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HandWiki. Giardia lamblia. Encyclopedia. Available online: https://encyclopedia.pub/entry/31235 (accessed on 24 September 2026).
HandWiki. Giardia lamblia. Encyclopedia. Available at: https://encyclopedia.pub/entry/31235. Accessed September 24, 2026.
HandWiki. "Giardia lamblia" Encyclopedia, https://encyclopedia.pub/entry/31235 (accessed September 24, 2026).
HandWiki. (2022, October 25). Giardia lamblia. In Encyclopedia. https://encyclopedia.pub/entry/31235
HandWiki. "Giardia lamblia." Encyclopedia. Web. 25 October, 2022.
Giardia lamblia
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The content is sourced from: https://handwiki.org/wiki/Biology:Giardia_lamblia

Giardia lamblia, also known as Giardia intestinalis, is a flagellated parasitic microorganism, that colonizes and reproduces in the small intestine, causing giardiasis. The parasite attaches to the epithelium by a ventral adhesive disc or sucker, and reproduces via binary fission. Giardiasis does not spread via the bloodstream, nor does it spread to other parts of the gastrointestinal tract, but remains confined to the lumen of the small intestine. Giardia trophozoites absorb their nutrients from the lumen of the small intestine, and are anaerobes. If the organism is split and stained, its characteristic pattern resembles the familiar "smiley face" symbol. Chief pathways of human infection include ingestion of untreated sewage, a phenomenon particularly common in many developing countries; contamination of natural waters also occurs in watersheds where intensive grazing occurs. Giardia infections occur worldwide, however Giardia lamblia is the most commonly identified intestinal parasite in the United States and Canada among children in day care centers, hikers, family members, homosexual male partners and immunocompromised adults. Approximately 20,000 cases per year in the United States are reported.

epithelium intestinal parasite natural waters

References

  1. Ford BJ (2005). "The discovery of Giardia" (pdf). The Microscope 53 (4): 148–153. http://www.brianjford.com/Giardia-14-06.pdf. 
  2. "A large community outbreak of waterborne giardiasis-delayed detection in a non-endemic urban area". BMC Public Health 6 (1): 141. 2006. doi:10.1186/1471-2458-6-141. PMID 16725025.  http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=1524744
  3. Mitchell, Piers D.; Stern, Eliezer; Tepper, Yotam (2008). "Dysentery in the crusader kingdom of Jerusalem: an ELISA analysis of two medieval latrines in the City of Acre (Israel)". Journal of Archaeological Science 35 (7): 1849–1853. doi:10.1016/j.jas.2007.11.017.  https://dx.doi.org/10.1016%2Fj.jas.2007.11.017
  4. Heyworth, Martin F. (2016). "Giardia duodenalis genetic assemblages and hosts". Parasite 23: 13. doi:10.1051/parasite/2016013. ISSN 1776-1042. PMID 26984116. PMC 4794627. http://www.parasite-journal.org/articles/parasite/full_html/2016/01/parasite150104/parasite150104.html. 
  5. Tzanidakis, Nikolaos; Sotiraki, Smaragda; Claerebout, Edwin; Ehsan, Amimul; Voutzourakis, Nikolaos; Kostopoulou, Despoina; Stijn, Casaert; Vercruysse, Jozef et al. (2014). "Occurrence and molecular characterization of Giardia duodenalis and Cryptosporidium spp. in sheep and goats reared under dairy husbandry systems in Greece". Parasite 21: 45. doi:10.1051/parasite/2014048. ISSN 1776-1042. PMID 25187088. PMC 4154256. http://www.parasite-journal.org/articles/parasite/full_html/2014/01/parasite130114/parasite130114.html. 
  6. "An updated review on Cryptosporidium and Giardia". Gastroenterol. Clin. North Am. 35 (2): 291–314, viii. 2006. doi:10.1016/j.gtc.2006.03.006. PMID 16880067.  https://dx.doi.org/10.1016%2Fj.gtc.2006.03.006
  7. "Giardia | Parasites | CDC" (in en-us). https://www.cdc.gov/parasites/giardia/index.html. Retrieved 25 October 2017. 
  8. Adam, Rodney D. (July 2001). "Biology of Giardia lamblia". Clinical Microbiology Reviews 14 (3): 447–75. doi:10.1128/CMR.14.3.447-475.2001. PMID 11432808.  http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=88984
  9. Tovar J; León-Avila G; Sánchez LB et al. (2003). "Mitochondrial remnant organelles of Giardia function in iron-sulphur protein maturation". Nature 426 (6963): 172–6. doi:10.1038/nature01945. PMID 14614504.  https://dx.doi.org/10.1038%2Fnature01945
  10. "Giardia — MicrobeWiki". Microbewiki.kenyon.edu. http://microbewiki.kenyon.edu/index.php/Giardia. Retrieved 2010-07-29. 
  11. "Anaerobic bacterial metabolism in the ancient eukaryote Giardia duodenalis". International Journal for Parasitology 28 (1): 149–64. 1998. doi:10.1016/S0020-7519(97)00172-0. PMID 9504342. http://www.mitochondrial.net/showabstract.php?pmid=9504342. 
  12. Erlandsen; Meyer (1984). Giardia and Giardiasis. New York: Plenum Press. ISBN 978-0-306-41539-5. 
  13. "Identification of endoplasmic reticulum in the primitive eukaryote Giardia lamblia using cryoelectron microscopy and antibody to Bip". J. Cell Sci. 109 (Pt 7): 1909–17. July 1996. PMID 8832413. http://jcs.biologists.org/cgi/pmidlookup?view=long&pmid=8832413. 
  14. "Immunoelectron microscopy of Giardia lamblia cytoskeleton using antibody to acetylated alpha-tubulin". J. Eukaryot. Microbiol. 41 (6): 625–32. 1994. doi:10.1111/j.1550-7408.1994.tb01524.x. PMID 7866386.  https://dx.doi.org/10.1111%2Fj.1550-7408.1994.tb01524.x
  15. "Cellular and transcriptional changes during excystation of Giardia lamblia in vitro". Experimental Parasitology 88 (3): 172–83. 1998. doi:10.1006/expr.1998.4246. PMID 9562420.  https://dx.doi.org/10.1006%2Fexpr.1998.4246
  16. "Differentiation-associated surface antigen variation in the ancient eukaryote Giardia lamblia". Molecular Microbiology 30 (5): 979–89. 1998. doi:10.1046/j.1365-2958.1998.01125.x. PMID 9988475.  https://dx.doi.org/10.1046%2Fj.1365-2958.1998.01125.x
  17. "Antigenic variation in Giardia lamblia is regulated by RNA interference". Nature 456 (7223): 750–754. 2008. doi:10.1038/nature07585. PMID 19079052.  https://dx.doi.org/10.1038%2Fnature07585
  18. Morrison HG; McArthur AG; Gillin FD et al. (2007). "Genomic minimalism in the early diverging intestinal parasite Giardia lamblia". Science 317 (5846): 1921–6. doi:10.1126/science.1143837. PMID 17901334.  https://dx.doi.org/10.1126%2Fscience.1143837
  19. Franzén O; Jerlström-Hultqvist J; Castro E et al. (2009). Petri, William. ed. "Draft Genome Sequencing of Giardia intestinalis Assemblage B Isolate GS: Is Human Giardiasis Caused by Two Different Species?". PLoS Pathogens 5 (8): e1000560. doi:10.1371/journal.ppat.1000560. PMID 19696920.  http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=2723961
  20. "Population genetics provides evidence for recombination in Giardia". Curr. Biol. 17 (22): 1984–8. November 2007. doi:10.1016/j.cub.2007.10.020. PMID 17980591. http://linkinghub.elsevier.com/retrieve/pii/S0960-9822(07)02081-7. 
  21. Adam, RD; Svard, SG (2010). "Giardia: Nuclear and Chromosomal Structure and Replication". Anaerobic Parasitic Protozoa: Genomics and Molecular Biology. Caister Academic Press. ISBN 978-1-904455-61-5. 
  22. "An expanded inventory of conserved meiotic genes provides evidence for sex in Trichomonas vaginalis". PLoS ONE 3 (8): e2879. 2008. doi:10.1371/journal.pone.0002879. PMID 18663385.  http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=2488364
  23. "The first sexual lineage and the relevance of facultative sex". J. Mol. Evol. 48 (6): 779–83. June 1999. doi:10.1007/pl00013156. PMID 10229582. Archived from the original on 15 September 2000. https://web.archive.org/web/20000915204130/http://link.springer-ny.com/link/service/journals/00239/bibs/48n6p779.html. 
  24. "Ch. 1: DNA repair as the primary adaptive function of sex in bacteria and eukaryotes". DNA Repair: New Research. Hauppauge NY: Nova Science. 2012. pp. 1–49. ISBN 978-1-62100-808-8. https://www.novapublishers.com/catalog/product_info.php?products_id=31918. 
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