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The duration of cocaine use is a major contributing factor to the severity of the adverse retinal effect. [ 24 ] Cocaine use is also associated with retinal hemorrhage due to the general increase in blood pressure and blood vessel occlusion within the retina. [ 25 ]
These chemicals inhibit the action of DAT and, to a lesser extent, the other monoamine transporters, but their effects are mediated by separate mechanisms. Monoamine transporters are established targets for many pharmacological agents that affect brain function, including the psychostimulants cocaine and amphetamine. Cocaine and amphetamine ...
Cocaine also blocks the serotonin transporter and norepinephrine transporter, inhibiting reuptake of serotonin and norepinephrine from the synaptic cleft into the pre-synaptic axon terminal and increasing activation of serotonin receptors and norepinephrine receptors in the post-synaptic neuron, contributing to the mental and physical effects ...
Cocaine is a relatively "balanced" inhibitor, although facilitation of dopaminergic neurotransmission is what has been linked to the reinforcing and addictive effects. In addition, cocaine has some serious limitations in terms of its cardiotoxicity [188] due to its local anesthetic activity. Thousands of cocaine users are admitted to emergency ...
6531 13162 Ensembl ENSG00000142319 ENSG00000276996 ENSMUSG00000021609 UniProt Q01959 Q61327 RefSeq (mRNA) NM_001044 NM_010020 RefSeq (protein) NP_001035 NP_034150 Location (UCSC) Chr 5: 1.39 – 1.45 Mb Chr 13: 73.68 – 73.73 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse The dopamine transporter (DAT, also sodium-dependent dopamine transporter) is a membrane-spanning protein coded ...
Physical addiction to cocaine may result from prolonged exposure to excess dopamine in the synapses, which leads to the downregulation of some post-synaptic receptors. After the effects of the drug wear off, an individual can become depressed due to decreased probability of the neurotransmitter binding to a receptor.
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Once the action potential reaches the axon terminal, it will cause an influx of calcium ions into the cell. The calcium ions will then cause vesicles, small packets filled with neurotransmitters, to bind to the cell membrane and release its contents into the synapse. This cell is known as the pre-synaptic neuron, and the cell that interacts ...