understand possible mechanisms by which lithium exerts antidepressant activity.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1761698 | PMC |
| http://dx.doi.org/10.1016/j.biopsych.2006.07.029 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Mental Health Disparities by Sexual Orientation and Gender Identity in the All of Us Research Program.
JAMA Netw Open
January 2025
Department of Epidemiology and Population Health, Stanford University School of Medicine, Stanford, California.
Importance: Limited research explores mental health disparities between individuals in sexual and gender minority (SGM) populations and cisgender heterosexual (non-SGM) populations using national-level data.
Objective: To explore mental health disparities between SGM and non-SGM populations across sexual orientation, sex assigned at birth, and gender identity within the All of Us Research Program.
Design, Setting, And Participants: This cross-sectional study used survey data and linked electronic health records of eligible All of Us Research Program participants from May 31, 2017, to June 30, 2022.
Dissociable ventral and dorsal sensorimotor functional circuits linking the hypomanic personality traits to aggression via behavioral inhibition system.
Int J Clin Health Psychol
January 2025
Faculty of Psychology, Tianjin Normal University, Tianjin, 300387, China.
Hypomanic personality traits (HPT) are susceptibility markers for psychiatric disorders, particularly bipolar disorder, and are strongly associated with aggressive behaviors. However, the neuropsychological mechanisms underlying this association remain unclear. This study utilized psychometric network analysis and (IS-RSA) to explore the neuropsychological circuits that link HPT to aggression in a large non-clinical population.
View Article and Find Full Text PDFRandomized Controlled Trial of the Effects of High-Dose Ondansetron on Clinical Symptoms and Brain Connectivity in Obsessive-Compulsive and Tic Disorders.
Am J Psychiatry
January 2025
Nathan Kline Institute for Psychiatric Research, Orangeburg, NY (Stern, Collins, Bragdon, Eng, Recchia, Tobe, Iosifescu); Department of Psychiatry (Stern, Bragdon, Eng, Recchia, Iosifescu) and Neuroscience Institute (Stern, Iosifescu), New York University Langone Medical Center, New York; Department of Psychiatry, University of Miami Medical School, Miami (Coffey); Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York (Leibu, Murrough); Center for the Developing Brain, Child Mind Institute, New York (Tobe); Department of Psychiatry, Brigham and Women's Hospital, Boston (Burdick); Harvard Medical School, Boston (Burdick); Department of Psychiatry, Baylor College of Medicine, Houston (Goodman).
Objective: Sensory phenomena (SP) are aversive sensations driving repetitive behaviors in obsessive-compulsive disorder (OCD) and Tourette's disorder that are not well addressed by standard treatments. SP are related to the functioning of an interoceptive-sensorimotor circuit that may be modulated by the 5-HT receptor antagonist ondansetron. The present study employed an experimental medicine approach to test the effects of 4 weeks of high-dose ondansetron compared to placebo on SP severity and brain connectivity in a cohort of individuals with OCD and/or Tourette's disorder.
View Article and Find Full Text PDFAbnormal network homogeneity in patients with bipolar disorder in attention network.
Brain Imaging Behav
January 2025
Key Laboratory of Adolescent Cyberpsychology and Behavior (Ministry of Education), Wuhan, China.
Bipolar disorder (BD) is a complex psychiatric condition marked by significant mood fluctuations that deeply affect quality of life. Understanding the neural mechanisms underlying BD is critical for improving diagnostic accuracy and developing more effective treatments. This study utilized resting-state functional magnetic resonance imaging (rs-fMRI) to investigate functional connectivity within the ventral and dorsal attention networks in 52 patients with BD and 51 healthy controls.
View Article and Find Full Text PDFImpact of cariprazine on body weight and blood pressure among adults with bipolar I disorder, schizophrenia, or major depressive disorder in a real-world setting.
Ann Gen Psychiatry
January 2025
AbbVie, North Chicago, IL, USA.
Background: Atypical antipsychotics are a common treatment for serious mental illness, but many are associated with adverse effects, including weight gain and cardiovascular issues, and real-world experience may differ from clinical trial data. Cariprazine has previously demonstrated a favorable safety and tolerability profile in clinical trials. Here, we evaluated the effects of cariprazine on body weight and blood pressure for bipolar I disorder (BP-I), schizophrenia, or as adjunctive treatment for major depressive disorder (MDD) using real-world data.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!