M Radu-Toader

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The authors have studied the effect of testosterone administration in male adult Wistar rats irradiated with a single total dose of 800 r X-rays. The results obtained show that testosterone exerts a double radioprotective action. This hormone prevents both the occurrence of the senile type spleen and lymph node changes and the depression of the(More)
Bilateral ovariectomy of Wistar rats has per se a stimulative effect on the myeloid tissue, determining a hypercellularity of this organ-tissue. On the other hand, under the conditions of a whole-body irradiation with a single dose of 800 r X-rays, bilateral ovariectomy manifests a protective effect on the myeloid tissue preventing the development of(More)
The concentrated formol injections in the skeletal muscle of rat induce the appearance of histological modifications of the destructive type, followed after a period of time by modifications of the restoring-regenerative type. The histochemical reactions for the demonstration of proteins undergo significant alterations during these processes. In a first(More)
The effects of the X-rays on the peripherial lymphoid organs (lymph nodes and spleen) in male adult wistar rats "chemically thyroidectomized" (methylthiouracil) have been studied. Spontaneous death of these animals 9 days after the irradiation was determined by the hypoplasia (aplasia) of the hematogenous bone marrow. The spleen and lymph node changes --(More)
The whole-body irradiation of adult Wistar rats with a single dose of 800 r X-rays intensifies the lymph node changes and the decrease of the colloidopexic capacity of hepatosplenic macrophages established by the "reverse" administration of sexual hormones. The modifications observed after estradiol administration to the male rat are more marked after a 6(More)
Cortisone administration in male Wistar rat induces a depletion of the granulocytic-normoblastic cell population in the bone marrow in parallel with a numerical increase by accumulation of lymphoid and undifferentiated cells. These changes are more intense under irradiation conditions. The reversibility of medullary modifications is shown by the integrity(More)
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