File Name: stress cognitive impairment and cell adhesion molecules file.zip
- Cell Adhesion Molecules and Protein Synthesis Regulation in Neurons
- Activation of group 2 innate lymphoid cells alleviates aging-associated cognitive decline
- Th17 and Cognitive Impairment: Possible Mechanisms of Action
Cell Adhesion Molecules and Protein Synthesis Regulation in Neurons
Chronic stress is a risk factor for the development of psychopathologies characterized by cognitive dysfunction and deregulated social behaviours. We tested the hypothesis that proteolytic processing of nectins by matrix metalloproteinases MMPs , an enzyme family that degrades numerous substrates, including cell adhesion molecules, is involved in hippocampal effects induced by chronic restraint stress. Author s van der Kooij, Michael A. Published in Nature Communications. Volume 5. Issue Date
Evidence suggests that the neural cell adhesion molecule NCAM is an important molecular constituent of adaptive and maladaptive circuit re- organization in the central nervous system. Here, we further investigate its putative involvement in amygdala and hippocampus functions during context fear memory formation. Using laser capture microdissection and quantitative RT—PCR, we show high NCAM mRNA expression levels in the lateral and basolateral subnuclei of the amygdala, as well as their training intensity- and context-dependent regulation during fear memory consolidation. Together, these results suggest an involvement of NCAM-mediated cell recognition processes in information processing of the amygdalo-hippocampal system and in the amygdala-mediated modulation of context fear memory according to stimulus salience. Appropriate determination of stimulus salience during memory formation is critical for an individual's adaptive responding to the environment, and disturbances of this function are evident in psychopathological states such as mood and anxiety disorders. Yet the cellular and molecular mechanisms that underlie salience determination remain elusive. NCAM is a glycoprotein of the immunoglobulin superfamily, which mediates homophilic and heterophilic cell—cell and cell—matrix interactions in the developing and adult CNS.
Activation of group 2 innate lymphoid cells alleviates aging-associated cognitive decline
Address correspondence to Achille E. E-mail: achille. Achille E. Tchalla, Gregory A. Wellenius, Farzaneh A.
Th17 and Cognitive Impairment: Possible Mechanisms of Action
Cell adhesion molecules CAMs mediate interactions of neurons with the extracellular environment by forming adhesive bonds with CAMs on adjacent membranes or via binding to proteins of the extracellular matrix. Binding of CAMs to their extracellular ligands results in the activation of intracellular signaling cascades, leading to changes in neuronal structure and the molecular composition and function of neuronal contacts. Ultimately, many of these changes depend on the synthesis of new proteins. In this review, we summarize the evidence showing that CAMs regulate protein synthesis by modulating the activity of transcription factors, gene expression, protein translation, and the structure and distribution of organelles involved in protein synthesis and transport.
Higher circulating concentrations of cellular adhesion molecules CAMs can be used as markers of endothelial dysfunction. Given that the brain is highly vascularized, we assessed whether endothelial function is associated with cognitive performance. We included subjects with levels of circulating soluble CAMs measured in year 7 or 15 and cognitive function testing in year 25 —, ages 43—
Disclosures: Dr. Yang reported a patent to US Provisional Application no. No other disclosures were reported. Robison, Xiuli Zhao, Shanti S. Kuentzel, Sridar V.
Atherosclerosis is characterized by interaction between immune and vascular endothelial cells which is mediated by adhesion molecules occurring on the surface of the vascular endothelium leading to massive release of proinflammatory mediators. Ginkgo biloba L. However, in some countries, the allowed amount of solvent is limited to ethanol, thus implying that the usage of a standardized Ginkgo biloba ethanol extract may be preferred in all those cases, such as for food supplements. The present paper investigates if ethanol and acetone extracts, with comparable standardization, may be considered comparable in terms of biological activity, focusing on the radical scavenging and anti-inflammatory activities.
Higher circulating concentrations of cellular adhesion molecules vascular cellular adhesion molecule-1, selectin, cognitive function, Wechsler D. Wechsler Adult Intelligence Scale – III (WAIS-III) Administration and Scoring Manual. Oxidative stress, inflammation, endothelial dysfunction and incidence.
Mini Review ARTICLE
T helper 17 Th17 cells represent a distinct population of immune cells, important in the defense of the organism against extracellular infectious agents. Because of their cytokine profile and ability to recruit other immune cell types, they are highly pro-inflammatory and are involved in the induction of several autoimmune disorders. Recent studies show that Th17 cells and their signature cytokine IL have also a role in a wide variety of neurological diseases. We will also investigate the mechanisms by which these cells enter the brain and induce brain damage, including direct effects of IL on brain cells and indirect effects mediated through disruption of the blood-brain barrier BBB , neurovascular dysfunction and gut-brain axis. Finally, therapeutic prospects targeting Th17 cells and IL will be discussed. It is well documented that T helper 17 Th17 cells are important in the defense of the organism against opportunistic pathogens of fungal or bacterial origin, making them a fundamental part of the adaptive immune system. Th17 cells have also a role in barriers protection, especially in the bowel, where they regulate the host response to microbiota and maintain the intestinal homeostasis Stockinger and Omenetti,
Пять человек. Четверо. Всего трое.
Девушка засмеялась: - Это же чудо-маркер. Я чуть кожу не содрала, пытаясь его стереть.
Стекла очков блеснули, и его пальцы снова задвигались в воздухе. Он, как обычно, записал имена жертв. Контакты на кончиках пальцев замкнулись, и на линзах очков, подобно бестелесным духам, замелькали буквы.