Lipopolysaccharide increases gamma-aminobutyric acid synthesis in medial preoptic neurones in association with inhibition of steroid-induced luteinising hormone surge in female rats.

Abstract:

:Lipopolysaccharide (LPS), an endotoxin produced by gram-negative bacteria, inhibits gonadotrophin secretion and ovulation in female mammals. The present study was undertaken to examine whether gamma-aminobutyric acid (GABA)-synthesising neurones in the medial preoptic area (mPOA) may be involved in the inhibition by LPS of progesterone-induced luteinising hormone (LH) surge in ovariectomised oestrogen-primed rats. An intravenous injection of LPS (10 microg) at noon significantly increased the content of glutamic acid decarboxylase 67 (GAD67), a GABA-synthesising enzyme, in brain tissues including the mPOA. LPS treatment also significantly increased the number of detectable GAD67-immunoreactive (ir) as well as GABA-ir cells in the mPOA, compared to control rats. The same LPS challenge completely eliminated the steroid-induced LH surge, which was normally induced in control rats in the afternoon. A local injection of muscimol (100 ng), a GABA(A) receptor agonist, into the mPOA also significantly attenuated the LH surge, mimicking the effect of LPS. These results suggest that LPS stimulates GABA synthesis in preoptic neurones, which in turn inhibit the LH surge in female rats. The results also support the hypothesis that diminution of the GABAergic suppressive activity in the mPOA permits the LH surge to be induced.

journal_name

J Neuroendocrinol

authors

Akema T,He D,Sugiyama H

doi

10.1111/j.1365-2826.2005.01358.x

subject

Has Abstract

pub_date

2005-10-01 00:00:00

pages

672-8

issue

10

eissn

0953-8194

issn

1365-2826

pii

JNE1358

journal_volume

17

pub_type

杂志文章
  • Regulation of MT melatonin receptor expression in the foetal rat pituitary.

    abstract::During development, melatonin receptors are transiently expressed in multiple neuroendocrine tissues, suggesting a novel role for melatonin in developmental physiology. The best characterised model of melatonin signalling during development is the pars distalis of the rat pituitary. However, although many studies have...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章

    doi:10.1111/j.1365-2826.2005.01389.x

    authors: Johnston JD,Klosen P,Barrett P,Hazlerigg DG

    更新日期:2006-01-01 00:00:00

  • Characterization of gonadotrophin-releasing hormone precursor cDNA in the Old World mole-rat Cryptomys hottentotus pretoriae: high degree of identity with the New World guinea pig sequence.

    abstract::Regulation of pituitary gonadotrophins by the decapeptide gonadotrophin-releasing hormone 1 (GnRH1) is crucial for the development and maintenance of reproductive functions. A common amino acid sequence for this decapeptide, designated as 'mammalian' GnRH, has been identified in all mammals thus far investigated with ...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章

    doi:10.1111/j.1365-2826.2005.01307.x

    authors: Kalamatianos T,du Toit L,Hrabovszky E,Kalló I,Marsh PJ,Bennett NC,Coen CW

    更新日期:2005-05-01 00:00:00

  • Cannabinoids modulate synaptic activity in the rat supraoptic nucleus.

    abstract::In the present study, we investigated the effects of the cannabinoid receptor agonist CP55,940 on excitatory and inhibitory synaptic transmission in the rat supraoptic nucleus. Whole-cell patch clamp recordings were performed on supraoptic neurones in in vitro brain slice preparations. CP55,940 significantly reduced t...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章

    doi:10.1111/j.1365-2826.2005.01350.x

    authors: Soya A,Serino R,Fujihara H,Onaka T,Ozaki Y,Saito T,Nakamura J,Ueta Y

    更新日期:2005-09-01 00:00:00

  • Assessment of spike activity in the supraoptic nucleus.

    abstract::Novel approaches to the characterization of coding carried by spike trains are discussed. Measuring firing frequency alone may only partially reflect spike patterning, and can only quantify changes of the most obvious kind. We have devised a method that combines probabilistic and information approaches to quantify the...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章,评审

    doi:10.1111/j.0953-8194.2004.01166.x

    authors: Bhumbra GS,Inyushkin AN,Dyball RE

    更新日期:2004-04-01 00:00:00

  • Metabotropic glutamate receptor subtype 7 has critical roles in regulation of the endocrine system and social behaviours.

    abstract::Metabotropic glutamate receptor subtype 7 (mGluR7) is one of the group III mGluRs, which are negatively coupled to adenylate cyclase via Gi/Go proteins and localised to presynaptic active zones of the mammalian central nervous system. We previously reported that mGluR7 is essential for intermale aggression and amygdal...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章

    doi:10.1111/jne.12575

    authors: Masugi-Tokita M,Yoshida T,Kageyama S,Kawata M,Kawauchi A

    更新日期:2018-03-01 00:00:00

  • Both p110alpha and p110beta isoforms of phosphatidylinositol 3-OH-kinase are required for insulin signalling in the hypothalamus.

    abstract::Both insulin and leptin action in the brain are considered to involve activation of phosphoinositide 3-kinase (PI3K), although the roles of different PI3K isoforms in insulin signalling in the hypothalamus are unknown. In the present study, we characterised the roles of these isoforms in hypothalamic insulin and lepti...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章

    doi:10.1111/j.1365-2826.2010.01975.x

    authors: Tups A,Anderson GM,Rizwan M,Augustine RA,Chaussade C,Shepherd PR,Grattan DR

    更新日期:2010-06-01 00:00:00

  • The median eminence detects and responds to circulating prolactin in the male mouse.

    abstract::In addition to its established lactational roles, prolactin acts on multiple target tissues and its circulating levels are responsive to a range of physiological stimuli. The present study used immunohistochemistry to demonstrate that systemic administration of prolactin activates target cells in the arcuate nucleus a...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章

    doi:10.1111/jne.12733

    authors: Kirk SE,Grattan DR,Bunn SJ

    更新日期:2019-06-01 00:00:00

  • Regulation of rat APJ receptor messenger ribonucleic acid expression in magnocellular neurones of the paraventricular and supraopric nuclei by osmotic stimuli.

    abstract::The novel apelin receptor (APJ receptor, APJR) has a restricted expression in the central nervous system suggestive of an involvement in the regulation of body fluid homeostasis. The endogenous ligand for APJR, apelin, is also highly concentrated in regions that are involved in the control of drinking behaviour. While...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章

    doi:10.1046/j.1365-2826.2003.01044.x

    authors: O'Carroll AM,Lolait SJ

    更新日期:2003-07-01 00:00:00

  • PELP1: a key mediator of oestrogen signalling and actions in the brain.

    abstract::Proline-, glutamic acid- and leucine-rich protein 1 (PELP1) is an oestrogen receptor (ER) coregulator protein identified by our collaborative group. Work from our laboratory and others has shown that PELP1 is a scaffold protein that interacts with ERs and kinase signalling factors, as well as proteins involved in chro...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章,评审

    doi:10.1111/jne.12484

    authors: Thakkar R,Sareddy GR,Zhang Q,Wang R,Vadlamudi RK,Brann D

    更新日期:2018-02-01 00:00:00

  • Regulation of galanin receptor GalR1 mRNA expression by ovarian steroids in oestrogen receptor alpha-immunoreactive neurones: identification of distinct populations of neurones in the preoptic area.

    abstract::This study examined whether gonadal steroids are involved in regulating galanin receptor 1 (GalR1) mRNA expression in neurones that contain oestrogen receptor alpha (ERalpha), in three regions of the preoptic area (POA) known to be involved in the control of gonadotropin secretion. Double-labelling immunohistochemistr...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章

    doi:10.1111/j.0953-8194.2004.01147.x

    authors: Mitchell V,Lecompte F,Beauvillain JC

    更新日期:2004-02-01 00:00:00

  • From sensory circumventricular organs to cerebral cortex: Neural pathways controlling thirst and hunger.

    abstract::Much progress has been made during the past 30 years with respect to elucidating the neural and endocrine pathways by which bodily needs for water and energy are brought to conscious awareness through the generation of thirst and hunger. One way that circulating hormones influence thirst and hunger is by acting on neu...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章,评审

    doi:10.1111/jne.12689

    authors: McKinley MJ,Denton DA,Ryan PJ,Yao ST,Stefanidis A,Oldfield BJ

    更新日期:2019-03-01 00:00:00

  • Autoradiographic detection of oxytocin- and vasopressin-binding sites in various subnuclei of the bed nucleus of the stria terminalis in the rat. Effects of functional and experimental sexual steroid variations.

    abstract::Abstract Oxytocin- and vasopressin-binding sites were detected by autoradiography on films and on emulsion-coated sections of rat brains using highly selective [(125)|]-labelled oxytocin and vasopressin antagonists. Two distinct areas with high concentrations of oxytocin-binding sites were detected in the bed nucleus ...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章

    doi:10.1111/j.1365-2826.1991.tb00335.x

    authors: Kremarik P,Freund-Mercier MJ,Stoeckel ME

    更新日期:1991-12-01 00:00:00

  • Anabolic androgenic steroid abuse: multiple mechanisms of regulation of GABAergic synapses in neuroendocrine control regions of the rodent forebrain.

    abstract::Anabolic androgenic steroids (AAS) are synthetic derivatives of testosterone originally developed for clinical purposes but are now predominantly taken at suprapharmacological levels as drugs of abuse. To date, almost 100 different AAS compounds that vary in metabolic fate and physiological effects have been designed ...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章,评审

    doi:10.1111/j.1365-2826.2011.02151.x

    authors: Oberlander JG,Porter DM,Penatti CA,Henderson LP

    更新日期:2012-01-01 00:00:00

  • Pituitary tumour therapy: using the biology.

    abstract::Pituitary tumours are benign but cause significant problems, both because of their compressive effects on brain structures and also because of the syndromes of hormone excess or deficiency that they can cause. Endocrine therapy has become increasingly successful, with the development of dopamine agonists and somatosta...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章

    doi:

    authors: Davis JR,Trainer PJ

    更新日期:2002-12-01 00:00:00

  • Ibotenate lesions of the diagonal band of broca attenuate baroreceptor sensitivity of rat supraoptic vasopressin neurons.

    abstract::Previous electrophysiological studies in the rat suggest that neurons in the diagonal band of Broca participate in baroreceptor-induced suppression of the spontaneous activity of vasopressin-secreting neurons in the hypothalamic supraoptic nucleus. In order to test this hypothesis, extracellular recordings were obtain...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章

    doi:10.1111/j.1365-2826.1992.tb00172.x

    authors: Cunningham JT,Nissen R,Renaud LP

    更新日期:1992-06-01 00:00:00

  • Localization in the nervous system of Drosophila melanogaster of a C-terminus anti-peptide antibody to a cloned Drosophila muscarinic acetylcholine receptor.

    abstract::Localization in the nervous system of Drosophila melanogaster of a cloned Drosophila muscarinic acetylcholine receptor (mAChR) was investigated using a polyclonal antiserum raised against a peptide corresponding to the predicted receptor carboxyl terminal domain. Immunocytochemical studies on fly sections indicated th...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章

    doi:10.1111/j.1365-2826.1995.tb00768.x

    authors: Harrison JB,Chen HH,Blake AD,Huskisson NS,Barker P,Sattelle DB

    更新日期:1995-05-01 00:00:00

  • Photoperiod affects the ability of testosterone to alter proopiomelanocortin mRNA, but not luteinizing hormone-releasing hormone mRNA, levels in male sheep.

    abstract::This study tested the hypothesis that photoperiod affects the ability of testosterone to reduce proopiomelanocortin (POMC) mRNA levels in the arcuate nucleus and luteinizing hormone-releasing hormone (LHRH) mRNA levels in both the preoptic area (POA) or medial basal hypothalamus (MBH). Twenty castrated male sheep were...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章

    doi:10.1046/j.1365-2826.1998.00243.x

    authors: Hileman SM,Kuehl DE,Jackson GL

    更新日期:1998-08-01 00:00:00

  • Encoding time of day and time of year by the avian circadian system.

    abstract::The most important zeitgeber for seasonal rhythmicity of physiology and behaviour in birds is the annual cycle of photoperiod. Regulatory mechanisms are less well understood in birds than in mammals since photic information can be perceived by photoreceptors in the retina and the pineal gland, as well as in the brain,...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章,评审

    doi:10.1046/j.1365-2826.2003.01003.x

    authors: Brandstätter R

    更新日期:2003-04-01 00:00:00

  • The G protein-coupled oestrogen receptor, GPER1, mediates direct anti-inflammatory effects of oestrogens in human cholinergic neurones from the nucleus basalis of Meynert.

    abstract::It has been well established, particularly in animal models, that oestrogens exert neuroprotective effects in brain areas linked to cognitive processes. A key protective role could reside in the capacity of oestrogen to modulate the inflammatory response. However, the direct neuroprotective actions of oestrogens on ne...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章

    doi:10.1111/jne.12837

    authors: Sarchielli E,Guarnieri G,Idrizaj E,Squecco R,Mello T,Comeglio P,Gallina P,Maggi M,Vannelli GB,Morelli A

    更新日期:2020-03-01 00:00:00

  • Neuropeptide Y (NPY) delays the oestrogen-induced luteinizing hormone (LH) surge in the ovariectomized ewe: further evidence that NPY has a predominant negative effect on LH secretion in the ewe.

    abstract::Studies in rats suggest that neuropeptide Y (NPY) plays a stimulatory role in the generation of the preovulatory luteinizing hormone (LH) surge, via the Y1 receptor. We have investigated this issue using the oestradiol benzoate (EB)-treated ovariectomized (OVX) ewe which is a model for the preovulatory LH surge. A Y1 ...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章

    doi:10.1046/j.1365-2826.2003.01087.x

    authors: Estrada KM,Pompolo S,Morris MJ,Tilbrook AJ,Clarke IJ

    更新日期:2003-11-01 00:00:00

  • A genomic analysis of subclinical hypothyroidism in hippocampus and neocortex of the developing rat brain.

    abstract::Hypothyroidism during pregnancy and the early postnatal period has severe neurological consequences for the developing offspring. The impact of milder degrees of perturbation of the thyroid axis as encompassed in conditions of subclinical hypothyroidism and hypothyroxinemia, however, has not been established. The pres...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章

    doi:10.1111/j.1365-2826.2008.01793.x

    authors: Royland JE,Parker JS,Gilbert ME

    更新日期:2008-12-01 00:00:00

  • Prenatal stress increases the hypothalamo-pituitary-adrenal axis response in young and adult rats.

    abstract::Prenatal stress is considered as an early epigenetic factor able to induce long-lasting alterations in brain structures and functions. It is still unclear whether prenatal stress can induce long-lasting modifications in the hypothalamo-pituitary-adrenal axis. To test this possibility the effects of restraint stress in...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章

    doi:10.1111/j.1365-2826.1994.tb00591.x

    authors: Henry C,Kabbaj M,Simon H,Le Moal M,Maccari S

    更新日期:1994-06-01 00:00:00

  • Expression of vesicular glutamate transporter-2.1 in medaka terminal nerve gonadotrophin-releasing hormone neurones.

    abstract::There are three paralogous genes for gonadotrophin-releasing hormone (GnRH) peptides of vertebrates in general. GnRH1, the protein product of gnrh1 gene, is the hypophysiotrophic neuropeptide, and is a critical regulator of gonadotrophin secretion, whereas GnRH2 and GnRH3 are regarded to have neuromodulatory functions...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章

    doi:10.1111/j.1365-2826.2011.02142.x

    authors: Akazome Y,Kanda S,Oka Y

    更新日期:2011-07-01 00:00:00

  • Alterations in hypothalamic synaptophysin and death markers may be associated with vasopressin impairment in sepsis survivor rats.

    abstract::The impairment in arginine vasopressin (AVP) secretion during sepsis is described in clinical and experimental studies and has been associated with oxidative stress, apoptosis, and diminished activation of hypothalamic neurons. Few studies have, however, assessed these abnormalities in sepsis survivors. Here we perfor...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章

    doi:10.1111/jne.12604

    authors: Santos-Junior NN,Catalão CH,Costa LH,Rossignoli BB,Dos-Santos RC,Malvar D,Mecawi AS,Rocha MJ

    更新日期:2018-05-01 00:00:00

  • Regulation of galanin-like peptide gene expression by pituitary hormones and their downstream targets.

    abstract::Galanin-like peptide (GALP) mRNA is expressed in neurones of the hypothalamic arcuate nucleus and within pituicytes in the neurohypophysis. Several neuropeptides that are expressed in the arcuate nucleus participate in the neuroendocrine regulation of pituitary hormone secretion. Our objective was to determine the ext...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章

    doi:10.1111/j.1365-2826.2004.01118.x

    authors: Cunningham MJ,Krasnow SM,Gevers EF,Chen P,Thompson CK,Robinson IC,Smith MS,Clifton DK,Steiner RA

    更新日期:2004-01-01 00:00:00

  • Identification of dopamine, gonadotrophin-releasing hormone-I, and vasoactive intestinal peptide neurones activated by electrical stimulation to the medial preoptic area of the turkey hypothalamus: a potential reproductive neuroendocrine circuit.

    abstract::The neural and neurochemical substrates regulating reproduction in birds remain vaguely defined. The findings that electrical stimulation in the medial preoptic area (ES/MPOA) or intracerebroventricular infusion of dopamine (DA) stimulated luteinising hormone (LH) and prolactin (PRL) release in female turkeys, led to ...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章

    doi:10.1111/j.1365-2826.2006.01443.x

    authors: Al-Zailaie KA,Kang SW,Youngren OM,Thayananuphat A,Bakken T,Chaiseha Y,Millam JR,Proudman JA,El Halawani ME

    更新日期:2006-07-01 00:00:00

  • Variations in maternal behaviour are associated with differences in oxytocin receptor levels in the rat.

    abstract::Female Long-Evans rats exhibit stable individual differences in maternal behaviours such as pup licking/grooming and arched-back nursing posture (LG-ABN). These variations in maternal behaviour are accompanied by differences in lactation-induced increases in oxytocin receptor levels in brain regions known to mediate t...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章

    doi:10.1046/j.1365-2826.2000.00599.x

    authors: Francis DD,Champagne FC,Meaney MJ

    更新日期:2000-12-01 00:00:00

  • Region-specific changes in transient receptor potential vanilloid channel expression in the vasopressin magnocellular system in hepatic cirrhosis-induced hyponatraemia.

    abstract::The present study aimed to measure the expression of transient receptor potential (TRP) channels in the magnocellular neurones of the paraventricular (PVN) and supraoptic nucleus (SON) in an animal model of hepatic cirrhosis associated with inappropriate vasopressin (AVP) release. In these studies, we used chronic bil...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章

    doi:10.1111/j.1365-2826.2011.02273.x

    authors: Nedungadi TP,Carreño FR,Walch JD,Bathina CS,Cunningham JT

    更新日期:2012-04-01 00:00:00

  • DAMGO suppresses both excitatory and inhibitory synaptic transmission in supraoptic neurones of mouse hypothalamic slice preparations.

    abstract::Opioid effects on synaptic transmission in the mouse supraoptic nucleus (SON) were investigated using whole-cell, patch-clamp techniques. The mu-opioid receptor agonist, [D-Ala(2), N-Me-Phe(4), Gly(5)-ol]-enkephalin (DAMGO) decreased the amplitude of both evoked excitatory postsynaptic currents (eEPSCs) and inhibitory...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章

    doi:10.1111/j.0953-8194.2004.01151.x

    authors: Honda E,Ono K,Inenaga K

    更新日期:2004-03-01 00:00:00

  • Distribution of aromatase mRNA in the ram hypothalamus: an in situ hybridization study.

    abstract::The regional distribution of neurones expressing aromatase mRNA in the ram hypothalamus was examined by in situ hybridization using 33P-labelled cRNA probes. The highest amounts of hybridization signal were observed in the central part of the medial preoptic nucleus and posterior medial part of the bed nucleus of the ...

    journal_title:Journal of neuroendocrinology

    pub_type: 杂志文章

    doi:10.1046/j.1365-2826.2000.00496.x

    authors: Roselli CE,Stormshak F,Resko JA

    更新日期:2000-07-01 00:00:00