Yarema B Bezchlibnyk

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OBJECTIVE Morphometric studies of postmortem brains from subjects with mood disorders have reported altered density of glial cells in the amygdala; however, the nuclear regions have not been examined individually. METHODS We assessed the size and density of both neuronal and glial cells in discrete amygdalar nuclei in postmortem sections from subjects(More)
Previous studies have implicated a number of biochemical pathways in the etiology of bipolar disorder (BD). However, the precise abnormalities underlying this disorder remain to be established. To investigate novel factors that may be important in the pathophysiology of BD, we utilized cDNA expression arrays to examine differences in expression of up to(More)
Chronic restraint stress has been associated with induction of morphological changes in the hippocampus. Postsynaptically, these changes include decreased length and branching of apical dendrites from CA3 pyramidal neurons, while presynaptically, depletion and clustering of synaptic vesicles have been observed. However, the molecular correlates of these(More)
Obsessive-compulsive disorder (OCD) is a severe neuropsychiatric disorder with a strong genetic component, and may involve autoimmune processes. Support for this latter hypothesis comes from the identification of a subgroup of children, described by the term pediatric autoimmune neuropsychiatric disorder associated with streptococcal infections (PANDAS),(More)
OBJECTIVE This article presents an overview of signal transduction pathways and reviews the research undertaken to study these systems in clinically relevant samples from patients with bipolar disorder (BD). METHOD We reviewed the published findings from studies of postmortem brain tissue and blood samples from patients with BD. RESULTS Although the(More)
Impairment of neuroplasticity is considered to play a role in the pathogenesis of psychiatric disorders. To further characterize the impairment of neuroplasticity in psychiatric disorders, expression of the neuronal plasticity marker 43 kDa growth-associated protein (GAP-43) was detected in postmortem hippocampal sub-regions from psychiatric patients(More)
BACKGROUND Signal transduction abnormalities have been identified in patients with bipolar (BD) and major depressive (MDD) disorders and are targets for lithium and antidepressant drugs. A key downstream target for signal transduction pathways is the transcription factor cyclic adenosine monophosphate (cAMP) response element binding protein (CREB).(More)
Insulin-like growth factors (IGFs) regulate cellular proliferation and death, and their bioactivity is controlled by IGF binding proteins (IGFBPs). Since IGFBP-2 is the major brain resident IGFBP, and we have demonstrated lithium-mediated changes in its mRNA and protein levels in neuronal cultures, we examined IGFBP-2 expression in prefrontal cortex(More)
OBJECTIVE The efficacy of endoscopic third ventriculostomy (ETV) for the treatment of pediatric hydrocephalus has been extensively reported in the literature. However, ETV-related long-term outcome data are lacking for the adult hydrocephalus population. The objective of the present study was to assess the role of ETV as a primary or secondary treatment for(More)
Lithium has been shown to possess cytoprotective properties in both cellular and animal models. Moreover, previous studies indicate that lithium treatment alters the expression of insulin-like growth factor binding protein-1 (IGFBP-1), a critical modulator of insulin-like growth factor bioactivity. Given the critical roles played by insulin-like growth(More)
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