Search results for " STRESS"

Chernobyl Clean-Up Workers: 17 Years of Follow-Up in Latvia

2005

About 5000 Latvian inhabitants took part at clean up works after accident on Chernobyl Nuclear Power Plant during 1986–1991. Clinical follow-up programme showed that clean-up workers having higher morbidity rate compare to the general population with prevalence of poly–symptomatic sicknesses caused by depression of immune system. Dose reconstruction made by Electron Paramagnetic Resonance (EPR) indicated underestimation of officially documented doses by factor 2-10. Blood measurement performed by Inductively Coupled Plasma Mass Spectrometry (ICP MS) indicated elevated concentration of lead, cadmium and thorium. It was assumed that toxic compounds, physical stress, incorporated long-lived ra…

Influence of arbuscular mycorrhizae on biomass production and nitrogen fixation of berseem clover plants subjected to water stress.

2014

Several studies, performed mainly in pots, have shown that arbuscular mycorrhizal symbiosis can mitigate the negative effects of water stress on plant growth. No information is available about the effects of arbuscular mycorrhizal symbiosis on berseem clover growth and nitrogen (N) fixation under conditions of water shortage. A field experiment was conducted in a hilly area of inner Sicily, Italy, to determine whether symbiosis with AM fungi can mitigate the detrimental effects of drought stress (which in the Mediterranean often occurs during the late period of the growing season) on forage yield and symbiotic N2 fixation of berseem clover. Soil was either left under water stress (i.e., rai…

Peripheral artery disease: potential role of ACE-inhibitor therapy

2008

Giuseppe Coppola, Giuseppe Romano, Egle Corrado, Rosa Maria Grisanti, Salvatore NovoDepartment of Internal Medicine, Cardiovascular and Nephro-Urological Diseases, Chair of Cardiovascular Disease, University of Palermo, Palermo, ItalyAbstract: Subjects with peripheral arterial disease (PAD) of the lower limbs are at high risk for cardiovascular and cerebrovascular events and the prevalence of coronary artery disease in such patients is elevated. Recent studies have shown that regular use of cardiovascular medications, such as therapeutic and preventive agents for PAD patients, seems to be promising in reducing long-term mortality and morbidity. The angiotensin-converting-enzyme (ACE) system…

Chronic ethanol feeding causes oxidative stress in rat liver mitochondria. Prevention by S-adenosyl methionine

1999

Residual Stresses and Reactivity of Solids. Determination and Part Plaid in the Reaction Mechanisms

1996

Psychoeducational Challenges in Spanish Children With Dyslexia and Their Parents’ Stress During the COVID-19 Pandemic

2021

BackgroundResearch during 2020 has been rapidly attending to the impact of COVID-19 on various dimensions of wellbeing (e.g., physical, psychological, lifestyle and routines) on adults and children around the world. However, less attention has focused on the psychoeducational impact on children and their families. To our knowledge, no currently available studies have looked specifically at the impact of COVID-19 on students with dyslexia and their families. Research on this topic is needed to offer greater support for this population of students and their families.ObjectiveThe main objective of this paper is to examine the psychoeducational impact of the required COVID-19 quarantine in Spai…

Macrophage migration inhibitory factor is critically involved in basal and fluoxetine-stimulated adult hippocampal cell proliferation and in anxiety,…

2011

Intensive research is devoted to unravel the neurobiological mechanisms mediating adult hippocampal neurogenesis, its regulation by antidepressants, and its behavioral consequences. Macrophage migration inhibitory factor (MIF) is a pro-inflammatory cytokine that is expressed in the CNS, where its function is unknown. Here, we show, for the first time, the relevance of MIF expression for adult hippocampal neurogenesis. We identify MIF expression in neurogenic cells (in stem cells, cells undergoing proliferation, and in newly proliferated cells undergoing maturation) in the subgranular zone of the rodent dentate gyrus. A causal function for MIF in cell proliferation was shown using genetic (M…

Bacillus thuringiensis treatment modulate the HSP70 expression in larva and adult brain of Rhynchophorus ferrugineus

2013

To study the pathogen-host relationship, we used the model of the entomopathogenic bacterium Bacillus thuringiensis (Bt) and Rhynchophorus ferrugineus, a quarantine pest that attacks palm trees. In particular, we focused on the Bt stress-induced infections. We studied the effect of Bt on larval and adult growth, and on the expression of the heat shock proteins (HSPs), rapidly synthesized in the cell after exposure to stress including pathogens. Bt has negative effects on larval and adult growth, on total hemocytes counts and on the hemocyte type. HSP70 was evaluated in the supernatant of the brain lysate obtained from larvae and adults fed with sublethal doses of Bt. HSP70 expression was mo…

Atšķirīgas krāsas perifērā fona ietekme uz meklēšanas uzdevuma izpildi

2016

Bakalaura darbs rakstīts latviešu valodā uz 32 lapām, satur 27 attēlus un 51 atsauci uz literatūras avotiem. Darba mērķis: noskaidrot perifērās fona krāsas ietekmi uz meklēšanas uzdevuma laiku un precizitāti. Metode: uzdevums tiek veikts specializētā meklēšanas uzdevuma programmā uz datora ekrāna. Tests sastāv no melniem Landolta kvadrātiem, sakārtotiem secīgi, ar atvērumiem vienā no četriem virzieniem. Meklēšanas uzdevums ir ar mainīgu fona krāsu. Secinājumi: perifērā fona krāsa ietekmē uzdevuma izpildes koriģēto laiku. Visātrāk un visprecīzāk uzdevums tiek izpildīts uz zilas krāsas fona, bet vislēnāk un neprecīzāk – uz zaļas krāsas fona. Atslēgas vārdi: meklēšanas uzdevums, vizuālais stre…

Oxygen regulated gene expression in facultatively anaerobic bacteria

1994

In facultatively anaerobic bacteria such as Escherichia coli, oxygen and other electron acceptors fundamentally influence catabolic and anabolic pathways. E. coli is able to grow aerobically by respiration and in the absence of O2 by anaerobic respiration with nitrate, nitrite, fumarate, dimethylsulfoxide and trimethylamine N-oxide as acceptors or by fermentation. The expression of the various catabolic pathways occurs according to a hierarchy with 3 or 4 levels. Aerobic respiration at the highest level is followed by nitrate respiration (level 2), anaerobic respiration with the other acceptors (level 3) and fermentation. In other bacteria, different regulatory cascades with other underlyin…