Cerebral cortex astroglia and the brain of a genius: a propos of A. Einstein's.
The glial fibrillary acidic protein immunoreactive astroglial layout of the cerebral cortex from Albert Einstein and other four age-matched human cases lacking any known neurological disease was analyzed using quantification of geometrical features mathematically defined. Several parameters (parallelism, relative depth, tortuosity) describing the primate-specific interlaminar glial processes did not show individually distinctive characteristics in any of the samples analyzed. However, A. Einstein's astrocytic processes showed larger sizes and higher numbers of interlaminar terminal masses, reaching sizes of 15 microm in diameter. These bulbous endings are of unknown significance and they have been described occurring in Alzheimer's disease. These observations are placed in the context of the general discussion regarding the proposal--by other authors--that structural, postmortem characteristics of the aged brain of Albert Einstein may serve as markers of his cognitive performance, a proposal to which the authors of this paper do not subscribe, and argue against.
Colombo
Jorge A
JA
Unidad de Neurobiología Aplicada, UNA, CEMIC-CONICET, Av. Galván 4102, C1431FWO Ciudad de Buenos Aires, Argentina. colombo@pruna.gov.ar
Reisin
Hernán D
HD
Miguel-Hidalgo
José J
JJ
Rajkowska
Grazyna
G