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  • 2005-2009  (1)
  • 1995-1999  (14)
  • 1975-1979  (5)
  • 1965-1969  (10)
  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Analytical chemistry 40 (1968), S. 2034-2035 
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 24 (1977), S. 0 
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. Electron microscope observations on Thelohania sp. in the shrimp Pandalus jordani support the view that the Golgi complex in Microsporida is a “classical” one, composed of vesicular, vacuolar, and cisternal components. During development of the sporoblast, a portion of the Golgi complex is seen as an electron-dense reticulum enmeshing the core of the polar filament. Associated with the reticulum are electron-dense bodies. The reticulum and “dense bodies,” reported in several previous publications, have not been well understood and have been given a variety of names. The evidence favors the view that these structures have secretory activity in which the reticulum concentrates or synthesizes material, some of which takes the form of membrane-bounded granules. It is suggested that the most appropriate name for the reticulum is “reticulum golgien,” and that the correct name for the “dense bodies” is the standard cytologic term, “secretion granules.” The secretion granules apparently remain in the posterior part of the spore, and may be stored there for some as yet undetermined use.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 53 (1975), S. 559-569 
    ISSN: 1432-1440
    Keywords: Renin ; Angiotensm ; Radioimmunoassay ; Standardisierung der Plasma-Renin-Messung ; Normalwerte der Plasma-Renin-Konzentration beim Menschen ; Renin ; angiotensin ; radioimmunoassay ; standardization of plasma renin measurement ; normal values of human plasma renin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary A new method for the measurement of renin in human plasma is described. The method is based on the introduction of the internationally available renin standard of the Medical Research Council (MRC) London, as a calibration system. Thus, some principal disadvantages of methods expressing results in renin reaction velocity (angiotensin generation rate) only are avoided. Both renins, unknown and standard, react with a sheep substrate preparation and are handled identically throughout the whole procedure including the angiotensin I radioimmunoassay (RIA). The plasma renin concentration (PRC) is given in 10−6 MRC-renin units (µU/ml). Results: the renin standard is free of angiotensin, angiotensinases, and angiotensinogen; it is stable on storage. Identical enzyme kinetics are shown for both renins. An interference between endogenous and exogenous substrate could be avoided. The potentially harmful influences of proteins from the enzyme incubation mixture on the RIA dose response curve are shown. The use of an angiotensin I calibration system could be omitted. Using a standard renin dilution from 250–0.9 µU/ml almost the full biological range is covered. When giving an unrestricted diet the preliminary normal values of PRC are 21.9±12.6 µU/ml in recumbent and 40.1±18.8 µU/ml in upright position (n=16,x±s, age 20–35 years). Earlier findings of age-dependancy of PRC were confirmed.
    Notes: Zusammenfassung Es wird eine neue Methode zur Messung von Renin in menschlichem Plasma beschrieben. Die Methode basiert auf der Einführung des Renin-Standards des Medical Research Council (MRC), London als Eichsystem und vermeidet damit die prinzipiellen Nachteile von Verfahren, die Renin nur als Angiotensinbildungsgeschwindigkeit erfassen. Prinzip der Methode ist es, Standard- und Plasma-Renin während der Enzymreaktion (mit Schafsubstrat) und während des Angiotensin I-Radioimmunoassays (RIA) identisch zu behandeln. Die Plasma-Renin-Konzentration (PRC) wird in 10−6 MRC-Renineinheiten (µU/ml) angegeben. Ergebnisse: Der Renin-Standard ist stabil und frei von Angiotensin, Angiotensinasen und Angiotensinogen. Er zeigt gleiche Enzymcharakteristika wie Plasma-Renin. Eine Interferenz von endo- und exogenem Substrat konnte vermieden werden. Mögliche, gravierende Störungen des RIA durch Proteine der Enzymreaktionsansätze wurden nachgewiesen. Eine Eichung über einen Angiotensin I-Standard kann vermieden werden. Bei Anwendung einer Standard-Renin-Verdünnung von 0,9–250 µU/ml wird nahezu der gesamte biologische Bereich erfaßt. Unter freier Kost betrugen die vorläufigen Normalwerte für 30–35jährige in Ruhe 21,9±12,6 µU/ml, nach Orthostase 40,1±18,8 µU/ml (x±s,n=16). Frühere Beobachtungen über eine Altersabhängigkeit der PRC wurden bestätigt.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Naturwissenschaften 56 (1969), S. 420-420 
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 35 (1979), S. 1285-1287 
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-0533
    Keywords: Meningitis ; C5a complement ; Macrophage ; Astrocyte
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Subarachnoidal application of the complement C5a fragment was used to induce acute experimental meningitis in rabbits and rats within 30–60 min. The early stages of the cellular inflammatory response were studied by means of flow cytometry, transmission electron microscopy and immunofluorescence microscopy. Infiltration of polymorphonuclear leukocytes (PMN) into the subarachnoidal space was the earliest event of the inflammatory reaction. By morphological criteria we found that PMN interacted with cells of the mononuclear-macrophage lineage (MML) and the marginal astrocytes via pseudopodia, whereas the pial cells were not involved in early stages of the inflammatory response. The number of invaded MML that were positive with the ED2 marker increased, indicating the hematogenous origin of the immigrating cell population. PMN were found to infiltrate the perivascular space of the marginal arterial vessel segments. This perivascular infiltration was assumed to be the first manifestation of cerebral vasculitis. The intimate association of resident cerebral cells (astrocytes) with invading PMN and MML is suggestive of a transient interaction of these cell types.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    [s.l.] : Macmillan Magazines Ltd.
    Nature 395 (1998), S. 449-450 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Pollen analysis is well established in palaeogeographical research,, but it remains an underused resource in forensic science,. So far it has been used to investigate only one reported case of murder, but has not to our knowledge been used to determine the time of death. We examined a common ...
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Zeitschrift für Rheumatologie 57 (1998), S. 37-40 
    ISSN: 0340-1855
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Zeitschrift für Rheumatologie 57 (1998), S. 50-52 
    ISSN: 0340-1855
    Keywords: Schlüsselwörter Ochronose ; Alkaptonurie ; Chronische Polyarthritis ; Key words Ochronosis ; alkaptonuria ; rheumatoid arthritis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Ochronosis is a rare disorder of tyrosin catabolism with an autosomal, recessive trait. Clinical signs predominantly affect the locomotor system. Inflammatory episodes in large joints can mimick Rheumatoid Arthritis (RA). Brownish discoloration of sclerae and cartilage is characteristic, diagnosis is confirmed by typical changes of spinal X-rays and the finding of homogentisic acid in urine samples. We describe a case of a 53 year old female patient with ochronosis and a second diagnosis of RA.
    Notes: Zusammenfassung Die Ochronose ist eine seltene, autosomal rezessiv vererbte Störung des Tyrosinabbaus. Ihre Symptome manifestieren sich überwiegend am Bewegungsapparat. Entzündungsschübe insbesondere an den großen Gelenken können eine Chronische Polyarthritis (CP) vortäuschen. Charakteristisch sind bräunliche Verfärbungen der Skleren und Knorpel, die Diagnose kann dann durch typische Röntgenveränderungen der Wirbelsäule und den Nachweis von Homogentisinsäure im Urin gesichert werden. Wir beschreiben den Fall einer 53-jährigen Patientin mit Ochronose und einer zusätzlichen CP.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-0533
    Keywords: Key words Meningitis ; C5a complement ; Macrophage ; Astrocyte
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Subarachnoidal application of the complement C5a fragment was used to induce acute experimental meningitis in rabbits and rats within 30–60 min. The early stages of the cellular inflammatory response were studied by means of flow cytometry, transmission electron microscopy and immunofluorescence microscopy. Infiltration of polymorphonuclear leukocytes (PMN) into the subarachnoidal space was the earliest event of the inflammatory reaction. By morphological criteria we found that PMN interacted with cells of the mononuclear-macrophage lineage (MML) and the marginal astrocytes via pseudopodia, whereas the pial cells were not involved in early stages of the inflammatory response. The number of invaded MML that were positive with the ED2 marker increased, indicating the hematogenous origin of the immigrating cell population. PMN were found to infiltrate the perivascular space of the marginal arterial vessel segments. This perivascular infiltration was assumed to be the first manifestation of cerebral vasculitis. The intimate association of resident cerebral cells (astrocytes) with invading PMN and MML is suggestive of a transient interaction of these cell types.
    Type of Medium: Electronic Resource
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