Biomaterial Database

Direct development of enteroepithelial stages of Toxoplasma in the intestines of cats fed cysts. 1979

J P Dubey

Four newborn (1- to 2-day-old) and two weaned (55- to 67-day-old) Toxoplasma-free cats were killed between 23 and 120 hours after ingestion of Toxoplasma gondii cysts from the brains of infected mice, and the cats' tissues were examined for the development of Toxoplasma. Intraepithelial Toxoplasma types (B, C, and D) were found in sections of small intestine. Homogenates of mesenteric lymph nodes, spleen, and liver of each cat were injected intraperitoneally into each of six weaned Toxoplasma-free cats to test the hypothesis of extraintestinal pregametogonic stages, as proposed by Overdulve (1978). Of the six cats injected with infected feline tissues, none shed oocysts within 17 days. Thus, the hypothesis of extraintestinal pregametogonic stages was not confirmed.

UI	MeSH Term	Description	Entries
D007421	Intestine, Small	The portion of the GASTROINTESTINAL TRACT between the PYLORUS of the STOMACH and the ILEOCECAL VALVE of the LARGE INTESTINE. It is divisible into three portions: the DUODENUM, the JEJUNUM, and the ILEUM.	Small Intestine,Intestines, Small,Small Intestines
D002371	Cat Diseases	Diseases of the domestic cat (Felis catus or F. domesticus). This term does not include diseases of the so-called big cats such as CHEETAHS; LIONS; tigers, cougars, panthers, leopards, and other Felidae for which the heading CARNIVORA is used.	Feline Diseases,Cat Disease,Disease, Cat,Disease, Feline,Diseases, Cat,Diseases, Feline,Feline Disease
D002415	Cats	The domestic cat, Felis catus, of the carnivore family FELIDAE, comprising over 30 different breeds. The domestic cat is descended primarily from the wild cat of Africa and extreme southwestern Asia. Though probably present in towns in Palestine as long ago as 7000 years, actual domestication occurred in Egypt about 4000 years ago. (From Walker's Mammals of the World, 6th ed, p801)	Felis catus,Felis domesticus,Domestic Cats,Felis domestica,Felis sylvestris catus,Cat,Cat, Domestic,Cats, Domestic,Domestic Cat
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D000831	Animals, Newborn	Refers to animals in the period of time just after birth.	Animals, Neonatal,Animal, Neonatal,Animal, Newborn,Neonatal Animal,Neonatal Animals,Newborn Animal,Newborn Animals
D014122	Toxoplasma	A genus of protozoa parasitic to birds and mammals. T. gondii is one of the most common infectious pathogenic animal parasites of man.	Toxoplasma gondii,Toxoplasma gondius,Toxoplasmas,gondius, Toxoplasma
D014124	Toxoplasmosis, Animal	Acquired infection of non-human animals by organisms of the genus TOXOPLASMA.	Animal Toxoplasmoses,Animal Toxoplasmosis,Toxoplasmoses, Animal