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substantia nigra
Also known as: substantia nigra, substantia nigra (SN)
Facts (9)
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Extent and Health Consequences of Chronic Sleep Loss and ... - NCBI ncbi.nlm.nih.gov 7 facts
claimNeurodegeneration in Parkinson's disease involves a reduction in the number of dopaminergic neurons in the substantia nigra, noradrenergic neurons in the locus coeruleus, and cholinergic neurons in the pedunculopontine nucleus.
claimBraak and colleagues (2004) found that Lewy body degeneration begins in the lower brainstem and ascends to involve the substantia nigra only after several years, which is consistent with observations that REM sleep alterations may precede movement disorders by several years in many Parkinson’s disease patients.
measurementIn patients with neurodegenerative conditions, dopaminergic neurons in the substantia nigra and noradrenergic neurons in the locus coeruleus are dramatically reduced in number (Jellinger, 1986).
claimDopaminergic neurons in the substantia nigra, noradrenergic neurons in the locus coeruleus, and cholinergic neurons in the pedunculopontine nucleus are reduced in number in neurodegenerative conditions.
claimThe substantia nigra, a region of the brain responsible for controlling voluntary movement through dopamine-relying neurons, has reduced iron levels in individuals with Restless Legs Syndrome.
claimIron levels are reduced in the substantia nigra, a region of the brain responsible for controlling voluntary movement through neurons that rely on dopamine to communicate.
claimDopaminergic neurons in the substantia nigra are dramatically reduced in number, as are noradrenergic neurons in the locus coeruleus (Jellinger, 1986) and cholinergic neurons in the pedunculopontine nucleus (Zweig et al., 1989).
Effects of psychedelics on neurogenesis and broader neuroplasticity link.springer.com Dec 19, 2024 2 facts
measurementA 40 mg/kg dose of ibogaine elevated GDNF levels in the ventral tegmental area (VTA) and substantia nigra (SN) of rat brains 24 hours post-injection, according to Marton et al. (2019).
measurementIbogaine administration at doses of 20 mg/kg and 40 mg/kg dose-dependently upregulated BDNF and NGF mRNA in the prefrontal cortex (PFC), ventral tegmental area (VTA), substantia nigra (SN), and nucleus accumbens (NAcc) of rat brains 24 hours post-injection, according to Marton et al. (2019).