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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 30 (1983), S. 0 
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: . Fine structural studies of a specialized vesicle system associated with the endoplasmic reticulum (ER) of exo-erythrocytic Plasmodium berghei suggest that this system may be the equivalent of a Golgi apparatus. Patches of ER, randomly distributed in the cytoplasm of developing parasites, are formed of smooth and ribosome-studded cisternae intermingled with each other. The vesicle systems are located between as well as at the edges of ER aggregates and appear to be in different stages of budding from the cisternae. Prolonged osmication reveals distinct staining of the nuclear envelope and ER of the parasites as well as part of the Golgi apparatus of the hepatocytes. However, the small vesicles associated with the parasite's ER are unstained, as are the coated vesicles in the Golgi region of the liver cell. These sites in the parasite cytoplasm seem comparable to the concave surface of the Golgi apparatus in liver cells. The pinched-off vesicles fuse with others to form the prominent peripheral vacuolization characteristic of the nearly mature exo-erythrocytic form. The formation of these peripheral vacuoles and their subsequent fusion with the parasite membrane may be an exocytosis mechanism supplying the rapidly expanding parasite with new plasma membrane material.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 302 (1983), S. 424-426 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Sporozoites of P. berghei ANKA were collected from Ano -pheles stephensi as described previously19 and suspended in normal rat serum20'21. Four-week-old female Brown Norway rats were then inoculated with 25 million sporozoites directly into the portal vein. The flow of the portal blood was ...
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 40 (1984), S. 1317-1329 
    ISSN: 1420-9071
    Keywords: Malaria ; Plasmodia ; asexual stages ; sporozoite, exoerythrocytic form ; sporozoite-hepatocyte interaction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-119X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Enzyme histochemical methods were performed on sporozoite infected liver tissue of rats in order to gain insight into the nutrition and metabolism of exoerythrocytic forms of Plasmodium berghei. The following enzymes were demonstrated in the hepatocytic stages of the parasites, obtained 41 and 48 h after inoculation of sporozoites: acid phosphatase, cytochrome oxidase, NADH-tetrazolium reductase, succinate dehydrogenase, NAD+ and NADP+ dependent isocitrate dehydrogenase, NADP+-dependent malate dehydrogenase, lactate dehydrogenases, 6-phosphogluconate dehydrogenase and glucose-6-phosphate dehydrogenases and α-glycerol-phosphate dehydrogenase. The results suggest that a conventional Embden-Meyerhoff pathway, pentose phosphate pathway and Krebs' citric acid cycle may in part be present in these exoerythrocytic parasites. Alkaline phosphatase, nucleoside polyphosphatase, 5′nucleotidase. glucose-6-phosphatase, α-glucan phosphorylase, NAD+ dependent malate dehydrogenase, amino-peptidase M and non-specific esterases were not detected by our techniques in the parasite. The enzyme distribution of this intrahepatocytic malaria parasite revealed by histochemistry is compared with the enzyme distribution in the other phases of the parasite's life cycle.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-0584
    Keywords: Candidiasis ; Neutropenia ; Fluconazole
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Disseminated candidiasis is a serious infectious complication with a mortality as high as 50%. Standard therapy consists of parenteral amphotericin B which is associated with major side effects and prolonged hospitalization. The aim of the study was to assess the efficacy and safety of fluconazole in an open, noncomparative study. Fluconazole, as a single agent, was given intravenously for the first 3 days at a dose of 200 mg twice daily, followed by 200 mg twice daily orally until resolution of signs and symptoms or evident treatment failure. The study group comprised 24 consecutive patients of whom nine had acute and 15 chronic disseminated candidiasis. A clinical response was achieved in 67% of cases of acute disseminated candidiasis and in 86% of cases of chronic disseminated candidiasis. The median duration of therapy was 15 days and 6 months, respectively. Superinfections withAspergillus fumigatus developed in five patients who were persistently neutropenic. No drug-related toxicity was registered.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-0584
    Keywords: Key words Candidiasis ; Neutropenia ; Fluconazole
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Disseminated candidiasis is a serious infectious complication with a mortality as high as 50%. Standard therapy consists of parenteral amphotericin B which is associated with major side effects and prolonged hospitalization. The aim of the study was to assess the efficacy and safety of fluconazole in an open, noncomparative study. Fluconazole, as a single agent, was given intravenously for the first 3 days at a dose of 200 mg twice daily, followed by 200 mg twice daily orally until resolution of signs and symptoms or evident treatment failure. The study group comprised 24 consecutive patients of whom nine had acute and 15 chronic disseminated candidiasis. A clinical response was achieved in 67% of cases of acute disseminated candidiasis and in 86% of cases of chronic disseminated candidiasis. The median duration of therapy was 15 days and 6 months, respectively. Superinfections with Aspergillus fumigatus developed in five patients who were persistently neutropenic. No drug-related toxicity was registered.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical microbiology & infectious diseases 9 (1990), S. 366-367 
    ISSN: 1435-4373
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1439-0973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Akutes Q-Fieber ist eine systemische Krankheit, die nur selten tödlich endet — etwa bei chronisch Kranken oder bei Auftreten einer Endokarditis. Im vorliegenden Fall führte eine akute Q-Fieber-Pneumonie, die bei einem 11jährigen Kind mit chronischer Granulomatose auftrat, zum Tod. Die Komplementbindungsreaktion zeigte einen Antikörpertiteranstieg auf 1:1,024. IgM war im Immunofluoreszenztest nachzuweisen. Der Erreger wurde in histologischen Schnitten in der Lunge nach Giemsa-Färbung und mittels indirekter Immunfluoreszenz nachgewiesen. Das Kind hatte sich wahrscheinlich während eines Urlaubs in Frankreich mitCoxiella burnetii infiziert. Die Behandlung erfolgte mit einer Vielzahl antimikrobieller Substanzen mit breitem Wirkungsspektrum, Substanzen mit Aktivität gegen Q-Fieber wie Chloramphenicol oder Tetrazykline wurden jedoch nicht eingesetzt.
    Notes: Summary Acute Q-fever is a systemic illness which rarely has a fatal outcome. Fatal cases do occur with the chronic form of the disease and associated with endocarditis. This report presents the case of a fatal, acute Q-fever pneumonia in an 11-year-old patient with chronic granulomatous disease. Complement fixation antibody titer rose to 1:1,024 with positive IgM in immunofluorescence. Giemsa stained lung sections and indirect immunofluorescence demonstrated the microorganisms in the tissues. TheCoxiella burnetii infection was probably contracted during a holiday trip to rural France. Despite the fact that the patient received a variety of antimicrobial agents with broad spectrum activity against bacteria and fungi, coverage for Q-fever, i.e. chloramphenicol or tetracyclines, was not included.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1439-0973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Streptokokken der Gruppe G können bei empfänglichen Personen schwere Infektionen verursachen. Eine Beteiligung der Augen an einer Infektion ohne vorhergehendes Augenleiden ist selten beschrieben. Die vorliegende Arbeit beschreibt zwei Fälle von Gruppe G Streptokokken-Endokarditis, die sich klinisch mit einer endogenen Endophthalmitis präsentierten. Lokale und systemische Gabe von Antibiotika führte zur Defekt-Heilung mit Verminderung des Sehvermögens.
    Notes: Summary Group G streptococci can cause serious infections in patients with predisposing factors. Involvement of the eye has rarely been reported in patients without ocular history. Two cases of group G streptococcal endocarditis which presented with an endogenous endophthalmitis are reported. Topical and systemic antimicrobial therapy resulted in recovery, but visual outcome was poor.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1439-0973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Achtundzwanzig neutropenische (〈500 Granulozyten/µl) Erwachsene mit einer mikrobiologisch oder klinisch nachgewiesenen, systemischen Mykose wurden randomisiert und behandelt mit Amphotericin B (0,5 mg/kg/Tag, n=14) oder mit einer Kombination von Amphotericin B (0,5 mg/kg/Tag) mit 5-Flucytosin (100 mg/kg/Tag, n=14) intravenös. Im Durchschnitt wurden beide Gruppen über 10 Tage behandelt, so daß sich eine totale Amphotericin B Dosis von 338 mg, bzw. 308 mg ergibt. Die Dauer der Granulozytopenie betrug durchschnittlich 18 Tage in der Amphotericin B Gruppe, und 20 Tage in der Gruppe mit Kombinationstherapie. Nur zwei Patienten in der Amphotericin B Gruppe und drei in der Kombinationsgruppe überlebten die Pilzinfektion. Die Nebenwirkungen waren vergleichbar in beiden Gruppen, mit einer Steigerung des Serum-Kreatinins bei sechs Patienten während der Verabreichung von Amphotericin B alleine, und bei sieben Patienten während der Kombinations-therapie. Andere ernsthafte Nebenwirkungen traten nicht auf. In beiden Gruppen war das Resultat der Behandlung enttäuschend, teilweise dadurch, daß die Mykose sich bereits am Anfang der Therapie zu weit entwickelt hatte und daß nur bei der Hälfte der Patienten ein Anstieg der neutrophilen Granulozyten stattfand.
    Notes: Summary Twenty-eight neutropenic (〈500 granulocytes/µl) adults with microbiologically or histologically proven systemic mycosis were randomly assigned to receive either amphotericin B alone (0.5 mg/kg/day; n=14) or amphotericin B (0.5 mg/kg/day) plus 5-flucytosine (150 mg/kg/day; n=14) intravenously. Therapy was given for an average duration of 10 days in both groups, amounting to a total dose of amphotericin B of 338 mg and 308 mg, respectively. The mean duration of granulocytopenia was 18 days in the amphotericin B group and 20 days in the combination group. Only two patients treated with amphotericin B alone and three given the combination survived. Adverse events were similiar in both groups with an elevation of the serum creatinine in six cases during the administration of amphotericin B alone and in seven cases treated with the combination. No other serious adverse events were encountered. Treatment with both regimens was disappointing partly because mycosis was too far advanced by the time therapy was begun and neutrophils were recovered in only half the patients.
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