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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 49 (1971), S. 288-289 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Eine neue Methode zur röntgenologischen Darstellung des tracheobronchialen Systems wurde im Tierexperiment entwickelt. Dabei kam erstmals ein jodhaltiges, wasserlösliches Kontrastmittel in kristalliner Form als Staub-Luft-Gemisch zur Verwendung, welches durch assistierte Inhalation verabreicht wurde. Mit 5–8 g dieser Substanz konnte beim Schwein ein kontrastreicher, filmartiger Beschlag auf der Oberfläche des Tracheobronchialsystems erreicht werden. Bei diesem durch Inhalation gewonnenen Übersichts-bronchogramm werden auch kleine Konturunregelmäßigkeiten und -unterbrechungen erkennbar. Weitere Untersuchungen werden zeigen, ob diese Methode in der Diagnostik von Lungenerkrankungen beim Menschen anwendbar sein wird, und ob die Verwendung der Substanz in dieser Form zur Darstellung anderer Hohlorgane geeignet ist.
    Notes: Summary A new method of roentgenographic demonstration of the tracheo-bronchial system has been developed in animal experiments. For the first time, an iodine-containing water soluble contrast medium in crystalline form was used as dust-air mixture. It was applied by assisted inhalation. Five to eight grams of this substance were sufficient to produce a satisfactory contrast-positive layer coating on the surface of trachea and bronchi as far as third order bronchi. With this bronchogram obtained by inhalation, even small lesions of the bronchial wall can be shown. Further experiments are required to demonstrate the applicability of this method for the diagnosis of lung disease in man.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 149 (1990), S. 661-664 
    ISSN: 1432-1076
    Keywords: Bronchial asthma ; β-Adrenoceptors ; Polymorphonuclear leukocytes ; Adrenergics ; Theophylline
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The density (Bmax) and affinity (KD) of β2-adrenoceptors in polymorphonuclear leukocytes (PMN) were measured in 29 children and juveniles with mild or moderate asthma and in 25 healthy control subjects using the highly specific radioligand (±)-125I-cyanopindolol. No significant difference in Bmax was found between asthmatic subjects without medication and the control group. The asthmatic subjects were divided into four different groups by their actual medication: no medication, adrenergics, theophylline, adrenergics plus theophylline. Analysis of variance revealed highly significant differences between these groups for Bmax (P=0.0016) but not for KD. In asthmatics on adrenergic therapy Bmax was significantly lower (995±415) than in asthmatics without medication (1660±521;P=0.008). In contrast, Bmax in asthmatics on theophylline therapy was significantly higher (2137±231;P=0.009) than in the controls. Bmax was average in the group of asthmatics treated with both adrenergics and theophylline (1619±547). It is concluded that in asthmatic subjects therapy with theophylline increases the density of β2-adrenoceptors and partly prevents their down-regulation induced by adrenergic therapy.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 117 (2002), S. 2923-2933 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The formation of stationary concentration patterns that develop in the O2+H2 reaction on a microstructured Rh(110)/Pt surface predosed with potassium (θK(approximate)0.08) has been investigated with photoelectron emission microscopy and scanning photoelectron microscopy. The reaction was studied in the 10−7 and 10−6 mbar range between T(approximate)500–600 K on a Rh(110) surface onto which a square-shaped Pt domain of 70×70 μm2 size and 70 Å thickness had been deposited in UHV. Two types of Pt domains, one with pure Pt and one with Rh alloying, were prepared. The chemical state of the metallic substrate and of the adsorbate layers were characterized in situ by local (spot size 0.15 μm) photoelectron spectra of the Pt 4f, Rh 3d, K 2p and O 1s levels. Stationary concentration patterns consisting of K+O condensation islands of macroscopic size developed on both types of Pt domains under reaction conditions. On the alloyed Pt patch the formation of the large K+O condensation islands was associated with the reversible local segregation of Rh. The K+O condensation is interpreted as primary pattern forming process, while the segregation of Rh is a secondary process, which follows the distribution of oxygen resulting from the primary process. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 112 (2000), S. 5440-5446 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The initial stage of spreading of micron-sized MoO3 crystals deposited on a flat Al2O3 support have been studied by synchrotron radiation spectromicroscopy. The lateral resolution of 150 nm and the surface sensitivity of the microscope allowed us to detect submonolayer quantities of Mo–oxide, spread on the support in the vicinity of the MoO3 crystals after annealing in oxygen atmosphere. Detailed analyses of the Mo–oxide wetting the support have been performed combining chemical imaging with spectroscopy. The concentration of the spread Mo–oxide was quantified as a function of the distance from the MoO3 crystals. The determined concentration profiles were fitted to the analytical solution of an equivalent diffusion model for the MoO3 mass transport in dry oxygen at 630 K yielding a diffusion constant of D=7.8×10−11 cm2/s. The results are discussed in the framework of the possible mass transport mechanisms causing the spreading. The simple unrolling carpet was ruled out as an active process. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    European journal of neuroscience 11 (1999), S. 0 
    ISSN: 1460-9568
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Capsaicin (CAPS) as well as acidic pH induces Ca2+ influx in a subset of rat dorsal root ganglion neurons. Here we show that CAPS as well as three different approaches to induce experimental tissue acidification (phosphate buffered solution pH 5.4, CO2-gassed solution pH 6.1 and NPE-caged protons) yielded a transient heat sensitization of peripheral nociceptive terminals in rat skin in vitro. The heat sensitization induced by CAPS (1 μm) could be prevented by preloading the neurons with the neuroprotective calcium chelator BAPTA-AM (1 mm). However, this pretreatment had no effect on the sensitization following exposure to acidic solutions (pH 5.4 and pH 6.1). Therefore, the membrane-permeant proton buffer SNARF-AM (200 μm) was used together with BAPTA-AM in order to prevent changes in intracellular pH. Under these conditions heat sensitization by low pH did not occur. To investigate the underlying membrane mechanisms, current recordings together with simultaneous calcium measurements using FURA-2 were performed in neurons isolated from rat dorsal root ganglia. In a subset of these neurons, an increase in [Ca2+]i and concomitant facilitation of heat-activated ionic currents was observed after application of CAPS as well as pH 5.6. Rises in [Ca2+]i thus appear to play an essential role in plastic changes not only of central neurons but also of peripheral nociceptive terminals which may account for heat hyperalgesia.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    British journal of dermatology 89 (1973), S. 0 
    ISSN: 1365-2133
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Twenty-five patients with chronic discoid, acute guttate or erythrodermic psoriasis were treated with retinoic acid in various preparations, topical and oral, and the clinical response was observed for up to 3 months. Only four patients showed distinct clinical improvement. The possible side effects of topical retinoic acid therapy are mentioned.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    British journal of dermatology 85 (1971), S. 0 
    ISSN: 1365-2133
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: SUMMARY.— The term myiasis covers a group of diseases which are caused in man and other vertebrates by the larvae of dipterous insects. According to the localization of the larvae in the organism 2 main forms may be distinguished, internal and external myiasis. The dermal Tumbu- fly-myiasis occurs normally only in Equatorial Africa; but, with the increasing use of air travel, cases have been seen in Europe. The epidemiology, clinical features and treatment of this disease are discussed.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1398-9995
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: For screening atopy risk in 6401 (84%) of all infants born during the year 1990 in six obstetric departments of five German cities, cord-blood IgE values were determined with CAP-RAST-FEIA. After cases with elevated IgA values had been excluded, 25 % of the values were above the detection limit of 0.35 kU/1, and 8.5% were above 0.9 kU/1. Boys had significantly higher values than girls (P≤0.001). The distribution of values was significantly different for different nationalities of mothers (P≤0.001). The percentage of elevated values (≥0.9kU/l) increased significantly with the number of close family members with atopic history (P≤0.001). Regarding the atopic history of the father, siblings, and mother separately, only the mother's history had a significant association with the cord-blood IgE class (P≤0.001). The IgE values of 81 twin pairs correlated significantly with a coefficient of r = 0.4909 (P≤0.001). The smoking history of the parents during pregnancy showed an association with cord-blood IgE values (P≤0.02). No significant association could be shown between cord-blood IgE distribution and other variables, i.e., gestational age, birth size, birth modus, Apgar score, cord-blood pH value, neonatal problems, parity, age of the mother, medication during pregnancy, educational level of mother or father, time of year, or obstetric department. It is hypothesized that, in addition to some postpartum contamination or placental transfer of maternal IgE, cord-blood IgE values are also determined by the fetal immunologic reaction to intrauterine exposure to allergens and trigger factors, and by genetic influences.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Berlin, Germany : Blackwell Verlag GmbH
    Journal of applied ichthyology 21 (2005), S. 0 
    ISSN: 1439-0426
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Zander (Sander lucioperca) is one of the most important fish species in the German inland fishery. As a pelagic predator, zander is able to regulate populations of small cyprinids and perch and is therefore used in ‘top-down’ projects to directly control the food web. At present, natural waters are mainly stocked with one-summer-old zander from pond hatcheries; however, such fish are poor stocking material due to low survival rates, presumably because of their small size. Two groups of 50-day-old zander fingerlings reared in a recirculation system (T = 23 °C) were used. For 90 days one group (FG 1) was fed with a commercial dry feed (Trouvit Pro Aqua Brut), and the other group (FG 2) was fed with chironomides (Chironomus spp.). The fat content of the dry feed was increased with fish oil supplemented up to 22%. After the rearing period the FG 1 fishes attained the largest size and fat content. A pond with a surface of 667 m2 and a mean depth of 0.8 m was stocked with 24-tagged zander (12 of each feeding group) for wintering. After the winter period of 176 days, survival rate of each feeding group was 83.3%. The fatty acid composition in the membrane lipids of group 2 changed dramatically. In contrast to previous investigations, presented results indicate that the survival rate is not influenced by fish size (weight and length). The crucial factors for high survival rates of zander during wintering are the crude tissue fat content (〉5%) and its fatty acid composition.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1365-2133
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Atopic dermatitis (AD) is a clinically characteristic, chronic inflammatory skin disease of unknown origin. IgE-mediated uptake and antigen focusing of environmental allergens by dendritic cells (DCs) is assumed to be a central immunopathogenetic event. A so-called intrinsic type of AD (IAD) has been delineated from the more common extrinsic AD (EAD) by normal serum IgE levels, negative RAST tests and negative immediate-type skin reactions towards environmental allergens. The recently characterized human autoantigen Hom S 1 has been proposed to play a part in the pathogenesis of IAD. Objectives To compare clinical and laboratory data between patients with IAD and EAD, and to investigate potential differences in the inflammatory micromilieu of the epidermal compartment in IAD and EAD lesions. Methods Epidermal DC phenotyping, a recently validated technique based on the three-colour flow cytometric analysis of Langerhans cells and the so-called inflammatory dendritic epidermal cells from epidermal single-cell suspensions, was performed on samples from 69 patients with AD (seven with IAD and 62 with EAD) and 94 controls. Results Patients with EAD tended to have an earlier onset of disease but similar disease duration and family history of atopic diseases. Quantitative analysis of CD36 expression on DCs as a marker of inflammation, as well as the percentage of inflammatory dendritic epidermal cells in the CD1a+ epidermal DC pool, indicated a comparable disease activity in IAD and EAD. EAD was characterized by a significantly higher FcεRI expression on the CD1a+ epidermal DCs than IAD. Using the FcεRI/FcγRII expression ratio as a disease marker for AD, values for IAD fell below the diagnostic cut-off level of 1·5 for this ratio. Conclusions While IAD is clinically similar to EAD, the inflammatory microenvironment in this condition seems different from classical EAD and can be distinguished by phenotyping of epidermal DCs.
    Type of Medium: Electronic Resource
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