Abstract:
:Cerebral blood flow (CBF) and cerebral oxygen metabolism (CMRO2) were measured in aged (24 month) spontaneously hypertensive rats (SHR) during sodium nitroprusside (SNP) and nitroglycerin induced hypotension. Both CBF and CMRO2 were decreased in SHR during hypotension induced with SNP. Significant decrements in CMRO2 were observed in aged SHR during even moderate hypotension (80-90 torr). Cerebral autoregulatory responses during nitroglycerin infusion in aged SHR were similar to SNP treated WKY and CMRO2 was maintained at control levels under all hypotensive test conditions. These results indicate that aged SHR are susceptible to cerebral ischemia during SNP induced hypotension, probably due to the combined effects of aging and hypertension on the cerebral vasculature. NTG moderated the decreases in CBF and CMRO2 seen during hypotensive challenges and may decrease the risk of stroke during hypotensive anesthesia.
journal_name
Neurobiol Agingjournal_title
Neurobiology of agingauthors
Hoffman WE,Miletich DJ,Albrecht RFdoi
10.1016/0197-4580(82)90003-3subject
Has Abstractpub_date
1982-07-01 00:00:00pages
101-4issue
2eissn
0197-4580issn
1558-1497pii
0197-4580(82)90003-3journal_volume
3pub_type
杂志文章abstract::N-Methyl-D-Aspartate (NMDA) receptors are believed to play a critical role in excitotoxic cell death in the CNS. The distribution of NMDA-preferring binding sites is compared here with the patterns of selective neuronal death observed in Alzheimer's disease and following transient ischemia. The distribution of NMDA re...
journal_title:Neurobiology of aging
pub_type: 杂志文章
doi:10.1016/0197-4580(89)90148-6
更新日期:1989-09-01 00:00:00
abstract::Mitophagy and mitochondrial biogenesis are 2 pathways that regulate mitochondrial content and metabolism maintaining cellular homeostasis. The imbalance between these opposing processes impairs mitochondrial function and is suggested to be the pathophysiological basis of a variety of neurodegenerative diseases and agi...
journal_title:Neurobiology of aging
pub_type: 杂志文章
doi:10.1016/j.neurobiolaging.2019.03.013
更新日期:2019-07-01 00:00:00
abstract::Detailed analyses of neuronal and astrocyte cell numbers in the ganglion cell layer (GCL) of whole-mounted peripheral retinas from 16 Alzheimer's disease (AD) and 11 control eyes (11 and 9 cases, respectively) demonstrate extensive neuronal loss throughout the entire retina in AD as compared to control eyes. The obser...
journal_title:Neurobiology of aging
pub_type: 杂志文章
doi:10.1016/0197-4580(96)00009-7
更新日期:1996-05-01 00:00:00
abstract::Demonstrations that grip strength has predictive power in relation to a range of health conditions-even when these are assessed decades later-has motivated claims that hand-grip dynamometry has the potential to serve as a "vital sign" for middle-aged and older adults. Central to this belief has been the assumption tha...
journal_title:Neurobiology of aging
pub_type: 杂志文章,评审
doi:10.1016/j.neurobiolaging.2018.07.023
更新日期:2018-11-01 00:00:00
abstract::This commentary addresses issues raised in common by the various authors of papers in this section: the role of different chemical systems in memory, new approaches for assessing the effects of drugs, and issues for the future in evaluating animal models of human disorders of memory. ...
journal_title:Neurobiology of aging
pub_type: 杂志文章
doi:10.1016/s0197-4580(88)80125-8
更新日期:1988-09-01 00:00:00
abstract::A loss of hippocampal neurons and synapses had been considered a hallmark of normal aging and, furthermore, to be a substrate of age-related learning and memory deficits. Recent stereological studies in humans have shown that only a relatively minor neuron loss occurs with aging and that this loss is restricted to spe...
journal_title:Neurobiology of aging
pub_type: 杂志文章
doi:10.1016/s0197-4580(98)00098-0
更新日期:1998-11-01 00:00:00
abstract::To determine if the membrane disordering effect of ethanol on cerebral microvessels is altered with age, the steady state fluorescence polarization (P) of diphenyl-hexatriene (DPH) and 1-(4-trimethylammoniumphenyl)-6-phenyl-1,3,5-hexatriene (TMA-DPH) which report on the membrane core and surface region, respectively, ...
journal_title:Neurobiology of aging
pub_type: 杂志文章
doi:10.1016/0197-4580(93)90005-v
更新日期:1993-05-01 00:00:00
abstract::Age-dependent cognitive impairments have been correlated with functional and structural modifications in the hippocampal formation. In particular, the brain endogenous steroid pregnenolone-sulfate (Preg-S) is a cognitive enhancer whose hippocampal levels have been linked physiologically to cognitive performance in sen...
journal_title:Neurobiology of aging
pub_type: 杂志文章
doi:10.1016/j.neurobiolaging.2004.03.013
更新日期:2005-01-01 00:00:00
abstract::Paranodal axo-glial junctional complexes anchor the myelin sheath to the axon and breakdown of these complexes presumably facilitates demyelination. Myelin deterioration is also prominent in the aging central nervous system (CNS); however, the stability of the paranodal complexes in the aged CNS has not been examined....
journal_title:Neurobiology of aging
pub_type: 杂志文章
doi:10.1016/j.neurobiolaging.2010.08.001
更新日期:2012-01-01 00:00:00
abstract::Regions of diffuse periventricular white matter hyperintensities (PVWMH) are a common finding on T(2)-weighted MRI scans of older subjects, but their aetiology remains unclear. The aim of this study was to characterize differences in water diffusion and magnetization transfer MRI parameters between macroscopically nor...
journal_title:Neurobiology of aging
pub_type: 杂志文章
doi:10.1016/j.neurobiolaging.2007.05.013
更新日期:2009-01-01 00:00:00
abstract::The social species Octodon degus (degu) is the only wild-type South American rodent that develops Alzheimer's-like pathology with age. Here, we evaluated the ability of a natural product (Andrographolide, ANDRO), a diterpene of the labdane family obtained from the Asian plant Andrographis paniculata, to recover the co...
journal_title:Neurobiology of aging
pub_type: 杂志文章
doi:10.1016/j.neurobiolaging.2016.06.021
更新日期:2016-10-01 00:00:00
abstract::Recent findings seem to converge towards a unified hypothesis trying to relate Down's syndrome (DS), trisomy 21 and Alzheimer's disease (AD). The majority of DS individuals develop neuropathological characteristics of AD by the age of 40. Previous cytogenetic studies performed by us showed an increased frequency of an...
journal_title:Neurobiology of aging
pub_type: 杂志文章
doi:10.1016/j.neurobiolaging.2005.03.025
更新日期:2006-05-01 00:00:00
abstract::Extracellular senile plaques (SPs) are hallmark brain lesions of sporadic Alzheimer's disease (AD) and the likely consequence of genetic mutations that cause familial AD by increasing production of amyloidogenic amyloid-beta (Abeta). Although Abeta vaccines and inhibitors of amyloidogenic secretases are potential AD t...
journal_title:Neurobiology of aging
pub_type: 杂志文章,评审
doi:10.1016/s0197-4580(02)00121-5
更新日期:2002-11-01 00:00:00
abstract::Long-term ovariectomy attenuates several neuroendocrine-dependent changes in reproductive function of aging female rodents, but the sites affected and underlying mechanisms are not known. This study was designed to identify effects of aging on hypothalamic-preoptic neurocytoarchitecture and to determine whether long-t...
journal_title:Neurobiology of aging
pub_type: 杂志文章
doi:10.1016/0197-4580(89)90005-5
更新日期:1989-11-01 00:00:00
abstract::Flexible instrumental learning is required to harness the appropriate behaviors to obtain rewards and to avoid punishments. The precise contribution of dopaminergic midbrain regions (substantia nigra/ventral tegmental area [SN/VTA]) to this form of behavioral adaptation remains unclear. Normal aging is associated with...
journal_title:Neurobiology of aging
pub_type: 杂志文章
doi:10.1016/j.neurobiolaging.2013.03.030
更新日期:2013-10-01 00:00:00
abstract::Zen meditation, a Buddhist practice centered on attentional and postural self-regulation, has been speculated to bring about beneficial long-term effects for the individual, ranging from stress reduction to improvement of cognitive function. In this study, we examined how the regular practice of meditation may affect ...
journal_title:Neurobiology of aging
pub_type: 杂志文章
doi:10.1016/j.neurobiolaging.2007.06.008
更新日期:2007-10-01 00:00:00
abstract::Acetyl-1-carnitine (AC) was administered via drinking water for six months to one group (OLD-AC) of male F-344 rats beginning at 16 months of age, while another group (OLD-CON) of rats was given water only during that period. The rats were maintained on this treatment throughout behavioral testing, which began at 22 m...
journal_title:Neurobiology of aging
pub_type: 杂志文章
doi:10.1016/0197-4580(90)90110-l
更新日期:1990-09-01 00:00:00
abstract::Recent studies have implicated increased oxidative stress in the pathogenesis of Alzheimer's disease (AD). Increased lipid peroxidation and decreased polyunsaturated fatty acid levels have been described in the brain in AD. Four-hydroxynonenal (HNE), an aldehyde product of lipid peroxidation, has been demonstrated to ...
journal_title:Neurobiology of aging
pub_type: 杂志文章
doi:10.1016/s0197-4580(98)00009-8
更新日期:1998-01-01 00:00:00
abstract::Brain-specific glutathione S-transferase Mu 3 (GSTM3) colocalizes with amyloid-beta plaques in Alzheimer's disease (AD). A functional polymorphism rs7483 in GSTM3 may contribute to the decrease in GSTM3 expression in AD. The association of the rs7483 SNP with late-onset AD and mild cognitive impairment (MCI) was evalu...
journal_title:Neurobiology of aging
pub_type: 杂志文章
doi:10.1016/j.neurobiolaging.2008.03.007
更新日期:2010-01-01 00:00:00
abstract::We assessed whether polymers of N-acetylglucosamine (GlcNAc) have any pathogenetic role in Alzheimer's disease (AD). First, by using specific dyes, we found deposits of polymers of GlcNAc in sporadic but not in familial AD. We found that neurons and microglia exposed to GlcNAc and uridine diphosphate (UDP)-GlcNAc are ...
journal_title:Neurobiology of aging
pub_type: 杂志文章
doi:10.1016/j.neurobiolaging.2014.12.033
更新日期:2015-05-01 00:00:00
abstract::The significance of amyloid beta protein, especially those ending at the 42nd residue (Abeta42), in the pathogenesis of familial Alzheimer's disease (FAD) linked to the mutations of presenilins, was examined by transfection studies using cultured cells and immunohistochemical analysis of autopsied brains. The levels o...
journal_title:Neurobiology of aging
pub_type: 杂志文章
doi:10.1016/s0197-4580(98)00027-x
更新日期:1998-01-01 00:00:00
abstract::Recently, two large, and independent genome wide association studies of late-onset Alzheimer's disease (AD) established association with the same rs11136000 variation in the clusterin (CLU) gene. In addition, one variation, rs3851179, in the phosphatidylinositol binding clathrin assembly protein (PICALM) gene and one ...
journal_title:Neurobiology of aging
pub_type: 杂志文章
doi:10.1016/j.neurobiolaging.2010.07.016
更新日期:2011-03-01 00:00:00
abstract::The observation that neurons containing neurofibrillary tangles are usually adjacent to neurons free of any morphological indication of disease, suggests the hypothesis that it is NFT-bearing neurons that are primarily responsible for the loss of function in AD. Quantitative Golgi postmortem studies from our laborator...
journal_title:Neurobiology of aging
pub_type: 杂志文章
doi:10.1016/0197-4580(95)00035-d
更新日期:1995-05-01 00:00:00
abstract::The growth hormone (GH) response to the dopamine (DA) receptor agonist, apomorphine HCl (Apo) (0.5 mg SC) was studied in young and elderly normal subjects as well as in patients with dementia of the Alzheimer type (DAT) and controls matched for age, gender and Quetelet index. The GH response was significantly decrease...
journal_title:Neurobiology of aging
pub_type: 杂志文章,评审
doi:10.1016/0197-4580(89)90055-9
更新日期:1989-05-01 00:00:00
abstract::Brain injury increases the risk of Alzheimer's disease (AD) through unknown mechanisms. We studied deposition of amyloid-beta protein (Abeta) in cells exposed to transforming growth factor beta1 (TGFbeta1), a cytokine that regulates cell metabolism during brain injury, and apolipoproteinE (apoE), the major lipid trans...
journal_title:Neurobiology of aging
pub_type: 杂志文章
doi:10.1016/s0197-4580(02)00095-7
更新日期:2003-03-01 00:00:00
abstract::Whole-exome sequencing recently identified a homozygous truncating mutation in Synaptojanin 1 (SYNJ1, PARK20), p.Arg258Gln, in 2 independent families with autosomal recessive young-onset parkinsonism with seizures and cognitive decline. This mutation's role in typical Parkinson's disease (PD) is unclear. We sequenced ...
journal_title:Neurobiology of aging
pub_type: 杂志文章
doi:10.1016/j.neurobiolaging.2015.06.009
更新日期:2015-10-01 00:00:00
abstract::GRN mutations are frequent causes of familial frontotemporal degeneration. Although there is no clear consensual threshold, plasma progranulin levels represent an efficient biomarker for predicting GRN mutations when decreased. We evaluated plasma levels to determine whether it could also predict age at onset, clinica...
journal_title:Neurobiology of aging
pub_type: 杂志文章
doi:10.1016/j.neurobiolaging.2020.02.014
更新日期:2020-07-01 00:00:00
abstract::Neurokinin B and its cognate neurokinin-3 receptor are expressed more in the forebrain than in brain stem structures but little is known about the primary function of this peptide system in the central processing of information. In general, few studies have specifically addressed age-related changes of tachykinins, no...
journal_title:Neurobiology of aging
pub_type: 杂志文章
doi:10.1016/s0197-4580(99)00019-6
更新日期:1999-01-01 00:00:00
abstract::Although the neurodevelopment of empathy from childhood to adolescence has been documented, no study has yet examined it across a life span aging perspective. Sixty-five healthy participants from 3 age groups (young, middle-aged, old) underwent functional magnetic resonance imaging while presented with visual stimuli ...
journal_title:Neurobiology of aging
pub_type: 杂志文章
doi:10.1016/j.neurobiolaging.2013.10.080
更新日期:2014-04-01 00:00:00
abstract::The Tachykinin Receptor 2 (TACR2) located at chromosome 10q21.3 belongs to a class of receptors that bind members of the tachykinin neurotransmitter family. The TACR2 binds neurokinin A, also known as substance K, and is expressed in distinct parts of the human brain. Functionally, the TACR2 has been implicated in str...
journal_title:Neurobiology of aging
pub_type: 杂志文章
doi:10.1016/j.neurobiolaging.2009.03.007
更新日期:2011-03-01 00:00:00