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Of cilia, titin, and neurosteroids [PDF]
This month’s installment of Generally Physiological discusses a calcium compartment in primary cilia, how changes in titin splicing can lead to skeletal muscle myopathy, and a negative feedback loop whereby a neurosteroid protects against hyperactivation of type-1 cannabinoid (CB1) receptors.
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Allopregnanolone and pregnanolone—neurosteroids synthesized from progesterone in the brain, adrenal gland, ovary and testis—have been implicated in a range of neuropsychiatric conditions including seizure disorders, post-traumatic stress disorder, major ...
Jennifer J. Liang, Ann M. Rasmusson
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Pavel Mareš,1 Hana Chodounská,2 Ewa Szczurowska,2 Hana Kubová,1 Eva Kudova2 1Institute of Physiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic; 2Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech ...
Mareš P +4 more
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Neurosteroid Biosynthesis and Action in the Purkinje Cell
It is now clearly established that steroids can be synthesized de novo by the vertebrate brain. Such steroids are called neurosteroids. To understand neurosteroid action in the brain, data on the regio- and temporal-specific synthesis of neurosteroids ...
Kazuyoshi Tsutsui
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Gonadal steroid hormones are neurotrophic and neuroprotective. These effects are modulated by local metabolism of the hormones within the brain. Such control is necessary to maintain normal function, as several signaling pathways that are activated by ...
Ari Loren Mendell, Neil James MacLusky
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New Biosynthesis and Biological Actions of Avian Neurosteroids
De novo neurosteroidogenesis from cholesterol occurs in the brain of various avian species. However, the biosynthetic pathways leading to the formation of neurosteroids are still not completely elucidated.
Kazuyoshi Tsutsui +7 more
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Migraine and cluster headache show impaired neurosteroids patterns
Background Perturbation of neuronal excitability contributes to migraine. Neurosteroids modulate the activity of γ-aminobutyric acid A and N-methyl-d-aspartate receptors, and might be involved in the pathogenesis of migraine.
Angela Koverech +13 more
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Regulation of neurosteroid biosynthesis by neurotransmitters and neuropeptides
The enzymatic pathways leading to the synthesis of bioactive steroids in the brain are now almost completely elucidated in various groups of vertebrates and, during the last decade, the neuronal mechanisms involved in the regulation of neurosteroid ...
Jean-Luc eDo-Rego +12 more
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Neurosteroids and GABA-A Receptor Function [PDF]
Neurosteroids represent a class of endogenous steroids that are synthesized in the brain, the adrenals, and the gonads and have potent and selective effects on the GABAA-receptor. 3α-hydroxy A-ring reduced metabolites of progesterone, deoxycorticosterone, and testosterone are positive modulators of GABA(A)-receptor in a non-genomic manner ...
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First-episode psychosis (FEP) and first-episode schizophrenia (FES) are serious psychiatric conditions. Neurosteroids, known to modulate central nervous system function, may play a role in the pathophysiology of these disorders.
Alicja Gładysz +3 more
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