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  • 1
    ISSN: 1365-3083
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: A major problem in the intensive care unit nowadays is the development of multiple organ dysfunction syndrome (MODS), a cumulative sequence of progressive deterioration of organ functions. While the pathogenic pathways of MODS remain to be elucidated, it is assumed that cells of the host defence system, especially the macrophages, are altered in their function. During the development of MODS it is assumed that macrophages are overactivated and that an exaggerated inflammatory response may contribute to its pathogenesis. In order to gain insight into the alterations of the functional status of the macrophage during the development of MODS, a series of macrophage functions was measured in the subsequent phases of zymosan induced generalized inflammation in mice. Male C57BL/6 mice received a single dose of zymosan intraperitoneally and groups of animals were killed after 2, 5, 8, and 12 days. Peritoneal macrophages were collected for in vitro assessment of the ADCC, the production of superoxide (O−2) and nitric oxide (NO), and complement mediated phagocytosis and intracellular killing of Staphylococcus aureus. A single intraperitoneal injection with zymosan resulted in a three-phase illness. During the third phase the animals developed MODS-like symptoms. Peritoneal cells from control animals produced very low to non-detectable amounts of O−2 and NO, and the cytotoxic activity was also low. During the development of MODS, from day 7 onwards, the ability to produce O−2 and NO-2 became strongly elevated, as did the cytotoxic activity. These findings are in parallel with the development of MODS whereas the phagocytic and killing capacity remained essentially unaltered. The changes found could be detrimental for the organism, thus possibly contributing to the onset and development of MODS.
    Materialart: Digitale Medien
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  • 2
    Digitale Medien
    Digitale Medien
    Springer
    Journal of molecular medicine 71 (1993), S. 1-2 
    ISSN: 1432-1440
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    ISSN: 1432-0584
    Schlagwort(e): Streptococci ; Infection ; Prophylaxis ; Leukemia ; Cotrimoxazole ; Penicillin
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary In a controlled randomized study among 48 patients undergoing 75 courses of aggressive antileukemic therapy, it was shown that cotrimoxazole was less effective than penicillin G in preventing septicemia due to viridans streptococci. Both antibiotics were given intravenously. During 35 episodes of chemotherapy in the group of patients on penicillin G only, one patient developed a streptococcal bacteremia; this contrasted with bacteremia and septicemia in seven patients during 40 episodes in the group on cotrimoxazole. In three of these seven patients, septicemia was associated with respiratory failure and it was the cause of death in one. Both aerobic gram-negative rods and streptococci which caused infection despite cotrimoxazole prophylaxis were resistant to cotrimoxazole. Side effects such as hypersensitivity and favorable or unfavorable interaction with the oral selective decontamination regimen were similar for the two drugs, with the exception of colonization withCandida spp, which occurred more often in patients on cotrimoxazole than in patients on penicillin.
    Materialart: Digitale Medien
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  • 4
    Digitale Medien
    Digitale Medien
    Springer
    Annals of hematology 42 (1981), S. 253-257 
    ISSN: 1432-0584
    Schlagwort(e): Phagocytosis ; Intracellular killing ; Granulocytes ; Opsonins ; Bone marrow transplantation
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary The phagocytosis and intracellular killing by granulocytes as well as the opsonizing capacity of the serum were studied in 13 patients who had undergone allogeneic bone marrow transplantation. Phagocytosis was normal in all patients. A moderately impaired opsonic activity of the serum was found in two patients, who were investigated within 30 days after the transplantation. The intracellular killing was less than control values in two patients. In one patient this was probably due to the existence of a split chimerism.
    Materialart: Digitale Medien
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  • 5
    Digitale Medien
    Digitale Medien
    Springer
    Histochemistry and cell biology 86 (1987), S. 433-436 
    ISSN: 1432-119X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary An instrument combining scanning electron microscopy (SEM) and light microscopy (LM) was used to study the cell surface characteristics and DNA content of macrophages in murine bone marrow cultures. After a quantitative Feulgen DNA staining, the DNA content of the individual macrophages was measured and their cell surface morphology was studied immediately thereafter with the SEM part of the instrument. The cells were divided into six groups according to the number of microvilli and/or microridges present on their surface. A proportion of macrophages showed a DNA content more than occurs in diploid cells, which could indicate a future division. No special surface morphology could be detected in this cell type.
    Materialart: Digitale Medien
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  • 6
    ISSN: 1432-1238
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 7
    Digitale Medien
    Digitale Medien
    Springer
    Histochemistry and cell biology 88 (1988), S. 367-373 
    ISSN: 1432-119X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary Acetylaminofluorene (AAF) modified cytomegalovirus (CMV) DNA probes have been applied for the rapid detection of CMV genomes by non-radioactive in situ hybridization in routinely obtained pathological material. To establish proper protocols, AAF modified mouse satellite DNA and mouse liver were used to investigate the procedural variables. Among these were type and time of fixation, glass slide coating for improved tissue adherence, protease permeabilization of sections, type and time of denaturation and hybridization, probe concentration, post-hybridization washing conditions and immunocytochemical detection. This research has led to a user-friendly procedure which, in addition to cells displaying a cytopathological effect typical for CMV infection detects with high sensitivity CMV carrying cells that show no histo-pathological alterations. It can be readily applied in routine clinical-diagnostic laboratories.
    Materialart: Digitale Medien
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  • 8
    ISSN: 1432-1238
    Schlagwort(e): Key words Meningococcal disease ; Prognosis ; Disseminated intravascular coagulation ; Platelets ; Tumour necrosis factor ; Lactate
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Objective: To determine the value of the platelet count at admission for the assessment of the severity of disease in acute meningococcal infections. Design: Retrospective and prospective, descriptive patient study. Setting: University Hospital Intensive Care Unit (ICU). Patients: All patients (n = 92) with acute meningococcal disease from 1985 to 1997, who arrived at the ICU within 12 h after hospital admission and had more than one platelet count during the first 12 h. Measurements and results: After admission, platelets dropped in 95 % of the patients. At admission, 2/41 (5 %) of the non-hypotensive patients and 13/51 (25 %) of the hypotensive patients had platelets fewer than 100 × 109/l. During the following 12 h, these percentages increased to 15 % and 71 %, respectively. Fatalities had, at admission, a median platelet count of 111 × 109/l (range, 19–302 × 109/l), whereas the nadir, occurring at median 7.0 h (range, 1.3–12 h), was 31 × 109/l (range, 12–67 × 109/l). Plasma TNF, measured shortly after admission, correlated better with the platelet nadir (r = − 0.65, p 〈 0.0001) than with the platelet count at admission. Similarly, serum lactate correlated better with the platelet nadir. Conclusions: As platelets drop after admission, the use of the platelet count at admission for the assessment of the prognosis in acute meningococcal disease may be misleading. Frequently repeated platelet counts are a better tool for evaluating the severity of disease.
    Materialart: Digitale Medien
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  • 9
    ISSN: 1439-0973
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Beschreibung / Inhaltsverzeichnis: Zusammenfassung Die Wirkung von Acyclovir intravenös (in einer Dosis von 30 mg/kg pro Tag für fünf Tage) auf den unkomplizierten Herpes zoster wurde bei 51 Patienten in einer Doppelblindstudie geprüft. Obwohl bei den vorhandenen Herpes zoster-Läsionen eine Tendenz zu rascherer Heilung bestand und das Neuauftreten von Läsionen in der Acyclovir-Gruppe etwas früher aufhörte, waren diese Unterschiede statistisch nicht signifikant. Unter der Behandlung war die Schmerz-Score bei Patienten, die Acyclovir erhielten, signifikant niedriger als bei Patienten, die Placebo erhielten. Bei der Verlaufsbeurteilung fanden sich zwischen den Gruppen jedoch keine Unterschiede. Zu Komplikationen des Herpes zoster kam es nur in der Plazebo-Gruppe (in je zwei Fällen Generalisation und Keratitis). Mit der möglichen Ausnahme des Zoster im Trigeminus-Bereich oder starker Schmerzen scheint Acyclovir bei immunkompetenten Patienten mit Herpes zoster nur von geringem Wert zu sein.
    Notizen: Summary The effect of intravenous acyclovir (at a dosage of 30 mg/kg per day for five days) on uncomplicated herpes zoster was investigated in 51 patients in a double-blind study. Although existing herpes zoster lesions tended to heal more rapidly and new lesions ceased to appear somewhat earlier in the acyclovir group, these differences were not statistically significant. During treatment, patients on acyclovir had significantly lower pain scores than placebo-treated patients. At follow-up, however, there was no difference between the two groups. Complications of herpes zoster occurred only in the placebo groups (generalization in two and keratitis in two cases). With the possible exception of trigeminal zoster or severe pain, acyclovir seems to offer little benefit for immunocompetent patients with herpes zoster.
    Materialart: Digitale Medien
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  • 10
    Digitale Medien
    Digitale Medien
    Springer
    Infection 15 (1987), S. 109-110 
    ISSN: 1439-0973
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Beschreibung / Inhaltsverzeichnis: Zusammenfassung Ein 16 Jahre altes Mädchen wurde mit Herztamponade bei eitriger Meningokokken-Perikarditis ohne Meningitis oder Meningokokken-Septikämie aufgenommen. Nach Aspiration des Perikardergusses und Behandlung mit hohen Dosen Benzylpenicillin über Dauerinfusion trat Heilung ein.
    Notizen: Summary A 16 year-old female presented with cardiac tamponade due to purulent meningococcal pericarditis without concomitant meningitis or meningococcaemia. She recovered after aspiration of the pericardial effusion and administration of a high dose of benzylpenicillin via a continuous infusion.
    Materialart: Digitale Medien
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