Results 151 to 160 of about 1,266 (193)
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Angiostrongylus spp. (Nematoda; Metastrongyloidea) of global public health importance
Research in Veterinary Science, 2021Human angiostrongyliasis is an important foodborne zoonosis, caused by the infection with Angiostrongylus costaricensis and Angiostrongylus cantonensis. These two species have a significant public health impact in different areas of the world. Angiostrongyliasis is re-emerging and expanding to urban settings rising significant concerns regarding the ...
Alessandra Loureiro Morassutti +1 more
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The unique lungworms (Nematoda: Metastrongyloidea) of the opossum (Didelphis marsupialis linnaeus) [PDF]
Systematic Parasitology, 1980 Prestwoodia delicata (Travassos, 1946) Anderson, 1978, Heterostrongylus heterostrongylus Travassos, 1925 and Didelphostrongylus hayesi Prestwood, 1976 are redescribed on the basis of new collections of specimens from Didelphis marsupialis from North and South America. The three genera are unique to the opossum.
Uta R. Strelive +2 more
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Lungworm (Nematoda: Metastrongyloidea) infections in Canadian phocids
Canadian Journal of Fisheries and Aquatic Sciences, 1998Otostrongylus circumlitus (Railliet, 1899) was found in 5% (16/308) of grey seals (Halichoerus grypus), 6% (1/17; intensity = 38) of harbour seals (Phoca vitulina), and none of 100 harp seals (Phoca groenlandica) from eastern Canada and none of 31 ringed seals (Phoca hispida) from Holman, Northwest Territories.
Jean Huot +2 more
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The genus Crenosoma (Nematoda: Metastrongyloidea) in New World mammals
Canadian Journal of Zoology, 1972Study of types and other specimens of Crenosoma from the lungs of carnivores indicates that there are only six known valid species in the New World, namely: C. vulpis (Dujardin 1844) Railliet 1915; C. potos Buckley 1930; C. petrowi Morozov 1939 (= ? C. schulzi Gagarin 1958); C. mephitidis Hobmaier 1941 (= C. microbursa Wallace 1941, C.
Roy C. Anderson, Robin E. Craig
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International Journal for Parasitology, 1992
Gravid Angiostrongylus cantonensis can utilize radiolabelled bicarbonate, orotate, uracil, uridine and cytidine but not cytosine, thymine and thymidine for the synthesis of RNA and DNA. In cell-free extracts of the worm, a phosphoribosyltransferase was shown to convert orotate to OMP and uracil to UMP.
Ronald C. Ko +2 more
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Gravid Angiostrongylus cantonensis can utilize radiolabelled bicarbonate, orotate, uracil, uridine and cytidine but not cytosine, thymine and thymidine for the synthesis of RNA and DNA. In cell-free extracts of the worm, a phosphoribosyltransferase was shown to convert orotate to OMP and uracil to UMP.
Ronald C. Ko +2 more
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Journal of Wildlife Diseases, 1974
Lungworm prevalence and intensity in pronghorn antelope (Antilocapra americana) were studied from the National Bison Range (NBR) and Yellowstone National Park (YNP). Collections were made from August, 1965 to July, 1966. Protostrongylus macrotis was recovered from 97 of 99 (96.9%) YNP pronghorns, with a mean intensity of 22.1 (0- 133) worms ...
David E. Worley +2 more
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Lungworm prevalence and intensity in pronghorn antelope (Antilocapra americana) were studied from the National Bison Range (NBR) and Yellowstone National Park (YNP). Collections were made from August, 1965 to July, 1966. Protostrongylus macrotis was recovered from 97 of 99 (96.9%) YNP pronghorns, with a mean intensity of 22.1 (0- 133) worms ...
David E. Worley +2 more
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Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1980
Abstract 1. 1. The pathways of purine ribonucleotide synthesis and interconversion that are operative in the gravid rat lung worm, Angiostrongylus cantonensis, were identified by radioisotope tracing in intact whole worms and by measurement of enzyme activities in cell-free extracts 2. 2.
Ronald C. Ko, Patrick C.L. Wong
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Abstract 1. 1. The pathways of purine ribonucleotide synthesis and interconversion that are operative in the gravid rat lung worm, Angiostrongylus cantonensis, were identified by radioisotope tracing in intact whole worms and by measurement of enzyme activities in cell-free extracts 2. 2.
Ronald C. Ko, Patrick C.L. Wong
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Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1979
1. Radioactivity was found to be associated with purine ribonucleotides in extracts of gravid adult Angiostrongylus cantonensis from the lungs of rats when the parasite was incubated in a medium containing [14C]glycine. 2. The rate of incorporation was at least 0.2 pmole/min per mg of parasite and approximately equal amounts of adenine and guanine ...
Patrick C.L. Wong, Ronald C. Ko
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1. Radioactivity was found to be associated with purine ribonucleotides in extracts of gravid adult Angiostrongylus cantonensis from the lungs of rats when the parasite was incubated in a medium containing [14C]glycine. 2. The rate of incorporation was at least 0.2 pmole/min per mg of parasite and approximately equal amounts of adenine and guanine ...
Patrick C.L. Wong, Ronald C. Ko
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Metastrongyles (Nematoda: Metastrongyloidea) of fisher (Martes pennanti) from Ontario
Canadian Journal of Zoology, 1976Fisher (Martes pennanti) collected from central Ontario were examined for metastrongyles. Trilobostrongylus bioccai Anderson, 1963 was found in 21%; Crenosoma petrowi Morozov, 1939 in 15%; and Sobolevingylus sp., Romanov, 1952 in 2%.
R. A. Borecky, R. E. Craig
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Canadian Journal of Zoology, 1971
In skunk (Mephitis mephitis), third-stage larvae of S. chitwoodorum penetrate the wall of the stomach and intestine where they rapidly complete 2 molts, 1 to 2 and 3 to 4 days later. Four to 5 days after infection, fifth-stage worms migrate from the gut wall into the peritoneal cavity. They then move into muscles of the abdominal wall.
Murray W. Lankester, Roy C. Anderson
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In skunk (Mephitis mephitis), third-stage larvae of S. chitwoodorum penetrate the wall of the stomach and intestine where they rapidly complete 2 molts, 1 to 2 and 3 to 4 days later. Four to 5 days after infection, fifth-stage worms migrate from the gut wall into the peritoneal cavity. They then move into muscles of the abdominal wall.
Murray W. Lankester, Roy C. Anderson
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