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  • 1
    Electronic Resource
    Electronic Resource
    A WILD-TYPE μs C-TERMINAL GENE IS EXPRESSED IN BLOOM'S SYNDROME CELLS (1994)
    Oxford, UK : Blackwell Publishing Ltd
    International journal of immunogenetics 21 (1994), S. 0 
    Details
    ISSN: 1744-313X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Selective IgM deficiency is found commonly in patients with Bloom's syndrome (BS). Serum IgM concentrations were low though serum IgG and IgA concentrations were normal in both patients with BS included in the study. In a previous study the authors showed that selective IgM deficiency in BS is due to an abnormality in the maturation of surface IgM-bearing cells into IgM-secreting cells and a failure of secreted μ (μ s) mRNA synthesis. The membrane-bound μ (μ m) and μ s mRNA are produced from transcripts of a single immunoglobulin μ gene by alternative RNA processing pathways. The control of μ s mRN A synthesis depends on the addition of poly(A) to μ s C-terminal segment. The study described here demonstrated that there was no mutation or deletion in the sequence including μ s C-terminal coding sequence, the RNA splice site (GG/TAAAC) at the 5’ end of μ s C-terminal segment, and the AATAAA poly(A) signal sequence, and second GT-rich element immediately down-stream of the cleavage site in both patients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1744-313X.1994.tb00184.x
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  • 2
    Electronic Resource
    Electronic Resource
    Electrical control of spin coherence in semiconductor nanostructures (2001)
    [s.l.] : Macmillian Magazines Ltd.
    Nature 414 (2001), S. 619-622 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The processing of quantum information based on the electron spin degree of freedom requires fast and coherent manipulation of local spins. One approach is to provide spatially selective tuning of the spin splitting—which depends on the g-factor—by using magnetic fields, but this ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/414619a
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  • 3
    Electronic Resource
    Electronic Resource
    Coherent spin manipulation without magnetic fields in strained semiconductors (2004)
    [s.l.] : Macmillian Magazines Ltd.
    Nature 427 (2004), S. 50-53 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A consequence of relativity is that in the presence of an electric field, the spin and momentum states of an electron can be coupled; this is known as spin–orbit coupling. Such an interaction opens a pathway to the manipulation of electron spins within non-magnetic semiconductors, in the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/nature02202
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  • 4
    Electronic Resource
    Electronic Resource
    Role of CD86 (B7–2) in triggering of antigen-specific IgE antibody response by lipopolysaccharide (1998)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS immunology and medical microbiology 21 (1998), S. 0 
    Details
    ISSN: 1574-695X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: The role of CD86 in triggering of ascaris extract-specific IgE antibody response by lipopolysaccharide was studied. The simultaneous administration of anti-CD86 antibody with ascaris extract and lipopolysaccharide prevented the production of IgE antibody response to ascaris extract. CD86+ cells were detected in peritoneal cavities and spleens of mice injected intraperitoneally with lipopolysaccharide. CD86+ cells appeared in peritoneal cavities and spleens eight hours after lipopolysaccharide injection, and they were detectable for a week. CD86+ cells in peritoneal cavities and spleens were mainly surface Ig-positive B-cells and some Ig-negative cells. It was suggested that lipopolysaccharide induced the expression of CD86 mainly on B-cells, and that CD86+ cells induced by lipopolysaccharide injection might play an important role as antigen-presenting cells on triggering of ascaris extract-specific IgE antibody response by lipopolysaccharide.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-695X.1998.tb01178.x
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  • 5
    Electronic Resource
    Electronic Resource
    Altered expression of constitutive type and inducible type heat shock proteins in response of d-galactosamine-sensitized mice to lipopolysaccharide as an experimental endotoxic shock model (1998)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS immunology and medical microbiology 21 (1998), S. 0 
    Details
    ISSN: 1574-695X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: The expression of heat shock proteins (HSPs) as stress-induced proteins was studied in mice injected with d-galactosamine (D-GalN) and lipopolysaccharide (LPS) as an experimental endotoxic shock model. The expression of constitutive type heat shock protein 70 (HSC70) was significantly reduced in livers of mice injected with d-galactosamine and lipopolysaccharide, while its expression was unaffected in livers of mice injected with d-galactosamine or lipopolysaccharide alone. The expression of other constitutive type heat shock proteins, namely HSP60, HSP32 and HSP25 was also reduced in mice injected with d-galactosamine and lipopolysaccharide. On the other hand, inducible type HSP70 was detected in livers from mice injected with d-galactosamine and lipopolysaccharide, but not in livers from mice injected with d-galactosamine or lipopolysaccharide alone. Simultaneous injection of anti-tumor necrosis factor (TNF)-α antibody prevented the liver from reduced expression of constitutive type HSC70, and lead to marked expression of inducible type HSP70 in the liver. Reduced expression of constitutive type HSC70 was also found when d-galactosamine and recombinant TNF-α was injected. Therefore, TNF-α was suggested to play a critical role on altered expression of constitutive HSC70 and inducible type HSP70 in response of d-galactosamine-sensitized mice to lipopolysaccharide.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-695X.1998.tb01147.x
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  • 6
    Electronic Resource
    Electronic Resource
    Expression of intercellular adhesion molecule-1 (ICAM-1) on vascular endothelial cells and renal tubular cells in the generalized Shwartzman reaction as an experimental disseminated intravascular coagulation model (1997)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS immunology and medical microbiology 18 (1997), S. 0 
    Details
    ISSN: 1574-695X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: The participation of adhesion molecules in systemic vascular injuries of the generalized Shwartzman reaction was studied. The generalized Shwartzman reaction was induced in mice by two consecutive injections of lipopolysaccharide. Intercellular adhesion molecule-1 (ICAM-1) was expressed on vascular endothelial cells, renal tubular cells and alveolar wall in generalized Shwartzman reaction-induced mice. The preparative injection of lipopolysaccharides induced ICAM-1 expression in those cells, and the provocative injection of lipopolysaccharides for the generalized Shwartzman reaction augmented it further. The simultaneous administration of anti-gamma interferon antibody with the preparative injection of lipopolysaccharides completely inhibited ICAM-1 expression on vascular endothelial cells. The injection of recombinant gamma interferon in replacement of lipopolysaccharides resulted in ICAM-1 expression. The administration of anti-ICAM-1 antibody together with the provocative injection of lipopolysaccharides significantly blocked the apoptosis of vascular endothelial cells in generalized Shwartzman reaction-induced mice. It was suggested that ICAM-1 expression on vascular endothelial cells might be involved in systemic vascular injuries of the generalized Shwartzman reaction, and that it might be regulated by gamma interferon.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-695X.1997.tb01029.x
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  • 7
    Electronic Resource
    Electronic Resource
    Production of tissue factor in CD14-expressing human umbilical vein endothelial cells by lipopolysaccharide (1999)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 178 (1999), S. 0 
    Details
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Production of tissue factor (TF) in response to lipopolysaccharide (LPS) was examined in human umbilical vein endothelial cells (HUVECs) transfected with human CD14 DNA. The expression of CD14 on HUVECs dramatically enhanced the production of TF at a low concentration of LPS in the absence of fetal calf serum (FCS). On the other hand, mock-transfected HUVECs did not respond to even a high concentration of LPS. TF production in CD14-expressing HUVECs was significantly inhibited by anti-CD14 monoclonal antibody. Addition of FCS to the culture of CD14-expressing HUVECs markedly augmented the LPS-induced TF production, whereas only a marginal effect was observed in mock-transfected HUVECs. The findings suggested that the integration of membrane CD14 rendered HUVECs highly sensitive to LPS in the production of TF irrespective of the presence of FCS.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-6968.1999.tb08682.x
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  • 8
    Electronic Resource
    Electronic Resource
    Lipopolysaccharide induces apoptotic cell death of B memory cells and regulates B cell memory in antigen-nonspecific manner (1996)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS immunology and medical microbiology 15 (1996), S. 0 
    Details
    ISSN: 1574-695X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Abstract Lipopolysaccharide (LPS) was administered into sheep red blood cells (SRBC)-primed mice, and the effect of LPS on SRBC-specific memory cells was investigated. Spleen cells from SRBC-primed mice which were injected with LPS exhibited much lower in vitro secondary plaque-forming cells (PFC) responses to SRBC than those from untreated SRBC-primed mice. The in vitro anti-SRBC response of the spleen cells to LPS was also reduced. The combination experiments of B cells and T cells from SRBC-primed mice which were injected with or without LPS demonstrated that the reduction of immune responses to SRBC after administration of LPS was caused by the defect of SRBC-specific B memory cells, but not T memory cells. B cell type rosette-forming cells (RFC) for SRBC markedly decreased after injection of LPS, while PFC as antibody-forming cells did not increase subsequently. Therefore, the reduction of RFC was not due to their differentiation into PFC. The lymphoid follicles in the spleens from mice injected with LPS were stained positively by in situ nick end labeling specific for fragmented DNA. A large percentage of Ig+ spleen cells from SRBC-primed mice which were injected with LPS was also stained positively. The injection of glucocorticoids into SRBC-primed mice induced similar reduction of B memory cells. It was suggested that LPS might induce apoptosis of B memory cells and regulate B cell memory in antigen-nonspecific manner.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-695X.1996.tb00351.x
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  • 9
    Electronic Resource
    Electronic Resource
    Apoptotic cell death of vascular endothelial cells and renal tubular cells in the generalized Shwartzman reaction (1996)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS immunology and medical microbiology 16 (1996), S. 0 
    Details
    ISSN: 1574-695X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Abstract The participation of apoptotic cell death in the generalized Shwartzman reaction was examined. The generalized Shwartzman reaction was induced in mice by two consecutive injections of lipopolysaccharide. Vascular endothelial cells in various organs of those mice were stained positively by the in situ specific labeling of fragmented DNA. Renal tubules were also stained focally. It was suggested that apoptotic cell death might participate in the development of vascular endothelial cell damage and acute tubular necrosis in the generalized Shwartzman reaction. Simultaneous administration of anti-γ-interferon antibody in the preparative injection of lipopolysaccharide completely blocked apoptosis of vascular endothelial cells. Priming with recombinant γ-interferon instead of lipopolysaccharide could produce apoptosis of vascular endothelial cells. It was suggested that γ-interferon might play a critical role on sensitization of endothelial cells for apoptosis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-695X.1996.tb00137.x
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  • 10
    Electronic Resource
    Electronic Resource
    Role of tumor necrosis factor-α and glucocorticoid on lipopolysaccharide (LPS)-induced apoptosis of thymocytes (1995)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS immunology and medical microbiology 12 (1995), S. 0 
    Details
    ISSN: 1574-695X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Abstract Administration of bacterial lipopolysaccharide (LPS) into mice markedly induced the apoptosis of CD4+8+ thymocytes. The injection of anti-tumor necrosis factor (TNF)-α antibody or RU38486, a glucocorticoid receptor antagonist, into mice definitely inhibited LPS-induced apoptosis of thymocytes. Addition of the sera 1 h after injection of LPS into in vitro cultures of thymocytes caused thymocyte apoptosis. It was also prevented by either anti-TNF-α antibody or RU38486. Further, recombinant TNF-α and hydrocortisone collaborated in induction of the thymocyte apoptosis in vitro. The in vivo phenomenon of LPS-induced apoptosis of thymocytes was reproducible by the in vitro experimental system. It was therefore suggested that both TNF-α and glucocorticoid participate and collaborate as effector molecules in LPS-induced apoptosis of thymocytes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-695X.1995.tb00192.x
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