Abstract:
:Age-adjusted mortality rates for breast cancer (BC) in the United States from 1962 to 1987 were subjected to longitudinal Gompertzian analysis. Age-adjusted BC mortality rate distributions for women display two distinct Gompertzian slopes. Between age 15 and 40 years, age-adjusted BC mortality rate distributions intercepted at age 33.5 years and mortality rate (per 100,000) 5.83. Between age 50 and 85 years, age-adjusted BC mortality rate distributions intercepted at age 60.4 years and mortality rate 77.0. These two distinct Gompertzian regions correspond to the clinical and biological classification of BC into pre- and post-menopausal varieties. The observation that postmenopausal BC increases in environments conducive to survival and that premenopausal BC increases in environments that are less favorable becomes understandable when BC mortality dynamics are viewed from a competitive and deterministic perspective.
journal_name
Mech Ageing Devjournal_title
Mechanisms of ageing and developmentauthors
Riggs JEdoi
10.1016/0047-6374(91)90125-jsubject
Has Abstractpub_date
1991-10-01 00:00:00pages
123-33issue
2eissn
0047-6374issn
1872-6216pii
0047-6374(91)90125-Jjournal_volume
60pub_type
杂志文章abstract::Hematological deficiencies increase with aging leading to anemias, reduced hematopoietic stress responses and myelodysplasias. This study tested the hypothesis that side population hematopoietic stem cells (SP-HSC) would decrease with aging, correlating with IGF-1 and IL-6 levels and increases in bone marrow fat. Marr...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章
doi:10.1016/j.mad.2010.10.002
更新日期:2010-11-01 00:00:00
abstract::A highly sensitive nucleic acid hybridization assay was used to compare the extent of nonrepetitive DNA transcription in rat liver between the ages of two and ten months. The basic approach consisted on initially purifying the DNA expressed in liver at these ages and then using it in reactions with homologous and hete...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章
doi:10.1016/0047-6374(81)90045-2
更新日期:1981-04-01 00:00:00
abstract::The effects of age and nutritional conditions on accumulation of autofluorescent granules in various organs and tissues of male Sprague-Dawley rats were compared morphometrically. The relative intensity of the specific fluorescence of these autofluorescent granules was similar in all tissues and cells examined. In alm...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章
doi:10.1016/0047-6374(88)90033-4
更新日期:1988-06-01 00:00:00
abstract::The effects of interleukin-1 (IL-1), tumor necrosis factor-alpha (TNF-alpha), and lipopolysaccharide (LPS) on the productions of nitric oxide (NO) and cGMP by cultured articular chondrocyte (AC) monolayers from 1-, 8- and 18-month old male Wistar rats were studied. It was found that basal NO and cGMP productions decre...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章
doi:10.1016/s0047-6374(97)00150-4
更新日期:1998-03-16 00:00:00
abstract::The serotonin content of platelets, serum and plasma from rats of various ages was examined. In male rats, platelet serotonin content, which was about 0.65 nmol/10(8) platelets at young age (6-7 months), increased slightly at middle age (12-14 months) but decreased markedly at old age (25-26 months). Significant diffe...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章
doi:10.1016/0047-6374(89)90008-0
更新日期:1989-01-01 00:00:00
abstract::In an attempt to understand the molecular mechanisms of age-dependent degenerative alteration in human periodontal tissues, we examined mRNA level and DNA methylation of collagen alpha1(I) gene. Using healthy periodontal ligament tissues from humans aged 9-76 years, we found that the collagen alpha1(I) mRNA level decr...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章
doi:10.1016/s0047-6374(99)00041-x
更新日期:1999-10-01 00:00:00
abstract::Normal diploid Syrian hamster dermal mesenchymal cell strains, regardless of the age of the tissue of origin, exhibit in vitro cellular senescence. The frequency of spontaneous escape from senescence and conversion to a permanent cell line is less than 5% among replicate flasks. The overall pattern of senescence of ce...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章
doi:10.1016/0047-6374(86)90032-1
更新日期:1986-04-01 00:00:00
abstract::Metabolite concentrations in gastrocnemius and soleus muscles were compared in young-adult (4 months), mature (12 months) and senescent (24 months) rats after continuous (72 consecutive hours) exposure to normobaric hypoxia or normoxia with the intraperitoneal administration of the vasodilator naftidrofuryl or saline ...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章
doi:10.1016/0047-6374(90)90051-g
更新日期:1990-06-01 00:00:00
abstract::Functional defects that accumulate in the T cell compartment are thought to be responsible for the pronounced immunodeficiency that develops during ageing, and reduced production of T cells by the thymus as it undergoes involution has been suggested to contribute to this phenomenon. Understanding the mechanisms respon...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章,评审
doi:10.1016/s0047-6374(96)01818-0
更新日期:1997-02-01 00:00:00
abstract::Here we show that a labyrinth channel compartment and slit diaphragms, which are the histological structures enabling insect nephrocytes ultrafiltration, are established during embryogenesis first by the garland nephrocytes (GCNs). The later pericardial nephrocytes, which represent the majority of functional nephrocyt...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章
doi:10.1016/j.mad.2018.04.006
更新日期:2018-07-01 00:00:00
abstract::Classical evolutionary theory predicts the existence of genes with antagonistic effects on longevity and various components of early-life fitness. Quantitative genetic studies have provided convincing evidence that such genes exist. However, antagonistic pleiotropic effects have rarely been attributed to individual lo...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章,评审
doi:10.1016/j.mad.2004.07.012
更新日期:2005-03-01 00:00:00
abstract::The human premature aging protein Werner (WRN), deficient in Werner syndrome (WS), is localized mainly to the nucleolus in many cell types. DNA damage or replication arrest causes WRN to redistribute from the nucleolus to the nucleoplasm into discrete foci. In this study, we have investigated DNA damage specific cellu...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章
doi:10.1016/j.mad.2005.06.004
更新日期:2005-11-01 00:00:00
abstract::The cerebellum is exquisitely sensitive to deficiencies in the cellular response to specific DNA lesions. Genetic disorders caused by such deficiencies involve relentless, progressive cerebellar atrophy with striking loss of Purkinje and granule neurons. The reason for the extreme sensitivity of these cells to defecti...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章
doi:10.1016/j.mad.2013.04.001
更新日期:2013-10-01 00:00:00
abstract::Impaired lymphocyte and granulocyte function in the aged may, in part, reflect intrinsic aged-related biochemical alterations. In this study we compared the ribonucleotide contents of lymphocytes and granulocytes from young and old subjects evaluated by means of an HPLC-anion exchange method. We found that in general ...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章
doi:10.1016/0047-6374(92)90091-q
更新日期:1992-06-01 00:00:00
abstract::In this paper, we approach the problem of attempting to understand senescence by understanding the complexity and hierarchical structure of mammalian organisms. To do this, we make use of some concepts from abstract relational biology; in particular, graph theory. We subsequently utilize these concepts to develop the ...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章
doi:10.1016/0047-6374(84)90056-3
更新日期:1984-10-31 00:00:00
abstract::In this study, we showed that in flies kept for 2 weeks at 1 (terrestrial gravity), 3 or 5 x g (hypergravity, HG) before transfer to 1 x g, resistance to heat remained higher in HG flies for several weeks after the transfer. The measurement of heat shock protein 70 (hsp70) indicated no induction of the protein in HG, ...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章
doi:10.1016/s0047-6374(99)00024-x
更新日期:1999-06-01 00:00:00
abstract::Women enjoy a superior longevity, possibly at the price of a heavy loss of female conceptuses at an early stage of gestation. An immunological mechanism is proposed. A theory of selection at implantation is developed and generalized which leads to a new approach of longevity. ...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章
doi:10.1016/0047-6374(77)90007-0
更新日期:1977-01-01 00:00:00
abstract::Active vitamin D drugs are used for the treatment of osteoporosis in a number of countries, including Japan. However, their use is controversial. Here, we briefly discuss two issues that are important for understanding the role of active vitamin D (rather than plain vitamin D) in the treatment of osteoporosis: (1) whe...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章,评审
doi:10.1016/s0047-6374(00)00115-9
更新日期:2000-07-31 00:00:00
abstract::A mutant of rad-8, originally isolated on the basis of its hypersensitivity to ultraviolet radiation, is also hypersensitive to oxygen and methyl viologen, a superoxide-anion generator. Oxygen also retarded development and reduced fecundity in a concentration-dependent fashion in rad-8 but not in wild type. In additio...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章
doi:10.1016/0047-6374(93)90135-e
更新日期:1993-05-01 00:00:00
abstract::Ageing is the most complex phenotype currently known, since it becomes manifest in all organs and tissues, affects an organism's entire physiology, impacts function at all levels and increases susceptibility to all major chronic diseases. Insight into the molecular and cellular targets of the ageing process would offe...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章,评审
doi:10.1016/s0047-6374(02)00163-x
更新日期:2003-01-01 00:00:00
abstract:INTRODUCTION:Our objective was to study the impact of an identical additional stress on male and female mortality with a quasi-experimental study design, using natural variations in summer mortality, including the massive heat wave that struck Europe in 2003. MATERIAL AND METHODS:The summer daily mortality rates of th...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章
doi:10.1016/j.mad.2012.04.004
更新日期:2012-06-01 00:00:00
abstract::Tumor cells express NADPH oxidase-1 (NOX1) in their membrane and control NOX1-based intercellular reactive oxygen and nitrogen species (ROS/RNS)-dependent apoptosis-inducing signaling through membrane-associated catalase and superoxide dismutase. TREATMENT:of tumor cells with high concentrations of H2O2, peroxnitrite...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章
doi:10.1016/j.mad.2017.11.005
更新日期:2018-06-01 00:00:00
abstract::The microtubule-associated protein tau, and the cytoplasmic protein ubiquitin, are constituents of pathological neurofibrillary tangles found in Alzheimer's disease. In order to see if there is any physiological relationship between these proteins in a functioning human system, human neuroblastoma (LAN-5) cells were g...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章
doi:10.1016/0047-6374(91)90002-h
更新日期:1991-11-15 00:00:00
abstract::Epigallocatechin gallate(EGCG) is a monomer separated from tea catechins, as an well-known antioxidant, which helps fight wrinkles and rejuvenate skin cells. In this study, we investigated the anti-aging effect of EGCG, and to clarify underlying mechanism of skin aging in a d-galactose-induced aging mouse model. Forty...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章
doi:10.1016/j.mad.2017.03.007
更新日期:2017-06-01 00:00:00
abstract::Glucose phosphorylating activity of human erythrocytes quickly decreases during cell ageing; the electrophoretic pattern suggests that this fast decrease is due mainly to the isozyme II. We have shown that in the young cells only hexokinase I and II are responsible for the glucose phosphorylation, while in the old cel...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章
doi:10.1016/0047-6374(78)90024-6
更新日期:1978-10-01 00:00:00
abstract::This paper is part of a series aimed to investigate the mechanism of the action of Folcysteine, a substance that has the capacity to release in the body active -SH groups and has been proved to be effective in the control of menopausal troubles. As an experimental model the ovariectomized rat, rather similar, from the...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章
doi:10.1016/0047-6374(75)90043-3
更新日期:1975-09-01 00:00:00
abstract::The combined grafting of young bone marrow and newborn thymus performed in old mice was effective in restoring the impaired immune functions, but the same treatment performed in middle-aged adult mice had no effect on the life span of C3H/MTV female mice. Sequential multiple newborn thymus graftings starting at young ...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章
doi:10.1016/0047-6374(89)90067-5
更新日期:1989-07-01 00:00:00
abstract::The proto-oncogene c-fos (the cellular homolog of v-fos, Finkel-Biskis-Jenkins (FBJ) murine osteogenic sarcoma virus) encodes a major component of the activator protein-1 (AP-1) transcription factor. Serum stimulation as well as oxidizing treatments induce transitory increases in c-fos mRNA abundance. The induction of...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章
doi:10.1016/0047-6374(95)01689-9
更新日期:1996-03-29 00:00:00
abstract::Great importance is attached to structural and functional deterioration of mitochondria as a reason for ageing of an organism; the attention of many scientists has been concentrated on such questions as age changes in the system of oxidative phosphorylation, damage of mitochondrial DNA by free radicals generated in th...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章
doi:10.1016/0047-6374(93)90153-i
更新日期:1993-05-01 00:00:00
abstract::Alteration of T cell surface marker expression with a decrease of CD3 positive cells relative to the number of CD4 and CD8 positive cells, diminished in vitro proliferative response to mitogenic stimuli like PHA and antibodies to the CD3/Ti complex, and increase in serum IL-2 receptor levels, are among the changes in ...
journal_title:Mechanisms of ageing and development
pub_type: 杂志文章
doi:10.1016/0047-6374(88)90045-0
更新日期:1988-05-01 00:00:00