Ageing of the skin: study of elastic fiber network modifications by computerized image analysis.

Abstract:

:We quantitated the skin elastic fibers of the papillary and reticular dermis using specific staining procedure followed by automated computerized image analysis. Fifty skin biopsies of patients consulting for cardiovascular risk factors were studied. The following parameters were estimated: surface area (% of total surface), length, and number of fibers as a function of age. The evaluation of the skin elastic fiber system showed no significant trend with age in the number of elastic fibers per unit area in the superficial or deep dermis. We found, however, a continuous increase with age in the relative surface area, and the length of the elastic fiber system. These results can best be interpreted as a continuous apposition of elastic-type material to the preexisting fibers by skin fibroblasts. This material may well be of a different composition than young elastin, for instance enriched in structural glycoproteins (microfibrils), lipids and calcium as found in the elastic fibers of aorta and lung. Such quantitative modifications may explain the decrease in skin elasticity, and the continuous increase in stained fibers.

journal_name

Gerontology

journal_title

Gerontology

authors

Robert C,Lesty C,Robert AM

doi

10.1159/000212969

subject

Has Abstract

pub_date

1988-01-01 00:00:00

pages

291-6

issue

5-6

eissn

0304-324X

issn

1423-0003

journal_volume

34

pub_type

杂志文章
  • Impact of pneumococcal vaccination on morbidity and mortality of geriatric patients: a case-controlled study.

    abstract:BACKGROUND:Infections due to Streptococcus pneumoniae are the major cause of adult community-acquired pneumonia, especially in elderly persons with chronic medical conditions. Despite their well-documented efficacy against bacteraemic disease and deaths in the elderly population, pneumococcal polysaccharide vaccines ar...

    journal_title:Gerontology

    pub_type: 杂志文章

    doi:10.1159/000070405

    authors: Wagner C,Popp W,Posch M,Vlasich C,Rosenberger-Spitzy A

    更新日期:2003-07-01 00:00:00

  • Predictors of improvement or decline in instrumental activities of daily living among community-dwelling older Japanese.

    abstract:BACKGROUND:To explore predictors of functional improvement or decline in instrumental activities of daily living (IADL) among community-dwelling older people. METHODS:Of all the residents (>or=65 years, n = 1,673) living in Yoita town, Niigata prefecture, Japan, in 2000, 1,544 subjects who participated in the baseline...

    journal_title:Gerontology

    pub_type: 杂志文章

    doi:10.1159/000151221

    authors: Fujiwara Y,Yoshida H,Amano H,Fukaya T,Liang J,Uchida H,Shinkai S

    更新日期:2008-01-01 00:00:00

  • Is primary biliary cirrhosis a different disease in the elderly?

    abstract::We examined the presenting features, clinical course and prognosis in relation to age in 121 patients with primary biliary cirrhosis (PBC) for a mean follow-up of 4.6 years. 35 patients (29%) were over age 65 years at presentation/detection. There was a higher proportion of patients asymptomatic of liver disease in th...

    journal_title:Gerontology

    pub_type: 杂志文章

    doi:10.1159/000212701

    authors: Lehmann AB,Bassendine MF,James OF

    更新日期:1985-01-01 00:00:00

  • Factors associated with seven-year incidence of diabetes complications among older Mexican Americans.

    abstract:BACKGROUND:Diabetes is common in elderly persons and is highly prevalent in Mexican Americans. Little is known about factors associated with the incidence of diabetes complications. OBJECTIVE:To examine the social, demographic and health factors associated with a 7-year incidence of diabetes complications among older ...

    journal_title:Gerontology

    pub_type: 杂志文章,多中心研究

    doi:10.1159/000100443

    authors: Kaushik VP,Al Snih S,Ray LA,Raji MA,Markides KS,Goodwin JS

    更新日期:2007-01-01 00:00:00

  • Molecular mechanisms of ageing. A critique.

    abstract::Two kinds of evidence, taken in conjunction, indicate that Orgel's theory is inapplicable to a wide range of disorders of senescence in man. The age dependence and the anatomical distribution of the lesions of such disorders imply a Burnet type 'forbidden clone' theory of ageing. We describe the difficulty of establis...

    journal_title:Gerontology

    pub_type: 杂志文章

    doi:10.1159/000212135

    authors: Burch PR,Jackson D

    更新日期:1976-01-01 00:00:00

  • Cerebral vasoreactivity in senile dementia.

    abstract::A group of clinical senile dementia patients underwent a series of cerebrovascular examinations. Some of them were standard examinations (fundus oculi, electroencephalogram, rheoencephalogram, cerebral angiogram and pneumonencephalogram) while the others were studying regional cerebral blood flow (rCBF) and modificati...

    journal_title:Gerontology

    pub_type: 杂志文章

    doi:10.1159/000212183

    authors: Dekoninck WJ,Collard M,Noel G

    更新日期:1977-01-01 00:00:00

  • The Increasing Importance of Friendship in Late Life: Understanding the Role of Sociohistorical Context in Social Development.

    abstract::Historically, family ties have been understood as the primary source of support for aging adults, and past empirical and theoretical work has highlighted the tendency of older adults to focus on close family. However, in line with demographic changes and historical increases in the diversity of social structures, frie...

    journal_title:Gerontology

    pub_type: 杂志文章,评审

    doi:10.1159/000505547

    authors: Fiori KL,Windsor TD,Huxhold O

    更新日期:2020-01-01 00:00:00

  • Do white matter changes have clinical significance in Alzheimer's disease?

    abstract:BACKGROUND:Although white matter changes visible with MRI are generally considered to result from ischemia, it has become clear that these changes also appear in patients with Alzheimer's disease (AD). However, their significance in AD is unknown. OBJECTIVE:We evaluated the clinical significance of white matter change...

    journal_title:Gerontology

    pub_type: 杂志文章

    doi:10.1159/000078353

    authors: Kono I,Mori S,Nakajima K,Nakagawa M,Watanabe Y,Kizu O,Yamada K,Sakai Y

    更新日期:2004-07-01 00:00:00

  • Production of endothelin-1 in vascular endothelial cells is regulated by factors associated with vascular injury.

    abstract::We studied the effects of factors associated with vascular injury on the production of endothelin-1 (ET-1) in cultured porcine aortic endothelial cells. ET-1 mRNA expression and peptide production in endothelial cells were increased by thrombin, transforming growth factor beta 1 (TGF beta 1), interleukin-1 (IL-1) and ...

    journal_title:Gerontology

    pub_type: 杂志文章

    doi:10.1159/000213360

    authors: Maemura K,Kurihara H,Morita T,Oh-hashi Y,Yazaki Y

    更新日期:1992-01-01 00:00:00

  • Multifactorial memory training with older adults: how to foster maintenance of improved performance.

    abstract::The purpose of this study was to examine the effects of a multifactorial memory training program designed for normal older adults. The multifactorial program involved the training of three components that are critical to memory functioning: recoding operations, attentional functions and relaxation. Two controls groups...

    journal_title:Gerontology

    pub_type: 杂志文章

    doi:10.1159/000213035

    authors: Stigsdotter A,Bäckman L

    更新日期:1989-01-01 00:00:00

  • Cell therapy for age-related disorders: myocardial infarction and stroke--a mini-review.

    abstract:BACKGROUND:The leading causes of death and disability in the elderly are from cardiovascular and cerebrovascular diseases. The biological role of stem cells in the hematopoietic system has been well characterized and has led to the development of hematopoietic stem and progenitor cell (HSPC) transplantation for the tre...

    journal_title:Gerontology

    pub_type: 杂志文章,评审

    doi:10.1159/000156223

    authors: Williams BA,Keating A

    更新日期:2008-01-01 00:00:00

  • Future time perspective: opportunities and limitations are differentially associated with subjective well-being and hair cortisol concentration.

    abstract:BACKGROUND:Future time perspective has been associated with subjective well-being, though depending on the line of research considered either an open-ended future time perspective or a limited future time perspective has been associated with high well-being. Most of this research however has conceptualized future time ...

    journal_title:Gerontology

    pub_type: 杂志文章

    doi:10.1159/000368716

    authors: Kozik P,Hoppmann CA,Gerstorf D

    更新日期:2015-01-01 00:00:00

  • Dihydroergotoxine-induced modulation of spontaneous activity of cultured rat Purkinje cells.

    abstract::We use nerve tissue cultures as a model system for studying the mode of action of centrally acting drugs. Neurons in cerebellar cultures retain a number of organ-specific properties including the formation of complex synaptic networks and characteristic bioelectric activity. Electrical activity may be recorded from Pu...

    journal_title:Gerontology

    pub_type: 杂志文章

    doi:10.1159/000212300

    authors: Gähwiler BH

    更新日期:1978-01-01 00:00:00

  • The impact of environment in comparison with moderate physical exercise and dietary restriction on BDNF in the cerebral parietotemporal cortex of aged Sprague-Dawley rats.

    abstract:BACKGROUND AND AIMS:Moderate physical exercise, dietary restriction as well as enriched environment in separate studies have been reported to delay some of the adverse effects of aging on brain function, parallel to an increase in brain-derived neurotrophic factor (BDNF). In order to elucidate these influences in a com...

    journal_title:Gerontology

    pub_type: 杂志文章

    doi:10.1159/000095117

    authors: Strasser A,Skalicky M,Hansalik M,Viidik A

    更新日期:2006-01-01 00:00:00

  • Effects of centrophenoxine on the monovalent electrolyte contents of the large brain cortical cells of old rats.

    abstract::The effect of centrophenixine has been studied on the monovalent electrolyte contents of the brain cortical cells of old female Wistar rats by means of energy dispersive x-ray microanalysis. The drug was administered in form of an intraperitoneal injection of 100 mg/kg body weight for 20 days. The treatment decreased ...

    journal_title:Gerontology

    pub_type: 杂志文章

    doi:10.1159/000212326

    authors: Zs-Nagy I,Pieri C,Giuli C,Del Moro M

    更新日期:1979-01-01 00:00:00

  • Thymus and aging: potential of gene therapy for restoration of endocrine thymic function in thymus-deficient animal models.

    abstract:OBJECTIVE AND BACKGROUND:The aim of the present article is to discuss the potential of gene therapy for thymic hormones as a novel therapeutic strategy to treat dyshomeostatic states associated with athymia, as Di George syndrome, or hypothymic conditions like those associated with AIDS, chronic stress or aging. First ...

    journal_title:Gerontology

    pub_type: 杂志文章

    doi:10.1159/000065258

    authors: Goya RG,Cónsole G,Hereñú C,Brown O,Rimoldi OJ

    更新日期:2002-09-01 00:00:00

  • Proinflammation of aging central arteries: a mini-review.

    abstract::Arterial aging is a cornerstone of organismal aging. The central arterial wall structurally and functionally remodels under chronic proinflammatory stress over a lifetime. The low-grade proinflammation that accompanies advancing age causes arterial wall thickening and stiffening. These structural and functional altera...

    journal_title:Gerontology

    pub_type: 杂志文章,评审

    doi:10.1159/000362548

    authors: Wang M,Monticone RE,Lakatta EG

    更新日期:2014-01-01 00:00:00

  • Changes in serum cortisol with age in critically ill patients.

    abstract:BACKGROUND:Mortality in the intensive care unit (ICU) rises with age, a high basal serum cortisol and a small response to adrenocorticotropin (ACTH) stimulation. Even slight impairment of the adrenal response during severe illness can be lethal. OBJECTIVES:To determine if age is associated with changes in basal or sti...

    journal_title:Gerontology

    pub_type: 杂志文章

    doi:10.1159/000048932

    authors: Beale E,Zhu J,Belzberg H

    更新日期:2002-03-01 00:00:00

  • The decrease in noradrenaline concentration in the posterior tibial artery with age.

    abstract::The concentrations of noradrenaline and adrenaline were studied in specimens of the posterior tibial artery obtained from 18 subjects at postmortem examination. The mean noradrenaline concentration was 167 ng/g artery (range 17-449 ng/g) and the mean adrenaline concentration was 5 ng/g (range 0--21 ng/g). There was no...

    journal_title:Gerontology

    pub_type: 杂志文章

    doi:10.1159/000212263

    authors: Neubauer B,Christensen NJ

    更新日期:1978-01-01 00:00:00

  • Age-related alterations in sympathetic-adrenal medullary responses to stress.

    abstract::In mammals, aging is often viewed as a progressive decline in physiological competence with a corresponding inability to adapt to stressful stimulation. Several current theories of aging have implicated the sympathetic nervous system in many of the metabolic, cardiovascular and behavior changes which attend advancing ...

    journal_title:Gerontology

    pub_type: 杂志文章

    doi:10.1159/000212785

    authors: McCarty R

    更新日期:1986-01-01 00:00:00

  • Neurogenesis in the Normal Ageing Hippocampus: A Mini-Review.

    abstract::New neurons are continuously generated and added to neural circuits in the adult brain. However, increasing age imposes changes in neural progenitor cells and their microenvironment that lead to a reduction of neurogenesis. Age-related decreased production of new neurons in the neurogenic dentate gyrus has been associ...

    journal_title:Gerontology

    pub_type: 杂志文章,评审

    doi:10.1159/000368575

    authors: Seib DR,Martin-Villalba A

    更新日期:2015-01-01 00:00:00

  • Immune reactivity and attractiveness.

    abstract::Over the past decades, information about the characteristics of attractiveness has accumulated. We know about eight pillars of beauty, among them youthfulness, symmetry, hormone markers and body odor. But what is the biological function of these attractive signals? Is there one common function to be found in all eight...

    journal_title:Gerontology

    pub_type: 杂志文章

    doi:10.1159/000265559

    authors: Oberzaucher E,Grammer K

    更新日期:2010-01-01 00:00:00

  • Effects of Movement-Based Mind-Body Interventions on Physical Fitness in Healthy Older Adults: A Meta-Analytical Review.

    abstract:INTRODUCTION:Declines in physical fitness can notably affect healthy aging of older adults. Multimodal exercise training regimen such as mind-body interventions (MBIs) has been reported to mitigate these aging-related declines of physical function. This meta-analytical review aimed at pooling the effects of MBIs on phy...

    journal_title:Gerontology

    pub_type: meta分析

    doi:10.1159/000512675

    authors: Ebner SA,Meikis L,Morat M,Held S,Morat T,Donath L

    更新日期:2021-01-27 00:00:00

  • Robot therapy: a new approach for mental healthcare of the elderly - a mini-review.

    abstract::Mental healthcare of elderly people is a common problem in advanced countries. Recently, high technology has developed robots for use not only in factories but also for our living environment. In particular, human-interactive robots for psychological enrichment, which provide services by interacting with humans while ...

    journal_title:Gerontology

    pub_type: 杂志文章,评审

    doi:10.1159/000319015

    authors: Shibata T,Wada K

    更新日期:2011-01-01 00:00:00

  • Evidence for increased proteolytic activity in ageing human fibroblasts.

    abstract::We have shown that ultrastructural changes accompany ageing in the human fetal lung fibroblast strain MRC-5. In order to further characterise these changes a method has been devised to prepare subcellular fractions from MRC-5 fibroblasts using a discontinous gradient of metrizamide preceded by a low-speed centrifugati...

    journal_title:Gerontology

    pub_type: 杂志文章

    doi:10.1159/000212358

    authors: Shakespeare VA,Buchanan JH

    更新日期:1979-01-01 00:00:00

  • Psychometric Properties of the MyotonPRO in Dementia Patients with Paratonia.

    abstract:BACKGROUND:Paratonia is a distinctive form of hypertonia, causing loss of functional mobility in early stages of dementia to severe high muscle tone and pain in the late stages. For assessing and evaluating therapeutic interventions, objective instruments are required. OBJECTIVE:Determine the psychometric properties o...

    journal_title:Gerontology

    pub_type: 杂志文章,多中心研究

    doi:10.1159/000485462

    authors: Drenth H,Zuidema SU,Krijnen WP,Bautmans I,van der Schans C,Hobbelen H

    更新日期:2018-01-01 00:00:00

  • Assessing and using comorbidity measures in elderly veterans with lower extremity amputations.

    abstract:BACKGROUND:Understanding comorbidity prevalence and the effects of comorbidities in older veterans with lower extremity amputations may aid in assessing patient outcomes, resource use, and facility-level quality of care. OBJECTIVES:To determine the degree to which adding outpatient to inpatient administrative data sou...

    journal_title:Gerontology

    pub_type: 杂志文章

    doi:10.1159/000101703

    authors: Kurichi JE,Stineman MG,Kwong PL,Bates BE,Reker DM

    更新日期:2007-01-01 00:00:00

  • Effect of short- and long-term endurance training on creatine phosphokinase activity in skeletal and cardiac muscles of CW-1 and C57BL mice.

    abstract::Creatine phosphokinase (CPK) has been shown to provide the initial ATP for muscle contraction. The effect of wheel running on CPK levels was compared in hindleg and cardiac muscles of young, intermediate-age and old outbred CW-1 and inbred C57BL mice. Short-term (5 weeks) and long-term (over 12 months) regimens were u...

    journal_title:Gerontology

    pub_type: 杂志文章

    doi:10.1159/000212849

    authors: Steinhagen-Thiessen E,Reznick AZ

    更新日期:1987-01-01 00:00:00

  • Protein phosphotransferases from liver of ageing rats.

    abstract::Cyclic AMP-dependent and -independent protein kinase have been isolated from livers of rats at 3, 9, 18 and 30 months of age. A preliminary characterization reported here reveals that in addition to a decrease in their activities due to ageing and a likely shift to cyclic AMP-independent casein kinase activity at 30 m...

    journal_title:Gerontology

    pub_type: 杂志文章

    doi:10.1159/000212605

    authors: Kumar R,Chiero L,Rodriguez D

    更新日期:1984-01-01 00:00:00

  • Association between serum vitamin D status and functional mobility in memory clinic patients aged 65 years and older.

    abstract:BACKGROUND:Recent studies have shown that vitamin D status may be relevant for physical and cognitive performance in the older population. This association may be of particular interest to older people at risk for cognitive impairment and functional decline. OBJECTIVE:The aim of this study was to determine the associa...

    journal_title:Gerontology

    pub_type: 杂志文章

    doi:10.1159/000355667

    authors: Gschwind YJ,Bischoff-Ferrari HA,Bridenbaugh SA,Härdi I,Kressig RW

    更新日期:2014-01-01 00:00:00