Comparative Immunohistochemical Characteristics of Thalamic Glioarchitectonics of Young and Senile Persons
https://doi.org/10.18499/2225-7357-2021-10-4-14-18
Abstract
The aim of the investigation was to establish morphological differences between the human thalamus in young and senile age by using an immunohistochemical marker – glial fibrillary acidic protein (GFAP).
Material and methods. The results of the sectional study of both thalami of 94 deceased of both sexes were analyzed. Depending on their age (young and senile), they were divided into two groups. The deceased had no history of diseases and injuries of the central and peripheral nervous system organs as well as alcohol and/or drug addiction, no macroscopic signs of brain tissue pathology were detected when material was taken for microscopic examination. Morphological characterization of thalamic tissue in both hemispheres of the large brain using hematoxylin and eosin staining was given. Immunohistochemical study of the samples used antibodies to GFAP.
Results. Histological examination of the thalamus in both young and senile age revealed groups of irregularly arranged neuronal bodies with granular cytoplasm and swollen ectopic nuclei. When the immunohistochemical reaction was performed, the product of the reaction was distributed in the bodies and outgrowths of astrocytes. In young age, single bodies of fibrous astrocytes with a moderate number of poorly visualized outgrowths were found. At senile age, in addition to a statistically significant increase in the numerical density of fibrous astrocyte bodies (p<0.01), there is a clear increase in the number of their outgrowths.
Conclusion. The results obtained provide a detailed insight into the morphological characteristics of the thalamic tissue of men and women at young and senile age. The use of antibodies to GFAP is a sensitive marker of age-related changes in thalamic cytoarchitectonics. The increase in the numerical density of astrocytes as well as the outgrowth of their processes allows a more precise understanding of age-related involution of nervous tissue, which will allow to use these data in future prospective basic research.
About the Authors
A. A. Balandin
E.A. Wagner Perm State Medical University
Russian Federation
Russian Federation
L. M. Zheleznov
Kirov State Medical University
Russian Federation
Russian Federation
I. A. Balandina
E.A. Wagner Perm State Medical University
Russian Federation
Russian Federation
Irina Balandina
ul. Petropavlovskaya, 26, Perm, 614990
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Review
For citations:
Balandin A.A., Zheleznov L.M., Balandina I.A. Comparative Immunohistochemical Characteristics of Thalamic Glioarchitectonics of Young and Senile Persons. Journal of Anatomy and Histopathology. 2021;10(4):14-18. (In Russ.) https://doi.org/10.18499/2225-7357-2021-10-4-14-18
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