小形アメーバ
WordNet
- leavened bread baked in a clay oven in India; usually shaped like a teardrop (同)naan
- your grandmother
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2016/01/06 23:47:42」(JST)
[Wiki en表示]
Endolimax |
Scientific classification |
Domain: |
Eukaryote |
Kingdom: |
Amoebozoa |
Phylum: |
Archamoebae |
Genus: |
Endolimax |
Endolimax is a genus of amoebozoa[1] that are found in the intestines of various animals, including the species E. nana found in humans. Originally thought to be non-pathogenic, studies suggest it can cause intermittent or chronic diarrhea.[2][3] Additionally, it is very significant in medicine because it can provide false positives for other tests, notably the similar species Entamoeba histolytica, the pathogen responsible for amoebic dysentery, and because its presence indicates the host has consumed fecal material. It forms cysts with four nuclei which excyst in the body and become trophozoites. Endolimax nana nuclei have a large endosome somewhat off-center and small amounts of visible chromatin or none at all.
Cyst
Cysts are small, with a spherical to ellipsoidal shape. Mature cysts contain four nuclei; immature cysts are rarely seen. These cysts measure 5-10 um, with a usual range of 6-8 um. In stained preparations, the nucleus has a distinct karysome that, while not as large as that seen in the trophozoite, is still larger than the karysome of the Entamoeba species. Peripheral chromatin is absent. Although the nuclei are not visible in unstained preparations, the karysomes are readily apparent in iodine-stained wet mounts. The cytoplasm may contain diffuse glycogen, and chromatid bodies are absent. Occasionally, small granules or inclusions may occur in the cytoplasm.
Trophozoite
This stage is small, measuring 6-12 µm, with an average range of 8-10 um. Living trophozoites are sluggish and generally non-progressive. The single nucleus sometimes is visible in unstained preparations. In stained organisms, the karyosome usually is large and irregularly shaped, but occasionally it may be fragmented or placed against one side of the nuclear membrane. There is no peripheral chromatin on the nuclear membrane. The cytoplasm, which is coarsely granular and often highly vacuolated, may contain bacteria. [4]
References
- ^ Silberman JD, Clark CG, Diamond LS, Sogin ML (December 1999). "Phylogeny of the genera Entamoeba and Endolimax as deduced from small-subunit ribosomal RNA sequences". Mol. Biol. Evol. 16 (12): 1740–51. doi:10.1093/oxfordjournals.molbev.a026086. PMID 10605115.
- ^ John Q. Stauffer MD & W. L. Levine (January 1974). "Chronic diarrhea related to Endolimax Nana". Parasitology Research 19 (1): 59–63. doi:10.1007/BF01073354. PMID 4809031.
- ^ Thaddeus K. Graczyk, Clive K. Shiff, Leena Tamang, Fair Munsaka, Anna M. Beitin and William J. Moss (December 2005). "The association of Blastocystis hominis and Endolimax nana with diarrheal stools in Zambian school-age children". Digestive Diseases and Sciences 98 (1): 38–43. doi:10.1007/s00436-005-0003-0. PMID 16249910.
- ^ Ash, Lawrence R. Atlas of Human Parasitology/Lawrence R. Ash, Thomas C. Orihel.-3rd ed. ISBN 0-89189-292-3
Amoebozoa
|
|
- Domain
- Archaea
- Bacteria
- Eukaryota
- (Kingdom
- Plant
- Hacrobia
- Heterokont
- Alveolata
- Rhizaria
- Excavata
- Amoebozoa
- Animal
- Fungi)
|
|
Lobosa |
Discosea
or Flabellinea
|
Dactylopodida
|
- Paramoebidae (Paramoeba, Korotnevella, Mayorella)
- Vexilliferidae (Neoparamoeba, Vexillifera)
|
|
Vannellida
|
- Vannellidae (Clydonella, Discamoeba, Lingulamoeba, Platyamoeba, Unda, Vannella)
|
|
Himatismenida
|
- Cochliopodiidae (Cochliopodium)
|
|
Dermamoebida
|
|
|
Thecamoebida
|
|
|
Centramoebida
|
- Acanthamoebidae (Acanthamoeba, Comandonia, Protacanthamoeba)
- Balamuthiidae (Balamuthia)
|
|
Trichosida
|
|
|
|
Tubulinea
|
Arcellinida
|
- Arcellidae (Arcella)
- Difflugidae (Centropyxis, Heleopera, Apodera, Difflugia)
|
|
Echinamoebida
|
- Echinamoebidae (Echinamoeba, Filamoeba, Gephyramoeba, Hartmannella vermiformis)
|
|
Euamoebida
|
- Amoebidae (Amoeba, Chaos, Hydramoeba, Metachaos, Polychaos, Trichamoeba)
- Hartmannellidae (Copromyxa, Copromyxella, Glaeseria, true Hartmannella, Nolandella, Saccamoeba)
|
|
Leptomyxida
|
- Leptomyxidae (Leptomyxa, Rhizamoeba)
- Flabellulidae (Flabellula, Paraflabellula)
|
|
|
Incertae sedis
|
|
|
|
Conosa |
Archamoebae
|
- Mastigamoebida: Mastigamoeba
- Mastigella
- Phreatamoeba
- non-ciliate (Endolimax, Endamoeba)
- Pelobiontida: Pelomyxidae (Pelomyxa)
- Entamoebidae/non-cilitate (Entamoeba)
- Mastigina
|
|
Mycetozoa
|
Macromycetozoa
|
- Dictyostelid: Dictyostelium
- Polysphondylium
- Acytostelium
- Myxogastria: Liceida, Stemonitida, Trichiida, Echinostelida, Physarida
|
|
Protosteliales
|
- Planoprotostelium
- Ceratiomyxa
- Protostelium
|
|
|
Variosea
|
|
|
|
Breviatea |
|
|
Index of protozoan infection
|
|
Description |
- Alveolata
- Amoebozoa
- Excavata
- Protist
|
|
Disease |
- Amoebozoa
- Chromalveolate
- Excavata
|
|
Treatment |
- Drugs
- amoeboa
- chromalveolate
- excavata
|
|
|
UpToDate Contents
全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.
- 1. 非病原性腸内原虫 nonpathogenic enteric protozoa
- 2. 消化管疾患関連関節炎 arthritis associated with gastrointestinal disease
English Journal
- Assessment of gastrointestinal parasites in wild chimpanzees (Pan troglodytes troglodytes) in southeast Cameroon.
- Drakulovski P1, Bertout S, Locatelli S, Butel C, Pion S, Mpoudi-Ngole E, Delaporte E, Peeters M, Mallié M.
- Parasitology research.Parasitol Res.2014 Apr 30. [Epub ahead of print]
- We tested 114 faecal samples from wild simian immunodeficiency virus (SIV)-positive (n = 43) and SIV-negative (n = 71) chimpanzees (Pan troglodytes troglodytes) in southeast Cameroon for the presence of gastrointestinal parasites by direct smear. We observed cysts from different protozoa (En
- PMID 24781023
- Diarrhea incidence and intestinal infections among rotavirus vaccinated infants from a poor area in Brazil: a spatial analysis.
- Santos CB1, Araújo KC, Jardim-Botelho A, Santos MB, Rodrigues A, Dolabella SS, Gurgel RQ.
- BMC public health.BMC Public Health.2014 Apr 24;14(1):399.
- BACKGROUND: Acute diarrhea is the second leading cause of mortality among children under 5 years of age in developing countries. The pathogen most strongly associated with diarrhea is rotavirus followed by enteric pathogens such as bacteria, helminthes and protozoan. Adequate sanitation and water su
- PMID 24761937
- Parasitic infections based on 320 clinical samples submitted to hanyang university, Korea (2004-2011).
- Choi SC1, Lee SY2, Song HO3, Ryu JS2, Ahn MH2.
- The Korean journal of parasitology.Korean J Parasitol.2014 Apr;52(2):215-20. doi: 10.3347/kjp.2014.52.2.215. Epub 2014 Apr 18.
- We analyzed 320 clinical samples of parasitic infections submitted to the Department of Environmental Biology and Medical Parasitology, Hanyang University from January 2004 to June 2011. They consisted of 211 nematode infections, 64 trematode or cestode infections, 32 protozoan infections, and 13 in
- PMID 24850969
Japanese Journal
- 胆汁うっ滞像を認めたE型肝炎に不顕性小型アメーバ感染を合併した1例
- 藤吉 誠,荘司 貞志,近藤 朝明,滝川 一,三宅 和彦,山中 正己
- 日本消化器病学会雑誌 89(12), 2804-2807, 1992
- NAID 130001069241
- THE PREVALENCE OF INTESTINAL PROTOZOA IN NAIVASHA, KITUI, MACHAKOS, TAVETA AND NANDI HILLS AREAS IN KENYA*
- Iseki Motohiro,Hayashi Kaoru,Gatika Simon M.,Siongok T.K. Arap,井関 基弘,林 薫,GATIKA SIMON M.,SIONGOK T. K. ARAP
- 日本熱帯医学会雑誌 11(3, 4), 249-256, 1983-12-15
- … Out of 2,114 specimens 673 (31.8%) were positive for Entamoeba histolytica, 1,105 (52.3%) for Entamoeba coli, 102 (4.8%) for Endolimax nana, 184 (8.7%) for Iodamoeba butschlii, 176 (8.3%) for Giardia lamblia, and 220 (10.4%) for Chilomastix mesnili. …
- NAID 120001664877
Related Links
- Endolimax nana is a genus of single-celled protozoan parasites belonging to a group of organisms known as the tramenopiles (also called heterokonts) that includes algae, diatoms, and water molds. view the recommended test: full gi ...
- Blastocystis hominis and Endolimax nana exist as two separate parasitic organisms; however co-infection with the two individual parasites has been well documented. Although often symptomatic in immunocompromised ...
Related Pictures
★リンクテーブル★
[★]
- ラ
- Endolimax nana
- 関
- 小形アメーバ
[★]
エンドリマックス属、Endolimax属
[★]
N-アセチルノイラミン酸