Eugene Lyons

Summary

Affiliation: University of Kentucky
Country: USA

Publications

  1. ncbi request reprint Observations in 2001 on hookworms ( Uncinaria spp.) in otariid pinnipeds
    E T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, KY 40546 0099, Lexington, USA
    Parasitol Res 89:503-5. 2003
  2. ncbi request reprint Historic importance of some aspects of research by O. Wilford Olsen on hookworms (Uncinaria lucasi) in northern fur seals (Callorhinus ursinus) and Steller sea lions (Eumatopias jubatus) in 1951 on St. Paul Island, Alaska
    E T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY 405465 0099, USA
    Parasitol Res 95:353-7. 2005
  3. pmc SvSXP: a Strongylus vulgaris antigen with potential for prepatent diagnosis
    Ulla V Andersen
    Department of Large Animal Science, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
    Parasit Vectors 6:84. 2013
  4. doi request reprint Further indication of lowered activity of ivermectin on immature small strongyles in the intestinal lumen of horses on a farm in Central Kentucky
    E T Lyons
    Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY 40546 0099, USA
    Parasitol Res 112:889-91. 2013
  5. ncbi request reprint Parasitological examination for presence of hookworms (Uncinaria spp.) in northern elephant seals (Mirounga angustirostris) at Año Nuevo State Reserve, California (2012)
    E T Lyons
    Department of Veterinary Science, University of Kentucky, Gluck Equine Research Center, Lexington, KY 40546 0099, USA
    Parasitol Res 111:1847-50. 2012
  6. doi request reprint Update on the prevalence of the hookworm, Uncinaria lucasi, in northern fur seals (Callorhinus ursinus) on St. Paul Island, Alaska, 2011
    Eugene T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY 40546 0099, USA
    Parasitol Res 111:1397-400. 2012
  7. doi request reprint Investigation of strongyle EPG values in horse mares relative to known age, number positive, and level of egg shedding in field studies on 26 farms in Central Kentucky (2010-2011)
    E T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY 40546 0099, USA
    Parasitol Res 110:2237-45. 2012
  8. ncbi request reprint Macrocyclic lactones for parasite control in equids
    E T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY 40546 0099, USA
    Curr Pharm Biotechnol 13:1070-7. 2012
  9. ncbi request reprint Seasonal prevalence and intensity of hookworms (Uncinaria spp.) in California sea lion (Zalophus californianus) pups born in 2002 on San Miguel Island, California
    E T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY 40546 0099, USA
    Parasitol Res 96:127-32. 2005
  10. ncbi request reprint Field studies on endoparasites of Thoroughbred foals on seven farms in central Kentucky in 2004
    E T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY 40546 0099, USA
    Parasitol Res 98:496-500. 2006

Collaborators

Detail Information

Publications40

  1. ncbi request reprint Observations in 2001 on hookworms ( Uncinaria spp.) in otariid pinnipeds
    E T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, KY 40546 0099, Lexington, USA
    Parasitol Res 89:503-5. 2003
    ..The apparent zero infection rate in these pups is possibly because the rocky terrain of this rookery is not suitable for hookworm transmission...
  2. ncbi request reprint Historic importance of some aspects of research by O. Wilford Olsen on hookworms (Uncinaria lucasi) in northern fur seals (Callorhinus ursinus) and Steller sea lions (Eumatopias jubatus) in 1951 on St. Paul Island, Alaska
    E T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY 405465 0099, USA
    Parasitol Res 95:353-7. 2005
    ..lucasi) is probably the same in both pinniped hosts. This information is especially important because very little has been published on taxonomy of hookworms in E. jubatus...
  3. pmc SvSXP: a Strongylus vulgaris antigen with potential for prepatent diagnosis
    Ulla V Andersen
    Department of Large Animal Science, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
    Parasit Vectors 6:84. 2013
    ..vulgaris on farms where reduced anthelmintic treatment intensity has been implemented. These issues highlight the need for an accurate and reliable assay for diagnosing prepatent S. vulgaris infection...
  4. doi request reprint Further indication of lowered activity of ivermectin on immature small strongyles in the intestinal lumen of horses on a farm in Central Kentucky
    E T Lyons
    Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY 40546 0099, USA
    Parasitol Res 112:889-91. 2013
    ..Data on five other helminth species were recorded...
  5. ncbi request reprint Parasitological examination for presence of hookworms (Uncinaria spp.) in northern elephant seals (Mirounga angustirostris) at Año Nuevo State Reserve, California (2012)
    E T Lyons
    Department of Veterinary Science, University of Kentucky, Gluck Equine Research Center, Lexington, KY 40546 0099, USA
    Parasitol Res 111:1847-50. 2012
    ..Evidence of hookworm presence was not detected in any of the samples examined. Possible reasons why hookworms were not found in northern elephant seals on the mainland of Año Nuevo State Reserve are discussed...
  6. doi request reprint Update on the prevalence of the hookworm, Uncinaria lucasi, in northern fur seals (Callorhinus ursinus) on St. Paul Island, Alaska, 2011
    Eugene T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY 40546 0099, USA
    Parasitol Res 111:1397-400. 2012
    ..lucasi in SAMs of the northern fur seals. Continued low prevalence of hookworms the last several years parallels the tremendous decline in the number of fur seals on SPI over a similar time period...
  7. doi request reprint Investigation of strongyle EPG values in horse mares relative to known age, number positive, and level of egg shedding in field studies on 26 farms in Central Kentucky (2010-2011)
    E T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY 40546 0099, USA
    Parasitol Res 110:2237-45. 2012
    ..While data were not as clear-cut on the SB and MLH mares, several of those which were negative and with "low" EPG values could be excluded from antiparasitic treatment...
  8. ncbi request reprint Macrocyclic lactones for parasite control in equids
    E T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY 40546 0099, USA
    Curr Pharm Biotechnol 13:1070-7. 2012
    ..Recently however lower than initial activity on ascarids and small strongyles has been found for both ivermectin and moxidectin...
  9. ncbi request reprint Seasonal prevalence and intensity of hookworms (Uncinaria spp.) in California sea lion (Zalophus californianus) pups born in 2002 on San Miguel Island, California
    E T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY 40546 0099, USA
    Parasitol Res 96:127-32. 2005
    ..No annual differences in intensity were found after adjusting for substrate and condition...
  10. ncbi request reprint Field studies on endoparasites of Thoroughbred foals on seven farms in central Kentucky in 2004
    E T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY 40546 0099, USA
    Parasitol Res 98:496-500. 2006
    ..Comparison was made on the prevalence of parasites in foals on five of the same farms in the 2004 study, which were part of a similar 14-farm project in 2003 (Lyons and Tolliver in Parasitol Res (2004) 92:400-404)...
  11. ncbi request reprint Prevalence of large endoparasites at necropsy in horses infected with Population B small strongyles in a herd established in Kentucky in 1966
    E T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY 40546 0099, USA
    Parasitol Res 99:114-8. 2006
    ..Oxyuris equi (one to 129) were recovered from seven horses (330 days to 23 years old). Thelazia lacrymalis (one to 85) infected the eyes of five horses (317 days to 11 years old)...
  12. doi request reprint Field tests demonstrating reduced activity of ivermectin and moxidectin against small strongyles in horses on 14 farms in Central Kentucky in 2007-2009
    Eugene T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY 40546 0099, USA
    Parasitol Res 108:355-60. 2011
    ..IVM has been used much more extensively in this geographical area than MOX. Reduced activity of MOX was evident even on farms with rare or no apparent previous use of MOX but with probable extensive use of IVM...
  13. ncbi request reprint Parasite field study in central Kentucky on thoroughbred foals (born in 2004) treated with pyrantel tartrate daily and other parasiticides periodically
    E T Lyons
    Department of Veterinary Science, University of Kentucky, Gluck Equine Research Center, Lexington, KY 40546 0099, USA
    Parasitol Res 100:473-8. 2007
    ..It is uncertain whether the low ascarid prevalence was from activity of pyrantel tartrate and/or the other drugs or to a limited source of infective eggs...
  14. ncbi request reprint Study (1991 to 2001) of drug-resistant Population B small strongyles in critical tests in horses in Kentucky at the termination of a 40-year investigation
    E T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY 40546 0099, USA
    Parasitol Res 101:689-701. 2007
    ..Data on prevalence and drug activity on other internal parasite species besides small strongyles also are given...
  15. doi request reprint Field studies indicating reduced activity of ivermectin on small strongyles in horses on a farm in Central Kentucky
    E T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY 4056 0099, USA
    Parasitol Res 103:209-15. 2008
    ..The results of this ivermectin investigation showed that the strongyle EPG counts started returning about twice as quickly post-ivermectin-treatment of horses than when the drug was first marketed in the early 1980s...
  16. doi request reprint Evaluation of parasiticidal activity of fenbendazole, ivermectin, oxibendazole, and pyrantel pamoate in horse foals with emphasis on ascarids (Parascaris equorum) in field studies on five farms in Central Kentucky in 2007
    E T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY 40546 0099, USA
    Parasitol Res 103:287-91. 2008
    ..and 33 with strongyle eggs (12% red.) and one farm at 2x (13.2 mg base/kg); 18 foals were examined, 13 with ascarid eggs (23% red.) and 15 with strongyle eggs (27% red.)...
  17. doi request reprint Probable reason why small strongyle EPG counts are returning "early" after ivermectin treatment of horses on a farm in Central Kentucky
    E T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY, 40546 0099, USA
    Parasitol Res 104:569-74. 2009
    ..This aspect helps strengthen the validity of the interpretation of the findings...
  18. ncbi request reprint Photomicrographic images of some features of Uncinaria spp (Nematoda: Ancylostomatidae) from otariid pinnipeds
    E T Lyons
    Department of Veterinary Science, University of Kentucky, Gluck Equine Research Center, Lexington, KY 40546 0099, USA
    Parasitol Res 95:346-52. 2005
    ..Information in the present paper should aid in this determination...
  19. doi request reprint Observations on development of natural infection and species composition of small strongyles in young equids in Kentucky
    Eugene T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY 40546 0099, USA
    Parasitol Res 109:1529-35. 2011
    ..Additional data are presented on the number of worms per foal, distribution of the worms in the parts (cecum, ventral colon, and dorsal colon) of the large intestine, and proportion of species found...
  20. doi request reprint Review of research on hookworms (Uncinaria lucasi Stiles, 1901) in northern fur seals (Callorhinus ursinus Linnaeus, 1758)
    Eugene T Lyons
    Department of Veterinary Science, University of Kentucky, Gluck Equine Research Center, Lexington, KY 40546 0099, USA
    Parasitol Res 109:257-65. 2011
    ..Emphasis is placed on research on this host-parasite system in the Pribilof Islands, AK, USA where the bulk of the studies has been performed...
  21. doi request reprint Further evaluation in field tests of the activity of three anthelmintics (fenbendazole, oxibendazole, and pyrantel pamoate) against the ascarid Parascaris equorum in horse foals on eight farms in Central Kentucky (2009-2010)
    Eugene T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY 40546 0099, USA
    Parasitol Res 109:1193-7. 2011
    ..Although the efficacy varied among the drugs, combined data for all farms indicated a significant reduction of ascarid infections for FBZ (p < 0.0001) and OBZ (p < 0.0001) but not for PRT (p = 0.0953)...
  22. doi request reprint Investigations of peritoneal and intestinal infections of adult hookworms (Uncinaria spp.) in northern fur seal (Callorhinus ursinus) and California sea lion (Zalophus californianus) pups on San Miguel Island, California (2003)
    Eugene T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY 40546 0099, USA
    Parasitol Res 109:581-9. 2011
    ..Further research, like in the present study, should help understand and monitor the apparent ever changing role of hookworm disease in the health of northern fur seal and California sea lion pups on SMI...
  23. doi request reprint Reduced activity of moxidectin and ivermectin on small strongyles in young horses on a farm (BC) in Central Kentucky in two field tests with notes on variable counts of eggs per gram of feces (EPGs)
    Eugene T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY 40546 0099, USA
    Parasitol Res 108:1315-9. 2011
    ..Most of the MOX- and IVM-treated horses in study B and some in study A had strongyle EPG counts returning almost twice as quickly as when these compounds were first marketed...
  24. ncbi request reprint Population-S benzimidazole- and tetrahydropyrimidine-resistant small strongyles in a pony herd in Kentucky (1977-1999): effects of anthelmintic treatment on the parasites as determined in critical tests
    Eugene Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY 40546 0099, USA
    Parasitol Res 91:407-11. 2003
    ..Numbers of small strongyles were highest in 1987 and 1999...
  25. ncbi request reprint Field test data on small strongyles in evaluation of activity of fenbendazole given once a day for 5 consecutive days to thoroughbred yearlings on two farms in Kentucky in 2002 and 2003
    E T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY 40546 0099, USA
    Parasitol Res 91:312-5. 2003
    ..Examination of cultures of fecal samples from these yearlings revealed that only small strongyle larvae were present. There was obvious FBZ-resistance of the small strongyles in yearlings on both farms at the dose rates used...
  26. ncbi request reprint Prevalence of parasite eggs (Strongyloides westeri, Parascaris equorum, and strongyles) and oocysts (Emeria leuckarti) in the feces of Thoroughbred foals on 14 farms in central Kentucky in 2003
    E T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY 40546 0099, USA
    Parasitol Res 92:400-4. 2004
    ..6%) and for oocysts of Eimeria leuckarti (41.6%) in feces of foals. Foals had infections of S. westeri on six farms (42.9%), of P. equorum on 12 farms (86%), and of strongyles and E. leuckarti on all 14 farms (100%)...
  27. doi request reprint Critical tests evaluating efficacy of moxidectin against small strongyles in horses from a herd for which reduced activity had been found in field tests in Central Kentucky
    Eugene T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY 40546 0099, USA
    Parasitol Res 107:1495-8. 2010
    ..In any event, after treatment of some horses with moxidectin, the life cycle of small strongyles is shorter now than at the onset of usage of this compound...
  28. ncbi request reprint Resistance of population-B equine strongyles to thiabendazole, oxfendazole, and phenothiazine (1981 to 1987)
    J H Drudge
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington 40546 0099
    Am J Vet Res 52:1308-12. 1991
    ..This suggests a similar mode of action between phenothiaznie and the BZ compounds...
  29. ncbi request reprint Control of cambendazole-resistant small strongyles (Population S) with oxibendazole in a pony band: an 8 year field test (1984-1992)
    E T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington 40546 0099
    Vet Parasitol 52:271-7. 1994
    ..However, reductions of the counts were the lowest for the last year of the study...
  30. ncbi request reprint Natural superinfection of Parascaris equorum in a stall-confined orphan horse foal
    E T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington 40546 0099, USA
    Vet Parasitol 66:119-23. 1996
    ..The foal had been observed repeatedly eating its own feces and the question is posed as to whether "recycling' of P. equorum eggs several times by coprophagy allowed time for embryonation and reinfection to occur...
  31. doi request reprint Shortened strongyle-type egg reappearance periods in naturally infected horses treated with moxidectin and failure of a larvicidal dose of fenbendazole to reduce fecal egg counts
    M G Rossano
    Department of Animal and Food Sciences, 611 WP Garrigus Bldg, University of Kentucky, Lexington, KY 40546, USA
    Vet Parasitol 173:349-52. 2010
    ..Results of this study do not support the use of the larvicidal dose of FBZ for small strongyle control. Larger field studies will be needed to investigate whether egg reappearance periods are shortening for MOX-treated horses...
  32. ncbi request reprint Determination of the efficacy of pyrantel pamoate at the therapeutic dose rate against the tapeworm Anoplocephala perfoliata in equids using a modification of the critical test method
    E T Lyons
    Department of Veterinary Science, College of Agriculture, University of Kentucky, Gluck Equine Research Center, Lexington 40546 0099
    Vet Parasitol 31:13-8. 1989
    ..The combined average removal of A. perfoliata for both formulations was 87%. Two abnormal (triradiate) specimens of A. perfoliata were recovered; one from each of two different equids...
  33. ncbi request reprint Controlled tests of activity of several antiparasitic compounds against natural infections of Haemonchus contortus and other helminths in lambs from a flock established in 1962
    E T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington 40546 0099
    Am J Vet Res 54:406-10. 1993
    ..Efficacy against immature H contortus for TBZ did not exceed 86%. Activity against immature and mature stages of this parasite was good overall for the other benzimidazoles.(ABSTRACT TRUNCATED AT 250 WORDS)..
  34. ncbi request reprint Historical perspective of cyathostomes: prevalence, treatment and control programs
    E T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington 40546 0099, USA
    Vet Parasitol 85:97-111; discussion 111-2, 215-25. 1999
    ..Innovative parasite-control programs, relying less on drugs, need to be developed...
  35. ncbi request reprint Prevalence of selected species of internal parasites in equids at necropsy in central Kentucky (1995-1999)
    E T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY 40546 0099, USA
    Vet Parasitol 92:51-62. 2000
    ..Compared to previous studies (about 15-25 years ago) in Kentucky, the present survey indicated the genera Onchocerca and Gasterophilus greatly declined but Thelazia, Anoplocephala, and Parascaris did not...
  36. ncbi request reprint Continuance of studies on Population S benzimidazole-resistant small strongyles in a Shetland pony herd in Kentucky: effect of pyrantel pamoate (1992-1999)
    E T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, 40546 0099, Lexington, KY, USA
    Vet Parasitol 94:247-56. 2001
    ..The previously reported ineffective activity of OBZ on this population of small strongyles continued. Data are presented on prevalence and drug activity on several species of internal parasites besides small strongyles...
  37. ncbi request reprint Transmission of endoparasites in horse foals born on the same pasture on a farm in central Kentucky (1996-1999)
    E T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY 40546 0099, USA
    Vet Parasitol 97:113-21. 2001
    ..Clinical problems associated with parasitism were not observed in any of the 92 foals in the long-term investigation...
  38. ncbi request reprint Current prevalence of adult Uncinaria spp. in northern fur seal (Callorhinus ursinus) and California sea lion (Zalophus californianus) pups on San Miguel Island, California, with notes on the biology of these hookworms
    E T Lyons
    Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, KY 40546 0099, USA
    Vet Parasitol 97:309-18. 2001
    ..One hookworm larva was recovered from milk stripped from the teats of a stranded Z. californianus female at The Marine Mammal Center, Sausalito, CA...
  39. ncbi request reprint Strongyloidiasis in a Cope's grey tree frog (Hyla chrysoscelis)
    J C Patterson-Kane
    Livestock Disease Diagnostic Center, Department of Veterinary Science, University of Kentucky, 1429 Newtown Pike, Lexington, Kentucky 40511-1280, USA
    J Zoo Wildl Med 32:106-10. 2001
    ..Intestinal strongyloidiasis should be considered as a cause for protein-losing enteropathy and death in frogs...
  40. ncbi request reprint Contrasting effects of heterozygosity on survival and hookworm resistance in California sea lion pups
    Karina Acevedo-Whitehouse
    Laboratory of Molecular Ecology, Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK
    Mol Ecol 15:1973-82. 2006
    ..Our study could have important implications for the conservation of small, isolated or threatened populations, particularly when they are at a risk of facing pathogenic challenges...