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Morphological Changes in a Spleen’s White Pulp of Posterity of the Female rats, Injected Before Pregnancy with 1,2-dimethylhydrazine

https://doi.org/10.18499/2225-7357-2017-6-2-50-55

Abstract

The aim was to study the spleen’s white pulp morphology of posterity of female rats’ who were injected before pregnancy with a carcinogen 1,2-dimethylhydrazine. Material and methods. The spleen of 48 male rats born from intact females (n=24) and from those, who received a carcinogen 1,2-dimethylhydrazine (n=24) was studied. General histological (hematoxylin and eosin staining) and morphometric methods were used. Immunohistochemical detection of S-100 protein (marker of dendritic cells), CD79α (marker of B-lymphocytes) and CD3 (marker of T-lymphocytes) was performed. Statistical processing was carried out using the licensed package of MS Office 2007 programs. The data obtained were expressed as the arithmetic mean with an average error M±m. The reliability of the results was assessed according to Student's t-test. Results. Decreasing of lymph nodes and germinal centers square in dynamics, significant dilatation of marginal zone of 6- and 12-months rats was established. Сhanges in the cellular composition of the spleen offspring were found: wave-like reciprocal changes of expression level of S100+-dendritic cells and CD79+ B-lymphocytes in different age periods after birth, decreasing of fraction of CD3+ T-lymphocytes at 6 and 12 months. Conclusions. Revealed changes are the evidence of the early hypoplasia of the spleen lymphoid tissue at the posterity of female rats exposed to 1,2-dimethylhydrazine.

About the Authors

L. M. Merkulova
Chuvash I .N. Ulianov State University, Cheboksary, Russia
Russian Federation


M. N. Mikhaylova
Chuvash I .N. Ulianov State University, Cheboksary, Russia
Russian Federation


G. Yu. Struchko
Chuvash I .N. Ulianov State University, Cheboksary, Russia
Russian Federation


O. Yu. Kostrova
Chuvash I .N. Ulianov State University, Cheboksary, Russia
Russian Federation


O. M. Arlashkina
Chuvash I .N. Ulianov State University, Cheboksary, Russia
Russian Federation


E. G. Drandrova
Chuvash I .N. Ulianov State University, Cheboksary, Russia
Russian Federation


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For citations:


Merkulova L.M., Mikhaylova M.N., Struchko G.Yu., Kostrova O.Yu., Arlashkina O.M., Drandrova E.G. Morphological Changes in a Spleen’s White Pulp of Posterity of the Female rats, Injected Before Pregnancy with 1,2-dimethylhydrazine. Journal of Anatomy and Histopathology. 2017;6(2):50-55. (In Russ.) https://doi.org/10.18499/2225-7357-2017-6-2-50-55

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ISSN 2225-7357 (Print)