Bibliothek

X
feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
  • 1
    Digitale Medien
    Digitale Medien
    The Expression of CR1 and CR3 on Non-Modulated and Modulated Granulocytes of Healthy Blood Donors as Measured by Flow Cytofluorometry (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 28 (1988), S. 0 
    Details
    ISSN: 1365-3083
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Complement receptors, CR1 and CR3, on neutrophils increase their cellular spontaneously at 37°Cor after mechanical stress during the cell preparation. We have established a cell preparation procedure and a cytofluorometric immunoassay method to evaluate the receptor expression in vivo in this study. The expression of CRI and CR3 was studied after haemolysis in NH4C1 at different temperatures and incubation intervals. It was shown that cell preparation and receptor analysis must be performed at 15°C or lower to avoid up-regulation of the receptor structures. Two minutes' Incubation at 20°C was sufficient to modulate the cells in this regard. Granulocytes from healthy blood donors were analysed and the mean fluorescence intensity (MF1), which reflects the number of receptors on (he ceil surface, showed a normal distribution for the CRI (n=158) and CR3 (n=76) expression in the healthy population. The MFI of the two receptors showed a correlation (r=0.71). Granulocytes from all donors could be modulated at 37°C to a similar degree for both receptors (r=0.76), despite the fact that they are supposed to be mobilized from different intracellular pools. A group of patients with localized inflammatory processes, such as sinusitis, differed from the healthy controls. In this group, the CR1 expression was not normally distributed, but IS out of 26 patients (58%) had granulocytes with a CR1 expression exceeding the mean±SD of the normal population.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-3083.1988.tb01458.x
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 2
    Digitale Medien
    Digitale Medien
    A case of allergy to cow's milk hydrolysate (1999)
    Copenhagen : Munksgaard International Publishers
    Allergy 54 (1999), S. 0 
    Details
    ISSN: 1398-9995
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: We here report a girl, now 3 years old, who has suffered from severe food allergy since her first year of life. She was strongly allergic to cow's milk, and had high levels of IgE antibody (AB) to casein (210 kU/l), β-lactoglobulin (43 kU/l), and α-lactalbumin (23 kU/l) at 12 months of age. In addition, at the same age, she showed positive (2–4+) skin prick reactions to both unboiled and boiled formulas (Profylac, Nutramigen, and Neocate), besides being positive in RAST to Nutramigen (0.6 kU/l). During the first 3 years, IgE Ab levels against casein and Nutramigen increased to 310 and 1.6 kU/l, respectively. Furthermore, at 3 years of age, she had positive RAST to 14 of 15 tested food allergens, being negative only to codfish. Assessment of eosinophil-related markers revealed high total eosinophil count, increased eosinophil activity, and a low ratio of interferon (IFN)-γ:IL-5, indicating enhanced IL-5 production. The food allergy was correlated to poor weight gain and increasing problems with atopic allergy in the airways.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1034/j.1398-9995.1999.00236.x
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 3
    Digitale Medien
    Digitale Medien
    Counts of activated blood eosinophils for monitoring asthma (1993)
    Oxford, UK : Blackwell Publishing Ltd
    Allergy 48 (1993), S. 0 
    Details
    ISSN: 1398-9995
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: The FOG method is a new cell membrane permeabilization technique which makes it possible to identify the eosinophils in unseparated peripheral blood and allows analyses of both surface and intracellular antigens by flow cytometry. This technique has been adapted to analyse eosinophil activity in peripheral blood from asthmatic patients by measuring the expression of the EG2-epitope on intracellular ECP.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1398-9995.1993.tb04707.x
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 4
    Digitale Medien
    Digitale Medien
    The effect of immunotherapy on T-cell subsets in peripheral blood and bronchoalveolar lavage fluid in pollen-allergic patients (1993)
    Oxford, UK : Blackwell Publishing Ltd
    Allergy 48 (1993), S. 0 
    Details
    ISSN: 1398-9995
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: The effect of immunotherapy (IT) on T-cell subsets in peripheral blood and bronchoalveolar lavage fluid (BAL) was examined in 15 patients with rhinoconjunctivitis and asthma caused by sensitivity to birch pollen. They were treated with IT for 3 years. Seven patients were treated with highly standardized birch-pollen extract (Pharmacia, Sweden). Eight untreated patients served as controls. Histamine challenge, blood sampling, and BAL were performed before (January, February), and at the peak of, the birch-pollen season (May). The subpopulations of T cells in peripheral blood and BAL fluid were investigated by immunocytochemistry and flow cytometry. During the birch-pollen season, the percentage of CD3+ and CD4+ cells of blood mononuclear cells in the IT patients increased significantly (P〈0.03 and P〈0.02, respectively). The percentage of CD8 + cells remained unaltered. In control patients, no changes of T-cell subsets in the peripheral blood were observed. T-cell subsets in BAL did not change during the season in relation to preseasonal values for either IT-treated or non-IT-treated patients.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1398-9995.1993.tb00745.x
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 5
    Digitale Medien
    Digitale Medien
    Monocyte and Neutrophil Adhesion to Matrix Proteins is Selectively Enhanced in the Presence of Inflammatory Mediators (1996)
    Oxford, U.K. and Cambridge, USA : Blackwell Science Ltd
    Scandinavian journal of immunology 44 (1996), S. 0 
    Details
    ISSN: 1365-3083
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: The authors investigated the time course of monocyte and neutrophil adhesion to fibronectin, vitronectin and albumin precoated culture wells, using mixed leucocyte populations from healthy blood donors. Moreover, the influence of chemotactic agonists on the adhesion properties as well as the quantitative expression of CD29, CD11b/CD18 and CD61 was analysed by flow cytometry. Different chemotactic agonists were used representing a classical chemotactic agonist (fMLP), and agonists with a preferential effect on monocytes (RANTES) and neutrophils (IL-8), respectively. The authors found a gradual increase in monocyte and neutrophil adhesion to all three surfaces, reaching a plateau at 15 min of incubation. Adhesion to fibronectin was significantly higher at all time points (5, 15 and 60 min, respectively) compared with vitronectin and albumin in both monocytes and neutrophils. Neutrophil adhesion to vitronectin was significantly lower at 60 min compared with 15 min. Monocyte adhesion to albumin was increased by fMLP and RANTES and to vitronectin also by IL-8. Neutrophil adhesion to albumin and vitronectin was increased by fMLP and IL-8, but not RANTES. The adhesion to fibronectin was not altered by any of the chemotactic agonists used. The quantitative levels of CD11b/CD18, but not CD29 and CD61, was increased by fMLP, but not RANTES nor IL-8. The authors conclude that the adhesion of human monocytes and neutrophils to vitronectin and albumin, but not fibronectin, is selectively enhanced by chemotactic agonists and may contribute to the selective accumulation of different leucocyte subsets at the inflammatory site.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-3083.1996.d01-296.x
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 6
    Digitale Medien
    Digitale Medien
    Purification, Fractionation and Assay of Antibody-Dependent Lymphocytic Effector Cells (K Cells) in Human Blood (1976)
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 5 (1976), S. 0 
    Details
    ISSN: 1365-3083
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Abstract. In this article we present methods for the purification and fractionation of human blood lymphocytes, which have been used in our laboratory to characterize antibody-dependent cytotoxic effector cells (K cells). The assay system consists of highly purified lymphocytes, 51Cr-labelled chicken erythrocytes (Ec) and IgG rabbit anti-Ec in high dilutions. Various ways of comparing K-cell potentials of different lymphocyte preparations in this system are discussed. When purified lymphocytes are partially depleted (60-85% depletion) of cells forming rosettes with sheep erythrocytes (E+ cells), the K-cell activity of the depleted fraction is increased, indicating that the majority of the E+ cells are inactive in this assay. Depletion of EAC-rosette-forming cells shows that most or all K cells have complement receptors. For depletion of B cells, the lymphocytes may be passed through glass bead columns, charged with F(ab')2 fragments of human IgG and F(ab')2 fragments of rabbit antibodies to the F(ab')2 part of human IgG. These columns give high yields of B-cell depleted fractions. These preparations are rich in E+ cells and contain ˜80% of the Fc-receptor lymphocytes which form rosettes with bovine erythrocytes, coated with IgG antibodies. Their K-cell activity is unchanged or slightly elevated, indicating that mature B cells, i.e. SIg+ cells, have little or no K-cell activity. In contrast, passage of the lymphocytes through immune complex columns (ovalbumin/anti-ovalbumin) leads to ˜ 70% depletion of Fc receptor-bearing cells, while most of the B cells (SIg+ cells) pass through the columns. The relative frequency of E+ cells in the passed fraction frequently shows a slight reduction. These preparations have a very low K-cell activity, indicating that K cells are lymphocytes with Fc receptors of relatively strong avidity.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-3083.1976.tb03856.x
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 7
    Digitale Medien
    Digitale Medien
    Peripheral Blood T-Cell Receptor β-Chain V-Repertoire in Atopic Dermatitis Patients After In Vitro Exposure to Pityrosporum orbiculare Extract (1999)
    Oxford, U.K. and Cambridge, USA : Blackwell Science Ltd
    Scandinavian journal of immunology 49 (1999), S. 0 
    Details
    ISSN: 1365-3083
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: The yeast Pityrosporum orbiculare belongs to the normal cutaneous flora but is also considered to be one of the factors that may contribute to atopic dermatitis (AD). In the present study we investigated the possibility that P. orbiculare can act with superantigen activity in AD. P. orbiculare-reactive T-cell lines (TCLs) were obtained after stimulation of peripheral blood mononuclear cells (PBMC) with P. orbiculare extract. T-cell receptor β-chain V-segment (TCRBV) usage was investigated using monoclonal antibodies and flow cytometry. We could not find any difference in TCRBV usage between AD patients (n = 10) and healthy controls (n = 5), either in fresh PBMC or in P. orbiculare-reactive TCLs. Compared with their original PBMCs the P. orbiculare-reactive TCLs showed a decreased usage of several TCRBVs, although increased usage of certain TCRBVs could be seen in some of the individuals. Further analysis of the CDR3-length polymorphism exhibited a shift in CDR3-length distribution, indicating oligoclonal expansion of T cells specific to different antigens in the P. orbiculare extract. In conclusion we have not found any evidence for superantigen activity in P. orbiculare extract, but our data support the importance of classical major histocompatibility complex (MHC)-restricted allergens in P. orbiculare.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-3083.1999.00506.x
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 8
    Digitale Medien
    Digitale Medien
    Allergen Challenge Alters Intracellular Cytokine Expression (2005)
    Oxford, UK; Malden, USA : Blackwell Science Ltd
    Scandinavian journal of immunology 62 (2005), S. 0 
    Details
    ISSN: 1365-3083
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: The pathophysiology of asthma is complex and engages cascades of events in the cytokine network. We, therefore, investigated the impact of bronchial allergen challenge in humans on the cytokine profile of circulating lymphocytes. Peripheral blood samples from 10 patients with allergic asthma were collected before and 24 h after allergen provocation. Patients who mounted a late-phase reaction were designated dual responders opposite to single responders. Whole blood cells were stimulated by mitogen and intracellular interleukin (IL)-4 and interferon (IFN)-γ were detected by flow cytometry. The allergen challenge induced a decrease in IL-4+CD4+ cells in the patients (P = 0.05), and a significant decrease (P 〈 0.05) in IFN-γ+CD4+ cells was noted in single, but not dual, responders. In addition, there was a significant difference (P 〈 0.01) with respect to the changes in the IFN-γ+CD4+ cells comparing dual and single responders. No corresponding changes were observed in CD8+ cells. The data suggest a possible on-going traffic of IFN-γ and IL-4+CD4+ lymphocytes into the bronchial mucosa in relation to an allergen challenge and generate the hypothesis that a difference exists between single and dual responders in this respect. Because the CD4+IFN-γ-producing cells have the capacity to downregulate the T-helper type 2 response, a reduced capacity in this aspect might contribute to the pathophysiology in dual responders.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-3083.2005.01641.x
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 9
    Digitale Medien
    Digitale Medien
    Cell surface expression of two major yeast allergens in the Pityrosporum genus (1997)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 27 (1997), S. 0 
    Details
    ISSN: 1365-2222
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Background We have previously identified two major allergens of Pityrosporum orbiculare and characterized these as 37 kDa and 67 kDa proteins.Objective In the present study we have investigated the presence and subcellular location of the 37 kDa and 67 kDa allergen components in various members of the genus Pityrosporum as well as in Candida albicans. Candida parapsilosis and Saccharomyces cerevisiae. Methods To detect both cell surface and intracellular expression of the allergens, flow cytometry and confocal laser scanning microscopy (CLSM) were used. The cells were stained with indirect immunofluorescent (IIP) or alkaline phosphatase antialkaline phosphatase (APAAP) methods using mouse monoclonal antibodies (MoAbs)Results Ninety-five per cent of the P. orbiculare (P. ovale) cells cultured for 4 days showed cell surface-binding of the anti-37 kDa MoAb and 88% of the cells bound the anti- 67 kDa MoAb when analysed with IIF and flow cytometry. It was found that the members of the genus Pityrosporum (Malassezia). P. pachydermatis and M. sympodialis, expressed the 37 kDa and 67 kDa allergens to a similar extent as did P. orbiculare. Less than 5% of the cells of the genus Candida and S. cerevisiae showed positive staining with the MoAbs, The CLSM revealed that the 37 kDa and the 67 kDa components were located to the cell wall and could not be detected inside the acetone fixed and APAAP stained yeast cells of the genus Pityrosporum. When the yeast cells were cultured for more than 4 days the expression of both allergens decreased significantly.Conclusion All three members of the genus Pityrosporum express the 37 kDa and 67 kDa major allergens on the cell surface, whereas these proteins could virtually not be detected in the Candida genus and S. cerevisiae.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-2222.1997.tb00749.x
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 10
    Digitale Medien
    Digitale Medien
    Iodinated derivatives of the vasoactive intestinal polypeptide (VIP) are agonists at the cat pancreas and the rat submandibular salivary gland
    Amsterdam : Elsevier
    Regulatory Peptides 16 (1986), S. 183-188 
    Details
    ISSN: 0167-0115
    Schlagwort(e): VIP ; VIP derivatives ; iodination ; rat ; submandibular salivary gland
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Medizin
    Materialart: Digitale Medien
    URL: http://linkinghub.elsevier.com/retrieve/pii/0167-0115(86)90061-3
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...