Abstract：
:A micromethod was used to study myelin from individual rat optic nerves as a function of age. Protein and galactolipid content as well as 2',3'-cyclic nucleotide phosphohydrolase (CNPase) activity at ages 2, 4, 22, and 28 months were determined. Protein content increased significantly at 22 months and decreased at advanced age. Galactolipid content increased significantly at 28 months while CNPase activity decreased. The ratios of protein to galactolipid and CNPase to galactolipid changed with changing age. These data suggest that, unlike the central nervous system, specific biochemical parameters of the optic nerve change with age.
journal_name
Exp Gerontoljournal_title
Experimental gerontologyauthors
Jacks AS,Richardson AR,Jones MAdoi
10.1016/0531-5565(89)90013-2subject
Has Abstractpub_date
1989-01-01 00:00:00pages
219-25issue
3eissn
0531-5565issn
1873-6815journal_volume
24pub_type
杂志文章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：:The effect of aging was tested on experimental ventricular arrhythmias in isolated heart preparations from normal Wistar rats (NWR), Wistar Kyoto rats (WKY), and spontaneously hypertensive rats (SHR). Delayed afterdepolarizations and triggered activity induced by high-calcium perfusion (16 mM) in isolated papillary mu...
journal_title：Experimental gerontology
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doi：10.1016/0531-5565(90)90061-6
更新日期：1990-01-01 00:00:00
abstract：:The results of life table experiments to determine the effects of artificial impairment (leg amputation) in 7500 Drosophila melanogaster adults revealed that the extent to which life expectancy was reduced in impaired individuals was conditional on: (1) leg location and number amputated--front leg had greatest impact ...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2006.10.002
更新日期：2007-03-01 00:00:00
abstract：OBJECTIVE:Aging has been reported to be associated with changes in immune function. Although frequent infection and the development of malignancy suggest the decline of immune function with aging, changes toward proinflammatory conditions also develop at the same time. Th17 cells are well known CD4(+) T cell subpopulat...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2013.10.006
更新日期：2014-01-01 00:00:00
abstract：:Reductions in physical performance, cognitive impairment (CI) and decline (CD), are common in older age, but few prospective cohort studies have considered the relationship between these domains. In this study we investigated whether reduced physical performance and low handgrip/lower limbs strength, could predict a h...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2016.05.008
更新日期：2016-08-01 00:00:00
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journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/0531-5565(87)90048-9
更新日期：1987-01-01 00:00:00
abstract：:Senescence accelerated mice (SAM) are susceptible to developing vascular dysfunction and remodeling. Food intake and type of diet have also been identified as determining factors in vascular remodeling. However, the interplay between senescence and diet in vascular remodeling is largely unknown. We aimed to analyze st...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2014.03.004
更新日期：2014-07-01 00:00:00
abstract：:Histological surveys of the hearts of guppies Poecilia reticulatus throughout their lifespan showed no aging changes until the fish were three years old. In younger fishes the hearts were healthy, even in three individuals with "wasting" disease, where there was considerable loss of muscle throughout the body. There w...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/0531-5565(84)90048-2
更新日期：1984-01-01 00:00:00
abstract：PURPOSE:The elderly lose skeletal muscle mass with age, which may be detrimental for function and quality of life. Both inactivity and heavy resistance exercise are known to have marked but opposite effects upon muscle mass. However, the potential effects of daily physical activity upon muscle protein synthesis (MPS) a...
journal_title：Experimental gerontology
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.exger.2016.03.008
更新日期：2016-06-15 00:00:00
abstract：:Reactive oxygen species (ROS) are formed in all living organisms as a by-product of normal metabolism (endogenous sources) and as a consequence of exposure to environmental compounds (exogenous sources). Endogenous ROS are largely formed during oxidative phosphorylation in the mitochondria and, therefore, mitochondria...
journal_title：Experimental gerontology
pub_type： 杂志文章,评审
doi：10.1016/s0531-5565(02)00142-0
更新日期：2002-10-01 00:00:00
abstract：BACKGROUND:Critically ill intensive care patients are subjected to controlled mechanical ventilation (CMV) which has an important association in triggering the impaired muscle function and the consequent delayed weaning from the respirator. AIM:The main aim of this study was to measure the effects of age and CMV over ...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2014.06.017
更新日期：2014-11-01 00:00:00
abstract：:The Tokyo Metropolitan Institute of Gerontology (TMIG) celebrates its 30th anniversary in 2002. Since its establishment, TMIG has been carrying out inter-disciplinary research on aging as a core institute in Japan and functions as a knowledge bank and a source for capable researchers of gerontology. The proportion of ...
journal_title：Experimental gerontology
pub_type： 杂志文章,评审
doi：10.1016/s0531-5565(02)00169-9
更新日期：2002-12-01 00:00:00
abstract：:Dietary restriction (DR) has multiple and essential effects in protecting against DNA damage in model organisms. Persistent DNA damage plays a central role in the process of aging. Senescence-associated secretory phenotype (SASP), as a product of cellular aging, can accelerate the process of cellular senescence as a f...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2017.09.005
更新日期：2018-07-01 00:00:00
abstract：:The cold-induced enhancement of non-shivering thermogenesis (NST), involving brown-adipose tissue (BAT) metabolism, could participate to impair energy balance in the aged gray mouse lemur (Microcebus murinus). We first investigated the age-related modulations of cold-stimulated BAT cell morphology and contents. Then, ...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2010.03.013
更新日期：2010-06-01 00:00:00
abstract：:Aged traumatic brain injury (TBI) patients suffer higher rates of mortality and disability than younger patients. Cognitive problems common to TBI patients are associated with damage to the hippocampus, a central locus of learning and memory. To investigate the molecular mechanisms of age-related vulnerability to brai...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2006.07.006
更新日期：2006-11-01 00:00:00
abstract：:A mathematical model of cellular metabolism is used to relate the rates of cell division and waste production to the concentrations of oxygen and glucose in the medium in which a normal diploid cell culture is grown. The metabolic model in tandem with an earlier waste-content model based on the waste-product theory of...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/0531-5565(91)90073-u
更新日期：1991-01-01 00:00:00
abstract：:To determine whether age-related differences in body weight loss in hyperthyroidism could be related to caloric intake, the body weight and food consumption of Fischer 344 male rats were monitored every other day for four weeks. Six-month-old (young) rats were compared to 16-month-old rats (intermediate age) and 25-mo...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/0531-5565(90)90006-n
更新日期：1990-01-01 00:00:00
abstract：:The effects of long-term treatment with both antioxidants and a program of behavioral enrichment were studied as part of a longitudinal investigation of cognitive aging in beagle dogs. Baseline performance on a battery of cognitive tests was used to assign 48 aged dogs (9-12 years) into four cognitively equivalent gro...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2004.01.007
更新日期：2004-05-01 00:00:00
abstract：:A revolution has occurred in the attitude of biologists toward their intellectual property rights. What today is patentable and highly profitable was, 20 years ago, unpatentable and given away for nothing. The history of this revolution began in the early 1960s when we made the first effort to have self-duplicating ce...
journal_title：Experimental gerontology
pub_type： 杂志文章,评审
doi：10.1016/s0531-5565(97)00115-0
更新日期：1998-01-01 00:00:00
abstract：:Non-insulin dependent diabetes mellitus (NIDDM) has been associated with a number of physiological consequences including neuropathy, retinopathy and incidence of vascular disease. Recently, several authors reviewed studies that suggested that NIDDM is associated with cognitive impairments leading to a higher incidenc...
journal_title：Experimental gerontology
pub_type： 杂志文章,评审
doi：10.1016/s0531-5565(03)00153-0
更新日期：2003-09-01 00:00:00
abstract：:This article addresses the description of several endocrine-related functions of the brain. It has emerged that steroids and growth factors may influence brain functions, and that brain cells may metabolize sex steroids. The crosstalk between different types of brain cells (neurons, astrocytes, the LHRH (luteinizing h...
journal_title：Experimental gerontology
pub_type： 杂志文章,评审
doi：10.1016/s0531-5565(96)00172-6
更新日期：1997-07-01 00:00:00
abstract：:Female mammals undergo natural fluctuations in sex steroid hormone levels throughout life. These fluctuations span from early development, to cyclic changes associated with the menstrual or estrous cycle and pregnancy, to marked hormone flux during perimenopause, and a final decline at reproductive senescence. While t...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2016.12.011
更新日期：2017-08-01 00:00:00
abstract：:The echidna Tachyglossus aculeatus is a monotreme mammal from Australia that is exceptionally long-living. Its documented maximum lifespan of 50 years is 3.7 times that predicted from its body mass. Other exceptionally long-living mammals (naked mole-rats and humans) are known to have peroxidation-resistant membrane c...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2008.05.015
更新日期：2008-08-01 00:00:00
abstract：:The alterations of the lipid composition and fluidity of liver plasma membranes as well as the activity of membrane-bound phospholipase A2 (EC 3.1.1.4) in male and female rats of different ages are investigated. An age-induced increase of the protein/phospholipid and cholesterol/phospholipid ratios is observed, as wel...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/0531-5565(86)90072-0
更新日期：1986-01-01 00:00:00
abstract：:Alzheimer's disease (AD) is characterized by the accumulation and aggregation of misfolded proteins. The presence of misfolded proteins in the endoplasmic reticulum (ER) triggers a cellular stress response called the unfolded protein response (UPR). Previously, we have shown that the UPR is activated in AD neurons. In...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2006.01.013
更新日期：2006-04-01 00:00:00
abstract：:Androgen levels decrease with aging in men. Androgen deficiency in elderly men may lead to asthenia, decrease in muscle mass, osteoporosis, decrease in sexual activity, and, in some cases, changes in mood and cognitive function. Combination of these factors may result in impaired quality of life in the elderly male. A...
journal_title：Experimental gerontology
pub_type： 杂志文章,评审
doi：10.1016/0531-5565(93)90069-p
更新日期：1993-07-01 00:00:00
abstract：OBJECTIVES:We explored the male-female health-survival paradox in the context of health expectancy (HE) at age 65 and thereafter, using three different morbidity measures and different severity cut-offs with and without adjustments for the share of nursing home residents. METHODS:HE at ages 65, 70, 75, 80, and 85 was ...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2020.111196
更新日期：2021-03-01 00:00:00
abstract：:Aging is associated with a reduction in the maximum density of n-methyl-d-aspartate (NMDA)-sensitive glutamate binding sites in the hippocampus of Fischer 344 rats. This study was designed to investigate the effect of acetyl-l-carnitine (ALCAR) on NMDA receptors in the old rat (24 months) after chronic or single-dose ...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/0531-5565(93)90042-c
更新日期：1993-11-01 00:00:00
abstract：:During the course of life, cyclic females face a state of midlife transition that occurs in a fully functioning neurological system, and results in reproductive senescence. The authors' hypothesis was that changes in the activity noradrenergic neurons may be one of the factors involved in this phenomenon. The aim of t...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2016.04.015
更新日期：2016-08-01 00:00:00
abstract：BACKGROUNDS:Elucidating the causal effects of common intermediate risk factors on the onset of age-related diseases is indispensable for developing prevention and intervention procedures. METHODS:We conducted two-stage time-to-event Mendelian randomization meta-analyses combining five large-scale longitudinal cohorts ...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2017.09.019
更新日期：2018-07-01 00:00:00
