Abstract:
:Convection-enhanced delivery has recently entered the clinic and represents a promising new therapeutic option in the field of neurodegenerative diseases and treatment of brain tumors. Understanding of the principles governing delivery and flow of macromolecules within the CNS is still poorly understood and requires more investigation of the microanatomy and fluid dynamics of the brain. Our previously established, reflux-free convection-enhanced delivery (CED) technique and real-time imaging MR method for monitoring CED delivery of liposomes in primate CNS allowed us to closely monitor infusions of putamen. Our findings indicate that CED in putamen is associated with perivascular transport of liposomes, throughout CNS arteries. The results may explain side effects seen in current clinical trials using CED. In addition, they clearly show the necessity for a monitoring technique for future direct delivery of therapeutic agents to the human central nervous system. Based on these findings, we believe that the physiological concept that the perivascular space serves as a conduit for distribution of endogenous molecules within the CNS also applies to interstitially infused agents.
journal_name
Exp Neuroljournal_title
Experimental neurologyauthors
Krauze MT,Saito R,Noble C,Bringas J,Forsayeth J,McKnight TR,Park J,Bankiewicz KSdoi
10.1016/j.expneurol.2005.07.009keywords:
subject
Has Abstractpub_date
2005-11-01 00:00:00pages
104-11issue
1eissn
0014-4886issn
1090-2430pii
S0014-4886(05)00240-2journal_volume
196pub_type
杂志文章abstract::Cyclic nucleotides are thought to act as second messengers of neurotransmission inside central neurons, and cyclic guanosine monophosphate (cGMP) has been postulated to act as a messenger for muscarinic, cholinergic transmission. Nonetheless, the action of cGMP has not yet been established in identified cortical neuro...
journal_title:Experimental neurology
pub_type: 杂志文章
doi:10.1016/0014-4886(86)90054-3
更新日期:1986-03-01 00:00:00
abstract::Although ciliary neurotrophic factor (CNTF) has been shown to promote the survival of magnocellular neurons when applied exogenously to explants of the paraventricular and supraoptic nuclei (SON) in vitro, little is known regarding its expression or regulation in the adult magnocellular neurosecretory system (MNS) fol...
journal_title:Experimental neurology
pub_type: 杂志文章
doi:10.1016/j.expneurol.2005.09.009
更新日期:2006-01-01 00:00:00
abstract::We have studied the functional involvement of J1-160 and J1-180 in the interaction between oligodendrocytes and neurons, astrocytes, or L cells in short- and long-term adhesion assays using monoclonal antibodies directed against topographically distinct epitopes on the molecules. Whereas antibodies to mouse liver memb...
journal_title:Experimental neurology
pub_type: 杂志文章
doi:10.1016/s0014-4886(05)80012-3
更新日期:1990-07-01 00:00:00
abstract::Excessive synchronization of basal ganglia neuronal activity at ~20 Hz is characteristic of patients with untreated Parkinson's disease (PD). Correlative evidence suggests that this activity may contribute to bradykinesia. Attempts to demonstrate causality through stimulation imposed synchronization at 20 Hz in the re...
journal_title:Experimental neurology
pub_type: 杂志文章
doi:10.1016/j.expneurol.2011.05.018
更新日期:2011-09-01 00:00:00
abstract::Cervical injuries are the most common form of SCI. In this study, we used a neuromodulatory approach to promote skilled movement recovery and repair of the corticospinal tract (CST) after a moderately severe C4 midline contusion in adult rats. We used bilateral epidural intermittent theta burst (iTBS) electrical stimu...
journal_title:Experimental neurology
pub_type: 杂志文章
doi:10.1016/j.expneurol.2017.08.004
更新日期:2017-11-01 00:00:00
abstract::In vivo studies have shown that high blood concentrations of pituitary-adrenocortical hormones can activate the hippocampal cholinergic terminals. Incubation of hippocampal synaptosomal preparations with methylprednisolone, or with ACTH at concentrations comparable to stress-induced high concentrations in plasma, did ...
journal_title:Experimental neurology
pub_type: 杂志文章
doi:10.1016/0014-4886(87)90078-1
更新日期:1987-10-01 00:00:00
abstract::Increased vascular permeability causing vasogenic brain edema is characteristic for many acute neurological diseases such as stroke, brain trauma, and meningitis. Src family kinases, especially c-Src, play an important role in regulating blood-brain barrier permeability in response to VEGF, but also mediate leukocyte ...
journal_title:Experimental neurology
pub_type: 杂志文章
doi:10.1016/j.expneurol.2006.08.003
更新日期:2007-01-01 00:00:00
abstract::Peripheral nerve crush injury (PNCI) has been used for many years in adult animals to study central and peripheral changes related to regeneration across the injury site. While these adult animals experience full recovery with no neuronal cell loss following PNCI, it has been noted that the injury in perinatal animals...
journal_title:Experimental neurology
pub_type: 杂志文章
doi:10.1006/exnr.1999.7014
更新日期:1999-05-01 00:00:00
abstract::Huntington's disease (HD) is a progressive neurodegenerative disorder characterized by chorea, psychiatric disturbances, and dementia. It is caused by a polyglutamine repeat expansion in the huntingtin protein. The striatum is a major site of neuronal loss in HD, but the mechanisms underlying the neurodegenerative pro...
journal_title:Experimental neurology
pub_type: 杂志文章
doi:10.1006/exnr.2000.7434
更新日期:2000-09-01 00:00:00
abstract::The loss or injury of neurons associated with oxidative and nitrosative redox stress plays an important role in the onset of various neurodegenerative diseases. Specifically, nitric oxide (NO), can affect neuronal survival through a process called S-nitrosylation, by which the NO group undergoes a redox reaction with ...
journal_title:Experimental neurology
pub_type: 杂志文章,评审
doi:10.1016/j.expneurol.2012.06.032
更新日期:2012-11-01 00:00:00
abstract::After optic nerve transection beta cells of cat retinal ganglion cells (RGCs) suffer from rapid cell death from 3 to 7 days, whereas alpha cells gradual cell death until 14 days. Here we report electrophysiological properties of Y- (morphological alpha) and X- (morphological beta) cells at 5 and 14 days after axotomy ...
journal_title:Experimental neurology
pub_type: 杂志文章
doi:10.1006/exnr.2002.7958
更新日期:2002-09-01 00:00:00
abstract:BACKGROUND:Intracerebral hemorrhage (ICH) is the common brain diseases in middle-aged and elderly people, with high disability and/or mortality rate, and is a serious public health concern. Both WNK3 kinase and the WNK3/SPAK/NKCC1 signaling pathway play an integral role in maintaining normal cell homeostasis. However, ...
journal_title:Experimental neurology
pub_type: 杂志文章
doi:10.1016/j.expneurol.2020.113386
更新日期:2020-10-01 00:00:00
abstract::In order to test the functional implication of herpes simplex virus (HSV) vector-mediated gene transfer after axonal injury, we injected replication-incompetent HSV vectors coding for the anti-apoptotic peptide Bcl-2 and the glial cell-derived neurotrophic factor (GDNF), separately or in combination into ventral spina...
journal_title:Experimental neurology
pub_type: 杂志文章
doi:10.1016/S0014-4886(03)00334-0
更新日期:2003-12-01 00:00:00
abstract::Estrogen has been suggested to be pro-epileptic by reducing GABA synthesis, resulting in increased spine density and a decreased threshold for seizures in the hippocampus, which, once they occur, are characterized by a dramatic spine loss in the affected brain areas. As considerable amounts of estradiol are synthesize...
journal_title:Experimental neurology
pub_type: 杂志文章
doi:10.1016/j.expneurol.2006.07.020
更新日期:2007-01-01 00:00:00
abstract::Increased intercellular coupling has been implicated in contributing to the synchronization of discharges characteristic of epileptic foci. Using RNA blot analysis, the level of mRNA for the heart-type gap junction protein, connexin43, is shown to be elevated in samples of temporal lobe neocortex obtained at the time ...
journal_title:Experimental neurology
pub_type: 杂志文章
doi:10.1016/0014-4886(91)90007-y
更新日期:1991-02-01 00:00:00
abstract::Activity-dependent alteration in synaptic efficacy is referred to as synaptic plasticity and is the believed hallmark of any learning process. Here we employed a recently validated complex maze for spatial training and investigated the impact of repeated and extensive training on basal synaptic transmission of the hip...
journal_title:Experimental neurology
pub_type: 杂志文章
doi:10.1016/j.expneurol.2006.08.025
更新日期:2007-02-01 00:00:00
abstract::The monoclonal antibody Py has previously been shown to be a useful marker for subpopulations of neurons in the rat brain. However, the distribution of Py immunoreactivity in other regions of the CNS and PNS is not known. Here, we present a light and electron microscopic investigation into the distribution of Py immun...
journal_title:Experimental neurology
pub_type: 杂志文章
doi:10.1006/exnr.1997.6509
更新日期:1997-07-01 00:00:00
abstract::Morphologic alterations of the hippocampal mossy fiber pathway after postnatal lead exposure have been observed in rats. It is hypothesized that lead might perturb zinc pools found in this pathway. To test this hypothesis, rat pups were exposed to lead indirectly by administering 0.2% lead acetate to dams via the drin...
journal_title:Experimental neurology
pub_type: 杂志文章
doi:10.1016/0014-4886(84)90035-9
更新日期:1984-09-01 00:00:00
abstract::Oxidative stress has been implicated in several neurodegenerative diseases affecting both neuronal and glial cells. The aim of this study was to investigate the involvement of reactive oxygen species in glutamate-evoked activation of NF-kappaB in primary astrocytes. A prolonged exposure to glutamate (24 h) caused a de...
journal_title:Experimental neurology
pub_type: 杂志文章
doi:10.1016/j.expneurol.2005.01.014
更新日期:2005-06-01 00:00:00
abstract::Nerve growth factor (NGF) is well known to be involved in the development, survival, and maintenance of sympathetic and neural crest-derived sensory neurons in the peripheral nervous system. Over the last 10-15 years, however, the role of NGF as a necessary trophic substrate for magnocellular cholinergic neurons in th...
journal_title:Experimental neurology
pub_type: 杂志文章,评审
doi:10.1016/0014-4886(88)90231-2
更新日期:1988-12-01 00:00:00
abstract::Fifteen male mice (C57/Bl6J) were fed the liquid diet "Stardit" supplemented with vitamins together with phenytoin for 8 weeks; experimental animals and controls were pair-fed. After 8 weeks of treatment, the anesthetized animals were perfused with 3.5% glutaraldehyde. Tissue samples of the cerebral cortex (area 3), c...
journal_title:Experimental neurology
pub_type: 杂志文章
doi:10.1016/0014-4886(86)90026-9
更新日期:1986-01-01 00:00:00
abstract::Exposure of the rodent striatum to quinolinic acid (QA, N-methyl-D-aspartate receptor agonist) induces immediate early gene (IEG; c-fos, c-jun, jun-B, zif/268) expression that may extend 12-24 h after injection. In order to determine the specificity of the prolonged IEG response to the QA injection, the temporal patte...
journal_title:Experimental neurology
pub_type: 杂志文章
doi:10.1006/exnr.1997.6427
更新日期:1997-04-01 00:00:00
abstract::Breathing is a vital homeostatic behavior and must be precisely regulated throughout life. Clinical conditions commonly associated with inflammation, undermine respiratory function may involve plasticity in respiratory control circuits to compensate and maintain adequate ventilation. Alternatively, other clinical cond...
journal_title:Experimental neurology
pub_type: 杂志文章,评审
doi:10.1016/j.expneurol.2016.07.022
更新日期:2017-01-01 00:00:00
abstract::Anisotropy indices derived from diffusion tensor imaging (DTI) are being increasingly used as biomarkers of central WM structural maturation, myelination and even functional development. Our hypothesis was that the rate of functional changes in central WM tracts directly reflects rate of changes in structural developm...
journal_title:Experimental neurology
pub_type: 杂志文章
doi:10.1016/j.expneurol.2014.06.021
更新日期:2014-11-01 00:00:00
abstract::c-fos expression in response to noxious mechanical stimulation of the peripheral receptive field was used to study the somatotopic representation of the oral mucous membrane and trigeminal cutaneous receptive fields in the trigeminal subnucleus caudalis and the cervical spinal dorsal horn. Fos-neurons (neurons with c-...
journal_title:Experimental neurology
pub_type: 杂志文章
doi:10.1006/exnr.1994.1167
更新日期:1994-10-01 00:00:00
abstract::Wnt5b, a member of Wnt family, plays multiple roles in tumor progression and metastasis. However, whether Wnt5b contributes to the sensitization of dorsal root ganglia (DRG) neurons and pathogenesis of bone cancer pain still remains unclear. Here, we found that the protein expression of Wnt5b and its atypical tyrosine...
journal_title:Experimental neurology
pub_type: 杂志文章
doi:10.1016/j.expneurol.2020.113482
更新日期:2020-12-01 00:00:00
abstract::It is difficult to assess cerebral function in comatose patients. Because earlier functional neuroimaging studies demonstrate associations between cerebral metabolism and levels of consciousness, fMRI in comatose survivors of cardiac arrest could provide further insight into cerebral function during coma. Using fMRI, ...
journal_title:Experimental neurology
pub_type: 杂志文章
doi:10.1016/j.expneurol.2009.03.011
更新日期:2009-06-01 00:00:00
abstract::Dentate gyrus is usually assumed to be resistant to ischemia. However, the mechanisms underlying this functional plasticity are not fully understood. Herein, we aimed at identifying a neuroprotective mechanism in the dentate gyrus of the adult rat after global ischemia. Cyclic AMP response element (CRE)-binding protei...
journal_title:Experimental neurology
pub_type: 杂志文章
doi:10.1016/j.expneurol.2006.06.016
更新日期:2006-12-01 00:00:00
abstract::Grafts of neonatal striatal tissue were placed into the striata of adult rats. When challenged immediately with intrastriatal injections of either kainic or quinolinic acid, excitotoxic damage was prevented. Thirty days later these same graft recipients received another injection of excitotoxin. The intrastriatal graf...
journal_title:Experimental neurology
pub_type: 杂志文章
doi:10.1016/0014-4886(88)90227-0
更新日期:1988-12-01 00:00:00
abstract::Unit activity related to a go/no-go visual discrimination task was studied in four rhesus monkeys. We recorded 272 task-related cells from frontal cortex in a region extending from the midprincipal sulcus to the central sulcus, and medially to the cingulate sulcus. Units located in anterior regions (dorsolateral prefr...
journal_title:Experimental neurology
pub_type: 杂志文章
doi:10.1016/0014-4886(87)90213-5
更新日期:1987-06-01 00:00:00