Sökning: "Dopamine signaling"

Visar resultat 1 - 5 av 63 avhandlingar innehållade orden Dopamine signaling.

  1. 1. Modeling Biochemical Network Involved in Striatal Dopamine Signaling

    Författare :Anu G. Nair; Jeanette Hellgren Kotaleski; Omar Gutierrez Arenas; Upinder Singh Bhalla; Jakob Kisbye Dreyer; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Dopamine signaling; Striatum; Reward learning; Acetylcholine; Mass-action modeling; FRET biosensor; Adenosine; Eligibility trace; Computer Science; Datalogi;

    Sammanfattning : In this thesis, I studied the molecular integration of reward-learning related neuromodulatory inputs by striatal medium-sized projection neurons (MSNs) using mass-action kinetic modeling.It is known that, in reward learning, an unexpected reward results in transient elevation in dopamine (peak) whereas omission of an expected reward leads to transient dopamine decrease (dip). LÄS MER

  2. 2. Modeling receptor induced signaling in MSNs : Interaction between molecules involved in striatal synaptic plasticity

    Författare :Anu G. Nair; Jeanette Hellgren Kotaleski; Omar Gutierrez-Arenas; Upinder S. Bhalla; Pierre Vincent; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Striatal synaptic plasticity; LTP; Dopamine; Acetylcholine; Synergy; Medium spiny neurons; MSNs;

    Sammanfattning : Basal Ganglia are evolutionarily conserved brain nuclei involved in several physiologically important animal behaviors like motor control and reward learning. Striatum, which is the input nuclei of basal ganglia, integrates inputs from several neurons, like cortical and thalamic glutamatergic input and local GABAergic inputs. LÄS MER

  3. 3. Pharmacological and genetic manipulation of adipose cell differentiation and metabolism

    Författare :Milica Vranic; Maria J. Pereira; Jan Eriksson; Niklas Mejhert; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; adipose tissue; adipocyte; type 2 diabetes; CRISP Cas9; FKBP51; CDKN2C; second-generation antipsychotics; glucocorticoids; dopamine; dopamine receptor;

    Sammanfattning : Adipose tissue dysfunction has a pivotal role in the development of obesity and related metabolic complications, such as insulin resistance, cardiovascular disease, and diabetes. The overall aim was to study the consequences of adipose exposure to pharmacological agents, as well as dysregulations in the expression of genes, potentially involved in adipose tissue dysfunction and related metabolic impairments. LÄS MER

  4. 4. Selectivity of dopamine D1 and D2 receptor agonists – A combined computational approach

    Författare :Marcus Malo; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; dopamine; agonists; GPCRs; pharmacophore modeling; protein structure modeling; agonist selectivity;

    Sammanfattning : Dopamine (DA) is an endogenous neurotransmitter acting in the central nervous system. DA plays a key role in many vital brain functions such as behavior, cognition, motor activity, learning, and reward. Dopamine receptors belong to the rhodopsin like family of G-protein coupled receptors (GPCRs). LÄS MER

  5. 5. Dopamine and the affective-cognitive gradient in the human striatum studied with multimodal brain imaging

    Författare :Filip Grill; Anna Rieckmann; Lars Nyberg; Alison Adcock; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; dopamine; striatum; incentive; motor; associative; reinforcement learning; reward prediction error; positron emission tomography; functional magnetic resonance imaging; PET MR; cognitive modelling;

    Sammanfattning : Both dopamine and the dopamine rich brain area, striatum, have been linked to behaviors related to incentives, motor action, and associative processing. Most of the cortex sends projections to the striatum, these connections have been described as a gradient organization representing a repertoire of functional behaviors. LÄS MER