Search Results - "Nasser, Arafat"
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Common HTR2A variants and 5‐HTTLPR are not associated with human in vivo serotonin 2A receptor levels
Published in Human brain mapping (01-11-2020)“…The serotonin 2A receptor (5‐HT2AR) is implicated in the pathophysiology and treatment of various psychiatric disorders. [18F]altanserin and [11C]Cimbi‐36…”
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2
Genetic contributions to brain serotonin transporter levels in healthy adults
Published in Scientific reports (30-09-2023)“…The serotonin transporter (5-HTT) critically shapes serotonin neurotransmission by regulating extracellular brain serotonin levels; it remains unclear to what…”
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3
Stress-Hormone Dynamics and Working Memory in Healthy Women Who Use Oral Contraceptives Versus Non-Users
Published in Frontiers in endocrinology (Lausanne) (08-11-2021)“…Women who use oral contraceptives (OCs) may have a higher risk of developing a depression, which is associated with both vulnerability to stress and cognitive…”
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Associations between the cortisol awakening response and patient-evaluated stress and mood instability in patients with bipolar disorder: an exploratory study
Published in International Journal of Bipolar Disorders (01-03-2021)“…Objective The Cortisol Awakening Response (CAR) measured as the transient increase in cortisol levels following morning awakening appears to be a distinct…”
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Chronic administration of the selective P2X3, P2X2/3 receptor antagonist, A-317491, transiently attenuates cancer-induced bone pain in mice
Published in European journal of pharmacology (05-08-2012)“…The purinergic P2X3 and P2X2/3 receptors are in the peripheral nervous system almost exclusively confined to afferent sensory neurons, where they are found…”
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6
An in vivo Pig Model for Testing Novel Positron Emission Tomography Radioligands Targeting Cerebral Protein Aggregates
Published in Frontiers in neuroscience (16-03-2022)“…Positron emission tomography (PET) has become an essential clinical tool for diagnosing neurodegenerative diseases with abnormal accumulation of proteins like…”
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7
Intraplantar injection of tetrahydrobiopterin induces nociception in mice
Published in Neuroscience letters (01-01-2015)“…•Tetrahydrobiopterin induces pro-nociceptive effects following peripheral injection.•Local pre-treatment with morphine attenuate tetrahydrobiopterin evoked…”
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8
Blocking of efflux transporters in rats improves translational validation of brain radioligands
Published in EJNMMI research (19-10-2020)“…Background Positron emission tomography (PET) is a molecular imaging technique that can be used to investigate the in vivo pharmacology of drugs. Initial…”
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Anxiety- and depression-like phenotype of hph-1 mice deficient in tetrahydrobiopterin
Published in Neuroscience research (01-12-2014)“…•The hph-1 mouse is a model of BH4 deficiency implicated in affective disorders.•Hph-1 mice display altered anxiety- and depression-like behaviours.•The…”
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10
Reliability of three versus five saliva sampling times for assessing the cortisol awakening response
Published in Psychoneuroendocrinology (01-01-2023)“…The cortisol awakening response (CAR) describes the sharp increase in cortisol secretion within 60 min after awakening. A summary of the CAR, the area under…”
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Assessment of cerebral drug occupancy in humans using a single PET-scan: A 11CUCB-J PET study
Published in European journal of nuclear medicine and molecular imaging (01-09-2024)“…Here, we evaluate a PET displacement model with a Single-step and Numerical solution in healthy individuals using the synaptic vesicle glycoprotein (SV2A)…”
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Assessment of cerebral drug occupancy in humans using a single PET-scan: A [11C]UCB-J PET study
Published in European journal of nuclear medicine and molecular imaging (01-09-2024)“…Purpose Here, we evaluate a PET displacement model with a Single-step and Numerical solution in healthy individuals using the synaptic vesicle glycoprotein…”
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13
Effects of escitalopram on synaptic density in the healthy human brain: a randomized controlled trial
Published in Molecular psychiatry (01-10-2023)“…Selective serotonin reuptake inhibitors (SSRIs) are widely used for treating neuropsychiatric disorders. However, the exact mechanism of action and why effects…”
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Stress Hormone Dynamics Are Coupled to Brain Serotonin 4 Receptor Availability in Unmedicated Patients With Major Depressive Disorder: A NeuroPharm Study
Published in The international journal of neuropsychopharmacology (25-09-2023)“…Abstract Background A prominent finding in major depressive disorder (MDD) is distorted stress hormone dynamics, which is regulated by serotonergic brain…”
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Kinetic models for estimating occupancy from single-scan PET displacement studies
Published in Journal of cerebral blood flow and metabolism (01-09-2023)“…The traditional design of PET target engagement studies is based on a baseline scan and one or more scans after drug administration. We here evaluate an…”
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Evaluation of the α-synuclein PET radiotracer (d3)-[11C]MODAG-001 in pigs
Published in Nuclear medicine and biology (01-11-2022)“…A positron emission tomography (PET) radiotracer to neuroimage α-synuclein aggregates would be a crucial addition for early diagnosis and treatment development…”
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P2X7 receptor-deficient mice are susceptible to bone cancer pain
Published in Pain (Amsterdam) (01-08-2011)“…The purinergic P2X7 receptor is implicated in both neuropathic and inflammatory pain, and has been suggested as a possible target in pain treatment. However,…”
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Heterozygous mutations in GTP-cyclohydrolase-1 reduce BH4 biosynthesis but not pain sensitivity
Published in Pain (Amsterdam) (01-06-2018)“…Human studies have demonstrated a correlation between noncoding polymorphisms of "the pain protective" haplotype in the GCH1 gene that encodes for GTP…”
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Corrigendum to “Anxiety- and depression-like phenotype of the hph-1 mice deficient in tetrahydrobiopterin” [Neurosci. Res. 89 (2014) 44–53]
Published in Neuroscience research (01-12-2015)Get full text
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GCH1 variants, tetrahydrobiopterin and their effects on pain sensitivity
Published in Scandinavian journal of pain (01-04-2014)“…Highlights • GCH1 gene mutations decrease pain sensitivity in experimental models of pain in humans and mice. • GCH1 gene variants in the general population…”
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