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Book: The dopaminergic system

Halász, Béla

(Basic and clinical aspects of neuroscience ; [1] ; Springer Sandoz advanced texts)

1985

Author's details	with contributions by B. Halasz
Series title	Basic and clinical aspects of neuroscience ; [1] Springer Sandoz advanced texts
Collection
Keywords	Adrenergic Fibers ; Dopamine ; Receptors, Dopamine ; Dopamin ; Neurophysiologie ; Kardiovaskuläres System
Subject	Herz-Kreislauf-System ; Cardiovasculäres System ; Hydroxytyramin ; Nervenphysiologie ; Nervensystem
Language	English
Size	VIII, 39 S. : Ill., graph. Darst.
Publisher	Springer
Publishing place	Berlin u.a.
Document type	Book
HBZ-ID	HT002217792
ISBN	3-540-13700-9 ; 0-387-13700-9 ; 978-3-540-13700-9 ; 978-0-387-13700-1
Database	Catalogue ZB MED Medicine, Health

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Article: Dr. Szabó György (1905-1982), az orvostudományok kandidátusa, szemész szakfoorvos.

Halász, Béla

Orvosi hetilap

2009 Volume 151, Issue 16, Page(s) 674–675

Title translation	Dr. György Szabó (1905-1982), PhD in medical science, senior specialist in ophthalmology.
MeSH term(s)	Faculty, Medical/history ; History, 20th Century ; Humans ; Hungary ; Journalism, Medical ; Leadership ; Ophthalmologic Surgical Procedures/history ; Ophthalmology/history
Language	Hungarian
Publishing date	2009-11-14
Publishing country	Hungary
Document type	Biography ; Historical Article ; Journal Article ; Portrait
ZDB-ID	123879-6
ISSN	1788-6120 ; 0030-6002
ISSN (online)	1788-6120
ISSN	0030-6002
DOI	10.1556/OH.2010.HO2287
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Article ; Online: Obesity induced by Borna disease virus in rats: key roles of hypothalamic fast-acting neurotransmitters and inflammatory infiltrates.

Gosztonyi, Georg / Ludwig, Hanns / Bode, Liv / Kao, Moujahed / Sell, Manfred / Petrusz, Peter / Halász, Béla

Brain structure & function

2020 Volume 225, Issue 5, Page(s) 1459–1482

Abstract: Human obesity epidemic is increasing worldwide with major adverse consequences on health. Among other possible causes, the hypothesis of an infectious contribution is worth it to be considered. Here, we report on an animal model of virus-induced obesity ... ...

Abstract	Human obesity epidemic is increasing worldwide with major adverse consequences on health. Among other possible causes, the hypothesis of an infectious contribution is worth it to be considered. Here, we report on an animal model of virus-induced obesity which might help to better understand underlying processes in human obesity. Eighty Wistar rats, between 30 and 60 days of age, were intracerebrally inoculated with Borna disease virus (BDV-1), a neurotropic negative-strand RNA virus infecting an unusually broad host spectrum including humans. Half of the rats developed fatal encephalitis, while the other half, after 3-4 months, continuously gained weight. At tripled weights, rats were sacrificed by trans-cardial fixative perfusion. Neuropathology revealed prevailing inflammatory infiltrates in the median eminence (ME), progressive degeneration of neurons of the paraventricular nucleus, the entorhinal cortex and the amygdala, and a strikingly high-grade involution of the hippocampus with hydrocephalus. Immune histology revealed that major BDV-1 antigens were preferentially present at glutamatergic receptor sites, while GABAergic areas remained free from BDV-1. Virus-induced suppression of the glutamatergic system caused GABAergic predominance. In the hypothalamus, this shifted the energy balance to the anabolic appetite-stimulating side governed by GABA, allowing for excessive fat accumulation in obese rats. Furthermore, inflammatory infiltrates in the ME and ventro-medial arcuate nucleus hindered free access of appetite-suppressing hormones leptin and insulin. The hormone transport system in hypothalamic areas outside the ME became blocked by excessively produced leptin, leading to leptin resistance. The resulting hyperleptinemic milieu combined with suppressed glutamatergic mechanisms was a characteristic feature of the found metabolic pathology. In conclusion, the study provided clear evidence that BDV-1 induced obesity in the rat model is the result of interdependent structural and functional metabolic changes. They can be explained by an immunologically induced hypothalamic microcirculation-defect, combined with a disturbance of neurotransmitter regulatory systems. The proposed mechanism may also have implications for human health. BDV-1 infection has been frequently found in depressive patients. Independently, comorbidity between depression and obesity has been reported, either. Future studies should address the exciting question of whether BDV-1 infection could be a link, whatsoever, between these two conditions.
MeSH term(s)	Animals ; Borna Disease/complications ; Borna Disease/metabolism ; Borna Disease/pathology ; Borna disease virus/physiology ; Brain/metabolism ; Brain/pathology ; Brain/virology ; Encephalitis, Viral/pathology ; Hypothalamus/metabolism ; Hypothalamus/pathology ; Hypothalamus/virology ; Neurons/metabolism ; Neurons/pathology ; Neurons/virology ; Neuropeptides/metabolism ; Obesity/metabolism ; Obesity/pathology ; Obesity/virology ; Rats, Wistar
Chemical Substances	Neuropeptides
Language	English
Publishing date	2020-05-11
Publishing country	Germany
Document type	Journal Article
ZDB-ID	2273162-3
ISSN	1863-2661 ; 1863-2653
ISSN (online)	1863-2661
ISSN	1863-2653
DOI	10.1007/s00429-020-02063-0
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Article: Joseph Meites (1913–2005)

Halász, Béla

Neuroendocrinology

2005 Volume 81, Issue 2, Page(s) I–II

Language	English
Publishing date	2005-07-06
Publisher	S. Karger AG
Publishing place	Basel, Switzerland
Document type	Article
Note	Obituary
ZDB-ID	123303-8
ISSN	1423-0194 ; 0028-3835
ISSN (online)	1423-0194
ISSN	0028-3835
DOI	10.1159/000086005
Database	Karger publisher's database

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Article ; Online: Demonstration of estrogen receptor α protein in glutamatergic (vesicular glutamate transporter 2 immunoreactive) neurons of the female rat hypothalamus and amygdala using double-label immunocytochemistry.

Kiss, József / Csaba, Zsolt / Csáki, Agnes / Halász, Béla

Experimental brain research

2013 Volume 226, Issue 4, Page(s) 595–602

Abstract: By means of double-label immunocytochemistry, authors studied the presence of estrogen receptor α (ER-α) protein in vesicular glutamate transporter 2 (VGluT2) protein-immunoreactive neurons in the female rat hypothalamus and amygdala. They examined ... ...

Abstract	By means of double-label immunocytochemistry, authors studied the presence of estrogen receptor α (ER-α) protein in vesicular glutamate transporter 2 (VGluT2) protein-immunoreactive neurons in the female rat hypothalamus and amygdala. They examined colocalization of the 2 immunoreactive proteins in structures in which they found a significant overlap in the localization of the distribution of ER-α- and VGluT2-immunopositive nerve cells, namely in the medial preoptic area, the ventral subdivision of the ventromedial hypothalamic nucleus, and the medial amygdaloid nucleus. In the medial preoptic area, only 2.74 % of ER-α-immunoreactive neurons were VGluT2 positive, and conversely, 5 % of VGluT2-immunoreactive neurons contained ER-α immunofluorescent labeling. Highest degree of colocalization was detected in the ventral subdivision of the ventromedial hypothalamic nucleus, where 22.81 % of the ER-α-immunopositive neurons were VGluT2 immunoreactive and 37.14 % of the VGluT2-immunolabeled neurons contained ER-α-positive nucleus. In the medial amygdaloid nucleus, 15.38 % of the ER-α and 18.1 % of the VGluT2-immunoreactive neurons were double labeled. The colocalizations suggest that glutamatergic (VGluT2 protein immunoreactive) neurons are involved in the mediation of the action of estrogen on the rat brain.
MeSH term(s)	Amygdala/cytology ; Amygdala/metabolism ; Animals ; Estrogen Receptor alpha/metabolism ; Female ; Hypothalamus/cytology ; Hypothalamus/metabolism ; Immunohistochemistry ; Microscopy, Confocal ; Neurons/metabolism ; Rats ; Rats, Sprague-Dawley ; Vesicular Glutamate Transport Protein 2/metabolism
Chemical Substances	Estrogen Receptor alpha ; Slc17a6 protein, rat ; Vesicular Glutamate Transport Protein 2
Language	English
Publishing date	2013-03-30
Publishing country	Germany
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	1201-4
ISSN	1432-1106 ; 0014-4819
ISSN (online)	1432-1106
ISSN	0014-4819
DOI	10.1007/s00221-013-3474-8
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Article: Béla Flerkó

Halász, Béla

Neuroendocrinology

2003 Volume 77, Issue 6, Page(s) 353

Language	English
Publishing date	2003-07-08
Publisher	S. Karger AG
Publishing place	Basel, Switzerland
Document type	Article
Note	Obituary
ZDB-ID	123303-8
ISSN	1423-0194 ; 0028-3835
ISSN (online)	1423-0194
ISSN	0028-3835
DOI	10.1159/000072102
Database	Karger publisher's database

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Book: Flash 8

Dyadio, Christian / Halasz, Bela

Webseiten mit Pfiff!

(Easy - leicht, klar, sofort)

2006

Author's details	Christian Dyadio; Bela Halasz
Series title	Easy - leicht, klar, sofort
Keywords	Flash 8
Language	German
Size	336 S, Ill., graph. Darst., 240 mm x 168 mm
Publisher	Markt + Technik-Verl
Publishing place	München
Document type	Book
ISBN	3827240409 ; 9783827240408
Database	Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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Article ; Online: Glutamate receptor antagonist infused into the hypothalamic suprachiasmatic nuclei interferes with the diurnal fluctuations in plasma prolactin and corticosterone levels and injected into the mesencephalic dorsal raphe nucleus attenuates the suckling stimulus-induced release of prolactin of the rat.

Bodnár, Ibolya / Bánky, Zsuzsanna / Zelena, Dóra / Halász, Béla

Brain research bulletin

2009 Volume 80, Issue 1-2, Page(s) 9–16

Abstract: The aim of the present investigations was to examine the involvement of the rich glutamatergic innervation of the hypothalamic suprachiasmatic nucleus, a key structure in the control of circadian rhythms, in the regulation of the diurnal fluctuations in ... ...

Abstract	The aim of the present investigations was to examine the involvement of the rich glutamatergic innervation of the hypothalamic suprachiasmatic nucleus, a key structure in the control of circadian rhythms, in the regulation of the diurnal fluctuations in plasma prolactin and corticosterone, and to test the involvement of the glutamatergic innervation of the mesencephalic dorsal raphe nucleus in the prolactin response induced by the suckling stimulus. By means of a mini-pump a non-NMDA receptor antagonist (6-cyano-7- nitroquinoxaline-2,3-dione disodium, CNQX) was microinfused between the two suprachiasmatic nuclei for 3 days and on the third day blood samples were taken at different time points of the day. CNQX inhibited the afternoon rise in plasma prolactin and corticosterone. In lactating rats CNQX, similarly to the NMDA antagonist MK-801, microinjected into the dorsal raphe nucleus significantly attenuated the prolactin response to the suckling stimulus. The findings indicate that the glutamatergic innervation of the suprachiasmatic nuclei is involved in the diurnal fluctuations in plasma prolactin and corticosterone levels, and the glutamatergic innervation of the dorsal raphe nucleus has a prominent role in the mediation of the suckling stimulus to the hypothalamus.
MeSH term(s)	6-Cyano-7-nitroquinoxaline-2,3-dione/pharmacology ; Animals ; Animals, Suckling/physiology ; Biological Clocks/drug effects ; Biological Clocks/physiology ; Circadian Rhythm/drug effects ; Circadian Rhythm/physiology ; Corticosterone/blood ; Dizocilpine Maleate/pharmacology ; Excitatory Amino Acid Antagonists/pharmacology ; Female ; Glutamic Acid/metabolism ; Lactation/physiology ; Male ; Prolactin/blood ; Prolactin/secretion ; Raphe Nuclei/drug effects ; Raphe Nuclei/metabolism ; Rats ; Rats, Wistar ; Receptors, Glutamate/metabolism ; Suprachiasmatic Nucleus/drug effects ; Suprachiasmatic Nucleus/metabolism
Chemical Substances	Excitatory Amino Acid Antagonists ; Receptors, Glutamate ; Glutamic Acid (3KX376GY7L) ; Dizocilpine Maleate (6LR8C1B66Q) ; 6-Cyano-7-nitroquinoxaline-2,3-dione (6OTE87SCCW) ; Prolactin (9002-62-4) ; Corticosterone (W980KJ009P)
Language	English
Publishing date	2009-08-28
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	197620-5
ISSN	1873-2747 ; 0361-9230
ISSN (online)	1873-2747
ISSN	0361-9230
DOI	10.1016/j.brainresbull.2009.06.005
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Article ; Online: Synaptic contacts of vesicular glutamate transporter 2 fibres on chemically identified neurons of the hypothalamic suprachiasmatic nucleus of the rat.

Kiss, József / Csáki, Agnes / Csaba, Zsolt / Halász, Béla

The European journal of neuroscience

2008 Volume 28, Issue 9, Page(s) 1760–1774

Abstract: The hypothalamic suprachiasmatic nucleus (SCN), which plays a pivotal role in the control of circadian rhythms, consists of several neuronal subpopulations characterized by different neuroactive substances. This prominent cell group has a fairly rich ... ...

Abstract	The hypothalamic suprachiasmatic nucleus (SCN), which plays a pivotal role in the control of circadian rhythms, consists of several neuronal subpopulations characterized by different neuroactive substances. This prominent cell group has a fairly rich glutamatergic innervation, but the cell types that are targeted by this innervation are unknown. Therefore, the purpose of the present study was to examine the relationship between the afferent glutamatergic axon terminals and the vasoactive intestinal polypeptide (VIP)-, arginine-vasopressin (AVP)- and gamma-aminobutyric acid (GABA)-positive neurons of the SCN. Glutamatergic elements were revealed via immunocytochemical double-labelling for vesicular glutamate transporter type 1 (VGluT1) and type 2 (VGluT2), and brain sections were imaged via confocal laser-scanning microscopy and electron microscopy. Numerous VGluT2-immunoreactive axons were observed to be in synaptic contact with VIP- and GABA-positive neurons, and only a few synapses were detected between VGluT2 boutons and AVP neurons. VGluT1 axon terminals exhibiting very moderate distribution in this cell group were observed to be in synaptic contact with chemically unidentified neurons. The findings provide the first morphological data on the termination of presumed glutamatergic fibres on chemically identified neurons of the rat SCN, and indicate that all three prominent cell types of the cell group receive glutamatergic afferents.
MeSH term(s)	Animals ; Arginine Vasopressin/metabolism ; Glutamic Acid/metabolism ; Male ; Microscopy, Confocal ; Microscopy, Immunoelectron ; Neurons/classification ; Neurons/metabolism ; Neurons/ultrastructure ; Presynaptic Terminals/metabolism ; Presynaptic Terminals/ultrastructure ; Rats ; Rats, Wistar ; Suprachiasmatic Nucleus/metabolism ; Suprachiasmatic Nucleus/ultrastructure ; Synapses/metabolism ; Synapses/ultrastructure ; Synaptic Transmission/physiology ; Vasoactive Intestinal Peptide/metabolism ; Vesicular Glutamate Transport Protein 1/metabolism ; Vesicular Glutamate Transport Protein 2/metabolism ; gamma-Aminobutyric Acid/metabolism
Chemical Substances	Slc17a6 protein, rat ; Slc17a7 protein, rat ; Vesicular Glutamate Transport Protein 1 ; Vesicular Glutamate Transport Protein 2 ; Arginine Vasopressin (113-79-1) ; Vasoactive Intestinal Peptide (37221-79-7) ; Glutamic Acid (3KX376GY7L) ; gamma-Aminobutyric Acid (56-12-2)
Language	English
Publishing date	2008-11
Publishing country	France
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	645180-9
ISSN	1460-9568 ; 0953-816X
ISSN (online)	1460-9568
ISSN	0953-816X
DOI	10.1111/j.1460-9568.2008.06463.x
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Article: Synaptic connections of glutamatergic nerve fibres in the rat suprachiasmatic nucleus.

Kiss, József / Csáki, Agnes / Csaba, Zsolt / Halász, Béla

Ideggyogyaszati szemle

2007 Volume 60, Issue 3-4, Page(s) 166–168

Abstract: Background and purpose: The hypothalamic suprachiasmatic nucleus functioning as the principal circadian pacemaker in mammals, has a rich glutamatergic innervation. Nothing is known about the terminations of the glutamatergic fibres. The aim of the ... ...

Abstract	Background and purpose: The hypothalamic suprachiasmatic nucleus functioning as the principal circadian pacemaker in mammals, has a rich glutamatergic innervation. Nothing is known about the terminations of the glutamatergic fibres. The aim of the present investigations was to study the relationship between glutamatergic axon terminals and vasoactive intestinal polypeptide (VIP), GABA and arginine-vasopressin (AVP) neurons in the cell group. Methods: Double label immunocytochemistry was used and the brain sections were examined under the electron microscope. Vesicular glutamate transporter type 2 was applied as marker of the glutamatergic elements. Results - Glutamatergic fibers were detected in synaptic contact with GABAergic, VIP- and AVP-positive neurons forming asymmetric type of synapses. Conclusion: The findings are the first data on the synaptic contacts of glutamatergic axon terminals with neurochemically identified neurons in the suprachiasmatic nucleus.
MeSH term(s)	Animals ; Arginine/metabolism ; Axons/physiology ; Biomarkers/analysis ; Circadian Rhythm ; Glutamic Acid/metabolism ; Immunohistochemistry/methods ; Microscopy, Electron ; Nerve Fibers/metabolism ; Nerve Fibers/physiology ; Rats ; Suprachiasmatic Nucleus/metabolism ; Suprachiasmatic Nucleus/physiology ; Synapses/physiology ; Vasoactive Intestinal Peptide/metabolism ; Vasopressins/metabolism ; Vesicular Glutamate Transport Protein 2/analysis ; gamma-Aminobutyric Acid/metabolism
Chemical Substances	Biomarkers ; Vesicular Glutamate Transport Protein 2 ; Vasopressins (11000-17-2) ; Vasoactive Intestinal Peptide (37221-79-7) ; Glutamic Acid (3KX376GY7L) ; gamma-Aminobutyric Acid (56-12-2) ; Arginine (94ZLA3W45F)
Language	English
Publishing date	2007-03-30
Publishing country	Hungary
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2240317-6
ISSN	0019-1442
ISSN	0019-1442
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