Br J Pharmacol. Oct;(4) doi: /j x. Experimental autoimmune encephalomyelitis (EAE) as a model for multiple. La inducción de la encefalomielitis autoinmune experimental (EAE) mediante la glicoproteína de la mielina del oligodendrocito (MOG) en ratones C57BL/6. Keywords: multiple sclerosis, encephalomyelitis, autoimmune, experimental, Latin Estudios sobre la encefalomielitis autoinmune experimental (EAE) en.

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A low-viscosity epoxy resin embedding medium for electron microscopy. Se centrifuga a 2. Autoinmuhe has a complex neuropharmacology, and many of the drugs that are in current or imminent use in MS have been developed, tested or validated on the basis of EAE studies. The relevance of animal models in fxperimental sclerosis research.

Experimental Autoimmune Encephalomyelitis Animal description Experimental autoimmune encephalomyelitis EAE is the oldest and most frequently used model system for studying MS in laboratory animals.

Experimental autoimmune encephalomyelitis (EAE) as a model for multiple sclerosis (MS).

By using this site, you agree to the Terms of Use and Privacy Policy. For example, T-cell receptor TCR transgenic mice carry T cells engineered to respond to specific brain antigens. Se centrifuga a 1.

The maximum clinical score of the diseased animals reached high values during the development of EAE, and there was correspondence between clinical signs, the results of molecular assays and the observed ultrastructural modifications, which consisted mainly of demyelination and axonal damage at the spinal cord. Retrieved from ” https: Many drugs that researchers are testing encefalimielitis neuroprotective agents might also exert immunosuppressive effects; that characteristic makes it difficult to determine whether a compound acts directly on neurons or simply quells the inflammation that damages them.

La figura ha sido modificado a partir de Barthelmes et al. Autoinmuune to criteria from Vogel et al.

Experimental autoimmune encephalomyelitis (EAE) as a model for multiple sclerosis (MS).

EAE generally targets the spinal cord and sometimes the cerebellum, causing inflammation followed by demyelination and axonal damage. Microglia are activated to become competent antigen presenting and effector cells in the inflammatory environment of the Theiler’s virus model of multiple sclerosis, Journal of Neuroimmunology, VolumeIssues 1—2, NovemberPagesdoi: Please check your Internet connection and reload this page.

Model evaluation Clinical monitoring of EAE The clinical severity of the disorder in all three experimental groups was monitored by daily double-blind observations, performed always at the same hour, by a trained observer, starting from day 0 and until day 28 after induction.

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Click here for the english version. In vitro and in vivo pharmacological models to assess demyelination and remyelination. Los ratones con EAE desarrollar un curso de la enfermedad progresiva.

Weakness in the distal segment of the tail and motor irregularities during walking are the first symptoms of damage to the central nervous enceefalomielitis. Recently it has been found that CSF from MS patients can carry the disease to rodents, opening the door to an alternative model.

Experimental Autoimmune Encephalomyelitis

You will only be able to see the first 20 seconds. Conservar la muestra en PBS en hielo. In the past 20 years, researchers have used transgenic techniques to develop new versions of the model and to expand its utility.

Relative quantification was performed using the following formula [18]: Este curso se divide en tres fases: Fill out the form below to receive a free trial or learn more about access: Commons category link is on Wikidata. Probar la especificidad de cada cebador. Centrifugar durante 6 min a xg a temperatura ambiente RT. The mice were immunized using alternating subcutaneous inoculations into the left or right flank of the animals at the thoracic level, in days 0 and 7.

Animals of the placebo-treated EAE group exhibited high clinical scores evidencing the appearance and progression of the disorder, whereas the animals treated with hydrocortisone improved significantly when compared to the diseased individuals. The typical susceptible rodent will debut with clinical symptoms around two weeks after immunization and present with a relapsing-remitting disease.

Another useful test is the observation of postural reflexes, performed by turning the animal on its back. The results indicate that the model has clinical value, and can be used to establish an adequate correlation for preclinical studies of new drugs against MS. Measurement of body weight Body weight for animals from the negative control group and the placebo-treated EAE group was evaluated daily, at the same hour every day, starting from day 7 and until day 28 after induction, using an analytical balance Denver Instrument XP, USA.

Demyelinating diseases of CNS Animal testing. When spinal cord samples were analyzed by transmission electron microscopy, the individuals from the negative control group exhibited compact, dense myelin sheaths and no signs of axonal damage Figure 4A.

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Proper formation of the emulsion was verified by encefallomielitis one drop onto a Encefalomjelitis dish containing PBS. Statistical analysis Statistical analyses were performed using the Prism 5. In the early days of EAE, studying disease states caused by injecting brain homogenate in different species helped pinpoint how particular tissue-specific molecules produce autoimmune reactions Krishnamoorthy and Wekerle, The present work describes specific adjustments to the experimental parameters described in the literature that were necessary when implementing this model under our conditions, demonstrating the presence of EAE in experimental animals by means of clinical evaluations, molecular assays and ultrastructural studies.

Experiments should be done in an actively induced model and a passive transfer model. Generation of a murine model of chronic progressive experimental autoimmune encephalomyelitis for molecular pharmacology studies in Multiple Sclerosis. Each inoculation delivered a total of ng of PT per animal. Ultrastructural study by transmission electron microscopy At the end of the study period, three animals each were randomly selected from the negative control and placebo-treated EAE groups and sacrificed by cervical dislocation.

Received in November, Epub Nov Another possibility is a decrease in appetite, which has been associated to the effects of leptin in this animal model [31]. Induction of experimental autoimmune encephalomyelitis We used essentially the method described by Pluchino et al. Demyelination is produced by injection of brain extracts, CNS proteins such as myelin basic proteinor peptides from such protein emulsified in an adjuvant such as complete Freund’s adjuvant.

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autoimnune This paper therefore describes all adjustments and procedures necessary to guarantee the reproducibility and trouble-free implementation of this model by other researchers of the field. In the negative control group, body weight increased steadily throughout the study, at a rate above that of diseased animals. Body weight is an important variable that provides information related to the degree of neurological deterioration in affected animals.