scholarly journals Intraventricular Neurilemmoma (Schwannoma): Shall GFAP Immunostaining Be Regarded as a Histogenetical Tag or as a Mere Histomimetical Trait?

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Miguel Fdo. Salazar ◽  
Martha Lilia Tena Suck ◽  
Daniel Rembao Bojórquez ◽  
Citlaltepetl Salinas Lara
Keyword(s):  
Latin American ◽  
Neoplastic Transformation ◽  
Benign Neoplasms ◽  
Intraventricular Tumour ◽  
Nerve Sheath ◽  
Spindle Cells ◽  
Left Lateral Ventricle ◽  
The Central Nervous System ◽  
Latin American Population

Neurilemmomas are benign neoplasms presumedly derived from Schwann cells which rarely originate within the central nervous system. Moreover, their intraventricular location has been seldom noticed with less than 30 cases reported worldwide. Here, we add another case study to the record as well as the fifth one in Latin American population. A 16-year-old boy without significant past clinical data debuted with headache and progressive left eye blindness during six months. Neuroimaging scans showed a bulky, multiloculated, intraventricular tumour emerging from the posterior horn of the left lateral ventricle. Microscopically, the lesion put on view the classical schwannian histology: spindle cells arranged in both compact and loosely textured areas. Verocay bodies were not present but vessel hyalinisation, pericellular reticulin, and senescent atypia were observed. The immunoperoxidase reactions were also consistent with neurilemmal differentiation; however, glial fibrillary acidic protein expression was widespread and unexpectedly seen. Traditionally conceived as “nerve sheath tumours” the dual immunophenotype herein demonstrated points to a different histogenetical pathway other than sheer Schwann cell derivation. As previously advised by some authors, neoplastic transformation from a multipotent stem cell may explain the occasional finding of these tumours in unconventional intracranial compartments.

The Use of Neuroplastic Principles Affects the Swallow Motor Plan of a Patient in Severe Cognitive Decline: A Case Study

2016 ◽  
Vol 1 (15) ◽  
pp. 79-83
Author(s):  
Ed Bice ◽  
Kristine E. Galek
Keyword(s):  
Central Nervous System ◽  
Cognitive Decline ◽  
Full Range ◽  
Movement Speed ◽  
Positive Outcomes ◽  
Verbal Cues ◽  
Motor Plan ◽  
Bolus Size ◽  
The Central Nervous System

Dysphagia is common in patients with dementia. Dysphagia occurs as a result of changes in the sensory and motor function of the swallow (Easterling, 2007). It is known that the central nervous system can undergo experience-dependent plasticity, even in those individuals with dementia (Park & Bischof, 2013). The purpose of this study was to explore whether or not the use of neuroplastic principles would improve the swallow motor plan and produce positive outcomes of a patient in severe cognitive decline. The disordered swallow motor plan was manipulated by focusing on a neuroplastic principles of frequency (repetition), velocity of movement (speed of presentation), reversibility (Use it or Lose it), specificity and adaptation, intensity (bolus size), and salience (Crary & Carnaby-Mann, 2008). After five therapeutic sessions, the patient progressed from holding solids in her mouth with decreased swallow initiation to independently consuming a regular diet with full range of liquids with no oral retention and no verbal cues.

Critical theory, the left and media policy: The Latin American progressive governments case study

2015 ◽  
Vol 0 (24) ◽  
pp. 95-126
Author(s):  
Ángel Badillo ◽  
◽  
Guillermo Mastrini ◽  
Patricia Marenghi ◽  
◽  
...  
Keyword(s):  
Critical Theory ◽  
Latin American ◽  
Media Policy

Resilient Factors in Students with Disabilities

2018 ◽  
Vol 5 (2) ◽  
pp. 23 ◽  
Author(s):  
Gustavo Rafael Escobar Delgado ◽  
Anicia Katherine Tarazona Meza ◽  
Andy Einstein García García
Keyword(s):  
Academic Performance ◽  
Students With Disabilities ◽  
Latin American ◽  
Descriptive Study ◽  
The Other ◽  
Disabled Students ◽  
Low Performance ◽  
The Relationship ◽  
Latin American Population

The research analyzes the relationship between factors of resilience and academic performance in disabled students studying at the Technical University of Manabí. It is a correlational descriptive study conducted with a population of 88 disabled students, of which two groups were selected, one with high academic performance and the other with low performance. A questionnaire was designed and applied to determine the level of quality of life and risk factors of adolescents. Resilience was measured with the SV-RES scale created for the Latin American population.

The transfer of European intercultural discourse towards Latin American educational actors: a Mexican case study

2011 ◽  
Vol 13 (1) ◽  
Author(s):  
Laura Mateos
Keyword(s):  
Latin American ◽  
Indigenous Education ◽  
The State ◽  
Intercultural Education ◽  
Bilingual Teachers ◽  
Ethnographic Data ◽  
Intellectual Networks ◽  
State Educational ◽  
Intercultural Discourse

This paper analyses the ways transfer of the discourse on interculturality and intercultural education, as it has been coined and shaped by European anthropologists and pedagogues, towards educational actors and institutions in Latin America. My ethnographic data illustrate how this intercultural discourse is currently transferred through intellectual networks to different kinds of Mexican actors who are actively “translating” this discourse into the post-indigenismo situation of “indigenous education” and ethnic claims making in Mexico. On the basis of fieldwork conducted in two different institutions in the state of Veracruz, the appropriation and re-interpretation of, as well as the resistance against, the European discourse of interculturality are studied by comparing the training of “intercultural and bilingual” teachers through the state educational authorities and the notion of intercultural education, as applied within the so-called “Intercultural University of Veracruz”.

scholarly journals P-160 Young Latin American population with colorectal cancer: Characteristics of bad prognosis

2021 ◽  
Vol 32 ◽  
pp. S154
Author(s):  
G. Calderillo-Ruiz ◽  
M. Herrera ◽  
V. Itzel ◽  
B. Carbajal-López ◽  
W. Muñoz ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Latin American ◽  
American Population ◽  
Latin American Population

scholarly journals Application of MRI for the Diagnosis of Neoplasms

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Ewa Bejer-Oleńska ◽  
Michael Thoene ◽  
Andrzej Włodarczyk ◽  
Joanna Wojtkiewicz
Keyword(s):  
Benign Neoplasms ◽  
Young Males ◽  
Classification Of Diseases ◽  
Icd 10 ◽  
Mri Scans ◽  
International Statistical Classification ◽  
The Central Nervous System ◽  
Spss Software ◽  
The Brain

Aim. The aim of the study was to determine the most commonly diagnosed neoplasms in the MRI scanned patient population and indicate correlations based on the descriptive variables. Methods. The SPSS software was used to determine the incidence of neoplasms within the specific diagnoses based on the descriptive variables of the studied population. Over a five year period, 791 patients and 839 MRI scans were identified in neoplasm category (C00-D48 according to the International Statistical Classification of Diseases and Related Health Problems ICD-10). Results. More women (56%) than men (44%) represented C00-D48. Three categories of neoplasms were recorded. Furthermore, benign neoplasms were the most numerous, diagnosed mainly in patients in the fifth decade of life, and included benign neoplasms of the brain and other parts of the central nervous system. Conclusions. Males ≤ 30 years of age with neoplasms had three times higher MRI scans rate than females of the same age group; even though females had much higher scans rate in every other category. The young males are more often selected for these scans if a neoplasm is suspected. Finally, the number of MRI-diagnosed neoplasms showed a linear annual increase.

Sodium and Potassium Fluxes in the Abdominal Nerve Cord of the Cockroach, Periplaneta Americana L

1961 ◽  
Vol 38 (2) ◽  
pp. 315-322
Author(s):  
J. E. TREHERNE
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Nerve Cord ◽  
Periplaneta Americana ◽  
Unit Area ◽  
Potassium Ions ◽  
Sodium Ions ◽  
Nerve Sheath ◽  
The Central Nervous System ◽  
Sodium And Potassium

1. The influx of sodium and potassium ions into the central nervous system of Periplaneta americana has been studied by measuring the increase in radioactivity within the abdominal nerve cord following the injection of 24NA and 42K. into the haemolymph. 2. The calculated influx of sodium ions was approximately 320 mM./l. of nerve cord water/hr. and of potassium ions was 312 mM./l. of nerve cord water/hr. These values are very approximately equivalent to an influx per unit area of nerve cord surface of 13.9 x 10-2 M cm. -2 sec.-1 for sodium and 13.5 x 10-12 M cm. -2 sec.-1 for potassium ions. 3. The relatively rapid influxes of these ions are discussed in relation to the postulated function of the nerve sheath as a diffusion barrier. It is suggested that a dynamic steady state rather than a static impermeability must exist across the sheath surrounding the central nervous system in this insect.

scholarly journals Testing a prediabetes screening approach for a Latin American population in Vancouver, Canada

2011 ◽  
Vol 3 (3) ◽  
pp. 329-338
Author(s):  
Liudmila Miyar Otero ◽  
Maylene Fong ◽  
Danielle Papineau ◽  
Sally Thorne ◽  
Maria Lucia Zanetti
Keyword(s):  
Latin American ◽  
American Population ◽  
Screening Approach ◽  
Latin American Population
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