The extracellular calcium-sensing receptor increases the number of calcium steps and action currents in pituitary melanotrope cells.

Abstract:

:Secretion of alpha-melanophore-stimulating hormone (alpha-MSH) from the neuroendocrine melanotrope cells in the intermediate lobe of the pituitary gland of the clawed frog Xenopus laevis is regulated by various inhibitory, stimulatory and autocrine factors. The neuropeptide sauvagine stimulates alpha-MSH secretion by changing the pattern of intracellular Ca2+ oscillations and the electrical properties of the cell membrane. In the present study we investigated whether another secreto-stimulator, the extracellular Ca2+-sensing receptor (CaR), also affects the Ca2+ oscillatory pattern and electrical membrane properties. Using high-speed dynamic video-imaging we show that activation of the CaR with the specific agonist l-phenylalanine (l-Phe) changes the Ca2+ oscillatory pattern by increasing the number of Ca2+ steps, which are the "building blocks" of the oscillations. Moreover, using patch-clamp electrophysiology it is demonstrated that l-Phe affects membrane properties by increasing frequency and duration of action currents. Compared to sauvagine, the CaR has different effects on the action current parameters, suggesting that multiple mechanisms regulate the electrical properties of the melanotrope cell membrane and, thereby, the Ca2+ oscillation-dependent level of alpha-MSH secretion.

journal_name

Neurosci Lett

journal_title

Neuroscience letters

authors

van den Hurk MJ,Jenks BG,Roubos EW,Scheenen WJ

doi

10.1016/j.neulet.2004.11.084

keywords:

subject

Has Abstract

pub_date

2005-03-29 00:00:00

pages

125-9

issue

2

eissn

0304-3940

issn

1872-7972

pii

S0304-3940(04)01496-X

journal_volume

377

pub_type

杂志文章
  • Hydroxy-safflor yellow A inhibits neuroinflammation mediated by Aβ₁₋₄₂ in BV-2 cells.

    abstract::Inflammation is an important contributor to the development of Alzheimer's disease (AD). Anti-inflammatory medication may offer promising treatment for AD. Hydroxy-safflor yellow A (HSYA), a chemical component of the safflower yellow pigments, has been reported to exert potent immunosuppressive effects. This study exa...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/j.neulet.2014.01.005

    authors: Zhang Z,Wu Z,Zhu X,Hui X,Pan J,Xu Y

    更新日期:2014-03-06 00:00:00

  • Comparative study of the neuronal populations containing beta-endorphin, corticotropin and dopamine in the arcuate nucleus of the rat hypothalamus.

    abstract::Neurons simultaneously immunoreactive with anti-beta-endorphin and anti-(17-39) corticotropin (anti(17-39) ACTH) have been detected in the arcuate and ventromedial nuclei of the hypothalamus of colchicine-treated rats. These neurons are different from those fluorescent with the Falck and Hillarp technique. These resul...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/0304-3940(79)95341-2

    authors: Bugnon C,Bloch B,Lenys D,Gouget A,Fellmann D

    更新日期:1979-09-01 00:00:00

  • Effects of glucose concentration on redox status in rat primary cortical neurons under hypoxia.

    abstract::Reduced supply of glucose involves in many pathological conditions such as stroke and contributes to ischemic injuries. In contrast, hyperglycemia has also been regarded as an important factor in causing and exaggerating stroke damage. Although the molecular mechanism(s) of imbalanced glucose-induced cellular injuries...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/j.neulet.2006.09.066

    authors: Shi H,Liu KJ

    更新日期:2006-12-13 00:00:00

  • Validation of a pictorial rating scale for grip strength evaluation in 3- to 6-year-old children.

    abstract::The present study aimed to validate a pictorial rating scale to evaluate the child's ability to produce grip forces. Thirty-seven children aged 3 to 6 years participated as subjects in this investigation. We used a tailor-made pictorial scale and a hand grip strength meter, as well as a Piaget's clinical interview aim...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/j.neulet.2007.04.066

    authors: Defrasne Ait-Said E,Groslambert A,Courty D

    更新日期:2007-06-13 00:00:00

  • Expression of the prion protein in the rat forebrain--an immunohistochemical study.

    abstract::The cellular prion protein (PrP(C)) is crucial for the development of transmissible spongiform encephalopathies (TSEs), where the pathogenic scrapie isoform (PrP(Sc)) of the same protein, is considered to be the principal or sole infectious agent. Here, we report findings on PrP(C) expression in the rat forebrain, usi...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/s0304-3940(99)00563-7

    authors: Verghese-Nikolakaki S,Michaloudi H,Polymenidou M,Groschup MH,Papadopoulos GC,Sklaviadis T

    更新日期:1999-09-03 00:00:00

  • Up-regulation of Hrk, a regulator of cell death, in retinal ganglion cells of axotomized rat retina.

    abstract::Hrk, a regulator of cell death, belongs to the family of pro-apoptotic BH3-only proteins and is known to induce apoptosis in nerve tissue. We examined Hrk gene expression to clarify the role of BH3-only proteins in apoptosis of retinal ganglion cells (RGCs) after optic nerve transection in the adult rat. Reverse trans...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/s0304-3940(01)02487-9

    authors: Wakabayashi T,Kosaka J,Hommura S

    更新日期:2002-01-25 00:00:00

  • Different pattern of association of paraoxonase Gln192-->Arg polymorphism with sporadic late-onset Alzheimer's disease and coronary artery disease.

    abstract::The paraoxonase (PON1) Gln192-->Arg polymorphism was examined in a group of sporadic late-onset Alzheimer's disease (AD) patients, in a group of coronary artery disease (CAD) patients, and in normal subjects. The AD sample showed a PON1*R allele frequency significantly lower than the control group (0.225 vs. 0.281, P=...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/s0304-3940(02)01437-4

    authors: Scacchi R,Gambina G,Martini MC,Broggio E,Vilardo T,Corbo RM

    更新日期:2003-03-13 00:00:00

  • Differential effects of the aging process on the morphology of the hypothalamic ventromedial nucleus of male and female rats.

    abstract::We investigated the effects of aging on the neuroanatomical sex dimorphisms of the rat hypothalamic ventromedial nucleus (VMN). Stereological methods were used to estimate the volume of the VMN and the total number and size of its neurons, including their dendritic trees, in males and females aged 6 and 24 months. No ...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/s0304-3940(01)02294-7

    authors: Madeira MD,Ferreira-Silva L,Ruela C,Paula-Barbosa MM

    更新日期:2001-11-13 00:00:00

  • Improvement of autophagy dysfunction as a potential mechanism for environmental enrichment to protect blood-brain barrier in rats with vascular cognitive impairment.

    abstract::Vascular cognitive impairment (VCI) is the second most common cause of dementia after Alzheimer's disease, and the cognitive impairment is one of the common effects of VCI. Unfortunately, it lacks effective therapeutic treatments at present. In our previous study, environmental enrichment (EE), as an early interventio...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/j.neulet.2020.135437

    authors: Xu L,Qu C,Qu C,Shen J,Song H,Li Y,Li T,Zheng J,Zhang J

    更新日期:2020-11-20 00:00:00

  • Inhibition of nitric oxide synthase influences the activity of striatal neurons in the rat.

    abstract::The activity of single units in the striatum of urethane-anesthetized rats was recorded before and after the systemic administration of 7-nitro-indazole (7-NI; 50 mg/kg intraperitoneally), a selective inhibitor of neuronal nitric oxide (NO) synthase. Two neuronal types were clearly distinguishable electrophysiological...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/s0304-3940(02)00270-7

    authors: Sardo P,Ferraro G,Di Giovanni G,Galati S,La Grutta V

    更新日期:2002-06-14 00:00:00

  • Enhancement of conflict processing activity in human brain under task relevant condition.

    abstract::To investigate the working mechanism of the conflict processing system, pairs of colored numbers were sequentially presented on a screen to subjects. They were asked to determine if the magnitude or the color of the two numbers was identical. Event-related potentials (ERPs) were recorded at the same time. A negative p...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/s0304-3940(00)01757-2

    authors: Wang H,Wang Y,Kong J,Cui L,Tian S

    更新日期:2001-02-09 00:00:00

  • Sodium homeostasis in rat hippocampal slices during oxygen and glucose deprivation: role of voltage-sensitive sodium channels.

    abstract::The breakdown in brain ionic homeostasis during energy deprivation (anoxic depolarization [AD]) is intimately linked to neuronal injury. We studied the role of one particular route of Na+ influx, voltage-sensitive Na+ channels, in the AD induced by O2 and/or glucose deprivation. We recorded extracellular Na+ concentra...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/s0304-3940(99)00728-4

    authors: Fung ML,Croning MD,Haddad GG

    更新日期:1999-11-05 00:00:00

  • Mutant p53 may selectively suppress glial specific proteins in pluripotential human neuroectodermal tumor cells.

    abstract::The p53 gene is mutated in pluripotential human neuroectodermal tumor DAOY cells which express both glial and neuronal markers. In most cells, nuclear m-p53 immunostaining was intense while cytoplasmic glial specific proteins (GSPs) were present at low levels. Conversely, glial fibrillary acidic protein (GFAP) and glu...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/s0304-3940(98)00061-5

    authors: U HS,Banaie A,Rigby L,Chen J

    更新日期:1998-03-06 00:00:00

  • Rewarding and reinforcing effects of 4-chloro-2,5-dimethoxyamphetamine and AH-7921 in rodents.

    abstract::New psychoactive substances (NPSs), i.e., newly designed substances with chemical residues that are slightly different from those of known psychoactive substances, have been emerging since the late 2000s, and social problems related to the use of these substances are increasing globally. Two such NPSs are 4-chloro-2,5...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/j.neulet.2018.04.009

    authors: Cha HJ,Jeon SY,Jang HJ,Shin J,Kim YH,Suh SK

    更新日期:2018-05-29 00:00:00

  • Effects of unilateral lesion of the nucleus basalis magnocellularis on carbachol- and serotonin-stimulated [3H]inositolmonophosphate accumulation in rat fronto-parietal cortex.

    abstract::We examined the effects of ibotenic acid induced unilateral lesion of the nucleus basalis magnocellularis (nBM) on carbachol- and serotonin-stimulated phosphoinositide (PI) breakdown in miniprisms obtained from rat fronto-parietal cortex 1 week following the lesion. Lesion-side muscarinic and serotoninergic receptor r...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/0304-3940(95)11658-j

    authors: Erfurth A,Holmes TC

    更新日期:1995-06-23 00:00:00

  • Differential effects of butyrate and dibutyryl cAMP on mRNA levels of muscarinic acetylcholine receptor subtypes expressed in neurohybrid cell lines.

    abstract::NCB-20 cells expressed m1- and m4-muscarinic acetylcholine receptor (mAChR) mRNAs, while NG108-15 cells expressed only m4-mAChR mRNA. Butyrate induced a time-dependent increase in the level of m1-mAChR mRNA with no change in the m4-mAChR mRNA level in NCB-20 cells. Similarly, butyrate did not affect the m4-mAChR mRNA ...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/0304-3940(96)12779-8

    authors: Fukamauchi F,Mataga N,Wang YJ,Chuang DM

    更新日期:1996-07-05 00:00:00

  • Behavioral evidence of thermal hyperalgesia and mechanical allodynia induced by intradermal cinnamaldehyde in rats.

    abstract::TRPA1 agonists cinnamaldehyde (CA) and mustard oil (allyl isothiocyanate=AITC) induce heat hyperalgesia and mechanical allodynia in human skin, and sensitize responses of spinal and trigeminal dorsal horn neurons to noxious skin heating in rats. TRPA1 is also implicated in cold nociception. We presently used behaviora...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/j.neulet.2010.02.056

    authors: Tsagareli MG,Tsiklauri N,Zanotto KL,Carstens MI,Klein AH,Sawyer CM,Gurtskaia G,Abzianidze E,Carstens E

    更新日期:2010-04-12 00:00:00

  • The human immunodeficiency virus type 1 (HIV-1) glycoprotein gp120 reduces the expression of neuronal nitric oxide synthase in the hippocampus but not in the cerebral cortex and medial septal nucleus of rat.

    abstract::The expression of neuronal type of nitric oxide synthase (nNOS) has been studied by immunocytochemistry in the brain of rats receiving a single daily (for up to 14 consecutive days) intracerebroventricular (i.c.v.) injection of the HIV-1 recombinant protein gp 120 (100 ng/day). This treatment failed to affect nNOS exp...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/s0304-3940(97)13463-2

    authors: Bagetta G,Corasaniti MT,Costa N,Berliocchi L,Finazzi-Agrò A,Nisticò G

    更新日期:1997-03-14 00:00:00

  • Effect of strychnine on cardiac vagal inhibition.

    abstract::Strychnine blocked the vagal-induced cardiac inhibition in both perfused frog heart and dog's heart in situ. This effect was antagonized by eserine. The present results are consistent with our previous findings that strychnine blocks the cholinergic inhibitory mechanisms both in the central nervous system as well as i...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/0304-3940(77)90153-7

    authors: Bhargava VK,Bhargava P,Tripathi KD

    更新日期:1977-02-01 00:00:00

  • Two types of rhythm in the respiratory network output in the isolated ventrolateral medulla in the neonatal rats.

    abstract::Effects of substance P and extracellular [K(+)](o) on respiratory motor activity in the ventrolateral medulla in neonatal rat (0-4 days old) brainstem-spinal cord preparation were studied. In addition to fictive eupneic rhythm (8-13 bursts/minute), the respiratory motor output was composed of biphasic bursts which mig...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/s0304-3940(03)00645-1

    authors: Shvarev YN,Lagercrantz H,Yamamoto Y

    更新日期:2003-08-14 00:00:00

  • Presence of the pineal hormone melatonin in rat cochlea: its variations with lighting conditions.

    abstract::Within the normal inner ear, there are elements that belong to the immune system. Different inner ear disorders can be explained by autoimmune mechanisms, affecting both humoral and cellular immunity. Melatonin, the principal hormone of the pineal gland, modulates the immune system and extensively participates in the ...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/s0304-3940(97)00844-6

    authors: Lopez-Gonzalez MA,Guerrero JM,Delgado F

    更新日期:1997-11-28 00:00:00

  • Reduced synaptic vesicle density and active zone size in mice lacking amyloid precursor protein (APP) and APP-like protein 2.

    abstract::Although abnormal processing of amyloid precursor protein (APP) leads to early onset of Alzheimer's disease, the normal function of this protein is poorly understood. APP is widely expressed in axons, dendrites, and synapses in both central and peripheral nervous systems. Mice homozygous for APP or its homologue APP-l...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/j.neulet.2005.04.040

    authors: Yang G,Gong YD,Gong K,Jiang WL,Kwon E,Wang P,Zheng H,Zhang XF,Gan WB,Zhao NM

    更新日期:2005-08-12 00:00:00

  • Down regulation of TRPC1 by shRNA reduces mechanosensitivity in mouse dorsal root ganglion neurons in vitro.

    abstract::Mechanosensitivity is a crucial but poorly understood property of the sensory nervous system. Transient receptor potential (TRP) channels, which have been found to be responsible for the detection of other sensory stimuli such as temperature and pungent chemicals, have been suggested to also recognize stretch or press...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/j.neulet.2009.03.082

    authors: Staaf S,Maxvall I,Lind U,Husmark J,Mattsson JP,Ernfors P,Pierrou S

    更新日期:2009-06-19 00:00:00

  • Immunocytochemical localization of endopeptidase-24.11 in the nucleus tractus solitarius of the rat brain.

    abstract::Recently, it has been hypothesized that the N-terminal portion of substance P (SP), SP(1-7), which results from the action of endopeptidase 24.11 (EC3.4.24.11), could be involved in mediating the depressor effects of baroreceptor afferent activation via its action on cells in the nucleus tractus solitarius (NTS). In t...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/0304-3940(90)90117-r

    authors: Lasher RS,Lutz EM,Mulholland F,Sanderson R,Stewart JM,Bublitz C

    更新日期:1990-09-04 00:00:00

  • A property of face representation at the categorical level.

    abstract::Face processing is unique to human beings and is likely to have special neuronal properties. We studied one of these properties, categorical representation of the face in perception processing (perception) and in memory recall processing (imagery), using the face and building stimuli. The same building-selective areas...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/j.neulet.2008.09.053

    authors: Sung YW,Ogawa S

    更新日期:2008-12-19 00:00:00

  • Release of proteins during long-term potentiation in the hippocampus of the anaesthetized rat.

    abstract::Using a push-pull device, the release of endogenous proteins in the extracellular space was investigated in the CA1 region of the hippocampus of anaesthetized rats. With low-frequency stimulation of the Schaffer collaterals, there was a relatively stable release of 5 proteins (64, 54, 48, 45 and 16 kDa). A train of hi...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/0304-3940(88)90698-2

    authors: Charriaut-Marlangue C,Aniksztejn L,Roisin MP,Ben-Ari Y

    更新日期:1988-09-12 00:00:00

  • Distinguishing visuospatial working memory and complex mental calculation areas within the parietal lobes.

    abstract::The present study was aimed at differentiate, within the parietal cortex, the areas underlying visuospatial working memory/attentionnal processes and those devoted to arithmetic processing. We compared, using positron emission tomography, the cerebral networks activated in two groups of subjects, one solving two-by-tw...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/s0304-3940(02)00833-9

    authors: Zago L,Tzourio-Mazoyer N

    更新日期:2002-10-04 00:00:00

  • Lamellated receptors in the skin of the hagfish, Myxine glutinosa.

    abstract::The adult hagfish, Myxine glutinosa, does not exhibit a lateral line system. The hypodermal layer of the dorsal head and body skin contains a prominent receptor system--lamellated corpuscles--arranged in a segmental pattern close to the body fascia. The topography and the structural organization of the lamellated rece...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/0304-3940(93)90049-q

    authors: Andres KH,von Düring M

    更新日期:1993-03-05 00:00:00

  • GABAergic modulation of striatal peptide expression in rats and the alterations induced by dopamine antagonist treatment.

    abstract::GABAergic modulation of enkephalin, substance P and glutamic acid decarboxylase (GAD67) gene expression and the alterations induced by dopamine receptor blockade were studied in the rat striatum. Following subchronic treatment with the GABA-A agonist muscimol, the GABA-B agonist baclofen or the GABA transaminase inhib...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/0304-3940(94)90537-1

    authors: Jolkkonen J,Jenner P,Marsden CD

    更新日期:1994-10-24 00:00:00

  • Interamygdaloid connections in the rat studied by the horseradish peroxidase method.

    abstract::Neurons of the rat amygdaloid body were labeled with horseradish peroxidase following its injection into contralateral nuclei of the amygdala. The results strongly suggest that there is a contralateral amygdaloid projection from the basal (dorsal and ventral) nuclei of amygdala; it terminates in the medial, central an...

    journal_title:Neuroscience letters

    pub_type: 杂志文章

    doi:10.1016/0304-3940(81)90416-x

    authors: Nitecka L,Amerski L,Narkiewicz O

    更新日期:1981-10-01 00:00:00