Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 3 de 3
Filter
Add more filters










Publication year range
1.
PLoS One ; 9(11): e113090, 2014.
Article in English | MEDLINE | ID: mdl-25402503

ABSTRACT

OBJECTIVE: CD5 plays a crucial role in autoimmunity and is a well-established genetic risk factor of developing RA. Recently, evidence of positive selection has been provided for the CD5 Pro224-Val471 haplotype in East Asian populations. The aim of the present work was to further analyze the functional relevance of non-synonymous CD5 polymorphisms conforming the ancestral and the newly derived haplotypes (Pro224-Ala471 and Pro224-Val471, respectively) as well as to investigate the potential role of CD5 on the development of SLE and/or SLE nephritis. METHODS: The CD5 SNPs rs2241002 (C/T; Pro224Leu) and rs2229177 (C/T; Ala471Val) were genotyped using TaqMan allelic discrimination assays in a total of 1,324 controls and 681 SLE patients of Spanish origin. In vitro analysis of CD3-mediated T cell proliferative and cytokine response profiles of healthy volunteers homozygous for the above mentioned CD5 haplotypes were also analyzed. RESULTS: T-cell proliferation and cytokine release were significantly increased showing a bias towards to a Th2 profile after CD3 cross-linking of peripheral mononuclear cells from healthy individuals homozygous for the ancestral Pro224-Ala471 (CC) haplotype, compared to the more recently derived Pro224-Val471 (CT). The same allelic combination was statistically associated with Lupus nephritis. CONCLUSION: The ancestral Ala471 CD5 allele confers lymphocyte hyper-responsiveness to TCR/CD3 cross-linking and is associated with nephritis in SLE patients.


Subject(s)
CD5 Antigens/genetics , Haplotypes/genetics , Lupus Erythematosus, Systemic/genetics , Lupus Nephritis/etiology , Lymphocyte Activation/immunology , Polymorphism, Genetic/genetics , T-Lymphocytes/immunology , Alleles , Autoimmunity/immunology , Case-Control Studies , Genetic Predisposition to Disease , Genotype , Humans , Lupus Erythematosus, Systemic/complications , Lupus Erythematosus, Systemic/immunology , Lupus Nephritis/diagnosis
2.
Acta neurol. colomb ; 20(2): 72-76, jun. 2004.
Article in Spanish | LILACS | ID: lil-424708

ABSTRACT

El síncope es un problema común para médicos generales, neurólogos y cardiólogos. Un correcto conocimiento de la fisiopatología y de las causas más comunes es esencial para alcanzar una buena estrategia en el diagnóstico y tratamiento. Es necesario conocer las principales indicaciones de cada ayuda diagnóstica teniendo en cuenta la baja sensibilidad reportada para cada una de las mismas. Discutimos a continuación los principales conceptos del síncope dirigidos a generar la mejor aproximación de este signo en nuestros escenarios clínicos


Subject(s)
Syncope/diagnosis , Syncope/physiopathology , Syncope/drug therapy
3.
Rev. colomb. cardiol ; 6(4): 188-92, abr. 1998. ilus
Article in Spanish | LILACS | ID: lil-219496

ABSTRACT

Los teratomas benignos mediastinales son tumores de células germinales poco comunes, ocurriendo en un 5 por ciento a 8 por ciento de todos los tumores de esta localización; más del 95 por ciento de estos, se originan del compartimiento meidastinal anterosuperior, sólo 3 por ciento a 8 por ciento ocurren en otro lugar (1-5). Usualmente son descubiertos cuando aún son asintomáticos; cuando se presentan síntomas usualmente son secundarios a la compresión de estructuras adyacentes (6). Describimos el caso clínico y los hallazgos imagenológicos y operatorios de una paciente de 18 años de sexo femenino con un quiste de mediastino: Teratoma quístico maduro


Subject(s)
Humans , Female , Adolescent , Mediastinal Cyst , Teratoma , Mediastinal Cyst/surgery , Mediastinal Cyst/diagnosis , Teratoma/diagnosis , Teratoma/surgery
SELECTION OF CITATIONS
SEARCH DETAIL
...