Low doses of domoic acid during postnatal development produce permanent changes in rat behaviour and hippocampal morphology

2004 ◽  
Vol 6 (7-8) ◽  
pp. 555-563 ◽  
Author(s):  
T. A. Doucette ◽  
P. B. Bernard ◽  
H. Husum ◽  
M. A. Perry ◽  
C. L. Ryan ◽  
...  
2018 ◽  
Vol 7 (3) ◽  
pp. e0302
Author(s):  
Dibakhan A. Tsomartova ◽  
Natalia V. Yaglova ◽  
Sergey S. Obernikhin ◽  
Svetlana V. Nazimova ◽  
Valentin V. Yaglov

2018 ◽  
Vol 26 (2) ◽  
pp. 25-30
Author(s):  
D.A. Tsomartova ◽  
◽  
N.V. Yaglova ◽  
S.S. Obernikhin ◽  
S.V. Nazimova ◽  
...  

2011 ◽  
Vol 27 (10) ◽  
pp. 605-612 ◽  
Author(s):  
Jiliang Si ◽  
Jie Li ◽  
Fengmei Zhang ◽  
Guozhen Li ◽  
Quanbin Xin ◽  
...  

2017 ◽  
Vol 63 (4) ◽  
pp. 306-311 ◽  
Author(s):  
N.V. Yaglova ◽  
D.A. Tsomartova ◽  
V.V. Yaglov

Production of adrenal steroid hormones in pubertal male Wistar rats exposed to low doses of DDT during both prenatal and postnatal and only postnatal development was evaluated. Altered production of all types of steroid hormones and serum steroid profile with opposite changes in rats exposed prenatally and postnatally, and only postnatally was found. The study showed that daily exposure to low doses of DDT enhanced conversion of progesterone to 17OH-progesterone and did not exert selective antiandrogenic or proestrogenic action unlike effect of toxic and subtoxic doses. Impaired morphogenesis of the adrenal cortex and circulatory disorders in zona glomerulosa contributed to reduced aldosterone and sex steroid hormones production.


2021 ◽  
Vol 22 (12) ◽  
pp. 6324
Author(s):  
Nataliya V. Yaglova ◽  
Sergey S. Obernikhin ◽  
Dibakhan A. Tsomartova ◽  
Svetlana V. Nazimova ◽  
Valentin V. Yaglov ◽  
...  

Dichlorodiphenyltrichloroethane (DDT) is a persistent organic pollutant and one of the most widespread endocrine disrupting chemicals. The impact of low-dose exposure to DDT on the morphogenesis of the adrenal gland is still poorly understood. The development and function of zona glomerulosa in rats has been found to be associated with changes in the expression of the transcription factor Oct4 (Octamer 4), which is the most important player in cell pluripotency. The aim of the study was to investigate the morphogenesis and function of rat adrenal zona glomerulosa in rats exposed to low doses of DDT during prenatal and postnatal development and to determine the possible role of Oct4 in DDT-mediated structural and functional changes. The DDT-exposed rats demonstrated slower development and lower functional activity of the zona glomerulosa during the pubertal period associated with higher expression of Oct4. Further, accelerated growth and restoration of hormone production was associated with, firstly, a decrease in Oct4 expressing cells and secondly, the loss of the inverse relationship between basal aldosterone levels and the number of Oct4 expressing cells. Thus, the transcriptional factor Oct4 exhibited an altered pattern of expression in the DDT-exposed rats during postnatal development. The results of the study uncover a novel putative mechanism by which low doses of DDT disrupt the development of adrenal zona glomerulosa.


Author(s):  
Svetlana Vladimirovna Nazimova ◽  
Nataliya Valentinovna Yaglova ◽  
Dibakhan Aslanbekovna Tsomartova ◽  
Sergey Stanislavovich Obernikhin ◽  
Valentin Vasilyevich Yaglov

Altered patterns of cell proliferation in adrenal zona reticularis during postnatal development and regulation of proliferative activity by transcriptional factor PRH were revealed in rats exposed to endocrine disrupter DDT.


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