Abstract：
:Primary cultures of hepatocytes are widely used to investigate liver function, but this technology has not been exploited fully in the study of ageing and caloric restriction (CR). Hepatocytes were isolated from adult and aged, fully fed, and calorie restricted male Sprague-Dawley rats and their viability and biochemical status assessed over 48h in primary culture. The in vivo differences in cellular protein and DNA content due to age and CR were maintained over the 48h experimental period. The results of this study confirm earlier reports that protein synthesis and degradation rates decline with age in liver tissue, and this decline is retarded by CR. Rates of protein synthesis and degradation in the first year of life were depressed in response to CR feeding and were only significantly higher than recorded for control animals during the second year of life. Cells from rats of both ages and diets maintained linear rates of extracellular protein synthesis, intracellular protein synthesis, protein degradation and albumin secretion between 24 and 48h in culture. These findings indicate that hepatocytes from CR rats did not respond adversely to the relatively rich culture medium and cells from CR animals did not immediately revert to the fully fed phenotype.
journal_name
Exp Gerontoljournal_title
Experimental gerontologyauthors
Lambert AJ,Merry BJdoi
10.1016/s0531-5565(00)00101-7keywords:
subject
Has Abstractpub_date
2000-08-01 00:00:00pages
583-94issue
5eissn
0531-5565issn
1873-6815pii
S0531-5565(00)00101-7journal_volume
35pub_type
杂志文章abstract：:Perimenopause is a period in a woman's life that precedes menopause and is characterized by hormonal changes that result in increased oxidative stress. Since oxidative stress is associated with age-related diseases and perimenopausal symptoms including somato-vegetative manifestations, nutritional antioxidant suppleme...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2017.01.011
更新日期：2017-04-01 00:00:00
abstract：OBJECTIVE:To compare body composition as assessed by conventional and vector bioelectrical impedance analysis according to the nutritional cataloging using body mass index (BMI) in a group of institutionalized elderly. METHODS:Cross-sectional study in 38 institutionalized elderly. Body composition was estimated by bio...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2016.10.002
更新日期：2016-12-01 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：:Age-related hearing loss (AHL) is a progressive neurodegenerative disease that is largely silent in its initial stages. There is no sensitive blood biomarker for diagnosis or early detection of AHL. MicroRNAs (miRNAs or miRs) are abundant and highly stable in blood, and have been recently described as powerful circula...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2016.01.009
更新日期：2016-04-01 00:00:00
abstract：BACKGROUND:Resistance exercise training (RET) has proven effective at reducing the risk of chronic disease in older populations, and it appears to regulate redox homeostasis. AIMS:To determine the effects of RET on redox homeostasis in older people. STUDY DESIGN:A systematic review and meta-analysis of randomized cli...
journal_title：Experimental gerontology
pub_type： 杂志文章,评审
doi：10.1016/j.exger.2020.111012
更新日期：2020-09-01 00:00:00
abstract：:There are three general categories of causes of the cognitive decline associated with aging: disuse, disease, and aging per se. People tend to use certain skills or abilities less with age and, thus, those skills decline due to the disuse. Physical illnesses tend to increase with age, which will tend to compromise cog...
journal_title：Experimental gerontology
pub_type： 杂志文章,评审
doi：10.1016/0531-5565(94)00066-c
更新日期：1995-05-01 00:00:00
abstract：:Aging is associated with diminished regenerative capacity and increased risk of chronic diseases. There is now compelling evidence suggests that aging process is reversible. Besides metabolic modification and systematic factors, both senescence elimination and cellular reprogramming showed beneficial effects on tissue...
journal_title：Experimental gerontology
pub_type： 杂志文章,评审
doi：10.1016/j.exger.2020.111005
更新日期：2020-09-01 00:00:00
abstract：:Alzheimer's disease (AD) is a neurodegenerative disorder characterized by accumulation of aggregated forms of the 40- and 42-amino acid Abeta peptides (Abeta40 and Abeta42). Estrogen replacement therapy (ERT) in postmenopausal women is associated with decreased risk for AD and/or delay in disease onset. The mechanism ...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/s0531-5565(00)00157-1
更新日期：2000-12-01 00:00:00
abstract：INTRODUCTION:Age-related decreases in cerebral blood flow (CBF) may lead to cognitive decline, while physical activity (PA) can maintain CBF and cognition in aging. The intensity of PA needed to affect CBF in aging, and the independent effects of sedentary time on CBF are currently unknown. Moreover, research conducted...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2019.110679
更新日期：2019-10-01 00:00:00
abstract：:Prior to three months of age there is little melatonin (MLT) secretion in humans. MLT production then commences, becomes circadian, and reaches its highest nocturnal blood levels between the ages of one to three years. During the remainder of childhood, nocturnal peak levels drop progressively by 80%. In adults, these...
journal_title：Experimental gerontology
pub_type： 杂志文章,评审
doi：10.1016/s0531-5565(98)00054-0
更新日期：1998-11-01 00:00:00
abstract：:Reductive stress, which is due to a paradoxical excess of antioxidants such as reduced glutathione (GSH) and GSH-related enzymes associated with decreased oxidant levels, has emerged as a pathogenetic mechanism of myocardial damage in pathological conditions such as protein aggregation cardiomyopathy. Notably, in the ...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2020.110871
更新日期：2020-02-06 00:00:00
abstract：:Aging in Brown Norway rats is accompanied by the reduced production of testosterone by the Leydig cells, the testicular cells responsible for synthesizing and secreting this essential steroid. As yet, the mechanism by which Leydig cell steroidogenesis is reduced is unknown. Herein we assess the production of mitochond...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/s0531-5565(01)00118-8
更新日期：2001-08-01 00:00:00
abstract：:The purpose of this study was to examine the relative contributions of changes in muscle quality and body composition to changes in lower-extremity physical function (LEPF) following a 6-month exercise and weight loss intervention in overweight and obese older women. Thirty-eight overweight and obese (BMI = 30.0 ± 4.4...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2018.04.011
更新日期：2018-07-15 00:00:00
abstract：:Several papers reported in recent years on a change in the age population distribution of the circulating erythrocytes in old mice, rats, rabbits, and humans. The results indicate the presence of a chronologically younger cell population in old animals and humans. The cells are typically lower in density and larger. I...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/0531-5565(92)90055-5
更新日期：1992-01-01 00:00:00
abstract：:Engineering of fetal tissue has a high potential for the treatment of acute and chronic wounds of the skin in humans as these cells have high expansion capacity under simple culture conditions and one organ donation can produce Master Cell Banks which can fabricate over 900 million biological bandages (9 x 12cm). In a...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2008.11.004
更新日期：2009-03-01 00:00:00
abstract：:Estrogens are potent and efficacious neuroprotectants both in vitro and in vivo in a variety of models of neurotoxicity. We determined the structural requirements for neuroprotection in an in vitro assay using a panel of >70 novel estratrienes, synthesized to reduce or eliminate estrogen receptor (ER) binding. We obse...
journal_title：Experimental gerontology
pub_type： 杂志文章,评审
doi：10.1016/j.exger.2016.10.013
更新日期：2017-08-01 00:00:00
abstract：:The accuracy of protein synthesis has been measured in extracts from human diploid fibroblasts of different ages. Extracts were supplied with purified mRNA for the coat protein of the cowpea variant of tobacco mosaic virus (CcTMV), which lacks codons for cysteine and methionine. The presence of 35S-cysteine in CcTMV c...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/0531-5565(89)90022-3
更新日期：1989-01-01 00:00:00
abstract：:Accumulation of oxidative stress-induced damage in brain tissue plays an important role in the pathogenesis of normal aging and neurodegenerative diseases. Neuronal oxidative damage typically increases with age in humans, and also in the invertebrate and vertebrate model species most commonly used in aging research. B...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2006.08.004
更新日期：2006-11-01 00:00:00
abstract：:Women who seek medical care around the time of menopause frequently report changes in one or more aspects of psychological functioning. The etiology of these symptoms is likely multifactorial and, undoubtedly, individual and sociocultural factors are important determinants. The known psychotropic properties of the sex...
journal_title：Experimental gerontology
pub_type： 杂志文章,评审
doi：10.1016/0531-5565(94)90021-3
更新日期：1994-05-01 00:00:00
abstract：:Alpha-synuclein (α-Syn) accumulation is significantly correlated with motor deficits and mitochondrial dysfunction in Parkinson's disease (PD), but the molecular mechanism underlying its pathogenesis is unclear. In this study, we investigated the effects of treadmill exercise on motor deficits and mitochondrial dysfun...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2017.01.001
更新日期：2017-03-01 00:00:00
abstract：:Apoptosis plays an important role in atrophy and sarcopenia in skeletal muscle. Recent evidence suggests that insufficient heat shock proteins (HSPs) may contribute to apoptosis and muscle wasting. In addition, long-term caloric restriction (CR) and lifelong wheel running exercise (WR) with CR provide significant prot...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2015.06.007
更新日期：2015-09-01 00:00:00
abstract：:Cardiovascular function during sleep was studied in 14 (6 males, 8 females) healthy, active, older adults (57-70) years). Noninvasive measures of stroke volume (SV), heart rate (HR), cardiac output (CO), pre-ejection period (PEP), and left ventricular ejection time (LVET) were taken using impedance cardiography and co...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/0531-5565(87)90031-3
更新日期：1987-01-01 00:00:00
abstract：:The aging process is known to be regulated by specific genes in various organisms, including yeast, the nematode C. elegans, fruitflies and mice. To explore the novel genes involved in aging process, we applied cDNA microarray technology to a replicative senescence model of human dermal fibroblasts (HDF). Eighty-four ...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2004.07.002
更新日期：2004-09-01 00:00:00
abstract：:Age-related changes in cancer mortality risk are important for understanding the processes of disease and aging interaction. The extent to which these age changes differ by sex further contributes to this understanding but has not been well studied to date. We conducted a systematic examination of dynamics and heterog...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2012.06.009
更新日期：2012-09-01 00:00:00
abstract：:Studying the changes of serum N-glycome during mouse aging is beneficial to explore the molecular basis behind the alterations reported in human. However, such studies remainscarce and lack some information such as sialylation due to the method limitation. Here, we introduced Bionic Glycome method to quantify the seru...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2020.111098
更新日期：2020-11-01 00:00:00
abstract：:Rodent animal models take at least 18months to develop aging phenotypes for researchers to investigate the mechanism of age-related metabolic complications. Senescence-accelerated mouse prone 8 (SAMP8) shortens the process of aging and may facilitate an alternative model for studying age-related insulin resistance. Th...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2017.08.023
更新日期：2017-12-01 00:00:00
abstract：:Aging is associated with changes in several metabolic pathways affecting liver function including the adaptive unfolded protein response (UPR). On the other hand, exercise training has been shown to exert beneficial effects on metabolism in the liver and exercise training has been reported to affect hepatic UPR. PGC-1...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2017.08.006
更新日期：2017-11-01 00:00:00
abstract：:Diseases of the elderly, including neurodegenerative and cardiovascular disorders and cancer, may develop through the accumulation of "hits" composed of genetic and epigenetic risk factors. The "iceberg" buildup of these hits over time may exceed the tolerance threshold of a particular tissue, thus precipitating disea...
journal_title：Experimental gerontology
pub_type： 杂志文章,评审
doi：10.1016/s0531-5565(96)00156-8
更新日期：1997-07-01 00:00:00
abstract：:The purpose of this study was to examine the combined cardiorespiratory and cerebrovascular responses to head-up tilt (HUT) in young and older trained and untrained humans following moderate-duration exercise. Middle cerebral artery blood flow velocity (MCAv; transcranial Doppler ultrasound), blood pressure (BP; Finom...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2010.06.004
更新日期：2011-01-01 00:00:00
abstract：BACKGROUND:Geriatric depression is common due to the high rate of chronic diseases suffered by the older population. There is a well-established effect of exercise on one's wellbeing, however, for the elderly females there is dearth in research addressing exercise and its effect on their neurotransmitters and depressio...
journal_title：Experimental gerontology
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.exger.2018.11.009
更新日期：2019-01-01 00:00:00
