Kora nadbubrežne žlezde peripubertalnih i odraslih ženki pacova posle neonatalnog tretmana sa SRIH-14
Adrenal cortex in peripubertal and adult female rats after neonatal treatment with SRIH-14
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Neonatal female rats (3-7 days old) were injected subcutaneously twice daily with 20 μg of SRIH-14/100g b.w. for five consecutive days. The animals were sacrificed in the peripubertal (38 days old) or adult (80 days old) periods of life. Control rats were treated in the same way with identical volumes of saline. SRIH-14 led to significant reduction (p<0.05) of the absolute and relative volumes of the ZG in peripubertal animals, by 11 and 22%, respectively in comparison with the controls. The total number and volume of ZG cells and their nuclei were also significantly decreased (p<0.05) in peripubertal SRIH-14-treated rats as compared to the controls. There were no significant (p>0.05) changes in the morphometric parameters of adult adrenal cortex after SRIH-14 treatment compared with control females. It can be concluded that subcutaneously applied SRIH-14 in the neonatal period inhibits growth of adrenal ZG cells in female rats only up to the peripubertal stage, while the adrenal gland cortex recovers before mature adulthood is reached.