Alpha2-adrenergic impact on hypothalamic magnocellular oxytocinergic neurons in long evans and brattleboro rats: effects of agonist and antagonists.

Abstract:

:We have previously demonstrated that alpha2-adrenoceptors regulate hypothalamic magnocellular oxytocinergic (OXY) neurons in Sprague Dawley rats. Here we investigated whether activation/inhibition of alpha2-adrenoceptors may similarly trigger/downregulate the activity of OXY neurons in control Long Evans (+/+) and permanently osmotically stressed Brattleboro (di/di) rats. The effect of alpha2-adrenoceptor agonist, xylazine (XYL) and alpha2-adrenoceptor antagonists, atipamezole (ATIP), and idazoxan (IDX) were evaluated in the supraoptic (SON) and paraventricular (PVN) hypothalamic nuclei. Saline (SAL, 0.1 ml/100 g), XYL (10 mg/kg), ATIP, (1 mg/kg), and IDX (10 mg/kg) and IDX or ATIP followed by XYL were applied intraperitoneally. Rats were sacrificed 90 min later and Fos/OXY co-labelings analyzed in microscope. In control +/+ rats no or few Fos/OXY co-labelings occurred in SON and PVN. XYL significantly increased Fos incidence in OXY neurons in both nuclei. ATIP significantly suppressed the effect of XYL in both nuclei and IDX only in SON. In di/di controls 81% of OXY neurons in SON and 44% in PVN revealed Fos presence and XYL did not further elevate Fos number in SON OXY neurons and slightly increased Fos number in PVN. ATIP or IDX only partially reduced Fos in SAL or XYL treated di/di rats. Our data indicate that: (1) XYL stimulation is not effective in di/di rats because of sustained upregulation of OXY neurons activity and (2) neither ATIP nor IDX reduced significantly the OXY activity in control di/di rats. These findings suggest that alpha2-adrenoceptors have only a limited impact in maintaining OXY cells activity upregulation in PVN and SON of di/di rats.

journal_name

Cell Mol Neurobiol

authors

Bundzikova J,Pirnik Z,Zelena D,Mikkelsen JD,Kiss A

doi

10.1007/s10571-009-9388-0

subject

Has Abstract

pub_date

2009-09-01 00:00:00

pages

1015-23

issue

6-7

eissn

0272-4340

issn

1573-6830

journal_volume

29

pub_type

杂志文章
  • The effect of nimodipine on calcium homeostasis and pain sensitivity in diabetic rats.

    abstract::1. The pathogenesis of diabetic neuropathy is a complex phenomenon, the mechanisms of which are not fully understood. Our previous studies have shown that the intracellular calcium signaling is impaired in primary and secondary nociceptive neurons in rats with streptozotocin (STZ)-induced diabetes. Here, we investigat...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章

    doi:10.1007/s10571-006-9107-z

    authors: Shutov L,Kruglikov I,Gryshchenko O,Khomula E,Viatchenko-Karpinski V,Belan P,Voitenko N

    更新日期:2006-10-01 00:00:00

  • Aquaporin-mediated fluid regulation in the inner ear.

    abstract::1. The sensory functions of the inner ear (hearing and balance) critically depend on the precise regulation of two fluid compartments of highly desparate ion composition, i.e., the endolymph and the perilymph. 2. The parameters volume, ion composition, and pH need to be held at homeostasis irrespective of the hydratio...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章,评审

    doi:10.1023/a:1023636620721

    authors: Beitz E,Zenner HP,Schultz JE

    更新日期:2003-06-01 00:00:00

  • AT1 and AT2 Receptors in the Prelimbic Cortex Modulate the Cardiovascular Response Evoked by Acute Exposure to Restraint Stress in Rats.

    abstract::The prelimbic cortex (PL) is an important structure in the neural pathway integrating stress responses. Brain angiotensin is involved in cardiovascular control and modulation of stress responses. Blockade of angiotensin receptors has been reported to reduce stress responses. Acute restraint stress (ARS) is a stress mo...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章

    doi:10.1007/s10571-017-0518-9

    authors: Brasil TFS,Fassini A,Corrêa FM

    更新日期:2018-01-01 00:00:00

  • Butylphthalide Suppresses Neuronal Cells Apoptosis and Inhibits JNK-Caspase3 Signaling Pathway After Brain Ischemia /Reperfusion in Rats.

    abstract::Although Butylphthalide (BP) has protective effects that reduce ischemia-induced brain damage and neuronal cell death, little is known about the precise mechanisms occurring during cerebral ischemia/reperfusion (I/R). Therefore, the aim of this study was to investigate the neuroprotective mechanisms of BP against isch...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章

    doi:10.1007/s10571-015-0302-7

    authors: Wen XR,Tang M,Qi DS,Huang XJ,Liu HZ,Zhang F,Wu J,Wang YW,Zhang XB,Guo JQ,Wang SL,Liu Y,Wang YL,Song YJ

    更新日期:2016-10-01 00:00:00

  • Protective effects of Arctium lappa L. roots against hydrogen peroxide-induced cell injury and potential mechanisms in SH-SY5Y cells.

    abstract::Accumulated evidence has shown that excessive reactive oxygen species (ROS) have been implicated in neuronal cell death related with various chronic neurodegenerative disorders. This study was designed to explore neuroprotective effects of ethyl acetate extract of Arctium lappa L. roots (EAL) on hydrogen peroxide (H2O...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章

    doi:10.1007/s10571-014-0129-7

    authors: Tian X,Guo LP,Hu XL,Huang J,Fan YH,Ren TS,Zhao QC

    更新日期:2015-04-01 00:00:00

  • Altering cellular signaling pathways enhance gene silencing activity of shRNA, shRNA.ribozyme, and shRNA.antisense in neuroblastoma cells.

    abstract::1. RNA interference (RNAi) is a multicomponent machinery that operates in a sequence-specific manner to repress the expression of genes in most eukaryotic cells. 2. Here we wanted to investigate in a murine neuroblastoma cell line (NBP2) (a) if replacement of the loop of the short hairpin RNA (shRNA) with a hammerhead...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章

    doi:10.1007/s10571-004-6919-6

    authors: Nahreini P,Hanson AJ,Andreatta CP,Koustas WT,Prasad KN

    更新日期:2004-12-01 00:00:00

  • Microglial TLR9: Plausible Novel Target for Therapeutic Regime Against Glioblastoma Multiforme.

    abstract::An understanding of pattern recognition receptors (PRRs) and immunomodulatory approach based on activation of these receptors has provided insights critical for the management of neurological health disorders. Toll-like receptors (TLRs) are one of the most widely explored PRRs and have been exploited in the recent pas...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章,评审

    doi:10.1007/s10571-020-00925-z

    authors: Tiwari RK,Singh S,Gupta CL,Bajpai P

    更新日期:2020-07-20 00:00:00

  • Expression of platelet-derived growth factor (PDGF) receptor alpha-subunit in mouse brain: comparison of Patch mutants and normal littermates.

    abstract::1. Platelet-derived growth factor (PDGF) plays an important role not only in mesenchyme-derived tissues, but also in the mammalian central nervous system. The Patch mutant (Ph/+) lacks one copy of the PDGFR-alpha gene. However, it is not clear whether there are differences in expression of PDGF receptor alpha-subunit ...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章

    doi:10.1007/BF02150228

    authors: Zhang FX,Hutchins JB

    更新日期:1996-08-01 00:00:00

  • Enhanced BDNF signaling is associated with an antidepressant-like behavioral response and changes in brain monoamines.

    abstract::1. Neurotrophins and serotonin have both been implicated in the pathophysiology of depression and in the mechanisms of antidepressant treatments. 2. Brain-derived neurotrophic factor (BDNF) influences the growth and plasticity of serotonergic (5-HT) neurons via the activation of trkB receptor. 3. Transgenic mice overe...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章

    doi:10.1007/s10571-005-8468-z

    authors: Koponen E,Rantamäki T,Voikar V,Saarelainen T,MacDonald E,Castrén E

    更新日期:2005-09-01 00:00:00

  • Molecular Variants in Human Trace Amine-Associated Receptors and Their Implications in Mental and Metabolic Disorders.

    abstract::We provide a comprehensive review of the available evidence on the pathophysiological implications of genetic variants in the human trace amine-associated receptor (TAAR) superfamily. Genes coding for trace amine-associated receptors (taars) represent a multigene family of G-protein-coupled receptors, clustered to a s...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章,评审

    doi:10.1007/s10571-019-00743-y

    authors: Rutigliano G,Zucchi R

    更新日期:2020-03-01 00:00:00

  • The rate of Tau synthesis is differentially regulated during postnatal development in mouse cerebellum.

    abstract::1. Tau, which is a microtubule-associated protein, with mRNA targeted to the axon and growth cone, is involved in axonal elongation. During postnatal development in mouse, Tau expression in cerebellar granule cells is reduced afte the second postnatal week. The aim of this work was to study the regulation of the rate ...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章

    doi:10.1023/a:1013823524302

    authors: Vilá-Ortiz GJ,Santa-Coloma TA,Carminatti H,Radrizzani M

    更新日期:2001-10-01 00:00:00

  • Endothelin-1 binding to endothelin receptors in the rat anterior pituitary gland: interaction in the recognition of endothelin-1 between ETA and ETB receptors.

    abstract::1. 125I-Endothelin (ET)-1 binding to the rat anterior pituitary gland was saturable and single, with a Kd of 71 pM and a Bmax of 120 fmol/mg. 2. When 1.0 microM BQ-123 (ETA antagonist) was added to the incubation buffer, the binding parameters were 8.3 pM and 8.0 fmol/mg, whereas 10 nM sarafotoxin S6c (ETB agonist) ex...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章

    doi:10.1023/a:1022557717481

    authors: Himeno A,Shigematsu K,Taguchi T,Niwa M

    更新日期:1998-08-01 00:00:00

  • Cytoplasmic c-Jun N-terminal immunoreactivity: a hallmark of retinal apoptosis.

    abstract::1. We investigated the association of c-Jun with apoptosis within retinal tissue. Explants of the retina of neonatal rats were subject to a variety of procedures that cause apoptosis of specific classes of retinal cells at distinct stages of differentiation. The expression of c-Jun was detected by Western Blot, and im...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章

    doi:10.1023/a:1021857007976

    authors: Chiarini LB,de Freitas FG,Leal-Ferreira ML,Tolkovsky A,Linden R

    更新日期:2002-12-01 00:00:00

  • Effects of adrenocortical steroids on long-term potentiation in the limbic system: basic mechanisms and behavioral consequences.

    abstract::Hippocampal structures are a major target for adrenal steroid hormones, and hence these neural regions are some of the most likely mediators of the effects of adrenocortical steroids on behavior. Memory disturbance, in particular biasing toward negative contents, are part of the symptomatology presented by depressive ...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章

    doi:10.1007/BF00711580

    authors: Dubrovsky B,Gijsbers K,Filipini D,Birmingham MK

    更新日期:1993-08-01 00:00:00

  • Coexisting peptides in hypothalamic neuroendocrine systems: some functional implications.

    abstract::1. Coexisting with oxytocin or vasopressin in the cell bodies and nerve terminals of the hypothalamic-neurohypophysial system are smaller amounts of other peptides. For a number of these "copeptides" there is strong evidence of corelease with the major magnocellular hormones. Guided by the location of their specific r...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章,评审

    doi:10.1007/BF00712791

    authors: Bondy CA,Whitnall MH,Brady LS,Gainer H

    更新日期:1989-12-01 00:00:00

  • Neuronal membrane depolarization and the control of cholinergic muscarinic receptors: selective effect on different neuronal cell types.

    abstract::1. The possibility that a long-lasting neuronal activation regulates the expression of muscarinic cholinergic receptors was studied with three cultured neuronal cell lines. 2. Continuous depolarization of a subclone of the neuroblastoma-glioma NG108-15 hybrid cells with potassium chloride increased by 45-75% the numbe...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章

    doi:10.1007/BF00711445

    authors: Simantov R,Levy R

    更新日期:1989-03-01 00:00:00

  • Naturally occurring genetic variants in human chromogranin A (CHGA) associated with hypertension as well as hypertensive renal disease.

    abstract::Chromogranin A (CHGA) plays a fundamental role in the biogenesis of catecholamine secretory granules. Changes in storage and release of CHGA in clinical and experimental hypertension prompted us to study whether genetic variation at the CHGA locus might contribute to alterations in autonomic function, and hence hypert...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章

    doi:10.1007/s10571-010-9600-2

    authors: Chen Y,Rao F,Wen G,Gayen JR,Zhang K,Vaingankar SM,Biswas N,Mahata M,Friese RS,Fung MM,Salem RM,Nievergelt C,Bhatnagar V,Hook VY,Ziegler MG,Mahata SK,Hamilton BA,O'Connor DT

    更新日期:2010-11-01 00:00:00

  • Gonadal steroids do not affect apolipoprotein E expression in aging mouse cerebral cortex.

    abstract::The allelic variant of apolipoprotein (Apo) E4 is a known risk factor for the development of most common late onset form of Alzheimer's disease (AD). As aging is associated with reduced circulating level of gonadal steroid hormones, hormone replacement therapies have been used for the possible treatment of AD. Both es...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章

    doi:10.1007/s10571-010-9631-8

    authors: Singh S,Thakur MK

    更新日期:2011-04-01 00:00:00

  • Prevention of death of axotomized hypoglossal neurones and promotion of regeneration by chitin grafting.

    abstract::1. Chitin is known to promote skin wound healing. In this study, chitin, prepared from Zuwai crab shell, was used as a bridge between the proximal and distal stumps of cut hypoglossal nerves in shrews. We compared the effects of chitin on the regeneration of transected right hypoglossal nerve axons, with those of porc...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章

    doi:10.1023/a:1007055626632

    authors: Itoh M,Izumi S,Uemura M,Baba N,Suyama K,Kuga Y,Mizuno A,Nakane PK,Koji T

    更新日期:2000-10-01 00:00:00

  • A Dual Role of ATM in Ischemic Preconditioning and Ischemic Injury.

    abstract::The ataxia-telangiectasia mutated (ATM) protein is regarded as the linchpin of cellular defenses to stress. Deletion of ATM results in strong oxidative stress and degenerative diseases in the nervous system. However, the role of ATM in neuronal ischemic preconditioning and lethal ischemic injury is still largely unkno...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章

    doi:10.1007/s10571-019-00773-6

    authors: Xie GH,Dai HJ,Liu F,Zhang YP,Zhu L,Nie JJ,Wu JH

    更新日期:2020-07-01 00:00:00

  • Transient Switching of NMDA-Dependent Long-Term Synaptic Potentiation in CA3-CA1 Hippocampal Synapses to mGluR1-Dependent Potentiation After Pentylenetetrazole-Induced Acute Seizures in Young Rats.

    abstract::The mechanisms of impairment in long-term potentiation after status epilepticus (SE) remain unclear. We investigated the properties of LTP induced by theta-burst stimulation in hippocampal slices of rats 3 h and 1, 3, and 7 days after SE. Seizures were induced in 3-week old rats by a single injection of pentylenetetra...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章

    doi:10.1007/s10571-018-00647-3

    authors: Postnikova TY,Trofimova AM,Ergina JL,Zubareva OE,Kalemenev SV,Zaitsev AV

    更新日期:2019-03-01 00:00:00

  • Impact of Astrocytes on the Injury Induced by In Vitro Ischemia.

    abstract::Cell cultures are characterized by their simplicity, controllability, and ability to provide detailed basic information on how a particular cell population responds to specific stimuli or insult. These characteristics led to their extensive application in the study of molecular interactions and represent a valuable to...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章

    doi:10.1007/s10571-017-0483-3

    authors: Roque C,Baltazar G

    更新日期:2017-11-01 00:00:00

  • Characterization of AT2 receptor expression in NIH 3T3 fibroblasts.

    abstract::1. A high expression of angiotensin II receptors and of angiotensin-converting enzyme (ACE) activity was detected in confluent NIH 3T3 fibroblasts. 2. Characterization with selective ligands, dithiothreitol, and GTP gamma S, indicated that only the AT2 subtype was expressed. 3. AT2 receptors and ACE expression were st...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章

    doi:10.1023/a:1006985329240

    authors: Heemskerk FM,Zorad S,Xu N,Gutkind SJ,Saavedra JM

    更新日期:1999-04-01 00:00:00

  • Involvement of Fra-1 in Retinal Ganglion Cell Apoptosis in Rat Light-Induced Retina Damage Model.

    abstract::Cell cycle re-entry, in which Fra-1 (transcription factor FOS-related antigen 1) plays an important role, is a key process in neuronal apoptosis. However, the expression and function of Fra-1 in retinal ganglion cell (RGC) apoptosis are unknown. To investigate whether Fra-1 was involved in RGC apoptosis, we performed ...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章

    doi:10.1007/s10571-016-0346-3

    authors: Liu X,Yang X,Zhu R,Dai M,Zhu M,Shen Y,Fang H,Sang A,Chen H

    更新日期:2017-01-01 00:00:00

  • Involvement of RhoA/ROCK Signaling in Aβ-Induced Chemotaxis, Cytotoxicity and Inflammatory Response of Microglial BV2 Cells.

    abstract::Reactive microglia clustering around amyloid plaques in brain is a histopathological feature of Alzheimer's disease (AD) and reflects the contribution of neuroinflammation in AD pathogenesis. β-Amyloid peptide (Aβ) has been shown to induce a range of microglial responses including chemotaxis, cytotoxicity and inflamma...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章

    doi:10.1007/s10571-019-00668-6

    authors: Zhang X,Ye P,Wang D,Liu Y,Cao L,Wang Y,Xu Y,Zhu C

    更新日期:2019-07-01 00:00:00

  • Activation of 5-HT(2C) receptor promotes the expression of neprilysin in U251 human glioma cells.

    abstract::Abeta accumulation, a hallmark of Alzheimer's disease, promotes the disease progress in multiple facets. Abeta is formed through amyloidogenic cleavage pathway of amyloid precursor protein (APP). Production of Abeta can be decreased via activation of 5-HT2C receptor, which enhances alternative APP non-amyloidogenic cl...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章

    doi:10.1007/s10571-014-0138-6

    authors: Tian XL,Yu LH,Li WQ,Hu Y,Yin M,Wang ZJ

    更新日期:2015-04-01 00:00:00

  • Low-Molecular-Weight Fucoidan Attenuates Mitochondrial Dysfunction and Improves Neurological Outcome After Traumatic Brain Injury in Aged Mice: Involvement of Sirt3.

    abstract::Traumatic brain injury (TBI) is a leading cause of death and long-term disability. Fucoidan, a sulfated polysaccharide extracted from brown algae, possesses potent anti-oxidative and anti-inflammatory effects. Considering TBI happens frequently in adults, especially in aged individuals, we herein sought to define the ...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章

    doi:10.1007/s10571-015-0323-2

    authors: Wang T,Zhu M,He ZZ

    更新日期:2016-11-01 00:00:00

  • Characterization of NO/cGMP-mediated responses in identified motoneurons.

    abstract::1. Nitric oxide (NO) is thought to play a neuromodulatory role in the nervous system of vertebrate and invertebrate species. In the hornworm Manduca sexta, NO-mediated signaling has been implicated in behavioral and developmental processes, but its exact function in neurons is unknown. In this study, we identify speci...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章

    doi:10.1007/s10571-006-9091-3

    authors: Zayas RM,Trimmer BA

    更新日期:2007-03-01 00:00:00

  • Divergent regulation of muscarinic binding sites and acetylcholinesterase in discrete regions of the developing human fetal brain.

    abstract::The expression of muscarinic acetylcholine binding sites and of cholinesterases was studied in extracts prepared from discrete regions of the human fetal brain, between the gestational ages of 14 and 24 weeks. The specific binding of [3H]N-methyl-4-piperidyl benzilate [( 4H]-4NMPB) to muscarinic binding sites ranged b...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章

    doi:10.1007/BF00742976

    authors: Egozi Y,Sokolovsky M,Schejter E,Blatt I,Zakut H,Matzkel A,Soreq H

    更新日期:1986-03-01 00:00:00

  • Feedback regulation of SREBP and aromatase in A beta(25-35)-supplemented human neuroblastoma cells.

    abstract::1. The analogies between the processing of amyloid precursor protein (APP) and other transmembrane sterol regulatory element binding proteins (SREBPs) inspired us to conduct further studies on whether beta-amyloid (Abeta) affects aromatase by interacting with APP and SREBP. 2. In this study, cultured human neuroblasto...

    journal_title:Cellular and molecular neurobiology

    pub_type: 杂志文章

    doi:10.1007/s10571-006-9060-x

    authors: Kelicen P,Nordberg A

    更新日期:2006-05-01 00:00:00