نتایج جستجو برای: helminth parasite

تعداد نتایج: 42635  

Journal: :International Journal for Parasitology: Parasites and Wildlife 2021

2008
Robert Poulin

Aim Recently, Choudhury & Dick (2000) argued that helminth parasite communities in tropical freshwater fish are not richer than those in temperate fish. Here their data is re-examined in an analysis that takes into account important confounding variables, and their conclusions are revisited. Location The data set covers fish species from many tropical areas and from the north temperate area of ...

Journal: :Proceedings of The Royal Society B: Biological Sciences 2021

Gastrointestinal (GI) helminths are common parasites of humans, wildlife, and livestock, causing chronic infections. In humans poor nutrition or limited resources can compromise an individual's immune response, predisposing them to higher helminth burdens. This relationship has been tested in laboratory models by investigating infection outcomes following reductions specific nutrients. However,...

2011
Sahar Abubucker John Martin Christina M. Taylor Makedonka Mitreva

A vast majority of the burden from neglected tropical diseases result from helminth infections (nematodes and platyhelminthes). Parasitic helminthes infect over 2 billion, exerting a high collective burden that rivals high-mortality conditions such as AIDS or malaria, and cause devastation to crops and livestock. The challenges to improve control of parasitic helminth infections are multi-fold ...

2013
Indu Malhotra John Ouma Alex Wamachi John Kioko Peter Mungai Lynne Elson Davy Koech James W. Kazura Christopher L. King

Neonates exposed to parasite antigens (Ags) in utero may develop altered fetal immunity that could affect subsequent responses to infection. We hypothesized that cord blood lymphocytes (CBL) from offspring of mothers residing in an area highly endemic for schistosomiasis, filariasis, and tuberculosis in Kenya would either fail to respond or generate a predominantly Th2-associated cytokine respo...

Journal: :Bulletin of the Ecological Society of America 2023

We curated a dataset containing 5999 records of 361 freshwater fish species (~70% known in the country) and 483 endo- ectoparasitic helminths registered throughout Mexico over an 85-year period (from 1936 to 2021). Taxonomically, highest numbers host corresponded family Cichlidae, parasites trematode Diplostomidae. hope this will encourage researchers worldwide explore different ecological coev...

Journal: :Alimentary pharmacology & therapeutics 2004
M M Hunter D M McKay

Over the last decade major advances have been made in our understanding of the mechanisms and mediators of inflammation that hold the promise of the development of new therapies for inflammatory disease. While much is to be gleaned from the application of new technologies, assessment of the age-old host-parasite relationship may also provide insights on how to counter pathological inflammatory ...

2016
Guillermo Salgado-Maldonado María Teresa Novelo-Turcotte Juan Manuel Caspeta-Mandujano Gabriela Vazquez-Hurtado Benjamin Quiroz-Martínez Norman Mercado-Silva Mario Favila

In a tropical locality of Río La Antigua, Veracruz, Mexico, 11 fish species, represented by 244 individual fish from six freshwater fish families living sympatrically and synchronically, were examined for helminth parasites. A total of 36 taxa of helminths were recorded, 24 autogenic and 12 allogenic forms, including 6 monogeneans, 14 trematodes, 1 cestode, and 15 nematodes. Most helminth taxa ...

Journal: :Parasitology 2010
M A Rossin A I Malizia J T Timi R Poulin

Patterns of infection among hosts in a population are often driven by intrinsic host features such as age or sex, as well as by positive or negative interactions between parasite species. We investigated helminth parasitism in 2 South American rodent species, Ctenomys australis and C. talarum (Octodontidae), to determine whether the unusual solitary and subterranean nature of these hosts would ...

2015
King Shimumbo Nalubamba Eugene Chisela Bwalya Ngonda Saasa

The economic, physiological and immunological costs of endo-parasitism are documented to be higher in poultry with greater parasite intensities and diversity. The current study was undertaken to determine the effects of helminth burden in domestic guinea fowls at quantified natural infestation levels on body condition, haematological profile and spleen morphometrics. We hypothesized that the sp...

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