肥大吸虫、ファシオロプシス、肥大吸虫属、ファシオロプシス属、Fasciolopsis属

関: Fasciola、Fasciola hepatica、Fasciolidae、liver fluke

WordNet

a genus of Fasciolidae (同)genus Fasciolopsis
a genus of Fasciolidae (同)genus Fasciola
a family of Trematoda (同)family Fasciolidae

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/12/04 22:53:41」(JST)

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Fasciolopsis (/ˌfæʃiɵˈlɒpsɨs/^[1] or /fəˌʃaɪ.ɵˈlɒpsɨs/)^[2] is a genus of trematodes. Just one species is recognised: Fasciolopsis buski. It is a notable parasite of medical importance in humans and veterinary importance in pigs. It is prevalent in Southern and Eastern Asia. The term for infestation with Fasciolopsis is fasciolopsiasis.

Fasciolopsis buski

General anatomy

Foreparts of a cleared, stained specimen of Fasciolopsis buski.

Fasciolopsis buski is commonly called the giant intestinal fluke, because it is an exceptionally large parasitic fluke, and the largest known to parasitise humans. Its size is variable and a mature specimen might be as little as 2 cm long, but the body may grow to a length of 7.5 cm and a width of 2.5 cm. It is a common parasite of humans and pigs and is most prevalent in Southern and Southeastern Asia. It is a member of the family Fasciolidae in the order Echinostomida. The Echinostomida are members of the class Trematoda, the flukes. The fluke differs from most species that parasitise large mammals, in that they inhabit the gut rather than the liver as Fasciola species do. Fasciolopsis buski generally occupies the upper region of the small intestine, but in heavy infestations can also be found in the stomach and lower regions of the intestine. Fasciolopsis buski is the cause of the pathological condition fasciolopsiasis.^[3]

In London, George Busk first described Fasciolopsis buski in 1843 after finding it in the duodenum of a sailor. After years of careful study and self experimentation, in 1925, Claude Heman Barlow determined its life cycle in humans.^[4]^[5]^[6]

Morphology

Fasciolopsis buski is a large, leaf-shaped, dorsoventrally flattened fluke characterized by a blunt anterior end, undulating, unbranched ceca (sac-like cavities with single openings), tandem dendritic testes, branched ovaries, and ventral suckers to attach itself to the host. The acetabulum is larger than the oral sucker. The fluke has extensive vitelline follicles. It can be distinguished from other fasciolids by a lack of cephalic cone or "shoulders" and the unbranched ceca.

Life cycle

Adults produce over 25,000 eggs every day which take up to seven weeks to mature and hatch at 27–32 °C. Immature, unembryonated eggs are discharged into the intestine and stool. In two weeks, eggs become embryonated in water, and after about seven weeks, eggs release tiny parasitic organisms called miracidia, which invade a suitable snail intermediate host. Several species of genera Segmentina and Hippeutis serve as intermediate hosts. In the snail the parasite undergoes several developmental stages (sporocysts, rediae, and cercariae). The cercariae are released from the snail and encyst as metacercariae on aquatic plants such as water chestnut, water caltrop, lotus, bamboo, and other edible plants. The mammalian host, or the final host, becomes infected by ingesting metacercariae on the aquatic plants. After ingestion, the metacercariae excyst in the duodenum in about three months and attach to the intestinal wall. There they develop into adult flukes (20 to 75 mm by 8 to 20 mm) in approximately 3 months, attached to the intestinal wall of the mammalian hosts (humans and pigs). The adults have a life span of about one year.^[7]

References

^ US dict: făsh′·ē·ō·lŏp′·sĭs
^ US dict: fə·shī′·ō-
^ Roberts LS, Janovy, J, Jr. (2009). "Foundations of Parasitology." McGraw Hill, New York, USA, pp. 272–273. ISBN 0-07-302827-4
^ Barlow, Claude Heman (1921). "Experimental Ingestion of the Ova of Fasciolopsis buski; Also the Ingestion of Adult Fasciolopsis buski for the Purpose of Artificial Infestation". The Journal of Parasitology 8 (1): 40–44. doi:10.2307/3270940. JSTOR 3270940.
^ Dr. Claude Heman Barlow. Barlowgenealogy.com. Retrieved on 2012-12-18.
^ Barlow, Claude Heman (1925). "The Life Cycle of the Human Intestinal Fluke Fasciolopsis Buski (Lankester)". American Journal of Hygiene: 98.
^ Nakagawa, K. (1922). "The development of Fasciolopsis buski Lankester". J Parasitol 8 (4): 161–166. doi:10.2307/3271232.

External links

Centers for Disease Control and Prevention (CDC)
North-Eastern Hill University
BioLib
The Taxonomicon
Atlas of Medical Parasitology
ZipcodeZoo
Parasites in Humans

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. 腸管寄生虫症 intestinal flukes
2. 便顕微鏡検査に対するアプローチ approach to stool microscopy
3. 肝吸虫：肝蛭症 liver flukes fascioliasis

English Journal

The MF6p/FhHDM-1 major antigen secreted by the trematode parasite Fasciola hepatica is a heme-binding protein.

Martínez-Sernández V1, Mezo M, González-Warleta M, Perteguer MJ, Muiño L, Guitián E, Gárate T, Ubeira FM.
The Journal of biological chemistry.J Biol Chem.2014 Jan 17;289(3):1441-56. doi: 10.1074/jbc.M113.499517. Epub 2013 Nov 26.
Blood-feeding parasites have developed biochemical mechanisms to control heme intake and detoxification. Here we show that a major antigen secreted by Fasciola hepatica, previously reported as MF6p, of unknown function (gb|CCA61804.1), and as FhHDM-1, considered to be a helminth defense molecule bel
PMID 24280214

Neurological and ocular fascioliasis in humans.

Mas-Coma S1, Agramunt VH2, Valero MA2.
Advances in parasitology.Adv Parasitol.2014;84:27-149. doi: 10.1016/B978-0-12-800099-1.00002-8.
Fascioliasis is a food-borne parasitic disease caused by the trematode species Fasciola hepatica, distributed worldwide, and Fasciola gigantica, restricted to given regions of Africa and Asia. This disease in humans shows an increasing importance, which relies on its recent widespread emergence rela
PMID 24480313

Efficacy of an anthelmintic combination in sheep infected with Fasciola hepatica resistant to albendazole and clorsulon.

Martínez-Valladares M1, Cordero-Pérez C2, Rojo-Vázquez FA3.
Experimental parasitology.Exp Parasitol.2014 Jan;136:59-62. doi: 10.1016/j.exppara.2013.10.010. Epub 2013 Nov 6.
In the current study, we identified five sheep flocks with fasciolosis in the province of León (northwestern Spain) in order to determine the anthelmintic resistance status to three commonly used anthelmintics, namely albendazole (ABZ), triclabendazole (TCBZ) and clorsulon (CLOR). The identificatio
PMID 24211419

Japanese Journal

Anthelmintic efficacy of genistein, the active principle of Flemingia vestita (Fabaceae) : alterations in the free amino acid pool and ammonia levels in the fluke, Fasciolopsis buski

KAR Pradip Kumar,TANDON Veena,SAHA Nirmalendu
Parasitology international : official journal of the Japanese Society of Parasitology 53(4), 287-291, 2004-12-01
NAID 10014235545

Anthelmintic efficacy of Flemingia vestita : genistein-induced effect on the activity of nitric oxide synthase and nitric oxide in the trematode parasite, Fasciolopsis buski

KAR Pradip K.,TANDON Veena,SAHA Nirmalendu
Parasitology international : official journal of the Japanese Society of Parasitology 51(3), 249-257, 2002-09-01
NAID 50000654904

Anthelmintic efficacy of Flemingia vestita : genistein-induced effect on the activity of nitric oxide synthase and nitric oxide in the trematode parasite Fasciolopsis buski

KAR PK
Parasitol Int 51, 249-257, 2002
NAID 30007512844

Related Pictures

★リンクテーブル★

リンク元	「Fasciola」「肥大吸虫属」「肥大吸虫」「liver fluke」「Fasciolidae」
拡張検索	「Fasciolopsis属」

「Fasciola」

Fasciolopsis
	Fasciolopsis buski egg
Scientific classification
Kingdom:	Animalia
Phylum:	Platyhelminthes
Class:	Trematoda
Subclass:	Digenea
Order:	Echinostomida
Suborder:	Echinostomata
Family:	Fasciolidae
Genus:	Fasciolopsis; Looss, 1899
Species:	F. buski
Binomial name
	Fasciolopsis buski; Morakote & Yano, 1990

　　[★]

ファスキオラ、肝蛭属、ファスキオラ属、ファシオラ属、Fasciola属

関: Fasciola hepatica、Fasciolidae、Fasciolopsis、liver fluke

「肥大吸虫属」

　　[★]

ラ: Fasciolopsis
関: 肝吸虫、肝蛭属、肝蛭、肥大吸虫、ファシオロプシス属、Fasciolopsis属、ファシオロプシス、肝蛭科

「肥大吸虫」

　　[★]

英: Fasciolopsis, Fasciolopsis buski
関: 肥大吸虫属、ファシオロプシス属、Fasciolopsis属、ファシオロプシス

「liver fluke」

　　[★]

肝吸虫

関: Clonorchis sinensis、Fasciola、Fasciola hepatica、Fasciolidae、Fasciolopsis、Opisthorchis

「Fasciolidae」

　　[★]

肝蛭類、肝蛭科

関: Fasciola、Fasciola hepatica、fasciolid、Fasciolopsis、liver fluke

「Fasciolopsis属」

　　[★]

ラ: Fasciolopsis
関: 肥大吸虫属、肥大吸虫、ファシオロプシス属、ファシオロプシス

[1] US dict: făsh′·ē·ō·lŏp′·sĭs

[2] US dict: fə·shī′·ō-

[3] Roberts LS, Janovy, J, Jr. (2009). "Foundations of Parasitology." McGraw Hill, New York, USA, pp. 272–273. ISBN 0-07-302827-4

[4] Barlow, Claude Heman (1921). "Experimental Ingestion of the Ova of Fasciolopsis buski; Also the Ingestion of Adult Fasciolopsis buski for the Purpose of Artificial Infestation". The Journal of Parasitology 8 (1): 40–44. doi:10.2307/3270940. JSTOR 3270940.

[5] Dr. Claude Heman Barlow. Barlowgenealogy.com. Retrieved on 2012-12-18.

[6] Barlow, Claude Heman (1925). "The Life Cycle of the Human Intestinal Fluke Fasciolopsis Buski (Lankester)". American Journal of Hygiene: 98.

[7] Nakagawa, K. (1922). "The development of Fasciolopsis buski Lankester". J Parasitol 8 (4): 161–166. doi:10.2307/3271232.

匿名

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案内

案内

Fasciolopsis