Nicholas J. Brandon

ORCID: 0000-0002-3917-0096
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About
Contact & Profiles
Research Areas
  • Neuroscience and Neuropharmacology Research
  • Receptor Mechanisms and Signaling
  • Phosphodiesterase function and regulation
  • Ion channel regulation and function
  • Renin-Angiotensin System Studies
  • Amino Acid Enzymes and Metabolism
  • Cholinesterase and Neurodegenerative Diseases
  • Tryptophan and brain disorders
  • Molecular Biology Techniques and Applications
  • Genetics and Neurodevelopmental Disorders
  • Nicotinic Acetylcholine Receptors Study
  • Neuropeptides and Animal Physiology
  • Epilepsy research and treatment
  • Estrogen and related hormone effects
  • Epigenetics and DNA Methylation
  • Genetic Associations and Epidemiology
  • CRISPR and Genetic Engineering
  • Photoreceptor and optogenetics research
  • Signaling Pathways in Disease
  • Mycobacterium research and diagnosis
  • Amyotrophic Lateral Sclerosis Research
  • Alzheimer's disease research and treatments
  • Cancer-related molecular mechanisms research
  • Chemical synthesis and alkaloids
  • Neuroinflammation and Neurodegeneration Mechanisms

AstraZeneca (United States)
2016-2025

Tufts University
2015-2025

University of Pittsburgh
2025

Imperial College London
2002-2024

New England Research Institutes
2024

Pfizer (United States)
2010-2023

AstraZeneca (Brazil)
2018-2023

University of New Brunswick
2023

University of Toronto
2023

Jnana Therapeutics (United States)
2020-2022

The disrupted in schizophrenia 1 ( DISC1 ) gene is a candidate susceptibility factor for schizophrenia, but its mechanistic role the disorder unknown. Here we report that encoding phosphodiesterase 4B PDE4B by balanced translocation subject diagnosed with and relative chronic psychiatric illness. PDEs inactivate adenosine 3′,5′-monophosphate (cAMP), second messenger implicated learning, memory, mood. We show interacts UCR2 domain of elevation cellular cAMP leads to dissociation from an...

10.1126/science.1112915 article EN Science 2005-11-18

There is compelling clinical literature implicating a role for cytokines in the pathophysiology of major depressive disorder (MDD). Interleukin-6 (IL-6) and interleukin-1β (IL-1β) are pleiotropic inflammatory that have been reported to be elevated patients with MDD. The present studies were undertaken investigate relationship between IL-6 IL-1β animal models depressive-like behavior. Analysis brain tissue homogenates cortex rats subjected chronic stress paradigms revealed levels protein...

10.1038/tp.2012.120 article EN cc-by Translational Psychiatry 2012-12-04

Amyotrophic lateral sclerosis (ALS) is a devastating neurodegenerative disorder typically characterized by insoluble inclusions of hyperphosphorylated TDP-43. The mechanisms underlying toxic TDP-43 accumulation are not understood. Persistent activation p38 mitogen-activated protein kinase (MAPK) implicated in ALS. However, it unclear how MAPK affects proteinopathy. Here, we show that p38α inhibition reduces pathological phosphorylation, aggregation, cytoplasmic mislocalization, and...

10.1016/j.celrep.2024.115205 article EN cc-by-nc-nd Cell Reports 2025-01-01

Following several recent reports that suggest dual cAMP and cGMP phosphodiesterase 10A (PDE10A) inhibitors may present a novel mechanism to treat positive symptoms of schizophrenia, we sought extend the preclinical characterization two such compounds, papaverine [1-(3,4-dimethoxybenzyl)-6,7-dimethoxyisoquinoline] MP-10 [2-{[4-(1-methyl-4-pyridin-4-yl-1<i>H</i>-pyrazol-3-yl)phenoxy]methyl}quinoline], in variety vivo vitro assays. Both these compounds were active range antipsychotic models,...

10.1124/jpet.109.155994 article EN Journal of Pharmacology and Experimental Therapeutics 2009-08-06

Estrogen, in addition to its genomic effects brain, causes rapid and reversible changes synaptic operations. We report here that these acute actions are due selective activation of an actin-signaling cascade normally used the production long-term potentiation (LTP). or a agonist steroid's β-receptor, caused modest increase fast glutamatergic transmission pronounced facilitation LTP adult hippocampal slices; both were completely eliminated by latrunculin, toxin prevents actin filament...

10.1523/jneurosci.3059-09.2009 article EN cc-by-nc-sa Journal of Neuroscience 2009-10-14

Disrupted-in-Schizophrenia-1 ( DISC1 ), identified by positional cloning of a balanced translocation (1;11) with the breakpoint in intron 8 large Scottish pedigree, is associated range neuropsychiatric disorders including schizophrenia. To model this mutation mice, we have generated Disc1 tr transgenic mice expressing 2 copies truncated encoding first exons using bacterial artificial chromosome (BAC). With partial simulation human situation, discovered phenotypes series novel features not...

10.1523/jneurosci.3299-08.2008 article EN cc-by-nc-sa Journal of Neuroscience 2008-10-22

Positive allosteric modulators (PAMs) of metabotropic glutamate receptor subtype 5 (mGlu5) enhance <i>N</i>-methyl-d-aspartate function and may represent a novel approach for the treatment schizophrenia. ADX47273 [<i>S</i>-(4-fluoro-phenyl)-{3-[3-(4-fluoro-phenyl)-[1,2,4]oxadiazol-5-yl]-piperidin-1-yl}-methanone], recently identified potent selective mGlu5 PAM, increased (9-fold) response to threshold concentration (50 nM) in fluorometric Ca<sup>2+</sup> assays (EC<sub>50</sub> = 170 human...

10.1124/jpet.108.136580 article EN Journal of Pharmacology and Experimental Therapeutics 2008-08-27

Positive allosteric modulators (PAMs) of the M4 muscarinic acetylcholine receptor (mAChR) represent a novel approach for treatment psychotic symptoms associated with schizophrenia and other neuropsychiatric disorders. We recently reported that selective PAM VU0152100 produced an antipsychotic drug-like profile in rodents after amphetamine challenge. Previous studies suggest enhanced cholinergic activity may also improve cognitive function reverse deficits observed reduced signaling through...

10.1021/cn500128b article EN publisher-specific-oa ACS Chemical Neuroscience 2014-07-29

Abstract Human induced pluripotent stem cells (hiPSCs) are a powerful model of neural differentiation and maturation. We present hiPSC transcriptomics resource on corticogenesis from 5 iPSC donor 13 subclonal lines across 9 time points over broad conditions: self-renewal, early neuronal differentiation, precursor (NPCs), assembled rosettes, differentiated cells. identify widespread changes in the expression both individual features global patterns transcription. next demonstrate that...

10.1038/s41467-019-14266-z article EN cc-by Nature Communications 2020-01-23
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