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  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 209 (1966), S. 526-526 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Mice infected with T. cruzi have also shown an increase in the number of parasites during pregnancy; however, the increase was only slight compared with that in female control animals. Lactating mice, however, display a very peculiar behaviour. Development of the parasites is retarded in them; the ...
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 26 (1970), S. 222-224 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Résumé A l'aide d'un exemple, les auteurs exposent en détail une méthode permettant d'observer facilement le transport de microorganismes dénombrables ou de particules quelconques, en nombre et volume désirés. Cette méthode, reposant sur le principe de la règle de 3 inverse, ne peut être employée que si l'on a établi au préalable des conditions de suspension stable. Elle convient très bien aussi aux préliminaires d'expériences microbiologiques.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Infection 13 (1985), S. 246-246 
    ISSN: 1439-0973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Infection 17 (1989), S. 315-315 
    ISSN: 1439-0973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1439-0973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Wir sammelten Parasiten und Seren von Reisenden, die aus verschiedenen endemischen Gebieten der Alten Welt mit einer Leishmaniasis nach Deutschland zurückkehrten. Die Antigenaktivitäten der isolierten und fortlaufend in Goldhamstern gehaltenenLeishmania-Stämme wurden im indirekten Immunofluoreszenztest (IFAT) verglichen. Die Antigenität wurde an Hand von Antikörpertitern in 18 Serumproben von 11 Patienten bewiesen. Neun Stämme desLeishmania donovani-Komplexes und vierLeishmania tropica-Isolate wurden in ihrem amastigoten Stadium miteinander verglichen. Hinzu kamen zwei Insekten-Flagellaten als Kulturformen:Strigomonas oncopelti undLeptomonas ctenocephali. 18 Serumproben von 11 Patienten standen für die Antikörperbestimmung mit diesen Antigenen zur Verfügung. Die maximalen Titerhöhen variierten in ein- und derselben antiserumprobe zum Teil erheblich, je nachdem, welches Antigen für den Test benutzt wurde. Hohe Antikörpertiter konnten nur erhalten werden, wennLeishmania donovani als Antigen vorlag, es ergaben sich aber auch zwischen den einzelnen Stämmen dieser Leishmaniaart erhebliche Unterschiede in der Antigenaktivität. Antigene anderer Art erwiesen sich als wenig wirksam. Zwischen amastigoten und promastigoten Entwicklungsformen einesLeishmania donovani-Stammes konnten keine Unterschiede in der Antigenaktivität erkannt werden. Für den Nachweis möglichst hoher Antikörpertiter im IFAT ist die Auswahl geeigneter Antigene von ausschlaggebender Bedeutung. Niedrige Titer erschweren deren Beurteilung als spezifisch und sind eine schlechte Ausgangsposition für die Beobachtung des obligatorischen Titerabfalles nach erfolgreicher Therapie.
    Notes: Summary Antigens and corresponding sera were collected from travellers with leishmaniasis returning to Germany from different endemic areas of the old world. The antigenicity of theseLeishmania strains, which were maintained in Syrian hamsters, was compared by indirect immunofluorescence (IFAT). Antigenicity was demonstrated by antibody titres in 18 sera from 11 patients. The amastogotic stages of nine strains ofLeishmania donovani and four strains ofLeishmania tropica were compared with each other and with the culture forms of insect flagellates (Strigomonas oncopelti andLeptomonas ctenocephali). Eighteen sera from 11 patients were available for antibody determination with these antigens. The maximal antibody titres in a single serum varied considerably depending on which antigen was used for the test. High antibody levels could only be maintained whenLeishmania donovani was employed as the antigen, but considerable differences also occurred between the different strains of this species. The other antigens were weaker. No differences in antigenicity between amastigotes and promastigotes of the same strain were observed. It is important to select suitable antigens. Low titres may be of doubtful specificity and are a poor baseline for the fall in titre which is an essential index of effective treatment.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Journal of pest science 44 (1971), S. 48-48 
    ISSN: 1612-4766
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1439-0973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Zwei Patienten mit Erythema-migrans-Krankheit (EMK) wurden in den Jahren 1973 bzw. 1977 mit oralem Penicillin behandelt. Fünf und sieben Jahre später trat in beiden Fällen nach Zeckenstich eine EMK zum zweiten Mal auf. Die ersten und zweiten Erythema-migrans-Herde waren jeweils an verschiedenen Lokalisationen zu beobachten. Die Testungen auf Antikörper gegenüberBorrelia burgdorferi an Hand von Seren, die vor (in einem Fall), während und nach der zweiten EMK entnommen wurden, waren negativ (Patient 1) oder ergaben einen Anstieg der IgG-Titer um mindestens vier Stufen, ohne jedoch positiv zu werden (Patient 2). Diese Beobachtungen weisen darauf hin, daß eine Reinfektion bei der EMK ohne signifikant erhöhte Antikörpertiter möglich ist.
    Notes: Summary Two patients received oral penicillin for erythema migrans disease (EMD) in 1973 and 1977. Five and seven years later, respectively, they developed EMD for a second time after being bitten by ticks. The first and second erythema migrans lesions appeared in different places. Tests of sera evaluated for antibodies toBorrelia burgdorferi before (in one case), during and after the second episode of EMD remained negative (patient 1) or yielded an at least four-fold rise of IgG antibody titers, but did not become positive (patient 2). These cases provide evidence that reinfection in EMD may occur without a significant elevation of specific antibody titers.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Infection 16 (1988), S. 157-157 
    ISSN: 1439-0973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Infection 19 (1991), S. 114-114 
    ISSN: 1439-0973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Infection 16 (1988), S. 185-185 
    ISSN: 1439-0973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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