Abstract：
:An age-related increase in stimulation-evoked fractional norepinephrine release has been demonstrated in tail artery of Fischer-344 rats from 6 to 20 months of age. Previous studies have ruled out alterations in function of uptake mechanisms, metabolism, or feedback via prejunctional alpha-2 adrenoceptors, suggesting that an age-related decline in calcium homeostasis may be responsible. To test this possibility, stimulation-evoked fractional norepinephrine release from perivascular adrenergic nerves of rat tail arteries in the presence of a blocker of mitochondrial calcium uptake, dinitrophenol (100 microM), was measured using HPLC with electrochemical detection. When the mitochondrial proton gradient was dissipated by dinitrophenol, tail arteries from 20-month-old animals showed a marked increase in stimulation-evoked norepinephrine release whereas arteries from 6-month-old animals were not affected. One hypothesis is that the inhibition of mitochondrial calcium uptake in the adrenergic nerves from older animals resulted in an elevated intracellular calcium level. In agreement with this idea, when extracellular calcium was raised from 1.6 to 5 mM, stimulation-evoked norepinephrine release was increased in the 6-month tail arteries in the presence of dinitrophenol. These data suggest that there may be a decline in calcium regulation in older nerves leading to increased norepinephrine release with advancing age.
journal_name
Neurobiol Agingjournal_title
Neurobiology of agingauthors
Tsai H,Duckles SP,Buchholz Jdoi
10.1016/0197-4580(95)00054-isubject
Has Abstractpub_date
1995-09-01 00:00:00pages
773-7issue
5eissn
0197-4580issn
1558-1497pii
019745809500054Ijournal_volume
16pub_type
杂志文章abstract：:Although it was suggested that gangliosides play an important role in the binding of amyloid fragments to neuronal cells, the exact role of gangliosides in Alzheimer's disease (AD) pathology remains unclear. To understand the role of gangliosides in AD pathology in vivo, we crossed st3gal5-deficient (ST3-/-) mice that...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2019.01.020
更新日期：2019-05-01 00:00:00
abstract：:In patients with Alzheimer's disease (AD), postmortem and imaging studies have revealed early and prominent reductions in cerebral serotonin 2A (5-HT(2A)) receptors. To establish if this was due to a selective disease process of the serotonin system, we investigated the cerebral 5-HT(2A) receptor and the serotonin tra...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2010.03.023
更新日期：2012-03-01 00:00:00
abstract：:Calcium-binding proteins play potentially important roles in neurogenesis and neuroprotective mechanism(s). Some evidence exists that brain calbindin-D28K (CALB) is regulated by androgens. In the present study, calretinin (CALRET) and CALB patterns were determined by Western analysis in the medial basal hypothalamus (...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/s0197-4580(98)00060-8
更新日期：1998-05-01 00:00:00
abstract：:The substantia innominata (SI) contains the nucleus basalis of Meynert, which provides the major cholinergic innervation to the entire cortical mantel and the amygdala; degeneration of nucleus basalis neurons correlates with cognitive decline in Alzheimer's disease (AD). However, whether SI atrophy occurs in individua...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2009.11.006
更新日期：2011-10-01 00:00:00
abstract：:Glycogen synthase kinase-3β (GSK3B) and cyclin-dependent kinase 5 (CDK5) are the 2 major protein kinases involved in abnormal phosphorylation of tau. To determine their potential role in the pathogenesis of Parkinson's disease (PD) we analyzed 2 functional single nucleotide polymorphisms (SNPs) of GSK3B (rs334558 and ...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2010.10.016
更新日期：2012-07-01 00:00:00
abstract：:Previously, we demonstrated that plasticity of frontal cortex is altered in aging rats: 3 months after surgery, excitotoxic lesions of the nucleus basalis magnocellularis (NBM) produce larger declines in dendritic morphology in frontal cortex of aged rats relative to young adults. To determine whether the differential...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2003.08.003
更新日期：2004-08-01 00:00:00
abstract：:Humans carrying the prevalent rs9939609 A allele of the fat mass and obesity-associated (FTO) gene are more susceptible to developing obesity than noncarries. Recently, polymorphisms in the FTO gene of elderly subjects have also been linked to a reduced volume in the frontal lobe as well as increased risk for incident...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2011.02.006
更新日期：2011-06-01 00:00:00
abstract：:The relationship between the neurofibrillary tangles and the intellectual deficit observed in senile dementia of the Alzheimer type was studied in 27 patients over the age of 75. The presence and density of tau positive tangles were assessed in six areas including limbic, paralimbic, and isocortical cortices. In the i...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/s0197-4580(97)80306-5
更新日期：1997-05-01 00:00:00
abstract：:The visual processing of complex motion is impaired in Alzheimer's disease (AD). However, it is unclear whether these impairments are biased toward the motion stream or part of a general disruption of global visual processing, given some reports of impaired static form processing in AD. Here, for the first time, we di...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2017.03.004
更新日期：2017-08-01 00:00:00
abstract：:Amyloid plaques are a characteristic feature in Alzheimer's disease (AD). A novel non-toxic contrast agent is presented, Gd-DTPA-K6Abeta1-30, which is homologous to Abeta, and allows plaque detection in vivo. microMRI was performed on AD model mice and controls prior to and following intracarotid injection with Gd-DTP...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2006.12.018
更新日期：2008-06-01 00:00:00
abstract：:The levels of tau phosphorylation differ between sexes in Alzheimer's disease (AD). Transcriptome-wide associations of sex by disease interaction could indicate whether specific genes underlie sex differences in tau pathology; however, no such study has been reported yet. We report the first analysis of the effect of ...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2020.08.020
更新日期：2020-12-01 00:00:00
abstract：:Cell culture systems for evaluating the biological effects of the beta-amyloid protein are potentially important tools in the study of the pathogenesis of Alzheimer's disease. In this report, methodological considerations in the assessment of beta-amyloid neurotoxicity are discussed. Chronic incubation of beta 1-40 in...
journal_title：Neurobiology of aging
pub_type： 杂志文章,评审
doi：10.1016/0197-4580(92)90065-6
更新日期：1992-09-01 00:00:00
abstract：:Pathologic expansion of the G4C2 repeat in C9orf72 is the main genetic cause of frontotemporal dementia (FTD) and amyotrophic lateral sclerosis (ALS). To evaluate the frequency of the G4C2 expansion in a Latin American cohort of FTD and ALS patients, we used a 2-step genotyping strategy. For FTD, we observed an overal...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2016.02.001
更新日期：2016-04-01 00:00:00
abstract：:We evaluated young (3-4 months) and aged (22-24 months) male Sprague-Dawley rats in an attentional set-shifting procedure that assessed reversal, intradimensional shift (IDS), and extradimensional shift (EDS) discrimination learning tasks within one test session. These aspects of discrimination learning are sensitive ...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2006.10.005
更新日期：2008-02-01 00:00:00
abstract：:Changes in regional cerebral blood flow (rCBF) associated with a face-matching task were examined using positron emission tomography (PET) and H2(15)O in 7 patients with mild-moderate dementia of the Alzheimer type (DAT) and in 8 healthy age-matched controls. rCBF was normalized to whole brain flow and pixel-by-pixel ...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/0197-4580(93)90018-7
更新日期：1993-01-01 00:00:00
abstract：:Evidence accumulates suggesting a complex interplay between neurodegenerative processes and serotonergic neurotransmission. We have previously reported an overexpression of serotonin 5-HT1A receptors (5-HT(1A)R) after intrahippocampal injections of amyloid-beta 1-40 (Aβ40) fibrils in rats. This serotonergic reactivity...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2015.12.008
更新日期：2016-04-01 00:00:00
abstract：:Alzheimer's disease (AD) and dementia with Lewy bodies (DLB) are the 2 most common causes of dementia. We compared the regional metabolism on 18F-fluorodeoxyglucose positron emission tomography (PET) among 21 control subjects and cognitively impaired patients due to DLB (N = 63) and AD (N = 38). All participants under...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2019.10.020
更新日期：2020-03-01 00:00:00
abstract：:Neuroinflammation is thought to play a pathogenic role in many neurodegenerative disorders including amyotrophic lateral sclerosis (ALS). In this study we demonstrate that the expression of nitric oxide (NO) synthase-2 (NOS2), and cyclooxygenase (COX)-2 induced by lipopolysaccharide (LPS) with interferon-γ is higher i...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2011.09.019
更新日期：2012-09-01 00:00:00
abstract：:The first hypothesis free genome wide association study on cognition recently revealed the thus far unknown association of a single nucleotide polymorphism (SNP) of the KIBRA gene with episodic memory in healthy young and middle aged volunteers. Here, we report the first independent replication of this finding in an i...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2007.02.001
更新日期：2008-07-01 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：:Extracellular deposit of amyloid beta (Aβ) is a common pathologic feature in both age-related macular degeneration (AMD) and Alzheimer's disease, but the role of intracellular Aβ on the tight junction of the retinal pigment epithelium (RPE) is unknown. In this study, we investigated the intracellular Aβ expression and...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2014.03.008
更新日期：2014-09-01 00:00:00
abstract：:Cerebral A(1) adenosine receptors (A(1)AR) fulfill important neuromodulatory and homeostatic functions. The present study examines possible age-related A(1)AR changes in living humans by positron emission tomography (PET) and the A(1)AR ligand [(18)F]CPFPX. Thirty-six healthy volunteers aged 22-74 years were included....
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2006.08.005
更新日期：2007-12-01 00:00:00
abstract：:Oxidative stress is considered to be a major contributor to age-related hearing loss (ARHL). Here, we investigated whether pomegranate peel extract (PPE) protected against hearing loss by decreased oxidative stress in the cochlea of D-galactose-induced accelerated aging mice. The aging mice exhibited an increase in he...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2017.07.007
更新日期：2017-11-01 00:00:00
abstract：:Activated microglia are instrumental to neurodegeneration in Parkinson's disease (PD). Fractalkine, as an exclusive ligand for CX3CR1 expressed on microglia, has recently been reported to be released out by neurons, and induce microglial activation as a neuron-to-glia signal in the spinal cord. However, the role of fr...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2009.03.004
更新日期：2011-03-01 00:00:00
abstract：:The supraoptic nucleus of the F344 rat shows an age-related dendritic regression. In order to determine whether this previously observed dendritic regression may have been related to extrinsic (to the cell) hormonal, neurotoxic, or other circulating factors unique to the hypothalamus of older brains, we conducted a qu...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/0197-4580(85)90051-x
更新日期：1985-10-01 00:00:00
abstract：:Amyloid beta (Aβ) deposition and cognitive decline are key features of Alzheimer's disease. The relationship between Aβ status and changes in neuronal function over time, however, remains unclear. We evaluated the effect of baseline Aβ status on reference region spontaneous brain activity (SBA-rr) using resting-state ...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2018.10.002
更新日期：2019-02-01 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：:The total number of the neuromelanin-containing neurons of the nucleus coeruleus was determined by means of a newly developed unbiased stereological counting scheme and a low-cost apparative set-up. The individuals (n = 20, age from 49-98 years) included in this study were carefully examined for absence of neurologica...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/s0197-4580(97)00034-1
更新日期：1997-07-01 00:00:00
abstract：:The hippocampal perforant pathway originates in the entorhinal cortex (ERC) and terminates in the outer molecular layer of the dentate gyrus (DG). To compare the effects of normal aging and Alzheimer's disease (AD) on the elements of the perforant pathway, we compared relative perikaryal numbers (determined by countin...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/0197-4580(92)90115-e
更新日期：1992-05-01 00:00:00
abstract：:There is a marked increase with advancing age of stimulation-evoked neurotransmitter release from vascular adrenergic nerves in the rat, an effect correlated with increased levels of plasma norepinephrine. This increase in norepinephrine release could not be accounted for by an alteration in neuronal and extraneuronal...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/s0197-4580(96)00179-0
更新日期：1996-11-01 00:00:00
