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Vol.2 No.2 -4 : Comparative cardioprotective effect of Egyptian Silybum marianum extract and Chinese silymarin in experimentally liver fibrosis.

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By : 1Ehab Tousson; 2Afrah F. Salama; 3Mahmoud A. Elony; and 2٭Mona A. Dora

Abstract

Liver fibrosis is one of the common problems effects on the human health. Many herbal, medicinal and pharmaceutical plants and their extracts are widely studied by many researches. Chinese silymarin got a bright reputation in relieve of liver fibrosis. The current study is a comparative study between the effect of Chinese silymarin (commercial drug) and the extracted silymarin from the natural Egyptian plant on the cardiac toxicity due to liver fibrosis induced by ethanol in rats. A total of 72 female Albino rats were divided into six groups; G1, Control; G2,Fibrosis; G3,Chinese silymarin; G4, Fibrosis + Chinese silymarin; G5, Egyptian silymarin extract; G6, Fibrosis + Egyptian silymarin extract. Results showed that, heart enzymes activities LDH, lipid profiles in serum and MDA in tissues were a significant increase in Fibrosis group when compared with control group. On the other hand; creatine kinase (CK) in serum, total protein, total thiol, TAC, CAT and GST in cardiac tissues were a significant decrease in Fibrosis group when compared with control group. The current results revealed that; the Egyptian plant extract improved the lipid profile, heart functions and its oxidative stress parameters as comparison with the used medical Chinese silymarin.

4. Comparative cardioprotective effect of Egyptian Silybum marianum extract and Chinese silymarin in experimentally liver fibrosis.

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Vol.1 No.5 -5 : Apoptotic Marker Alternations in the Spleen of Experimentally Hyperthyroid and Hypothyroid Rat.

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By : Ezar Hafez; Ahmed Masoud; Magdy Barnous; Ehab Tousson

Abstract

Apoptosis plays a critical role in the development and homeostasis of multicellular organisms, especially those with high cell turnover such as the lymphoid system. The current study aimed to examined the effects of changes in thyroid hormones on apoptosis of spleen in male rats. 30 rats were equally divided into three groups (10 animals each). G1, control group in which animals did not received any treatment; G2, Hypothyroid group in which rats received 0.05% 6-n-propyl-2-thiouracil (PTU) in drinking water for 6 weeks; G3, Hyperthyroid group in which rats received 100 μg/Kg L-Thyroxin sodium administration in drinking water for 6 weeks. In the present study; serum T3 and T4 concentrations were depressed and serum TSH concentration was significantly elevated in rats receiving PTU-induced hypothyroidism. On the other hand; serum T3 and T4 concentrations were significantly elevated and serum TSH concentration was depressed in rats receiving L-Thyroxin sodium-induced hyperthyroidism. In the current study; spleen in both hypothyroid and hyperthyroid rats revealed many of abnormalities as marked disruption of spleen structure, loss in distinction between the white and red pulps, degeneration and vacuolation with an increased in the lymphocyte population. Also, a significant increase in p53 and Caspase3 apoptotic cells and a significant decrease in Bcl-2 antiapoptotic cells in the spleen tissues revealed the possibility of the apoptosis occurrence after PTU or Thyroxin administration in the case of hypothyroidism and hyperthyroidism.

5. Apoptotic Marker Alternations in the Spleen of Experimentally Hyperthyroid and Hypothyroid Rat.

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