Abstract:
:Close to 20% of the patients infected with the AIDS virus develops neurological deficit; eventhough HIV does not invade neurons. Consistently with the neurological deficit, HIV(+) subjects show abnormalities in brainstem auditory and visual evoked potentials (BSAEP and VEP) and in sleep patterns. The HIV-derived glycoprotein 120 has been postulated as a neurotoxic; therefore, it may be playing a crucial role in the generation of BSAEP and VEP, as well as in sleep disturbances. To study the role of the virus-derived proteins on the development of these electrophysiological signals' alterations, we have used the feline immunodeficiency virus (FIV)-derived gp120 and evaluated the changes in these electrophysiological signals. We employed 15 adult male Sprague-Dawley rats (250-350 g), chronically implanted for evoked potential and sleep recordings. Results showed that the i.c.v. administration of FIVgp120 (5 ng/10 microliter) produces changes in the latency of both cortical auditory evoked potentials (CAEPs) and VEPs and a decrease in both REM sleep and SWS. These data support the notion that FIVgp120 is neurotoxic to the central nervous system of cats and rats and that this protein suffices to cause electrophysiological alterations. In addition, it suggests that a similar effect may be occurring in humans as a result of HIVgp120's neurotoxic effects.
journal_name
Brain Resjournal_title
Brain researchauthors
Prospéro-García O,Huitrón-Resendiz S,Casalman SC,Sánchez-Alavez M,Díaz-Ruiz O,Navarro L,Lerner DL,Phillips TR,Elder JH,Henriksen SJdoi
10.1016/s0006-8993(99)01572-3subject
Has Abstractpub_date
1999-07-31 00:00:00pages
203-9issue
1-2eissn
0006-8993issn
1872-6240pii
S0006-8993(99)01572-3journal_volume
836pub_type
杂志文章相关文献
BRAIN RESEARCH文献大全abstract::We developed a new model of embolic cerebral ischemia in the rat which provides a reproducible and predictable infarct volume within the territory supplied by the middle cerebral artery (MCA). The MCA was occluded by an embolus in Wistar rats (n = 71). An additional three non-embolized rats were used as a control. Cer...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(97)00580-5
更新日期:1997-08-22 00:00:00
abstract::Tumor suppressor p53 has recently been reported to have numerous functions independent of tumorigenesis, including neuronal survival during ischemia. The mammalian target of rapamycin (mTOR) signaling pathway plays a central role in the regulation of metabolism, cell growth, development, and cell survival. Our recent ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2015.02.009
更新日期:2015-04-24 00:00:00
abstract::The presence of calretinin and calbindin immunoreactivity is studied in the retina of larval and adult lamprey and their respective distributions are compared. Calretinin distribution is also studied in the retina of transforming stages. Western blot analysis in brain extracts showed a 29-kDa band with both polyclonal...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2005.11.014
更新日期:2006-01-12 00:00:00
abstract::The axons in the nerve fiber layer (NFL) of the adult rat retina were examined by transmission electron microscopy. NFL axons range in size from 0.12 to about 2.0 microm, with a peak at 0.3-0.4 microm. In addition to conventional small mitochondria in the NFL axons contain some large ones, which are similar to astrocy...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(83)91222-2
更新日期:1983-01-03 00:00:00
abstract::The independent and combined effects of Ca2+, Mg2+, Zn2+, Al3+ and Li+ on [3H]MK-801 binding in human cerebral cortical membranes were studied to further characterize the modulatory effects of metal ions on the N-methyl-D-aspartate (NMDA) receptor-ionophore. Glycine, in the presence of glutamate, significantly intensi...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(89)91290-0
更新日期:1989-05-01 00:00:00
abstract::Maternal separation is known to exert long-term effects on both behavior and the neuroendocrine system. We investigated cocaine-induced locomotor activation as well as the locomotor and corticosterone response to forced novelty in maternally separated adolescent and adult rats. Maternal separation consisted of separat...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2004.04.003
更新日期:2004-07-02 00:00:00
abstract::We examined in the present study alterations in cerebral blood flow (CBF) and blood-brain barrier (BBB) permeability following intrastriatal transplantation of mouse bone marrow stromal cells (BMSCs) or saline infusion in adult Sprague-Dawley rats. Laser Doppler revealed that transplanted animals exhibited near normal...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2004.02.050
更新日期:2004-05-29 00:00:00
abstract::There is evidence that acute exposure to kainic acid (KA) induces the release of endogenous ligands for opioid receptors and that mu-opioid agonists intensify KA-induced neurodegeneration. The aim of the present study was to investigate any acute toxic effects of KA upon mu-opioid receptors labelled with [3H]-DAMGO. 2...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(98)00992-5
更新日期:1998-12-14 00:00:00
abstract::IgLONs are a family of four GPI-anchored cell adhesion molecules that regulate neurite outgrowth, synaptogenesis and may act as tumour suppressor genes. IgLONs are thought to function as monomers or homodimers and we have proposed that IgLONs also act as heterodimeric complexes termed Dimeric IgLONs or DIgLONs. Here w...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2010.12.028
更新日期:2011-02-16 00:00:00
abstract::Poor sleep and insomnia have been recognized to be strongly correlated with the development of depression. The exploration of the basic mechanism of sleep disturbance could provide the basis for improved understanding and treatment of insomnia and prevention of depression. In this study, 31 subjects with insomnia symp...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2016.07.024
更新日期:2016-10-01 00:00:00
abstract::Growth cones integrate a remarkably complex concert of chemical cues to guide axons to their appropriate destinations. Recent work suggests that integrins contribute to axon guidance by interacting with a wide range of extracellular molecules including axon guidance molecules, by mechanisms that are not fully understo...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2013.08.045
更新日期:2013-11-06 00:00:00
abstract::Many parts of the brainstem are known to be innervated by the cholinergic neurons of the pontomesencephalic tegmentum, but other possible sources of this innervation have rarely been considered. We sought to examine whether other cells in the brainstem were responsible for this cholinergic input using axonal tract tra...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(94)90185-6
更新日期:1994-02-04 00:00:00
abstract::In the brain, the neuropeptide cholecystokinin (CCK) appears to be involved in the mediation of stress responses. Here we provide new evidence that mild stress induces long-term changes in CCK-like immunoreactivity (CCK-LI) in the prefrontal cortex (PFC). The changes in CCK-LI show a biphasic pattern, with a decrease ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(01)02648-8
更新日期:2001-07-27 00:00:00
abstract::gamma-L-Glutamyl-L-aspartic acid (gamma-LGLA) has been isolated from Datura stramonium; its structure has been determined and it was then synthesized. In male Swiss mice intraperitoneal administration of the natural peptide (125 nmol/kg) or of the synthetic peptide (25-2500 nmol/kg) 24 h after acquisition of a Y-maze ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(88)90878-5
更新日期:1988-04-19 00:00:00
abstract::Hippocampal CA1 pyramidal cell neurons are sensitized to depolarization by L-2-amino-4-phosphonobutanoic acid (L-AP4) following exposure to L-quisqualic acid (QUIS). It has been proposed that induction of this 'QUIS-effect' involves uptake of L-QUIS by hippocampal cells. We have used o-phthaldialdehyde (OPA) derivatiz...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(93)91359-z
更新日期:1993-03-05 00:00:00
abstract::Histaminergic fibers in the mesencephalic nucleus of the trigeminal nerve of Long-Evans rats were examined by light and electron microscopy after peroxidase-antiperoxidase immunocytochemical staining for histidine decarboxylase (HDC) as a marker. By light microscopy, neurons in the mesencephalic nucleus of the trigemi...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(87)90109-0
更新日期:1987-08-25 00:00:00
abstract::The distribution of alpha scorpion toxin (alpha-ScTx) receptors was examined in differentiated mouse neuroblastoma cell cultures (N IE 115 clone) by electron microscope autoradiography using [125I]alpha-ScTx. This neurotoxin binds specifically to voltage-sensitive sodium channels, slowing down the inactivation of the ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(85)90561-x
更新日期:1985-05-13 00:00:00
abstract::The disturbance of microcirculation following cerebral ischemia leads to an enlargement of cerebral infarct volume. Endogenous thrombin may play a role in this disturbance of microcirculation following cerebral ischemia. Therefore, the inhibition of thrombin may improve neurodegeneration and the accumulation of cerebr...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(01)02354-x
更新日期:2001-06-01 00:00:00
abstract::Routine cell stains disclose abnormal, usually single, nests of ectopic neurons in neocortical layer I of New Zealand Black (NZB) and BXSB autoimmune mice. We have suggested that these anomalies represent only the most visible part of more widespread cortical disorganization. In an attempt to determine the true magnit...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(90)90828-y
更新日期:1990-10-08 00:00:00
abstract::The sites of action of lidocaine on the responses evoked by stimulation of lateral column (LC) and dorsal root (DR) were studied in the isolated, intra-arterially perfused spinal cord of the bullfrog. When the ventral root volley produced by stimulation was abolished by lidocaine, the presynaptic focal potential was a...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(82)90172-x
更新日期:1982-10-07 00:00:00
abstract::It is well documented that VMAT2 protects nigrostriatal DA neurons against MPP(+) by sequestering it inside vesicles away from its mitochondrial site of neurotoxic action. However, the implication of the VMAT2 in the mechanism of action exerted by 6-OHDA has received little attention. Therefore, the aim of the present...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(03)03333-x
更新日期:2003-11-07 00:00:00
abstract::Transthyretin (TTR) is mainly expressed in the liver and choroid plexus of the brain. The majority of familial amyloidotic polyneuropathy cases are caused by a mutant TTR gene. The origin of the TTR deposited in the peripheral nervous system is unknown. We studied the expression of TTR in the peripheral nerves of norm...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2010.06.017
更新日期:2010-08-12 00:00:00
abstract::Niemann-Pick Type C (NPC) disease is an autosomal recessive neurodegenerative disorder with abnormal lipid storage as the major cellular pathologic hallmark. Genetic analyses have identified mutations in NPC1 gene in the great majority of cases, while mutations in NPC2 account for the remainders. Yet little is known r...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/j.brainres.2010.02.019
更新日期:2010-04-14 00:00:00
abstract::Concurrent activation of dopamine D1 and D2 receptors (D1 and D2) is required for the expression of certain dopamine (DA)-mediated responses, such as climbing and stereotyped behaviors. Such interactions between D1 and D2 (i.e. D1/D2 synergism) represent an important aspect of dopaminergic function and plasticity. The...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(02)04277-4
更新日期:2003-03-28 00:00:00
abstract::This study investigated the effects of antidromically conducted nerve impulses on the transmission of orthodromic volleys in primary afferents of the hindlimb in decerebrated paralyzed cats. Two protocols were used: (A) Single skin and muscle afferents (N=20) isolated from the distal part of cut dorsal rootlets (L7-S1...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/s0006-8993(99)01236-6
更新日期:1999-04-17 00:00:00
abstract::Immunohistochemical studies have suggested that corticotropin-releasing factor (CRF) was a transmitter of the olivocerebellar projection. We used in situ hybridization histochemistry with a 35S-labeled oligodeoxyribonucleotide probe for CRF mRNA to show that inferior olivary neurons of rats, baboons, and humans synthe...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0169-328x(86)90010-0
更新日期:1986-11-01 00:00:00
abstract::Synaptic plasma membrane preparations from brain tissue have endogenous Ca2+-dependent phospholipase A2 activity. Characterization of this activity revealed that it was maximally active at 10(-7)-10(-5) M Ca2+ and pH 7.0. The enzyme had a Km of 62.0 microM and a Vmax of 98.0 nmol/mg/h. Calmodulin and prostaglandin F2 ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(84)90944-2
更新日期:1984-01-09 00:00:00
abstract::We examined the effect of prostaglandin (PG)E2 on the sleep-wake activity and on body temperature by microinjecting PGE2 into the preoptic area of rats that had been chronically implanted with guide cannulae and electrodes for the recordings of electroencephalogram and electromyogram. PGE2 at doses of 2.5 X 10(-13), 2...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(88)90935-3
更新日期:1988-03-22 00:00:00
abstract::The non-cholinergic excitatory potential elicited in neurons of the isolated inferior mesenteric ganglia was depressed by bath application of Met- or Leu-enkephalin and enhanced by naloxone or naltrexone. The membrane depolarization induced by exogenously applied putative transmitter substance P was not appreciably af...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(82)90211-6
更新日期:1982-03-04 00:00:00
abstract::It has been suggested that the mechanism underlying the pain that occurs in patients with diabetic neuropathy may be similar to that mediating sympathetically maintained pain (SMP), such as occurs in patients with reflex sympathetic dystrophy. To evaluate this suggestion we have examined a model of diabetes mellitus, ...
journal_title:Brain research
pub_type: 杂志文章
doi:10.1016/0006-8993(93)90206-3
更新日期:1993-07-09 00:00:00