Search results for " AGEING"

Multimorbidity and anxiety symptoms among adults aged 50 years and over from six low- and middle-income countries

2021

Currently, there are limited data on the association between multimorbidity (i.e., ≥ 2 chronic conditions) and anxiety, especially among the older population in low- and middle-income countries (LMICs). Thus, the aim of the present study was to examine the association between multimorbidity and anxiety symptoms in a large sample of adults aged ≥ 50 years from six LMICs (China, India, Ghana, Mexico, Russia, South Africa). Cross-sectional, nationally representative, community-based data from the Study on Global Ageing and Adult Health (SAGE) were analysed. A total of 11 chronic physical conditions were assessed. Anxiety symptoms referred to extreme/severe problems with worry or anxiety in the…

Sex-specific effects of natural and sexual selection on the evolution of life span and ageing in Drosophila simulans

2014

Summary Variation in the strength of age-dependent natural selection shapes differences in ageing rates across species and populations. Likewise, sexual selection can promote divergent patterns of senescence across the sexes. However, the effects of these processes on the evolution of ageing have largely been considered independently, and interactions between them are poorly understood. We use experimental evolution to investigate how natural and sexual selection affect life span and ageing in Drosophila simulans. Replicate populations were evolved under lifetime monogamy (relaxed sexual selection) or lifetime polyandry (elevated sexual selection) and at one of two temperatures, 25 °C (rela…

TRafficking profile in naive and memory B cells in young and old subjects

2012

Diet to Reduce the Metabolic Syndrome Associated with Menopause. The Logic for Olive Oil

2020

The rates of metabolic syndrome are increasing in parallel with the increasing prevalence of obesity, primarily due to its concomitant insulin resistance. This is particularly concerning for women, as the years around menopause are accompanied by an increase in visceral obesity, a strong determinant of insulin resistance. A fall in estrogens and increase in the androgen/estrogen ratio is attributed a determining role in this process, which has been confirmed in other physiological models, such as polycystic ovary syndrome. A healthy lifestyle, with special emphasis on nutrition, has been recommended as a first-line strategy in consensuses and guidelines. A consistent body of evidence has ac…

Influence of accelerated ageing conditions on the process of polyolefines degradation

2003

The process of polymers weathering and the methods of polymers weathering and accelerated ageing investigations were characterized. Accelerated ageing tests of polyethylene and polypropylene samples have been done in laboratory conditions. The ageing time (up to 400 h) influence, at various levels of ageing factors: UV radiation intensity (80—190 W/m2), temperature (35—55 °C) and humidity (30—90%), on the changes of the structures of polymers investigated (shares of carbonyl and olefinic groups from FT-IR spectra — Fig. 1, 2, 4 and 5), on the changes of polymers molecular weights (Fig. 3 and 6, Table 1) and on the changes of mechanical properties during tension (Table 1) has been investigat…

E-beam cross-linking of LDPE-OMMT nanocomposites and their photo-oxidation behaviour

2010

Probiotics and Prebiotics: Health Promotion by Immune Modulation in the Elderly

2013

The trouble with vulnerability. Narrating ageing during the COVID-19 pandemic

2023

In this paper, we have used the exceptional circumstances created by the COVID-19 pandemic as a window for investigating the ambivalent, stereotypical and often-incongruent portrayals of exceptional vulnerability and resilient self-management that define the self-constructions available for older adults. From the onset of the pandemic, older adults were publicly and homogenously presented as a biomedically vulnerable population, and the implementation of restrictive measures also raised concerns over their psychosocial vulnerability and wellbeing. Meanwhile, the key political responses to the pandemic in most affluent countries aligned with the dominant paradigms of successful and active ag…

Germination Pattern of Chamaerops humilis Seed after Short-Time Storage

2015

Dwarf fan palm (Chamaerops humilis) plays an important ecological role in the thermo Mediterranean vegetation stage, both in woodlands, xerophitic shrub communities and degraded ecosystems. Dwarf fan palm is typically propagated from seeds. Whereas other palm species show reduced germination after few months of seed storage, no information is available on the effects of storage time on seed germinability . We examined the germination pattern of dwarf palm seeds aged after a storage of four, six or eight months in comparison to fresh seed (control). A covariance analysis was performed to test the effect of time within seed-storage treatment. The germination patterns were significantly fitted…

Vēlīnā brieduma indivīdu priekšstati par dzīvi un iekšējās saskaņas rādītāji

2017

Pētījuma mērķis - izpētīt, kādi ir vēlīnā brieduma indivīdu – sociālā aprūpes centra iemītnieku priekšstati par dzīvi (un nāvi) un šo indivīdu iekšējās saskaņas izjūtas rādītāji, kā arī, vai vecums, dzimums, ģimenes stāvoklis, iegūtā izglītība un sava veselības stāvokļa novērtējums ietekmē Iekšējās saskaņas izjūtas (ISI) aptaujas apakšskalas datus. Kvalitatīvajā pētījuma daļā piedalījās 3 respondenti, ar kuriem notika strukturētas intervijas, veicot naratīvu kontentanalīzi. Kvantitatīvajā pētījuma daļā piedalījās 50 respondenti, kas dzīvo sociālās aprūpes centrā: 35 sievietes, 15 vīrieši. Iekšējās saskaņas izjūtas (ISI) mērīšanai tika izmantota A.Antonovska (Antonovsky, 1987) Iekšējās saska…