Abstract：
:The abuse of pharmaceutical drugs and the inadequate ingestion of nutrients constitute external factors that can alter brain development, both individually and in combination. We used cortical spreading depression (CSD) as a neurophysiological parameter to investigate the combined effects of the antipyretic/analgesic/anti-inflammatory drug dipyrone and malnutrition (M) in the developing rat brain. Suckling malnourished rats (M; n=69) and well nourished controls (W; n=76) received dipyrone (300 mg/kg/day) or saline per gavage for 7 consecutive days during the 2nd, 3rd, or 4th postnatal week. At 35-45 days, CSD was recorded at 2 points in the parietal region. In both groups, dipyrone increased CSD propagation velocities compared to respective saline controls (P<0.05). This effect was intensified when dipyrone application during the 4th postnatal week intensified the increase compared to the 2nd and 3rd weeks. In saline-treated groups, the velocities (mean+/-s.d., in mm/min) were 3.70+/-0.11, 3.77+/-0.16, and 3.78+/-0.13 (W) and 4.13+/-0.10, 4.16+/-0.10, and 4.14+/-0.09 (M), for animals treated in the 2nd, 3rd and 4th postnatal weeks. In dipyrone-treated groups, the respective values were 3.99+/-0.14, 4.03+/-0.16, and 4.30+/-0.19 (W) and 4.47+/-0.17, 4.70+/-0.31, and 5.01+/-0.28 (M). Results support the hypothesis that dipyrone has a CSD-facilitating effect, which is more intense at a late brain developmental stage and is facilitated by malnutrition. This may help explain the developmental brain excitability changes that are associated with pharmacological and nutritional factors.
journal_name
Exp Neuroljournal_title
Experimental neurologyauthors
do Amaral AP,Barbosa MS,de Souza VC,Ramos IL,Guedes RCdoi
10.1016/j.expneurol.2009.06.017subject
Has Abstractpub_date
2009-10-01 00:00:00pages
492-8issue
2eissn
0014-4886issn
1090-2430pii
S0014-4886(09)00265-9journal_volume
219pub_type
杂志文章abstract：:Bilateral lesions of the ventromedial nucleus of the hypothalamus (VMN) significantly attentuated lordosis behavior in the female rat. The degree of this deficit was significantly correlated with the amount of damage to the VMN. There was no improvement in lordosis performance even after an extended recovery period. ...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(83)90035-3
更新日期：1983-03-01 00:00:00
abstract：:Systemic administration of kainic acid (12 mg/kg, i.p.), causing the established epileptic syndrome and the associated specific pattern of limbic nerve cell loss, led to substantial time-dependent increases in the brain metabolism of the endogenous excitotoxin, quinolinic acid. These changes preferentially affected bi...
journal_title：Experimental neurology
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doi：10.1016/0014-4886(88)90140-9
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journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1997.6673
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abstract：:Traumatic brain injury (TBI) in animals and man generates widespread axonal injury characterized by focal axolemmal permeability changes, induction of calpain-mediated proteolysis, and neurofilament side-arm modification associated with neurofilament compaction (NFC) evolving to axonal disconnection. Recent observatio...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1999.7139
更新日期：1999-09-01 00:00:00
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journal_title：Experimental neurology
pub_type： 杂志文章,评审
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更新日期：2014-12-01 00:00:00
abstract：:Nitrosative stress contributes to nerve conduction slowing, thermal hypoalgesia, and impaired nitrergic innervation in animal models of Type 1 diabetes. The role for reactive nitrogen species in Type 2 diabetes-associated neuropathy remains unexplored. This study evaluated the role for nitrosative stress in functional...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2007.03.019
更新日期：2007-06-01 00:00:00
abstract：:Huntington's disease is an autosomal dominant neurogenetic disorder leading to striatal atrophy, characterized by involuntary movements. Voluntary movements also deteriorate, but the neurophysiological mechanisms are less understood. We investigated voluntary movement execution and its neural correlates by means of mo...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2008.11.018
更新日期：2009-03-01 00:00:00
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journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2006.04.031
更新日期：2006-10-01 00:00:00
abstract：:Hippocampal transplants were examined for the expression of three specific immediate early gene encoded proteins in order to establish if grafted immature tissue maintains the basic molecular program necessary for gene transcription after grafting to excitotoxic (ibotenic acid-induced) lesions in adult host rat brains...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1995.1097
更新日期：1995-12-01 00:00:00
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journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2020.113373
更新日期：2020-09-01 00:00:00
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journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(87)90290-1
更新日期：1987-07-01 00:00:00
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journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2016.06.011
更新日期：2016-09-01 00:00:00
abstract：:Altered activity in one of the output nuclei of the basal ganglia, the internal segment of the globus pallidus, is known to play an important role in the generation of parkinsonism. These inactivation studies tested the hypothesis that altered activity in the second major output nucleus of the basal ganglia, the subst...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.2000.7572
更新日期：2001-02-01 00:00:00
abstract：:Systemic administration of the amphetamine derivative p-chloroamphetamine (PCA) causes degeneration of 5-HT axon terminals in rat brain. The present study was designed to determine whether PCA induces neurotoxic effects by a direct action on 5-HT axon terminals. PCA was administered by microinjection directly into the...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/s0014-4886(05)80015-9
更新日期：1990-09-01 00:00:00
abstract：:Reactive synaptogenesis and terminal proliferation are known to occur in the dentate gyrus of the rat hippocampus following removal of specific afferents. In the present study we have examined the relation of synaptophysin immunoreactivity to the immunohistochemical staining pattern of GAP-43, a putative marker of neu...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(91)90169-d
更新日期：1991-08-01 00:00:00
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journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2011.04.016
更新日期：2011-08-01 00:00:00
abstract：:Laser Doppler flowmetry was utilized to examine blood flow in sciatic nerves of barbiturate-anesthetized and of unanesthetized decerebrate rats, in response to hypotension induced by graded exsanguination or by graded clamping of the descending aorta. Continuous laser Doppler flowmetry signals decreased linearly with ...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(85)90047-0
更新日期：1985-10-01 00:00:00
abstract：:Infant, juvenile, and adult brain growth is modulated by corticosterone. This study was designed to determine whether such modulation is confined to certain specific brain areas, and if the pattern of growth revealed is consistent across strains of rats. Young female Sprague-Dawley-derived rats were either adrenalecto...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(88)90229-4
更新日期：1988-12-01 00:00:00
abstract：:Traumatic axonal injury (TAI) evolves within minutes to hours following traumatic brain injury (TBI). Previous studies have identified axolemmal disruption and impaired axonal transport (AxT) as key mechanisms in the evolution of TAI. While initially hypothesized that axolemmal disruption culminates in impaired AxT, p...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2004.05.022
更新日期：2004-11-01 00:00:00
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journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2017.02.005
更新日期：2017-05-01 00:00:00
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journal_title：Experimental neurology
pub_type： 杂志文章
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更新日期：1985-06-01 00:00:00
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journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.2002.7908
更新日期：2002-07-01 00:00:00
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journal_title：Experimental neurology
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更新日期：2011-06-01 00:00:00
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journal_title：Experimental neurology
pub_type： 杂志文章
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更新日期：2017-08-01 00:00:00
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journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.2000.7576
更新日期：2001-03-01 00:00:00
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journal_title：Experimental neurology
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更新日期：1986-12-01 00:00:00
abstract：:Grafting fetal striatal cells into the brain of Huntington's disease (HD) patients has raised certain expectations in the past decade as an effective cell-based-therapy for this devastating condition. We argue that the first requirement for successful transplantation is defining the window of plasticity for the striat...
journal_title：Experimental neurology
pub_type： 杂志文章
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journal_title：Experimental neurology
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更新日期：2013-11-01 00:00:00
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journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.2002.7969
更新日期：2002-08-01 00:00:00
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journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1993.1018
更新日期：1993-02-01 00:00:00
