Abstract:
:Aging is associated with protein damage and imbalance in redox status in a variety of cells and tissues, yet little is known about the extent of age-related oxidative stress in the peripheral nervous system. Previously, we showed a drastic decline in the expression of glial and neuronal proteins in myelinated peripheral nerves with age, which is significantly ameliorated by lifelong calorie restriction. The age-related decline in functional molecules is associated with alterations in cellular protein homeostatic mechanisms, which could lead to a buildup of damaged, aggregated proteins. To determine the extent of oxidative damage within myelinated peripheral nerves, we studied sciatic nerves from rats of four different ages (8, 18, 29, and 38 months) maintained on an ad libitum or a 40% calorie-restricted diet. We found a prominent accumulation of polyubiquitinated substrates with age, which are associated with the conglomeration of distended lysosomes and lipofuscin adducts. The occurrence of these structures is notably less frequent within nerves of age-matched rodents kept on a lifelong reduced calorie diet. Markers for lipid peroxidation, inflammation, and immune cell infiltration are all elevated in nerves of ad libitum-fed rats, whereas food restriction is able to attenuate such deleterious processes with age. Together these results show that dietary restriction is an efficient means of defying age-related oxidative damage and maintaining a younger state in peripheral nerves.
journal_name
Rejuvenation Resjournal_title
Rejuvenation researchauthors
Opalach K,Rangaraju S,Madorsky I,Leeuwenburgh C,Notterpek Ldoi
10.1089/rej.2009.0892subject
Has Abstractpub_date
2010-02-01 00:00:00pages
65-74issue
1eissn
1549-1684issn
1557-8577journal_volume
13pub_type
杂志文章abstract::Lysosomal storage diseases occur due to incomplete metabolic degradation of macromolecules by various hydrolytic enzymes in the lysosome. Despite structural differences, most of the lysosomal enzymes share many common features including a lysosomal targeting motif and phosphotransferase recognition sites. β-Glucuronid...
journal_title:Rejuvenation research
pub_type: 杂志文章,评审
doi:10.1089/rej.2013.1407
更新日期:2013-10-01 00:00:00
abstract::The aim of this study was to evaluate the role of magnesium levels on 3-year survival in the elderly with congestive heart failure (CHF) admitted to the Rehabilitative Cardiology Unit of S. Maugeri Foundation Scientific Institute of Telese/Campoli. All elderly patients > or = 65 years old with a diagnosis of CHF under...
journal_title:Rejuvenation research
pub_type: 杂志文章,多中心研究
doi:10.1089/rej.2007.0583
更新日期:2008-02-01 00:00:00
abstract::Obese older adults are particularly susceptible to sarcopenia and have a higher prevalence of disability than their peers of normal weight. Interventions to improve body composition in late life are crucial to maintaining independence. The main mechanisms underlying sarcopenia have not been determined conclusively, bu...
journal_title:Rejuvenation research
pub_type: 杂志文章,随机对照试验
doi:10.1089/rej.2010.1132
更新日期:2011-06-01 00:00:00
abstract::The pineal hormone melatonin plays a major role in circadian sleep-wake rhythm in many mammals, including humans. Patients with acute confusional state or delirium, especially those with underlying cognitive impairment, frequently suffer from sleep disturbances and disturbed circadian rhythm. In this review, an overvi...
journal_title:Rejuvenation research
pub_type: 杂志文章,评审
doi:10.1089/rej.2012.1405
更新日期:2013-08-01 00:00:00
abstract::Mitochondrial structural and functional integrity is maintained through the coordination of several processes (e.g., biogenesis, dynamics, mitophagy), collectively referred to as mitochondrial quality control (MQC). Dysfunctional MQC and inflammation are hallmarks of aging and are involved in the pathogenesis of muscl...
journal_title:Rejuvenation research
pub_type: 杂志文章,评审
doi:10.1089/rej.2017.1989
更新日期:2018-08-01 00:00:00
abstract::To determine the prognostic value of frailty and comorbidity for outdoor mobility loss and mortality in the elderly. The retrospective study was conducted among outpatients aged ≥60 years. Patients with ≥3 chronic illnesses were treated by doctors who had undergone a 72-hour geriatric training. The outdoor low-mobilit...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2019.2289
更新日期:2020-07-14 00:00:00
abstract::Let us define human aging as the random accumulation of damage in the human organism's cells, tissues, or whole organism during life that increases the probability of death. This definition opens ways to postpone aging via risk factors to health. Studies show that changes in aging have postponed aging 0.15-0.20 years ...
journal_title:Rejuvenation research
pub_type: 杂志文章,评审
doi:10.1089/rej.2008.0675
更新日期:2008-04-01 00:00:00
abstract::The release of mitochondrial cytochrome c followed by activation of caspase cascade has been reported with aging in various tissues, whereas little is known about the caspase-independent pathway involved in mitochondrial dysfunction. To determine the functional impact of cytochrome c loss on mitochondrial respiratory ...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2007.0541
更新日期:2007-09-01 00:00:00
abstract::There is a growing interest in the potential of mesenchymal stem cells (MSCs) for implementing regenerative medicine. We assessed the effect of intravenous administration of human bone marrow-derived MSC on the life span of a single Sprague-Dawley female rat. The treatment was started when the rat was 6 months old and...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2015.1777
更新日期:2016-08-01 00:00:00
abstract:BACKGROUND:Human growth hormone-1 (GH-1), somatotropin, is a peptide hormone that stimulates cell division in tissues such as bone and cartilage. METHODS:To compare physiological activities in lipid-free and lipid-bound states, we expressed and incorporated GH-1 in reconstituted high-density lipoprotein (rHDL). RESUL...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2014.1644
更新日期:2015-06-01 00:00:00
abstract::No study has yet determined the anti-wrinkle efficacy of green tea plus lotus in Asian subjects using skin image analysis technique. In this study, the efficacy of two cosmetic active formulations intended for the treatment of facial wrinkles (green tea and lotus extract) has been evaluated in healthy subjects using a...
journal_title:Rejuvenation research
pub_type: 临床试验,杂志文章
doi:10.1089/rej.2012.1380
更新日期:2013-04-01 00:00:00
abstract::The Strategies for Engineered Negligible Senescence (SENS) agenda contemplates specialized centers that offer a periodic rejuvenation and biogerontological maintenance for their clients. Although high-tech interventions are still in an early research phase, well-proven natural techniques, such as various forms of calo...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2009.0946
更新日期:2010-04-01 00:00:00
abstract::The emergence of immune disorders in aging is explained by many factors, including thymus dysfunction, decrease in the proportion and function of naïve T cells, and so forth. There are several approaches to preventing these changes, such as thymus rejuvenation, stem cells recovery, modulation of hormone production, an...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2012.1331
更新日期:2012-04-01 00:00:00
abstract::The senescence of the immune system contributes considerably to the age-related diseases that are the main causes of death after the age of 65. In this study, we present an appealing option for the prevention of immune senescence and slowing or reversing the aging process, which can be achieved by heterochronous autol...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2018.2164
更新日期:2020-04-01 00:00:00
abstract:BACKGROUND/AIMS:The main purpose of the present study was to investigate the effects of vitamin C and E supplements on the antioxidant capacity of erythrocytes obtained from young and aged rats. METHODS:Male Wistar rats aged 3 and 24 months were used. Vitamins C and E were injected at doses of 200 mg/kg (day) intraper...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2016.1835
更新日期:2017-04-01 00:00:00
abstract::The relationships among lipoprotein metabolism, genetic vascular factors, vascular disease, and Alzheimer's disease suggest that the examination of centenarian populations in relation to certain genes or lipoprotein metabolism provide insights into human longevity. The findings on the higher frequency of the apolipopr...
journal_title:Rejuvenation research
pub_type: 杂志文章,评审
doi:10.1089/rej.2007.0537
更新日期:2007-12-01 00:00:00
abstract::Older patients often suffer from multiple co-morbid conditions. Few co-morbidity indices are valid and reliable in elderly patients and comparison between them is rare. Our objective was to compare the performance, relevance, and abilities of six widely used and validated co-morbidity indices--the Charlson Cumulative ...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2010.1037
更新日期:2010-12-01 00:00:00
abstract::Advanced glycation end products are the results of a series of chemical reactions collectively known as the Maillard reaction, or nonenzymatic glycation, and sometimes cross-link proteins, thereby impairing their normal function. Glucosepane is the most abundant protein cross-link found in vivo so far and mainly has b...
journal_title:Rejuvenation research
pub_type: 杂志文章,评审
doi:10.1089/rej.2009.0846
更新日期:2009-04-01 00:00:00
abstract::The progeroid Werner's syndrome (WS) represents the best current model of human aging. It is caused by loss of the WRN helicase/exonuclease, resulting in high levels of replication fork stalling and genomic instability. Current models suggest that characteristic WS phenotypes of poor S phase progression, low prolifera...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2006.0503
更新日期:2007-03-01 00:00:00
abstract::Lysosomes are involved in degrading and recycling cellular ingredients, and their disruption with age may contribute to amyloidogenesis, paired helical filaments (PHFs), and α-synuclein and mutant huntingtin aggregation. Lysosomal cathepsins are upregulated by accumulating proteins and more so by the modulator Z-Phe-A...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2011.1282
更新日期:2012-04-01 00:00:00
abstract::Telomeres are specialized DNA structures located at the ends of chromosomes. Their length is reduced at each cell cycle, especially when the cumulative burden of oxidative stress is high. The purpose of this study was to determine the associations between telomere length and clinical and biological risk factors in isc...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2011.1243
更新日期:2012-06-01 00:00:00
abstract::It is known that weakness in the lower limbs is associated with recurrent falls in old people. Among the tests routinely used to assess lower extremity strength, the Short Physical Performance Battery (SPPB) is one of those used most often, but its relationship with recurrent falls is poorly investigated. We aimed to ...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2013.1491
更新日期:2014-06-01 00:00:00
abstract::Thrombolytic therapy (TT) is applied in patients (<75 years of age) with acute myocardial infarction (AMI) with ST-segment elevation. It is recommended for elderly patients who have percutaneous transluminal coronary angioplasty (PTCA) or bypass surgery. For PTCA and bypass surgery a cardiosurgery medical team, which ...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2006.9.358
更新日期:2006-07-01 00:00:00
abstract::The aim of the current study was to develop fitness standards associated with maintaining physical capacity in older adults at two different levels-that needed for advanced functioning and that needed for maintaining moderate (independent) functional ability. This was a cross-sectional study of 406 Chilean adults aged...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2016.1913
更新日期:2017-12-01 00:00:00
abstract::We investigated the prognostic role of the Short Physical Performance Battery (SPPB) in elderly patients discharged from the acute care hospital. Our series consisted of 506 patients aged 70 years or more enrolled in a multicenter collaborative observational study. We considered three main outcomes: 1-year survival af...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2011.1215
更新日期:2012-02-01 00:00:00
abstract::Interruption of insulin-like growth factor I (IGF-1) signaling has been demonstrated to prolong life span although the underlying mechanism has not been elucidated. The aim of this study was to examine the influence of severe IGF-1 deficiency on survival rate, cardiomyocyte viability, contractile function, and intrace...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2007.0552
更新日期:2007-12-01 00:00:00
abstract::Theses reviewed in this issue include "Characterization and Purification of Putative Stem Cells from the Adult Murine Pancreas," "Inhibition of TLR4 Minimizes Islet Damage due to Sterile Inflammation and Improves Islet Transplant Outcomes," "Liquefaction of the Brain Following Stroke Shares Multiple Characteristics wi...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2020.2378
更新日期:2020-08-01 00:00:00
abstract::We examined the impact of strong co-presence and function of glutathione peroxidase-1 (GPX-1) and glial cell line-derived neurotrophic factor (GDNF) on protecting the rat dopaminergic pheochromocytoma cell line PC12 against 6-hydroxydopamine (6-OHDA) and hydrogen peroxide (H₂O₂) toxicities. Primarily, GPX-1 over-expre...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2012.1390
更新日期:2013-06-01 00:00:00
abstract::Pluripotent stem cells offer unique opportunities for curing debilitating diseases. However, further comprehensive research is needed to better understand cell signaling during the differentiation of pluripotent cells into different cell lineages and accordingly to develop clinically applicable protocols. One of the l...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2011.1186
更新日期:2011-12-01 00:00:00
abstract::Healthspan science aims to add healthy, functional years to human life. Many different methods of improving healthspan have been investigated, chiefly focusing on just one aspect of an organism's health such as survival. Studies in Drosophila melanogaster have demonstrated that a reversal to a long-abandoned ancestral...
journal_title:Rejuvenation research
pub_type: 杂志文章
doi:10.1089/rej.2020.2361
更新日期:2020-10-20 00:00:00