B Fried

Summary

Affiliation: Lafayette College
Country: USA

Publications

  1. doi request reprint Infection of neonatal Biomphalaria glabrata with the miracidia of Echinostoma caproni
    Amanda E Balaban
    Department of Biology, Lafayette College, Easton, Pennsylvania 18042, USA
    J Parasitol 99:543. 2013
  2. doi request reprint Longevity of Zygocotyle lunata in Balb/c mice and long-term survival of digeneans in vertebrate hosts
    B Fried
    Department of Biology, Lafayette College, Easton, PA 18042, USA
    J Helminthol 85:476-7. 2011
  3. pmc Postmetacercarial changes in Echinostoma caproni maintained in a defined medium plus calf serum
    B Fried
    Department of Biology, Lafayette College Easton, PA 18042, USA
    Korean J Parasitol 38:173-5. 2000
  4. ncbi request reprint In vitro excystment of the metacercariae of Ribeiroia ondatrae
    Bernard Fried
    Department of Biology, Lafayette College, Easton, PA 18042, USA
    Parasitol Res 95:293-5. 2005
  5. pmc Effects of exogenous glucose on survival and infectivity of Schistosoma mansoni cercariae
    Bernard Fried
    Department of Biology, Lafayette College, Easton, PA 18042, USA
    Korean J Parasitol 40:55-8. 2002
  6. ncbi request reprint Effects of copper sulphate on in vitro encystment of the cercariae of Echinostoma caproni
    B Fried
    Department of Biology, Lafayette College, Easton, Pennsylvania 18042, USA
    J Helminthol 78:371-2. 2004
  7. ncbi request reprint Emergence of cercariae of Echinostoma caproni and Schistosoma mansoni from Biomphalaria glabrata under different laboratory conditions
    B Fried
    Department of Biology, Lafayette College, Easton, PA 18042, USA
    J Helminthol 76:369-71. 2002
  8. ncbi request reprint In vitro and in vivo encystment of the cercariae of Echinostoma caproni
    Bernard Fried
    Department of Biology, Lafayette College, Easton, Pennsylvania 18042, USA
    J Parasitol 88:1124-9. 2002
  9. ncbi request reprint Criteria for species determination in the 'revolutum' group of Echinostoma
    Bernard Fried
    Department of Biology, Lafayette College, Easton, Pennsylvania 18042, USA
    J Parasitol 90:917. 2004
  10. ncbi request reprint Effects of temperature on survival, infectivity and in vitro encystment of the cercariae of Echinostoma caproni
    B Fried
    Department of Biology, Lafayette College, PA 18042, USA
    J Helminthol 77:235-8. 2003

Collaborators

Detail Information

Publications83

  1. doi request reprint Infection of neonatal Biomphalaria glabrata with the miracidia of Echinostoma caproni
    Amanda E Balaban
    Department of Biology, Lafayette College, Easton, Pennsylvania 18042, USA
    J Parasitol 99:543. 2013
    ..However, the survival of exposed neonates was significantly (P < 0.05, Student's t-test) less than that of the unexposed controls at 1, 2, 3, and 4 wk PE...
  2. doi request reprint Longevity of Zygocotyle lunata in Balb/c mice and long-term survival of digeneans in vertebrate hosts
    B Fried
    Department of Biology, Lafayette College, Easton, PA 18042, USA
    J Helminthol 85:476-7. 2011
    ..An additional aspect of this article is a review of the pertinent literature published from 1937 to 2007 on ageing and longevity of digeneans...
  3. pmc Postmetacercarial changes in Echinostoma caproni maintained in a defined medium plus calf serum
    B Fried
    Department of Biology, Lafayette College Easton, PA 18042, USA
    Korean J Parasitol 38:173-5. 2000
    ..Some mortality was noted in culture by day 5, but most organisms were still alive when the cultures were terminated on day 7...
  4. ncbi request reprint In vitro excystment of the metacercariae of Ribeiroia ondatrae
    Bernard Fried
    Department of Biology, Lafayette College, Easton, PA 18042, USA
    Parasitol Res 95:293-5. 2005
    ..Excystation in vitro in AP at 41 degrees C is compatible with the fact that this organism establishes itself in the acid-pepsin environment of the proventriculus of avian hosts...
  5. pmc Effects of exogenous glucose on survival and infectivity of Schistosoma mansoni cercariae
    Bernard Fried
    Department of Biology, Lafayette College, Easton, PA 18042, USA
    Korean J Parasitol 40:55-8. 2002
    ..Exogeneous glucose added to ASW prolonged the survival of S. mansoni cercariae and increased infectivity in terms of worm recovery...
  6. ncbi request reprint Effects of copper sulphate on in vitro encystment of the cercariae of Echinostoma caproni
    B Fried
    Department of Biology, Lafayette College, Easton, Pennsylvania 18042, USA
    J Helminthol 78:371-2. 2004
    ..A concentration of 10 mg l(-1) CuSO4 in Locke's-ASW (1:1) allowed for normal in vitro encystment within 48 h and these cysts were capable of excystation in a trypsin-bile salts medium...
  7. ncbi request reprint Emergence of cercariae of Echinostoma caproni and Schistosoma mansoni from Biomphalaria glabrata under different laboratory conditions
    B Fried
    Department of Biology, Lafayette College, Easton, PA 18042, USA
    J Helminthol 76:369-71. 2002
    ..caproni and S. mansoni. Increased snail activity associated with feeding behaviour was probably responsible for the enhanced cercarial sheds observed in this study...
  8. ncbi request reprint In vitro and in vivo encystment of the cercariae of Echinostoma caproni
    Bernard Fried
    Department of Biology, Lafayette College, Easton, Pennsylvania 18042, USA
    J Parasitol 88:1124-9. 2002
    ..From 6 to 24 hr PI, 93-100% of the cercariae were recovered as metacercarial cysts in the snail tissue. Treatment of these cysts in the TB medium resulted in 96% excystation within 2 hr at 41 C...
  9. ncbi request reprint Criteria for species determination in the 'revolutum' group of Echinostoma
    Bernard Fried
    Department of Biology, Lafayette College, Easton, Pennsylvania 18042, USA
    J Parasitol 90:917. 2004
  10. ncbi request reprint Effects of temperature on survival, infectivity and in vitro encystment of the cercariae of Echinostoma caproni
    B Fried
    Department of Biology, Lafayette College, PA 18042, USA
    J Helminthol 77:235-8. 2003
    ..caproni cercariae in Locke's solution:ASW (1:1) showed that encystment was optimal at 23 degrees C (78% encystment) and that it declined to 44% at 28 degrees C and became almost nil (0.02%) at 12 or 37.5 degrees C...
  11. ncbi request reprint Food-borne intestinal trematodiases in humans
    Bernard Fried
    Department of Biology, Lafayette College, Easton, PA 18042, USA
    Parasitol Res 93:159-70. 2004
    ..Because most of the implicated species are in the Echinostomatidae and Heterophyidae, emphasis in the review is placed on species in these families...
  12. ncbi request reprint Cercarial tail loss in Echinostoma caproni: the influence of in vivo encystment and copper sulphate
    B Fried
    Department of Biology, Lafayette College, Easton, Pennsylvania 18042, USA
    J Helminthol 79:177-8. 2005
    ..In the in vivo studies, by 1 h PI, 59+/-5% of cercariae had lost their tails and only 4+/-1% of the cercariae were actively swimming in the multi-well dishes. At 3 h PI, 72+/-3% of the cercariae began to form cysts within the snails...
  13. ncbi request reprint Age of adult worms of Echinostoma caproni does not affect development of miracidia
    Bernard Fried
    Department of Biology, Lafayette College, Easton, Pennsylvania 18042, USA
    J Parasitol 91:1220-1. 2005
    ..Further studies are needed to determine if the egg viability of other species in the "revolutum" group follow that of E. caproni or E. friedi...
  14. ncbi request reprint Effects of a 300-metacercarial cyst inoculum on worm recovery and crowding of Echinostoma caproni in Balb/C mice
    Bernard Fried
    Department of Biology, Lafayette College, Easton, PA 18042, USA
    Parasitol Res 101:1701-2. 2007
    ..We also showed that there was a significant decrease in body area and uterine egg counts in worms from the host that had the greatest number of worms compared to those that were obtained from hosts with lower worm burdens...
  15. doi request reprint Helminths in human carcinogenesis
    Bernard Fried
    Department of Biology, Lafayette College, Easton, PA 10842, USA
    Cancer Lett 305:239-49. 2011
    ..The review examines mainly the epidemiology and pathology of these helminthic infections in humans and considers what we know about the mechanisms associated with the carcinogenicity of these three trematodes in humans...
  16. doi request reprint Food-borne trematode infections of humans in the United States of America
    Bernard Fried
    Biology Department, Lafayette College, Easton, PA 18042, USA
    Parasitol Res 106:1263-80. 2010
    ..Treatment of the FBT mentioned in this review consists of various regimens of praziquantel, except for F. hepatica where the drug of choice is triclabendazole...
  17. doi request reprint The association of Zygocotyle lunata and Echinostoma trivolvis with Chaetogaster limnaei, an ectosymbiont of Helisoma trivolvis
    Bernard Fried
    Department of Biology, Lafayette College, Easton, Pennsylvania 18042, USA
    J Parasitol 94:553-4. 2008
    ..trivolvis were seen in the stomachs of the chaetogasters. The protective action of the chaetogasters on the transmission of the cercariae of E. trivolvis and Z. lunata to second intermediate hosts in the wild awaits further study...
  18. doi request reprint Effects of various physical and chemical factors on excystation of the encysted metacercariae of Echinostoma caproni
    Bernard Fried
    Department of Biology, Lafayette College, 204 Kunkel Hall, Easton, Pennsylvania 18042, USA
    J Parasitol 93:1388-91. 2007
    ....
  19. ncbi request reprint Longevity of Echinostoma caproni in Balb/c mice
    B Fried
    Department of Biology, Lafayette College, Easton PA 18042, USA
    J Helminthol 82:95-6. 2008
    ..The mean +/- SE of eggs/uterus per worm (n = 10) was 243 +/- 6. This strain of mouse will be suitable to study the effect of long-term survival on the host-parasite relationship of E. caproni in Balb/c mice...
  20. ncbi request reprint Thin-layer chromatography and histochemistry analyses of neutral lipids in Helisoma trivolvis infected with four species of larval trematodes
    B Fried
    Department of Biology, Lafayette College, Easton, PA 18042, USA
    Parasitol Res 84:369-73. 1998
    ..lunata and the armatae xiphidiocercaria to ORO-positive droplets in the excretory system of Ribeiroia sp. Rediae and sporocysts contained ORO-positive material in the body wall and in the space between cercariae...
  21. ncbi request reprint Effects of snail-conditioned water from Biomphalaria glabrata on hatching of Echinostoma caproni miracidia
    B Fried
    Department of Biology, Lafayette College, Easton, PA 18042, USA
    Parasitol Res 85:155-7. 1999
    ..However, the lipophilic fraction of the SCW extract caused significant hatching. Substances in SCW significantly increase hatching of E. caproni miracidia, but details on what these compounds are remain obscure...
  22. ncbi request reprint Viability of the encysted metacercariae of Echinostoma caproni judged by light microscopy versus chemical excystation
    Bernard Fried
    Department of Biology, Lafayette College, Easton, Pennsylvania 18042
    J Parasitol 93:947. 2007
    ..We concluded that LM alone underestimated the viability of cysts and that determination of cyst viability was more accurate under assessment by chemical excystation...
  23. ncbi request reprint Effects of tonicity, digestive enzymes and bile salts, and nutrient media on the survival of excysted metacercariae of Echinostoma caproni
    Bernard Fried
    Department of Biology, Lafayette College, Easton, PA 18042, USA
    Parasitol Res 93:1-4. 2004
    ..1% glucose and in Locke's 1x plus 1% hen's egg yolk. Significant survival of excysted metacercariae in Locke's 1x supplemented with either 0.1% proline, 0.1% threonine, or 0.1% serine did not occur...
  24. ncbi request reprint Effects of the anthelmintics clorsulon, rafoxanide, mebendazole and arprinocid on Echinostoma caproni in ICR mice [corrected and reapublished in J Helminthol 1996 Mar;70(1):95-6]
    K Maurer
    Department of Biology, Lafayette College, Eston, Pennsylvania 18042, USA
    J Helminthol 69:373-4. 1995
    ..Mebendazole and arprinocid were ineffective in eliminating worms at 1 or 2 days post drug administration...
  25. ncbi request reprint Effects of diet on the development of Schistosoma mansoni in Biomphalaria glabrata and on the neutral lipid content of the digestive gland-gonad complex of the snail
    B Fried
    Department of Biology, Lafayette College, Easton, Pennsylvania 18042, USA
    J Parasitol 87:223-5. 2001
    ....
  26. ncbi request reprint Effects of the anthelmintics clorsulon, rafoxanide, mebendazole and arprinocid on Echinostoma caproni in ICR mice
    K Maurer
    Department of Biology, Lafayette College, Easton, Pennsylvania 18042, USA
    J Helminthol 70:95-6. 1996
    ..Mebendazole and arprinocid were ineffective in eliminating worms at 1 or 2 days post drug administration...
  27. ncbi request reprint Experimental infection of Rana pipiens tadpoles with Echinostoma trivolvis cercariae
    B Fried
    Department of Biology, Lafayette College, Easton, PA 18042, USA
    Parasitol Res 83:666-9. 1997
    ..The E. trivolvis-R pipiens tadpole model is suitable for the study of host-parasite relationships of echinostome larvae in a cold-blooded vertebrate host...
  28. doi request reprint Excystation of the encysted metacercariae of Echinostoma trivolvis and Echinostoma caproni in a trypsin-bile salts-cysteine medium and morphometric analysis of the excysted larvae
    Tyler M Saxton
    Department of Biology, Lafayette College, Easton, Pennsylvania 18042, USA
    J Parasitol 94:669-71. 2008
    ..caproni were significantly larger than those of E. trivolvis. Morphometric analysis can be used to distinguish structural differences in closely related allopatric species of Echinostoma...
  29. ncbi request reprint Effects on the neutral lipid contents of the liver, ileum and serum during experimental schistosomiasis
    E Muller
    Department of Chemistry, Lafayette College, Easton, PA 18042, USA
    Int J Parasitol 31:285-7. 2001
    ..We found that triacylglycerol and cholesteryl ester levels decreased significantly as infection progressed...
  30. ncbi request reprint Chemoattraction and penetration of Echinostoma trivolvis and E. caproni cercariae in the presence of Biomphalaria glabrata, Helisoma trivolvis, and Lymnaea elodes dialysate
    B Fried
    Department of Biology, Lafayette College, Easton, PA 18042, USA
    Parasitol Res 83:193-7. 1997
    ..When these extracts were placed on agar plugs in the bioassay, the lipophilic fraction, but not the hydrophilic fraction, was mainly chemoattractive...
  31. ncbi request reprint Effects of a diet deficient in the B complex vitamins on infectivity, growth and distribution of Echinostoma caproni in ICR mice
    H L Simpkins
    Department of Biology, Lafayette College, Easton, Pennsylvania 18042, USA
    J Helminthol 75:77-80. 2001
    ..i. than that of worms on the control diet. An isocaloric diet deficient in the B vitamins had a detrimental effect on the growth of E. caproni in ICR mice...
  32. ncbi request reprint Effects of snail size on encystment of Echinostoma caproni in juvenile Biomphalaria glabrata (NMRI strain) and observations on the survival of infected snails
    J L Schneck
    Department of Biology, Lafayette College, Easton, PA 18042, USA
    J Helminthol 78:277-9. 2004
    ..Snail size was a factor in mortality associated with echinostome cercarial penetration and encystment...
  33. ncbi request reprint Observations on Echinostoma revolutum and Echinostoma trivolvis in single and concurrent infections in domestic chicks
    B Fried
    Department of Biology, Lafayette College, Easton, PA 18042, USA
    Int J Parasitol 27:1319-22. 1997
    ..revolutum and E. trivolvis, the findings reported here show that body area and organ size can be used to distinguish these closely related species...
  34. ncbi request reprint Effects of Schistosoma mansoni infection on inorganic elements in the snail Biomphalaria glabrata
    J H L Ong
    Department of Chemistry, Lafayette College, Easton, PA 18042, USA
    J Helminthol 78:343-6. 2004
    ..05) in whole infected versus whole uninfected snails. Variations in the present results compared with other studies reflect intrinsic differences in the larval trematode-snail systems used...
  35. ncbi request reprint Maintenance of the life cycle of Echinostoma trivolvis (Trematoda) in dexamethasone-treated ICR mice and laboratory-raised Helisoma trivolvis (Gastropoda)
    B Fried
    Department of Biology, Lafayette College, Easton, PA 18042, USA
    Parasitol Res 83:16-9. 1997
    ..i. Cercariae encysted in the kidney-pericardium of the snails. Encysted metacercariae could be excysted in vitro in an alkaline trypsin-bile salts medium or in vivo when fed to domestic chicks...
  36. doi request reprint Chapter 1. The biology of the caecal trematode Zygocotyle lunata
    Bernard Fried
    Department of Biology, Lafayette College, Easton, PA 18042, USA
    Adv Parasitol 69:1-40. 2009
    ..Published information on the molecular biology of this organism does not exist. The organism is in need of new research efforts at all levels of organization from the molecular to the community...
  37. doi request reprint Excystation of the metacercarial cysts of Echinostoma caproni in a frozen and thawed trypsin-bile salts-cysteine medium
    Tyler M Saxton
    Department of Biology, Lafayette College, Kunkel Hall 204, Easton, PA 18042, USA
    Parasitol Res 102:809-10. 2008
  38. ncbi request reprint Evidence of altered secondary lymphoid-tissue chemokine responsiveness in Balb/c mice infected with Schistosoma mansoni
    Robert A Kurt
    Department of Biology, Lafayette College, Easton, Pennsylvania 18042, USA
    J Parasitol 89:721-5. 2003
    ..Collectively, these data indicate that Balb/c mice with 7-wk S. mansoni infection possess splenic T cells with altered chemotactic activity and that the alterations may be a consequence of the granulomatous response in the liver...
  39. doi request reprint Encystment and excystment of the paramphistomid trematode Zygocotyle lunata
    K E Lesage
    Department of Biology, Lafayette College, Easton, PA 18042, USA
    J Helminthol 85:300-3. 2011
    ..Since Z. lunata is a potential foodborne trematode for humans and animals, it is important to determine suitable ways to control or kill these cysts...
  40. ncbi request reprint Histochemical glycogen and neutral lipid in Echinostoma trivolvis cercariae and effects of exogenous glucose on cercarial longevity
    B Fried
    Department of Biology, Lafayette College, Easton, Pennsylvania 18042, USA
    J Helminthol 72:83-5. 1998
    ..Nevertheless, cercariae survived longer in 1% glucose than in either 0.0, 0.1 or 0.5% glucose; but only at 23 h were any differences statistically greater (one way ANOVA, P < 0.05)...
  41. ncbi request reprint Effects of glucose on survival, infectivity and linear movement of the cercariae of Echinostoma caproni
    E L Ponder
    Department of Biology, Lafayette College, Easton, PA 18042, USA
    J Helminthol 78:185-7. 2004
    ..Glucose added to ASW extended the survival time of E. caproni cercariae but decreased their ability to infect snails or move in a linear direction...
  42. ncbi request reprint Comparative studies on excystation and morphological features of the metacercariae of Echinostoma paraensei and E. caproni
    B Fried
    Department of Biology, Lafayette College, Easton, PA 18042, USA
    Int J Parasitol 27:899-901. 1997
    ..In conclusion, in vitro excystation data and morphometric light microscopic studies were useful in determining specific differences in the metacercariae of these 2 closely related allopatric species of 37-collar-spined Echinostoma...
  43. ncbi request reprint Effects of a 100 metacercarial cyst inoculum on the host-parasite relationship of Echinostoma caproni and ICR mice
    C D Balfour
    Department of Biology, Lafayette College, Easton, Pennsylvania 18042, USA
    J Helminthol 75:321-4. 2001
    ..Worms from group C were more widely distributed in the small intestine than those from group B. Crowding effects associated with the high dose infection were clearly demonstrated in E. caproni from ICR mice...
  44. ncbi request reprint Biology of echinostomes except Echinostoma
    B Fried
    Department of Biology, Lafayette College, Easton, Pennsylvania 18042, USA
    Adv Parasitol 49:163-210. 2001
    ....
  45. ncbi request reprint High performance thin layer chromatographic analysis of neutral lipids in the urine of BALB/c mice infected with Echinostoma caproni
    James D Vasta
    Department of Chemistry, Lafayette College, Easton, PA, USA
    Parasitol Res 102:625-9. 2008
    ..05) in the methyl oleate fraction at 6 and 7 weeks PI relative to the uninfected controls. Neutral lipid profiles of urine may serve as an indicator of experimental infection of echinostomes in mice...
  46. ncbi request reprint High-performance thin-layer chromatographic analysis of neutral lipids and phospholipids in Biomphalaria glabrata patently infected with Echinostoma caproni
    Sharon R Bandstra
    Department of Chemistry, Lafayette College, Easton, PA 18042, USA
    Parasitol Res 99:414-8. 2006
    ..No qualitative differences in neutral lipids and phospholipids in shell or plasma samples were found between infected vs uninfected snails...
  47. ncbi request reprint Thin layer chromatographic analysis of glucose and maltose in estivated Biomphalaria glabrata snails and those infected with Schistosoma mansoni
    Jamie A Jarusiewicz
    Department of Chemistry, Lafayette College, Easton, PA 18042, USA
    Comp Biochem Physiol B Biochem Mol Biol 145:346-9. 2006
    ..The concentrations of glucose and maltose were significantly reduced in both uninfected-estivated snails and infected-estivated snails...
  48. ncbi request reprint Effects of copper sulfate toxicity on cercariae and metacercariae of Echinostoma caproni and Echinostoma trivolvis and on the survival of Biomphalaria glabrata snails
    Aditya Reddy
    Department of Biology, Lafayette College, Easton, Pennsylvania 18042, USA
    J Parasitol 90:1332-7. 2004
    ..glabratta snails are also sufficient to kill the cercariae and excysted metacercariae of these digeneans but not the encysted metacercariae, which may be protected by their cyst walls...
  49. doi request reprint The effects of various chemical and physical factors on encystment and excystment of Zygocotyle lunata
    Robert C Peoples
    Department of Biology, Lafayette College, Easton, PA 18042, USA
    Parasitol Res 103:899-904. 2008
    ..The phenomenon of spontaneous excystation in Z. lunata after in vitro encystment in a hypertonic medium appears to be reported for the first time in digeneans...
  50. ncbi request reprint Effects of Euhaplorchis californiensis (Trematoda) infection on metallic ions in the host snail Cerithidea californica (Gastropoda)
    Seth W Kaufer
    Department of Chemistry, Lafayette College, Easton, PA 18042, USA
    Parasitol Res 88:1080-2. 2002
    ..Variations in the results of the two studies reflect intrinsic differences in the larval trematode-snail systems used...
  51. doi request reprint Infectivity, development, and growth of Zygocotyle lunata (Trematoda) in Balb/c mice
    Karen E LeSage
    Department of Biology, Lafayette College, 204 Kunkel Hall, Easton, Pennsylvania 18042, USA
    J Parasitol 96:663-5. 2010
    ..Eggs were fully developed by 3 wk post-incubation and miracidia hatched in the ASW. Laboratory-reared H. trivolvis snails were not available to attempt miracidia infections with Z. lunata ...
  52. doi request reprint Effects of Echinostoma caproni infection on the neutral and polar lipids of intestinal and non-intestinal organs in the BALB/c mouse as determined by high-performance thin-layer chromatography
    Jessica Counihan
    Department of Chemistry, Lafayette College, Easton, PA 18042, USA
    Parasitol Res 107:947-53. 2010
    ..05), with about twice the amount of PE in mice infected with E. caproni relative to the uninfected mice. No significant differences in any of the neutral lipid classes were found between infected and uninfected samples...
  53. doi request reprint Effects of prolonged worm storage on the viability of Echinostoma caproni eggs
    Robert C Peoples
    Department of Biology, Lafayette College, Easton, PA 18042, USA
    Parasitol Res 104:471-3. 2009
    ..Beyond these times, there was a marked decline in egg viability. We suggest that WCs should not be stored for longer than 4 months in Locke's 1:1 at 4 degrees C to obtain optimal embryonation and hatching of E. caproni...
  54. doi request reprint Studies on collar spines of echinostomatid trematodes
    Bernard Fried
    Department of Biology, Lafayette College, Easton, PA 18042, USA
    Parasitol Res 105:605-8. 2009
    ..The limited information on specific histochemical studies on these spines is also reviewed. Lastly, an examination of the few papers that have considered structure and function of collar spines is given...
  55. ncbi request reprint High performance column liquid chromatographic analysis of selected carboxylic acids in Biomphalaria glabrata patently infected with Schistosoma mansoni
    Daniel R Massa
    Department of Chemistry, Lafayette College, Easton, PA 18042, USA
    Parasitol Res 101:925-8. 2007
    ..glabrata patently infected with S. mansoni suggests that these acids are utilized by the sporocysts and cercariae in the snail tissue, or that the infection stimulates reduced production or increased utilization by the snail tissue...
  56. ncbi request reprint Effects of aestivation and starvation on the neutral lipid and phospholipid content of Biomphalaria glabrata infected with Schistosoma mansoni
    Meredith M White
    Department of Chemistry, Lafayette College, Easton, Pennsylvania 18042, USA
    J Parasitol 93:1-3. 2007
    ..007) compared with the controls but not when compared with the infected-starved snails. Aestivation or starvation had a significant effect on the concentration of certain lipid classes in the DGG of B. glabrata infected with S. mansoni...
  57. ncbi request reprint Effects of diet and larval trematode parasitism on lutein and beta-carotene concentrations in planorbid snails as determined by quantitative high performance reversed phase thin layer chromatography
    Ryan T Evans
    Department of Chemistry, Lafayette College, Easton, PA 18042, USA
    Comp Biochem Physiol B Biochem Mol Biol 137:179-86. 2004
    ..Variations in the results of our study compared with others reflect intrinsic differences in the larval trematode-snail systems used...
  58. ncbi request reprint Effects of tonicity on the release of neutral lipids in Echinostoma caproni adults and observations on lipids in excysted metacercariae
    Jessica L Schneck
    Department of Chemistry, Lafayette College, Easton, PA 18042, USA
    Parasitol Res 92:285-8. 2004
    ..trivolvis. Variations in the results of our study compared with others reflect intrinsic differences in the species of echinostome used...
  59. ncbi request reprint Effects of snail size and diet on encystment of Echinostoma caproni cercariae in juvenile Helisoma trivolvis (Colorado strain) and observations on survival of infected snails
    Elizabeth L Ponder
    Department of Biology, Lafayette College, Easton, Pennsylvania 18042, USA
    J Parasitol 90:422-4. 2004
    ..Survival of infected versus uninfected neonatals was also examined for 7 days. Neonatals exposed to 10 cercariae showed a significant decrease in survival at 6 and 7 days PI when compared with uninfected controls...
  60. ncbi request reprint Free-pool amino acids in Biomphalaria glabrata infected with Echinostoma caproni as determined by thin-layer chromatography
    Elizabeth L Ponder
    Department of Chemistry, Lafayette College, Easton, Pennsylvania 18042, USA
    J Parasitol 90:665-6. 2004
    ..00504 +/- 0.0014 and 0.00254 +/- 0.00033, respectively, in the DGG of infected snails. The differences in values between infected and uninfected snails were not statistically significant (Student's t-test, P > 0.05)...
  61. ncbi request reprint Recent advances in the biology of Echinostoma species in the "revolutum" group
    Bernard Fried
    Department of Biology, Lafayette College, Easton, PA 18042, USA
    Adv Parasitol 58:139-95. 2004
    ..The review includes a list of researchers and their addresses who currently maintain such life cycles...
  62. doi request reprint Atopic disorders and parasitic infections
    Aditya Reddy
    Department of Biology, Lafayette College, Easton, Pennsylvania 18042, USA
    Adv Parasitol 66:149-91. 2008
    ..Some helminthic substances, especially the cytokines, have respiratory and anti-allergic effects, and may therefore become useful as therapeutic modalities for many atopic and allergic disorders...
  63. ncbi request reprint Effects of various larval digeneans on the calcium carbonate content of the shells of Helisoma trivolvis, Biomphalaria glabrata, and Physa sp
    Meredith M White
    Department of Chemistry, Lafayette College, Easton, PA 18042, USA
    Parasitol Res 95:252-5. 2005
    ..glabrata. The hypercalcification hypothesis, i.e., larval trematodes induce an increase in the calcium concentrations in the shells of their snail hosts, was not upheld in any of the snail-larval digenean systems studied herein...
  64. ncbi request reprint Effects of hypotonicity on amino acid release in adult Echinostoma caproni as determined by thin layer chromatography
    Elizabeth L Ponder
    Department of Chemistry, Lafayette College, Easton, PA 18042, USA
    Parasitol Res 89:242-4. 2003
    ..0229 and 0.0163, respectively, for worms incubated in DI water. Our findings suggest that E. caproni adults may leak amino acids for osmoregulation in hypotonic environments...
  65. ncbi request reprint Effects of diet on the carotenoid pigment and lipid content of Pomacea bridgesii as determined by quantitative high performance thin layer chromatography
    Jamie A Jarusiewicz
    Department of Chemistry, Lafayette College, Easton, PA 18042, USA
    Comp Biochem Physiol B Biochem Mol Biol 143:244-8. 2006
    ..Neutral and polar lipid levels were also quantified in P. bridgesii fed lettuce and yolk. Significantly higher amounts of triacylglycerols were detected in the digestive gland-gonad complexes of snails maintained on the egg yolk diet...
  66. ncbi request reprint The comparative development of Echinostoma caproni (Trematoda: Echinostomatidae) adults in experimentally infected hamsters and rats
    Rafael Toledo
    Departamento de Parasitologia, Facultad de Farmacia, Universidad de Valencia, Av Vicente Andrés Estellés s n, 46100, Burjassot Valencia, Spain
    Parasitol Res 93:439-44. 2004
    ..Moreover, significant worm age-host species interactions were found for body area, ovarian area, ventral sucker area, and anterior and posterior testicular areas...
  67. ncbi request reprint Enhanced malaria parasite transmission from helminth co-infected mice
    Gregory S Noland
    Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland 21205, USA
    Am J Trop Med Hyg 76:1052-6. 2007
    ..Malaria parasite prevalence and anemia were similar between co-infected and malaria only-infected mice, which suggested that enhanced malaria parasite transmission was due to helminth-induced modulation of host responses...
  68. ncbi request reprint Echinostomes as experimental models for interactions between adult parasites and vertebrate hosts
    Rafael Toledo
    Departamento de Parasitologia, Facultad de Farmacia, Universidad de Valencia, Avenida Vicente Andrés Estellés, 46100 Burjassot, Valencia, Spain
    Trends Parasitol 21:251-4. 2005
    ....
  69. ncbi request reprint Hemozoin formation in Echinostoma trivolvis rediae
    John M Pisciotta
    The Malaria Research Institute, Bloomberg School of Public Health, Johns Hopkins University, 615 North Wolfe Street, Baltimore, MD 21205, USA
    Int J Parasitol 35:1037-42. 2005
    ..These observations are consistent with heme crystal formation by a hematophagous parasite within a non-vertebrate intermediate host...
  70. pmc Counter-regulatory anti-parasite cytokine responses during concurrent Plasmodium yoelii and intestinal helminth infections in mice
    Gregory S Noland
    Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, 615 N Wolfe Street, Baltimore, MD 21205, USA
    Exp Parasitol 119:272-8. 2008
    ..polygyrus=high), but not IL-10. Concurrent malaria infection also suppressed helminth-associated IL-4 responses, indicating that immunologic counter-regulation occurs during co-infection with malaria and intestinal helminths...
  71. ncbi request reprint The use of echinostomes to study host-parasite relationships between larval trematodes and invertebrate and cold-blooded vertebrate hosts
    Rafael Toledo
    Departamento de Parasitologia, Facultad de Farmacia, Universidad de Valencia, Av Vicente Andrés Estellés s n, 46100 Burjassot, Valencia, Spain
    Parasitol Res 100:1177-85. 2007
    ....
  72. ncbi request reprint Human waterborne trematode and protozoan infections
    Thaddeus K Graczyk
    Division of Environmental Health Engineering, Department of Environmental Health Sciences, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD 21205, USA
    Adv Parasitol 64:111-60. 2007
    ..g., Cryptosporidium oocysts) able to resist standard disinfection applied to drinking water...
  73. ncbi request reprint Echinostoma caproni: kinetics of IgM, IgA and IgG subclasses in the serum and intestine of experimentally infected rats and mice
    Javier Sotillo
    Departamento de Parasitologia, Facultad de Farmacia, Universidad de Valencia, Av Vicente Andrés Estellés s n, 46100 Burjassot Valencia, Spain
    Exp Parasitol 116:390-8. 2007
    ..In contrast, the worm expulsion appears to be related to increases in local IgG2a levels...
  74. ncbi request reprint Differential infectivity of Transversotrema patialense for naive fish
    Frida Ben-Ami
    Department of Evolution, Systematics, and Ecology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
    J Parasitol 91:949-50. 2005
    ..Taken together, these results suggest that imported T. patialense may spread to various indigenous natural and cultured fish populations, with ensuing potential harm to these populations...
  75. ncbi request reprint Exacerbation of Plasmodium yoelii malaria in Echinostoma caproni infected mice and abatement through anthelmintic treatment
    Gregory S Noland
    Johns Hopkins Malaria Research Institute, Department of Molecular Microbiology and Immunology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland 21205, USA
    J Parasitol 91:944-8. 2005
    ....
  76. pmc Trematocidal activity of praziquantel and artemisinin derivatives: in vitro and in vivo investigations with adult Echinostoma caproni
    Jennifer Keiser
    Swiss Tropical Institute, P O Box, CH 4002 Basel, Switzerland
    Antimicrob Agents Chemother 50:803-5. 2006
    ..In vivo, worm burden reductions of 100% were achieved with single oral doses of praziquantel, artesunate, and artemether at 50, 700, and 1,100 mg/kg of body weight, respectively...
  77. ncbi request reprint Echinostoma caproni: intestinal pathology in the golden hamster, a highly compatible host, and the Wistar rat, a less compatible host
    Rafael Toledo
    Departamento de Parasitologia, Facultad de Farmacia, Universidad de Valencia, Av Vicente Andrés Estellés s n, 46100 Burjassot Valencia, Spain
    Exp Parasitol 112:164-71. 2006
    ..Our results indicate the fact that early inflammatory responses could be important for the establishment of E. caproni chronic infections in highly compatible hosts...
  78. ncbi request reprint Development of an antibody-based capture enzyme-linked immunosorbent assay for detecting Echinostoma caproni (Trematoda) in experimentally infected rats: kinetics of coproantigen excretion
    Rafael Toledo
    Departamento de Parasitologia, Facultad de Farmacia, Universidad de Valencia, Av Vicente Andrés Estellés s n, 46100 Burjassot, Valencia, Spain
    J Parasitol 89:1227-31. 2003
    ..Our results show that this assay can also be used to monitor the course of echinostome infections...
  79. ncbi request reprint Immunology and pathology of intestinal trematodes in their definitive hosts
    Rafael Toledo
    Departamento de Parasitologia, Facultad de Farmacia, Universidad de Valencia, Av Vicente Andrés Estellés s n, 46100 Burjassot Valencia, Spain
    Adv Parasitol 63:285-365. 2006
    ..Following this coverage, we include a final section on the important topical literature on selected trematodes in families other than the six mentioned above...
  80. doi request reprint Identification problems with species in the Echinoparyphium recurvatum complex from physid snails in the USA
    Ivan Kanev
    H W Manter Laboratory of Parasitology, University of Nebraska, W 529 Nebraska Hall, Lincoln, NE 68588, USA
    Parasitol Res 103:963-5. 2008
    ..We suggest that these echinostomes be considered as species in the Echinoparyphium recurvatum complex, until further morphological and molecular studies be done on this group...
  81. ncbi request reprint The musculature and associated innervation of adult and intramolluscan stages of Echinostoma caproni (Trematoda) visualised by confocal microscopy
    Sarka Sebelova
    Parasitology Research Group, School of Biology and Biochemistry, Medical Biology Centre, Queen s University Belfast, Belfast, BT9 7BL, UK
    Parasitol Res 93:196-206. 2004
    ..Comparison of the present findings with those recorded for other digeneans suggests that muscle organisation and innervation patterns in trematodes are highly conserved...
  82. ncbi request reprint Association of bacteria with metacercarial cysts of Echinostoma caproni
    Shamus P Keeler
    Fish and Wildlife Microbiology Laboratory, Department of Biological Sciences, East Stroudsburg University, 200 Prospect St, East Stroudsburg, PA 18301, USA
    Parasitol Res 101:1131-3. 2007
    ..Accumulation of these bacteria on the surface of encysted metacercariae probably contributed to a decreased cyst viability of E. caproni...
  83. ncbi request reprint Kinetics of Echinostoma caproni (Trematoda: Echinostomatidae) antigens in feces and serum of experimentally infected hamsters and rats
    Rafael Toledo
    Departamento de Parasitologia, Facultad de Farmacia, Universidad de Valencia, Av Vicente Andrés Estellés s n, 46100 Burjassot Valencia, Spain
    J Parasitol 90:752-8. 2004
    ..In contrast, low levels of E. caproni seroantigens were detected in rats only. These observations may reflect the differences in local inflammatory responses induced by E. caproni in each host species...