Biomaterial Database

Concurrent infections of Hymenolepis diminuta and Trichinella spiralis in the rat intestine. 1980

B B Silver, and T A Dick, and H E Welch

The intestinal distribution of Trichinella spiralis and Hymenolepis diminuta in rats was studied in single and concurrent infections. Results showed that the location of T. spiralis was not significantly changed in concurrent infections, but higher populations of T. spiralis in single and concurrent infections resulted in a posterior shift in position. Trichinella spiralis affected H. diminuta distribution significantly by causing a posterior shift in the position of scoleces and biomass and a loss of circadian rhythm. Infection with 4,000 T. spiralis larvae resulted in decreased tapeworm weight and fecundity, and destrobilation of H. diminuta from day 8 to 18 of the T. spiralis intestinal stage. Hymenolepis diminuta moved anteriorly to its preferred microhabitat as the T. spiralis intestinal stage decreased.

UI	MeSH Term	Description	Entries
D007422	Intestines	The section of the alimentary canal from the STOMACH to the ANAL CANAL. It includes the LARGE INTESTINE and SMALL INTESTINE.	Intestine
D002940	Circadian Rhythm	The regular recurrence, in cycles of about 24 hours, of biological processes or activities, such as sensitivity to drugs or environmental and physiological stimuli.	Diurnal Rhythm,Nyctohemeral Rhythm,Twenty-Four Hour Rhythm,Nycthemeral Rhythm,Circadian Rhythms,Diurnal Rhythms,Nycthemeral Rhythms,Nyctohemeral Rhythms,Rhythm, Circadian,Rhythm, Diurnal,Rhythm, Nycthemeral,Rhythm, Nyctohemeral,Rhythm, Twenty-Four Hour,Rhythms, Circadian,Rhythms, Diurnal,Rhythms, Nycthemeral,Rhythms, Nyctohemeral,Rhythms, Twenty-Four Hour,Twenty Four Hour Rhythm,Twenty-Four Hour Rhythms
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006925	Hymenolepiasis	Infection with tapeworms of the genus Hymenolepis.	Hymenolepis Infection,Hymenolepiases,Hymenolepis Infections,Infection, Hymenolepis,Infections, Hymenolepis
D006926	Hymenolepis	A genus of small tapeworms of birds and mammals.	Hymenolepi
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
D014234	Trichinella	A genus of parasitic nematodes that causes TRICHINELLOSIS in man and other animal.	Trichina,Trichinas,Trichinellas
D014235	Trichinellosis	An infection with TRICHINELLA. It is caused by eating raw or undercooked meat that is infected with larvae of nematode worms TRICHINELLA genus. All members of the TRICHINELLA genus can infect human in addition to TRICHINELLA SPIRALIS, the traditional etiological agent. It is distributed throughout much of the world and is re-emerging in some parts as a public health hazard and a food safety problem.	Human Trichinellosis,Trichinelliasis,Trichinosis,Human Trichinelloses,Trichinelliases,Trichinelloses,Trichinelloses, Human,Trichinellosis, Human,Trichinoses
D051381	Rats	The common name for the genus Rattus.	Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus