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  • 11
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The two measurements of the process γ+p→π0+p at the Bonn 500 MeV electron synchrotron are discussed and after correction of systematic deviations combined to one set of data. A comparison with other measurements and theoretical calculations is given.
    Type of Medium: Electronic Resource
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  • 12
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 26 (1970), S. 402-403 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The inhibition of AChE by Paraoxon is overcome by the application of the oximes 2-PAM, Toxogonin® and HS 3. Soman inhibited AChE is affected only to a limited extent by HS 3 and HS 9.
    Type of Medium: Electronic Resource
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  • 13
    Electronic Resource
    Electronic Resource
    Springer
    Naturwissenschaften 58 (1971), S. 363-363 
    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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  • 14
    Electronic Resource
    Electronic Resource
    Springer
    Polar biology 12 (1992), S. 341-348 
    ISSN: 1432-2056
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Stable carbon isotope composition of macroalgae collected at King George Island (Antarctica) ranged from about -8‰ to -34‰. We hypothesize that the δ 13C values are related to the depth distribution: species inhabiting greater depth had much lower values (around-30‰) compared to species from shallower waters (around -17‰). Isotopic studies on sediment trap samples from the King George Basin (2,000 m deep) revealed that benthic macroalgae contributed strongly to the total organic carbon pool of the deeper basin waters during austral spring and summer. Fragments of brown macroalgae (Desmarestiales) were detected in microscopical analyses of semi-thin sections of sediment samples from the Bransfield Strait. Possible mechanisms regarding the erosion of benthic macroalgae and their transport to the deeper waters and to the sediment are summarized.
    Type of Medium: Electronic Resource
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  • 15
    ISSN: 1432-2307
    Keywords: L-pyruvate kinase ; M2-pyruvate kinase ; Kidney neoplasms ; Carbohydrate metabolism ; Immunohistochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Using immunohistochemical and enzyme biochemical methods we investigated the expression of L- and M2-pyruvate kinase (PK) in normal renal tissue, renal cell carcinomas (RCCs; of clear cell, chromophilic cell and mixed cell type) and RCC metastases. L-PK was expressed in the proximal tubules of normal renal tissue and, to a variable extent, in 23/25 primary RCCs, in 1 RCC recurrence and in 10 RCC metastases. Staining intensity and percentage of stained tissue did not correlate with tumour grade. One renal oncocytoma and all extrarenal malignancies examined lacked L-PK immunoreactivity. M2-PK was mainly expressed in the distal tubules of the normal kidney and was found in all renal tumours as well as extrarenal malignancies. Quantitative biochemical investigations yielded a two- to seventeen-fold increase in PK activity in RCCs compared to the normal renal cortex taken from the same patient, whereas fructose-1,6-bisphosphatase and cytosolic glycerol-3-phosphate dehydrogenase activity was dramatically lower in RCCs. Otherwise, the activity of all other enzymes investigated (glucose-6-phosphate dehydrogenase, enolase and lactate dehydrogenase) was not significantly changed in the RCCs. The immunocytochemical results suggest that L-PK is a useful marker for RCC and its metastases, if acetone-fixed tissue is available. The quantitative changes of the concentration of PK and other enzymes in RCCs when compared with normal renal tissue probably reflect metabolic alterations related to tumour growth.
    Type of Medium: Electronic Resource
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  • 16
    Electronic Resource
    Electronic Resource
    Springer
    Anatomy and embryology 184 (1991), S. 345-353 
    ISSN: 1432-0568
    Keywords: Human embryo ; Lectins ; Spine ; Vertebral development
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Paraffin sections from vertebral columns of ten human embryos and fetuses ranging from stage 16 to the 12th week were stained with the FITC-coupled lectins PNA, RCA I, Con A and WGA in order to investigate changes in carbohydrate-binding sites during vertebral development. PNA revealed a specific binding site in the vertebral body blastema in the precartilaginous stage of development. Beginning with the 25-mm CRL embryo, PNA-binding sites occurred in the developing fibrous annulus and the inner zone of the intervertebral discs. The first binding sites for RCA I were seen in the extracellular matrix of vertebral bodies during the cartilaginous stage of vertebral development. During early ossification of the vertebrae, staining for RCA I-binding sites in the cytoplasm of the chondrocytes and the area around the future cartilaginous end-plates was observed. Con A bound to the chondrocyte cytoplasm, and also very strongly to notochordal cells in all developmental stages examined. WGA-binding sites appeared simultaneously with cartilage formation. Connective tissue components, e.g. ligaments, were diffusely stained by WGA. Also this lectin showed an affinity for vertebral body chondrocytes. We discuss the biochemical aspects of these lectin-binding sites, and their possible roles in the differentiation process of the human vertebral column. The results of this first lectin histochemical study on human vertebral development are compared with related results in other species.
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  • 17
    ISSN: 1432-055X
    Keywords: Schlüsselwörter: Fourniersche Gangrän – Sepsis – Schock ; Key words: Fournier's gangrene – Septic shock
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Abstract. Fournier's gangrene is a necrotising soft-tissue infection of the scrotum and perineal region caused by gram-negative and gram-positive Enterobacteriaceae. The disease is characterised by its unique appearance, its speed of onset, and its high mortality. Case report. A 26-year-old male presented to the emergency room complaining of a painful, tremendously swollen scrotum and penis (Fig. 1) that had developed within the past 24 h. Later, slurred speech, pallor, and hypotension were recognised, leading to the patient's admission to the intensive care unit. Suspecting a severe internal haemorrhage, vigorous volume therapy was started using crystalloids and colloids until blood and fresh frozen plasma were available. One hour later, septic shock was presumed and therapy augmented by IV antibiotics, tracheal intubation, and mechanical ventilation. Despite all efforts, the patients condition deteriorated rapidly and he died a few hours later due to multiple organ failure in septic shock. Postmortem, a perforated external hemorrhoidal node was found to be the primary focus of sepsis. Microbiologic cultures revealed Escherichia coli in blood and tissue samples. Discussion. Fournier's gangrene is a rare disease; nevertheless, its clinical picture has to be recognised immediately in order to provide appropriate treatment in time. It occurs predominantly in males after minor trauma, colorectal or urological disease, and perineal or abdominal surgery. Fournier's gangrene usually begins with itching and pain in the scrotal region followed by swelling and dark-blueish discolouration of the scrotum and penis, occasionally including the lower abdominal wall. Fever and chills are usually present. The illness progresses to severe prostration and septic shock with a mortality of 20% – 50%. Tissue cultures mostly reveal E. coli, gram-positive enterococci, Pseudomonas, Proteus, and various anaerobes. The treatment should include immediate radical surgical debridement, IV administration of broad-spectrum antibiotics, and cardiopulmonary support. Conclusion. The dramatic course of Fournier's gangrene requires early recognition, extensive surgical debridement, as well as intensive care treatment in order to prevent irreversible septic shock.
    Notes: Zusammenfassung. Die Fourniersche Gangrän manifestiert sich meist bei Männern mittleren bis höheren Lebensalters als nekrotisierende Fasciitis des äußeren Genitales. Kennzeichnend sind eine typische Anamnese mit progredienter, schmerzhafter Hodenschwellung und Fieber, ein oft explosionsartiger Beginn, der kaum verwechselbare makroskopische Aspekt und die hohe Mortalität infolge septischer Komplikationen. Der unter Umständen dramatische Verlauf der Erkrankung erfordert ein invasives chirurgisches und intensivmedizinisches Vorgehen. Die Entscheidung hierzu setzt die rasche Diagnose des seltenen Krankheitsbilds voraus. Wir berichten über einen jungen Patienten mit Fournierscher Gangrän, der wenige Stunden nach Aufnahme ins Krankenhaus an einem foudroyant verlaufenden septischen Schock verstarb.
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  • 18
    ISSN: 1432-0584
    Keywords: Granulocyte-macrophage colony-stimulating factor (GM-CSF) ; Granulocyte surface receptors ; Therapy monitoring
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In vitro activation of human granulocytes leads to altered expression of distinct surface antigens. Compared with the changes observed with classic activating reagents such as the phorbol ester PMA similar, but less pronounced alterations of surface antigen expression were observed upon granulocyte activation with human recombinant granulocyte-macrophage colony-stimulating factor (hrGM-CSF). In particular, stimulation with hrGM-CSF is followed by an enhanced expression of the complement receptors CD35 (CR1) and CD11b (CR3) while the low affinity Fc-γ receptor CD16 (FcRIII) is downregulated. In order to investigate whether there are similar effects under in vivo conditions, we studied the granulocytes from patients undergoing rhGM-CSF therapy before, during, and after treatment. We found a marked increase in CD35 (CR1) and CD11b (CR3) expression and a substantial decrease or even loss of CD16 (FcRIII) on these granulocytes. These changes correlated well with our in vitro data and occurred extremely rapidly after therapy onset. Furthermore, therapy monitoring using ratios calculated by the mean fluorescence channel numbers of CR and FcRIII stainings may combine the advantage of high sensitivity with high reproducibility as a result of the contrasting change in CR and FcRIII expression during granulocyte activation. Being nonparametric values, such ratios are not influenced by individual flow cytometry standardization. Taken together, these activation-associated changes of surface receptor expression and especially of CR over FcRIII ratios are useful parameters for monitoring the in vivo effects of rhGM-CSF.
    Type of Medium: Electronic Resource
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  • 19
    Electronic Resource
    Electronic Resource
    Springer
    Surgical and radiologic anatomy 15 (1993), S. 131-137 
    ISSN: 1279-8517
    Keywords: Sacroiliac joint ; Computed tomography ; Secondary ossification centres ; Os sacrum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Des formations osseuses apparemment bilatérales, de formes et tailles différentes, localisées dans les parties antéro-supérieures et inférieures des articulations sacroiliaques, ont été observées sur les images de coupes axiales de la région pelvienne chez des patients jeunes. Aucune autre modification pathologique n'a été notée au niveau des articulations sacro-iliaques de ces individus. Chez l'un des patients, les structures osseuses pouvaient aussi être observées sur les radiographies standard. Nous avons aussi étudié cette articulation chez 3 sujets anatomiques juvéniles, par la radiographie, la TDM, l'étude macroscopique et histologique. Chez deux d'entre eux des formations osseuses semblables à celles observées chez les patients jeunes pouvaient être détectées sur les coupes TDM. Les recherches macroscopiques ont montré que ces structures étaient des points d'ossification secondaires localisés dans le cartilage articulaire de la partie latérale du sacrum en regard du 1er et du 3e segments sacrés. Si l'on se réfère à une littérature anatomique plus ancienne, ces points d'ossification épiphysaires contribuent à la surface auriculaire de la partie latérale du sacrum et à la surface libre latérale des parties caudales du sacrum. Ils peuvent être observés entre 12 et 25 ans et commencent à fusionner avec les parties latérales aux environs de la 18e année. Sur les bassins osseux provenant de pièces juvéniles conservées, les ossicules libres n'ont pas pu être décelés dans la région des articulations sacroiliaques. Les particularités histologiques du processus d'ossification observé sont discutés. Ces points d'ossification physiologiques doivent être distingués des altérations pathologiques apparaissant au scanner comme des structures osseuses ou assimilées.
    Notes: Summary Bilateral apparently bony structures of different forms and sizes located in the inferior and superior ventral parts of the sacroiliac joints were observed on axial CT images of the pelvic region of juvenile patients. No other pathological changes were noted in the sacroiliac joints of these individuals. In one patient the bony structures could also be seen on a conventional plain radiograph. We also examined 3 juvenile autopsy specimens of this joint using radiology, CT, macroscopical evaluation and histology. In two of them, structures could be detected on the CT scans which were similar to those observed in the young patients. Macroscopic investigations revealed the structures to be secondary ossification centres located in the articular cartilage of the lateral part of the os sacrum at the levels of the first and third sacral segments. According to older anatomical literature, these epiphysial ossification centres contribute to the auricular surface of the lateral part of the os sacrum and the free lateral surface of the inferior sacral parts. They can be observed between the ages of 12 and 25 years and begin to synostose with the lateral part around the age of 18 years. In macerated juvenile specimens of the bony pelvis, free ossicles were not detectable in the region of the sacroiliac joints. Histological peculiarities of the ossification process observed are discussed. These physiologically occurring ossification centres are to be differentiated from pathological alterations appearing as bony or bone-like structures on CT scans.
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  • 20
    Electronic Resource
    Electronic Resource
    Springer
    Journal of cancer research and clinical oncology 82 (1974), S. 143-152 
    ISSN: 1432-1335
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Eine der wesentlichsten Ursachen des Onkolysephänomens durch den Clostridienstamm M55 dürfte in der Produktion von Kininasen zu finden sein, welche von den vegetativen Stäbchen in die Umgebung abgegeben werden und einen Mangel an Kinin in den Kapillargefäßen des Tumors erzeugen. Versuche mit Ellagsäure im Zusammenwirken mit den Clostridiem-Sporen den Kininmangel im Tumorgewebe zu verstärken und dadurch die Onkolyseergebnisse zu verbessern, verliefen ermutigend. Ellagsäure aktiviert den Hageman-Faktor und setzt aus Plasma Kinine frei. An soliden Yoshida Tumoren von Ratten, welche mit Ellagsäure und Sporen behandelt wurden, traten eindeutig diagnostizierbare Lyseergebnisse auf. Dagegen bewirkte alleinige Sporengabe kein Lysen. Die Ergebnisse eröffnen die Möglichkeit, die am Menschen bereits erzielten therapeutischen Erfolge mit Clostridium M55 durch gleichzeitige Anwendung von Pharmaka mit Wirkung auf das Kinin-bildende System positiv beeinflussen zu können.
    Notes: Summary One of the most important causes of the phenomenon of oncolysis by the Clostridium strain M55 may be the release of kininases by the vegatative rods into the environment, resulting in a kinin deficiency in the capillaries of the tumor. Experiments with ellagic acid have been successful in potentiating the deficiency of kinin produced by the spores of Clostridium M55 in malignant tissue, thereby improving oncolysis. Ellagic acid activates the Hageman factor and liberates kinin from the plasma. Solid Yoshida tumors in rats that were treated with ellagic acid and spores showed definite recognizable lysis. The application of spores alone produced no lytic effects. The results open the possibility of successfully treating humans with Clostridium M55 and simultaneously with agents that have an influence on the kinin forming system.
    Type of Medium: Electronic Resource
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