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 Phase 1 clinical safety study, cases are presented for the treatment of therapy resistant leg ulcers. All eight patients, representing 13 ulcers, tolerated multiple treatments with fetal biological bandages showing no negative secondary effects and repair processes similar to that seen in 3rd degree burns. Differential gene profiling using Affymetrix gene chips (analyzing 12,500 genes) were accomplished on these banked fetal dermal skin cells compared to banked dermal skin cells of an aged donor in order to point to potential indicators of wound healing. Families of genes involved in cell adhesion and extracellular matrix, cell cycle, cellular signaling, development and immune response show significant differences in regulation between banked fetal and those from banked old skin cells: with approximately 47.0% of genes over-expressed in fetal fibroblasts. It is perhaps these differences which contribute to efficient tissue repair seen in the clinic with fetal cell therapy.
journal_name
Exp Gerontoljournal_title
Experimental gerontologyauthors
Ramelet AA,Hirt-Burri N,Raffoul W,Scaletta C,Pioletti DP,Offord E,Mansourian R,Applegate LAdoi
10.1016/j.exger.2008.11.004subject
Has Abstractpub_date
2009-03-01 00:00:00pages
208-18issue
3eissn
0531-5565issn
1873-6815pii
S0531-5565(08)00344-6journal_volume
44pub_type
杂志文章abstract：:The field of toxicology adopted the threshold dose response in the early decades of the 20th century. The model was rapidly incorporated into governmental regulatory assessment procedures and became a central feature of chemical evaluation and assessment. The toxicological community never validated the capacity of thi...
journal_title：Experimental gerontology
pub_type： 历史文章,杂志文章
doi：10.1016/j.exger.2012.02.004
更新日期：2013-01-01 00:00:00
abstract：:Aging is a physiological process characterized by an age-progressive decline in intrinsic physiological functions, with an increased risk of developing chronic metabolic conditions, such as insulin resistance and diabetes. Furthermore, from a physiopathological point of view, several authors describe an association be...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2019.03.011
更新日期：2019-07-01 00:00:00
abstract：:We previously demonstrated that in vitro stimulated splenic B cells from senescent mice are deficient in production of multiple class switch isotypes, class switch recombination (CSR), induction of the E2A-encoded transcription factor E47, and activation-induced cytidine deaminase (AID) which is necessary for CSR and ...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2006.09.003
更新日期：2007-03-01 00:00:00
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journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2018.11.005
更新日期：2019-03-01 00:00:00
abstract：:Indigenous DNA adducts (I-compounds) are considered to be a biomarker of aging tissues. Thus far, few studies have been conducted to investigate the accumulation patterns of I-compounds in the brain during aging. Particularly, identities of age-dependent I-compounds have largely remained unknown. In the current study,...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/0531-5565(95)02027-6
更新日期：1996-05-01 00:00:00
abstract：:Advances in our understanding of tau-mediated neurodegeneration in Alzheimer's disease (AD) are moving this disease pathway to center stage for the development of biomarkers and disease modifying drug discovery efforts. Immunoassays were developed detecting total (t-tau) and tau phosphorylated at specific epitopes (p-...
journal_title：Experimental gerontology
pub_type： 杂志文章,评审
doi：10.1016/j.exger.2009.10.010
更新日期：2010-01-01 00:00:00
abstract：INTRODUCTION:Right ventricular dysfunction (RVD), submassive pulmonary embolism (PE), elevated systolic pulmonary artery pressure (sPAP), elevated cardiac troponin I (cTnI) and old age are well-known risk factors for poor outcome in acute normotensive PE. The aim of this analysis was to calculate age cut-off values to ...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2015.05.007
更新日期：2015-09-01 00:00:00
abstract：:Type 2 diabetes is associated with progressive beta-cell failure manifest as a decline in insulin secretion and increasing hyperglycemia. A growing body of evidence suggests that beta-cell failure in type 2 diabetes correlates with the formation of pancreatic islet amyloid deposits, indicating that islet amyloid may h...
journal_title：Experimental gerontology
pub_type： 杂志文章,评审
doi：10.1016/s0531-5565(03)00004-4
更新日期：2003-04-01 00:00:00
abstract：:We have identified a multistep mechanism by which the DNA virus SV40 overcomes cellular senescence. Expression of SV40 T antigen is required for both transient extension of life span and unlimited life span or immortalization. These effects are mediated through inactivation of function of growth suppressors pRB and p5...
journal_title：Experimental gerontology
pub_type： 杂志文章,评审
doi：10.1016/0531-5565(95)00024-0
更新日期：1996-01-01 00:00:00
abstract：:Ageing is highly complex, involving multiple mechanisms at different levels. Nevertheless, recent evidence suggests that several of the most important mechanisms are linked via endogenous stress-induced DNA damage caused by reactive oxygen species (ROS). Understanding how such damage contributes to age-related changes...
journal_title：Experimental gerontology
pub_type： 杂志文章,评审
doi：10.1016/s0531-5565(01)00111-5
更新日期：2001-07-01 00:00:00
abstract：:Age-related bone loss is thought to be due to impaired osteoblast functions. Insulin-like growth factors (IGFs) have been shown to be important stimulators of bone formation and osteoblast activities in vitro and in vivo. We tested the hypothesis that in vitro osteoblast senescence is associated with changes in compon...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/s0531-5565(00)00125-x
更新日期：2000-10-01 00:00:00
abstract：:Recently, it has been suggested that oxytocin (OT) might play a role in the control of bone remodeling and in bone health of young and adult females. The purpose of this study was to evaluate the effect of osteogenic medium (OM) plus OT (OM + OT; 100 nmol/L) on osteoblastic differentiation of bone marrow mesenchymal s...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2018.09.023
更新日期：2018-11-01 00:00:00
abstract：:Reactive oxygen species (ROS) play important roles in cellular senescence and organismic aging. Furthermore, they have been implicated in some of the adverse effects of chronic stress due to elevated peripheral levels of catecholamines. Here, we applied three different techniques to individually compare the systemic a...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2007.08.003
更新日期：2007-11-01 00:00:00
abstract：:An age-related increase of DNA damage/mutation has been previously reported in human lymphocytes. The high copy number and mutation rate make the mtDNA genome an ideal candidate for assessing damage and to act as a potential biomarker of ageing. In the present study, two assays were developed to evaluate the level of ...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/s0531-5565(01)00200-5
更新日期：2002-01-01 00:00:00
abstract：:A crucial assumption of evolutionary theories of aging is that age-specific differences of life history traits may have genetic causes. The present study focuses on the existence of such differences between eight freshly caught populations of Drosophila melanogaster. A highly significant differentiation of the populat...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/s0531-5565(96)00073-3
更新日期：1996-11-01 00:00:00
abstract：:The goal of these experiments was to determine if the increased longevity characteristics of our genetically selected long lived line of Drosophila could be attributed to metabolic differences. The data shows an inverse relationship between life span and temperature for both the long lived (L) and normal (R) strains; ...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/0531-5565(88)90020-4
更新日期：1988-01-01 00:00:00
abstract：OBJECTIVE:This study aimed to evaluate the effect of vitamin D3 megadose supplementation and influence of BsmI polymorphism in the VDR gene on the inflammatory profile and oxidative stress in elderly women with vitamin D deficiency. METHODS:A double blind, randomized, placebo-controlled trial was conducted with 40 eld...
journal_title：Experimental gerontology
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.exger.2015.03.011
更新日期：2015-06-01 00:00:00
abstract：:It is now widely recognized that in order to optimize bone health in the later years, bone healthy behaviors should begin at a young age and continue throughout life. Prescribed orally to lower lipid levels in adults of all ages, statins have also been shown to stimulate bone formation in vitro by promoting bone morph...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2013.04.007
更新日期：2013-08-01 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：OBJECTIVE:Depression is common in hemodialysis patients. Reduced DHEA-S levels have been shown to be associated with depression in general population. Abnormalities in hormone production and metabolism are found in hemodialysis patients. However, the association between DHEA-S levels and depression in hemodialysis pati...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2009.08.009
更新日期：2009-11-01 00:00:00
abstract：:This study investigated the effect (in vivo) of centrophenoxine (Helfergin) on the activity of antioxidant enzymes (glutathione peroxidase GSH-PER, glutathione reductase GSSG-RED, superoxide dismutase SOD and catalase) in subcellular fractions from the regions of the brain (cerebrum, cerebellum and brain stem) of rats...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/0531-5565(83)90031-1
更新日期：1983-01-01 00:00:00
abstract：:The balance between the activities of matrix metalloproteinases (MMPs) and the tissue inhibitors of metalloproteinases (TIMPs) is an important control point in tissue remodeling. Previous studies have demonstrated elevated expression of the MMPs collagenase and stromelysin-1 by aged human diploid fibroblasts compared ...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/0531-5565(95)02010-1
更新日期：1996-01-01 00:00:00
abstract：:Life history theory proposes that menopause is either an epiphenomenon or an adaptation. The most recent adaptive hypothesis proposes that menopause in humans has evolved because of conflict between reproducing generations (RCH). Overlapping reproduction between generations may impose fitness costs to older and younge...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2013.02.001
更新日期：2013-04-01 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：:To test if the adrenocortical axis of the rat loses sensitivity to negative feedback control during aging, we examined corticosterone secretion under basal, stressed and post-stress conditions in young and in aged Fisher male rats. We find no age-related change in the speed or magnitude of the stress response or in th...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/0531-5565(83)90051-7
更新日期：1983-01-01 00:00:00
abstract：:Aging plays an important role in increased vulnerability to atrial fibrillation (AF). Mediated by activity at the muscarinic type 2 receptor (M2R), the parasympathetic nerve contributes to the onset of AF. The purpose of this study was to investigate whether aging changes the distribution of M2R in the atrial myocardi...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2009.06.002
更新日期：2009-09-01 00:00:00
abstract：:SIRT1 is a highly conserved NAD(+)-dependent protein deacetylase known to have protective effects against a variety of age-related diseases. However, there is a lack of information concerning SIRT1 expression in the cochlea and auditory cortex of C57BL/6 mice, a mouse model of age-related hearing loss. Using RT-PCR an...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2013.12.006
更新日期：2014-03-01 00:00:00
abstract：:The antioxidant 2-mercaptoethylamine (MEA) was added to the culture medium of WI-38 cells throughout their lifespan. MEA concentrations of 0.5 microM, 5 microM and 50 microM were used. The presence of 5 microM or 50 microM MEA decreased the fraction of rapidly dividing cells and slightly reduced cell density at conflu...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/0531-5565(84)90026-3
更新日期：1984-01-01 00:00:00
abstract：:Collagens and elastin are 'building blocks' of tissues and extracellular matrix. Mutations in these proteins cause severe congenital syndromes. Adverse genetic variations may accelerate the aging process in adults contributing to premature morbidity, disability and/or mortality. Favorable variants may contribute to lo...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2019.110781
更新日期：2020-01-01 00:00:00
abstract：BACKGROUND:The proportion of elderly individuals is growing and the prevalence of chronic kidney disease (CKD) among elderly people undergoing cardiac surgery is increasing constantly. The aim of this study was to determine the influence of different degrees of preoperative renal dysfunction on postoperative outcomes i...
journal_title：Experimental gerontology
pub_type： 杂志文章
doi：10.1016/j.exger.2013.01.012
更新日期：2013-03-01 00:00:00
