Publications by authors named "J Costas"

Article Synopsis
  • - The study investigates the role of the Pyk2 gene in obesity among children and adolescents, noting its previously unclear involvement in energy balance-related diseases.
  • - Researchers measured mRNA expression levels of Pyk2 in 130 Caucasian subjects, split into two groups based on Body Mass Index (BMI), and found higher expression levels in those with obesity.
  • - The results revealed a positive correlation between Pyk2 expression levels and various obesity-related metrics (like weight, fat mass, and blood pressure), suggesting that Pyk2 may be a potential predictor for developing obesity.
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Article Synopsis
  • The study investigates the genetic links between treatment-resistant schizophrenia (TRS), lithium response in bipolar disorder (BD), and antidepressant response in major depressive disorder (MDD).
  • It employs the conditional/conjunctional false discovery rate (cond/conjFDR) methodology to identify shared genetic mechanisms that might influence treatment outcomes across these disorders.
  • The findings suggest a significant genetic correlation, particularly highlighting the MAP2K1 gene as a shared locus, and indicate a need for future research with larger data sets to validate these results.
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Cumulative evidence suggests that zebrafish is a useful model in psychiatric research. Weighted Gene Co-expression Network Analysis (WGCNA) enables the reduction of genome-wide expression data to modules of highly co-expressed genes, which are hypothesized to interact within molecular networks. In this study, we first applied WGCNA to zebrafish brain expression data across different experimental conditions.

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Background: Epidemiological studies have linked low birth weight to psychiatric disorders, including substance use disorders. Genomic analyses suggest a role of placental physiology on psychiatric risk. We investigated whether this association is causally related to impaired trophoblast function.

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