Abstract：
:In the present study, using RNA gel-blot analysis, we characterized the developmental changes in the prevalence of mRNA coding for fibronectin (FN), glial fibrillary acidic protein (GFAP), neurotrophic protein S100 beta, and beta-actin mRNA in rat hippocampus and forebrain from 1 to 720 days of age. We found that the FN and mRNA containing the V segment (FN-V) was relatively abundant at early postnatal stages, but very few transcripts were detected in adult rats. However, the hybridization signal for the juvenile FN-V mRNA was up to approximately 8-fold increased in some but not all 24-versus 6-month-old rats. Also, GFAP and S100 beta transcripts were faintly expressed at an early developmental stage, then the level of expression steadily increased starting with day 21. The greatest increase averages approximately 1.8-fold for GFAP in 24-month-old rats, and approximately 1.5-fold for S100 beta in 15-month-old versus 6-month-old rats. As all these messages are localized primarily in astrocytes, we conclude that (a) astrocyte might play an active role in aging hippocampus and (b) an increase in S100 beta and GFAP mRNA expression may precede that for FN-V mRNA expression in a hypothetical pathway of molecular events underlying neurodegeneration in the hippocampus of old rats. We also note the considerable variability among the 24-month-old rats, suggesting that aging is an individual process.
journal_name
Exp Gerontoljournal_title
Experimental gerontologyauthors
Wagner AP,Reck G,Platt Ddoi
10.1016/0531-5565(93)90003-vsubject
Has Abstractpub_date
1993-03-01 00:00:00pages
135-43issue
2eissn
0531-5565issn
1873-6815journal_volume
28pub_type
杂志文章abstract：:Psychological stress has often been described as a feeling of being overwhelmed by the necessity of constant adjustment to an individual's changing environment. Stress affects people of all ages, but the lives of the elderly may particularly be affected. Major changes can cause anxiety leading to feelings of insecurit...
journal_title：Experimental gerontology
pub_type： 杂志文章,评审
doi：10.1016/j.exger.2014.12.003
更新日期：2015-08-01 00:00:00
abstract：:The elderly exhibit reduced responses to vaccinations, leaving them more susceptible to preventable infectious diseases such as influenza and pneumonia. It has been unclear as to the specific changes in the aging immune system that contribute to this decline, thus we have developed a mouse model to examine this phenom...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2006.10.012
更新日期：2007-05-01 00:00:00
abstract：:The present study investigated the time-course for aging-associated effects on contractile and relaxing vascular responses and nitric oxide (NO) production in the aorta from female senescence-accelerated resistant (SAMR1) and prone (SAMP8) mice. Both SAMR1 and SAMP8 were studied at three different ages: 3 (young), 6 (...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2013.08.003
更新日期：2013-11-01 00:00:00
abstract：:Young rhesus monkey females (Macaca mulatta) demonstrate the well-defined circadian rhythm in activity of erythrocyte SOD with maximum at 10.00 h and minimum at 22.00 h. However, neither GSH-Px nor GR demonstrated any significant circadian changes, contrastingly to SOD. The diurnal changes in the SOD activity tightly ...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2006.04.006
更新日期：2006-08-01 00:00:00
abstract：:Raw bioelectrical impedance analysis (BIA) data [resistance (R); reactance (Xc)] through bioelectrical impedance vector analysis (BIVA) and phase angle (PhA) have been used to evaluate cellular function and hydration status. The purpose of this investigation was to examine the effects of resistance training (RT) on cl...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2015.12.002
更新日期：2016-02-01 00:00:00
abstract：:Hospitalization may induce a decrease of muscle strength and muscle mass in older patients due to physical inactivity, malnutrition and diseases, negatively affecting health outcome. We aimed to examine the literature on change in muscle strength and muscle mass in older patients during hospitalization. A literature s...
journal_title：Experimental gerontology
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.exger.2017.03.006
更新日期：2017-06-01 00:00:00
abstract：:Adult Premature Aging Mice (PAM) show premature immunosenescence, oxidative and inflammatory stress and consequently a shorter lifespan than Exceptional Non-Prematurely Aging Mice (E-NPAM) at the same age. Indeed, adult female PAM exhibit behavioral age-related declines and abnormalities in its brain neurochemistry. N...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2020.111224
更新日期：2020-12-31 00:00:00
abstract：OBJECTIVES:The present study investigated whether the performance on executive function tasks of patients with type 2 diabetes mellitus (T2DM) is as impaired as that of Alzheimer's disease (AD) patients and to compare their performance with that of a group of cognitively healthy older adults. We also investigated wheth...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2016.07.013
更新日期：2016-10-01 00:00:00
abstract：:Average life expectancy at birth is a rough measure of the span of healthy, productive life--the functional life span. In the developed countries average life expectancies at birth now range from 76-79 years, six to nine years less than the limit of about 85 years imposed by aging. Aging is the accumulation of changes...
journal_title：Experimental gerontology
pub_type： 杂志文章,评审
doi：10.1016/s0531-5565(97)00059-4
更新日期：1998-01-01 00:00:00
abstract：:Aging is associated with a change in membrane composition that includes a decrease in membrane polyunsaturated fatty acids, including arachidonic acid, and an increase in membrane cholesterol. Alterations in membrane structure are likely to impact on transmitter release, which relies on the fusion of synaptic plasma a...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/s0531-5565(97)00130-7
更新日期：1998-06-01 00:00:00
abstract：:The intrinsic contractile properties of papillary muscles isolated from female Wistar rats during post-natal development were examined. In addition, the myocardial responsiveness to certain inotropic interventions was studied. In muscles from 60-day-old animals, the velocity of shortening was markedly greater than mus...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/0531-5565(82)90025-0
更新日期：1982-01-01 00:00:00
abstract：:We investigated the telomere lengths of individual cell types in lingual mucosa using an improved tissue quantitative fluorescence in situ hybridization (Q-FISH) method. Our tissue Q-FISH method compensates for partially cut nuclei in a tissue section by using the telomere:centromere ratio (TCR). We normalized our TCR...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2008.06.001
更新日期：2008-09-01 00:00:00
abstract：:MCP-1 and RANTES are molecules that regulate monocyte and T-lymphocyte recruitment towards sites of inflammation. We sought to evaluate the role of these chemokines in Alzheimer's disease (AD), and the effect of acetylcholinesterase inhibitor (AchEI) therapy on their release from peripheral blood mononuclear cells (PB...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2005.04.007
更新日期：2005-07-01 00:00:00
abstract：:Currently, there is little doubt that the immune system plays a role in the neurodegenerative process in Alzheimer's disease (AD). Inflammatory proteins such as complement components, enzymes, eicosanoids, and cytokines are found in association with cerebral amyloid plaques and may exacerbate the fundamental pathology...
journal_title：Experimental gerontology
pub_type： 杂志文章,评审
doi：10.1016/s0531-5565(98)00028-x
更新日期：1998-11-01 00:00:00
abstract：:Several studies have shown that centenarians have better cardiovascular risk profiles compared to younger old people. Some reports have revealed that cardiovascular diseases (i.e. hypertension, diabetes, angina and/or myocardial infarction) are less common in centenarians respect to 70 and 80 years old persons. In ord...
journal_title：Experimental gerontology
pub_type： 杂志文章,评审
doi：10.1016/j.exger.2007.06.009
更新日期：2008-02-01 00:00:00
abstract：:The purpose of this study was to examine the effect of a mentally fatiguing task on postural responses to unexpected backward perturbations in sixteen young and sixteen older women. Postural responses were characterized by center of pressure (COP) displacement, corrective COP peak velocity, and electromyography (EMG) ...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2020.110840
更新日期：2020-04-01 00:00:00
abstract：:Despite general belief that the mechanical properties of bone material contribute to whole bone strength, it is still obscure what the age effects are on mechanical behavior of the bone material, particularly in the case of the femoral neck trabeculae. In this study, atomic force microscopy was used for imaging and me...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2011.11.011
更新日期：2012-02-01 00:00:00
abstract：:Cardiovascular disease (CVD) is an important public health problem affecting especially the elderly. Over the past 20years, an increasing number of studies have examined its underlying pathophysiological mechanisms and new therapies are continually being discovered. However, despite considerable progress in CVD manage...
journal_title：Experimental gerontology
pub_type： 杂志文章,评审
doi：10.1016/j.exger.2017.10.016
更新日期：2017-12-15 00:00:00
abstract：:The dependent elderly are widely considered to be at higher risk of nutritional problems. Suboptimal micronutrient intake might put the elderly, especially those living in nursing homes, at high risk of morbidity. So far, no public authority, except for the Israel Ministry of Health, has issued particular recommendati...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2016.09.009
更新日期：2016-11-01 00:00:00
abstract：OBJECTIVE:The contribution of the A3243G mutation in mitochondria DNA (mtDNA) to diabetes mellitus (DM) in Werner's syndrome (WS) was studied. PATIENTS AND METHOD:DNA samples from peripheral white blood cells (WBCs) originating from 24 Japanese WS patients aged 30-56 were used. For control, 239 subjects aged 15-95 wer...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/s0531-5565(02)002090-7
更新日期：2003-03-01 00:00:00
abstract：OBJECTIVES:To examine the individual association between BMI and level of serum uric acid (SUA) among the very elderly Chinese population. METHODS:A survey was conducted on 870 long-lived subjects (aged ≥90years). Subjects were divided into four groups according to quartile of BMI (<16.6, 16.6-18.9, 18.9-21.1, ≥21.1kg...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2012.05.008
更新日期：2012-08-01 00:00:00
abstract：:Plantar-flexor muscles are key muscles in the control of postural sway. Older fallers present lower maximal plantar-flexor performance than older non-fallers; however, the mechanisms underlying this motor impairment remain to be elucidated. This study aimed to determine whether muscular and neural factors are both inv...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2018.09.011
更新日期：2018-10-02 00:00:00
abstract：:Apolipoprotein E knockout (apoE-KO) mice have been utilized for decades as a model of atherosclerosis. However, in addition to atherosclerosis, apoE-KO mice develop extensive cutaneous xanthomatosis, accelerated skin aging and frailty when fed a high fat diet. Granzyme B (GrB) is a pro-apoptotic serine protease that h...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2011.02.004
更新日期：2011-06-01 00:00:00
abstract：BACKGROUND:Hyaline articular cartilage, which protects the bones of diarthrodial joints from forces associated with load bearing, frictions, and impacts has very limited capacities for self-repair. Over the years, the trend of treatments has shifted to regenerations and researchers have been on the quest for a lasting ...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2018.01.020
更新日期：2018-04-01 00:00:00
abstract：:Osteoporosis is extremely frequent in post-menopausal women; nevertheless, osteoporosis in men is also a severe and frequently occurring but often underestimated disease. Increasing evidence links bone loss in male idiopathic osteoporosis and age related osteoporosis to osteoblast dysfunction rather than increased ost...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2014.05.014
更新日期：2014-09-01 00:00:00
abstract：:Coenzyme Q10 supplementation increases life-span of rats fed on a diet enriched with polyunsaturated fatty acids (Quiles, J.L., Ochoa, J.J., Huertas, J.R., Mataix, J., 2004b. Coenzyme Q supplementation protects from age-related DNA double-strand breaks and increased lifespan in rats fed on a PUFA-rich diet. Exp. Geron...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2005.07.003
更新日期：2005-08-01 00:00:00
abstract：:The age-dependent modifications of both basal and lymphokine-induced natural killer (NK) activity were analyzed in Balb/c inbred mice by measuring either the percentage of specific lytic activity in a 51 Cr release assay or the percentage of cells capable of binding the YAC-1 target cells. The basal lytic activity of ...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/0531-5565(89)90014-4
更新日期：1989-01-01 00:00:00
abstract：:Pioglitazone (Piog) activates peroxisome proliferator activated receptor-γ (PPARγ) and is widely used in clinic for the treatment of diabetes mellitus. PPARγ in various tissues has the essential regulatory role of multiple metabolic function, suggest that PPARγ signaling may contribute to aging processes. However, lit...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2017.12.002
更新日期：2018-02-01 00:00:00
abstract：:The essentiality of zinc for humans was recognized only 40 years ago. Zinc deficiency was suspected to occur in Iranian patients with growth retardation, hypogonadism in males, hepato-splenomegaly, rough and dry skin, geophagia and severe iron deficiency anemia. Later we documented zinc deficiency in similar patients ...
journal_title：Experimental gerontology
pub_type： 杂志文章,评审
doi：10.1016/j.exger.2007.10.013
更新日期：2008-05-01 00:00:00
abstract：:Lipids constitute a significant group of biological metabolites and the building blocks of all cell membranes. The abundance and stoichiometries of different lipid species are known to vary across the lifespan and metabolic state, yet the functional effects of these changes have been challenging to understand. Here we...
journal_title：Experimental gerontology
pub_type： 杂志文章,评审
doi：10.1016/j.exger.2019.110817
更新日期：2020-03-01 00:00:00
