H Mehlhorn

Summary

Affiliation: Heinrich Heine University
Country: Germany

Publications

  1. doi request reprint Effects of permethrin (Flypor) and fenvalerate (Acadrex60, Arkofly) on Culicoides species-the vector of Bluetongue virus
    Gunter Schmahl
    Institute of Zoomorphology, Cytology and Parasitology, Heinrich Heine University, 40225 Dusseldorf, Germany
    Parasitol Res 104:815-20. 2009
  2. ncbi request reprint Electron microscopic investigations on stages of dog piroplasms cultured in vitro: Asian isolates of Babesia gibsoni and strains of B. canis from France and Hungary
    Susanne Walter
    Institut für Zoomorphologie, Zellbiologie und Parasitologie, Heinrich Heine Universitat, Dusseldorf, Germany
    Parasitol Res 88:32-7. 2002
  3. ncbi request reprint [Humanopathogenic parasites--an unwelcome import]
    H Mehlhorn
    Institut für Parasitologie, Heinrich Heine Universitat, Dusseldorf
    MMW Fortschr Med 146:23-4, 26-8. 2004
  4. ncbi request reprint Extract of the seeds of the plant Vitex agnus castus proven to be highly efficacious as a repellent against ticks, fleas, mosquitoes and biting flies
    Heinz Mehlhorn
    Department of Cytology, Zoomorphology and Parasitology, Heinrich Heine University, Dusseldorf, Germany
    Parasitol Res 95:363-5. 2005
  5. ncbi request reprint First occurrence of Culicoides obsoletus-transmitted Bluetongue virus epidemic in Central Europe
    Heinz Mehlhorn
    Institut für Zoologie und Parasitologie, Heinrich Heine Universitat, Universitatsstr 1, 40225 Dusseldorf, Germany
    Parasitol Res 101:219-28. 2007
  6. doi request reprint The effects of flumethrin (Bayticol® pour-on) on European ticks exposed to treated hairs of cattle and sheep
    Heinz Mehlhorn
    Department of Parasitology, Heinrich Heine University Dusseldorf, Dusseldorf, Germany
    Parasitol Res 110:2181-6. 2012
  7. doi request reprint Biting and bloodsucking lice of dogs--treatment by means of a neem seed extract (MiteStop®, Wash Away Dog)
    Heinz Mehlhorn
    Department of Parasitology, Heinrich Heine University Dusseldorf, Dusseldorf, Germany
    Parasitol Res 110:769-73. 2012
  8. doi request reprint Ovicidal effects of a neem seed extract preparation on eggs of body and head lice
    Heinz Mehlhorn
    Department Zoology and Parasitology, Heinrich Heine University, 40225, Dusseldorf, Germany
    Parasitol Res 109:1299-302. 2011
  9. ncbi request reprint Electron microscopic study of in vitro cultures of Hammondia heydorni (Berlin 1996) tachyzoites after passages through dogs, mice, rats, guinea pigs and jirds
    H Mehlhorn
    Department of Parasitology, Heinrich Heine University, 40225 Dusseldorf, Germany
    Parasitol Res 90:512-20. 2003
  10. doi request reprint Butox 7.5 pour on: a deltamethrin treatment of sheep and cattle: pilot study of killing effects on Culicoides species (Ceratopogonidae)
    Heinz Mehlhorn
    Institut für Zoomorphologie, Cytologie und Parasitologie, Heinrich Heine Universitat, 40225 Dusseldorf, Germany
    Parasitol Res 102:515-8. 2008

Collaborators

Detail Information

Publications74

  1. doi request reprint Effects of permethrin (Flypor) and fenvalerate (Acadrex60, Arkofly) on Culicoides species-the vector of Bluetongue virus
    Gunter Schmahl
    Institute of Zoomorphology, Cytology and Parasitology, Heinrich Heine University, 40225 Dusseldorf, Germany
    Parasitol Res 104:815-20. 2009
    ..This test was needed to make sure that the products do reach the feet and belly of the animals in sufficient amounts, since this region is the predominant biting site of the Culicoides midges...
  2. ncbi request reprint Electron microscopic investigations on stages of dog piroplasms cultured in vitro: Asian isolates of Babesia gibsoni and strains of B. canis from France and Hungary
    Susanne Walter
    Institut für Zoomorphologie, Zellbiologie und Parasitologie, Heinrich Heine Universitat, Dusseldorf, Germany
    Parasitol Res 88:32-7. 2002
    ..canis cultured in vitro. While the developmental stages of the latter preserved their shape in culture, many of the initially small stages of the B. gibsoni strains grew considerably and often looked rather similar to B. canis...
  3. ncbi request reprint [Humanopathogenic parasites--an unwelcome import]
    H Mehlhorn
    Institut für Parasitologie, Heinrich Heine Universitat, Dusseldorf
    MMW Fortschr Med 146:23-4, 26-8. 2004
    ..They can give rise to protracted diseases such as hepatitis B, cutaneous or intestinal disorders. The most effective preventive measure is exposure prophylaxis...
  4. ncbi request reprint Extract of the seeds of the plant Vitex agnus castus proven to be highly efficacious as a repellent against ticks, fleas, mosquitoes and biting flies
    Heinz Mehlhorn
    Department of Cytology, Zoomorphology and Parasitology, Heinrich Heine University, Dusseldorf, Germany
    Parasitol Res 95:363-5. 2005
    ..In addition mosquitoes, biting flies and fleas are also repelled for about 6 h...
  5. ncbi request reprint First occurrence of Culicoides obsoletus-transmitted Bluetongue virus epidemic in Central Europe
    Heinz Mehlhorn
    Institut für Zoologie und Parasitologie, Heinrich Heine Universitat, Universitatsstr 1, 40225 Dusseldorf, Germany
    Parasitol Res 101:219-28. 2007
    ..obsoletus complex. Since they were captured still at the 21st of December close to cattle with clinical signs, it must be feared that BTV-8 is now established in Central Europe, where it had been absent until now...
  6. doi request reprint The effects of flumethrin (Bayticol® pour-on) on European ticks exposed to treated hairs of cattle and sheep
    Heinz Mehlhorn
    Department of Parasitology, Heinrich Heine University Dusseldorf, Dusseldorf, Germany
    Parasitol Res 110:2181-6. 2012
    ..If ticks were mingled with treated hair, they tried to flee away and did not seek shelter inside the hair as the controls did in untreated hair...
  7. doi request reprint Biting and bloodsucking lice of dogs--treatment by means of a neem seed extract (MiteStop®, Wash Away Dog)
    Heinz Mehlhorn
    Department of Parasitology, Heinrich Heine University Dusseldorf, Dusseldorf, Germany
    Parasitol Res 110:769-73. 2012
    ..In both cases the product had been left for 20 min onto the hair before it was washed away just with normal tap water...
  8. doi request reprint Ovicidal effects of a neem seed extract preparation on eggs of body and head lice
    Heinz Mehlhorn
    Department Zoology and Parasitology, Heinrich Heine University, 40225, Dusseldorf, Germany
    Parasitol Res 109:1299-302. 2011
    ..Thus, this product offers a complete cure from head lice upon a single treatment, if the lice (motile stages, eggs) are fully covered for about 10 min...
  9. ncbi request reprint Electron microscopic study of in vitro cultures of Hammondia heydorni (Berlin 1996) tachyzoites after passages through dogs, mice, rats, guinea pigs and jirds
    H Mehlhorn
    Department of Parasitology, Heinrich Heine University, 40225 Dusseldorf, Germany
    Parasitol Res 90:512-20. 2003
    ..This fact conforms with other already published data and underlines our opinion that the recently redescribed N. caninum Dubey et al. 2002 is a synonym of the previously described H. heydorni (Tadros and Laarman 1976) Dubey 1977...
  10. doi request reprint Butox 7.5 pour on: a deltamethrin treatment of sheep and cattle: pilot study of killing effects on Culicoides species (Ceratopogonidae)
    Heinz Mehlhorn
    Institut für Zoomorphologie, Cytologie und Parasitologie, Heinrich Heine Universitat, 40225 Dusseldorf, Germany
    Parasitol Res 102:515-8. 2008
    ..Such a treatment may considerably reduce the risk of transmission of the agents of disease. However, in the case of the thick fleece of sheep, the insecticide must be poured directly into the skin to reach full activity...
  11. ncbi request reprint Efficacy of a combination of imidacloprid and moxidectin against parasites of reptiles and rodents: case reports
    H Mehlhorn
    Department of Zoomorphology, Cytology and Parasitology, Heinrich Heine University, Dusseldorf, Germany
    Parasitol Res 97:S97-101. 2005
    ..Infections with nematodes were successfully treated with a single application. Mite infestations in reptiles were eliminated using a treatment repeated on 3 consecutive days...
  12. ncbi request reprint Effects of a combinations of emodepside and praziquantel on parasites of reptiles and rodents
    H Mehlhorn
    Department of Zoomorphology, Cytology and Parasitology, Heinrich Heine University, Dusseldorf, Germany
    Parasitol Res 97:S65-9. 2005
    ..In animals with an extremely thick epidermis (e.g. monitor lizards, leguans) the new product was applied under the armpits...
  13. ncbi request reprint Field trial of the efficacy of a combination of imidacloprid and permethrin against Tunga penetrans (sand flea, jigger flea) in dogs in Brazil
    S Klimpel
    Institute of Zoomorphology, Cell Biology and Parasitology, Heinrich Heine University, Dusseldorf, Germany
    Parasitol Res 97:S113-9. 2005
    ..Since the dogs distribute the flea eggs throughout the village, leading to a high incidence of tungiasis in humans, treatment of dogs probably also decreases the number of cases of tungiasis in the latter...
  14. ncbi request reprint Experimental quantification of the feline leukaemia virus in the cat flea (Ctenocephalides felis) and its faeces
    M Vobis
    Institute for Zoomorphoiogy, Cell Biology and Parasitology, Heinrich Heine University, Dusseldorf, Germany
    Parasitol Res 97:S102-6. 2005
    ..Thus the faeces might be a source of further infections, e.g. for the flea larvae or the cat itself...
  15. doi request reprint Effects of Bayofly on specimens of Culicoides species when incubated in hair taken from the feet of previously treated cattle and sheep
    Heinz Mehlhorn
    Institute for Zoomorphology, Cytology and Parasitology, Heinrich Heine University, 40225 Dusseldorf, Germany
    Parasitol Res 102:519-22. 2008
    ..It was found that the insecticide on hair from the legs--the predominant biting site of midges--had a significant killing effect on Culicoides for 3-4 weeks, even after a short-term contact...
  16. doi request reprint Outbreak of bluetongue disease (BTD) in Germany and the danger for Europe
    Heinz Mehlhorn
    Institute of Zoomorphology, Cell Biology and Parasitology, Heinrich Heine University, 40225, Dusseldorf, Germany
    Parasitol Res 103:S79-86. 2008
    ..Effects of global warming-of course-will support persistence of such outbreaks of diseases due to offering of spreading of imported viruses, bacteria and/or parasites...
  17. ncbi request reprint Effects of imidacloprid on adult and larval stages of the flea Ctenocephalides felis after in vivo and in vitro application: a light- and electron-microscopy study
    H Mehlhorn
    Institut fur Zellbiologie, Zoomorphologie und Parasitologie, Heinrich Heine Universitat Dusseldorf, Germany
    Parasitol Res 85:625-37. 1999
    ..In summary, these studies show that imidacloprid kills larval and adult flea stages rapidly via the same mode of action and thus prevents the development of flea populations in human or animal dwellings...
  18. doi request reprint Bluetongue disease in Germany (2007-2008): monitoring of entomological aspects
    Heinz Mehlhorn
    Department of Parasitology, Heinrich Heine University, Dusseldorf, 40225, Germany
    Parasitol Res 105:313-9. 2009
    ..2009; Bauer et al. 2009; Stephan et al. 2009; Clausen et al. 2009; Hörbrand and Geier 2009; Kiehl et al. 2009; Mehlhorn et al. 2009; Kiel et al. 2009; Vorsprach et al. 2009; Balczun et al. 2009...
  19. doi request reprint Addition of a combination of onion (Allium cepa) and coconut (Cocos nucifera) to food of sheep stops gastrointestinal helminthic infections
    Heinz Mehlhorn
    Department of Zoology and Parasitology, Heinrich Heine University Dusseldorf, 40225, Dusseldorf, Germany
    Parasitol Res 108:1041-6. 2011
    ..Parasitol Res, in press, 2010; Abdel-Ghaffar et al., Parasitol Res, in press, 2010; in this volume)...
  20. doi request reprint Efficacy of deltamethrin (Butox® 7.5 pour on) against nymphs and adults of ticks (Ixodes ricinus, Rhipicephalus sanguineus) in treated hair of cattle and sheep
    Heinz Mehlhorn
    Department of Parasitology, Heinrich Heine University, 40225, Dusseldorf, Germany
    Parasitol Res 108:963-71. 2011
    ..As conclusion, deltamethrin, besides its very good effects against biting insects, brings acaricidal as well as repellent effects against ticks, thus protecting the sheep and cattle from transmission of agents of diseases...
  21. doi request reprint Life cycle and attacks of ectoparasites on ruminants during the year in Central Europe: recommendations for treatment with insecticides (e.g., Butox)
    Heinz Mehlhorn
    Department of Zoology, Heinrich Heine University, 40225, Dusseldorf, Germany
    Parasitol Res 107:425-31. 2010
    ..Considering the places for overwintering, proposals were made when insecticidal products such as Butox pour-on should be used in order to obtain good rearing results...
  22. doi request reprint Fine structure of the bird parasites Trichomonas gallinae and Tetratrichomonas gallinarum from cultures
    Heinz Mehlhorn
    Institute of Zoomorphology, Cytology, and Parasitology, Heinrich Heine University, 40225, Dusseldorf, Germany
    Parasitol Res 105:751-6. 2009
    ..Furthermore, the food vacuoles appeared very large. However, both species clearly differed from the trophozoites of Histomonas meleagridis...
  23. doi request reprint Entomological survey on vectors of Bluetongue virus in Northrhine-Westfalia (Germany) during 2007 and 2008
    Heinz Mehlhorn
    Department of Parasitology, Heinrich Heine University, 40225, Dusseldorf, Germany
    Parasitol Res 105:321-9. 2009
    ..This conclusion needs urgently special attention on other luring epidemics in the near future...
  24. ncbi request reprint Light and scanning electron microscopical study on Antarctophthirus ogmorhini lice from the Antarctic seal Leptonychotes weddellii
    Birgit Mehlhorn
    Institut für Zoomorphologie, Zellbiologie und Parasitologie, Heinrich Heine Universitat, 40225 Dusseldorf, Germany
    Parasitol Res 88:651-60. 2002
    ....
  25. doi request reprint Another African disease in Central Europa: Besnoitiosis of cattle. I. Light and electron microscopical study
    Heinz Mehlhorn
    Department of Parasitology, Heinrich Heine University, 40225 Dusseldorf, Germany
    Parasitol Res 104:861-8. 2009
    ....
  26. ncbi request reprint In vitro and in vivo studies on the effect of a combination containing 10% imidacloprid and 50% permethrin against Ixodes ricinus ticks
    Heinz Mehlhorn
    Department of Parasitology, Heinrich Heine University, 40225, Dusseldorf, Germany
    Parasitol Res 89:323-5. 2003
  27. ncbi request reprint A light and electron microscopic study on the synergistic effect of pyrantel and the febantel metabolite febendazole on adult Toxocara canis in vitro
    Heinz Mehlhorn
    Institute of Zoomorphology, Cell Biology and Parasitology, Heinrich Heine University Dusseldorf, 40225 Dusseldorf, Germany
    Parasitol Res 90:305-13. 2003
    ..We hypothesise that these synergistic effects will also take place when dogs are treated either with Drontal Plus or Welpan in which lower dosages will be sufficient to destroy the worms...
  28. ncbi request reprint Molecular biological investigations of Brazilian Tunga sp. isolates from man, dogs, cats, pigs and rats
    M Vobis
    Institute for Zoomorphology, Cell Biology und Parasitology, Heinrich Heine University, 40225, Dusseldorf
    Parasitol Res 96:107-12. 2005
    ....
  29. ncbi request reprint Comparative study on the effects of three insecticides (fipronil, imidacloprid, selamectin) on developmental stages of the cat flea (Ctenocephalides felis Bouché 1835): a light and electron microscopic analysis of in vivo and in vitro experiments
    H Mehlhorn
    Department of Parasitology, Heinrich-Heine University, , Germany
    Parasitol Res 87:198-207. 2001
    ..Adult and larval fleas exposed to filter papers impregnated with the blood of treated dogs survived longer than 7 days, as did the untreated controls. All three drugs apparently acted on nerves and muscles and thus stopped motility...
  30. ncbi request reprint The effects of an imidacloprid and permethrin combination against developmental stages of Ixodes ricinus ticks
    H Mehlhorn
    Institute for Zoomorphology, Cell Biology and Parasitology, Heinrich Heine University, D 40225 Dusseldorf, Germany
    Parasitol Res 90:S119-21. 2003
  31. doi request reprint Pilot study on deltamethrin treatment (Butox 7.5, Versatrine) of cattle and sheep against midges (Culicoides species, Ceratopogonidae)
    Gunter Schmahl
    Institute of Zoomorphology, Cytology and Parasitology, Heinrich Heine University, 40225 Dusseldorf, Germany
    Parasitol Res 104:809-13. 2009
    ..The observed speed of kill and the deleting effects were so quick that the midges very probably would not bite before their death...
  32. ncbi request reprint In vivo and in vitro effects of imidacloprid on sheep keds (Melophagus ovinus): a light and electron microscopic study
    H Mehlhorn
    Department of Zoology and Parasitology, Heinrich-Heine University, , Germany
    Parasitol Res 87:331-6. 2001
    ..4. The compound initiates an ultimately lethal destruction of the ganglia, nerve chords and related muscle fibers, as can be seen in electron micrographs...
  33. ncbi request reprint The feline leukemia virus (FeLV) and the cat flea (Ctenocephalides felis)
    M Vobis
    Institute for Zoomorphology, Cell Biology and Parasitology, Heinrich Heine University, D 40225 Dusseldorf, Germany
    Parasitol Res 90:S132-4. 2003
  34. ncbi request reprint Synergistic effects of pyrantel and the febantel metabolite fenbendazole on adult Toxocara canis
    H Mehlhorn
    Institute for Zoomorphology, Cell Biology and Parasitology, Heinrich Heine University, D 40225 Dusseldorf, Germany
    Parasitol Res 90:S151-3. 2003
    ..Other groups have been observed for further 8 h periods up to 56 hours and then studied in the same way...
  35. ncbi request reprint Evidence of horizontal transmission of feline leukemia virus by the cat flea ( Ctenocephalides felis)
    M Vobis
    Institute for Zoomorphology, Cell Biology and Parasitology, Heinrich Heine University, 40225, Dusseldorf, Germany
    Parasitol Res 91:467-70. 2003
    ..This time FeLV was not detected in the fleas, or in the feces or blood samples. Results show that cat fleas are potential vectors for FeLV RNA in vitro and probably also in vivo...
  36. ncbi request reprint Molecular phylogeny of isolates of Ctenocephalides felis and related species based on analysis of ITS1, ITS2 and mitochondrial 16S rDNA sequences and random binding primers
    M Vobis
    Institute for Zoomorphology, Cell Biology und Parasitology, Heinrich Heine University, 40225, Dusseldorf, Germany
    Parasitol Res 94:219-26. 2004
    ..felis isolates and determine that some of the genetic variation coincided with minor differences in response to the control agent imidacloprid. However, overall findings do not support the existence of subspecies of C. felis...
  37. ncbi request reprint Investigations on the life cycle and morphology of Tunga penetrans in Brazil
    N Nagy
    Institute of Zoomorphology, Cell Biology and Parasitology, Heinrich Heine University, 40225, Dusseldorf, Germany
    Parasitol Res 101:S233-42. 2007
    ....
  38. ncbi request reprint Effects of the synergistic action of febantel and pyrantel on the nematode Heterakis spumosa: a light and transmission electron microscopy study
    H Mehlhorn
    Institute of Zoomorphology, Cell Biology and Parasitology, Heinrich Heine University Dusseldorf, Germany
    Parasitol Res 83:419-34. 1997
    ..It is concluded that the synergistic action of pyrantel and febantel on the functions of different organs of the parasites (muscle, nerve, inertine etc.) seen in the rodent model - also holds for the gut dwelling nematodes of the dog...
  39. doi request reprint Genebank accession numbers of sequences of Culicoides species vectors of bluetongue virus in Germany
    E Kiehl
    Department of Zoology and Parasitology, Heinrich Heine University, Dusseldorf, Germany
    Parasitol Res 105:293-5. 2009
    ..The numbers are FN 263292 until FN 263323...
  40. doi request reprint Efficacy of Oxyfly on Culicoides species--the vectors of Bluetongue virus--and other insects
    Gunter Schmahl
    Department of Zoomorphology, Cytology and Parasitology, Heinrich Heine University, 40225, Dusseldorf, Germany
    Parasitol Res 103:1101-3. 2008
    ..It turned out that this rather short contact was sufficient to kill the Culicoides specimens in minutes and the other insects in a few hours even if the plates had been impregnated 9 weeks before...
  41. doi request reprint Light and transmission electron microscopic studies on trophozoites and cyst-like stages of Histomonas meleagridis from cultures
    Mareike Munsch
    Department of Zoomorphology, Cytology and Parasitology, Heinrich Heine University of Dusseldorf, 40225, Dusseldorf, Germany
    Parasitol Res 104:683-9. 2009
    ..Such stages might be involved in transmission from one host to another and probably have been missed before in microscopical examinations of infected poultry...
  42. doi request reprint Molecular biological features of strains of Histomonas meleagridis
    Mareike Munsch
    Department of Zoomorphology, Cytology and Parasitology, Heinrich Heine University of Dusseldorf, 40225, Dusseldorf, Germany
    Parasitol Res 104:1137-40. 2009
    ..2008) represent a significant cluster among the published data of other Histomonas meleagridis isolates and thus the formation of cysts might be a common feature that would open further possibilities of transmission...
  43. doi request reprint Molecular biological comparison of different Besnoitia species and stages from different countries
    Ernst Kiehl
    Department of Parasitology, Heinrich Heine University, Dusseldorf, Germany
    Parasitol Res 106:889-94. 2010
    ..These findings give strong hints that B. besnoiti has a cycle between rodents and a predator and that cattle and other are only accidental hosts...
  44. ncbi request reprint Does rain reduce the efficacy of Butox 7.5 pour on (deltamethrin) against biting midges (Culicoides specimens)?
    Guenther Schmahl
    Department of Parasitology, Heinrich Heine University, Duesseldorf, Germany
    Parasitol Res 105:1763-5. 2009
    ..Differences in time taken for the midges to die were also seen between those exposed to treated cattle hair and those exposed to treated sheep hair...
  45. ncbi request reprint In vitro studies on the effects of flubendazole against Toxocara canis and Ascaris suum
    Elena Hanser
    Institute of Zoomorphology, Cell Biology and Parasitology, Heinrich Heine University, Dusseldorf, 40225 Dusseldorf, Germany
    Parasitol Res 89:63-74. 2003
    ..Flubendazole also stopped the formation of gametes. Summarising, even low concentrations of flubendazole (0.1 micro g/ml) led to significant and irreversible damage in all worms studied...
  46. doi request reprint What is the evidence for the existence of Plasmodium ovale hypnozoites?
    Joachim Richter
    Tropical Medicine Unit, University Hospital for Gastroenterology, Hepatology and Infectious Diseases, Faculty of Medicine, Heinrich Heine University, Dusseldorf, Germany
    Parasitol Res 107:1285-90. 2010
    ..e. the occurrence of true relapses. In P. ovale infection, hypnozoites have never been demonstrated by biological experiments, and the few reports published on relapses have conflicting results...
  47. doi request reprint Transmission electron microscopic studies of stages of Histomonas meleagridis from clonal cultures
    Michael Mielewczik
    Department of Zoomorphology, Cytology, and Parasitology, Heinrich Heine University, 40225 Dusseldorf, Germany
    Parasitol Res 103:745-50. 2008
    ..meleagridis...
  48. doi request reprint The European vectors of Bluetongue virus: are there species complexes, single species or races in Culicoides obsoletus and C. pulicaris detectable by sequencing ITS-1, ITS-2 and 18S-rDNA?
    Ernst Kiehl
    Department of Parasitology, Heinrich Heine University, 40225, Dusseldorf, Germany
    Parasitol Res 105:331-6. 2009
    ..However, it also became clear that C. obsoletus and C. pulicaris are Europe-wide occurring species and that several other clearly described separate species are probably only races...
  49. doi request reprint The efficacy of neem seed extracts (Tre-san, MiteStop on a broad spectrum of pests and parasites
    Gunter Schmahl
    Department of Zoology, Heinrich Heine University, 40225, Dusseldorf, Germany
    Parasitol Res 107:261-9. 2010
    ..However, some target species are less sensible (beetles, Triatoma stages, fly maggots), while the specimens of the other species cited above were successfully killed even at low concentrations of the extract...
  50. ncbi request reprint Repetitive sequences in the ITS1 region of the ribosomal DNA of Tunga penetrans and other flea species (Insecta, Siphonaptera)
    Sara Gamerschlag
    Department of Zoology and Parasitology, Heinrich Heine University, 40225, Dusseldorf, Germany
    Parasitol Res 102:193-9. 2008
    ..The repeat units with lengths from 10 to 99 bp are arranged in pure tandem or interspersed. The repetitive elements observed in the ITS1 of various flea species may serve as a valuable tool for phylogeographic studies...
  51. ncbi request reprint Neospora caninum is an invalid species name: an evaluation of facts and statements
    Alfred Otto Heydorn
    Institut für Parasitologie, Freie Universitat Berlin, Germany
    Parasitol Res 88:175-84. 2002
    ..heydorni (Tadros and Laarman 1976) Dubey 1977] and is almost identical with respect to molecular biological features with the NC-1 strain of N. caninum...
  52. ncbi request reprint Effects of toltrazuril and ponazuril on the fine structure and multiplication of tachyzoites of the NC-1 strain of Neospora caninum (a synonym of Hammondia heydorni) in cell cultures
    Anne Kathrin Darius
    Institut für Zoomorphologie, Zellbiologie und Parasitologie, Heinrich Heine Universitat Dusseldorf, Universitatsstrasse 1, 40225 Dusseldorf, Germany
    Parasitol Res 92:453-8. 2004
    ..The initial damage occurred within the apicoplast and the tubular mitochondrion in all cases,thus destroying two of the most important cell organelles...
  53. ncbi request reprint Neospora caninum: is it really different from Hammondia heydorni or is it a strain of Toxoplasma gondii? An opinion
    H Mehlhorn
    Institut für Zoomorphologie, Zellbiologie und Parasitologie, Heinrich Heine Universitat Dusseldorf, Germany
    Parasitol Res 86:169-78. 2000
    ..The first includes as a strain H. hammondi and the latter N. caninum. In any case there is absolutely no reason (with respect to general Zoological nomenclature) to create new genera!..
  54. doi request reprint Light and transmission electron microscopic studies on the encystation of Histomonas meleagridis
    Emma Zaragatzki
    Department of Parasitology, Heinrich Heine University, Dusseldorf, Germany
    Parasitol Res 106:977-83. 2010
    ..Both, however, should be able to survive situations outside of a body and thus might be transmitted from feces to another animal...
  55. doi request reprint In vitro and field studies on the contact and fumigant toxicity of a neem-product (Mite-Stop) against the developmental stages of the poultry red mite Dermanyssus gallinae
    Nina Locher
    Department of Parasitology, Heinrich Heine University, D 40225, Dusseldorf, Germany
    Parasitol Res 107:417-23. 2010
    ..Three other field trials proved that MiteStop is highly active against the red poultry mite. The most efficient dilution is 1:33 with tap water and spraying two or three times at intervals of 7 days...
  56. doi request reprint Light and scanning electron microscopic investigations on MiteStop-treated poultry red mites
    Nina Locher
    Department of Parasitology, Heinrich Heine University, 40225, Dusseldorf, Germany
    Parasitol Res 107:433-7. 2010
    ..Direct contact with the neem product, however, seemed to be of great impact. Chicken mites turned dark brown or even black after being treated with the neem product. SEM analysis showed damages along the body surface of the mites...
  57. ncbi request reprint No evidence of Wolbachia endosymbiosis with Loa loa and Mansonella perstans
    M P Grobusch
    Department of Parasitology, Institute of Tropical Medicine, University Hospital of Tubingen, Wilhelmstrasse 27, 72074, Tubingen, Germany
    Parasitol Res 90:405-8. 2003
    ..perstans microfilariae. The absence of Wolbachia in both filarial species therefore discourages the use of antibiotics as an adjunct or alternative approach to current treatment concepts for both loiasis and mansonelliasis perstans...
  58. ncbi request reprint Effects of toltrazuril and ponazuril on Hammondia heydorni (syn. Neospora caninum) infections in mice
    Anne Kathrin Darius
    Institut für Zoomorphologie, Zellbiologie und Parasitologie, Heinrich Heine Universitat Dusseldorf, Universitatsstrasse 1, 40225 Dusseldorf, Germany
    Parasitol Res 92:520-2. 2004
    ..Hammondia heydorni) must be pretreated with cortisone in order to show disease symptoms. This indicates the status of an opportunistic agent of disease. Toltrazuril was an effective curative agent...
  59. doi request reprint What are the infectious larvae in Ascaris suum and Trichuris muris?
    Mareike Kirchgässner
    Institute of Zoomorphology, Cell Biology and Parasitology, Heinrich Heine University, Dusseldorf, Germany
    Parasitol Res 103:603-7. 2008
    ..Therefore, in T. muris, the first larval stage is the infectious stage, which was proven by means of re-infections of mice 16, 18 or 20 weeks after incubation of the eggs...
  60. ncbi request reprint Pilot study on synanthropic flies (e.g. Musca, Sarcophaga, Calliphora, Fannia, Lucilia, Stomoxys) as vectors of pathogenic microorganisms
    Maike Förster
    Institute of Zoomorphology, Cell Biology and Parasitology, Heinrich Heine University, 40225 Dusseldorf, Germany
    Parasitol Res 101:243-6. 2007
    ..Among them, a series of pathogenic Escherichia coli strains (EAEC, EPEC, ETEC) was identified. This is the first study to clearly demonstrate the potential of these flies as vectors for the transmission of pathogenic microorganisms...
  61. ncbi request reprint PCR diagnosis of infections with different species of Opisthorchiidae using a rapid clean-up procedure for stool samples and specific primers
    Boris Muller
    Department of Zoomorphology, Cell Biology and Parasitology, Heinrich Heine University Duesseldorf, Duesseldorf, Germany
    Parasitol Res 100:905-9. 2007
    ..This communication reports a rapid cleanup procedure for human stool samples, which enables reliable identification of DNA by polymerase chain reaction from few eggs of opisthorchiid flukes in fecal samples...
  62. doi request reprint Investigations on the biology, epidemiology, pathology, and control of Tunga penetrans in Brazil: VII. The importance of animal reservoirs for human infestation
    Daniel Pilger
    Institute for Microbiology and Hygiene, Charité University of Medicine, Campus Benjamin Franklin, Hindenburgdamm 27, 12203, Berlin, Germany
    Parasitol Res 102:875-80. 2008
    ..In particular, it underlines the importance to include animals in control operation aiming at the reduction of disease occurrence in the human population...
  63. ncbi request reprint Investigations on the biology, epidemiology, pathology and control of Tunga penetrans in Brazil: III. Cytokine levels in peripheral blood of infected humans
    Hermann Feldmeier
    Institute of International Health, Center for Humanities and Health Sciences, Faculty of Medicine, Free University of Berlin, Fabeckstrasse 60 62, 12203, Berlin, Germany
    Parasitol Res 91:298-303. 2003
    ..The preponderance of the Th1 immune response was indicated by a significantly increased TNF-alpha/IL-4 ratio in patients with tungiasis, as compared with the control groups...
  64. ncbi request reprint Morbidity assessment in sand flea disease (tungiasis)
    Judith Dorothea Kehr
    Institute of Microbiology and Hygiene, Charite University Medicine, Campus Benjamin Franklin, Hindenburgdamm 27, 12203, Berlin, Germany
    Parasitol Res 100:413-21. 2007
    ..The degree of acute morbidity is directly related to the number of embedded sand fleas. When transmission is interrupted, the chronic morbidity reflects the infestation rates individuals have experienced in the past...
  65. ncbi request reprint Investigations on the biology, epidemiology, pathology and control of Tunga penetrans in Brazil: IV. Clinical and histopathology
    Hermann Feldmeier
    Department of Medical Microbiology and Immunology of Infection, Institute for Infection Medicine, Charite University Medicine Berlin, Campus Benjamin Franklin, Hindenburgdamm 27, 12203 Berlin, Germany
    Parasitol Res 94:275-282. 2004
    ..The clinical pathology is closely related to the parasite burden of an individual and the clustering of embedded fleas at certain predilection sites...
  66. ncbi request reprint New methods and strategies for monitoring susceptibility of fleas to current flea control products
    Byron L Blagburn
    Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL 36849, USA
    Vet Ther 7:86-98. 2006
    ..Collections of field flea isolates will continue in an attempt to detect and document any change in the susceptibility of field flea populations to imidacloprid...
  67. ncbi request reprint In contrast to dogs, red foxes (Vulpes vulpes) did not shed neospora caninum upon feeding of intermediate host tissues
    Gereon Schares
    Institute for Epidemiological Diagnostics, Federal Research Centre for Virus Diseases of Animals, Wusterhausen, Germany
    Parasitol Res 88:44-52. 2002
    ..like oocysts collected from fox faeces. These results suggest that the red fox is either an inappropriate final host for N. caninum or not at all a final host for this parasite...
  68. ncbi request reprint Investigations on the biology, epidemiology, pathology and control of Tunga penetrans in Brazil: I. Natural history of tungiasis in man
    Margit Eisele
    Institute of International Health, Center for Humanities and Health Sciences, Faculty of Medicine, Free University of Berlin, Fabeckstrasse 60 62, 12203, Berlin, Germany
    Parasitol Res 90:87-99. 2003
    ..It allows a more precise diagnosis, enables the assessment of chemotherapeutic approaches and helps to evaluate control measures at the community level...
  69. ncbi request reprint Larvicidal effects of various essential oils against Aedes, Anopheles, and Culex larvae (Diptera, Culicidae)
    Abdelkrim Amer
    Omar Almukhtar University, P O Box 919, Elbieda, Libya
    Parasitol Res 99:466-72. 2006
    ..The lethal concentration 50 values of these oils ranged between 1 and 101.3 ppm against A. aegypti, between 9.7 and 101.4 ppm for A. stephensi and between 1 and 50.2 ppm for C. quinquefasciatus...
  70. ncbi request reprint Persistency of larvicidal effects of plant oil extracts under different storage conditions
    Abdelkrim Amer
    Omar Almukhtar University, P O Box 919, Elbieda, Libya
    Parasitol Res 99:473-7. 2006
    ..Thus, the mode of storage is absolutely important for the larvicidal effects. The fresh preparations were always the best...
  71. ncbi request reprint Repellency effect of forty-one essential oils against Aedes, Anopheles, and Culex mosquitoes
    Abdelkrim Amer
    Omar Almukhtar University, P O Box 919, Elbieda, Libya
    Parasitol Res 99:478-90. 2006
    ..This effect needs, however, a peculiar formulation to fix them on the human skin...
  72. ncbi request reprint The sensilla of Aedes and Anopheles mosquitoes and their importance in repellency
    Abdelkrim Amer
    Omar Almukhtar University, P O Box 919, Al Beida, Libya
    Parasitol Res 99:491-9. 2006
    ..stephensi, it became not clear which organ is responsible for perception of repellents...
  73. ncbi request reprint Investigations on the biology, epidemiology, pathology and control of Tunga penetrans in Brazil. II. Prevalence, parasite load and topographic distribution of lesions in the population of a traditional fishing village
    Marion Muehlen
    Institute of International Health, Free University of Berlin, 12203 Berlin, Germany
    Parasitol Res 90:449-55. 2003
    ..8%) documented. The study shows that tungiasis is a highly prevalent ectoparasitosis in this deprived community with a peculiar distribution of prevalence and parasite burden...
  74. ncbi request reprint Investigations on the biology, epidemiology, pathology and control of Tunga penetrans in Brazil. V. Cytokine concentrations in experimentally infected Wistar rats
    Hermann Feldmeier
    Department of Medical Microbiology and Immunology of Infection, Institute of Infection Medicine, Charite University Medicine Berlin, Campus Benjamin Franklin, 12203 Berlin, Germany
    Parasitol Res 94:371-6. 2004
    ..The treatment of lesions with silicone oil abrogated the natural disease course and changed the pattern of cytokine secretion. We conclude that the Wistar rat is an appropriate model to study immune responses in tungiasis...