Presentation
Neuroimaging in Alzheimer’s disease: findings in plasmapheresis with albumin
Neuroimagen en la enfermedad de Alzheimer: resultados en plasmaféresis con albúmina
Rev Neurol 2010
, 50(Suplemento 5),
19–22;
https://doi.org/10.33588/rn.50S05.2010082
Abstract
INTRODUCTION AND
AIM Changes in cerebral function were evaluated in patients with Alzheimer disease treated or not with plasmapheresis with Human Albumin Grifols ® 5%. Sequential brain single photon emission computerized tomography (SPECT) and magnetic resonance imaging techniques were used.
MATERIALS AND METHODS Brain SPECT (99mTc-ECD) studies were obtained at baseline (double headed gammacamera Siemens Ecam, LE-HR, 30 sec/image/3°, 128 x 128). Studies were quantified by means of SPM (Statistical Parametric Mapping) and Neurogam. Changes between baseline and after a follow-up period of up to 12 months were evaluated in patients undergoing or not the plasma exchange treatment program. All the studies were double blinded and referenced to a normal age-matched database. Comparisons were performed individually and between groups: treated (plasma exchange) versus non treated group, and baseline versus post follow-up analysis. RESULTS AND
CONCLUSIONS Significant differences in the areas of Brodmann were observed between the treated and the control groups and after the follow-up period. Regarding the hippocampal uptake, significant differences were observed between the treated and the control groups. Together with the clinical findings, these preliminary results provide biological evidence to the hypothesis that plasmapheresis with Human Albumin Grifols ® 5% can play a role in the treatment of Alzheimer’s disease.
AIM Changes in cerebral function were evaluated in patients with Alzheimer disease treated or not with plasmapheresis with Human Albumin Grifols ® 5%. Sequential brain single photon emission computerized tomography (SPECT) and magnetic resonance imaging techniques were used.
MATERIALS AND METHODS Brain SPECT (99mTc-ECD) studies were obtained at baseline (double headed gammacamera Siemens Ecam, LE-HR, 30 sec/image/3°, 128 x 128). Studies were quantified by means of SPM (Statistical Parametric Mapping) and Neurogam. Changes between baseline and after a follow-up period of up to 12 months were evaluated in patients undergoing or not the plasma exchange treatment program. All the studies were double blinded and referenced to a normal age-matched database. Comparisons were performed individually and between groups: treated (plasma exchange) versus non treated group, and baseline versus post follow-up analysis. RESULTS AND
CONCLUSIONS Significant differences in the areas of Brodmann were observed between the treated and the control groups and after the follow-up period. Regarding the hippocampal uptake, significant differences were observed between the treated and the control groups. Together with the clinical findings, these preliminary results provide biological evidence to the hypothesis that plasmapheresis with Human Albumin Grifols ® 5% can play a role in the treatment of Alzheimer’s disease.
Resumen
Introducción Con el objetivo de estudiar los cambios funcionales cerebrales en pacientes con enfermedad de Alzheimer sometidos a plasmaféresis con recambio plasmático con Albúmina Humana Grifols® 5%, se han realizado prospectivamente y a doble ciego estudios secuenciales de tomografía computarizada por emisión de fotón único (SPECT) y resonancia magnética cerebrales a pacientes sometidos o no a esta terapia.
Materiales y métodos Los SPECT cerebrales (99mTc-ECD) se obtuvieron en condiciones basales (gamma-cámara doble detector Ecam, LE-HR, 30 sec/image/3º, 128 × 128). Estos estudios se cuantificaron mediante SPM (Statistical Parametric Mapping) y Neurogam para valorar los cambios entre el estudio basal y el seguimiento tras la plasmaféresis. Todos los estudios, referenciados con una base de datos normal para la edad, se han comparado de forma individual y por grupos: tratados/no tratados con plasmaféresis y estudios pretratamiento/postratamiento en diferentes tiempos. Resultados y conclusiones. Se presentan los resultados de las áreas de Brodmann en las que se han detectado diferencias significativas entre los grupos tratado y control y entre los controles evolutivos, y las variaciones evolutivas en la captación del hipocampo en los grupos control y tratados. Junto con los hallazgos clínicos, estos resultados preliminares aportan evidencia biológica a la hipótesis de que el recambio plasmático con Albúmina Humana Grifols® 5% puede desempeñar un papel en el tratamiento de la enfermedad de Alzheimer.
Materiales y métodos Los SPECT cerebrales (99mTc-ECD) se obtuvieron en condiciones basales (gamma-cámara doble detector Ecam, LE-HR, 30 sec/image/3º, 128 × 128). Estos estudios se cuantificaron mediante SPM (Statistical Parametric Mapping) y Neurogam para valorar los cambios entre el estudio basal y el seguimiento tras la plasmaféresis. Todos los estudios, referenciados con una base de datos normal para la edad, se han comparado de forma individual y por grupos: tratados/no tratados con plasmaféresis y estudios pretratamiento/postratamiento en diferentes tiempos. Resultados y conclusiones. Se presentan los resultados de las áreas de Brodmann en las que se han detectado diferencias significativas entre los grupos tratado y control y entre los controles evolutivos, y las variaciones evolutivas en la captación del hipocampo en los grupos control y tratados. Junto con los hallazgos clínicos, estos resultados preliminares aportan evidencia biológica a la hipótesis de que el recambio plasmático con Albúmina Humana Grifols® 5% puede desempeñar un papel en el tratamiento de la enfermedad de Alzheimer.
Keywords
Albumin
Alzheimer
Neuroimaging
Plasma exchange
SPECT
Palabras Claves
Albúmina
Alzheimer
Neuroimagen
Plasmaféresis
SPECT