Immune responses associated with intestinal nematode infections are characterized by the activation of T-helper 2 (Th2) cells. Previous studies demonstrated that during Trichinella spiralis infection, Th2 cells contribute to the development of intestinal muscle hypercontractility and to worm eviction from the gut, in part through signal transducer and activator of transcription factor 6 (Stat6)...

Cochlosoma sp. infection was identified in a single case among 60 stunted diarrheic native turkey poults, Meleagris galopavo. A large number of the flagellated parasites was found free or within the intervillous spaces of the jejunum, ileum and cecum. Moderate enteritis was associated with the parasites. In TEM studies of the parasagittal sections of the parasite, a prominent ventral sucker lik...

Toxoplasma gondii is an intracellular pathogen notable for its ability to establish a stable host-parasite relationship amongst a wide range of host species and in a large percentage of the human population. Toll-like receptor signaling through MyD88 is a critical pathway in initiating defense against this opportunistic protozoan and may also be a mediator of pathology during immune dysfunction...

Acanthogyrus (Acanthosentis) tilapiae parasites were collected from the intestines of 300 fish belonging to three tilapia species sourced at the River Nile, Giza, Egypt. The proboscis of the parasite was characterized by three rows of hooks that curved towards the posterior of the body. The first row is supported by unmodified hooks. The parasite tegument has a series of alternative folds and a...

toxocara canis (nematoda: ascaridae) is an intestinal nematode parasite of dogs, which can also cause disease in humans. transmission to humans usually occurs because of direct contact with t. canis eggs present in soil contaminated with the feces of infected dogs. this nematode has extraordinary abilities to survive for many years in different tissues of vertebrates, and develop to maturity in...

The sialylation of the oligosaccharides from small-intestinal mucins during a 13-day infectious cycle was studied in Sprague-Dawley rats with the parasite Nippostrongylus brasiliensis. Sialic acid analysis and release, permethylation and analysis by GC-MS of the sialylated oligosaccharides isolated from the 'insoluble' mucin complex revealed a relative decrease (4-7-fold) of N-glycolylneuramini...

The human enteric protozoan, Giardia lamblia, has surface membrane lectin activity which mediates parasite adherence to erythrocytes. To determine whether an intestinal binding site exists for this lectin we have studied the interaction in vitro between axenically cultured Giardia trophozoites and isolated rat intestinal epithelial cells. Scanning electron microscopy showed that Giardia attache...

The frequency of gastro-intestinal parasite has been increasing over the years resulting to loss of many species of ruminant animals and majority is in developing and tropical countries. Madagali Local Government Area is one of the Local Governments faced with numerous problems of helminthiasis occasioned by instability within the farming sectors. This study is aimed at determining and assessin...

Objective: To determine the epidemiology and control of intestinal parasitic infection among children in two communities of south Saint Lucia. Methods: Eight hundred ninety seven children participated in this study. Parasitic infections were confirmed by two stool examinations using the Kato Katz method and the mini-parasep concentration method. Control methods used were treatment of all infect...

SUMMARY hydatic cyst is a serious disease of man. That cause by a worm called taenia echinocococus, the adult worm lives in small bowel of dog and other canine host. The dog is the usual definitive host of this parasite and is important for transmition of this disease. In this study a total of 283 stray dags Teheran country were investigated for the present of intestinal metazoan parasites. T...