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  • 1
    Electronic Resource
    Electronic Resource
    The host-parasite interface of strigeoid trematodes VIII. Surface specialization of the adhesive organ of cardiocephaloides physalis (Lutz, 1926) (1970)
    Springer
    Cellular and molecular life sciences 26 (1970), S. 439-441 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Die ultrastruktuelle Untersuchung des Haftorgans vonCardiocephaloides physalis (Trematoda) lässt eine mit Aushöhlungen versehene zellplasmatische Oberfläche erkennen, die mit der lamina propria der Wirtsdarmzotte (Phalacrocorax bougainvillei) in engstem Kontakt steht und möglicherweise Plazenta-funktion besitzt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01896937
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    An ultrastructural study of the effect of parasitism by larval Schistosoma mansoni on the calcium reserves of the host, Biomphalaria glabrata (1984)
    Springer
    Cell & tissue research 236 (1984), S. 643-649 
    Details
    ISSN: 1432-0878
    Keywords: Calcium cells ; Shell ; Biomphalaria glabrata ; Schistosoma mansoni
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The tissues of Biomphalaria glabrata contain three types of calcium cells which can be differentiated by their location and the size and number of their contained corpuscles. X-ray analysis has confirmed the presence of calcium and magnesium in the corpuscles. Molluscs containing the larval stages of Schistosoma mansoni at 40 days post infection show disintegration of the calcareous corpuscles in Type-A calcium cells and erosion of the inner surface of the shell.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00217234
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Schistosoma mansoni: Dose-related tegumental surface changes after in vivo treatment with praziquantel (1983)
    Springer
    Parasitology research 69 (1983), S. 643-653 
    Details
    ISSN: 1432-1955
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The in vivo effects of a range of concentrations of praziquantel (10, 25, 50, 100, 200 and 500 mg/kg body weight of mouse) on the tegumental surface of adultSchistosoma mansoni were studied using scanning electron microscopy. Worms were recovered from mice at 1 and 4h post-treatment. In general, irrespective of the dose level, male worms exhibited more pronounced and extensive surface alterations which included surface bledding, swellings, wrinkling and constrictions and surface lesions, particularly on the spined tubercles. In male worms, in particular, the number of worms exhibiting damage and the amount of tegumental surface damage depended, mainly, on the concentration of praziquantel, although, at any given dose level, the extent of the damage increased with time post-treatment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00926674
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  • 4
    Electronic Resource
    Electronic Resource
    Schistosoma mansoni: The effects of a subcurative dose of praziquantel on the ultrastructure of worms in vivo (1983)
    Springer
    Parasitology research 69 (1983), S. 73-90 
    Details
    ISSN: 1432-1955
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The in vivo effects of a subcutaneously-administered subcurative dose (200mg/kg body weight of mouse) of praziquantel on the structure ofSchistosoma mansoni was investigated. Worms were collected at varying times post-treatment and processed for both SEM and TEM examination. Praziquantel caused extensive structural changes to both male and female worms within 15 min of treatment although variations in the amount of drug-induced damaged was observed between male and female worms. In female worms although some tegumental vacuolation was observed within 15 min, the major structural change was an often extensive vacuolisation of the subtegumental tissues followed by varying degrees of structural disruption to the subtegumental and gastrodermal musculature. In male worms the initial effects were a vacuolisation of parts of the dorsal tegument and loss of tegumental cytoplasm due to the pinching off of evaginations of the outer surface. With increasing time post-treatment there was an increase in the amount of tegumental damage, particularly in male worms, with total disruption of parts of the outer surface occurring. Also in male worms there was an increase in the amounts of vacuolisation of the parenchymal tissues and in the degree of structural damage to the musculature. In those female worms where subtegumental damage was not extensive changes in the structure of the differentiating vitelline cells were noted.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00934012
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  • 5
    Electronic Resource
    Electronic Resource
    Reversibility of drug-induced regression in femaleSchistosoma mansoni upon pairing with male worms in vivo (1984)
    Springer
    Parasitology research 70 (1984), S. 421-424 
    Details
    ISSN: 1432-1955
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00927830
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  • 6
    Electronic Resource
    Electronic Resource
    The demonstration of calcium in the axonal granules of the peripheral nervous system of male Schistosoma mansoni by X-ray microanalysis (1982)
    Springer
    Cell & tissue research 222 (1982), S. 597-604 
    Details
    ISSN: 1432-0878
    Keywords: Schistosoma mansoni ; Freeze-dried cryosections ; X-ray microanalysis ; Calcium ; Peripheral nervous system
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary A conspicuous feature of freeze-dried cryosections of male Schistosoma mansoni is the presence of groups of electron-dense granules. X-ray analysis in the TEM of these granules shows them, in comparison with the adjacent cytoplasm, to contain significantly greater amounts of sodium and calcium. In glutaraldehyde-fixed material, these granules have been correlated with the membrane-bounded, electron-dense granules found within the axons of the peripheral nervous system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00213857
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    Paper (German National Licenses)
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