Recommended
More Related Content
What's hot
What's hot (20)
Similar to T.tenax
Similar to T.tenax (20)
Recently uploaded
Recently uploaded (20)
T.tenax
- 2. • INTRODUCTION • MORPHOLOGY • LIFE CYCLE • PATHOGENESIS • TRANSMISSION • LABORATORY DIAGNOSIS • CONCLUSION
- 3. *commonly found in the oral cavity of humans, dogs and cats. * T.tenax is the smallest in the genus trichomonas . * It has high prevalence in persons with periodontal diseases (reviewed by Honigberg and Burgess, 1994). *submaxillary gland (Duboucher, Mogenet and Perie, 1995),and infra-auricular lymph node (Duboucher et al.2000) *trichomonads occurring in the oral cavity and the respiratory tract of humans are T. tenax (Honigberg and Burgess,1994)
- 5. Trichomonas tenax Scientific classification Domain: Eukarya Phylum: Metamonada Class: Parabasalia Order: Trichomonadida Genus: Trichomonas Species: T. tenax
- 6. 5 to 14 μm long 5-6 µm Wide Size range Oval to pearShape One, vesicular filled with chromatin granules, ovoid Nuclei Five total, all originating anteriorly : four extends anteriorly One extends posteriorly Flagella Undulating membrane extending 2/3 of body length Thick axostyle Small anterior cytosome opposite undulating membrane Other structures
- 8. *Trichomonas tenax trophozoites survive in the body as mouth scavengers that feed on local microorganisms. *Located in the tartar between the teeth , tonsillar crypts, and gingival margin around the gums. *T. tenax trophozoites multiply by longitudinal binary fission. *These trophozoites are unable to survive the digestive process.
- 9. * Trichomonas tenax is known to play a pathogenic role in necrotizing ulcerative gingivitis and necrotizing ulcerative periodontitis. (Feki et al. 1981,Honigberg, 1990) N U P N U G
- 10. *Also implicated in some chronic lung diseases(reviewed by Hersh,1985 and Honigberg, 1990). *the trichomonas have also been found in pleural fluid patients (Memik, 1968; Walzer, Rutherford and East, 1978;Osborne, Giltman and Uthman, 1984; Ohkura,Suzuki and Hashiguchi, 1985; Shiota et al. 1998;Porcheret et al. 2002; Lewis et al. 2003)
- 11. *T. tenax produced plasma membrane projections and phagocytosed portions of the mammalian cells. *T. tenax may also be involved in the degradation of periodontal tissue through the secretion of substances such as alkaline phosphatases and the fibronectin cathepsine
- 12. It has no cysts and is transmitted directly
- 13. * for specific detection of T. tenax by polymerase chain reaction(Kikuta et al. 1997). *Microscopic examination. *T. tenax may also be cultured onto appropriate media
- 16. • Corresponding author: Department of Parasitology,Faculty of Science, Charles University in Prague,Vinicˇna´ 7, Prague 2, 128 44, Czech Republic. Tel: +420221651811. Fax: +420 224919704. E-mail: tachezy@natur.cuni.cz • https://www.youtube.com/redirect?v=ihJKNKFueUg&event=video _description&redir_token=SXmGIJ3ZOsP0zhT06K0hS_B4wAF8MT UxNzA4OTYyNEAxNTE3MDAzMjI0&q=http%3A%2F%2Fwww.parod ontite.com • https://www.sciencedirect.com/science/article/pii/S14344610150 00073