Search results for "Cerebro"
showing 10 items of 539 documents
El papel del ejercicio físico en la inducción de BDNF y sus vías de señalización en el sistema nervioso central. Aplicación neurobiológica en modelos…
2014
La actividad física previene numerosas patologías y mejora muchos rasgos fisiopatológicos en diferentes enfermedades. El ejercicio ha sido asociado clásicamente con beneficios en desórdenes musculares y metabólicos. Sin embargo, los efectos del ejercicio en la función cerebral, especialidad conocida como “Neurobiología del ejercicio”, han cobrado gran importancia en los últimos años. Los efectos beneficiosos del ejercicio físico han sido establecidos en muchas enfermedades tales como la enfermedad de Alzheimer, el Parkinson, la esclerosis lateral amiotrófica, la esquizofrenia, el trastorno bipolar y los trastornos depresivos, entre otros. Estos hallazgos han llevado a utilizar el ejercicio …
Gošē slimības skrīnings pacientiem ar splenomegāliju, hepatomegāliju un trombocitopēniju
2018
Ievads. Gošē slimība ir viena no visbiežāk sastopamajām lizosomālās uzkrāšanās slimībām. Tās manifestēšanās vecuma un klīniskās ainas dažādības dēļ ir apgrūtināta slimības laicīga diagnostika. Mērķtiecīga slimības diagnostika ļautu laicīgi atpazīt skartos indivīdus un uzsākt nepieciešamo ārstēšanu, izvairoties no komplikācijām. Mērķis. Skrīnēt pacientus ar splenomegāliju, hepatomegāliju un/vai trombocitopēniju lai atklātu Gošē slimību un noteiktu tās izplatību Latvijas populācijā. Metodes. Darba ietvaros tika veikts prospektīvs pētījums, kura laikā RAKUS stacionāra LIC nodaļās tika atlasīti 100 pacienti ar splenomegāliju, hepatomegāliju un/vai trombocitopēniju. Pacientu nodotajos sausā asin…
Monitorización e individualización posológica de glucocerebrosidasa en pacientes con enfermedad de Gaucher Tipo I
2018
La enfermedad de Gaucher tipo I (EG1) es una enfermedad de depósito lisosomal causada por una deficiencia de la enzima glucocerebrosidasa, cuyo tratamiento consiste en la reposición mediante la administración exógena de la enzima deficiente, denominada terapia enzimática sustitutiva(TES). Actualmente, existe una gran controversia y una elevada variabilidad en la dosificación de la TES y en los regímenes utilizados en la práctica clínica debido a la amplia variabilidad observada en la respuesta a la TES; además las modificaciones de dosis para objetivar respuesta al tratamiento se alargan entre 12-24 meses, en una terapia con un elevado impacto económico al sistema nacional de salud. Sin emb…
Design of novel targeted polymer therapeutics as combination therapy for the treatment of brain metastasis - overcoming the blood-brain barrier
2022
El cáncer de mama es la segunda causa más común de metástasis cerebrales, siendo el cáncer de mama HER2 positivo y el triple negativo (CMTN) los subtipos con mayor incidencia. Las metástasis cerebrales conllevan un mal pronóstico (la supervivencia de los pacientes con CMTN que desarrollan metástasis cerebrales oscila entre tres y cuatro meses) y deterioro neurológico. El tratamiento de las metástasis cerebrales de cáncer de mama se basa en terapias locales, ya que la barrera hematoencefálica impide la acumulación de terapias administradas sistémicamente en el cerebro. En este contexto, nosotros hemos desarrollado nuevos conjugados polipéptido-fármaco dirigidos a cerebro, biodegradables y bi…
Differences in intercellular communication during clinical relapse and gadolinium-enhanced MRI in patients with relapsing remitting multiple sclerosi…
2018
This study was designed based on the hypothesis that changes in both the levels and surface marker expression of extracellular vesicles (EVs) isolated from the cerebrospinal fluid (CSF) may be associated with the clinical form, disease activity, and severity of multiple sclerosis (MS). The analyzes were performed on subjects affected by MS or other neurological disorders. EVs, which were isolated by ultracentrifugation of CSF samples, were characterized by flow cytometry. A panel of fluorescent antibodies was used to identify the EV origin: CD4, CCR3, CCR5, CD19, and CD200, as well as isolectin IB4. The Mann–Whitney U-test and Kruskal–Wallis test were used for statistical analyzes. EVs isol…
Magnetic Resonance Venography of chronic cerebrospinal venous insufficiency in patients with associated multiple sclerosis
2011
Background: Multiple sclerosis (MS) is a chronic disease with not well understood etiology. Recently, a possible association of MS with compromised venous outflow from the brain and spinal cord has been studied (chronic cerebrospinal venous insufficiency – CCSVI). Angioplasties of internal jugular veins (IJV) and azygous vein (AV) have given promising results, with improvements in patients’ clinical status. Material/Methods: 830 patients with clinically defined MS were scanned from the level of sigmoid sinuses to the junction with brachiocephalic veins, as well as at the level of AV. T2-weighted, 2D TOF and FIESTA sequences were used. Results: The examination revealed a slower blood flow in…
Cerebrospinal Fluid Tau Protein Levels and <sup>18</sup>F-Fluorodeoxyglucose Positron Emission Tomography in the Differential Diagnosis o…
2010
<i>Aims:</i> In this study, we aimed to compare cerebrospinal fluid (CSF) levels of total tau (t-tau), phosphorylated tau (p-tau<sub>181</sub>) and positron emission tomography with <sup>18</sup>F-fluorodeoxyglucose (FDG-PET) in the differential diagnosis of Alzheimer’s disease (AD) under clinical conditions. <i>Method:</i> In a cross-sectional, blinded, single-center study, we examined a sample of 75 unselected memory clinic patients with clinical diagnoses of dementia of Alzheimer type (DAT; n = 24), amnestic mild cognitive impairment (MCI; n = 16), other dementias (n = 13) and nondemented controls (n = 22). Discriminative accuracy, sensitiv…
EndothelinA receptor antagonist BSF-208075 causes immune modulation and neuroprotection after stroke in gerbils.
2005
Leukocytes contribute to the ischemia-reperfusion injury. Recent studies suggested endothelins could be important mediators for leukocyte activation in stroke. We tested if the endothelinA receptor antagonist BSF-208075 (ambrisentan) could reduce an ischemic lesion by modulation of leukocyte-endothelium interactions. Twenty-four gerbils underwent either a sham operation (n=6) or 15 min of bilateral carotid artery occlusion resulting in global cerebral ischemia. Ischemic animals received normal saline (n=6), 5 mg/kg BSF-208075 (n=6) or 30 mg/kg (n=6) administered intravenously at 10 min of reperfusion. Leukocytes rolling or adhering to endothelium were counted by intravital microscopy in par…
Role of Hemodynamic Forces in Unruptured Intracranial Aneurysms: An Overview of a Complex Scenario.
2017
Background An understanding of the natural history of unruptured intracranial aneurysms (IAs) has always played a critical role in presurgical or endovascular planning, to avoid possibly fatal events. Size, shape, morphology, and location are known risk factors for rupture of an aneurysm, but morphologic parameters alone may not be sufficient to perform proper rupture risk stratification. Methods We performed a systematic PubMed search and focused on hemodynamics forces that may influence aneurysmal initiation, growth, and rupture. Results We included 223 studies describing several hemodynamic parameters related to aneurysm natural history. In these studies, different modalities of aneurysm…
Acute cerebrovascular manifestation of Takayasu arteritis
2011
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