Search results for "Protection"

Microtubule Dynamics and Neuronal Excitability: Advances on Cytoskeletal Components Implicated in Epileptic Phenomena

2020

AbstractExtensive researches have deepened knowledge on the role of synaptic components in epileptogenesis, but limited attention has been devoted to the potential implication of the cytoskeleton. The study of the development of epilepsy and hyperexcitability states involves molecular, synaptic, and structural alterations of neuronal bioelectric activity. In this paper we aim to explore the neurobiological targets involved in microtubule functioning and cytoskeletal transport, i.e. how dynamic scaffolding of microtubules can influence neuronal morphology and excitability, in order to suggest a potential role for microtubule dynamics in the processes turning a normal neuronal network in a hy…

Identification of inflammatory neuronal injury and prevention of neuronal damage in multiple sclerosis: hope for novel therapies?

2013

Importance Although multiple sclerosis (MS) has long been considered the prototype for an inflammatory, demyelinating disease of the central nervous system, modern histopathology and imaging techniques show that significant damage to neuronal structures already start occurring in the earliest stages of the disease. As the disease progresses, the extent of neuronal pathology accumulates. Therapeutic progress in terms of the prevention of increased disability has only just begun. Objective To review possible diagnostic improvements of neuronal compartment pathology as well as direct therapeutic interventions based on reports from the last decade and outline clinical results from studies and p…

Neurodegeneration in excitotoxicity, global cerebral ischemia, and target deprivation: A perspective on the contributions of apoptosis and necrosis.

1998

In the human brain and spinal cord, neurons degenerate after acute insults (e.g., stroke, cardiac arrest, trauma) and during progressive, adult-onset diseases [e.g., amyotrophic lateral sclerosis, Alzheimer's disease]. Glutamate receptor-mediated excitotoxicity has been implicated in all of these neurological conditions. Nevertheless, effective approaches to prevent or limit neuronal damage in these disorders remain elusive, primarily because of an incomplete understanding of the mechanisms of neuronal death in in vivo settings. Therefore, animal models of neurodegeneration are crucial for improving our understanding of the mechanisms of neuronal death. In this review, we evaluate experimen…

Neuroprotection by erythropoietin and darbopoietin-alfa following experimental intracerebral hemorrhage

2008

Mildronate and its neuroregulatory mechanisms: targeting the mitochondria, neuroinflammation, and protein expression.

2013

This review for the first time summarizes the data obtained in the neuropharmacological studies of mildronate, a drug previously known as a cardioprotective agent. In different animal models of neurotoxicity and neurodegenerative diseases, we demonstrated its neuroprotecting activity. By the use of immunohistochemical methods and Western blot analysis, as well as some selected behavioral tests, the new mechanisms of mildronate have been demonstrated: a regulatory effect on mitochondrial processes and on the expression of nerve cell proteins, which are involved in cell survival, functioning, and inflammation processes. Particular attention is paid to the capability of mildronate to stimulate…

Tradeoffs in the evolution of plant farming by ants

2020

Diverse forms of cultivation have evolved across the tree of life. Efficient farming requires that the farmer deciphers and actively promotes conditions that increase crop yield. For plant cultivation, this can include evaluating tradeoffs among light, nutrients, and protection against herbivores. It is not understood if, or how, nonhuman farmers evaluate local conditions to increase payoffs. Here, we address this question using an obligate farming mutualism between the ant Philidris nagasau and epiphytic plants in the genus Squamellaria that are cultivated for their nesting sites and floral rewards. We focused on the ants' active fertilization of their crops and their protection against he…

Therapeutic effect of fractionated by ultrafiltration red beetroot (Beta vulgaris l.) juice in rats with food-induced fatty liver

2019

The prevalence of non-alcoholic fatty liver disease (NAFLD), being a component of metabolic syndrome, has increased (15-27%) in the industrialized world. The deep mechanism of this pathology is not clear, but it is multifactorial. There is a huge amount of food supplements and medicines with hepatoprotective effect on the market, but the NAFLD problem is far from being resolved. Hepatoprotective products have to provide wide spectra of biological effects, including antioxidant, hypolipidemic, anti-inflammatory action. It is peculiar to natural compounds, including red beetroot juice, which is well known to most of the population. This is important in view of the high prevalence of NAFLD. Th…

Emergence and Phylodynamics of Citrus tristeza virus in Sicily, Italy

2013

Citrus tristeza virus (CTV) outbreaks were detected in Sicily island, Italy for the first time in 2002. To gain insight into the evolutionary forces driving the emergence and phylogeography of these CTV populations, we determined and analyzed the nucleotide sequences of the p20 gene from 108 CTV isolates collected from 2002 to 2009. Bayesian phylogenetic analysis revealed that mild and severe CTV isolates belonging to five different clades (lineages) were introduced in Sicily in 2002. Phylogeographic analysis showed that four lineages co-circulated in the main citrus growing area located in Eastern Sicily. However, only one lineage (composed of mild isolates) spread to distant areas of Sici…

Organisational responses to regulatory pressure: A case study of a Norwegian Research University’s strategic compliance to GDPR

2020

Master's thesis in Innovative governance and public management (ME523) This thesis study seeks to test Oliver’s (1991) theory for prediction of Strategic Responses to Institutional Processes, against the case of initial responses taken by a Norwegian research university when faced with General Data Protection Regulation (GDPR) of European Union (EU).This thesis explores how different parts of the same organisation respond to and manage institutional pressure. It uses a case study of a Norwegian research university’s response to the European Union’s General Data Protection Regulation (GDPR). An exploratory case study design frame was used to address the research question, and qualitative dat…

El cumplimiento de la obligación

2021

Il saggio offre una sintetica panoramica sulla disciplina italiana dell'adempimento e sulle principali questioni interpretative sorte negli ultimi anni. Lo studio intercala l'esposizione del diritto italiano con il confronto con il diritto colombiano delle obbligazioni. La seconda parte è dedicata ad alcune delle questioni dogmatiche più rilevanti, a partire dalla nozione di adempimento e dalle teorie sull'oggetto dell'obbligazione. The essay offers a concise overview of the Italian discipline of performance and the main interpretative issues that have arisen in recent years. The study intersperses the exposition of Italian law with the comparison with Colombian law of obligations. The seco…