Abstract:
:Studies of the effects of hypoglycemia on the brain using neurocognitive testing have suggested that mainly complex functions subserved by secondary and tertiary cortex are affected by mild to moderate hypoglycemia and that intensively treated patients with Type I diabetes mellitus (T1DM) may have altered sensitivity to the central nervous system effects of hypoglycemia. Functional magnetic resonance imaging provides a sensitive, regionally-specific probe of possible neurophysiologic changes related to hypoglycemia in the brain. Eleven intensively-treated T1DM patients and 11 matched non-diabetic controls took part in a 2-day protocol in which functional magnetic resonance imaging (MRI) was used to measure changes in the patterns of brain activation produced by simple auditory and visual stimuli in different conditions. On one day, participants were euglycemic the entire time. On the other day, an initial 50-min euglycemic period was followed by a 50-min hypoglycemic period. Results indicated that hypoglycemia reduced the amplitude of the blood-oxygenation level dependent response in primary auditory and visual cortex to simple auditory and visual stimuli. The latency and duration of the transient hemodynamic response function were not affected. Responses to hypoglycemia were similar in diabetic and non-diabetic participants. These results suggest that mild to moderate hypoglycemia may alter the balance of blood flow and oxygen extraction when glucose levels are lowered. Intensively-treated T1DM, with its attendant frequent hypoglycemic episodes, did not seem to alter hypoglycemic responses in primary visual and auditory cortex.
journal_name
J Neurosci Resjournal_title
Journal of neuroscience researchauthors
Driesen NR,Goldberg PA,Anderson AW,Tang L,Flanagan DE,Sherwin RS,Gore JCdoi
10.1002/jnr.21146subject
Has Abstractpub_date
2007-02-15 00:00:00pages
575-82issue
3eissn
0360-4012issn
1097-4547journal_volume
85pub_type
杂志文章abstract::The brain is both central in orchestrating the response to stress, and, a very sensitive target when such response is not controlled. In fact, stress has long been associated with the onset and/or exacerbation of several neuropsychiatric disorders such as anxiety, depression, and drug addiction. The hippocampus is a k...
journal_title:Journal of neuroscience research
pub_type: 杂志文章,评审
doi:10.1002/jnr.24614
更新日期:2021-01-01 00:00:00
abstract::Low density dissociated cultures of embryonic rat hippocampal cells were used to study the effects of neurotrophin-3 (NT-3) on neuronal morphogenesis. The results obtained indicate that NT-3 enhances neurite outgrowth and branching; this is a dose-dependent effect, detected in approximately 50% of the neurons, and pre...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490390212
更新日期:1994-10-01 00:00:00
abstract::Quercetin, a strong free radical scavenger, is investigated for neuroprotective effects in a Neuro 2a cell line conditionally transfected with 16Q huntingtin (Htt) and 150Q Htt, which express the protein upon stimulation. Cells were protected from death by a 20-µM dose of quercetin on the second day of Htt induction, ...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.23618
更新日期:2015-10-01 00:00:00
abstract::Nascent neural crest cells derived from explanted E12 embryonic rat caudal neural tubes were used as an assay system to investigate the effects of fibroblast growth factors on neural crest cell (NCC) survival, proliferation, migration, and differentiation. In vitro and in vivo all NCC express low affinity nerve growth...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490360106
更新日期:1993-09-01 00:00:00
abstract::Glutamate is an important regulator of dendrite development; however, during cerebral ischemia, massive glutamate release can lead to neurodegeneration and death. An early consequence of glutamate excitotoxicity is dendrite injury, which often precedes cell death. We examined the effect of glutamate on dendrite growth...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.10797
更新日期:2003-12-01 00:00:00
abstract::The expression of many myelin-specific molecules in Schwann cells is profoundly decreased following denervation. This study examines the early reexpression of myelin protein genes associated with reinnervation. Following sciatic nerve crush, the distal, regenerated nerve was divided into appropriate (2.5 or 5 mm) cons...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490270202
更新日期:1990-10-01 00:00:00
abstract::Barbiturates are regularly used as an anesthetic for animal experimentation and clinical procedures and are frequently provided with solubilizing compounds, such as ethanol and propylene glycol, which have been reported to affect brain function and, in the case of (1)H NMR experiments, originate undesired resonances i...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.22212
更新日期:2010-02-01 00:00:00
abstract::Drebrins are developmentally regulated actin-binding proteins. In this study, we analyzed subcellular distribution of drebrin E in neuroblastoma cells (SH-SY5Y) in culture, especially in terms of its relationship to actin filaments. In undifferentiated cells, drebrin E was scattered as flocculus small dots along the s...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490380205
更新日期:1994-06-01 00:00:00
abstract::The periglomerular cells (PG) of the olfactory bulb (OB) are involved in the primary processing and the refinement of sensory information from the olfactory epithelium. The neurochemical composition of these neurons has been studied in depth in many species, and over the last decades such studies have focused mainly o...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.22521
更新日期:2011-01-01 00:00:00
abstract::Embryonic central nervous system neuroepithelial cells are a transient population of cells that give rise to neuronal and glial progenitors. In the E12-E16 embryonic rat spinal neural tube we have identified neuroepithelial cells as radially oriented cells expressing the GD3 ganglioside as recognized by the monoclonal...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4547(19960901)45:5<549::AID-JNR
更新日期:1996-09-01 00:00:00
abstract::Although alterations in adenylate cyclase (AC) activity and somatostatin (SRIF) receptor density have been reported in Alzheimer's disease, the effects of amyloid beta-peptide (Abeta) on these parameters in the hippocampus are unknown. Our aim was to investigate whether the peptide fragment Abeta(25-35) can affect the...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.21115
更新日期:2007-02-01 00:00:00
abstract::Structural microtubule-associated proteins (MAPs) interact with microtubules to regulate the various dynamic stages of microtubules. The purpose of this study was to measure the impact of myc-tagged MAP1a fragments on microtubule dynamic phases in vivo. Cells from an epithelial kidney cell line (LLCPK1) that had been ...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.21920
更新日期:2009-04-01 00:00:00
abstract::Lipoic acid plays a crucial role as antioxidant and metabolic component of enzymes involved in glucose metabolism of different cell types. Choline alphoscerate (α-glyceryl-phosphoryl-choline [αGPC]) is a semisynthetic derivative of phosphatidylcholines representing, among acetilcholine precursors, a cholinergic drug. ...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.23289
更新日期:2014-01-01 00:00:00
abstract::Muscarinic cholinergic receptors of the M5 subtype are expressed by dopamine-containing neurons of the ventral tegmentum. These M5 receptors modulate the activity of midbrain dopaminergic neurons, which play an important role in mediating reinforcing properties of abused psychostimulants like cocaine. The potential ro...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.10728
更新日期:2003-10-01 00:00:00
abstract::Contrary to widely held beliefs, the gene encoding proteolipid protein (PLP), the major structural protein of central nervous system myelin, is expressed in Schwann cells and their tumors. Proteolipid mRNA was identified in human acoustic neuromas and in rat and rabbit sciatic nerves using a human PLP cDNA as a probe....
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490180402
更新日期:1987-01-01 00:00:00
abstract::Leptin is a potent AMP kinase (AMPK) inhibitor that induces neuroprotection, neurogenesis, and angiogenesis when administered immediately after stroke. To dissociate these effects, we explored the effects of delayed administration of leptin, at 10 days after stroke onset, on neurogenesis and angiogenesis after stroke....
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.23147
更新日期:2013-02-01 00:00:00
abstract::We have shown previously that in oligodendrocytes, the transcription factor cyclic AMP response element binding protein (CREB) is maximally expressed immediately prior to the most rapid period of myelination in rat brain. We have begun to investigate the role of this protein during myelination by downregulating CREB s...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4547(19961001)46:1<98::AID-JNR1
更新日期:1996-10-01 00:00:00
abstract::Neuron-glia interactions at paranodal junctions play important roles in action potential propagation. Among their many functions, they contribute to the passive electrical properties of myelinated nerve fibers and actively regulate the polarized distribution of ion channels along axons. Despite their importance, relat...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.21984
更新日期:2009-11-15 00:00:00
abstract::Double immunofluorescence studies using antibodies against NF-L and peripherin revealed three distinct subpopulations of neurons in rat dorsal root ganglia (DRG). In the adult rat, 46% of the DRG neurons were small and peripherin-positive (NF-L-negative), and 48% were large and NF-L-positive (peripherin-negative). Abo...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490300111
更新日期:1991-09-01 00:00:00
abstract::The presence of glycosaminoglycans (GAG) has been histochemically demonstrated in the CNS of various mammalian species. They have been related with some nerve functions as neurotransmitters storage and synaptic transmission. In the present paper, the histochemical properties of nerve cell cytoplasmic GAG were studied ...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490110103
更新日期:1984-01-01 00:00:00
abstract::Music has a long history of healing or mitigating physical and mental illness in the clinical setting. We aimed to test changes in behavioral cognition and serum proteomics in rats undergoing music intervention (MI). The Morris water maze (MWM) was used to evaluate spatial learning and memory in rats. Serum protein ex...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.24275
更新日期:2018-10-01 00:00:00
abstract::Astrocyte activation is an important feature in many disorders of the central nervous system, including chronic pain conditions. Activation of astrocytes is characterized by a change in morphology, including hypertrophy and increased size of processes, proliferation, and an increased production of proinflammatory medi...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.23144
更新日期:2013-02-01 00:00:00
abstract::The concept of the neurovascular unit emphasizes that common signals and substrates underlie the physiology and pathophysiology of neuronal and endothelial compartments in brain. Recent data suggest that activation of the integrin-associated protein CD47 promotes neuronal cell death. Is it possible that CD47 may also ...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.22076
更新日期:2009-08-15 00:00:00
abstract::It has been postulated that the pathogenesis of Parkinson's disease (PD) is associated with mitochondrial dysfunction. Rotenone, an inhibitor of mitochondrial complex I, provides models of PD both in vivo and in vitro. We investigated the neuroprotective effect of D-beta-hydroxybutyrate (bHB), a ketone body, against r...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.21021
更新日期:2006-11-01 00:00:00
abstract::Manganese (Mn) is an essential metal and plays an important role in the brain. To evaluate Mn uptake into the brain during development and aging, 54Mn concentrations in the brain of rats aged from 5 days to 95 weeks were measured after injection of 54MnCl2. 54Mn concentration in the brain of 5-day-old rats was the hig...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4547(19990401)56:1<93::AID-JNR1
更新日期:1999-04-01 00:00:00
abstract::Preterm birth and associated brain injury are the primary cause of cerebral palsy and developmental disabilities and are among the most serious global health issues that modern society faces. Current therapy for infants suffering from premature brain injury is still mainly supportive, and there are no effective treatm...
journal_title:Journal of neuroscience research
pub_type: 杂志文章,评审
doi:10.1002/jnr.24548
更新日期:2020-05-01 00:00:00
abstract::Astroglial cells play an important role in maintaining neuronal function in the adult and in the developing nervous system. Ethanol exposure induces profound alterations in the astrogliogenesis process, affecting important cell functions, including intracellular protein trafficking. Because the actin cytoskeleton play...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.10594
更新日期:2003-05-15 00:00:00
abstract::Anoxia during delivery is a complication that can disturb infant brain development leading to various types of neurological disorders. Our studies have shown that increased body temperature of newborn rats of both sexes intensifies the postanoxic oxidative stress and prevents triggering the endogenous adaptive respons...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.24486
更新日期:2019-10-01 00:00:00
abstract::The effects of the human immunodeficiency virus type 1 envelope protein gp120 on the release of GABA elicited by N-methyl-D-aspartate (NMDA) from rat hippocampal neurons in primary culture has been investigated. NMDA (1-300 microM) increased in a concentration-dependent manner (EC50 =37.9+/-12 microM) the release of [...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4547(19970915)49:6<732::AID-JNR
更新日期:1997-09-15 00:00:00
abstract::Understanding the pathway for amyloid percursor protein (APP) catabolism has become an important line of investigation. APP is a ubiquitous membrane bound protein that is rapidly cleaved at the membrane, yielding a secreted protein identical to protease nexin II and an internalized 11.5 kDa 100 residue C terminal deri...
journal_title:Journal of neuroscience research
pub_type: 杂志文章
doi:10.1002/jnr.490330121
更新日期:1992-09-01 00:00:00