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Vol.2 No.12 -4 : Effects of propolis on histopathological and immunohistochemical alterations in testes of thyroidectomized rat.

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By : Ezar Hafez

Abstract

The thyroid hormones, triiodothyronine (T3) and its prohormone, thyroxine, are secreted by the thyroid gland which are responsible for the regulation of metabolism in all body tissues. This work aimed to study the histopathological, immunohistochemical and biochemical changes in the adult rat testes after thyroidectomy, in addition to the role of propolis in reducing these changes. Twenty five male Wistar rats were assigned randomly into equal (5) groups; control, sham operated, shamed propolis, thyroidectomized, thyroidectomy treated with propolis. Levels in compare to control the thyroidectomized rats showed significantly decrease in serum T3 and increase in TSH levels. Degeneration and increase in the seminiferous tubules lumen also noticed. Immunohistochemical results showed a remarkable reduction of proliferating cell nuclear antigen (PCNA) and Ki-67 in spermatogonia of thyroidectomized rat testes as compared with control group. The results revealed that, propolis has an ameroliating role on thyroidectomized rats testes by decreasing damage.

4_Effects_of_propolis_on_histopathological_and_immunohistochemical_alterations_in_testes_of_thyroidectomized_rat
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Vol.2 No.2 -3 : Ameliorating effect of propolis extract against equigan induced.

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By : Ahmed Massouda, Ehab Toussona, Nahla Zedanb and Ali E. Abd elwahaba

Abstract

Equigan is an androgenic steroid that improves the growth and food conversion in meat producing animals. The present study was performed to determine the ameliorating effect of propolis in the toxicity of the rat testes induced with Equigan. Fourty male albino rat were divided into four groups (10 animals each); the control group includes animals that injected intramuscularly with olive oil. The second group includes rats received propolis. The third group is the experimental group included animals that received intramuscular injections of Equigan. The last group was co-administrated group where rats received Equigan along with propolis. The results suggest that misuse of growth promoter Equigan may contribute to continuous damage of the testicular function and structure that shown a significant increase in nitric oxide (NO), malondialdehyde (MDA), testosterone, follicle stimulating hormone (FSH) and luteinizing hormone (LH) in Equigan group when compared to the control group, these results decrease in co-administrated Equigan with propolis. On the other hand a significant decrease in superoxide dismutase (SOD), catalase, Glutathione (GSH) and total thiol in Equigan group when compared with control group, and a significant increase in co-administrated Equigan with propolis. It was concluded that; propolis has ameliorating role on the biochemical alterations in Equigan induced testicular toxicity in male rat.

3. Ameliorating effect of propolis extract against equigan induced.
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Vol.2 No.1 -4 : Ameliorating effect of propolis and moringa extract against equigan induced neurotoxicity and oxidative stress on rat hippocampus.

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By : Ehab Tousson, Ezar Hafez, Ahmed Massoud and Ahmed A. Elfeky

Abstract

In most countries worldwide, Equigan is anabolic steroid that is forbidden for human uses or for meat production. The present study was designed to investigate the ameliorating role of Propolis and moringa leaf extract (MLE) against Equigan induced neurotoxicity and oxidative stress on rat hippocampus. A total of 48 healthy male albino rats weighing 170-200 g and of 10-12 weeks age were divided into 6 groups (8 animals each). 1st Control group includes animals that injected intramuscularly with olive oil for 12 weeks. 2nd and 3rd groups were rats received Propolis and MLE respectively. 4th experimental group include animals that receive intramuscular injections of Equigan for 12 weeks; 5th and 6th groups where rats intramuscular injected with Equigan and treated with Propolis and MLE at the same time respectively. The obtained results indicate that hippocampal nitric oxide (NO), malondialdehyde (MDA), acetylcholine esterase (AChE) and total protein were significantly increased in Equigan group when compared with control group. In contrast hippocampal catalase, SOD and total thiol levels were significantly decreased in Equigan group when compared with control group. On the other hand hippocampal NO, MDA, ACE and total protein in Equigan group were significantly increased when compared with co-treated Equigan with MLE or Propolis groups. In contrast; hippocampal catalase, SOD and total thiol levels were significantly decreased in Equigan group when compared with co-treated Equigan with MLE or propolis groups. We can concluded that; MLE and propolis extract ameliorate the neurotoxicity and oxidative stress on rat hippocampus induces by Equigan.

4. Ameliorating effect of propolis and moringa extract against equigan induced neurotoxicity and oxidative stress on rat hippocampus.
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