Physiological and Histopathological Effects of Tributyletin (TBT) on Lymnaea natalensis and Physa acuta. | ||||
| The Egyptian Journal of Hospital Medicine | ||||
| Article 1, Volume 37, Issue 1, October 2009, Page 610-620 PDF (376.74 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejhm.2009.17472 | ||||
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| Authors | ||||
| El-feky F1; Raafat H A2; Kamal H2 | ||||
| 1Zoology Department, Faculty of Science, Girls Branch Al-Azhar University, Cairo, Egypt, | ||||
| 2Zoology Department, Girls Collage for Arts, Science, and Education, Ain-Shams University, Cairo, Egypt. | ||||
| Abstract | ||||
| Background: Two hermaphrodite snails Lymnaea natalensis and Physa acuta , the most abaundant gastropods in Nile River was investigated to determine the effect of Tributyletin oxide (TBT) on some physiological parameters and histopathological changes in the ovotestis of both snails. Methods: Nine plastic gars (six treated and three control sets) were used for each species of snails. Every aquaria contained 2 l. of dechlorenated water with concentration of 2 ppm of TBT. Samples of heamolymph and ovotestis tissues were taken after 2 and 4 weeks. Results: The physiological data revealed that the concentration of glucose, cholesterol, calcium, total proteins, albumin, and globulin changed from one species to the other in different responses and according to time of exposure. The histological data of the hermaphrodite gland or the ovotestis of both snails showed disturbances in differentiation and maturation process, cellular degeneration was also observed. Conclusion: Due to the hazardous effects of TBT on the physiology and the histology of the ovotestis of both snail species, more research on the impact of TBT or related compounds has to be conducted. The use of TBT as antifouling agent has to be restricted in the developing countries and replace it by related compounds with less or no side effects. | ||||
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