Abstract:
:Serotonin (5-HT) is one of the main transmitters in the nervous system. Serotonergic neurons in the raphe nuclei in the brainstem innervate most parts of the central nervous system including motoneurons in the spinal cord and brainstem. This review will focus on the modulatory role that 5-HT exerts on motoneurons and its physiological consequences. The somato-dendritic compartments of motoneurons are densely innervated by serotonergic synaptic boutons and several receptors are expressed in the membrane of motoneurons including 5-HT1A, 5-HT1B, 5-HT1D, 5-HT2A, 5-HT2B, 5-HT2C and 5-HT5A. The activation of serotonergic receptors induces a general increase of the excitability of motoneurons through the modulation of several classes of ion channels. 5-HT depolarizes motoneurons towards the threshold for action potentials by inhibiting leak conductances and promoting a hyperpolarization activated cationic current. At the same time, 5-HT increases the firing frequency by inhibiting the small Ca2+ activated K+ conductance (SK) responsible for the medium afterhyperpolarization (AHP) following action potentials. 5-HT also promotes persistent inward currents mediated by voltage sensitive Ca2+ and Na+ conductances, producing a sustained depolarization and an amplification of synaptic inputs. Under pathological conditions, such as after a spinal cord injury, the promotion of persistent inward currents by serotonin and/or the overexpression of autoactive serotonergic receptors may contribute to motoneuronal excitability, muscle spasms and spasticity and hence, impairment of stereotyped motor behaviors such as locomotion, ejaculation and micturition.
journal_name
Curr Pharm Desjournal_title
Current pharmaceutical designauthors
Perrier JF,Rasmussen HB,Christensen RK,Petersen AVdoi
10.2174/13816128113199990341subject
Has Abstractpub_date
2013-01-01 00:00:00pages
4371-84issue
24eissn
1381-6128issn
1873-4286pii
CPD-EPUB-20130121-4journal_volume
19pub_type
杂志文章,评审abstract::The pivotal therapeutic role of myocardial metabolic modulation in ischemic heart disease (IHD) is increasingly recognized. Among the others, inhibitors of free fatty acids (FFA) oxidation have been consistently shown to play an important role in the therapeutic strategy of IHD patients. Additionally, abnormalities of...
journal_title:Current pharmaceutical design
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journal_title:Current pharmaceutical design
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journal_title:Current pharmaceutical design
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journal_title:Current pharmaceutical design
pub_type: 杂志文章,评审
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journal_title:Current pharmaceutical design
pub_type: 杂志文章,评审
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journal_title:Current pharmaceutical design
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abstract::Myelodysplastic syndromes (MDS) are a group of aquired hematopoietic disorders characterized by ineffective hematopoiesis, and increased risk of progression of acute myeloid leukemia. For a long period of time, the standard therapy for MDS was hematopoietic stem cell transplantation, however DNA methyltransferase inhi...
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更新日期:2012-01-01 00:00:00
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journal_title:Current pharmaceutical design
pub_type: 杂志文章,评审
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更新日期:2015-01-01 00:00:00
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journal_title:Current pharmaceutical design
pub_type: 杂志文章,评审
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journal_title:Current pharmaceutical design
pub_type: 杂志文章,评审
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更新日期:2009-01-01 00:00:00
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journal_title:Current pharmaceutical design
pub_type: 杂志文章,评审
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pub_type: 杂志文章,评审
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更新日期:2014-01-01 00:00:00
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journal_title:Current pharmaceutical design
pub_type: 杂志文章,评审
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更新日期:2005-01-01 00:00:00
abstract::Prevention, improved screening, and better treatment regimens have improved cancer incidence and mortality in the last decade. Chemoradiation continues to cause high morbidity in patients undergoing treatment. DNA therapeutics have the potential to modify the genes that cause tumor progression in order to produce a re...
journal_title:Current pharmaceutical design
pub_type: 杂志文章,评审
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abstract::In the last two decades a tremendous development has been noticed in our understanding of the purinergic system, consisting of heterogeneously expressed purinoceptor subtypes and its classical agonists: e.g., adenosine triphosphate, uridine triphosphate or complex dinucleoside polyphosphates. These agonists exert mult...
journal_title:Current pharmaceutical design
pub_type: 杂志文章,评审
doi:10.2174/138161212803582504
更新日期:2012-01-01 00:00:00
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journal_title:Current pharmaceutical design
pub_type: 杂志文章,评审
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pub_type: 杂志文章,评审
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journal_title:Current pharmaceutical design
pub_type: 杂志文章,评审
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更新日期:2020-01-01 00:00:00
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journal_title:Current pharmaceutical design
pub_type: 杂志文章,meta分析
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更新日期:2012-01-01 00:00:00
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journal_title:Current pharmaceutical design
pub_type: 杂志文章,评审
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更新日期:2015-01-01 00:00:00
abstract:BACKGROUND:Lipid nanoparticles have attracted increased degree of scientific and commercial attention in the last decade. The lipidic nanoparticles have emerged as a potential alternative to other nano-scale systems due to their various advantages over them and also due to overcoming the shortcomings of the already ava...
journal_title:Current pharmaceutical design
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更新日期:2017-11-21 00:00:00
abstract::Various growth factors such as the platelet derived growth factor (PDGF), insulin-like growth factor (IGF), epidermal growth factor (EGF), fibroblast growth factor (FGF), and vascular endothelial growth factor (VEGF) transduce their mitogenic signals through the activation of tyrosine kinase receptors (RTKs). Since en...
journal_title:Current pharmaceutical design
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更新日期:2004-01-01 00:00:00
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journal_title:Current pharmaceutical design
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更新日期:2019-01-01 00:00:00
abstract::Biochemical biomarkers are important candidates for the diagnosis and prognosis of neurological diseases of autoimmune etiology, since they may reflect the presence, nature and intensity of certain immune responses caused by both genetic and environmental processes. Different body fluids such as cerebrospinal fluid (C...
journal_title:Current pharmaceutical design
pub_type: 杂志文章,评审
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更新日期:2012-01-01 00:00:00
abstract::DNA methylation, a major regulator of epigenetic modifications has been shown to alter the expression of genes that are involved in aspects of glucose metabolism such as glucose intolerance, insulin resistance, β-cell dysfunction and other conditions, and it ultimately leads to the pathogenesis of type 2 diabetes mell...
journal_title:Current pharmaceutical design
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更新日期:2016-01-01 00:00:00