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Olanzapine, sold under the brand name Zyprexa among others, is an atypical antipsychotic primarily used to treat schizophrenia and bipolar disorder. [13] It is also sometimes used off-label for treatment of chemotherapy-induced nausea and vomiting [14] and as an appetite stimulant. [15]
The dopamine hypothesis of schizophrenia or the dopamine hypothesis of psychosis is a model that attributes the positive symptoms of schizophrenia to a disturbed and hyperactive dopaminergic signal transduction. The model draws evidence from the observation that a large number of antipsychotics have dopamine-receptor antagonistic effects. The ...
Dopamine receptor flow chart. Dopamine receptors are all G protein–coupled receptors, and are divided into two classes based on which G-protein they are coupled to. [1] The D 1-like class of dopamine receptors is coupled to Gα s/olf and stimulates adenylate cyclase production, whereas the D 2-like class is coupled to Gα i/o and thus inhibits adenylate cyclase production.
Adverse effect on cognitive function [150] [151] [152] and increased risk of death in people with dementia along with worsening of symptoms has been described in the literature. [ 153 ] [ 154 ] Antipsychotics, due to acting as dopamine D 2 receptor antagonists and thereby stimulating pituitary lactotrophs , may have a risk of prolactinoma with ...
There may also be imbalances in mood-regulating neurotransmitters (brain chemicals) like dopamine and serotonin. But this isn’t well understood, either. But this isn’t well understood, either.
Very common adverse effects of olanzapine, occurring more than 10%, include: Weight gain (dose-dependent). Weight gain of over 7% of a person's initial body weight prior to treatment is in this category of very common too with some estimates of its incidence putting it at around 40.6%.
Abnormal dopamine receptor signaling and dopaminergic nerve function is implicated in several neuropsychiatric disorders. [1] Dopamine receptors are therefore common drug targets. Dopamine receptors activate different effectors through not only G-protein coupling, but also signaling through different protein (dopamine receptor-interacting ...
Dopamine receptors are implicated in many neurological processes, including motivational and incentive salience, cognition, memory, learning, and fine motor control, as well as modulation of neuroendocrine signaling. Abnormal dopamine receptor signaling and dopaminergic nerve function is implicated in several neuropsychiatric disorders. [2]