Results 41 to 50 of about 807,462 (376)
Dysfunctional Light-Evoked Regulation of cAMP in Photoreceptors and Abnormal Retinal Adaptation in Mice Lacking Dopamine D4 Receptors [PDF]
, 2002 Dopamine is a retinal neuromodulator that has been implicated in many aspects of retinal physiology. Photoreceptor cells express dopamine D4 receptors that regulate cAMP metabolism.
Grandy, David K. +6 more
core +1 more source
Midbrain Dopamine Neurons Signal Belief in Choice Accuracy during a Perceptual Decision [PDF]
, 2017 Central to the organization of behavior is the ability to predict the values of outcomes to guide choices. The accuracy of such predictions is honed by a teaching signal that indicates how incorrect a prediction was (“reward prediction error,” RPE).
Kepec, A. +4 more
core +2 more sources
PLoS ONE, 2023 How the role of dopamine differs according to the evolution of eusociality and how it is required in the flexible society of Polistes paper wasps need further clarification.
Ken Sasaki +2 more
doaj +2 more sources
Putting Desire on a Budget: Dopamine and Energy Expenditure, Reconciling Reward and Resources
Frontiers in Integrative Neuroscience, 2012 Accumulating evidence indicates integration of dopamine function with metabolic signals, highlighting a potential role for dopamine in energy balance, frequently construed as modulating reward in response to homeostatic state.
Jeff A Beeler +3 more
doaj +1 more source
Pharmacology of novel psychoactive substances [PDF]
, 2016 This PhD work consists of an in vitro and in vivo part. In the in vivo part, we investigated the role of dopamine in the acute clinical effects of 3,4-methylenedioxymethamphetamine (MDMA, “ecstasy”) in healthy human subjects.
Rickli, Anna
core +1 more source
Frontiers in Behavioral Neuroscience, 2014 Dopamine mediates diverse functions such as motivation, reward, attention, learning/memory and sleep/arousal. Recent studies using model organisms including the fruit fly, have elucidated various physiological functions of dopamine, and identified ...
Taro eUeno +3 more
doaj +1 more source
High concentration of dopamine treatment may induce acceleration of human sperm motility
Reproductive Medicine and Biology, 2022 Purpose In humans, catecholamines (including dopamine) have been identified in semen and fallopian tubes, while dopamine D2 receptors (D2DR) are found in the sperm midpiece region.
Hiroki Kanno +5 more
doaj +1 more source
Assessment of the direct and indirect effects of MPP+ and dopamine on the human proteasome: implications for Parkinson's disease aetiology [PDF]
, 2008 Mitochondrial impairment, glutathione depletion and oxidative stress have been implicated in the pathogenesis of Parkinson’s disease (PD), linked recently to proteasomal dysfunction.
Beck, KE +5 more
core +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Dopaminergic medication and deep brain stimulation (DBS) improve motor symptoms in Parkinson's disease (PD), but levodopa response alone may not predict DBS outcomes. We retrospectively analyzed 19 PD patients undergoing levodopa challenges with and without prior transcranial direct current stimulation targeting a defined PD response network ...
Lukas L. Goede +3 more
wiley +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective People with HIV (PWH) on antiretroviral therapy (ART) still experience neurocognitive dysfunction and accelerated brain volume loss. To assess whether the serotonergic and dopaminergic systems are affected, we used [11C]DASB positron emission tomography (PET) to assess presynaptic serotonergic function and [18F]FDOPA PET to measure ...
Chuen‐Yen Lau +12 more
wiley +1 more source