Search results for "Function"

Mechanisms of endothelial cell activation by endocannabinoid 2-arachidonoylglycerol

2020

Abstract Background Endothelial dysfunction promotes atherogenesis, vascular inflammation, and thrombus formation. Reendothelialization after angioplasty is required in order to restore vascular function and to prevent stent thrombosis. The endocannabinoid (eCB) 2-arachidonoylglycerol (2-AG) is a known modulator of inflammation. Earlier studies have demonstrated the relevance of this endocannabinoid in human pathophysiology during coronary artery disease and in murine experimental atherogenesis. However, evidence on the impact of 2-AG on endothelial cell function remains scarce. Methods Endothelial repair was studied in two treatment groups of wildtype mice following electrical denudation o…

Corrigendum to “A Drosophila model of GDAP1 function reveals the involvement of insulin signalling in the mitochondria-dependent neuromuscular degene…

2019

Retinoic Acid and the Gut Microbiota in Alzheimer’s Disease: Fighting Back-to-Back?

2019

Background:There is growing evidence that the gut microbiota may play an important role in neurodegenerative diseases such as Alzheimer’s disease. However, how these commensals influence disease risk and progression still has to be deciphered.Objective:The objective of this review was to summarize current knowledge on the interplay between gut microbiota and retinoic acid. The latter one represents one of the important micronutrients, which have been correlated to Alzheimer’s disease and are used in initial therapeutic intervention studies.Methods:A selective overview of the literature is given with the focus on the function of retinoic acid in the healthy and diseased brain, its metabolism…

Perceived impact of anger on performance of skilled karate athletes

2011

Abstract Objective Although previous research has provided evidence of the facilitating effects of anxiety upon athletic performance, research attention on the impact of other discrete emotions has been scarce. Therefore, this study, based on the Individual Zones of Optimal Functioning (IZOF) model ( Hanin, 2000 , Hanin, 2003 , Hanin, 2007 ) investigated anger and anger-related symptoms and the functional impact upon karate performance. Method High-level karate athletes (N = 20; M age = 24.95, 17–38 yrs. old) were asked to recall their best and worst performances and to identify from two to three significant situations prior to, during, and after both performances. They completed the state …

l ‐carnitine: Structure and Function

2011

l-carnitine is found in nearly all living cells. l-carnitine present in human body can be either provided by a biosynthetic pathway or by food. Carnitine plays a major role in lipid and energy metabolism. In the human body, the primary role of l-carnitine is to shuttle long-chain fatty acids into the mitochondria where they are used to produce energy. l-carnitine is also involved in the peroxisomal oxidative metabolism and serves as a cofactor for various enzymatic reactions. Several reports suggest that l-carnitine may act as an anti-oxidant agent and limit the deleterious effects of free radicals. Many studies have estimated the role and the potential effectiveness of l-carnitine in vario…

An insect brain computational model inspired by Drosophila melanogaster: architecture description

2010

The fruit fly Drosophila melanogaster is an extremely interesting insect because it shows a wealth of complex behaviors, despite its small brain. Nowadays genetic techniques allow to knock out the function of defined parts or genes in the Drosophila brain. Together with specific mutants which show similar defects in those parts or genes, hypothesis about the functions of every single brain part can be drawn. Following these experiments, a computational model of the fly Drosophila has been designed with a view to its robotic implementation.

Vazodilatācijas intensitātes un insulīna rezistences rādītāju saistība ar endoteliālo (dis)funkciju raksturojošo signālmolekulu koncentrācijām hronis…

2013

ANOTĀCIJA Pētījuma mērķis ir noskaidrot smēķēšanas ierosināta iekaisuma un oksidatīvā stresa ietekmi uz insulīna rezistences un endotēlija disfunkcijas attīstību un to savstarpējo sakarību. Pētījumā piedalījās 128 dalībnieki (starp kuriem 52 personām konstatējām dislipidēmiju), kuriem tika noteiktas ar endotēlija funkcijām saistītu signālmolekulu seruma koncentrācijas, vazodilatācijas intensitāte ādas mikrocirkulācijā un insulīna rezistenci raksturojoši rādītāji. Rezultāti parādīja, ka smēķēšanas kumulatīvais efekts būtiski sekmē insulīna rezistences attīstību personām ar dislipidēmiju, bet smēķēšanas akūtais efekts caur iekaisuma signālmolekulām īslaicīgi samazina šūnu insulīna jutību neat…

Coach-created motivational climate and athletes’ adaptation to psychological stress : Temporal motivation-emotion interplay

2019

This two-wave study investigated the temporal interplay between motivation and the intensity and reported impact of athletes’ emotions in training settings. In total, 217 athletes completed self-report measures of motivational climate, motivation regulations, emotional states (i.e., pleasant states, anger, and anxiety) experienced before practice at two time points during a 3-month period. Latent change score modeling revealed significantly negative paths from task-involving climate at time 1 to the latent change in the intensity of dysfunctional anxiety and anger, and significantly positive paths from ego-involving climate at time 1 to the latent change in dysfunctional anger (i.e., intens…

Unraveling biotic interactions determining soil microbial community assembly and functioning

2019

National audience; Microbial communities are at the heart of all ecosystems and yet, a sound understanding of the ecological processes governing the assembly of these communities in the environment is missing. To address the role of biotic interactions in assembly and functioning of the soil microbiota, we used a top down manipulation approach based on the removal of various populations in a natural microbial community. Suspensions of the soil microbiota were subjected to various biocidal and filtration treatments before being inoculated into the same sterilized soil. We hypothesized that if biotic interactions are an important shaping force of the microbiota assembly, removal of microbial …

Funcionamiento neurocognitivo y psicosocial de pacientes con trastorno bipolar en una unidad de salud mental

2018

INTRODUCCION: Existe evidencia de que los pacientes que padecen Trastoro Bipolar (TB), e incluso sus familiares sanos, presentan patrones característicos de afectación de ciertos dominios neurocognitivos que persisten tras la remisión clínica o período de eutimia. La pérdida de funcionalidad psicosocial de estos pacientes se predice mejor con la presencia de alteraciones cognitivas que con variables clínicas o evolutivas. El clínico asistencial debería conocer si existe afectación o deterioro en las funciones neurocognitivas de sus pacientes pero en el medio asistencial cotidiano es difícil poder evaluar adecuadamente las funciones cognitivas y tampoco se acostumbra a cuantificar la funcion…