Abstract：
:Although neuroactive steroids exert neuroprotective actions in different experimental models of neurodegenerative diseases, including those of Alzheimer's disease (AD), their relationships with aged related physiologic and pathologic brain changes remain to be clarified. In this study the levels of pregnenolone, dehydroepiandrosterone, progesterone, dihydroprogesterone, tetrahydroprogesterone, isopregnanolone, testosterone, dihydrotestosterone, 5α-androstane-3α,17β-diol, 5α-androstane-3β,17β-diol, 17α-estradiol, and 17β-estradiol were assessed in the limbic region of young adult (7 months) and aged (24 months) male wild type and triple transgenic AD mice. Age related neuropathological changes in AD brains, such as β-amyloid accumulation and gliosis, were associated with modified levels of specific neuroactive steroids and particularly with changes in the levels of progesterone and testosterone metabolites. The altered levels of neuroactive steroids in aged AD brains might impact on the activation of neuroprotective signaling mediated by classic and nonclassic steroid receptors, like the gamma-aminobuttyric acid (GABA)-A receptor.
journal_name
Neurobiol Agingjournal_title
Neurobiology of agingauthors
Caruso D,Barron AM,Brown MA,Abbiati F,Carrero P,Pike CJ,Garcia-Segura LM,Melcangi RCdoi
10.1016/j.neurobiolaging.2012.10.007subject
Has Abstractpub_date
2013-04-01 00:00:00pages
1080-9issue
4eissn
0197-4580issn
1558-1497pii
S0197-4580(12)00497-6journal_volume
34pub_type
杂志文章abstract：:New highly-accurate stereological methods for estimating the total numbers of neurons in brain structures have been used to test for age-related neuron loss in the human hippocampal formation. Across the age range of 13 to 85 years, there was a substantial loss of neurons in the subiculum (52%) and in the hilus of the...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/0197-4580(93)90113-p
更新日期：1993-07-01 00:00:00
abstract：:We conducted genetic analysis of the fused in sarcoma gene (FUS) in Chinese Han patients with essential tremor (ET) in a case-control association study. One hundred eighty unrelated patients with ET were screened for mutations in the coding region and exon-intron boundaries of FUS. Reverse transcriptase polymerase cha...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2013.03.001
更新日期：2013-08-01 00:00:00
abstract：:The monoamine metabolites homovanillic acid (HVA), 5-hydroxy-indoleacetic acid (5-HIAA) and 4-hydroxy-3-methoxy-phenylglycol (HMPG) were determined in lumbar cerebrospinal fluid (CSF) of 123 patients with Alzheimer's disease (AD) and 57 healthy controls. Despite CSF sampling under strictly standardized conditions, a w...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/0197-4580(92)90017-r
更新日期：1992-01-01 00:00:00
abstract：:Many elderly individuals remain dementia-free throughout their life. However, some of these individuals exhibit Alzheimer disease neuropathology on autopsy, evidenced by neurofibrillary tangles (NFTs) in AD-specific brain regions. We conducted a genome-wide association study to identify genetic mechanisms that disting...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2010.01.010
更新日期：2011-12-01 00:00:00
abstract：:We sought to describe change in cardiorespiratory (CR) fitness over 2 years in those with early-stage Alzheimer's disease (AD) and nondemented aging and assess the relationship of CR fitness with cognitive decline, brain atrophy, and dementia progression. Individuals with early-stage AD (n = 37) and without dementia (...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2011.03.016
更新日期：2012-08-01 00:00:00
abstract：:The reaction of lysine and arginine residues of proteins with 1,2-dicarbonyl compounds result in the formation of advanced glycation end products (AGEs). Accumulation of AGEs is a characteristic feature of the aging brain and contributes to the development of neurodegenerative diseases such as Alzheimer's disease (AD)...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2005.11.007
更新日期：2007-01-01 00:00:00
abstract：:We previously established a single-neuron culture system to analyze the primary effects of neurotrophic factors and reported that NGF promoted neurite extension in young adult (4- to 6-month-old) rat dorsal root ganglion (DRG) neurons by promoting neurite arborization. In this study, we demonstrated that the effects o...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/0197-4580(93)90093-q
更新日期：1993-03-01 00:00:00
abstract：:Abnormal interaction of beta-amyloid 42 (Abeta42) with copper, zinc and iron induce peptide aggregation and oxidation in Alzheimer's disease (AD). However, in health, Abeta degradation is mediated by extracellular metalloproteinases, neprilysin, insulin degrading enzyme (IDE) and matrix metalloproteinases. We investig...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2007.10.012
更新日期：2009-07-01 00:00:00
abstract：:Damaged mitochondria may be one of the earliest manifestations of Alzheimer's disease. Because oxidative phosphorylation is a primary source of neuronal energy, unlike glycolysis-dependent energy production in inflamed glia, mitochondrial respiration could provide a selective biomarker of neuronal deterioration in Alz...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2020.05.003
更新日期：2020-10-01 00:00:00
abstract：:A common analogy to aging is that of a boulder being worn down to rubble by the unremitting onslaught of time. In contrast, Swaab's "use it or lose it" concept is important because it emphasizes some positive consequences of experience. For example, early exposure to complex experience may offer some protection from "...
journal_title：Neurobiology of aging
pub_type： 评论,杂志文章
doi：10.1016/0197-4580(91)90009-9
更新日期：1991-07-01 00:00:00
abstract：:Nonhuman primates (NHPs) are useful for the study of age-associated changes in the brain as a model that is biologically closely related to humans. For example, with age, all NHPs analyzed to date, develop β-amyloid (Aβ) plaques as seen in humans. Nevertheless, it is still unclear if NHPs have human-like age-associate...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2014.01.139
更新日期：2014-07-01 00:00:00
abstract：:Aged, cognitively-impaired rats (and humans) show hypothalamic-pituitary-adrenal (HPA) hyperactivity that correlates with hippocampal damage. The resultant increase in plasma glucocorticoid exposure is thought to contribute to impaired hippocampal function and to potentiate hippocampal neuron death. In young, adult ra...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/s0197-4580(97)00103-6
更新日期：1997-09-01 00:00:00
abstract：:A promising intervention for Alzheimer's disease (AD) would ideally target key pathological factors that are involved in AD pathogenesis. Soluble factors produced by engrafted mesenchymal stem cells (MSCs) mediate potential therapeutic effects in AD. However, these therapeutic benefits are largely hampered by the limi...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2019.10.012
更新日期：2020-02-01 00:00:00
abstract：:Despite very numerous studies on Alzheimer's disease (AD), especially on amyloid plaques and neurofibrillary tangles, little information has been obtained thus on the causes of the disease. Evidence is described here that implicates firstly herpes simplex virus type 1 (HSV1) as a strong risk factor when it is present ...
journal_title：Neurobiology of aging
pub_type： 杂志文章,评审
doi：10.1016/j.neurobiolaging.2003.12.021
更新日期：2004-05-01 00:00:00
abstract：OBJECTIVE:We used positron emission tomography to evaluate cerebral glucose metabolic change in postmenopausal women in a naturalistic observational study. METHOD:Women estrogen users (n = 11) and non-users (n = 9) were studied at baseline and 2 years later. Analyses focused on glucose metabolism in regions previously...
journal_title：Neurobiology of aging
pub_type： 临床试验,杂志文章
doi：10.1016/j.neurobiolaging.2004.03.003
更新日期：2005-02-01 00:00:00
abstract：:Age-related changes in the interactive behavior of default mode network (DMN) with other resting state networks are poorly understood. We hypothesized that age would positively correlate with inter-network connectivity in late life and intellectual functioning was expected to moderate this relationship. The sample con...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2019.02.014
更新日期：2019-06-01 00:00:00
abstract：:Progranulin (GRN) is a secreted growth factor involved in various cellular functions, and loss-of-function mutations are a major cause of frontotemporal lobar degeneration (FTLD) with TDP-43 positive pathology. Most FTLD-related GRN mutations are nonsense mutations resulting in reduced GRN expression. Nonsynonymous GR...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2015.12.014
更新日期：2016-03-01 00:00:00
abstract：:The H1 MAPT haplotype in the 17q21 chromosomal region has been associated with several neurodegenerative diseases. Some reports have suggested that there is an association between genetic variants within the H1 haplotype with Parkinson's disease (PD), progressive supranuclear palsy (PSP) and corticobasal degeneration ...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2009.09.011
更新日期：2011-03-01 00:00:00
abstract：:The ability to perceive and produce speech undergoes important changes in late adulthood. The goal of the present study was to characterize functional and structural age-related differences in the cortical network that support speech perception and production, using magnetic resonance imaging, as well as the relations...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2013.02.004
更新日期：2013-08-01 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：:Parkinson's disease (PD) is a progressive neurodegenerative disease with typical motor symptoms due to the preferential loss of midbrain dopaminergic (mDA) neurons in the Substantia nigra pars compacta. Several proteins of the homeodomain family are crucial for the development of mDA neurons. These proteins remain exp...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2007.08.014
更新日期：2009-05-01 00:00:00
abstract：:The etiology of Alzheimer's disease is still unknown. Because the disease is specific for human brain, a rational search for early diagnosis or prevention is very difficult. This calls for the development of cellular models that mimick the degeneration of neurons in AD. The brains of AD patients contain markers whose ...
journal_title：Neurobiology of aging
pub_type： 杂志文章,评审
doi：10.1016/0197-4580(94)90178-3
更新日期：1994-01-01 00:00:00
abstract：:The Asp620Asn mutation in the vacuolar protein sorting protein 35 (VPS35) gene and the Arg1205His mutation in the eukaryotic translation initiation factor 4 gamma 1 (EIF4G1) gene were identified in autosomal dominant late-onset familial and sporadic Parkinson disease (PD) patients in a Caucasian population. However, t...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2012.11.003
更新日期：2013-06-01 00:00:00
abstract：:We have assessed the frequency of alpha-synuclein (SNCA) mutations in Japanese patients with familial or sporadic Parkinson's disease (PD) and surveyed their associated clinical manifestations. We screened SNCA exon 3 in 988 patients without SNCA multiplications (430 with autosomal dominant PD and 558 with sporadic PD...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2017.05.022
更新日期：2017-09-01 00:00:00
abstract：:Several genes and risk factors are associated with Parkinson's disease (PD). Although many of the genetic markers belong to a common pathway, a unifying pathogenetic mechanism is yet to be found. Also, missing heritability analyses have estimated that only part of the genetic influence contributing to PD has been foun...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2017.01.019
更新日期：2017-05-01 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：:A variety of studies have shown an effect of estrogen on dopamine function and suggest that estrogen may modulate central dopaminergic activity. Positron emission tomography (PET) and the dopamine metabolism tracer, [18F]6-fluoro-L-m-tyrosine (FMT) were used to evaluate dopaminergic function in the frontal cortex and ...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/s0197-4580(01)00323-2
更新日期：2002-05-01 00:00:00
abstract：:Alertness is fundamental for the efficiency of information processing. A person's level of alertness refers to the system's state of general responsiveness and can be temporarily increased by presenting a neutral warning cue shortly before an event occurs (Posner and Petersen, 1990). However, effects of alerts on subs...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2019.03.017
更新日期：2019-07-01 00:00:00
abstract：:Data are emerging that the altered development of adrenocortical and emotional reactivity in individuals exposed perinatally to adverse events is reflected in cognitive change and that maternal care is an important determinant. However, early trauma does not cause a generalized cognitive decline at older age, but rath...
journal_title：Neurobiology of aging
pub_type： 评论,杂志文章,评审
doi：10.1016/s0197-4580(03)00057-5
更新日期：2003-05-01 00:00:00
abstract：:The internal carotid artery termination (CAT) ends in a T-shaped bifurcation just below the substantia innominata (SI), which contains cognitively strategic cholinergic neurons and undergoes atrophy in Alzheimer's disease (AD). This study investigated whether an elongated CAT with possible resulting encroachment into ...
journal_title：Neurobiology of aging
pub_type： 杂志文章
doi：10.1016/j.neurobiolaging.2013.01.009
更新日期：2013-07-01 00:00:00
