Search results for "Stress."

Bcl-xL as a Modulator of Senescence and Aging

2021

Many features of aging result from the incapacity of cells to adapt to stress conditions. When cells are overwhelmed by stress, they can undergo senescence to avoid unrestricted growth of damaged cells. Recent findings have proven that cellular senescence is more than that. A specific grade of senescence promotes embryo development, tissue remodeling and wound healing. However, constant stresses and a weakening immune system can lead to senescence chronicity with aging. The accumulation of senescent cells is directly related to tissue dysfunction and age-related pathologies. Centenarians, the most aged individuals, should accumulate senescent cells and suffer from their deleterious effects,…

Epigenetic regulation of sex differences in susceptibility to stress

2017

Under current diagnostics depression and stress related mood disorders have a higher occurrence in women than men. Little is known of the biological mechanisms contributing to these sex differences and how they may impact potential new therapeutics. Here we examine how DNA methylation contributes to sex specific stress vulnerability in adult animals. Mice of both sexes were exposed to variable stress and given a behavioral test battery to examine stress sensitivity. Female mice expressed depressionassociated behavior across all tests stress exposure whereas males were behaviorally resilient. Markers of pre and post-synaptic plasticity and spine morphology were examined using a combination o…

Modelling the relationship between sexual reproduction and rhizome growth in Posidonia oceanica (L.) Delile

2006

The relationship between flowering and growth performance of Posidonia oceanica (L.) Delile in meadows distributed along the south-eastern coast of Sicily (Italy) was investigated by means of a statistical model (generalized linear mixed model) combined with the lepidochronological analysis. Over a 28-year period, 67 floral stalk remains were observed. The highest flowering index was recorded in lepidochronological year 1998 (10.1%) and the Inflorescence Frequency per age showed a clear decrease corresponding to 15-year-old shoots. The sexual reproductive event had positive effects on rhizome elongation (cm year−1) and leaf production (no. leaves year−1) in the same flowering year, whilst n…

Työstä perheeseen -ristiriidan yleisyys sekä yhteydet työn stressitekijöihin ja hyvinvointiin

2000

Profiles of early career insecurity and its outcomes in adolescence : A four‐wave longitudinal study

2023

This study investigated the developmental profiles of perceived early career insecurity (ECI) and their outcomes among adolescents (n = 1416) during a critical educational transition from basic education to upper secondary education. We found three distinct latent profiles with varying amounts of ECI: Profile 1: Moderate and decreasing ECI before the transition (57%); Profile 2: Low-decreasing ECI before the transition but increasing ECI after the transition (31%); and Profile 3: High and stable ECI during the transition (12%). Moreover, the ECI profiles related to school and life satisfaction as well as to school stress and dropout intentions in a meaningful way consistent with the stresso…

Effects of Using Standing Versus Sitting Workstations on the Well-­Being at Work of Software Professionals

2016

Although people admittedly are one of the most valuable assets of many software companies, relatively little academic research has been done from the well-being at work aspect of software professionals. This intervention study aims to address this gap in prior research by examining the potential effects of using standing instead of sitting workstations on the well-being at work of software professionals in terms of physical activity, mental alertness, and stress. The two measurements before and after the intervention were conducted in June and September 2015 for 29 employees of a local site of a large Finnish software company by using questionnaires and the Firstbeat Lifestyle Assessment se…

Effect of Slaughtering Methods on Stress And Quality Of Caged Bluefin Tuna (Thunnus Thynnus)

2008

Effects of Social Hierarchy Establishment on Stress Response and Cell Phagocytosis in Gilt-Head Sea Bream (Sparus aurata)

2022

Social stress can affect the ability of fish to respond to various stressors, such as pathogens or environmental variations. In this paper, the effects of social stress on gilt-head bream (Sparus aurata) were investigated. To study the effects of physiological stress, we evaluated biochemical and cellular parameters, such as cortisol, glucose, lactate, osmolarity, and phagocytosis, 24 h after the establishment of social hierarchy in a group of three fish. Social hierarchy was determined and characterized by behavioral observation (aggressive acts and feeding order) of the specimens (dominant: “α”; subordinate: “β” and “γ”). After the esta…

seabream(Sparus aurata)hierarchies of social behaviour affects stress responses and immunity

2014

Uztvertais skolotāju atbalsts, sociāli emocionālais distress un sociāli emocionālā veselība 14-17 gadus veciem jauniešiem

2020

Šī pētījuma ietvaros tika veikta uztvertā skolotāju atbalsta, sociāli emocionālā distresa un sociāli emocionālās veselības sakarību un atšķirību izpēte, izmantojot psiholoģiskās veselības duālo faktoru modeli, kura ietvaros psiholoģiskās veselības pozitīvie un negatīvie aspekti tiek pētīti kombinēti, veidojoties četrām psiholoģiskās veselības apakšgrupām: plaukstoši jaunieši (zemi distresa simptomi un augsti psiholoģiskie resursi), trausli jaunieši (zemi distresa simptomi un zemi psiholoģiskie resursi), simptomātiski, bet apmierināti jaunieši (augsti distresa simptomi un augsti psiholoģiskie resursi) un satraukti jaunieši (augsti distresa simptomi un zemi psiholoģiskie resursi). Pētījumā pi…