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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 52 (1974), S. 651-653 
    ISSN: 1432-1440
    Keywords: Dystrophy ; cerebral damage ; alpha-oxydation ; phytanic acid ; Refsum's disease ; Dystrophie ; Hirnschaden ; alpha-Oxydation ; Phytansäure ; Refsum-Krankheit
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung In Serum und Leber eines Kleinkindes mit unklarem Hirnschaden konnten größere Mengen von 3,7,11,15-Tetramethylhexadecansäure (Phytansäure) nachgewiesen und mittels Gaschromatographie und Massenspektroskopie (GCMS) identifiziert werden. Unter den Fettsäuren der Serumtriglyceride betrug ihre Konzentration maximal 8,5%. Bisher wurde Phytansäure nur bei der Heredopathia atactica polyneuritiformis (Refsum-Krankheit) vermehrt gefunden, für die ihre Speicherung pathognomonisch ist. Unser Patient weist die charakteristischen Symptome der Refsum-Krankheit nicht auf. Es handelt sich damit um den ersten Fall einer Phytansäurespeicherung, ohne daß eine Refsum-Krankheit vorliegt.
    Notes: Summary Considerable amounts of 3,7,11,15-tetramethylhexadecanoic acid (phytanic acid) could be identified by gasliquid chromatography and mass spectrometry (GCMS) in serum and liver of an infant with cerebral damage of unknown etiology. The concentration of phytanic acid in serum triglyceride fatty acids was 8.5%. Up to now, increased levels of phytanic acid was found only in heredopathia atactica polyneuritiformis (Refsum's syndrome) for which it's occurrence was considered pathognomonic. Our patient does not exhibit the typical symptoms of Refsum's disease and represents the first case of phytanic acid storage without heredopathia atactica polyneuritiformis.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Il nuovo cimento della Società Italiana di Fisica 11 (1989), S. 123-139 
    ISSN: 0392-6737
    Keywords: Heat capacities of liquids ; Functional analytic methods
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto Si presentano i risultati di una formulazione basata sugli integrali di cammino applicata alla termodinamica di un sistema a due stati accoppiato agli elettroni di conduzione. Si mostra che l'usuale approssimazione di un gas diluito di «bounce» è inadeguata nel caso di debole smorzamento e basse temperature e si presenta pertanto un'appropriata generalizzazione. Il modo di valutare esattamente la funzione di partizione di un sistema a due stati debolmente smorzato è quello di generalizzare un singolo «bounce» a una classe di insiemi irriducibili di «bounce» multipli con interazioni interne e di considerare questi insiemi come un gas diluito. Si ricavano le espressioni per la funzione di partizione e per il calore specifico. Si discute anche il caso di un sistema a due stati in presenza di moderata asimmetria.
    Abstract: Резюме Приводятся результаты применения метода интегрирования по траекториям к термодинамике системы с двумя состояниями, связанной с электронами проводимости. Показывается, что стандартное приближение разжиженного газа не является адекватным для слабого затухания и при низких температурах. Предлагается соотаетствующее обобщение. Для выписления функции распределения для слабо затухающей системы с двумя состояниями необходимо обобщение рассматриваемого приближения для класса неприводимых кластеров с внутренними взвимодействиями, в затем рассматривать эти кластеры, как разжиженный газ. Приводятся количественные выражения для функции распределения и для удельной теплоёмкости. Так же обсуждается случай смещения.
    Notes: Summary The results of a path integral approach to the thermodynamics of a two-state system coupled to conduction electrons are presented. It is shown that the standard dilute bounce gas approximation is inadequate for weak damping and low temperatures and the appropriate generalization is presented. The strategy to evaluate exactly the partition function of a weakly damped two-state system is to generalize a single bounce to a class of irreducible multibounce clusters with internal interactions and to consider these clusters as a dilute gas. Quantitative expressions for the partition function and for the specific heat are presented. The case of a bias is also discussed.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Journal of Biochemical and Biophysical Methods 29 (1994), S. 83-86 
    ISSN: 0165-022X
    Keywords: Helianthus annuus ; Immunolabeling ; MACS ; Membrane tagging ; Protoplast
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of applied ichthyology 6 (1990), S. 0 
    ISSN: 1439-0426
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The effect was examined of chronic exposure of young rainbow trout (Oncorhynchus mykiss Kendall) to a herbicide, N'-(3,4 dichlorophenyl)-N-methoxy-N-methylurea (Linuron).Three groups of fish were exposed to concentrations of Linuron of 30 ng/ml, 120 ng/ml and 240 ng/ml. The control grou was kept under identical conditions except that no Linuron was added to the aquarium water. At the end of the experiment blood was drawn by cardiac puncture. The isolated leukocytes were incubated over 2 hours with fluorescent plastic beads at either 4°C or 20°C. As a functional parameter, the percentage of cells that had taken up more than one particle was evaluated by flowcytometry. At a concentration of Linuron of 30 ng/ml the phagocytotic activity was lowest both at 4°C and at 20°C. With increasing herbicide concentration the percentage of phagocytic cells increased again.〈section xml:id="abs1-2"〉〈title type="main"〉RésuméActivité phagocytaire comme test des effects de Linuron, un herbicide, sur la truite arc-en-ciel pendant une exposition chroniqueL'effet de l'exposition chronique á l'herbicide N'-(3,4 dichlorphenyl)-N-methoxy-N-methyluéte (Linuron), a été examiné chez des truites arc-en-ciel (Oncorhynchus mykiss, Kendall) jeunes. Trois groupes de poissons ont iti soumis sà des concentrations de Linuron de 30 ng/ml, 120 ng/d et 240 ng/ml endant 35 jours. Le groupe contrde a été soumis aux mêmes conditions, en omettant le Linuron dans l'eau de l'aquarium. A la fin de l'expérience, le sang a été recueilli par ponction cardiaque. Les leucocytes isolés ont été incubés pendant deux heures avec des billes de plastique fluorescentes sà 4° ou sà 20°C. Le pourcentage de cellules ayant phagocyté plus d'un particule (paramètre fonctionnel), a été calculé par cytométrie de flux. A une concentration de Linuron de 30 ng/ml, l'activité phagocytaire était la plus basse non seulement sà 4°C mais encore sà 20°C. Le pourcentage de cellules phagocytaires augmentait aux concentrations de l'herbicide plus élevées.〈section xml:id="abs1-3"〉〈title type="main"〉ZusammenfassungPhagozytoseaktivitát als ein in vitro-Test für die chronischen Wirkungen von Linuron auf Regenbogen forellenEs wurde der Effekt einer chronischen Behandlung mit einem Herbizid (N'-(3,4 dichlorphenyl)-N-methoxy-N-methylharnstoff, Linuron) auf junge Regenbogenforellen (Oncorhynchus mykiss, Kendall) untersucht. Drei Fischgruppen wurden über 35 Tage Linuronkonzenuatioden von 30 ng/ml, 120 ng/ml oder 240 ng/ml im Hälterwasser ausgesetzt. Die Kontrollgrupe wurde unter gleichen Bedingungen ohne Herbizidzugabe gehältert. Am Versuchsende wurde dn Fischen mittels Herzpunktion Blut enmommen. Die aus diesem Blut isolierten Leukozyten wurden für 2 h zusammen mit fluoreszierenden Partikeln entweder bei 4°C oder 20°C inkubiert. Als funktioneller Parameter wurde der Prozentsatz der Zellen die mehr als ein Partikel phagocytiert hatten mittels Durchfluißcytometrie ermittelt. Es zeigte sich, daß bei 30 ng Linuron pro ml Wasser sowohl bei 4°C als auch bei 20°C die geringste Phagocytose-rate meßbar war. Mit steigender Herbizidkonzentration nahm dann die Phagocytose wieder zu.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of applied ichthyology 13 (1997), S. 0 
    ISSN: 1439-0426
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The main blood parameters of the swordtail, Xiphophorus helleri, were studied. Morphology, granulation staining and cytochemistry of leucocytes in peripheral blood, kidney, spleen and gills were investigated by light microscopy. Blood parameters are similar to other fish species: Red blood cell count (4.5 × 106μl), white blood cell count (15.2 × 103μl), haema-tocrit (33.8%) haemoglobin (7.8 mg ml−1), MCV (mean corpuscle volume, 75.1 μm3). MCH (mean content of haemoglobin, 17.3 pg), MCHC (mean percentage haemoglobin/erythrocyte, 23.1%/100 ml erythrocytes). Leucocytes can be classified into lymphocytes, thrombocytes, neutrophilic and eosinophilic gra-nulocytes, monocytes macrophages and melanomacrophages.Morphological and cytochemical features of the cells are described and compared with results from other fish species.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of applied ichthyology 3 (1987), S. 0 
    ISSN: 1439-0426
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Murine monoclonal antibodies against characteristic determinants of heat stable somatic antigens of typical serovar I (820/15/8 Kop) and serovar II (134/82/1 Kiel) of European Vibrio anguillarum strains were produced. Three stable hybridoma cell lines, called aVaI/1F4, aVaI/6F4 and aVaI/2H5, produced monoclonal antibodies each against a typical serovar I determinant of strain 820/15/8 Kop.One hybridoma cell line (aVaII/5A4) producing monoclonal antibodies against Vibrio anguillarum strain 134/82/1 Kiel (serovar. II) was established. Fourteen Vibrio strains and Aeromonas salmoniáda strains were serologically compared by Enzyme-Linked Immunosorbent Assay (Elisa).
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of applied ichthyology 13 (1997), S. 0 
    ISSN: 1439-0426
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The quantitative determination of blood cells in the kidney of swordtail, Xiphophorus helleri, was determined by light microscopical observations. Lymphocytes/thrombocytes and neutro-philic granulocytes (32.4 and 31.6%, respectively) represent the main blood cells in kidney. High amounts of blastic cells in different mitotic phases indicate the role of the kidney as a major haematopoietic organ in this fish species. Additionally, a good and reproducible method for the isolation of accessory and immunoreactive cells was developed using density gradient centrifugation.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1439-0426
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The morphology of blood cells in the kidney and spleen of Xiphophorus helleri was characterized by electron microscopy. Erythrocytes, thrombocytes, lymphocytes, granulocytes and monocytes/macrophages were identified. Thrombocytes were elongate and contained bundles of microtubules and a canalicular system. Lymphocytes were heterogeneous in morphology. Granulocytes were divided into two types, based on the light microscopic results, which were extended by the present electron microscopic study. Neutrophils and eosinophils differed in abundance, cell shape, morphology of the nucleus and granula. Neutrophils displayed a spherical to three-lobulated nucleus and different types of granula. Several intermediate forms of granula were observed. The complement of granules displayed a different composition in the cells. These findings suggest a maturation process of a single type of granulum rather than several types. Eosinophils also contain different types of granula, described as G1–G4. The cell shape was variable and nuclei were small and eccentric. Monocytes and macrophages frequently showed autophagocytotic figures. A peroxidase reaction was observed only in the granula of neutrophils.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' Zeitschrift für analytische Chemie 59 (1920), S. 494-496 
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Parasitology research 73 (1987), S. 568-570 
    ISSN: 1432-1955
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
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