Difference between revisions of "Tritrichomonas foetus"

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='''''Tritrichomonas foetus'''''=
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{{OpenPagesTop}}
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'''''Also Known As''''' — Trichomoniasis — Trichomonosis — Tritrichomoniasis
 
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'''''Relevant Links''''' Trichomoniasis – Cattle, Avian Trichomoniasis, Trichomonas gallinae
 
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=='''Introduction'''==
 
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Protozoal pathogens causing disease primarily in cattle and felids.
 
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Identifiable by its pear-like shape, three anterior flagellae (recurrent flagellum) and an undulating membrane on one side.
 
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{{review}}
 
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{{Taxobox
 
{{Taxobox
 
|kingdom            =Protista
 
|kingdom            =Protista
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|phylum            =Protozoa
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|phylum            =[[:Category:Protozoa|Protozoa]]
 
|sub-phylum        =Sarcomastigophora
 
|sub-phylum        =Sarcomastigophora
 
|sub-class          =
 
|sub-class          =
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|species            =''T. foetus'' and more
 
|species            =''T. foetus'' and more
 
}}
 
}}
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Also known as: '''''Trichomonas foetus — Trichomonas fetus'''''
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==Introduction==
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[[File:Trichomonas.JPG|thumb|200px|right|''Trichomonas'' sp. with giemsa staining. Note the anterior flagellae and undulating membrane (source - Wikimedia Commons)]]
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''Tritrichomonas foetus'' is a [[:Category:Protozoa|protozoal pathogen]] causing disease primarily in cattle and felids. It is identifiable by its pear-like shape, three anterior flagellae (recurrent flagellum) and an undulating membrane on one side.
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==Lifecycle and Transmission==
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===Cattle===
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''Tritrichomonas foetus'' is a [[Trichomonosis - Cattle|venereal disease in cattle]] causing early embryonic death and abortion.
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The protozoa resides on the surface and in the lumen of the female reproductive tract and in the crypt of penile epithelial cells. Transmission is achieved from infected individuals during mating and direct contact.
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''T. foetus'' has no known cyst stage, although carrier cows occur very rarely and the pathogenesis of the carrier state is unknown. Therefore, trophozoites replicate simply by binary fission. It is thought that ''T. foetus'' feeds from host lipids and fatty acids <ref>Beach DH, Holz GGJr, Singh BN, Lindmark DG, 1991. '''Phospholipid metabolism of cultured ''Trichomonas vaginalis'' and ''Tritrichomonas foetus'''''. ''Molecular and Biochemical Parasitology'', 44(1:97-108;19)</ref>
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''T. foetus'' is sometimes isolated from foetal gut and lung but this is unlikely to be due to invasion and more likely due to swallowing or inhalation of amniotic fluid in utero.
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===Cats===
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''Tritrichomonas foetus'' is transmitted via the faecal: oral route in cats. Behaviours such as grooming may aid transmission by direct contact. The venereal route is unproven in cats.
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==Pathogenesis==
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===Cattle===
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Proteinases secreted by ''T. foetus'' degrade substrates such as fibrinogen, albumin and immunoglobulins, thus altering the biological environment and resulting in embryonic death. Pyometra is occasionally observed in females but males show no clinical signs. For more information see [[Trichomonosis - Cattle]].
  
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</noinclude>
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===Cats===
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=='''Lifecycle and Transmission'''==
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''T. foetus'' mainly causes [[Diarrhoea|diarrhoea]] by colonisation of the large intestine. Recovery is slow but longterm prognosis is good. Reports of resistance and success are available for most anthelmintic and antibiotic therapies.
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===='''Cattle'''====
 
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Tritrichomonas foetus Venereal disease causing early embryonic Death and abortion in cattle
 
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The protozoa resides on the surface and in the lumen of the female reproductive tract and in the crypt of penile epithelial cells. Transmission is achieved from infected individuals during mating.
 
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T foetus has no known cyst stage, although carrier cows occur very rarely and the pathogenesis of th carrier state is unknown. Therefore, trophozoites replicate simply by binary fission. It is thought that T foetus feeds from host lipids and fatty acids <ref>Beach DH, Holz GGJr, Singh BN, Lindmark DG, 1991. '''Phospholipid metabolism of cultured Trichomonas vaginalis and Tritrichomonas foetus'''.Molecular and Biochemical Parasitology, 44(1:97-108;19</ref>
 
  
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T foetus is sometimes isolated from foetal gut and lung but this is unlikely to be due to invasion and more likely due to swallowing or inhalation of amniotic fluid in utero.
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==Other trichomonad spp.==
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===='''Cats'''====
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Many other trichomonads reside as commensals in the gastrointestinal tract of other species. Two of the most well studied trichomonads are ''[[Trichomonas gallinae]]'', which occurs in birds, and ''Trichomonas vaginalis'', which is a common sexually transmitted infection of humans.
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Tritrichomonas foetus
 
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=='''Disease'''==
 
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'''''Cattle'''''
 
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Tritrichomoniasis is notifiable to the World Organisation for Animal Health (OIE)
 
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Proteinases secreted by T foetus degrades substrates such as fibrinogen, albumin and immunoglobulins, thus altering the biological environment and resulting in embryonic death.
 
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Pyometra is occasionally observed in females but males show no clinical signs.
 
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For more information see [[Trichomonosis - Cattle]]
 
  
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'''''Cats''''' [[Diarrhoea|diarrhoea]] caused by
 
  
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'''''Other species'''''
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<big>Relevant Links: '''[[Trichomonosis - Cattle]]''' </big>
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[Trichomonas gallinae] - Fatal disease in birds causing necrotic yellow lesions in upper Gastrointestinal tract, particularly in the [[Crop - Anatomy and Physiology|crop]].
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Transmitted to domesticated chickens and turkeys from infected wild pigeons
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Others such as [Trichomonas suis] and [] reside as commensals, usually in the gastrointestinal tract of other species such as pigs and guinea pigs respectively.
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{{Learning
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|flashcards = [[Protozoa_Flashcards#Other_Important_Protozoa|Protozoa Flashcards]]<br>[[Tritrichomonas foetus Flashcards]]
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}}
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==References==
 
<references/>
 
<references/>
  
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The Animal Health & Production Compendium, Tritrichomonas datasheet, accessed 02/06/2011 @ http://www.cabi.org/ahpc/
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Feline Advisory Bureau, '''Tritrichomonas infection in cats''', accessed 02/06/2011 @ http://www.fabcats.org/breeders/infosheets/tritrichomonas/
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Wright, I.(2010) '''Tritrichomonas foetus: Jumping the Species Barrier''', ''UK Vet'', Vol 15, 1-3.
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{{CABI source
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|datasheet = [http://www.cabi.org/ahpc/?compid=3&dsid=60673&loadmodule=datasheet&page=2144&site=160 ''Tritrichomonas foetus'']
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|date = 2 June 2011
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}}
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<br><br><br>
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{{Nick Lyons
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|date = 16 October 2011}}
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{{OpenPages}}
  
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==Test yourself with the Protozoa Flashcards==
 
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[[Protozoa_Flashcards#Other_Important_Protozoa|Protozoa Flashcards]]
 
 
[[Category:Miscellaneous_Protozoa]]
 
[[Category:Miscellaneous_Protozoa]]
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[[Category:To_Do_- Steph]]
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[[Category:CABI Expert Review Completed]][[Category:CABI AHPC Pages]]
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[[Category:Nick Lyons reviewed]]

Latest revision as of 17:40, 17 August 2012


Tritrichomonas foetus
Kingdom Protista
Phylum Protozoa
Family Trichomonadidae
Genus Tritrichomonas
Species T. foetus and more

Also known as: Trichomonas foetus — Trichomonas fetus

Introduction

Trichomonas sp. with giemsa staining. Note the anterior flagellae and undulating membrane (source - Wikimedia Commons)

Tritrichomonas foetus is a protozoal pathogen causing disease primarily in cattle and felids. It is identifiable by its pear-like shape, three anterior flagellae (recurrent flagellum) and an undulating membrane on one side.

Lifecycle and Transmission

Cattle

Tritrichomonas foetus is a venereal disease in cattle causing early embryonic death and abortion.

The protozoa resides on the surface and in the lumen of the female reproductive tract and in the crypt of penile epithelial cells. Transmission is achieved from infected individuals during mating and direct contact.

T. foetus has no known cyst stage, although carrier cows occur very rarely and the pathogenesis of the carrier state is unknown. Therefore, trophozoites replicate simply by binary fission. It is thought that T. foetus feeds from host lipids and fatty acids [1]

T. foetus is sometimes isolated from foetal gut and lung but this is unlikely to be due to invasion and more likely due to swallowing or inhalation of amniotic fluid in utero.

Cats

Tritrichomonas foetus is transmitted via the faecal: oral route in cats. Behaviours such as grooming may aid transmission by direct contact. The venereal route is unproven in cats.

Pathogenesis

Cattle

Proteinases secreted by T. foetus degrade substrates such as fibrinogen, albumin and immunoglobulins, thus altering the biological environment and resulting in embryonic death. Pyometra is occasionally observed in females but males show no clinical signs. For more information see Trichomonosis - Cattle.

Cats

T. foetus mainly causes diarrhoea by colonisation of the large intestine. Recovery is slow but longterm prognosis is good. Reports of resistance and success are available for most anthelmintic and antibiotic therapies.

Other trichomonad spp.

Many other trichomonads reside as commensals in the gastrointestinal tract of other species. Two of the most well studied trichomonads are Trichomonas gallinae, which occurs in birds, and Trichomonas vaginalis, which is a common sexually transmitted infection of humans.


Relevant Links: Trichomonosis - Cattle



Tritrichomonas foetus Learning Resources
FlashcardsFlashcards logo.png
Flashcards
Test your knowledge using flashcard type questions 		Protozoa Flashcards
Tritrichomonas foetus Flashcards



References

  1. ↑ Beach DH, Holz GGJr, Singh BN, Lindmark DG, 1991. Phospholipid metabolism of cultured Trichomonas vaginalis and Tritrichomonas foetus. Molecular and Biochemical Parasitology, 44(1:97-108;19)

Feline Advisory Bureau, Tritrichomonas infection in cats, accessed 02/06/2011 @ http://www.fabcats.org/breeders/infosheets/tritrichomonas/

Wright, I.(2010) Tritrichomonas foetus: Jumping the Species Barrier, UK Vet, Vol 15, 1-3.


CABIlogo

This article was originally sourced from The Animal Health & Production Compendium (AHPC) published online by CABI during the OVAL Project.

The datasheet was accessed on 2 June 2011.

This article has been expert reviewed by Nick Lyons MA VetMB CertCHP MRCVS

Date reviewed: 16 October 2011



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