Previously, we demonstrated evidence of linkage to bipolar affective disorder (BP) in a single large, multigenerational family with a LOD score of 3.41 at the PFKL locus on chromosome 21q22.3. Additional families showed little support for linkage to PFKL under homogeneity or heterogeneity, in that study. We have expanded on that analysis, with 31 microsatellite markers at an average marker spacing of =2 cM, in the largest multigenerational BP pedigree series reported to date. A two-point heterogeneity (alpha=0.5) LOD score of 3.35 (P<.000156) was found at the D21S1260 locus, 5 cM proximal to PFKL. Polylocus analysis with a cluster of three neighboring markers was consistent with these results (PL-HetLOD = 3.25). In the design of this study, 373 individuals from 40 families (from a total set of 1,508 individuals in 57 families) were chosen, as a cost-effective approach to genotyping this large sample set. Linkage analyses were performed with an "affecteds-only" method. As such, our results are based solely on genetic information from affected individuals, without assumptions about the disease-locus genotypes of the unaffecteds. Furthermore, for ease of comparison, this study was performed with the same approach as a 10-cM genome scan for BP loci, the results of which will be reported elsewhere.
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http://dx.doi.org/10.1086/302185 | DOI Listing |
PLoS One
January 2025
Department of Psychology, University of British Columbia, Vancouver, BC, Canada.
The built environments we move through are a filter for the stimuli we experience. If we are in a darker or a lighter room or space, a neutrally valenced sound could be perceived as more unpleasant or more pleasant. Past research suggests a role for the layout and lighting of a space in impacting how stimuli are rated, especially on bipolar valence scales.
View Article and Find Full Text PDFIndian J Nucl Med
November 2024
Department of Nuclear Medicine, AIIMS, Rishikesh, Uttarakhand, India.
Lithium is used in the treatment of bipolar disorder to manage and stabilize mood, proving effective in addressing both manic and depressive phases. In these patients, the use of lithium is associated with various thyroid disorders, such as goiter and hypothyroidism; thyrotoxicosis is a rare presentation. In this case report, we demonstrated lithium-induced thyroiditis on thyroid scintigraphy.
View Article and Find Full Text PDFIndian J Psychiatry
November 2024
Department of Psychiatry, Murshidabad Medical College and Hospital, Murshidabad, West Bengal, India.
Background: There is lack of data on bipolar disorder (BD) type II from India.
Aim: To compare the demographic and clinical characteristics of patients with BD-I and BD-II using the data of the Bipolar Disorder Course and Outcome study from India (BiD-CoIN study).
Methodology: Using the data of the BiD-CoIN study, patients with BD-I and BD-II were compared for demographic and clinical variables.
Neuropsychopharmacology
January 2025
Neurocognition and Emotion in Affective Disorders (NEAD) Centre, Psychiatric Centre Copenhagen, Mental Health Services, Capital Region of Denmark, Frederiksberg, Denmark.
Individuals with bipolar disorder (BD) show heterogeneity in clinical, cognitive, and daily functioning characteristics, which challenges accurate diagnostics and optimal treatment. A key goal is to identify brain-based biomarkers that inform patient stratification and serve as treatment targets. The objective of the present study was to apply a data-driven, multivariate approach to quantify the relationship between multimodal imaging features and behavioral phenotypes in BD.
View Article and Find Full Text PDFEur Psychiatry
January 2025
National Institute for Health Research, Maudsley Biomedical Research Centre, South London and Maudsley NHS Foundation Trust, London, UK.
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