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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 84 (1962), S. 5003-5003 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1420-908X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The blood and plasma kinetics of intravenously administered3H-labelled PAF-acether were determined in seven rabbits. PAF-acether was rapidly distributed and slowly eliminated. Individual variations were very small. The main route of metabolism involves deacetylation of the PAF-acether into lyso-PAF-acether, leading to an equilibrium between the two molecules (10%/90%). This equilibrium, observed within 30 minutes, was still the same after 6 hours suggestingin vivo reacetylation of lyso-PAF-acether into PAF-acether. However, this could not be verified. After intravenous administration of lyso-PAF-acether in two rabbits, PAF-acether could not be found in any blood sample. The pharmacokinetic behaviour of both PAF-acether and lyso-PAF-acether can be described by a three-compartment model.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 11 (1964), S. 0 
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. Studies were carried out on the introduction of labeled precursors into the DNA of Paramecium aurelia (syngen 4, stock 51) by way of the bacteria that are used for food. A thymine-requiring strain of Escherichia coli (15 T−) was labeled by growth in either H3-methyl thymidine or 2-C14 bromouracil, washed free of the exogenous label, and fed to the paramecia. The tritium label from the bacteria was incorporated almost exclusively into the DNA of the paramecia, whereas it was much less specifically incorporated when introduced directly from the medium. The Cu label from bromouracil was also incorporated mainly into the DNA of the paramecia although a small amount appeared in RNA. The formation of labeled food vacuoles was followed. Food vacuoles were formed at a nearly constant rate, with the total number of vacuoles increasing throughout the cycle. The lifetime of the vacuoles was about 2.5 hours. Incorporation of the label into the DXA of the paramecia begins within a few minutes of the formation of the first labeled vacuole. DNA synthesis begins about 1.5 hr after the previous fission (total cell cycle about 5.8 hr) and progresses at a nearly constant rate throughout the remainder of the cycle.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 67 (1963), S. 281-283 
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Sociology 6 (1980), S. 479-508 
    ISSN: 0360-0572
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Sociology
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 14 (1961), S. 82-82 
    ISSN: 0001-5520
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Langenbeck's archives of surgery 353 (1981), S. 233-240 
    ISSN: 1435-2451
    Keywords: Large bowel surgery ; Antibiotic prophylaxis ; Bowel preparation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung In einer prospektiven randomisierten Studie wurden zwei Methoden der Antibioticaprophylaxe in der colorectalen Chirurgie miteinander verglichen. 72 Patienten, bei denen eine elektive Operation wegen eines Colonoder Rectumcarcinoms durchgeführt wurde, erhielten Kanamycin and Metronidazol entweder oral, im Rahmen der präoperativen Darmvorbereitung, oder i. v., im Sinne einer kurzfristigen perioperativen Abschirmung. Bei der ersten Gruppe wurde eine Reduktion der aeroben und anaeroben Keimzahl im Darmlumen ohne therapeutische Serumkonzentrationen der verwendeten Medikamente erreicht, während bei der zweiten Gruppe wirksame interoperative Serumkonzentrationen ohne Veränderung der Keimzahlen im Darmlumen bestanden. Es ergab sich zwischen den beiden Gruppen keine signifikanten Unterschiede in der Häufigkeit der postoperativen Infekte. Diese Resultate stehen im Gegensatz zu denjenigen, die eine Arbeitsgruppe am Birmingham-General Hospital mit dem gleichen Studienprotokoll verzeichnete. In Birmingham waren postoperative Infektionen in der oral vorbereiteten Gruppe signifikant häufiger. Dieser Unterschied ist mit größter Wahrscheinlichkeit durch das Überwuchern Kanamycin-resistenter Bakterienstämme während der präoperativen oralen antibiotischen Vorbereitung bedingt. Das Vorhandensein resistenter Colistämme schien aber die Wirksamkeit der intravenösen Abschirmung nicht wesentlich zu beeinträchtigen. Die Autoren schließen daraus, daß die parenterale, kurzfristige Abschirmung der oralen Darmvorbereitung mit Antibiotica vorzuziehen ist.
    Notes: Summary A prospective randomized trial was designed to establish whether parenteral antibiotic prophylaxis was as effective as oral antimicrobial bowel preparation in preventing sepsis after colorectal surgery. Patients scheduled for elective resection of colorectal cancer received metronidazole and kanamycin either orally in the preoperative phase or parenterally as a short-term perioperative prophylaxis. The former regimen resulted in reduction of the microbial concentrations in the bowel contents in the absence of therapeutic serum concentrations at the time of operation, whereas the latter achieved therapeutic intraoperative serum levels without altering the colonic microflora. 72 patients were studied. There was no significant difference in the occurrence of postoperative sepsis between the two groups (a total of 72 patients). These results differ from those obtained at the Birmingham General Hospital using the same protocol, in which postoperative sepsis was significantly more common in the group of patients having oral bowel preparation. This difference was most probably due to an overgrowth of kanamycin-resistant coliforms during the period of oral antibiotic preparation. The presence of resistant organisms did not, however, result in failure of systemic prophylaxis. The authors conclude that short-term parenteral application is the safer method of antibiotic prophylaxis in colorectal surgery and is to be preferred to oral antimicrobial bowel preparation.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 203 (1964), S. 1163-1165 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Hysteresis in metal-hydrogen systems has been found by a number of workers as far back as the early 1900's, and the subject has been reviewed in recent publications3-7. Most explanations involved internal solid-state properties of the hydrided alloys. On a pressure-composition plot different paths ...
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 43 (1981), S. 47-50 
    ISSN: 1432-0584
    Keywords: Neutrophil alkaline phosphatase ; Hypersegmented neutrophils
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Hypersegmentation of nuclei was induced in rat circulating neutrophils after cyclophosphamide (CY) administration and neutrophil alkaline phosphatase (NAP) activity was measured. It was shown that changes in NAP levels and segmentation of neutrophil nuclei were parallel. Relationship between age of neutrophils and NAP levels is discussed.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 37 (1981), S. 906-907 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary In normal adult Beagle dogs red cell concentration decreased linearly with increasing mean red cell volume and mean red cell haemoglobin. The results are statistically significant (p〈0.001).
    Type of Medium: Electronic Resource
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