Abstract：
:Culturing Caenorhabditis elegans in axenic medium leads to a twofold increase in lifespan and considering the similar phenotypical traits with dietary restricted animals, it is referred to as axenic dietary restriction (ADR). The free radical theory of aging has suggested a pivotal role for mitochondria in the aging process and previous findings established that culture in axenic medium increases metabolic rate. We asked whether axenic culture induces changes in mitochondrial functionality of C. elegans. We show that ADR induces increased electron transport chain (ETC) capacity, enhanced coupling efficiency and reduced leakiness of the mitochondria of young adult worms but not a decrease of ROS production capacity and in vivo H2O2 levels. The age-dependent increase in leak respiration and decrease in coupling efficiency is repressed under ADR conditions. Although ADR mitochondria experience a decrease in ETC capacity with age, they succeed to maintain highly efficient and well-coupled function compared to fully fed controls. This might be mediated by combination of a limited increase in supercomplex abundance and decreased individual CIV abundance, facilitating electron transport and ultimately leading to increased mitochondrial efficiency.
journal_name
Exp Gerontoljournal_title
Experimental gerontologyauthors
Castelein N,Muschol M,Dhondt I,Cai H,De Vos WH,Dencher NA,Braeckman BPdoi
10.1016/j.exger.2014.02.009subject
Has Abstractpub_date
2014-08-01 00:00:00pages
26-36eissn
0531-5565issn
1873-6815pii
S0531-5565(14)00057-6journal_volume
56pub_type
杂志文章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：:Although galanin has been shown to increase GLUT4 expression in the cardiac muscle of rats, there is no literature available about the effect of GalR1 on GLUT4 expression in the cardiac muscle of type 2 diabetic rats. The aim of this study was to determine whether intracerebroventricular injection of GalR1 agonist M61...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2014.11.009
更新日期：2015-05-01 00:00:00
abstract：:Degeneration of tongue muscles with aging may contribute to swallowing deficits observed in elderly people. However, the capacity for tongue muscle stem cells (SCs) to regenerate and repair the aged tongue and improve tongue strength following tongue exercise (a current clinical treatment) has never been examined. We ...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2020.111104
更新日期：2020-12-01 00:00:00
abstract：:Spectrins are a part of cytoskeletal platform that lines the intracellular side of plasma membrane, which can be proteolyzed by calcium-sensitive enzymes including calpains and caspases. Caspase-3 mediated αII-spectrin proteolysis results in the release of a 120kDa spectrin breakdown product (SBDP120), known to occur ...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2015.06.003
更新日期：2015-09-01 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：BACKGROUND:Awareness of physical ability may impact fall risk during everyday tasks. Therefore, we investigated perceived reach (PR; estimation of furthest reach distance), maximal reach (MR) and reach judgement error (RJE), and their relationships with neuropsychological and physical performance, and falls in older pe...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2018.10.020
更新日期：2018-12-01 00:00:00
abstract：:The retrograde response (RR) is a compensatory mechanism by which mutant strains of yeast are able to cope with mitochondrial DNA (mtDNA) impairments by up-regulating the expression of the stress-responder nuclear genes and significantly increasing lifespan. Starting from the observation that both mtDNA variability an...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/s0531-5565(00)00169-8
更新日期：2000-09-01 00:00:00
abstract：:Fetal and placental weights and peripheral blood progestagen concentrations were examined on days 13, 16 and 22 of gestation in young (3-5 month) nulliparous and old (9-12 month) multiparous, albino Wistar rats. There was no difference in fetal weights at any stage examined whereas placental weights were significantly...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/0531-5565(87)90004-0
更新日期：1987-01-01 00:00:00
abstract：:We studied the contractile, histological and biochemical characteristics of regenerating slow (soleus) muscles of aged rats and the effect of IGF-1 treatment on these parameters. Regenerating soleus muscles were studied 21 days after myotoxic injury. In senescent rats (24 month old), the in situ isometric maximal teta...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/s0531-5565(03)00007-x
更新日期：2003-05-01 00:00:00
abstract：OBJECTIVE:Hippocampal sclerosis of aging (HS-Aging) is a common cause of dementia in older adults. We tested the variability in cerebrospinal fluid (CSF) proteins associated with previously identified HS-Aging risk single nucleotide polymorphisms (SNPs). METHODS:Alzheimer's Disease Neuroimaging Initiative cohort (ADNI...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2017.01.025
更新日期：2017-04-01 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：:The gangliosides in human diploid fibroblasts--TIG-1, TIG-7, and IMR-90--were analysed at different cell densities at early and late passages to clarify the relationship between age and cell density dependent changes of the gangliosides. In early passages, the ganglioside concentrations increased with increase in cell...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/0531-5565(89)90030-2
更新日期：1989-01-01 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：BACKGROUND:Longitudinal studies on sleep duration and grip strength decline are limited. This study aimed to evaluate the associations of baseline sleep duration with follow-up grip strength and grip strength changeover time among a large sample of middle-aged and older Chinese. METHODS:Data from China Health and Reti...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2018.01.009
更新日期：2018-03-01 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：:The major neuroendocrine response mediating stress adaptation is activation of the hypothalamic pituitary adrenal axis, with stimulation of corticotropin releasing hormone (CRH) and vasopressin (VP) from parvocellular neurons of the hypothalamic paraventricular nucleus, leading to stimulation of pituitary ACTH secreti...
journal_title：Experimental gerontology
pub_type： 杂志文章,评审
doi：10.1016/j.exger.2010.08.023
更新日期：2011-02-01 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：:Cinnamon is a spice commonly used worldwide to flavor desserts, fruits, cereals, breads, and meats. Numerous health benefits have been attributed to its consumption, including the recent suggestion that it may decrease blood glucose levels in people with diabetes. Insulin signaling is an integral pathway regulating th...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2014.09.019
更新日期：2014-12-01 00:00:00
abstract：:Dystrophin-deficiency causes cardiomyopathies and shortens the life expectancy of Duchenne and Becker muscular dystrophy patients. Restoring Dystrophin expression in the heart by gene transfer is a promising avenue to explore as a therapy. Truncated Dystrophin gene constructs have been engineered and shown to alleviat...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2013.10.015
更新日期：2014-01-01 00:00:00
abstract：:Numerous trials have shown that physical activity and exercise training have beneficial effects in general older populations. However, few have studied its effectiveness among people with dementia. The aim of this systematic review is to examine the efficacy of trials using a rigorous randomised, controlled design and...
journal_title：Experimental gerontology
pub_type： 杂志文章,评审
doi：10.1016/j.exger.2012.08.008
更新日期：2013-01-01 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：:Aging has a profound effect on the immune system, and both innate and adaptive arms of the immune system show functional decline with age. In response to infection with intracellular microorganisms, old animals mobilize decreased numbers of antigen-specific CD8+ T cells with reduced production of effector molecules an...
journal_title：Experimental gerontology
pub_type： 杂志文章,评审
doi：10.1016/j.exger.2018.01.011
更新日期：2018-05-01 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：:The leucine-rich repeat transmembrane 3 (LRRTM3) has been defined as a positional and functional candidate gene for Alzheimer's disease. Recently, four novel variants (rs16923760, rs1925608, rs1925609 and rs10997477) within LRRTM3 were reported to be associated with late-onset Alzheimer's disease (LOAD) in Caucasians....
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2014.01.013
更新日期：2014-04-01 00:00:00
abstract：:Alzheimer's disease (AD) is characterized by amyloid-β plaques, tau pathology and vascular impairment including pericyte damage. Pericytes are perivascular cells of the blood-brain barrier and can differentiate into different cell types in vitro including microglia. The aim of the present study is to explore if primar...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2018.08.003
更新日期：2018-10-02 00:00:00
abstract：:A series of theoretical analyses of mortality were performed on recent data for Mediterranean fruit flies (Ceratitus capitata). Best fit computations were performed using the Marquardt-Levenburg technique on: 1) the classic Gompertz model, 2) the Johnson-Mehl-Avrami (JMA) model from chemical kinetics theory, which is ...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/0531-5565(94)90051-5
更新日期：1994-03-01 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：OBJECTIVE:Mitochondria produce cellular energy via oxidative phosphorylation (OXPHOS), mediated by respiratory chain complexes I to IV and ATP synthase (complex V). Mitochondrial respiratory complexes have been shown to decline with age in several tissues. As the intestinal epithelium is a tissue with a high energy dem...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2020.110924
更新日期：2020-07-01 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：:Aging is the major risk factor for numerous brain diseases. This is especially true for Alzheimer's disease (AD), a peculiar neurodegenerative disorder in that it results from the synergy of two simultaneous but distinct degenerating processes: A beta and tau pathologies. For AD, and for most neurodegenerative disorde...
journal_title：Experimental gerontology
pub_type： 杂志文章,评审
doi：10.1016/j.exger.2003.09.010
更新日期：2003-11-01 00:00:00
